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| author |   Chuck Lever <chuck.lever@oracle.com> | 2006-08-22 20:06:17 -0400 |
|---|---|---|
| committer |   Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-09-22 23:24:45 -0400 |
| commit | ed39440a2573abc926f230267000f21fa5a87822 (patch) | |
| tree | f9b6ba1ce3a7f94fc9d3f4a3e82eea3fdcc965a6 /net | |
| parent | SUNRPC: Introduce transport switch callout for pluggable rpcbind (diff) | |
| download | linux-dev-ed39440a2573abc926f230267000f21fa5a87822.tar.xz linux-dev-ed39440a2573abc926f230267000f21fa5a87822.zip | |
SUNRPC: create API for getting remote peer address
Provide an API for retrieving the remote peer address without allowing
direct access to the rpc_xprt struct.
Test-plan:
Compile kernel with CONFIG_NFS enabled.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/sunrpc/clnt.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index d003c2f5688f..94768cf5fd5b 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -533,6 +533,27 @@ rpc_call_setup(struct rpc_task *task, struct rpc_message *msg, int flags) task->tk_action = rpc_exit_task; } +/** + * rpc_peeraddr - extract remote peer address from clnt's xprt + * @clnt: RPC client structure + * @buf: target buffer + * @size: length of target buffer + * + * Returns the number of bytes that are actually in the stored address. + */ +size_t rpc_peeraddr(struct rpc_clnt *clnt, struct sockaddr *buf, size_t bufsize) +{ + size_t bytes; + struct rpc_xprt *xprt = clnt->cl_xprt; + + bytes = sizeof(xprt->addr); + if (bytes > bufsize) + bytes = bufsize; + memcpy(buf, &clnt->cl_xprt->addr, bytes); + return sizeof(xprt->addr); +} +EXPORT_SYMBOL(rpc_peeraddr); + void rpc_setbufsize(struct rpc_clnt *clnt, unsigned int sndsize, unsigned int rcvsize) { |