1// SPDX-License-Identifier: GPL-2.0
2/*
3 * linux/fs/lockd/svcproc.c
4 *
5 * Lockd server procedures. We don't implement the NLM_*_RES
6 * procedures because we don't use the async procedures.
7 *
8 * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
9 */
10
11#include <linux/types.h>
12#include <linux/time.h>
13#include <linux/lockd/lockd.h>
14#include <linux/lockd/share.h>
15#include <linux/sunrpc/svc_xprt.h>
16
17#define NLMDBG_FACILITY		NLMDBG_CLIENT
18
19#ifdef CONFIG_LOCKD_V4
20static __be32
21cast_to_nlm(__be32 status, u32 vers)
22{
23	/* Note: status is assumed to be in network byte order !!! */
24	if (vers != 4){
25		switch (status) {
26		case nlm_granted:
27		case nlm_lck_denied:
28		case nlm_lck_denied_nolocks:
29		case nlm_lck_blocked:
30		case nlm_lck_denied_grace_period:
31		case nlm_drop_reply:
32			break;
33		case nlm4_deadlock:
34			status = nlm_lck_denied;
35			break;
36		default:
37			status = nlm_lck_denied_nolocks;
38		}
39	}
40
41	return (status);
42}
43#define	cast_status(status) (cast_to_nlm(status, rqstp->rq_vers))
44#else
45#define cast_status(status) (status)
46#endif
47
48/*
49 * Obtain client and file from arguments
50 */
51static __be32
52nlmsvc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp,
53			struct nlm_host **hostp, struct nlm_file **filp)
54{
55	struct nlm_host		*host = NULL;
56	struct nlm_file		*file = NULL;
57	struct nlm_lock		*lock = &argp->lock;
58	int			mode;
59	__be32			error = 0;
60
61	/* nfsd callbacks must have been installed for this procedure */
62	if (!nlmsvc_ops)
63		return nlm_lck_denied_nolocks;
64
65	/* Obtain host handle */
66	if (!(host = nlmsvc_lookup_host(rqstp, lock->caller, lock->len))
67	 || (argp->monitor && nsm_monitor(host) < 0))
68		goto no_locks;
69	*hostp = host;
70
71	/* Obtain file pointer. Not used by FREE_ALL call. */
72	if (filp != NULL) {
73		error = cast_status(nlm_lookup_file(rqstp, &file, lock));
74		if (error != 0)
75			goto no_locks;
76		*filp = file;
77
78		/* Set up the missing parts of the file_lock structure */
79		mode = lock_to_openmode(&lock->fl);
80		lock->fl.c.flc_flags = FL_POSIX;
81		lock->fl.c.flc_file  = file->f_file[mode];
82		lock->fl.c.flc_pid = current->tgid;
83		lock->fl.fl_lmops = &nlmsvc_lock_operations;
84		nlmsvc_locks_init_private(&lock->fl, host, (pid_t)lock->svid);
85		if (!lock->fl.c.flc_owner) {
86			/* lockowner allocation has failed */
87			nlmsvc_release_host(host);
88			return nlm_lck_denied_nolocks;
89		}
90	}
91
92	return 0;
93
94no_locks:
95	nlmsvc_release_host(host);
96	if (error)
97		return error;
98	return nlm_lck_denied_nolocks;
99}
100
101/*
102 * NULL: Test for presence of service
103 */
104static __be32
105nlmsvc_proc_null(struct svc_rqst *rqstp)
106{
107	dprintk("lockd: NULL          called\n");
108	return rpc_success;
109}
110
111/*
112 * TEST: Check for conflicting lock
113 */
114static __be32
115__nlmsvc_proc_test(struct svc_rqst *rqstp, struct nlm_res *resp)
116{
117	struct nlm_args *argp = rqstp->rq_argp;
118	struct nlm_host	*host;
119	struct nlm_file	*file;
120	struct nlm_lockowner *test_owner;
121	__be32 rc = rpc_success;
122
123	dprintk("lockd: TEST          called\n");
124	resp->cookie = argp->cookie;
125
126	/* Obtain client and file */
127	if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
128		return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
129
130	test_owner = argp->lock.fl.c.flc_owner;
131
132	/* Now check for conflicting locks */
133	resp->status = cast_status(nlmsvc_testlock(rqstp, file, host, &argp->lock, &resp->lock, &resp->cookie));
134	if (resp->status == nlm_drop_reply)
135		rc = rpc_drop_reply;
136	else
137		dprintk("lockd: TEST          status %d vers %d\n",
138			ntohl(resp->status), rqstp->rq_vers);
139
140	nlmsvc_put_lockowner(test_owner);
141	nlmsvc_release_host(host);
142	nlm_release_file(file);
143	return rc;
144}
145
146static __be32
147nlmsvc_proc_test(struct svc_rqst *rqstp)
148{
149	return __nlmsvc_proc_test(rqstp, rqstp->rq_resp);
150}
151
152static __be32
153__nlmsvc_proc_lock(struct svc_rqst *rqstp, struct nlm_res *resp)
154{
155	struct nlm_args *argp = rqstp->rq_argp;
156	struct nlm_host	*host;
157	struct nlm_file	*file;
158	__be32 rc = rpc_success;
159
160	dprintk("lockd: LOCK          called\n");
161
162	resp->cookie = argp->cookie;
163
164	/* Obtain client and file */
165	if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
166		return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
167
168#if 0
169	/* If supplied state doesn't match current state, we assume it's
170	 * an old request that time-warped somehow. Any error return would
171	 * do in this case because it's irrelevant anyway.
172	 *
173	 * NB: We don't retrieve the remote host's state yet.
174	 */
175	if (host->h_nsmstate && host->h_nsmstate != argp->state) {
176		resp->status = nlm_lck_denied_nolocks;
177	} else
178#endif
179
180	/* Now try to lock the file */
181	resp->status = cast_status(nlmsvc_lock(rqstp, file, host, &argp->lock,
182					       argp->block, &argp->cookie,
183					       argp->reclaim));
184	if (resp->status == nlm_drop_reply)
185		rc = rpc_drop_reply;
186	else
187		dprintk("lockd: LOCK         status %d\n", ntohl(resp->status));
188
189	nlmsvc_release_lockowner(&argp->lock);
190	nlmsvc_release_host(host);
191	nlm_release_file(file);
192	return rc;
193}
194
195static __be32
196nlmsvc_proc_lock(struct svc_rqst *rqstp)
197{
198	return __nlmsvc_proc_lock(rqstp, rqstp->rq_resp);
199}
200
201static __be32
202__nlmsvc_proc_cancel(struct svc_rqst *rqstp, struct nlm_res *resp)
203{
204	struct nlm_args *argp = rqstp->rq_argp;
205	struct nlm_host	*host;
206	struct nlm_file	*file;
207	struct net *net = SVC_NET(rqstp);
208
209	dprintk("lockd: CANCEL        called\n");
210
211	resp->cookie = argp->cookie;
212
213	/* Don't accept requests during grace period */
214	if (locks_in_grace(net)) {
215		resp->status = nlm_lck_denied_grace_period;
216		return rpc_success;
217	}
218
219	/* Obtain client and file */
220	if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
221		return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
222
223	/* Try to cancel request. */
224	resp->status = cast_status(nlmsvc_cancel_blocked(net, file, &argp->lock));
225
226	dprintk("lockd: CANCEL        status %d\n", ntohl(resp->status));
227	nlmsvc_release_lockowner(&argp->lock);
228	nlmsvc_release_host(host);
229	nlm_release_file(file);
230	return rpc_success;
231}
232
233static __be32
234nlmsvc_proc_cancel(struct svc_rqst *rqstp)
235{
236	return __nlmsvc_proc_cancel(rqstp, rqstp->rq_resp);
237}
238
239/*
240 * UNLOCK: release a lock
241 */
242static __be32
243__nlmsvc_proc_unlock(struct svc_rqst *rqstp, struct nlm_res *resp)
244{
245	struct nlm_args *argp = rqstp->rq_argp;
246	struct nlm_host	*host;
247	struct nlm_file	*file;
248	struct net *net = SVC_NET(rqstp);
249
250	dprintk("lockd: UNLOCK        called\n");
251
252	resp->cookie = argp->cookie;
253
254	/* Don't accept new lock requests during grace period */
255	if (locks_in_grace(net)) {
256		resp->status = nlm_lck_denied_grace_period;
257		return rpc_success;
258	}
259
260	/* Obtain client and file */
261	if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
262		return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
263
264	/* Now try to remove the lock */
265	resp->status = cast_status(nlmsvc_unlock(net, file, &argp->lock));
266
267	dprintk("lockd: UNLOCK        status %d\n", ntohl(resp->status));
268	nlmsvc_release_lockowner(&argp->lock);
269	nlmsvc_release_host(host);
270	nlm_release_file(file);
271	return rpc_success;
272}
273
274static __be32
275nlmsvc_proc_unlock(struct svc_rqst *rqstp)
276{
277	return __nlmsvc_proc_unlock(rqstp, rqstp->rq_resp);
278}
279
280/*
281 * GRANTED: A server calls us to tell that a process' lock request
282 * was granted
283 */
284static __be32
285__nlmsvc_proc_granted(struct svc_rqst *rqstp, struct nlm_res *resp)
286{
287	struct nlm_args *argp = rqstp->rq_argp;
288
289	resp->cookie = argp->cookie;
290
291	dprintk("lockd: GRANTED       called\n");
292	resp->status = nlmclnt_grant(svc_addr(rqstp), &argp->lock);
293	dprintk("lockd: GRANTED       status %d\n", ntohl(resp->status));
294	return rpc_success;
295}
296
297static __be32
298nlmsvc_proc_granted(struct svc_rqst *rqstp)
299{
300	return __nlmsvc_proc_granted(rqstp, rqstp->rq_resp);
301}
302
303/*
304 * This is the generic lockd callback for async RPC calls
305 */
306static void nlmsvc_callback_exit(struct rpc_task *task, void *data)
307{
308}
309
310void nlmsvc_release_call(struct nlm_rqst *call)
311{
312	if (!refcount_dec_and_test(&call->a_count))
313		return;
314	nlmsvc_release_host(call->a_host);
315	kfree(call);
316}
317
318static void nlmsvc_callback_release(void *data)
319{
320	nlmsvc_release_call(data);
321}
322
323static const struct rpc_call_ops nlmsvc_callback_ops = {
324	.rpc_call_done = nlmsvc_callback_exit,
325	.rpc_release = nlmsvc_callback_release,
326};
327
328/*
329 * `Async' versions of the above service routines. They aren't really,
330 * because we send the callback before the reply proper. I hope this
331 * doesn't break any clients.
332 */
333static __be32 nlmsvc_callback(struct svc_rqst *rqstp, u32 proc,
334		__be32 (*func)(struct svc_rqst *, struct nlm_res *))
335{
336	struct nlm_args *argp = rqstp->rq_argp;
337	struct nlm_host	*host;
338	struct nlm_rqst	*call;
339	__be32 stat;
340
341	host = nlmsvc_lookup_host(rqstp,
342				  argp->lock.caller,
343				  argp->lock.len);
344	if (host == NULL)
345		return rpc_system_err;
346
347	call = nlm_alloc_call(host);
348	nlmsvc_release_host(host);
349	if (call == NULL)
350		return rpc_system_err;
351
352	stat = func(rqstp, &call->a_res);
353	if (stat != 0) {
354		nlmsvc_release_call(call);
355		return stat;
356	}
357
358	call->a_flags = RPC_TASK_ASYNC;
359	if (nlm_async_reply(call, proc, &nlmsvc_callback_ops) < 0)
360		return rpc_system_err;
361	return rpc_success;
362}
363
364static __be32 nlmsvc_proc_test_msg(struct svc_rqst *rqstp)
365{
366	dprintk("lockd: TEST_MSG      called\n");
367	return nlmsvc_callback(rqstp, NLMPROC_TEST_RES, __nlmsvc_proc_test);
368}
369
370static __be32 nlmsvc_proc_lock_msg(struct svc_rqst *rqstp)
371{
372	dprintk("lockd: LOCK_MSG      called\n");
373	return nlmsvc_callback(rqstp, NLMPROC_LOCK_RES, __nlmsvc_proc_lock);
374}
375
376static __be32 nlmsvc_proc_cancel_msg(struct svc_rqst *rqstp)
377{
378	dprintk("lockd: CANCEL_MSG    called\n");
379	return nlmsvc_callback(rqstp, NLMPROC_CANCEL_RES, __nlmsvc_proc_cancel);
380}
381
382static __be32
383nlmsvc_proc_unlock_msg(struct svc_rqst *rqstp)
384{
385	dprintk("lockd: UNLOCK_MSG    called\n");
386	return nlmsvc_callback(rqstp, NLMPROC_UNLOCK_RES, __nlmsvc_proc_unlock);
387}
388
389static __be32
390nlmsvc_proc_granted_msg(struct svc_rqst *rqstp)
391{
392	dprintk("lockd: GRANTED_MSG   called\n");
393	return nlmsvc_callback(rqstp, NLMPROC_GRANTED_RES, __nlmsvc_proc_granted);
394}
395
396/*
397 * SHARE: create a DOS share or alter existing share.
398 */
399static __be32
400nlmsvc_proc_share(struct svc_rqst *rqstp)
401{
402	struct nlm_args *argp = rqstp->rq_argp;
403	struct nlm_res *resp = rqstp->rq_resp;
404	struct nlm_host	*host;
405	struct nlm_file	*file;
406
407	dprintk("lockd: SHARE         called\n");
408
409	resp->cookie = argp->cookie;
410
411	/* Don't accept new lock requests during grace period */
412	if (locks_in_grace(SVC_NET(rqstp)) && !argp->reclaim) {
413		resp->status = nlm_lck_denied_grace_period;
414		return rpc_success;
415	}
416
417	/* Obtain client and file */
418	if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
419		return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
420
421	/* Now try to create the share */
422	resp->status = cast_status(nlmsvc_share_file(host, file, argp));
423
424	dprintk("lockd: SHARE         status %d\n", ntohl(resp->status));
425	nlmsvc_release_lockowner(&argp->lock);
426	nlmsvc_release_host(host);
427	nlm_release_file(file);
428	return rpc_success;
429}
430
431/*
432 * UNSHARE: Release a DOS share.
433 */
434static __be32
435nlmsvc_proc_unshare(struct svc_rqst *rqstp)
436{
437	struct nlm_args *argp = rqstp->rq_argp;
438	struct nlm_res *resp = rqstp->rq_resp;
439	struct nlm_host	*host;
440	struct nlm_file	*file;
441
442	dprintk("lockd: UNSHARE       called\n");
443
444	resp->cookie = argp->cookie;
445
446	/* Don't accept requests during grace period */
447	if (locks_in_grace(SVC_NET(rqstp))) {
448		resp->status = nlm_lck_denied_grace_period;
449		return rpc_success;
450	}
451
452	/* Obtain client and file */
453	if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
454		return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
455
456	/* Now try to unshare the file */
457	resp->status = cast_status(nlmsvc_unshare_file(host, file, argp));
458
459	dprintk("lockd: UNSHARE       status %d\n", ntohl(resp->status));
460	nlmsvc_release_lockowner(&argp->lock);
461	nlmsvc_release_host(host);
462	nlm_release_file(file);
463	return rpc_success;
464}
465
466/*
467 * NM_LOCK: Create an unmonitored lock
468 */
469static __be32
470nlmsvc_proc_nm_lock(struct svc_rqst *rqstp)
471{
472	struct nlm_args *argp = rqstp->rq_argp;
473
474	dprintk("lockd: NM_LOCK       called\n");
475
476	argp->monitor = 0;		/* just clean the monitor flag */
477	return nlmsvc_proc_lock(rqstp);
478}
479
480/*
481 * FREE_ALL: Release all locks and shares held by client
482 */
483static __be32
484nlmsvc_proc_free_all(struct svc_rqst *rqstp)
485{
486	struct nlm_args *argp = rqstp->rq_argp;
487	struct nlm_host	*host;
488
489	/* Obtain client */
490	if (nlmsvc_retrieve_args(rqstp, argp, &host, NULL))
491		return rpc_success;
492
493	nlmsvc_free_host_resources(host);
494	nlmsvc_release_host(host);
495	return rpc_success;
496}
497
498/*
499 * SM_NOTIFY: private callback from statd (not part of official NLM proto)
500 */
501static __be32
502nlmsvc_proc_sm_notify(struct svc_rqst *rqstp)
503{
504	struct nlm_reboot *argp = rqstp->rq_argp;
505
506	dprintk("lockd: SM_NOTIFY     called\n");
507
508	if (!nlm_privileged_requester(rqstp)) {
509		char buf[RPC_MAX_ADDRBUFLEN];
510		printk(KERN_WARNING "lockd: rejected NSM callback from %s\n",
511				svc_print_addr(rqstp, buf, sizeof(buf)));
512		return rpc_system_err;
513	}
514
515	nlm_host_rebooted(SVC_NET(rqstp), argp);
516	return rpc_success;
517}
518
519/*
520 * client sent a GRANTED_RES, let's remove the associated block
521 */
522static __be32
523nlmsvc_proc_granted_res(struct svc_rqst *rqstp)
524{
525	struct nlm_res *argp = rqstp->rq_argp;
526
527	if (!nlmsvc_ops)
528		return rpc_success;
529
530	dprintk("lockd: GRANTED_RES   called\n");
531
532	nlmsvc_grant_reply(&argp->cookie, argp->status);
533	return rpc_success;
534}
535
536static __be32
537nlmsvc_proc_unused(struct svc_rqst *rqstp)
538{
539	return rpc_proc_unavail;
540}
541
542/*
543 * NLM Server procedures.
544 */
545
546struct nlm_void			{ int dummy; };
547
548#define	Ck	(1+XDR_QUADLEN(NLM_MAXCOOKIELEN))	/* cookie */
549#define	St	1				/* status */
550#define	No	(1+1024/4)			/* Net Obj */
551#define	Rg	2				/* range - offset + size */
552
553const struct svc_procedure nlmsvc_procedures[24] = {
554	[NLMPROC_NULL] = {
555		.pc_func = nlmsvc_proc_null,
556		.pc_decode = nlmsvc_decode_void,
557		.pc_encode = nlmsvc_encode_void,
558		.pc_argsize = sizeof(struct nlm_void),
559		.pc_argzero = sizeof(struct nlm_void),
560		.pc_ressize = sizeof(struct nlm_void),
561		.pc_xdrressize = St,
562		.pc_name = "NULL",
563	},
564	[NLMPROC_TEST] = {
565		.pc_func = nlmsvc_proc_test,
566		.pc_decode = nlmsvc_decode_testargs,
567		.pc_encode = nlmsvc_encode_testres,
568		.pc_argsize = sizeof(struct nlm_args),
569		.pc_argzero = sizeof(struct nlm_args),
570		.pc_ressize = sizeof(struct nlm_res),
571		.pc_xdrressize = Ck+St+2+No+Rg,
572		.pc_name = "TEST",
573	},
574	[NLMPROC_LOCK] = {
575		.pc_func = nlmsvc_proc_lock,
576		.pc_decode = nlmsvc_decode_lockargs,
577		.pc_encode = nlmsvc_encode_res,
578		.pc_argsize = sizeof(struct nlm_args),
579		.pc_argzero = sizeof(struct nlm_args),
580		.pc_ressize = sizeof(struct nlm_res),
581		.pc_xdrressize = Ck+St,
582		.pc_name = "LOCK",
583	},
584	[NLMPROC_CANCEL] = {
585		.pc_func = nlmsvc_proc_cancel,
586		.pc_decode = nlmsvc_decode_cancargs,
587		.pc_encode = nlmsvc_encode_res,
588		.pc_argsize = sizeof(struct nlm_args),
589		.pc_argzero = sizeof(struct nlm_args),
590		.pc_ressize = sizeof(struct nlm_res),
591		.pc_xdrressize = Ck+St,
592		.pc_name = "CANCEL",
593	},
594	[NLMPROC_UNLOCK] = {
595		.pc_func = nlmsvc_proc_unlock,
596		.pc_decode = nlmsvc_decode_unlockargs,
597		.pc_encode = nlmsvc_encode_res,
598		.pc_argsize = sizeof(struct nlm_args),
599		.pc_argzero = sizeof(struct nlm_args),
600		.pc_ressize = sizeof(struct nlm_res),
601		.pc_xdrressize = Ck+St,
602		.pc_name = "UNLOCK",
603	},
604	[NLMPROC_GRANTED] = {
605		.pc_func = nlmsvc_proc_granted,
606		.pc_decode = nlmsvc_decode_testargs,
607		.pc_encode = nlmsvc_encode_res,
608		.pc_argsize = sizeof(struct nlm_args),
609		.pc_argzero = sizeof(struct nlm_args),
610		.pc_ressize = sizeof(struct nlm_res),
611		.pc_xdrressize = Ck+St,
612		.pc_name = "GRANTED",
613	},
614	[NLMPROC_TEST_MSG] = {
615		.pc_func = nlmsvc_proc_test_msg,
616		.pc_decode = nlmsvc_decode_testargs,
617		.pc_encode = nlmsvc_encode_void,
618		.pc_argsize = sizeof(struct nlm_args),
619		.pc_argzero = sizeof(struct nlm_args),
620		.pc_ressize = sizeof(struct nlm_void),
621		.pc_xdrressize = St,
622		.pc_name = "TEST_MSG",
623	},
624	[NLMPROC_LOCK_MSG] = {
625		.pc_func = nlmsvc_proc_lock_msg,
626		.pc_decode = nlmsvc_decode_lockargs,
627		.pc_encode = nlmsvc_encode_void,
628		.pc_argsize = sizeof(struct nlm_args),
629		.pc_argzero = sizeof(struct nlm_args),
630		.pc_ressize = sizeof(struct nlm_void),
631		.pc_xdrressize = St,
632		.pc_name = "LOCK_MSG",
633	},
634	[NLMPROC_CANCEL_MSG] = {
635		.pc_func = nlmsvc_proc_cancel_msg,
636		.pc_decode = nlmsvc_decode_cancargs,
637		.pc_encode = nlmsvc_encode_void,
638		.pc_argsize = sizeof(struct nlm_args),
639		.pc_argzero = sizeof(struct nlm_args),
640		.pc_ressize = sizeof(struct nlm_void),
641		.pc_xdrressize = St,
642		.pc_name = "CANCEL_MSG",
643	},
644	[NLMPROC_UNLOCK_MSG] = {
645		.pc_func = nlmsvc_proc_unlock_msg,
646		.pc_decode = nlmsvc_decode_unlockargs,
647		.pc_encode = nlmsvc_encode_void,
648		.pc_argsize = sizeof(struct nlm_args),
649		.pc_argzero = sizeof(struct nlm_args),
650		.pc_ressize = sizeof(struct nlm_void),
651		.pc_xdrressize = St,
652		.pc_name = "UNLOCK_MSG",
653	},
654	[NLMPROC_GRANTED_MSG] = {
655		.pc_func = nlmsvc_proc_granted_msg,
656		.pc_decode = nlmsvc_decode_testargs,
657		.pc_encode = nlmsvc_encode_void,
658		.pc_argsize = sizeof(struct nlm_args),
659		.pc_argzero = sizeof(struct nlm_args),
660		.pc_ressize = sizeof(struct nlm_void),
661		.pc_xdrressize = St,
662		.pc_name = "GRANTED_MSG",
663	},
664	[NLMPROC_TEST_RES] = {
665		.pc_func = nlmsvc_proc_null,
666		.pc_decode = nlmsvc_decode_void,
667		.pc_encode = nlmsvc_encode_void,
668		.pc_argsize = sizeof(struct nlm_res),
669		.pc_argzero = sizeof(struct nlm_res),
670		.pc_ressize = sizeof(struct nlm_void),
671		.pc_xdrressize = St,
672		.pc_name = "TEST_RES",
673	},
674	[NLMPROC_LOCK_RES] = {
675		.pc_func = nlmsvc_proc_null,
676		.pc_decode = nlmsvc_decode_void,
677		.pc_encode = nlmsvc_encode_void,
678		.pc_argsize = sizeof(struct nlm_res),
679		.pc_argzero = sizeof(struct nlm_res),
680		.pc_ressize = sizeof(struct nlm_void),
681		.pc_xdrressize = St,
682		.pc_name = "LOCK_RES",
683	},
684	[NLMPROC_CANCEL_RES] = {
685		.pc_func = nlmsvc_proc_null,
686		.pc_decode = nlmsvc_decode_void,
687		.pc_encode = nlmsvc_encode_void,
688		.pc_argsize = sizeof(struct nlm_res),
689		.pc_argzero = sizeof(struct nlm_res),
690		.pc_ressize = sizeof(struct nlm_void),
691		.pc_xdrressize = St,
692		.pc_name = "CANCEL_RES",
693	},
694	[NLMPROC_UNLOCK_RES] = {
695		.pc_func = nlmsvc_proc_null,
696		.pc_decode = nlmsvc_decode_void,
697		.pc_encode = nlmsvc_encode_void,
698		.pc_argsize = sizeof(struct nlm_res),
699		.pc_argzero = sizeof(struct nlm_res),
700		.pc_ressize = sizeof(struct nlm_void),
701		.pc_xdrressize = St,
702		.pc_name = "UNLOCK_RES",
703	},
704	[NLMPROC_GRANTED_RES] = {
705		.pc_func = nlmsvc_proc_granted_res,
706		.pc_decode = nlmsvc_decode_res,
707		.pc_encode = nlmsvc_encode_void,
708		.pc_argsize = sizeof(struct nlm_res),
709		.pc_argzero = sizeof(struct nlm_res),
710		.pc_ressize = sizeof(struct nlm_void),
711		.pc_xdrressize = St,
712		.pc_name = "GRANTED_RES",
713	},
714	[NLMPROC_NSM_NOTIFY] = {
715		.pc_func = nlmsvc_proc_sm_notify,
716		.pc_decode = nlmsvc_decode_reboot,
717		.pc_encode = nlmsvc_encode_void,
718		.pc_argsize = sizeof(struct nlm_reboot),
719		.pc_argzero = sizeof(struct nlm_reboot),
720		.pc_ressize = sizeof(struct nlm_void),
721		.pc_xdrressize = St,
722		.pc_name = "SM_NOTIFY",
723	},
724	[17] = {
725		.pc_func = nlmsvc_proc_unused,
726		.pc_decode = nlmsvc_decode_void,
727		.pc_encode = nlmsvc_encode_void,
728		.pc_argsize = sizeof(struct nlm_void),
729		.pc_argzero = sizeof(struct nlm_void),
730		.pc_ressize = sizeof(struct nlm_void),
731		.pc_xdrressize = St,
732		.pc_name = "UNUSED",
733	},
734	[18] = {
735		.pc_func = nlmsvc_proc_unused,
736		.pc_decode = nlmsvc_decode_void,
737		.pc_encode = nlmsvc_encode_void,
738		.pc_argsize = sizeof(struct nlm_void),
739		.pc_argzero = sizeof(struct nlm_void),
740		.pc_ressize = sizeof(struct nlm_void),
741		.pc_xdrressize = St,
742		.pc_name = "UNUSED",
743	},
744	[19] = {
745		.pc_func = nlmsvc_proc_unused,
746		.pc_decode = nlmsvc_decode_void,
747		.pc_encode = nlmsvc_encode_void,
748		.pc_argsize = sizeof(struct nlm_void),
749		.pc_argzero = sizeof(struct nlm_void),
750		.pc_ressize = sizeof(struct nlm_void),
751		.pc_xdrressize = St,
752		.pc_name = "UNUSED",
753	},
754	[NLMPROC_SHARE] = {
755		.pc_func = nlmsvc_proc_share,
756		.pc_decode = nlmsvc_decode_shareargs,
757		.pc_encode = nlmsvc_encode_shareres,
758		.pc_argsize = sizeof(struct nlm_args),
759		.pc_argzero = sizeof(struct nlm_args),
760		.pc_ressize = sizeof(struct nlm_res),
761		.pc_xdrressize = Ck+St+1,
762		.pc_name = "SHARE",
763	},
764	[NLMPROC_UNSHARE] = {
765		.pc_func = nlmsvc_proc_unshare,
766		.pc_decode = nlmsvc_decode_shareargs,
767		.pc_encode = nlmsvc_encode_shareres,
768		.pc_argsize = sizeof(struct nlm_args),
769		.pc_argzero = sizeof(struct nlm_args),
770		.pc_ressize = sizeof(struct nlm_res),
771		.pc_xdrressize = Ck+St+1,
772		.pc_name = "UNSHARE",
773	},
774	[NLMPROC_NM_LOCK] = {
775		.pc_func = nlmsvc_proc_nm_lock,
776		.pc_decode = nlmsvc_decode_lockargs,
777		.pc_encode = nlmsvc_encode_res,
778		.pc_argsize = sizeof(struct nlm_args),
779		.pc_argzero = sizeof(struct nlm_args),
780		.pc_ressize = sizeof(struct nlm_res),
781		.pc_xdrressize = Ck+St,
782		.pc_name = "NM_LOCK",
783	},
784	[NLMPROC_FREE_ALL] = {
785		.pc_func = nlmsvc_proc_free_all,
786		.pc_decode = nlmsvc_decode_notify,
787		.pc_encode = nlmsvc_encode_void,
788		.pc_argsize = sizeof(struct nlm_args),
789		.pc_argzero = sizeof(struct nlm_args),
790		.pc_ressize = sizeof(struct nlm_void),
791		.pc_xdrressize = 0,
792		.pc_name = "FREE_ALL",
793	},
794};
795