2 * In-kernel rpcbind client supporting versions 2, 3, and 4 of the rpcbind
5 * Based on RFC 1833: "Binding Protocols for ONC RPC Version 2" and
6 * RFC 3530: "Network File System (NFS) version 4 Protocol"
8 * Original: Gilles Quillard, Bull Open Source, 2005 <gilles.quillard@bull.net>
9 * Updated: Chuck Lever, Oracle Corporation, 2007 <chuck.lever@oracle.com>
11 * Descended from net/sunrpc/pmap_clnt.c,
12 * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
15 #include <linux/module.h>
17 #include <linux/types.h>
18 #include <linux/socket.h>
20 #include <linux/in6.h>
21 #include <linux/kernel.h>
22 #include <linux/errno.h>
25 #include <linux/sunrpc/clnt.h>
26 #include <linux/sunrpc/sched.h>
27 #include <linux/sunrpc/xprtsock.h>
30 # define RPCDBG_FACILITY RPCDBG_BIND
33 #define RPCBIND_PROGRAM (100000u)
34 #define RPCBIND_PORT (111u)
36 #define RPCBVERS_2 (2u)
37 #define RPCBVERS_3 (3u)
38 #define RPCBVERS_4 (4u)
45 RPCBPROC_GETADDR = 3, /* alias for GETPORT */
48 RPCBPROC_BCAST = 5, /* alias for CALLIT */
58 #define RPCB_HIGHPROC_2 RPCBPROC_CALLIT
59 #define RPCB_HIGHPROC_3 RPCBPROC_TADDR2UADDR
60 #define RPCB_HIGHPROC_4 RPCBPROC_GETSTAT
65 * The "owner" is allowed to unset a service in the rpcbind database.
66 * We always use the following (arbitrary) fixed string.
68 #define RPCB_OWNER_STRING "rpcb"
69 #define RPCB_MAXOWNERLEN sizeof(RPCB_OWNER_STRING)
71 static void rpcb_getport_done(struct rpc_task *, void *);
72 static void rpcb_map_release(void *data);
73 static struct rpc_program rpcb_program;
76 struct rpc_xprt * r_xprt;
81 unsigned short r_port;
89 static struct rpc_procinfo rpcb_procedures2[];
90 static struct rpc_procinfo rpcb_procedures3[];
91 static struct rpc_procinfo rpcb_procedures4[];
95 struct rpc_procinfo * rpc_proc;
98 static struct rpcb_info rpcb_next_version[];
99 static struct rpcb_info rpcb_next_version6[];
101 static const struct rpc_call_ops rpcb_getport_ops = {
102 .rpc_call_done = rpcb_getport_done,
103 .rpc_release = rpcb_map_release,
106 static void rpcb_wake_rpcbind_waiters(struct rpc_xprt *xprt, int status)
108 xprt_clear_binding(xprt);
109 rpc_wake_up_status(&xprt->binding, status);
112 static void rpcb_map_release(void *data)
114 struct rpcbind_args *map = data;
116 rpcb_wake_rpcbind_waiters(map->r_xprt, map->r_status);
117 xprt_put(map->r_xprt);
121 static const struct sockaddr_in rpcb_inaddr_loopback = {
122 .sin_family = AF_INET,
123 .sin_addr.s_addr = htonl(INADDR_LOOPBACK),
124 .sin_port = htons(RPCBIND_PORT),
127 static const struct sockaddr_in6 rpcb_in6addr_loopback = {
128 .sin6_family = AF_INET6,
129 .sin6_addr = IN6ADDR_LOOPBACK_INIT,
130 .sin6_port = htons(RPCBIND_PORT),
133 static struct rpc_clnt *rpcb_create_local(struct sockaddr *addr,
134 size_t addrlen, u32 version)
136 struct rpc_create_args args = {
137 .protocol = XPRT_TRANSPORT_UDP,
140 .servername = "localhost",
141 .program = &rpcb_program,
143 .authflavor = RPC_AUTH_UNIX,
144 .flags = RPC_CLNT_CREATE_NOPING,
147 return rpc_create(&args);
150 static struct rpc_clnt *rpcb_create(char *hostname, struct sockaddr *srvaddr,
151 size_t salen, int proto, u32 version)
153 struct rpc_create_args args = {
157 .servername = hostname,
158 .program = &rpcb_program,
160 .authflavor = RPC_AUTH_UNIX,
161 .flags = (RPC_CLNT_CREATE_NOPING |
162 RPC_CLNT_CREATE_NONPRIVPORT),
165 switch (srvaddr->sa_family) {
167 ((struct sockaddr_in *)srvaddr)->sin_port = htons(RPCBIND_PORT);
170 ((struct sockaddr_in6 *)srvaddr)->sin6_port = htons(RPCBIND_PORT);
176 return rpc_create(&args);
179 static int rpcb_register_call(struct sockaddr *addr, size_t addrlen,
180 u32 version, struct rpc_message *msg)
182 struct rpc_clnt *rpcb_clnt;
183 int result, error = 0;
185 msg->rpc_resp = &result;
187 rpcb_clnt = rpcb_create_local(addr, addrlen, version);
188 if (!IS_ERR(rpcb_clnt)) {
189 error = rpc_call_sync(rpcb_clnt, msg, 0);
190 rpc_shutdown_client(rpcb_clnt);
192 error = PTR_ERR(rpcb_clnt);
195 printk(KERN_WARNING "RPC: failed to contact local rpcbind "
196 "server (errno %d).\n", -error);
201 dprintk("RPC: registration failed\n");
205 dprintk("RPC: registration succeeded\n");
210 * rpcb_register - set or unset a port registration with the local rpcbind svc
211 * @prog: RPC program number to bind
212 * @vers: RPC version number to bind
213 * @prot: transport protocol to register
214 * @port: port value to register
216 * Returns zero if the registration request was dispatched successfully
217 * and the rpcbind daemon returned success. Otherwise, returns an errno
218 * value that reflects the nature of the error (request could not be
219 * dispatched, timed out, or rpcbind returned an error).
221 * RPC services invoke this function to advertise their contact
222 * information via the system's rpcbind daemon. RPC services
223 * invoke this function once for each [program, version, transport]
224 * tuple they wish to advertise.
226 * Callers may also unregister RPC services that are no longer
227 * available by setting the passed-in port to zero. This removes
228 * all registered transports for [program, version] from the local
231 * This function uses rpcbind protocol version 2 to contact the
232 * local rpcbind daemon.
234 * Registration works over both AF_INET and AF_INET6, and services
235 * registered via this function are advertised as available for any
236 * address. If the local rpcbind daemon is listening on AF_INET6,
237 * services registered via this function will be advertised on
238 * IN6ADDR_ANY (ie available for all AF_INET and AF_INET6
241 int rpcb_register(u32 prog, u32 vers, int prot, unsigned short port)
243 struct rpcbind_args map = {
249 struct rpc_message msg = {
253 dprintk("RPC: %sregistering (%u, %u, %d, %u) with local "
254 "rpcbind\n", (port ? "" : "un"),
255 prog, vers, prot, port);
257 msg.rpc_proc = &rpcb_procedures2[RPCBPROC_UNSET];
259 msg.rpc_proc = &rpcb_procedures2[RPCBPROC_SET];
261 return rpcb_register_call((struct sockaddr *)&rpcb_inaddr_loopback,
262 sizeof(rpcb_inaddr_loopback),
267 * Fill in AF_INET family-specific arguments to register
269 static int rpcb_register_netid4(struct sockaddr_in *address_to_register,
270 struct rpc_message *msg)
272 struct rpcbind_args *map = msg->rpc_argp;
273 unsigned short port = ntohs(address_to_register->sin_port);
276 /* Construct AF_INET universal address */
277 snprintf(buf, sizeof(buf),
279 NIPQUAD(address_to_register->sin_addr.s_addr),
280 port >> 8, port & 0xff);
283 dprintk("RPC: %sregistering [%u, %u, %s, '%s'] with "
284 "local rpcbind\n", (port ? "" : "un"),
285 map->r_prog, map->r_vers,
286 map->r_addr, map->r_netid);
288 msg->rpc_proc = &rpcb_procedures4[RPCBPROC_UNSET];
290 msg->rpc_proc = &rpcb_procedures4[RPCBPROC_SET];
292 return rpcb_register_call((struct sockaddr *)&rpcb_inaddr_loopback,
293 sizeof(rpcb_inaddr_loopback),
298 * Fill in AF_INET6 family-specific arguments to register
300 static int rpcb_register_netid6(struct sockaddr_in6 *address_to_register,
301 struct rpc_message *msg)
303 struct rpcbind_args *map = msg->rpc_argp;
304 unsigned short port = ntohs(address_to_register->sin6_port);
307 /* Construct AF_INET6 universal address */
308 if (ipv6_addr_any(&address_to_register->sin6_addr))
309 snprintf(buf, sizeof(buf), "::.%u.%u",
310 port >> 8, port & 0xff);
312 snprintf(buf, sizeof(buf), NIP6_FMT".%u.%u",
313 NIP6(address_to_register->sin6_addr),
314 port >> 8, port & 0xff);
317 dprintk("RPC: %sregistering [%u, %u, %s, '%s'] with "
318 "local rpcbind\n", (port ? "" : "un"),
319 map->r_prog, map->r_vers,
320 map->r_addr, map->r_netid);
322 msg->rpc_proc = &rpcb_procedures4[RPCBPROC_UNSET];
324 msg->rpc_proc = &rpcb_procedures4[RPCBPROC_SET];
326 return rpcb_register_call((struct sockaddr *)&rpcb_in6addr_loopback,
327 sizeof(rpcb_in6addr_loopback),
332 * rpcb_v4_register - set or unset a port registration with the local rpcbind
333 * @program: RPC program number of service to (un)register
334 * @version: RPC version number of service to (un)register
335 * @address: address family, IP address, and port to (un)register
336 * @netid: netid of transport protocol to (un)register
338 * Returns zero if the registration request was dispatched successfully
339 * and the rpcbind daemon returned success. Otherwise, returns an errno
340 * value that reflects the nature of the error (request could not be
341 * dispatched, timed out, or rpcbind returned an error).
343 * RPC services invoke this function to advertise their contact
344 * information via the system's rpcbind daemon. RPC services
345 * invoke this function once for each [program, version, address,
346 * netid] tuple they wish to advertise.
348 * Callers may also unregister RPC services that are no longer
349 * available by setting the port number in the passed-in address
350 * to zero. Callers pass a netid of "" to unregister all
351 * transport netids associated with [program, version, address].
353 * This function uses rpcbind protocol version 4 to contact the
354 * local rpcbind daemon. The local rpcbind daemon must support
355 * version 4 of the rpcbind protocol in order for these functions
356 * to register a service successfully.
358 * Supported netids include "udp" and "tcp" for UDP and TCP over
359 * IPv4, and "udp6" and "tcp6" for UDP and TCP over IPv6,
362 * The contents of @address determine the address family and the
363 * port to be registered. The usual practice is to pass INADDR_ANY
364 * as the raw address, but specifying a non-zero address is also
365 * supported by this API if the caller wishes to advertise an RPC
366 * service on a specific network interface.
368 * Note that passing in INADDR_ANY does not create the same service
369 * registration as IN6ADDR_ANY. The former advertises an RPC
370 * service on any IPv4 address, but not on IPv6. The latter
371 * advertises the service on all IPv4 and IPv6 addresses.
373 int rpcb_v4_register(const u32 program, const u32 version,
374 const struct sockaddr *address, const char *netid)
376 struct rpcbind_args map = {
380 .r_owner = RPCB_OWNER_STRING,
382 struct rpc_message msg = {
386 switch (address->sa_family) {
388 return rpcb_register_netid4((struct sockaddr_in *)address,
391 return rpcb_register_netid6((struct sockaddr_in6 *)address,
395 return -EAFNOSUPPORT;
399 * rpcb_getport_sync - obtain the port for an RPC service on a given host
400 * @sin: address of remote peer
401 * @prog: RPC program number to bind
402 * @vers: RPC version number to bind
403 * @prot: transport protocol to use to make this request
405 * Return value is the requested advertised port number,
406 * or a negative errno value.
408 * Called from outside the RPC client in a synchronous task context.
409 * Uses default timeout parameters specified by underlying transport.
411 * XXX: Needs to support IPv6
413 int rpcb_getport_sync(struct sockaddr_in *sin, u32 prog, u32 vers, int prot)
415 struct rpcbind_args map = {
421 struct rpc_message msg = {
422 .rpc_proc = &rpcb_procedures2[RPCBPROC_GETPORT],
424 .rpc_resp = &map.r_port,
426 struct rpc_clnt *rpcb_clnt;
429 dprintk("RPC: %s(" NIPQUAD_FMT ", %u, %u, %d)\n",
430 __func__, NIPQUAD(sin->sin_addr.s_addr), prog, vers, prot);
432 rpcb_clnt = rpcb_create(NULL, (struct sockaddr *)sin,
433 sizeof(*sin), prot, RPCBVERS_2);
434 if (IS_ERR(rpcb_clnt))
435 return PTR_ERR(rpcb_clnt);
437 status = rpc_call_sync(rpcb_clnt, &msg, 0);
438 rpc_shutdown_client(rpcb_clnt);
447 EXPORT_SYMBOL_GPL(rpcb_getport_sync);
449 static struct rpc_task *rpcb_call_async(struct rpc_clnt *rpcb_clnt, struct rpcbind_args *map, struct rpc_procinfo *proc)
451 struct rpc_message msg = {
454 .rpc_resp = &map->r_port,
456 struct rpc_task_setup task_setup_data = {
457 .rpc_client = rpcb_clnt,
459 .callback_ops = &rpcb_getport_ops,
460 .callback_data = map,
461 .flags = RPC_TASK_ASYNC,
464 return rpc_run_task(&task_setup_data);
468 * rpcb_getport_async - obtain the port for a given RPC service on a given host
469 * @task: task that is waiting for portmapper request
471 * This one can be called for an ongoing RPC request, and can be used in
472 * an async (rpciod) context.
474 void rpcb_getport_async(struct rpc_task *task)
476 struct rpc_clnt *clnt = task->tk_client;
477 struct rpc_procinfo *proc;
479 struct rpc_xprt *xprt = task->tk_xprt;
480 struct rpc_clnt *rpcb_clnt;
481 static struct rpcbind_args *map;
482 struct rpc_task *child;
483 struct sockaddr_storage addr;
484 struct sockaddr *sap = (struct sockaddr *)&addr;
488 dprintk("RPC: %5u %s(%s, %u, %u, %d)\n",
489 task->tk_pid, __func__,
490 clnt->cl_server, clnt->cl_prog, clnt->cl_vers, xprt->prot);
492 /* Autobind on cloned rpc clients is discouraged */
493 BUG_ON(clnt->cl_parent != clnt);
495 /* Put self on the wait queue to ensure we get notified if
496 * some other task is already attempting to bind the port */
497 rpc_sleep_on(&xprt->binding, task, NULL);
499 if (xprt_test_and_set_binding(xprt)) {
500 dprintk("RPC: %5u %s: waiting for another binder\n",
501 task->tk_pid, __func__);
505 /* Someone else may have bound if we slept */
506 if (xprt_bound(xprt)) {
508 dprintk("RPC: %5u %s: already bound\n",
509 task->tk_pid, __func__);
513 salen = rpc_peeraddr(clnt, sap, sizeof(addr));
515 /* Don't ever use rpcbind v2 for AF_INET6 requests */
516 switch (sap->sa_family) {
518 proc = rpcb_next_version[xprt->bind_index].rpc_proc;
519 bind_version = rpcb_next_version[xprt->bind_index].rpc_vers;
522 proc = rpcb_next_version6[xprt->bind_index].rpc_proc;
523 bind_version = rpcb_next_version6[xprt->bind_index].rpc_vers;
526 status = -EAFNOSUPPORT;
527 dprintk("RPC: %5u %s: bad address family\n",
528 task->tk_pid, __func__);
532 xprt->bind_index = 0;
533 status = -EPFNOSUPPORT;
534 dprintk("RPC: %5u %s: no more getport versions available\n",
535 task->tk_pid, __func__);
539 dprintk("RPC: %5u %s: trying rpcbind version %u\n",
540 task->tk_pid, __func__, bind_version);
542 rpcb_clnt = rpcb_create(clnt->cl_server, sap, salen, xprt->prot,
544 if (IS_ERR(rpcb_clnt)) {
545 status = PTR_ERR(rpcb_clnt);
546 dprintk("RPC: %5u %s: rpcb_create failed, error %ld\n",
547 task->tk_pid, __func__, PTR_ERR(rpcb_clnt));
551 map = kzalloc(sizeof(struct rpcbind_args), GFP_ATOMIC);
554 dprintk("RPC: %5u %s: no memory available\n",
555 task->tk_pid, __func__);
558 map->r_prog = clnt->cl_prog;
559 map->r_vers = clnt->cl_vers;
560 map->r_prot = xprt->prot;
562 map->r_xprt = xprt_get(xprt);
563 map->r_netid = rpc_peeraddr2str(clnt, RPC_DISPLAY_NETID);
564 map->r_addr = rpc_peeraddr2str(rpcb_clnt, RPC_DISPLAY_UNIVERSAL_ADDR);
565 map->r_owner = RPCB_OWNER_STRING; /* ignored for GETADDR */
566 map->r_status = -EIO;
568 child = rpcb_call_async(rpcb_clnt, map, proc);
569 rpc_release_client(rpcb_clnt);
571 /* rpcb_map_release() has freed the arguments */
572 dprintk("RPC: %5u %s: rpc_run_task failed\n",
573 task->tk_pid, __func__);
578 task->tk_xprt->stat.bind_count++;
582 rpcb_wake_rpcbind_waiters(xprt, status);
583 task->tk_status = status;
585 EXPORT_SYMBOL_GPL(rpcb_getport_async);
588 * Rpcbind child task calls this callback via tk_exit.
590 static void rpcb_getport_done(struct rpc_task *child, void *data)
592 struct rpcbind_args *map = data;
593 struct rpc_xprt *xprt = map->r_xprt;
594 int status = child->tk_status;
596 /* Garbage reply: retry with a lesser rpcbind version */
598 status = -EPROTONOSUPPORT;
600 /* rpcbind server doesn't support this rpcbind protocol version */
601 if (status == -EPROTONOSUPPORT)
605 /* rpcbind server not available on remote host? */
606 xprt->ops->set_port(xprt, 0);
607 } else if (map->r_port == 0) {
608 /* Requested RPC service wasn't registered on remote host */
609 xprt->ops->set_port(xprt, 0);
613 xprt->ops->set_port(xprt, map->r_port);
614 xprt_set_bound(xprt);
618 dprintk("RPC: %5u rpcb_getport_done(status %d, port %u)\n",
619 child->tk_pid, status, map->r_port);
621 map->r_status = status;
625 * XDR functions for rpcbind
628 static int rpcb_encode_mapping(struct rpc_rqst *req, __be32 *p,
629 struct rpcbind_args *rpcb)
631 dprintk("RPC: rpcb_encode_mapping(%u, %u, %d, %u)\n",
632 rpcb->r_prog, rpcb->r_vers, rpcb->r_prot, rpcb->r_port);
633 *p++ = htonl(rpcb->r_prog);
634 *p++ = htonl(rpcb->r_vers);
635 *p++ = htonl(rpcb->r_prot);
636 *p++ = htonl(rpcb->r_port);
638 req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
642 static int rpcb_decode_getport(struct rpc_rqst *req, __be32 *p,
643 unsigned short *portp)
645 *portp = (unsigned short) ntohl(*p++);
646 dprintk("RPC: rpcb_decode_getport result %u\n",
651 static int rpcb_decode_set(struct rpc_rqst *req, __be32 *p,
654 *boolp = (unsigned int) ntohl(*p++);
655 dprintk("RPC: rpcb_decode_set: call %s\n",
656 (*boolp ? "succeeded" : "failed"));
660 static int rpcb_encode_getaddr(struct rpc_rqst *req, __be32 *p,
661 struct rpcbind_args *rpcb)
663 dprintk("RPC: rpcb_encode_getaddr(%u, %u, %s)\n",
664 rpcb->r_prog, rpcb->r_vers, rpcb->r_addr);
665 *p++ = htonl(rpcb->r_prog);
666 *p++ = htonl(rpcb->r_vers);
668 p = xdr_encode_string(p, rpcb->r_netid);
669 p = xdr_encode_string(p, rpcb->r_addr);
670 p = xdr_encode_string(p, rpcb->r_owner);
672 req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
677 static int rpcb_decode_getaddr(struct rpc_rqst *req, __be32 *p,
678 unsigned short *portp)
682 int c, i, f, first, val;
685 addr_len = ntohl(*p++);
688 * Simple sanity check. The smallest possible universal
689 * address is an IPv4 address string containing 11 bytes.
691 if (addr_len < 11 || addr_len > RPCBIND_MAXUADDRLEN)
695 * Start at the end and walk backwards until the first dot
696 * is encountered. When the second dot is found, we have
697 * both parts of the port number.
703 for (i = addr_len - 1; i > 0; i--) {
705 if (c >= '0' && c <= '9') {
706 val += (c - '0') * f;
708 } else if (c == '.') {
714 *portp |= (val << 8);
721 * Simple sanity check. If we never saw a dot in the reply,
722 * then this was probably just garbage.
727 dprintk("RPC: rpcb_decode_getaddr port=%u\n", *portp);
731 dprintk("RPC: rpcbind server returned malformed reply\n");
735 #define RPCB_program_sz (1u)
736 #define RPCB_version_sz (1u)
737 #define RPCB_protocol_sz (1u)
738 #define RPCB_port_sz (1u)
739 #define RPCB_boolean_sz (1u)
741 #define RPCB_netid_sz (1+XDR_QUADLEN(RPCBIND_MAXNETIDLEN))
742 #define RPCB_addr_sz (1+XDR_QUADLEN(RPCBIND_MAXUADDRLEN))
743 #define RPCB_ownerstring_sz (1+XDR_QUADLEN(RPCB_MAXOWNERLEN))
745 #define RPCB_mappingargs_sz RPCB_program_sz+RPCB_version_sz+ \
746 RPCB_protocol_sz+RPCB_port_sz
747 #define RPCB_getaddrargs_sz RPCB_program_sz+RPCB_version_sz+ \
748 RPCB_netid_sz+RPCB_addr_sz+ \
751 #define RPCB_setres_sz RPCB_boolean_sz
752 #define RPCB_getportres_sz RPCB_port_sz
755 * Note that RFC 1833 does not put any size restrictions on the
756 * address string returned by the remote rpcbind database.
758 #define RPCB_getaddrres_sz RPCB_addr_sz
760 #define PROC(proc, argtype, restype) \
761 [RPCBPROC_##proc] = { \
762 .p_proc = RPCBPROC_##proc, \
763 .p_encode = (kxdrproc_t) rpcb_encode_##argtype, \
764 .p_decode = (kxdrproc_t) rpcb_decode_##restype, \
765 .p_arglen = RPCB_##argtype##args_sz, \
766 .p_replen = RPCB_##restype##res_sz, \
767 .p_statidx = RPCBPROC_##proc, \
773 * Not all rpcbind procedures described in RFC 1833 are implemented
774 * since the Linux kernel RPC code requires only these.
776 static struct rpc_procinfo rpcb_procedures2[] = {
777 PROC(SET, mapping, set),
778 PROC(UNSET, mapping, set),
779 PROC(GETPORT, mapping, getport),
782 static struct rpc_procinfo rpcb_procedures3[] = {
783 PROC(SET, getaddr, set),
784 PROC(UNSET, getaddr, set),
785 PROC(GETADDR, getaddr, getaddr),
788 static struct rpc_procinfo rpcb_procedures4[] = {
789 PROC(SET, getaddr, set),
790 PROC(UNSET, getaddr, set),
791 PROC(GETADDR, getaddr, getaddr),
792 PROC(GETVERSADDR, getaddr, getaddr),
795 static struct rpcb_info rpcb_next_version[] = {
797 .rpc_vers = RPCBVERS_2,
798 .rpc_proc = &rpcb_procedures2[RPCBPROC_GETPORT],
805 static struct rpcb_info rpcb_next_version6[] = {
807 .rpc_vers = RPCBVERS_4,
808 .rpc_proc = &rpcb_procedures4[RPCBPROC_GETADDR],
811 .rpc_vers = RPCBVERS_3,
812 .rpc_proc = &rpcb_procedures3[RPCBPROC_GETADDR],
819 static struct rpc_version rpcb_version2 = {
820 .number = RPCBVERS_2,
821 .nrprocs = RPCB_HIGHPROC_2,
822 .procs = rpcb_procedures2
825 static struct rpc_version rpcb_version3 = {
826 .number = RPCBVERS_3,
827 .nrprocs = RPCB_HIGHPROC_3,
828 .procs = rpcb_procedures3
831 static struct rpc_version rpcb_version4 = {
832 .number = RPCBVERS_4,
833 .nrprocs = RPCB_HIGHPROC_4,
834 .procs = rpcb_procedures4
837 static struct rpc_version *rpcb_version[] = {
845 static struct rpc_stat rpcb_stats;
847 static struct rpc_program rpcb_program = {
849 .number = RPCBIND_PROGRAM,
850 .nrvers = ARRAY_SIZE(rpcb_version),
851 .version = rpcb_version,
852 .stats = &rpcb_stats,