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Diffstat (limited to 'net/sunrpc/rpcb_clnt.c')
-rw-r--r--net/sunrpc/rpcb_clnt.c56
1 files changed, 3 insertions, 53 deletions
diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
index dac219a56ae1..63ec116b4dd4 100644
--- a/net/sunrpc/rpcb_clnt.c
+++ b/net/sunrpc/rpcb_clnt.c
@@ -211,8 +211,9 @@ static int rpcb_create_local(void)
211 */ 211 */
212 clnt4 = rpc_bind_new_program(clnt, &rpcb_program, RPCBVERS_4); 212 clnt4 = rpc_bind_new_program(clnt, &rpcb_program, RPCBVERS_4);
213 if (IS_ERR(clnt4)) { 213 if (IS_ERR(clnt4)) {
214 dprintk("RPC: failed to create local rpcbind v4 " 214 dprintk("RPC: failed to bind second program to "
215 "cleint (errno %ld).\n", PTR_ERR(clnt4)); 215 "rpcbind v4 client (errno %ld).\n",
216 PTR_ERR(clnt4));
216 clnt4 = NULL; 217 clnt4 = NULL;
217 } 218 }
218 219
@@ -475,57 +476,6 @@ int rpcb_v4_register(const u32 program, const u32 version,
475 return -EAFNOSUPPORT; 476 return -EAFNOSUPPORT;
476} 477}
477 478
478/**
479 * rpcb_getport_sync - obtain the port for an RPC service on a given host
480 * @sin: address of remote peer
481 * @prog: RPC program number to bind
482 * @vers: RPC version number to bind
483 * @prot: transport protocol to use to make this request
484 *
485 * Return value is the requested advertised port number,
486 * or a negative errno value.
487 *
488 * Called from outside the RPC client in a synchronous task context.
489 * Uses default timeout parameters specified by underlying transport.
490 *
491 * XXX: Needs to support IPv6
492 */
493int rpcb_getport_sync(struct sockaddr_in *sin, u32 prog, u32 vers, int prot)
494{
495 struct rpcbind_args map = {
496 .r_prog = prog,
497 .r_vers = vers,
498 .r_prot = prot,
499 .r_port = 0,
500 };
501 struct rpc_message msg = {
502 .rpc_proc = &rpcb_procedures2[RPCBPROC_GETPORT],
503 .rpc_argp = &map,
504 .rpc_resp = &map,
505 };
506 struct rpc_clnt *rpcb_clnt;
507 int status;
508
509 dprintk("RPC: %s(%pI4, %u, %u, %d)\n",
510 __func__, &sin->sin_addr.s_addr, prog, vers, prot);
511
512 rpcb_clnt = rpcb_create(NULL, (struct sockaddr *)sin,
513 sizeof(*sin), prot, RPCBVERS_2);
514 if (IS_ERR(rpcb_clnt))
515 return PTR_ERR(rpcb_clnt);
516
517 status = rpc_call_sync(rpcb_clnt, &msg, 0);
518 rpc_shutdown_client(rpcb_clnt);
519
520 if (status >= 0) {
521 if (map.r_port != 0)
522 return map.r_port;
523 status = -EACCES;
524 }
525 return status;
526}
527EXPORT_SYMBOL_GPL(rpcb_getport_sync);
528
529static struct rpc_task *rpcb_call_async(struct rpc_clnt *rpcb_clnt, struct rpcbind_args *map, struct rpc_procinfo *proc) 479static struct rpc_task *rpcb_call_async(struct rpc_clnt *rpcb_clnt, struct rpcbind_args *map, struct rpc_procinfo *proc)
530{ 480{
531 struct rpc_message msg = { 481 struct rpc_message msg = {