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linux/net/sunrpc/Kconfig

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fs/Kconfig: move sunrpc out Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2009-01-22 11:11:56 +03:00
kernel: conditionally support non-root users, groups and capabilities There are a lot of embedded systems that run most or all of their functionality in init, running as root:root. For these systems, supporting multiple users is not necessary. This patch adds a new symbol, CONFIG_MULTIUSER, that makes support for non-root users, non-root groups, and capabilities optional. It is enabled under CONFIG_EXPERT menu. When this symbol is not defined, UID and GID are zero in any possible case and processes always have all capabilities. The following syscalls are compiled out: setuid, setregid, setgid, setreuid, setresuid, getresuid, setresgid, getresgid, setgroups, getgroups, setfsuid, setfsgid, capget, capset. Also, groups.c is compiled out completely. In kernel/capability.c, capable function was moved in order to avoid adding two ifdef blocks. This change saves about 25 KB on a defconfig build. The most minimal kernels have total text sizes in the high hundreds of kB rather than low MB. (The 25k goes down a bit with allnoconfig, but not that much. The kernel was booted in Qemu. All the common functionalities work. Adding users/groups is not possible, failing with -ENOSYS. Bloat-o-meter output: add/remove: 7/87 grow/shrink: 19/397 up/down: 1675/-26325 (-24650) [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Iulia Manda <iulia.manda21@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-15 16:16:41 -07:00
fs/Kconfig: move sunrpc out Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2009-01-22 11:11:56 +03:00
SUNRPC: Load GSS kernel module by OID The current GSS mech switch can find and load GSS pseudoflavor modules by name ("krb5") or pseudoflavor number ("390003"), but cannot find GSS modules by GSS tuple: [ "1.2.840.113554.1.2.2", GSS_C_QOP_DEFAULT, RPC_GSS_SVC_NONE ] This is important when dealing with a SECINFO request. A SECINFO reply contains a list of flavors the server supports for the requested export, but GSS flavors also have a GSS tuple that maps to a pseudoflavor (like 390003 for krb5). If the GSS module that supports the OID in the tuple is not loaded, our client is not able to load that module dynamically to support that pseudoflavor. Add a way for the GSS mech switch to load GSS pseudoflavor support by OID before searching for the pseudoflavor that matches the OID and service. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-03-16 15:54:52 -04:00
kernel: conditionally support non-root users, groups and capabilities There are a lot of embedded systems that run most or all of their functionality in init, running as root:root. For these systems, supporting multiple users is not necessary. This patch adds a new symbol, CONFIG_MULTIUSER, that makes support for non-root users, non-root groups, and capabilities optional. It is enabled under CONFIG_EXPERT menu. When this symbol is not defined, UID and GID are zero in any possible case and processes always have all capabilities. The following syscalls are compiled out: setuid, setregid, setgid, setreuid, setresuid, getresuid, setresgid, getresgid, setgroups, getgroups, setfsuid, setfsgid, capget, capset. Also, groups.c is compiled out completely. In kernel/capability.c, capable function was moved in order to avoid adding two ifdef blocks. This change saves about 25 KB on a defconfig build. The most minimal kernels have total text sizes in the high hundreds of kB rather than low MB. (The 25k goes down a bit with allnoconfig, but not that much. The kernel was booted in Qemu. All the common functionalities work. Adding users/groups is not possible, failing with -ENOSYS. Bloat-o-meter output: add/remove: 7/87 grow/shrink: 19/397 up/down: 1675/-26325 (-24650) [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Iulia Manda <iulia.manda21@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-15 16:16:41 -07:00
fs/Kconfig: move sunrpc out Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2009-01-22 11:11:56 +03:00
SUNRPC: sunrpc should not explicitly depend on NFS config options Change explicit references to CONFIG_NFS_V4_1 to implicit ones Get rid of the unnecessary defines in backchannel_rqst.c and bc_svc.c: the Makefile takes care of those dependency. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-07-13 19:20:49 -04:00
nfs: enable swap on NFS Implement the new swapfile a_ops for NFS and hook up ->direct_IO. This will set the NFS socket to SOCK_MEMALLOC and run socket reconnect under PF_MEMALLOC as well as reset SOCK_MEMALLOC before engaging the protocol ->connect() method. PF_MEMALLOC should allow the allocation of struct socket and related objects and the early (re)setting of SOCK_MEMALLOC should allow us to receive the packets required for the TCP connection buildup. [jlayton@redhat.com: Restore PF_MEMALLOC task flags in all cases] [dfeng@redhat.com: Fix handling of multiple swap files] [a.p.zijlstra@chello.nl: Original patch] Signed-off-by: Mel Gorman <mgorman@suse.de> Acked-by: Rik van Riel <riel@redhat.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: David S. Miller <davem@davemloft.net> Cc: Eric B Munson <emunson@mgebm.net> Cc: Eric Paris <eparis@redhat.com> Cc: James Morris <jmorris@namei.org> Cc: Mel Gorman <mgorman@suse.de> Cc: Mike Christie <michaelc@cs.wisc.edu> Cc: Neil Brown <neilb@suse.de> Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: Xiaotian Feng <dfeng@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-31 16:45:12 -07:00
fs/Kconfig: move sunrpc out Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2009-01-22 11:11:56 +03:00
SUNRPC: Fix the SUNRPC Kerberos V RPCSEC_GSS module dependencies Since kernel 2.6.35, the SUNRPC Kerberos support has had an implicit dependency on a number of additional crypto modules. The following patch makes that dependency explicit. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-04-15 12:58:56 -04:00
NFS: Fix the selection of security flavours in Kconfig Randy Dunlap reports: ERROR: "svc_gss_principal" [fs/nfs/nfs.ko] undefined! because in fs/nfs/Kconfig, NFS_V4 selects RPCSEC_GSS_KRB5 and/or in fs/nfsd/Kconfig, NFSD_V4 selects RPCSEC_GSS_KRB5. RPCSEC_GSS_KRB5 does 5 selects, but none of these is enforced/followed by the fs/nfs[d]/Kconfig configs: select SUNRPC_GSS select CRYPTO select CRYPTO_MD5 select CRYPTO_DES select CRYPTO_CBC Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: J. Bruce Fields <bfields@fieldses.org> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-17 17:42:45 -04:00
SUNRPC: Fix the SUNRPC Kerberos V RPCSEC_GSS module dependencies Since kernel 2.6.35, the SUNRPC Kerberos support has had an implicit dependency on a number of additional crypto modules. The following patch makes that dependency explicit. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-04-15 12:58:56 -04:00
NFS: Fix the selection of security flavours in Kconfig Randy Dunlap reports: ERROR: "svc_gss_principal" [fs/nfs/nfs.ko] undefined! because in fs/nfs/Kconfig, NFS_V4 selects RPCSEC_GSS_KRB5 and/or in fs/nfsd/Kconfig, NFSD_V4 selects RPCSEC_GSS_KRB5. RPCSEC_GSS_KRB5 does 5 selects, but none of these is enforced/followed by the fs/nfs[d]/Kconfig configs: select SUNRPC_GSS select CRYPTO select CRYPTO_MD5 select CRYPTO_DES select CRYPTO_CBC Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: J. Bruce Fields <bfields@fieldses.org> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-17 17:42:45 -04:00
fs/Kconfig: move sunrpc out Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2009-01-22 11:11:56 +03:00
NFS: Fix the selection of security flavours in Kconfig Randy Dunlap reports: ERROR: "svc_gss_principal" [fs/nfs/nfs.ko] undefined! because in fs/nfs/Kconfig, NFS_V4 selects RPCSEC_GSS_KRB5 and/or in fs/nfsd/Kconfig, NFSD_V4 selects RPCSEC_GSS_KRB5. RPCSEC_GSS_KRB5 does 5 selects, but none of these is enforced/followed by the fs/nfs[d]/Kconfig configs: select SUNRPC_GSS select CRYPTO select CRYPTO_MD5 select CRYPTO_DES select CRYPTO_CBC Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: J. Bruce Fields <bfields@fieldses.org> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-17 17:42:45 -04:00
SUNRPC/NFS: Add Kbuild dependencies for NFS_DEBUG/RPC_DEBUG This allows us to turn on/off the dprintk() debugging interfaces for those distributions that don't ship the 'rpcdebug' utility. It also allows us to add Kbuild dependencies. Specifically, we already know that dprintk() in general relies on CONFIG_SYSCTL. Now it turns out that the NFS dprintks depend on CONFIG_CRC32 after we added support for the filehandle hash. Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-03-18 14:07:42 -04:00
sunrpc: add debugfs file for displaying client rpc_task queue It's possible to get a dump of the RPC task queue by writing a value to /proc/sys/sunrpc/rpc_debug. If you write any value to that file, you get a dump of the RPC client task list into the log buffer. This is a rather inconvenient interface however, and makes it hard to get immediate info about the task queue. Add a new directory hierarchy under debugfs: sunrpc/ rpc_clnt/ <clientid>/ Within each clientid directory we create a new "tasks" file that will dump info similar to what shows up in the log buffer, but with a few small differences -- we avoid printing raw kernel addresses in favor of symbolic names and the XID is also displayed. Signed-off-by: Jeff Layton <jlayton@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-11-26 14:44:43 -05:00
SUNRPC/NFS: Add Kbuild dependencies for NFS_DEBUG/RPC_DEBUG This allows us to turn on/off the dprintk() debugging interfaces for those distributions that don't ship the 'rpcdebug' utility. It also allows us to add Kbuild dependencies. Specifically, we already know that dprintk() in general relies on CONFIG_SYSCTL. Now it turns out that the NFS dprintks depend on CONFIG_CRC32 after we added support for the filehandle hash. Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-03-18 14:07:42 -04:00
xprtrdma: add separate Kconfig options for NFSoRDMA client and server support There are two entirely separate modules under xprtrdma/ and there's no reason that enabling one should automatically enable the other. Add config options for each one so they can be enabled/disabled separately. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-03-18 19:45:47 -04:00
rpcrdma: Merge svcrdma and xprtrdma modules into one Bi-directional RPC support means code in svcrdma.ko invokes a bit of code in xprtrdma.ko, and vice versa. To avoid loader/linker loops, merge the server and client side modules together into a single module. When backchannel capabilities are added, the combined module will register all needed transport capabilities so that Upper Layer consumers automatically have everything needed to create a bi-directional transport connection. Module aliases are added for backwards compatibility with user space, which still may expect svcrdma.ko or xprtrdma.ko to be present. This commit reverts commit 2e8c12e1b765 ("xprtrdma: add separate Kconfig options for NFSoRDMA client and server support") and provides a single CONFIG option for enabling the new module. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-06-04 11:21:42 -04:00
xprtrdma: add separate Kconfig options for NFSoRDMA client and server support There are two entirely separate modules under xprtrdma/ and there's no reason that enabling one should automatically enable the other. Add config options for each one so they can be enabled/disabled separately. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-03-18 19:45:47 -04:00
svcrdma: Introduce local rdma_rw API helpers The plan is to replace the local bespoke code that constructs and posts RDMA Read and Write Work Requests with calls to the rdma_rw API. This shares code with other RDMA-enabled ULPs that manages the gory details of buffer registration and posting Work Requests. Some design notes: o The structure of RPC-over-RDMA transport headers is flexible, allowing multiple segments per Reply with arbitrary alignment, each with a unique R_key. Write and Send WRs continue to be built and posted in separate code paths. However, one whole chunk (with one or more RDMA segments apiece) gets exactly one ib_post_send and one work completion. o svc_xprt reference counting is modified, since a chain of rdma_rw_ctx structs generates one completion, no matter how many Write WRs are posted. o The current code builds the transport header as it is construct- ing Write WRs. I've replaced that with marshaling of transport header data items in a separate step. This is because the exact structure of client-provided segments may not align with the components of the server's reply xdr_buf, or the pages in the page list. Thus parts of each client-provided segment may be written at different points in the send path. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2017-04-09 13:06:16 -04:00
xprtrdma: add separate Kconfig options for NFSoRDMA client and server support There are two entirely separate modules under xprtrdma/ and there's no reason that enabling one should automatically enable the other. Add config options for each one so they can be enabled/disabled separately. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-03-18 19:45:47 -04:00
rpcrdma: Merge svcrdma and xprtrdma modules into one Bi-directional RPC support means code in svcrdma.ko invokes a bit of code in xprtrdma.ko, and vice versa. To avoid loader/linker loops, merge the server and client side modules together into a single module. When backchannel capabilities are added, the combined module will register all needed transport capabilities so that Upper Layer consumers automatically have everything needed to create a bi-directional transport connection. Module aliases are added for backwards compatibility with user space, which still may expect svcrdma.ko or xprtrdma.ko to be present. This commit reverts commit 2e8c12e1b765 ("xprtrdma: add separate Kconfig options for NFSoRDMA client and server support") and provides a single CONFIG option for enabling the new module. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-06-04 11:21:42 -04:00
xprtrdma: add separate Kconfig options for NFSoRDMA client and server support There are two entirely separate modules under xprtrdma/ and there's no reason that enabling one should automatically enable the other. Add config options for each one so they can be enabled/disabled separately. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-03-18 19:45:47 -04:00
rpcrdma: Merge svcrdma and xprtrdma modules into one Bi-directional RPC support means code in svcrdma.ko invokes a bit of code in xprtrdma.ko, and vice versa. To avoid loader/linker loops, merge the server and client side modules together into a single module. When backchannel capabilities are added, the combined module will register all needed transport capabilities so that Upper Layer consumers automatically have everything needed to create a bi-directional transport connection. Module aliases are added for backwards compatibility with user space, which still may expect svcrdma.ko or xprtrdma.ko to be present. This commit reverts commit 2e8c12e1b765 ("xprtrdma: add separate Kconfig options for NFSoRDMA client and server support") and provides a single CONFIG option for enabling the new module. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-06-04 11:21:42 -04:00
xprtrdma: add separate Kconfig options for NFSoRDMA client and server support There are two entirely separate modules under xprtrdma/ and there's no reason that enabling one should automatically enable the other. Add config options for each one so they can be enabled/disabled separately. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-03-18 19:45:47 -04:00
rpcrdma: Merge svcrdma and xprtrdma modules into one Bi-directional RPC support means code in svcrdma.ko invokes a bit of code in xprtrdma.ko, and vice versa. To avoid loader/linker loops, merge the server and client side modules together into a single module. When backchannel capabilities are added, the combined module will register all needed transport capabilities so that Upper Layer consumers automatically have everything needed to create a bi-directional transport connection. Module aliases are added for backwards compatibility with user space, which still may expect svcrdma.ko or xprtrdma.ko to be present. This commit reverts commit 2e8c12e1b765 ("xprtrdma: add separate Kconfig options for NFSoRDMA client and server support") and provides a single CONFIG option for enabling the new module. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-06-04 11:21:42 -04:00