SUNRPC client: add interface for binding to a local address

In addition to binding to a local privileged port the NFS client should
allow binding to a specific local address. This is used by the server
for callbacks. The patch adds the necessary interface.

Signed-off-by: Frank van Maarseveen <frankvm@frankvm.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

2 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index c1b37972b0d5..c0d9d14983b3 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -98,6 +98,7 @@ struct rpc_create_args {
         int                     protocol;
         struct sockaddr         *address;
         size_t                  addrsize;
+        struct sockaddr         *saddress;
         struct rpc_timeout      *timeout;
         char                    *servername;
         struct rpc_program      *program;
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index ea828b09e4ad..d11cedd14f0f 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -198,6 +198,7 @@ struct rpc_xprt {
 
 struct rpc_xprtsock_create {
         int                     proto;          /* IPPROTO_UDP or IPPROTO_TCP */
+        struct sockaddr *       srcaddr;        /* optional local address */
         struct sockaddr *       dstaddr;        /* remote peer address */
         size_t                  addrlen;
         struct rpc_timeout *    timeout;        /* optional timeout parameters */