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linux/net/ipv6/addrconf.c

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Make ipv6_addr_type() more generic so that we can use it for source address selection. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-08 09:38:12 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: ipv6: Standardize prefixes for message logging Add #define pr_fmt(fmt) as appropriate. Add "IPv6: " to appropriate files. Convert printk(KERN_<LEVEL> to pr_<level> (but not KERN_DEBUG). Standardize on "%s: " not "%s(): " when emitting __func__. Use "%s: ", __func__ instead of embedding function name. Coalesce formats, align arguments. ADDRCONF output is now prefixed with "IPv6: " Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-15 14:11:53 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net/*: use linux/kernel.h swap() tcp_sack_swap seems unnecessary so I pushed swap to the caller. Also removed comment that seemed then pointless, and added include when not already there. Compile tested. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-21 13:36:17 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: introduce secret_stable to ipv6_devconf This patch implements the procfs logic for the stable_address knob: The secret is formatted as an ipv6 address and will be stored per interface and per namespace. We track initialized flag and return EIO errors until the secret is set. We don't inherit the secret to newly created namespaces. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:00 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPv4]: Move interface address bits to linux/if_addr.h Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-04 23:04:54 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 17:04:11 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[PATCH] capable/capability.h (net/) net: Use <linux/capability.h> where capable() is used. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-11 12:17:47 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[PATCH] create a kstrdup library function This patch creates a new kstrdup library function and changes the "local" implementations in several places to use this function. Most of the changes come from the sound and net subsystems. The sound part had already been acknowledged by Takashi Iwai and the net part by David S. Miller. I left UML alone for now because I would need more time to read the code carefully before making changes there. Signed-off-by: Paulo Marques <pmarques@grupopie.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-23 00:09:02 -07:00
ipv6: add ipv6_addr_hash() helper Introduce ipv6_addr_hash() helper doing a XOR on all bits of an IPv6 address, with an optimized x86_64 version. Use it in flow dissector, as suggested by Andrew McGregor, to reduce hash collision probabilities in fq_codel (and other users of flow dissector) Use it in ip6_tunnel.c and use more bit shuffling, as suggested by David Laight, as existing hash was ignoring most of them. Use it in sunrpc and use more bit shuffling, using hash_32(). Use it in net/ipv6/addrconf.c, using hash_32() as well. As a cleanup, use it in net/ipv4/tcp_metrics.c Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Andrew McGregor <andrewmcgr@gmail.com> Cc: Dave Taht <dave.taht@gmail.com> Cc: Tom Herbert <therbert@google.com> Cc: David Laight <David.Laight@ACULAB.COM> Cc: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-18 08:11:12 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET]: Make /proc/net per network namespace This patch makes /proc/net per network namespace. It modifies the global variables proc_net and proc_net_stat to be per network namespace. The proc_net file helpers are modified to take a network namespace argument, and all of their callers are fixed to pass &init_net for that argument. This ensures that all of the /proc/net files are only visible and usable in the initial network namespace until the code behind them has been updated to be handle multiple network namespaces. Making /proc/net per namespace is necessary as at least some files in /proc/net depend upon the set of network devices which is per network namespace, and even more files in /proc/net have contents that are relevant to a single network namespace. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-12 12:01:34 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
6lowpan: IPv6 link local address According to the RFC4944 (Transmission of IPv6 Packets over IEEE 802.15.4 Networks), chapter 7: The IPv6 link-local address [RFC4291] for an IEEE 802.15.4 interface is formed by appending the Interface Identifier, as defined above, to the prefix FE80::/64. 10 bits 54 bits 64 bits +----------+-----------------------+----------------------------+ |1111111010| (zeros) | Interface Identifier | +----------+-----------------------+----------------------------+ This patch adds IPv6 address generation support for the 6lowpan interfaces. Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-10 03:25:52 +00:00
firewire net, ipv6: IPv6 over Firewire (RFC3146) support. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-25 08:26:24 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPv6] address: Convert address notification to use rtnl_notify() Fixes a wrong use of current->pid as netlink pid. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-15 00:35:02 -07:00
[IPV6]: Defer IPv6 device initialization until a valid qdisc is specified To judge the timing for DAD, netif_carrier_ok() is used. However, there is a possibility that dev->qdisc stays noop_qdisc even if netif_carrier_ok() returns true. In that case, DAD NS is not sent out. We need to defer the IPv6 device initialization until a valid qdisc is specified. Signed-off-by: Mitsuru Chinen <mitch@linux.vnet.ibm.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 02:53:43 -07:00
net: Add VRF support to IPv6 stack As with IPv4 support for VRFs added to IPv6 stack by replacing hardcoded table ids with possibly device specific ones and manipulating the oif in the flowi6. The flow flags are used to skip oif compare in nexthop lookups if the device is enslaved to a VRF via the L3 master device. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-12 11:47:10 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
rtnl/ipv6: use netconf msg to advertise forwarding status Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:50 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
[IPV6]: Consolidate common SNMP code This patch moves the non-proc SNMP code into addrconf.c and reuses IPv4 SNMP code where applicable. As a result we can skip proc.o if /proc is disabled. Note that I've made a number of functions static since they're only used by addrconf.c for now. If they ever get used elsewhere we can always remove the static. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-24 21:54:09 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules These files are non modular, but need to export symbols using the macros now living in export.h -- call out the include so that things won't break when we remove the implicit presence of module.h from everywhere. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-07-15 11:47:34 -04:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: convert the uses of ADBG and remove the superfluous parentheses Just follow the Joe Perches's opinion, it is a better way to fix the style errors. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-17 10:27:04 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: convert the uses of ADBG and remove the superfluous parentheses Just follow the Joe Perches's opinion, it is a better way to fix the style errors. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-17 10:27:04 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Expose reachable and retrans timer values as msecs Expose reachable and retrans timer values in msecs instead of jiffies. Both timer values are already exposed as msecs in the neighbour table netlink interface. The creation timestamp format with increased precision is kept but cleaned up. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-17 04:12:02 +00:00
ipv6: introduce secret_stable to ipv6_devconf This patch implements the procfs logic for the stable_address knob: The secret is formatted as an ipv6 address and will be stored per interface and per namespace. We track initialized flag and return EIO errors until the secret is set. We don't inherit the secret to newly created namespaces. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:00 +01:00
ipv6: Expose reachable and retrans timer values as msecs Expose reachable and retrans timer values in msecs instead of jiffies. Both timer values are already exposed as msecs in the neighbour table netlink interface. The creation timestamp format with increased precision is kept but cleaned up. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-17 04:12:02 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
[NETNS]: Clean out the ipv6-related sysctls creation/destruction The addrconf sysctls and neigh sysctls are registered and unregistered always in pairs, so they can be joined into one (well, two) functions, that accept the struct inet6_dev and do all the job. This also get rids of unneeded ifdefs inside the code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:41:21 -08:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
[NETNS]: Clean out the ipv6-related sysctls creation/destruction The addrconf sysctls and neigh sysctls are registered and unregistered always in pairs, so they can be joined into one (well, two) functions, that accept the struct inet6_dev and do all the job. This also get rids of unneeded ifdefs inside the code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:41:21 -08:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
[NETNS]: Clean out the ipv6-related sysctls creation/destruction The addrconf sysctls and neigh sysctls are registered and unregistered always in pairs, so they can be joined into one (well, two) functions, that accept the struct inet6_dev and do all the job. This also get rids of unneeded ifdefs inside the code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:41:21 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: remove some deadcode __ipv6_regen_rndid no longer returns anything other than 0 so there's no point in verifying what it returns Signed-off-by: Sorin Dumitru <sdumitru@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-30 02:01:45 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: add accept_dad sysctl to control DAD operation. - If 0, disable DAD. - If 1, perform DAD (default). - If >1, perform DAD and disable IPv6 operation if DAD for MAC-based link-local address has been failed (RFC4862 5.4.5). We do not follow RFC4862 by default. Refer to the netdev thread entitled "Linux IPv6 DAD not full conform to RFC 4862 ?" http://www.spinics.net/lists/netdev/msg52027.html Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-28 14:18:38 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: generation of stable privacy addresses for link-local and autoconf This patch implements the stable privacy address generation for link-local and autoconf addresses as specified in RFC7217. RID = F(Prefix, Net_Iface, Network_ID, DAD_Counter, secret_key) is the RID (random identifier). As the hash function F we chose one round of sha1. Prefix will be either the link-local prefix or the router advertised one. As Net_Iface we use the MAC address of the device. DAD_Counter and secret_key are implemented as specified. We don't use Network_ID, as it couples the code too closely to other subsystems. It is specified as optional in the RFC. As Net_Iface we only use the MAC address: we simply have no stable identifier in the kernel we could possibly use: because this code might run very early, we cannot depend on names, as they might be changed by user space early on during the boot process. A new address generation mode is introduced, IN6_ADDR_GEN_MODE_STABLE_PRIVACY. With iproute2 one can switch back to none or eui64 address configuration mode although the stable_secret is already set. We refuse writes to ipv6/conf/all/stable_secret but only allow ipv6/conf/default/stable_secret and the interface specific file to be written to. The default stable_secret is used as the parameter for the namespace, the interface specific can overwrite the secret, e.g. when switching a network configuration from one system to another while inheriting the secret. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:01 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: convert addrconf list to hlist Using hash list macros, simplifies code and helps later RCU. This patch includes some initialization that is not strictly necessary, since an empty hlist node/list is all zero; and list is in BSS and node is allocated with kzalloc. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:10 +00:00
IPv6: convert addrconf hash list to RCU Convert from reader/writer lock to RCU and spinlock for addrconf hash list. Adds an additional helper macro for hlist_for_each_entry_continue_rcu to handle the continue case. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:11 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: rename notifier defines for netdev type change Since generally there could be more netdevices changing type other than bonding, making this event type name "bonding-unrelated" Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-10 10:28:56 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: use addrconf_get_prefix_route for prefix route lookup [v2] Replace ip6_route_lookup() with addrconf_get_prefix_route() when looking up for a prefix route. This ensures that the connected prefix is looked up in the main table, and avoids the selection of other matching routes located in different tables as well as blackhole or prohibited entries. In addition, this fixes an Opps introduced by commit 64c6d08e (ipv6: del unreachable route when an addr is deleted on lo), that would occur when a blackhole or prohibited entry is selected by ip6_route_lookup(). Such entries have a NULL rt6i_table argument, which is accessed by __ip6_del_rt() when trying to lock rt6i_table->tb6_lock. The function addrconf_is_prefix_route() is not used anymore and is removed. [v2] Minor indentation cleanup and log updates. Signed-off-by: Romain Kuntz <r.kuntz@ipflavors.com> Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-09 21:06:03 +00:00
ipv6: Remove unused argument to addrconf_dad_start(). Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-14 21:37:40 -04:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Run DAD when the link becomes ready. If the link was not available when the interface was created, run DAD for pending tentative addresses when the link becomes ready. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:44 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Fix bug in ipv6_chk_same_addr(). hlist_for_each_entry(p...) will not necessarily initialize 'p' to anything if the hlist is empty. GCC notices this and emits a warning. Just return true explicitly when we hit a match, and return false is we fall out of the loop without one. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:18:00 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: make struct ipv6_devconf static struct ipv6_devconf can now become static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-22 14:21:58 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: make unsolicited report intervals configurable for mld Commit cab70040dfd95ee32144f02fade64f0cb94f31a0 ("net: igmp: Reduce Unsolicited report interval to 1s when using IGMPv3") and 2690048c01f32bf45d1c1e1ab3079bc10ad2aea7 ("net: igmp: Allow user-space configuration of igmp unsolicited report interval") by William Manley made igmp unsolicited report intervals configurable per interface and corrected the interval of unsolicited igmpv3 report messages resendings to 1s. Same needs to be done for IPv6: MLDv1 (RFC2710 7.10.): 10 seconds MLDv2 (RFC3810 9.11.): 1 second Both intervals are configurable via new procfs knobs mldv1_unsolicited_report_interval and mldv2_unsolicited_report_interval. (also added .force_mld_version to ipv6_devconf_dflt to bring structs in line without semantic changes) v2: a) Joined documentation update for IPv4 and IPv6 MLD/IGMP unsolicited_report_interval procfs knobs. b) incorporate stylistic feedback from William Manley v3: a) add new DEVCONF_* values to the end of the enum (thanks to David Miller) Cc: Cong Wang <xiyou.wangcong@gmail.com> Cc: William Manley <william.manley@youview.com> Cc: Benjamin LaHaise <bcrl@kvack.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-14 01:03:46 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: White-space cleansing : Line Layouts This patch makes no changes to the logic of the code but simply addresses coding style issues as detected by checkpatch. Both objdump and diff -w show no differences. A number of items are addressed in this patch: * Multiple spaces converted to tabs * Spaces before tabs removed. * Spaces in pointer typing cleansed (char *)foo etc. * Remove space after sizeof * Ensure spacing around comparators such as if statements. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-24 21:53:10 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: ROUTE: Add accept_ra_defrtr sysctl. This controls whether we accept default router information in RAs. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 16:55:08 -08:00
ipv6: Allow accepting RA from local IP addresses. This can be used in virtual networking applications, and may have other uses as well. The option is disabled by default. A specific use case is setting up virtual routers, bridges, and hosts on a single OS without the use of network namespaces or virtual machines. With proper use of ip rules, routing tables, veth interface pairs and/or other virtual interfaces, and applications that can bind to interfaces and/or IP addresses, it is possibly to create one or more virtual routers with multiple hosts attached. The host interfaces can act as IPv6 systems, with radvd running on the ports in the virtual routers. With the option provided in this patch enabled, those hosts can now properly obtain IPv6 addresses from the radvd. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 14:44:53 -07:00
net/ipv6: add sysctl option accept_ra_min_hop_limit Commit 6fd99094de2b ("ipv6: Don't reduce hop limit for an interface") disabled accept hop limit from RA if it is smaller than the current hop limit for security stuff. But this behavior kind of break the RFC definition. RFC 4861, 6.3.4. Processing Received Router Advertisements A Router Advertisement field (e.g., Cur Hop Limit, Reachable Time, and Retrans Timer) may contain a value denoting that it is unspecified. In such cases, the parameter should be ignored and the host should continue using whatever value it is already using. If the received Cur Hop Limit value is non-zero, the host SHOULD set its CurHopLimit variable to the received value. So add sysctl option accept_ra_min_hop_limit to let user choose the minimum hop limit value they can accept from RA. And set default to 1 to meet RFC standards. Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Acked-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-30 14:28:42 +08:00
[IPV6]: ADDRCONF: Add accept_ra_pinfo sysctl. This controls whether we accept Prefix Information in RAs. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 16:55:26 -08:00
[IPV6]: ROUTE: Add accept_ra_rtr_pref sysctl. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 17:05:30 -08:00
[IPV6]: ROUTE: Add router_probe_interval sysctl. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 17:05:47 -08:00
[IPV6]: ROUTE: Add accept_ra_rt_info_max_plen sysctl. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 17:07:03 -08:00
[IPV6]: ROUTE: Add accept_ra_rtr_pref sysctl. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 17:05:30 -08:00
[IPV6] NDISC: Add proxy_ndp sysctl. We do not always need proxy NDP functionality even we enable forwarding. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:43:49 -07:00
[IPV6]: Disallow RH0 by default. A security issue is emerging. Disallow Routing Header Type 0 by default as we have been doing for IPv4. Note: We allow RH2 by default because it is harmless. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-24 14:58:30 -07:00
ipv6: Add disable_ipv6 sysctl to disable IPv6 operaion on specific interface. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-28 14:17:11 +09:00
ipv6 addrconf: add accept_dad sysctl to control DAD operation. - If 0, disable DAD. - If 1, perform DAD (default). - If >1, perform DAD and disable IPv6 operation if DAD for MAC-based link-local address has been failed (RFC4862 5.4.5). We do not follow RFC4862 by default. Refer to the netdev thread entitled "Linux IPv6 DAD not full conform to RFC 4862 ?" http://www.spinics.net/lists/netdev/msg52027.html Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-28 14:18:38 +09:00
ipv6: drop fragmented ndisc packets by default (RFC 6980) This patch implements RFC6980: Drop fragmented ndisc packets by default. If a fragmented ndisc packet is received the user is informed that it is possible to disable the check. Cc: Fernando Gont <fernando@gont.com.ar> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-27 01:36:51 +02:00
net: ipv6: Add sysctl entry to disable MTU updates from RA The kernel forcefully applies MTU values received in router advertisements provided the new MTU is less than the current. This behavior is undesirable when the user space is managing the MTU. Instead a sysctl flag 'accept_ra_mtu' is introduced such that the user space can control whether or not RA provided MTU updates should be applied. The default behavior is unchanged; user space must explicitly set this flag to 0 for RA MTUs to be ignored. Signed-off-by: Harout Hedeshian <harouth@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-20 10:06:05 -07:00
ipv6: introduce secret_stable to ipv6_devconf This patch implements the procfs logic for the stable_address knob: The secret is formatted as an ipv6 address and will be stored per interface and per namespace. We track initialized flag and return EIO errors until the secret is set. We don't inherit the secret to newly created namespaces. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:00 +01:00
ipv6: sysctl to restrict candidate source addresses Per RFC 6724, section 4, "Candidate Source Addresses": It is RECOMMENDED that the candidate source addresses be the set of unicast addresses assigned to the interface that will be used to send to the destination (the "outgoing" interface). Add a sysctl to enable this behaviour. Signed-off-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-22 16:38:25 +09:00
net: ipv6 sysctl option to ignore routes when nexthop link is down Like the ipv4 patch with a similar title, this adds a sysctl to allow the user to change routing behavior based on whether or not the interface associated with the nexthop was an up or down link. The default setting preserves the current behavior, but anyone that enables it will notice that nexthops on down interfaces will no longer be selected: net.ipv6.conf.all.ignore_routes_with_linkdown = 0 net.ipv6.conf.default.ignore_routes_with_linkdown = 0 net.ipv6.conf.lo.ignore_routes_with_linkdown = 0 ... When the above sysctls are set, not only will link status be reported to userspace, but an indication that a nexthop is dead and will not be used is also reported. 1000::/8 via 7000::2 dev p7p1 metric 1024 dead linkdown pref medium 1000::/8 via 8000::2 dev p8p1 metric 1024 pref medium 7000::/8 dev p7p1 proto kernel metric 256 dead linkdown pref medium 8000::/8 dev p8p1 proto kernel metric 256 pref medium 9000::/8 via 8000::2 dev p8p1 metric 2048 pref medium 9000::/8 via 7000::2 dev p7p1 metric 1024 dead linkdown pref medium fe80::/64 dev p7p1 proto kernel metric 256 dead linkdown pref medium fe80::/64 dev p8p1 proto kernel metric 256 pref medium This also adds devconf support and notification when sysctl values change. v2: drop use of rt6i_nhflags since it is not needed right now Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: Dinesh Dutt <ddutt@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-13 10:39:01 -04:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET/IPV4/IPV6]: Change some sysctl variables to __read_mostly Change net/core, ipv4 and ipv6 sysctl variables to __read_mostly. Couldn't actually measure any performance increase while testing (.3% I consider noise), but seems like the right thing to do. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:15:41 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: make unsolicited report intervals configurable for mld Commit cab70040dfd95ee32144f02fade64f0cb94f31a0 ("net: igmp: Reduce Unsolicited report interval to 1s when using IGMPv3") and 2690048c01f32bf45d1c1e1ab3079bc10ad2aea7 ("net: igmp: Allow user-space configuration of igmp unsolicited report interval") by William Manley made igmp unsolicited report intervals configurable per interface and corrected the interval of unsolicited igmpv3 report messages resendings to 1s. Same needs to be done for IPv6: MLDv1 (RFC2710 7.10.): 10 seconds MLDv2 (RFC3810 9.11.): 1 second Both intervals are configurable via new procfs knobs mldv1_unsolicited_report_interval and mldv2_unsolicited_report_interval. (also added .force_mld_version to ipv6_devconf_dflt to bring structs in line without semantic changes) v2: a) Joined documentation update for IPv4 and IPv6 MLD/IGMP unsolicited_report_interval procfs knobs. b) incorporate stylistic feedback from William Manley v3: a) add new DEVCONF_* values to the end of the enum (thanks to David Miller) Cc: Cong Wang <xiyou.wangcong@gmail.com> Cc: William Manley <william.manley@youview.com> Cc: Benjamin LaHaise <bcrl@kvack.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-14 01:03:46 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: ROUTE: Add accept_ra_defrtr sysctl. This controls whether we accept default router information in RAs. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 16:55:08 -08:00
ipv6: Allow accepting RA from local IP addresses. This can be used in virtual networking applications, and may have other uses as well. The option is disabled by default. A specific use case is setting up virtual routers, bridges, and hosts on a single OS without the use of network namespaces or virtual machines. With proper use of ip rules, routing tables, veth interface pairs and/or other virtual interfaces, and applications that can bind to interfaces and/or IP addresses, it is possibly to create one or more virtual routers with multiple hosts attached. The host interfaces can act as IPv6 systems, with radvd running on the ports in the virtual routers. With the option provided in this patch enabled, those hosts can now properly obtain IPv6 addresses from the radvd. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 14:44:53 -07:00
net/ipv6: add sysctl option accept_ra_min_hop_limit Commit 6fd99094de2b ("ipv6: Don't reduce hop limit for an interface") disabled accept hop limit from RA if it is smaller than the current hop limit for security stuff. But this behavior kind of break the RFC definition. RFC 4861, 6.3.4. Processing Received Router Advertisements A Router Advertisement field (e.g., Cur Hop Limit, Reachable Time, and Retrans Timer) may contain a value denoting that it is unspecified. In such cases, the parameter should be ignored and the host should continue using whatever value it is already using. If the received Cur Hop Limit value is non-zero, the host SHOULD set its CurHopLimit variable to the received value. So add sysctl option accept_ra_min_hop_limit to let user choose the minimum hop limit value they can accept from RA. And set default to 1 to meet RFC standards. Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Acked-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-30 14:28:42 +08:00
[IPV6]: ADDRCONF: Add accept_ra_pinfo sysctl. This controls whether we accept Prefix Information in RAs. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 16:55:26 -08:00
[IPV6]: ROUTE: Add accept_ra_rtr_pref sysctl. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 17:05:30 -08:00
[IPV6]: ROUTE: Add router_probe_interval sysctl. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 17:05:47 -08:00
[IPV6]: ROUTE: Add accept_ra_rt_info_max_plen sysctl. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 17:07:03 -08:00
[IPV6]: ROUTE: Add accept_ra_rtr_pref sysctl. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 17:05:30 -08:00
[IPV6] NDISC: Add proxy_ndp sysctl. We do not always need proxy NDP functionality even we enable forwarding. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:43:49 -07:00
[IPV6]: Disallow RH0 by default. A security issue is emerging. Disallow Routing Header Type 0 by default as we have been doing for IPv4. Note: We allow RH2 by default because it is harmless. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-24 14:58:30 -07:00
ipv6: Add disable_ipv6 sysctl to disable IPv6 operaion on specific interface. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-28 14:17:11 +09:00
ipv6 addrconf: add accept_dad sysctl to control DAD operation. - If 0, disable DAD. - If 1, perform DAD (default). - If >1, perform DAD and disable IPv6 operation if DAD for MAC-based link-local address has been failed (RFC4862 5.4.5). We do not follow RFC4862 by default. Refer to the netdev thread entitled "Linux IPv6 DAD not full conform to RFC 4862 ?" http://www.spinics.net/lists/netdev/msg52027.html Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-28 14:18:38 +09:00
ipv6: drop fragmented ndisc packets by default (RFC 6980) This patch implements RFC6980: Drop fragmented ndisc packets by default. If a fragmented ndisc packet is received the user is informed that it is possible to disable the check. Cc: Fernando Gont <fernando@gont.com.ar> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-27 01:36:51 +02:00
net: ipv6: Add sysctl entry to disable MTU updates from RA The kernel forcefully applies MTU values received in router advertisements provided the new MTU is less than the current. This behavior is undesirable when the user space is managing the MTU. Instead a sysctl flag 'accept_ra_mtu' is introduced such that the user space can control whether or not RA provided MTU updates should be applied. The default behavior is unchanged; user space must explicitly set this flag to 0 for RA MTUs to be ignored. Signed-off-by: Harout Hedeshian <harouth@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-20 10:06:05 -07:00
ipv6: introduce secret_stable to ipv6_devconf This patch implements the procfs logic for the stable_address knob: The secret is formatted as an ipv6 address and will be stored per interface and per namespace. We track initialized flag and return EIO errors until the secret is set. We don't inherit the secret to newly created namespaces. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:00 +01:00
ipv6: sysctl to restrict candidate source addresses Per RFC 6724, section 4, "Candidate Source Addresses": It is RECOMMENDED that the candidate source addresses be the set of unicast addresses assigned to the interface that will be used to send to the destination (the "outgoing" interface). Add a sysctl to enable this behaviour. Signed-off-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-22 16:38:25 +09:00
net: ipv6 sysctl option to ignore routes when nexthop link is down Like the ipv4 patch with a similar title, this adds a sysctl to allow the user to change routing behavior based on whether or not the interface associated with the nexthop was an up or down link. The default setting preserves the current behavior, but anyone that enables it will notice that nexthops on down interfaces will no longer be selected: net.ipv6.conf.all.ignore_routes_with_linkdown = 0 net.ipv6.conf.default.ignore_routes_with_linkdown = 0 net.ipv6.conf.lo.ignore_routes_with_linkdown = 0 ... When the above sysctls are set, not only will link status be reported to userspace, but an indication that a nexthop is dead and will not be used is also reported. 1000::/8 via 7000::2 dev p7p1 metric 1024 dead linkdown pref medium 1000::/8 via 8000::2 dev p8p1 metric 1024 pref medium 7000::/8 dev p7p1 proto kernel metric 256 dead linkdown pref medium 8000::/8 dev p8p1 proto kernel metric 256 pref medium 9000::/8 via 8000::2 dev p8p1 metric 2048 pref medium 9000::/8 via 7000::2 dev p7p1 metric 1024 dead linkdown pref medium fe80::/64 dev p7p1 proto kernel metric 256 dead linkdown pref medium fe80::/64 dev p8p1 proto kernel metric 256 pref medium This also adds devconf support and notification when sysctl values change. v2: drop use of rt6i_nhflags since it is not needed right now Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: Dinesh Dutt <ddutt@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-13 10:39:01 -04:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Defer IPv6 device initialization until a valid qdisc is specified To judge the timing for DAD, netif_carrier_ok() is used. However, there is a possibility that dev->qdisc stays noop_qdisc even if netif_carrier_ok() returns true. In that case, DAD NS is not sent out. We need to defer the IPv6 device initialization until a valid qdisc is specified. Signed-off-by: Mitsuru Chinen <mitch@linux.vnet.ibm.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 02:53:43 -07:00
pkt_sched: Add qdisc_tx_is_noop() helper and use in IPV6. This indicates if the NOOP scheduler is what is active for TX on a given device. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-08 23:01:27 -07:00
[IPV6]: Defer IPv6 device initialization until a valid qdisc is specified To judge the timing for DAD, netif_carrier_ok() is used. However, there is a possibility that dev->qdisc stays noop_qdisc even if netif_carrier_ok() returns true. In that case, DAD NS is not sent out. We need to defer the IPv6 device initialization until a valid qdisc is specified. Signed-off-by: Mitsuru Chinen <mitch@linux.vnet.ibm.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 02:53:43 -07:00
pkt_sched: Add qdisc_tx_is_noop() helper and use in IPV6. This indicates if the NOOP scheduler is what is active for TX on a given device. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-08 23:01:27 -07:00
[IPV6]: Defer IPv6 device initialization until a valid qdisc is specified To judge the timing for DAD, netif_carrier_ok() is used. However, there is a possibility that dev->qdisc stays noop_qdisc even if netif_carrier_ok() returns true. In that case, DAD NS is not sent out. We need to defer the IPv6 device initialization until a valid qdisc is specified. Signed-off-by: Mitsuru Chinen <mitch@linux.vnet.ibm.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 02:53:43 -07:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Consolidate common SNMP code This patch moves the non-proc SNMP code into addrconf.c and reuses IPv4 SNMP code where applicable. As a result we can skip proc.o if /proc is disabled. Note that I've made a number of functions static since they're only used by addrconf.c for now. If they ever get used elsewhere we can always remove the static. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-24 21:54:09 -07:00
net: Explicitly initialize u64_stats_sync structures for lockdep In order to enable lockdep on seqcount/seqlock structures, we must explicitly initialize any locks. The u64_stats_sync structure, uses a seqcount, and thus we need to introduce a u64_stats_init() function and use it to initialize the structure. This unfortunately adds a lot of fairly trivial initialization code to a number of drivers. But the benefit of ensuring correctness makes this worth while. Because these changes are required for lockdep to be enabled, and the changes are quite trivial, I've not yet split this patch out into 30-some separate patches, as I figured it would be better to get the various maintainers thoughts on how to best merge this change along with the seqcount lockdep enablement. Feedback would be appreciated! Signed-off-by: John Stultz <john.stultz@linaro.org> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: James Morris <jmorris@namei.org> Cc: Jesse Gross <jesse@nicira.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Mirko Lindner <mlindner@marvell.com> Cc: Patrick McHardy <kaber@trash.net> Cc: Roger Luethi <rl@hellgate.ch> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Simon Horman <horms@verge.net.au> Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Wensong Zhang <wensong@linux-vs.org> Cc: netdev@vger.kernel.org Link: http://lkml.kernel.org/r/1381186321-4906-2-git-send-email-john.stultz@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-07 15:51:58 -07:00
net: clean up snmp stats code commit 8f0ea0fe3a036a47767f9c80e (snmp: reduce percpu needs by 50%) reduced snmp array size to 1, so technically it doesn't have to be an array any more. What's more, after the following commit: commit 933393f58fef9963eac61db8093689544e29a600 Date: Thu Dec 22 11:58:51 2011 -0600 percpu: Remove irqsafe_cpu_xxx variants We simply say that regular this_cpu use must be safe regardless of preemption and interrupt state. That has no material change for x86 and s390 implementations of this_cpu operations. However, arches that do not provide their own implementation for this_cpu operations will now get code generated that disables interrupts instead of preemption. probably no arch wants to have SNMP_ARRAY_SZ == 2. At least after almost 3 years, no one complains. So, just convert the array to a single pointer and remove snmp_mib_init() and snmp_mib_free() as well. Cc: Christoph Lameter <cl@linux.com> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 15:55:55 -07:00
[IPV6]: Consolidate common SNMP code This patch moves the non-proc SNMP code into addrconf.c and reuses IPv4 SNMP code where applicable. As a result we can skip proc.o if /proc is disabled. Note that I've made a number of functions static since they're only used by addrconf.c for now. If they ever get used elsewhere we can always remove the static. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-24 21:54:09 -07:00
net: Explicitly initialize u64_stats_sync structures for lockdep In order to enable lockdep on seqcount/seqlock structures, we must explicitly initialize any locks. The u64_stats_sync structure, uses a seqcount, and thus we need to introduce a u64_stats_init() function and use it to initialize the structure. This unfortunately adds a lot of fairly trivial initialization code to a number of drivers. But the benefit of ensuring correctness makes this worth while. Because these changes are required for lockdep to be enabled, and the changes are quite trivial, I've not yet split this patch out into 30-some separate patches, as I figured it would be better to get the various maintainers thoughts on how to best merge this change along with the seqcount lockdep enablement. Feedback would be appreciated! Signed-off-by: John Stultz <john.stultz@linaro.org> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: James Morris <jmorris@namei.org> Cc: Jesse Gross <jesse@nicira.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Mirko Lindner <mlindner@marvell.com> Cc: Patrick McHardy <kaber@trash.net> Cc: Roger Luethi <rl@hellgate.ch> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Simon Horman <horms@verge.net.au> Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Wensong Zhang <wensong@linux-vs.org> Cc: netdev@vger.kernel.org Link: http://lkml.kernel.org/r/1381186321-4906-2-git-send-email-john.stultz@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-07 15:51:58 -07:00
net: clean up snmp stats code commit 8f0ea0fe3a036a47767f9c80e (snmp: reduce percpu needs by 50%) reduced snmp array size to 1, so technically it doesn't have to be an array any more. What's more, after the following commit: commit 933393f58fef9963eac61db8093689544e29a600 Date: Thu Dec 22 11:58:51 2011 -0600 percpu: Remove irqsafe_cpu_xxx variants We simply say that regular this_cpu use must be safe regardless of preemption and interrupt state. That has no material change for x86 and s390 implementations of this_cpu operations. However, arches that do not provide their own implementation for this_cpu operations will now get code generated that disables interrupts instead of preemption. probably no arch wants to have SNMP_ARRAY_SZ == 2. At least after almost 3 years, no one complains. So, just convert the array to a single pointer and remove snmp_mib_init() and snmp_mib_free() as well. Cc: Christoph Lameter <cl@linux.com> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 15:55:55 -07:00
net: Explicitly initialize u64_stats_sync structures for lockdep In order to enable lockdep on seqcount/seqlock structures, we must explicitly initialize any locks. The u64_stats_sync structure, uses a seqcount, and thus we need to introduce a u64_stats_init() function and use it to initialize the structure. This unfortunately adds a lot of fairly trivial initialization code to a number of drivers. But the benefit of ensuring correctness makes this worth while. Because these changes are required for lockdep to be enabled, and the changes are quite trivial, I've not yet split this patch out into 30-some separate patches, as I figured it would be better to get the various maintainers thoughts on how to best merge this change along with the seqcount lockdep enablement. Feedback would be appreciated! Signed-off-by: John Stultz <john.stultz@linaro.org> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: James Morris <jmorris@namei.org> Cc: Jesse Gross <jesse@nicira.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Mirko Lindner <mlindner@marvell.com> Cc: Patrick McHardy <kaber@trash.net> Cc: Roger Luethi <rl@hellgate.ch> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Simon Horman <horms@verge.net.au> Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Wensong Zhang <wensong@linux-vs.org> Cc: netdev@vger.kernel.org Link: http://lkml.kernel.org/r/1381186321-4906-2-git-send-email-john.stultz@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-07 15:51:58 -07:00
ipv6: reduce per device ICMP mib sizes ipv6 has per device ICMP SNMP counters, taking too much space because they use percpu storage. needed size per device is : (512+4)*sizeof(long)*number_of_possible_cpus*2 On a 32bit kernel, 16 possible cpus, this wastes more than 64kbytes of memory per ipv6 enabled network device, taken in vmalloc pool. Since ICMP messages are rare, just use shared counters (atomic_long_t) Per network space ICMP counters are still using percpu memory, we might also convert them to shared counters in a future patch. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Denys Fedoryshchenko <denys@visp.net.lb> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-19 01:14:23 +00:00
[IPV6]: Consolidate common SNMP code This patch moves the non-proc SNMP code into addrconf.c and reuses IPv4 SNMP code where applicable. As a result we can skip proc.o if /proc is disabled. Note that I've made a number of functions static since they're only used by addrconf.c for now. If they ever get used elsewhere we can always remove the static. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-24 21:54:09 -07:00
ipv6: reduce per device ICMP mib sizes ipv6 has per device ICMP SNMP counters, taking too much space because they use percpu storage. needed size per device is : (512+4)*sizeof(long)*number_of_possible_cpus*2 On a 32bit kernel, 16 possible cpus, this wastes more than 64kbytes of memory per ipv6 enabled network device, taken in vmalloc pool. Since ICMP messages are rare, just use shared counters (atomic_long_t) Per network space ICMP counters are still using percpu memory, we might also convert them to shared counters in a future patch. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Denys Fedoryshchenko <denys@visp.net.lb> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-19 01:14:23 +00:00
[IPV6]: Add ICMPMsgStats MIB (RFC 4293) [rev 2] Background: RFC 4293 deprecates existing individual, named ICMP type counters to be replaced with the ICMPMsgStatsTable. This table includes entries for both IPv4 and IPv6, and requires counting of all ICMP types, whether or not the machine implements the type. These patches "remove" (but not really) the existing counters, and replace them with the ICMPMsgStats tables for v4 and v6. It includes the named counters in the /proc places they were, but gets the values for them from the new tables. It also counts packets generated from raw socket output (e.g., OutEchoes, MLD queries, RA's from radvd, etc). Changes: 1) create icmpmsg_statistics mib 2) create icmpv6msg_statistics mib 3) modify existing counters to use these 4) modify /proc/net/snmp to add "IcmpMsg" with all ICMP types listed by number for easy SNMP parsing 5) modify /proc/net/snmp printing for "Icmp" to get the named data from new counters. [new to 2nd revision] 6) support per-interface ICMP stats 7) use common macro for per-device stat macros Signed-off-by: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-16 16:52:35 -07:00
[IPV6]: Consolidate common SNMP code This patch moves the non-proc SNMP code into addrconf.c and reuses IPv4 SNMP code where applicable. As a result we can skip proc.o if /proc is disabled. Note that I've made a number of functions static since they're only used by addrconf.c for now. If they ever get used elsewhere we can always remove the static. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-24 21:54:09 -07:00
[IPV6]: Add ICMPMsgStats MIB (RFC 4293) [rev 2] Background: RFC 4293 deprecates existing individual, named ICMP type counters to be replaced with the ICMPMsgStatsTable. This table includes entries for both IPv4 and IPv6, and requires counting of all ICMP types, whether or not the machine implements the type. These patches "remove" (but not really) the existing counters, and replace them with the ICMPMsgStats tables for v4 and v6. It includes the named counters in the /proc places they were, but gets the values for them from the new tables. It also counts packets generated from raw socket output (e.g., OutEchoes, MLD queries, RA's from radvd, etc). Changes: 1) create icmpmsg_statistics mib 2) create icmpv6msg_statistics mib 3) modify existing counters to use these 4) modify /proc/net/snmp to add "IcmpMsg" with all ICMP types listed by number for easy SNMP parsing 5) modify /proc/net/snmp printing for "Icmp" to get the named data from new counters. [new to 2nd revision] 6) support per-interface ICMP stats 7) use common macro for per-device stat macros Signed-off-by: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-16 16:52:35 -07:00
ipv6: reduce per device ICMP mib sizes ipv6 has per device ICMP SNMP counters, taking too much space because they use percpu storage. needed size per device is : (512+4)*sizeof(long)*number_of_possible_cpus*2 On a 32bit kernel, 16 possible cpus, this wastes more than 64kbytes of memory per ipv6 enabled network device, taken in vmalloc pool. Since ICMP messages are rare, just use shared counters (atomic_long_t) Per network space ICMP counters are still using percpu memory, we might also convert them to shared counters in a future patch. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Denys Fedoryshchenko <denys@visp.net.lb> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-19 01:14:23 +00:00
[IPV6]: Consolidate common SNMP code This patch moves the non-proc SNMP code into addrconf.c and reuses IPv4 SNMP code where applicable. As a result we can skip proc.o if /proc is disabled. Note that I've made a number of functions static since they're only used by addrconf.c for now. If they ever get used elsewhere we can always remove the static. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-24 21:54:09 -07:00
net: clean up snmp stats code commit 8f0ea0fe3a036a47767f9c80e (snmp: reduce percpu needs by 50%) reduced snmp array size to 1, so technically it doesn't have to be an array any more. What's more, after the following commit: commit 933393f58fef9963eac61db8093689544e29a600 Date: Thu Dec 22 11:58:51 2011 -0600 percpu: Remove irqsafe_cpu_xxx variants We simply say that regular this_cpu use must be safe regardless of preemption and interrupt state. That has no material change for x86 and s390 implementations of this_cpu operations. However, arches that do not provide their own implementation for this_cpu operations will now get code generated that disables interrupts instead of preemption. probably no arch wants to have SNMP_ARRAY_SZ == 2. At least after almost 3 years, no one complains. So, just convert the array to a single pointer and remove snmp_mib_init() and snmp_mib_free() as well. Cc: Christoph Lameter <cl@linux.com> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 15:55:55 -07:00
[IPV6]: Consolidate common SNMP code This patch moves the non-proc SNMP code into addrconf.c and reuses IPv4 SNMP code where applicable. As a result we can skip proc.o if /proc is disabled. Note that I've made a number of functions static since they're only used by addrconf.c for now. If they ever get used elsewhere we can always remove the static. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-24 21:54:09 -07:00
[IPV6]: Cleanup snmp6_alloc_dev() This functions is never called with NULL or not setup argument, so the checks inside are redundant. Also, the return value is always -ENOMEM, so no need in additional variable for this. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-17 21:25:32 -07:00
[IPV6]: Consolidate common SNMP code This patch moves the non-proc SNMP code into addrconf.c and reuses IPv4 SNMP code where applicable. As a result we can skip proc.o if /proc is disabled. Note that I've made a number of functions static since they're only used by addrconf.c for now. If they ever get used elsewhere we can always remove the static. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-24 21:54:09 -07:00
net/ipv6/addrconf.c: Checkpatch cleanups net/ipv6/addrconf.c:340: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable net/ipv6/addrconf.c:342: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:444: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:1337: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable net/ipv6/addrconf.c:1526: ERROR: "(foo*)" should be "(foo *)" net/ipv6/addrconf.c:1671: ERROR: open brace '{' following function declarations go on the next line net/ipv6/addrconf.c:1914: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2368: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2370: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2416: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2437: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2573: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:3797: ERROR: "foo* bar" should be "foo *bar" Signed-off-by: Eldad Zack <eldad@fogrefinery.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-01 07:49:08 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Cleanups for net/ipv6/addrconf.c (kzalloc, early exit) v2 Here are some possible (and trivial) cleanups. - use kzalloc() where possible - invert allocation failure test like if (object) { /* Rest of function here */ } to if (object == NULL) return NULL; /* Rest of function here */ Signed-off-by: Ingo Oeser <ioe-lkml@rameria.de> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 23:01:47 -08:00
ipv6: convert idev_list to list macros Convert to list macro's for the list of addresses per interface in IPv6. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:13 +00:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
[NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS. Introduce per-net_device inlines: dev_net(), dev_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25 21:47:49 +09:00
ipv6: automatically enable stable privacy mode if stable_secret set Bjørn reported that while we switch all interfaces to privacy stable mode when setting the secret, we don't set this mode for new interfaces. This does not make sense, so change this behaviour. Fixes: 622c81d57b392cc ("ipv6: generation of stable privacy addresses for link-local and autoconf") Reported-by: Bjørn Mork <bjorn@mork.no> Cc: Bjørn Mork <bjorn@mork.no> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15 22:59:12 +01:00
[IPV6]: Cleanups for net/ipv6/addrconf.c (kzalloc, early exit) v2 Here are some possible (and trivial) cleanups. - use kzalloc() where possible - invert allocation failure test like if (object) { /* Rest of function here */ } to if (object == NULL) return NULL; /* Rest of function here */ Signed-off-by: Ingo Oeser <ioe-lkml@rameria.de> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 23:01:47 -08:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
[IPV6]: Cleanups for net/ipv6/addrconf.c (kzalloc, early exit) v2 Here are some possible (and trivial) cleanups. - use kzalloc() where possible - invert allocation failure test like if (object) { /* Rest of function here */ } to if (object == NULL) return NULL; /* Rest of function here */ Signed-off-by: Ingo Oeser <ioe-lkml@rameria.de> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 23:01:47 -08:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
[IPV6]: Cleanups for net/ipv6/addrconf.c (kzalloc, early exit) v2 Here are some possible (and trivial) cleanups. - use kzalloc() where possible - invert allocation failure test like if (object) { /* Rest of function here */ } to if (object == NULL) return NULL; /* Rest of function here */ Signed-off-by: Ingo Oeser <ioe-lkml@rameria.de> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 23:01:47 -08:00
net: Disable LRO on devices that are forwarding Large Receive Offload (LRO) is only appropriate for packets that are destined for the host, and should be disabled if received packets may be forwarded. It can also confuse the GSO on output. Add dev_disable_lro() function which uses the appropriate ethtool ops to disable LRO if enabled. Add calls to dev_disable_lro() in br_add_if() and functions that enable IPv4 and IPv6 forwarding. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-19 16:15:47 -07:00
[IPV6]: Cleanups for net/ipv6/addrconf.c (kzalloc, early exit) v2 Here are some possible (and trivial) cleanups. - use kzalloc() where possible - invert allocation failure test like if (object) { /* Rest of function here */ } to if (object == NULL) return NULL; /* Rest of function here */ Signed-off-by: Ingo Oeser <ioe-lkml@rameria.de> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 23:01:47 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Cleanups for net/ipv6/addrconf.c (kzalloc, early exit) v2 Here are some possible (and trivial) cleanups. - use kzalloc() where possible - invert allocation failure test like if (object) { /* Rest of function here */ } to if (object == NULL) return NULL; /* Rest of function here */ Signed-off-by: Ingo Oeser <ioe-lkml@rameria.de> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 23:01:47 -08:00
ipv6: convert the uses of ADBG and remove the superfluous parentheses Just follow the Joe Perches's opinion, it is a better way to fix the style errors. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-17 10:27:04 +08:00
net: ipv6: Standardize prefixes for message logging Add #define pr_fmt(fmt) as appropriate. Add "IPv6: " to appropriate files. Convert printk(KERN_<LEVEL> to pr_<level> (but not KERN_DEBUG). Standardize on "%s: " not "%s(): " when emitting __func__. Use "%s: ", __func__ instead of embedding function name. Coalesce formats, align arguments. ADDRCONF output is now prefixed with "IPv6: " Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-15 14:11:53 +00:00
ipv6: convert the uses of ADBG and remove the superfluous parentheses Just follow the Joe Perches's opinion, it is a better way to fix the style errors. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-17 10:27:04 +08:00
[IPV6]: Cleanups for net/ipv6/addrconf.c (kzalloc, early exit) v2 Here are some possible (and trivial) cleanups. - use kzalloc() where possible - invert allocation failure test like if (object) { /* Rest of function here */ } to if (object == NULL) return NULL; /* Rest of function here */ Signed-off-by: Ingo Oeser <ioe-lkml@rameria.de> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 23:01:47 -08:00
ipv6: fix a possible double free When calling snmp6_alloc_dev fails, the snmp6 relevant memory are freed by snmp6_alloc_dev. Calling in6_dev_finish_destroy will free these memory twice. Double free will lead that undefined behavior occurs. Signed-off-by: Roy Li <rongqing.li@windriver.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-09-20 15:10:16 -04:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
[IPV6]: Cleanups for net/ipv6/addrconf.c (kzalloc, early exit) v2 Here are some possible (and trivial) cleanups. - use kzalloc() where possible - invert allocation failure test like if (object) { /* Rest of function here */ } to if (object == NULL) return NULL; /* Rest of function here */ Signed-off-by: Ingo Oeser <ioe-lkml@rameria.de> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 23:01:47 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Cleanups for net/ipv6/addrconf.c (kzalloc, early exit) v2 Here are some possible (and trivial) cleanups. - use kzalloc() where possible - invert allocation failure test like if (object) { /* Rest of function here */ } to if (object == NULL) return NULL; /* Rest of function here */ Signed-off-by: Ingo Oeser <ioe-lkml@rameria.de> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 23:01:47 -08:00
ipv6: convert the uses of ADBG and remove the superfluous parentheses Just follow the Joe Perches's opinion, it is a better way to fix the style errors. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-17 10:27:04 +08:00
net: ipv6: Standardize prefixes for message logging Add #define pr_fmt(fmt) as appropriate. Add "IPv6: " to appropriate files. Convert printk(KERN_<LEVEL> to pr_<level> (but not KERN_DEBUG). Standardize on "%s: " not "%s(): " when emitting __func__. Use "%s: ", __func__ instead of embedding function name. Coalesce formats, align arguments. ADDRCONF output is now prefixed with "IPv6: " Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-15 14:11:53 +00:00
ipv6: convert the uses of ADBG and remove the superfluous parentheses Just follow the Joe Perches's opinion, it is a better way to fix the style errors. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-17 10:27:04 +08:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
[IPV6]: Cleanups for net/ipv6/addrconf.c (kzalloc, early exit) v2 Here are some possible (and trivial) cleanups. - use kzalloc() where possible - invert allocation failure test like if (object) { /* Rest of function here */ } to if (object == NULL) return NULL; /* Rest of function here */ Signed-off-by: Ingo Oeser <ioe-lkml@rameria.de> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 23:01:47 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Cleanups for net/ipv6/addrconf.c (kzalloc, early exit) v2 Here are some possible (and trivial) cleanups. - use kzalloc() where possible - invert allocation failure test like if (object) { /* Rest of function here */ } to if (object == NULL) return NULL; /* Rest of function here */ Signed-off-by: Ingo Oeser <ioe-lkml@rameria.de> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 23:01:47 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: add accept_dad sysctl to control DAD operation. - If 0, disable DAD. - If 1, perform DAD (default). - If >1, perform DAD and disable IPv6 operation if DAD for MAC-based link-local address has been failed (RFC4862 5.4.5). We do not follow RFC4862 by default. Refer to the netdev thread entitled "Linux IPv6 DAD not full conform to RFC 4862 ?" http://www.spinics.net/lists/netdev/msg52027.html Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-28 14:18:38 +09:00
ipv6: use IS_ENABLED() #if defined(CONFIG_FOO) || defined(CONFIG_FOO_MODULE) can be replaced by #if IS_ENABLED(CONFIG_FOO) Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-29 16:23:10 +00:00
[IPV6] ADDRCONF: Ensure disabling multicast RS even if privacy extensions are disabled. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-13 23:42:18 -07:00
net: ipv6: Standardize prefixes for message logging Add #define pr_fmt(fmt) as appropriate. Add "IPv6: " to appropriate files. Convert printk(KERN_<LEVEL> to pr_<level> (but not KERN_DEBUG). Standardize on "%s: " not "%s(): " when emitting __func__. Use "%s: ", __func__ instead of embedding function name. Coalesce formats, align arguments. ADDRCONF output is now prefixed with "IPv6: " Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-15 14:11:53 +00:00
[IPV6] ADDRCONF: Ensure disabling multicast RS even if privacy extensions are disabled. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-13 23:42:18 -07:00
ipv6: convert temporary address list to list macros Use list macros instead of open coded linked list. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:09 +00:00
[NET]: Convert init_timer into setup_timer Many-many code in the kernel initialized the timer->function and timer->data together with calling init_timer(timer). There is already a helper for this. Use it for networking code. The patch is HUGE, but makes the code 130 lines shorter (98 insertions(+), 228 deletions(-)). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-23 21:20:07 -08:00
[IPV6]: Cleanups for net/ipv6/addrconf.c (kzalloc, early exit) v2 Here are some possible (and trivial) cleanups. - use kzalloc() where possible - invert allocation failure test like if (object) { /* Rest of function here */ } to if (object == NULL) return NULL; /* Rest of function here */ Signed-off-by: Ingo Oeser <ioe-lkml@rameria.de> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 23:01:47 -08:00
[IPV6] ADDRCONF: Don't generate temporary address for ip6-ip6 interface. As far as I can remember, I was going to disable privacy extensions on all "tunnel" interfaces. Disable it on ip6-ip6 interface as well. Also, just remove ifdefs for SIT for simplicity. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-13 23:47:11 -07:00
[IPV6]: Seperate sit driver to extra module (addrconf.c changes) This patch contains the changes to net/ipv6/addrconf.c to remove sit specific code if the sit driver is not selected. Signed-off-by: Joerg Roedel <joro-lkml@zlug.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-10 14:49:53 -07:00
[IPV6]: Cleanups for net/ipv6/addrconf.c (kzalloc, early exit) v2 Here are some possible (and trivial) cleanups. - use kzalloc() where possible - invert allocation failure test like if (object) { /* Rest of function here */ } to if (object == NULL) return NULL; /* Rest of function here */ Signed-off-by: Ingo Oeser <ioe-lkml@rameria.de> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 23:01:47 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Remove privacy config option. The code for privacy extentions is very mature, and making it configurable only gives marginal memory/code savings in exchange for obfuscation and hard to read code via CPP ifdef'ery. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-28 20:07:50 -04:00
net: ipv6: minor: use in6addr_any in token init Since we check for !ipv6_addr_any(&in6_dev->token) in addrconf_prefix_rcv(), make the token initialization on device setup more intuitive by using in6addr_any as an initializer. Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-09 03:47:14 +00:00
[IPV6]: Cleanups for net/ipv6/addrconf.c (kzalloc, early exit) v2 Here are some possible (and trivial) cleanups. - use kzalloc() where possible - invert allocation failure test like if (object) { /* Rest of function here */ } to if (object == NULL) return NULL; /* Rest of function here */ Signed-off-by: Ingo Oeser <ioe-lkml@rameria.de> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 23:01:47 -08:00
[IPV6]: Defer IPv6 device initialization until a valid qdisc is specified To judge the timing for DAD, netif_carrier_ok() is used. However, there is a possibility that dev->qdisc stays noop_qdisc even if netif_carrier_ok() returns true. In that case, DAD NS is not sent out. We need to defer the IPv6 device initialization until a valid qdisc is specified. Signed-off-by: Mitsuru Chinen <mitch@linux.vnet.ibm.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 02:53:43 -07:00
[IPV6]: Set IF_READY if the device is up and has carrier We still need to set the IF_READY flag in ipv6_add_dev for the case where all addresses (including the link-local) are deleted and then recreated. In that case the IPv6 device too will be destroyed and then recreated. In order to prevent the original problem, we simply ensure that the device is up before setting IF_READY. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-27 14:31:52 -07:00
[IPV6]: Cleanups for net/ipv6/addrconf.c (kzalloc, early exit) v2 Here are some possible (and trivial) cleanups. - use kzalloc() where possible - invert allocation failure test like if (object) { /* Rest of function here */ } to if (object == NULL) return NULL; /* Rest of function here */ Signed-off-by: Ingo Oeser <ioe-lkml@rameria.de> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 23:01:47 -08:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
ipv6: clean up dev_snmp6 proc entry when we fail to initialize inet6_dev In ipv6_add_dev, when addrconf_sysctl_register fails, we do not clean up the dev_snmp6 entry that we have already registered for this device. Call snmp6_unregister_dev in this case. Fixes: a317a2f19da7d ("ipv6: fail early when creating netdev named all or default") Reported-by: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-04 14:47:53 +01:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
[IPV4/IPV6]: Fix inet{,6} device initialization order. It is important that we only assign dev->ip{,6}_ptr only after all portions of the inet{,6} are setup. Otherwise we can receive packets before the multicast spinlocks et al. are initialized. Signed-off-by: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-04 12:31:14 -08:00
net: reintroduce missing rcu_assign_pointer() calls commit a9b3cd7f32 (rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER) did a lot of incorrect changes, since it did a complete conversion of rcu_assign_pointer(x, y) to RCU_INIT_POINTER(x, y). We miss needed barriers, even on x86, when y is not NULL. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Stephen Hemminger <shemminger@vyatta.com> CC: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-12 04:41:32 +00:00
[IPV6] MCAST: Fix joining all-node multicast group on device initialization. Join all-node multicast group after assignment of dev->ip6_ptr because it must be assigned when ipv6_dev_mc_inc() is called. This fixes Bug#7817, reported by <gernoth@informatik.uni-erlangen.de>. Closes: 7817 Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-14 21:48:40 -08:00
ipv6: by default join ff01::1 and in case of forwarding ff01::2 and ff05:2 Cc: Erik Hugne <erik.hugne@ericsson.com> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-10 03:50:18 +00:00
[IPV6] MCAST: Fix joining all-node multicast group on device initialization. Join all-node multicast group after assignment of dev->ip6_ptr because it must be assigned when ipv6_dev_mc_inc() is called. This fixes Bug#7817, reported by <gernoth@informatik.uni-erlangen.de>. Closes: 7817 Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-14 21:48:40 -08:00
[IPV6]: Define constants for link-local multicast addresses. - Define link-local all-node / all-router multicast addresses. - Remove ipv6_addr_all_nodes() and ipv6_addr_all_routers(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-10 15:42:11 +09:00
[IPV6] MCAST: Fix joining all-node multicast group on device initialization. Join all-node multicast group after assignment of dev->ip6_ptr because it must be assigned when ipv6_dev_mc_inc() is called. This fixes Bug#7817, reported by <gernoth@informatik.uni-erlangen.de>. Closes: 7817 Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-14 21:48:40 -08:00
IPv6: Fix not join all-router mcast group when forwarding set. When forwarding was set and a new net device is register, we need add this device to the all-router mcast group. Signed-off-by: Li Wei <lw@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-05 14:45:17 +00:00
ipv6: Fix Smatch warning. With commit d6ddef9e641d(IPv6: Fix not join all-router mcast group when forwarding set.) I check 'dev' after it's dereference that leads to a Smatch complaint: net/ipv6/addrconf.c:438 ipv6_add_dev() warn: variable dereferenced before check 'dev' (see line 432) net/ipv6/addrconf.c 431 /* protected by rtnl_lock */ 432 rcu_assign_pointer(dev->ip6_ptr, ndev); ^^^^^^^^^^^^ Old dereference. 433 434 /* Join all-node multicast group */ 435 ipv6_dev_mc_inc(dev, &in6addr_linklocal_allnodes); 436 437 /* Join all-router multicast group if forwarding is set */ 438 if (ndev->cnf.forwarding && dev && (dev->flags & IFF_MULTICAST)) ^^^ Remove the check to avoid the complaint as 'dev' can't be NULL. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Li Wei <lw@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-07 14:58:07 +00:00
IPv6: Fix not join all-router mcast group when forwarding set. When forwarding was set and a new net device is register, we need add this device to the all-router mcast group. Signed-off-by: Li Wei <lw@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-05 14:45:17 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net/ipv6/addrconf.c: Checkpatch cleanups net/ipv6/addrconf.c:340: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable net/ipv6/addrconf.c:342: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:444: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:1337: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable net/ipv6/addrconf.c:1526: ERROR: "(foo*)" should be "(foo *)" net/ipv6/addrconf.c:1671: ERROR: open brace '{' following function declarations go on the next line net/ipv6/addrconf.c:1914: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2368: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2370: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2416: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2437: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2573: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:3797: ERROR: "foo* bar" should be "foo *bar" Signed-off-by: Eldad Zack <eldad@fogrefinery.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-01 07:49:08 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Run DAD when the link becomes ready. If the link was not available when the interface was created, run DAD for pending tentative addresses when the link becomes ready. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:44 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
rtnl/ipv6: use netconf msg to advertise forwarding status Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:50 +00:00
rtnl/ipv6: add support of RTM_GETNETCONF This message allows to get the devconf for an interface. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:51 +00:00
rtnl/ipv6: use netconf msg to advertise forwarding status Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:50 +00:00
ipv6: Protect ->mc_forwarding access with CONFIG_IPV6_MROUTE Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-04 14:46:34 -05:00
netconf: advertise mc_forwarding status This patch advertise the MC_FORWARDING status for IPv4 and IPv6. This field is readonly, only multicast engine in the kernel updates it. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-04 01:13:35 +00:00
ipv6: Protect ->mc_forwarding access with CONFIG_IPV6_MROUTE Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-04 14:46:34 -05:00
netconf: add support for IPv6 proxy_ndp Need to be able to see changes to proxy NDP status on a per interface basis via netlink (analog to proxy_arp). Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 22:37:14 -08:00
rtnl/ipv6: use netconf msg to advertise forwarding status Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:50 +00:00
net: ipv6 sysctl option to ignore routes when nexthop link is down Like the ipv4 patch with a similar title, this adds a sysctl to allow the user to change routing behavior based on whether or not the interface associated with the nexthop was an up or down link. The default setting preserves the current behavior, but anyone that enables it will notice that nexthops on down interfaces will no longer be selected: net.ipv6.conf.all.ignore_routes_with_linkdown = 0 net.ipv6.conf.default.ignore_routes_with_linkdown = 0 net.ipv6.conf.lo.ignore_routes_with_linkdown = 0 ... When the above sysctls are set, not only will link status be reported to userspace, but an indication that a nexthop is dead and will not be used is also reported. 1000::/8 via 7000::2 dev p7p1 metric 1024 dead linkdown pref medium 1000::/8 via 8000::2 dev p8p1 metric 1024 pref medium 7000::/8 dev p7p1 proto kernel metric 256 dead linkdown pref medium 8000::/8 dev p8p1 proto kernel metric 256 pref medium 9000::/8 via 8000::2 dev p8p1 metric 2048 pref medium 9000::/8 via 7000::2 dev p7p1 metric 1024 dead linkdown pref medium fe80::/64 dev p7p1 proto kernel metric 256 dead linkdown pref medium fe80::/64 dev p8p1 proto kernel metric 256 pref medium This also adds devconf support and notification when sysctl values change. v2: drop use of rt6i_nhflags since it is not needed right now Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: Dinesh Dutt <ddutt@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-13 10:39:01 -04:00
rtnl/ipv6: use netconf msg to advertise forwarding status Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:50 +00:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
rtnl/ipv6: use netconf msg to advertise forwarding status Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:50 +00:00
rtnl/ipv6: add support of RTM_GETNETCONF This message allows to get the devconf for an interface. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:51 +00:00
rtnl/ipv6: use netconf msg to advertise forwarding status Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:50 +00:00
ipv6: Protect ->mc_forwarding access with CONFIG_IPV6_MROUTE Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-04 14:46:34 -05:00
netconf: advertise mc_forwarding status This patch advertise the MC_FORWARDING status for IPv4 and IPv6. This field is readonly, only multicast engine in the kernel updates it. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-04 01:13:35 +00:00
ipv6: Protect ->mc_forwarding access with CONFIG_IPV6_MROUTE Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-04 14:46:34 -05:00
netconf: add support for IPv6 proxy_ndp Need to be able to see changes to proxy NDP status on a per interface basis via netlink (analog to proxy_arp). Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 22:37:14 -08:00
net: ipv6 sysctl option to ignore routes when nexthop link is down Like the ipv4 patch with a similar title, this adds a sysctl to allow the user to change routing behavior based on whether or not the interface associated with the nexthop was an up or down link. The default setting preserves the current behavior, but anyone that enables it will notice that nexthops on down interfaces will no longer be selected: net.ipv6.conf.all.ignore_routes_with_linkdown = 0 net.ipv6.conf.default.ignore_routes_with_linkdown = 0 net.ipv6.conf.lo.ignore_routes_with_linkdown = 0 ... When the above sysctls are set, not only will link status be reported to userspace, but an indication that a nexthop is dead and will not be used is also reported. 1000::/8 via 7000::2 dev p7p1 metric 1024 dead linkdown pref medium 1000::/8 via 8000::2 dev p8p1 metric 1024 pref medium 7000::/8 dev p7p1 proto kernel metric 256 dead linkdown pref medium 8000::/8 dev p8p1 proto kernel metric 256 pref medium 9000::/8 via 8000::2 dev p8p1 metric 2048 pref medium 9000::/8 via 7000::2 dev p7p1 metric 1024 dead linkdown pref medium fe80::/64 dev p7p1 proto kernel metric 256 dead linkdown pref medium fe80::/64 dev p8p1 proto kernel metric 256 pref medium This also adds devconf support and notification when sysctl values change. v2: drop use of rt6i_nhflags since it is not needed right now Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: Dinesh Dutt <ddutt@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-13 10:39:01 -04:00
netlink: make nlmsg_end() and genlmsg_end() void Contrary to common expectations for an "int" return, these functions return only a positive value -- if used correctly they cannot even return 0 because the message header will necessarily be in the skb. This makes the very common pattern of if (genlmsg_end(...) < 0) { ... } be a whole bunch of dead code. Many places also simply do return nlmsg_end(...); and the caller is expected to deal with it. This also commonly (at least for me) causes errors, because it is very common to write if (my_function(...)) /* error condition */ and if my_function() does "return nlmsg_end()" this is of course wrong. Additionally, there's not a single place in the kernel that actually needs the message length returned, and if anyone needs it later then it'll be very easy to just use skb->len there. Remove this, and make the functions void. This removes a bunch of dead code as described above. The patch adds lines because I did - return nlmsg_end(...); + nlmsg_end(...); + return 0; I could have preserved all the function's return values by returning skb->len, but instead I've audited all the places calling the affected functions and found that none cared. A few places actually compared the return value with <= 0 in dump functionality, but that could just be changed to < 0 with no change in behaviour, so I opted for the more efficient version. One instance of the error I've made numerous times now is also present in net/phonet/pn_netlink.c in the route_dumpit() function - it didn't check for <0 or <=0 and thus broke out of the loop every single time. I've preserved this since it will (I think) have caused the messages to userspace to be formatted differently with just a single message for every SKB returned to userspace. It's possible that this isn't needed for the tools that actually use this, but I don't even know what they are so couldn't test that changing this behaviour would be acceptable. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-16 22:09:00 +01:00
rtnl/ipv6: use netconf msg to advertise forwarding status Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:50 +00:00
netconf: advertise mc_forwarding status This patch advertise the MC_FORWARDING status for IPv4 and IPv6. This field is readonly, only multicast engine in the kernel updates it. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-04 01:13:35 +00:00
rtnl/ipv6: use netconf msg to advertise forwarding status Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:50 +00:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
rtnl/ipv6: use netconf msg to advertise forwarding status Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:50 +00:00
ipv6: addrconf.c: remove unnecessary "if" the value of err is always negative if it goes to errout, so we don't need to check the value of err. Signed-off-by: Cong Ding <dinggnu@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-18 12:08:56 +00:00
rtnl/ipv6: use netconf msg to advertise forwarding status Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:50 +00:00
rtnl/ipv6: add support of RTM_GETNETCONF This message allows to get the devconf for an interface. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:51 +00:00
netconf: add support for IPv6 proxy_ndp Need to be able to see changes to proxy NDP status on a per interface basis via netlink (analog to proxy_arp). Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 22:37:14 -08:00
net: ipv6 sysctl option to ignore routes when nexthop link is down Like the ipv4 patch with a similar title, this adds a sysctl to allow the user to change routing behavior based on whether or not the interface associated with the nexthop was an up or down link. The default setting preserves the current behavior, but anyone that enables it will notice that nexthops on down interfaces will no longer be selected: net.ipv6.conf.all.ignore_routes_with_linkdown = 0 net.ipv6.conf.default.ignore_routes_with_linkdown = 0 net.ipv6.conf.lo.ignore_routes_with_linkdown = 0 ... When the above sysctls are set, not only will link status be reported to userspace, but an indication that a nexthop is dead and will not be used is also reported. 1000::/8 via 7000::2 dev p7p1 metric 1024 dead linkdown pref medium 1000::/8 via 8000::2 dev p8p1 metric 1024 pref medium 7000::/8 dev p7p1 proto kernel metric 256 dead linkdown pref medium 8000::/8 dev p8p1 proto kernel metric 256 pref medium 9000::/8 via 8000::2 dev p8p1 metric 2048 pref medium 9000::/8 via 7000::2 dev p7p1 metric 1024 dead linkdown pref medium fe80::/64 dev p7p1 proto kernel metric 256 dead linkdown pref medium fe80::/64 dev p8p1 proto kernel metric 256 pref medium This also adds devconf support and notification when sysctl values change. v2: drop use of rt6i_nhflags since it is not needed right now Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: Dinesh Dutt <ddutt@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-13 10:39:01 -04:00
rtnl/ipv6: add support of RTM_GETNETCONF This message allows to get the devconf for an interface. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:51 +00:00
rtnetlink: Remove passing of attributes into rtnl_doit functions With decnet converted, we can finally get rid of rta_buf and its computations around it. It also gets rid of the minimal header length verification since all message handlers do that explicitly anyway. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-21 07:45:29 +00:00
rtnl/ipv6: add support of RTM_GETNETCONF This message allows to get the devconf for an interface. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:51 +00:00
rtnl: RTM_GETNETCONF: fix wrong return value [ Upstream commit a97eb33ff225f34a8124774b3373fd244f0e83ce ] An error response from a RTM_GETNETCONF request can return the positive error value EINVAL in the struct nlmsgerr that can mislead userspace. Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-16 21:43:16 -05:00
rtnl/ipv6: add support of RTM_GETNETCONF This message allows to get the devconf for an interface. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:51 +00:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
rtnl/ipv6: add support of RTM_GETNETCONF This message allows to get the devconf for an interface. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:51 +00:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
rtnl/ipv6: add support of RTM_GETNETCONF This message allows to get the devconf for an interface. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:51 +00:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
rtnl/ipv6: add support of RTM_GETNETCONF This message allows to get the devconf for an interface. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:51 +00:00
netconf: add the handler to dump entries It's useful to be able to get the initial state of all entries. The patch adds the support for IPv4 and IPv6. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-05 23:42:06 +00:00
ipv6: provide addr and netconf dump consistency info This patch adds a dev_addr_genid for IPv6. The goal is to use it, combined with dev_base_seq to check if a change occurs during a netlink dump. If a change is detected, the flag NLM_F_DUMP_INTR is set in the first message after the dump was interrupted. Note that only dump of unicast addresses is checked (multicast and anycast are not checked). Reported-by: Junwei Zhang <junwei.zhang@6wind.com> Reported-by: Hongjun Li <hongjun.li@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-22 06:28:43 +00:00
netconf: add the handler to dump entries It's useful to be able to get the initial state of all entries. The patch adds the support for IPv4 and IPv6. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-05 23:42:06 +00:00
netlink: make nlmsg_end() and genlmsg_end() void Contrary to common expectations for an "int" return, these functions return only a positive value -- if used correctly they cannot even return 0 because the message header will necessarily be in the skb. This makes the very common pattern of if (genlmsg_end(...) < 0) { ... } be a whole bunch of dead code. Many places also simply do return nlmsg_end(...); and the caller is expected to deal with it. This also commonly (at least for me) causes errors, because it is very common to write if (my_function(...)) /* error condition */ and if my_function() does "return nlmsg_end()" this is of course wrong. Additionally, there's not a single place in the kernel that actually needs the message length returned, and if anyone needs it later then it'll be very easy to just use skb->len there. Remove this, and make the functions void. This removes a bunch of dead code as described above. The patch adds lines because I did - return nlmsg_end(...); + nlmsg_end(...); + return 0; I could have preserved all the function's return values by returning skb->len, but instead I've audited all the places calling the affected functions and found that none cared. A few places actually compared the return value with <= 0 in dump functionality, but that could just be changed to < 0 with no change in behaviour, so I opted for the more efficient version. One instance of the error I've made numerous times now is also present in net/phonet/pn_netlink.c in the route_dumpit() function - it didn't check for <0 or <=0 and thus broke out of the loop every single time. I've preserved this since it will (I think) have caused the messages to userspace to be formatted differently with just a single message for every SKB returned to userspace. It's possible that this isn't needed for the tools that actually use this, but I don't even know what they are so couldn't test that changing this behaviour would be acceptable. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-16 22:09:00 +01:00
netconf: add the handler to dump entries It's useful to be able to get the initial state of all entries. The patch adds the support for IPv4 and IPv6. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-05 23:42:06 +00:00
ipv6: provide addr and netconf dump consistency info This patch adds a dev_addr_genid for IPv6. The goal is to use it, combined with dev_base_seq to check if a change occurs during a netlink dump. If a change is detected, the flag NLM_F_DUMP_INTR is set in the first message after the dump was interrupted. Note that only dump of unicast addresses is checked (multicast and anycast are not checked). Reported-by: Junwei Zhang <junwei.zhang@6wind.com> Reported-by: Hongjun Li <hongjun.li@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-22 06:28:43 +00:00
netconf: add the handler to dump entries It's useful to be able to get the initial state of all entries. The patch adds the support for IPv4 and IPv6. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-05 23:42:06 +00:00
netlink: make nlmsg_end() and genlmsg_end() void Contrary to common expectations for an "int" return, these functions return only a positive value -- if used correctly they cannot even return 0 because the message header will necessarily be in the skb. This makes the very common pattern of if (genlmsg_end(...) < 0) { ... } be a whole bunch of dead code. Many places also simply do return nlmsg_end(...); and the caller is expected to deal with it. This also commonly (at least for me) causes errors, because it is very common to write if (my_function(...)) /* error condition */ and if my_function() does "return nlmsg_end()" this is of course wrong. Additionally, there's not a single place in the kernel that actually needs the message length returned, and if anyone needs it later then it'll be very easy to just use skb->len there. Remove this, and make the functions void. This removes a bunch of dead code as described above. The patch adds lines because I did - return nlmsg_end(...); + nlmsg_end(...); + return 0; I could have preserved all the function's return values by returning skb->len, but instead I've audited all the places calling the affected functions and found that none cared. A few places actually compared the return value with <= 0 in dump functionality, but that could just be changed to < 0 with no change in behaviour, so I opted for the more efficient version. One instance of the error I've made numerous times now is also present in net/phonet/pn_netlink.c in the route_dumpit() function - it didn't check for <0 or <=0 and thus broke out of the loop every single time. I've preserved this since it will (I think) have caused the messages to userspace to be formatted differently with just a single message for every SKB returned to userspace. It's possible that this isn't needed for the tools that actually use this, but I don't even know what they are so couldn't test that changing this behaviour would be acceptable. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-16 22:09:00 +01:00
netconf: add the handler to dump entries It's useful to be able to get the initial state of all entries. The patch adds the support for IPv4 and IPv6. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-05 23:42:06 +00:00
netlink: make nlmsg_end() and genlmsg_end() void Contrary to common expectations for an "int" return, these functions return only a positive value -- if used correctly they cannot even return 0 because the message header will necessarily be in the skb. This makes the very common pattern of if (genlmsg_end(...) < 0) { ... } be a whole bunch of dead code. Many places also simply do return nlmsg_end(...); and the caller is expected to deal with it. This also commonly (at least for me) causes errors, because it is very common to write if (my_function(...)) /* error condition */ and if my_function() does "return nlmsg_end()" this is of course wrong. Additionally, there's not a single place in the kernel that actually needs the message length returned, and if anyone needs it later then it'll be very easy to just use skb->len there. Remove this, and make the functions void. This removes a bunch of dead code as described above. The patch adds lines because I did - return nlmsg_end(...); + nlmsg_end(...); + return 0; I could have preserved all the function's return values by returning skb->len, but instead I've audited all the places calling the affected functions and found that none cared. A few places actually compared the return value with <= 0 in dump functionality, but that could just be changed to < 0 with no change in behaviour, so I opted for the more efficient version. One instance of the error I've made numerous times now is also present in net/phonet/pn_netlink.c in the route_dumpit() function - it didn't check for <0 or <=0 and thus broke out of the loop every single time. I've preserved this since it will (I think) have caused the messages to userspace to be formatted differently with just a single message for every SKB returned to userspace. It's possible that this isn't needed for the tools that actually use this, but I don't even know what they are so couldn't test that changing this behaviour would be acceptable. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-16 22:09:00 +01:00
netconf: add the handler to dump entries It's useful to be able to get the initial state of all entries. The patch adds the support for IPv4 and IPv6. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-05 23:42:06 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: Disable LRO on devices that are forwarding Large Receive Offload (LRO) is only appropriate for packets that are destined for the host, and should be disabled if received packets may be forwarded. It can also confuse the GSO on output. Add dev_disable_lro() function which uses the appropriate ethtool ops to disable LRO if enabled. Add calls to dev_disable_lro() in br_add_if() and functions that enable IPv4 and IPv6 forwarding. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-19 16:15:47 -07:00
ipv6: remove a useless NULL check In dev_forward_change(), it is useless to check if idev->dev is NULL, it is always non-NULL here. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-28 17:43:53 +00:00
ipv6: by default join ff01::1 and in case of forwarding ff01::2 and ff05:2 Cc: Erik Hugne <erik.hugne@ericsson.com> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-10 03:50:18 +00:00
[IPV6]: Define constants for link-local multicast addresses. - Define link-local all-node / all-router multicast addresses. - Remove ipv6_addr_all_nodes() and ipv6_addr_all_routers(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-10 15:42:11 +09:00
ipv6: by default join ff01::1 and in case of forwarding ff01::2 and ff05:2 Cc: Erik Hugne <erik.hugne@ericsson.com> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-10 03:50:18 +00:00
[IPV6]: Define constants for link-local multicast addresses. - Define link-local all-node / all-router multicast addresses. - Remove ipv6_addr_all_nodes() and ipv6_addr_all_routers(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-10 15:42:11 +09:00
ipv6: by default join ff01::1 and in case of forwarding ff01::2 and ff05:2 Cc: Erik Hugne <erik.hugne@ericsson.com> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-10 03:50:18 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: convert idev_list to list macros Convert to list macro's for the list of addresses per interface in IPv6. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:13 +00:00
[IPV6]: anycast refcnt fix This patch fixes a bug in Linux IPv6 stack which caused anycast address to be added to a device prior DAD has been completed. This led to incorrect reference count which resulted in infinite wait for unregister_netdevice completion on interface removal. Signed-off-by: Michal Wrobel <xmxwx@asn.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-26 15:36:10 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
rtnl/ipv6: use netconf msg to advertise forwarding status Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:50 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETNS]: Use the per-net ipv6_devconf(_all) in sysctl handlers Actually the net->ipv6.devconf_all can be used in a few places, but to keep the /proc/sys/net/ipv6/conf/ sysctls work consistently in the namespace we should use the per-net devconf_all in the sysctl "forwarding" handler. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:43:50 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: addrconf: Avoid calling netdevice notifiers with RCU read-side lock Cong Wang reports that lockdep detected suspicious RCU usage while enabling IPV6 forwarding: [ 1123.310275] =============================== [ 1123.442202] [ INFO: suspicious RCU usage. ] [ 1123.558207] 3.6.0-rc1+ #109 Not tainted [ 1123.665204] ------------------------------- [ 1123.768254] include/linux/rcupdate.h:430 Illegal context switch in RCU read-side critical section! [ 1123.992320] [ 1123.992320] other info that might help us debug this: [ 1123.992320] [ 1124.307382] [ 1124.307382] rcu_scheduler_active = 1, debug_locks = 0 [ 1124.522220] 2 locks held by sysctl/5710: [ 1124.648364] #0: (rtnl_mutex){+.+.+.}, at: [<ffffffff81768498>] rtnl_trylock+0x15/0x17 [ 1124.882211] #1: (rcu_read_lock){.+.+.+}, at: [<ffffffff81871df8>] rcu_lock_acquire+0x0/0x29 [ 1125.085209] [ 1125.085209] stack backtrace: [ 1125.332213] Pid: 5710, comm: sysctl Not tainted 3.6.0-rc1+ #109 [ 1125.441291] Call Trace: [ 1125.545281] [<ffffffff8109d915>] lockdep_rcu_suspicious+0x109/0x112 [ 1125.667212] [<ffffffff8107c240>] rcu_preempt_sleep_check+0x45/0x47 [ 1125.781838] [<ffffffff8107c260>] __might_sleep+0x1e/0x19b [...] [ 1127.445223] [<ffffffff81757ac5>] call_netdevice_notifiers+0x4a/0x4f [...] [ 1127.772188] [<ffffffff8175e125>] dev_disable_lro+0x32/0x6b [ 1127.885174] [<ffffffff81872d26>] dev_forward_change+0x30/0xcb [ 1128.013214] [<ffffffff818738c4>] addrconf_forward_change+0x85/0xc5 [...] addrconf_forward_change() uses RCU iteration over the netdev list, which is unnecessary since it already holds the RTNL lock. We also cannot reasonably require netdevice notifier functions not to sleep. Reported-by: Cong Wang <amwang@redhat.com> Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14 08:54:51 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETNS]: Use the per-net ipv6_devconf(_all) in sysctl handlers Actually the net->ipv6.devconf_all can be used in a few places, but to keep the /proc/sys/net/ipv6/conf/ sysctls work consistently in the namespace we should use the per-net devconf_all in the sysctl "forwarding" handler. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:43:50 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Eliminate difference in actions of sysctl and proc handler for conf.all.forwarding The only difference in this case is that updating all.forwarding causes the update in default.forwarding when done via proc, but not via the system call. Besides, this consolidates a good portion of code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-05 01:50:24 -08:00
net: race condition in ipv6 forwarding and disable_ipv6 parameters There is a race condition in addrconf_sysctl_forward() and addrconf_sysctl_disable(). These functions change idev->cnf.forwarding (resp. idev->cnf.disable_ipv6) and then try to grab the rtnl lock before performing any actions. If that fails they restore the original value and restart the syscall. This creates race conditions if ipv6 code tries to access these parameters, or if multiple instances try to do the same operation. As an example of the former, if __ipv6_ifa_notify() finds a 0 in idev->cnf.forwarding when invoked by addrconf_ifdown() it may not free anycast addresses, ultimately resulting in the net_device not being freed. This patch reads the user parameters into a temporary location and only writes the actual parameters when the rtnl lock is acquired. Tested in 2.6.38.8. Signed-off-by: Francesco Ruggeri <fruggeri@aristanetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-16 10:40:10 +00:00
[IPV6]: Eliminate difference in actions of sysctl and proc handler for conf.all.forwarding The only difference in this case is that updating all.forwarding causes the update in default.forwarding when done via proc, but not via the system call. Besides, this consolidates a good portion of code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-05 01:50:24 -08:00
[NETNS]: Make the ctl-tables per-namespace This includes passing the net to __addrconf_sysctl_register and saving this on the ctl_table->extra2 to be used in handlers (those, needing it). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:42:13 -08:00
net: race condition in ipv6 forwarding and disable_ipv6 parameters There is a race condition in addrconf_sysctl_forward() and addrconf_sysctl_disable(). These functions change idev->cnf.forwarding (resp. idev->cnf.disable_ipv6) and then try to grab the rtnl lock before performing any actions. If that fails they restore the original value and restart the syscall. This creates race conditions if ipv6 code tries to access these parameters, or if multiple instances try to do the same operation. As an example of the former, if __ipv6_ifa_notify() finds a 0 in idev->cnf.forwarding when invoked by addrconf_ifdown() it may not free anycast addresses, ultimately resulting in the net_device not being freed. This patch reads the user parameters into a temporary location and only writes the actual parameters when the rtnl lock is acquired. Tested in 2.6.38.8. Signed-off-by: Francesco Ruggeri <fruggeri@aristanetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-16 10:40:10 +00:00
[NETNS]: Make the ctl-tables per-namespace This includes passing the net to __addrconf_sysctl_register and saving this on the ctl_table->extra2 to be used in handlers (those, needing it). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:42:13 -08:00
net: race condition in ipv6 forwarding and disable_ipv6 parameters There is a race condition in addrconf_sysctl_forward() and addrconf_sysctl_disable(). These functions change idev->cnf.forwarding (resp. idev->cnf.disable_ipv6) and then try to grab the rtnl lock before performing any actions. If that fails they restore the original value and restart the syscall. This creates race conditions if ipv6 code tries to access these parameters, or if multiple instances try to do the same operation. As an example of the former, if __ipv6_ifa_notify() finds a 0 in idev->cnf.forwarding when invoked by addrconf_ifdown() it may not free anycast addresses, ultimately resulting in the net_device not being freed. This patch reads the user parameters into a temporary location and only writes the actual parameters when the rtnl lock is acquired. Tested in 2.6.38.8. Signed-off-by: Francesco Ruggeri <fruggeri@aristanetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-16 10:40:10 +00:00
ipv6: Fix sysctl unregistration deadlock Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-26 06:55:31 +00:00
net: race condition in ipv6 forwarding and disable_ipv6 parameters There is a race condition in addrconf_sysctl_forward() and addrconf_sysctl_disable(). These functions change idev->cnf.forwarding (resp. idev->cnf.disable_ipv6) and then try to grab the rtnl lock before performing any actions. If that fails they restore the original value and restart the syscall. This creates race conditions if ipv6 code tries to access these parameters, or if multiple instances try to do the same operation. As an example of the former, if __ipv6_ifa_notify() finds a 0 in idev->cnf.forwarding when invoked by addrconf_ifdown() it may not free anycast addresses, ultimately resulting in the net_device not being freed. This patch reads the user parameters into a temporary location and only writes the actual parameters when the rtnl lock is acquired. Tested in 2.6.38.8. Signed-off-by: Francesco Ruggeri <fruggeri@aristanetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-16 10:40:10 +00:00
rtnl/ipv6: use netconf msg to advertise forwarding status Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:50 +00:00
net: race condition in ipv6 forwarding and disable_ipv6 parameters There is a race condition in addrconf_sysctl_forward() and addrconf_sysctl_disable(). These functions change idev->cnf.forwarding (resp. idev->cnf.disable_ipv6) and then try to grab the rtnl lock before performing any actions. If that fails they restore the original value and restart the syscall. This creates race conditions if ipv6 code tries to access these parameters, or if multiple instances try to do the same operation. As an example of the former, if __ipv6_ifa_notify() finds a 0 in idev->cnf.forwarding when invoked by addrconf_ifdown() it may not free anycast addresses, ultimately resulting in the net_device not being freed. This patch reads the user parameters into a temporary location and only writes the actual parameters when the rtnl lock is acquired. Tested in 2.6.38.8. Signed-off-by: Francesco Ruggeri <fruggeri@aristanetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-16 10:40:10 +00:00
net: Fix sysctl restarts... Yuck. It turns out that when we restart sysctls we were restarting with the values already changed. Which unfortunately meant that the second time through we thought there was no change and skipped all kinds of work, despite the fact that there was indeed a change. I have fixed this the simplest way possible by restoring the changed values when we restart the sysctl write. One of my coworkers spotted this bug when after disabling forwarding on an interface pings were still forwarded. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-19 13:22:59 +00:00
[IPV6]: Eliminate difference in actions of sysctl and proc handler for conf.all.forwarding The only difference in this case is that updating all.forwarding causes the update in default.forwarding when done via proc, but not via the system call. Besides, this consolidates a good portion of code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-05 01:50:24 -08:00
[NETNS]: Use the per-net ipv6_devconf(_all) in sysctl handlers Actually the net->ipv6.devconf_all can be used in a few places, but to keep the /proc/sys/net/ipv6/conf/ sysctls work consistently in the namespace we should use the per-net devconf_all in the sysctl "forwarding" handler. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:43:50 -08:00
rtnl/ipv6: use netconf msg to advertise forwarding status Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:50 +00:00
net: race condition in ipv6 forwarding and disable_ipv6 parameters There is a race condition in addrconf_sysctl_forward() and addrconf_sysctl_disable(). These functions change idev->cnf.forwarding (resp. idev->cnf.disable_ipv6) and then try to grab the rtnl lock before performing any actions. If that fails they restore the original value and restart the syscall. This creates race conditions if ipv6 code tries to access these parameters, or if multiple instances try to do the same operation. As an example of the former, if __ipv6_ifa_notify() finds a 0 in idev->cnf.forwarding when invoked by addrconf_ifdown() it may not free anycast addresses, ultimately resulting in the net_device not being freed. This patch reads the user parameters into a temporary location and only writes the actual parameters when the rtnl lock is acquired. Tested in 2.6.38.8. Signed-off-by: Francesco Ruggeri <fruggeri@aristanetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-16 10:40:10 +00:00
[IPV6]: Eliminate difference in actions of sysctl and proc handler for conf.all.forwarding The only difference in this case is that updating all.forwarding causes the update in default.forwarding when done via proc, but not via the system call. Besides, this consolidates a good portion of code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-05 01:50:24 -08:00
net: Disable LRO on devices that are forwarding Large Receive Offload (LRO) is only appropriate for packets that are destined for the host, and should be disabled if received packets may be forwarded. It can also confuse the GSO on output. Add dev_disable_lro() function which uses the appropriate ethtool ops to disable LRO if enabled. Add calls to dev_disable_lro() in br_add_if() and functions that enable IPv4 and IPv6 forwarding. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-19 16:15:47 -07:00
[IPV6]: Eliminate difference in actions of sysctl and proc handler for conf.all.forwarding The only difference in this case is that updating all.forwarding causes the update in default.forwarding when done via proc, but not via the system call. Besides, this consolidates a good portion of code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-05 01:50:24 -08:00
net: race condition in ipv6 forwarding and disable_ipv6 parameters There is a race condition in addrconf_sysctl_forward() and addrconf_sysctl_disable(). These functions change idev->cnf.forwarding (resp. idev->cnf.disable_ipv6) and then try to grab the rtnl lock before performing any actions. If that fails they restore the original value and restart the syscall. This creates race conditions if ipv6 code tries to access these parameters, or if multiple instances try to do the same operation. As an example of the former, if __ipv6_ifa_notify() finds a 0 in idev->cnf.forwarding when invoked by addrconf_ifdown() it may not free anycast addresses, ultimately resulting in the net_device not being freed. This patch reads the user parameters into a temporary location and only writes the actual parameters when the rtnl lock is acquired. Tested in 2.6.38.8. Signed-off-by: Francesco Ruggeri <fruggeri@aristanetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-16 10:40:10 +00:00
[NETNS][IPV6] route6 - Pass the network namespace parameter to rt6_purge_dflt_routers Add a network namespace parameter to rt6_purge_dflt_routers. This is needed to call fib6_get_table with the appropriate network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04 13:47:14 -08:00
ipv6: Fix sysctl unregistration deadlock Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-26 06:55:31 +00:00
[IPV6]: Eliminate difference in actions of sysctl and proc handler for conf.all.forwarding The only difference in this case is that updating all.forwarding causes the update in default.forwarding when done via proc, but not via the system call. Besides, this consolidates a good portion of code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-05 01:50:24 -08:00
net: ipv6 sysctl option to ignore routes when nexthop link is down Like the ipv4 patch with a similar title, this adds a sysctl to allow the user to change routing behavior based on whether or not the interface associated with the nexthop was an up or down link. The default setting preserves the current behavior, but anyone that enables it will notice that nexthops on down interfaces will no longer be selected: net.ipv6.conf.all.ignore_routes_with_linkdown = 0 net.ipv6.conf.default.ignore_routes_with_linkdown = 0 net.ipv6.conf.lo.ignore_routes_with_linkdown = 0 ... When the above sysctls are set, not only will link status be reported to userspace, but an indication that a nexthop is dead and will not be used is also reported. 1000::/8 via 7000::2 dev p7p1 metric 1024 dead linkdown pref medium 1000::/8 via 8000::2 dev p8p1 metric 1024 pref medium 7000::/8 dev p7p1 proto kernel metric 256 dead linkdown pref medium 8000::/8 dev p8p1 proto kernel metric 256 pref medium 9000::/8 via 8000::2 dev p8p1 metric 2048 pref medium 9000::/8 via 7000::2 dev p7p1 metric 1024 dead linkdown pref medium fe80::/64 dev p7p1 proto kernel metric 256 dead linkdown pref medium fe80::/64 dev p8p1 proto kernel metric 256 pref medium This also adds devconf support and notification when sysctl values change. v2: drop use of rt6i_nhflags since it is not needed right now Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: Dinesh Dutt <ddutt@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-13 10:39:01 -04:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: convert addrconf hash list to RCU Convert from reader/writer lock to RCU and spinlock for addrconf hash list. Adds an additional helper macro for hlist_for_each_entry_continue_rcu to handle the continue case. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:11 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: convert addrconf list to hlist Using hash list macros, simplifies code and helps later RCU. This patch includes some initialization that is not strictly necessary, since an empty hlist node/list is all zero; and list is in BSS and node is allocated with kzalloc. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:10 +00:00
net: convert BUG_TRAP to generic WARN_ON Removes legacy reinvent-the-wheel type thing. The generic machinery integrates much better to automated debugging aids such as kerneloops.org (and others), and is unambiguous due to better naming. Non-intuively BUG_TRAP() is actually equal to WARN_ON() rather than BUG_ON() though some might actually be promoted to BUG_ON() but I left that to future. I could make at least one BUILD_BUG_ON conversion. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-25 21:43:18 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: ipv4 and ipv6: Convert printk(KERN_DEBUG to pr_debug Use the current debugging style and enable dynamic_debug. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-15 14:11:54 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Replace inet6_ifaddr->dead with state This patch replaces the boolean dead flag on inet6_ifaddr with a state enum. This allows us to roll back changes when deleting an address according to whether DAD has completed or not. This patch only adds the state field and does not change the logic. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-18 15:36:06 -07:00
net: ipv6: Standardize prefixes for message logging Add #define pr_fmt(fmt) as appropriate. Add "IPv6: " to appropriate files. Convert printk(KERN_<LEVEL> to pr_<level> (but not KERN_DEBUG). Standardize on "%s: " not "%s(): " when emitting __func__. Use "%s: ", __func__ instead of embedding function name. Coalesce formats, align arguments. ADDRCONF output is now prefixed with "IPv6: " Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-15 14:11:53 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: introduce ip6_rt_put() As suggested by Eric, we could introduce a helper function for ipv6 too, to avoid checking if rt is NULL before dst_release(). Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-29 00:13:19 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net,rcu: convert call_rcu(inet6_ifa_finish_destroy_rcu) to kfree_rcu() The rcu callback inet6_ifa_finish_destroy_rcu() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(inet6_ifa_finish_destroy_rcu). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
2011-03-15 18:00:14 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: order addresses by scope If IPv6 addresses are ordered by scope, then ipv6_dev_get_saddr() can break-out of the device addr_list for() loop when the candidate source address scope is less than the destination address scope. Signed-off-by: Brian Haley <brian.haley@hp.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-10 15:25:51 -07:00
ipv6: convert idev_list to list macros Convert to list macro's for the list of addresses per interface in IPv6. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:13 +00:00
[IPV6]: Use ipv6_addr_src_scope for link address sorting. In the source address selection, the address must be sorted from global to node-local. But, ifp->scope is different from the scope for source address selection. 2001::1 fe80::1 ::1 ifp->scope 0 0x02 0x01 ipv6_addr_src_scope(&ifp->addr) 0x0e 0x02 0x01 So, we need to use ipv6_addr_src_scope(&ifp->addr) for sorting. And, for backward compatibility, addresses should be sorted from new one to old one. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-11 13:05:30 -07:00
[IPV6]: order addresses by scope If IPv6 addresses are ordered by scope, then ipv6_dev_get_saddr() can break-out of the device addr_list for() loop when the candidate source address scope is less than the destination address scope. Signed-off-by: Brian Haley <brian.haley@hp.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-10 15:25:51 -07:00
ipv6: convert idev_list to list macros Convert to list macro's for the list of addresses per interface in IPv6. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:13 +00:00
[IPV6]: Use ipv6_addr_src_scope for link address sorting. In the source address selection, the address must be sorted from global to node-local. But, ifp->scope is different from the scope for source address selection. 2001::1 fe80::1 ::1 ifp->scope 0 0x02 0x01 ipv6_addr_src_scope(&ifp->addr) 0x0e 0x02 0x01 So, we need to use ipv6_addr_src_scope(&ifp->addr) for sorting. And, for backward compatibility, addresses should be sorted from new one to old one. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-11 13:05:30 -07:00
[IPV6]: order addresses by scope If IPv6 addresses are ordered by scope, then ipv6_dev_get_saddr() can break-out of the device addr_list for() loop when the candidate source address scope is less than the destination address scope. Signed-off-by: Brian Haley <brian.haley@hp.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-10 15:25:51 -07:00
ipv6: Preserve pervious behavior in ipv6_link_dev_addr(). Use list_add_tail() to get the behavior we had before the list_head conversion for ipv6 address lists. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-25 21:25:30 -07:00
[IPV6]: order addresses by scope If IPv6 addresses are ordered by scope, then ipv6_dev_get_saddr() can break-out of the device addr_list for() loop when the candidate source address scope is less than the destination address scope. Signed-off-by: Brian Haley <brian.haley@hp.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-10 15:25:51 -07:00
ipv6: add ipv6_addr_hash() helper Introduce ipv6_addr_hash() helper doing a XOR on all bits of an IPv6 address, with an optimized x86_64 version. Use it in flow dissector, as suggested by Andrew McGregor, to reduce hash collision probabilities in fq_codel (and other users of flow dissector) Use it in ip6_tunnel.c and use more bit shuffling, as suggested by David Laight, as existing hash was ignoring most of them. Use it in sunrpc and use more bit shuffling, using hash_32(). Use it in net/ipv6/addrconf.c, using hash_32() as well. As a cleanup, use it in net/ipv4/tcp_metrics.c Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Andrew McGregor <andrewmcgr@gmail.com> Cc: Dave Taht <dave.taht@gmail.com> Cc: Tom Herbert <therbert@google.com> Cc: David Laight <David.Laight@ACULAB.COM> Cc: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-18 08:11:12 +00:00
[IPV6] ADDRCONF: Uninline ipv6_addr_hash(). The function is only used in net/ipv6/addrconf.c. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-10 15:42:08 +09:00
ipv6: add ipv6_addr_hash() helper Introduce ipv6_addr_hash() helper doing a XOR on all bits of an IPv6 address, with an optimized x86_64 version. Use it in flow dissector, as suggested by Andrew McGregor, to reduce hash collision probabilities in fq_codel (and other users of flow dissector) Use it in ip6_tunnel.c and use more bit shuffling, as suggested by David Laight, as existing hash was ignoring most of them. Use it in sunrpc and use more bit shuffling, using hash_32(). Use it in net/ipv6/addrconf.c, using hash_32() as well. As a cleanup, use it in net/ipv4/tcp_metrics.c Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Andrew McGregor <andrewmcgr@gmail.com> Cc: Dave Taht <dave.taht@gmail.com> Cc: Tom Herbert <therbert@google.com> Cc: David Laight <David.Laight@ACULAB.COM> Cc: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-18 08:11:12 +00:00
[IPV6] ADDRCONF: Uninline ipv6_addr_hash(). The function is only used in net/ipv6/addrconf.c. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-10 15:42:08 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move peer_addr init into ipv6_add_addr() Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-01 10:41:27 +02:00
ipv6: prevent race between address creation and removal There's a race in IPv6 automatic addess assignment. The address is created with zero lifetime when it's added to various address lists. Before it gets assigned the correct lifetime, there's a window where a new address may be configured. This causes the semi-initiated address to be deleted in addrconf_verify. This was discovered as a reference leak caused by concurrent run of __ipv6_ifa_notify for both RTM_NEWADDR and RTM_DELADDR with the same address. Fix this by setting the lifetime before the address is added to inet6_addr_lst. A few notes: 1. In addrconf_prefix_rcv, by setting update_lft to zero, the if (update_lft) { ... } condition is no longer executed for newly created addresses. This is okay, as the ifp fields are set in ipv6_add_addr now and ipv6_ifa_notify is called (and has been called) through addrconf_dad_start. 2. The removal of the whole block under ifp->lock in inet6_addr_add is okay, too, as tstamp is initialized to jiffies in ipv6_add_addr. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-01 10:41:28 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: user better hash for addrconf The existing hash function has a couple of issues: * it is hardwired to 16 for IN6_ADDR_HSIZE * limited to 256 and callers using int * use jhash2 rather than some old BSD algorithm No need for random seed since this is local only (based on assigned addresses) table. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:12 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Do not assign non-valid address on interface. Check the type of the address when adding a new one on interface. - the unspecified address (::) is always disallowed (RFC4291 2.5.2) - the loopback address is disallowed unless the interface is (one of) loopback (RFC4291 2.5.3). - multicast addresses are disallowed. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-25 16:26:47 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Convert addrconf_lock to RCU. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:44:24 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: Add 'autoconf' and 'disable_ipv6' module parameters Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module. The first controls if IPv6 addresses are autoconfigured from prefixes received in Router Advertisements. The IPv6 loopback (::1) and link-local addresses are still configured. The second controls if IPv6 addresses are desired at all. No IPv6 addresses will be added to any interfaces. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-01 03:07:33 -07:00
ipv6: Fix incorrect disable_ipv6 behavior Fix the behavior of allowing both sysctl and addrconf_dad_failure() to set the disable_ipv6 parameter without any bad side-effects. If DAD fails and accept_dad > 1, we will still set disable_ipv6=1, but then instead of allowing an RA to add an address then immediately fail DAD, we simply don't allow the address to be added in the first place. This also lets the user set this flag and disable all IPv6 addresses on the interface, or on the entire system. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-18 18:22:48 -07:00
IPv6: convert addrconf hash list to RCU Convert from reader/writer lock to RCU and spinlock for addrconf hash list. Adds an additional helper macro for hlist_for_each_entry_continue_rcu to handle the continue case. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:11 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS. Introduce per-net_device inlines: dev_net(), dev_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25 21:47:49 +09:00
ipv6: convert the uses of ADBG and remove the superfluous parentheses Just follow the Joe Perches's opinion, it is a better way to fix the style errors. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-17 10:27:04 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Cleanups for net/ipv6/addrconf.c (kzalloc, early exit) v2 Here are some possible (and trivial) cleanups. - use kzalloc() where possible - invert allocation failure test like if (object) { /* Rest of function here */ } to if (object == NULL) return NULL; /* Rest of function here */ Signed-off-by: Ingo Oeser <ioe-lkml@rameria.de> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 23:01:47 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
ipv6: convert the uses of ADBG and remove the superfluous parentheses Just follow the Joe Perches's opinion, it is a better way to fix the style errors. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-17 10:27:04 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Make third arg to anycast_dst_alloc() bool. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-06 16:48:14 -05:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
neigh: ipv6: respect default values set before an address is assigned to device Make the behaviour similar to ipv4. This will allow user to set sysctl default neigh param values and these values will be respected even by devices registered before (that ones what do not have address set yet). Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-07 19:26:57 +01:00
net: remove ipv6_addr_copy() C assignment can handle struct in6_addr copying. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-21 03:39:03 +00:00
ipv6: move peer_addr init into ipv6_add_addr() Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-01 10:41:27 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
ipv6: convert addrconf list to hlist Using hash list macros, simplifies code and helps later RCU. This patch includes some initialization that is not strictly necessary, since an empty hlist node/list is all zero; and list is in BSS and node is allocated with kzalloc. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:10 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: prevent race between address creation and removal There's a race in IPv6 automatic addess assignment. The address is created with zero lifetime when it's added to various address lists. Before it gets assigned the correct lifetime, there's a window where a new address may be configured. This causes the semi-initiated address to be deleted in addrconf_verify. This was discovered as a reference leak caused by concurrent run of __ipv6_ifa_notify for both RTM_NEWADDR and RTM_DELADDR with the same address. Fix this by setting the lifetime before the address is added to inet6_addr_lst. A few notes: 1. In addrconf_prefix_rcv, by setting update_lft to zero, the if (update_lft) { ... } condition is no longer executed for newly created addresses. This is okay, as the ifp fields are set in ipv6_add_addr now and ipv6_ifa_notify is called (and has been called) through addrconf_dad_start. 2. The removal of the whole block under ifp->lock in inet6_addr_add is okay, too, as tstamp is initialized to jiffies in ipv6_add_addr. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-01 10:41:28 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: ipv6: only invalidate previously tokenized addresses Instead of invalidating all IPv6 addresses with global scope when one decides to use IPv6 tokens, we should only invalidate previous tokens and leave the rest intact until they expire eventually (or are intact forever). For doing this less greedy approach, we're adding a bool at the end of inet6_ifaddr structure instead, for two reasons: i) per-inet6_ifaddr flag space is already used up, making it wider might not be a good idea, since ii) also we do not necessarily need to export this information into user space. Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-09 03:47:16 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: ipv6_add_addr should install dstentry earlier ipv6_add_addr allocates a struct inet6_ifaddr and a dstentry, but it doesn't install the dstentry in ifa->rt until after it releases the addrconf_hash_lock. This means other CPUs will be able to see the new address while it hasn't been initialized completely yet. One possible fix would be to grab the ifp->lock spinlock when creating the address struct; a simpler fix is to just move the assignment. Acked-by: jbeulich@novell.com Acked-by: okir@suse.de Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-29 02:43:49 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: add ipv6_addr_hash() helper Introduce ipv6_addr_hash() helper doing a XOR on all bits of an IPv6 address, with an optimized x86_64 version. Use it in flow dissector, as suggested by Andrew McGregor, to reduce hash collision probabilities in fq_codel (and other users of flow dissector) Use it in ip6_tunnel.c and use more bit shuffling, as suggested by David Laight, as existing hash was ignoring most of them. Use it in sunrpc and use more bit shuffling, using hash_32(). Use it in net/ipv6/addrconf.c, using hash_32() as well. As a cleanup, use it in net/ipv4/tcp_metrics.c Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Andrew McGregor <andrewmcgr@gmail.com> Cc: Dave Taht <dave.taht@gmail.com> Cc: Tom Herbert <therbert@google.com> Cc: David Laight <David.Laight@ACULAB.COM> Cc: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-18 08:11:12 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: convert addrconf hash list to RCU Convert from reader/writer lock to RCU and spinlock for addrconf hash list. Adds an additional helper macro for hlist_for_each_entry_continue_rcu to handle the continue case. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:11 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: order addresses by scope If IPv6 addresses are ordered by scope, then ipv6_dev_get_saddr() can break-out of the device addr_list for() loop when the candidate source address scope is less than the destination address scope. Signed-off-by: Brian Haley <brian.haley@hp.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-10 15:25:51 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: convert temporary address list to list macros Use list macros instead of open coded linked list. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:09 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Convert addrconf_lock to RCU. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:44:24 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Fix a branch prediction From: Tushar Gohad <tgohad@mvista.com> Signed-off-by: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-19 22:27:09 -07:00
ipv6: statically link register_inet6addr_notifier() Tomas reported the following build error: net/built-in.o: In function `ieee80211_unregister_hw': (.text+0x10f0e1): undefined reference to `unregister_inet6addr_notifier' net/built-in.o: In function `ieee80211_register_hw': (.text+0x10f610): undefined reference to `register_inet6addr_notifier' make: *** [vmlinux] Error 1 when built IPv6 as a module. So we have to statically link these symbols. Reported-by: Tomas Melin <tomas.melin@iki.fi> Cc: Tomas Melin <tomas.melin@iki.fi> Cc: "David S. Miller" <davem@davemloft.net> Cc: YOSHIFUJI Hidaki <yoshfuji@linux-ipv6.org> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-14 23:18:43 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: convert addrconf hash list to RCU Convert from reader/writer lock to RCU and spinlock for addrconf hash list. Adds an additional helper macro for hlist_for_each_entry_continue_rcu to handle the continue case. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:11 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: don't cleanup prefix route for IFA_F_NOPREFIXROUTE Refactor the deletion/update of prefix routes when removing an address. Now also consider IFA_F_NOPREFIXROUTE and if there is an address present with this flag, to not cleanup the route. Instead, assume that userspace is taking care of this route. Also perform the same cleanup, when userspace changes an existing address to add NOPREFIXROUTE (to an address that didn't have this flag). This is done because when the address was added, a prefix route was created for it. Since the user now wants to handle this route by himself, we cleanup this route. This cleanup of the route is not totally robust. There is no guarantee, that the route we are about to delete was really the one added by the kernel. This behavior does not change by the patch, and in practice it should work just fine. Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-15 15:36:59 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Use state_lock to protect ifa state This patch makes use of the new state_lock to synchronise between updates to the ifa state. This fixes the issue where a remotely triggered address deletion (through DAD failure) coincides with a local administrative address deletion, causing certain actions to be performed twice incorrectly. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-18 15:54:18 -07:00
ipv6 addrconf: don't cleanup prefix route for IFA_F_NOPREFIXROUTE Refactor the deletion/update of prefix routes when removing an address. Now also consider IFA_F_NOPREFIXROUTE and if there is an address present with this flag, to not cleanup the route. Instead, assume that userspace is taking care of this route. Also perform the same cleanup, when userspace changes an existing address to add NOPREFIXROUTE (to an address that didn't have this flag). This is done because when the address was added, a prefix route was created for it. Since the user now wants to handle this route by himself, we cleanup this route. This cleanup of the route is not totally robust. There is no guarantee, that the route we are about to delete was really the one added by the kernel. This behavior does not change by the patch, and in practice it should work just fine. Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-15 15:36:59 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
ipv6: collapse state_lock and lock Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:03 +01:00
ipv6: Use state_lock to protect ifa state This patch makes use of the new state_lock to synchronise between updates to the ifa state. This fixes the issue where a remotely triggered address deletion (through DAD failure) coincides with a local administrative address deletion, causing certain actions to be performed twice incorrectly. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-18 15:54:18 -07:00
ipv6: Replace inet6_ifaddr->dead with state This patch replaces the boolean dead flag on inet6_ifaddr with a state enum. This allows us to roll back changes when deleting an address according to whether DAD has completed or not. This patch only adds the state field and does not change the logic. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-18 15:36:06 -07:00
ipv6: collapse state_lock and lock Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:03 +01:00
ipv6: Use state_lock to protect ifa state This patch makes use of the new state_lock to synchronise between updates to the ifa state. This fixes the issue where a remotely triggered address deletion (through DAD failure) coincides with a local administrative address deletion, causing certain actions to be performed twice incorrectly. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-18 15:54:18 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: convert addrconf hash list to RCU Convert from reader/writer lock to RCU and spinlock for addrconf hash list. Adds an additional helper macro for hlist_for_each_entry_continue_rcu to handle the continue case. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:11 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: don't cleanup prefix route for IFA_F_NOPREFIXROUTE Refactor the deletion/update of prefix routes when removing an address. Now also consider IFA_F_NOPREFIXROUTE and if there is an address present with this flag, to not cleanup the route. Instead, assume that userspace is taking care of this route. Also perform the same cleanup, when userspace changes an existing address to add NOPREFIXROUTE (to an address that didn't have this flag). This is done because when the address was added, a prefix route was created for it. Since the user now wants to handle this route by himself, we cleanup this route. This cleanup of the route is not totally robust. There is no guarantee, that the route we are about to delete was really the one added by the kernel. This behavior does not change by the patch, and in practice it should work just fine. Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-15 15:36:59 +01:00
ipv6: Remove privacy config option. The code for privacy extentions is very mature, and making it configurable only gives marginal memory/code savings in exchange for obfuscation and hard to read code via CPP ifdef'ery. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-28 20:07:50 -04:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: convert temporary address list to list macros Use list macros instead of open coded linked list. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:09 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: convert temporary address list to list macros Use list macros instead of open coded linked list. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:09 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: don't cleanup prefix route for IFA_F_NOPREFIXROUTE Refactor the deletion/update of prefix routes when removing an address. Now also consider IFA_F_NOPREFIXROUTE and if there is an address present with this flag, to not cleanup the route. Instead, assume that userspace is taking care of this route. Also perform the same cleanup, when userspace changes an existing address to add NOPREFIXROUTE (to an address that didn't have this flag). This is done because when the address was added, a prefix route was created for it. Since the user now wants to handle this route by himself, we cleanup this route. This cleanup of the route is not totally robust. There is no guarantee, that the route we are about to delete was really the one added by the kernel. This behavior does not change by the patch, and in practice it should work just fine. Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-15 15:36:59 +01:00
ipv6: convert idev_list to list macros Convert to list macro's for the list of addresses per interface in IPv6. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:13 +00:00
ipv6 addrconf: don't cleanup prefix route for IFA_F_NOPREFIXROUTE Refactor the deletion/update of prefix routes when removing an address. Now also consider IFA_F_NOPREFIXROUTE and if there is an address present with this flag, to not cleanup the route. Instead, assume that userspace is taking care of this route. Also perform the same cleanup, when userspace changes an existing address to add NOPREFIXROUTE (to an address that didn't have this flag). This is done because when the address was added, a prefix route was created for it. Since the user now wants to handle this route by himself, we cleanup this route. This cleanup of the route is not totally robust. There is no guarantee, that the route we are about to delete was really the one added by the kernel. This behavior does not change by the patch, and in practice it should work just fine. Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-15 15:36:59 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: don't cleanup prefix route for IFA_F_NOPREFIXROUTE Refactor the deletion/update of prefix routes when removing an address. Now also consider IFA_F_NOPREFIXROUTE and if there is an address present with this flag, to not cleanup the route. Instead, assume that userspace is taking care of this route. Also perform the same cleanup, when userspace changes an existing address to add NOPREFIXROUTE (to an address that didn't have this flag). This is done because when the address was added, a prefix route was created for it. Since the user now wants to handle this route by himself, we cleanup this route. This cleanup of the route is not totally robust. There is no guarantee, that the route we are about to delete was really the one added by the kernel. This behavior does not change by the patch, and in practice it should work just fine. Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-15 15:36:59 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
ipv6: fix race between ipv6_del_addr and DAD timer Consider the following scenario: ipv6_del_addr(ifp) ipv6_ifa_notify(RTM_DELADDR, ifp) ip6_del_rt(ifp->rt) after returning from the ipv6_ifa_notify and enabling BH-s back, but *before* calling the addrconf_del_timer the ifp->timer fires and: addrconf_dad_timer(ifp) addrconf_dad_completed(ifp) ipv6_ifa_notify(RTM_NEWADDR, ifp) ip6_ins_rt(ifp->rt) then return back to the ipv6_del_addr and: in6_ifa_put(ifp) inet6_ifa_finish_destroy(ifp) dst_release(&ifp->rt->u.dst) After this we have an ifp->rt inserted into fib6 lists, but queued for gc, which in turn can result in oopses in the fib6_run_gc. Maybe some other nasty things, but we caught only the oops in gc so far. The solution is to disarm the ifp->timer before flushing the rt from it. Signed-off-by: Andrey Vagin <avagin@parallels.com> Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-08 15:13:31 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: statically link register_inet6addr_notifier() Tomas reported the following build error: net/built-in.o: In function `ieee80211_unregister_hw': (.text+0x10f0e1): undefined reference to `unregister_inet6addr_notifier' net/built-in.o: In function `ieee80211_register_hw': (.text+0x10f610): undefined reference to `register_inet6addr_notifier' make: *** [vmlinux] Error 1 when built IPv6 as a module. So we have to statically link these symbols. Reported-by: Tomas Melin <tomas.melin@iki.fi> Cc: Tomas Melin <tomas.melin@iki.fi> Cc: "David S. Miller" <davem@davemloft.net> Cc: YOSHIFUJI Hidaki <yoshfuji@linux-ipv6.org> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-14 23:18:43 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: don't cleanup prefix route for IFA_F_NOPREFIXROUTE Refactor the deletion/update of prefix routes when removing an address. Now also consider IFA_F_NOPREFIXROUTE and if there is an address present with this flag, to not cleanup the route. Instead, assume that userspace is taking care of this route. Also perform the same cleanup, when userspace changes an existing address to add NOPREFIXROUTE (to an address that didn't have this flag). This is done because when the address was added, a prefix route was created for it. Since the user now wants to handle this route by himself, we cleanup this route. This cleanup of the route is not totally robust. There is no guarantee, that the route we are about to delete was really the one added by the kernel. This behavior does not change by the patch, and in practice it should work just fine. Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-15 15:36:59 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: RTA_PREFSRC support for ipv6 route source address selection [ipv6] Add support for RTA_PREFSRC This patch allows a user to select the preferred source address for a specific IPv6-Route. It can be set via a netlink message setting RTA_PREFSRC to a valid IPv6 address which must be up on the device the route will be bound to. Signed-off-by: Daniel Walter <dwalter@barracuda.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-13 21:10:57 +00:00
ipv6: Use state_lock to protect ifa state This patch makes use of the new state_lock to synchronise between updates to the ifa state. This fixes the issue where a remotely triggered address deletion (through DAD failure) coincides with a local administrative address deletion, causing certain actions to be performed twice incorrectly. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-18 15:54:18 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: updates to privacy addresses per RFC 4941. Update the code to handle some of the differences between RFC 3041 and RFC 4941, which obsoletes it. Also a couple of janitorial fixes. - Allow router advertisements to increase the lifetime of temporary addresses. This was not allowed by RFC 3041, but is specified by RFC 4941. It is useful when RA lifetimes are lower than TEMP_{VALID,PREFERRED}_LIFETIME: in this case, the previous code would delete or deprecate addresses prematurely. - Change the default of MAX_RETRY to 3 per RFC 4941. - Add a comment to clarify that the preferred and valid lifetimes in inet6_ifaddr are relative to the timestamp. - Shorten lines to 80 characters in a couple of places. Signed-off-by: Lorenzo Colitti <lorenzo@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-26 13:50:49 +00:00
IPv6: do not create temporary adresses with too short preferred lifetime From RFC341: A temporary address is created only if this calculated Preferred Lifetime is greater than REGEN_ADVANCE time units. In particular, an implementation must not create a temporary address with a zero Preferred Lifetime. Signed-off-by: Benoit Boissinot <benoit.boissinot@ens-lyon.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-02 00:01:35 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
ipv6: updates to privacy addresses per RFC 4941. Update the code to handle some of the differences between RFC 3041 and RFC 4941, which obsoletes it. Also a couple of janitorial fixes. - Allow router advertisements to increase the lifetime of temporary addresses. This was not allowed by RFC 3041, but is specified by RFC 4941. It is useful when RA lifetimes are lower than TEMP_{VALID,PREFERRED}_LIFETIME: in this case, the previous code would delete or deprecate addresses prematurely. - Change the default of MAX_RETRY to 3 per RFC 4941. - Add a comment to clarify that the preferred and valid lifetimes in inet6_ifaddr are relative to the timestamp. - Shorten lines to 80 characters in a couple of places. Signed-off-by: Lorenzo Colitti <lorenzo@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-26 13:50:49 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: introduce IFA_F_MANAGETEMPADDR to tell kernel to manage temporary addresses Creating an address with this flag set will result in kernel taking care of temporary addresses in the same way as if the address was created by kernel itself (after RA receive). This allows userspace applications implementing the autoconfiguration (NetworkManager for example) to implement ipv6 addresses privacy. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:22 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: introduce IFA_F_MANAGETEMPADDR to tell kernel to manage temporary addresses Creating an address with this flag set will result in kernel taking care of temporary addresses in the same way as if the address was created by kernel itself (after RA receive). This allows userspace applications implementing the autoconfiguration (NetworkManager for example) to implement ipv6 addresses privacy. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:22 +01:00
net: ipv6: Standardize prefixes for message logging Add #define pr_fmt(fmt) as appropriate. Add "IPv6: " to appropriate files. Convert printk(KERN_<LEVEL> to pr_<level> (but not KERN_DEBUG). Standardize on "%s: " not "%s(): " when emitting __func__. Use "%s: ", __func__ instead of embedding function name. Coalesce formats, align arguments. ADDRCONF output is now prefixed with "IPv6: " Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-15 14:11:53 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: introduce IFA_F_MANAGETEMPADDR to tell kernel to manage temporary addresses Creating an address with this flag set will result in kernel taking care of temporary addresses in the same way as if the address was created by kernel itself (after RA receive). This allows userspace applications implementing the autoconfiguration (NetworkManager for example) to implement ipv6 addresses privacy. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:22 +01:00
net: ipv6: Standardize prefixes for message logging Add #define pr_fmt(fmt) as appropriate. Add "IPv6: " to appropriate files. Convert printk(KERN_<LEVEL> to pr_<level> (but not KERN_DEBUG). Standardize on "%s: " not "%s(): " when emitting __func__. Use "%s: ", __func__ instead of embedding function name. Coalesce formats, align arguments. ADDRCONF output is now prefixed with "IPv6: " Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-15 14:11:53 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: remove some deadcode __ipv6_regen_rndid no longer returns anything other than 0 so there's no point in verifying what it returns Signed-off-by: Sorin Dumitru <sdumitru@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-30 02:01:45 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: updates to privacy addresses per RFC 4941. Update the code to handle some of the differences between RFC 3041 and RFC 4941, which obsoletes it. Also a couple of janitorial fixes. - Allow router advertisements to increase the lifetime of temporary addresses. This was not allowed by RFC 3041, but is specified by RFC 4941. It is useful when RA lifetimes are lower than TEMP_{VALID,PREFERRED}_LIFETIME: in this case, the previous code would delete or deprecate addresses prematurely. - Change the default of MAX_RETRY to 3 per RFC 4941. - Add a comment to clarify that the preferred and valid lifetimes in inet6_ifaddr are relative to the timestamp. - Shorten lines to 80 characters in a couple of places. Signed-off-by: Lorenzo Colitti <lorenzo@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-26 13:50:49 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: Temp addresses are immediately deleted. There is a bug in the interaction between ipv6_create_tempaddr and addrconf_verify. Because ipv6_create_tempaddr uses the cstamp and tstamp from the public address in creating a private address, if we have not received a router advertisement in a while, tstamp + temp_valid_lft might be < now. If this happens, the new address is created inside ipv6_create_tempaddr, then the loop within addrconf_verify starts again and the address is immediately deleted. We are left with no temporary addresses on the interface, and no more will be created until the public IP address is updated. To avoid this, set the expiry time to be the minimum of the time left on the public address or the config option PLUS the current age of the public interface. Signed-off-by: Glenn Wurster <gwurster@scs.carleton.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-27 07:10:10 +00:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
IPv6: Temp addresses are immediately deleted. There is a bug in the interaction between ipv6_create_tempaddr and addrconf_verify. Because ipv6_create_tempaddr uses the cstamp and tstamp from the public address in creating a private address, if we have not received a router advertisement in a while, tstamp + temp_valid_lft might be < now. If this happens, the new address is created inside ipv6_create_tempaddr, then the loop within addrconf_verify starts again and the address is immediately deleted. We are left with no temporary addresses on the interface, and no more will be created until the public IP address is updated. To avoid this, set the expiry time to be the minimum of the time left on the public address or the config option PLUS the current age of the public interface. Signed-off-by: Glenn Wurster <gwurster@scs.carleton.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-27 07:10:10 +00:00
ipv6: Use interface max_desync_factor instead of static default max_desync_factor can be configured per-interface, but nothing is using the value. Reported-by: Piotr Lewandowski <piotr.lewandowski@gmail.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-26 11:42:55 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: do not create temporary adresses with too short preferred lifetime From RFC341: A temporary address is created only if this calculated Preferred Lifetime is greater than REGEN_ADVANCE time units. In particular, an implementation must not create a temporary address with a zero Preferred Lifetime. Signed-off-by: Benoit Boissinot <benoit.boissinot@ens-lyon.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-02 00:01:35 -07:00
ipv6: White-space cleansing : Line Layouts This patch makes no changes to the logic of the code but simply addresses coding style issues as detected by checkpatch. Both objdump and diff -w show no differences. A number of items are addressed in this patch: * Multiple spaces converted to tabs * Spaces before tabs removed. * Spaces in pointer typing cleansed (char *)foo etc. * Remove space after sizeof * Ensure spacing around comparators such as if statements. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-24 21:53:10 +01:00
ipv6 addrconf: introduce IFA_F_MANAGETEMPADDR to tell kernel to manage temporary addresses Creating an address with this flag set will result in kernel taking care of temporary addresses in the same way as if the address was created by kernel itself (after RA receive). This allows userspace applications implementing the autoconfiguration (NetworkManager for example) to implement ipv6 addresses privacy. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:22 +01:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
IPv6: do not create temporary adresses with too short preferred lifetime From RFC341: A temporary address is created only if this calculated Preferred Lifetime is greater than REGEN_ADVANCE time units. In particular, an implementation must not create a temporary address with a zero Preferred Lifetime. Signed-off-by: Benoit Boissinot <benoit.boissinot@ens-lyon.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-02 00:01:35 -07:00
ipv6: Avoid unnecessary temporary addresses being generated tmp_prefered_lft is an offset to ifp->tstamp, not now. Therefore age needs to be added to the condition. Age calculation in ipv6_create_tempaddr is different from the one in addrconf_verify and doesn't consider ADDRCONF_TIMER_FUZZ_MINUS. This can cause age in ipv6_create_tempaddr to be less than the one in addrconf_verify and therefore unnecessary temporary address to be generated. Use age calculation as in addrconf_modify to avoid this. Signed-off-by: Heiner Kallweit <heiner.kallweit@web.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-12 22:13:19 +01:00
IPv6: do not create temporary adresses with too short preferred lifetime From RFC341: A temporary address is created only if this calculated Preferred Lifetime is greater than REGEN_ADVANCE time units. In particular, an implementation must not create a temporary address with a zero Preferred Lifetime. Signed-off-by: Benoit Boissinot <benoit.boissinot@ens-lyon.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-02 00:01:35 -07:00
ipv6: Avoid unnecessary temporary addresses being generated tmp_prefered_lft is an offset to ifp->tstamp, not now. Therefore age needs to be added to the condition. Age calculation in ipv6_create_tempaddr is different from the one in addrconf_verify and doesn't consider ADDRCONF_TIMER_FUZZ_MINUS. This can cause age in ipv6_create_tempaddr to be less than the one in addrconf_verify and therefore unnecessary temporary address to be generated. Use age calculation as in addrconf_modify to avoid this. Signed-off-by: Heiner Kallweit <heiner.kallweit@web.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-12 22:13:19 +01:00
IPv6: do not create temporary adresses with too short preferred lifetime From RFC341: A temporary address is created only if this calculated Preferred Lifetime is greater than REGEN_ADVANCE time units. In particular, an implementation must not create a temporary address with a zero Preferred Lifetime. Signed-off-by: Benoit Boissinot <benoit.boissinot@ens-lyon.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-02 00:01:35 -07:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
ipv6: remove max_addresses check from ipv6_create_tempaddr Because of the max_addresses check attackers were able to disable privacy extensions on an interface by creating enough autoconfigured addresses: <http://seclists.org/oss-sec/2012/q4/292> But the check is not actually needed: max_addresses protects the kernel to install too many ipv6 addresses on an interface and guards addrconf_prefix_rcv to install further addresses as soon as this limit is reached. We only generate temporary addresses in direct response of a new address showing up. As soon as we filled up the maximum number of addresses of an interface, we stop installing more addresses and thus also stop generating more temp addresses. Even if the attacker tries to generate a lot of temporary addresses by announcing a prefix and removing it again (lifetime == 0) we won't install more temp addresses, because the temporary addresses do count to the maximum number of addresses, thus we would stop installing new autoconfigured addresses when the limit is reached. This patch fixes CVE-2013-0343 (but other layer-2 attacks are still possible). Thanks to Ding Tianhong to bring this topic up again. Cc: Ding Tianhong <dingtianhong@huawei.com> Cc: George Kargiotakis <kargig@void.gr> Cc: P J P <ppandit@redhat.com> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Ding Tianhong <dingtianhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-16 13:02:27 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: ipv6: Standardize prefixes for message logging Add #define pr_fmt(fmt) as appropriate. Add "IPv6: " to appropriate files. Convert printk(KERN_<LEVEL> to pr_<level> (but not KERN_DEBUG). Standardize on "%s: " not "%s(): " when emitting __func__. Use "%s: ", __func__ instead of embedding function name. Coalesce formats, align arguments. ADDRCONF output is now prefixed with "IPv6: " Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-15 14:11:53 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: introduce IFA_F_MANAGETEMPADDR to tell kernel to manage temporary addresses Creating an address with this flag set will result in kernel taking care of temporary addresses in the same way as if the address was created by kernel itself (after RA receive). This allows userspace applications implementing the autoconfiguration (NetworkManager for example) to implement ipv6 addresses privacy. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:22 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: updates to privacy addresses per RFC 4941. Update the code to handle some of the differences between RFC 3041 and RFC 4941, which obsoletes it. Also a couple of janitorial fixes. - Allow router advertisements to increase the lifetime of temporary addresses. This was not allowed by RFC 3041, but is specified by RFC 4941. It is useful when RA lifetimes are lower than TEMP_{VALID,PREFERRED}_LIFETIME: in this case, the previous code would delete or deprecate addresses prematurely. - Change the default of MAX_RETRY to 3 per RFC 4941. - Add a comment to clarify that the preferred and valid lifetimes in inet6_ifaddr are relative to the timestamp. - Shorten lines to 80 characters in a couple of places. Signed-off-by: Lorenzo Colitti <lorenzo@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-26 13:50:49 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Remove unused argument to addrconf_dad_start(). Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-14 21:37:40 -04:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: RFC3484 compliant source address selection Choose more appropriate source address; e.g. - outgoing interface - non-deprecated - scope - matching label Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-08 09:38:30 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
net: ipv6: Add a sysctl to make optimistic addresses useful candidates Add a sysctl that causes an interface's optimistic addresses to be considered equivalent to other non-deprecated addresses for source address selection purposes. Preferred addresses will still take precedence over optimistic addresses, subject to other ranking in the source address selection algorithm. This is useful where different interfaces are connected to different networks from different ISPs (e.g., a cell network and a home wifi network). The current behaviour complies with RFC 3484/6724, and it makes sense if the host has only one interface, or has multiple interfaces on the same network (same or cooperating administrative domain(s), but not in the multiple distinct networks case. For example, if a mobile device has an IPv6 address on an LTE network and then connects to IPv6-enabled wifi, while the wifi IPv6 address is undergoing DAD, IPv6 connections will try use the wifi default route with the LTE IPv6 address, and will get stuck until they time out. Also, because optimistic nodes can receive frames, issue an RTM_NEWADDR as soon as DAD starts (with the IFA_F_OPTIMSTIC flag appropriately set). A second RTM_NEWADDR is sent if DAD completes (the address flags have changed), otherwise an RTM_DELADDR is sent. Also: add an entry in ip-sysctl.txt for optimistic_dad. Signed-off-by: Erik Kline <ek@google.com> Acked-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-28 18:11:14 +09:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
[IPV6]: RFC3484 compliant source address selection Choose more appropriate source address; e.g. - outgoing interface - non-deprecated - scope - matching label Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-08 09:38:30 -08:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
[IPV6]: Make address arguments const. - net/ipv6/addrconf.c: ipv6_get_ifaddr(), ipv6_dev_get_saddr() - net/ipv6/mcast.c: ipv6_sock_mc_join(), ipv6_sock_mc_drop(), inet6_mc_check(), ipv6_dev_mc_inc(), __ipv6_dev_mc_dec(), ipv6_dev_mc_dec(), ipv6_chk_mcast_addr() - net/ipv6/route.c: rt6_lookup(), icmp6_dst_alloc() - net/ipv6/ip6_output.c: ip6_nd_hdr() - net/ipv6/ndisc.c: ndisc_send_ns(), ndisc_send_rs(), ndisc_send_redirect(), ndisc_get_neigh(), __ndisc_send() Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-10 15:42:10 +09:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
[IPV6]: Support Source Address Selection API (RFC5014). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25 09:37:42 +09:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
[IPV6]: RFC3484 compliant source address selection Choose more appropriate source address; e.g. - outgoing interface - non-deprecated - scope - matching label Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-08 09:38:30 -08:00
[NET]: fix up misplaced inlines. Turning up the warnings on gcc makes it emit warnings about the placement of 'inline' in function declarations. Here's everything that was under net/ Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-22 12:27:49 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Remove IPV6_ADDR_RESERVED RFC 4291 section 2.4 states that all uncategorized addresses should be considered as Global Unicast. This will remove IPV6_ADDR_RESERVED completely and return IPV6_ADDR_UNICAST in ipv6_addr_type() instead. Signed-off-by: Ulrich Weber <uweber@astaro.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-25 23:28:58 +00:00
[IPV6]: RFC3484 compliant source address selection Choose more appropriate source address; e.g. - outgoing interface - non-deprecated - scope - matching label Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-08 09:38:30 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: ipv6: Add a sysctl to make optimistic addresses useful candidates Add a sysctl that causes an interface's optimistic addresses to be considered equivalent to other non-deprecated addresses for source address selection purposes. Preferred addresses will still take precedence over optimistic addresses, subject to other ranking in the source address selection algorithm. This is useful where different interfaces are connected to different networks from different ISPs (e.g., a cell network and a home wifi network). The current behaviour complies with RFC 3484/6724, and it makes sense if the host has only one interface, or has multiple interfaces on the same network (same or cooperating administrative domain(s), but not in the multiple distinct networks case. For example, if a mobile device has an IPv6 address on an LTE network and then connects to IPv6-enabled wifi, while the wifi IPv6 address is undergoing DAD, IPv6 connections will try use the wifi default route with the LTE IPv6 address, and will get stuck until they time out. Also, because optimistic nodes can receive frames, issue an RTM_NEWADDR as soon as DAD starts (with the IFA_F_OPTIMSTIC flag appropriately set). A second RTM_NEWADDR is sent if DAD completes (the address flags have changed), otherwise an RTM_DELADDR is sent. Also: add an entry in ip-sysctl.txt for optimistic_dad. Signed-off-by: Erik Kline <ek@google.com> Acked-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-28 18:11:14 +09:00
ipv6 netns: Address labels per namespace This pacth makes IPv6 address labels per network namespace. It keeps the global label tables, ip6addrlbl_table, but adds a 'net' member to each ip6addrlbl_entry. This new member is taken into account when matching labels. Changelog ========= * v1: Initial version * v2: * Minize the penalty when network namespaces are not configured: * the 'net' member is added only if CONFIG_NET_NS is defined. This saves space when network namespaces are not configured. * 'net' value is retrieved with the inlined function ip6addrlbl_net() that always return &init_net when CONFIG_NET_NS is not defined. * 'net' member in ip6addrlbl_entry renamed to the less generic 'lbl_net' name (helps code search). Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-05-28 14:51:24 +02:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
ipv6: addrconf spelling fixes Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-12 11:26:32 -08:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
net: ipv6: Add a sysctl to make optimistic addresses useful candidates Add a sysctl that causes an interface's optimistic addresses to be considered equivalent to other non-deprecated addresses for source address selection purposes. Preferred addresses will still take precedence over optimistic addresses, subject to other ranking in the source address selection algorithm. This is useful where different interfaces are connected to different networks from different ISPs (e.g., a cell network and a home wifi network). The current behaviour complies with RFC 3484/6724, and it makes sense if the host has only one interface, or has multiple interfaces on the same network (same or cooperating administrative domain(s), but not in the multiple distinct networks case. For example, if a mobile device has an IPv6 address on an LTE network and then connects to IPv6-enabled wifi, while the wifi IPv6 address is undergoing DAD, IPv6 connections will try use the wifi default route with the LTE IPv6 address, and will get stuck until they time out. Also, because optimistic nodes can receive frames, issue an RTM_NEWADDR as soon as DAD starts (with the IFA_F_OPTIMSTIC flag appropriately set). A second RTM_NEWADDR is sent if DAD completes (the address flags have changed), otherwise an RTM_DELADDR is sent. Also: add an entry in ip-sysctl.txt for optimistic_dad. Signed-off-by: Erik Kline <ek@google.com> Acked-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-28 18:11:14 +09:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
net: ipv6: Add a sysctl to make optimistic addresses useful candidates Add a sysctl that causes an interface's optimistic addresses to be considered equivalent to other non-deprecated addresses for source address selection purposes. Preferred addresses will still take precedence over optimistic addresses, subject to other ranking in the source address selection algorithm. This is useful where different interfaces are connected to different networks from different ISPs (e.g., a cell network and a home wifi network). The current behaviour complies with RFC 3484/6724, and it makes sense if the host has only one interface, or has multiple interfaces on the same network (same or cooperating administrative domain(s), but not in the multiple distinct networks case. For example, if a mobile device has an IPv6 address on an LTE network and then connects to IPv6-enabled wifi, while the wifi IPv6 address is undergoing DAD, IPv6 connections will try use the wifi default route with the LTE IPv6 address, and will get stuck until they time out. Also, because optimistic nodes can receive frames, issue an RTM_NEWADDR as soon as DAD starts (with the IFA_F_OPTIMSTIC flag appropriately set). A second RTM_NEWADDR is sent if DAD completes (the address flags have changed), otherwise an RTM_DELADDR is sent. Also: add an entry in ip-sysctl.txt for optimistic_dad. Signed-off-by: Erik Kline <ek@google.com> Acked-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-28 18:11:14 +09:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
net: ipv6: Add a sysctl to make optimistic addresses useful candidates Add a sysctl that causes an interface's optimistic addresses to be considered equivalent to other non-deprecated addresses for source address selection purposes. Preferred addresses will still take precedence over optimistic addresses, subject to other ranking in the source address selection algorithm. This is useful where different interfaces are connected to different networks from different ISPs (e.g., a cell network and a home wifi network). The current behaviour complies with RFC 3484/6724, and it makes sense if the host has only one interface, or has multiple interfaces on the same network (same or cooperating administrative domain(s), but not in the multiple distinct networks case. For example, if a mobile device has an IPv6 address on an LTE network and then connects to IPv6-enabled wifi, while the wifi IPv6 address is undergoing DAD, IPv6 connections will try use the wifi default route with the LTE IPv6 address, and will get stuck until they time out. Also, because optimistic nodes can receive frames, issue an RTM_NEWADDR as soon as DAD starts (with the IFA_F_OPTIMSTIC flag appropriately set). A second RTM_NEWADDR is sent if DAD completes (the address flags have changed), otherwise an RTM_DELADDR is sent. Also: add an entry in ip-sysctl.txt for optimistic_dad. Signed-off-by: Erik Kline <ek@google.com> Acked-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-28 18:11:14 +09:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
net: ipv6: Add a sysctl to make optimistic addresses useful candidates Add a sysctl that causes an interface's optimistic addresses to be considered equivalent to other non-deprecated addresses for source address selection purposes. Preferred addresses will still take precedence over optimistic addresses, subject to other ranking in the source address selection algorithm. This is useful where different interfaces are connected to different networks from different ISPs (e.g., a cell network and a home wifi network). The current behaviour complies with RFC 3484/6724, and it makes sense if the host has only one interface, or has multiple interfaces on the same network (same or cooperating administrative domain(s), but not in the multiple distinct networks case. For example, if a mobile device has an IPv6 address on an LTE network and then connects to IPv6-enabled wifi, while the wifi IPv6 address is undergoing DAD, IPv6 connections will try use the wifi default route with the LTE IPv6 address, and will get stuck until they time out. Also, because optimistic nodes can receive frames, issue an RTM_NEWADDR as soon as DAD starts (with the IFA_F_OPTIMSTIC flag appropriately set). A second RTM_NEWADDR is sent if DAD completes (the address flags have changed), otherwise an RTM_DELADDR is sent. Also: add an entry in ip-sysctl.txt for optimistic_dad. Signed-off-by: Erik Kline <ek@google.com> Acked-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-28 18:11:14 +09:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
[IPV6]: Support Source Address Selection API (RFC5014). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25 09:37:42 +09:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
[IPV6]: Support Source Address Selection API (RFC5014). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25 09:37:42 +09:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
[IPV6]: Support Source Address Selection API (RFC5014). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25 09:37:42 +09:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
ipv6 netns: Address labels per namespace This pacth makes IPv6 address labels per network namespace. It keeps the global label tables, ip6addrlbl_table, but adds a 'net' member to each ip6addrlbl_entry. This new member is taken into account when matching labels. Changelog ========= * v1: Initial version * v2: * Minize the penalty when network namespaces are not configured: * the 'net' member is added only if CONFIG_NET_NS is defined. This saves space when network namespaces are not configured. * 'net' value is retrieved with the inlined function ip6addrlbl_net() that always return &init_net when CONFIG_NET_NS is not defined. * 'net' member in ip6addrlbl_entry renamed to the less generic 'lbl_net' name (helps code search). Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-05-28 14:51:24 +02:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
[IPV6]: Support Source Address Selection API (RFC5014). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25 09:37:42 +09:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
Fix common misspellings Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-30 22:57:33 -03:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
[IPV6]: Support Source Address Selection API (RFC5014). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25 09:37:42 +09:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
[IPV6]: Support Source Address Selection API (RFC5014). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25 09:37:42 +09:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
ipv6: Compare addresses only bits up to the prefix length (RFC6724). Compare bits up to the source address's prefix length only to allows DNS load balancing to continue to be used as a tie breaker. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-10 18:41:07 +00:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
net: ipv6: Add a sysctl to make optimistic addresses useful candidates Add a sysctl that causes an interface's optimistic addresses to be considered equivalent to other non-deprecated addresses for source address selection purposes. Preferred addresses will still take precedence over optimistic addresses, subject to other ranking in the source address selection algorithm. This is useful where different interfaces are connected to different networks from different ISPs (e.g., a cell network and a home wifi network). The current behaviour complies with RFC 3484/6724, and it makes sense if the host has only one interface, or has multiple interfaces on the same network (same or cooperating administrative domain(s), but not in the multiple distinct networks case. For example, if a mobile device has an IPv6 address on an LTE network and then connects to IPv6-enabled wifi, while the wifi IPv6 address is undergoing DAD, IPv6 connections will try use the wifi default route with the LTE IPv6 address, and will get stuck until they time out. Also, because optimistic nodes can receive frames, issue an RTM_NEWADDR as soon as DAD starts (with the IFA_F_OPTIMSTIC flag appropriately set). A second RTM_NEWADDR is sent if DAD completes (the address flags have changed), otherwise an RTM_DELADDR is sent. Also: add an entry in ip-sysctl.txt for optimistic_dad. Signed-off-by: Erik Kline <ek@google.com> Acked-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-28 18:11:14 +09:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
ipv6: Fix finding best source address in ipv6_dev_get_saddr(). Commit 9131f3de2 ("ipv6: Do not iterate over all interfaces when finding source address on specific interface.") did not properly update best source address available. Plus, it introduced possible NULL pointer dereference. Bug was reported by Erik Kline <ek@google.com>. Based on patch proposed by Hajime Tazaki <thehajime@gmail.com>. Fixes: 9131f3de24db4dc12199aede7d931e6703e97f3b ("ipv6: Do not iterate over all interfaces when finding source address on specific interface.") Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Acked-by: Hajime Tazaki <thehajime@gmail.com> Acked-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-13 23:28:10 +09:00
ipv6: Do not iterate over all interfaces when finding source address on specific interface. If outgoing interface is specified and the candidate address is restricted to the outgoing interface, it is enough to iterate over that given interface only. Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Acked-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-10 16:58:31 +09:00
ipv6: Fix finding best source address in ipv6_dev_get_saddr(). Commit 9131f3de2 ("ipv6: Do not iterate over all interfaces when finding source address on specific interface.") did not properly update best source address available. Plus, it introduced possible NULL pointer dereference. Bug was reported by Erik Kline <ek@google.com>. Based on patch proposed by Hajime Tazaki <thehajime@gmail.com>. Fixes: 9131f3de24db4dc12199aede7d931e6703e97f3b ("ipv6: Do not iterate over all interfaces when finding source address on specific interface.") Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Acked-by: Hajime Tazaki <thehajime@gmail.com> Acked-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-13 23:28:10 +09:00
ipv6: Do not iterate over all interfaces when finding source address on specific interface. If outgoing interface is specified and the candidate address is restricted to the outgoing interface, it is enough to iterate over that given interface only. Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Acked-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-10 16:58:31 +09:00
ipv6: Fix finding best source address in ipv6_dev_get_saddr(). Commit 9131f3de2 ("ipv6: Do not iterate over all interfaces when finding source address on specific interface.") did not properly update best source address available. Plus, it introduced possible NULL pointer dereference. Bug was reported by Erik Kline <ek@google.com>. Based on patch proposed by Hajime Tazaki <thehajime@gmail.com>. Fixes: 9131f3de24db4dc12199aede7d931e6703e97f3b ("ipv6: Do not iterate over all interfaces when finding source address on specific interface.") Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Acked-by: Hajime Tazaki <thehajime@gmail.com> Acked-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-13 23:28:10 +09:00
ipv6: Do not iterate over all interfaces when finding source address on specific interface. If outgoing interface is specified and the candidate address is restricted to the outgoing interface, it is enough to iterate over that given interface only. Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Acked-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-10 16:58:31 +09:00
ipv6: Fix finding best source address in ipv6_dev_get_saddr(). Commit 9131f3de2 ("ipv6: Do not iterate over all interfaces when finding source address on specific interface.") did not properly update best source address available. Plus, it introduced possible NULL pointer dereference. Bug was reported by Erik Kline <ek@google.com>. Based on patch proposed by Hajime Tazaki <thehajime@gmail.com>. Fixes: 9131f3de24db4dc12199aede7d931e6703e97f3b ("ipv6: Do not iterate over all interfaces when finding source address on specific interface.") Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Acked-by: Hajime Tazaki <thehajime@gmail.com> Acked-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-13 23:28:10 +09:00
ipv6: Do not iterate over all interfaces when finding source address on specific interface. If outgoing interface is specified and the candidate address is restricted to the outgoing interface, it is enough to iterate over that given interface only. Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Acked-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-10 16:58:31 +09:00
netfilter: ip6tables: add MASQUERADE target Signed-off-by: Patrick McHardy <kaber@trash.net>
2012-08-26 19:14:14 +02:00
[IPV6]: Make address arguments const. - net/ipv6/addrconf.c: ipv6_get_ifaddr(), ipv6_dev_get_saddr() - net/ipv6/mcast.c: ipv6_sock_mc_join(), ipv6_sock_mc_drop(), inet6_mc_check(), ipv6_dev_mc_inc(), __ipv6_dev_mc_dec(), ipv6_dev_mc_dec(), ipv6_chk_mcast_addr() - net/ipv6/route.c: rt6_lookup(), icmp6_dst_alloc() - net/ipv6/ip6_output.c: ip6_nd_hdr() - net/ipv6/ndisc.c: ndisc_send_ns(), ndisc_send_rs(), ndisc_send_redirect(), ndisc_get_neigh(), __ndisc_send() Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-10 15:42:10 +09:00
[IPV6]: Support Source Address Selection API (RFC5014). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25 09:37:42 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Fix finding best source address in ipv6_dev_get_saddr(). Commit 9131f3de2 ("ipv6: Do not iterate over all interfaces when finding source address on specific interface.") did not properly update best source address available. Plus, it introduced possible NULL pointer dereference. Bug was reported by Erik Kline <ek@google.com>. Based on patch proposed by Hajime Tazaki <thehajime@gmail.com>. Fixes: 9131f3de24db4dc12199aede7d931e6703e97f3b ("ipv6: Do not iterate over all interfaces when finding source address on specific interface.") Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Acked-by: Hajime Tazaki <thehajime@gmail.com> Acked-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-13 23:28:10 +09:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
ipv6: Do not iterate over all interfaces when finding source address on specific interface. If outgoing interface is specified and the candidate address is restricted to the outgoing interface, it is enough to iterate over that given interface only. Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Acked-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-10 16:58:31 +09:00
[IPV6]: RFC3484 compliant source address selection Choose more appropriate source address; e.g. - outgoing interface - non-deprecated - scope - matching label Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-08 09:38:30 -08:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
ipv6: Do not iterate over all interfaces when finding source address on specific interface. If outgoing interface is specified and the candidate address is restricted to the outgoing interface, it is enough to iterate over that given interface only. Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Acked-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-10 16:58:31 +09:00
ipv6: Fix finding best source address in ipv6_dev_get_saddr(). Commit 9131f3de2 ("ipv6: Do not iterate over all interfaces when finding source address on specific interface.") did not properly update best source address available. Plus, it introduced possible NULL pointer dereference. Bug was reported by Erik Kline <ek@google.com>. Based on patch proposed by Hajime Tazaki <thehajime@gmail.com>. Fixes: 9131f3de24db4dc12199aede7d931e6703e97f3b ("ipv6: Do not iterate over all interfaces when finding source address on specific interface.") Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Acked-by: Hajime Tazaki <thehajime@gmail.com> Acked-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-13 23:28:10 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
ipv6 netns: Address labels per namespace This pacth makes IPv6 address labels per network namespace. It keeps the global label tables, ip6addrlbl_table, but adds a 'net' member to each ip6addrlbl_entry. This new member is taken into account when matching labels. Changelog ========= * v1: Initial version * v2: * Minize the penalty when network namespaces are not configured: * the 'net' member is added only if CONFIG_NET_NS is defined. This saves space when network namespaces are not configured. * 'net' value is retrieved with the inlined function ip6addrlbl_net() that always return &init_net when CONFIG_NET_NS is not defined. * 'net' member in ip6addrlbl_entry renamed to the less generic 'lbl_net' name (helps code search). Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-05-28 14:51:24 +02:00
[IPV6]: Support Source Address Selection API (RFC5014). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25 09:37:42 +09:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
ipv6: Fix finding best source address in ipv6_dev_get_saddr(). Commit 9131f3de2 ("ipv6: Do not iterate over all interfaces when finding source address on specific interface.") did not properly update best source address available. Plus, it introduced possible NULL pointer dereference. Bug was reported by Erik Kline <ek@google.com>. Based on patch proposed by Hajime Tazaki <thehajime@gmail.com>. Fixes: 9131f3de24db4dc12199aede7d931e6703e97f3b ("ipv6: Do not iterate over all interfaces when finding source address on specific interface.") Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Acked-by: Hajime Tazaki <thehajime@gmail.com> Acked-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-13 23:28:10 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Convert addrconf_lock to RCU. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:44:24 -07:00
[IPV6]: RFC3484 compliant source address selection Choose more appropriate source address; e.g. - outgoing interface - non-deprecated - scope - matching label Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-08 09:38:30 -08:00
ipv6: Do not iterate over all interfaces when finding source address on specific interface. If outgoing interface is specified and the candidate address is restricted to the outgoing interface, it is enough to iterate over that given interface only. Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Acked-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-10 16:58:31 +09:00
ipv6: sysctl to restrict candidate source addresses Per RFC 6724, section 4, "Candidate Source Addresses": It is RECOMMENDED that the candidate source addresses be the set of unicast addresses assigned to the interface that will be used to send to the destination (the "outgoing" interface). Add a sysctl to enable this behaviour. Signed-off-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-22 16:38:25 +09:00
ipv6: Do not iterate over all interfaces when finding source address on specific interface. If outgoing interface is specified and the candidate address is restricted to the outgoing interface, it is enough to iterate over that given interface only. Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Acked-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-10 16:58:31 +09:00
ipv6: sysctl to restrict candidate source addresses Per RFC 6724, section 4, "Candidate Source Addresses": It is RECOMMENDED that the candidate source addresses be the set of unicast addresses assigned to the interface that will be used to send to the destination (the "outgoing" interface). Add a sysctl to enable this behaviour. Signed-off-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-22 16:38:25 +09:00
ipv6: Do not iterate over all interfaces when finding source address on specific interface. If outgoing interface is specified and the candidate address is restricted to the outgoing interface, it is enough to iterate over that given interface only. Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Acked-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-10 16:58:31 +09:00
ipv6: sysctl to restrict candidate source addresses Per RFC 6724, section 4, "Candidate Source Addresses": It is RECOMMENDED that the candidate source addresses be the set of unicast addresses assigned to the interface that will be used to send to the destination (the "outgoing" interface). Add a sysctl to enable this behaviour. Signed-off-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-22 16:38:25 +09:00
ipv6: Do not iterate over all interfaces when finding source address on specific interface. If outgoing interface is specified and the candidate address is restricted to the outgoing interface, it is enough to iterate over that given interface only. Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Acked-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-10 16:58:31 +09:00
ipv6: Fix finding best source address in ipv6_dev_get_saddr(). Commit 9131f3de2 ("ipv6: Do not iterate over all interfaces when finding source address on specific interface.") did not properly update best source address available. Plus, it introduced possible NULL pointer dereference. Bug was reported by Erik Kline <ek@google.com>. Based on patch proposed by Hajime Tazaki <thehajime@gmail.com>. Fixes: 9131f3de24db4dc12199aede7d931e6703e97f3b ("ipv6: Do not iterate over all interfaces when finding source address on specific interface.") Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Acked-by: Hajime Tazaki <thehajime@gmail.com> Acked-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-13 23:28:10 +09:00
ipv6: Remove unused arguments for __ipv6_dev_get_saddr(). Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-16 16:51:30 +09:00
ipv6: Do not iterate over all interfaces when finding source address on specific interface. If outgoing interface is specified and the candidate address is restricted to the outgoing interface, it is enough to iterate over that given interface only. Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Acked-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-10 16:58:31 +09:00
[IPV6]: Don't select a tentative address as a source address. A tentative address is not considered "assigned to an interface" in the traditional sense (RFC2462 Section 4). Don't try to select such an address for the source address. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:58:01 +09:00
ipv6: Remove unused arguments for __ipv6_dev_get_saddr(). Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-16 16:51:30 +09:00
[IPV6]: RFC3484 compliant source address selection Choose more appropriate source address; e.g. - outgoing interface - non-deprecated - scope - matching label Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-08 09:38:30 -08:00
[IPV6] ADDRCONF: Convert addrconf_lock to RCU. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:44:24 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Fix finding best source address in ipv6_dev_get_saddr(). Commit 9131f3de2 ("ipv6: Do not iterate over all interfaces when finding source address on specific interface.") did not properly update best source address available. Plus, it introduced possible NULL pointer dereference. Bug was reported by Erik Kline <ek@google.com>. Based on patch proposed by Hajime Tazaki <thehajime@gmail.com>. Fixes: 9131f3de24db4dc12199aede7d931e6703e97f3b ("ipv6: Do not iterate over all interfaces when finding source address on specific interface.") Signed-off-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Acked-by: Hajime Tazaki <thehajime@gmail.com> Acked-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-13 23:28:10 +09:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
[IPV6]: RFC3484 compliant source address selection Choose more appropriate source address; e.g. - outgoing interface - non-deprecated - scope - matching label Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-08 09:38:30 -08:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
net: remove ipv6_addr_copy() C assignment can handle struct in6_addr copying. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-21 03:39:03 +00:00
[IPV6] ADDRCONF: Clean-up ipv6_dev_get_saddr(). old: | text data bss dec hex filename | 28599 1416 96 30111 759f net/ipv6/addrconf.o new: | text data bss dec hex filename | 28007 1416 96 29519 734f net/ipv6/addrconf.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-02 10:48:21 +09:00
[IPV6]: RFC3484 compliant source address selection Choose more appropriate source address; e.g. - outgoing interface - non-deprecated - scope - matching label Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-08 09:38:30 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Convert ipv6_get_saddr() to ipv6_dev_get_saddr(). Since most users of ipv6_get_saddr() pass non-NULL as dst argument, use ipv6_dev_get_saddr() directly. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-03 21:44:34 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6,mcast: always hold idev->lock before mca_lock dingtianhong reported the following deadlock detected by lockdep: ====================================================== [ INFO: possible circular locking dependency detected ] 3.4.24.05-0.1-default #1 Not tainted ------------------------------------------------------- ksoftirqd/0/3 is trying to acquire lock: (&ndev->lock){+.+...}, at: [<ffffffff8147f804>] ipv6_get_lladdr+0x74/0x120 but task is already holding lock: (&mc->mca_lock){+.+...}, at: [<ffffffff8149d130>] mld_send_report+0x40/0x150 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&mc->mca_lock){+.+...}: [<ffffffff810a8027>] validate_chain+0x637/0x730 [<ffffffff810a8417>] __lock_acquire+0x2f7/0x500 [<ffffffff810a8734>] lock_acquire+0x114/0x150 [<ffffffff814f691a>] rt_spin_lock+0x4a/0x60 [<ffffffff8149e4bb>] igmp6_group_added+0x3b/0x120 [<ffffffff8149e5d8>] ipv6_mc_up+0x38/0x60 [<ffffffff81480a4d>] ipv6_find_idev+0x3d/0x80 [<ffffffff81483175>] addrconf_notify+0x3d5/0x4b0 [<ffffffff814fae3f>] notifier_call_chain+0x3f/0x80 [<ffffffff81073471>] raw_notifier_call_chain+0x11/0x20 [<ffffffff813d8722>] call_netdevice_notifiers+0x32/0x60 [<ffffffff813d92d4>] __dev_notify_flags+0x34/0x80 [<ffffffff813d9360>] dev_change_flags+0x40/0x70 [<ffffffff813ea627>] do_setlink+0x237/0x8a0 [<ffffffff813ebb6c>] rtnl_newlink+0x3ec/0x600 [<ffffffff813eb4d0>] rtnetlink_rcv_msg+0x160/0x310 [<ffffffff814040b9>] netlink_rcv_skb+0x89/0xb0 [<ffffffff813eb357>] rtnetlink_rcv+0x27/0x40 [<ffffffff81403e20>] netlink_unicast+0x140/0x180 [<ffffffff81404a9e>] netlink_sendmsg+0x33e/0x380 [<ffffffff813c4252>] sock_sendmsg+0x112/0x130 [<ffffffff813c537e>] __sys_sendmsg+0x44e/0x460 [<ffffffff813c5544>] sys_sendmsg+0x44/0x70 [<ffffffff814feab9>] system_call_fastpath+0x16/0x1b -> #0 (&ndev->lock){+.+...}: [<ffffffff810a798e>] check_prev_add+0x3de/0x440 [<ffffffff810a8027>] validate_chain+0x637/0x730 [<ffffffff810a8417>] __lock_acquire+0x2f7/0x500 [<ffffffff810a8734>] lock_acquire+0x114/0x150 [<ffffffff814f6c82>] rt_read_lock+0x42/0x60 [<ffffffff8147f804>] ipv6_get_lladdr+0x74/0x120 [<ffffffff8149b036>] mld_newpack+0xb6/0x160 [<ffffffff8149b18b>] add_grhead+0xab/0xc0 [<ffffffff8149d03b>] add_grec+0x3ab/0x460 [<ffffffff8149d14a>] mld_send_report+0x5a/0x150 [<ffffffff8149f99e>] igmp6_timer_handler+0x4e/0xb0 [<ffffffff8105705a>] call_timer_fn+0xca/0x1d0 [<ffffffff81057b9f>] run_timer_softirq+0x1df/0x2e0 [<ffffffff8104e8c7>] handle_pending_softirqs+0xf7/0x1f0 [<ffffffff8104ea3b>] __do_softirq_common+0x7b/0xf0 [<ffffffff8104f07f>] __thread_do_softirq+0x1af/0x210 [<ffffffff8104f1c1>] run_ksoftirqd+0xe1/0x1f0 [<ffffffff8106c7de>] kthread+0xae/0xc0 [<ffffffff814fff74>] kernel_thread_helper+0x4/0x10 actually we can just hold idev->lock before taking pmc->mca_lock, and avoid taking idev->lock again when iterating idev->addr_list, since the upper callers of mld_newpack() already take read_lock_bh(&idev->lock). Reported-by: dingtianhong <dingtianhong@huawei.com> Cc: dingtianhong <dingtianhong@huawei.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David S. Miller <davem@davemloft.net> Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Tested-by: Ding Tianhong <dingtianhong@huawei.com> Tested-by: Chen Weilong <chenweilong@huawei.com> Signed-off-by: Cong Wang <amwang@redhat.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-29 21:30:49 +08:00
ipv6 addrconf: extend ifa_flags to u32 There is no more space in u8 ifa_flags. So do what davem suffested and add another netlink attr called IFA_FLAGS for carry more flags. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:21 +01:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
ipv6: optimize link local address search ipv6_link_dev_addr sorts newly added addresses by scope in ifp->addr_list. Smaller scope addresses are added to the tail of the list. Use this fact to iterate in reverse over addr_list and break out as soon as a higher scoped one showes up, so we can spare some cycles on machines with lot's of addresses. The ordering of the addresses is not relevant and we are more likely to get the eui64 generated address with this change anyway. Suggested-by: Brian Haley <brian.haley@hp.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-19 21:58:19 +01:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
ipv6 addrconf: extend ifa_flags to u32 There is no more space in u8 ifa_flags. So do what davem suffested and add another netlink attr called IFA_FLAGS for carry more flags. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:21 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Convert addrconf_lock to RCU. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:44:24 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Convert addrconf_lock to RCU. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:44:24 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: convert idev_list to list macros Convert to list macro's for the list of addresses per interface in IPv6. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:13 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
inet: constify ip headers and in6_addr Add const qualifiers to structs iphdr, ipv6hdr and in6_addr pointers where possible, to make code intention more obvious. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-22 04:53:02 +00:00
netfilter: add nf_ipv6_ops hook to fix xt_addrtype with IPv6 Quoting https://bugzilla.netfilter.org/show_bug.cgi?id=812: [ ip6tables -m addrtype ] When I tried to use in the nat/PREROUTING it messes up the routing cache even if the rule didn't matched at all. [..] If I remove the --limit-iface-in from the non-working scenario, so just use the -m addrtype --dst-type LOCAL it works! This happens when LOCAL type matching is requested with --limit-iface-in, and the default ipv6 route is via the interface the packet we test arrived on. Because xt_addrtype uses ip6_route_output, the ipv6 routing implementation creates an unwanted cached entry, and the packet won't make it to the real/expected destination. Silently ignoring --limit-iface-in makes the routing work but it breaks rule matching (--dst-type LOCAL with limit-iface-in is supposed to only match if the dst address is configured on the incoming interface; without --limit-iface-in it will match if the address is reachable via lo). The test should call ipv6_chk_addr() instead. However, this would add a link-time dependency on ipv6. There are two possible solutions: 1) Revert the commit that moved ipt_addrtype to xt_addrtype, and put ipv6 specific code into ip6t_addrtype. 2) add new "nf_ipv6_ops" struct to register pointers to ipv6 functions. While the former might seem preferable, Pablo pointed out that there are more xt modules with link-time dependeny issues regarding ipv6, so lets go for 2). Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-05-17 03:56:10 +00:00
net: ipv6: allow explicitly choosing optimistic addresses RFC 4429 ("Optimistic DAD") states that optimistic addresses should be treated as deprecated addresses. From section 2.1: Unless noted otherwise, components of the IPv6 protocol stack should treat addresses in the Optimistic state equivalently to those in the Deprecated state, indicating that the address is available for use but should not be used if another suitable address is available. Optimistic addresses are indeed avoided when other addresses are available (i.e. at source address selection time), but they have not heretofore been available for things like explicit bind() and sendmsg() with struct in6_pktinfo, etc. This change makes optimistic addresses treated more like deprecated addresses than tentative ones. Signed-off-by: Erik Kline <ek@google.com> Acked-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-04 20:01:23 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: fix the bug of address check The duplicate address check code got broken in the conversion to hlist (2.6.35). The earlier patch did not fix the case where two addresses match same hash value. Use two exit paths, rather than depending on state of loop variables (from macro). Based on earlier fix by Shan Wei. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Reviewed-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-17 22:27:12 -07:00
ipv6: add ipv6_addr_hash() helper Introduce ipv6_addr_hash() helper doing a XOR on all bits of an IPv6 address, with an optimized x86_64 version. Use it in flow dissector, as suggested by Andrew McGregor, to reduce hash collision probabilities in fq_codel (and other users of flow dissector) Use it in ip6_tunnel.c and use more bit shuffling, as suggested by David Laight, as existing hash was ignoring most of them. Use it in sunrpc and use more bit shuffling, using hash_32(). Use it in net/ipv6/addrconf.c, using hash_32() as well. As a cleanup, use it in net/ipv4/tcp_metrics.c Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Andrew McGregor <andrewmcgr@gmail.com> Cc: Dave Taht <dave.taht@gmail.com> Cc: Tom Herbert <therbert@google.com> Cc: David Laight <David.Laight@ACULAB.COM> Cc: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-18 08:11:12 +00:00
net: ipv6: allow explicitly choosing optimistic addresses RFC 4429 ("Optimistic DAD") states that optimistic addresses should be treated as deprecated addresses. From section 2.1: Unless noted otherwise, components of the IPv6 protocol stack should treat addresses in the Optimistic state equivalently to those in the Deprecated state, indicating that the address is available for use but should not be used if another suitable address is available. Optimistic addresses are indeed avoided when other addresses are available (i.e. at source address selection time), but they have not heretofore been available for things like explicit bind() and sendmsg() with struct in6_pktinfo, etc. This change makes optimistic addresses treated more like deprecated addresses than tentative ones. Signed-off-by: Erik Kline <ek@google.com> Acked-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-04 20:01:23 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: convert addrconf hash list to RCU Convert from reader/writer lock to RCU and spinlock for addrconf hash list. Adds an additional helper macro for hlist_for_each_entry_continue_rcu to handle the continue case. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:11 +00:00
hlist: drop the node parameter from iterators I'm not sure why, but the hlist for each entry iterators were conceived list_for_each_entry(pos, head, member) The hlist ones were greedy and wanted an extra parameter: hlist_for_each_entry(tpos, pos, head, member) Why did they need an extra pos parameter? I'm not quite sure. Not only they don't really need it, it also prevents the iterator from looking exactly like the list iterator, which is unfortunate. Besides the semantic patch, there was some manual work required: - Fix up the actual hlist iterators in linux/list.h - Fix up the declaration of other iterators based on the hlist ones. - A very small amount of places were using the 'node' parameter, this was modified to use 'obj->member' instead. - Coccinelle didn't handle the hlist_for_each_entry_safe iterator properly, so those had to be fixed up manually. The semantic patch which is mostly the work of Peter Senna Tschudin is here: @@ iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host; type T; expression a,c,d,e; identifier b; statement S; @@ -T b; <+... when != b ( hlist_for_each_entry(a, - b, c, d) S | hlist_for_each_entry_continue(a, - b, c) S | hlist_for_each_entry_from(a, - b, c) S | hlist_for_each_entry_rcu(a, - b, c, d) S | hlist_for_each_entry_rcu_bh(a, - b, c, d) S | hlist_for_each_entry_continue_rcu_bh(a, - b, c) S | for_each_busy_worker(a, c, - b, d) S | ax25_uid_for_each(a, - b, c) S | ax25_for_each(a, - b, c) S | inet_bind_bucket_for_each(a, - b, c) S | sctp_for_each_hentry(a, - b, c) S | sk_for_each(a, - b, c) S | sk_for_each_rcu(a, - b, c) S | sk_for_each_from -(a, b) +(a) S + sk_for_each_from(a) S | sk_for_each_safe(a, - b, c, d) S | sk_for_each_bound(a, - b, c) S | hlist_for_each_entry_safe(a, - b, c, d, e) S | hlist_for_each_entry_continue_rcu(a, - b, c) S | nr_neigh_for_each(a, - b, c) S | nr_neigh_for_each_safe(a, - b, c, d) S | nr_node_for_each(a, - b, c) S | nr_node_for_each_safe(a, - b, c, d) S | - for_each_gfn_sp(a, c, d, b) S + for_each_gfn_sp(a, c, d) S | - for_each_gfn_indirect_valid_sp(a, c, d, b) S + for_each_gfn_indirect_valid_sp(a, c, d) S | for_each_host(a, - b, c) S | for_each_host_safe(a, - b, c, d) S | for_each_mesh_entry(a, - b, c, d) S ) ...+> [akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c] [akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c] [akpm@linux-foundation.org: checkpatch fixes] [akpm@linux-foundation.org: fix warnings] [akpm@linux-foudnation.org: redo intrusive kvm changes] Tested-by: Peter Senna Tschudin <peter.senna@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Gleb Natapov <gleb@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-27 17:06:00 -08:00
[NET] NETNS: Omit namespace comparision without CONFIG_NET_NS. Introduce an inline net_eq() to compare two namespaces. Without CONFIG_NET_NS, since no namespace other than &init_net exists, it is always 1. We do not need to convert 1) inline vs inline and 2) inline vs &init_net comparisons. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-26 03:57:35 +09:00
[NETNS][IPV6]: inet6_addr - check ipv6 address per namespace When a new address is added, we must check if the new address does not already exists. This patch makes this check to be aware of a network namespace, so the check will look if the address already exists for the specified network namespace. While the addresses are browsed, the addresses which do not belong to the namespace are discarded. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 22:43:18 -08:00
net: ipv6: allow explicitly choosing optimistic addresses RFC 4429 ("Optimistic DAD") states that optimistic addresses should be treated as deprecated addresses. From section 2.1: Unless noted otherwise, components of the IPv6 protocol stack should treat addresses in the Optimistic state equivalently to those in the Deprecated state, indicating that the address is available for use but should not be used if another suitable address is available. Optimistic addresses are indeed avoided when other addresses are available (i.e. at source address selection time), but they have not heretofore been available for things like explicit bind() and sendmsg() with struct in6_pktinfo, etc. This change makes optimistic addresses treated more like deprecated addresses than tentative ones. Signed-off-by: Erik Kline <ek@google.com> Acked-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-04 20:01:23 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: ipv6: allow explicitly choosing optimistic addresses RFC 4429 ("Optimistic DAD") states that optimistic addresses should be treated as deprecated addresses. From section 2.1: Unless noted otherwise, components of the IPv6 protocol stack should treat addresses in the Optimistic state equivalently to those in the Deprecated state, indicating that the address is available for use but should not be used if another suitable address is available. Optimistic addresses are indeed avoided when other addresses are available (i.e. at source address selection time), but they have not heretofore been available for things like explicit bind() and sendmsg() with struct in6_pktinfo, etc. This change makes optimistic addresses treated more like deprecated addresses than tentative ones. Signed-off-by: Erik Kline <ek@google.com> Acked-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-04 20:01:23 +09:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
ipv6: fix the bug of address check The duplicate address check code got broken in the conversion to hlist (2.6.35). The earlier patch did not fix the case where two addresses match same hash value. Use two exit paths, rather than depending on state of loop variables (from macro). Based on earlier fix by Shan Wei. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Reviewed-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-17 22:27:12 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: convert addrconf hash list to RCU Convert from reader/writer lock to RCU and spinlock for addrconf hash list. Adds an additional helper macro for hlist_for_each_entry_continue_rcu to handle the continue case. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:11 +00:00
ipv6: fix the bug of address check The duplicate address check code got broken in the conversion to hlist (2.6.35). The earlier patch did not fix the case where two addresses match same hash value. Use two exit paths, rather than depending on state of loop variables (from macro). Based on earlier fix by Shan Wei. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Reviewed-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-17 22:27:12 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: ipv6: allow explicitly choosing optimistic addresses RFC 4429 ("Optimistic DAD") states that optimistic addresses should be treated as deprecated addresses. From section 2.1: Unless noted otherwise, components of the IPv6 protocol stack should treat addresses in the Optimistic state equivalently to those in the Deprecated state, indicating that the address is available for use but should not be used if another suitable address is available. Optimistic addresses are indeed avoided when other addresses are available (i.e. at source address selection time), but they have not heretofore been available for things like explicit bind() and sendmsg() with struct in6_pktinfo, etc. This change makes optimistic addresses treated more like deprecated addresses than tentative ones. Signed-off-by: Erik Kline <ek@google.com> Acked-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-04 20:01:23 +09:00
[IPV6]: Decentralize EXPORT_SYMBOLs. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2007-02-22 22:05:40 +09:00
ipv6: Fix bug in ipv6_chk_same_addr(). hlist_for_each_entry(p...) will not necessarily initialize 'p' to anything if the hlist is empty. GCC notices this and emits a warning. Just return true explicitly when we hit a match, and return false is we fall out of the loop without one. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:18:00 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: add ipv6_addr_hash() helper Introduce ipv6_addr_hash() helper doing a XOR on all bits of an IPv6 address, with an optimized x86_64 version. Use it in flow dissector, as suggested by Andrew McGregor, to reduce hash collision probabilities in fq_codel (and other users of flow dissector) Use it in ip6_tunnel.c and use more bit shuffling, as suggested by David Laight, as existing hash was ignoring most of them. Use it in sunrpc and use more bit shuffling, using hash_32(). Use it in net/ipv6/addrconf.c, using hash_32() as well. As a cleanup, use it in net/ipv4/tcp_metrics.c Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Andrew McGregor <andrewmcgr@gmail.com> Cc: Dave Taht <dave.taht@gmail.com> Cc: Tom Herbert <therbert@google.com> Cc: David Laight <David.Laight@ACULAB.COM> Cc: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-18 08:11:12 +00:00
ipv6: convert addrconf list to hlist Using hash list macros, simplifies code and helps later RCU. This patch includes some initialization that is not strictly necessary, since an empty hlist node/list is all zero; and list is in BSS and node is allocated with kzalloc. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:10 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
hlist: drop the node parameter from iterators I'm not sure why, but the hlist for each entry iterators were conceived list_for_each_entry(pos, head, member) The hlist ones were greedy and wanted an extra parameter: hlist_for_each_entry(tpos, pos, head, member) Why did they need an extra pos parameter? I'm not quite sure. Not only they don't really need it, it also prevents the iterator from looking exactly like the list iterator, which is unfortunate. Besides the semantic patch, there was some manual work required: - Fix up the actual hlist iterators in linux/list.h - Fix up the declaration of other iterators based on the hlist ones. - A very small amount of places were using the 'node' parameter, this was modified to use 'obj->member' instead. - Coccinelle didn't handle the hlist_for_each_entry_safe iterator properly, so those had to be fixed up manually. The semantic patch which is mostly the work of Peter Senna Tschudin is here: @@ iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host; type T; expression a,c,d,e; identifier b; statement S; @@ -T b; <+... when != b ( hlist_for_each_entry(a, - b, c, d) S | hlist_for_each_entry_continue(a, - b, c) S | hlist_for_each_entry_from(a, - b, c) S | hlist_for_each_entry_rcu(a, - b, c, d) S | hlist_for_each_entry_rcu_bh(a, - b, c, d) S | hlist_for_each_entry_continue_rcu_bh(a, - b, c) S | for_each_busy_worker(a, c, - b, d) S | ax25_uid_for_each(a, - b, c) S | ax25_for_each(a, - b, c) S | inet_bind_bucket_for_each(a, - b, c) S | sctp_for_each_hentry(a, - b, c) S | sk_for_each(a, - b, c) S | sk_for_each_rcu(a, - b, c) S | sk_for_each_from -(a, b) +(a) S + sk_for_each_from(a) S | sk_for_each_safe(a, - b, c, d) S | sk_for_each_bound(a, - b, c) S | hlist_for_each_entry_safe(a, - b, c, d, e) S | hlist_for_each_entry_continue_rcu(a, - b, c) S | nr_neigh_for_each(a, - b, c) S | nr_neigh_for_each_safe(a, - b, c, d) S | nr_node_for_each(a, - b, c) S | nr_node_for_each_safe(a, - b, c, d) S | - for_each_gfn_sp(a, c, d, b) S + for_each_gfn_sp(a, c, d) S | - for_each_gfn_indirect_valid_sp(a, c, d, b) S + for_each_gfn_indirect_valid_sp(a, c, d) S | for_each_host(a, - b, c) S | for_each_host_safe(a, - b, c, d) S | for_each_mesh_entry(a, - b, c, d) S ) ...+> [akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c] [akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c] [akpm@linux-foundation.org: checkpatch fixes] [akpm@linux-foundation.org: fix warnings] [akpm@linux-foudnation.org: redo intrusive kvm changes] Tested-by: Peter Senna Tschudin <peter.senna@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Gleb Natapov <gleb@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-27 17:06:00 -08:00
[NET] NETNS: Omit namespace comparision without CONFIG_NET_NS. Introduce an inline net_eq() to compare two namespaces. Without CONFIG_NET_NS, since no namespace other than &init_net exists, it is always 1. We do not need to convert 1) inline vs inline and 2) inline vs &init_net comparisons. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-26 03:57:35 +09:00
[NETNS][IPV6]: inet6_addr - ipv6_chk_same_addr namespace aware This patch makes ipv6_chk_same_addr function to be aware of the network namespace. The addresses not belonging to the network namespace are discarded. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 22:43:42 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
ipv6: Fix bug in ipv6_chk_same_addr(). hlist_for_each_entry(p...) will not necessarily initialize 'p' to anything if the hlist is empty. GCC notices this and emits a warning. Just return true explicitly when we hit a match, and return false is we fall out of the loop without one. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:18:00 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Fix bug in ipv6_chk_same_addr(). hlist_for_each_entry(p...) will not necessarily initialize 'p' to anything if the hlist is empty. GCC notices this and emits a warning. Just return true explicitly when we hit a match, and return false is we fall out of the loop without one. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:18:00 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6 NAT: Do not drop DNATed 6to4/6rd packets When a router is doing DNAT for 6to4/6rd packets the latest anti-spoofing commit 218774dc ("ipv6: add anti-spoofing checks for 6to4 and 6rd") will drop them because the IPv6 address embedded does not match the IPv4 destination. This patch will allow them to pass by testing if we have an address that matches on 6to4/6rd interface. I have been hit by this problem using Fedora and IPV6TO4_IPV4ADDR. Also, log the dropped packets (with rate limit). Signed-off-by: Catalin(ux) M. BOIE <catab@embedromix.ro> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-23 23:04:19 +03:00
inet: constify ip headers and in6_addr Add const qualifiers to structs iphdr, ipv6hdr and in6_addr pointers where possible, to make code intention more obvious. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-22 04:53:02 +00:00
[IPV6]: Unify ip6_onlink() and ipip6_onlink(). Both are identical, let's create ipv6_chk_prefix() and use it in both places.
2008-03-15 22:54:23 -04:00
ipv6: convert idev_list to list macros Convert to list macro's for the list of addresses per interface in IPv6. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:13 +00:00
[IPV6]: Unify ip6_onlink() and ipip6_onlink(). Both are identical, let's create ipv6_chk_prefix() and use it in both places.
2008-03-15 22:54:23 -04:00
[IPV6]: Make address arguments const. - net/ipv6/addrconf.c: ipv6_get_ifaddr(), ipv6_dev_get_saddr() - net/ipv6/mcast.c: ipv6_sock_mc_join(), ipv6_sock_mc_drop(), inet6_mc_check(), ipv6_dev_mc_inc(), __ipv6_dev_mc_dec(), ipv6_dev_mc_dec(), ipv6_chk_mcast_addr() - net/ipv6/route.c: rt6_lookup(), icmp6_dst_alloc() - net/ipv6/ip6_output.c: ip6_nd_hdr() - net/ipv6/ndisc.c: ndisc_send_ns(), ndisc_send_rs(), ndisc_send_redirect(), ndisc_get_neigh(), __ndisc_send() Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-10 15:42:10 +09:00
[NETNS][IPV6]: inet6_addr - ipv6_get_ifaddr namespace aware The inet6_addr_lst is browsed taking into account the network namespace specified as parameter. If an address does not belong to the specified namespace, it is ignored. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 22:44:09 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Fix result generation in ipv6_get_ifaddr(). Finishing naturally from hlist_for_each_entry(x, ...) does not result in 'x' being NULL. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-25 21:39:21 -07:00
ipv6: add ipv6_addr_hash() helper Introduce ipv6_addr_hash() helper doing a XOR on all bits of an IPv6 address, with an optimized x86_64 version. Use it in flow dissector, as suggested by Andrew McGregor, to reduce hash collision probabilities in fq_codel (and other users of flow dissector) Use it in ip6_tunnel.c and use more bit shuffling, as suggested by David Laight, as existing hash was ignoring most of them. Use it in sunrpc and use more bit shuffling, using hash_32(). Use it in net/ipv6/addrconf.c, using hash_32() as well. As a cleanup, use it in net/ipv4/tcp_metrics.c Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Andrew McGregor <andrewmcgr@gmail.com> Cc: Dave Taht <dave.taht@gmail.com> Cc: Tom Herbert <therbert@google.com> Cc: David Laight <David.Laight@ACULAB.COM> Cc: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-18 08:11:12 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: convert addrconf hash list to RCU Convert from reader/writer lock to RCU and spinlock for addrconf hash list. Adds an additional helper macro for hlist_for_each_entry_continue_rcu to handle the continue case. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:11 +00:00
hlist: drop the node parameter from iterators I'm not sure why, but the hlist for each entry iterators were conceived list_for_each_entry(pos, head, member) The hlist ones were greedy and wanted an extra parameter: hlist_for_each_entry(tpos, pos, head, member) Why did they need an extra pos parameter? I'm not quite sure. Not only they don't really need it, it also prevents the iterator from looking exactly like the list iterator, which is unfortunate. Besides the semantic patch, there was some manual work required: - Fix up the actual hlist iterators in linux/list.h - Fix up the declaration of other iterators based on the hlist ones. - A very small amount of places were using the 'node' parameter, this was modified to use 'obj->member' instead. - Coccinelle didn't handle the hlist_for_each_entry_safe iterator properly, so those had to be fixed up manually. The semantic patch which is mostly the work of Peter Senna Tschudin is here: @@ iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host; type T; expression a,c,d,e; identifier b; statement S; @@ -T b; <+... when != b ( hlist_for_each_entry(a, - b, c, d) S | hlist_for_each_entry_continue(a, - b, c) S | hlist_for_each_entry_from(a, - b, c) S | hlist_for_each_entry_rcu(a, - b, c, d) S | hlist_for_each_entry_rcu_bh(a, - b, c, d) S | hlist_for_each_entry_continue_rcu_bh(a, - b, c) S | for_each_busy_worker(a, c, - b, d) S | ax25_uid_for_each(a, - b, c) S | ax25_for_each(a, - b, c) S | inet_bind_bucket_for_each(a, - b, c) S | sctp_for_each_hentry(a, - b, c) S | sk_for_each(a, - b, c) S | sk_for_each_rcu(a, - b, c) S | sk_for_each_from -(a, b) +(a) S + sk_for_each_from(a) S | sk_for_each_safe(a, - b, c, d) S | sk_for_each_bound(a, - b, c) S | hlist_for_each_entry_safe(a, - b, c, d, e) S | hlist_for_each_entry_continue_rcu(a, - b, c) S | nr_neigh_for_each(a, - b, c) S | nr_neigh_for_each_safe(a, - b, c, d) S | nr_node_for_each(a, - b, c) S | nr_node_for_each_safe(a, - b, c, d) S | - for_each_gfn_sp(a, c, d, b) S + for_each_gfn_sp(a, c, d) S | - for_each_gfn_indirect_valid_sp(a, c, d, b) S + for_each_gfn_indirect_valid_sp(a, c, d) S | for_each_host(a, - b, c) S | for_each_host_safe(a, - b, c, d) S | for_each_mesh_entry(a, - b, c, d) S ) ...+> [akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c] [akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c] [akpm@linux-foundation.org: checkpatch fixes] [akpm@linux-foundation.org: fix warnings] [akpm@linux-foudnation.org: redo intrusive kvm changes] Tested-by: Peter Senna Tschudin <peter.senna@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Gleb Natapov <gleb@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-27 17:06:00 -08:00
[NET] NETNS: Omit namespace comparision without CONFIG_NET_NS. Introduce an inline net_eq() to compare two namespaces. Without CONFIG_NET_NS, since no namespace other than &init_net exists, it is always 1. We do not need to convert 1) inline vs inline and 2) inline vs &init_net comparisons. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-26 03:57:35 +09:00
[NETNS][IPV6]: inet6_addr - ipv6_get_ifaddr namespace aware The inet6_addr_lst is browsed taking into account the network namespace specified as parameter. If an address does not belong to the specified namespace, it is ignored. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 22:44:09 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Fix result generation in ipv6_get_ifaddr(). Finishing naturally from hlist_for_each_entry(x, ...) does not result in 'x' being NULL. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-25 21:39:21 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: convert addrconf hash list to RCU Convert from reader/writer lock to RCU and spinlock for addrconf hash list. Adds an additional helper macro for hlist_for_each_entry_continue_rcu to handle the continue case. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:11 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Fix result generation in ipv6_get_ifaddr(). Finishing naturally from hlist_for_each_entry(x, ...) does not result in 'x' being NULL. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-25 21:39:21 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Add IFA_F_DADFAILED flag Add IFA_F_DADFAILED flag to denote an IPv6 address that has failed Duplicate Address Detection, that way tools like /sbin/ip can be more informative. 3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000 inet6 2001:db8::1/64 scope global tentative dadfailed valid_lft forever preferred_lft forever Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-09 14:41:32 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Add IFA_F_DADFAILED flag Add IFA_F_DADFAILED flag to denote an IPv6 address that has failed Duplicate Address Detection, that way tools like /sbin/ip can be more informative. 3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000 inet6 2001:db8::1/64 scope global tentative dadfailed valid_lft forever preferred_lft forever Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-09 14:41:32 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Send netlink notification when DAD fails If we are managing IPv6 addresses using DHCP, it would be nice for user-space to be notified if an address configured through DHCP fails DAD. Otherwise user-space would have to poll to see whether DAD succeeds. This patch uses the existing notification mechanism and simply hooks it into the DAD failure code path. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-13 12:23:29 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Use POSTDAD state This patch makes use of the new POSTDAD state. This prevents a race between DAD completion and failure. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-18 15:55:27 -07:00
ipv6: collapse state_lock and lock Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:03 +01:00
ipv6: Use POSTDAD state This patch makes use of the new POSTDAD state. This prevents a race between DAD completion and failure. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-18 15:55:27 -07:00
ipv6: collapse state_lock and lock Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:03 +01:00
ipv6: Use POSTDAD state This patch makes use of the new POSTDAD state. This prevents a race between DAD completion and failure. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-18 15:55:27 -07:00
[IPV6]: Defer IPv6 device initialization until the link becomes ready. NETDEV_UP might be sent even if the link attached to the interface was not ready. DAD does not make sense in such case, so we won't do so. After interface Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:24 +09:00
ipv6: do retries on stable privacy addresses If a DAD conflict is detected, we want to retry privacy stable address generation up to idgen_retries (= 3) times with a delay of idgen_delay (= 1 second). Add the logic to addrconf_dad_failure. By design, we don't clean up dad failed permanent addresses. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:04 +01:00
ipv6 addrconf: add accept_dad sysctl to control DAD operation. - If 0, disable DAD. - If 1, perform DAD (default). - If >1, perform DAD and disable IPv6 operation if DAD for MAC-based link-local address has been failed (RFC4862 5.4.5). We do not follow RFC4862 by default. Refer to the netdev thread entitled "Linux IPv6 DAD not full conform to RFC 4862 ?" http://www.spinics.net/lists/netdev/msg52027.html Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-28 14:18:38 +09:00
ipv6: introduce idgen_delay and idgen_retries knobs This is specified by RFC 7217. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:05 +01:00
ipv6: Fix incorrect disable_ipv6 behavior Fix the behavior of allowing both sysctl and addrconf_dad_failure() to set the disable_ipv6 parameter without any bad side-effects. If DAD fails and accept_dad > 1, we will still set disable_ipv6=1, but then instead of allowing an RA to add an address then immediately fail DAD, we simply don't allow the address to be added in the first place. This also lets the user set this flag and disable all IPv6 addresses on the interface, or on the entire system. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-18 18:22:48 -07:00
ipv6: fix refcnt problem related to POSTDAD state After running this bonding setup script modprobe bonding miimon=100 mode=0 max_bonds=1 ifconfig bond0 10.1.1.1/16 ifenslave bond0 eth1 ifenslave bond0 eth3 on s390 with qeth-driven slaves, modprobe -r fails with this message unregister_netdevice: waiting for bond0 to become free. Usage count = 1 due to twice detection of duplicate address. Problem is caused by a missing decrease of ifp->refcnt in addrconf_dad_failure. An extra call of in6_ifa_put(ifp) solves it. Problem has been introduced with commit f2344a131bccdbfc5338e17fa71a807dee7944fa. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Cc: David S. Miller <davem@davemloft.net> Cc: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-24 23:06:43 +00:00
ipv6: Use POSTDAD state This patch makes use of the new POSTDAD state. This prevents a race between DAD completion and failure. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-18 15:55:27 -07:00
ipv6: fix refcnt problem related to POSTDAD state After running this bonding setup script modprobe bonding miimon=100 mode=0 max_bonds=1 ifconfig bond0 10.1.1.1/16 ifenslave bond0 eth1 ifenslave bond0 eth3 on s390 with qeth-driven slaves, modprobe -r fails with this message unregister_netdevice: waiting for bond0 to become free. Usage count = 1 due to twice detection of duplicate address. Problem is caused by a missing decrease of ifp->refcnt in addrconf_dad_failure. An extra call of in6_ifa_put(ifp) solves it. Problem has been introduced with commit f2344a131bccdbfc5338e17fa71a807dee7944fa. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Cc: David S. Miller <davem@davemloft.net> Cc: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-24 23:06:43 +00:00
ipv6: Use POSTDAD state This patch makes use of the new POSTDAD state. This prevents a race between DAD completion and failure. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-18 15:55:27 -07:00
net: Convert net_ratelimit uses to net_<level>_ratelimited Standardize the net core ratelimited logging functions. Coalesce formats, align arguments. Change a printk then vprintk sequence to use printf extension %pV. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-13 21:56:26 +00:00
ipv6: Fix incorrect disable_ipv6 behavior Fix the behavior of allowing both sysctl and addrconf_dad_failure() to set the disable_ipv6 parameter without any bad side-effects. If DAD fails and accept_dad > 1, we will still set disable_ipv6=1, but then instead of allowing an RA to add an address then immediately fail DAD, we simply don't allow the address to be added in the first place. This also lets the user set this flag and disable all IPv6 addresses on the interface, or on the entire system. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-18 18:22:48 -07:00
ipv6: do retries on stable privacy addresses If a DAD conflict is detected, we want to retry privacy stable address generation up to idgen_retries (= 3) times with a delay of idgen_delay (= 1 second). Add the logic to addrconf_dad_failure. By design, we don't clean up dad failed permanent addresses. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:04 +01:00
ipv6 addrconf: add accept_dad sysctl to control DAD operation. - If 0, disable DAD. - If 1, perform DAD (default). - If >1, perform DAD and disable IPv6 operation if DAD for MAC-based link-local address has been failed (RFC4862 5.4.5). We do not follow RFC4862 by default. Refer to the netdev thread entitled "Linux IPv6 DAD not full conform to RFC 4862 ?" http://www.spinics.net/lists/netdev/msg52027.html Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-28 14:18:38 +09:00
ipv6: do retries on stable privacy addresses If a DAD conflict is detected, we want to retry privacy stable address generation up to idgen_retries (= 3) times with a delay of idgen_delay (= 1 second). Add the logic to addrconf_dad_failure. By design, we don't clean up dad failed permanent addresses. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:04 +01:00
ipv6: introduce idgen_delay and idgen_retries knobs This is specified by RFC 7217. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:05 +01:00
ipv6: do retries on stable privacy addresses If a DAD conflict is detected, we want to retry privacy stable address generation up to idgen_retries (= 3) times with a delay of idgen_delay (= 1 second). Add the logic to addrconf_dad_failure. By design, we don't clean up dad failed permanent addresses. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:04 +01:00
ipv6: introduce idgen_delay and idgen_retries knobs This is specified by RFC 7217. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:05 +01:00
ipv6: do retries on stable privacy addresses If a DAD conflict is detected, we want to retry privacy stable address generation up to idgen_retries (= 3) times with a delay of idgen_delay (= 1 second). Add the logic to addrconf_dad_failure. By design, we don't clean up dad failed permanent addresses. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:04 +01:00
ipv6 addrconf: add accept_dad sysctl to control DAD operation. - If 0, disable DAD. - If 1, perform DAD (default). - If >1, perform DAD and disable IPv6 operation if DAD for MAC-based link-local address has been failed (RFC4862 5.4.5). We do not follow RFC4862 by default. Refer to the netdev thread entitled "Linux IPv6 DAD not full conform to RFC 4862 ?" http://www.spinics.net/lists/netdev/msg52027.html Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-28 14:18:38 +09:00
ipv6: Fix incorrect disable_ipv6 behavior Fix the behavior of allowing both sysctl and addrconf_dad_failure() to set the disable_ipv6 parameter without any bad side-effects. If DAD fails and accept_dad > 1, we will still set disable_ipv6=1, but then instead of allowing an RA to add an address then immediately fail DAD, we simply don't allow the address to be added in the first place. This also lets the user set this flag and disable all IPv6 addresses on the interface, or on the entire system. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-18 18:22:48 -07:00
net: ipv6: Standardize prefixes for message logging Add #define pr_fmt(fmt) as appropriate. Add "IPv6: " to appropriate files. Convert printk(KERN_<LEVEL> to pr_<level> (but not KERN_DEBUG). Standardize on "%s: " not "%s(): " when emitting __func__. Use "%s: ", __func__ instead of embedding function name. Coalesce formats, align arguments. ADDRCONF output is now prefixed with "IPv6: " Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-15 14:11:53 +00:00
ipv6: Fix incorrect disable_ipv6 behavior Fix the behavior of allowing both sysctl and addrconf_dad_failure() to set the disable_ipv6 parameter without any bad side-effects. If DAD fails and accept_dad > 1, we will still set disable_ipv6=1, but then instead of allowing an RA to add an address then immediately fail DAD, we simply don't allow the address to be added in the first place. This also lets the user set this flag and disable all IPv6 addresses on the interface, or on the entire system. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-18 18:22:48 -07:00
ipv6 addrconf: add accept_dad sysctl to control DAD operation. - If 0, disable DAD. - If 1, perform DAD (default). - If >1, perform DAD and disable IPv6 operation if DAD for MAC-based link-local address has been failed (RFC4862 5.4.5). We do not follow RFC4862 by default. Refer to the netdev thread entitled "Linux IPv6 DAD not full conform to RFC 4862 ?" http://www.spinics.net/lists/netdev/msg52027.html Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-28 14:18:38 +09:00
ipv6: do retries on stable privacy addresses If a DAD conflict is detected, we want to retry privacy stable address generation up to idgen_retries (= 3) times with a delay of idgen_delay (= 1 second). Add the logic to addrconf_dad_failure. By design, we don't clean up dad failed permanent addresses. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:04 +01:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
ipv6: collapse state_lock and lock Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:03 +01:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
[IPV6]: Defer IPv6 device initialization until the link becomes ready. NETDEV_UP might be sent even if the link attached to the interface was not ready. DAD does not make sense in such case, so we won't do so. After interface Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:24 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: fix rtnl locking in setsockopt for anycast and multicast Calling setsockopt with IPV6_JOIN_ANYCAST or IPV6_LEAVE_ANYCAST triggers the assertion in addrconf_join_solict()/addrconf_leave_solict() ipv6_sock_ac_join(), ipv6_sock_ac_drop(), ipv6_sock_ac_close() need to take RTNL before calling ipv6_dev_ac_inc/dec. Same thing with ipv6_sock_mc_join(), ipv6_sock_mc_drop(), ipv6_sock_mc_close() before calling ipv6_dev_mc_inc/dec. This patch moves ASSERT_RTNL() up a level in the call stack. Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Reported-by: Tommi Rantala <tt.rantala@gmail.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-02 10:29:29 +02:00
inet: constify ip headers and in6_addr Add const qualifiers to structs iphdr, ipv6hdr and in6_addr pointers where possible, to make code intention more obvious. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-22 04:53:02 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: fix rtnl locking in setsockopt for anycast and multicast Calling setsockopt with IPV6_JOIN_ANYCAST or IPV6_LEAVE_ANYCAST triggers the assertion in addrconf_join_solict()/addrconf_leave_solict() ipv6_sock_ac_join(), ipv6_sock_ac_drop(), ipv6_sock_ac_close() need to take RTNL before calling ipv6_dev_ac_inc/dec. Same thing with ipv6_sock_mc_join(), ipv6_sock_mc_drop(), ipv6_sock_mc_close() before calling ipv6_dev_mc_inc/dec. This patch moves ASSERT_RTNL() up a level in the call stack. Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Reported-by: Tommi Rantala <tt.rantala@gmail.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-02 10:29:29 +02:00
inet: constify ip headers and in6_addr Add const qualifiers to structs iphdr, ipv6hdr and in6_addr pointers where possible, to make code intention more obvious. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-22 04:53:02 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: fix rtnl locking in setsockopt for anycast and multicast Calling setsockopt with IPV6_JOIN_ANYCAST or IPV6_LEAVE_ANYCAST triggers the assertion in addrconf_join_solict()/addrconf_leave_solict() ipv6_sock_ac_join(), ipv6_sock_ac_drop(), ipv6_sock_ac_close() need to take RTNL before calling ipv6_dev_ac_inc/dec. Same thing with ipv6_sock_mc_join(), ipv6_sock_mc_drop(), ipv6_sock_mc_close() before calling ipv6_dev_mc_inc/dec. This patch moves ASSERT_RTNL() up a level in the call stack. Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Reported-by: Tommi Rantala <tt.rantala@gmail.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-02 10:29:29 +02:00
[NET]: Fix sparse warnings Of this type, mostly: CHECK net/ipv6/netfilter.c net/ipv6/netfilter.c:96:12: warning: symbol 'ipv6_netfilter_init' was not declared. Should it be static? net/ipv6/netfilter.c:101:6: warning: symbol 'ipv6_netfilter_fini' was not declared. Should it be static? Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-16 02:18:02 -03:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
ipv6: don't install anycast address for /128 addresses on routers It does not make sense to create an anycast address for an /128-prefix. Suppress it. As 32019e651c6fce ("ipv6: Do not leave router anycast address for /127 prefixes.") shows we also may not leave them, because we could accidentally remove an anycast address the user has allocated or got added via another prefix. Cc: François-Xavier Le Bail <fx.lebail@yahoo.com> Cc: Thomas Haller <thaller@redhat.com> Cc: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-06 17:53:14 +01:00
Disable router anycast address for /127 prefixes RFC 6164 requires that routers MUST disable Subnet-Router anycast for the prefix when /127 prefixes are used. No need for matching code in addrconf_leave_anycast() as it will silently ignore any attempt to leave an unknown anycast address. Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-05 23:04:13 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: clean up ipv6_dev_ac_inc() Make it accept inet6_dev, and rename it to __ipv6_dev_ac_inc() to reflect this change. Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-11 15:35:11 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: fix rtnl locking in setsockopt for anycast and multicast Calling setsockopt with IPV6_JOIN_ANYCAST or IPV6_LEAVE_ANYCAST triggers the assertion in addrconf_join_solict()/addrconf_leave_solict() ipv6_sock_ac_join(), ipv6_sock_ac_drop(), ipv6_sock_ac_close() need to take RTNL before calling ipv6_dev_ac_inc/dec. Same thing with ipv6_sock_mc_join(), ipv6_sock_mc_drop(), ipv6_sock_mc_close() before calling ipv6_dev_mc_inc/dec. This patch moves ASSERT_RTNL() up a level in the call stack. Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Reported-by: Tommi Rantala <tt.rantala@gmail.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-02 10:29:29 +02:00
[NET]: Fix sparse warnings Of this type, mostly: CHECK net/ipv6/netfilter.c net/ipv6/netfilter.c:96:12: warning: symbol 'ipv6_netfilter_init' was not declared. Should it be static? net/ipv6/netfilter.c:101:6: warning: symbol 'ipv6_netfilter_fini' was not declared. Should it be static? Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-16 02:18:02 -03:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
ipv6: don't install anycast address for /128 addresses on routers It does not make sense to create an anycast address for an /128-prefix. Suppress it. As 32019e651c6fce ("ipv6: Do not leave router anycast address for /127 prefixes.") shows we also may not leave them, because we could accidentally remove an anycast address the user has allocated or got added via another prefix. Cc: François-Xavier Le Bail <fx.lebail@yahoo.com> Cc: Thomas Haller <thaller@redhat.com> Cc: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-06 17:53:14 +01:00
ipv6: Do not leave router anycast address for /127 prefixes. Original commit 2bda8a0c8af... "Disable router anycast address for /127 prefixes" says: | No need for matching code in addrconf_leave_anycast() as it | will silently ignore any attempt to leave an unknown anycast | address. After analysis, because 1) we may add two or more prefixes on the same interface, or 2)user may have manually joined that anycast, we may hit chances to have anycast address which as if we had generated one by /127 prefix and we should not leave from subnet- router anycast address unconditionally. CC: Bjørn Mork <bjorn@mork.no> CC: Brian Haley <brian.haley@hp.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-24 11:44:34 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
6lowpan: IPv6 link local address According to the RFC4944 (Transmission of IPv6 Packets over IEEE 802.15.4 Networks), chapter 7: The IPv6 link-local address [RFC4291] for an IEEE 802.15.4 interface is formed by appending the Interface Identifier, as defined above, to the prefix FE80::/64. 10 bits 54 bits 64 bits +----------+-----------------------+----------------------------+ |1111111010| (zeros) | Interface Identifier | +----------+-----------------------+----------------------------+ This patch adds IPv6 address generation support for the 6lowpan interfaces. Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-10 03:25:52 +00:00
ipv6 addrconf: Fix interface identifiers of 802.15.4 devices. The "Universal/Local" (U/L) bit must be complmented according to RFC4944 and RFC2464. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-28 10:44:29 +00:00
6lowpan: IPv6 link local address According to the RFC4944 (Transmission of IPv6 Packets over IEEE 802.15.4 Networks), chapter 7: The IPv6 link-local address [RFC4291] for an IEEE 802.15.4 interface is formed by appending the Interface Identifier, as defined above, to the prefix FE80::/64. 10 bits 54 bits 64 bits +----------+-----------------------+----------------------------+ |1111111010| (zeros) | Interface Identifier | +----------+-----------------------+----------------------------+ This patch adds IPv6 address generation support for the 6lowpan interfaces. Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-10 03:25:52 +00:00
firewire net, ipv6: IPv6 over Firewire (RFC3146) support. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-25 08:26:24 +00:00
[IPV6]: ADDRCONF: Split up ipv6_generate_eui64() by device type. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 16:54:49 -08:00
net/ipv6/addrconf.c: Checkpatch cleanups net/ipv6/addrconf.c:340: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable net/ipv6/addrconf.c:342: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:444: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:1337: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable net/ipv6/addrconf.c:1526: ERROR: "(foo*)" should be "(foo *)" net/ipv6/addrconf.c:1671: ERROR: open brace '{' following function declarations go on the next line net/ipv6/addrconf.c:1914: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2368: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2370: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2416: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2437: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2573: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:3797: ERROR: "foo* bar" should be "foo *bar" Signed-off-by: Eldad Zack <eldad@fogrefinery.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-01 07:49:08 +00:00
[IPV6]: ADDRCONF: Split up ipv6_generate_eui64() by device type. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 16:54:49 -08:00
ipv6: make __ipv6_isatap_ifid static Another exported symbol only used in one file Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-04 20:17:53 +00:00
[IPV6] ADDRCONF: Uninline ipv6_isatap_eui64(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-10 15:42:09 +09:00
addrconf: refuse isatap eui64 for INADDR_ANY A tunnel with no local ipv4 endpoint would otherwise use the ISATAP linklocal address fe80::5efe:0:0, which is invalid. Rather not add a linklocal address at all. Signed-off-by: Sascha Hlusiak <contact@saschahlusiak.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-19 12:56:51 +00:00
[IPV6] ADDRCONF: Uninline ipv6_isatap_eui64(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-10 15:42:09 +09:00
ipv6: generate link local address for GRE tunnel Use same logic as SIT tunnel to handle link local address for GRE tunnel. OSPFv3 requires link-local address to function. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-08 10:44:30 +00:00
ip6_tunnel: ensure to always have a link local address When an Xin6 tunnel is set up, we check other netdevices to inherit the link- local address. If none is available, the interface will not have any link-local address. RFC4862 expects that each interface has a link local address. Now than this kind of tunnels supports x-netns, it's easy to fall in this case (by creating the tunnel in a netns where ethernet interfaces stand and then moving it to a other netns where no ethernet interface is available). RFC4291, Appendix A suggests two methods: the first is the one currently implemented, the second is to generate a unique identifier, so that we can always generate the link-local address. Let's use eth_random_addr() to generate this interface indentifier. I remove completly the previous method, hence for the whole life of the interface, the link-local address remains the same (previously, it depends on which ethernet interfaces were up when the tunnel interface was set up). Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-20 12:16:06 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: ADDRCONF: Split up ipv6_generate_eui64() by device type. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 16:54:49 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: ADDRCONF: Split up ipv6_generate_eui64() by device type. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 16:54:49 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: ADDRCONF: Split up ipv6_generate_eui64() by device type. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 16:54:49 -08:00
[IPV6]: Add RFC4214 support This patch includes support for the Intra-Site Automatic Tunnel Addressing Protocol (ISATAP) per RFC4214. It uses the SIT module, and is configured using extensions to the "iproute2" utility. The diffs are specific to the Linux 2.6.24-rc2 kernel distribution. This version includes the diff for ./include/linux/if.h which was missing in the v2.4 submission and is needed to make the patch compile. The patch has been installed, compiled and tested in a clean 2.6.24-rc2 kernel build area. Signed-off-by: Fred L. Templin <fred.l.templin@boeing.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-29 22:11:40 +11:00
[IPV6] ADDRCONF: Uninline ipv6_isatap_eui64(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-10 15:42:09 +09:00
ipv6: generate link local address for GRE tunnel Use same logic as SIT tunnel to handle link local address for GRE tunnel. OSPFv3 requires link-local address to function. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-08 10:44:30 +00:00
ipv6: Add checks for 6LOWPAN ARP type Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2013-12-11 17:05:36 +02:00
6lowpan: IPv6 link local address According to the RFC4944 (Transmission of IPv6 Packets over IEEE 802.15.4 Networks), chapter 7: The IPv6 link-local address [RFC4291] for an IEEE 802.15.4 interface is formed by appending the Interface Identifier, as defined above, to the prefix FE80::/64. 10 bits 54 bits 64 bits +----------+-----------------------+----------------------------+ |1111111010| (zeros) | Interface Identifier | +----------+-----------------------+----------------------------+ This patch adds IPv6 address generation support for the 6lowpan interfaces. Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-10 03:25:52 +00:00
firewire net, ipv6: IPv6 over Firewire (RFC3146) support. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-25 08:26:24 +00:00
ip6_tunnel: ensure to always have a link local address When an Xin6 tunnel is set up, we check other netdevices to inherit the link- local address. If none is available, the interface will not have any link-local address. RFC4862 expects that each interface has a link local address. Now than this kind of tunnels supports x-netns, it's easy to fall in this case (by creating the tunnel in a netns where ethernet interfaces stand and then moving it to a other netns where no ethernet interface is available). RFC4291, Appendix A suggests two methods: the first is the one currently implemented, the second is to generate a unique identifier, so that we can always generate the link-local address. Let's use eth_random_addr() to generate this interface indentifier. I remove completly the previous method, hence for the whole life of the interface, the link-local address remains the same (previously, it depends on which ethernet interfaces were up when the tunnel interface was set up). Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-20 12:16:06 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: optimize link local address search ipv6_link_dev_addr sorts newly added addresses by scope in ifp->addr_list. Smaller scope addresses are added to the tail of the list. Use this fact to iterate in reverse over addr_list and break out as soon as a higher scoped one showes up, so we can spare some cycles on machines with lot's of addresses. The ordering of the addresses is not relevant and we are more likely to get the eui64 generated address with this change anyway. Suggested-by: Brian Haley <brian.haley@hp.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-19 21:58:19 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: remove some deadcode __ipv6_regen_rndid no longer returns anything other than 0 so there's no point in verifying what it returns Signed-off-by: Sorin Dumitru <sdumitru@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-30 02:01:45 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: ADDRCONF: Use our standard algorithm for randomized ifid. RFC 3041 describes an algorithm to generate random interface identifier. In RFC 3041bis, it is allowed to use different algorithm than one described in RFC 3041. So, let's use our standard pseudo random algorithm to simplify our implementation. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 16:54:09 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Add RFC4214 support This patch includes support for the Intra-Site Automatic Tunnel Addressing Protocol (ISATAP) per RFC4214. It uses the SIT module, and is configured using extensions to the "iproute2" utility. The diffs are specific to the Linux 2.6.24-rc2 kernel distribution. This version includes the diff for ./include/linux/if.h which was missing in the v2.4 submission and is needed to make the patch compile. The patch has been installed, compiled and tested in a clean 2.6.24-rc2 kernel build area. Signed-off-by: Fred L. Templin <fred.l.templin@boeing.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-29 22:11:40 +11:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Convert addrconf_lock to RCU. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:44:24 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: remove some deadcode __ipv6_regen_rndid no longer returns anything other than 0 so there's no point in verifying what it returns Signed-off-by: Sorin Dumitru <sdumitru@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-30 02:01:45 +00:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
neigh: convert parms to an array This patch converts the neigh param members to an array. This allows easier manipulation which will be needed later on to provide better management of default values. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-07 19:26:53 +01:00
ipv6: Use interface max_desync_factor instead of static default max_desync_factor can be configured per-interface, but nothing is using the value. Reported-by: Piotr Lewandowski <piotr.lewandowski@gmail.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-26 11:42:55 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: ipv6: Standardize prefixes for message logging Add #define pr_fmt(fmt) as appropriate. Add "IPv6: " to appropriate files. Convert printk(KERN_<LEVEL> to pr_<level> (but not KERN_DEBUG). Standardize on "%s: " not "%s(): " when emitting __func__. Use "%s: ", __func__ instead of embedding function name. Coalesce formats, align arguments. ADDRCONF output is now prefixed with "IPv6: " Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-15 14:11:53 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Convert addrconf_lock to RCU. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:44:24 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: remove some deadcode __ipv6_regen_rndid no longer returns anything other than 0 so there's no point in verifying what it returns Signed-off-by: Sorin Dumitru <sdumitru@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-30 02:01:45 +00:00
net/ipv6/addrconf.c: Checkpatch cleanups net/ipv6/addrconf.c:340: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable net/ipv6/addrconf.c:342: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:444: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:1337: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable net/ipv6/addrconf.c:1526: ERROR: "(foo*)" should be "(foo *)" net/ipv6/addrconf.c:1671: ERROR: open brace '{' following function declarations go on the next line net/ipv6/addrconf.c:1914: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2368: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2370: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2416: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2437: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2573: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:3797: ERROR: "foo* bar" should be "foo *bar" Signed-off-by: Eldad Zack <eldad@fogrefinery.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-01 07:49:08 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: remove some deadcode __ipv6_regen_rndid no longer returns anything other than 0 so there's no point in verifying what it returns Signed-off-by: Sorin Dumitru <sdumitru@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-30 02:01:45 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETLINK]: Explicit typing This patch converts "unsigned flags" to use more explict types like u16 instead and incrementally introduces NLMSG_NEW(). Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-06-18 22:55:31 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPv6] route: FIB6 configuration using struct fib6_config Replaces the struct in6_rtmsg based interface orignating from the ioctl interface with a struct fib6_config based on. Allows changing the interface without breaking the ioctl interface and avoids passing on tons of parameters. The recently introduced struct nl_info is used to pass on netlink authorship information for notifications. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-22 00:01:08 -07:00
net: Add VRF support to IPv6 stack As with IPv4 support for VRFs added to IPv6 stack by replacing hardcoded table ids with possibly device specific ones and manipulating the oif in the flowi6. The flow flags are used to skip oif compare in nexthop lookups if the device is enslaved to a VRF via the L3 master device. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-12 11:47:10 -07:00
[IPv6] route: FIB6 configuration using struct fib6_config Replaces the struct in6_rtmsg based interface orignating from the ioctl interface with a struct fib6_config based on. Allows changing the interface without breaking the ioctl interface and avoids passing on tons of parameters. The recently introduced struct nl_info is used to pass on netlink authorship information for notifications. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-22 00:01:08 -07:00
[NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS. Introduce per-net_device inlines: dev_net(), dev_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25 21:47:49 +09:00
ipv6: protocol for address routes This fixes a problem spotted with zebra, but not sure if it is necessary a kernel problem. With IPV6 when an address is added to an interface, Zebra creates a duplicate RIB entry, one as a connected route, and other as a kernel route. When an address is added to an interface the RTN_NEWADDR message causes Zebra to create a connected route. In IPV4 when an address is added to an interface a RTN_NEWROUTE message is set to user space with the protocol RTPROT_KERNEL. Zebra ignores these messages, because it already has the connected route. The problem is that route created in IPV6 has route protocol == RTPROT_BOOT. Was this a design decision or a bug? This fixes it. Same patch applies to both net-2.6 and stable. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-23 05:16:46 -07:00
[IPv6] route: FIB6 configuration using struct fib6_config Replaces the struct in6_rtmsg based interface orignating from the ioctl interface with a struct fib6_config based on. Allows changing the interface without breaking the ioctl interface and avoids passing on tons of parameters. The recently introduced struct nl_info is used to pass on netlink authorship information for notifications. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-22 00:01:08 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: remove ipv6_addr_copy() C assignment can handle struct in6_addr copying. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-21 03:39:03 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: use IS_ENABLED() #if defined(CONFIG_FOO) || defined(CONFIG_FOO_MODULE) can be replaced by #if IS_ENABLED(CONFIG_FOO) Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-29 16:23:10 +00:00
[IPv6] route: FIB6 configuration using struct fib6_config Replaces the struct in6_rtmsg based interface orignating from the ioctl interface with a struct fib6_config based on. Allows changing the interface without breaking the ioctl interface and avoids passing on tons of parameters. The recently introduced struct nl_info is used to pass on netlink authorship information for notifications. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-22 00:01:08 -07:00
[IPV6]: Seperate sit driver to extra module (addrconf.c changes) This patch contains the changes to net/ipv6/addrconf.c to remove sit specific code if the sit driver is not selected. Signed-off-by: Joerg Roedel <joro-lkml@zlug.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-10 14:49:53 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPv6] route: FIB6 configuration using struct fib6_config Replaces the struct in6_rtmsg based interface orignating from the ioctl interface with a struct fib6_config based on. Allows changing the interface without breaking the ioctl interface and avoids passing on tons of parameters. The recently introduced struct nl_info is used to pass on netlink authorship information for notifications. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-22 00:01:08 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: fix route lookup in addrconf_prefix_rcv() The route lookup to find a previously auto-configured route for a prefixes used to use rt6_lookup(), with the prefix from the RA used as an address. However, that kind of lookup ignores routing tables, the prefix length and route flags, so when there were other matching routes, even in different tables and/or with a different prefix length, the wrong route would be manipulated. Now, a new function "addrconf_get_prefix_route()" is used for the route lookup, which searches in RT6_TABLE_PREFIX and takes the prefix-length and route flags into account. Signed-off-by: Andreas Hofmeister <andi@collax.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-26 03:24:29 +00:00
net: Add VRF support to IPv6 stack As with IPv4 support for VRFs added to IPv6 stack by replacing hardcoded table ids with possibly device specific ones and manipulating the oif in the flowi6. The flow flags are used to skip oif compare in nexthop lookups if the device is enslaved to a VRF via the L3 master device. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-12 11:47:10 -07:00
ipv6: fix route lookup in addrconf_prefix_rcv() The route lookup to find a previously auto-configured route for a prefixes used to use rt6_lookup(), with the prefix from the RA used as an address. However, that kind of lookup ignores routing tables, the prefix length and route flags, so when there were other matching routes, even in different tables and/or with a different prefix length, the wrong route would be manipulated. Now, a new function "addrconf_get_prefix_route()" is used for the route lookup, which searches in RT6_TABLE_PREFIX and takes the prefix-length and route flags into account. Signed-off-by: Andreas Hofmeister <andi@collax.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-26 03:24:29 +00:00
net: Add VRF support to IPv6 stack As with IPv4 support for VRFs added to IPv6 stack by replacing hardcoded table ids with possibly device specific ones and manipulating the oif in the flowi6. The flow flags are used to skip oif compare in nexthop lookups if the device is enslaved to a VRF via the L3 master device. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-12 11:47:10 -07:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
ipv6: fix route lookup in addrconf_prefix_rcv() The route lookup to find a previously auto-configured route for a prefixes used to use rt6_lookup(), with the prefix from the RA used as an address. However, that kind of lookup ignores routing tables, the prefix length and route flags, so when there were other matching routes, even in different tables and/or with a different prefix length, the wrong route would be manipulated. Now, a new function "addrconf_get_prefix_route()" is used for the route lookup, which searches in RT6_TABLE_PREFIX and takes the prefix-length and route flags into account. Signed-off-by: Andreas Hofmeister <andi@collax.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-26 03:24:29 +00:00
ipv6: replace write lock with read lock when get route info geting route info does not write rt->rt6i_table, so replace write lock with read lock Suggested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Li RongQing <roy.qing.li@gmail.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-11 21:59:01 +00:00
ipv6: fix route lookup in addrconf_prefix_rcv() The route lookup to find a previously auto-configured route for a prefixes used to use rt6_lookup(), with the prefix from the RA used as an address. However, that kind of lookup ignores routing tables, the prefix length and route flags, so when there were other matching routes, even in different tables and/or with a different prefix length, the wrong route would be manipulated. Now, a new function "addrconf_get_prefix_route()" is used for the route lookup, which searches in RT6_TABLE_PREFIX and takes the prefix-length and route flags into account. Signed-off-by: Andreas Hofmeister <andi@collax.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-26 03:24:29 +00:00
ipv6: Consider RTF_CACHE when searching the fib6 tree It is a prep work for the later bug-fix patch which will stop /128 route from disappearing after pmtu update. The later bug-fix patch will allow a /128 route and its RTF_CACHE clone both exist at the same fib6_node. To do this, we need to prepare the existing fib6 tree search to expect RTF_CACHE for /128 route. Note that the fn->leaf is sorted by rt6i_metric. Hence, RTF_CACHE (if there is any) is always at the front. This property leads to the following: 1. When doing ip6_route_del(), it should honor the RTF_CACHE flag which the caller is used to ask for deleting clone or non-clone. The rtm_to_fib6_config() should also check the RTM_F_CLONED and then set RTF_CACHE accordingly so that: - 'ip -6 r del...' will make ip6_route_del() to delete a route and all its clones. Note that its clones is flushed by fib6_del() - 'ip -6 r flush table cache' will make ip6_route_del() to only delete clone(s). 2. Exclude RTF_CACHE from addrconf_get_prefix_route() which should not configure on a cloned route. 3. No change is need for rt6_device_match() since it currently could return a RTF_CACHE clone route, so the later bug-fix patch will not affect it. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Reviewed-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-28 13:03:03 -07:00
ipv6: fix route lookup in addrconf_prefix_rcv() The route lookup to find a previously auto-configured route for a prefixes used to use rt6_lookup(), with the prefix from the RA used as an address. However, that kind of lookup ignores routing tables, the prefix length and route flags, so when there were other matching routes, even in different tables and/or with a different prefix length, the wrong route would be manipulated. Now, a new function "addrconf_get_prefix_route()" is used for the route lookup, which searches in RT6_TABLE_PREFIX and takes the prefix-length and route flags into account. Signed-off-by: Andreas Hofmeister <andi@collax.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-26 03:24:29 +00:00
ipv6: Kill rt6i_dev and rt6i_expires defines. It just obscures that the netdevice pointer and the expires value are implemented in the dst_entry sub-object of the ipv6 route. And it makes grepping for dst_entry member uses much harder too. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-28 20:19:20 -05:00
ipv6: fix route lookup in addrconf_prefix_rcv() The route lookup to find a previously auto-configured route for a prefixes used to use rt6_lookup(), with the prefix from the RA used as an address. However, that kind of lookup ignores routing tables, the prefix length and route flags, so when there were other matching routes, even in different tables and/or with a different prefix length, the wrong route would be manipulated. Now, a new function "addrconf_get_prefix_route()" is used for the route lookup, which searches in RT6_TABLE_PREFIX and takes the prefix-length and route flags into account. Signed-off-by: Andreas Hofmeister <andi@collax.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-26 03:24:29 +00:00
ipv6: fix the noflags test in addrconf_get_prefix_route The tests on the flags in addrconf_get_prefix_route() does no make much sense: the 'noflags' parameter contains the set of flags that must not match with the route flags, so the test must be done against 'noflags', and not against 'flags'. Signed-off-by: Romain Kuntz <r.kuntz@ipflavors.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-09 15:02:26 +01:00
ipv6: fix route lookup in addrconf_prefix_rcv() The route lookup to find a previously auto-configured route for a prefixes used to use rt6_lookup(), with the prefix from the RA used as an address. However, that kind of lookup ignores routing tables, the prefix length and route flags, so when there were other matching routes, even in different tables and/or with a different prefix length, the wrong route would be manipulated. Now, a new function "addrconf_get_prefix_route()" is used for the route lookup, which searches in RT6_TABLE_PREFIX and takes the prefix-length and route flags into account. Signed-off-by: Andreas Hofmeister <andi@collax.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-26 03:24:29 +00:00
ipv6: replace write lock with read lock when get route info geting route info does not write rt->rt6i_table, so replace write lock with read lock Suggested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Li RongQing <roy.qing.li@gmail.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-11 21:59:01 +00:00
ipv6: fix route lookup in addrconf_prefix_rcv() The route lookup to find a previously auto-configured route for a prefixes used to use rt6_lookup(), with the prefix from the RA used as an address. However, that kind of lookup ignores routing tables, the prefix length and route flags, so when there were other matching routes, even in different tables and/or with a different prefix length, the wrong route would be manipulated. Now, a new function "addrconf_get_prefix_route()" is used for the route lookup, which searches in RT6_TABLE_PREFIX and takes the prefix-length and route flags into account. Signed-off-by: Andreas Hofmeister <andi@collax.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-26 03:24:29 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPv6] route: FIB6 configuration using struct fib6_config Replaces the struct in6_rtmsg based interface orignating from the ioctl interface with a struct fib6_config based on. Allows changing the interface without breaking the ioctl interface and avoids passing on tons of parameters. The recently introduced struct nl_info is used to pass on netlink authorship information for notifications. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-22 00:01:08 -07:00
net: Add VRF support to IPv6 stack As with IPv4 support for VRFs added to IPv6 stack by replacing hardcoded table ids with possibly device specific ones and manipulating the oif in the flowi6. The flow flags are used to skip oif compare in nexthop lookups if the device is enslaved to a VRF via the L3 master device. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-12 11:47:10 -07:00
[IPv6] route: FIB6 configuration using struct fib6_config Replaces the struct in6_rtmsg based interface orignating from the ioctl interface with a struct fib6_config based on. Allows changing the interface without breaking the ioctl interface and avoids passing on tons of parameters. The recently introduced struct nl_info is used to pass on netlink authorship information for notifications. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-22 00:01:08 -07:00
[NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS. Introduce per-net_device inlines: dev_net(), dev_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25 21:47:49 +09:00
[IPv6] route: FIB6 configuration using struct fib6_config Replaces the struct in6_rtmsg based interface orignating from the ioctl interface with a struct fib6_config based on. Allows changing the interface without breaking the ioctl interface and avoids passing on tons of parameters. The recently introduced struct nl_info is used to pass on netlink authorship information for notifications. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-22 00:01:08 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPv6] route: FIB6 configuration using struct fib6_config Replaces the struct in6_rtmsg based interface orignating from the ioctl interface with a struct fib6_config based on. Allows changing the interface without breaking the ioctl interface and avoids passing on tons of parameters. The recently introduced struct nl_info is used to pass on netlink authorship information for notifications. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-22 00:01:08 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
ipv6: Don't add routes to ipv6 disabled interfaces. If the interface has IPv6 disabled, don't add a multicast or link-local route since we won't be adding a link-local address. Reported-by: Mahesh Kelkar <maheshkelkar@gmail.com> Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-20 10:34:30 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Fix for adding multicast route for loopback device automatically. There is no obvious reason to add a default multicast route for loopback devices, otherwise there would be a route entry whose dst.error set to -ENETUNREACH that would blocking all multicast packets. ==================== [ more detailed explanation ] The problem is that the resulting routing table depends on the sequence of interface's initialization and in some situation, that would block all muticast packets. Suppose there are two interfaces on my computer (lo and eth0), if we initailize 'lo' before 'eth0', the resuting routing table(for multicast) would be # ip -6 route show | grep ff00:: unreachable ff00::/8 dev lo metric 256 error -101 ff00::/8 dev eth0 metric 256 When sending multicasting packets, routing subsystem will return the first route entry which with a error set to -101(ENETUNREACH). I know the kernel will set the default ipv6 address for 'lo' when it is up and won't set the default multicast route for it, but there is no reason to stop 'init' program from setting address for 'lo', and that is exactly what systemd did. I am sure there is something wrong with kernel or systemd, currently I preferred kernel caused this problem. ==================== Signed-off-by: Li Wei <lw@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-06 21:23:45 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: introduce IFA_F_MANAGETEMPADDR to tell kernel to manage temporary addresses Creating an address with this flag set will result in kernel taking care of temporary addresses in the same way as if the address was created by kernel itself (after RA receive). This allows userspace applications implementing the autoconfiguration (NetworkManager for example) to implement ipv6 addresses privacy. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:22 +01:00
ipv6: Check RA for sllao when configuring optimistic ipv6 address (v2) Recently Dave noticed that a test we did in ipv6_add_addr to see if we next hop route for the interface we're adding an addres to was wrong (see commit 7ffbcecbeed91e5874e9a1cfc4c0cbb07dac3069). for one, it never triggers, and two, it was completely wrong to begin with. This test was meant to cover this section of RFC 4429: 3.3 Modifications to RFC 2462 Stateless Address Autoconfiguration * (modifies section 5.5) A host MAY choose to configure a new address as an Optimistic Address. A host that does not know the SLLAO of its router SHOULD NOT configure a new address as Optimistic. A router SHOULD NOT configure an Optimistic Address. This patch should bring us into proper compliance with the above clause. Since we only add a SLAAC address after we've received a RA which may or may not contain a source link layer address option, we can pass a pointer to that option to addrconf_prefix_rcv (which may be null if the option is not present), and only set the optimistic flag if the option was found in the RA. Change notes: (v2) modified the new parameter to addrconf_prefix_rcv to be a bool rather than a pointer to make its use more clear as per request from davem. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: "David S. Miller" <davem@davemloft.net> CC: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 10:49:15 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: introduce IFA_F_STABLE_PRIVACY flag We need to mark appropriate addresses so we can do retries in case their DAD failed. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:02 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: Add 'autoconf' and 'disable_ipv6' module parameters Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module. The first controls if IPv6 addresses are autoconfigured from prefixes received in Router Advertisements. The IPv6 loopback (::1) and link-local addresses are still configured. The second controls if IPv6 addresses are desired at all. No IPv6 addresses will be added to any interfaces. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-01 03:07:33 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: convert the uses of ADBG and remove the superfluous parentheses Just follow the Joe Perches's opinion, it is a better way to fix the style errors. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-17 10:27:04 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: Convert net_ratelimit uses to net_<level>_ratelimited Standardize the net core ratelimited logging functions. Coalesce formats, align arguments. Change a printk then vprintk sequence to use printf extension %pV. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-13 21:56:26 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
net: Convert net_ratelimit uses to net_<level>_ratelimited Standardize the net core ratelimited logging functions. Coalesce formats, align arguments. Change a printk then vprintk sequence to use printf extension %pV. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-13 21:56:26 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Allow longer lifetime on 64bit archs. - Allow longer lifetimes (>= 0x7fffffff/HZ) on 64bit archs by using unsigned long. - Shadow this arithmetic overflow workaround by introducing helper functions: addrconf_timeout_fixup() and addrconf_finite_timeout(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-05-27 17:37:49 +09:00
ipv6 addrconf: Allow infinite prefix lifetime. We need to handle infinite prefix lifetime specially. With help from original reporter "Bonitch, Joseph" <Joseph.Bonitch@xerox.com>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-19 16:56:11 -07:00
[IPV6] ADDRCONF: Allow longer lifetime on 64bit archs. - Allow longer lifetimes (>= 0x7fffffff/HZ) on 64bit archs by using unsigned long. - Shadow this arithmetic overflow workaround by introducing helper functions: addrconf_timeout_fixup() and addrconf_finite_timeout(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-05-27 17:37:49 +09:00
[IPV6]: Fix route lifetime. The route expiration time is stored in rt6i_expires in jiffies. The argument of rt6_route_add() for adding a route is not the expiration time in jiffies nor in clock_t, but the lifetime (or time left before expiration) in clock_t. Because of the confusion, we sometimes saw several strange errors (FAILs) in TAHI IPv6 Ready Logo Phase-2 Self Test. The symptoms were analyzed by Mitsuru Chinen <CHINEN@jp.ibm.com>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-19 14:02:45 -08:00
[IPV6] ADDRCONF: Allow longer lifetime on 64bit archs. - Allow longer lifetimes (>= 0x7fffffff/HZ) on 64bit archs by using unsigned long. - Shadow this arithmetic overflow workaround by introducing helper functions: addrconf_timeout_fixup() and addrconf_finite_timeout(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-05-27 17:37:49 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: fix route lookup in addrconf_prefix_rcv() The route lookup to find a previously auto-configured route for a prefixes used to use rt6_lookup(), with the prefix from the RA used as an address. However, that kind of lookup ignores routing tables, the prefix length and route flags, so when there were other matching routes, even in different tables and/or with a different prefix length, the wrong route would be manipulated. Now, a new function "addrconf_get_prefix_route()" is used for the route lookup, which searches in RT6_TABLE_PREFIX and takes the prefix-length and route flags into account. Signed-off-by: Andreas Hofmeister <andi@collax.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-26 03:24:29 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: fix route lookup in addrconf_prefix_rcv() The route lookup to find a previously auto-configured route for a prefixes used to use rt6_lookup(), with the prefix from the RA used as an address. However, that kind of lookup ignores routing tables, the prefix length and route flags, so when there were other matching routes, even in different tables and/or with a different prefix length, the wrong route would be manipulated. Now, a new function "addrconf_get_prefix_route()" is used for the route lookup, which searches in RT6_TABLE_PREFIX and takes the prefix-length and route flags into account. Signed-off-by: Andreas Hofmeister <andi@collax.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-26 03:24:29 +00:00
ipv6 addrconf: Allow infinite prefix lifetime. We need to handle infinite prefix lifetime specially. With help from original reporter "Bonitch, Joseph" <Joseph.Bonitch@xerox.com>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-19 16:56:11 -07:00
[IPV6] ADDRCONF: Allow longer lifetime on 64bit archs. - Allow longer lifetimes (>= 0x7fffffff/HZ) on 64bit archs by using unsigned long. - Shadow this arithmetic overflow workaround by introducing helper functions: addrconf_timeout_fixup() and addrconf_finite_timeout(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-05-27 17:37:49 +09:00
ipv6 addrconf: Allow infinite prefix lifetime. We need to handle infinite prefix lifetime specially. With help from original reporter "Bonitch, Joseph" <Joseph.Bonitch@xerox.com>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-19 16:56:11 -07:00
ipv6: fix problem with expired dst cache If the ipv6 dst cache which copy from the dst generated by ICMPV6 RA packet. this dst cache will not check expire because it has no RTF_EXPIRES flag. So this dst cache will always be used until the dst gc run. Change the struct dst_entry,add a union contains new pointer from and expires. When rt6_info.rt6i_flags has no RTF_EXPIRES flag,the dst.expires has no use. we can use this field to point to where the dst cache copy from. The dst.from is only used in IPV6. rt6_check_expired check if rt6_info.dst.from is expired. ip6_rt_copy only set dst.from when the ort has flag RTF_ADDRCONF and RTF_DEFAULT.then hold the ort. ip6_dst_destroy release the ort. Add some functions to operate the RTF_EXPIRES flag and expires(from) together. and change the code to use these new adding functions. Changes from v5: modify ip6_route_add and ndisc_router_discovery to use new adding functions. Only set dst.from when the ort has flag RTF_ADDRCONF and RTF_DEFAULT.then hold the ort. Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-06 00:13:10 +00:00
ipv6 addrconf: Allow infinite prefix lifetime. We need to handle infinite prefix lifetime specially. With help from original reporter "Bonitch, Joseph" <Joseph.Bonitch@xerox.com>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-19 16:56:11 -07:00
ipv6: fix problem with expired dst cache If the ipv6 dst cache which copy from the dst generated by ICMPV6 RA packet. this dst cache will not check expire because it has no RTF_EXPIRES flag. So this dst cache will always be used until the dst gc run. Change the struct dst_entry,add a union contains new pointer from and expires. When rt6_info.rt6i_flags has no RTF_EXPIRES flag,the dst.expires has no use. we can use this field to point to where the dst cache copy from. The dst.from is only used in IPV6. rt6_check_expired check if rt6_info.dst.from is expired. ip6_rt_copy only set dst.from when the ort has flag RTF_ADDRCONF and RTF_DEFAULT.then hold the ort. ip6_dst_destroy release the ort. Add some functions to operate the RTF_EXPIRES flag and expires(from) together. and change the code to use these new adding functions. Changes from v5: modify ip6_route_add and ndisc_router_discovery to use new adding functions. Only set dst.from when the ort has flag RTF_ADDRCONF and RTF_DEFAULT.then hold the ort. Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-06 00:13:10 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: Allow infinite prefix lifetime. We need to handle infinite prefix lifetime specially. With help from original reporter "Bonitch, Joseph" <Joseph.Bonitch@xerox.com>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-19 16:56:11 -07:00
[IPV6] ADDRCONF: Allow longer lifetime on 64bit archs. - Allow longer lifetimes (>= 0x7fffffff/HZ) on 64bit archs by using unsigned long. - Shadow this arithmetic overflow workaround by introducing helper functions: addrconf_timeout_fixup() and addrconf_finite_timeout(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-05-27 17:37:49 +09:00
ipv6 addrconf: Allow infinite prefix lifetime. We need to handle infinite prefix lifetime specially. With help from original reporter "Bonitch, Joseph" <Joseph.Bonitch@xerox.com>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-19 16:56:11 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: Allow infinite prefix lifetime. We need to handle infinite prefix lifetime specially. With help from original reporter "Bonitch, Joseph" <Joseph.Bonitch@xerox.com>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-19 16:56:11 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: introduce ip6_rt_put() As suggested by Eric, we could introduce a helper function for ipv6 too, to avoid checking if rt is NULL before dst_release(). Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-29 00:13:19 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net/ipv6/addrconf.c: Checkpatch cleanups net/ipv6/addrconf.c:340: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable net/ipv6/addrconf.c:342: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:444: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:1337: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable net/ipv6/addrconf.c:1526: ERROR: "(foo*)" should be "(foo *)" net/ipv6/addrconf.c:1671: ERROR: open brace '{' following function declarations go on the next line net/ipv6/addrconf.c:1914: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2368: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2370: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2416: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2437: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2573: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:3797: ERROR: "foo* bar" should be "foo *bar" Signed-off-by: Eldad Zack <eldad@fogrefinery.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-01 07:49:08 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: ipv6: only invalidate previously tokenized addresses Instead of invalidating all IPv6 addresses with global scope when one decides to use IPv6 tokens, we should only invalidate previous tokens and leave the rest intact until they expire eventually (or are intact forever). For doing this less greedy approach, we're adding a bool at the end of inet6_ifaddr structure instead, for two reasons: i) per-inet6_ifaddr flag space is already used up, making it wider might not be a good idea, since ii) also we do not necessarily need to export this information into user space. Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-09 03:47:16 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: ipv6: add tokenized interface identifier support This patch adds support for IPv6 tokenized IIDs, that allow for administrators to assign well-known host-part addresses to nodes whilst still obtaining global network prefix from Router Advertisements. It is currently in draft status. The primary target for such support is server platforms where addresses are usually manually configured, rather than using DHCPv6 or SLAAC. By using tokenised identifiers, hosts can still determine their network prefix by use of SLAAC, but more readily be automatically renumbered should their network prefix change. [...] The disadvantage with static addresses is that they are likely to require manual editing should the network prefix in use change. If instead there were a method to only manually configure the static identifier part of the IPv6 address, then the address could be automatically updated when a new prefix was introduced, as described in [RFC4192] for example. In such cases a DNS server might be configured with such a tokenised interface identifier of ::53, and SLAAC would use the token in constructing the interface address, using the advertised prefix. [...] http://tools.ietf.org/html/draft-chown-6man-tokenised-ipv6-identifiers-02 The implementation is partially based on top of Mark K. Thompson's proof of concept. However, it uses the Netlink interface for configuration resp. data retrival, so that it can be easily extended in future. Successfully tested by myself. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08 04:01:30 +00:00
net: ipv6: only invalidate previously tokenized addresses Instead of invalidating all IPv6 addresses with global scope when one decides to use IPv6 tokens, we should only invalidate previous tokens and leave the rest intact until they expire eventually (or are intact forever). For doing this less greedy approach, we're adding a bool at the end of inet6_ifaddr structure instead, for two reasons: i) per-inet6_ifaddr flag space is already used up, making it wider might not be a good idea, since ii) also we do not necessarily need to export this information into user space. Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-09 03:47:16 +00:00
ipv6: generation of stable privacy addresses for link-local and autoconf This patch implements the stable privacy address generation for link-local and autoconf addresses as specified in RFC7217. RID = F(Prefix, Net_Iface, Network_ID, DAD_Counter, secret_key) is the RID (random identifier). As the hash function F we chose one round of sha1. Prefix will be either the link-local prefix or the router advertised one. As Net_Iface we use the MAC address of the device. DAD_Counter and secret_key are implemented as specified. We don't use Network_ID, as it couples the code too closely to other subsystems. It is specified as optional in the RFC. As Net_Iface we only use the MAC address: we simply have no stable identifier in the kernel we could possibly use: because this code might run very early, we cannot depend on names, as they might be changed by user space early on during the boot process. A new address generation mode is introduced, IN6_ADDR_GEN_MODE_STABLE_PRIVACY. With iproute2 one can switch back to none or eui64 address configuration mode although the stable_secret is already set. We refuse writes to ipv6/conf/all/stable_secret but only allow ipv6/conf/default/stable_secret and the interface specific file to be written to. The default stable_secret is used as the parameter for the namespace, the interface specific can overwrite the secret, e.g. when switching a network configuration from one system to another while inheriting the secret. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:01 +01:00
ipv6: introduce IFA_F_STABLE_PRIVACY flag We need to mark appropriate addresses so we can do retries in case their DAD failed. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:02 +01:00
ipv6: generation of stable privacy addresses for link-local and autoconf This patch implements the stable privacy address generation for link-local and autoconf addresses as specified in RFC7217. RID = F(Prefix, Net_Iface, Network_ID, DAD_Counter, secret_key) is the RID (random identifier). As the hash function F we chose one round of sha1. Prefix will be either the link-local prefix or the router advertised one. As Net_Iface we use the MAC address of the device. DAD_Counter and secret_key are implemented as specified. We don't use Network_ID, as it couples the code too closely to other subsystems. It is specified as optional in the RFC. As Net_Iface we only use the MAC address: we simply have no stable identifier in the kernel we could possibly use: because this code might run very early, we cannot depend on names, as they might be changed by user space early on during the boot process. A new address generation mode is introduced, IN6_ADDR_GEN_MODE_STABLE_PRIVACY. With iproute2 one can switch back to none or eui64 address configuration mode although the stable_secret is already set. We refuse writes to ipv6/conf/all/stable_secret but only allow ipv6/conf/default/stable_secret and the interface specific file to be written to. The default stable_secret is used as the parameter for the namespace, the interface specific can overwrite the secret, e.g. when switching a network configuration from one system to another while inheriting the secret. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:01 +01:00
net: ipv6: add tokenized interface identifier support This patch adds support for IPv6 tokenized IIDs, that allow for administrators to assign well-known host-part addresses to nodes whilst still obtaining global network prefix from Router Advertisements. It is currently in draft status. The primary target for such support is server platforms where addresses are usually manually configured, rather than using DHCPv6 or SLAAC. By using tokenised identifiers, hosts can still determine their network prefix by use of SLAAC, but more readily be automatically renumbered should their network prefix change. [...] The disadvantage with static addresses is that they are likely to require manual editing should the network prefix in use change. If instead there were a method to only manually configure the static identifier part of the IPv6 address, then the address could be automatically updated when a new prefix was introduced, as described in [RFC4192] for example. In such cases a DNS server might be configured with such a tokenised interface identifier of ::53, and SLAAC would use the token in constructing the interface address, using the advertised prefix. [...] http://tools.ietf.org/html/draft-chown-6man-tokenised-ipv6-identifiers-02 The implementation is partially based on top of Mark K. Thompson's proof of concept. However, it uses the Netlink interface for configuration resp. data retrival, so that it can be easily extended in future. Successfully tested by myself. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08 04:01:30 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: Convert net_ratelimit uses to net_<level>_ratelimited Standardize the net core ratelimited logging functions. Coalesce formats, align arguments. Change a printk then vprintk sequence to use printf extension %pV. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-13 21:56:26 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 netns: Make several "global" sysctl variables namespace aware. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-19 22:35:03 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
ipv6: Check RA for sllao when configuring optimistic ipv6 address (v2) Recently Dave noticed that a test we did in ipv6_add_addr to see if we next hop route for the interface we're adding an addres to was wrong (see commit 7ffbcecbeed91e5874e9a1cfc4c0cbb07dac3069). for one, it never triggers, and two, it was completely wrong to begin with. This test was meant to cover this section of RFC 4429: 3.3 Modifications to RFC 2462 Stateless Address Autoconfiguration * (modifies section 5.5) A host MAY choose to configure a new address as an Optimistic Address. A host that does not know the SLLAO of its router SHOULD NOT configure a new address as Optimistic. A router SHOULD NOT configure an Optimistic Address. This patch should bring us into proper compliance with the above clause. Since we only add a SLAAC address after we've received a RA which may or may not contain a source link layer address option, we can pass a pointer to that option to addrconf_prefix_rcv (which may be null if the option is not present), and only set the optimistic flag if the option was found in the RA. Change notes: (v2) modified the new parameter to addrconf_prefix_rcv to be a bool rather than a pointer to make its use more clear as per request from davem. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: "David S. Miller" <davem@davemloft.net> CC: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04 10:49:15 +00:00
ipv6: keep existing flags when setting IFA_F_OPTIMISTIC Commit 64236f3f3d74 ("ipv6: introduce IFA_F_STABLE_PRIVACY flag") failed to update the setting of the IFA_F_OPTIMISTIC flag, causing the IFA_F_STABLE_PRIVACY flag to be lost if IFA_F_OPTIMISTIC is set. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Fixes: 64236f3f3d74 ("ipv6: introduce IFA_F_STABLE_PRIVACY flag") Signed-off-by: Bjørn Mork <bjorn@mork.no> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-04 14:15:08 +01:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move peer_addr init into ipv6_add_addr() Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-01 10:41:27 +02:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
ipv6: prevent race between address creation and removal There's a race in IPv6 automatic addess assignment. The address is created with zero lifetime when it's added to various address lists. Before it gets assigned the correct lifetime, there's a window where a new address may be configured. This causes the semi-initiated address to be deleted in addrconf_verify. This was discovered as a reference leak caused by concurrent run of __ipv6_ifa_notify for both RTM_NEWADDR and RTM_DELADDR with the same address. Fix this by setting the lifetime before the address is added to inet6_addr_lst. A few notes: 1. In addrconf_prefix_rcv, by setting update_lft to zero, the if (update_lft) { ... } condition is no longer executed for newly created addresses. This is okay, as the ifp fields are set in ipv6_add_addr now and ipv6_ifa_notify is called (and has been called) through addrconf_dad_start. 2. The removal of the whole block under ifp->lock in inet6_addr_add is okay, too, as tstamp is initialized to jiffies in ipv6_add_addr. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-01 10:41:28 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Use IS_ERR_OR_NULL(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-22 06:32:54 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: prevent race between address creation and removal There's a race in IPv6 automatic addess assignment. The address is created with zero lifetime when it's added to various address lists. Before it gets assigned the correct lifetime, there's a window where a new address may be configured. This causes the semi-initiated address to be deleted in addrconf_verify. This was discovered as a reference leak caused by concurrent run of __ipv6_ifa_notify for both RTM_NEWADDR and RTM_DELADDR with the same address. Fix this by setting the lifetime before the address is added to inet6_addr_lst. A few notes: 1. In addrconf_prefix_rcv, by setting update_lft to zero, the if (update_lft) { ... } condition is no longer executed for newly created addresses. This is okay, as the ifp fields are set in ipv6_add_addr now and ipv6_ifa_notify is called (and has been called) through addrconf_dad_start. 2. The removal of the whole block under ifp->lock in inet6_addr_add is okay, too, as tstamp is initialized to jiffies in ipv6_add_addr. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-01 10:41:28 +02:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: ipv6: only invalidate previously tokenized addresses Instead of invalidating all IPv6 addresses with global scope when one decides to use IPv6 tokens, we should only invalidate previous tokens and leave the rest intact until they expire eventually (or are intact forever). For doing this less greedy approach, we're adding a bool at the end of inet6_ifaddr structure instead, for two reasons: i) per-inet6_ifaddr flag space is already used up, making it wider might not be a good idea, since ii) also we do not necessarily need to export this information into user space. Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-09 03:47:16 +00:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
ipv6: Remove unused argument to addrconf_dad_start(). Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-14 21:37:40 -04:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: extend ifa_flags to u32 There is no more space in u8 ifa_flags. So do what davem suffested and add another netlink attr called IFA_FLAGS for carry more flags. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:21 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: collapse state_lock and lock Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:03 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: prevent race between address creation and removal There's a race in IPv6 automatic addess assignment. The address is created with zero lifetime when it's added to various address lists. Before it gets assigned the correct lifetime, there's a window where a new address may be configured. This causes the semi-initiated address to be deleted in addrconf_verify. This was discovered as a reference leak caused by concurrent run of __ipv6_ifa_notify for both RTM_NEWADDR and RTM_DELADDR with the same address. Fix this by setting the lifetime before the address is added to inet6_addr_lst. A few notes: 1. In addrconf_prefix_rcv, by setting update_lft to zero, the if (update_lft) { ... } condition is no longer executed for newly created addresses. This is okay, as the ifp fields are set in ipv6_add_addr now and ipv6_ifa_notify is called (and has been called) through addrconf_dad_start. 2. The removal of the whole block under ifp->lock in inet6_addr_add is okay, too, as tstamp is initialized to jiffies in ipv6_add_addr. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-01 10:41:28 +02:00
ipv6: replace min/casting by min_t Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-27 19:11:56 +01:00
ipv6: Fix preferred_lft not updating in some cases Consider the scenario where an IPv6 router is advertising a fixed preferred_lft of 1800 seconds, while the valid_lft begins at 3600 seconds and counts down in realtime. A client should reset its preferred_lft to 1800 every time the RA is received, but a bug is causing Linux to ignore the update. The core problem is here: if (prefered_lft != ifp->prefered_lft) { Note that ifp->prefered_lft is an offset, so it doesn't decrease over time. Thus, the comparison is always (1800 != 1800), which fails to trigger an update. The most direct solution would be to compute a "stored_prefered_lft", and use that value in the comparison. But I think that trying to filter out unnecessary updates here is a premature optimization. In order for the filter to apply, both of these would need to hold: - The advertised valid_lft and preferred_lft are both declining in real time. - No clock skew exists between the router & client. So in this patch, I've set "update_lft = 1" unconditionally, which allows the surrounding code to be greatly simplified. Signed-off-by: Paul Marks <pmarks@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-25 15:12:55 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: collapse state_lock and lock Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:03 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: collapse state_lock and lock Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:03 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: introduce IFA_F_MANAGETEMPADDR to tell kernel to manage temporary addresses Creating an address with this flag set will result in kernel taking care of temporary addresses in the same way as if the address was created by kernel itself (after RA receive). This allows userspace applications implementing the autoconfiguration (NetworkManager for example) to implement ipv6 addresses privacy. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:22 +01:00
ipv6: Remove privacy config option. The code for privacy extentions is very mature, and making it configurable only gives marginal memory/code savings in exchange for obfuscation and hard to read code via CPP ifdef'ery. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-28 20:07:50 -04:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETNS][IPV6] addrconf - Pass the proper network namespace parameters to addrconf This patch propagates the network namespace pointer to the address configuration routines which need it, which means adding a new parameter to these functions, and make them use it instead of using the initial network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-05 10:46:57 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETNS][IPV6] addrconf - Pass the proper network namespace parameters to addrconf This patch propagates the network namespace pointer to the address configuration routines which need it, which means adding a new parameter to these functions, and make them use it instead of using the initial network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-05 10:46:57 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: use IS_ENABLED() #if defined(CONFIG_FOO) || defined(CONFIG_FOO_MODULE) can be replaced by #if IS_ENABLED(CONFIG_FOO) Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-29 16:23:10 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ip: convert to net_device_ops for ioctl Convert to net_device_ops function table pointer for ioctl. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-19 21:52:05 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: addrconf sparse warnings Get rid of a couple of sparse warnings in IPV6 addrconf code. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-21 00:48:43 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ip: convert to net_device_ops for ioctl Convert to net_device_ops function table pointer for ioctl. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-19 21:52:05 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETNS][IPV6] addrconf - Pass the proper network namespace parameters to addrconf This patch propagates the network namespace pointer to the address configuration routines which need it, which means adding a new parameter to these functions, and make them use it instead of using the initial network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-05 10:46:57 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Seperate sit driver to extra module (addrconf.c changes) This patch contains the changes to net/ipv6/addrconf.c to remove sit specific code if the sit driver is not selected. Signed-off-by: Joerg Roedel <joro-lkml@zlug.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-10 14:49:53 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
multicast: Extend ip address command to enable multicast group join/leave on Joining multicast group on ethernet level via "ip maddr" command would not work if we have an Ethernet switch that does igmp snooping since the switch would not replicate multicast packets on ports that did not have IGMP reports for the multicast addresses. Linux vxlan interfaces created via "ip link add vxlan" have the group option that enables then to do the required join. By extending ip address command with option "autojoin" we can get similar functionality for openvswitch vxlan interfaces as well as other tunneling mechanisms that need to receive multicast traffic. The kernel code is structured similar to how the vxlan driver does a group join / leave. example: ip address add 224.1.1.10/24 dev eth5 autojoin ip address del 224.1.1.10/24 dev eth5 Signed-off-by: Madhu Challa <challa@noironetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-25 09:58:35 -08:00
ipv4, ipv6: kill ip_mc_{join, leave}_group and ipv6_sock_mc_{join, drop} in favor of their inner __ ones, which doesn't grab rtnl. As these functions need to operate on a locked socket, we can't be grabbing rtnl by then. It's too late and doing so causes reversed locking. So this patch: - move rtnl handling to callers instead while already fixing some reversed locking situations, like on vxlan and ipvs code. - renames __ ones to not have the __ mark: __ip_mc_{join,leave}_group -> ip_mc_{join,leave}_group __ipv6_sock_mc_{join,drop} -> ipv6_sock_mc_{join,drop} Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 14:50:43 -03:00
multicast: Extend ip address command to enable multicast group join/leave on Joining multicast group on ethernet level via "ip maddr" command would not work if we have an Ethernet switch that does igmp snooping since the switch would not replicate multicast packets on ports that did not have IGMP reports for the multicast addresses. Linux vxlan interfaces created via "ip link add vxlan" have the group option that enables then to do the required join. By extending ip address command with option "autojoin" we can get similar functionality for openvswitch vxlan interfaces as well as other tunneling mechanisms that need to receive multicast traffic. The kernel code is structured similar to how the vxlan driver does a group join / leave. example: ip address add 224.1.1.10/24 dev eth5 autojoin ip address del 224.1.1.10/24 dev eth5 Signed-off-by: Madhu Challa <challa@noironetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-25 09:58:35 -08:00
ipv4, ipv6: kill ip_mc_{join, leave}_group and ipv6_sock_mc_{join, drop} in favor of their inner __ ones, which doesn't grab rtnl. As these functions need to operate on a locked socket, we can't be grabbing rtnl by then. It's too late and doing so causes reversed locking. So this patch: - move rtnl handling to callers instead while already fixing some reversed locking situations, like on vxlan and ipvs code. - renames __ ones to not have the __ mark: __ip_mc_{join,leave}_group -> ip_mc_{join,leave}_group __ipv6_sock_mc_{join,drop} -> ipv6_sock_mc_{join,drop} Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 14:50:43 -03:00
multicast: Extend ip address command to enable multicast group join/leave on Joining multicast group on ethernet level via "ip maddr" command would not work if we have an Ethernet switch that does igmp snooping since the switch would not replicate multicast packets on ports that did not have IGMP reports for the multicast addresses. Linux vxlan interfaces created via "ip link add vxlan" have the group option that enables then to do the required join. By extending ip address command with option "autojoin" we can get similar functionality for openvswitch vxlan interfaces as well as other tunneling mechanisms that need to receive multicast traffic. The kernel code is structured similar to how the vxlan driver does a group join / leave. example: ip address add 224.1.1.10/24 dev eth5 autojoin ip address del 224.1.1.10/24 dev eth5 Signed-off-by: Madhu Challa <challa@noironetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-25 09:58:35 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: extend ifa_flags to u32 There is no more space in u8 ifa_flags. So do what davem suffested and add another netlink attr called IFA_FLAGS for carry more flags. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:21 +01:00
ipv6: add support of peer address This patch adds the support of peer address for IPv6. For example, it is possible to specify the remote end of a 6inY tunnel. This was already possible in IPv4: ip addr add ip1 peer ip2 dev dev1 The peer address is specified with IFA_ADDRESS and the local address with IFA_LOCAL (like explained in include/uapi/linux/if_addr.h). Note that the API is not changed, because before this patch, it was not possible to specify two different addresses in IFA_LOCAL and IFA_REMOTE. There is a small change for the dump: if the peer is different from ::, IFA_ADDRESS will contain the peer address instead of the local address. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-16 22:32:00 +00:00
ipv6 addrconf: extend ifa_flags to u32 There is no more space in u8 ifa_flags. So do what davem suffested and add another netlink attr called IFA_FLAGS for carry more flags. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:21 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
multicast: Extend ip address command to enable multicast group join/leave on Joining multicast group on ethernet level via "ip maddr" command would not work if we have an Ethernet switch that does igmp snooping since the switch would not replicate multicast packets on ports that did not have IGMP reports for the multicast addresses. Linux vxlan interfaces created via "ip link add vxlan" have the group option that enables then to do the required join. By extending ip address command with option "autojoin" we can get similar functionality for openvswitch vxlan interfaces as well as other tunneling mechanisms that need to receive multicast traffic. The kernel code is structured similar to how the vxlan driver does a group join / leave. example: ip address add 224.1.1.10/24 dev eth5 autojoin ip address del 224.1.1.10/24 dev eth5 Signed-off-by: Madhu Challa <challa@noironetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-25 09:58:35 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: Allow infinite prefix lifetime. We need to handle infinite prefix lifetime specially. With help from original reporter "Bonitch, Joseph" <Joseph.Bonitch@xerox.com>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-19 16:56:11 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
[IPV6] ADDRCONF: Check range of prefix length As of now, the prefix length is not vaildated when adding or deleting addresses. The value is passed directly into the inet6_ifaddr structure and later passed on to memcmp() as length indicator which relies on the value never to exceed 128 (bits). Due to the missing check, the currently code allows for any 8 bit value to be passed on as prefix length while using the netlink interface, and any 32 bit value while using the ioctl interface. [Use unsigned int instead to generate better code - yoshfuji] Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-05-28 16:54:22 +02:00
[IPV6] ADDRCONF: Allow user-space to specify address lifetime Based on MIPL2 kernel patch. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:10 +09:00
ipv6 addrconf: introduce IFA_F_MANAGETEMPADDR to tell kernel to manage temporary addresses Creating an address with this flag set will result in kernel taking care of temporary addresses in the same way as if the address was created by kernel itself (after RA receive). This allows userspace applications implementing the autoconfiguration (NetworkManager for example) to implement ipv6 addresses privacy. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:22 +01:00
[NETNS][IPV6] addrconf - Pass the proper network namespace parameters to addrconf This patch propagates the network namespace pointer to the address configuration routines which need it, which means adding a new parameter to these functions, and make them use it instead of using the initial network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-05 10:46:57 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
ipv6: Don't add routes to ipv6 disabled interfaces. If the interface has IPv6 disabled, don't add a multicast or link-local route since we won't be adding a link-local address. Reported-by: Mahesh Kelkar <maheshkelkar@gmail.com> Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-20 10:34:30 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
multicast: Extend ip address command to enable multicast group join/leave on Joining multicast group on ethernet level via "ip maddr" command would not work if we have an Ethernet switch that does igmp snooping since the switch would not replicate multicast packets on ports that did not have IGMP reports for the multicast addresses. Linux vxlan interfaces created via "ip link add vxlan" have the group option that enables then to do the required join. By extending ip address command with option "autojoin" we can get similar functionality for openvswitch vxlan interfaces as well as other tunneling mechanisms that need to receive multicast traffic. The kernel code is structured similar to how the vxlan driver does a group join / leave. example: ip address add 224.1.1.10/24 dev eth5 autojoin ip address del 224.1.1.10/24 dev eth5 Signed-off-by: Madhu Challa <challa@noironetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-25 09:58:35 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Allow longer lifetime on 64bit archs. - Allow longer lifetimes (>= 0x7fffffff/HZ) on 64bit archs by using unsigned long. - Shadow this arithmetic overflow workaround by introducing helper functions: addrconf_timeout_fixup() and addrconf_finite_timeout(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-05-27 17:37:49 +09:00
ipv6 addrconf: Allow infinite prefix lifetime. We need to handle infinite prefix lifetime specially. With help from original reporter "Bonitch, Joseph" <Joseph.Bonitch@xerox.com>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-19 16:56:11 -07:00
[IPV6] ADDRCONF: Allow longer lifetime on 64bit archs. - Allow longer lifetimes (>= 0x7fffffff/HZ) on 64bit archs by using unsigned long. - Shadow this arithmetic overflow workaround by introducing helper functions: addrconf_timeout_fixup() and addrconf_finite_timeout(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-05-27 17:37:49 +09:00
ipv6 addrconf: Allow infinite prefix lifetime. We need to handle infinite prefix lifetime specially. With help from original reporter "Bonitch, Joseph" <Joseph.Bonitch@xerox.com>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-19 16:56:11 -07:00
[IPV6] ADDRCONF: Allow user-space to specify address lifetime Based on MIPL2 kernel patch. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:10 +09:00
[IPV6] ADDRCONF: Allow longer lifetime on 64bit archs. - Allow longer lifetimes (>= 0x7fffffff/HZ) on 64bit archs by using unsigned long. - Shadow this arithmetic overflow workaround by introducing helper functions: addrconf_timeout_fixup() and addrconf_finite_timeout(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-05-27 17:37:49 +09:00
[IPV6] ADDRCONF: Allow user-space to specify address lifetime Based on MIPL2 kernel patch. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:10 +09:00
ipv6: prevent race between address creation and removal There's a race in IPv6 automatic addess assignment. The address is created with zero lifetime when it's added to various address lists. Before it gets assigned the correct lifetime, there's a window where a new address may be configured. This causes the semi-initiated address to be deleted in addrconf_verify. This was discovered as a reference leak caused by concurrent run of __ipv6_ifa_notify for both RTM_NEWADDR and RTM_DELADDR with the same address. Fix this by setting the lifetime before the address is added to inet6_addr_lst. A few notes: 1. In addrconf_prefix_rcv, by setting update_lft to zero, the if (update_lft) { ... } condition is no longer executed for newly created addresses. This is okay, as the ifp fields are set in ipv6_add_addr now and ipv6_ifa_notify is called (and has been called) through addrconf_dad_start. 2. The removal of the whole block under ifp->lock in inet6_addr_add is okay, too, as tstamp is initialized to jiffies in ipv6_add_addr. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-01 10:41:28 +02:00
[IPV6] ADDRCONF: Allow user-space to specify address lifetime Based on MIPL2 kernel patch. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:10 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: add IFA_F_NOPREFIXROUTE flag to suppress creation of IP6 routes When adding/modifying an IPv6 address, the userspace application needs a way to suppress adding a prefix route. This is for example relevant together with IFA_F_MANAGERTEMPADDR, where userspace creates autoconf generated addresses, but depending on on-link, no route for the prefix should be added. Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-15 15:36:58 +01:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
ipv6: Remove unused argument to addrconf_dad_start(). Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-14 21:37:40 -04:00
ipv6 addrconf: introduce IFA_F_MANAGETEMPADDR to tell kernel to manage temporary addresses Creating an address with this flag set will result in kernel taking care of temporary addresses in the same way as if the address was created by kernel itself (after RA receive). This allows userspace applications implementing the autoconfiguration (NetworkManager for example) to implement ipv6 addresses privacy. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:22 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
multicast: Extend ip address command to enable multicast group join/leave on Joining multicast group on ethernet level via "ip maddr" command would not work if we have an Ethernet switch that does igmp snooping since the switch would not replicate multicast packets on ports that did not have IGMP reports for the multicast addresses. Linux vxlan interfaces created via "ip link add vxlan" have the group option that enables then to do the required join. By extending ip address command with option "autojoin" we can get similar functionality for openvswitch vxlan interfaces as well as other tunneling mechanisms that need to receive multicast traffic. The kernel code is structured similar to how the vxlan driver does a group join / leave. example: ip address add 224.1.1.10/24 dev eth5 autojoin ip address del 224.1.1.10/24 dev eth5 Signed-off-by: Madhu Challa <challa@noironetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-25 09:58:35 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: support IFA_F_MANAGETEMPADDR for address deletion too Userspace applications can use IFA_F_MANAGETEMPADDR with RTM_NEWADDR already to indicate that the kernel should take care of temporary address management. This patch adds related functionality to RTM_DELADDR. By setting IFA_F_MANAGETEMPADDR a userspace application can indicate that the kernel should delete all related temporary addresses as well. A corresponding patch for the "ip addr del" command has been applied to iproute2 already. Signed-off-by: Heiner Kallweit <heiner.kallweit@web.de> Reviewed-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-20 21:29:36 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
[IPV6] ADDRCONF: Check range of prefix length As of now, the prefix length is not vaildated when adding or deleting addresses. The value is passed directly into the inet6_ifaddr structure and later passed on to memcmp() as length indicator which relies on the value never to exceed 128 (bits). Due to the missing check, the currently code allows for any 8 bit value to be passed on as prefix length while using the netlink interface, and any 32 bit value while using the ioctl interface. [Use unsigned int instead to generate better code - yoshfuji] Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-05-28 16:54:22 +02:00
[NETNS][IPV6] addrconf - Pass the proper network namespace parameters to addrconf This patch propagates the network namespace pointer to the address configuration routines which need it, which means adding a new parameter to these functions, and make them use it instead of using the initial network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-05 10:46:57 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: coding style improvements (remove assignment in if statements) This change has no functional impact and simply addresses some coding style issues detected by checkpatch. Specifically this change adjusts "if" statements which also include the assignment of a variable. No changes to the resultant object files result as determined by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-23 21:28:43 +00:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: convert idev_list to list macros Convert to list macro's for the list of addresses per interface in IPv6. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:13 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
ipv6: support IFA_F_MANAGETEMPADDR for address deletion too Userspace applications can use IFA_F_MANAGETEMPADDR with RTM_NEWADDR already to indicate that the kernel should take care of temporary address management. This patch adds related functionality to RTM_DELADDR. By setting IFA_F_MANAGETEMPADDR a userspace application can indicate that the kernel should delete all related temporary addresses as well. A corresponding patch for the "ip addr del" command has been applied to iproute2 already. Signed-off-by: Heiner Kallweit <heiner.kallweit@web.de> Reviewed-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-20 21:29:36 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: support IFA_F_MANAGETEMPADDR for address deletion too Userspace applications can use IFA_F_MANAGETEMPADDR with RTM_NEWADDR already to indicate that the kernel should take care of temporary address management. This patch adds related functionality to RTM_DELADDR. By setting IFA_F_MANAGETEMPADDR a userspace application can indicate that the kernel should delete all related temporary addresses as well. A corresponding patch for the "ip addr del" command has been applied to iproute2 already. Signed-off-by: Heiner Kallweit <heiner.kallweit@web.de> Reviewed-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-20 21:29:36 +02:00
multicast: Extend ip address command to enable multicast group join/leave on Joining multicast group on ethernet level via "ip maddr" command would not work if we have an Ethernet switch that does igmp snooping since the switch would not replicate multicast packets on ports that did not have IGMP reports for the multicast addresses. Linux vxlan interfaces created via "ip link add vxlan" have the group option that enables then to do the required join. By extending ip address command with option "autojoin" we can get similar functionality for openvswitch vxlan interfaces as well as other tunneling mechanisms that need to receive multicast traffic. The kernel code is structured similar to how the vxlan driver does a group join / leave. example: ip address add 224.1.1.10/24 dev eth5 autojoin ip address del 224.1.1.10/24 dev eth5 Signed-off-by: Madhu Challa <challa@noironetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-25 09:58:35 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETNS][IPV6] addrconf - Pass the proper network namespace parameters to addrconf This patch propagates the network namespace pointer to the address configuration routines which need it, which means adding a new parameter to these functions, and make them use it instead of using the initial network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-05 10:46:57 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
net: Allow userns root to control ipv6 Allow an unpriviled user who has created a user namespace, and then created a network namespace to effectively use the new network namespace, by reducing capable(CAP_NET_ADMIN) and capable(CAP_NET_RAW) calls to be ns_capable(net->user_ns, CAP_NET_ADMIN), or capable(net->user_ns, CAP_NET_RAW) calls. Settings that merely control a single network device are allowed. Either the network device is a logical network device where restrictions make no difference or the network device is hardware NIC that has been explicity moved from the initial network namespace. In general policy and network stack state changes are allowed while resource control is left unchanged. Allow the SIOCSIFADDR ioctl to add ipv6 addresses. Allow the SIOCDIFADDR ioctl to delete ipv6 addresses. Allow the SIOCADDRT ioctl to add ipv6 routes. Allow the SIOCDELRT ioctl to delete ipv6 routes. Allow creation of ipv6 raw sockets. Allow setting the IPV6_JOIN_ANYCAST socket option. Allow setting the IPV6_FL_A_RENEW parameter of the IPV6_FLOWLABEL_MGR socket option. Allow setting the IPV6_TRANSPARENT socket option. Allow setting the IPV6_HOPOPTS socket option. Allow setting the IPV6_RTHDRDSTOPTS socket option. Allow setting the IPV6_DSTOPTS socket option. Allow setting the IPV6_IPSEC_POLICY socket option. Allow setting the IPV6_XFRM_POLICY socket option. Allow sending packets with the IPV6_2292HOPOPTS control message. Allow sending packets with the IPV6_2292DSTOPTS control message. Allow sending packets with the IPV6_RTHDRDSTOPTS control message. Allow setting the multicast routing socket options on non multicast routing sockets. Allow the SIOCADDTUNNEL, SIOCCHGTUNNEL, and SIOCDELTUNNEL ioctls for setting up, changing and deleting tunnels over ipv6. Allow the SIOCADDTUNNEL, SIOCCHGTUNNEL, SIOCDELTUNNEL ioctls for setting up, changing and deleting ipv6 over ipv4 tunnels. Allow the SIOCADDPRL, SIOCDELPRL, SIOCCHGPRL ioctls for adding, deleting, and changing the potential router list for ISATAP tunnels. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-16 03:03:06 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: add support of peer address This patch adds the support of peer address for IPv6. For example, it is possible to specify the remote end of a 6inY tunnel. This was already possible in IPv4: ip addr add ip1 peer ip2 dev dev1 The peer address is specified with IFA_ADDRESS and the local address with IFA_LOCAL (like explained in include/uapi/linux/if_addr.h). Note that the API is not changed, because before this patch, it was not possible to specify two different addresses in IFA_LOCAL and IFA_REMOTE. There is a small change for the dump: if the peer is different from ::, IFA_ADDRESS will contain the peer address instead of the local address. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-16 22:32:00 +00:00
[NETNS][IPV6] addrconf - Pass the proper network namespace parameters to addrconf This patch propagates the network namespace pointer to the address configuration routines which need it, which means adding a new parameter to these functions, and make them use it instead of using the initial network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-05 10:46:57 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETNS][IPV6] addrconf - Pass the proper network namespace parameters to addrconf This patch propagates the network namespace pointer to the address configuration routines which need it, which means adding a new parameter to these functions, and make them use it instead of using the initial network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-05 10:46:57 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
net: Allow userns root to control ipv6 Allow an unpriviled user who has created a user namespace, and then created a network namespace to effectively use the new network namespace, by reducing capable(CAP_NET_ADMIN) and capable(CAP_NET_RAW) calls to be ns_capable(net->user_ns, CAP_NET_ADMIN), or capable(net->user_ns, CAP_NET_RAW) calls. Settings that merely control a single network device are allowed. Either the network device is a logical network device where restrictions make no difference or the network device is hardware NIC that has been explicity moved from the initial network namespace. In general policy and network stack state changes are allowed while resource control is left unchanged. Allow the SIOCSIFADDR ioctl to add ipv6 addresses. Allow the SIOCDIFADDR ioctl to delete ipv6 addresses. Allow the SIOCADDRT ioctl to add ipv6 routes. Allow the SIOCDELRT ioctl to delete ipv6 routes. Allow creation of ipv6 raw sockets. Allow setting the IPV6_JOIN_ANYCAST socket option. Allow setting the IPV6_FL_A_RENEW parameter of the IPV6_FLOWLABEL_MGR socket option. Allow setting the IPV6_TRANSPARENT socket option. Allow setting the IPV6_HOPOPTS socket option. Allow setting the IPV6_RTHDRDSTOPTS socket option. Allow setting the IPV6_DSTOPTS socket option. Allow setting the IPV6_IPSEC_POLICY socket option. Allow setting the IPV6_XFRM_POLICY socket option. Allow sending packets with the IPV6_2292HOPOPTS control message. Allow sending packets with the IPV6_2292DSTOPTS control message. Allow sending packets with the IPV6_RTHDRDSTOPTS control message. Allow setting the multicast routing socket options on non multicast routing sockets. Allow the SIOCADDTUNNEL, SIOCCHGTUNNEL, and SIOCDELTUNNEL ioctls for setting up, changing and deleting tunnels over ipv6. Allow the SIOCADDTUNNEL, SIOCCHGTUNNEL, SIOCDELTUNNEL ioctls for setting up, changing and deleting ipv6 over ipv4 tunnels. Allow the SIOCADDPRL, SIOCDELPRL, SIOCCHGPRL ioctls for adding, deleting, and changing the potential router list for ISATAP tunnels. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-16 03:03:06 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: support IFA_F_MANAGETEMPADDR for address deletion too Userspace applications can use IFA_F_MANAGETEMPADDR with RTM_NEWADDR already to indicate that the kernel should take care of temporary address management. This patch adds related functionality to RTM_DELADDR. By setting IFA_F_MANAGETEMPADDR a userspace application can indicate that the kernel should delete all related temporary addresses as well. A corresponding patch for the "ip addr del" command has been applied to iproute2 already. Signed-off-by: Heiner Kallweit <heiner.kallweit@web.de> Reviewed-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-20 21:29:36 +02:00
[NETNS][IPV6] addrconf - Pass the proper network namespace parameters to addrconf This patch propagates the network namespace pointer to the address configuration routines which need it, which means adding a new parameter to these functions, and make them use it instead of using the initial network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-05 10:46:57 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6/addrconf: common code located $ codiff net/ipv6/addrconf.o net/ipv6/addrconf.o.new net/ipv6/addrconf.c: addrconf_notify | -267 1 function changed, 267 bytes removed net/ipv6/addrconf.c: add_addr | +86 1 function changed, 86 bytes added net/ipv6/addrconf.o.new: 2 functions changed, 86 bytes added, 267 bytes removed, diff: -181 Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:48:01 -08:00
ipv6: prevent race between address creation and removal There's a race in IPv6 automatic addess assignment. The address is created with zero lifetime when it's added to various address lists. Before it gets assigned the correct lifetime, there's a window where a new address may be configured. This causes the semi-initiated address to be deleted in addrconf_verify. This was discovered as a reference leak caused by concurrent run of __ipv6_ifa_notify for both RTM_NEWADDR and RTM_DELADDR with the same address. Fix this by setting the lifetime before the address is added to inet6_addr_lst. A few notes: 1. In addrconf_prefix_rcv, by setting update_lft to zero, the if (update_lft) { ... } condition is no longer executed for newly created addresses. This is okay, as the ifp fields are set in ipv6_add_addr now and ipv6_ifa_notify is called (and has been called) through addrconf_dad_start. 2. The removal of the whole block under ifp->lock in inet6_addr_add is okay, too, as tstamp is initialized to jiffies in ipv6_add_addr. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-01 10:41:28 +02:00
ipv6: add link-local, sit and loopback address with INFINITY_LIFE_TIME In the past the IFA_PERMANENT flag indicated, that the valid and preferred lifetime where ignored. Since change fad8da3e085ddf ("ipv6 addrconf: fix preferred lifetime state-changing behavior while valid_lft is infinity") we honour at least the preferred lifetime on those addresses. As such the valid lifetime gets recalculated and updated to 0. If loopback address is added manually this problem does not occur. Also if NetworkManager manages IPv6, those addresses will get added via inet6_rtm_newaddr and thus will have a correct lifetime, too. Reported-by: François-Xavier Le Bail <fx.lebail@yahoo.com> Reported-by: Damien Wyart <damien.wyart@gmail.com> Fixes: fad8da3e085ddf ("ipv6 addrconf: fix preferred lifetime state-changing behavior while valid_lft is infinity") Cc: Yasushi Asano <yasushi.asano@jp.fujitsu.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-08 15:43:22 +01:00
ipv6/addrconf: common code located $ codiff net/ipv6/addrconf.o net/ipv6/addrconf.o.new net/ipv6/addrconf.c: addrconf_notify | -267 1 function changed, 267 bytes removed net/ipv6/addrconf.c: add_addr | +86 1 function changed, 86 bytes added net/ipv6/addrconf.o.new: 2 functions changed, 86 bytes added, 267 bytes removed, diff: -181 Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:48:01 -08:00
ipv6: use IS_ENABLED() #if defined(CONFIG_FOO) || defined(CONFIG_FOO_MODULE) can be replaced by #if IS_ENABLED(CONFIG_FOO) Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-29 16:23:10 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS. Introduce per-net_device inlines: dev_net(), dev_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25 21:47:49 +09:00
sit: fix prefix length of ll and v4mapped addresses When the local IPv4 endpoint is wilcard (0.0.0.0), the prefix length is correctly set, ie 64 if the address is a link local one or 96 if the address is a v4 mapped one. But when the local endpoint is specified, the prefix length is set to 128 for both kind of address. This patch fix this wrong prefix length. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-14 13:51:05 +01:00
sit: link local routes are missing When a link local address was added to a sit interface, the corresponding route was not configured. This breaks routing protocols that use the link local address, like OSPFv3. To ease the code reading, I remove sit_route_add(), which only adds v4 mapped routes, and add this kind of route directly in sit_add_v4_addrs(). Thus link local and v4 mapped routes are configured in the same place. Reported-by: Li Hongjun <hongjun.li@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-14 13:51:06 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
sit: fix prefix length of ll and v4mapped addresses When the local IPv4 endpoint is wilcard (0.0.0.0), the prefix length is correctly set, ie 64 if the address is a link local one or 96 if the address is a v4 mapped one. But when the local endpoint is specified, the prefix length is set to 128 for both kind of address. This patch fix this wrong prefix length. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-14 13:51:05 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
sit: fix prefix length of ll and v4mapped addresses When the local IPv4 endpoint is wilcard (0.0.0.0), the prefix length is correctly set, ie 64 if the address is a link local one or 96 if the address is a v4 mapped one. But when the local endpoint is specified, the prefix length is set to 128 for both kind of address. This patch fix this wrong prefix length. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-14 13:51:05 +01:00
sit: link local routes are missing When a link local address was added to a sit interface, the corresponding route was not configured. This breaks routing protocols that use the link local address, like OSPFv3. To ease the code reading, I remove sit_route_add(), which only adds v4 mapped routes, and add this kind of route directly in sit_add_v4_addrs(). Thus link local and v4 mapped routes are configured in the same place. Reported-by: Li Hongjun <hongjun.li@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-14 13:51:06 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
sit: fix prefix length of ll and v4mapped addresses When the local IPv4 endpoint is wilcard (0.0.0.0), the prefix length is correctly set, ie 64 if the address is a link local one or 96 if the address is a v4 mapped one. But when the local endpoint is specified, the prefix length is set to 128 for both kind of address. This patch fix this wrong prefix length. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-14 13:51:05 +01:00
sit: link local routes are missing When a link local address was added to a sit interface, the corresponding route was not configured. This breaks routing protocols that use the link local address, like OSPFv3. To ease the code reading, I remove sit_route_add(), which only adds v4 mapped routes, and add this kind of route directly in sit_add_v4_addrs(). Thus link local and v4 mapped routes are configured in the same place. Reported-by: Li Hongjun <hongjun.li@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-14 13:51:06 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETNS][IPV6] addrconf - make addrconf per namespace All the infrastructure to propagate the network namespace information is ready. Make use of it. There is a special case here between the initial network namespace and the other namespaces: * When ipv6 is initialized at boot time (aka in the init_net), it registers to the notifier callback. So addrconf_notify will be called as many time as there are network devices setup on the system and the function will add ipv6 addresses to the network devices. But the first device which needs to have its ipv6 address setup is the loopback, unfortunatly this is not the case. So the loopback address is setup manually in the ipv6 init function. * With the network namespace, this ordering problem does not appears because notifier is already setup and active, so as soon as we register the loopback the ipv6 address is setup and it will be the first device. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-05 10:47:47 -08:00
net/ipv6/addrconf.c: Checkpatch cleanups net/ipv6/addrconf.c:340: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable net/ipv6/addrconf.c:342: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:444: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:1337: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable net/ipv6/addrconf.c:1526: ERROR: "(foo*)" should be "(foo *)" net/ipv6/addrconf.c:1671: ERROR: open brace '{' following function declarations go on the next line net/ipv6/addrconf.c:1914: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2368: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2370: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2416: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2437: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2573: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:3797: ERROR: "foo* bar" should be "foo *bar" Signed-off-by: Eldad Zack <eldad@fogrefinery.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-01 07:49:08 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net/ipv6/addrconf.c: Checkpatch cleanups net/ipv6/addrconf.c:340: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable net/ipv6/addrconf.c:342: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:444: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:1337: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable net/ipv6/addrconf.c:1526: ERROR: "(foo*)" should be "(foo *)" net/ipv6/addrconf.c:1671: ERROR: open brace '{' following function declarations go on the next line net/ipv6/addrconf.c:1914: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2368: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2370: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2416: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2437: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2573: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:3797: ERROR: "foo* bar" should be "foo *bar" Signed-off-by: Eldad Zack <eldad@fogrefinery.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-01 07:49:08 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6/addrconf: common code located $ codiff net/ipv6/addrconf.o net/ipv6/addrconf.o.new net/ipv6/addrconf.c: addrconf_notify | -267 1 function changed, 267 bytes removed net/ipv6/addrconf.c: add_addr | +86 1 function changed, 86 bytes added net/ipv6/addrconf.o.new: 2 functions changed, 86 bytes added, 267 bytes removed, diff: -181 Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:48:01 -08:00
sit: link local routes are missing When a link local address was added to a sit interface, the corresponding route was not configured. This breaks routing protocols that use the link local address, like OSPFv3. To ease the code reading, I remove sit_route_add(), which only adds v4 mapped routes, and add this kind of route directly in sit_add_v4_addrs(). Thus link local and v4 mapped routes are configured in the same place. Reported-by: Li Hongjun <hongjun.li@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-14 13:51:06 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Seperate sit driver to extra module (addrconf.c changes) This patch contains the changes to net/ipv6/addrconf.c to remove sit specific code if the sit driver is not selected. Signed-off-by: Joerg Roedel <joro-lkml@zlug.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-10 14:49:53 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net IPv6 : Fix broken IPv6 routing table after loopback down-up IPv6 Routing table becomes broken once we do ifdown, ifup of the loopback(lo) interface. After down-up, routes of other interface's IPv6 addresses through 'lo' are lost. IPv6 addresses assigned to all interfaces are routed through 'lo' for internal communication. Once 'lo' is down, those routing entries are removed from routing table. But those removed entries are not being re-created properly when 'lo' is brought up. So IPv6 addresses of other interfaces becomes unreachable from the same machine. Also this breaks communication with other machines because of NDISC packet processing failure. This patch fixes this issue by reading all interface's IPv6 addresses and adding them to IPv6 routing table while bringing up 'lo'. ==Testing== Before applying the patch: $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ sudo ifdown lo $ sudo ifup lo $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ After applying the patch: $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ sudo ifdown lo $ sudo ifup lo $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ Signed-off-by: Balakumaran Kannan <Balakumaran.Kannan@ap.sony.com> Signed-off-by: Maruthi Thotad <Maruthi.Thotad@ap.sony.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-02 16:15:05 +05:30
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: coding style improvements (remove assignment in if statements) This change has no functional impact and simply addresses some coding style issues detected by checkpatch. Specifically this change adjusts "if" statements which also include the assignment of a variable. No changes to the resultant object files result as determined by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-23 21:28:43 +00:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
net: ipv4 and ipv6: Convert printk(KERN_DEBUG to pr_debug Use the current debugging style and enable dynamic_debug. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-15 14:11:54 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6/addrconf: common code located $ codiff net/ipv6/addrconf.o net/ipv6/addrconf.o.new net/ipv6/addrconf.c: addrconf_notify | -267 1 function changed, 267 bytes removed net/ipv6/addrconf.c: add_addr | +86 1 function changed, 86 bytes added net/ipv6/addrconf.o.new: 2 functions changed, 86 bytes added, 267 bytes removed, diff: -181 Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-06 23:48:01 -08:00
net IPv6 : Fix broken IPv6 routing table after loopback down-up IPv6 Routing table becomes broken once we do ifdown, ifup of the loopback(lo) interface. After down-up, routes of other interface's IPv6 addresses through 'lo' are lost. IPv6 addresses assigned to all interfaces are routed through 'lo' for internal communication. Once 'lo' is down, those routing entries are removed from routing table. But those removed entries are not being re-created properly when 'lo' is brought up. So IPv6 addresses of other interfaces becomes unreachable from the same machine. Also this breaks communication with other machines because of NDISC packet processing failure. This patch fixes this issue by reading all interface's IPv6 addresses and adding them to IPv6 routing table while bringing up 'lo'. ==Testing== Before applying the patch: $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ sudo ifdown lo $ sudo ifup lo $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ After applying the patch: $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ sudo ifdown lo $ sudo ifup lo $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ Signed-off-by: Balakumaran Kannan <Balakumaran.Kannan@ap.sony.com> Signed-off-by: Maruthi Thotad <Maruthi.Thotad@ap.sony.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-02 16:15:05 +05:30
ipv6: reallocate addrconf router for ipv6 address when lo device up commit 25fb6ca4ed9cad72f14f61629b68dc03c0d9713f "net IPv6 : Fix broken IPv6 routing table after loopback down-up" allocates addrconf router for ipv6 address when lo device up. but commit a881ae1f625c599b460cc8f8a7fcb1c438f699ad "ipv6:don't call addrconf_dst_alloc again when enable lo" breaks this behavior. Since the addrconf router is moved to the garbage list when lo device down, we should release this router and rellocate a new one for ipv6 address when lo device up. This patch solves bug 67951 on bugzilla https://bugzilla.kernel.org/show_bug.cgi?id=67951 change from v1: use ip6_rt_put to repleace ip6_del_rt, thanks Hannes! change code style, suggested by Sergei. CC: Sabrina Dubroca <sd@queasysnail.net> CC: Hannes Frederic Sowa <hannes@stressinduktion.org> Reported-by: Weilong Chen <chenweilong@huawei.com> Signed-off-by: Weilong Chen <chenweilong@huawei.com> Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-24 16:29:11 +08:00
ipv6: don't call addrconf_dst_alloc again when enable lo If we disable all of the net interfaces, and enable un-lo interface before lo interface, we already allocated the addrconf dst in ipv6_add_addr. So we shouldn't allocate it again when we enable lo interface. Otherwise the message below will be triggered. unregister_netdevice: waiting for sit1 to become free. Usage count = 1 This problem is introduced by commit 25fb6ca4ed9cad72f14f61629b68dc03c0d9713f "net IPv6 : Fix broken IPv6 routing table after loopback down-up" Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-16 11:14:30 +08:00
ipv6: fix third arg of anycast_dst_alloc(), must be bool. Signed-off-by: Francois-Xavier Le Bail <fx.lebail@yahoo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-02 11:28:49 +01:00
net IPv6 : Fix broken IPv6 routing table after loopback down-up IPv6 Routing table becomes broken once we do ifdown, ifup of the loopback(lo) interface. After down-up, routes of other interface's IPv6 addresses through 'lo' are lost. IPv6 addresses assigned to all interfaces are routed through 'lo' for internal communication. Once 'lo' is down, those routing entries are removed from routing table. But those removed entries are not being re-created properly when 'lo' is brought up. So IPv6 addresses of other interfaces becomes unreachable from the same machine. Also this breaks communication with other machines because of NDISC packet processing failure. This patch fixes this issue by reading all interface's IPv6 addresses and adding them to IPv6 routing table while bringing up 'lo'. ==Testing== Before applying the patch: $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ sudo ifdown lo $ sudo ifup lo $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ After applying the patch: $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ sudo ifdown lo $ sudo ifup lo $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ Signed-off-by: Balakumaran Kannan <Balakumaran.Kannan@ap.sony.com> Signed-off-by: Maruthi Thotad <Maruthi.Thotad@ap.sony.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-02 16:15:05 +05:30
ipv6: assign rt6_info to inet6_ifaddr in init_loopback Commit 25fb6ca4ed9cad72f14f61629b68dc03c0d9713f "net IPv6 : Fix broken IPv6 routing table after loopback down-up" forgot to assign rt6_info to the inet6_ifaddr. When disable the net device, the rt6_info which allocated in init_loopback will not be destroied in __ipv6_ifa_notify. This will trigger the waring message below [23527.916091] unregister_netdevice: waiting for tap0 to become free. Usage count = 1 Reported-by: Arkadiusz Miskiewicz <a.miskiewicz@gmail.com> Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-02 22:16:21 +00:00
net IPv6 : Fix broken IPv6 routing table after loopback down-up IPv6 Routing table becomes broken once we do ifdown, ifup of the loopback(lo) interface. After down-up, routes of other interface's IPv6 addresses through 'lo' are lost. IPv6 addresses assigned to all interfaces are routed through 'lo' for internal communication. Once 'lo' is down, those routing entries are removed from routing table. But those removed entries are not being re-created properly when 'lo' is brought up. So IPv6 addresses of other interfaces becomes unreachable from the same machine. Also this breaks communication with other machines because of NDISC packet processing failure. This patch fixes this issue by reading all interface's IPv6 addresses and adding them to IPv6 routing table while bringing up 'lo'. ==Testing== Before applying the patch: $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ sudo ifdown lo $ sudo ifup lo $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ After applying the patch: $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ sudo ifdown lo $ sudo ifup lo $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ Signed-off-by: Balakumaran Kannan <Balakumaran.Kannan@ap.sony.com> Signed-off-by: Maruthi Thotad <Maruthi.Thotad@ap.sony.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-02 16:15:05 +05:30
ipv6: assign rt6_info to inet6_ifaddr in init_loopback Commit 25fb6ca4ed9cad72f14f61629b68dc03c0d9713f "net IPv6 : Fix broken IPv6 routing table after loopback down-up" forgot to assign rt6_info to the inet6_ifaddr. When disable the net device, the rt6_info which allocated in init_loopback will not be destroied in __ipv6_ifa_notify. This will trigger the waring message below [23527.916091] unregister_netdevice: waiting for tap0 to become free. Usage count = 1 Reported-by: Arkadiusz Miskiewicz <a.miskiewicz@gmail.com> Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-02 22:16:21 +00:00
net IPv6 : Fix broken IPv6 routing table after loopback down-up IPv6 Routing table becomes broken once we do ifdown, ifup of the loopback(lo) interface. After down-up, routes of other interface's IPv6 addresses through 'lo' are lost. IPv6 addresses assigned to all interfaces are routed through 'lo' for internal communication. Once 'lo' is down, those routing entries are removed from routing table. But those removed entries are not being re-created properly when 'lo' is brought up. So IPv6 addresses of other interfaces becomes unreachable from the same machine. Also this breaks communication with other machines because of NDISC packet processing failure. This patch fixes this issue by reading all interface's IPv6 addresses and adding them to IPv6 routing table while bringing up 'lo'. ==Testing== Before applying the patch: $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ sudo ifdown lo $ sudo ifup lo $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ After applying the patch: $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ sudo ifdown lo $ sudo ifup lo $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ Signed-off-by: Balakumaran Kannan <Balakumaran.Kannan@ap.sony.com> Signed-off-by: Maruthi Thotad <Maruthi.Thotad@ap.sony.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-02 16:15:05 +05:30
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: introduce IFA_F_STABLE_PRIVACY flag We need to mark appropriate addresses so we can do retries in case their DAD failed. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:02 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net/ipv6/addrconf.c: Checkpatch cleanups net/ipv6/addrconf.c:340: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable net/ipv6/addrconf.c:342: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:444: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:1337: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable net/ipv6/addrconf.c:1526: ERROR: "(foo*)" should be "(foo *)" net/ipv6/addrconf.c:1671: ERROR: open brace '{' following function declarations go on the next line net/ipv6/addrconf.c:1914: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2368: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2370: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2416: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2437: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2573: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:3797: ERROR: "foo* bar" should be "foo *bar" Signed-off-by: Eldad Zack <eldad@fogrefinery.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-01 07:49:08 +00:00
ipv6: introduce IFA_F_STABLE_PRIVACY flag We need to mark appropriate addresses so we can do retries in case their DAD failed. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:02 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
ipv6: Fix warning in addrconf code. Reported by Linus. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20 18:17:02 -07:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
ipv6: add link-local, sit and loopback address with INFINITY_LIFE_TIME In the past the IFA_PERMANENT flag indicated, that the valid and preferred lifetime where ignored. Since change fad8da3e085ddf ("ipv6 addrconf: fix preferred lifetime state-changing behavior while valid_lft is infinity") we honour at least the preferred lifetime on those addresses. As such the valid lifetime gets recalculated and updated to 0. If loopback address is added manually this problem does not occur. Also if NetworkManager manages IPv6, those addresses will get added via inet6_rtm_newaddr and thus will have a correct lifetime, too. Reported-by: François-Xavier Le Bail <fx.lebail@yahoo.com> Reported-by: Damien Wyart <damien.wyart@gmail.com> Fixes: fad8da3e085ddf ("ipv6 addrconf: fix preferred lifetime state-changing behavior while valid_lft is infinity") Cc: Yasushi Asano <yasushi.asano@jp.fujitsu.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-08 15:43:22 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Manage prefix route corresponding to address manually added. It is more natural to manage prefix routes corresponding to address which is being added manually. With help from Masafumi Aramoto <aramoto@linux-ipv6.org>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2007-02-07 20:36:26 +09:00
ipv6: Remove unused argument to addrconf_dad_start(). Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-14 21:37:40 -04:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: generation of stable privacy addresses for link-local and autoconf This patch implements the stable privacy address generation for link-local and autoconf addresses as specified in RFC7217. RID = F(Prefix, Net_Iface, Network_ID, DAD_Counter, secret_key) is the RID (random identifier). As the hash function F we chose one round of sha1. Prefix will be either the link-local prefix or the router advertised one. As Net_Iface we use the MAC address of the device. DAD_Counter and secret_key are implemented as specified. We don't use Network_ID, as it couples the code too closely to other subsystems. It is specified as optional in the RFC. As Net_Iface we only use the MAC address: we simply have no stable identifier in the kernel we could possibly use: because this code might run very early, we cannot depend on names, as they might be changed by user space early on during the boot process. A new address generation mode is introduced, IN6_ADDR_GEN_MODE_STABLE_PRIVACY. With iproute2 one can switch back to none or eui64 address configuration mode although the stable_secret is already set. We refuse writes to ipv6/conf/all/stable_secret but only allow ipv6/conf/default/stable_secret and the interface specific file to be written to. The default stable_secret is used as the parameter for the namespace, the interface specific can overwrite the secret, e.g. when switching a network configuration from one system to another while inheriting the secret. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:01 +01:00
ipv6: fix sparse warnings in privacy stable addresses generation Those warnings reported by sparse endianness check (via kbuild test robot) are harmless, nevertheless fix them up and make the code a little bit easier to read. Reported-by: kbuild test robot <fengguang.wu@intel.com> Fixes: 622c81d57b392cc ("ipv6: generation of stable privacy addresses for link-local and autoconf") Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-24 11:05:28 +01:00
ipv6: generation of stable privacy addresses for link-local and autoconf This patch implements the stable privacy address generation for link-local and autoconf addresses as specified in RFC7217. RID = F(Prefix, Net_Iface, Network_ID, DAD_Counter, secret_key) is the RID (random identifier). As the hash function F we chose one round of sha1. Prefix will be either the link-local prefix or the router advertised one. As Net_Iface we use the MAC address of the device. DAD_Counter and secret_key are implemented as specified. We don't use Network_ID, as it couples the code too closely to other subsystems. It is specified as optional in the RFC. As Net_Iface we only use the MAC address: we simply have no stable identifier in the kernel we could possibly use: because this code might run very early, we cannot depend on names, as they might be changed by user space early on during the boot process. A new address generation mode is introduced, IN6_ADDR_GEN_MODE_STABLE_PRIVACY. With iproute2 one can switch back to none or eui64 address configuration mode although the stable_secret is already set. We refuse writes to ipv6/conf/all/stable_secret but only allow ipv6/conf/default/stable_secret and the interface specific file to be written to. The default stable_secret is used as the parameter for the namespace, the interface specific can overwrite the secret, e.g. when switching a network configuration from one system to another while inheriting the secret. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:01 +01:00
ipv6: fix sparse warnings in privacy stable addresses generation Those warnings reported by sparse endianness check (via kbuild test robot) are harmless, nevertheless fix them up and make the code a little bit easier to read. Reported-by: kbuild test robot <fengguang.wu@intel.com> Fixes: 622c81d57b392cc ("ipv6: generation of stable privacy addresses for link-local and autoconf") Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-24 11:05:28 +01:00
ipv6: generation of stable privacy addresses for link-local and autoconf This patch implements the stable privacy address generation for link-local and autoconf addresses as specified in RFC7217. RID = F(Prefix, Net_Iface, Network_ID, DAD_Counter, secret_key) is the RID (random identifier). As the hash function F we chose one round of sha1. Prefix will be either the link-local prefix or the router advertised one. As Net_Iface we use the MAC address of the device. DAD_Counter and secret_key are implemented as specified. We don't use Network_ID, as it couples the code too closely to other subsystems. It is specified as optional in the RFC. As Net_Iface we only use the MAC address: we simply have no stable identifier in the kernel we could possibly use: because this code might run very early, we cannot depend on names, as they might be changed by user space early on during the boot process. A new address generation mode is introduced, IN6_ADDR_GEN_MODE_STABLE_PRIVACY. With iproute2 one can switch back to none or eui64 address configuration mode although the stable_secret is already set. We refuse writes to ipv6/conf/all/stable_secret but only allow ipv6/conf/default/stable_secret and the interface specific file to be written to. The default stable_secret is used as the parameter for the namespace, the interface specific can overwrite the secret, e.g. when switching a network configuration from one system to another while inheriting the secret. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:01 +01:00
ipv6: fix sparse warnings in privacy stable addresses generation Those warnings reported by sparse endianness check (via kbuild test robot) are harmless, nevertheless fix them up and make the code a little bit easier to read. Reported-by: kbuild test robot <fengguang.wu@intel.com> Fixes: 622c81d57b392cc ("ipv6: generation of stable privacy addresses for link-local and autoconf") Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-24 11:05:28 +01:00
ipv6: generation of stable privacy addresses for link-local and autoconf This patch implements the stable privacy address generation for link-local and autoconf addresses as specified in RFC7217. RID = F(Prefix, Net_Iface, Network_ID, DAD_Counter, secret_key) is the RID (random identifier). As the hash function F we chose one round of sha1. Prefix will be either the link-local prefix or the router advertised one. As Net_Iface we use the MAC address of the device. DAD_Counter and secret_key are implemented as specified. We don't use Network_ID, as it couples the code too closely to other subsystems. It is specified as optional in the RFC. As Net_Iface we only use the MAC address: we simply have no stable identifier in the kernel we could possibly use: because this code might run very early, we cannot depend on names, as they might be changed by user space early on during the boot process. A new address generation mode is introduced, IN6_ADDR_GEN_MODE_STABLE_PRIVACY. With iproute2 one can switch back to none or eui64 address configuration mode although the stable_secret is already set. We refuse writes to ipv6/conf/all/stable_secret but only allow ipv6/conf/default/stable_secret and the interface specific file to be written to. The default stable_secret is used as the parameter for the namespace, the interface specific can overwrite the secret, e.g. when switching a network configuration from one system to another while inheriting the secret. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:01 +01:00
ipv6: introduce idgen_delay and idgen_retries knobs This is specified by RFC 7217. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:05 +01:00
ipv6: generation of stable privacy addresses for link-local and autoconf This patch implements the stable privacy address generation for link-local and autoconf addresses as specified in RFC7217. RID = F(Prefix, Net_Iface, Network_ID, DAD_Counter, secret_key) is the RID (random identifier). As the hash function F we chose one round of sha1. Prefix will be either the link-local prefix or the router advertised one. As Net_Iface we use the MAC address of the device. DAD_Counter and secret_key are implemented as specified. We don't use Network_ID, as it couples the code too closely to other subsystems. It is specified as optional in the RFC. As Net_Iface we only use the MAC address: we simply have no stable identifier in the kernel we could possibly use: because this code might run very early, we cannot depend on names, as they might be changed by user space early on during the boot process. A new address generation mode is introduced, IN6_ADDR_GEN_MODE_STABLE_PRIVACY. With iproute2 one can switch back to none or eui64 address configuration mode although the stable_secret is already set. We refuse writes to ipv6/conf/all/stable_secret but only allow ipv6/conf/default/stable_secret and the interface specific file to be written to. The default stable_secret is used as the parameter for the namespace, the interface specific can overwrite the secret, e.g. when switching a network configuration from one system to another while inheriting the secret. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:01 +01:00
ipv6: addrconf: implement address generation modes This patch introduces a possibility for userspace to set various (so far two) modes of generating addresses. This is useful for example for NetworkManager because it can set the mode to NONE and take care of link local addresses itself. That allow it to have the interface up, monitoring carrier but still don't have any addresses on it. One more use-case by Dan Williams: <quote> WWAN devices often have their LL address provided by the firmware of the device, which sometimes refuses to respond to incorrect LL addresses when doing DHCPv6 or IPv6 ND. The kernel cannot generate the correct LL address for two reasons: 1) WWAN pseudo-ethernet interfaces often construct a fake MAC address, or read a meaningless MAC address from the firmware. Thus the EUI64 and the IPv6LL address the kernel assigns will be wrong. The real LL address is often retrieved from the firmware with AT or proprietary commands. 2) WWAN PPP interfaces receive their LL address from IPV6CP, not from kernel assignments. Only after IPV6CP has completed do we know the LL address of the PPP interface and its peer. But the kernel has already assigned an incorrect LL address to the interface. So being able to suppress the kernel LL address generation and assign the one retrieved from the firmware is less complicated and more robust. </quote> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-11 21:10:18 +02:00
ipv6: generation of stable privacy addresses for link-local and autoconf This patch implements the stable privacy address generation for link-local and autoconf addresses as specified in RFC7217. RID = F(Prefix, Net_Iface, Network_ID, DAD_Counter, secret_key) is the RID (random identifier). As the hash function F we chose one round of sha1. Prefix will be either the link-local prefix or the router advertised one. As Net_Iface we use the MAC address of the device. DAD_Counter and secret_key are implemented as specified. We don't use Network_ID, as it couples the code too closely to other subsystems. It is specified as optional in the RFC. As Net_Iface we only use the MAC address: we simply have no stable identifier in the kernel we could possibly use: because this code might run very early, we cannot depend on names, as they might be changed by user space early on during the boot process. A new address generation mode is introduced, IN6_ADDR_GEN_MODE_STABLE_PRIVACY. With iproute2 one can switch back to none or eui64 address configuration mode although the stable_secret is already set. We refuse writes to ipv6/conf/all/stable_secret but only allow ipv6/conf/default/stable_secret and the interface specific file to be written to. The default stable_secret is used as the parameter for the namespace, the interface specific can overwrite the secret, e.g. when switching a network configuration from one system to another while inheriting the secret. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:01 +01:00
ipv6: addrconf: implement address generation modes This patch introduces a possibility for userspace to set various (so far two) modes of generating addresses. This is useful for example for NetworkManager because it can set the mode to NONE and take care of link local addresses itself. That allow it to have the interface up, monitoring carrier but still don't have any addresses on it. One more use-case by Dan Williams: <quote> WWAN devices often have their LL address provided by the firmware of the device, which sometimes refuses to respond to incorrect LL addresses when doing DHCPv6 or IPv6 ND. The kernel cannot generate the correct LL address for two reasons: 1) WWAN pseudo-ethernet interfaces often construct a fake MAC address, or read a meaningless MAC address from the firmware. Thus the EUI64 and the IPv6LL address the kernel assigns will be wrong. The real LL address is often retrieved from the firmware with AT or proprietary commands. 2) WWAN PPP interfaces receive their LL address from IPV6CP, not from kernel assignments. Only after IPV6CP has completed do we know the LL address of the PPP interface and its peer. But the kernel has already assigned an incorrect LL address to the interface. So being able to suppress the kernel LL address generation and assign the one retrieved from the firmware is less complicated and more robust. </quote> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-11 21:10:18 +02:00
net: Add VRF support to IPv6 stack As with IPv4 support for VRFs added to IPv6 stack by replacing hardcoded table ids with possibly device specific ones and manipulating the oif in the flowi6. The flow flags are used to skip oif compare in nexthop lookups if the device is enslaved to a VRF via the L3 master device. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-12 11:47:10 -07:00
ipv6: generation of stable privacy addresses for link-local and autoconf This patch implements the stable privacy address generation for link-local and autoconf addresses as specified in RFC7217. RID = F(Prefix, Net_Iface, Network_ID, DAD_Counter, secret_key) is the RID (random identifier). As the hash function F we chose one round of sha1. Prefix will be either the link-local prefix or the router advertised one. As Net_Iface we use the MAC address of the device. DAD_Counter and secret_key are implemented as specified. We don't use Network_ID, as it couples the code too closely to other subsystems. It is specified as optional in the RFC. As Net_Iface we only use the MAC address: we simply have no stable identifier in the kernel we could possibly use: because this code might run very early, we cannot depend on names, as they might be changed by user space early on during the boot process. A new address generation mode is introduced, IN6_ADDR_GEN_MODE_STABLE_PRIVACY. With iproute2 one can switch back to none or eui64 address configuration mode although the stable_secret is already set. We refuse writes to ipv6/conf/all/stable_secret but only allow ipv6/conf/default/stable_secret and the interface specific file to be written to. The default stable_secret is used as the parameter for the namespace, the interface specific can overwrite the secret, e.g. when switching a network configuration from one system to another while inheriting the secret. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:01 +01:00
ipv6: introduce IFA_F_STABLE_PRIVACY flag We need to mark appropriate addresses so we can do retries in case their DAD failed. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:02 +01:00
ipv6: generation of stable privacy addresses for link-local and autoconf This patch implements the stable privacy address generation for link-local and autoconf addresses as specified in RFC7217. RID = F(Prefix, Net_Iface, Network_ID, DAD_Counter, secret_key) is the RID (random identifier). As the hash function F we chose one round of sha1. Prefix will be either the link-local prefix or the router advertised one. As Net_Iface we use the MAC address of the device. DAD_Counter and secret_key are implemented as specified. We don't use Network_ID, as it couples the code too closely to other subsystems. It is specified as optional in the RFC. As Net_Iface we only use the MAC address: we simply have no stable identifier in the kernel we could possibly use: because this code might run very early, we cannot depend on names, as they might be changed by user space early on during the boot process. A new address generation mode is introduced, IN6_ADDR_GEN_MODE_STABLE_PRIVACY. With iproute2 one can switch back to none or eui64 address configuration mode although the stable_secret is already set. We refuse writes to ipv6/conf/all/stable_secret but only allow ipv6/conf/default/stable_secret and the interface specific file to be written to. The default stable_secret is used as the parameter for the namespace, the interface specific can overwrite the secret, e.g. when switching a network configuration from one system to another while inheriting the secret. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:01 +01:00
ipv6: addrconf: implement address generation modes This patch introduces a possibility for userspace to set various (so far two) modes of generating addresses. This is useful for example for NetworkManager because it can set the mode to NONE and take care of link local addresses itself. That allow it to have the interface up, monitoring carrier but still don't have any addresses on it. One more use-case by Dan Williams: <quote> WWAN devices often have their LL address provided by the firmware of the device, which sometimes refuses to respond to incorrect LL addresses when doing DHCPv6 or IPv6 ND. The kernel cannot generate the correct LL address for two reasons: 1) WWAN pseudo-ethernet interfaces often construct a fake MAC address, or read a meaningless MAC address from the firmware. Thus the EUI64 and the IPv6LL address the kernel assigns will be wrong. The real LL address is often retrieved from the firmware with AT or proprietary commands. 2) WWAN PPP interfaces receive their LL address from IPV6CP, not from kernel assignments. Only after IPV6CP has completed do we know the LL address of the PPP interface and its peer. But the kernel has already assigned an incorrect LL address to the interface. So being able to suppress the kernel LL address generation and assign the one retrieved from the firmware is less complicated and more robust. </quote> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-11 21:10:18 +02:00
ipv6: introduce IFA_F_STABLE_PRIVACY flag We need to mark appropriate addresses so we can do retries in case their DAD failed. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:02 +01:00
ipv6: addrconf: implement address generation modes This patch introduces a possibility for userspace to set various (so far two) modes of generating addresses. This is useful for example for NetworkManager because it can set the mode to NONE and take care of link local addresses itself. That allow it to have the interface up, monitoring carrier but still don't have any addresses on it. One more use-case by Dan Williams: <quote> WWAN devices often have their LL address provided by the firmware of the device, which sometimes refuses to respond to incorrect LL addresses when doing DHCPv6 or IPv6 ND. The kernel cannot generate the correct LL address for two reasons: 1) WWAN pseudo-ethernet interfaces often construct a fake MAC address, or read a meaningless MAC address from the firmware. Thus the EUI64 and the IPv6LL address the kernel assigns will be wrong. The real LL address is often retrieved from the firmware with AT or proprietary commands. 2) WWAN PPP interfaces receive their LL address from IPV6CP, not from kernel assignments. Only after IPV6CP has completed do we know the LL address of the PPP interface and its peer. But the kernel has already assigned an incorrect LL address to the interface. So being able to suppress the kernel LL address generation and assign the one retrieved from the firmware is less complicated and more robust. </quote> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-11 21:10:18 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net/ipv6/addrconf.c: Checkpatch cleanups net/ipv6/addrconf.c:340: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable net/ipv6/addrconf.c:342: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:444: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:1337: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable net/ipv6/addrconf.c:1526: ERROR: "(foo*)" should be "(foo *)" net/ipv6/addrconf.c:1671: ERROR: open brace '{' following function declarations go on the next line net/ipv6/addrconf.c:1914: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2368: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2370: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2416: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2437: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:2573: ERROR: "foo * bar" should be "foo *bar" net/ipv6/addrconf.c:3797: ERROR: "foo* bar" should be "foo *bar" Signed-off-by: Eldad Zack <eldad@fogrefinery.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-01 07:49:08 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] addrconf: Fix IPv6 on tuntap tunnels The recent patch that added ipv6_hwtype is broken on tuntap tunnels. Indeed, it's broken on any device that does not pass the ipv6_hwtype test. The reason is that the original test only applies to autoconfiguration, not IPv6 support. IPv6 support is allowed on any device. In fact, even with the ipv6_hwtype patch applied you can still add IPv6 addresses to any interface that doesn't pass thw ipv6_hwtype test provided that they have a sufficiently large MTU. This is a serious problem because come deregistration time these devices won't be cleaned up properly. I've gone back and looked at the rationale for the patch. It appears that the real problem is that we were creating IPv6 devices even if the MTU was too small. So here's a patch which fixes that and reverts the ipv6_hwtype stuff. Thanks to Kanru Chen for reporting this issue. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-14 13:02:55 -07:00
6lowpan: IPv6 link local address According to the RFC4944 (Transmission of IPv6 Packets over IEEE 802.15.4 Networks), chapter 7: The IPv6 link-local address [RFC4291] for an IEEE 802.15.4 interface is formed by appending the Interface Identifier, as defined above, to the prefix FE80::/64. 10 bits 54 bits 64 bits +----------+-----------------------+----------------------------+ |1111111010| (zeros) | Interface Identifier | +----------+-----------------------+----------------------------+ This patch adds IPv6 address generation support for the 6lowpan interfaces. Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-10 03:25:52 +00:00
firewire net, ipv6: IPv6 over Firewire (RFC3146) support. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-25 08:26:24 +00:00
ip6_tunnel: ensure to always have a link local address When an Xin6 tunnel is set up, we check other netdevices to inherit the link- local address. If none is available, the interface will not have any link-local address. RFC4862 expects that each interface has a link local address. Now than this kind of tunnels supports x-netns, it's easy to fall in this case (by creating the tunnel in a netns where ethernet interfaces stand and then moving it to a other netns where no ethernet interface is available). RFC4291, Appendix A suggests two methods: the first is the one currently implemented, the second is to generate a unique identifier, so that we can always generate the link-local address. Let's use eth_random_addr() to generate this interface indentifier. I remove completly the previous method, hence for the whole life of the interface, the link-local address remains the same (previously, it depends on which ethernet interfaces were up when the tunnel interface was set up). Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-20 12:16:06 +02:00
ipv6: Add checks for 6LOWPAN ARP type Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2013-12-11 17:05:36 +02:00
[IPV6] addrconf: Fix IPv6 on tuntap tunnels The recent patch that added ipv6_hwtype is broken on tuntap tunnels. Indeed, it's broken on any device that does not pass the ipv6_hwtype test. The reason is that the original test only applies to autoconfiguration, not IPv6 support. IPv6 support is allowed on any device. In fact, even with the ipv6_hwtype patch applied you can still add IPv6 addresses to any interface that doesn't pass thw ipv6_hwtype test provided that they have a sufficiently large MTU. This is a serious problem because come deregistration time these devices won't be cleaned up properly. I've gone back and looked at the rationale for the patch. It appears that the real problem is that we were creating IPv6 devices even if the MTU was too small. So here's a patch which fixes that and reverts the ipv6_hwtype stuff. Thanks to Kanru Chen for reporting this issue. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-14 13:02:55 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Don't add routes to ipv6 disabled interfaces. If the interface has IPv6 disabled, don't add a multicast or link-local route since we won't be adding a link-local address. Reported-by: Mahesh Kelkar <maheshkelkar@gmail.com> Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-20 10:34:30 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: addrconf: implement address generation modes This patch introduces a possibility for userspace to set various (so far two) modes of generating addresses. This is useful for example for NetworkManager because it can set the mode to NONE and take care of link local addresses itself. That allow it to have the interface up, monitoring carrier but still don't have any addresses on it. One more use-case by Dan Williams: <quote> WWAN devices often have their LL address provided by the firmware of the device, which sometimes refuses to respond to incorrect LL addresses when doing DHCPv6 or IPv6 ND. The kernel cannot generate the correct LL address for two reasons: 1) WWAN pseudo-ethernet interfaces often construct a fake MAC address, or read a meaningless MAC address from the firmware. Thus the EUI64 and the IPv6LL address the kernel assigns will be wrong. The real LL address is often retrieved from the firmware with AT or proprietary commands. 2) WWAN PPP interfaces receive their LL address from IPV6CP, not from kernel assignments. Only after IPV6CP has completed do we know the LL address of the PPP interface and its peer. But the kernel has already assigned an incorrect LL address to the interface. So being able to suppress the kernel LL address generation and assign the one retrieved from the firmware is less complicated and more robust. </quote> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-11 21:10:18 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: use IS_ENABLED() #if defined(CONFIG_FOO) || defined(CONFIG_FOO_MODULE) can be replaced by #if IS_ENABLED(CONFIG_FOO) Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-29 16:23:10 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: coding style improvements (remove assignment in if statements) This change has no functional impact and simply addresses some coding style issues detected by checkpatch. Specifically this change adjusts "if" statements which also include the assignment of a variable. No changes to the resultant object files result as determined by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-23 21:28:43 +00:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
net: ipv4 and ipv6: Convert printk(KERN_DEBUG to pr_debug Use the current debugging style and enable dynamic_debug. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-15 14:11:54 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Add RFC4214 support This patch includes support for the Intra-Site Automatic Tunnel Addressing Protocol (ISATAP) per RFC4214. It uses the SIT module, and is configured using extensions to the "iproute2" utility. The diffs are specific to the Linux 2.6.24-rc2 kernel distribution. This version includes the diff for ./include/linux/if.h which was missing in the v2.4 submission and is needed to make the patch compile. The patch has been installed, compiled and tested in a clean 2.6.24-rc2 kernel build area. Signed-off-by: Fred L. Templin <fred.l.templin@boeing.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-29 22:11:40 +11:00
ipv6: addrconf: implement address generation modes This patch introduces a possibility for userspace to set various (so far two) modes of generating addresses. This is useful for example for NetworkManager because it can set the mode to NONE and take care of link local addresses itself. That allow it to have the interface up, monitoring carrier but still don't have any addresses on it. One more use-case by Dan Williams: <quote> WWAN devices often have their LL address provided by the firmware of the device, which sometimes refuses to respond to incorrect LL addresses when doing DHCPv6 or IPv6 ND. The kernel cannot generate the correct LL address for two reasons: 1) WWAN pseudo-ethernet interfaces often construct a fake MAC address, or read a meaningless MAC address from the firmware. Thus the EUI64 and the IPv6LL address the kernel assigns will be wrong. The real LL address is often retrieved from the firmware with AT or proprietary commands. 2) WWAN PPP interfaces receive their LL address from IPV6CP, not from kernel assignments. Only after IPV6CP has completed do we know the LL address of the PPP interface and its peer. But the kernel has already assigned an incorrect LL address to the interface. So being able to suppress the kernel LL address generation and assign the one retrieved from the firmware is less complicated and more robust. </quote> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-11 21:10:18 +02:00
[IPV6]: Add RFC4214 support This patch includes support for the Intra-Site Automatic Tunnel Addressing Protocol (ISATAP) per RFC4214. It uses the SIT module, and is configured using extensions to the "iproute2" utility. The diffs are specific to the Linux 2.6.24-rc2 kernel distribution. This version includes the diff for ./include/linux/if.h which was missing in the v2.4 submission and is needed to make the patch compile. The patch has been installed, compiled and tested in a clean 2.6.24-rc2 kernel build area. Signed-off-by: Fred L. Templin <fred.l.templin@boeing.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-29 22:11:40 +11:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: don't add link local route when there is no link local address When an address is added on loopback (ip -6 a a 2002::1/128 dev lo), a route to fe80::/64 is added in the main table: unreachable fe80::/64 dev lo proto kernel metric 256 error -101 This route does not match any prefix (no fe80:: address on lo). In fact, addrconf_dev_config() will not add link local address because this function filters interfaces by type. If the link local address is added manually, the route to the link local prefix will be automatically added by addrconf_add_linklocal(). Note also, that this route is not deleted when the address is removed. After looking at the code, it seems that addrconf_add_lroute() is redundant with addrconf_add_linklocal(), because this function will add the link local route when the link local address is configured. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-01 23:19:14 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Seperate sit driver to extra module (addrconf.c changes) This patch contains the changes to net/ipv6/addrconf.c to remove sit specific code if the sit driver is not selected. Signed-off-by: Joerg Roedel <joro-lkml@zlug.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-10 14:49:53 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: use IS_ENABLED() #if defined(CONFIG_FOO) || defined(CONFIG_FOO_MODULE) can be replaced by #if IS_ENABLED(CONFIG_FOO) Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-29 16:23:10 +00:00
ipv6: generate link local address for GRE tunnel Use same logic as SIT tunnel to handle link local address for GRE tunnel. OSPFv3 requires link-local address to function. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-08 10:44:30 +00:00
ipv6: coding style improvements (remove assignment in if statements) This change has no functional impact and simply addresses some coding style issues detected by checkpatch. Specifically this change adjusts "if" statements which also include the assignment of a variable. No changes to the resultant object files result as determined by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-23 21:28:43 +00:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
net: ipv4 and ipv6: Convert printk(KERN_DEBUG to pr_debug Use the current debugging style and enable dynamic_debug. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-15 14:11:54 +00:00
ipv6: generate link local address for GRE tunnel Use same logic as SIT tunnel to handle link local address for GRE tunnel. OSPFv3 requires link-local address to function. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-08 10:44:30 +00:00
ipv6: addrconf: implement address generation modes This patch introduces a possibility for userspace to set various (so far two) modes of generating addresses. This is useful for example for NetworkManager because it can set the mode to NONE and take care of link local addresses itself. That allow it to have the interface up, monitoring carrier but still don't have any addresses on it. One more use-case by Dan Williams: <quote> WWAN devices often have their LL address provided by the firmware of the device, which sometimes refuses to respond to incorrect LL addresses when doing DHCPv6 or IPv6 ND. The kernel cannot generate the correct LL address for two reasons: 1) WWAN pseudo-ethernet interfaces often construct a fake MAC address, or read a meaningless MAC address from the firmware. Thus the EUI64 and the IPv6LL address the kernel assigns will be wrong. The real LL address is often retrieved from the firmware with AT or proprietary commands. 2) WWAN PPP interfaces receive their LL address from IPV6CP, not from kernel assignments. Only after IPV6CP has completed do we know the LL address of the PPP interface and its peer. But the kernel has already assigned an incorrect LL address to the interface. So being able to suppress the kernel LL address generation and assign the one retrieved from the firmware is less complicated and more robust. </quote> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-11 21:10:18 +02:00
ipv6: gre: setup default multicast routes over PtP links GRE point-to-point interfaces should also support ipv6 multicast. Setting up default multicast routes on interface creation was forgotten. Add it. Bugzilla: <https://bugzilla.kernel.org/show_bug.cgi?id=103231> Cc: Julien Muchembled <jm@jmuchemb.eu> Cc: Eric Dumazet <edumazet@google.com> Cc: Nicolas Dumazet <ndumazet@google.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-08 18:19:39 +02:00
ipv6: generate link local address for GRE tunnel Use same logic as SIT tunnel to handle link local address for GRE tunnel. OSPFv3 requires link-local address to function. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-08 10:44:30 +00:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
net: pass info struct via netdevice notifier So far, only net_device * could be passed along with netdevice notifier event. This patch provides a possibility to pass custom structure able to provide info that event listener needs to know. Signed-off-by: Jiri Pirko <jiri@resnulli.us> v2->v3: fix typo on simeth shortened dev_getter shortened notifier_info struct name v1->v2: fix notifier_call parameter in call_netdevice_notifier() Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-28 01:30:21 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: pass info struct via netdevice notifier So far, only net_device * could be passed along with netdevice notifier event. This patch provides a possibility to pass custom structure able to provide info that event listener needs to know. Signed-off-by: Jiri Pirko <jiri@resnulli.us> v2->v3: fix typo on simeth shortened dev_getter shortened notifier_info struct name v1->v2: fix notifier_call parameter in call_netdevice_notifier() Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-28 01:30:21 +00:00
net: reinstate rtnl in call_netdevice_notifiers() Eric Biederman pointed out that not holding RTNL while calling call_netdevice_notifiers() was racy. This patch is a direct transcription his feedback against commit 0115e8e30d6fc (net: remove delay at device dismantle) Thanks Eric ! Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Mahesh Bandewar <maheshb@google.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Gao feng <gaofeng@cn.fujitsu.com> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-22 21:50:59 +00:00
[IPV6]: Run DAD when the link becomes ready. If the link was not available when the interface was created, run DAD for pending tentative addresses when the link becomes ready. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:44 +09:00
[IPV4/IPV6]: Fail registration if inet device construction fails Now that netdev notifications can fail, we can use this to signal errors during registration for IPv4/IPv6. In particular, if we fail to allocate memory for the inet device, we can fail the netdev registration. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-30 17:04:52 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
[IPV6] ADDRCONF: Register inet6_dev earlier. Allocate inet6_dev earlier to allow users to set up per-interface variables. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2007-02-15 02:07:27 +09:00
[IPV6] addrconf: Fix IPv6 on tuntap tunnels The recent patch that added ipv6_hwtype is broken on tuntap tunnels. Indeed, it's broken on any device that does not pass the ipv6_hwtype test. The reason is that the original test only applies to autoconfiguration, not IPv6 support. IPv6 support is allowed on any device. In fact, even with the ipv6_hwtype patch applied you can still add IPv6 addresses to any interface that doesn't pass thw ipv6_hwtype test provided that they have a sufficiently large MTU. This is a serious problem because come deregistration time these devices won't be cleaned up properly. I've gone back and looked at the rationale for the patch. It appears that the real problem is that we were creating IPv6 devices even if the MTU was too small. So here's a patch which fixes that and reverts the ipv6_hwtype stuff. Thanks to Kanru Chen for reporting this issue. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-14 13:02:55 -07:00
[IPV6] ADDRCONF: Register inet6_dev earlier. Allocate inet6_dev earlier to allow users to set up per-interface variables. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2007-02-15 02:07:27 +09:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
[IPV6] ADDRCONF: Register inet6_dev earlier. Allocate inet6_dev earlier to allow users to set up per-interface variables. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2007-02-15 02:07:27 +09:00
IPv6: addrconf cleanups Some minor stuff, reformat comments and add whitespace for clarity Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:08:18 -07:00
ipv6: recreate ipv6 link-local addresses when increasing MTU over IPV6_MIN_MTU This change makes it so that we reinitialize the interface if the MTU is increased back above IPV6_MIN_MTU and the interface is up. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-26 11:06:33 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Defer IPv6 device initialization until the link becomes ready. NETDEV_UP might be sent even if the link attached to the interface was not ready. DAD does not make sense in such case, so we won't do so. After interface Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:24 +09:00
bonding / ipv6: no addrconf for slaves separately from master At present, when a device is enslaved to bonding, if ipv6 is active then addrconf will be initated on the slave (because it is closed then opened during the enslavement processing). This causes DAD and RS packets to be sent from the slave. These packets in turn can confuse switches that perform ipv6 snooping, causing them to incorrectly update their forwarding tables (if, e.g., the slave being added is an inactve backup that won't be used right away) and direct traffic away from the active slave to a backup slave (where the incoming packets will be dropped). This patch alters the behavior so that addrconf will only run on the master device itself. I believe this is logically correct, as it prevents slaves from having an IPv6 identity independent from the master. This is consistent with the IPv4 behavior for bonding. This is accomplished by (a) having bonding set IFF_SLAVE sooner in the enslavement processing than currently occurs (before open, not after), and (b) having ipv6 addrconf ignore UP and CHANGE events on slave devices. The eql driver also uses the IFF_SLAVE flag. I inspected eql, and I believe this change is reasonable for its usage of IFF_SLAVE, but I did not test it. Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-09 10:42:47 -07:00
ipv6: exit early in addrconf_notify() if IPv6 is disabled If IPv6 is explicitly disabled before the interface comes up, it makes no sense to continue when it comes up, even just print a message. (I am not sure about other cases though, so I prefer not to touch) Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-11 15:07:16 -07:00
[IPV6]: Defer IPv6 device initialization until the link becomes ready. NETDEV_UP might be sent even if the link attached to the interface was not ready. DAD does not make sense in such case, so we won't do so. After interface Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:24 +09:00
[IPV6]: Defer IPv6 device initialization until a valid qdisc is specified To judge the timing for DAD, netif_carrier_ok() is used. However, there is a possibility that dev->qdisc stays noop_qdisc even if netif_carrier_ok() returns true. In that case, DAD NS is not sent out. We need to defer the IPv6 device initialization until a valid qdisc is specified. Signed-off-by: Mitsuru Chinen <mitch@linux.vnet.ibm.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 02:53:43 -07:00
[IPV6]: Defer IPv6 device initialization until the link becomes ready. NETDEV_UP might be sent even if the link attached to the interface was not ready. DAD does not make sense in such case, so we won't do so. After interface Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:24 +09:00
net: ipv6: Standardize prefixes for message logging Add #define pr_fmt(fmt) as appropriate. Add "IPv6: " to appropriate files. Convert printk(KERN_<LEVEL> to pr_<level> (but not KERN_DEBUG). Standardize on "%s: " not "%s(): " when emitting __func__. Use "%s: ", __func__ instead of embedding function name. Coalesce formats, align arguments. ADDRCONF output is now prefixed with "IPv6: " Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-15 14:11:53 +00:00
[IPV6]: Defer IPv6 device initialization until the link becomes ready. NETDEV_UP might be sent even if the link attached to the interface was not ready. DAD does not make sense in such case, so we won't do so. After interface Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:24 +09:00
[IPV6]: Address autoconfiguration does not work after device down/up cycle If you set network interface down and up again, the IPv6 address autoconfiguration does not work. 'ip addr' shows that the link-local address is in tentative state. We don't even react to periodical router advertisements. During NETDEV_DOWN we clear IF_READY, and we don't set it back in NETDEV_UP. While starting to perform DAD on the link-local address, we notice that the device is not in IF_READY, and we abort autoconfiguration process (which would eventually send router solicitations). Acked-by: Juha-Matti Tapio <jmtapio@verkkotelakka.net> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-08 16:10:53 -08:00
[IPV6]: Restore IPv6 when MTU is big enough Avaid provided test application, so bug got fixed. IPv6 addrconf removes ipv6 inner device from netdev each time cmu changes and new value is less than IPV6_MIN_MTU (1280 bytes). When mtu is changed and new value is greater than IPV6_MIN_MTU, it does not add ipv6 addresses and inner device bac. This patch fixes that. Tested with Avaid's application, which works ok now. Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-11-30 23:36:08 +11:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
[IPV6]: Address autoconfiguration does not work after device down/up cycle If you set network interface down and up again, the IPv6 address autoconfiguration does not work. 'ip addr' shows that the link-local address is in tentative state. We don't even react to periodical router advertisements. During NETDEV_DOWN we clear IF_READY, and we don't set it back in NETDEV_UP. While starting to perform DAD on the link-local address, we notice that the device is not in IF_READY, and we abort autoconfiguration process (which would eventually send router solicitations). Acked-by: Juha-Matti Tapio <jmtapio@verkkotelakka.net> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-08 16:10:53 -08:00
ipv6: fix run pending DAD when interface becomes ready With some net devices types, an IPv6 address configured while the interface was down can stay 'tentative' forever, even after the interface is set up. In some case, pending IPv6 DADs are not executed when the device becomes ready. I observed this while doing some tests with kvm. If I assign an IPv6 address to my interface eth0 (kvm driver rtl8139) when it is still down then the address is flagged tentative (IFA_F_TENTATIVE). Then, I set eth0 up, and to my surprise, the address stays 'tentative', no DAD is executed and the address can't be pinged. I also observed the same behaviour, without kvm, with virtual interfaces types macvlan and veth. Some easy steps to reproduce the issue with macvlan: 1. ip link add link eth0 type macvlan 2. ip -6 addr add 2003::ab32/64 dev macvlan0 3. ip addr show dev macvlan0 ... inet6 2003::ab32/64 scope global tentative ... 4. ip link set macvlan0 up 5. ip addr show dev macvlan0 ... inet6 2003::ab32/64 scope global tentative ... Address is still tentative I think there's a bug in net/ipv6/addrconf.c, addrconf_notify(): addrconf_dad_run() is not always run when the interface is flagged IF_READY. Currently it is only run when receiving NETDEV_CHANGE event. Looks like some (virtual) devices doesn't send this event when becoming up. For both NETDEV_UP and NETDEV_CHANGE events, when the interface becomes ready, run_pending should be set to 1. Patch below. 'run_pending = 1' could be moved below the if/else block but it makes the code less readable. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-05 01:43:57 -08:00
ipv6: recreate ipv6 link-local addresses when increasing MTU over IPV6_MIN_MTU This change makes it so that we reinitialize the interface if the MTU is increased back above IPV6_MIN_MTU and the interface is up. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-26 11:06:33 -07:00
[IPV6]: Defer IPv6 device initialization until a valid qdisc is specified To judge the timing for DAD, netif_carrier_ok() is used. However, there is a possibility that dev->qdisc stays noop_qdisc even if netif_carrier_ok() returns true. In that case, DAD NS is not sent out. We need to defer the IPv6 device initialization until a valid qdisc is specified. Signed-off-by: Mitsuru Chinen <mitch@linux.vnet.ibm.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 02:53:43 -07:00
[IPV6]: Defer IPv6 device initialization until the link becomes ready. NETDEV_UP might be sent even if the link attached to the interface was not ready. DAD does not make sense in such case, so we won't do so. After interface Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:24 +09:00
IPv6: addrconf cleanups Some minor stuff, reformat comments and add whitespace for clarity Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:08:18 -07:00
[IPV6]: Defer IPv6 device initialization until the link becomes ready. NETDEV_UP might be sent even if the link attached to the interface was not ready. DAD does not make sense in such case, so we won't do so. After interface Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:24 +09:00
net: ipv6: Standardize prefixes for message logging Add #define pr_fmt(fmt) as appropriate. Add "IPv6: " to appropriate files. Convert printk(KERN_<LEVEL> to pr_<level> (but not KERN_DEBUG). Standardize on "%s: " not "%s(): " when emitting __func__. Use "%s: ", __func__ instead of embedding function name. Coalesce formats, align arguments. ADDRCONF output is now prefixed with "IPv6: " Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-15 14:11:53 +00:00
[IPV6]: Defer IPv6 device initialization until the link becomes ready. NETDEV_UP might be sent even if the link attached to the interface was not ready. DAD does not make sense in such case, so we won't do so. After interface Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:24 +09:00
[IPV6]: Run DAD when the link becomes ready. If the link was not available when the interface was created, run DAD for pending tentative addresses when the link becomes ready. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:44 +09:00
[IPV6]: Defer IPv6 device initialization until the link becomes ready. NETDEV_UP might be sent even if the link attached to the interface was not ready. DAD does not make sense in such case, so we won't do so. After interface Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:24 +09:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
ipv6: use IS_ENABLED() #if defined(CONFIG_FOO) || defined(CONFIG_FOO_MODULE) can be replaced by #if IS_ENABLED(CONFIG_FOO) Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-29 16:23:10 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: generate link local address for GRE tunnel Use same logic as SIT tunnel to handle link local address for GRE tunnel. OSPFv3 requires link-local address to function. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-08 10:44:30 +00:00
ipv6: use IS_ENABLED() #if defined(CONFIG_FOO) || defined(CONFIG_FOO_MODULE) can be replaced by #if IS_ENABLED(CONFIG_FOO) Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-29 16:23:10 +00:00
ipv6: generate link local address for GRE tunnel Use same logic as SIT tunnel to handle link local address for GRE tunnel. OSPFv3 requires link-local address to function. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-08 10:44:30 +00:00
[IPV6]: Seperate sit driver to extra module (addrconf.c changes) This patch contains the changes to net/ipv6/addrconf.c to remove sit specific code if the sit driver is not selected. Signed-off-by: Joerg Roedel <joro-lkml@zlug.org> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-10 14:49:53 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET]: cleanup extra semicolons Spring cleaning time... There seems to be a lot of places in the network code that have extra bogus semicolons after conditionals. Most commonly is a bogus semicolon after: switch() { } Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-20 17:09:22 -07:00
IPv6: addrconf cleanups Some minor stuff, reformat comments and add whitespace for clarity Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:08:18 -07:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
[IPV6]: Run DAD when the link becomes ready. If the link was not available when the interface was created, run DAD for pending tentative addresses when the link becomes ready. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:44 +09:00
IPv6: addrconf cleanups Some minor stuff, reformat comments and add whitespace for clarity Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:08:18 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: addrconf cleanups Some minor stuff, reformat comments and add whitespace for clarity Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:08:18 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: addrconf cleanups Some minor stuff, reformat comments and add whitespace for clarity Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:08:18 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: addrconf cleanups Some minor stuff, reformat comments and add whitespace for clarity Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:08:18 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Defer IPv6 device initialization until the link becomes ready. NETDEV_UP might be sent even if the link attached to the interface was not ready. DAD does not make sense in such case, so we won't do so. After interface Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:24 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Track device renames in snmp6. When network device's are renamed, the IPV6 snmp6 code gets confused. It doesn't track name changes so it will OOPS when network device's are removed. The fix is trivial, just unregister/re-register in notify handler. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-28 21:16:39 -07:00
[NETNS]: Clean out the ipv6-related sysctls creation/destruction The addrconf sysctls and neigh sysctls are registered and unregistered always in pairs, so they can be joined into one (well, two) functions, that accept the struct inet6_dev and do all the job. This also get rids of unneeded ifdefs inside the code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:41:21 -08:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
[IPV4/IPV6]: Fail registration if inet device construction fails Now that netdev notifications can fail, we can use this to signal errors during registration for IPv4/IPv6. In particular, if we fail to allocate memory for the inet device, we can fail the netdev registration. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-30 17:04:52 -07:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
[IPV6]: Track device renames in snmp6. When network device's are renamed, the IPV6 snmp6 code gets confused. It doesn't track name changes so it will OOPS when network device's are removed. The fix is trivial, just unregister/re-register in notify handler. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-28 21:16:39 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: addrconf cleanups Some minor stuff, reformat comments and add whitespace for clarity Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:08:18 -07:00
net: rename notifier defines for netdev type change Since generally there could be more netdevices changing type other than bonding, making this event type name "bonding-unrelated" Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-10 10:28:56 +00:00
bonding: remap muticast addresses without using dev_close() and dev_open() This patch fixes commit e36b9d16c6a6d0f59803b3ef04ff3c22c3844c10. The approach there is to call dev_close()/dev_open() whenever the device type is changed in order to remap the device IP multicast addresses to HW multicast addresses. This approach suffers from 2 drawbacks: *. It assumes tha the device is UP when calling dev_close(), or otherwise dev_close() has no affect. It is worth to mention that initscripts (Redhat) and sysconfig (Suse) doesn't act the same in this matter. *. dev_close() has other side affects, like deleting entries from the routing table, which might be unnecessary. The fix here is to directly remap the IP multicast addresses to HW multicast addresses for a bonding device that changes its type, and nothing else. Reported-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Moni Shoua <monis@voltaire.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-15 02:37:40 -07:00
[NET]: cleanup extra semicolons Spring cleaning time... There seems to be a lot of places in the network code that have extra bogus semicolons after conditionals. Most commonly is a bogus semicolon after: switch() { } Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-20 17:09:22 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: rename notifier defines for netdev type change Since generally there could be more netdevices changing type other than bonding, making this event type name "bonding-unrelated" Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-10 10:28:56 +00:00
bonding: remap muticast addresses without using dev_close() and dev_open() This patch fixes commit e36b9d16c6a6d0f59803b3ef04ff3c22c3844c10. The approach there is to call dev_close()/dev_open() whenever the device type is changed in order to remap the device IP multicast addresses to HW multicast addresses. This approach suffers from 2 drawbacks: *. It assumes tha the device is UP when calling dev_close(), or otherwise dev_close() has no affect. It is worth to mention that initscripts (Redhat) and sysconfig (Suse) doesn't act the same in this matter. *. dev_close() has other side affects, like deleting entries from the routing table, which might be unnecessary. The fix here is to directly remap the IP multicast addresses to HW multicast addresses for a bonding device that changes its type, and nothing else. Reported-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Moni Shoua <monis@voltaire.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-15 02:37:40 -07:00
net: rename notifier defines for netdev type change Since generally there could be more netdevices changing type other than bonding, making this event type name "bonding-unrelated" Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-10 10:28:56 +00:00
bonding: remap muticast addresses without using dev_close() and dev_open() This patch fixes commit e36b9d16c6a6d0f59803b3ef04ff3c22c3844c10. The approach there is to call dev_close()/dev_open() whenever the device type is changed in order to remap the device IP multicast addresses to HW multicast addresses. This approach suffers from 2 drawbacks: *. It assumes tha the device is UP when calling dev_close(), or otherwise dev_close() has no affect. It is worth to mention that initscripts (Redhat) and sysconfig (Suse) doesn't act the same in this matter. *. dev_close() has other side affects, like deleting entries from the routing table, which might be unnecessary. The fix here is to directly remap the IP multicast addresses to HW multicast addresses for a bonding device that changes its type, and nothing else. Reported-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Moni Shoua <monis@voltaire.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-15 02:37:40 -07:00
net: rename notifier defines for netdev type change Since generally there could be more netdevices changing type other than bonding, making this event type name "bonding-unrelated" Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-10 10:28:56 +00:00
bonding: remap muticast addresses without using dev_close() and dev_open() This patch fixes commit e36b9d16c6a6d0f59803b3ef04ff3c22c3844c10. The approach there is to call dev_close()/dev_open() whenever the device type is changed in order to remap the device IP multicast addresses to HW multicast addresses. This approach suffers from 2 drawbacks: *. It assumes tha the device is UP when calling dev_close(), or otherwise dev_close() has no affect. It is worth to mention that initscripts (Redhat) and sysconfig (Suse) doesn't act the same in this matter. *. dev_close() has other side affects, like deleting entries from the routing table, which might be unnecessary. The fix here is to directly remap the IP multicast addresses to HW multicast addresses for a bonding device that changes its type, and nothing else. Reported-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Moni Shoua <monis@voltaire.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-15 02:37:40 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS. Introduce per-net_device inlines: dev_net(), dev_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25 21:47:49 +09:00
ipv6: convert idev_list to list macros Convert to list macro's for the list of addresses per interface in IPv6. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:13 +00:00
ipv6: Revert 'administrative down' address handling changes. This reverts the following set of commits: d1ed113f1669390da9898da3beddcc058d938587 ("ipv6: remove duplicate neigh_ifdown") 29ba5fed1bbd09c2cba890798c8f9eaab251401d ("ipv6: don't flush routes when setting loopback down") 9d82ca98f71fd686ef2f3017c5e3e6a4871b6e46 ("ipv6: fix missing in6_ifa_put in addrconf") 2de795707294972f6c34bae9de713e502c431296 ("ipv6: addrconf: don't remove address state on ifdown if the address is being kept") 8595805aafc8b077e01804c9a3668e9aa3510e89 ("IPv6: only notify protocols if address is compeletely gone") 27bdb2abcc5edb3526e25407b74bf17d1872c329 ("IPv6: keep tentative addresses in hash table") 93fa159abe50d3c55c7f83622d3f5c09b6e06f4b ("IPv6: keep route for tentative address") 8f37ada5b5f6bfb4d251a7f510f249cb855b77b3 ("IPv6: fix race between cleanup and add/delete address") 84e8b803f1e16f3a2b8b80f80a63fa2f2f8a9be6 ("IPv6: addrconf notify when address is unavailable") dc2b99f71ef477a31020511876ab4403fb7c4420 ("IPv6: keep permanent addresses on admin down") because the core semantic change to ipv6 address handling on ifdown has broken some things, in particular "disable_ipv6" sysctl handling. Stephen has made several attempts to get things back in working order, but nothing has restored disable_ipv6 fully yet. Reported-by: Eric W. Biederman <ebiederm@xmission.com> Tested-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-23 23:27:15 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Revert 'administrative down' address handling changes. This reverts the following set of commits: d1ed113f1669390da9898da3beddcc058d938587 ("ipv6: remove duplicate neigh_ifdown") 29ba5fed1bbd09c2cba890798c8f9eaab251401d ("ipv6: don't flush routes when setting loopback down") 9d82ca98f71fd686ef2f3017c5e3e6a4871b6e46 ("ipv6: fix missing in6_ifa_put in addrconf") 2de795707294972f6c34bae9de713e502c431296 ("ipv6: addrconf: don't remove address state on ifdown if the address is being kept") 8595805aafc8b077e01804c9a3668e9aa3510e89 ("IPv6: only notify protocols if address is compeletely gone") 27bdb2abcc5edb3526e25407b74bf17d1872c329 ("IPv6: keep tentative addresses in hash table") 93fa159abe50d3c55c7f83622d3f5c09b6e06f4b ("IPv6: keep route for tentative address") 8f37ada5b5f6bfb4d251a7f510f249cb855b77b3 ("IPv6: fix race between cleanup and add/delete address") 84e8b803f1e16f3a2b8b80f80a63fa2f2f8a9be6 ("IPv6: addrconf notify when address is unavailable") dc2b99f71ef477a31020511876ab4403fb7c4420 ("IPv6: keep permanent addresses on admin down") because the core semantic change to ipv6 address handling on ifdown has broken some things, in particular "disable_ipv6" sysctl handling. Stephen has made several attempts to get things back in working order, but nothing has restored disable_ipv6 fully yet. Reported-by: Eric W. Biederman <ebiederm@xmission.com> Tested-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-23 23:27:15 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: addrconf cleanups Some minor stuff, reformat comments and add whitespace for clarity Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:08:18 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Event type in addrconf_ifdown is mis-used. addrconf_ifdown is broken in respect to the usage of how parameter. This function is called with (event != NETDEV_DOWN) and (2) on the IPv6 stop. It the latter case inet6_dev from loopback device should be destroyed. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-03 13:30:17 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Convert addrconf_lock to RCU. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:44:24 -07:00
rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER When assigning a NULL value to an RCU protected pointer, no barrier is needed. The rcu_assign_pointer, used to handle that but will soon change to not handle the special case. Convert all rcu_assign_pointer of NULL value. //smpl @@ expression P; @@ - rcu_assign_pointer(P, NULL) + RCU_INIT_POINTER(P, NULL) // </smpl> Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01 16:19:00 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Revert 'administrative down' address handling changes. This reverts the following set of commits: d1ed113f1669390da9898da3beddcc058d938587 ("ipv6: remove duplicate neigh_ifdown") 29ba5fed1bbd09c2cba890798c8f9eaab251401d ("ipv6: don't flush routes when setting loopback down") 9d82ca98f71fd686ef2f3017c5e3e6a4871b6e46 ("ipv6: fix missing in6_ifa_put in addrconf") 2de795707294972f6c34bae9de713e502c431296 ("ipv6: addrconf: don't remove address state on ifdown if the address is being kept") 8595805aafc8b077e01804c9a3668e9aa3510e89 ("IPv6: only notify protocols if address is compeletely gone") 27bdb2abcc5edb3526e25407b74bf17d1872c329 ("IPv6: keep tentative addresses in hash table") 93fa159abe50d3c55c7f83622d3f5c09b6e06f4b ("IPv6: keep route for tentative address") 8f37ada5b5f6bfb4d251a7f510f249cb855b77b3 ("IPv6: fix race between cleanup and add/delete address") 84e8b803f1e16f3a2b8b80f80a63fa2f2f8a9be6 ("IPv6: addrconf notify when address is unavailable") dc2b99f71ef477a31020511876ab4403fb7c4420 ("IPv6: keep permanent addresses on admin down") because the core semantic change to ipv6 address handling on ifdown has broken some things, in particular "disable_ipv6" sysctl handling. Stephen has made several attempts to get things back in working order, but nothing has restored disable_ipv6 fully yet. Reported-by: Eric W. Biederman <ebiederm@xmission.com> Tested-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-23 23:27:15 -08:00
ipv6: White-space cleansing : Line Layouts This patch makes no changes to the logic of the code but simply addresses coding style issues as detected by checkpatch. Both objdump and diff -w show no differences. A number of items are addressed in this patch: * Multiple spaces converted to tabs * Spaces before tabs removed. * Spaces in pointer typing cleansed (char *)foo etc. * Remove space after sizeof * Ensure spacing around comparators such as if statements. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-24 21:53:10 +01:00
hlist: drop the node parameter from iterators I'm not sure why, but the hlist for each entry iterators were conceived list_for_each_entry(pos, head, member) The hlist ones were greedy and wanted an extra parameter: hlist_for_each_entry(tpos, pos, head, member) Why did they need an extra pos parameter? I'm not quite sure. Not only they don't really need it, it also prevents the iterator from looking exactly like the list iterator, which is unfortunate. Besides the semantic patch, there was some manual work required: - Fix up the actual hlist iterators in linux/list.h - Fix up the declaration of other iterators based on the hlist ones. - A very small amount of places were using the 'node' parameter, this was modified to use 'obj->member' instead. - Coccinelle didn't handle the hlist_for_each_entry_safe iterator properly, so those had to be fixed up manually. The semantic patch which is mostly the work of Peter Senna Tschudin is here: @@ iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host; type T; expression a,c,d,e; identifier b; statement S; @@ -T b; <+... when != b ( hlist_for_each_entry(a, - b, c, d) S | hlist_for_each_entry_continue(a, - b, c) S | hlist_for_each_entry_from(a, - b, c) S | hlist_for_each_entry_rcu(a, - b, c, d) S | hlist_for_each_entry_rcu_bh(a, - b, c, d) S | hlist_for_each_entry_continue_rcu_bh(a, - b, c) S | for_each_busy_worker(a, c, - b, d) S | ax25_uid_for_each(a, - b, c) S | ax25_for_each(a, - b, c) S | inet_bind_bucket_for_each(a, - b, c) S | sctp_for_each_hentry(a, - b, c) S | sk_for_each(a, - b, c) S | sk_for_each_rcu(a, - b, c) S | sk_for_each_from -(a, b) +(a) S + sk_for_each_from(a) S | sk_for_each_safe(a, - b, c, d) S | sk_for_each_bound(a, - b, c) S | hlist_for_each_entry_safe(a, - b, c, d, e) S | hlist_for_each_entry_continue_rcu(a, - b, c) S | nr_neigh_for_each(a, - b, c) S | nr_neigh_for_each_safe(a, - b, c, d) S | nr_node_for_each(a, - b, c) S | nr_node_for_each_safe(a, - b, c, d) S | - for_each_gfn_sp(a, c, d, b) S + for_each_gfn_sp(a, c, d) S | - for_each_gfn_indirect_valid_sp(a, c, d, b) S + for_each_gfn_indirect_valid_sp(a, c, d) S | for_each_host(a, - b, c) S | for_each_host_safe(a, - b, c, d) S | for_each_mesh_entry(a, - b, c, d) S ) ...+> [akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c] [akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c] [akpm@linux-foundation.org: checkpatch fixes] [akpm@linux-foundation.org: fix warnings] [akpm@linux-foudnation.org: redo intrusive kvm changes] Tested-by: Peter Senna Tschudin <peter.senna@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Gleb Natapov <gleb@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-27 17:06:00 -08:00
ipv6: Revert 'administrative down' address handling changes. This reverts the following set of commits: d1ed113f1669390da9898da3beddcc058d938587 ("ipv6: remove duplicate neigh_ifdown") 29ba5fed1bbd09c2cba890798c8f9eaab251401d ("ipv6: don't flush routes when setting loopback down") 9d82ca98f71fd686ef2f3017c5e3e6a4871b6e46 ("ipv6: fix missing in6_ifa_put in addrconf") 2de795707294972f6c34bae9de713e502c431296 ("ipv6: addrconf: don't remove address state on ifdown if the address is being kept") 8595805aafc8b077e01804c9a3668e9aa3510e89 ("IPv6: only notify protocols if address is compeletely gone") 27bdb2abcc5edb3526e25407b74bf17d1872c329 ("IPv6: keep tentative addresses in hash table") 93fa159abe50d3c55c7f83622d3f5c09b6e06f4b ("IPv6: keep route for tentative address") 8f37ada5b5f6bfb4d251a7f510f249cb855b77b3 ("IPv6: fix race between cleanup and add/delete address") 84e8b803f1e16f3a2b8b80f80a63fa2f2f8a9be6 ("IPv6: addrconf notify when address is unavailable") dc2b99f71ef477a31020511876ab4403fb7c4420 ("IPv6: keep permanent addresses on admin down") because the core semantic change to ipv6 address handling on ifdown has broken some things, in particular "disable_ipv6" sysctl handling. Stephen has made several attempts to get things back in working order, but nothing has restored disable_ipv6 fully yet. Reported-by: Eric W. Biederman <ebiederm@xmission.com> Tested-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-23 23:27:15 -08:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
ipv6: Revert 'administrative down' address handling changes. This reverts the following set of commits: d1ed113f1669390da9898da3beddcc058d938587 ("ipv6: remove duplicate neigh_ifdown") 29ba5fed1bbd09c2cba890798c8f9eaab251401d ("ipv6: don't flush routes when setting loopback down") 9d82ca98f71fd686ef2f3017c5e3e6a4871b6e46 ("ipv6: fix missing in6_ifa_put in addrconf") 2de795707294972f6c34bae9de713e502c431296 ("ipv6: addrconf: don't remove address state on ifdown if the address is being kept") 8595805aafc8b077e01804c9a3668e9aa3510e89 ("IPv6: only notify protocols if address is compeletely gone") 27bdb2abcc5edb3526e25407b74bf17d1872c329 ("IPv6: keep tentative addresses in hash table") 93fa159abe50d3c55c7f83622d3f5c09b6e06f4b ("IPv6: keep route for tentative address") 8f37ada5b5f6bfb4d251a7f510f249cb855b77b3 ("IPv6: fix race between cleanup and add/delete address") 84e8b803f1e16f3a2b8b80f80a63fa2f2f8a9be6 ("IPv6: addrconf notify when address is unavailable") dc2b99f71ef477a31020511876ab4403fb7c4420 ("IPv6: keep permanent addresses on admin down") because the core semantic change to ipv6 address handling on ifdown has broken some things, in particular "disable_ipv6" sysctl handling. Stephen has made several attempts to get things back in working order, but nothing has restored disable_ipv6 fully yet. Reported-by: Eric W. Biederman <ebiederm@xmission.com> Tested-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-23 23:27:15 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
IPv6: addrconf cleanups Some minor stuff, reformat comments and add whitespace for clarity Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:08:18 -07:00
[IPV6]: Event type in addrconf_ifdown is mis-used. addrconf_ifdown is broken in respect to the usage of how parameter. This function is called with (event != NETDEV_DOWN) and (2) on the IPv6 stop. It the latter case inet6_dev from loopback device should be destroyed. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-03 13:30:17 -07:00
[IPV6]: Defer IPv6 device initialization until the link becomes ready. NETDEV_UP might be sent even if the link attached to the interface was not ready. DAD does not make sense in such case, so we won't do so. After interface Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:24 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Event type in addrconf_ifdown is mis-used. addrconf_ifdown is broken in respect to the usage of how parameter. This function is called with (event != NETDEV_DOWN) and (2) on the IPv6 stop. It the latter case inet6_dev from loopback device should be destroyed. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-03 13:30:17 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: addrconf cleanups Some minor stuff, reformat comments and add whitespace for clarity Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:08:18 -07:00
ipv6: convert temporary address list to list macros Use list macros instead of open coded linked list. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:09 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: fix race between cleanup and add/delete address This solves a potential race problem during the cleanup process. The issue is that addrconf_ifdown() needs to traverse address list, but then drop lock to call the notifier. The version in -next could get confused if add/delete happened during this window. Original code (2.6.32 and earlier) was okay because all addresses were always deleted. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-03 08:19:59 +00:00
ipv6: convert idev_list to list macros Convert to list macro's for the list of addresses per interface in IPv6. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:13 +00:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
IPv6: addrconf notify when address is unavailable My recent change in net-next to retain permanent addresses caused regression. Device refcount would not go to zero when device was unregistered because left over anycast reference would hold ipv6 dev reference which would hold device references... The correct procedure is to call notify chain when address is no longer available for use. When interface comes back DAD timer will notify back that address is available. Also, link local addresses should be purged when interface is brought down. The address might be changed. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-02 13:32:46 +00:00
ipv6: Revert 'administrative down' address handling changes. This reverts the following set of commits: d1ed113f1669390da9898da3beddcc058d938587 ("ipv6: remove duplicate neigh_ifdown") 29ba5fed1bbd09c2cba890798c8f9eaab251401d ("ipv6: don't flush routes when setting loopback down") 9d82ca98f71fd686ef2f3017c5e3e6a4871b6e46 ("ipv6: fix missing in6_ifa_put in addrconf") 2de795707294972f6c34bae9de713e502c431296 ("ipv6: addrconf: don't remove address state on ifdown if the address is being kept") 8595805aafc8b077e01804c9a3668e9aa3510e89 ("IPv6: only notify protocols if address is compeletely gone") 27bdb2abcc5edb3526e25407b74bf17d1872c329 ("IPv6: keep tentative addresses in hash table") 93fa159abe50d3c55c7f83622d3f5c09b6e06f4b ("IPv6: keep route for tentative address") 8f37ada5b5f6bfb4d251a7f510f249cb855b77b3 ("IPv6: fix race between cleanup and add/delete address") 84e8b803f1e16f3a2b8b80f80a63fa2f2f8a9be6 ("IPv6: addrconf notify when address is unavailable") dc2b99f71ef477a31020511876ab4403fb7c4420 ("IPv6: keep permanent addresses on admin down") because the core semantic change to ipv6 address handling on ifdown has broken some things, in particular "disable_ipv6" sysctl handling. Stephen has made several attempts to get things back in working order, but nothing has restored disable_ipv6 fully yet. Reported-by: Eric W. Biederman <ebiederm@xmission.com> Tested-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-23 23:27:15 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Revert 'administrative down' address handling changes. This reverts the following set of commits: d1ed113f1669390da9898da3beddcc058d938587 ("ipv6: remove duplicate neigh_ifdown") 29ba5fed1bbd09c2cba890798c8f9eaab251401d ("ipv6: don't flush routes when setting loopback down") 9d82ca98f71fd686ef2f3017c5e3e6a4871b6e46 ("ipv6: fix missing in6_ifa_put in addrconf") 2de795707294972f6c34bae9de713e502c431296 ("ipv6: addrconf: don't remove address state on ifdown if the address is being kept") 8595805aafc8b077e01804c9a3668e9aa3510e89 ("IPv6: only notify protocols if address is compeletely gone") 27bdb2abcc5edb3526e25407b74bf17d1872c329 ("IPv6: keep tentative addresses in hash table") 93fa159abe50d3c55c7f83622d3f5c09b6e06f4b ("IPv6: keep route for tentative address") 8f37ada5b5f6bfb4d251a7f510f249cb855b77b3 ("IPv6: fix race between cleanup and add/delete address") 84e8b803f1e16f3a2b8b80f80a63fa2f2f8a9be6 ("IPv6: addrconf notify when address is unavailable") dc2b99f71ef477a31020511876ab4403fb7c4420 ("IPv6: keep permanent addresses on admin down") because the core semantic change to ipv6 address handling on ifdown has broken some things, in particular "disable_ipv6" sysctl handling. Stephen has made several attempts to get things back in working order, but nothing has restored disable_ipv6 fully yet. Reported-by: Eric W. Biederman <ebiederm@xmission.com> Tested-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-23 23:27:15 -08:00
IPv6: addrconf notify when address is unavailable My recent change in net-next to retain permanent addresses caused regression. Device refcount would not go to zero when device was unregistered because left over anycast reference would hold ipv6 dev reference which would hold device references... The correct procedure is to call notify chain when address is no longer available for use. When interface comes back DAD timer will notify back that address is available. Also, link local addresses should be purged when interface is brought down. The address might be changed. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-02 13:32:46 +00:00
ipv6: collapse state_lock and lock Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:03 +01:00
ipv6: Revert 'administrative down' address handling changes. This reverts the following set of commits: d1ed113f1669390da9898da3beddcc058d938587 ("ipv6: remove duplicate neigh_ifdown") 29ba5fed1bbd09c2cba890798c8f9eaab251401d ("ipv6: don't flush routes when setting loopback down") 9d82ca98f71fd686ef2f3017c5e3e6a4871b6e46 ("ipv6: fix missing in6_ifa_put in addrconf") 2de795707294972f6c34bae9de713e502c431296 ("ipv6: addrconf: don't remove address state on ifdown if the address is being kept") 8595805aafc8b077e01804c9a3668e9aa3510e89 ("IPv6: only notify protocols if address is compeletely gone") 27bdb2abcc5edb3526e25407b74bf17d1872c329 ("IPv6: keep tentative addresses in hash table") 93fa159abe50d3c55c7f83622d3f5c09b6e06f4b ("IPv6: keep route for tentative address") 8f37ada5b5f6bfb4d251a7f510f249cb855b77b3 ("IPv6: fix race between cleanup and add/delete address") 84e8b803f1e16f3a2b8b80f80a63fa2f2f8a9be6 ("IPv6: addrconf notify when address is unavailable") dc2b99f71ef477a31020511876ab4403fb7c4420 ("IPv6: keep permanent addresses on admin down") because the core semantic change to ipv6 address handling on ifdown has broken some things, in particular "disable_ipv6" sysctl handling. Stephen has made several attempts to get things back in working order, but nothing has restored disable_ipv6 fully yet. Reported-by: Eric W. Biederman <ebiederm@xmission.com> Tested-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-23 23:27:15 -08:00
ipv6: collapse state_lock and lock Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:03 +01:00
IPv6: addrconf notify when address is unavailable My recent change in net-next to retain permanent addresses caused regression. Device refcount would not go to zero when device was unregistered because left over anycast reference would hold ipv6 dev reference which would hold device references... The correct procedure is to call notify chain when address is no longer available for use. When interface comes back DAD timer will notify back that address is available. Also, link local addresses should be purged when interface is brought down. The address might be changed. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-02 13:32:46 +00:00
ipv6: Revert 'administrative down' address handling changes. This reverts the following set of commits: d1ed113f1669390da9898da3beddcc058d938587 ("ipv6: remove duplicate neigh_ifdown") 29ba5fed1bbd09c2cba890798c8f9eaab251401d ("ipv6: don't flush routes when setting loopback down") 9d82ca98f71fd686ef2f3017c5e3e6a4871b6e46 ("ipv6: fix missing in6_ifa_put in addrconf") 2de795707294972f6c34bae9de713e502c431296 ("ipv6: addrconf: don't remove address state on ifdown if the address is being kept") 8595805aafc8b077e01804c9a3668e9aa3510e89 ("IPv6: only notify protocols if address is compeletely gone") 27bdb2abcc5edb3526e25407b74bf17d1872c329 ("IPv6: keep tentative addresses in hash table") 93fa159abe50d3c55c7f83622d3f5c09b6e06f4b ("IPv6: keep route for tentative address") 8f37ada5b5f6bfb4d251a7f510f249cb855b77b3 ("IPv6: fix race between cleanup and add/delete address") 84e8b803f1e16f3a2b8b80f80a63fa2f2f8a9be6 ("IPv6: addrconf notify when address is unavailable") dc2b99f71ef477a31020511876ab4403fb7c4420 ("IPv6: keep permanent addresses on admin down") because the core semantic change to ipv6 address handling on ifdown has broken some things, in particular "disable_ipv6" sysctl handling. Stephen has made several attempts to get things back in working order, but nothing has restored disable_ipv6 fully yet. Reported-by: Eric W. Biederman <ebiederm@xmission.com> Tested-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-23 23:27:15 -08:00
ipv6: statically link register_inet6addr_notifier() Tomas reported the following build error: net/built-in.o: In function `ieee80211_unregister_hw': (.text+0x10f0e1): undefined reference to `unregister_inet6addr_notifier' net/built-in.o: In function `ieee80211_register_hw': (.text+0x10f610): undefined reference to `register_inet6addr_notifier' make: *** [vmlinux] Error 1 when built IPv6 as a module. So we have to statically link these symbols. Reported-by: Tomas Melin <tomas.melin@iki.fi> Cc: Tomas Melin <tomas.melin@iki.fi> Cc: "David S. Miller" <davem@davemloft.net> Cc: YOSHIFUJI Hidaki <yoshfuji@linux-ipv6.org> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-14 23:18:43 +08:00
IPv6: keep tentative addresses in hash table When link goes down, want address to be preserved but in a tentative state, therefore it has to stay in hash list. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-12 05:41:32 +00:00
ipv6: Revert 'administrative down' address handling changes. This reverts the following set of commits: d1ed113f1669390da9898da3beddcc058d938587 ("ipv6: remove duplicate neigh_ifdown") 29ba5fed1bbd09c2cba890798c8f9eaab251401d ("ipv6: don't flush routes when setting loopback down") 9d82ca98f71fd686ef2f3017c5e3e6a4871b6e46 ("ipv6: fix missing in6_ifa_put in addrconf") 2de795707294972f6c34bae9de713e502c431296 ("ipv6: addrconf: don't remove address state on ifdown if the address is being kept") 8595805aafc8b077e01804c9a3668e9aa3510e89 ("IPv6: only notify protocols if address is compeletely gone") 27bdb2abcc5edb3526e25407b74bf17d1872c329 ("IPv6: keep tentative addresses in hash table") 93fa159abe50d3c55c7f83622d3f5c09b6e06f4b ("IPv6: keep route for tentative address") 8f37ada5b5f6bfb4d251a7f510f249cb855b77b3 ("IPv6: fix race between cleanup and add/delete address") 84e8b803f1e16f3a2b8b80f80a63fa2f2f8a9be6 ("IPv6: addrconf notify when address is unavailable") dc2b99f71ef477a31020511876ab4403fb7c4420 ("IPv6: keep permanent addresses on admin down") because the core semantic change to ipv6 address handling on ifdown has broken some things, in particular "disable_ipv6" sysctl handling. Stephen has made several attempts to get things back in working order, but nothing has restored disable_ipv6 fully yet. Reported-by: Eric W. Biederman <ebiederm@xmission.com> Tested-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-23 23:27:15 -08:00
IPv6: fix race between cleanup and add/delete address This solves a potential race problem during the cleanup process. The issue is that addrconf_ifdown() needs to traverse address list, but then drop lock to call the notifier. The version in -next could get confused if add/delete happened during this window. Original code (2.6.32 and earlier) was okay because all addresses were always deleted. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-03 08:19:59 +00:00
ipv6: Revert 'administrative down' address handling changes. This reverts the following set of commits: d1ed113f1669390da9898da3beddcc058d938587 ("ipv6: remove duplicate neigh_ifdown") 29ba5fed1bbd09c2cba890798c8f9eaab251401d ("ipv6: don't flush routes when setting loopback down") 9d82ca98f71fd686ef2f3017c5e3e6a4871b6e46 ("ipv6: fix missing in6_ifa_put in addrconf") 2de795707294972f6c34bae9de713e502c431296 ("ipv6: addrconf: don't remove address state on ifdown if the address is being kept") 8595805aafc8b077e01804c9a3668e9aa3510e89 ("IPv6: only notify protocols if address is compeletely gone") 27bdb2abcc5edb3526e25407b74bf17d1872c329 ("IPv6: keep tentative addresses in hash table") 93fa159abe50d3c55c7f83622d3f5c09b6e06f4b ("IPv6: keep route for tentative address") 8f37ada5b5f6bfb4d251a7f510f249cb855b77b3 ("IPv6: fix race between cleanup and add/delete address") 84e8b803f1e16f3a2b8b80f80a63fa2f2f8a9be6 ("IPv6: addrconf notify when address is unavailable") dc2b99f71ef477a31020511876ab4403fb7c4420 ("IPv6: keep permanent addresses on admin down") because the core semantic change to ipv6 address handling on ifdown has broken some things, in particular "disable_ipv6" sysctl handling. Stephen has made several attempts to get things back in working order, but nothing has restored disable_ipv6 fully yet. Reported-by: Eric W. Biederman <ebiederm@xmission.com> Tested-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-23 23:27:15 -08:00
IPv6: fix race between cleanup and add/delete address This solves a potential race problem during the cleanup process. The issue is that addrconf_ifdown() needs to traverse address list, but then drop lock to call the notifier. The version in -next could get confused if add/delete happened during this window. Original code (2.6.32 and earlier) was okay because all addresses were always deleted. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-03 08:19:59 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: clean up anycast when an interface is destroyed If we try to rmmod the driver for an interface while sockets with setsockopt(JOIN_ANYCAST) are alive, some refcounts aren't cleaned up and we get stuck on: unregister_netdevice: waiting for ens3 to become free. Usage count = 1 If we LEAVE_ANYCAST/close everything before rmmod'ing, there is no problem. We need to perform a cleanup similar to the one for multicast in addrconf_ifdown(how == 1). Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-10 23:23:02 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: clean up anycast when an interface is destroyed If we try to rmmod the driver for an interface while sockets with setsockopt(JOIN_ANYCAST) are alive, some refcounts aren't cleaned up and we get stuck on: unregister_netdevice: waiting for ens3 to become free. Usage count = 1 If we LEAVE_ANYCAST/close everything before rmmod'ing, there is no problem. We need to perform a cleanup similar to the one for multicast in addrconf_ifdown(how == 1). Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-10 23:23:02 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: clean up anycast when an interface is destroyed If we try to rmmod the driver for an interface while sockets with setsockopt(JOIN_ANYCAST) are alive, some refcounts aren't cleaned up and we get stuck on: unregister_netdevice: waiting for ens3 to become free. Usage count = 1 If we LEAVE_ANYCAST/close everything before rmmod'ing, there is no problem. We need to perform a cleanup similar to the one for multicast in addrconf_ifdown(how == 1). Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-10 23:23:02 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
IPv6: addrconf cleanups Some minor stuff, reformat comments and add whitespace for clarity Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:08:18 -07:00
[IPV6]: Event type in addrconf_ifdown is mis-used. addrconf_ifdown is broken in respect to the usage of how parameter. This function is called with (event != NETDEV_DOWN) and (2) on the IPv6 stop. It the latter case inet6_dev from loopback device should be destroyed. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-03 13:30:17 -07:00
[NETNS]: Clean out the ipv6-related sysctls creation/destruction The addrconf sysctls and neigh sysctls are registered and unregistered always in pairs, so they can be joined into one (well, two) functions, that accept the struct inet6_dev and do all the job. This also get rids of unneeded ifdefs inside the code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:41:21 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
ipv6: do not call ndisc_send_rs() with write lock Because vxlan module will call ip6_dst_lookup() in TX path, which will hold write lock. So we have to release this write lock before calling ndisc_send_rs(), otherwise could deadlock. Reviewed-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-31 13:44:32 +08:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
IPv6: addrconf timer race The Router Solicitation timer races with device state changes because it doesn't lock the device. Use local variable to avoid one repeated dereference. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-02 13:32:45 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Make 'addrconf_rs_timer' send Router Solicitations (and re-arm itself) if Router Advertisements are accepted As of 026359b [ipv6: Send ICMPv6 RSes only when RAs are accepted], Router Solicitations are sent whenever kernel accepts Router Advertisements on the interface. However, this logic isn't reflected in 'addrconf_rs_timer'. The timer fails to issue subsequent RS messages (and fails to re-arm itself) if forwarding is enabled and the special hybrid mode is enabled (accept_ra=2). Fix the condition determining whether next RS should be sent, by using 'ipv6_accept_ra()'. Reported-by: Ami Koren <amikoren@yahoo.com> Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-02 01:44:53 +00:00
IPv6: addrconf timer race The Router Solicitation timer races with device state changes because it doesn't lock the device. Use local variable to avoid one repeated dereference. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-02 13:32:45 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
ipv6: do not call ndisc_send_rs() with write lock Because vxlan module will call ip6_dst_lookup() in TX path, which will hold write lock. So we have to release this write lock before calling ndisc_send_rs(), otherwise could deadlock. Reviewed-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-31 13:44:32 +08:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
ipv6: do not call ndisc_send_rs() with write lock Because vxlan module will call ip6_dst_lookup() in TX path, which will hold write lock. So we have to release this write lock before calling ndisc_send_rs(), otherwise could deadlock. Reviewed-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-31 13:44:32 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: do not call ndisc_send_rs() with write lock Because vxlan module will call ip6_dst_lookup() in TX path, which will hold write lock. So we have to release this write lock before calling ndisc_send_rs(), otherwise could deadlock. Reviewed-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-31 13:44:32 +08:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: ipv4 and ipv6: Convert printk(KERN_DEBUG to pr_debug Use the current debugging style and enable dynamic_debug. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-15 14:11:54 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
ipv6: do not call ndisc_send_rs() with write lock Because vxlan module will call ip6_dst_lookup() in TX path, which will hold write lock. So we have to release this write lock before calling ndisc_send_rs(), otherwise could deadlock. Reviewed-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-31 13:44:32 +08:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Defer IPv6 device initialization until the link becomes ready. NETDEV_UP might be sent even if the link attached to the interface was not ready. DAD does not make sense in such case, so we won't do so. After interface Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:24 +09:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
net: replace macros net_random and net_srandom with direct calls to prandom This patch removes the net_random and net_srandom macros and replaces them with direct calls to the prandom ones. As new commits only seem to use prandom_u32 there is no use to keep them around. This change makes it easier to grep for users of prandom_u32. Signed-off-by: Aruna-Hewapathirane <aruna.hewapathirane@gmail.com> Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-11 07:15:59 -05:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
[IPV6]: Defer IPv6 device initialization until the link becomes ready. NETDEV_UP might be sent even if the link attached to the interface was not ready. DAD does not make sense in such case, so we won't do so. After interface Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:24 +09:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: addrconf: Fix recursive spin lock call [ Upstream commit 16186a82de1fdd868255448274e64ae2616e2640 ] A rcu stall with the following backtrace was seen on a system with forwarding, optimistic_dad and use_optimistic set. To reproduce, set these flags and allow ipv6 autoconf. This occurs because the device write_lock is acquired while already holding the read_lock. Back trace below - INFO: rcu_preempt self-detected stall on CPU { 1} (t=2100 jiffies g=3992 c=3991 q=4471) <6> Task dump for CPU 1: <2> kworker/1:0 R running task 12168 15 2 0x00000002 <2> Workqueue: ipv6_addrconf addrconf_dad_work <6> Call trace: <2> [<ffffffc000084da8>] el1_irq+0x68/0xdc <2> [<ffffffc000cc4e0c>] _raw_write_lock_bh+0x20/0x30 <2> [<ffffffc000bc5dd8>] __ipv6_dev_ac_inc+0x64/0x1b4 <2> [<ffffffc000bcbd2c>] addrconf_join_anycast+0x9c/0xc4 <2> [<ffffffc000bcf9f0>] __ipv6_ifa_notify+0x160/0x29c <2> [<ffffffc000bcfb7c>] ipv6_ifa_notify+0x50/0x70 <2> [<ffffffc000bd035c>] addrconf_dad_work+0x314/0x334 <2> [<ffffffc0000b64c8>] process_one_work+0x244/0x3fc <2> [<ffffffc0000b7324>] worker_thread+0x2f8/0x418 <2> [<ffffffc0000bb40c>] kthread+0xe0/0xec v2: do addrconf_dad_kick inside read lock and then acquire write lock for ipv6_ifa_notify as suggested by Eric Fixes: 7fd2561e4ebdd ("net: ipv6: Add a sysctl to make optimistic addresses useful candidates") Cc: Eric Dumazet <edumazet@google.com> Cc: Erik Kline <ek@google.com> Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-02 02:11:10 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: replace macros net_random and net_srandom with direct calls to prandom This patch removes the net_random and net_srandom macros and replaces them with direct calls to the prandom ones. As new commits only seem to use prandom_u32 there is no use to keep them around. This change makes it easier to grep for users of prandom_u32. Signed-off-by: Aruna-Hewapathirane <aruna.hewapathirane@gmail.com> Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-11 07:15:59 -05:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Never schedule DAD timer on dead address This patch ensures that all places that schedule the DAD timer look at the address state in a safe manner before scheduling the timer. This ensures that we don't end up with pending timers after deleting an address. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-18 15:56:06 -07:00
ipv6: Replace inet6_ifaddr->dead with state This patch replaces the boolean dead flag on inet6_ifaddr with a state enum. This allows us to roll back changes when deleting an address according to whether DAD has completed or not. This patch only adds the state field and does not change the logic. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-18 15:36:06 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: add accept_dad sysctl to control DAD operation. - If 0, disable DAD. - If 1, perform DAD (default). - If >1, perform DAD and disable IPv6 operation if DAD for MAC-based link-local address has been failed (RFC4862 5.4.5). We do not follow RFC4862 by default. Refer to the netdev thread entitled "Linux IPv6 DAD not full conform to RFC 4862 ?" http://www.spinics.net/lists/netdev/msg52027.html Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-28 14:18:38 +09:00
[IPV6] ADDRCONF: Allow non-DAD'able addresses. IFA_F_NODAD flag, similar to IN6_IFF_NODAD in BSDs, is introduced to skip DAD. This flag should be set to Mobile IPv6 Home Address(es) on Mobile Node because DAD would fail if we should perform DAD; our Home Agent protects our Home Address(es). Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:45:27 -07:00
ipv6: Add IFA_F_DADFAILED flag Add IFA_F_DADFAILED flag to denote an IPv6 address that has failed Duplicate Address Detection, that way tools like /sbin/ip can be more informative. 3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000 inet6 2001:db8::1/64 scope global tentative dadfailed valid_lft forever preferred_lft forever Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-09 14:41:32 +00:00
IPv6: remove trivial nested _bh suffix Don't need to disable bottom half it is already down in the previous lock. Move some blank lines to group locking in same context. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-08 19:48:52 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Fix addrconf dead lock. We need to release idev->lcok before we call addrconf_dad_stop(). It calls ipv6_addr_del(), which will hold idev->lock. Bug spotted by Yasuyuki KOZAKAI <yasuyuki.kozakai@toshiba.co.jp>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-27 13:35:15 -08:00
IPv6: remove trivial nested _bh suffix Don't need to disable bottom half it is already down in the previous lock. Move some blank lines to group locking in same context. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-08 19:48:52 +00:00
[IPV6]: Fix addrconf dead lock. We need to release idev->lcok before we call addrconf_dad_stop(). It calls ipv6_addr_del(), which will hold idev->lock. Bug spotted by Yasuyuki KOZAKAI <yasuyuki.kozakai@toshiba.co.jp>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-27 13:35:15 -08:00
[IPV6]: Defer IPv6 device initialization until the link becomes ready. NETDEV_UP might be sent even if the link attached to the interface was not ready. DAD does not make sense in such case, so we won't do so. After interface Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:24 +09:00
trivial: Fix a typo in comment of addrconf_dad_start() Signed-off-by: Masatake YAMATO <yamato@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-06-09 10:41:12 +09:00
[IPV6]: Defer IPv6 device initialization until the link becomes ready. NETDEV_UP might be sent even if the link attached to the interface was not ready. DAD does not make sense in such case, so we won't do so. After interface Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:24 +09:00
ipv6: Add IFA_F_DADFAILED flag Add IFA_F_DADFAILED flag to denote an IPv6 address that has failed Duplicate Address Detection, that way tools like /sbin/ip can be more informative. 3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000 inet6 2001:db8::1/64 scope global tentative dadfailed valid_lft forever preferred_lft forever Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-09 14:41:32 +00:00
[IPV6]: Fix addrconf dead lock. We need to release idev->lcok before we call addrconf_dad_stop(). It calls ipv6_addr_del(), which will hold idev->lock. Bug spotted by Yasuyuki KOZAKAI <yasuyuki.kozakai@toshiba.co.jp>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-27 13:35:15 -08:00
[IPV6]: Defer IPv6 device initialization until the link becomes ready. NETDEV_UP might be sent even if the link attached to the interface was not ready. DAD does not make sense in such case, so we won't do so. After interface Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:24 +09:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
net: ipv6: Add a sysctl to make optimistic addresses useful candidates Add a sysctl that causes an interface's optimistic addresses to be considered equivalent to other non-deprecated addresses for source address selection purposes. Preferred addresses will still take precedence over optimistic addresses, subject to other ranking in the source address selection algorithm. This is useful where different interfaces are connected to different networks from different ISPs (e.g., a cell network and a home wifi network). The current behaviour complies with RFC 3484/6724, and it makes sense if the host has only one interface, or has multiple interfaces on the same network (same or cooperating administrative domain(s), but not in the multiple distinct networks case. For example, if a mobile device has an IPv6 address on an LTE network and then connects to IPv6-enabled wifi, while the wifi IPv6 address is undergoing DAD, IPv6 connections will try use the wifi default route with the LTE IPv6 address, and will get stuck until they time out. Also, because optimistic nodes can receive frames, issue an RTM_NEWADDR as soon as DAD starts (with the IFA_F_OPTIMSTIC flag appropriately set). A second RTM_NEWADDR is sent if DAD completes (the address flags have changed), otherwise an RTM_DELADDR is sent. Also: add an entry in ip-sysctl.txt for optimistic_dad. Signed-off-by: Erik Kline <ek@google.com> Acked-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-28 18:11:14 +09:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
net: ipv6: Add a sysctl to make optimistic addresses useful candidates Add a sysctl that causes an interface's optimistic addresses to be considered equivalent to other non-deprecated addresses for source address selection purposes. Preferred addresses will still take precedence over optimistic addresses, subject to other ranking in the source address selection algorithm. This is useful where different interfaces are connected to different networks from different ISPs (e.g., a cell network and a home wifi network). The current behaviour complies with RFC 3484/6724, and it makes sense if the host has only one interface, or has multiple interfaces on the same network (same or cooperating administrative domain(s), but not in the multiple distinct networks case. For example, if a mobile device has an IPv6 address on an LTE network and then connects to IPv6-enabled wifi, while the wifi IPv6 address is undergoing DAD, IPv6 connections will try use the wifi default route with the LTE IPv6 address, and will get stuck until they time out. Also, because optimistic nodes can receive frames, issue an RTM_NEWADDR as soon as DAD starts (with the IFA_F_OPTIMSTIC flag appropriately set). A second RTM_NEWADDR is sent if DAD completes (the address flags have changed), otherwise an RTM_DELADDR is sent. Also: add an entry in ip-sysctl.txt for optimistic_dad. Signed-off-by: Erik Kline <ek@google.com> Acked-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-28 18:11:14 +09:00
ipv6: addrconf: Fix recursive spin lock call [ Upstream commit 16186a82de1fdd868255448274e64ae2616e2640 ] A rcu stall with the following backtrace was seen on a system with forwarding, optimistic_dad and use_optimistic set. To reproduce, set these flags and allow ipv6 autoconf. This occurs because the device write_lock is acquired while already holding the read_lock. Back trace below - INFO: rcu_preempt self-detected stall on CPU { 1} (t=2100 jiffies g=3992 c=3991 q=4471) <6> Task dump for CPU 1: <2> kworker/1:0 R running task 12168 15 2 0x00000002 <2> Workqueue: ipv6_addrconf addrconf_dad_work <6> Call trace: <2> [<ffffffc000084da8>] el1_irq+0x68/0xdc <2> [<ffffffc000cc4e0c>] _raw_write_lock_bh+0x20/0x30 <2> [<ffffffc000bc5dd8>] __ipv6_dev_ac_inc+0x64/0x1b4 <2> [<ffffffc000bcbd2c>] addrconf_join_anycast+0x9c/0xc4 <2> [<ffffffc000bcf9f0>] __ipv6_ifa_notify+0x160/0x29c <2> [<ffffffc000bcfb7c>] ipv6_ifa_notify+0x50/0x70 <2> [<ffffffc000bd035c>] addrconf_dad_work+0x314/0x334 <2> [<ffffffc0000b64c8>] process_one_work+0x244/0x3fc <2> [<ffffffc0000b7324>] worker_thread+0x2f8/0x418 <2> [<ffffffc0000bb40c>] kthread+0xe0/0xec v2: do addrconf_dad_kick inside read lock and then acquire write lock for ipv6_ifa_notify as suggested by Eric Fixes: 7fd2561e4ebdd ("net: ipv6: Add a sysctl to make optimistic addresses useful candidates") Cc: Eric Dumazet <edumazet@google.com> Cc: Erik Kline <ek@google.com> Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-02 02:11:10 +00:00
net: ipv6: Add a sysctl to make optimistic addresses useful candidates Add a sysctl that causes an interface's optimistic addresses to be considered equivalent to other non-deprecated addresses for source address selection purposes. Preferred addresses will still take precedence over optimistic addresses, subject to other ranking in the source address selection algorithm. This is useful where different interfaces are connected to different networks from different ISPs (e.g., a cell network and a home wifi network). The current behaviour complies with RFC 3484/6724, and it makes sense if the host has only one interface, or has multiple interfaces on the same network (same or cooperating administrative domain(s), but not in the multiple distinct networks case. For example, if a mobile device has an IPv6 address on an LTE network and then connects to IPv6-enabled wifi, while the wifi IPv6 address is undergoing DAD, IPv6 connections will try use the wifi default route with the LTE IPv6 address, and will get stuck until they time out. Also, because optimistic nodes can receive frames, issue an RTM_NEWADDR as soon as DAD starts (with the IFA_F_OPTIMSTIC flag appropriately set). A second RTM_NEWADDR is sent if DAD completes (the address flags have changed), otherwise an RTM_DELADDR is sent. Also: add an entry in ip-sysctl.txt for optimistic_dad. Signed-off-by: Erik Kline <ek@google.com> Acked-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-28 18:11:14 +09:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
[IPV6]: Fix addrconf dead lock. We need to release idev->lcok before we call addrconf_dad_stop(). It calls ipv6_addr_del(), which will hold idev->lock. Bug spotted by Yasuyuki KOZAKAI <yasuyuki.kozakai@toshiba.co.jp>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-27 13:35:15 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Never schedule DAD timer on dead address This patch ensures that all places that schedule the DAD timer look at the address state in a safe manner before scheduling the timer. This ensures that we don't end up with pending timers after deleting an address. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-18 15:56:06 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: addrconf: Fix recursive spin lock call [ Upstream commit 16186a82de1fdd868255448274e64ae2616e2640 ] A rcu stall with the following backtrace was seen on a system with forwarding, optimistic_dad and use_optimistic set. To reproduce, set these flags and allow ipv6 autoconf. This occurs because the device write_lock is acquired while already holding the read_lock. Back trace below - INFO: rcu_preempt self-detected stall on CPU { 1} (t=2100 jiffies g=3992 c=3991 q=4471) <6> Task dump for CPU 1: <2> kworker/1:0 R running task 12168 15 2 0x00000002 <2> Workqueue: ipv6_addrconf addrconf_dad_work <6> Call trace: <2> [<ffffffc000084da8>] el1_irq+0x68/0xdc <2> [<ffffffc000cc4e0c>] _raw_write_lock_bh+0x20/0x30 <2> [<ffffffc000bc5dd8>] __ipv6_dev_ac_inc+0x64/0x1b4 <2> [<ffffffc000bcbd2c>] addrconf_join_anycast+0x9c/0xc4 <2> [<ffffffc000bcf9f0>] __ipv6_ifa_notify+0x160/0x29c <2> [<ffffffc000bcfb7c>] ipv6_ifa_notify+0x50/0x70 <2> [<ffffffc000bd035c>] addrconf_dad_work+0x314/0x334 <2> [<ffffffc0000b64c8>] process_one_work+0x244/0x3fc <2> [<ffffffc0000b7324>] worker_thread+0x2f8/0x418 <2> [<ffffffc0000bb40c>] kthread+0xe0/0xec v2: do addrconf_dad_kick inside read lock and then acquire write lock for ipv6_ifa_notify as suggested by Eric Fixes: 7fd2561e4ebdd ("net: ipv6: Add a sysctl to make optimistic addresses useful candidates") Cc: Eric Dumazet <edumazet@google.com> Cc: Erik Kline <ek@google.com> Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-02 02:11:10 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
ipv6: collapse state_lock and lock Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:03 +01:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
ipv6: collapse state_lock and lock Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:03 +01:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
ipv6: collapse state_lock and lock Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:03 +01:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
ipv6: collapse state_lock and lock Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:03 +01:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
ipv6: Use POSTDAD state This patch makes use of the new POSTDAD state. This prevents a race between DAD completion and failure. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-18 15:55:27 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
IPv6: addrconf dad timer unnecessary bh_disable Timer code runs in bottom half, so there is no need for using _bh form of locking. Also check if device is not ready to avoid race with address that is no longer active. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-02 13:32:44 +00:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: remove trivial nested _bh suffix Don't need to disable bottom half it is already down in the previous lock. Move some blank lines to group locking in same context. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-08 19:48:52 +00:00
ipv6: Never schedule DAD timer on dead address This patch ensures that all places that schedule the DAD timer look at the address state in a safe manner before scheduling the timer. This ensures that we don't end up with pending timers after deleting an address. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-18 15:56:06 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
ipv6: Never schedule DAD timer on dead address This patch ensures that all places that schedule the DAD timer look at the address state in a safe manner before scheduling the timer. This ensures that we don't end up with pending timers after deleting an address. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-18 15:56:06 -07:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Add IFA_F_DADFAILED flag Add IFA_F_DADFAILED flag to denote an IPv6 address that has failed Duplicate Address Detection, that way tools like /sbin/ip can be more informative. 3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000 inet6 2001:db8::1/64 scope global tentative dadfailed valid_lft forever preferred_lft forever Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-09 14:41:32 +00:00
IPv6: remove trivial nested _bh suffix Don't need to disable bottom half it is already down in the previous lock. Move some blank lines to group locking in same context. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-08 19:48:52 +00:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
IPv6: remove trivial nested _bh suffix Don't need to disable bottom half it is already down in the previous lock. Move some blank lines to group locking in same context. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-08 19:48:52 +00:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
Revert "ipv6: ndisc: inherit metadata dst when creating ndisc requests" This reverts commit ab450605b35caa768ca33e86db9403229bf42be4. In IPv6, we cannot inherit the dst of the original dst. ndisc packets are IPv6 packets and may take another route than the original packet. This patch breaks the following scenario: a packet comes from eth0 and is forwarded through vxlan1. The encapsulated packet triggers an NS which cannot be sent because of the wrong route. CC: Jiri Benc <jbenc@redhat.com> CC: Thomas Graf <tgraf@suug.ch> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-27 18:17:05 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: simplify detection of first operational link-local address on interface In commit 1ec047eb4751e3 ("ipv6: introduce per-interface counter for dad-completed ipv6 addresses") I build the detection of the first operational link-local address much to complex. Additionally this code now has a race condition. Replace it with a much simpler variant, which just scans the address list when duplicate address detection completes, to check if this is the first valid link local address and send RS and MLD reports then. Fixes: 1ec047eb4751e3 ("ipv6: introduce per-interface counter for dad-completed ipv6 addresses") Reported-by: Jiri Pirko <jiri@resnulli.us> Cc: Flavio Leitner <fbl@redhat.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Flavio Leitner <fbl@redhat.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-16 20:13:04 +01:00
ipv6: optimize link local address search ipv6_link_dev_addr sorts newly added addresses by scope in ifp->addr_list. Smaller scope addresses are added to the tail of the list. Use this fact to iterate in reverse over addr_list and break out as soon as a higher scoped one showes up, so we can spare some cycles on machines with lot's of addresses. The ordering of the addresses is not relevant and we are more likely to get the eui64 generated address with this change anyway. Suggested-by: Brian Haley <brian.haley@hp.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-19 21:58:19 +01:00
ipv6: simplify detection of first operational link-local address on interface In commit 1ec047eb4751e3 ("ipv6: introduce per-interface counter for dad-completed ipv6 addresses") I build the detection of the first operational link-local address much to complex. Additionally this code now has a race condition. Replace it with a much simpler variant, which just scans the address list when duplicate address detection completes, to check if this is the first valid link local address and send RS and MLD reports then. Fixes: 1ec047eb4751e3 ("ipv6: introduce per-interface counter for dad-completed ipv6 addresses") Reported-by: Jiri Pirko <jiri@resnulli.us> Cc: Flavio Leitner <fbl@redhat.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Flavio Leitner <fbl@redhat.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-16 20:13:04 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
ipv6: resend MLD report if a link-local address completes DAD RFC3590/RFC3810 specifies we should resend MLD reports as soon as a valid link-local address is available. We now use the valid_ll_addr_cnt to check if it is necessary to resend a new report. Changes since Flavio Leitner's version: a) adapt for valid_ll_addr_cnt b) resend first reports directly in the path and just arm the timer for mc_qrv-1 resends. Reported-by: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-27 00:07:01 +02:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Send ICMPv6 RSes only when RAs are accepted This patch improves the logic determining when to send ICMPv6 Router Solicitations, so that they are 1) always sent when the kernel is accepting Router Advertisements, and 2) never sent when the kernel is not accepting RAs. In other words, the operational setting of the "accept_ra" sysctl is used. The change also makes the special "Hybrid Router" forwarding mode ("forwarding" sysctl set to 2) operate exactly the same as the standard Router mode (forwarding=1). The only difference between the two was that RSes was being sent in the Hybrid Router mode only. The sysctl documentation describing the special Hybrid Router mode has therefore been removed. Rationale for the change: Currently, the value of forwarding sysctl is the only thing determining whether or not to send RSes. If it has the value 0 or 2, they are sent, otherwise they are not. This leads to inconsistent behaviour in the following cases: * accept_ra=0, forwarding=0 * accept_ra=0, forwarding=2 * accept_ra=1, forwarding=2 * accept_ra=2, forwarding=1 In the first three cases, the kernel will send RSes, even though it will not accept any RAs received in reply. In the last case, it will not send any RSes, even though it will accept and process any RAs received. (Most routers will send unsolicited RAs periodically, so suppressing RSes in the last case will merely delay auto-configuration, not prevent it.) Also, it is my opinion that having the forwarding sysctl control RS sending behaviour (completely independent of whether RAs are being accepted or not) is simply not what most users would intuitively expect to be the case. Signed-off-by: Tore Anderson <tore@fud.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-28 23:47:33 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: introduce per-interface counter for dad-completed ipv6 addresses To reduce the number of unnecessary router solicitations, MLDv2 and IGMPv3 messages we need to track the number of valid (as in non-optimistic, no-dad-failed and non-tentative) link-local addresses. Therefore, this patch implements a valid_ll_addr_cnt in struct inet6_dev. We now only emit router solicitations if the first link-local address finishes duplicate address detection. The changes for MLDv2 and IGMPv3 are in a follow-up patch. While there, also simplify one if statement(one minor nit I made in one of my previous patches): if (!...) do(); else return; <<into>> if (...) return; do(); Cc: Flavio Leitner <fbl@redhat.com> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Suggested-by: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-27 00:06:56 +02:00
ipv6: simplify detection of first operational link-local address on interface In commit 1ec047eb4751e3 ("ipv6: introduce per-interface counter for dad-completed ipv6 addresses") I build the detection of the first operational link-local address much to complex. Additionally this code now has a race condition. Replace it with a much simpler variant, which just scans the address list when duplicate address detection completes, to check if this is the first valid link local address and send RS and MLD reports then. Fixes: 1ec047eb4751e3 ("ipv6: introduce per-interface counter for dad-completed ipv6 addresses") Reported-by: Jiri Pirko <jiri@resnulli.us> Cc: Flavio Leitner <fbl@redhat.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Flavio Leitner <fbl@redhat.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-16 20:13:04 +01:00
ipv6: resend MLD report if a link-local address completes DAD RFC3590/RFC3810 specifies we should resend MLD reports as soon as a valid link-local address is available. We now use the valid_ll_addr_cnt to check if it is necessary to resend a new report. Changes since Flavio Leitner's version: a) adapt for valid_ll_addr_cnt b) resend first reports directly in the path and just arm the timer for mc_qrv-1 resends. Reported-by: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-27 00:07:01 +02:00
ipv6: introduce per-interface counter for dad-completed ipv6 addresses To reduce the number of unnecessary router solicitations, MLDv2 and IGMPv3 messages we need to track the number of valid (as in non-optimistic, no-dad-failed and non-tentative) link-local addresses. Therefore, this patch implements a valid_ll_addr_cnt in struct inet6_dev. We now only emit router solicitations if the first link-local address finishes duplicate address detection. The changes for MLDv2 and IGMPv3 are in a follow-up patch. While there, also simplify one if statement(one minor nit I made in one of my previous patches): if (!...) do(); else return; <<into>> if (...) return; do(); Cc: Flavio Leitner <fbl@redhat.com> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Suggested-by: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-27 00:06:56 +02:00
ipv6: resend MLD report if a link-local address completes DAD RFC3590/RFC3810 specifies we should resend MLD reports as soon as a valid link-local address is available. We now use the valid_ll_addr_cnt to check if it is necessary to resend a new report. Changes since Flavio Leitner's version: a) adapt for valid_ll_addr_cnt b) resend first reports directly in the path and just arm the timer for mc_qrv-1 resends. Reported-by: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-27 00:07:01 +02:00
ipv6: introduce per-interface counter for dad-completed ipv6 addresses To reduce the number of unnecessary router solicitations, MLDv2 and IGMPv3 messages we need to track the number of valid (as in non-optimistic, no-dad-failed and non-tentative) link-local addresses. Therefore, this patch implements a valid_ll_addr_cnt in struct inet6_dev. We now only emit router solicitations if the first link-local address finishes duplicate address detection. The changes for MLDv2 and IGMPv3 are in a follow-up patch. While there, also simplify one if statement(one minor nit I made in one of my previous patches): if (!...) do(); else return; <<into>> if (...) return; do(); Cc: Flavio Leitner <fbl@redhat.com> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Suggested-by: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-27 00:06:56 +02:00
ipv6: resend MLD report if a link-local address completes DAD RFC3590/RFC3810 specifies we should resend MLD reports as soon as a valid link-local address is available. We now use the valid_ll_addr_cnt to check if it is necessary to resend a new report. Changes since Flavio Leitner's version: a) adapt for valid_ll_addr_cnt b) resend first reports directly in the path and just arm the timer for mc_qrv-1 resends. Reported-by: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-27 00:07:01 +02:00
ipv6: introduce per-interface counter for dad-completed ipv6 addresses To reduce the number of unnecessary router solicitations, MLDv2 and IGMPv3 messages we need to track the number of valid (as in non-optimistic, no-dad-failed and non-tentative) link-local addresses. Therefore, this patch implements a valid_ll_addr_cnt in struct inet6_dev. We now only emit router solicitations if the first link-local address finishes duplicate address detection. The changes for MLDv2 and IGMPv3 are in a follow-up patch. While there, also simplify one if statement(one minor nit I made in one of my previous patches): if (!...) do(); else return; <<into>> if (...) return; do(); Cc: Flavio Leitner <fbl@redhat.com> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Suggested-by: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-27 00:06:56 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: introduce per-interface counter for dad-completed ipv6 addresses To reduce the number of unnecessary router solicitations, MLDv2 and IGMPv3 messages we need to track the number of valid (as in non-optimistic, no-dad-failed and non-tentative) link-local addresses. Therefore, this patch implements a valid_ll_addr_cnt in struct inet6_dev. We now only emit router solicitations if the first link-local address finishes duplicate address detection. The changes for MLDv2 and IGMPv3 are in a follow-up patch. While there, also simplify one if statement(one minor nit I made in one of my previous patches): if (!...) do(); else return; <<into>> if (...) return; do(); Cc: Flavio Leitner <fbl@redhat.com> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Suggested-by: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-27 00:06:56 +02:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
ipv6: introduce per-interface counter for dad-completed ipv6 addresses To reduce the number of unnecessary router solicitations, MLDv2 and IGMPv3 messages we need to track the number of valid (as in non-optimistic, no-dad-failed and non-tentative) link-local addresses. Therefore, this patch implements a valid_ll_addr_cnt in struct inet6_dev. We now only emit router solicitations if the first link-local address finishes duplicate address detection. The changes for MLDv2 and IGMPv3 are in a follow-up patch. While there, also simplify one if statement(one minor nit I made in one of my previous patches): if (!...) do(); else return; <<into>> if (...) return; do(); Cc: Flavio Leitner <fbl@redhat.com> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Suggested-by: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-27 00:06:56 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: split duplicate address detection and router solicitation timer This patch splits the timers for duplicate address detection and router solicitations apart. The router solicitations timer goes into inet6_dev and the dad timer stays in inet6_ifaddr. The reason behind this patch is to reduce the number of unneeded router solicitations send out by the host if additional link-local addresses are created. Currently we send out RS for every link-local address on an interface. If the RS timer fires we pick a source address with ipv6_get_lladdr. This change could hurt people adding additional link-local addresses and specifying these addresses in the radvd clients section because we no longer guarantee that we use every ll address as source address in router solicitations. Cc: Flavio Leitner <fleitner@redhat.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-23 18:39:01 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
[IPV6]: Run DAD when the link becomes ready. If the link was not available when the interface was created, run DAD for pending tentative addresses when the link becomes ready. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:44 +09:00
ipv6: convert idev_list to list macros Convert to list macro's for the list of addresses per interface in IPv6. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:13 +00:00
IPv6: remove trivial nested _bh suffix Don't need to disable bottom half it is already down in the previous lock. Move some blank lines to group locking in same context. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-08 19:48:52 +00:00
ipv6: Use POSTDAD state This patch makes use of the new POSTDAD state. This prevents a race between DAD completion and failure. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-18 15:55:27 -07:00
IPv6: remove trivial nested _bh suffix Don't need to disable bottom half it is already down in the previous lock. Move some blank lines to group locking in same context. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-08 19:48:52 +00:00
[IPV6]: Run DAD when the link becomes ready. If the link was not available when the interface was created, run DAD for pending tentative addresses when the link becomes ready. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-12-21 22:57:44 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETNS][IPV6]: inet6_addr - isolate inet6 addresses from proc file Make /proc/net/if_inet6 show only inet6 addresses belonging to the namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 22:42:49 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6/addrconf: speedup /proc/net/if_inet6 filling This ensures a linear behaviour when filling /proc/net/if_inet6 thus making ifconfig run really fast on IPv6 only addresses. In fact, with this patch and the IPv4 one sent a while ago, ifconfig will run in linear time regardless of address type. IPv4 related patch: f04565ddf52e401880f8ba51de0dff8ba51c99fd dev: use name hash for dev_seq_ops ... Some statistics (running ifconfig > /dev/null on a different setup): iface count / IPv6 no-patch time / IPv6 patched time / IPv4 time ---------------------------------------------------------------- 6250 | 0.23 s | 0.13 s | 0.11 s 12500 | 0.62 s | 0.28 s | 0.22 s 25000 | 2.91 s | 0.57 s | 0.46 s 50000 | 11.37 s | 1.21 s | 0.94 s 128000 | 86.78 s | 3.05 s | 2.54 s Signed-off-by: Mihai Maruseac <mmaruseac@ixiacom.com> Cc: Daniel Baluta <dbaluta@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-03 23:31:35 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6/addrconf: speedup /proc/net/if_inet6 filling This ensures a linear behaviour when filling /proc/net/if_inet6 thus making ifconfig run really fast on IPv6 only addresses. In fact, with this patch and the IPv4 one sent a while ago, ifconfig will run in linear time regardless of address type. IPv4 related patch: f04565ddf52e401880f8ba51de0dff8ba51c99fd dev: use name hash for dev_seq_ops ... Some statistics (running ifconfig > /dev/null on a different setup): iface count / IPv6 no-patch time / IPv6 patched time / IPv4 time ---------------------------------------------------------------- 6250 | 0.23 s | 0.13 s | 0.11 s 12500 | 0.62 s | 0.28 s | 0.22 s 25000 | 2.91 s | 0.57 s | 0.46 s 50000 | 11.37 s | 1.21 s | 0.94 s 128000 | 86.78 s | 3.05 s | 2.54 s Signed-off-by: Mihai Maruseac <mmaruseac@ixiacom.com> Cc: Daniel Baluta <dbaluta@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-03 23:31:35 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] NETNS: Omit seq_net_private->net without CONFIG_NET_NS. Without CONFIG_NET_NS, no namespace other than &init_net exists, no need to store net in seq_net_private. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-26 02:36:06 +09:00
ipv6/addrconf: speedup /proc/net/if_inet6 filling This ensures a linear behaviour when filling /proc/net/if_inet6 thus making ifconfig run really fast on IPv6 only addresses. In fact, with this patch and the IPv4 one sent a while ago, ifconfig will run in linear time regardless of address type. IPv4 related patch: f04565ddf52e401880f8ba51de0dff8ba51c99fd dev: use name hash for dev_seq_ops ... Some statistics (running ifconfig > /dev/null on a different setup): iface count / IPv6 no-patch time / IPv6 patched time / IPv4 time ---------------------------------------------------------------- 6250 | 0.23 s | 0.13 s | 0.11 s 12500 | 0.62 s | 0.28 s | 0.22 s 25000 | 2.91 s | 0.57 s | 0.46 s 50000 | 11.37 s | 1.21 s | 0.94 s 128000 | 86.78 s | 3.05 s | 2.54 s Signed-off-by: Mihai Maruseac <mmaruseac@ixiacom.com> Cc: Daniel Baluta <dbaluta@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-03 23:31:35 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6/addrconf: speedup /proc/net/if_inet6 filling This ensures a linear behaviour when filling /proc/net/if_inet6 thus making ifconfig run really fast on IPv6 only addresses. In fact, with this patch and the IPv4 one sent a while ago, ifconfig will run in linear time regardless of address type. IPv4 related patch: f04565ddf52e401880f8ba51de0dff8ba51c99fd dev: use name hash for dev_seq_ops ... Some statistics (running ifconfig > /dev/null on a different setup): iface count / IPv6 no-patch time / IPv6 patched time / IPv4 time ---------------------------------------------------------------- 6250 | 0.23 s | 0.13 s | 0.11 s 12500 | 0.62 s | 0.28 s | 0.22 s 25000 | 2.91 s | 0.57 s | 0.46 s 50000 | 11.37 s | 1.21 s | 0.94 s 128000 | 86.78 s | 3.05 s | 2.54 s Signed-off-by: Mihai Maruseac <mmaruseac@ixiacom.com> Cc: Daniel Baluta <dbaluta@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-03 23:31:35 +00:00
hlist: drop the node parameter from iterators I'm not sure why, but the hlist for each entry iterators were conceived list_for_each_entry(pos, head, member) The hlist ones were greedy and wanted an extra parameter: hlist_for_each_entry(tpos, pos, head, member) Why did they need an extra pos parameter? I'm not quite sure. Not only they don't really need it, it also prevents the iterator from looking exactly like the list iterator, which is unfortunate. Besides the semantic patch, there was some manual work required: - Fix up the actual hlist iterators in linux/list.h - Fix up the declaration of other iterators based on the hlist ones. - A very small amount of places were using the 'node' parameter, this was modified to use 'obj->member' instead. - Coccinelle didn't handle the hlist_for_each_entry_safe iterator properly, so those had to be fixed up manually. The semantic patch which is mostly the work of Peter Senna Tschudin is here: @@ iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host; type T; expression a,c,d,e; identifier b; statement S; @@ -T b; <+... when != b ( hlist_for_each_entry(a, - b, c, d) S | hlist_for_each_entry_continue(a, - b, c) S | hlist_for_each_entry_from(a, - b, c) S | hlist_for_each_entry_rcu(a, - b, c, d) S | hlist_for_each_entry_rcu_bh(a, - b, c, d) S | hlist_for_each_entry_continue_rcu_bh(a, - b, c) S | for_each_busy_worker(a, c, - b, d) S | ax25_uid_for_each(a, - b, c) S | ax25_for_each(a, - b, c) S | inet_bind_bucket_for_each(a, - b, c) S | sctp_for_each_hentry(a, - b, c) S | sk_for_each(a, - b, c) S | sk_for_each_rcu(a, - b, c) S | sk_for_each_from -(a, b) +(a) S + sk_for_each_from(a) S | sk_for_each_safe(a, - b, c, d) S | sk_for_each_bound(a, - b, c) S | hlist_for_each_entry_safe(a, - b, c, d, e) S | hlist_for_each_entry_continue_rcu(a, - b, c) S | nr_neigh_for_each(a, - b, c) S | nr_neigh_for_each_safe(a, - b, c, d) S | nr_node_for_each(a, - b, c) S | nr_node_for_each_safe(a, - b, c, d) S | - for_each_gfn_sp(a, c, d, b) S + for_each_gfn_sp(a, c, d) S | - for_each_gfn_indirect_valid_sp(a, c, d, b) S + for_each_gfn_indirect_valid_sp(a, c, d) S | for_each_host(a, - b, c) S | for_each_host_safe(a, - b, c, d) S | for_each_mesh_entry(a, - b, c, d) S ) ...+> [akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c] [akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c] [akpm@linux-foundation.org: checkpatch fixes] [akpm@linux-foundation.org: fix warnings] [akpm@linux-foudnation.org: redo intrusive kvm changes] Tested-by: Peter Senna Tschudin <peter.senna@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Gleb Natapov <gleb@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-27 17:06:00 -08:00
ipv6/addrconf: speedup /proc/net/if_inet6 filling This ensures a linear behaviour when filling /proc/net/if_inet6 thus making ifconfig run really fast on IPv6 only addresses. In fact, with this patch and the IPv4 one sent a while ago, ifconfig will run in linear time regardless of address type. IPv4 related patch: f04565ddf52e401880f8ba51de0dff8ba51c99fd dev: use name hash for dev_seq_ops ... Some statistics (running ifconfig > /dev/null on a different setup): iface count / IPv6 no-patch time / IPv6 patched time / IPv4 time ---------------------------------------------------------------- 6250 | 0.23 s | 0.13 s | 0.11 s 12500 | 0.62 s | 0.28 s | 0.22 s 25000 | 2.91 s | 0.57 s | 0.46 s 50000 | 11.37 s | 1.21 s | 0.94 s 128000 | 86.78 s | 3.05 s | 2.54 s Signed-off-by: Mihai Maruseac <mmaruseac@ixiacom.com> Cc: Daniel Baluta <dbaluta@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-03 23:31:35 +00:00
ipv6: addrconf: fix /proc/net/if_inet6 Commit 1d5783030a1 (ipv6/addrconf: speedup /proc/net/if_inet6 filling) added bugs hiding some devices from if_inet6 and breaking applications. "ip -6 addr" could still display all IPv6 addresses, while "ifconfig -a" couldnt. One way to reproduce the bug is by starting in a shell : unshare -n /bin/bash ifconfig lo up And in original net namespace, lo device disappeared from if_inet6 Reported-by: Jan Hinnerk Stosch <janhinnerk.stosch@gmail.com> Tested-by: Jan Hinnerk Stosch <janhinnerk.stosch@gmail.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Mihai Maruseac <mihai.maruseac@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-16 07:37:27 +00:00
ipv6/addrconf: speedup /proc/net/if_inet6 filling This ensures a linear behaviour when filling /proc/net/if_inet6 thus making ifconfig run really fast on IPv6 only addresses. In fact, with this patch and the IPv4 one sent a while ago, ifconfig will run in linear time regardless of address type. IPv4 related patch: f04565ddf52e401880f8ba51de0dff8ba51c99fd dev: use name hash for dev_seq_ops ... Some statistics (running ifconfig > /dev/null on a different setup): iface count / IPv6 no-patch time / IPv6 patched time / IPv4 time ---------------------------------------------------------------- 6250 | 0.23 s | 0.13 s | 0.11 s 12500 | 0.62 s | 0.28 s | 0.22 s 25000 | 2.91 s | 0.57 s | 0.46 s 50000 | 11.37 s | 1.21 s | 0.94 s 128000 | 86.78 s | 3.05 s | 2.54 s Signed-off-by: Mihai Maruseac <mmaruseac@ixiacom.com> Cc: Daniel Baluta <dbaluta@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-03 23:31:35 +00:00
ipv6: addrconf: fix /proc/net/if_inet6 Commit 1d5783030a1 (ipv6/addrconf: speedup /proc/net/if_inet6 filling) added bugs hiding some devices from if_inet6 and breaking applications. "ip -6 addr" could still display all IPv6 addresses, while "ifconfig -a" couldnt. One way to reproduce the bug is by starting in a shell : unshare -n /bin/bash ifconfig lo up And in original net namespace, lo device disappeared from if_inet6 Reported-by: Jan Hinnerk Stosch <janhinnerk.stosch@gmail.com> Tested-by: Jan Hinnerk Stosch <janhinnerk.stosch@gmail.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Mihai Maruseac <mihai.maruseac@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-16 07:37:27 +00:00
ipv6/addrconf: speedup /proc/net/if_inet6 filling This ensures a linear behaviour when filling /proc/net/if_inet6 thus making ifconfig run really fast on IPv6 only addresses. In fact, with this patch and the IPv4 one sent a while ago, ifconfig will run in linear time regardless of address type. IPv4 related patch: f04565ddf52e401880f8ba51de0dff8ba51c99fd dev: use name hash for dev_seq_ops ... Some statistics (running ifconfig > /dev/null on a different setup): iface count / IPv6 no-patch time / IPv6 patched time / IPv4 time ---------------------------------------------------------------- 6250 | 0.23 s | 0.13 s | 0.11 s 12500 | 0.62 s | 0.28 s | 0.22 s 25000 | 2.91 s | 0.57 s | 0.46 s 50000 | 11.37 s | 1.21 s | 0.94 s 128000 | 86.78 s | 3.05 s | 2.54 s Signed-off-by: Mihai Maruseac <mmaruseac@ixiacom.com> Cc: Daniel Baluta <dbaluta@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-03 23:31:35 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: convert addrconf list to hlist Using hash list macros, simplifies code and helps later RCU. This patch includes some initialization that is not strictly necessary, since an empty hlist node/list is all zero; and list is in BSS and node is allocated with kzalloc. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:10 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: convert addrconf list to hlist Using hash list macros, simplifies code and helps later RCU. This patch includes some initialization that is not strictly necessary, since an empty hlist node/list is all zero; and list is in BSS and node is allocated with kzalloc. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:10 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] NETNS: Omit seq_net_private->net without CONFIG_NET_NS. Without CONFIG_NET_NS, no namespace other than &init_net exists, no need to store net in seq_net_private. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-26 02:36:06 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
hlist: drop the node parameter from iterators I'm not sure why, but the hlist for each entry iterators were conceived list_for_each_entry(pos, head, member) The hlist ones were greedy and wanted an extra parameter: hlist_for_each_entry(tpos, pos, head, member) Why did they need an extra pos parameter? I'm not quite sure. Not only they don't really need it, it also prevents the iterator from looking exactly like the list iterator, which is unfortunate. Besides the semantic patch, there was some manual work required: - Fix up the actual hlist iterators in linux/list.h - Fix up the declaration of other iterators based on the hlist ones. - A very small amount of places were using the 'node' parameter, this was modified to use 'obj->member' instead. - Coccinelle didn't handle the hlist_for_each_entry_safe iterator properly, so those had to be fixed up manually. The semantic patch which is mostly the work of Peter Senna Tschudin is here: @@ iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host; type T; expression a,c,d,e; identifier b; statement S; @@ -T b; <+... when != b ( hlist_for_each_entry(a, - b, c, d) S | hlist_for_each_entry_continue(a, - b, c) S | hlist_for_each_entry_from(a, - b, c) S | hlist_for_each_entry_rcu(a, - b, c, d) S | hlist_for_each_entry_rcu_bh(a, - b, c, d) S | hlist_for_each_entry_continue_rcu_bh(a, - b, c) S | for_each_busy_worker(a, c, - b, d) S | ax25_uid_for_each(a, - b, c) S | ax25_for_each(a, - b, c) S | inet_bind_bucket_for_each(a, - b, c) S | sctp_for_each_hentry(a, - b, c) S | sk_for_each(a, - b, c) S | sk_for_each_rcu(a, - b, c) S | sk_for_each_from -(a, b) +(a) S + sk_for_each_from(a) S | sk_for_each_safe(a, - b, c, d) S | sk_for_each_bound(a, - b, c) S | hlist_for_each_entry_safe(a, - b, c, d, e) S | hlist_for_each_entry_continue_rcu(a, - b, c) S | nr_neigh_for_each(a, - b, c) S | nr_neigh_for_each_safe(a, - b, c, d) S | nr_node_for_each(a, - b, c) S | nr_node_for_each_safe(a, - b, c, d) S | - for_each_gfn_sp(a, c, d, b) S + for_each_gfn_sp(a, c, d) S | - for_each_gfn_indirect_valid_sp(a, c, d, b) S + for_each_gfn_indirect_valid_sp(a, c, d) S | for_each_host(a, - b, c) S | for_each_host_safe(a, - b, c, d) S | for_each_mesh_entry(a, - b, c, d) S ) ...+> [akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c] [akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c] [akpm@linux-foundation.org: checkpatch fixes] [akpm@linux-foundation.org: fix warnings] [akpm@linux-foudnation.org: redo intrusive kvm changes] Tested-by: Peter Senna Tschudin <peter.senna@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Gleb Natapov <gleb@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-27 17:06:00 -08:00
ipv6: addrconf: fix /proc/net/if_inet6 Commit 1d5783030a1 (ipv6/addrconf: speedup /proc/net/if_inet6 filling) added bugs hiding some devices from if_inet6 and breaking applications. "ip -6 addr" could still display all IPv6 addresses, while "ifconfig -a" couldnt. One way to reproduce the bug is by starting in a shell : unshare -n /bin/bash ifconfig lo up And in original net namespace, lo device disappeared from if_inet6 Reported-by: Jan Hinnerk Stosch <janhinnerk.stosch@gmail.com> Tested-by: Jan Hinnerk Stosch <janhinnerk.stosch@gmail.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Mihai Maruseac <mihai.maruseac@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-16 07:37:27 +00:00
ipv6/addrconf: speedup /proc/net/if_inet6 filling This ensures a linear behaviour when filling /proc/net/if_inet6 thus making ifconfig run really fast on IPv6 only addresses. In fact, with this patch and the IPv4 one sent a while ago, ifconfig will run in linear time regardless of address type. IPv4 related patch: f04565ddf52e401880f8ba51de0dff8ba51c99fd dev: use name hash for dev_seq_ops ... Some statistics (running ifconfig > /dev/null on a different setup): iface count / IPv6 no-patch time / IPv6 patched time / IPv4 time ---------------------------------------------------------------- 6250 | 0.23 s | 0.13 s | 0.11 s 12500 | 0.62 s | 0.28 s | 0.22 s 25000 | 2.91 s | 0.57 s | 0.46 s 50000 | 11.37 s | 1.21 s | 0.94 s 128000 | 86.78 s | 3.05 s | 2.54 s Signed-off-by: Mihai Maruseac <mmaruseac@ixiacom.com> Cc: Daniel Baluta <dbaluta@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-03 23:31:35 +00:00
ipv6: addrconf: fix /proc/net/if_inet6 Commit 1d5783030a1 (ipv6/addrconf: speedup /proc/net/if_inet6 filling) added bugs hiding some devices from if_inet6 and breaking applications. "ip -6 addr" could still display all IPv6 addresses, while "ifconfig -a" couldnt. One way to reproduce the bug is by starting in a shell : unshare -n /bin/bash ifconfig lo up And in original net namespace, lo device disappeared from if_inet6 Reported-by: Jan Hinnerk Stosch <janhinnerk.stosch@gmail.com> Tested-by: Jan Hinnerk Stosch <janhinnerk.stosch@gmail.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Mihai Maruseac <mihai.maruseac@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-16 07:37:27 +00:00
ipv6/addrconf: speedup /proc/net/if_inet6 filling This ensures a linear behaviour when filling /proc/net/if_inet6 thus making ifconfig run really fast on IPv6 only addresses. In fact, with this patch and the IPv4 one sent a while ago, ifconfig will run in linear time regardless of address type. IPv4 related patch: f04565ddf52e401880f8ba51de0dff8ba51c99fd dev: use name hash for dev_seq_ops ... Some statistics (running ifconfig > /dev/null on a different setup): iface count / IPv6 no-patch time / IPv6 patched time / IPv4 time ---------------------------------------------------------------- 6250 | 0.23 s | 0.13 s | 0.11 s 12500 | 0.62 s | 0.28 s | 0.22 s 25000 | 2.91 s | 0.57 s | 0.46 s 50000 | 11.37 s | 1.21 s | 0.94 s 128000 | 86.78 s | 3.05 s | 2.54 s Signed-off-by: Mihai Maruseac <mmaruseac@ixiacom.com> Cc: Daniel Baluta <dbaluta@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-03 23:31:35 +00:00
ipv6: convert addrconf list to hlist Using hash list macros, simplifies code and helps later RCU. This patch includes some initialization that is not strictly necessary, since an empty hlist node/list is all zero; and list is in BSS and node is allocated with kzalloc. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:10 +00:00
ipv6/addrconf: speedup /proc/net/if_inet6 filling This ensures a linear behaviour when filling /proc/net/if_inet6 thus making ifconfig run really fast on IPv6 only addresses. In fact, with this patch and the IPv4 one sent a while ago, ifconfig will run in linear time regardless of address type. IPv4 related patch: f04565ddf52e401880f8ba51de0dff8ba51c99fd dev: use name hash for dev_seq_ops ... Some statistics (running ifconfig > /dev/null on a different setup): iface count / IPv6 no-patch time / IPv6 patched time / IPv4 time ---------------------------------------------------------------- 6250 | 0.23 s | 0.13 s | 0.11 s 12500 | 0.62 s | 0.28 s | 0.22 s 25000 | 2.91 s | 0.57 s | 0.46 s 50000 | 11.37 s | 1.21 s | 0.94 s 128000 | 86.78 s | 3.05 s | 2.54 s Signed-off-by: Mihai Maruseac <mmaruseac@ixiacom.com> Cc: Daniel Baluta <dbaluta@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-03 23:31:35 +00:00
hlist: drop the node parameter from iterators I'm not sure why, but the hlist for each entry iterators were conceived list_for_each_entry(pos, head, member) The hlist ones were greedy and wanted an extra parameter: hlist_for_each_entry(tpos, pos, head, member) Why did they need an extra pos parameter? I'm not quite sure. Not only they don't really need it, it also prevents the iterator from looking exactly like the list iterator, which is unfortunate. Besides the semantic patch, there was some manual work required: - Fix up the actual hlist iterators in linux/list.h - Fix up the declaration of other iterators based on the hlist ones. - A very small amount of places were using the 'node' parameter, this was modified to use 'obj->member' instead. - Coccinelle didn't handle the hlist_for_each_entry_safe iterator properly, so those had to be fixed up manually. The semantic patch which is mostly the work of Peter Senna Tschudin is here: @@ iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host; type T; expression a,c,d,e; identifier b; statement S; @@ -T b; <+... when != b ( hlist_for_each_entry(a, - b, c, d) S | hlist_for_each_entry_continue(a, - b, c) S | hlist_for_each_entry_from(a, - b, c) S | hlist_for_each_entry_rcu(a, - b, c, d) S | hlist_for_each_entry_rcu_bh(a, - b, c, d) S | hlist_for_each_entry_continue_rcu_bh(a, - b, c) S | for_each_busy_worker(a, c, - b, d) S | ax25_uid_for_each(a, - b, c) S | ax25_for_each(a, - b, c) S | inet_bind_bucket_for_each(a, - b, c) S | sctp_for_each_hentry(a, - b, c) S | sk_for_each(a, - b, c) S | sk_for_each_rcu(a, - b, c) S | sk_for_each_from -(a, b) +(a) S + sk_for_each_from(a) S | sk_for_each_safe(a, - b, c, d) S | sk_for_each_bound(a, - b, c) S | hlist_for_each_entry_safe(a, - b, c, d, e) S | hlist_for_each_entry_continue_rcu(a, - b, c) S | nr_neigh_for_each(a, - b, c) S | nr_neigh_for_each_safe(a, - b, c, d) S | nr_node_for_each(a, - b, c) S | nr_node_for_each_safe(a, - b, c, d) S | - for_each_gfn_sp(a, c, d, b) S + for_each_gfn_sp(a, c, d) S | - for_each_gfn_indirect_valid_sp(a, c, d, b) S + for_each_gfn_indirect_valid_sp(a, c, d) S | for_each_host(a, - b, c) S | for_each_host_safe(a, - b, c, d) S | for_each_mesh_entry(a, - b, c, d) S ) ...+> [akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c] [akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c] [akpm@linux-foundation.org: checkpatch fixes] [akpm@linux-foundation.org: fix warnings] [akpm@linux-foudnation.org: redo intrusive kvm changes] Tested-by: Peter Senna Tschudin <peter.senna@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Gleb Natapov <gleb@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-27 17:06:00 -08:00
ipv6: convert addrconf list to hlist Using hash list macros, simplifies code and helps later RCU. This patch includes some initialization that is not strictly necessary, since an empty hlist node/list is all zero; and list is in BSS and node is allocated with kzalloc. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:10 +00:00
ipv6: addrconf: fix /proc/net/if_inet6 Commit 1d5783030a1 (ipv6/addrconf: speedup /proc/net/if_inet6 filling) added bugs hiding some devices from if_inet6 and breaking applications. "ip -6 addr" could still display all IPv6 addresses, while "ifconfig -a" couldnt. One way to reproduce the bug is by starting in a shell : unshare -n /bin/bash ifconfig lo up And in original net namespace, lo device disappeared from if_inet6 Reported-by: Jan Hinnerk Stosch <janhinnerk.stosch@gmail.com> Tested-by: Jan Hinnerk Stosch <janhinnerk.stosch@gmail.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Mihai Maruseac <mihai.maruseac@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-16 07:37:27 +00:00
ipv6/addrconf: speedup /proc/net/if_inet6 filling This ensures a linear behaviour when filling /proc/net/if_inet6 thus making ifconfig run really fast on IPv6 only addresses. In fact, with this patch and the IPv4 one sent a while ago, ifconfig will run in linear time regardless of address type. IPv4 related patch: f04565ddf52e401880f8ba51de0dff8ba51c99fd dev: use name hash for dev_seq_ops ... Some statistics (running ifconfig > /dev/null on a different setup): iface count / IPv6 no-patch time / IPv6 patched time / IPv4 time ---------------------------------------------------------------- 6250 | 0.23 s | 0.13 s | 0.11 s 12500 | 0.62 s | 0.28 s | 0.22 s 25000 | 2.91 s | 0.57 s | 0.46 s 50000 | 11.37 s | 1.21 s | 0.94 s 128000 | 86.78 s | 3.05 s | 2.54 s Signed-off-by: Mihai Maruseac <mmaruseac@ixiacom.com> Cc: Daniel Baluta <dbaluta@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-03 23:31:35 +00:00
ipv6: addrconf: fix /proc/net/if_inet6 Commit 1d5783030a1 (ipv6/addrconf: speedup /proc/net/if_inet6 filling) added bugs hiding some devices from if_inet6 and breaking applications. "ip -6 addr" could still display all IPv6 addresses, while "ifconfig -a" couldnt. One way to reproduce the bug is by starting in a shell : unshare -n /bin/bash ifconfig lo up And in original net namespace, lo device disappeared from if_inet6 Reported-by: Jan Hinnerk Stosch <janhinnerk.stosch@gmail.com> Tested-by: Jan Hinnerk Stosch <janhinnerk.stosch@gmail.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Mihai Maruseac <mihai.maruseac@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-16 07:37:27 +00:00
[NETNS][IPV6]: inet6_addr - isolate inet6 addresses from proc file Make /proc/net/if_inet6 show only inet6 addresses belonging to the namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 22:42:49 -08:00
ipv6: convert addrconf list to hlist Using hash list macros, simplifies code and helps later RCU. This patch includes some initialization that is not strictly necessary, since an empty hlist node/list is all zero; and list is in BSS and node is allocated with kzalloc. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:10 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: rcu fixes Add hlist_for_each_entry_rcu_bh() and hlist_for_each_entry_continue_rcu_bh() macros, and use them in ipv6_get_ifaddr(), if6_get_first() and if6_get_next() to fix lockdeps warnings. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Reviewed-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-03 10:50:14 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: convert addrconf hash list to RCU Convert from reader/writer lock to RCU and spinlock for addrconf hash list. Adds an additional helper macro for hlist_for_each_entry_continue_rcu to handle the continue case. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:11 +00:00
ipv6/addrconf: speedup /proc/net/if_inet6 filling This ensures a linear behaviour when filling /proc/net/if_inet6 thus making ifconfig run really fast on IPv6 only addresses. In fact, with this patch and the IPv4 one sent a while ago, ifconfig will run in linear time regardless of address type. IPv4 related patch: f04565ddf52e401880f8ba51de0dff8ba51c99fd dev: use name hash for dev_seq_ops ... Some statistics (running ifconfig > /dev/null on a different setup): iface count / IPv6 no-patch time / IPv6 patched time / IPv4 time ---------------------------------------------------------------- 6250 | 0.23 s | 0.13 s | 0.11 s 12500 | 0.62 s | 0.28 s | 0.22 s 25000 | 2.91 s | 0.57 s | 0.46 s 50000 | 11.37 s | 1.21 s | 0.94 s 128000 | 86.78 s | 3.05 s | 2.54 s Signed-off-by: Mihai Maruseac <mmaruseac@ixiacom.com> Cc: Daniel Baluta <dbaluta@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-03 23:31:35 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: rcu fixes Add hlist_for_each_entry_rcu_bh() and hlist_for_each_entry_continue_rcu_bh() macros, and use them in ipv6_get_ifaddr(), if6_get_first() and if6_get_next() to fix lockdeps warnings. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Reviewed-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-03 10:50:14 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: convert addrconf hash list to RCU Convert from reader/writer lock to RCU and spinlock for addrconf hash list. Adds an additional helper macro for hlist_for_each_entry_continue_rcu to handle the continue case. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:11 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: revert /proc/net/if_inet6 ifa_flag format Turned out that applications like ifconfig do not handle the change. So revert ifa_flag format back to 2-letter hex value. Introduced by: commit 479840ffdbe4242e8a25349218c8e0859223aa35 "ipv6 addrconf: extend ifa_flags to u32" Reported-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Tested-by: FLorent Fourcot <florent.fourcot@enst-bretagne.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-10 13:56:29 +01:00
net: replace all current users of NIP6_SEQFMT with %#p6 The define in kernel.h can be done away with at a later time. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-28 16:05:40 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: revert /proc/net/if_inet6 ifa_flag format Turned out that applications like ifconfig do not handle the change. So revert ifa_flag format back to 2-letter hex value. Introduced by: commit 479840ffdbe4242e8a25349218c8e0859223aa35 "ipv6 addrconf: extend ifa_flags to u32" Reported-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Tested-by: FLorent Fourcot <florent.fourcot@enst-bretagne.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-10 13:56:29 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET]: Make all initialized struct seq_operations const. Make all initialized struct seq_operations in net/ const Signed-off-by: Philippe De Muyter <phdm@macqel.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10 23:07:31 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETNS][IPV6]: inet6_addr - isolate inet6 addresses from proc file Make /proc/net/if_inet6 show only inet6 addresses belonging to the namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 22:42:49 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[PATCH] mark struct file_operations const 7 Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 00:55:35 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETNS][IPV6]: inet6_addr - isolate inet6 addresses from proc file Make /proc/net/if_inet6 show only inet6 addresses belonging to the namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 22:42:49 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: spread __net_init, __net_exit __net_init/__net_exit are apparently not going away, so use them to full extent. In some cases __net_init was removed, because it was called from __net_exit code. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-17 03:35:32 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: proc: change proc_net_fops_create to proc_create Right now, some modules such as bonding use proc_create to create proc entries under /proc/net/, and other modules such as ipv4 use proc_net_fops_create. It looks a little chaos.this patch changes all of proc_net_fops_create to proc_create. we can remove proc_net_fops_create after this patch. Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18 01:34:54 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: spread __net_init, __net_exit __net_init/__net_exit are apparently not going away, so use them to full extent. In some cases __net_init was removed, because it was called from __net_exit code. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-17 03:35:32 +00:00
[NETNS][IPV6]: inet6_addr - isolate inet6 addresses from proc file Make /proc/net/if_inet6 show only inet6 addresses belonging to the namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 22:42:49 -08:00
net: proc: change proc_net_remove to remove_proc_entry proc_net_remove is only used to remove proc entries that under /proc/net,it's not a general function for removing proc entries of netns. if we want to remove some proc entries which under /proc/net/stat/, we still need to call remove_proc_entry. this patch use remove_proc_entry to replace proc_net_remove. we can remove proc_net_remove after this patch. Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18 01:34:56 +00:00
[NETNS][IPV6]: inet6_addr - isolate inet6 addresses from proc file Make /proc/net/if_inet6 show only inet6 addresses belonging to the namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 22:42:49 -08:00
ipv6: White-space cleansing : Line Layouts This patch makes no changes to the logic of the code but simply addresses coding style issues as detected by checkpatch. Both objdump and diff -w show no differences. A number of items are addressed in this patch: * Multiple spaces converted to tabs * Spaces before tabs removed. * Spaces in pointer typing cleansed (char *)foo etc. * Remove space after sizeof * Ensure spacing around comparators such as if statements. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-24 21:53:10 +01:00
[NETNS][IPV6]: inet6_addr - isolate inet6 addresses from proc file Make /proc/net/if_inet6 show only inet6 addresses belonging to the namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 22:42:49 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETNS][IPV6]: inet6_addr - isolate inet6 addresses from proc file Make /proc/net/if_inet6 show only inet6 addresses belonging to the namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 22:42:49 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: use IS_ENABLED() #if defined(CONFIG_FOO) || defined(CONFIG_FOO_MODULE) can be replaced by #if IS_ENABLED(CONFIG_FOO) Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-29 16:23:10 +00:00
[IPV6] ADDRCONF: Mobile IPv6 Home Address support. IFA_F_HOMEADDRESS is introduced for Mobile IPv6 Home Addresses on Mobile Node. The IFA_F_HOMEADDRESS flag should be set for Mobile IPv6 Home Addresses for 2 purposes. 1) We need to check this on receipt of Type 2 Routing Header (RFC3775 Secion 6.4), 2) We prefer Home Address(es) in source address selection (RFC3484 Section 5 Rule 4). Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:45:56 -07:00
inet: constify ip headers and in6_addr Add const qualifiers to structs iphdr, ipv6hdr and in6_addr pointers where possible, to make code intention more obvious. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-22 04:53:02 +00:00
[IPV6] ADDRCONF: Mobile IPv6 Home Address support. IFA_F_HOMEADDRESS is introduced for Mobile IPv6 Home Addresses on Mobile Node. The IFA_F_HOMEADDRESS flag should be set for Mobile IPv6 Home Addresses for 2 purposes. 1) We need to check this on receipt of Type 2 Routing Header (RFC3775 Secion 6.4), 2) We prefer Home Address(es) in source address selection (RFC3484 Section 5 Rule 4). Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:45:56 -07:00
ipv6: convert addrconf list to hlist Using hash list macros, simplifies code and helps later RCU. This patch includes some initialization that is not strictly necessary, since an empty hlist node/list is all zero; and list is in BSS and node is allocated with kzalloc. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:10 +00:00
ipv6: add ipv6_addr_hash() helper Introduce ipv6_addr_hash() helper doing a XOR on all bits of an IPv6 address, with an optimized x86_64 version. Use it in flow dissector, as suggested by Andrew McGregor, to reduce hash collision probabilities in fq_codel (and other users of flow dissector) Use it in ip6_tunnel.c and use more bit shuffling, as suggested by David Laight, as existing hash was ignoring most of them. Use it in sunrpc and use more bit shuffling, using hash_32(). Use it in net/ipv6/addrconf.c, using hash_32() as well. As a cleanup, use it in net/ipv4/tcp_metrics.c Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Andrew McGregor <andrewmcgr@gmail.com> Cc: Dave Taht <dave.taht@gmail.com> Cc: Tom Herbert <therbert@google.com> Cc: David Laight <David.Laight@ACULAB.COM> Cc: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-18 08:11:12 +00:00
ipv6: convert addrconf list to hlist Using hash list macros, simplifies code and helps later RCU. This patch includes some initialization that is not strictly necessary, since an empty hlist node/list is all zero; and list is in BSS and node is allocated with kzalloc. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:10 +00:00
IPv6: convert addrconf hash list to RCU Convert from reader/writer lock to RCU and spinlock for addrconf hash list. Adds an additional helper macro for hlist_for_each_entry_continue_rcu to handle the continue case. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:11 +00:00
hlist: drop the node parameter from iterators I'm not sure why, but the hlist for each entry iterators were conceived list_for_each_entry(pos, head, member) The hlist ones were greedy and wanted an extra parameter: hlist_for_each_entry(tpos, pos, head, member) Why did they need an extra pos parameter? I'm not quite sure. Not only they don't really need it, it also prevents the iterator from looking exactly like the list iterator, which is unfortunate. Besides the semantic patch, there was some manual work required: - Fix up the actual hlist iterators in linux/list.h - Fix up the declaration of other iterators based on the hlist ones. - A very small amount of places were using the 'node' parameter, this was modified to use 'obj->member' instead. - Coccinelle didn't handle the hlist_for_each_entry_safe iterator properly, so those had to be fixed up manually. The semantic patch which is mostly the work of Peter Senna Tschudin is here: @@ iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host; type T; expression a,c,d,e; identifier b; statement S; @@ -T b; <+... when != b ( hlist_for_each_entry(a, - b, c, d) S | hlist_for_each_entry_continue(a, - b, c) S | hlist_for_each_entry_from(a, - b, c) S | hlist_for_each_entry_rcu(a, - b, c, d) S | hlist_for_each_entry_rcu_bh(a, - b, c, d) S | hlist_for_each_entry_continue_rcu_bh(a, - b, c) S | for_each_busy_worker(a, c, - b, d) S | ax25_uid_for_each(a, - b, c) S | ax25_for_each(a, - b, c) S | inet_bind_bucket_for_each(a, - b, c) S | sctp_for_each_hentry(a, - b, c) S | sk_for_each(a, - b, c) S | sk_for_each_rcu(a, - b, c) S | sk_for_each_from -(a, b) +(a) S + sk_for_each_from(a) S | sk_for_each_safe(a, - b, c, d) S | sk_for_each_bound(a, - b, c) S | hlist_for_each_entry_safe(a, - b, c, d, e) S | hlist_for_each_entry_continue_rcu(a, - b, c) S | nr_neigh_for_each(a, - b, c) S | nr_neigh_for_each_safe(a, - b, c, d) S | nr_node_for_each(a, - b, c) S | nr_node_for_each_safe(a, - b, c, d) S | - for_each_gfn_sp(a, c, d, b) S + for_each_gfn_sp(a, c, d) S | - for_each_gfn_indirect_valid_sp(a, c, d, b) S + for_each_gfn_indirect_valid_sp(a, c, d) S | for_each_host(a, - b, c) S | for_each_host_safe(a, - b, c, d) S | for_each_mesh_entry(a, - b, c, d) S ) ...+> [akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c] [akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c] [akpm@linux-foundation.org: checkpatch fixes] [akpm@linux-foundation.org: fix warnings] [akpm@linux-foudnation.org: redo intrusive kvm changes] Tested-by: Peter Senna Tschudin <peter.senna@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Gleb Natapov <gleb@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-27 17:06:00 -08:00
[NET] NETNS: Omit namespace comparision without CONFIG_NET_NS. Introduce an inline net_eq() to compare two namespaces. Without CONFIG_NET_NS, since no namespace other than &init_net exists, it is always 1. We do not need to convert 1) inline vs inline and 2) inline vs &init_net comparisons. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-26 03:57:35 +09:00
[NETNS][IPV6]: inet6_addr - make ipv6_chk_home_addr namespace aware Looks if the address is belonging to the network namespace, otherwise discard the address for the check. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 22:44:40 -08:00
[IPV6]: Use ipv6_addr_equal() instead of !ipv6_addr_cmp(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-10 15:42:07 +09:00
[IPV6] ADDRCONF: Mobile IPv6 Home Address support. IFA_F_HOMEADDRESS is introduced for Mobile IPv6 Home Addresses on Mobile Node. The IFA_F_HOMEADDRESS flag should be set for Mobile IPv6 Home Addresses for 2 purposes. 1) We need to check this on receipt of Type 2 Routing Header (RFC3775 Secion 6.4), 2) We prefer Home Address(es) in source address selection (RFC3484 Section 5 Rule 4). Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:45:56 -07:00
IPv6: convert addrconf hash list to RCU Convert from reader/writer lock to RCU and spinlock for addrconf hash list. Adds an additional helper macro for hlist_for_each_entry_continue_rcu to handle the continue case. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:11 +00:00
[IPV6] ADDRCONF: Mobile IPv6 Home Address support. IFA_F_HOMEADDRESS is introduced for Mobile IPv6 Home Addresses on Mobile Node. The IFA_F_HOMEADDRESS flag should be set for Mobile IPv6 Home Addresses for 2 purposes. 1) We need to check this on receipt of Type 2 Routing Header (RFC3775 Secion 6.4), 2) We prefer Home Address(es) in source address selection (RFC3484 Section 5 Rule 4). Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:45:56 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Reduce timer events for addrconf_verify(). This patch reduces timer events while keeping accuracy by rounding our timer and/or batching several address validations in addrconf_verify(). addrconf_verify() is called at earliest timeout among interface addresses' timeouts, but at maximum ADDR_CHECK_FREQUENCY (120 secs). In most cases, all of timeouts of interface addresses are long enough (e.g. several hours or days vs 2 minutes), this timer is usually called every ADDR_CHECK_FREQUENCY, and it is okay to be lazy. (Note this timer could be eliminated if all code paths which modifies variables related to timeouts call us manually, but it is another story.) However, in other least but important cases, we try keeping accuracy. When the real interface address timeout is coming, and the timeout is just before the rounded timeout, we accept some error. When a timeout has been reached, we also try batching other several events in very near future. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:11:12 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
IPv6: convert addrconf hash list to RCU Convert from reader/writer lock to RCU and spinlock for addrconf hash list. Adds an additional helper macro for hlist_for_each_entry_continue_rcu to handle the continue case. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:11 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Reduce timer events for addrconf_verify(). This patch reduces timer events while keeping accuracy by rounding our timer and/or batching several address validations in addrconf_verify(). addrconf_verify() is called at earliest timeout among interface addresses' timeouts, but at maximum ADDR_CHECK_FREQUENCY (120 secs). In most cases, all of timeouts of interface addresses are long enough (e.g. several hours or days vs 2 minutes), this timer is usually called every ADDR_CHECK_FREQUENCY, and it is okay to be lazy. (Note this timer could be eliminated if all code paths which modifies variables related to timeouts call us manually, but it is another story.) However, in other least but important cases, we try keeping accuracy. When the real interface address timeout is coming, and the timeout is just before the rounded timeout, we accept some error. When a timeout has been reached, we also try batching other several events in very near future. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:11:12 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: addrconf cleanups Some minor stuff, reformat comments and add whitespace for clarity Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:08:18 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: fix preferred lifetime state-changing behavior while valid_lft is infinity Fixed a problem with setting the lifetime of an IPv6 address. When setting preferred_lft to a value not zero or infinity, while valid_lft is infinity(0xffffffff) preferred lifetime is set to forever and does not update. Therefore preferred lifetime never becomes deprecated. valid lifetime and preferred lifetime should be set independently, even if valid lifetime is infinity, preferred lifetime must expire correctly (meaning it must eventually become deprecated) Signed-off-by: Yasushi Asano <yasushi.asano@jp.fujitsu.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-31 12:04:19 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Reduce timer events for addrconf_verify(). This patch reduces timer events while keeping accuracy by rounding our timer and/or batching several address validations in addrconf_verify(). addrconf_verify() is called at earliest timeout among interface addresses' timeouts, but at maximum ADDR_CHECK_FREQUENCY (120 secs). In most cases, all of timeouts of interface addresses are long enough (e.g. several hours or days vs 2 minutes), this timer is usually called every ADDR_CHECK_FREQUENCY, and it is okay to be lazy. (Note this timer could be eliminated if all code paths which modifies variables related to timeouts call us manually, but it is another story.) However, in other least but important cases, we try keeping accuracy. When the real interface address timeout is coming, and the timeout is just before the rounded timeout, we accept some error. When a timeout has been reached, we also try batching other several events in very near future. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:11:12 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Do not verify an address with infinity lifetime We also do not try regenarating new temporary address corresponding to an address with infinite preferred lifetime. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:11 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Do not verify an address with infinity lifetime We also do not try regenarating new temporary address corresponding to an address with infinite preferred lifetime. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:11 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: preferred lifetime of address not getting updated There's a bug in addrconf_prefix_rcv() where it won't update the preferred lifetime of an IPv6 address if the current valid lifetime of the address is less than 2 hours (the minimum value in the RA). For example, If I send a router advertisement with a prefix that has valid lifetime = preferred lifetime = 2 hours we'll build this address: 3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000 inet6 2001:1890:1109:a20:217:8ff:fe7d:4718/64 scope global dynamic valid_lft 7175sec preferred_lft 7175sec If I then send the same prefix with valid lifetime = preferred lifetime = 0 it will be ignored since the minimum valid lifetime is 2 hours: 3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000 inet6 2001:1890:1109:a20:217:8ff:fe7d:4718/64 scope global dynamic valid_lft 7161sec preferred_lft 7161sec But according to RFC 4862 we should always reset the preferred lifetime even if the valid lifetime is invalid, which would cause the address to immediately get deprecated. So with this patch we'd see this: 5: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000 inet6 2001:1890:1109:a20:21f:29ff:fe5a:ef04/64 scope global deprecated dynamic valid_lft 7163sec preferred_lft 0sec The comment winds-up being 5x the size of the code to fix the problem. Update the preferred lifetime of IPv6 addresses derived from a prefix info option in a router advertisement even if the valid lifetime in the option is invalid, as specified in RFC 4862 Section 5.5.3e. Fixes an issue where an address will not immediately become deprecated. Reported by Jens Rosenboom. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-02 07:10:52 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: fix preferred lifetime state-changing behavior while valid_lft is infinity Fixed a problem with setting the lifetime of an IPv6 address. When setting preferred_lft to a value not zero or infinity, while valid_lft is infinity(0xffffffff) preferred lifetime is set to forever and does not update. Therefore preferred lifetime never becomes deprecated. valid lifetime and preferred lifetime should be set independently, even if valid lifetime is infinity, preferred lifetime must expire correctly (meaning it must eventually become deprecated) Signed-off-by: Yasushi Asano <yasushi.asano@jp.fujitsu.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-31 12:04:19 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: addrconf cleanup addrconf_verify The variable regen_advance is only used in the privacy case. Move it to simplify code and eliminate ifdef's Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:17 +00:00
neigh: convert parms to an array This patch converts the neigh param members to an array. This allows easier manipulation which will be needed later on to provide better management of default values. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-07 19:26:53 +01:00
IPv6: addrconf cleanup addrconf_verify The variable regen_advance is only used in the privacy case. Move it to simplify code and eliminate ifdef's Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:17 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: convert addrconf hash list to RCU Convert from reader/writer lock to RCU and spinlock for addrconf hash list. Adds an additional helper macro for hlist_for_each_entry_continue_rcu to handle the continue case. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:11 +00:00
[IPV6]: Fix Temporary Address Generation From: Hiroyuki YAMAMORI <h-yamamo@db3.so-net.ne.jp> Since regen_count is stored in the public address, we need to reset it when we start renewing temporary address. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-23 11:24:05 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Reduce timer events for addrconf_verify(). This patch reduces timer events while keeping accuracy by rounding our timer and/or batching several address validations in addrconf_verify(). addrconf_verify() is called at earliest timeout among interface addresses' timeouts, but at maximum ADDR_CHECK_FREQUENCY (120 secs). In most cases, all of timeouts of interface addresses are long enough (e.g. several hours or days vs 2 minutes), this timer is usually called every ADDR_CHECK_FREQUENCY, and it is okay to be lazy. (Note this timer could be eliminated if all code paths which modifies variables related to timeouts call us manually, but it is another story.) However, in other least but important cases, we try keeping accuracy. When the real interface address timeout is coming, and the timeout is just before the rounded timeout, we accept some error. When a timeout has been reached, we also try batching other several events in very near future. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:11:12 -07:00
ipv6: convert the uses of ADBG and remove the superfluous parentheses Just follow the Joe Perches's opinion, it is a better way to fix the style errors. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-17 10:27:04 +08:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
IPv6: convert addrconf hash list to RCU Convert from reader/writer lock to RCU and spinlock for addrconf hash list. Adds an additional helper macro for hlist_for_each_entry_continue_rcu to handle the continue case. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:11 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
ipv6: add support of peer address This patch adds the support of peer address for IPv6. For example, it is possible to specify the remote end of a 6inY tunnel. This was already possible in IPv4: ip addr add ip1 peer ip2 dev dev1 The peer address is specified with IFA_ADDRESS and the local address with IFA_LOCAL (like explained in include/uapi/linux/if_addr.h). Note that the API is not changed, because before this patch, it was not possible to specify two different addresses in IFA_LOCAL and IFA_REMOTE. There is a small change for the dump: if the peer is different from ::, IFA_ADDRESS will contain the peer address instead of the local address. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-16 22:32:00 +00:00
[IPV6] address: Convert address addition to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:09:49 -07:00
ipv6: add support of peer address This patch adds the support of peer address for IPv6. For example, it is possible to specify the remote end of a 6inY tunnel. This was already possible in IPv4: ip addr add ip1 peer ip2 dev dev1 The peer address is specified with IFA_ADDRESS and the local address with IFA_LOCAL (like explained in include/uapi/linux/if_addr.h). Note that the API is not changed, because before this patch, it was not possible to specify two different addresses in IFA_LOCAL and IFA_REMOTE. There is a small change for the dump: if the peer is different from ::, IFA_ADDRESS will contain the peer address instead of the local address. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-16 22:32:00 +00:00
[IPV6] address: Convert address addition to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:09:49 -07:00
ipv6: add support of peer address This patch adds the support of peer address for IPv6. For example, it is possible to specify the remote end of a 6inY tunnel. This was already possible in IPv4: ip addr add ip1 peer ip2 dev dev1 The peer address is specified with IFA_ADDRESS and the local address with IFA_LOCAL (like explained in include/uapi/linux/if_addr.h). Note that the API is not changed, because before this patch, it was not possible to specify two different addresses in IFA_LOCAL and IFA_REMOTE. There is a small change for the dump: if the peer is different from ::, IFA_ADDRESS will contain the peer address instead of the local address. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-16 22:32:00 +00:00
[IPV6] address: Convert address addition to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:09:49 -07:00
[NETLINK]: Mark netlink policies const Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-05 12:38:30 -07:00
[IPV6] address: Convert address addition to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:09:49 -07:00
ipv6 addrconf: extend ifa_flags to u32 There is no more space in u8 ifa_flags. So do what davem suffested and add another netlink attr called IFA_FLAGS for carry more flags. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:21 +01:00
[IPV6] address: Convert address addition to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:09:49 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
rtnetlink: Remove passing of attributes into rtnl_doit functions With decnet converted, we can finally get rid of rta_buf and its computations around it. It also gets rid of the minimal header length verification since all message handlers do that explicitly anyway. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-21 07:45:29 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS. Introduce per-sock inlines: sock_net(), sock_net_set() and per-inet_timewait_sock inlines: twsk_net(), twsk_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-26 02:26:21 +09:00
[IPV6] address: Convert address deletion to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:10:19 -07:00
ipv6: add support of peer address This patch adds the support of peer address for IPv6. For example, it is possible to specify the remote end of a 6inY tunnel. This was already possible in IPv4: ip addr add ip1 peer ip2 dev dev1 The peer address is specified with IFA_ADDRESS and the local address with IFA_LOCAL (like explained in include/uapi/linux/if_addr.h). Note that the API is not changed, because before this patch, it was not possible to specify two different addresses in IFA_LOCAL and IFA_REMOTE. There is a small change for the dump: if the peer is different from ::, IFA_ADDRESS will contain the peer address instead of the local address. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-16 22:32:00 +00:00
ipv6: support IFA_F_MANAGETEMPADDR for address deletion too Userspace applications can use IFA_F_MANAGETEMPADDR with RTM_NEWADDR already to indicate that the kernel should take care of temporary address management. This patch adds related functionality to RTM_DELADDR. By setting IFA_F_MANAGETEMPADDR a userspace application can indicate that the kernel should delete all related temporary addresses as well. A corresponding patch for the "ip addr del" command has been applied to iproute2 already. Signed-off-by: Heiner Kallweit <heiner.kallweit@web.de> Reviewed-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-20 21:29:36 +02:00
[IPV6] address: Convert address deletion to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:10:19 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] address: Convert address deletion to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:10:19 -07:00
ipv6: add support of peer address This patch adds the support of peer address for IPv6. For example, it is possible to specify the remote end of a 6inY tunnel. This was already possible in IPv4: ip addr add ip1 peer ip2 dev dev1 The peer address is specified with IFA_ADDRESS and the local address with IFA_LOCAL (like explained in include/uapi/linux/if_addr.h). Note that the API is not changed, because before this patch, it was not possible to specify two different addresses in IFA_LOCAL and IFA_REMOTE. There is a small change for the dump: if the peer is different from ::, IFA_ADDRESS will contain the peer address instead of the local address. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-16 22:32:00 +00:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: support IFA_F_MANAGETEMPADDR for address deletion too Userspace applications can use IFA_F_MANAGETEMPADDR with RTM_NEWADDR already to indicate that the kernel should take care of temporary address management. This patch adds related functionality to RTM_DELADDR. By setting IFA_F_MANAGETEMPADDR a userspace application can indicate that the kernel should delete all related temporary addresses as well. A corresponding patch for the "ip addr del" command has been applied to iproute2 already. Signed-off-by: Heiner Kallweit <heiner.kallweit@web.de> Reviewed-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-20 21:29:36 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: extend ifa_flags to u32 There is no more space in u8 ifa_flags. So do what davem suffested and add another netlink attr called IFA_FLAGS for carry more flags. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:21 +01:00
[IPV6] ADDRCONF: Allow non-DAD'able addresses. IFA_F_NODAD flag, similar to IN6_IFF_NODAD in BSDs, is introduced to skip DAD. This flag should be set to Mobile IPv6 Home Address(es) on Mobile Node because DAD would fail if we should perform DAD; our Home Agent protects our Home Address(es). Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:45:27 -07:00
[IPV6] ADDRCONF: NLM_F_REPLACE support for RTM_NEWADDR Based on MIPL2 kernel patch. Signed-off-by: Noriaki YAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:13 +09:00
ipv6 addrconf: Allow infinite prefix lifetime. We need to handle infinite prefix lifetime specially. With help from original reporter "Bonitch, Joseph" <Joseph.Bonitch@xerox.com>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-19 16:56:11 -07:00
[IPV6] ADDRCONF: Allow longer lifetime on 64bit archs. - Allow longer lifetimes (>= 0x7fffffff/HZ) on 64bit archs by using unsigned long. - Shadow this arithmetic overflow workaround by introducing helper functions: addrconf_timeout_fixup() and addrconf_finite_timeout(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-05-27 17:37:49 +09:00
ipv6 addrconf: introduce IFA_F_MANAGETEMPADDR to tell kernel to manage temporary addresses Creating an address with this flag set will result in kernel taking care of temporary addresses in the same way as if the address was created by kernel itself (after RA receive). This allows userspace applications implementing the autoconfiguration (NetworkManager for example) to implement ipv6 addresses privacy. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:22 +01:00
ipv6 addrconf: don't cleanup prefix route for IFA_F_NOPREFIXROUTE Refactor the deletion/update of prefix routes when removing an address. Now also consider IFA_F_NOPREFIXROUTE and if there is an address present with this flag, to not cleanup the route. Instead, assume that userspace is taking care of this route. Also perform the same cleanup, when userspace changes an existing address to add NOPREFIXROUTE (to an address that didn't have this flag). This is done because when the address was added, a prefix route was created for it. Since the user now wants to handle this route by himself, we cleanup this route. This cleanup of the route is not totally robust. There is no guarantee, that the route we are about to delete was really the one added by the kernel. This behavior does not change by the patch, and in practice it should work just fine. Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-15 15:36:59 +01:00
[IPV6] ADDRCONF: Manage prefix route corresponding to address manually added. It is more natural to manage prefix routes corresponding to address which is being added manually. With help from Masafumi Aramoto <aramoto@linux-ipv6.org>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2007-02-07 20:36:26 +09:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
[IPV6] ADDRCONF: NLM_F_REPLACE support for RTM_NEWADDR Based on MIPL2 kernel patch. Signed-off-by: Noriaki YAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:13 +09:00
ipv6 addrconf: introduce IFA_F_MANAGETEMPADDR to tell kernel to manage temporary addresses Creating an address with this flag set will result in kernel taking care of temporary addresses in the same way as if the address was created by kernel itself (after RA receive). This allows userspace applications implementing the autoconfiguration (NetworkManager for example) to implement ipv6 addresses privacy. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:22 +01:00
[IPV6] ADDRCONF: Allow longer lifetime on 64bit archs. - Allow longer lifetimes (>= 0x7fffffff/HZ) on 64bit archs by using unsigned long. - Shadow this arithmetic overflow workaround by introducing helper functions: addrconf_timeout_fixup() and addrconf_finite_timeout(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-05-27 17:37:49 +09:00
ipv6 addrconf: Allow infinite prefix lifetime. We need to handle infinite prefix lifetime specially. With help from original reporter "Bonitch, Joseph" <Joseph.Bonitch@xerox.com>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-19 16:56:11 -07:00
[IPV6] ADDRCONF: Allow longer lifetime on 64bit archs. - Allow longer lifetimes (>= 0x7fffffff/HZ) on 64bit archs by using unsigned long. - Shadow this arithmetic overflow workaround by introducing helper functions: addrconf_timeout_fixup() and addrconf_finite_timeout(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-05-27 17:37:49 +09:00
ipv6 addrconf: Allow infinite prefix lifetime. We need to handle infinite prefix lifetime specially. With help from original reporter "Bonitch, Joseph" <Joseph.Bonitch@xerox.com>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-19 16:56:11 -07:00
[IPV6] ADDRCONF: NLM_F_REPLACE support for RTM_NEWADDR Based on MIPL2 kernel patch. Signed-off-by: Noriaki YAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:13 +09:00
[IPV6] ADDRCONF: Allow longer lifetime on 64bit archs. - Allow longer lifetimes (>= 0x7fffffff/HZ) on 64bit archs by using unsigned long. - Shadow this arithmetic overflow workaround by introducing helper functions: addrconf_timeout_fixup() and addrconf_finite_timeout(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-05-27 17:37:49 +09:00
[IPV6] ADDRCONF: NLM_F_REPLACE support for RTM_NEWADDR Based on MIPL2 kernel patch. Signed-off-by: Noriaki YAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:13 +09:00
ipv6 addrconf: introduce IFA_F_MANAGETEMPADDR to tell kernel to manage temporary addresses Creating an address with this flag set will result in kernel taking care of temporary addresses in the same way as if the address was created by kernel itself (after RA receive). This allows userspace applications implementing the autoconfiguration (NetworkManager for example) to implement ipv6 addresses privacy. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:22 +01:00
ipv6 addrconf: don't cleanup prefix route for IFA_F_NOPREFIXROUTE Refactor the deletion/update of prefix routes when removing an address. Now also consider IFA_F_NOPREFIXROUTE and if there is an address present with this flag, to not cleanup the route. Instead, assume that userspace is taking care of this route. Also perform the same cleanup, when userspace changes an existing address to add NOPREFIXROUTE (to an address that didn't have this flag). This is done because when the address was added, a prefix route was created for it. Since the user now wants to handle this route by himself, we cleanup this route. This cleanup of the route is not totally robust. There is no guarantee, that the route we are about to delete was really the one added by the kernel. This behavior does not change by the patch, and in practice it should work just fine. Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-15 15:36:59 +01:00
ipv6 addrconf: introduce IFA_F_MANAGETEMPADDR to tell kernel to manage temporary addresses Creating an address with this flag set will result in kernel taking care of temporary addresses in the same way as if the address was created by kernel itself (after RA receive). This allows userspace applications implementing the autoconfiguration (NetworkManager for example) to implement ipv6 addresses privacy. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:22 +01:00
ipv6 addrconf: add IFA_F_NOPREFIXROUTE flag to suppress creation of IP6 routes When adding/modifying an IPv6 address, the userspace application needs a way to suppress adding a prefix route. This is for example relevant together with IFA_F_MANAGERTEMPADDR, where userspace creates autoconf generated addresses, but depending on on-link, no route for the prefix should be added. Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-15 15:36:58 +01:00
ipv6 addrconf: introduce IFA_F_MANAGETEMPADDR to tell kernel to manage temporary addresses Creating an address with this flag set will result in kernel taking care of temporary addresses in the same way as if the address was created by kernel itself (after RA receive). This allows userspace applications implementing the autoconfiguration (NetworkManager for example) to implement ipv6 addresses privacy. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:22 +01:00
[IPV6] ADDRCONF: NLM_F_REPLACE support for RTM_NEWADDR Based on MIPL2 kernel patch. Signed-off-by: Noriaki YAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:13 +09:00
ipv6 addrconf: add IFA_F_NOPREFIXROUTE flag to suppress creation of IP6 routes When adding/modifying an IPv6 address, the userspace application needs a way to suppress adding a prefix route. This is for example relevant together with IFA_F_MANAGERTEMPADDR, where userspace creates autoconf generated addresses, but depending on on-link, no route for the prefix should be added. Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-15 15:36:58 +01:00
ipv6 addrconf: don't cleanup prefix route for IFA_F_NOPREFIXROUTE Refactor the deletion/update of prefix routes when removing an address. Now also consider IFA_F_NOPREFIXROUTE and if there is an address present with this flag, to not cleanup the route. Instead, assume that userspace is taking care of this route. Also perform the same cleanup, when userspace changes an existing address to add NOPREFIXROUTE (to an address that didn't have this flag). This is done because when the address was added, a prefix route was created for it. Since the user now wants to handle this route by himself, we cleanup this route. This cleanup of the route is not totally robust. There is no guarantee, that the route we are about to delete was really the one added by the kernel. This behavior does not change by the patch, and in practice it should work just fine. Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-15 15:36:59 +01:00
ipv6 addrconf: add IFA_F_NOPREFIXROUTE flag to suppress creation of IP6 routes When adding/modifying an IPv6 address, the userspace application needs a way to suppress adding a prefix route. This is for example relevant together with IFA_F_MANAGERTEMPADDR, where userspace creates autoconf generated addresses, but depending on on-link, no route for the prefix should be added. Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-15 15:36:58 +01:00
ipv6 addrconf: introduce IFA_F_MANAGETEMPADDR to tell kernel to manage temporary addresses Creating an address with this flag set will result in kernel taking care of temporary addresses in the same way as if the address was created by kernel itself (after RA receive). This allows userspace applications implementing the autoconfiguration (NetworkManager for example) to implement ipv6 addresses privacy. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:22 +01:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
[IPV6] ADDRCONF: NLM_F_REPLACE support for RTM_NEWADDR Based on MIPL2 kernel patch. Signed-off-by: Noriaki YAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:13 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
rtnetlink: Remove passing of attributes into rtnl_doit functions With decnet converted, we can finally get rid of rta_buf and its computations around it. It also gets rid of the minimal header length verification since all message handlers do that explicitly anyway. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-21 07:45:29 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS. Introduce per-sock inlines: sock_net(), sock_net_set() and per-inet_timewait_sock inlines: twsk_net(), twsk_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-26 02:26:21 +09:00
[IPV6] address: Convert address addition to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:09:49 -07:00
ipv6: add support of peer address This patch adds the support of peer address for IPv6. For example, it is possible to specify the remote end of a 6inY tunnel. This was already possible in IPv4: ip addr add ip1 peer ip2 dev dev1 The peer address is specified with IFA_ADDRESS and the local address with IFA_LOCAL (like explained in include/uapi/linux/if_addr.h). Note that the API is not changed, because before this patch, it was not possible to specify two different addresses in IFA_LOCAL and IFA_REMOTE. There is a small change for the dump: if the peer is different from ::, IFA_ADDRESS will contain the peer address instead of the local address. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-16 22:32:00 +00:00
[IPV6] address: Support NLM_F_EXCL when adding addresses iproute2 doesn't provide the NLM_F_CREATE flag when adding addresses, it is assumed to be implied. The existing code issues a check on said flag when the modify operation fails (likely due to ENOENT) before continueing to create it, this leads to a hard to predict result, therefore the NLM_F_CREATE check is removed. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:13:46 -07:00
[IPV6] ADDRCONF: Allow non-DAD'able addresses. IFA_F_NODAD flag, similar to IN6_IFF_NODAD in BSDs, is introduced to skip DAD. This flag should be set to Mobile IPv6 Home Address(es) on Mobile Node because DAD would fail if we should perform DAD; our Home Agent protects our Home Address(es). Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:45:27 -07:00
ipv6 addrconf: extend ifa_flags to u32 There is no more space in u8 ifa_flags. So do what davem suffested and add another netlink attr called IFA_FLAGS for carry more flags. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:21 +01:00
[IPV6] address: Convert address addition to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:09:49 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] address: Convert address addition to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:09:49 -07:00
ipv6: add support of peer address This patch adds the support of peer address for IPv6. For example, it is possible to specify the remote end of a 6inY tunnel. This was already possible in IPv4: ip addr add ip1 peer ip2 dev dev1 The peer address is specified with IFA_ADDRESS and the local address with IFA_LOCAL (like explained in include/uapi/linux/if_addr.h). Note that the API is not changed, because before this patch, it was not possible to specify two different addresses in IFA_LOCAL and IFA_REMOTE. There is a small change for the dump: if the peer is different from ::, IFA_ADDRESS will contain the peer address instead of the local address. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-16 22:32:00 +00:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] address: Convert address addition to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:09:49 -07:00
[IPV6] ADDRCONF: Allow user-space to specify address lifetime Based on MIPL2 kernel patch. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:10 +09:00
[IPV6] address: Convert address addition to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:09:49 -07:00
[IPV6] ADDRCONF: Allow user-space to specify address lifetime Based on MIPL2 kernel patch. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:10 +09:00
[IPV6] address: Convert address addition to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:09:49 -07:00
[IPV6] ADDRCONF: Allow user-space to specify address lifetime Based on MIPL2 kernel patch. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:10 +09:00
[NETNS][IPV6] addrconf - Pass the proper network namespace parameters to addrconf This patch propagates the network namespace pointer to the address configuration routines which need it, which means adding a new parameter to these functions, and make them use it instead of using the initial network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-05 10:46:57 -08:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
[IPV6] address: Support NLM_F_EXCL when adding addresses iproute2 doesn't provide the NLM_F_CREATE flag when adding addresses, it is assumed to be implied. The existing code issues a check on said flag when the modify operation fails (likely due to ENOENT) before continueing to create it, this leads to a hard to predict result, therefore the NLM_F_CREATE check is removed. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:13:46 -07:00
ipv6 addrconf: extend ifa_flags to u32 There is no more space in u8 ifa_flags. So do what davem suffested and add another netlink attr called IFA_FLAGS for carry more flags. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:21 +01:00
[IPV6] ADDRCONF: Allow non-DAD'able addresses. IFA_F_NODAD flag, similar to IN6_IFF_NODAD in BSDs, is introduced to skip DAD. This flag should be set to Mobile IPv6 Home Address(es) on Mobile Node because DAD would fail if we should perform DAD; our Home Agent protects our Home Address(es). Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:45:27 -07:00
ipv6 addrconf: add IFA_F_NOPREFIXROUTE flag to suppress creation of IP6 routes When adding/modifying an IPv6 address, the userspace application needs a way to suppress adding a prefix route. This is for example relevant together with IFA_F_MANAGERTEMPADDR, where userspace creates autoconf generated addresses, but depending on on-link, no route for the prefix should be added. Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-15 15:36:58 +01:00
multicast: Extend ip address command to enable multicast group join/leave on Joining multicast group on ethernet level via "ip maddr" command would not work if we have an Ethernet switch that does igmp snooping since the switch would not replicate multicast packets on ports that did not have IGMP reports for the multicast addresses. Linux vxlan interfaces created via "ip link add vxlan" have the group option that enables then to do the required join. By extending ip address command with option "autojoin" we can get similar functionality for openvswitch vxlan interfaces as well as other tunneling mechanisms that need to receive multicast traffic. The kernel code is structured similar to how the vxlan driver does a group join / leave. example: ip address add 224.1.1.10/24 dev eth5 autojoin ip address del 224.1.1.10/24 dev eth5 Signed-off-by: Madhu Challa <challa@noironetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-25 09:58:35 -08:00
[IPV6] ADDRCONF: Allow non-DAD'able addresses. IFA_F_NODAD flag, similar to IN6_IFF_NODAD in BSDs, is introduced to skip DAD. This flag should be set to Mobile IPv6 Home Address(es) on Mobile Node because DAD would fail if we should perform DAD; our Home Agent protects our Home Address(es). Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:45:27 -07:00
[NETNS][IPV6]: inet6_addr - ipv6_get_ifaddr namespace aware The inet6_addr_lst is browsed taking into account the network namespace specified as parameter. If an address does not belong to the specified namespace, it is ignored. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 22:44:09 -08:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
[IPV6] address: Support NLM_F_EXCL when adding addresses iproute2 doesn't provide the NLM_F_CREATE flag when adding addresses, it is assumed to be implied. The existing code issues a check on said flag when the modify operation fails (likely due to ENOENT) before continueing to create it, this leads to a hard to predict result, therefore the NLM_F_CREATE check is removed. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:13:46 -07:00
ipv6: addrconf spelling fixes Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-12 11:26:32 -08:00
[IPV6] address: Support NLM_F_EXCL when adding addresses iproute2 doesn't provide the NLM_F_CREATE flag when adding addresses, it is assumed to be implied. The existing code issues a check on said flag when the modify operation fails (likely due to ENOENT) before continueing to create it, this leads to a hard to predict result, therefore the NLM_F_CREATE check is removed. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:13:46 -07:00
ipv6: add support of peer address This patch adds the support of peer address for IPv6. For example, it is possible to specify the remote end of a 6inY tunnel. This was already possible in IPv4: ip addr add ip1 peer ip2 dev dev1 The peer address is specified with IFA_ADDRESS and the local address with IFA_LOCAL (like explained in include/uapi/linux/if_addr.h). Note that the API is not changed, because before this patch, it was not possible to specify two different addresses in IFA_LOCAL and IFA_REMOTE. There is a small change for the dump: if the peer is different from ::, IFA_ADDRESS will contain the peer address instead of the local address. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-16 22:32:00 +00:00
[NETNS][IPV6] addrconf - Pass the proper network namespace parameters to addrconf This patch propagates the network namespace pointer to the address configuration routines which need it, which means adding a new parameter to these functions, and make them use it instead of using the initial network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-05 10:46:57 -08:00
[IPV6] ADDRCONF: NLM_F_REPLACE support for RTM_NEWADDR Based on MIPL2 kernel patch. Signed-off-by: Noriaki YAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:13 +09:00
[IPV6] address: Support NLM_F_EXCL when adding addresses iproute2 doesn't provide the NLM_F_CREATE flag when adding addresses, it is assumed to be implied. The existing code issues a check on said flag when the modify operation fails (likely due to ENOENT) before continueing to create it, this leads to a hard to predict result, therefore the NLM_F_CREATE check is removed. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:13:46 -07:00
[IPV6] ADDRCONF: Allow non-DAD'able addresses. IFA_F_NODAD flag, similar to IN6_IFF_NODAD in BSDs, is introduced to skip DAD. This flag should be set to Mobile IPv6 Home Address(es) on Mobile Node because DAD would fail if we should perform DAD; our Home Agent protects our Home Address(es). Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:45:27 -07:00
[IPV6] address: Support NLM_F_EXCL when adding addresses iproute2 doesn't provide the NLM_F_CREATE flag when adding addresses, it is assumed to be implied. The existing code issues a check on said flag when the modify operation fails (likely due to ENOENT) before continueing to create it, this leads to a hard to predict result, therefore the NLM_F_CREATE check is removed. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:13:46 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6 addrconf: extend ifa_flags to u32 There is no more space in u8 ifa_flags. So do what davem suffested and add another netlink attr called IFA_FLAGS for carry more flags. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:21 +01:00
[IPV6] address: Add put_ifaddrmsg() and rt_scope() Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:11:52 -07:00
[IPV6] address: Add put_cacheinfo() to dump struct cacheinfo Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:11:24 -07:00
ipv6: Expose reachable and retrans timer values as msecs Expose reachable and retrans timer values in msecs instead of jiffies. Both timer values are already exposed as msecs in the neighbour table netlink interface. The creation timestamp format with increased precision is kept but cleaned up. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-17 04:12:02 +00:00
[IPV6] address: Add put_cacheinfo() to dump struct cacheinfo Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:11:24 -07:00
[IPV6] address: Add put_ifaddrmsg() and rt_scope() Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:11:52 -07:00
[IPV6] address: Convert address dumping to new netlink api Replaces INET6_IFADDR_RTA_SPACE with a new function calculating the total required message size for all address messages. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:12:35 -07:00
[NETLINK]: Do precise netlink message allocations where possible Account for the netlink message header size directly in nlmsg_new() instead of relying on the caller calculate it correctly. Replaces error handling of message construction functions when constructing notifications with bug traps since a failure implies a bug in calculating the size of the skb. Signed-off-by: Thomas Graf <tgraf@suug.ch> Acked-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-10 14:10:15 -08:00
ipv6: add support of peer address This patch adds the support of peer address for IPv6. For example, it is possible to specify the remote end of a 6inY tunnel. This was already possible in IPv4: ip addr add ip1 peer ip2 dev dev1 The peer address is specified with IFA_ADDRESS and the local address with IFA_LOCAL (like explained in include/uapi/linux/if_addr.h). Note that the API is not changed, because before this patch, it was not possible to specify two different addresses in IFA_LOCAL and IFA_REMOTE. There is a small change for the dump: if the peer is different from ::, IFA_ADDRESS will contain the peer address instead of the local address. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-16 22:32:00 +00:00
[NETLINK]: Do precise netlink message allocations where possible Account for the netlink message header size directly in nlmsg_new() instead of relying on the caller calculate it correctly. Replaces error handling of message construction functions when constructing notifications with bug traps since a failure implies a bug in calculating the size of the skb. Signed-off-by: Thomas Graf <tgraf@suug.ch> Acked-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-10 14:10:15 -08:00
ipv6 addrconf: extend ifa_flags to u32 There is no more space in u8 ifa_flags. So do what davem suffested and add another netlink attr called IFA_FLAGS for carry more flags. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:21 +01:00
[IPV6] address: Convert address dumping to new netlink api Replaces INET6_IFADDR_RTA_SPACE with a new function calculating the total required message size for all address messages. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:12:35 -07:00
[IPV6]: Sum real space for RTAs. This patch fixes RTNLGRP_IPV6_IFINFO netlink notifications. Issue pointed out by Patrick McHardy <kaber@trash.net>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-17 22:48:48 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
netlink: Rename pid to portid to avoid confusion It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07 20:12:54 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] address: Add put_cacheinfo() to dump struct cacheinfo Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:11:24 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
netlink: Rename pid to portid to avoid confusion It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07 20:12:54 +00:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
[NETLINK]: Don't BUG on undersized allocations Currently netlink users BUG when the allocated skb for an event notification is undersized. While this is certainly a kernel bug, its not critical and crashing the kernel is too drastic, especially when considering that these errors have appeared multiple times in the past and it BUGs even if no listeners are present. This patch replaces BUG by WARN_ON and changes the notification functions to inform potential listeners of undersized allocations using a unique error code (EMSGSIZE). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-31 23:16:40 -08:00
[IPV6] address: Convert address dumping to new netlink api Replaces INET6_IFADDR_RTA_SPACE with a new function calculating the total required message size for all address messages. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:12:35 -07:00
[IPV6] address: Add put_ifaddrmsg() and rt_scope() Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:11:52 -07:00
ipv6 addrconf: fix preferred lifetime state-changing behavior while valid_lft is infinity Fixed a problem with setting the lifetime of an IPv6 address. When setting preferred_lft to a value not zero or infinity, while valid_lft is infinity(0xffffffff) preferred lifetime is set to forever and does not update. Therefore preferred lifetime never becomes deprecated. valid lifetime and preferred lifetime should be set independently, even if valid lifetime is infinity, preferred lifetime must expire correctly (meaning it must eventually become deprecated) Signed-off-by: Yasushi Asano <yasushi.asano@jp.fujitsu.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-31 12:04:19 +09:00
[IPV6] address: Add put_cacheinfo() to dump struct cacheinfo Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:11:24 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: avoid wraparound for expired preferred lifetime Avoid showing wrong high values when the preferred lifetime of an address is expired. Signed-off-by: Jens Rosenboom <me@jayr.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-25 04:55:50 +00:00
ipv6: Clamp reported valid_lft to a minimum of 0 Since addresses are only revalidated every 2 minutes, the reported valid_lft can underflow shortly before the address is deleted. Clamp it to a minimum of 0, as for prefered_lft. Reported-by: Piotr Lewandowski <piotr.lewandowski@gmail.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-26 11:37:47 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] address: Add put_cacheinfo() to dump struct cacheinfo Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:11:24 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] address: Add put_cacheinfo() to dump struct cacheinfo Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:11:24 -07:00
ipv6: use ipv6_addr_any() helper ipv6_addr_any() is a faster way to determine if an addr is ipv6 any addr, no need to compute the addr type. Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-22 05:41:06 +00:00
netlink: implement nla_put_in_addr and nla_put_in6_addr IP addresses are often stored in netlink attributes. Add generic functions to do that. For nla_put_in_addr, it would be nicer to pass struct in_addr but this is not used universally throughout the kernel, in way too many places __be32 is used to store IPv4 address. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 16:59:25 +02:00
ipv6: add support of peer address This patch adds the support of peer address for IPv6. For example, it is possible to specify the remote end of a 6inY tunnel. This was already possible in IPv4: ip addr add ip1 peer ip2 dev dev1 The peer address is specified with IFA_ADDRESS and the local address with IFA_LOCAL (like explained in include/uapi/linux/if_addr.h). Note that the API is not changed, because before this patch, it was not possible to specify two different addresses in IFA_LOCAL and IFA_REMOTE. There is a small change for the dump: if the peer is different from ::, IFA_ADDRESS will contain the peer address instead of the local address. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-16 22:32:00 +00:00
netlink: implement nla_put_in_addr and nla_put_in6_addr IP addresses are often stored in netlink attributes. Add generic functions to do that. For nla_put_in_addr, it would be nicer to pass struct in_addr but this is not used universally throughout the kernel, in way too many places __be32 is used to store IPv4 address. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 16:59:25 +02:00
ipv6: add support of peer address This patch adds the support of peer address for IPv6. For example, it is possible to specify the remote end of a 6inY tunnel. This was already possible in IPv4: ip addr add ip1 peer ip2 dev dev1 The peer address is specified with IFA_ADDRESS and the local address with IFA_LOCAL (like explained in include/uapi/linux/if_addr.h). Note that the API is not changed, because before this patch, it was not possible to specify two different addresses in IFA_LOCAL and IFA_REMOTE. There is a small change for the dump: if the peer is different from ::, IFA_ADDRESS will contain the peer address instead of the local address. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-16 22:32:00 +00:00
[IPV6] address: Add put_cacheinfo() to dump struct cacheinfo Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:11:24 -07:00
ipv6 addrconf: extend ifa_flags to u32 There is no more space in u8 ifa_flags. So do what davem suffested and add another netlink attr called IFA_FLAGS for carry more flags. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Thomas Haller <thaller@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-06 09:45:21 +01:00
netlink: make nlmsg_end() and genlmsg_end() void Contrary to common expectations for an "int" return, these functions return only a positive value -- if used correctly they cannot even return 0 because the message header will necessarily be in the skb. This makes the very common pattern of if (genlmsg_end(...) < 0) { ... } be a whole bunch of dead code. Many places also simply do return nlmsg_end(...); and the caller is expected to deal with it. This also commonly (at least for me) causes errors, because it is very common to write if (my_function(...)) /* error condition */ and if my_function() does "return nlmsg_end()" this is of course wrong. Additionally, there's not a single place in the kernel that actually needs the message length returned, and if anyone needs it later then it'll be very easy to just use skb->len there. Remove this, and make the functions void. This removes a bunch of dead code as described above. The patch adds lines because I did - return nlmsg_end(...); + nlmsg_end(...); + return 0; I could have preserved all the function's return values by returning skb->len, but instead I've audited all the places calling the affected functions and found that none cared. A few places actually compared the return value with <= 0 in dump functionality, but that could just be changed to < 0 with no change in behaviour, so I opted for the more efficient version. One instance of the error I've made numerous times now is also present in net/phonet/pn_netlink.c in the route_dumpit() function - it didn't check for <0 or <=0 and thus broke out of the loop every single time. I've preserved this since it will (I think) have caused the messages to userspace to be formatted differently with just a single message for every SKB returned to userspace. It's possible that this isn't needed for the tools that actually use this, but I don't even know what they are so couldn't test that changing this behaviour would be acceptable. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-16 22:09:00 +01:00
ipv6: add support of peer address This patch adds the support of peer address for IPv6. For example, it is possible to specify the remote end of a 6inY tunnel. This was already possible in IPv4: ip addr add ip1 peer ip2 dev dev1 The peer address is specified with IFA_ADDRESS and the local address with IFA_LOCAL (like explained in include/uapi/linux/if_addr.h). Note that the API is not changed, because before this patch, it was not possible to specify two different addresses in IFA_LOCAL and IFA_REMOTE. There is a small change for the dump: if the peer is different from ::, IFA_ADDRESS will contain the peer address instead of the local address. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-16 22:32:00 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
netlink: Rename pid to portid to avoid confusion It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07 20:12:54 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] address: Add put_ifaddrmsg() and rt_scope() Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:11:52 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] address: Add put_ifaddrmsg() and rt_scope() Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:11:52 -07:00
netlink: Rename pid to portid to avoid confusion It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07 20:12:54 +00:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
[NETLINK]: Don't BUG on undersized allocations Currently netlink users BUG when the allocated skb for an event notification is undersized. While this is certainly a kernel bug, its not critical and crashing the kernel is too drastic, especially when considering that these errors have appeared multiple times in the past and it BUGs even if no listeners are present. This patch replaces BUG by WARN_ON and changes the notification functions to inform potential listeners of undersized allocations using a unique error code (EMSGSIZE). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-31 23:16:40 -08:00
[IPV6] address: Convert address dumping to new netlink api Replaces INET6_IFADDR_RTA_SPACE with a new function calculating the total required message size for all address messages. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:12:35 -07:00
[IPV6] address: Add put_ifaddrmsg() and rt_scope() Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:11:52 -07:00
netlink: implement nla_put_in_addr and nla_put_in6_addr IP addresses are often stored in netlink attributes. Add generic functions to do that. For nla_put_in_addr, it would be nicer to pass struct in_addr but this is not used universally throughout the kernel, in way too many places __be32 is used to store IPv4 address. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 16:59:25 +02:00
[IPV6] address: Convert address dumping to new netlink api Replaces INET6_IFADDR_RTA_SPACE with a new function calculating the total required message size for all address messages. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:12:35 -07:00
[NETLINK]: Don't BUG on undersized allocations Currently netlink users BUG when the allocated skb for an event notification is undersized. While this is certainly a kernel bug, its not critical and crashing the kernel is too drastic, especially when considering that these errors have appeared multiple times in the past and it BUGs even if no listeners are present. This patch replaces BUG by WARN_ON and changes the notification functions to inform potential listeners of undersized allocations using a unique error code (EMSGSIZE). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-31 23:16:40 -08:00
[IPV6] address: Add put_cacheinfo() to dump struct cacheinfo Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:11:24 -07:00
netlink: make nlmsg_end() and genlmsg_end() void Contrary to common expectations for an "int" return, these functions return only a positive value -- if used correctly they cannot even return 0 because the message header will necessarily be in the skb. This makes the very common pattern of if (genlmsg_end(...) < 0) { ... } be a whole bunch of dead code. Many places also simply do return nlmsg_end(...); and the caller is expected to deal with it. This also commonly (at least for me) causes errors, because it is very common to write if (my_function(...)) /* error condition */ and if my_function() does "return nlmsg_end()" this is of course wrong. Additionally, there's not a single place in the kernel that actually needs the message length returned, and if anyone needs it later then it'll be very easy to just use skb->len there. Remove this, and make the functions void. This removes a bunch of dead code as described above. The patch adds lines because I did - return nlmsg_end(...); + nlmsg_end(...); + return 0; I could have preserved all the function's return values by returning skb->len, but instead I've audited all the places calling the affected functions and found that none cared. A few places actually compared the return value with <= 0 in dump functionality, but that could just be changed to < 0 with no change in behaviour, so I opted for the more efficient version. One instance of the error I've made numerous times now is also present in net/phonet/pn_netlink.c in the route_dumpit() function - it didn't check for <0 or <=0 and thus broke out of the loop every single time. I've preserved this since it will (I think) have caused the messages to userspace to be formatted differently with just a single message for every SKB returned to userspace. It's possible that this isn't needed for the tools that actually use this, but I don't even know what they are so couldn't test that changing this behaviour would be acceptable. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-16 22:09:00 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
netlink: Rename pid to portid to avoid confusion It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07 20:12:54 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] address: Add put_ifaddrmsg() and rt_scope() Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:11:52 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] address: Add put_ifaddrmsg() and rt_scope() Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:11:52 -07:00
netlink: Rename pid to portid to avoid confusion It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07 20:12:54 +00:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
[NETLINK]: Don't BUG on undersized allocations Currently netlink users BUG when the allocated skb for an event notification is undersized. While this is certainly a kernel bug, its not critical and crashing the kernel is too drastic, especially when considering that these errors have appeared multiple times in the past and it BUGs even if no listeners are present. This patch replaces BUG by WARN_ON and changes the notification functions to inform potential listeners of undersized allocations using a unique error code (EMSGSIZE). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-31 23:16:40 -08:00
[IPV6] address: Convert address dumping to new netlink api Replaces INET6_IFADDR_RTA_SPACE with a new function calculating the total required message size for all address messages. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:12:35 -07:00
[IPV6] address: Add put_ifaddrmsg() and rt_scope() Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:11:52 -07:00
netlink: implement nla_put_in_addr and nla_put_in6_addr IP addresses are often stored in netlink attributes. Add generic functions to do that. For nla_put_in_addr, it would be nicer to pass struct in_addr but this is not used universally throughout the kernel, in way too many places __be32 is used to store IPv4 address. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 16:59:25 +02:00
[IPV6] address: Convert address dumping to new netlink api Replaces INET6_IFADDR_RTA_SPACE with a new function calculating the total required message size for all address messages. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:12:35 -07:00
[NETLINK]: Don't BUG on undersized allocations Currently netlink users BUG when the allocated skb for an event notification is undersized. While this is certainly a kernel bug, its not critical and crashing the kernel is too drastic, especially when considering that these errors have appeared multiple times in the past and it BUGs even if no listeners are present. This patch replaces BUG by WARN_ON and changes the notification functions to inform potential listeners of undersized allocations using a unique error code (EMSGSIZE). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-31 23:16:40 -08:00
[IPV6] address: Add put_cacheinfo() to dump struct cacheinfo Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:11:24 -07:00
netlink: make nlmsg_end() and genlmsg_end() void Contrary to common expectations for an "int" return, these functions return only a positive value -- if used correctly they cannot even return 0 because the message header will necessarily be in the skb. This makes the very common pattern of if (genlmsg_end(...) < 0) { ... } be a whole bunch of dead code. Many places also simply do return nlmsg_end(...); and the caller is expected to deal with it. This also commonly (at least for me) causes errors, because it is very common to write if (my_function(...)) /* error condition */ and if my_function() does "return nlmsg_end()" this is of course wrong. Additionally, there's not a single place in the kernel that actually needs the message length returned, and if anyone needs it later then it'll be very easy to just use skb->len there. Remove this, and make the functions void. This removes a bunch of dead code as described above. The patch adds lines because I did - return nlmsg_end(...); + nlmsg_end(...); + return 0; I could have preserved all the function's return values by returning skb->len, but instead I've audited all the places calling the affected functions and found that none cared. A few places actually compared the return value with <= 0 in dump functionality, but that could just be changed to < 0 with no change in behaviour, so I opted for the more efficient version. One instance of the error I've made numerous times now is also present in net/phonet/pn_netlink.c in the route_dumpit() function - it didn't check for <0 or <=0 and thus broke out of the loop every single time. I've preserved this since it will (I think) have caused the messages to userspace to be formatted differently with just a single message for every SKB returned to userspace. It's possible that this isn't needed for the tools that actually use this, but I don't even know what they are so couldn't test that changing this behaviour would be acceptable. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-16 22:09:00 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: speedup inet6_dump_addr() When handling large number of netdevices, inet6_dump_addr() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the NETDEV_HASHENTRIES sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 04:11:50 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: speedup inet6_dump_addr() When handling large number of netdevices, inet6_dump_addr() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the NETDEV_HASHENTRIES sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 04:11:50 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: speedup inet6_dump_addr() When handling large number of netdevices, inet6_dump_addr() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the NETDEV_HASHENTRIES sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 04:11:50 +00:00
ipv6: convert idev_list to list macros Convert to list macro's for the list of addresses per interface in IPv6. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:13 +00:00
ipv6: speedup inet6_dump_addr() When handling large number of netdevices, inet6_dump_addr() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the NETDEV_HASHENTRIES sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 04:11:50 +00:00
ipv6: convert idev_list to list macros Convert to list macro's for the list of addresses per interface in IPv6. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:13 +00:00
ipv6: speedup inet6_dump_addr() When handling large number of netdevices, inet6_dump_addr() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the NETDEV_HASHENTRIES sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 04:11:50 +00:00
netlink: Rename pid to portid to avoid confusion It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07 20:12:54 +00:00
ipv6: speedup inet6_dump_addr() When handling large number of netdevices, inet6_dump_addr() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the NETDEV_HASHENTRIES sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 04:11:50 +00:00
netlink: make nlmsg_end() and genlmsg_end() void Contrary to common expectations for an "int" return, these functions return only a positive value -- if used correctly they cannot even return 0 because the message header will necessarily be in the skb. This makes the very common pattern of if (genlmsg_end(...) < 0) { ... } be a whole bunch of dead code. Many places also simply do return nlmsg_end(...); and the caller is expected to deal with it. This also commonly (at least for me) causes errors, because it is very common to write if (my_function(...)) /* error condition */ and if my_function() does "return nlmsg_end()" this is of course wrong. Additionally, there's not a single place in the kernel that actually needs the message length returned, and if anyone needs it later then it'll be very easy to just use skb->len there. Remove this, and make the functions void. This removes a bunch of dead code as described above. The patch adds lines because I did - return nlmsg_end(...); + nlmsg_end(...); + return 0; I could have preserved all the function's return values by returning skb->len, but instead I've audited all the places calling the affected functions and found that none cared. A few places actually compared the return value with <= 0 in dump functionality, but that could just be changed to < 0 with no change in behaviour, so I opted for the more efficient version. One instance of the error I've made numerous times now is also present in net/phonet/pn_netlink.c in the route_dumpit() function - it didn't check for <0 or <=0 and thus broke out of the loop every single time. I've preserved this since it will (I think) have caused the messages to userspace to be formatted differently with just a single message for every SKB returned to userspace. It's possible that this isn't needed for the tools that actually use this, but I don't even know what they are so couldn't test that changing this behaviour would be acceptable. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-16 22:09:00 +01:00
ipv6: speedup inet6_dump_addr() When handling large number of netdevices, inet6_dump_addr() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the NETDEV_HASHENTRIES sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 04:11:50 +00:00
ipv6: provide addr and netconf dump consistency info This patch adds a dev_addr_genid for IPv6. The goal is to use it, combined with dev_base_seq to check if a change occurs during a netlink dump. If a change is detected, the flag NLM_F_DUMP_INTR is set in the first message after the dump was interrupted. Note that only dump of unicast addresses is checked (multicast and anycast are not checked). Reported-by: Junwei Zhang <junwei.zhang@6wind.com> Reported-by: Hongjun Li <hongjun.li@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-22 06:28:43 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: speedup inet6_dump_addr() When handling large number of netdevices, inet6_dump_addr() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the NETDEV_HASHENTRIES sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 04:11:50 +00:00
ipv6: convert idev_list to list macros Convert to list macro's for the list of addresses per interface in IPv6. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:13 +00:00
ipv6: speedup inet6_dump_addr() When handling large number of netdevices, inet6_dump_addr() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the NETDEV_HASHENTRIES sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 04:11:50 +00:00
netlink: Rename pid to portid to avoid confusion It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07 20:12:54 +00:00
ipv6: speedup inet6_dump_addr() When handling large number of netdevices, inet6_dump_addr() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the NETDEV_HASHENTRIES sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 04:11:50 +00:00
netlink: make nlmsg_end() and genlmsg_end() void Contrary to common expectations for an "int" return, these functions return only a positive value -- if used correctly they cannot even return 0 because the message header will necessarily be in the skb. This makes the very common pattern of if (genlmsg_end(...) < 0) { ... } be a whole bunch of dead code. Many places also simply do return nlmsg_end(...); and the caller is expected to deal with it. This also commonly (at least for me) causes errors, because it is very common to write if (my_function(...)) /* error condition */ and if my_function() does "return nlmsg_end()" this is of course wrong. Additionally, there's not a single place in the kernel that actually needs the message length returned, and if anyone needs it later then it'll be very easy to just use skb->len there. Remove this, and make the functions void. This removes a bunch of dead code as described above. The patch adds lines because I did - return nlmsg_end(...); + nlmsg_end(...); + return 0; I could have preserved all the function's return values by returning skb->len, but instead I've audited all the places calling the affected functions and found that none cared. A few places actually compared the return value with <= 0 in dump functionality, but that could just be changed to < 0 with no change in behaviour, so I opted for the more efficient version. One instance of the error I've made numerous times now is also present in net/phonet/pn_netlink.c in the route_dumpit() function - it didn't check for <0 or <=0 and thus broke out of the loop every single time. I've preserved this since it will (I think) have caused the messages to userspace to be formatted differently with just a single message for every SKB returned to userspace. It's possible that this isn't needed for the tools that actually use this, but I don't even know what they are so couldn't test that changing this behaviour would be acceptable. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-16 22:09:00 +01:00
ipv6: speedup inet6_dump_addr() When handling large number of netdevices, inet6_dump_addr() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the NETDEV_HASHENTRIES sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 04:11:50 +00:00
netlink: Rename pid to portid to avoid confusion It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07 20:12:54 +00:00
ipv6: speedup inet6_dump_addr() When handling large number of netdevices, inet6_dump_addr() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the NETDEV_HASHENTRIES sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 04:11:50 +00:00
netlink: make nlmsg_end() and genlmsg_end() void Contrary to common expectations for an "int" return, these functions return only a positive value -- if used correctly they cannot even return 0 because the message header will necessarily be in the skb. This makes the very common pattern of if (genlmsg_end(...) < 0) { ... } be a whole bunch of dead code. Many places also simply do return nlmsg_end(...); and the caller is expected to deal with it. This also commonly (at least for me) causes errors, because it is very common to write if (my_function(...)) /* error condition */ and if my_function() does "return nlmsg_end()" this is of course wrong. Additionally, there's not a single place in the kernel that actually needs the message length returned, and if anyone needs it later then it'll be very easy to just use skb->len there. Remove this, and make the functions void. This removes a bunch of dead code as described above. The patch adds lines because I did - return nlmsg_end(...); + nlmsg_end(...); + return 0; I could have preserved all the function's return values by returning skb->len, but instead I've audited all the places calling the affected functions and found that none cared. A few places actually compared the return value with <= 0 in dump functionality, but that could just be changed to < 0 with no change in behaviour, so I opted for the more efficient version. One instance of the error I've made numerous times now is also present in net/phonet/pn_netlink.c in the route_dumpit() function - it didn't check for <0 or <=0 and thus broke out of the loop every single time. I've preserved this since it will (I think) have caused the messages to userspace to be formatted differently with just a single message for every SKB returned to userspace. It's possible that this isn't needed for the tools that actually use this, but I don't even know what they are so couldn't test that changing this behaviour would be acceptable. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-16 22:09:00 +01:00
ipv6: speedup inet6_dump_addr() When handling large number of netdevices, inet6_dump_addr() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the NETDEV_HASHENTRIES sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 04:11:50 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: speedup inet6_dump_addr() When handling large number of netdevices, inet6_dump_addr() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the NETDEV_HASHENTRIES sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 04:11:50 +00:00
ipv6: provide addr and netconf dump consistency info This patch adds a dev_addr_genid for IPv6. The goal is to use it, combined with dev_base_seq to check if a change occurs during a netlink dump. If a change is detected, the flag NLM_F_DUMP_INTR is set in the first message after the dump was interrupted. Note that only dump of unicast addresses is checked (multicast and anycast are not checked). Reported-by: Junwei Zhang <junwei.zhang@6wind.com> Reported-by: Hongjun Li <hongjun.li@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-22 06:28:43 +00:00
ipv6: speedup inet6_dump_addr() When handling large number of netdevices, inet6_dump_addr() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the NETDEV_HASHENTRIES sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 04:11:50 +00:00
hlist: drop the node parameter from iterators I'm not sure why, but the hlist for each entry iterators were conceived list_for_each_entry(pos, head, member) The hlist ones were greedy and wanted an extra parameter: hlist_for_each_entry(tpos, pos, head, member) Why did they need an extra pos parameter? I'm not quite sure. Not only they don't really need it, it also prevents the iterator from looking exactly like the list iterator, which is unfortunate. Besides the semantic patch, there was some manual work required: - Fix up the actual hlist iterators in linux/list.h - Fix up the declaration of other iterators based on the hlist ones. - A very small amount of places were using the 'node' parameter, this was modified to use 'obj->member' instead. - Coccinelle didn't handle the hlist_for_each_entry_safe iterator properly, so those had to be fixed up manually. The semantic patch which is mostly the work of Peter Senna Tschudin is here: @@ iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host; type T; expression a,c,d,e; identifier b; statement S; @@ -T b; <+... when != b ( hlist_for_each_entry(a, - b, c, d) S | hlist_for_each_entry_continue(a, - b, c) S | hlist_for_each_entry_from(a, - b, c) S | hlist_for_each_entry_rcu(a, - b, c, d) S | hlist_for_each_entry_rcu_bh(a, - b, c, d) S | hlist_for_each_entry_continue_rcu_bh(a, - b, c) S | for_each_busy_worker(a, c, - b, d) S | ax25_uid_for_each(a, - b, c) S | ax25_for_each(a, - b, c) S | inet_bind_bucket_for_each(a, - b, c) S | sctp_for_each_hentry(a, - b, c) S | sk_for_each(a, - b, c) S | sk_for_each_rcu(a, - b, c) S | sk_for_each_from -(a, b) +(a) S + sk_for_each_from(a) S | sk_for_each_safe(a, - b, c, d) S | sk_for_each_bound(a, - b, c) S | hlist_for_each_entry_safe(a, - b, c, d, e) S | hlist_for_each_entry_continue_rcu(a, - b, c) S | nr_neigh_for_each(a, - b, c) S | nr_neigh_for_each_safe(a, - b, c, d) S | nr_node_for_each(a, - b, c) S | nr_node_for_each_safe(a, - b, c, d) S | - for_each_gfn_sp(a, c, d, b) S + for_each_gfn_sp(a, c, d) S | - for_each_gfn_indirect_valid_sp(a, c, d, b) S + for_each_gfn_indirect_valid_sp(a, c, d) S | for_each_host(a, - b, c) S | for_each_host_safe(a, - b, c, d) S | for_each_mesh_entry(a, - b, c, d) S ) ...+> [akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c] [akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c] [akpm@linux-foundation.org: checkpatch fixes] [akpm@linux-foundation.org: fix warnings] [akpm@linux-foudnation.org: redo intrusive kvm changes] Tested-by: Peter Senna Tschudin <peter.senna@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Gleb Natapov <gleb@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-27 17:06:00 -08:00
ipv6: speedup inet6_dump_addr() When handling large number of netdevices, inet6_dump_addr() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the NETDEV_HASHENTRIES sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 04:11:50 +00:00
net: fix netlink address dumping in IPv4/IPv6 When a dump is interrupted at the last device in a hash chain and then continued, "idx" won't get incremented past s_idx, so s_ip_idx is not reset when moving on to the next device. This means of all following devices only the last n - s_ip_idx addresses are dumped. Tested-by: Pawel Staszewski <pstaszewski@itcare.pl> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-03-26 20:27:49 -07:00
ipv6: speedup inet6_dump_addr() When handling large number of netdevices, inet6_dump_addr() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the NETDEV_HASHENTRIES sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 04:11:50 +00:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
ipv6: speedup inet6_dump_addr() When handling large number of netdevices, inet6_dump_addr() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the NETDEV_HASHENTRIES sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 04:11:50 +00:00
netlink: Fix bugs in nlmsg_end() conversions. Commit 053c095a82cf ("netlink: make nlmsg_end() and genlmsg_end() void") didn't catch all of the cases where callers were breaking out on the return value being equal to zero, which they no longer should when zero means success. Fix all such cases. Reported-by: Marcel Holtmann <marcel@holtmann.org> Reported-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-18 23:36:08 -05:00
ipv6: speedup inet6_dump_addr() When handling large number of netdevices, inet6_dump_addr() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the NETDEV_HASHENTRIES sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-12 04:11:50 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET]: Modify all rtnetlink methods to only work in the initial namespace (v2) Before I can enable rtnetlink to work in all network namespaces I need to be certain that something won't break. So this patch deliberately disables all of the rtnletlink methods in everything except the initial network namespace. After the methods have been audited this extra check can be disabled. Changes from v1: - added IPv6 addrlabel protection Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-12-01 00:21:31 +11:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET]: Modify all rtnetlink methods to only work in the initial namespace (v2) Before I can enable rtnetlink to work in all network namespaces I need to be certain that something won't break. So this patch deliberately disables all of the rtnletlink methods in everything except the initial network namespace. After the methods have been audited this extra check can be disabled. Changes from v1: - added IPv6 addrlabel protection Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-12-01 00:21:31 +11:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET]: Modify all rtnetlink methods to only work in the initial namespace (v2) Before I can enable rtnetlink to work in all network namespaces I need to be certain that something won't break. So this patch deliberately disables all of the rtnletlink methods in everything except the initial network namespace. After the methods have been audited this extra check can be disabled. Changes from v1: - added IPv6 addrlabel protection Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-12-01 00:21:31 +11:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
rtnetlink: Remove passing of attributes into rtnl_doit functions With decnet converted, we can finally get rid of rta_buf and its computations around it. It also gets rid of the minimal header length verification since all message handlers do that explicitly anyway. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-21 07:45:29 +00:00
[IPV6] ADDRCONF: Support get operation of single address Based on MIPL2 kernel patch. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:12 +09:00
[NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS. Introduce per-sock inlines: sock_net(), sock_net_set() and per-inet_timewait_sock inlines: twsk_net(), twsk_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-26 02:26:21 +09:00
[IPV6] address: Convert address lookup to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:10:50 -07:00
ipv6: add support of peer address This patch adds the support of peer address for IPv6. For example, it is possible to specify the remote end of a 6inY tunnel. This was already possible in IPv4: ip addr add ip1 peer ip2 dev dev1 The peer address is specified with IFA_ADDRESS and the local address with IFA_LOCAL (like explained in include/uapi/linux/if_addr.h). Note that the API is not changed, because before this patch, it was not possible to specify two different addresses in IFA_LOCAL and IFA_REMOTE. There is a small change for the dump: if the peer is different from ::, IFA_ADDRESS will contain the peer address instead of the local address. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-16 22:32:00 +00:00
[IPV6] ADDRCONF: Support get operation of single address Based on MIPL2 kernel patch. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:12 +09:00
[IPV6] address: Convert address lookup to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:10:50 -07:00
[IPV6] ADDRCONF: Support get operation of single address Based on MIPL2 kernel patch. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:12 +09:00
ipv6: add support of peer address This patch adds the support of peer address for IPv6. For example, it is possible to specify the remote end of a 6inY tunnel. This was already possible in IPv4: ip addr add ip1 peer ip2 dev dev1 The peer address is specified with IFA_ADDRESS and the local address with IFA_LOCAL (like explained in include/uapi/linux/if_addr.h). Note that the API is not changed, because before this patch, it was not possible to specify two different addresses in IFA_LOCAL and IFA_REMOTE. There is a small change for the dump: if the peer is different from ::, IFA_ADDRESS will contain the peer address instead of the local address. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-16 22:32:00 +00:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
[IPV6] address: Convert address lookup to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:10:50 -07:00
[IPV6] ADDRCONF: Support get operation of single address Based on MIPL2 kernel patch. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:12 +09:00
[NETNS][IPV6] addrconf - make addrconf per namespace All the infrastructure to propagate the network namespace information is ready. Make use of it. There is a special case here between the initial network namespace and the other namespaces: * When ipv6 is initialized at boot time (aka in the init_net), it registers to the notifier callback. So addrconf_notify will be called as many time as there are network devices setup on the system and the function will add ipv6 addresses to the network devices. But the first device which needs to have its ipv6 address setup is the loopback, unfortunatly this is not the case. So the loopback address is setup manually in the ipv6 init function. * With the network namespace, this ordering problem does not appears because notifier is already setup and active, so as soon as we register the loopback the ipv6 address is setup and it will be the first device. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-05 10:47:47 -08:00
[IPV6] ADDRCONF: Support get operation of single address Based on MIPL2 kernel patch. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:12 +09:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
[IPV6] address: Convert address lookup to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:10:50 -07:00
[IPV6] ADDRCONF: Support get operation of single address Based on MIPL2 kernel patch. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:12 +09:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
[IPV6] ADDRCONF: Support get operation of single address Based on MIPL2 kernel patch. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:12 +09:00
[IPV6] address: Convert address lookup to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:10:50 -07:00
[IPV6] ADDRCONF: Support get operation of single address Based on MIPL2 kernel patch. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:12 +09:00
netlink: Rename pid to portid to avoid confusion It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07 20:12:54 +00:00
[IPV6] ADDRCONF: Support get operation of single address Based on MIPL2 kernel patch. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:12 +09:00
[NETLINK]: Don't BUG on undersized allocations Currently netlink users BUG when the allocated skb for an event notification is undersized. While this is certainly a kernel bug, its not critical and crashing the kernel is too drastic, especially when considering that these errors have appeared multiple times in the past and it BUGs even if no listeners are present. This patch replaces BUG by WARN_ON and changes the notification functions to inform potential listeners of undersized allocations using a unique error code (EMSGSIZE). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-31 23:16:40 -08:00
netlink: Rename pid to portid to avoid confusion It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07 20:12:54 +00:00
[IPV6] address: Convert address lookup to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:10:50 -07:00
[IPV6] ADDRCONF: Support get operation of single address Based on MIPL2 kernel patch. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:12 +09:00
[IPV6] address: Convert address lookup to new netlink api Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:10:50 -07:00
[IPV6] ADDRCONF: Support get operation of single address Based on MIPL2 kernel patch. Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-07-28 18:12:12 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS. Introduce per-net_device inlines: dev_net(), dev_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25 21:47:49 +09:00
[IPv6] address: Convert address notification to use rtnl_notify() Fixes a wrong use of current->pid as netlink pid. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-15 00:35:02 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] address: Convert address dumping to new netlink api Replaces INET6_IFADDR_RTA_SPACE with a new function calculating the total required message size for all address messages. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18 00:12:35 -07:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
[IPv6] address: Convert address notification to use rtnl_notify() Fixes a wrong use of current->pid as netlink pid. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-15 00:35:02 -07:00
[NETLINK]: Don't BUG on undersized allocations Currently netlink users BUG when the allocated skb for an event notification is undersized. While this is certainly a kernel bug, its not critical and crashing the kernel is too drastic, especially when considering that these errors have appeared multiple times in the past and it BUGs even if no listeners are present. This patch replaces BUG by WARN_ON and changes the notification functions to inform potential listeners of undersized allocations using a unique error code (EMSGSIZE). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-31 23:16:40 -08:00
netlink: change nlmsg_notify() return value logic This patch changes the return value of nlmsg_notify() as follows: If NETLINK_BROADCAST_ERROR is set by any of the listeners and an error in the delivery happened, return the broadcast error; else if there are no listeners apart from the socket that requested a change with the echo flag, return the result of the unicast notification. Thus, with this patch, the unicast notification is handled in the same way of a broadcast listener that has set the NETLINK_BROADCAST_ERROR socket flag. This patch is useful in case that the caller of nlmsg_notify() wants to know the result of the delivery of a netlink notification (including the broadcast delivery) and take any action in case that the delivery failed. For example, ctnetlink can drop packets if the event delivery failed to provide reliable logging and state-synchronization at the cost of dropping packets. This patch also modifies the rtnetlink code to ignore the return value of rtnl_notify() in all callers. The function rtnl_notify() (before this patch) returned the error of the unicast notification which makes rtnl_set_sk_err() reports errors to all listeners. This is not of any help since the origin of the change (the socket that requested the echoing) notices the ENOBUFS error if the notification fails and should resync itself. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-24 23:18:28 -08:00
[IPv6] address: Convert address notification to use rtnl_notify() Fixes a wrong use of current->pid as netlink pid. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-15 00:35:02 -07:00
[NETNS][IPV6] addrconf - make addrconf per namespace All the infrastructure to propagate the network namespace information is ready. Make use of it. There is a special case here between the initial network namespace and the other namespaces: * When ipv6 is initialized at boot time (aka in the init_net), it registers to the notifier callback. So addrconf_notify will be called as many time as there are network devices setup on the system and the function will add ipv6 addresses to the network devices. But the first device which needs to have its ipv6 address setup is the loopback, unfortunatly this is not the case. So the loopback address is setup manually in the ipv6 init function. * With the network namespace, this ordering problem does not appears because notifier is already setup and active, so as soon as we register the loopback the ipv6 address is setup and it will be the first device. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-05 10:47:47 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET]: fix up misplaced inlines. Turning up the warnings on gcc makes it emit warnings about the placement of 'inline' in function declarations. Here's everything that was under net/ Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-22 12:27:49 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPv6] iflink: Convert IPv6's RTM_GETLINK to use the new netlink api By replacing the current method of exporting the device configuration which included allocating a temporary buffer, copying ipv6_devconf into it and copying that buffer into the message with a method that uses nla_reserve() allowing to copy the device configuration directly into the skb data buffer, a GFP_ATOMIC allocation could be removed. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-14 19:53:58 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Expose IFLA_PROTINFO timer values in msecs instead of jiffies IFLA_PROTINFO exposes timer related per device settings in jiffies. Change it to expose these values in msecs like the sysctl interface does. I did not find any users of IFLA_PROTINFO which rely on any of these values and even if there are, they are likely already broken because there is no way for them to reliably convert such a value to another time format. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-17 01:44:24 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: make unsolicited report intervals configurable for mld Commit cab70040dfd95ee32144f02fade64f0cb94f31a0 ("net: igmp: Reduce Unsolicited report interval to 1s when using IGMPv3") and 2690048c01f32bf45d1c1e1ab3079bc10ad2aea7 ("net: igmp: Allow user-space configuration of igmp unsolicited report interval") by William Manley made igmp unsolicited report intervals configurable per interface and corrected the interval of unsolicited igmpv3 report messages resendings to 1s. Same needs to be done for IPv6: MLDv1 (RFC2710 7.10.): 10 seconds MLDv2 (RFC3810 9.11.): 1 second Both intervals are configurable via new procfs knobs mldv1_unsolicited_report_interval and mldv2_unsolicited_report_interval. (also added .force_mld_version to ipv6_devconf_dflt to bring structs in line without semantic changes) v2: a) Joined documentation update for IPv4 and IPv6 MLD/IGMP unsolicited_report_interval procfs knobs. b) incorporate stylistic feedback from William Manley v3: a) add new DEVCONF_* values to the end of the enum (thanks to David Miller) Cc: Cong Wang <xiyou.wangcong@gmail.com> Cc: William Manley <william.manley@youview.com> Cc: Benjamin LaHaise <bcrl@kvack.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-14 01:03:46 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: ROUTE: Add accept_ra_defrtr sysctl. This controls whether we accept default router information in RAs. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 16:55:08 -08:00
net/ipv6: add sysctl option accept_ra_min_hop_limit Commit 6fd99094de2b ("ipv6: Don't reduce hop limit for an interface") disabled accept hop limit from RA if it is smaller than the current hop limit for security stuff. But this behavior kind of break the RFC definition. RFC 4861, 6.3.4. Processing Received Router Advertisements A Router Advertisement field (e.g., Cur Hop Limit, Reachable Time, and Retrans Timer) may contain a value denoting that it is unspecified. In such cases, the parameter should be ignored and the host should continue using whatever value it is already using. If the received Cur Hop Limit value is non-zero, the host SHOULD set its CurHopLimit variable to the received value. So add sysctl option accept_ra_min_hop_limit to let user choose the minimum hop limit value they can accept from RA. And set default to 1 to meet RFC standards. Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Acked-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-30 14:28:42 +08:00
[IPV6]: ADDRCONF: Add accept_ra_pinfo sysctl. This controls whether we accept Prefix Information in RAs. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 16:55:26 -08:00
[IPV6]: ROUTE: Add accept_ra_rtr_pref sysctl. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 17:05:30 -08:00
ipv6: Expose IFLA_PROTINFO timer values in msecs instead of jiffies IFLA_PROTINFO exposes timer related per device settings in jiffies. Change it to expose these values in msecs like the sysctl interface does. I did not find any users of IFLA_PROTINFO which rely on any of these values and even if there are, they are likely already broken because there is no way for them to reliably convert such a value to another time format. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-17 01:44:24 +00:00
[IPV6]: Fix up some CONFIG typos Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-30 14:30:10 -08:00
[IPV6]: ROUTE: Add accept_ra_rt_info_max_plen sysctl. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 17:07:03 -08:00
[IPV6]: ROUTE: Add accept_ra_rtr_pref sysctl. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 17:05:30 -08:00
[IPV6] NDISC: Add proxy_ndp sysctl. We do not always need proxy NDP functionality even we enable forwarding. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:43:49 -07:00
[IPV6]: Disallow RH0 by default. A security issue is emerging. Disallow Routing Header Type 0 by default as we have been doing for IPv4. Note: We allow RH2 by default because it is harmless. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-24 14:58:30 -07:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
net: ipv6: Add a sysctl to make optimistic addresses useful candidates Add a sysctl that causes an interface's optimistic addresses to be considered equivalent to other non-deprecated addresses for source address selection purposes. Preferred addresses will still take precedence over optimistic addresses, subject to other ranking in the source address selection algorithm. This is useful where different interfaces are connected to different networks from different ISPs (e.g., a cell network and a home wifi network). The current behaviour complies with RFC 3484/6724, and it makes sense if the host has only one interface, or has multiple interfaces on the same network (same or cooperating administrative domain(s), but not in the multiple distinct networks case. For example, if a mobile device has an IPv6 address on an LTE network and then connects to IPv6-enabled wifi, while the wifi IPv6 address is undergoing DAD, IPv6 connections will try use the wifi default route with the LTE IPv6 address, and will get stuck until they time out. Also, because optimistic nodes can receive frames, issue an RTM_NEWADDR as soon as DAD starts (with the IFA_F_OPTIMSTIC flag appropriately set). A second RTM_NEWADDR is sent if DAD completes (the address flags have changed), otherwise an RTM_DELADDR is sent. Also: add an entry in ip-sysctl.txt for optimistic_dad. Signed-off-by: Erik Kline <ek@google.com> Acked-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-28 18:11:14 +09:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
[IPV6] MROUTE: Support multicast forwarding. Based on ancient patch by Mickael Hoerdt <hoerdt@clarinet.u-strasbg.fr>, which is available at <http://www-r2.u-strasbg.fr/~hoerdt/dev/linux_ipv6_mforwarding/patch-linux-ipv6-mforwarding-0.1a>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-03 09:22:53 +09:00
ipv6: Add disable_ipv6 sysctl to disable IPv6 operaion on specific interface. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-28 14:17:11 +09:00
ipv6 addrconf: add accept_dad sysctl to control DAD operation. - If 0, disable DAD. - If 1, perform DAD (default). - If >1, perform DAD and disable IPv6 operation if DAD for MAC-based link-local address has been failed (RFC4862 5.4.5). We do not follow RFC4862 by default. Refer to the netdev thread entitled "Linux IPv6 DAD not full conform to RFC 4862 ?" http://www.spinics.net/lists/netdev/msg52027.html Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-28 14:18:38 +09:00
ipv6: fix devconf after adding force_tllao option Signed-off-by: Cosmin Ratiu <cratiu@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-09 03:11:14 +00:00
ipv6: add knob to send unsolicited ND on link-layer address change This patch introduces a new knob ndisc_notify. If enabled, the kernel will transmit an unsolicited neighbour advertisement on link-layer address change to update the neighbour tables of the corresponding hosts more quickly. This is the equivalent to arp_notify in ipv4 world. Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-06 16:46:20 +00:00
ipv6: drop fragmented ndisc packets by default (RFC 6980) This patch implements RFC6980: Drop fragmented ndisc packets by default. If a fragmented ndisc packet is received the user is informed that it is possible to disable the check. Cc: Fernando Gont <fernando@gont.com.ar> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-27 01:36:51 +02:00
ipv6: Allow accepting RA from local IP addresses. This can be used in virtual networking applications, and may have other uses as well. The option is disabled by default. A specific use case is setting up virtual routers, bridges, and hosts on a single OS without the use of network namespaces or virtual machines. With proper use of ip rules, routing tables, veth interface pairs and/or other virtual interfaces, and applications that can bind to interfaces and/or IP addresses, it is possibly to create one or more virtual routers with multiple hosts attached. The host interfaces can act as IPv6 systems, with radvd running on the ports in the virtual routers. With the option provided in this patch enabled, those hosts can now properly obtain IPv6 addresses from the radvd. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 14:44:53 -07:00
net: ipv6: Add sysctl entry to disable MTU updates from RA The kernel forcefully applies MTU values received in router advertisements provided the new MTU is less than the current. This behavior is undesirable when the user space is managing the MTU. Instead a sysctl flag 'accept_ra_mtu' is introduced such that the user space can control whether or not RA provided MTU updates should be applied. The default behavior is unchanged; user space must explicitly set this flag to 0 for RA MTUs to be ignored. Signed-off-by: Harout Hedeshian <harouth@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-20 10:06:05 -07:00
net: ipv6 sysctl option to ignore routes when nexthop link is down Like the ipv4 patch with a similar title, this adds a sysctl to allow the user to change routing behavior based on whether or not the interface associated with the nexthop was an up or down link. The default setting preserves the current behavior, but anyone that enables it will notice that nexthops on down interfaces will no longer be selected: net.ipv6.conf.all.ignore_routes_with_linkdown = 0 net.ipv6.conf.default.ignore_routes_with_linkdown = 0 net.ipv6.conf.lo.ignore_routes_with_linkdown = 0 ... When the above sysctls are set, not only will link status be reported to userspace, but an indication that a nexthop is dead and will not be used is also reported. 1000::/8 via 7000::2 dev p7p1 metric 1024 dead linkdown pref medium 1000::/8 via 8000::2 dev p8p1 metric 1024 pref medium 7000::/8 dev p7p1 proto kernel metric 256 dead linkdown pref medium 8000::/8 dev p8p1 proto kernel metric 256 pref medium 9000::/8 via 8000::2 dev p8p1 metric 2048 pref medium 9000::/8 via 7000::2 dev p7p1 metric 1024 dead linkdown pref medium fe80::/64 dev p7p1 proto kernel metric 256 dead linkdown pref medium fe80::/64 dev p8p1 proto kernel metric 256 pref medium This also adds devconf support and notification when sysctl values change. v2: drop use of rt6i_nhflags since it is not needed right now Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: Dinesh Dutt <ddutt@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-13 10:39:01 -04:00
ipv6: introduce secret_stable to ipv6_devconf This patch implements the procfs logic for the stable_address knob: The secret is formatted as an ipv6 address and will be stored per interface and per namespace. We track initialized flag and return EIO errors until the secret is set. We don't inherit the secret to newly created namespaces. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:00 +01:00
ipv6: sysctl to restrict candidate source addresses Per RFC 6724, section 4, "Candidate Source Addresses": It is RECOMMENDED that the candidate source addresses be the set of unicast addresses assigned to the interface that will be used to send to the destination (the "outgoing" interface). Add a sysctl to enable this behaviour. Signed-off-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-22 16:38:25 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: AF_INET6 link address family IPv6 already exposes some address family data via netlink in the IFLA_PROTINFO attribute if RTM_GETLINK request is sent with the address family set to AF_INET6. We take over this format and reuse all the code. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16 04:33:57 +00:00
net: ipv6: add tokenized interface identifier support This patch adds support for IPv6 tokenized IIDs, that allow for administrators to assign well-known host-part addresses to nodes whilst still obtaining global network prefix from Router Advertisements. It is currently in draft status. The primary target for such support is server platforms where addresses are usually manually configured, rather than using DHCPv6 or SLAAC. By using tokenised identifiers, hosts can still determine their network prefix by use of SLAAC, but more readily be automatically renumbered should their network prefix change. [...] The disadvantage with static addresses is that they are likely to require manual editing should the network prefix in use change. If instead there were a method to only manually configure the static identifier part of the IPv6 address, then the address could be automatically updated when a new prefix was introduced, as described in [RFC4192] for example. In such cases a DNS server might be configured with such a tokenised interface identifier of ::53, and SLAAC would use the token in constructing the interface address, using the advertised prefix. [...] http://tools.ietf.org/html/draft-chown-6man-tokenised-ipv6-identifiers-02 The implementation is partially based on top of Mark K. Thompson's proof of concept. However, it uses the Netlink interface for configuration resp. data retrival, so that it can be easily extended in future. Successfully tested by myself. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08 04:01:30 +00:00
ipv6: AF_INET6 link address family IPv6 already exposes some address family data via netlink in the IFLA_PROTINFO attribute if RTM_GETLINK request is sent with the address family set to AF_INET6. We take over this format and reuse all the code. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16 04:33:57 +00:00
[NETLINK]: Do precise netlink message allocations where possible Account for the netlink message header size directly in nlmsg_new() instead of relying on the caller calculate it correctly. Replaces error handling of message construction functions when constructing notifications with bug traps since a failure implies a bug in calculating the size of the skb. Signed-off-by: Thomas Graf <tgraf@suug.ch> Acked-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-10 14:10:15 -08:00
net: addr IFLA_OPERSTATE to netlink message for ipv6 ifinfo This is useful information to include in ipv6 netlink messages that report interface information. IFLA_OPERSTATE is already included in ipv4 messages, but missing for ipv6. This closes that gap. Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-13 15:26:35 -04:00
ipv6: AF_INET6 link address family IPv6 already exposes some address family data via netlink in the IFLA_PROTINFO attribute if RTM_GETLINK request is sent with the address family set to AF_INET6. We take over this format and reuse all the code. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16 04:33:57 +00:00
[NETLINK]: Do precise netlink message allocations where possible Account for the netlink message header size directly in nlmsg_new() instead of relying on the caller calculate it correctly. Replaces error handling of message construction functions when constructing notifications with bug traps since a failure implies a bug in calculating the size of the skb. Signed-off-by: Thomas Graf <tgraf@suug.ch> Acked-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-10 14:10:15 -08:00
[IPV6]: Sum real space for RTAs. This patch fixes RTNLGRP_IPV6_IFINFO netlink notifications. Issue pointed out by Patrick McHardy <kaber@trash.net>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-17 22:48:48 -07:00
ipv6: reduce per device ICMP mib sizes ipv6 has per device ICMP SNMP counters, taking too much space because they use percpu storage. needed size per device is : (512+4)*sizeof(long)*number_of_possible_cpus*2 On a 32bit kernel, 16 possible cpus, this wastes more than 64kbytes of memory per ipv6 enabled network device, taken in vmalloc pool. Since ICMP messages are rare, just use shared counters (atomic_long_t) Per network space ICMP counters are still using percpu memory, we might also convert them to shared counters in a future patch. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Denys Fedoryshchenko <denys@visp.net.lb> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-19 01:14:23 +00:00
percpu: add __percpu sparse annotations to net Add __percpu sparse annotations to net. These annotations are to make sparse consider percpu variables to be in a different address space and warn if accessed without going through percpu accessors. This patch doesn't affect normal builds. The macro and type tricks around snmp stats make things a bit interesting. DEFINE/DECLARE_SNMP_STAT() macros mark the target field as __percpu and SNMP_UPD_PO_STATS() macro is updated accordingly. All snmp_mib_*() users which used to cast the argument to (void **) are updated to cast it to (void __percpu **). Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: David S. Miller <davem@davemloft.net> Cc: Patrick McHardy <kaber@trash.net> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: Vlad Yasevich <vladislav.yasevich@hp.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-16 15:20:26 +00:00
[IPV6]: Consolidate common SNMP code This patch moves the non-proc SNMP code into addrconf.c and reuses IPv4 SNMP code where applicable. As a result we can skip proc.o if /proc is disabled. Note that I've made a number of functions static since they're only used by addrconf.c for now. If they ever get used elsewhere we can always remove the static. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-24 21:54:09 -07:00
ipv6: reduce per device ICMP mib sizes ipv6 has per device ICMP SNMP counters, taking too much space because they use percpu storage. needed size per device is : (512+4)*sizeof(long)*number_of_possible_cpus*2 On a 32bit kernel, 16 possible cpus, this wastes more than 64kbytes of memory per ipv6 enabled network device, taken in vmalloc pool. Since ICMP messages are rare, just use shared counters (atomic_long_t) Per network space ICMP counters are still using percpu memory, we might also convert them to shared counters in a future patch. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Denys Fedoryshchenko <denys@visp.net.lb> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-19 01:14:23 +00:00
[IPV6]: Consolidate common SNMP code This patch moves the non-proc SNMP code into addrconf.c and reuses IPv4 SNMP code where applicable. As a result we can skip proc.o if /proc is disabled. Note that I've made a number of functions static since they're only used by addrconf.c for now. If they ever get used elsewhere we can always remove the static. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-24 21:54:09 -07:00
net: clean up snmp stats code commit 8f0ea0fe3a036a47767f9c80e (snmp: reduce percpu needs by 50%) reduced snmp array size to 1, so technically it doesn't have to be an array any more. What's more, after the following commit: commit 933393f58fef9963eac61db8093689544e29a600 Date: Thu Dec 22 11:58:51 2011 -0600 percpu: Remove irqsafe_cpu_xxx variants We simply say that regular this_cpu use must be safe regardless of preemption and interrupt state. That has no material change for x86 and s390 implementations of this_cpu operations. However, arches that do not provide their own implementation for this_cpu operations will now get code generated that disables interrupts instead of preemption. probably no arch wants to have SNMP_ARRAY_SZ == 2. At least after almost 3 years, no one complains. So, just convert the array to a single pointer and remove snmp_mib_init() and snmp_mib_free() as well. Cc: Christoph Lameter <cl@linux.com> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 15:55:55 -07:00
net: Optimize snmp stat aggregation by walking all the percpu data at once Docker container creation linearly increased from around 1.6 sec to 7.5 sec (at 1000 containers) and perf data showed 50% ovehead in snmp_fold_field. reason: currently __snmp6_fill_stats64 calls snmp_fold_field that walks through per cpu data of an item (iteratively for around 36 items). idea: This patch tries to aggregate the statistics by going through all the items of each cpu sequentially which is reducing cache misses. Docker creation got faster by more than 2x after the patch. Result: Before After Docker creation time 6.836s 3.25s cache miss 2.7% 1.41% perf before: 50.73% docker [kernel.kallsyms] [k] snmp_fold_field 9.07% swapper [kernel.kallsyms] [k] snooze_loop 3.49% docker [kernel.kallsyms] [k] veth_stats_one 2.85% swapper [kernel.kallsyms] [k] _raw_spin_lock perf after: 10.57% docker docker [.] scanblock 8.37% swapper [kernel.kallsyms] [k] snooze_loop 6.91% docker [kernel.kallsyms] [k] snmp_get_cpu_field 6.67% docker [kernel.kallsyms] [k] veth_stats_one changes/ideas suggested: Using buffer in stack (Eric), Usage of memset (David), Using memcpy in place of unaligned_put (Joe). Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-30 11:29:42 +05:30
snmp: 64bit ipstats_mib for all arches /proc/net/snmp and /proc/net/netstat expose SNMP counters. Width of these counters is either 32 or 64 bits, depending on the size of "unsigned long" in kernel. This means user program parsing these files must already be prepared to deal with 64bit values, regardless of user program being 32 or 64 bit. This patch introduces 64bit snmp values for IPSTAT mib, where some counters can wrap pretty fast if they are 32bit wide. # netstat -s|egrep "InOctets|OutOctets" InOctets: 244068329096 OutOctets: 244069348848 Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-30 13:31:19 -07:00
net: Optimize snmp stat aggregation by walking all the percpu data at once Docker container creation linearly increased from around 1.6 sec to 7.5 sec (at 1000 containers) and perf data showed 50% ovehead in snmp_fold_field. reason: currently __snmp6_fill_stats64 calls snmp_fold_field that walks through per cpu data of an item (iteratively for around 36 items). idea: This patch tries to aggregate the statistics by going through all the items of each cpu sequentially which is reducing cache misses. Docker creation got faster by more than 2x after the patch. Result: Before After Docker creation time 6.836s 3.25s cache miss 2.7% 1.41% perf before: 50.73% docker [kernel.kallsyms] [k] snmp_fold_field 9.07% swapper [kernel.kallsyms] [k] snooze_loop 3.49% docker [kernel.kallsyms] [k] veth_stats_one 2.85% swapper [kernel.kallsyms] [k] _raw_spin_lock perf after: 10.57% docker docker [.] scanblock 8.37% swapper [kernel.kallsyms] [k] snooze_loop 6.91% docker [kernel.kallsyms] [k] snmp_get_cpu_field 6.67% docker [kernel.kallsyms] [k] veth_stats_one changes/ideas suggested: Using buffer in stack (Eric), Usage of memset (David), Using memcpy in place of unaligned_put (Joe). Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-30 11:29:42 +05:30
snmp: 64bit ipstats_mib for all arches /proc/net/snmp and /proc/net/netstat expose SNMP counters. Width of these counters is either 32 or 64 bits, depending on the size of "unsigned long" in kernel. This means user program parsing these files must already be prepared to deal with 64bit values, regardless of user program being 32 or 64 bit. This patch introduces 64bit snmp values for IPSTAT mib, where some counters can wrap pretty fast if they are 32bit wide. # netstat -s|egrep "InOctets|OutOctets" InOctets: 244068329096 OutOctets: 244069348848 Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-30 13:31:19 -07:00
net: Optimize snmp stat aggregation by walking all the percpu data at once Docker container creation linearly increased from around 1.6 sec to 7.5 sec (at 1000 containers) and perf data showed 50% ovehead in snmp_fold_field. reason: currently __snmp6_fill_stats64 calls snmp_fold_field that walks through per cpu data of an item (iteratively for around 36 items). idea: This patch tries to aggregate the statistics by going through all the items of each cpu sequentially which is reducing cache misses. Docker creation got faster by more than 2x after the patch. Result: Before After Docker creation time 6.836s 3.25s cache miss 2.7% 1.41% perf before: 50.73% docker [kernel.kallsyms] [k] snmp_fold_field 9.07% swapper [kernel.kallsyms] [k] snooze_loop 3.49% docker [kernel.kallsyms] [k] veth_stats_one 2.85% swapper [kernel.kallsyms] [k] _raw_spin_lock perf after: 10.57% docker docker [.] scanblock 8.37% swapper [kernel.kallsyms] [k] snooze_loop 6.91% docker [kernel.kallsyms] [k] snmp_get_cpu_field 6.67% docker [kernel.kallsyms] [k] veth_stats_one changes/ideas suggested: Using buffer in stack (Eric), Usage of memset (David), Using memcpy in place of unaligned_put (Joe). Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-30 11:29:42 +05:30
snmp: 64bit ipstats_mib for all arches /proc/net/snmp and /proc/net/netstat expose SNMP counters. Width of these counters is either 32 or 64 bits, depending on the size of "unsigned long" in kernel. This means user program parsing these files must already be prepared to deal with 64bit values, regardless of user program being 32 or 64 bit. This patch introduces 64bit snmp values for IPSTAT mib, where some counters can wrap pretty fast if they are 32bit wide. # netstat -s|egrep "InOctets|OutOctets" InOctets: 244068329096 OutOctets: 244069348848 Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-30 13:31:19 -07:00
net: Optimize snmp stat aggregation by walking all the percpu data at once Docker container creation linearly increased from around 1.6 sec to 7.5 sec (at 1000 containers) and perf data showed 50% ovehead in snmp_fold_field. reason: currently __snmp6_fill_stats64 calls snmp_fold_field that walks through per cpu data of an item (iteratively for around 36 items). idea: This patch tries to aggregate the statistics by going through all the items of each cpu sequentially which is reducing cache misses. Docker creation got faster by more than 2x after the patch. Result: Before After Docker creation time 6.836s 3.25s cache miss 2.7% 1.41% perf before: 50.73% docker [kernel.kallsyms] [k] snmp_fold_field 9.07% swapper [kernel.kallsyms] [k] snooze_loop 3.49% docker [kernel.kallsyms] [k] veth_stats_one 2.85% swapper [kernel.kallsyms] [k] _raw_spin_lock perf after: 10.57% docker docker [.] scanblock 8.37% swapper [kernel.kallsyms] [k] snooze_loop 6.91% docker [kernel.kallsyms] [k] snmp_get_cpu_field 6.67% docker [kernel.kallsyms] [k] veth_stats_one changes/ideas suggested: Using buffer in stack (Eric), Usage of memset (David), Using memcpy in place of unaligned_put (Joe). Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-30 11:29:42 +05:30
snmp: 64bit ipstats_mib for all arches /proc/net/snmp and /proc/net/netstat expose SNMP counters. Width of these counters is either 32 or 64 bits, depending on the size of "unsigned long" in kernel. This means user program parsing these files must already be prepared to deal with 64bit values, regardless of user program being 32 or 64 bit. This patch introduces 64bit snmp values for IPSTAT mib, where some counters can wrap pretty fast if they are 32bit wide. # netstat -s|egrep "InOctets|OutOctets" InOctets: 244068329096 OutOctets: 244069348848 Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-30 13:31:19 -07:00
[IPV6]: Consolidate common SNMP code This patch moves the non-proc SNMP code into addrconf.c and reuses IPv4 SNMP code where applicable. As a result we can skip proc.o if /proc is disabled. Note that I've made a number of functions static since they're only used by addrconf.c for now. If they ever get used elsewhere we can always remove the static. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-24 21:54:09 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
[IPV6]: Consolidate common SNMP code This patch moves the non-proc SNMP code into addrconf.c and reuses IPv4 SNMP code where applicable. As a result we can skip proc.o if /proc is disabled. Note that I've made a number of functions static since they're only used by addrconf.c for now. If they ever get used elsewhere we can always remove the static. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-24 21:54:09 -07:00
net: Optimize snmp stat aggregation by walking all the percpu data at once Docker container creation linearly increased from around 1.6 sec to 7.5 sec (at 1000 containers) and perf data showed 50% ovehead in snmp_fold_field. reason: currently __snmp6_fill_stats64 calls snmp_fold_field that walks through per cpu data of an item (iteratively for around 36 items). idea: This patch tries to aggregate the statistics by going through all the items of each cpu sequentially which is reducing cache misses. Docker creation got faster by more than 2x after the patch. Result: Before After Docker creation time 6.836s 3.25s cache miss 2.7% 1.41% perf before: 50.73% docker [kernel.kallsyms] [k] snmp_fold_field 9.07% swapper [kernel.kallsyms] [k] snooze_loop 3.49% docker [kernel.kallsyms] [k] veth_stats_one 2.85% swapper [kernel.kallsyms] [k] _raw_spin_lock perf after: 10.57% docker docker [.] scanblock 8.37% swapper [kernel.kallsyms] [k] snooze_loop 6.91% docker [kernel.kallsyms] [k] snmp_get_cpu_field 6.67% docker [kernel.kallsyms] [k] veth_stats_one changes/ideas suggested: Using buffer in stack (Eric), Usage of memset (David), Using memcpy in place of unaligned_put (Joe). Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-30 11:29:42 +05:30
[IPV6]: Consolidate common SNMP code This patch moves the non-proc SNMP code into addrconf.c and reuses IPv4 SNMP code where applicable. As a result we can skip proc.o if /proc is disabled. Note that I've made a number of functions static since they're only used by addrconf.c for now. If they ever get used elsewhere we can always remove the static. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-24 21:54:09 -07:00
ipv6: reduce per device ICMP mib sizes ipv6 has per device ICMP SNMP counters, taking too much space because they use percpu storage. needed size per device is : (512+4)*sizeof(long)*number_of_possible_cpus*2 On a 32bit kernel, 16 possible cpus, this wastes more than 64kbytes of memory per ipv6 enabled network device, taken in vmalloc pool. Since ICMP messages are rare, just use shared counters (atomic_long_t) Per network space ICMP counters are still using percpu memory, we might also convert them to shared counters in a future patch. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Denys Fedoryshchenko <denys@visp.net.lb> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-19 01:14:23 +00:00
[IPV6]: Consolidate common SNMP code This patch moves the non-proc SNMP code into addrconf.c and reuses IPv4 SNMP code where applicable. As a result we can skip proc.o if /proc is disabled. Note that I've made a number of functions static since they're only used by addrconf.c for now. If they ever get used elsewhere we can always remove the static. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-24 21:54:09 -07:00
rtnetlink: RTEXT_FILTER_SKIP_STATS support to avoid dumping inet/inet6 stats Many commonly used functions like getifaddrs() invoke RTM_GETLINK to dump the interface information, and do not need the the AF_INET6 statististics that are always returned by default from rtnl_fill_ifinfo(). Computing the statistics can be an expensive operation that impacts scaling, so it is desirable to avoid this if the information is not needed. This patch adds a the RTEXT_FILTER_SKIP_STATS extended info flag that can be passed with netlink_request() to avoid statistics computation for the ifinfo path. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-11 16:48:48 -04:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] SNMP: Netlink interface. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-20 15:56:20 -07:00
[IPv6] iflink: Convert IPv6's RTM_GETLINK to use the new netlink api By replacing the current method of exporting the device configuration which included allocating a temporary buffer, copying ipv6_devconf into it and copying that buffer into the message with a method that uses nla_reserve() allowing to copy the device configuration directly into the skb data buffer, a GFP_ATOMIC allocation could be removed. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-14 19:53:58 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Stop using NLA_PUT*(). These macros contain a hidden goto, and are thus extremely error prone and make code hard to audit. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-01 20:27:33 -04:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/bonding/bond_main.c net/core/net-sysfs.c net/ipv6/addrconf.c
2010-11-19 13:13:47 -08:00
neigh: convert parms to an array This patch converts the neigh param members to an array. This allows easier manipulation which will be needed later on to provide better management of default values. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-07 19:26:53 +01:00
ipv6: Stop using NLA_PUT*(). These macros contain a hidden goto, and are thus extremely error prone and make code hard to audit. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-01 20:27:33 -04:00
[IPV6] SNMP: Netlink interface. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-20 15:56:20 -07:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
[IPv6] iflink: Convert IPv6's RTM_GETLINK to use the new netlink api By replacing the current method of exporting the device configuration which included allocating a temporary buffer, copying ipv6_devconf into it and copying that buffer into the message with a method that uses nla_reserve() allowing to copy the device configuration directly into the skb data buffer, a GFP_ATOMIC allocation could be removed. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-14 19:53:58 -08:00
[IPV6] SNMP: Netlink interface. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-20 15:56:20 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] SNMP: Netlink interface. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-20 15:56:20 -07:00
rtnetlink: RTEXT_FILTER_SKIP_STATS support to avoid dumping inet/inet6 stats Many commonly used functions like getifaddrs() invoke RTM_GETLINK to dump the interface information, and do not need the the AF_INET6 statististics that are always returned by default from rtnl_fill_ifinfo(). Computing the statistics can be an expensive operation that impacts scaling, so it is desirable to avoid this if the information is not needed. This patch adds a the RTEXT_FILTER_SKIP_STATS extended info flag that can be passed with netlink_request() to avoid statistics computation for the ifinfo path. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-11 16:48:48 -04:00
[IPV6] SNMP: Netlink interface. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-20 15:56:20 -07:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
[IPV6] SNMP: Netlink interface. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-20 15:56:20 -07:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
[IPV6] SNMP: Netlink interface. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-20 15:56:20 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: ipv6: add tokenized interface identifier support This patch adds support for IPv6 tokenized IIDs, that allow for administrators to assign well-known host-part addresses to nodes whilst still obtaining global network prefix from Router Advertisements. It is currently in draft status. The primary target for such support is server platforms where addresses are usually manually configured, rather than using DHCPv6 or SLAAC. By using tokenised identifiers, hosts can still determine their network prefix by use of SLAAC, but more readily be automatically renumbered should their network prefix change. [...] The disadvantage with static addresses is that they are likely to require manual editing should the network prefix in use change. If instead there were a method to only manually configure the static identifier part of the IPv6 address, then the address could be automatically updated when a new prefix was introduced, as described in [RFC4192] for example. In such cases a DNS server might be configured with such a tokenised interface identifier of ::53, and SLAAC would use the token in constructing the interface address, using the advertised prefix. [...] http://tools.ietf.org/html/draft-chown-6man-tokenised-ipv6-identifiers-02 The implementation is partially based on top of Mark K. Thompson's proof of concept. However, it uses the Netlink interface for configuration resp. data retrival, so that it can be easily extended in future. Successfully tested by myself. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08 04:01:30 +00:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
net: ipv6: add tokenized interface identifier support This patch adds support for IPv6 tokenized IIDs, that allow for administrators to assign well-known host-part addresses to nodes whilst still obtaining global network prefix from Router Advertisements. It is currently in draft status. The primary target for such support is server platforms where addresses are usually manually configured, rather than using DHCPv6 or SLAAC. By using tokenised identifiers, hosts can still determine their network prefix by use of SLAAC, but more readily be automatically renumbered should their network prefix change. [...] The disadvantage with static addresses is that they are likely to require manual editing should the network prefix in use change. If instead there were a method to only manually configure the static identifier part of the IPv6 address, then the address could be automatically updated when a new prefix was introduced, as described in [RFC4192] for example. In such cases a DNS server might be configured with such a tokenised interface identifier of ::53, and SLAAC would use the token in constructing the interface address, using the advertised prefix. [...] http://tools.ietf.org/html/draft-chown-6man-tokenised-ipv6-identifiers-02 The implementation is partially based on top of Mark K. Thompson's proof of concept. However, it uses the Netlink interface for configuration resp. data retrival, so that it can be easily extended in future. Successfully tested by myself. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08 04:01:30 +00:00
ipv6: addrconf: implement address generation modes This patch introduces a possibility for userspace to set various (so far two) modes of generating addresses. This is useful for example for NetworkManager because it can set the mode to NONE and take care of link local addresses itself. That allow it to have the interface up, monitoring carrier but still don't have any addresses on it. One more use-case by Dan Williams: <quote> WWAN devices often have their LL address provided by the firmware of the device, which sometimes refuses to respond to incorrect LL addresses when doing DHCPv6 or IPv6 ND. The kernel cannot generate the correct LL address for two reasons: 1) WWAN pseudo-ethernet interfaces often construct a fake MAC address, or read a meaningless MAC address from the firmware. Thus the EUI64 and the IPv6LL address the kernel assigns will be wrong. The real LL address is often retrieved from the firmware with AT or proprietary commands. 2) WWAN PPP interfaces receive their LL address from IPV6CP, not from kernel assignments. Only after IPV6CP has completed do we know the LL address of the PPP interface and its peer. But the kernel has already assigned an incorrect LL address to the interface. So being able to suppress the kernel LL address generation and assign the one retrieved from the firmware is less complicated and more robust. </quote> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-11 21:10:18 +02:00
net: ipv6: add tokenized interface identifier support This patch adds support for IPv6 tokenized IIDs, that allow for administrators to assign well-known host-part addresses to nodes whilst still obtaining global network prefix from Router Advertisements. It is currently in draft status. The primary target for such support is server platforms where addresses are usually manually configured, rather than using DHCPv6 or SLAAC. By using tokenised identifiers, hosts can still determine their network prefix by use of SLAAC, but more readily be automatically renumbered should their network prefix change. [...] The disadvantage with static addresses is that they are likely to require manual editing should the network prefix in use change. If instead there were a method to only manually configure the static identifier part of the IPv6 address, then the address could be automatically updated when a new prefix was introduced, as described in [RFC4192] for example. In such cases a DNS server might be configured with such a tokenised interface identifier of ::53, and SLAAC would use the token in constructing the interface address, using the advertised prefix. [...] http://tools.ietf.org/html/draft-chown-6man-tokenised-ipv6-identifiers-02 The implementation is partially based on top of Mark K. Thompson's proof of concept. However, it uses the Netlink interface for configuration resp. data retrival, so that it can be easily extended in future. Successfully tested by myself. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08 04:01:30 +00:00
ipv6: AF_INET6 link address family IPv6 already exposes some address family data via netlink in the IFLA_PROTINFO attribute if RTM_GETLINK request is sent with the address family set to AF_INET6. We take over this format and reuse all the code. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16 04:33:57 +00:00
netlink: Rightsize IFLA_AF_SPEC size calculation if_nlmsg_size() overestimates the minimum allocation size of netlink dump request (when called from rtnl_calcit()) or the size of the message (when called from rtnl_getlink()). This is because ext_filter_mask is not supported by rtnl_link_get_af_size() and rtnl_link_get_size(). The over-estimation is significant when at least one netdev has many VLANs configured (8 bytes for each configured VLAN). This patch-set "rightsizes" the protocol specific attribute size calculation by propagating ext_filter_mask to rtnl_link_get_af_size() and adding this a argument to get_link_af_size op in rtnl_af_ops. Bridge module already used filtering aware sizing for notifications. br_get_link_af_size_filtered() is consistent with the modified get_link_af_size op so it replaces br_get_link_af_size() in br_af_ops. br_get_link_af_size() becomes unused and thus removed. Signed-off-by: Ronen Arad <ronen.arad@intel.com> Acked-by: Sridhar Samudrala <sridhar.samudrala@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-19 09:23:28 -07:00
ipv6: AF_INET6 link address family IPv6 already exposes some address family data via netlink in the IFLA_PROTINFO attribute if RTM_GETLINK request is sent with the address family set to AF_INET6. We take over this format and reuse all the code. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16 04:33:57 +00:00
rtnetlink: RTEXT_FILTER_SKIP_STATS support to avoid dumping inet/inet6 stats Many commonly used functions like getifaddrs() invoke RTM_GETLINK to dump the interface information, and do not need the the AF_INET6 statististics that are always returned by default from rtnl_fill_ifinfo(). Computing the statistics can be an expensive operation that impacts scaling, so it is desirable to avoid this if the information is not needed. This patch adds a the RTEXT_FILTER_SKIP_STATS extended info flag that can be passed with netlink_request() to avoid statistics computation for the ifinfo path. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-11 16:48:48 -04:00
ipv6: AF_INET6 link address family IPv6 already exposes some address family data via netlink in the IFLA_PROTINFO attribute if RTM_GETLINK request is sent with the address family set to AF_INET6. We take over this format and reuse all the code. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16 04:33:57 +00:00
rtnetlink: RTEXT_FILTER_SKIP_STATS support to avoid dumping inet/inet6 stats Many commonly used functions like getifaddrs() invoke RTM_GETLINK to dump the interface information, and do not need the the AF_INET6 statististics that are always returned by default from rtnl_fill_ifinfo(). Computing the statistics can be an expensive operation that impacts scaling, so it is desirable to avoid this if the information is not needed. This patch adds a the RTEXT_FILTER_SKIP_STATS extended info flag that can be passed with netlink_request() to avoid statistics computation for the ifinfo path. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-11 16:48:48 -04:00
ipv6: AF_INET6 link address family IPv6 already exposes some address family data via netlink in the IFLA_PROTINFO attribute if RTM_GETLINK request is sent with the address family set to AF_INET6. We take over this format and reuse all the code. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16 04:33:57 +00:00
net: ipv6: add tokenized interface identifier support This patch adds support for IPv6 tokenized IIDs, that allow for administrators to assign well-known host-part addresses to nodes whilst still obtaining global network prefix from Router Advertisements. It is currently in draft status. The primary target for such support is server platforms where addresses are usually manually configured, rather than using DHCPv6 or SLAAC. By using tokenised identifiers, hosts can still determine their network prefix by use of SLAAC, but more readily be automatically renumbered should their network prefix change. [...] The disadvantage with static addresses is that they are likely to require manual editing should the network prefix in use change. If instead there were a method to only manually configure the static identifier part of the IPv6 address, then the address could be automatically updated when a new prefix was introduced, as described in [RFC4192] for example. In such cases a DNS server might be configured with such a tokenised interface identifier of ::53, and SLAAC would use the token in constructing the interface address, using the advertised prefix. [...] http://tools.ietf.org/html/draft-chown-6man-tokenised-ipv6-identifiers-02 The implementation is partially based on top of Mark K. Thompson's proof of concept. However, it uses the Netlink interface for configuration resp. data retrival, so that it can be easily extended in future. Successfully tested by myself. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08 04:01:30 +00:00
net: ipv6: also allow token to be set when device not ready When we set the iftoken in inet6_set_iftoken(), we return -EINVAL when the device does not have flag IF_READY. This is however not necessary and rather an artificial usability barrier, since we simply can set the token despite that, and in case the device is ready, we just send out our rs, otherwise ifup et al. will do this for us anyway. Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-09 03:47:15 +00:00
ipv6: check return value of ipv6_get_lladdr We should check the return value of ipv6_get_lladdr in inet6_set_iftoken. A possible situation, which could leave ll_addr unassigned is, when the user removed her link-local address but a global scoped address was already set. In this case the interface would still be IF_READY and not dead. In that case the RS source address is some value from the stack. v2: Daniel Borkmann noted a small indent inconstancy; no semantic changes. Cc: Daniel Borkmann <dborkman@redhat.com> Acked-by: Daniel Borkmann <dborkman@redhat.com> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-24 21:42:40 +02:00
net: ipv6: add tokenized interface identifier support This patch adds support for IPv6 tokenized IIDs, that allow for administrators to assign well-known host-part addresses to nodes whilst still obtaining global network prefix from Router Advertisements. It is currently in draft status. The primary target for such support is server platforms where addresses are usually manually configured, rather than using DHCPv6 or SLAAC. By using tokenised identifiers, hosts can still determine their network prefix by use of SLAAC, but more readily be automatically renumbered should their network prefix change. [...] The disadvantage with static addresses is that they are likely to require manual editing should the network prefix in use change. If instead there were a method to only manually configure the static identifier part of the IPv6 address, then the address could be automatically updated when a new prefix was introduced, as described in [RFC4192] for example. In such cases a DNS server might be configured with such a tokenised interface identifier of ::53, and SLAAC would use the token in constructing the interface address, using the advertised prefix. [...] http://tools.ietf.org/html/draft-chown-6man-tokenised-ipv6-identifiers-02 The implementation is partially based on top of Mark K. Thompson's proof of concept. However, it uses the Netlink interface for configuration resp. data retrival, so that it can be easily extended in future. Successfully tested by myself. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08 04:01:30 +00:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
net: ipv6: add tokenized interface identifier support This patch adds support for IPv6 tokenized IIDs, that allow for administrators to assign well-known host-part addresses to nodes whilst still obtaining global network prefix from Router Advertisements. It is currently in draft status. The primary target for such support is server platforms where addresses are usually manually configured, rather than using DHCPv6 or SLAAC. By using tokenised identifiers, hosts can still determine their network prefix by use of SLAAC, but more readily be automatically renumbered should their network prefix change. [...] The disadvantage with static addresses is that they are likely to require manual editing should the network prefix in use change. If instead there were a method to only manually configure the static identifier part of the IPv6 address, then the address could be automatically updated when a new prefix was introduced, as described in [RFC4192] for example. In such cases a DNS server might be configured with such a tokenised interface identifier of ::53, and SLAAC would use the token in constructing the interface address, using the advertised prefix. [...] http://tools.ietf.org/html/draft-chown-6man-tokenised-ipv6-identifiers-02 The implementation is partially based on top of Mark K. Thompson's proof of concept. However, it uses the Netlink interface for configuration resp. data retrival, so that it can be easily extended in future. Successfully tested by myself. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08 04:01:30 +00:00
ipv6: check return value of ipv6_get_lladdr We should check the return value of ipv6_get_lladdr in inet6_set_iftoken. A possible situation, which could leave ll_addr unassigned is, when the user removed her link-local address but a global scoped address was already set. In this case the interface would still be IF_READY and not dead. In that case the RS source address is some value from the stack. v2: Daniel Borkmann noted a small indent inconstancy; no semantic changes. Cc: Daniel Borkmann <dborkman@redhat.com> Acked-by: Daniel Borkmann <dborkman@redhat.com> Reviewed-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-24 21:42:40 +02:00
net: ipv6: also allow token to be set when device not ready When we set the iftoken in inet6_set_iftoken(), we return -EINVAL when the device does not have flag IF_READY. This is however not necessary and rather an artificial usability barrier, since we simply can set the token despite that, and in case the device is ready, we just send out our rs, otherwise ifup et al. will do this for us anyway. Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-09 03:47:15 +00:00
net: ipv6: add tokenized interface identifier support This patch adds support for IPv6 tokenized IIDs, that allow for administrators to assign well-known host-part addresses to nodes whilst still obtaining global network prefix from Router Advertisements. It is currently in draft status. The primary target for such support is server platforms where addresses are usually manually configured, rather than using DHCPv6 or SLAAC. By using tokenised identifiers, hosts can still determine their network prefix by use of SLAAC, but more readily be automatically renumbered should their network prefix change. [...] The disadvantage with static addresses is that they are likely to require manual editing should the network prefix in use change. If instead there were a method to only manually configure the static identifier part of the IPv6 address, then the address could be automatically updated when a new prefix was introduced, as described in [RFC4192] for example. In such cases a DNS server might be configured with such a tokenised interface identifier of ::53, and SLAAC would use the token in constructing the interface address, using the advertised prefix. [...] http://tools.ietf.org/html/draft-chown-6man-tokenised-ipv6-identifiers-02 The implementation is partially based on top of Mark K. Thompson's proof of concept. However, it uses the Netlink interface for configuration resp. data retrival, so that it can be easily extended in future. Successfully tested by myself. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08 04:01:30 +00:00
net: ipv6: also allow token to be set when device not ready When we set the iftoken in inet6_set_iftoken(), we return -EINVAL when the device does not have flag IF_READY. This is however not necessary and rather an artificial usability barrier, since we simply can set the token despite that, and in case the device is ready, we just send out our rs, otherwise ifup et al. will do this for us anyway. Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-09 03:47:15 +00:00
ipv6: rearm router solicitaion timer when setting new tokenized address When a new tokenized address gets installed we send out just one router solicition. We should send out `rtr_solicits' in case one router advertisment got lost. So, rearm the timer as we do in addrconf_dad_complete. Cc: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-26 03:41:49 +02:00
net: ipv6: also allow token to be set when device not ready When we set the iftoken in inet6_set_iftoken(), we return -EINVAL when the device does not have flag IF_READY. This is however not necessary and rather an artificial usability barrier, since we simply can set the token despite that, and in case the device is ready, we just send out our rs, otherwise ifup et al. will do this for us anyway. Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-09 03:47:15 +00:00
ipv6: rearm router solicitaion timer when setting new tokenized address When a new tokenized address gets installed we send out just one router solicition. We should send out `rtr_solicits' in case one router advertisment got lost. So, rearm the timer as we do in addrconf_dad_complete. Cc: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-26 03:41:49 +02:00
net: ipv6: add tokenized interface identifier support This patch adds support for IPv6 tokenized IIDs, that allow for administrators to assign well-known host-part addresses to nodes whilst still obtaining global network prefix from Router Advertisements. It is currently in draft status. The primary target for such support is server platforms where addresses are usually manually configured, rather than using DHCPv6 or SLAAC. By using tokenised identifiers, hosts can still determine their network prefix by use of SLAAC, but more readily be automatically renumbered should their network prefix change. [...] The disadvantage with static addresses is that they are likely to require manual editing should the network prefix in use change. If instead there were a method to only manually configure the static identifier part of the IPv6 address, then the address could be automatically updated when a new prefix was introduced, as described in [RFC4192] for example. In such cases a DNS server might be configured with such a tokenised interface identifier of ::53, and SLAAC would use the token in constructing the interface address, using the advertised prefix. [...] http://tools.ietf.org/html/draft-chown-6man-tokenised-ipv6-identifiers-02 The implementation is partially based on top of Mark K. Thompson's proof of concept. However, it uses the Netlink interface for configuration resp. data retrival, so that it can be easily extended in future. Successfully tested by myself. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08 04:01:30 +00:00
net: ipv6: only invalidate previously tokenized addresses Instead of invalidating all IPv6 addresses with global scope when one decides to use IPv6 tokens, we should only invalidate previous tokens and leave the rest intact until they expire eventually (or are intact forever). For doing this less greedy approach, we're adding a bool at the end of inet6_ifaddr structure instead, for two reasons: i) per-inet6_ifaddr flag space is already used up, making it wider might not be a good idea, since ii) also we do not necessarily need to export this information into user space. Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-09 03:47:16 +00:00
net: ipv6: add tokenized interface identifier support This patch adds support for IPv6 tokenized IIDs, that allow for administrators to assign well-known host-part addresses to nodes whilst still obtaining global network prefix from Router Advertisements. It is currently in draft status. The primary target for such support is server platforms where addresses are usually manually configured, rather than using DHCPv6 or SLAAC. By using tokenised identifiers, hosts can still determine their network prefix by use of SLAAC, but more readily be automatically renumbered should their network prefix change. [...] The disadvantage with static addresses is that they are likely to require manual editing should the network prefix in use change. If instead there were a method to only manually configure the static identifier part of the IPv6 address, then the address could be automatically updated when a new prefix was introduced, as described in [RFC4192] for example. In such cases a DNS server might be configured with such a tokenised interface identifier of ::53, and SLAAC would use the token in constructing the interface address, using the advertised prefix. [...] http://tools.ietf.org/html/draft-chown-6man-tokenised-ipv6-identifiers-02 The implementation is partially based on top of Mark K. Thompson's proof of concept. However, it uses the Netlink interface for configuration resp. data retrival, so that it can be easily extended in future. Successfully tested by myself. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08 04:01:30 +00:00
ipv6: notify userspace when we added or changed an ipv6 token NetworkManager might want to know that it changed when the router advertisement arrives. Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: Daniel Borkmann <dborkman@redhat.com> Acked-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-27 17:39:16 +01:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
net: ipv6: add tokenized interface identifier support This patch adds support for IPv6 tokenized IIDs, that allow for administrators to assign well-known host-part addresses to nodes whilst still obtaining global network prefix from Router Advertisements. It is currently in draft status. The primary target for such support is server platforms where addresses are usually manually configured, rather than using DHCPv6 or SLAAC. By using tokenised identifiers, hosts can still determine their network prefix by use of SLAAC, but more readily be automatically renumbered should their network prefix change. [...] The disadvantage with static addresses is that they are likely to require manual editing should the network prefix in use change. If instead there were a method to only manually configure the static identifier part of the IPv6 address, then the address could be automatically updated when a new prefix was introduced, as described in [RFC4192] for example. In such cases a DNS server might be configured with such a tokenised interface identifier of ::53, and SLAAC would use the token in constructing the interface address, using the advertised prefix. [...] http://tools.ietf.org/html/draft-chown-6man-tokenised-ipv6-identifiers-02 The implementation is partially based on top of Mark K. Thompson's proof of concept. However, it uses the Netlink interface for configuration resp. data retrival, so that it can be easily extended in future. Successfully tested by myself. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08 04:01:30 +00:00
ipv6: addrconf: add missing validate_link_af handler We still need a validate_link_af() handler with an appropriate nla policy, similarly as we have in IPv4 case, otherwise size validations are not being done properly in that case. Fixes: f53adae4eae5 ("net: ipv6: add tokenized interface identifier support") Fixes: bc91b0f07ada ("ipv6: addrconf: implement address generation modes") Cc: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-05 14:39:11 +01:00
net: ipv6: add tokenized interface identifier support This patch adds support for IPv6 tokenized IIDs, that allow for administrators to assign well-known host-part addresses to nodes whilst still obtaining global network prefix from Router Advertisements. It is currently in draft status. The primary target for such support is server platforms where addresses are usually manually configured, rather than using DHCPv6 or SLAAC. By using tokenised identifiers, hosts can still determine their network prefix by use of SLAAC, but more readily be automatically renumbered should their network prefix change. [...] The disadvantage with static addresses is that they are likely to require manual editing should the network prefix in use change. If instead there were a method to only manually configure the static identifier part of the IPv6 address, then the address could be automatically updated when a new prefix was introduced, as described in [RFC4192] for example. In such cases a DNS server might be configured with such a tokenised interface identifier of ::53, and SLAAC would use the token in constructing the interface address, using the advertised prefix. [...] http://tools.ietf.org/html/draft-chown-6man-tokenised-ipv6-identifiers-02 The implementation is partially based on top of Mark K. Thompson's proof of concept. However, it uses the Netlink interface for configuration resp. data retrival, so that it can be easily extended in future. Successfully tested by myself. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08 04:01:30 +00:00
ipv6: addrconf: implement address generation modes This patch introduces a possibility for userspace to set various (so far two) modes of generating addresses. This is useful for example for NetworkManager because it can set the mode to NONE and take care of link local addresses itself. That allow it to have the interface up, monitoring carrier but still don't have any addresses on it. One more use-case by Dan Williams: <quote> WWAN devices often have their LL address provided by the firmware of the device, which sometimes refuses to respond to incorrect LL addresses when doing DHCPv6 or IPv6 ND. The kernel cannot generate the correct LL address for two reasons: 1) WWAN pseudo-ethernet interfaces often construct a fake MAC address, or read a meaningless MAC address from the firmware. Thus the EUI64 and the IPv6LL address the kernel assigns will be wrong. The real LL address is often retrieved from the firmware with AT or proprietary commands. 2) WWAN PPP interfaces receive their LL address from IPV6CP, not from kernel assignments. Only after IPV6CP has completed do we know the LL address of the PPP interface and its peer. But the kernel has already assigned an incorrect LL address to the interface. So being able to suppress the kernel LL address generation and assign the one retrieved from the firmware is less complicated and more robust. </quote> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-11 21:10:18 +02:00
net: ipv6: add tokenized interface identifier support This patch adds support for IPv6 tokenized IIDs, that allow for administrators to assign well-known host-part addresses to nodes whilst still obtaining global network prefix from Router Advertisements. It is currently in draft status. The primary target for such support is server platforms where addresses are usually manually configured, rather than using DHCPv6 or SLAAC. By using tokenised identifiers, hosts can still determine their network prefix by use of SLAAC, but more readily be automatically renumbered should their network prefix change. [...] The disadvantage with static addresses is that they are likely to require manual editing should the network prefix in use change. If instead there were a method to only manually configure the static identifier part of the IPv6 address, then the address could be automatically updated when a new prefix was introduced, as described in [RFC4192] for example. In such cases a DNS server might be configured with such a tokenised interface identifier of ::53, and SLAAC would use the token in constructing the interface address, using the advertised prefix. [...] http://tools.ietf.org/html/draft-chown-6man-tokenised-ipv6-identifiers-02 The implementation is partially based on top of Mark K. Thompson's proof of concept. However, it uses the Netlink interface for configuration resp. data retrival, so that it can be easily extended in future. Successfully tested by myself. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08 04:01:30 +00:00
ipv6: addrconf: implement address generation modes This patch introduces a possibility for userspace to set various (so far two) modes of generating addresses. This is useful for example for NetworkManager because it can set the mode to NONE and take care of link local addresses itself. That allow it to have the interface up, monitoring carrier but still don't have any addresses on it. One more use-case by Dan Williams: <quote> WWAN devices often have their LL address provided by the firmware of the device, which sometimes refuses to respond to incorrect LL addresses when doing DHCPv6 or IPv6 ND. The kernel cannot generate the correct LL address for two reasons: 1) WWAN pseudo-ethernet interfaces often construct a fake MAC address, or read a meaningless MAC address from the firmware. Thus the EUI64 and the IPv6LL address the kernel assigns will be wrong. The real LL address is often retrieved from the firmware with AT or proprietary commands. 2) WWAN PPP interfaces receive their LL address from IPV6CP, not from kernel assignments. Only after IPV6CP has completed do we know the LL address of the PPP interface and its peer. But the kernel has already assigned an incorrect LL address to the interface. So being able to suppress the kernel LL address generation and assign the one retrieved from the firmware is less complicated and more robust. </quote> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-11 21:10:18 +02:00
ipv6: generation of stable privacy addresses for link-local and autoconf This patch implements the stable privacy address generation for link-local and autoconf addresses as specified in RFC7217. RID = F(Prefix, Net_Iface, Network_ID, DAD_Counter, secret_key) is the RID (random identifier). As the hash function F we chose one round of sha1. Prefix will be either the link-local prefix or the router advertised one. As Net_Iface we use the MAC address of the device. DAD_Counter and secret_key are implemented as specified. We don't use Network_ID, as it couples the code too closely to other subsystems. It is specified as optional in the RFC. As Net_Iface we only use the MAC address: we simply have no stable identifier in the kernel we could possibly use: because this code might run very early, we cannot depend on names, as they might be changed by user space early on during the boot process. A new address generation mode is introduced, IN6_ADDR_GEN_MODE_STABLE_PRIVACY. With iproute2 one can switch back to none or eui64 address configuration mode although the stable_secret is already set. We refuse writes to ipv6/conf/all/stable_secret but only allow ipv6/conf/default/stable_secret and the interface specific file to be written to. The default stable_secret is used as the parameter for the namespace, the interface specific can overwrite the secret, e.g. when switching a network configuration from one system to another while inheriting the secret. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:01 +01:00
ipv6: addrconf: implement address generation modes This patch introduces a possibility for userspace to set various (so far two) modes of generating addresses. This is useful for example for NetworkManager because it can set the mode to NONE and take care of link local addresses itself. That allow it to have the interface up, monitoring carrier but still don't have any addresses on it. One more use-case by Dan Williams: <quote> WWAN devices often have their LL address provided by the firmware of the device, which sometimes refuses to respond to incorrect LL addresses when doing DHCPv6 or IPv6 ND. The kernel cannot generate the correct LL address for two reasons: 1) WWAN pseudo-ethernet interfaces often construct a fake MAC address, or read a meaningless MAC address from the firmware. Thus the EUI64 and the IPv6LL address the kernel assigns will be wrong. The real LL address is often retrieved from the firmware with AT or proprietary commands. 2) WWAN PPP interfaces receive their LL address from IPV6CP, not from kernel assignments. Only after IPV6CP has completed do we know the LL address of the PPP interface and its peer. But the kernel has already assigned an incorrect LL address to the interface. So being able to suppress the kernel LL address generation and assign the one retrieved from the firmware is less complicated and more robust. </quote> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-11 21:10:18 +02:00
ipv6: generation of stable privacy addresses for link-local and autoconf This patch implements the stable privacy address generation for link-local and autoconf addresses as specified in RFC7217. RID = F(Prefix, Net_Iface, Network_ID, DAD_Counter, secret_key) is the RID (random identifier). As the hash function F we chose one round of sha1. Prefix will be either the link-local prefix or the router advertised one. As Net_Iface we use the MAC address of the device. DAD_Counter and secret_key are implemented as specified. We don't use Network_ID, as it couples the code too closely to other subsystems. It is specified as optional in the RFC. As Net_Iface we only use the MAC address: we simply have no stable identifier in the kernel we could possibly use: because this code might run very early, we cannot depend on names, as they might be changed by user space early on during the boot process. A new address generation mode is introduced, IN6_ADDR_GEN_MODE_STABLE_PRIVACY. With iproute2 one can switch back to none or eui64 address configuration mode although the stable_secret is already set. We refuse writes to ipv6/conf/all/stable_secret but only allow ipv6/conf/default/stable_secret and the interface specific file to be written to. The default stable_secret is used as the parameter for the namespace, the interface specific can overwrite the secret, e.g. when switching a network configuration from one system to another while inheriting the secret. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:01 +01:00
ipv6: addrconf: implement address generation modes This patch introduces a possibility for userspace to set various (so far two) modes of generating addresses. This is useful for example for NetworkManager because it can set the mode to NONE and take care of link local addresses itself. That allow it to have the interface up, monitoring carrier but still don't have any addresses on it. One more use-case by Dan Williams: <quote> WWAN devices often have their LL address provided by the firmware of the device, which sometimes refuses to respond to incorrect LL addresses when doing DHCPv6 or IPv6 ND. The kernel cannot generate the correct LL address for two reasons: 1) WWAN pseudo-ethernet interfaces often construct a fake MAC address, or read a meaningless MAC address from the firmware. Thus the EUI64 and the IPv6LL address the kernel assigns will be wrong. The real LL address is often retrieved from the firmware with AT or proprietary commands. 2) WWAN PPP interfaces receive their LL address from IPV6CP, not from kernel assignments. Only after IPV6CP has completed do we know the LL address of the PPP interface and its peer. But the kernel has already assigned an incorrect LL address to the interface. So being able to suppress the kernel LL address generation and assign the one retrieved from the firmware is less complicated and more robust. </quote> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-11 21:10:18 +02:00
net: ipv6: add tokenized interface identifier support This patch adds support for IPv6 tokenized IIDs, that allow for administrators to assign well-known host-part addresses to nodes whilst still obtaining global network prefix from Router Advertisements. It is currently in draft status. The primary target for such support is server platforms where addresses are usually manually configured, rather than using DHCPv6 or SLAAC. By using tokenised identifiers, hosts can still determine their network prefix by use of SLAAC, but more readily be automatically renumbered should their network prefix change. [...] The disadvantage with static addresses is that they are likely to require manual editing should the network prefix in use change. If instead there were a method to only manually configure the static identifier part of the IPv6 address, then the address could be automatically updated when a new prefix was introduced, as described in [RFC4192] for example. In such cases a DNS server might be configured with such a tokenised interface identifier of ::53, and SLAAC would use the token in constructing the interface address, using the advertised prefix. [...] http://tools.ietf.org/html/draft-chown-6man-tokenised-ipv6-identifiers-02 The implementation is partially based on top of Mark K. Thompson's proof of concept. However, it uses the Netlink interface for configuration resp. data retrival, so that it can be easily extended in future. Successfully tested by myself. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08 04:01:30 +00:00
ipv6: AF_INET6 link address family IPv6 already exposes some address family data via netlink in the IFLA_PROTINFO attribute if RTM_GETLINK request is sent with the address family set to AF_INET6. We take over this format and reuse all the code. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16 04:33:57 +00:00
netlink: Rename pid to portid to avoid confusion It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07 20:12:54 +00:00
ipv6: AF_INET6 link address family IPv6 already exposes some address family data via netlink in the IFLA_PROTINFO attribute if RTM_GETLINK request is sent with the address family set to AF_INET6. We take over this format and reuse all the code. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16 04:33:57 +00:00
netlink: Rename pid to portid to avoid confusion It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07 20:12:54 +00:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
ipv6: AF_INET6 link address family IPv6 already exposes some address family data via netlink in the IFLA_PROTINFO attribute if RTM_GETLINK request is sent with the address family set to AF_INET6. We take over this format and reuse all the code. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16 04:33:57 +00:00
ipv6: Stop using NLA_PUT*(). These macros contain a hidden goto, and are thus extremely error prone and make code hard to audit. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-01 20:27:33 -04:00
dev: introduce dev_get_iflink() The goal of this patch is to prepare the removal of the iflink field. It introduces a new ndo function, which will be implemented by virtual interfaces. There is no functional change into this patch. All readers of iflink field now call dev_get_iflink(). Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-02 17:07:00 +02:00
net: addr IFLA_OPERSTATE to netlink message for ipv6 ifinfo This is useful information to include in ipv6 netlink messages that report interface information. IFLA_OPERSTATE is already included in ipv4 messages, but missing for ipv6. This closes that gap. Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-13 15:26:35 -04:00
ipv6: Stop using NLA_PUT*(). These macros contain a hidden goto, and are thus extremely error prone and make code hard to audit. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-01 20:27:33 -04:00
ipv6: AF_INET6 link address family IPv6 already exposes some address family data via netlink in the IFLA_PROTINFO attribute if RTM_GETLINK request is sent with the address family set to AF_INET6. We take over this format and reuse all the code. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16 04:33:57 +00:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
ipv6: AF_INET6 link address family IPv6 already exposes some address family data via netlink in the IFLA_PROTINFO attribute if RTM_GETLINK request is sent with the address family set to AF_INET6. We take over this format and reuse all the code. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16 04:33:57 +00:00
rtnetlink: RTEXT_FILTER_SKIP_STATS support to avoid dumping inet/inet6 stats Many commonly used functions like getifaddrs() invoke RTM_GETLINK to dump the interface information, and do not need the the AF_INET6 statististics that are always returned by default from rtnl_fill_ifinfo(). Computing the statistics can be an expensive operation that impacts scaling, so it is desirable to avoid this if the information is not needed. This patch adds a the RTEXT_FILTER_SKIP_STATS extended info flag that can be passed with netlink_request() to avoid statistics computation for the ifinfo path. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-11 16:48:48 -04:00
ipv6: AF_INET6 link address family IPv6 already exposes some address family data via netlink in the IFLA_PROTINFO attribute if RTM_GETLINK request is sent with the address family set to AF_INET6. We take over this format and reuse all the code. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16 04:33:57 +00:00
[IPv6] iflink: Convert IPv6's RTM_GETLINK to use the new netlink api By replacing the current method of exporting the device configuration which included allocating a temporary buffer, copying ipv6_devconf into it and copying that buffer into the message with a method that uses nla_reserve() allowing to copy the device configuration directly into the skb data buffer, a GFP_ATOMIC allocation could be removed. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-14 19:53:58 -08:00
netlink: make nlmsg_end() and genlmsg_end() void Contrary to common expectations for an "int" return, these functions return only a positive value -- if used correctly they cannot even return 0 because the message header will necessarily be in the skb. This makes the very common pattern of if (genlmsg_end(...) < 0) { ... } be a whole bunch of dead code. Many places also simply do return nlmsg_end(...); and the caller is expected to deal with it. This also commonly (at least for me) causes errors, because it is very common to write if (my_function(...)) /* error condition */ and if my_function() does "return nlmsg_end()" this is of course wrong. Additionally, there's not a single place in the kernel that actually needs the message length returned, and if anyone needs it later then it'll be very easy to just use skb->len there. Remove this, and make the functions void. This removes a bunch of dead code as described above. The patch adds lines because I did - return nlmsg_end(...); + nlmsg_end(...); + return 0; I could have preserved all the function's return values by returning skb->len, but instead I've audited all the places calling the affected functions and found that none cared. A few places actually compared the return value with <= 0 in dump functionality, but that could just be changed to < 0 with no change in behaviour, so I opted for the more efficient version. One instance of the error I've made numerous times now is also present in net/phonet/pn_netlink.c in the route_dumpit() function - it didn't check for <0 or <=0 and thus broke out of the loop every single time. I've preserved this since it will (I think) have caused the messages to userspace to be formatted differently with just a single message for every SKB returned to userspace. It's possible that this isn't needed for the tools that actually use this, but I don't even know what they are so couldn't test that changing this behaviour would be acceptable. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-16 22:09:00 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPv6] iflink: Convert IPv6's RTM_GETLINK to use the new netlink api By replacing the current method of exporting the device configuration which included allocating a temporary buffer, copying ipv6_devconf into it and copying that buffer into the message with a method that uses nla_reserve() allowing to copy the device configuration directly into the skb data buffer, a GFP_ATOMIC allocation could be removed. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-14 19:53:58 -08:00
[NETLINK]: Don't BUG on undersized allocations Currently netlink users BUG when the allocated skb for an event notification is undersized. While this is certainly a kernel bug, its not critical and crashing the kernel is too drastic, especially when considering that these errors have appeared multiple times in the past and it BUGs even if no listeners are present. This patch replaces BUG by WARN_ON and changes the notification functions to inform potential listeners of undersized allocations using a unique error code (EMSGSIZE). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-31 23:16:40 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS. Introduce per-sock inlines: sock_net(), sock_net_set() and per-inet_timewait_sock inlines: twsk_net(), twsk_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-26 02:26:21 +09:00
ipv6: speedup inet6_dump_ifinfo() When handling large number of netdevice, inet6_dump_ifinfo() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the 256 sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-09 12:11:28 +00:00
ipv6: Remove unused var in inet6_dump_ifinfo() Reported by Stephen Rothwell: -------------------- Today's linux-next build (x86_64 allmodconfig) produced this warning: net/ipv6/addrconf.c: In function 'inet6_dump_ifinfo': net/ipv6/addrconf.c:3833: warning: unused variable 'err' Introduced by commit 84d2697d9649339215675551eae28ba04068dea1 ("ipv6: speedup inet6_dump_ifinfo()"). -------------------- Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-11 18:53:00 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: speedup inet6_dump_ifinfo() When handling large number of netdevice, inet6_dump_ifinfo() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the 256 sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-09 12:11:28 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: speedup inet6_dump_ifinfo() When handling large number of netdevice, inet6_dump_ifinfo() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the 256 sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-09 12:11:28 +00:00
hlist: drop the node parameter from iterators I'm not sure why, but the hlist for each entry iterators were conceived list_for_each_entry(pos, head, member) The hlist ones were greedy and wanted an extra parameter: hlist_for_each_entry(tpos, pos, head, member) Why did they need an extra pos parameter? I'm not quite sure. Not only they don't really need it, it also prevents the iterator from looking exactly like the list iterator, which is unfortunate. Besides the semantic patch, there was some manual work required: - Fix up the actual hlist iterators in linux/list.h - Fix up the declaration of other iterators based on the hlist ones. - A very small amount of places were using the 'node' parameter, this was modified to use 'obj->member' instead. - Coccinelle didn't handle the hlist_for_each_entry_safe iterator properly, so those had to be fixed up manually. The semantic patch which is mostly the work of Peter Senna Tschudin is here: @@ iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host; type T; expression a,c,d,e; identifier b; statement S; @@ -T b; <+... when != b ( hlist_for_each_entry(a, - b, c, d) S | hlist_for_each_entry_continue(a, - b, c) S | hlist_for_each_entry_from(a, - b, c) S | hlist_for_each_entry_rcu(a, - b, c, d) S | hlist_for_each_entry_rcu_bh(a, - b, c, d) S | hlist_for_each_entry_continue_rcu_bh(a, - b, c) S | for_each_busy_worker(a, c, - b, d) S | ax25_uid_for_each(a, - b, c) S | ax25_for_each(a, - b, c) S | inet_bind_bucket_for_each(a, - b, c) S | sctp_for_each_hentry(a, - b, c) S | sk_for_each(a, - b, c) S | sk_for_each_rcu(a, - b, c) S | sk_for_each_from -(a, b) +(a) S + sk_for_each_from(a) S | sk_for_each_safe(a, - b, c, d) S | sk_for_each_bound(a, - b, c) S | hlist_for_each_entry_safe(a, - b, c, d, e) S | hlist_for_each_entry_continue_rcu(a, - b, c) S | nr_neigh_for_each(a, - b, c) S | nr_neigh_for_each_safe(a, - b, c, d) S | nr_node_for_each(a, - b, c) S | nr_node_for_each_safe(a, - b, c, d) S | - for_each_gfn_sp(a, c, d, b) S + for_each_gfn_sp(a, c, d) S | - for_each_gfn_indirect_valid_sp(a, c, d, b) S + for_each_gfn_indirect_valid_sp(a, c, d) S | for_each_host(a, - b, c) S | for_each_host_safe(a, - b, c, d) S | for_each_mesh_entry(a, - b, c, d) S ) ...+> [akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c] [akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c] [akpm@linux-foundation.org: checkpatch fixes] [akpm@linux-foundation.org: fix warnings] [akpm@linux-foudnation.org: redo intrusive kvm changes] Tested-by: Peter Senna Tschudin <peter.senna@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Gleb Natapov <gleb@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-27 17:06:00 -08:00
ipv6: speedup inet6_dump_ifinfo() When handling large number of netdevice, inet6_dump_ifinfo() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the 256 sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-09 12:11:28 +00:00
netlink: Rename pid to portid to avoid confusion It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07 20:12:54 +00:00
ipv6: speedup inet6_dump_ifinfo() When handling large number of netdevice, inet6_dump_ifinfo() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the 256 sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-09 12:11:28 +00:00
netlink: make nlmsg_end() and genlmsg_end() void Contrary to common expectations for an "int" return, these functions return only a positive value -- if used correctly they cannot even return 0 because the message header will necessarily be in the skb. This makes the very common pattern of if (genlmsg_end(...) < 0) { ... } be a whole bunch of dead code. Many places also simply do return nlmsg_end(...); and the caller is expected to deal with it. This also commonly (at least for me) causes errors, because it is very common to write if (my_function(...)) /* error condition */ and if my_function() does "return nlmsg_end()" this is of course wrong. Additionally, there's not a single place in the kernel that actually needs the message length returned, and if anyone needs it later then it'll be very easy to just use skb->len there. Remove this, and make the functions void. This removes a bunch of dead code as described above. The patch adds lines because I did - return nlmsg_end(...); + nlmsg_end(...); + return 0; I could have preserved all the function's return values by returning skb->len, but instead I've audited all the places calling the affected functions and found that none cared. A few places actually compared the return value with <= 0 in dump functionality, but that could just be changed to < 0 with no change in behaviour, so I opted for the more efficient version. One instance of the error I've made numerous times now is also present in net/phonet/pn_netlink.c in the route_dumpit() function - it didn't check for <0 or <=0 and thus broke out of the loop every single time. I've preserved this since it will (I think) have caused the messages to userspace to be formatted differently with just a single message for every SKB returned to userspace. It's possible that this isn't needed for the tools that actually use this, but I don't even know what they are so couldn't test that changing this behaviour would be acceptable. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-16 22:09:00 +01:00
ipv6: speedup inet6_dump_ifinfo() When handling large number of netdevice, inet6_dump_ifinfo() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the 256 sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-09 12:11:28 +00:00
[NET]: Rework dev_base via list_head (v3) Cleanup of dev_base list use, with the aim to simplify making device list per-namespace. In almost every occasion, use of dev_base variable and dev->next pointer could be easily replaced by for_each_netdev loop. A few most complicated places were converted to using first_netdev()/next_netdev(). Signed-off-by: Pavel Emelianov <xemul@openvz.org> Acked-by: Kirill Korotaev <dev@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-03 15:13:45 -07:00
ipv6: speedup inet6_dump_ifinfo() When handling large number of netdevice, inet6_dump_ifinfo() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the 256 sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-09 12:11:28 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: speedup inet6_dump_ifinfo() When handling large number of netdevice, inet6_dump_ifinfo() is very slow because it has O(N^2) complexity. Instead of scanning one single list, we can use the 256 sub lists of the dev_index hash table, and RCU lookups. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-09 12:11:28 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS. Introduce per-net_device inlines: dev_net(), dev_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25 21:47:49 +09:00
[IPv6] link: Convert link notifications to use rtnl_notify() Fixes a wrong use of current->pid as netlink pid. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-15 00:35:47 -07:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
[NETLINK]: Do precise netlink message allocations where possible Account for the netlink message header size directly in nlmsg_new() instead of relying on the caller calculate it correctly. Replaces error handling of message construction functions when constructing notifications with bug traps since a failure implies a bug in calculating the size of the skb. Signed-off-by: Thomas Graf <tgraf@suug.ch> Acked-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-10 14:10:15 -08:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
[IPv6] link: Convert link notifications to use rtnl_notify() Fixes a wrong use of current->pid as netlink pid. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-15 00:35:47 -07:00
[NETLINK]: Don't BUG on undersized allocations Currently netlink users BUG when the allocated skb for an event notification is undersized. While this is certainly a kernel bug, its not critical and crashing the kernel is too drastic, especially when considering that these errors have appeared multiple times in the past and it BUGs even if no listeners are present. This patch replaces BUG by WARN_ON and changes the notification functions to inform potential listeners of undersized allocations using a unique error code (EMSGSIZE). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-31 23:16:40 -08:00
ipv6: fix nl group when advertising a new link New idev are advertised with NL group RTNLGRP_IPV6_IFADDR, but should use RTNLGRP_IPV6_IFINFO. Bug was introduced by commit 8d7a76c9. Signed-off-by: Wang Xuefu <xuefu.wang@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Acked-by: Thomas Graf <tgraf@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-07 23:38:31 +00:00
netlink: change nlmsg_notify() return value logic This patch changes the return value of nlmsg_notify() as follows: If NETLINK_BROADCAST_ERROR is set by any of the listeners and an error in the delivery happened, return the broadcast error; else if there are no listeners apart from the socket that requested a change with the echo flag, return the result of the unicast notification. Thus, with this patch, the unicast notification is handled in the same way of a broadcast listener that has set the NETLINK_BROADCAST_ERROR socket flag. This patch is useful in case that the caller of nlmsg_notify() wants to know the result of the delivery of a netlink notification (including the broadcast delivery) and take any action in case that the delivery failed. For example, ctnetlink can drop packets if the event delivery failed to provide reliable logging and state-synchronization at the cost of dropping packets. This patch also modifies the rtnetlink code to ignore the return value of rtnl_notify() in all callers. The function rtnl_notify() (before this patch) returned the error of the unicast notification which makes rtnl_set_sk_err() reports errors to all listeners. This is not of any help since the origin of the change (the socket that requested the echoing) notices the ENOBUFS error if the notification fails and should resync itself. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-24 23:18:28 -08:00
[IPv6] link: Convert link notifications to use rtnl_notify() Fixes a wrong use of current->pid as netlink pid. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-15 00:35:47 -07:00
ipv6: fix nl group when advertising a new link New idev are advertised with NL group RTNLGRP_IPV6_IFADDR, but should use RTNLGRP_IPV6_IFINFO. Bug was introduced by commit 8d7a76c9. Signed-off-by: Wang Xuefu <xuefu.wang@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Acked-by: Thomas Graf <tgraf@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-07 23:38:31 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETLINK]: Do precise netlink message allocations where possible Account for the netlink message header size directly in nlmsg_new() instead of relying on the caller calculate it correctly. Replaces error handling of message construction functions when constructing notifications with bug traps since a failure implies a bug in calculating the size of the skb. Signed-off-by: Thomas Graf <tgraf@suug.ch> Acked-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-10 14:10:15 -08:00
[IPV6]: Sum real space for RTAs. This patch fixes RTNLGRP_IPV6_IFINFO netlink notifications. Issue pointed out by Patrick McHardy <kaber@trash.net>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-17 22:48:48 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
netlink: Rename pid to portid to avoid confusion It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07 20:12:54 +00:00
[IPv6] prefix: Convert RTM_NEWPREFIX notifications to use the new netlink api RTM_GETPREFIX is completely unused and is thus removed. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-14 19:54:19 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPv6] prefix: Convert RTM_NEWPREFIX notifications to use the new netlink api RTM_GETPREFIX is completely unused and is thus removed. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-14 19:54:19 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
netlink: Rename pid to portid to avoid confusion It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07 20:12:54 +00:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
[NETLINK]: Don't BUG on undersized allocations Currently netlink users BUG when the allocated skb for an event notification is undersized. While this is certainly a kernel bug, its not critical and crashing the kernel is too drastic, especially when considering that these errors have appeared multiple times in the past and it BUGs even if no listeners are present. This patch replaces BUG by WARN_ON and changes the notification functions to inform potential listeners of undersized allocations using a unique error code (EMSGSIZE). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-31 23:16:40 -08:00
[IPv6] prefix: Convert RTM_NEWPREFIX notifications to use the new netlink api RTM_GETPREFIX is completely unused and is thus removed. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-14 19:54:19 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETLINK]: Missing padding fields in dumped structures Plug holes with padding fields and initialized them to zero. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-06-28 12:56:45 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETLINK]: Missing padding fields in dumped structures Plug holes with padding fields and initialized them to zero. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-06-28 12:56:45 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Stop using NLA_PUT*(). These macros contain a hidden goto, and are thus extremely error prone and make code hard to audit. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-01 20:27:33 -04:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: Stop using NLA_PUT*(). These macros contain a hidden goto, and are thus extremely error prone and make code hard to audit. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-01 20:27:33 -04:00
netlink: make nlmsg_end() and genlmsg_end() void Contrary to common expectations for an "int" return, these functions return only a positive value -- if used correctly they cannot even return 0 because the message header will necessarily be in the skb. This makes the very common pattern of if (genlmsg_end(...) < 0) { ... } be a whole bunch of dead code. Many places also simply do return nlmsg_end(...); and the caller is expected to deal with it. This also commonly (at least for me) causes errors, because it is very common to write if (my_function(...)) /* error condition */ and if my_function() does "return nlmsg_end()" this is of course wrong. Additionally, there's not a single place in the kernel that actually needs the message length returned, and if anyone needs it later then it'll be very easy to just use skb->len there. Remove this, and make the functions void. This removes a bunch of dead code as described above. The patch adds lines because I did - return nlmsg_end(...); + nlmsg_end(...); + return 0; I could have preserved all the function's return values by returning skb->len, but instead I've audited all the places calling the affected functions and found that none cared. A few places actually compared the return value with <= 0 in dump functionality, but that could just be changed to < 0 with no change in behaviour, so I opted for the more efficient version. One instance of the error I've made numerous times now is also present in net/phonet/pn_netlink.c in the route_dumpit() function - it didn't check for <0 or <=0 and thus broke out of the loop every single time. I've preserved this since it will (I think) have caused the messages to userspace to be formatted differently with just a single message for every SKB returned to userspace. It's possible that this isn't needed for the tools that actually use this, but I don't even know what they are so couldn't test that changing this behaviour would be acceptable. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-16 22:09:00 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPv6] prefix: Convert RTM_NEWPREFIX notifications to use the new netlink api RTM_GETPREFIX is completely unused and is thus removed. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-14 19:54:19 -08:00
[NETLINK]: Don't BUG on undersized allocations Currently netlink users BUG when the allocated skb for an event notification is undersized. While this is certainly a kernel bug, its not critical and crashing the kernel is too drastic, especially when considering that these errors have appeared multiple times in the past and it BUGs even if no listeners are present. This patch replaces BUG by WARN_ON and changes the notification functions to inform potential listeners of undersized allocations using a unique error code (EMSGSIZE). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-31 23:16:40 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS. Introduce per-net_device inlines: dev_net(), dev_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25 21:47:49 +09:00
[IPv6] prefix: Convert prefix notifications to use rtnl_notify() Fixes a wrong use of current->pid as netlink pid. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-15 00:36:07 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETLINK]: Do precise netlink message allocations where possible Account for the netlink message header size directly in nlmsg_new() instead of relying on the caller calculate it correctly. Replaces error handling of message construction functions when constructing notifications with bug traps since a failure implies a bug in calculating the size of the skb. Signed-off-by: Thomas Graf <tgraf@suug.ch> Acked-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-11-10 14:10:15 -08:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
[IPv6] prefix: Convert prefix notifications to use rtnl_notify() Fixes a wrong use of current->pid as netlink pid. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-15 00:36:07 -07:00
[NETLINK]: Don't BUG on undersized allocations Currently netlink users BUG when the allocated skb for an event notification is undersized. While this is certainly a kernel bug, its not critical and crashing the kernel is too drastic, especially when considering that these errors have appeared multiple times in the past and it BUGs even if no listeners are present. This patch replaces BUG by WARN_ON and changes the notification functions to inform potential listeners of undersized allocations using a unique error code (EMSGSIZE). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-31 23:16:40 -08:00
netlink: change nlmsg_notify() return value logic This patch changes the return value of nlmsg_notify() as follows: If NETLINK_BROADCAST_ERROR is set by any of the listeners and an error in the delivery happened, return the broadcast error; else if there are no listeners apart from the socket that requested a change with the echo flag, return the result of the unicast notification. Thus, with this patch, the unicast notification is handled in the same way of a broadcast listener that has set the NETLINK_BROADCAST_ERROR socket flag. This patch is useful in case that the caller of nlmsg_notify() wants to know the result of the delivery of a netlink notification (including the broadcast delivery) and take any action in case that the delivery failed. For example, ctnetlink can drop packets if the event delivery failed to provide reliable logging and state-synchronization at the cost of dropping packets. This patch also modifies the rtnetlink code to ignore the return value of rtnl_notify() in all callers. The function rtnl_notify() (before this patch) returned the error of the unicast notification which makes rtnl_set_sk_err() reports errors to all listeners. This is not of any help since the origin of the change (the socket that requested the echoing) notices the ENOBUFS error if the notification fails and should resync itself. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-24 23:18:28 -08:00
[IPv6] prefix: Convert prefix notifications to use rtnl_notify() Fixes a wrong use of current->pid as netlink pid. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-15 00:36:07 -07:00
[NETNS][IPV6] addrconf - make addrconf per namespace All the infrastructure to propagate the network namespace information is ready. Make use of it. There is a special case here between the initial network namespace and the other namespaces: * When ipv6 is initialized at boot time (aka in the init_net), it registers to the notifier callback. So addrconf_notify will be called as many time as there are network devices setup on the system and the function will add ipv6 addresses to the network devices. But the first device which needs to have its ipv6 address setup is the loopback, unfortunatly this is not the case. So the loopback address is setup manually in the ipv6 init function. * With the network namespace, this ordering problem does not appears because notifier is already setup and active, so as soon as we register the loopback the ipv6 address is setup and it will be the first device. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-05 10:47:47 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: provide addr and netconf dump consistency info This patch adds a dev_addr_genid for IPv6. The goal is to use it, combined with dev_base_seq to check if a change occurs during a netlink dump. If a change is detected, the flag NLM_F_DUMP_INTR is set in the first message after the dump was interrupted. Note that only dump of unicast addresses is checked (multicast and anycast are not checked). Reported-by: Junwei Zhang <junwei.zhang@6wind.com> Reported-by: Hongjun Li <hongjun.li@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-22 06:28:43 +00:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: use ipv6_addr_any() helper ipv6_addr_any() is a faster way to determine if an addr is ipv6 any addr, no need to compute the addr type. Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-22 05:41:06 +00:00
ipv6: add support of peer address This patch adds the support of peer address for IPv6. For example, it is possible to specify the remote end of a 6inY tunnel. This was already possible in IPv4: ip addr add ip1 peer ip2 dev dev1 The peer address is specified with IFA_ADDRESS and the local address with IFA_LOCAL (like explained in include/uapi/linux/if_addr.h). Note that the API is not changed, because before this patch, it was not possible to specify two different addresses in IFA_LOCAL and IFA_REMOTE. There is a small change for the dump: if the peer is different from ::, IFA_ADDRESS will contain the peer address instead of the local address. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-16 22:32:00 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: use ipv6_addr_any() helper ipv6_addr_any() is a faster way to determine if an addr is ipv6 any addr, no need to compute the addr type. Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-22 05:41:06 +00:00
ipv6: add support of peer address This patch adds the support of peer address for IPv6. For example, it is possible to specify the remote end of a 6inY tunnel. This was already possible in IPv4: ip addr add ip1 peer ip2 dev dev1 The peer address is specified with IFA_ADDRESS and the local address with IFA_LOCAL (like explained in include/uapi/linux/if_addr.h). Note that the API is not changed, because before this patch, it was not possible to specify two different addresses in IFA_LOCAL and IFA_REMOTE. There is a small change for the dump: if the peer is different from ::, IFA_ADDRESS will contain the peer address instead of the local address. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-16 22:32:00 +00:00
ipv6: use addrconf_get_prefix_route() to remove peer addr addrconf_get_prefix_route() ensures to get the right route in the right table. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-03 23:59:22 +02:00
ipv6: Avoid double dst_free It is a prep work to get dst freeing from fib tree undergo a rcu grace period. The following is a common paradigm: if (ip6_del_rt(rt)) dst_free(rt) which means, if rt cannot be deleted from the fib tree, dst_free(rt) now. 1. We don't know the ip6_del_rt(rt) failure is because it was not managed by fib tree (e.g. DST_NOCACHE) or it had already been removed from the fib tree. 2. If rt had been managed by the fib tree, ip6_del_rt(rt) failure means dst_free(rt) has been called already. A second dst_free(rt) is not always obviously safe. The rt may have been destroyed already. 3. If rt is a DST_NOCACHE, dst_free(rt) should not be called. 4. It is a stopper to make dst freeing from fib tree undergo a rcu grace period. This patch is to use a DST_NOCACHE flag to indicate a rt is not managed by the fib tree. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-15 14:30:08 -07:00
ipv6: add support of peer address This patch adds the support of peer address for IPv6. For example, it is possible to specify the remote end of a 6inY tunnel. This was already possible in IPv4: ip addr add ip1 peer ip2 dev dev1 The peer address is specified with IFA_ADDRESS and the local address with IFA_LOCAL (like explained in include/uapi/linux/if_addr.h). Note that the API is not changed, because before this patch, it was not possible to specify two different addresses in IFA_LOCAL and IFA_REMOTE. There is a small change for the dump: if the peer is different from ::, IFA_ADDRESS will contain the peer address instead of the local address. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-16 22:32:00 +00:00
net-next: remove useless union keyword remove useless union keyword in rtable, rt6_info and dn_route. Since there is only one member in a union, the union keyword isn't useful. Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-10 23:31:35 -07:00
IPv6: keep route for tentative address Recent changes preserve IPv6 address when link goes down (good). But would cause address to point to dead dst entry (bad). The simplest fix is to just not delete route if address is being held for later use. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-12 05:41:31 +00:00
ipv6: Avoid double dst_free It is a prep work to get dst freeing from fib tree undergo a rcu grace period. The following is a common paradigm: if (ip6_del_rt(rt)) dst_free(rt) which means, if rt cannot be deleted from the fib tree, dst_free(rt) now. 1. We don't know the ip6_del_rt(rt) failure is because it was not managed by fib tree (e.g. DST_NOCACHE) or it had already been removed from the fib tree. 2. If rt had been managed by the fib tree, ip6_del_rt(rt) failure means dst_free(rt) has been called already. A second dst_free(rt) is not always obviously safe. The rt may have been destroyed already. 3. If rt is a DST_NOCACHE, dst_free(rt) should not be called. 4. It is a stopper to make dst freeing from fib tree undergo a rcu grace period. This patch is to use a DST_NOCACHE flag to indicate a rt is not managed by the fib tree. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-15 14:30:08 -07:00
ipv6: remove rt6i_genid Eric Dumazet noticed that all no-nonexthop or no-gateway routes which are already marked DST_HOST (e.g. input routes routes) will always be invalidated during sk_dst_check. Thus per-socket dst caching absolutely had no effect and early demuxing had no effect. Thus this patch removes rt6i_genid: fn_sernum already gets modified during add operations, so we only must ensure we mutate fn_sernum during ipv6 address remove operations. This is a fairly cost extensive operations, but address removal should not happen that often. Also our mtu update functions do the same and we heard no complains so far. xfrm policy changes also cause a call into fib6_flush_trees. Also plug a hole in rt6_info (no cacheline changes). I verified via tracing that this change has effect. Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: YOSHIFUJI Hideaki <hideaki@yoshifuji.org> Cc: Vlad Yasevich <vyasevich@gmail.com> Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com> Cc: Martin Lau <kafai@fb.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-28 00:46:06 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: provide addr and netconf dump consistency info This patch adds a dev_addr_genid for IPv6. The goal is to use it, combined with dev_base_seq to check if a change occurs during a netlink dump. If a change is detected, the flag NLM_F_DUMP_INTR is set in the first message after the dump was interrupted. Note that only dump of unicast addresses is checked (multicast and anycast are not checked). Reported-by: Junwei Zhang <junwei.zhang@6wind.com> Reported-by: Hongjun Li <hongjun.li@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-22 06:28:43 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Convert addrconf_lock to RCU. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:44:24 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6] ADDRCONF: Convert addrconf_lock to RCU. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:44:24 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: Convert uses of typedef ctl_table to struct ctl_table Reduce the uses of this unnecessary typedef. Done via perl script: $ git grep --name-only -w ctl_table net | \ xargs perl -p -i -e '\ sub trim { my ($local) = @_; $local =~ s/(^\s+|\s+$)//g; return $local; } \ s/\b(?<!struct\s)ctl_table\b(\s*\*\s*|\s+\w+)/"struct ctl_table " . trim($1)/ge' Reflow the modified lines that now exceed 80 columns. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-11 23:04:25 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: Fix sysctl restarts... Yuck. It turns out that when we restart sysctls we were restarting with the values already changed. Which unfortunately meant that the second time through we thought there was no change and skipped all kinds of work, despite the fact that there was indeed a change. I have fixed this the simplest way possible by restoring the changed values when we restart the sysctl write. One of my coworkers spotted this bug when after disabling forwarding on an interface pings were still forwarded. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-19 13:22:59 +00:00
net: Convert uses of typedef ctl_table to struct ctl_table Reduce the uses of this unnecessary typedef. Done via perl script: $ git grep --name-only -w ctl_table net | \ xargs perl -p -i -e '\ sub trim { my ($local) = @_; $local =~ s/(^\s+|\s+$)//g; return $local; } \ s/\b(?<!struct\s)ctl_table\b(\s*\*\s*|\s+\w+)/"struct ctl_table " . trim($1)/ge' Reflow the modified lines that now exceed 80 columns. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-11 23:04:25 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: race condition in ipv6 forwarding and disable_ipv6 parameters There is a race condition in addrconf_sysctl_forward() and addrconf_sysctl_disable(). These functions change idev->cnf.forwarding (resp. idev->cnf.disable_ipv6) and then try to grab the rtnl lock before performing any actions. If that fails they restore the original value and restart the syscall. This creates race conditions if ipv6 code tries to access these parameters, or if multiple instances try to do the same operation. As an example of the former, if __ipv6_ifa_notify() finds a 0 in idev->cnf.forwarding when invoked by addrconf_ifdown() it may not free anycast addresses, ultimately resulting in the net_device not being freed. This patch reads the user parameters into a temporary location and only writes the actual parameters when the rtnl lock is acquired. Tested in 2.6.38.8. Signed-off-by: Francesco Ruggeri <fruggeri@aristanetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-16 10:40:10 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Eliminate difference in actions of sysctl and proc handler for conf.all.forwarding The only difference in this case is that updating all.forwarding causes the update in default.forwarding when done via proc, but not via the system call. Besides, this consolidates a good portion of code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-05 01:50:24 -08:00
ipv6: Fix sysctl unregistration deadlock Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-26 06:55:31 +00:00
net: Fix sysctl restarts... Yuck. It turns out that when we restart sysctls we were restarting with the values already changed. Which unfortunately meant that the second time through we thought there was no change and skipped all kinds of work, despite the fact that there was indeed a change. I have fixed this the simplest way possible by restoring the changed values when we restart the sysctl write. One of my coworkers spotted this bug when after disabling forwarding on an interface pings were still forwarded. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-19 13:22:59 +00:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: addrconf: validate new MTU before applying it Currently we don't check if the new MTU is valid or not and this allows one to configure a smaller than minimum allowed by RFCs or even bigger than interface own MTU, which is a problem as it may lead to packet drops. If you have a daemon like NetworkManager running, this may be exploited by remote attackers by forging RA packets with an invalid MTU, possibly leading to a DoS. (NetworkManager currently only validates for values too small, but not for too big ones.) The fix is just to make sure the new value is valid. That is, between IPV6_MIN_MTU and interface's MTU. Note that similar check is already performed at ndisc_router_discovery(), for when kernel itself parses the RA. Signed-off-by: Marcelo Ricardo Leitner <mleitner@redhat.com> Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-23 11:17:13 -03:00
IPv6: Add 'autoconf' and 'disable_ipv6' module parameters Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module. The first controls if IPv6 addresses are autoconfigured from prefixes received in Router Advertisements. The IPv6 loopback (::1) and link-local addresses are still configured. The second controls if IPv6 addresses are desired at all. No IPv6 addresses will be added to any interfaces. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-01 03:07:33 -07:00
net: always pass struct netdev_notifier_info to netdevice notifiers commit 351638e7deeed2ec8ce451b53d3 (net: pass info struct via netdevice notifier) breaks booting of my KVM guest, this is due to we still forget to pass struct netdev_notifier_info in several places. This patch completes it. Cc: Jiri Pirko <jiri@resnulli.us> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-29 11:30:50 +08:00
IPv6: Add 'autoconf' and 'disable_ipv6' module parameters Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module. The first controls if IPv6 addresses are autoconfigured from prefixes received in Router Advertisements. The IPv6 loopback (::1) and link-local addresses are still configured. The second controls if IPv6 addresses are desired at all. No IPv6 addresses will be added to any interfaces. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-01 03:07:33 -07:00
net: always pass struct netdev_notifier_info to netdevice notifiers commit 351638e7deeed2ec8ce451b53d3 (net: pass info struct via netdevice notifier) breaks booting of my KVM guest, this is due to we still forget to pass struct netdev_notifier_info in several places. This patch completes it. Cc: Jiri Pirko <jiri@resnulli.us> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-29 11:30:50 +08:00
IPv6: Add 'autoconf' and 'disable_ipv6' module parameters Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module. The first controls if IPv6 addresses are autoconfigured from prefixes received in Router Advertisements. The IPv6 loopback (::1) and link-local addresses are still configured. The second controls if IPv6 addresses are desired at all. No IPv6 addresses will be added to any interfaces. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-01 03:07:33 -07:00
net: always pass struct netdev_notifier_info to netdevice notifiers commit 351638e7deeed2ec8ce451b53d3 (net: pass info struct via netdevice notifier) breaks booting of my KVM guest, this is due to we still forget to pass struct netdev_notifier_info in several places. This patch completes it. Cc: Jiri Pirko <jiri@resnulli.us> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-29 11:30:50 +08:00
IPv6: Add 'autoconf' and 'disable_ipv6' module parameters Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module. The first controls if IPv6 addresses are autoconfigured from prefixes received in Router Advertisements. The IPv6 loopback (::1) and link-local addresses are still configured. The second controls if IPv6 addresses are desired at all. No IPv6 addresses will be added to any interfaces. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-01 03:07:33 -07:00
net: always pass struct netdev_notifier_info to netdevice notifiers commit 351638e7deeed2ec8ce451b53d3 (net: pass info struct via netdevice notifier) breaks booting of my KVM guest, this is due to we still forget to pass struct netdev_notifier_info in several places. This patch completes it. Cc: Jiri Pirko <jiri@resnulli.us> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-29 11:30:50 +08:00
IPv6: Add 'autoconf' and 'disable_ipv6' module parameters Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module. The first controls if IPv6 addresses are autoconfigured from prefixes received in Router Advertisements. The IPv6 loopback (::1) and link-local addresses are still configured. The second controls if IPv6 addresses are desired at all. No IPv6 addresses will be added to any interfaces. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-01 03:07:33 -07:00
net: Introduce for_each_netdev_rcu() iterator Adds RCU management to the list of netdevices. Convert some for_each_netdev() users to RCU version, if it can avoid read_lock-ing dev_base_lock Ie: read_lock(&dev_base_loack); for_each_netdev(net, dev) some_action(); read_unlock(&dev_base_lock); becomes : rcu_read_lock(); for_each_netdev_rcu(net, dev) some_action(); rcu_read_unlock(); Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-04 05:43:23 -08:00
IPv6: Add 'autoconf' and 'disable_ipv6' module parameters Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module. The first controls if IPv6 addresses are autoconfigured from prefixes received in Router Advertisements. The IPv6 loopback (::1) and link-local addresses are still configured. The second controls if IPv6 addresses are desired at all. No IPv6 addresses will be added to any interfaces. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-01 03:07:33 -07:00
net: Introduce for_each_netdev_rcu() iterator Adds RCU management to the list of netdevices. Convert some for_each_netdev() users to RCU version, if it can avoid read_lock-ing dev_base_lock Ie: read_lock(&dev_base_loack); for_each_netdev(net, dev) some_action(); read_unlock(&dev_base_lock); becomes : rcu_read_lock(); for_each_netdev_rcu(net, dev) some_action(); rcu_read_unlock(); Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-04 05:43:23 -08:00
IPv6: Add 'autoconf' and 'disable_ipv6' module parameters Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module. The first controls if IPv6 addresses are autoconfigured from prefixes received in Router Advertisements. The IPv6 loopback (::1) and link-local addresses are still configured. The second controls if IPv6 addresses are desired at all. No IPv6 addresses will be added to any interfaces. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-01 03:07:33 -07:00
net: race condition in ipv6 forwarding and disable_ipv6 parameters There is a race condition in addrconf_sysctl_forward() and addrconf_sysctl_disable(). These functions change idev->cnf.forwarding (resp. idev->cnf.disable_ipv6) and then try to grab the rtnl lock before performing any actions. If that fails they restore the original value and restart the syscall. This creates race conditions if ipv6 code tries to access these parameters, or if multiple instances try to do the same operation. As an example of the former, if __ipv6_ifa_notify() finds a 0 in idev->cnf.forwarding when invoked by addrconf_ifdown() it may not free anycast addresses, ultimately resulting in the net_device not being freed. This patch reads the user parameters into a temporary location and only writes the actual parameters when the rtnl lock is acquired. Tested in 2.6.38.8. Signed-off-by: Francesco Ruggeri <fruggeri@aristanetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-16 10:40:10 +00:00
IPv6: Add 'autoconf' and 'disable_ipv6' module parameters Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module. The first controls if IPv6 addresses are autoconfigured from prefixes received in Router Advertisements. The IPv6 loopback (::1) and link-local addresses are still configured. The second controls if IPv6 addresses are desired at all. No IPv6 addresses will be added to any interfaces. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-01 03:07:33 -07:00
net: race condition in ipv6 forwarding and disable_ipv6 parameters There is a race condition in addrconf_sysctl_forward() and addrconf_sysctl_disable(). These functions change idev->cnf.forwarding (resp. idev->cnf.disable_ipv6) and then try to grab the rtnl lock before performing any actions. If that fails they restore the original value and restart the syscall. This creates race conditions if ipv6 code tries to access these parameters, or if multiple instances try to do the same operation. As an example of the former, if __ipv6_ifa_notify() finds a 0 in idev->cnf.forwarding when invoked by addrconf_ifdown() it may not free anycast addresses, ultimately resulting in the net_device not being freed. This patch reads the user parameters into a temporary location and only writes the actual parameters when the rtnl lock is acquired. Tested in 2.6.38.8. Signed-off-by: Francesco Ruggeri <fruggeri@aristanetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-16 10:40:10 +00:00
IPv6: Add 'autoconf' and 'disable_ipv6' module parameters Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module. The first controls if IPv6 addresses are autoconfigured from prefixes received in Router Advertisements. The IPv6 loopback (::1) and link-local addresses are still configured. The second controls if IPv6 addresses are desired at all. No IPv6 addresses will be added to any interfaces. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-01 03:07:33 -07:00
net: race condition in ipv6 forwarding and disable_ipv6 parameters There is a race condition in addrconf_sysctl_forward() and addrconf_sysctl_disable(). These functions change idev->cnf.forwarding (resp. idev->cnf.disable_ipv6) and then try to grab the rtnl lock before performing any actions. If that fails they restore the original value and restart the syscall. This creates race conditions if ipv6 code tries to access these parameters, or if multiple instances try to do the same operation. As an example of the former, if __ipv6_ifa_notify() finds a 0 in idev->cnf.forwarding when invoked by addrconf_ifdown() it may not free anycast addresses, ultimately resulting in the net_device not being freed. This patch reads the user parameters into a temporary location and only writes the actual parameters when the rtnl lock is acquired. Tested in 2.6.38.8. Signed-off-by: Francesco Ruggeri <fruggeri@aristanetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-16 10:40:10 +00:00
IPv6: Add 'autoconf' and 'disable_ipv6' module parameters Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module. The first controls if IPv6 addresses are autoconfigured from prefixes received in Router Advertisements. The IPv6 loopback (::1) and link-local addresses are still configured. The second controls if IPv6 addresses are desired at all. No IPv6 addresses will be added to any interfaces. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-01 03:07:33 -07:00
net: race condition in ipv6 forwarding and disable_ipv6 parameters There is a race condition in addrconf_sysctl_forward() and addrconf_sysctl_disable(). These functions change idev->cnf.forwarding (resp. idev->cnf.disable_ipv6) and then try to grab the rtnl lock before performing any actions. If that fails they restore the original value and restart the syscall. This creates race conditions if ipv6 code tries to access these parameters, or if multiple instances try to do the same operation. As an example of the former, if __ipv6_ifa_notify() finds a 0 in idev->cnf.forwarding when invoked by addrconf_ifdown() it may not free anycast addresses, ultimately resulting in the net_device not being freed. This patch reads the user parameters into a temporary location and only writes the actual parameters when the rtnl lock is acquired. Tested in 2.6.38.8. Signed-off-by: Francesco Ruggeri <fruggeri@aristanetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-16 10:40:10 +00:00
IPv6: Add 'autoconf' and 'disable_ipv6' module parameters Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module. The first controls if IPv6 addresses are autoconfigured from prefixes received in Router Advertisements. The IPv6 loopback (::1) and link-local addresses are still configured. The second controls if IPv6 addresses are desired at all. No IPv6 addresses will be added to any interfaces. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-01 03:07:33 -07:00
net: Fix sysctl restarts... Yuck. It turns out that when we restart sysctls we were restarting with the values already changed. Which unfortunately meant that the second time through we thought there was no change and skipped all kinds of work, despite the fact that there was indeed a change. I have fixed this the simplest way possible by restoring the changed values when we restart the sysctl write. One of my coworkers spotted this bug when after disabling forwarding on an interface pings were still forwarded. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-19 13:22:59 +00:00
IPv6: Add 'autoconf' and 'disable_ipv6' module parameters Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module. The first controls if IPv6 addresses are autoconfigured from prefixes received in Router Advertisements. The IPv6 loopback (::1) and link-local addresses are still configured. The second controls if IPv6 addresses are desired at all. No IPv6 addresses will be added to any interfaces. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-01 03:07:33 -07:00
net: race condition in ipv6 forwarding and disable_ipv6 parameters There is a race condition in addrconf_sysctl_forward() and addrconf_sysctl_disable(). These functions change idev->cnf.forwarding (resp. idev->cnf.disable_ipv6) and then try to grab the rtnl lock before performing any actions. If that fails they restore the original value and restart the syscall. This creates race conditions if ipv6 code tries to access these parameters, or if multiple instances try to do the same operation. As an example of the former, if __ipv6_ifa_notify() finds a 0 in idev->cnf.forwarding when invoked by addrconf_ifdown() it may not free anycast addresses, ultimately resulting in the net_device not being freed. This patch reads the user parameters into a temporary location and only writes the actual parameters when the rtnl lock is acquired. Tested in 2.6.38.8. Signed-off-by: Francesco Ruggeri <fruggeri@aristanetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-16 10:40:10 +00:00
IPv6: Add 'autoconf' and 'disable_ipv6' module parameters Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module. The first controls if IPv6 addresses are autoconfigured from prefixes received in Router Advertisements. The IPv6 loopback (::1) and link-local addresses are still configured. The second controls if IPv6 addresses are desired at all. No IPv6 addresses will be added to any interfaces. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-01 03:07:33 -07:00
net: Convert uses of typedef ctl_table to struct ctl_table Reduce the uses of this unnecessary typedef. Done via perl script: $ git grep --name-only -w ctl_table net | \ xargs perl -p -i -e '\ sub trim { my ($local) = @_; $local =~ s/(^\s+|\s+$)//g; return $local; } \ s/\b(?<!struct\s)ctl_table\b(\s*\*\s*|\s+\w+)/"struct ctl_table " . trim($1)/ge' Reflow the modified lines that now exceed 80 columns. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-11 23:04:25 -07:00
IPv6: Add 'autoconf' and 'disable_ipv6' module parameters Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module. The first controls if IPv6 addresses are autoconfigured from prefixes received in Router Advertisements. The IPv6 loopback (::1) and link-local addresses are still configured. The second controls if IPv6 addresses are desired at all. No IPv6 addresses will be added to any interfaces. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-01 03:07:33 -07:00
net: Fix sysctl restarts... Yuck. It turns out that when we restart sysctls we were restarting with the values already changed. Which unfortunately meant that the second time through we thought there was no change and skipped all kinds of work, despite the fact that there was indeed a change. I have fixed this the simplest way possible by restoring the changed values when we restart the sysctl write. One of my coworkers spotted this bug when after disabling forwarding on an interface pings were still forwarded. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-19 13:22:59 +00:00
net: Convert uses of typedef ctl_table to struct ctl_table Reduce the uses of this unnecessary typedef. Done via perl script: $ git grep --name-only -w ctl_table net | \ xargs perl -p -i -e '\ sub trim { my ($local) = @_; $local =~ s/(^\s+|\s+$)//g; return $local; } \ s/\b(?<!struct\s)ctl_table\b(\s*\*\s*|\s+\w+)/"struct ctl_table " . trim($1)/ge' Reflow the modified lines that now exceed 80 columns. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-11 23:04:25 -07:00
IPv6: Add 'autoconf' and 'disable_ipv6' module parameters Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module. The first controls if IPv6 addresses are autoconfigured from prefixes received in Router Advertisements. The IPv6 loopback (::1) and link-local addresses are still configured. The second controls if IPv6 addresses are desired at all. No IPv6 addresses will be added to any interfaces. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-01 03:07:33 -07:00
net: race condition in ipv6 forwarding and disable_ipv6 parameters There is a race condition in addrconf_sysctl_forward() and addrconf_sysctl_disable(). These functions change idev->cnf.forwarding (resp. idev->cnf.disable_ipv6) and then try to grab the rtnl lock before performing any actions. If that fails they restore the original value and restart the syscall. This creates race conditions if ipv6 code tries to access these parameters, or if multiple instances try to do the same operation. As an example of the former, if __ipv6_ifa_notify() finds a 0 in idev->cnf.forwarding when invoked by addrconf_ifdown() it may not free anycast addresses, ultimately resulting in the net_device not being freed. This patch reads the user parameters into a temporary location and only writes the actual parameters when the rtnl lock is acquired. Tested in 2.6.38.8. Signed-off-by: Francesco Ruggeri <fruggeri@aristanetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-16 10:40:10 +00:00
IPv6: Add 'autoconf' and 'disable_ipv6' module parameters Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module. The first controls if IPv6 addresses are autoconfigured from prefixes received in Router Advertisements. The IPv6 loopback (::1) and link-local addresses are still configured. The second controls if IPv6 addresses are desired at all. No IPv6 addresses will be added to any interfaces. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-01 03:07:33 -07:00
net: Fix sysctl restarts... Yuck. It turns out that when we restart sysctls we were restarting with the values already changed. Which unfortunately meant that the second time through we thought there was no change and skipped all kinds of work, despite the fact that there was indeed a change. I have fixed this the simplest way possible by restoring the changed values when we restart the sysctl write. One of my coworkers spotted this bug when after disabling forwarding on an interface pings were still forwarded. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-19 13:22:59 +00:00
IPv6: Add 'autoconf' and 'disable_ipv6' module parameters Add 'autoconf' and 'disable_ipv6' parameters to the IPv6 module. The first controls if IPv6 addresses are autoconfigured from prefixes received in Router Advertisements. The IPv6 loopback (::1) and link-local addresses are still configured. The second controls if IPv6 addresses are desired at all. No IPv6 addresses will be added to any interfaces. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-01 03:07:33 -07:00
netconf: add support for IPv6 proxy_ndp Need to be able to see changes to proxy NDP status on a per interface basis via netlink (analog to proxy_arp). Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 22:37:14 -08:00
ipv6: introduce secret_stable to ipv6_devconf This patch implements the procfs logic for the stable_address knob: The secret is formatted as an ipv6 address and will be stored per interface and per namespace. We track initialized flag and return EIO errors until the secret is set. We don't inherit the secret to newly created namespaces. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:00 +01:00
ipv6: generation of stable privacy addresses for link-local and autoconf This patch implements the stable privacy address generation for link-local and autoconf addresses as specified in RFC7217. RID = F(Prefix, Net_Iface, Network_ID, DAD_Counter, secret_key) is the RID (random identifier). As the hash function F we chose one round of sha1. Prefix will be either the link-local prefix or the router advertised one. As Net_Iface we use the MAC address of the device. DAD_Counter and secret_key are implemented as specified. We don't use Network_ID, as it couples the code too closely to other subsystems. It is specified as optional in the RFC. As Net_Iface we only use the MAC address: we simply have no stable identifier in the kernel we could possibly use: because this code might run very early, we cannot depend on names, as they might be changed by user space early on during the boot process. A new address generation mode is introduced, IN6_ADDR_GEN_MODE_STABLE_PRIVACY. With iproute2 one can switch back to none or eui64 address configuration mode although the stable_secret is already set. We refuse writes to ipv6/conf/all/stable_secret but only allow ipv6/conf/default/stable_secret and the interface specific file to be written to. The default stable_secret is used as the parameter for the namespace, the interface specific can overwrite the secret, e.g. when switching a network configuration from one system to another while inheriting the secret. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:01 +01:00
ipv6: introduce secret_stable to ipv6_devconf This patch implements the procfs logic for the stable_address knob: The secret is formatted as an ipv6 address and will be stored per interface and per namespace. We track initialized flag and return EIO errors until the secret is set. We don't inherit the secret to newly created namespaces. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:00 +01:00
ipv6: generation of stable privacy addresses for link-local and autoconf This patch implements the stable privacy address generation for link-local and autoconf addresses as specified in RFC7217. RID = F(Prefix, Net_Iface, Network_ID, DAD_Counter, secret_key) is the RID (random identifier). As the hash function F we chose one round of sha1. Prefix will be either the link-local prefix or the router advertised one. As Net_Iface we use the MAC address of the device. DAD_Counter and secret_key are implemented as specified. We don't use Network_ID, as it couples the code too closely to other subsystems. It is specified as optional in the RFC. As Net_Iface we only use the MAC address: we simply have no stable identifier in the kernel we could possibly use: because this code might run very early, we cannot depend on names, as they might be changed by user space early on during the boot process. A new address generation mode is introduced, IN6_ADDR_GEN_MODE_STABLE_PRIVACY. With iproute2 one can switch back to none or eui64 address configuration mode although the stable_secret is already set. We refuse writes to ipv6/conf/all/stable_secret but only allow ipv6/conf/default/stable_secret and the interface specific file to be written to. The default stable_secret is used as the parameter for the namespace, the interface specific can overwrite the secret, e.g. when switching a network configuration from one system to another while inheriting the secret. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:01 +01:00
ipv6: introduce secret_stable to ipv6_devconf This patch implements the procfs logic for the stable_address knob: The secret is formatted as an ipv6 address and will be stored per interface and per namespace. We track initialized flag and return EIO errors until the secret is set. We don't inherit the secret to newly created namespaces. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:00 +01:00
addrconf: always initialize sysctl table data When sysctl performs restrict writes, it allows to write from a middle position of a sysctl file, which requires us to initialize the table data before calling proc_dostring() for the write case. Fixes: 3d1bec99320d ("ipv6: introduce secret_stable to ipv6_devconf") Reported-by: Sasha Levin <sasha.levin@oracle.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Tested-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-21 10:55:45 -08:00
ipv6: introduce secret_stable to ipv6_devconf This patch implements the procfs logic for the stable_address knob: The secret is formatted as an ipv6 address and will be stored per interface and per namespace. We track initialized flag and return EIO errors until the secret is set. We don't inherit the secret to newly created namespaces. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:00 +01:00
ipv6: generation of stable privacy addresses for link-local and autoconf This patch implements the stable privacy address generation for link-local and autoconf addresses as specified in RFC7217. RID = F(Prefix, Net_Iface, Network_ID, DAD_Counter, secret_key) is the RID (random identifier). As the hash function F we chose one round of sha1. Prefix will be either the link-local prefix or the router advertised one. As Net_Iface we use the MAC address of the device. DAD_Counter and secret_key are implemented as specified. We don't use Network_ID, as it couples the code too closely to other subsystems. It is specified as optional in the RFC. As Net_Iface we only use the MAC address: we simply have no stable identifier in the kernel we could possibly use: because this code might run very early, we cannot depend on names, as they might be changed by user space early on during the boot process. A new address generation mode is introduced, IN6_ADDR_GEN_MODE_STABLE_PRIVACY. With iproute2 one can switch back to none or eui64 address configuration mode although the stable_secret is already set. We refuse writes to ipv6/conf/all/stable_secret but only allow ipv6/conf/default/stable_secret and the interface specific file to be written to. The default stable_secret is used as the parameter for the namespace, the interface specific can overwrite the secret, e.g. when switching a network configuration from one system to another while inheriting the secret. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:01 +01:00
ipv6: introduce secret_stable to ipv6_devconf This patch implements the procfs logic for the stable_address knob: The secret is formatted as an ipv6 address and will be stored per interface and per namespace. We track initialized flag and return EIO errors until the secret is set. We don't inherit the secret to newly created namespaces. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:00 +01:00
netconf: add support for IPv6 proxy_ndp Need to be able to see changes to proxy NDP status on a per interface basis via netlink (analog to proxy_arp). Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 22:37:14 -08:00
net: ipv6 sysctl option to ignore routes when nexthop link is down Like the ipv4 patch with a similar title, this adds a sysctl to allow the user to change routing behavior based on whether or not the interface associated with the nexthop was an up or down link. The default setting preserves the current behavior, but anyone that enables it will notice that nexthops on down interfaces will no longer be selected: net.ipv6.conf.all.ignore_routes_with_linkdown = 0 net.ipv6.conf.default.ignore_routes_with_linkdown = 0 net.ipv6.conf.lo.ignore_routes_with_linkdown = 0 ... When the above sysctls are set, not only will link status be reported to userspace, but an indication that a nexthop is dead and will not be used is also reported. 1000::/8 via 7000::2 dev p7p1 metric 1024 dead linkdown pref medium 1000::/8 via 8000::2 dev p8p1 metric 1024 pref medium 7000::/8 dev p7p1 proto kernel metric 256 dead linkdown pref medium 8000::/8 dev p8p1 proto kernel metric 256 pref medium 9000::/8 via 8000::2 dev p8p1 metric 2048 pref medium 9000::/8 via 7000::2 dev p7p1 metric 1024 dead linkdown pref medium fe80::/64 dev p7p1 proto kernel metric 256 dead linkdown pref medium fe80::/64 dev p8p1 proto kernel metric 256 pref medium This also adds devconf support and notification when sysctl values change. v2: drop use of rt6i_nhflags since it is not needed right now Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: Dinesh Dutt <ddutt@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-13 10:39:01 -04:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: Convert uses of typedef ctl_table to struct ctl_table Reduce the uses of this unnecessary typedef. Done via perl script: $ git grep --name-only -w ctl_table net | \ xargs perl -p -i -e '\ sub trim { my ($local) = @_; $local =~ s/(^\s+|\s+$)//g; return $local; } \ s/\b(?<!struct\s)ctl_table\b(\s*\*\s*|\s+\w+)/"struct ctl_table " . trim($1)/ge' Reflow the modified lines that now exceed 80 columns. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-11 23:04:25 -07:00
[NET/IPV4/IPV6]: Change some sysctl variables to __read_mostly Change net/core, ipv4 and ipv6 sysctl variables to __read_mostly. Couldn't actually measure any performance increase while testing (.3% I consider noise), but seems like the right thing to do. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:15:41 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NET] IPV6: Fix whitespace errors. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-09 23:24:49 +09:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
ipv6: addrconf: validate new MTU before applying it Currently we don't check if the new MTU is valid or not and this allows one to configure a smaller than minimum allowed by RFCs or even bigger than interface own MTU, which is a problem as it may lead to packet drops. If you have a daemon like NetworkManager running, this may be exploited by remote attackers by forging RA packets with an invalid MTU, possibly leading to a DoS. (NetworkManager currently only validates for values too small, but not for too big ones.) The fix is just to make sure the new value is valid. That is, between IPV6_MIN_MTU and interface's MTU. Note that similar check is already performed at ndisc_router_discovery(), for when kernel itself parses the RA. Signed-off-by: Marcelo Ricardo Leitner <mleitner@redhat.com> Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-23 11:17:13 -03:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: make unsolicited report intervals configurable for mld Commit cab70040dfd95ee32144f02fade64f0cb94f31a0 ("net: igmp: Reduce Unsolicited report interval to 1s when using IGMPv3") and 2690048c01f32bf45d1c1e1ab3079bc10ad2aea7 ("net: igmp: Allow user-space configuration of igmp unsolicited report interval") by William Manley made igmp unsolicited report intervals configurable per interface and corrected the interval of unsolicited igmpv3 report messages resendings to 1s. Same needs to be done for IPv6: MLDv1 (RFC2710 7.10.): 10 seconds MLDv2 (RFC3810 9.11.): 1 second Both intervals are configurable via new procfs knobs mldv1_unsolicited_report_interval and mldv2_unsolicited_report_interval. (also added .force_mld_version to ipv6_devconf_dflt to bring structs in line without semantic changes) v2: a) Joined documentation update for IPv4 and IPv6 MLD/IGMP unsolicited_report_interval procfs knobs. b) incorporate stylistic feedback from William Manley v3: a) add new DEVCONF_* values to the end of the enum (thanks to David Miller) Cc: Cong Wang <xiyou.wangcong@gmail.com> Cc: William Manley <william.manley@youview.com> Cc: Benjamin LaHaise <bcrl@kvack.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-14 01:03:46 +02:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: ROUTE: Add accept_ra_defrtr sysctl. This controls whether we accept default router information in RAs. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 16:55:08 -08:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
[IPV6]: ROUTE: Add accept_ra_defrtr sysctl. This controls whether we accept default router information in RAs. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 16:55:08 -08:00
net/ipv6: add sysctl option accept_ra_min_hop_limit Commit 6fd99094de2b ("ipv6: Don't reduce hop limit for an interface") disabled accept hop limit from RA if it is smaller than the current hop limit for security stuff. But this behavior kind of break the RFC definition. RFC 4861, 6.3.4. Processing Received Router Advertisements A Router Advertisement field (e.g., Cur Hop Limit, Reachable Time, and Retrans Timer) may contain a value denoting that it is unspecified. In such cases, the parameter should be ignored and the host should continue using whatever value it is already using. If the received Cur Hop Limit value is non-zero, the host SHOULD set its CurHopLimit variable to the received value. So add sysctl option accept_ra_min_hop_limit to let user choose the minimum hop limit value they can accept from RA. And set default to 1 to meet RFC standards. Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Acked-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-30 14:28:42 +08:00
[IPV6]: ADDRCONF: Add accept_ra_pinfo sysctl. This controls whether we accept Prefix Information in RAs. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 16:55:26 -08:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
[IPV6]: ADDRCONF: Add accept_ra_pinfo sysctl. This controls whether we accept Prefix Information in RAs. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 16:55:26 -08:00
[IPV6]: ROUTE: Add accept_ra_rtr_pref sysctl. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 17:05:30 -08:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
[IPV6]: ROUTE: Add accept_ra_rtr_pref sysctl. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 17:05:30 -08:00
[IPV6]: ROUTE: Add router_probe_interval sysctl. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 17:05:47 -08:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
[IPV6]: ROUTE: Add router_probe_interval sysctl. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 17:05:47 -08:00
[IPV6]: Fix up some CONFIG typos Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-30 14:30:10 -08:00
[IPV6]: ROUTE: Add accept_ra_rt_info_max_plen sysctl. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 17:07:03 -08:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
[IPV6]: ROUTE: Add accept_ra_rt_info_max_plen sysctl. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 17:07:03 -08:00
[IPV6]: ROUTE: Add accept_ra_rtr_pref sysctl. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20 17:05:30 -08:00
[IPV6] NDISC: Add proxy_ndp sysctl. We do not always need proxy NDP functionality even we enable forwarding. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:43:49 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
netconf: add support for IPv6 proxy_ndp Need to be able to see changes to proxy NDP status on a per interface basis via netlink (analog to proxy_arp). Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 22:37:14 -08:00
[IPV6] NDISC: Add proxy_ndp sysctl. We do not always need proxy NDP functionality even we enable forwarding. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:43:49 -07:00
[IPV6]: Disallow RH0 by default. A security issue is emerging. Disallow Routing Header Type 0 by default as we have been doing for IPv4. Note: We allow RH2 by default because it is harmless. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-24 14:58:30 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
[IPV6]: Disallow RH0 by default. A security issue is emerging. Disallow Routing Header Type 0 by default as we have been doing for IPv4. Note: We allow RH2 by default because it is harmless. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-24 14:58:30 -07:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
net: ipv6: Add a sysctl to make optimistic addresses useful candidates Add a sysctl that causes an interface's optimistic addresses to be considered equivalent to other non-deprecated addresses for source address selection purposes. Preferred addresses will still take precedence over optimistic addresses, subject to other ranking in the source address selection algorithm. This is useful where different interfaces are connected to different networks from different ISPs (e.g., a cell network and a home wifi network). The current behaviour complies with RFC 3484/6724, and it makes sense if the host has only one interface, or has multiple interfaces on the same network (same or cooperating administrative domain(s), but not in the multiple distinct networks case. For example, if a mobile device has an IPv6 address on an LTE network and then connects to IPv6-enabled wifi, while the wifi IPv6 address is undergoing DAD, IPv6 connections will try use the wifi default route with the LTE IPv6 address, and will get stuck until they time out. Also, because optimistic nodes can receive frames, issue an RTM_NEWADDR as soon as DAD starts (with the IFA_F_OPTIMSTIC flag appropriately set). A second RTM_NEWADDR is sent if DAD completes (the address flags have changed), otherwise an RTM_DELADDR is sent. Also: add an entry in ip-sysctl.txt for optimistic_dad. Signed-off-by: Erik Kline <ek@google.com> Acked-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-28 18:11:14 +09:00
[IPV6] MROUTE: Support multicast forwarding. Based on ancient patch by Mickael Hoerdt <hoerdt@clarinet.u-strasbg.fr>, which is available at <http://www-r2.u-strasbg.fr/~hoerdt/dev/linux_ipv6_mforwarding/patch-linux-ipv6-mforwarding-0.1a>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-03 09:22:53 +09:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
[IPV6] MROUTE: Support multicast forwarding. Based on ancient patch by Mickael Hoerdt <hoerdt@clarinet.u-strasbg.fr>, which is available at <http://www-r2.u-strasbg.fr/~hoerdt/dev/linux_ipv6_mforwarding/patch-linux-ipv6-mforwarding-0.1a>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-03 09:22:53 +09:00
[IPV6] ADDRCONF: Optimistic Duplicate Address Detection (RFC 4429) Support. Nominally an autoconfigured IPv6 address is added to an interface in the Tentative state (as per RFC 2462). Addresses in this state remain in this state while the Duplicate Address Detection process operates on them to determine their uniqueness on the network. During this period, these tentative addresses may not be used for communication, increasing the time before a node may be able to communicate on a network. Using Optimistic Duplicate Address Detection, autoconfigured addresses may be used immediately for communication on the network, as long as certain rules are followed to avoid conflicts with other nodes during the Duplicate Address Detection process. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 17:08:10 -07:00
ipv6: Add disable_ipv6 sysctl to disable IPv6 operaion on specific interface. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-28 14:17:11 +09:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
ipv6: Add disable_ipv6 sysctl to disable IPv6 operaion on specific interface. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-28 14:17:11 +09:00
ipv6 addrconf: add accept_dad sysctl to control DAD operation. - If 0, disable DAD. - If 1, perform DAD (default). - If >1, perform DAD and disable IPv6 operation if DAD for MAC-based link-local address has been failed (RFC4862 5.4.5). We do not follow RFC4862 by default. Refer to the netdev thread entitled "Linux IPv6 DAD not full conform to RFC 4862 ?" http://www.spinics.net/lists/netdev/msg52027.html Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-28 14:18:38 +09:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
ipv6 addrconf: add accept_dad sysctl to control DAD operation. - If 0, disable DAD. - If 1, perform DAD (default). - If >1, perform DAD and disable IPv6 operation if DAD for MAC-based link-local address has been failed (RFC4862 5.4.5). We do not follow RFC4862 by default. Refer to the netdev thread entitled "Linux IPv6 DAD not full conform to RFC 4862 ?" http://www.spinics.net/lists/netdev/msg52027.html Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-28 14:18:38 +09:00
make TLLAO option for NA packets configurable On Friday 02 October 2009 20:53:51 you wrote: > This is good although I would have shortened the name. Ah, I knew I forgot something :) Here is v4. tavi >From 24d96d825b9fa832b22878cc6c990d5711968734 Mon Sep 17 00:00:00 2001 From: Octavian Purdila <opurdila@ixiacom.com> Date: Fri, 2 Oct 2009 00:51:15 +0300 Subject: [PATCH] ipv6: new sysctl for sending TLLAO with unicast NAs Neighbor advertisements responding to unicast neighbor solicitations did not include the target link-layer address option. This patch adds a new sysctl option (disabled by default) which controls whether this option should be sent even with unicast NAs. The need for this arose because certain routers expect the TLLAO in some situations even as a response to unicast NS packets. Moreover, RFC 2461 recommends sending this to avoid a race condition (section 4.4, Target link-layer address) Signed-off-by: Cosmin Ratiu <cratiu@ixiacom.com> Signed-off-by: Octavian Purdila <opurdila@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-02 11:39:15 +00:00
ipv6: add knob to send unsolicited ND on link-layer address change This patch introduces a new knob ndisc_notify. If enabled, the kernel will transmit an unsolicited neighbour advertisement on link-layer address change to update the neighbour tables of the corresponding hosts more quickly. This is the equivalent to arp_notify in ipv4 world. Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-06 16:46:20 +00:00
ipv6: drop fragmented ndisc packets by default (RFC 6980) This patch implements RFC6980: Drop fragmented ndisc packets by default. If a fragmented ndisc packet is received the user is informed that it is possible to disable the check. Cc: Fernando Gont <fernando@gont.com.ar> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-27 01:36:51 +02:00
ipv6: Allow accepting RA from local IP addresses. This can be used in virtual networking applications, and may have other uses as well. The option is disabled by default. A specific use case is setting up virtual routers, bridges, and hosts on a single OS without the use of network namespaces or virtual machines. With proper use of ip rules, routing tables, veth interface pairs and/or other virtual interfaces, and applications that can bind to interfaces and/or IP addresses, it is possibly to create one or more virtual routers with multiple hosts attached. The host interfaces can act as IPv6 systems, with radvd running on the ports in the virtual routers. With the option provided in this patch enabled, those hosts can now properly obtain IPv6 addresses from the radvd. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 14:44:53 -07:00
net: ipv6: Add sysctl entry to disable MTU updates from RA The kernel forcefully applies MTU values received in router advertisements provided the new MTU is less than the current. This behavior is undesirable when the user space is managing the MTU. Instead a sysctl flag 'accept_ra_mtu' is introduced such that the user space can control whether or not RA provided MTU updates should be applied. The default behavior is unchanged; user space must explicitly set this flag to 0 for RA MTUs to be ignored. Signed-off-by: Harout Hedeshian <harouth@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-20 10:06:05 -07:00
ipv6: introduce secret_stable to ipv6_devconf This patch implements the procfs logic for the stable_address knob: The secret is formatted as an ipv6 address and will be stored per interface and per namespace. We track initialized flag and return EIO errors until the secret is set. We don't inherit the secret to newly created namespaces. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:00 +01:00
ipv6: sysctl to restrict candidate source addresses Per RFC 6724, section 4, "Candidate Source Addresses": It is RECOMMENDED that the candidate source addresses be the set of unicast addresses assigned to the interface that will be used to send to the destination (the "outgoing" interface). Add a sysctl to enable this behaviour. Signed-off-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-22 16:38:25 +09:00
net: ipv6 sysctl option to ignore routes when nexthop link is down Like the ipv4 patch with a similar title, this adds a sysctl to allow the user to change routing behavior based on whether or not the interface associated with the nexthop was an up or down link. The default setting preserves the current behavior, but anyone that enables it will notice that nexthops on down interfaces will no longer be selected: net.ipv6.conf.all.ignore_routes_with_linkdown = 0 net.ipv6.conf.default.ignore_routes_with_linkdown = 0 net.ipv6.conf.lo.ignore_routes_with_linkdown = 0 ... When the above sysctls are set, not only will link status be reported to userspace, but an indication that a nexthop is dead and will not be used is also reported. 1000::/8 via 7000::2 dev p7p1 metric 1024 dead linkdown pref medium 1000::/8 via 8000::2 dev p8p1 metric 1024 pref medium 7000::/8 dev p7p1 proto kernel metric 256 dead linkdown pref medium 8000::/8 dev p8p1 proto kernel metric 256 pref medium 9000::/8 via 8000::2 dev p8p1 metric 2048 pref medium 9000::/8 via 7000::2 dev p7p1 metric 1024 dead linkdown pref medium fe80::/64 dev p7p1 proto kernel metric 256 dead linkdown pref medium fe80::/64 dev p8p1 proto kernel metric 256 pref medium This also adds devconf support and notification when sysctl values change. v2: drop use of rt6i_nhflags since it is not needed right now Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: Dinesh Dutt <ddutt@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-13 10:39:01 -04:00
ipv6: sysctl to restrict candidate source addresses Per RFC 6724, section 4, "Candidate Source Addresses": It is RECOMMENDED that the candidate source addresses be the set of unicast addresses assigned to the interface that will be used to send to the destination (the "outgoing" interface). Add a sysctl to enable this behaviour. Signed-off-by: Erik Kline <ek@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-22 16:38:25 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
sysctl net: Remove unused binary sysctl code Now that sys_sysctl is a compatiblity wrapper around /proc/sys all sysctl strategy routines, and all ctl_name and strategy entries in the sysctl tables are unused, and can be revmoed. In addition neigh_sysctl_register has been modified to no longer take a strategy argument and it's callers have been modified not to pass one. Cc: "David Miller" <davem@davemloft.net> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: netdev@vger.kernel.org Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2009-11-05 13:32:03 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETNS]: Make the ctl-tables per-namespace This includes passing the net to __addrconf_sysctl_register and saving this on the ctl_table->extra2 to be used in handlers (those, needing it). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:42:13 -08:00
sysctl net: Remove unused binary sysctl code Now that sys_sysctl is a compatiblity wrapper around /proc/sys all sysctl strategy routines, and all ctl_name and strategy entries in the sysctl tables are unused, and can be revmoed. In addition neigh_sysctl_register has been modified to no longer take a strategy argument and it's callers have been modified not to pass one. Cc: "David Miller" <davem@davemloft.net> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: netdev@vger.kernel.org Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2009-11-05 13:32:03 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net ipv6: Convert addrconf to use register_net_sysctl Using an ascii path to register_net_sysctl as opposed to the slightly awkward ctl_path allows for much simpler code. We no longer need to malloc dev_name to keep it alive the length of our sysctl register instead we can use a small temporary buffer on the stack. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-19 13:41:24 +00:00
[IPV6]: Use ctl paths to register addrconf sysctls This looks very much like the patch for ipv4's devinet. This is also intended to help us with the net namespaces and saves the ipv6.ko size by ~320 bytes. The difference from the first version is just the patch offsets, that changed due to changes in the patch #2. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-02 00:59:38 +11:00
[IPV6]: Use kmemdup Code diff stats: [acme@newtoy net-2.6.20]$ codiff /tmp/ipv6.ko.before /tmp/ipv6.ko.after /pub/scm/linux/kernel/git/acme/net-2.6.20/net/ipv6/ip6_output.c: ip6_output | -52 ip6_append_data | +2 2 functions changed, 2 bytes added, 52 bytes removed /pub/scm/linux/kernel/git/acme/net-2.6.20/net/ipv6/addrconf.c: addrconf_sysctl_register | -27 1 function changed, 27 bytes removed /pub/scm/linux/kernel/git/acme/net-2.6.20/net/ipv6/tcp_ipv6.c: tcp_v6_syn_recv_sock | -32 tcp_v6_parse_md5_keys | -24 2 functions changed, 56 bytes removed /tmp/ipv6.ko.after: 5 functions changed, 2 bytes added, 135 bytes removed [acme@newtoy net-2.6.20]$ Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-11-17 12:14:37 -02:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
[IPV6]: Cleanup the addconf_sysctl_register This only includes fixing the space-indented lines and removing one unneeded else after the goto. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-02 00:21:52 +11:00
IPv6: addrconf cleanups Some minor stuff, reformat comments and add whitespace for clarity Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:08:18 -07:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETNS]: Make the ctl-tables per-namespace This includes passing the net to __addrconf_sysctl_register and saving this on the ctl_table->extra2 to be used in handlers (those, needing it). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:42:13 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net ipv6: Convert addrconf to use register_net_sysctl Using an ascii path to register_net_sysctl as opposed to the slightly awkward ctl_path allows for much simpler code. We no longer need to malloc dev_name to keep it alive the length of our sysctl register instead we can use a small temporary buffer on the stack. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-19 13:41:24 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net ipv6: Convert addrconf to use register_net_sysctl Using an ascii path to register_net_sysctl as opposed to the slightly awkward ctl_path allows for much simpler code. We no longer need to malloc dev_name to keep it alive the length of our sysctl register instead we can use a small temporary buffer on the stack. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-19 13:41:24 +00:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
net ipv6: Convert addrconf to use register_net_sysctl Using an ascii path to register_net_sysctl as opposed to the slightly awkward ctl_path allows for much simpler code. We no longer need to malloc dev_name to keep it alive the length of our sysctl register instead we can use a small temporary buffer on the stack. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-19 13:41:24 +00:00
[IPV6]: Cleanup the addconf_sysctl_register This only includes fixing the space-indented lines and removing one unneeded else after the goto. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-02 00:21:52 +11:00
[NETNS]: Make the __addrconf_sysctl_register return an error This error code will be needed to abort the namespace creation if needed. Probably, this is to be checked when a new device is created (currently it is ignored). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:41:45 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Cleanup the addconf_sysctl_register This only includes fixing the space-indented lines and removing one unneeded else after the goto. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-02 00:21:52 +11:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: Cleanup the addconf_sysctl_register This only includes fixing the space-indented lines and removing one unneeded else after the goto. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-02 00:21:52 +11:00
[NETNS]: Make the __addrconf_sysctl_register return an error This error code will be needed to abort the namespace creation if needed. Probably, this is to be checked when a new device is created (currently it is ignored). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:41:45 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETNS]: Clean out the ipv6-related sysctls creation/destruction The addrconf sysctls and neigh sysctls are registered and unregistered always in pairs, so they can be joined into one (well, two) functions, that accept the struct inet6_dev and do all the job. This also get rids of unneeded ifdefs inside the code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:41:21 -08:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
[NETNS]: Clean out the ipv6-related sysctls creation/destruction The addrconf sysctls and neigh sysctls are registered and unregistered always in pairs, so they can be joined into one (well, two) functions, that accept the struct inet6_dev and do all the job. This also get rids of unneeded ifdefs inside the code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:41:21 -08:00
sysctl: net: call unregister_net_sysctl_table where needed ctl_table_headers registered with register_net_sysctl_table should have been unregistered with the equivalent unregister_net_sysctl_table Signed-off-by: Lucian Adrian Grijincu <lucian.grijincu@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-01 01:44:01 +00:00
[NETNS]: Clean out the ipv6-related sysctls creation/destruction The addrconf sysctls and neigh sysctls are registered and unregistered always in pairs, so they can be joined into one (well, two) functions, that accept the struct inet6_dev and do all the job. This also get rids of unneeded ifdefs inside the code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:41:21 -08:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
[IPV6]: Unify and cleanup calls to addrconf_sysctl_register Currently this call is (ab)used similar to devinet one - it registers sysctls for devices and for the "default" confs, while the "all" sysctls are registered separately. But unlike its devinet brother, the passed inet6_device is needed. The fix is to make a __addrconf_sysctl_register(), which registers sysctls for all "devices" we need, including "default" and "all" :) The original addrconf_sysctl_register() calls the introduced function, passing the inet6_device, device name and ifindex (to be used as procname and ctl_name) into it. Thanks to Herbert again for pointing out, that we can shrink the argument list to 1 :) Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-02 00:58:37 +11:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
[IPV6]: Unify and cleanup calls to addrconf_sysctl_register Currently this call is (ab)used similar to devinet one - it registers sysctls for devices and for the "default" confs, while the "all" sysctls are registered separately. But unlike its devinet brother, the passed inet6_device is needed. The fix is to make a __addrconf_sysctl_register(), which registers sysctls for all "devices" we need, including "default" and "all" :) The original addrconf_sysctl_register() calls the introduced function, passing the inet6_device, device name and ifindex (to be used as procname and ctl_name) into it. Thanks to Herbert again for pointing out, that we can shrink the argument list to 1 :) Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-02 00:58:37 +11:00
[NETNS]: Clean out the ipv6-related sysctls creation/destruction The addrconf sysctls and neigh sysctls are registered and unregistered always in pairs, so they can be joined into one (well, two) functions, that accept the struct inet6_dev and do all the job. This also get rids of unneeded ifdefs inside the code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:41:21 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETNS]: Clean out the ipv6-related sysctls creation/destruction The addrconf sysctls and neigh sysctls are registered and unregistered always in pairs, so they can be joined into one (well, two) functions, that accept the struct inet6_dev and do all the job. This also get rids of unneeded ifdefs inside the code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:41:21 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
net: spread __net_init, __net_exit __net_init/__net_exit are apparently not going away, so use them to full extent. In some cases __net_init was removed, because it was called from __net_exit code. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-17 03:35:32 +00:00
[NETNS]: Create ipv6 devconf-s for namespaces This is the core. Declare and register the pernet subsys for addrconf. The init callback the will create the devconf-s. The init_net will reuse the existing statically declared confs, so that accessing them from inside the ipv6 code will still work. The register_pernet_subsys() is moved above the ipv6_add_dev() call for loopback, because this function will need the net->devconf_dflt pointer to be already set. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:42:55 -08:00
ipv6: fix bad free of addrconf_init_net Signed-off-by: Hong Zhiguo <honkiko@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-26 01:52:45 +08:00
[NETNS]: Create ipv6 devconf-s for namespaces This is the core. Declare and register the pernet subsys for addrconf. The init callback the will create the devconf-s. The init_net will reuse the existing statically declared confs, so that accessing them from inside the ipv6 code will still work. The register_pernet_subsys() is moved above the ipv6_add_dev() call for loopback, because this function will need the net->devconf_dflt pointer to be already set. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:42:55 -08:00
ipv6: fix bad free of addrconf_init_net Signed-off-by: Hong Zhiguo <honkiko@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-26 01:52:45 +08:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
ipv6: fix bad free of addrconf_init_net Signed-off-by: Hong Zhiguo <honkiko@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-26 01:52:45 +08:00
[NETNS]: Create ipv6 devconf-s for namespaces This is the core. Declare and register the pernet subsys for addrconf. The init callback the will create the devconf-s. The init_net will reuse the existing statically declared confs, so that accessing them from inside the ipv6 code will still work. The register_pernet_subsys() is moved above the ipv6_add_dev() call for loopback, because this function will need the net->devconf_dflt pointer to be already set. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:42:55 -08:00
ipv6: fix bad free of addrconf_init_net Signed-off-by: Hong Zhiguo <honkiko@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-26 01:52:45 +08:00
ipv6: coding style: comparison for equality with NULL The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: Ian Morris <ipm@chirality.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 14:00:04 +01:00
ipv6: fix bad free of addrconf_init_net Signed-off-by: Hong Zhiguo <honkiko@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-26 01:52:45 +08:00
[NETNS]: Create ipv6 devconf-s for namespaces This is the core. Declare and register the pernet subsys for addrconf. The init callback the will create the devconf-s. The init_net will reuse the existing statically declared confs, so that accessing them from inside the ipv6 code will still work. The register_pernet_subsys() is moved above the ipv6_add_dev() call for loopback, because this function will need the net->devconf_dflt pointer to be already set. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:42:55 -08:00
ipv6: fix bad free of addrconf_init_net Signed-off-by: Hong Zhiguo <honkiko@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-26 01:52:45 +08:00
[NETNS]: Create ipv6 devconf-s for namespaces This is the core. Declare and register the pernet subsys for addrconf. The init callback the will create the devconf-s. The init_net will reuse the existing statically declared confs, so that accessing them from inside the ipv6 code will still work. The register_pernet_subsys() is moved above the ipv6_add_dev() call for loopback, because this function will need the net->devconf_dflt pointer to be already set. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:42:55 -08:00
ipv6: introduce secret_stable to ipv6_devconf This patch implements the procfs logic for the stable_address knob: The secret is formatted as an ipv6 address and will be stored per interface and per namespace. We track initialized flag and return EIO errors until the secret is set. We don't inherit the secret to newly created namespaces. Cc: Erik Kline <ek@google.com> Cc: Fernando Gont <fgont@si6networks.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23 23:36:00 +01:00
[NETNS]: Create ipv6 devconf-s for namespaces This is the core. Declare and register the pernet subsys for addrconf. The init callback the will create the devconf-s. The init_net will reuse the existing statically declared confs, so that accessing them from inside the ipv6 code will still work. The register_pernet_subsys() is moved above the ipv6_add_dev() call for loopback, because this function will need the net->devconf_dflt pointer to be already set. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:42:55 -08:00
sysctl net: Remove unused binary sysctl code Now that sys_sysctl is a compatiblity wrapper around /proc/sys all sysctl strategy routines, and all ctl_name and strategy entries in the sysctl tables are unused, and can be revmoed. In addition neigh_sysctl_register has been modified to no longer take a strategy argument and it's callers have been modified not to pass one. Cc: "David Miller" <davem@davemloft.net> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: netdev@vger.kernel.org Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2009-11-05 13:32:03 -08:00
[NETNS]: Create ipv6 devconf-s for namespaces This is the core. Declare and register the pernet subsys for addrconf. The init callback the will create the devconf-s. The init_net will reuse the existing statically declared confs, so that accessing them from inside the ipv6 code will still work. The register_pernet_subsys() is moved above the ipv6_add_dev() call for loopback, because this function will need the net->devconf_dflt pointer to be already set. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:42:55 -08:00
sysctl net: Remove unused binary sysctl code Now that sys_sysctl is a compatiblity wrapper around /proc/sys all sysctl strategy routines, and all ctl_name and strategy entries in the sysctl tables are unused, and can be revmoed. In addition neigh_sysctl_register has been modified to no longer take a strategy argument and it's callers have been modified not to pass one. Cc: "David Miller" <davem@davemloft.net> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: netdev@vger.kernel.org Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2009-11-05 13:32:03 -08:00
[NETNS]: Create ipv6 devconf-s for namespaces This is the core. Declare and register the pernet subsys for addrconf. The init callback the will create the devconf-s. The init_net will reuse the existing statically declared confs, so that accessing them from inside the ipv6 code will still work. The register_pernet_subsys() is moved above the ipv6_add_dev() call for loopback, because this function will need the net->devconf_dflt pointer to be already set. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:42:55 -08:00
net: spread __net_init, __net_exit __net_init/__net_exit are apparently not going away, so use them to full extent. In some cases __net_init was removed, because it was called from __net_exit code. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-17 03:35:32 +00:00
[NETNS]: Create ipv6 devconf-s for namespaces This is the core. Declare and register the pernet subsys for addrconf. The init callback the will create the devconf-s. The init_net will reuse the existing statically declared confs, so that accessing them from inside the ipv6 code will still work. The register_pernet_subsys() is moved above the ipv6_add_dev() call for loopback, because this function will need the net->devconf_dflt pointer to be already set. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:42:55 -08:00
ipv6: Remove unnecessary test The "init_net" test in function addrconf_exit_net is introduced in commit 44a6bd29 [Create ipv6 devconf-s for namespaces] to avoid freeing init_net. In commit c900a800 [ipv6: fix bad free of addrconf_init_net], function addrconf_init_net will allocate memory for every net regardless of init_net. In this case, it is unnecessary to make "init_net" test. CC: Hong Zhiguo <honkiko@gmail.com> CC: Octavian Purdila <opurdila@ixiacom.com> CC: Pavel Emelyanov <xemul@openvz.org> CC: Cong Wang <cwang@twopensource.com> Suggested-by: David S. Miller <davem@davemloft.net> Signed-off-by: Zhu Yanjun <Yanjun.Zhu@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-26 10:25:58 +08:00
[NETNS]: Create ipv6 devconf-s for namespaces This is the core. Declare and register the pernet subsys for addrconf. The init callback the will create the devconf-s. The init_net will reuse the existing statically declared confs, so that accessing them from inside the ipv6 code will still work. The register_pernet_subsys() is moved above the ipv6_add_dev() call for loopback, because this function will need the net->devconf_dflt pointer to be already set. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:42:55 -08:00
net: mark some potential candidates __read_mostly They are all either written once or extremly rarely (e.g. from init code), so we can move them to the .data..read_mostly section. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-29 12:15:03 +01:00
ipv6: AF_INET6 link address family IPv6 already exposes some address family data via netlink in the IFLA_PROTINFO attribute if RTM_GETLINK request is sent with the address family set to AF_INET6. We take over this format and reuse all the code. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16 04:33:57 +00:00
ipv6: addrconf: add missing validate_link_af handler We still need a validate_link_af() handler with an appropriate nla policy, similarly as we have in IPv4 case, otherwise size validations are not being done properly in that case. Fixes: f53adae4eae5 ("net: ipv6: add tokenized interface identifier support") Fixes: bc91b0f07ada ("ipv6: addrconf: implement address generation modes") Cc: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-05 14:39:11 +01:00
net: ipv6: add tokenized interface identifier support This patch adds support for IPv6 tokenized IIDs, that allow for administrators to assign well-known host-part addresses to nodes whilst still obtaining global network prefix from Router Advertisements. It is currently in draft status. The primary target for such support is server platforms where addresses are usually manually configured, rather than using DHCPv6 or SLAAC. By using tokenised identifiers, hosts can still determine their network prefix by use of SLAAC, but more readily be automatically renumbered should their network prefix change. [...] The disadvantage with static addresses is that they are likely to require manual editing should the network prefix in use change. If instead there were a method to only manually configure the static identifier part of the IPv6 address, then the address could be automatically updated when a new prefix was introduced, as described in [RFC4192] for example. In such cases a DNS server might be configured with such a tokenised interface identifier of ::53, and SLAAC would use the token in constructing the interface address, using the advertised prefix. [...] http://tools.ietf.org/html/draft-chown-6man-tokenised-ipv6-identifiers-02 The implementation is partially based on top of Mark K. Thompson's proof of concept. However, it uses the Netlink interface for configuration resp. data retrival, so that it can be easily extended in future. Successfully tested by myself. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08 04:01:30 +00:00
ipv6: AF_INET6 link address family IPv6 already exposes some address family data via netlink in the IFLA_PROTINFO attribute if RTM_GETLINK request is sent with the address family set to AF_INET6. We take over this format and reuse all the code. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16 04:33:57 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
ipv6: convert addrconf list to hlist Using hash list macros, simplifies code and helps later RCU. This patch includes some initialization that is not strictly necessary, since an empty hlist node/list is all zero; and list is in BSS and node is allocated with kzalloc. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:10 +00:00
[IPV6] ADDRCONF: Support RFC3484 configurable address selection policy table. Policy table is implemented as an RCU linear list since we do not expect large list nor frequent updates. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-14 15:56:23 +09:00
addrconf: checkpatch fixes Fix some of the checkpatch complaints. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-20 16:09:01 -07:00
net: ipv6: Standardize prefixes for message logging Add #define pr_fmt(fmt) as appropriate. Add "IPv6: " to appropriate files. Convert printk(KERN_<LEVEL> to pr_<level> (but not KERN_DEBUG). Standardize on "%s: " not "%s(): " when emitting __func__. Use "%s: ", __func__ instead of embedding function name. Coalesce formats, align arguments. ADDRCONF output is now prefixed with "IPv6: " Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-15 14:11:53 +00:00
ipv6: add a missing unregister_pernet_subsys call Clean up a missing exit path in the ipv6 module init routines. In addrconf_init we call ipv6_addr_label_init which calls register_pernet_subsys for the ipv6_addr_label_ops structure. But if module loading fails, or if the ipv6 module is removed, there is no corresponding unregister_pernet_subsys call, which leaves a now-bogus address on the pernet_list, leading to oopses in subsequent registrations. This patch cleans up both the failed load path and the unload path. Tested by myself with good results. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> include/net/addrconf.h | 1 + net/ipv6/addrconf.c | 11 ++++++++--- net/ipv6/addrlabel.c | 5 +++++ 3 files changed, 14 insertions(+), 3 deletions(-) Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-24 09:55:52 +00:00
[IPV6] ADDRCONF: Support RFC3484 configurable address selection policy table. Policy table is implemented as an RCU linear list since we do not expect large list nor frequent updates. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-14 15:56:23 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: add a missing unregister_pernet_subsys call Clean up a missing exit path in the ipv6 module init routines. In addrconf_init we call ipv6_addr_label_init which calls register_pernet_subsys for the ipv6_addr_label_ops structure. But if module loading fails, or if the ipv6 module is removed, there is no corresponding unregister_pernet_subsys call, which leaves a now-bogus address on the pernet_list, leading to oopses in subsequent registrations. This patch cleans up both the failed load path and the unload path. Tested by myself with good results. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> include/net/addrconf.h | 1 + net/ipv6/addrconf.c | 11 ++++++++--- net/ipv6/addrlabel.c | 5 +++++ 3 files changed, 14 insertions(+), 3 deletions(-) Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-24 09:55:52 +00:00
[NETNS]: Create ipv6 devconf-s for namespaces This is the core. Declare and register the pernet subsys for addrconf. The init callback the will create the devconf-s. The init_net will reuse the existing statically declared confs, so that accessing them from inside the ipv6 code will still work. The register_pernet_subsys() is moved above the ipv6_add_dev() call for loopback, because this function will need the net->devconf_dflt pointer to be already set. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:42:55 -08:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
[NETNS]: Create ipv6 devconf-s for namespaces This is the core. Declare and register the pernet subsys for addrconf. The init callback the will create the devconf-s. The init_net will reuse the existing statically declared confs, so that accessing them from inside the ipv6 code will still work. The register_pernet_subsys() is moved above the ipv6_add_dev() call for loopback, because this function will need the net->devconf_dflt pointer to be already set. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:42:55 -08:00
ipv6: fail early when creating netdev named all or default We create a proc dir for each network device, this will cause conflicts when the devices have name "all" or "default". Rather than emitting an ugly kernel warning, we could just fail earlier by checking the device name. Reported-by: Stephane Chazelas <stephane.chazelas@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-25 15:25:09 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: convert addrconf list to hlist Using hash list macros, simplifies code and helps later RCU. This patch includes some initialization that is not strictly necessary, since an empty hlist node/list is all zero; and list is in BSS and node is allocated with kzalloc. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:10 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
[IPv6]: Use rtnl registration interface Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-22 11:58:32 -07:00
netlink: cleanup rntl_af_register The function __rtnl_af_register is never called outside this code, and the return value is always 0. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-30 10:41:32 -08:00
ipv6: AF_INET6 link address family IPv6 already exposes some address family data via netlink in the IFLA_PROTINFO attribute if RTM_GETLINK request is sent with the address family set to AF_INET6. We take over this format and reuse all the code. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16 04:33:57 +00:00
rtnetlink: Compute and store minimum ifinfo dump size The message size allocated for rtnl ifinfo dumps was limited to a single page. This is not enough for additional interface info available with devices that support SR-IOV and caused a bug in which VF info would not be displayed if more than approximately 40 VFs were created per interface. Implement a new function pointer for the rtnl_register service that will calculate the amount of data required for the ifinfo dump and allocate enough data to satisfy the request. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-06-10 01:27:09 +00:00
[IPv6]: Use rtnl registration interface Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-22 11:58:32 -07:00
rtnetlink: Compute and store minimum ifinfo dump size The message size allocated for rtnl ifinfo dumps was limited to a single page. This is not enough for additional interface info available with devices that support SR-IOV and caused a bug in which VF info would not be displayed if more than approximately 40 VFs were created per interface. Implement a new function pointer for the rtnl_register service that will calculate the amount of data required for the ifinfo dump and allocate enough data to satisfy the request. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-06-10 01:27:09 +00:00
rtnl/ipv6: add support of RTM_GETNETCONF This message allows to get the devconf for an interface. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-10-25 22:28:51 +00:00
netconf: add the handler to dump entries It's useful to be able to get the initial state of all entries. The patch adds the support for IPv4 and IPv6. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-05 23:42:06 +00:00
[IPv6]: Use rtnl registration interface Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-22 11:58:32 -07:00
[IPV6] ADDRCONF: Support RFC3484 configurable address selection policy table. Policy table is implemented as an RCU linear list since we do not expect large list nor frequent updates. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-14 15:56:23 +09:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPv6]: Use rtnl registration interface Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-22 11:58:32 -07:00
ipv6: AF_INET6 link address family IPv6 already exposes some address family data via netlink in the IFLA_PROTINFO attribute if RTM_GETLINK request is sent with the address family set to AF_INET6. We take over this format and reuse all the code. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16 04:33:57 +00:00
[IPv6]: Use rtnl registration interface Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-22 11:58:32 -07:00
[NETNS]: Create ipv6 devconf-s for namespaces This is the core. Declare and register the pernet subsys for addrconf. The init callback the will create the devconf-s. The init_net will reuse the existing statically declared confs, so that accessing them from inside the ipv6 code will still work. The register_pernet_subsys() is moved above the ipv6_add_dev() call for loopback, because this function will need the net->devconf_dflt pointer to be already set. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:42:55 -08:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
[NETNS]: Create ipv6 devconf-s for namespaces This is the core. Declare and register the pernet subsys for addrconf. The init callback the will create the devconf-s. The init_net will reuse the existing statically declared confs, so that accessing them from inside the ipv6 code will still work. The register_pernet_subsys() is moved above the ipv6_add_dev() call for loopback, because this function will need the net->devconf_dflt pointer to be already set. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:42:55 -08:00
ipv6: add a missing unregister_pernet_subsys call Clean up a missing exit path in the ipv6 module init routines. In addrconf_init we call ipv6_addr_label_init which calls register_pernet_subsys for the ipv6_addr_label_ops structure. But if module loading fails, or if the ipv6 module is removed, there is no corresponding unregister_pernet_subsys call, which leaves a now-bogus address on the pernet_list, leading to oopses in subsequent registrations. This patch cleans up both the failed load path and the unload path. Tested by myself with good results. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> include/net/addrconf.h | 1 + net/ipv6/addrconf.c | 11 ++++++++--- net/ipv6/addrlabel.c | 5 +++++ 3 files changed, 14 insertions(+), 3 deletions(-) Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-24 09:55:52 +00:00
[IPv6]: Use rtnl registration interface Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-22 11:58:32 -07:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[IPV6]: fix section mismatch warnings Removed useless and buggy __exit section in the different ipv6 subsystems. Otherwise they will be called inside an init section during rollbacking in case of an error in the protocol initialization. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-13 05:34:58 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
netns: fix addrconf_ifdown kernel panic When a network namespace is destroyed the network interfaces are all unregistered, making addrconf_ifdown called by the netdevice notifier. In the other hand, the addrconf exit method does a loop on the network devices and does addrconf_ifdown on each of them. But the ordering of the netns subsystem is not right because it uses the register_pernet_device instead of register_pernet_subsys. If we handle the loopback as any network device, we can safely use register_pernet_subsys. But if we use register_pernet_subsys, the addrconf exit method will do exactly what was already done with the unregistering of the network devices. So in definitive, this code is pointless. I removed the netns addrconf exit method and moved the code to the addrconf cleanup function. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-03 01:06:45 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
[NETNS]: Create ipv6 devconf-s for namespaces This is the core. Declare and register the pernet subsys for addrconf. The init callback the will create the devconf-s. The init_net will reuse the existing statically declared confs, so that accessing them from inside the ipv6 code will still work. The register_pernet_subsys() is moved above the ipv6_add_dev() call for loopback, because this function will need the net->devconf_dflt pointer to be already set. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-10 17:42:55 -08:00
ipv6: add a missing unregister_pernet_subsys call Clean up a missing exit path in the ipv6 module init routines. In addrconf_init we call ipv6_addr_label_init which calls register_pernet_subsys for the ipv6_addr_label_ops structure. But if module loading fails, or if the ipv6 module is removed, there is no corresponding unregister_pernet_subsys call, which leaves a now-bogus address on the pernet_list, leading to oopses in subsequent registrations. This patch cleans up both the failed load path and the unload path. Tested by myself with good results. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> include/net/addrconf.h | 1 + net/ipv6/addrconf.c | 11 ++++++++--- net/ipv6/addrlabel.c | 5 +++++ 3 files changed, 14 insertions(+), 3 deletions(-) Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-24 09:55:52 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: AF_INET6 link address family IPv6 already exposes some address family data via netlink in the IFLA_PROTINFO attribute if RTM_GETLINK request is sent with the address family set to AF_INET6. We take over this format and reuse all the code. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16 04:33:57 +00:00
netns: fix addrconf_ifdown kernel panic When a network namespace is destroyed the network interfaces are all unregistered, making addrconf_ifdown called by the netdevice notifier. In the other hand, the addrconf exit method does a loop on the network devices and does addrconf_ifdown on each of them. But the ordering of the netns subsystem is not right because it uses the register_pernet_device instead of register_pernet_subsys. If we handle the loopback as any network device, we can safely use register_pernet_subsys. But if we use register_pernet_subsys, the addrconf exit method will do exactly what was already done with the unregistering of the network devices. So in definitive, this code is pointless. I removed the netns addrconf exit method and moved the code to the addrconf cleanup function. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-03 01:06:45 -08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
IPv6: convert addrconf hash list to RCU Convert from reader/writer lock to RCU and spinlock for addrconf hash list. Adds an additional helper macro for hlist_for_each_entry_continue_rcu to handle the continue case. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:11 +00:00
ipv6: convert addrconf list to hlist Using hash list macros, simplifies code and helps later RCU. This patch includes some initialization that is not strictly necessary, since an empty hlist node/list is all zero; and list is in BSS and node is allocated with kzalloc. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:10 +00:00
IPv6: convert addrconf hash list to RCU Convert from reader/writer lock to RCU and spinlock for addrconf hash list. Adds an additional helper macro for hlist_for_each_entry_continue_rcu to handle the continue case. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-17 20:31:11 +00:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
ipv6: move DAD and addrconf_verify processing to workqueue addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-27 18:28:07 +01:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00