Chuck Lever 2e738fdce2 SUNRPC: Add API to acquire source address ... NFSv4.0 clients must send endpoint information for their callback service to NFSv4.0 servers during their first contact with a server. Traditionally on Linux, user space provides the callback endpoint IP address via the "clientaddr=" mount option. During an NFSv4 migration event, it is possible that an FSID may be migrated to a destination server that is accessible via a different source IP address than the source server was. The client must update callback endpoint information on the destination server so that it can maintain leases and allow delegation. Without a new "clientaddr=" option from user space, however, the kernel itself must construct an appropriate IP address for the callback update. Provide an API in the RPC client for upper layer RPC consumers to acquire a source address for a remote. The mechanism used by the mount.nfs command is copied: set up a connected UDP socket to the designated remote, then scrape the source address off the socket. We are careful to select the correct network namespace when setting up the temporary UDP socket. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>		2012-03-02 15:36:53 -05:00
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auth_gss	SUNRPC: Use RCU to dereference the rpc_clnt.cl_xprt field	2012-03-02 15:36:38 -05:00
xprtrdma	SUNRPC: create svc_xprt in proper network namespace	2011-12-06 16:20:42 -05:00
addr.c	SUNRPC: parametrize rpc_uaddr2sockaddr() by network context	2012-01-31 19:28:12 -05:00
auth_generic.c	SUNRPC: Fix machine creds in generic_create_cred and generic_match	2012-01-23 14:03:46 -08:00
auth_null.c
auth_unix.c	NFS/sunrpc: don't use a credential with extra groups.	2011-10-25 11:20:58 +02:00
auth.c	net: Remove unnecessary semicolons	2011-06-05 14:33:39 -07:00
backchannel_rqst.c	net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules	2011-10-31 19:30:30 -04:00
bc_svc.c	SUNRPC: sunrpc should not explicitly depend on NFS config options	2011-07-15 09:12:23 -04:00
cache.c	SUNRPC: generic cache register routines removed	2012-01-31 19:28:16 -05:00
clnt.c	SUNRPC: Add API to acquire source address	2012-03-02 15:36:53 -05:00
Kconfig	SUNRPC: sunrpc should not explicitly depend on NFS config options	2011-07-15 09:12:23 -04:00
Makefile	SUNRPC: sunrpc should not explicitly depend on NFS config options	2011-07-15 09:12:23 -04:00
netns.h	SUNRPC: create GSS auth cache per network namespace	2012-01-31 19:28:15 -05:00
rpc_pipe.c	SUNRPC: Move clnt->cl_server into struct rpc_xprt	2012-03-02 15:36:41 -05:00
rpcb_clnt.c	SUNRPC: Move clnt->cl_server into struct rpc_xprt	2012-03-02 15:36:41 -05:00
sched.c	SUNRPC: Ensure that we can trace waitqueues when !defined(CONFIG_SYSCTL)	2012-02-15 00:19:51 -05:00
socklib.c	net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules	2011-10-31 19:30:30 -04:00
stats.c	SUNRPC: Use RCU to dereference the rpc_clnt.cl_xprt field	2012-03-02 15:36:38 -05:00
sunrpc_syms.c	SUNRPC: init per-net rpcbind spinlock	2012-02-16 14:00:48 -05:00
sunrpc.h	SUNRPC: subscribe RPC clients to pipefs notifications	2012-01-31 18:20:25 -05:00
svc_xprt.c	SUNRPC: service destruction in network namespace context	2012-02-15 00:19:45 -05:00
svc.c	Lockd: per-net up and down routines introduced	2012-02-15 00:19:47 -05:00
svcauth_unix.c	SUNRPC: ip map cache per network namespace cleanup	2012-01-31 19:28:16 -05:00
svcauth.c
svcsock.c	SUNRPC: fixup for namespace changes	2012-01-31 19:28:22 -05:00
sysctl.c	SUNRPC: make SUNPRC clients list per network namespace context	2012-01-31 18:20:25 -05:00
timer.c
xdr.c	NFSv4: include bitmap in nfsv4 get acl data	2012-01-05 10:42:42 -05:00
xprt.c	SUNRPC: Move clnt->cl_server into struct rpc_xprt	2012-03-02 15:36:41 -05:00
xprtsock.c	SUNRPC: add sending,pending queue and max slot to xprt stats	2012-02-16 14:55:27 -05:00