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);
206 * rpcb_register - set or unset a port registration with the local rpcbind svc
207 * @prog: RPC program number to bind
208 * @vers: RPC version number to bind
209 * @prot: transport protocol to register
210 * @port: port value to register
212 * Returns zero if the registration request was dispatched successfully
213 * and the rpcbind daemon returned success. Otherwise, returns an errno
214 * value that reflects the nature of the error (request could not be
215 * dispatched, timed out, or rpcbind returned an error).
217 * RPC services invoke this function to advertise their contact
218 * information via the system's rpcbind daemon. RPC services
219 * invoke this function once for each [program, version, transport]
220 * tuple they wish to advertise.
222 * Callers may also unregister RPC services that are no longer
223 * available by setting the passed-in port to zero. This removes
224 * all registered transports for [program, version] from the local
227 * This function uses rpcbind protocol version 2 to contact the
228 * local rpcbind daemon.
230 * Registration works over both AF_INET and AF_INET6, and services
231 * registered via this function are advertised as available for any
232 * address. If the local rpcbind daemon is listening on AF_INET6,
233 * services registered via this function will be advertised on
234 * IN6ADDR_ANY (ie available for all AF_INET and AF_INET6
237 int rpcb_register(u32 prog, u32 vers, int prot, unsigned short port)
239 struct rpcbind_args map = {
245 struct rpc_message msg = {
249 dprintk("RPC: %sregistering (%u, %u, %d, %u) with local "
250 "rpcbind\n", (port ? "" : "un"),
251 prog, vers, prot, port);
253 msg.rpc_proc = &rpcb_procedures2[RPCBPROC_UNSET];
255 msg.rpc_proc = &rpcb_procedures2[RPCBPROC_SET];
257 return rpcb_register_call((struct sockaddr *)&rpcb_inaddr_loopback,
258 sizeof(rpcb_inaddr_loopback),
263 * Fill in AF_INET family-specific arguments to register
265 static int rpcb_register_netid4(struct sockaddr_in *address_to_register,
266 struct rpc_message *msg)
268 struct rpcbind_args *map = msg->rpc_argp;
269 unsigned short port = ntohs(address_to_register->sin_port);
272 /* Construct AF_INET universal address */
273 snprintf(buf, sizeof(buf),
275 NIPQUAD(address_to_register->sin_addr.s_addr),
276 port >> 8, port & 0xff);
279 dprintk("RPC: %sregistering [%u, %u, %s, '%s'] with "
280 "local rpcbind\n", (port ? "" : "un"),
281 map->r_prog, map->r_vers,
282 map->r_addr, map->r_netid);
284 msg->rpc_proc = &rpcb_procedures4[RPCBPROC_UNSET];
286 msg->rpc_proc = &rpcb_procedures4[RPCBPROC_SET];
288 return rpcb_register_call((struct sockaddr *)&rpcb_inaddr_loopback,
289 sizeof(rpcb_inaddr_loopback),
294 * Fill in AF_INET6 family-specific arguments to register
296 static int rpcb_register_netid6(struct sockaddr_in6 *address_to_register,
297 struct rpc_message *msg)
299 struct rpcbind_args *map = msg->rpc_argp;
300 unsigned short port = ntohs(address_to_register->sin6_port);
303 /* Construct AF_INET6 universal address */
304 if (ipv6_addr_any(&address_to_register->sin6_addr))
305 snprintf(buf, sizeof(buf), "::.%u.%u",
306 port >> 8, port & 0xff);
308 snprintf(buf, sizeof(buf), "%pI6.%u.%u",
309 &address_to_register->sin6_addr,
310 port >> 8, port & 0xff);
313 dprintk("RPC: %sregistering [%u, %u, %s, '%s'] with "
314 "local rpcbind\n", (port ? "" : "un"),
315 map->r_prog, map->r_vers,
316 map->r_addr, map->r_netid);
318 msg->rpc_proc = &rpcb_procedures4[RPCBPROC_UNSET];
320 msg->rpc_proc = &rpcb_procedures4[RPCBPROC_SET];
322 return rpcb_register_call((struct sockaddr *)&rpcb_in6addr_loopback,
323 sizeof(rpcb_in6addr_loopback),
328 * rpcb_v4_register - set or unset a port registration with the local rpcbind
329 * @program: RPC program number of service to (un)register
330 * @version: RPC version number of service to (un)register
331 * @address: address family, IP address, and port to (un)register
332 * @netid: netid of transport protocol to (un)register
334 * Returns zero if the registration request was dispatched successfully
335 * and the rpcbind daemon returned success. Otherwise, returns an errno
336 * value that reflects the nature of the error (request could not be
337 * dispatched, timed out, or rpcbind returned an error).
339 * RPC services invoke this function to advertise their contact
340 * information via the system's rpcbind daemon. RPC services
341 * invoke this function once for each [program, version, address,
342 * netid] tuple they wish to advertise.
344 * Callers may also unregister RPC services that are no longer
345 * available by setting the port number in the passed-in address
346 * to zero. Callers pass a netid of "" to unregister all
347 * transport netids associated with [program, version, address].
349 * This function uses rpcbind protocol version 4 to contact the
350 * local rpcbind daemon. The local rpcbind daemon must support
351 * version 4 of the rpcbind protocol in order for these functions
352 * to register a service successfully.
354 * Supported netids include "udp" and "tcp" for UDP and TCP over
355 * IPv4, and "udp6" and "tcp6" for UDP and TCP over IPv6,
358 * The contents of @address determine the address family and the
359 * port to be registered. The usual practice is to pass INADDR_ANY
360 * as the raw address, but specifying a non-zero address is also
361 * supported by this API if the caller wishes to advertise an RPC
362 * service on a specific network interface.
364 * Note that passing in INADDR_ANY does not create the same service
365 * registration as IN6ADDR_ANY. The former advertises an RPC
366 * service on any IPv4 address, but not on IPv6. The latter
367 * advertises the service on all IPv4 and IPv6 addresses.
369 int rpcb_v4_register(const u32 program, const u32 version,
370 const struct sockaddr *address, const char *netid)
372 struct rpcbind_args map = {
376 .r_owner = RPCB_OWNER_STRING,
378 struct rpc_message msg = {
382 switch (address->sa_family) {
384 return rpcb_register_netid4((struct sockaddr_in *)address,
387 return rpcb_register_netid6((struct sockaddr_in6 *)address,
391 return -EAFNOSUPPORT;
395 * rpcb_getport_sync - obtain the port for an RPC service on a given host
396 * @sin: address of remote peer
397 * @prog: RPC program number to bind
398 * @vers: RPC version number to bind
399 * @prot: transport protocol to use to make this request
401 * Return value is the requested advertised port number,
402 * or a negative errno value.
404 * Called from outside the RPC client in a synchronous task context.
405 * Uses default timeout parameters specified by underlying transport.
407 * XXX: Needs to support IPv6
409 int rpcb_getport_sync(struct sockaddr_in *sin, u32 prog, u32 vers, int prot)
411 struct rpcbind_args map = {
417 struct rpc_message msg = {
418 .rpc_proc = &rpcb_procedures2[RPCBPROC_GETPORT],
420 .rpc_resp = &map.r_port,
422 struct rpc_clnt *rpcb_clnt;
425 dprintk("RPC: %s(" NIPQUAD_FMT ", %u, %u, %d)\n",
426 __func__, NIPQUAD(sin->sin_addr.s_addr), prog, vers, prot);
428 rpcb_clnt = rpcb_create(NULL, (struct sockaddr *)sin,
429 sizeof(*sin), prot, RPCBVERS_2);
430 if (IS_ERR(rpcb_clnt))
431 return PTR_ERR(rpcb_clnt);
433 status = rpc_call_sync(rpcb_clnt, &msg, 0);
434 rpc_shutdown_client(rpcb_clnt);
443 EXPORT_SYMBOL_GPL(rpcb_getport_sync);
445 static struct rpc_task *rpcb_call_async(struct rpc_clnt *rpcb_clnt, struct rpcbind_args *map, struct rpc_procinfo *proc)
447 struct rpc_message msg = {
450 .rpc_resp = &map->r_port,
452 struct rpc_task_setup task_setup_data = {
453 .rpc_client = rpcb_clnt,
455 .callback_ops = &rpcb_getport_ops,
456 .callback_data = map,
457 .flags = RPC_TASK_ASYNC,
460 return rpc_run_task(&task_setup_data);
464 * In the case where rpc clients have been cloned, we want to make
465 * sure that we use the program number/version etc of the actual
466 * owner of the xprt. To do so, we walk back up the tree of parents
467 * to find whoever created the transport and/or whoever has the
470 static struct rpc_clnt *rpcb_find_transport_owner(struct rpc_clnt *clnt)
472 struct rpc_clnt *parent = clnt->cl_parent;
474 while (parent != clnt) {
475 if (parent->cl_xprt != clnt->cl_xprt)
477 if (clnt->cl_autobind)
480 parent = parent->cl_parent;
486 * rpcb_getport_async - obtain the port for a given RPC service on a given host
487 * @task: task that is waiting for portmapper request
489 * This one can be called for an ongoing RPC request, and can be used in
490 * an async (rpciod) context.
492 void rpcb_getport_async(struct rpc_task *task)
494 struct rpc_clnt *clnt;
495 struct rpc_procinfo *proc;
497 struct rpc_xprt *xprt;
498 struct rpc_clnt *rpcb_clnt;
499 static struct rpcbind_args *map;
500 struct rpc_task *child;
501 struct sockaddr_storage addr;
502 struct sockaddr *sap = (struct sockaddr *)&addr;
506 clnt = rpcb_find_transport_owner(task->tk_client);
507 xprt = clnt->cl_xprt;
509 dprintk("RPC: %5u %s(%s, %u, %u, %d)\n",
510 task->tk_pid, __func__,
511 clnt->cl_server, clnt->cl_prog, clnt->cl_vers, xprt->prot);
513 /* Put self on the wait queue to ensure we get notified if
514 * some other task is already attempting to bind the port */
515 rpc_sleep_on(&xprt->binding, task, NULL);
517 if (xprt_test_and_set_binding(xprt)) {
518 dprintk("RPC: %5u %s: waiting for another binder\n",
519 task->tk_pid, __func__);
523 /* Someone else may have bound if we slept */
524 if (xprt_bound(xprt)) {
526 dprintk("RPC: %5u %s: already bound\n",
527 task->tk_pid, __func__);
531 salen = rpc_peeraddr(clnt, sap, sizeof(addr));
533 /* Don't ever use rpcbind v2 for AF_INET6 requests */
534 switch (sap->sa_family) {
536 proc = rpcb_next_version[xprt->bind_index].rpc_proc;
537 bind_version = rpcb_next_version[xprt->bind_index].rpc_vers;
540 proc = rpcb_next_version6[xprt->bind_index].rpc_proc;
541 bind_version = rpcb_next_version6[xprt->bind_index].rpc_vers;
544 status = -EAFNOSUPPORT;
545 dprintk("RPC: %5u %s: bad address family\n",
546 task->tk_pid, __func__);
550 xprt->bind_index = 0;
551 status = -EPFNOSUPPORT;
552 dprintk("RPC: %5u %s: no more getport versions available\n",
553 task->tk_pid, __func__);
557 dprintk("RPC: %5u %s: trying rpcbind version %u\n",
558 task->tk_pid, __func__, bind_version);
560 rpcb_clnt = rpcb_create(clnt->cl_server, sap, salen, xprt->prot,
562 if (IS_ERR(rpcb_clnt)) {
563 status = PTR_ERR(rpcb_clnt);
564 dprintk("RPC: %5u %s: rpcb_create failed, error %ld\n",
565 task->tk_pid, __func__, PTR_ERR(rpcb_clnt));
569 map = kzalloc(sizeof(struct rpcbind_args), GFP_ATOMIC);
572 dprintk("RPC: %5u %s: no memory available\n",
573 task->tk_pid, __func__);
574 goto bailout_release_client;
576 map->r_prog = clnt->cl_prog;
577 map->r_vers = clnt->cl_vers;
578 map->r_prot = xprt->prot;
580 map->r_xprt = xprt_get(xprt);
581 map->r_netid = rpc_peeraddr2str(clnt, RPC_DISPLAY_NETID);
582 map->r_addr = rpc_peeraddr2str(rpcb_clnt, RPC_DISPLAY_UNIVERSAL_ADDR);
583 map->r_owner = RPCB_OWNER_STRING; /* ignored for GETADDR */
584 map->r_status = -EIO;
586 child = rpcb_call_async(rpcb_clnt, map, proc);
587 rpc_release_client(rpcb_clnt);
589 /* rpcb_map_release() has freed the arguments */
590 dprintk("RPC: %5u %s: rpc_run_task failed\n",
591 task->tk_pid, __func__);
595 xprt->stat.bind_count++;
599 bailout_release_client:
600 rpc_release_client(rpcb_clnt);
602 rpcb_wake_rpcbind_waiters(xprt, status);
603 task->tk_status = status;
605 EXPORT_SYMBOL_GPL(rpcb_getport_async);
608 * Rpcbind child task calls this callback via tk_exit.
610 static void rpcb_getport_done(struct rpc_task *child, void *data)
612 struct rpcbind_args *map = data;
613 struct rpc_xprt *xprt = map->r_xprt;
614 int status = child->tk_status;
616 /* Garbage reply: retry with a lesser rpcbind version */
618 status = -EPROTONOSUPPORT;
620 /* rpcbind server doesn't support this rpcbind protocol version */
621 if (status == -EPROTONOSUPPORT)
625 /* rpcbind server not available on remote host? */
626 xprt->ops->set_port(xprt, 0);
627 } else if (map->r_port == 0) {
628 /* Requested RPC service wasn't registered on remote host */
629 xprt->ops->set_port(xprt, 0);
633 xprt->ops->set_port(xprt, map->r_port);
634 xprt_set_bound(xprt);
638 dprintk("RPC: %5u rpcb_getport_done(status %d, port %u)\n",
639 child->tk_pid, status, map->r_port);
641 map->r_status = status;
645 * XDR functions for rpcbind
648 static int rpcb_encode_mapping(struct rpc_rqst *req, __be32 *p,
649 struct rpcbind_args *rpcb)
651 dprintk("RPC: encoding rpcb request (%u, %u, %d, %u)\n",
652 rpcb->r_prog, rpcb->r_vers, rpcb->r_prot, rpcb->r_port);
653 *p++ = htonl(rpcb->r_prog);
654 *p++ = htonl(rpcb->r_vers);
655 *p++ = htonl(rpcb->r_prot);
656 *p++ = htonl(rpcb->r_port);
658 req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
662 static int rpcb_decode_getport(struct rpc_rqst *req, __be32 *p,
663 unsigned short *portp)
665 *portp = (unsigned short) ntohl(*p++);
666 dprintk("RPC: rpcb getport result: %u\n",
671 static int rpcb_decode_set(struct rpc_rqst *req, __be32 *p,
674 *boolp = (unsigned int) ntohl(*p++);
675 dprintk("RPC: rpcb set/unset call %s\n",
676 (*boolp ? "succeeded" : "failed"));
680 static int rpcb_encode_getaddr(struct rpc_rqst *req, __be32 *p,
681 struct rpcbind_args *rpcb)
683 dprintk("RPC: encoding rpcb request (%u, %u, %s)\n",
684 rpcb->r_prog, rpcb->r_vers, rpcb->r_addr);
685 *p++ = htonl(rpcb->r_prog);
686 *p++ = htonl(rpcb->r_vers);
688 p = xdr_encode_string(p, rpcb->r_netid);
689 p = xdr_encode_string(p, rpcb->r_addr);
690 p = xdr_encode_string(p, rpcb->r_owner);
692 req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
697 static int rpcb_decode_getaddr(struct rpc_rqst *req, __be32 *p,
698 unsigned short *portp)
702 int c, i, f, first, val;
705 addr_len = ntohl(*p++);
708 * Simple sanity check. The smallest possible universal
709 * address is an IPv4 address string containing 11 bytes.
711 if (addr_len < 11 || addr_len > RPCBIND_MAXUADDRLEN)
715 * Start at the end and walk backwards until the first dot
716 * is encountered. When the second dot is found, we have
717 * both parts of the port number.
723 for (i = addr_len - 1; i > 0; i--) {
725 if (c >= '0' && c <= '9') {
726 val += (c - '0') * f;
728 } else if (c == '.') {
734 *portp |= (val << 8);
741 * Simple sanity check. If we never saw a dot in the reply,
742 * then this was probably just garbage.
747 dprintk("RPC: rpcb_decode_getaddr port=%u\n", *portp);
751 dprintk("RPC: rpcbind server returned malformed reply\n");
755 #define RPCB_program_sz (1u)
756 #define RPCB_version_sz (1u)
757 #define RPCB_protocol_sz (1u)
758 #define RPCB_port_sz (1u)
759 #define RPCB_boolean_sz (1u)
761 #define RPCB_netid_sz (1+XDR_QUADLEN(RPCBIND_MAXNETIDLEN))
762 #define RPCB_addr_sz (1+XDR_QUADLEN(RPCBIND_MAXUADDRLEN))
763 #define RPCB_ownerstring_sz (1+XDR_QUADLEN(RPCB_MAXOWNERLEN))
765 #define RPCB_mappingargs_sz RPCB_program_sz+RPCB_version_sz+ \
766 RPCB_protocol_sz+RPCB_port_sz
767 #define RPCB_getaddrargs_sz RPCB_program_sz+RPCB_version_sz+ \
768 RPCB_netid_sz+RPCB_addr_sz+ \
771 #define RPCB_setres_sz RPCB_boolean_sz
772 #define RPCB_getportres_sz RPCB_port_sz
775 * Note that RFC 1833 does not put any size restrictions on the
776 * address string returned by the remote rpcbind database.
778 #define RPCB_getaddrres_sz RPCB_addr_sz
780 #define PROC(proc, argtype, restype) \
781 [RPCBPROC_##proc] = { \
782 .p_proc = RPCBPROC_##proc, \
783 .p_encode = (kxdrproc_t) rpcb_encode_##argtype, \
784 .p_decode = (kxdrproc_t) rpcb_decode_##restype, \
785 .p_arglen = RPCB_##argtype##args_sz, \
786 .p_replen = RPCB_##restype##res_sz, \
787 .p_statidx = RPCBPROC_##proc, \
793 * Not all rpcbind procedures described in RFC 1833 are implemented
794 * since the Linux kernel RPC code requires only these.
796 static struct rpc_procinfo rpcb_procedures2[] = {
797 PROC(SET, mapping, set),
798 PROC(UNSET, mapping, set),
799 PROC(GETPORT, mapping, getport),
802 static struct rpc_procinfo rpcb_procedures3[] = {
803 PROC(SET, getaddr, set),
804 PROC(UNSET, getaddr, set),
805 PROC(GETADDR, getaddr, getaddr),
808 static struct rpc_procinfo rpcb_procedures4[] = {
809 PROC(SET, getaddr, set),
810 PROC(UNSET, getaddr, set),
811 PROC(GETADDR, getaddr, getaddr),
812 PROC(GETVERSADDR, getaddr, getaddr),
815 static struct rpcb_info rpcb_next_version[] = {
817 .rpc_vers = RPCBVERS_2,
818 .rpc_proc = &rpcb_procedures2[RPCBPROC_GETPORT],
825 static struct rpcb_info rpcb_next_version6[] = {
827 .rpc_vers = RPCBVERS_4,
828 .rpc_proc = &rpcb_procedures4[RPCBPROC_GETADDR],
831 .rpc_vers = RPCBVERS_3,
832 .rpc_proc = &rpcb_procedures3[RPCBPROC_GETADDR],
839 static struct rpc_version rpcb_version2 = {
840 .number = RPCBVERS_2,
841 .nrprocs = RPCB_HIGHPROC_2,
842 .procs = rpcb_procedures2
845 static struct rpc_version rpcb_version3 = {
846 .number = RPCBVERS_3,
847 .nrprocs = RPCB_HIGHPROC_3,
848 .procs = rpcb_procedures3
851 static struct rpc_version rpcb_version4 = {
852 .number = RPCBVERS_4,
853 .nrprocs = RPCB_HIGHPROC_4,
854 .procs = rpcb_procedures4
857 static struct rpc_version *rpcb_version[] = {
865 static struct rpc_stat rpcb_stats;
867 static struct rpc_program rpcb_program = {
869 .number = RPCBIND_PROGRAM,
870 .nrvers = ARRAY_SIZE(rpcb_version),
871 .version = rpcb_version,
872 .stats = &rpcb_stats,