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linux/net/ipv6
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David Ahern 0bc26d1ca3 net: ipv6: Compare lwstate in detecting duplicate nexthops 
commit f06b7549b7 upstream.

Lennert reported a failure to add different mpls encaps in a multipath
route:

  $ ip -6 route add 1234::/16 \
        nexthop encap mpls 10 via fe80::1 dev ens3 \
        nexthop encap mpls 20 via fe80::1 dev ens3
  RTNETLINK answers: File exists

The problem is that the duplicate nexthop detection does not compare
lwtunnel configuration. Add it.

Fixes: 19e42e4515 ("ipv6: support for fib route lwtunnel encap attributes")
Signed-off-by: David Ahern <dsahern@gmail.com>
Reported-by: João Taveira Araújo <joao.taveira@gmail.com>
Reported-by: Lennert Buytenhek <buytenh@wantstofly.org>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Tested-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2017-07-21 07:42:19 +02:00
..
ila ila_xlat: add missing hash secret initialization 2017-06-24 07:11:12 +02:00
netfilter ipv6: orphan skbs in reassembly unit 2017-03-22 12:43:33 +01:00
addrconf.c ipv6: dad: don't remove dynamic addresses if link is down 2017-07-21 07:42:18 +02:00
addrconf_core.c ipv6: change ipv6_stub_impl.ipv6_dst_lookup to take net argument 2015-07-31 15:21:30 -07:00
addrlabel.c ipv6/addrlabel: fix ip6addrlbl_get() 2015-12-22 15:57:54 -05:00
af_inet6.c tcp: Set read_sock and peek_len proto_ops 2016-08-28 23:32:41 -04:00
ah6.c ah6: fix error return code 2015-08-25 13:37:31 -07:00
anycast.c ipv6: coding style: comparison for equality with NULL 2015-03-31 13:51:54 -04:00
calipso.c net/ipv6: Fix CALIPSO causing GPF with datagram support 2017-06-14 15:05:52 +02:00
datagram.c ipv6: Handle IPv4-mapped src to in6addr_any dst. 2017-06-17 06:41:49 +02:00
esp6.c esp6: Fix integrity verification when ESN are used 2016-11-30 11:10:16 +01:00
exthdrs.c Merge branch 'stable-4.8' of git://git.infradead.org/users/pcmoore/selinux into next 2016-07-07 10:15:34 +10:00
exthdrs_core.c ipv6: constify the skb pointer of ipv6_find_tlv(). 2016-06-27 15:06:15 -04:00
exthdrs_offload.c ipv6: fix exthdrs offload registration in out_rt path 2015-09-02 15:31:00 -07:00
fib6_rules.c ipv6: Do not leak throw route references 2017-07-05 14:40:16 +02:00
fou6.c fou: add Kconfig options for IPv6 support 2016-05-29 22:24:21 -07:00
icmp.c net: handle no dst on skb in icmp6_send 2016-11-28 16:13:01 -05:00
inet6_connection_sock.c tcp: don't annotate mark on control socket from tcp_v6_send_response() 2017-02-18 15:11:44 +01:00
inet6_hashtables.c inet: Fix missing return value in inet6_hash 2016-10-29 12:01:49 -04:00
ip6_checksum.c ipv6: fix checksum annotation in udp6_csum_init 2016-06-14 15:26:42 -04:00
ip6_fib.c net: ipv6: Compare lwstate in detecting duplicate nexthops 2017-07-21 07:42:19 +02:00
ip6_flowlabel.c ipv6: add new struct ipcm6_cookie 2016-05-03 16:08:14 -04:00
ip6_gre.c ip6_tunnel, ip6_gre: fix setting of DSCP on encapsulated packets 2017-07-05 14:40:27 +02:00
ip6_icmp.c ipv6: icmp: add a force_saddr param to icmp6_send() 2016-06-18 22:11:38 -07:00
ip6_input.c net: vrf: ipv6 support for local traffic to local addresses 2016-06-08 00:25:38 -07:00
ip6_offload.c ipv6: Fix leak in ipv6_gso_segment(). 2017-06-14 15:05:52 +02:00
ip6_offload.h udp: Add GRO functions to UDP socket 2016-04-07 16:53:29 -04:00
ip6_output.c ipv6: release dst on error in ip6_dst_lookup_tail 2017-07-05 14:40:13 +02:00
ip6_tunnel.c ip6_tunnel, ip6_gre: fix setting of DSCP on encapsulated packets 2017-07-05 14:40:27 +02:00
ip6_udp_tunnel.c ip6_udp_tunnel: remove unused IPCB related codes 2016-11-02 15:18:36 -04:00
ip6_vti.c vti6: return GRE_KEY for vti6 2017-03-22 12:43:31 +01:00
ip6mr.c ip6mr: fix notification device destruction 2017-05-03 08:36:36 -07:00
ipcomp6.c ipv6: White-space cleansing : Structure layouts 2014-08-24 22:37:52 -07:00
ipv6_sockglue.c ipv6: fix a potential deadlock in do_ipv6_setsockopt() 2016-10-21 11:29:02 -04:00
Kconfig fou: fix IPv6 Kconfig options 2016-05-31 14:07:49 -07:00
Makefile Merge branch 'stable-4.8' of git://git.infradead.org/users/pcmoore/selinux into next 2016-07-07 10:15:34 +10:00
mcast.c igmp, mld: Fix memory leak in igmpv3/mld_del_delrec() 2017-02-18 15:11:43 +01:00
mcast_snoop.c net: fix wrong skb_get() usage / crash in IGMP/MLD parsing code 2015-08-13 17:08:39 -07:00
mip6.c ipv6: use ktime_t for internal timestamps 2015-10-05 03:16:47 -07:00
ndisc.c net: l3mdev: remove redundant calls 2016-09-10 23:12:52 -07:00
netfilter.c ipv6: Pass struct net into ip6_route_me_harder 2015-09-29 20:21:32 +02:00
output_core.c ipv6: Prevent overrun when parsing v6 header options 2017-06-07 12:07:44 +02:00
ping.c net: ping: do not abuse udp_poll() 2017-06-14 15:05:52 +02:00
proc.c proc: snmp6: Use correct type in memset 2017-07-05 14:40:15 +02:00
protocol.c net: Export inet_offloads and inet6_offloads 2014-09-19 17:15:31 -04:00
raw.c net: ping: do not abuse udp_poll() 2017-06-14 15:05:52 +02:00
reassembly.c ipv6: do not increment mac header when it's unset 2016-10-23 17:38:58 -04:00
route.c net: ipv6: Compare lwstate in detecting duplicate nexthops 2017-07-21 07:42:19 +02:00
sit.c sit: fix a double free on error path 2017-02-18 15:11:43 +01:00
syncookies.c net: rename NET_{ADD|INC}_STATS_BH() 2016-04-27 22:48:24 -04:00
sysctl_net_ipv6.c calipso: Add a label cache. 2016-06-27 15:06:17 -04:00
tcp_ipv6.c ipv6: Handle IPv4-mapped src to in6addr_any dst. 2017-06-17 06:41:49 +02:00
tcpv6_offload.c tcp: cleanup static functions 2015-02-28 16:56:51 -05:00
tunnel6.c ipv6: fix tunnel error handling 2015-11-03 10:52:13 -05:00
udp.c ipv6: Handle IPv4-mapped src to in6addr_any dst. 2017-06-17 06:41:49 +02:00
udp_impl.h udplite: call proper backlog handlers 2016-11-24 15:32:14 -05:00
udp_offload.c ipv6: Check ip6_find_1stfragopt() return value properly. 2017-06-07 12:07:44 +02:00
udplite.c udplite: call proper backlog handlers 2016-11-24 15:32:14 -05:00
xfrm6_input.c vti6: fix input path 2016-09-21 10:09:14 +02:00
xfrm6_mode_beet.c xfrm: simplify xfrm_address_t use 2015-03-31 13:58:35 -04:00
xfrm6_mode_ro.c ipv6: xfrm: Handle errors reported by xfrm6_find_1stfragopt() 2017-06-14 15:05:51 +02:00
xfrm6_mode_transport.c ipv6: xfrm: Handle errors reported by xfrm6_find_1stfragopt() 2017-06-14 15:05:51 +02:00
xfrm6_mode_tunnel.c ipv6: update skb->csum when CE mark is propagated 2016-01-15 15:07:23 -05:00
xfrm6_output.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-10-24 06:54:12 -07:00
xfrm6_policy.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-09-12 15:52:44 -07:00
xfrm6_protocol.c xfrm6: Properly handle unsupported protocols 2014-05-06 07:08:38 +02:00
xfrm6_state.c ipv6: White-space cleansing : Line Layouts 2014-08-24 22:37:52 -07:00
xfrm6_tunnel.c vti6: fix input path 2016-09-21 10:09:14 +02:00