linux_dsm_epyc7002/net/sunrpc
NeilBrown b8eace7d3b SUNRPC: prevent port reuse on transports which don't request it.
[ Upstream commit bc1c56e9bbe92766d017efb5f0a0c71f80da5570 ]

If an RPC client is created without RPC_CLNT_CREATE_REUSEPORT, it should
not reuse the source port when a TCP connection is re-established.
This is currently implemented by preventing the source port being
recorded after a successful connection (the call to xs_set_srcport()).

However the source port is also recorded after a successful bind in xs_bind().
This may not be needed at all and certainly is not wanted when
RPC_CLNT_CREATE_REUSEPORT wasn't requested.

So avoid that assignment when xprt.reuseport is not set.

With this change, NFSv4.1 and later mounts use a different port number on
each connection.  This is helpful with some firewalls which don't cope
well with port reuse.

Signed-off-by: NeilBrown <neilb@suse.de>
Fixes: e6237b6feb ("NFSv4.1: Don't rebind to the same source port when reconnecting to the server")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-20 16:05:51 +02:00
..
auth_gss rpc: fix NULL dereference on kmalloc failure 2021-04-07 15:00:04 +02:00
xprtrdma SUNRPC: More fixes for backlog congestion 2021-06-03 09:00:51 +02:00
addr.c net: sunrpc: interpret the return value of kstrtou32 correctly 2021-01-19 18:27:33 +01:00
auth_null.c
auth_unix.c
auth.c sunrpc: add missing newline when printing parameter 'auth_hashtable_size' by sysfs 2020-06-11 13:33:48 -04:00
backchannel_rqst.c The one new feature this time, from Anna Schumaker, is READ_PLUS, which 2020-10-22 09:44:27 -07:00
cache.c sunrpc: raise kernel RPC channel buffer size 2020-10-20 13:21:30 -04:00
clnt.c SUNRPC in case of backlog, hand free slots directly to waiting task 2021-06-03 09:00:37 +02:00
debugfs.c net: sunrpc: Fix 'snprintf' return value check in 'do_xprt_debugfs' 2020-12-30 11:53:30 +01:00
Kconfig SUNRPC: remove RC4-HMAC-MD5 support from KerberosV 2020-09-11 14:39:15 +10:00
Makefile
netns.h
rpc_pipe.c sunrpc: destroy rpc_inode_cachep after unregister_filesystem 2020-07-17 13:12:44 -04:00
rpcb_clnt.c SUNRPC: Replace rpcbind dprintk call sites with tracepoints 2020-09-21 10:21:09 -04:00
sched.c SUNRPC: Should wake up the privileged task firstly. 2021-07-14 16:55:42 +02:00
socklib.c skb_copy_and_csum_bits(): don't bother with the last argument 2020-08-20 15:45:13 -04:00
socklib.h SUNRPC: Refactor xs_sendpages() 2020-03-16 12:04:33 -04:00
stats.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
sunrpc_syms.c sunrpc: check that domain table is empty at module unload. 2020-05-28 18:15:00 -04:00
sunrpc.h Replace HTTP links with HTTPS ones: NFS, SUNRPC, and LOCKD clients 2020-09-21 10:21:10 -04:00
svc_xprt.c NFSD: Repair misuse of sv_lock in 5.10.16-rt30. 2021-03-25 09:04:08 +01:00
svc.c sunrpc: fix refcount leak for rpc auth modules 2021-03-25 09:04:08 +01:00
svcauth_unix.c sunrpc: Remove unused function ip_map_update 2020-05-06 16:00:11 -04:00
svcauth.c sunrpc: check that domain table is empty at module unload. 2020-05-28 18:15:00 -04:00
svcsock.c SUNRPC: fix ternary sign expansion bug in tracing 2021-05-19 10:13:04 +02:00
sysctl.c net/sunrpc: fix useless comparison in proc_do_xprt() 2020-11-08 16:28:25 -05:00
timer.c
xdr.c The one new feature this time, from Anna Schumaker, is READ_PLUS, which 2020-10-22 09:44:27 -07:00
xprt.c SUNRPC: More fixes for backlog congestion 2021-06-03 09:00:51 +02:00
xprtmultipath.c SUNRPC: Optimise transport balancing code 2019-07-18 14:43:52 -04:00
xprtsock.c SUNRPC: prevent port reuse on transports which don't request it. 2021-07-20 16:05:51 +02:00