SUNRPC: introduce rpcbind: replacement for in-kernel portmapper

Introduce a replacement for the in-kernel portmapper client that supports
all 3 versions of the rpcbind protocol.  This code is not used yet.

Original code by Groupe Bull updated for the latest kernel, with multiple
bug fixes.

Note that rpcb_clnt.c does not yet support registering via versions 3 and
4 of the rpcbind protocol.  That is planned for a later patch.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 745afc1d3068..fa89ce6ce076 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -152,6 +152,7 @@ struct rpc_xprt {
         unsigned long           state;          /* transport state */
         unsigned char           shutdown   : 1, /* being shut down */
                                 resvport   : 1; /* use a reserved port */
+        unsigned int            bind_index;     /* bind function index */
 
         /*
          * Connection of transports