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Linux/fs/lockd/svc4proc.c

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  1 // SPDX-License-Identifier: GPL-2.0
  2 /*
  3  * linux/fs/lockd/svc4proc.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 /*
 20  * Obtain client and file from arguments
 21  */
 22 static __be32
 23 nlm4svc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp,
 24                         struct nlm_host **hostp, struct nlm_file **filp)
 25 {
 26         struct nlm_host         *host = NULL;
 27         struct nlm_file         *file = NULL;
 28         struct nlm_lock         *lock = &argp->lock;
 29         __be32                  error = 0;
 30 
 31         /* nfsd callbacks must have been installed for this procedure */
 32         if (!nlmsvc_ops)
 33                 return nlm_lck_denied_nolocks;
 34 
 35         /* Obtain host handle */
 36         if (!(host = nlmsvc_lookup_host(rqstp, lock->caller, lock->len))
 37          || (argp->monitor && nsm_monitor(host) < 0))
 38                 goto no_locks;
 39         *hostp = host;
 40 
 41         /* Obtain file pointer. Not used by FREE_ALL call. */
 42         if (filp != NULL) {
 43                 int mode = lock_to_openmode(&lock->fl);
 44 
 45                 error = nlm_lookup_file(rqstp, &file, lock);
 46                 if (error)
 47                         goto no_locks;
 48                 *filp = file;
 49 
 50                 /* Set up the missing parts of the file_lock structure */
 51                 lock->fl.fl_file  = file->f_file[mode];
 52                 lock->fl.fl_pid = current->tgid;
 53                 lock->fl.fl_lmops = &nlmsvc_lock_operations;
 54                 nlmsvc_locks_init_private(&lock->fl, host, (pid_t)lock->svid);
 55                 if (!lock->fl.fl_owner) {
 56                         /* lockowner allocation has failed */
 57                         nlmsvc_release_host(host);
 58                         return nlm_lck_denied_nolocks;
 59                 }
 60         }
 61 
 62         return 0;
 63 
 64 no_locks:
 65         nlmsvc_release_host(host);
 66         if (error)
 67                 return error;   
 68         return nlm_lck_denied_nolocks;
 69 }
 70 
 71 /*
 72  * NULL: Test for presence of service
 73  */
 74 static __be32
 75 nlm4svc_proc_null(struct svc_rqst *rqstp)
 76 {
 77         dprintk("lockd: NULL          called\n");
 78         return rpc_success;
 79 }
 80 
 81 /*
 82  * TEST: Check for conflicting lock
 83  */
 84 static __be32
 85 __nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_res *resp)
 86 {
 87         struct nlm_args *argp = rqstp->rq_argp;
 88         struct nlm_host *host;
 89         struct nlm_file *file;
 90         __be32 rc = rpc_success;
 91 
 92         dprintk("lockd: TEST4        called\n");
 93         resp->cookie = argp->cookie;
 94 
 95         /* Obtain client and file */
 96         if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
 97                 return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
 98 
 99         /* Now check for conflicting locks */
100         resp->status = nlmsvc_testlock(rqstp, file, host, &argp->lock, &resp->lock, &resp->cookie);
101         if (resp->status == nlm_drop_reply)
102                 rc = rpc_drop_reply;
103         else
104                 dprintk("lockd: TEST4        status %d\n", ntohl(resp->status));
105 
106         nlmsvc_release_lockowner(&argp->lock);
107         nlmsvc_release_host(host);
108         nlm_release_file(file);
109         return rc;
110 }
111 
112 static __be32
113 nlm4svc_proc_test(struct svc_rqst *rqstp)
114 {
115         return __nlm4svc_proc_test(rqstp, rqstp->rq_resp);
116 }
117 
118 static __be32
119 __nlm4svc_proc_lock(struct svc_rqst *rqstp, struct nlm_res *resp)
120 {
121         struct nlm_args *argp = rqstp->rq_argp;
122         struct nlm_host *host;
123         struct nlm_file *file;
124         __be32 rc = rpc_success;
125 
126         dprintk("lockd: LOCK          called\n");
127 
128         resp->cookie = argp->cookie;
129 
130         /* Obtain client and file */
131         if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
132                 return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
133 
134 #if 0
135         /* If supplied state doesn't match current state, we assume it's
136          * an old request that time-warped somehow. Any error return would
137          * do in this case because it's irrelevant anyway.
138          *
139          * NB: We don't retrieve the remote host's state yet.
140          */
141         if (host->h_nsmstate && host->h_nsmstate != argp->state) {
142                 resp->status = nlm_lck_denied_nolocks;
143         } else
144 #endif
145 
146         /* Now try to lock the file */
147         resp->status = nlmsvc_lock(rqstp, file, host, &argp->lock,
148                                         argp->block, &argp->cookie,
149                                         argp->reclaim);
150         if (resp->status == nlm_drop_reply)
151                 rc = rpc_drop_reply;
152         else
153                 dprintk("lockd: LOCK         status %d\n", ntohl(resp->status));
154 
155         nlmsvc_release_lockowner(&argp->lock);
156         nlmsvc_release_host(host);
157         nlm_release_file(file);
158         return rc;
159 }
160 
161 static __be32
162 nlm4svc_proc_lock(struct svc_rqst *rqstp)
163 {
164         return __nlm4svc_proc_lock(rqstp, rqstp->rq_resp);
165 }
166 
167 static __be32
168 __nlm4svc_proc_cancel(struct svc_rqst *rqstp, struct nlm_res *resp)
169 {
170         struct nlm_args *argp = rqstp->rq_argp;
171         struct nlm_host *host;
172         struct nlm_file *file;
173 
174         dprintk("lockd: CANCEL        called\n");
175 
176         resp->cookie = argp->cookie;
177 
178         /* Don't accept requests during grace period */
179         if (locks_in_grace(SVC_NET(rqstp))) {
180                 resp->status = nlm_lck_denied_grace_period;
181                 return rpc_success;
182         }
183 
184         /* Obtain client and file */
185         if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
186                 return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
187 
188         /* Try to cancel request. */
189         resp->status = nlmsvc_cancel_blocked(SVC_NET(rqstp), file, &argp->lock);
190 
191         dprintk("lockd: CANCEL        status %d\n", ntohl(resp->status));
192         nlmsvc_release_lockowner(&argp->lock);
193         nlmsvc_release_host(host);
194         nlm_release_file(file);
195         return rpc_success;
196 }
197 
198 static __be32
199 nlm4svc_proc_cancel(struct svc_rqst *rqstp)
200 {
201         return __nlm4svc_proc_cancel(rqstp, rqstp->rq_resp);
202 }
203 
204 /*
205  * UNLOCK: release a lock
206  */
207 static __be32
208 __nlm4svc_proc_unlock(struct svc_rqst *rqstp, struct nlm_res *resp)
209 {
210         struct nlm_args *argp = rqstp->rq_argp;
211         struct nlm_host *host;
212         struct nlm_file *file;
213 
214         dprintk("lockd: UNLOCK        called\n");
215 
216         resp->cookie = argp->cookie;
217 
218         /* Don't accept new lock requests during grace period */
219         if (locks_in_grace(SVC_NET(rqstp))) {
220                 resp->status = nlm_lck_denied_grace_period;
221                 return rpc_success;
222         }
223 
224         /* Obtain client and file */
225         if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
226                 return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
227 
228         /* Now try to remove the lock */
229         resp->status = nlmsvc_unlock(SVC_NET(rqstp), file, &argp->lock);
230 
231         dprintk("lockd: UNLOCK        status %d\n", ntohl(resp->status));
232         nlmsvc_release_lockowner(&argp->lock);
233         nlmsvc_release_host(host);
234         nlm_release_file(file);
235         return rpc_success;
236 }
237 
238 static __be32
239 nlm4svc_proc_unlock(struct svc_rqst *rqstp)
240 {
241         return __nlm4svc_proc_unlock(rqstp, rqstp->rq_resp);
242 }
243 
244 /*
245  * GRANTED: A server calls us to tell that a process' lock request
246  * was granted
247  */
248 static __be32
249 __nlm4svc_proc_granted(struct svc_rqst *rqstp, struct nlm_res *resp)
250 {
251         struct nlm_args *argp = rqstp->rq_argp;
252 
253         resp->cookie = argp->cookie;
254 
255         dprintk("lockd: GRANTED       called\n");
256         resp->status = nlmclnt_grant(svc_addr(rqstp), &argp->lock);
257         dprintk("lockd: GRANTED       status %d\n", ntohl(resp->status));
258         return rpc_success;
259 }
260 
261 static __be32
262 nlm4svc_proc_granted(struct svc_rqst *rqstp)
263 {
264         return __nlm4svc_proc_granted(rqstp, rqstp->rq_resp);
265 }
266 
267 /*
268  * This is the generic lockd callback for async RPC calls
269  */
270 static void nlm4svc_callback_exit(struct rpc_task *task, void *data)
271 {
272         dprintk("lockd: %5u callback returned %d\n", task->tk_pid,
273                         -task->tk_status);
274 }
275 
276 static void nlm4svc_callback_release(void *data)
277 {
278         nlmsvc_release_call(data);
279 }
280 
281 static const struct rpc_call_ops nlm4svc_callback_ops = {
282         .rpc_call_done = nlm4svc_callback_exit,
283         .rpc_release = nlm4svc_callback_release,
284 };
285 
286 /*
287  * `Async' versions of the above service routines. They aren't really,
288  * because we send the callback before the reply proper. I hope this
289  * doesn't break any clients.
290  */
291 static __be32 nlm4svc_callback(struct svc_rqst *rqstp, u32 proc,
292                 __be32 (*func)(struct svc_rqst *,  struct nlm_res *))
293 {
294         struct nlm_args *argp = rqstp->rq_argp;
295         struct nlm_host *host;
296         struct nlm_rqst *call;
297         __be32 stat;
298 
299         host = nlmsvc_lookup_host(rqstp,
300                                   argp->lock.caller,
301                                   argp->lock.len);
302         if (host == NULL)
303                 return rpc_system_err;
304 
305         call = nlm_alloc_call(host);
306         nlmsvc_release_host(host);
307         if (call == NULL)
308                 return rpc_system_err;
309 
310         stat = func(rqstp, &call->a_res);
311         if (stat != 0) {
312                 nlmsvc_release_call(call);
313                 return stat;
314         }
315 
316         call->a_flags = RPC_TASK_ASYNC;
317         if (nlm_async_reply(call, proc, &nlm4svc_callback_ops) < 0)
318                 return rpc_system_err;
319         return rpc_success;
320 }
321 
322 static __be32 nlm4svc_proc_test_msg(struct svc_rqst *rqstp)
323 {
324         dprintk("lockd: TEST_MSG      called\n");
325         return nlm4svc_callback(rqstp, NLMPROC_TEST_RES, __nlm4svc_proc_test);
326 }
327 
328 static __be32 nlm4svc_proc_lock_msg(struct svc_rqst *rqstp)
329 {
330         dprintk("lockd: LOCK_MSG      called\n");
331         return nlm4svc_callback(rqstp, NLMPROC_LOCK_RES, __nlm4svc_proc_lock);
332 }
333 
334 static __be32 nlm4svc_proc_cancel_msg(struct svc_rqst *rqstp)
335 {
336         dprintk("lockd: CANCEL_MSG    called\n");
337         return nlm4svc_callback(rqstp, NLMPROC_CANCEL_RES, __nlm4svc_proc_cancel);
338 }
339 
340 static __be32 nlm4svc_proc_unlock_msg(struct svc_rqst *rqstp)
341 {
342         dprintk("lockd: UNLOCK_MSG    called\n");
343         return nlm4svc_callback(rqstp, NLMPROC_UNLOCK_RES, __nlm4svc_proc_unlock);
344 }
345 
346 static __be32 nlm4svc_proc_granted_msg(struct svc_rqst *rqstp)
347 {
348         dprintk("lockd: GRANTED_MSG   called\n");
349         return nlm4svc_callback(rqstp, NLMPROC_GRANTED_RES, __nlm4svc_proc_granted);
350 }
351 
352 /*
353  * SHARE: create a DOS share or alter existing share.
354  */
355 static __be32
356 nlm4svc_proc_share(struct svc_rqst *rqstp)
357 {
358         struct nlm_args *argp = rqstp->rq_argp;
359         struct nlm_res *resp = rqstp->rq_resp;
360         struct nlm_host *host;
361         struct nlm_file *file;
362 
363         dprintk("lockd: SHARE         called\n");
364 
365         resp->cookie = argp->cookie;
366 
367         /* Don't accept new lock requests during grace period */
368         if (locks_in_grace(SVC_NET(rqstp)) && !argp->reclaim) {
369                 resp->status = nlm_lck_denied_grace_period;
370                 return rpc_success;
371         }
372 
373         /* Obtain client and file */
374         if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
375                 return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
376 
377         /* Now try to create the share */
378         resp->status = nlmsvc_share_file(host, file, argp);
379 
380         dprintk("lockd: SHARE         status %d\n", ntohl(resp->status));
381         nlmsvc_release_lockowner(&argp->lock);
382         nlmsvc_release_host(host);
383         nlm_release_file(file);
384         return rpc_success;
385 }
386 
387 /*
388  * UNSHARE: Release a DOS share.
389  */
390 static __be32
391 nlm4svc_proc_unshare(struct svc_rqst *rqstp)
392 {
393         struct nlm_args *argp = rqstp->rq_argp;
394         struct nlm_res *resp = rqstp->rq_resp;
395         struct nlm_host *host;
396         struct nlm_file *file;
397 
398         dprintk("lockd: UNSHARE       called\n");
399 
400         resp->cookie = argp->cookie;
401 
402         /* Don't accept requests during grace period */
403         if (locks_in_grace(SVC_NET(rqstp))) {
404                 resp->status = nlm_lck_denied_grace_period;
405                 return rpc_success;
406         }
407 
408         /* Obtain client and file */
409         if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
410                 return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
411 
412         /* Now try to lock the file */
413         resp->status = nlmsvc_unshare_file(host, file, argp);
414 
415         dprintk("lockd: UNSHARE       status %d\n", ntohl(resp->status));
416         nlmsvc_release_lockowner(&argp->lock);
417         nlmsvc_release_host(host);
418         nlm_release_file(file);
419         return rpc_success;
420 }
421 
422 /*
423  * NM_LOCK: Create an unmonitored lock
424  */
425 static __be32
426 nlm4svc_proc_nm_lock(struct svc_rqst *rqstp)
427 {
428         struct nlm_args *argp = rqstp->rq_argp;
429 
430         dprintk("lockd: NM_LOCK       called\n");
431 
432         argp->monitor = 0;              /* just clean the monitor flag */
433         return nlm4svc_proc_lock(rqstp);
434 }
435 
436 /*
437  * FREE_ALL: Release all locks and shares held by client
438  */
439 static __be32
440 nlm4svc_proc_free_all(struct svc_rqst *rqstp)
441 {
442         struct nlm_args *argp = rqstp->rq_argp;
443         struct nlm_host *host;
444 
445         /* Obtain client */
446         if (nlm4svc_retrieve_args(rqstp, argp, &host, NULL))
447                 return rpc_success;
448 
449         nlmsvc_free_host_resources(host);
450         nlmsvc_release_host(host);
451         return rpc_success;
452 }
453 
454 /*
455  * SM_NOTIFY: private callback from statd (not part of official NLM proto)
456  */
457 static __be32
458 nlm4svc_proc_sm_notify(struct svc_rqst *rqstp)
459 {
460         struct nlm_reboot *argp = rqstp->rq_argp;
461 
462         dprintk("lockd: SM_NOTIFY     called\n");
463 
464         if (!nlm_privileged_requester(rqstp)) {
465                 char buf[RPC_MAX_ADDRBUFLEN];
466                 printk(KERN_WARNING "lockd: rejected NSM callback from %s\n",
467                                 svc_print_addr(rqstp, buf, sizeof(buf)));
468                 return rpc_system_err;
469         }
470 
471         nlm_host_rebooted(SVC_NET(rqstp), argp);
472         return rpc_success;
473 }
474 
475 /*
476  * client sent a GRANTED_RES, let's remove the associated block
477  */
478 static __be32
479 nlm4svc_proc_granted_res(struct svc_rqst *rqstp)
480 {
481         struct nlm_res *argp = rqstp->rq_argp;
482 
483         if (!nlmsvc_ops)
484                 return rpc_success;
485 
486         dprintk("lockd: GRANTED_RES   called\n");
487 
488         nlmsvc_grant_reply(&argp->cookie, argp->status);
489         return rpc_success;
490 }
491 
492 static __be32
493 nlm4svc_proc_unused(struct svc_rqst *rqstp)
494 {
495         return rpc_proc_unavail;
496 }
497 
498 
499 /*
500  * NLM Server procedures.
501  */
502 
503 struct nlm_void                 { int dummy; };
504 
505 #define Ck      (1+XDR_QUADLEN(NLM_MAXCOOKIELEN))       /* cookie */
506 #define No      (1+1024/4)                              /* netobj */
507 #define St      1                                       /* status */
508 #define Rg      4                                       /* range (offset + length) */
509 
510 const struct svc_procedure nlmsvc_procedures4[24] = {
511         [NLMPROC_NULL] = {
512                 .pc_func = nlm4svc_proc_null,
513                 .pc_decode = nlm4svc_decode_void,
514                 .pc_encode = nlm4svc_encode_void,
515                 .pc_argsize = sizeof(struct nlm_void),
516                 .pc_ressize = sizeof(struct nlm_void),
517                 .pc_xdrressize = St,
518                 .pc_name = "NULL",
519         },
520         [NLMPROC_TEST] = {
521                 .pc_func = nlm4svc_proc_test,
522                 .pc_decode = nlm4svc_decode_testargs,
523                 .pc_encode = nlm4svc_encode_testres,
524                 .pc_argsize = sizeof(struct nlm_args),
525                 .pc_ressize = sizeof(struct nlm_res),
526                 .pc_xdrressize = Ck+St+2+No+Rg,
527                 .pc_name = "TEST",
528         },
529         [NLMPROC_LOCK] = {
530                 .pc_func = nlm4svc_proc_lock,
531                 .pc_decode = nlm4svc_decode_lockargs,
532                 .pc_encode = nlm4svc_encode_res,
533                 .pc_argsize = sizeof(struct nlm_args),
534                 .pc_ressize = sizeof(struct nlm_res),
535                 .pc_xdrressize = Ck+St,
536                 .pc_name = "LOCK",
537         },
538         [NLMPROC_CANCEL] = {
539                 .pc_func = nlm4svc_proc_cancel,
540                 .pc_decode = nlm4svc_decode_cancargs,
541                 .pc_encode = nlm4svc_encode_res,
542                 .pc_argsize = sizeof(struct nlm_args),
543                 .pc_ressize = sizeof(struct nlm_res),
544                 .pc_xdrressize = Ck+St,
545                 .pc_name = "CANCEL",
546         },
547         [NLMPROC_UNLOCK] = {
548                 .pc_func = nlm4svc_proc_unlock,
549                 .pc_decode = nlm4svc_decode_unlockargs,
550                 .pc_encode = nlm4svc_encode_res,
551                 .pc_argsize = sizeof(struct nlm_args),
552                 .pc_ressize = sizeof(struct nlm_res),
553                 .pc_xdrressize = Ck+St,
554                 .pc_name = "UNLOCK",
555         },
556         [NLMPROC_GRANTED] = {
557                 .pc_func = nlm4svc_proc_granted,
558                 .pc_decode = nlm4svc_decode_testargs,
559                 .pc_encode = nlm4svc_encode_res,
560                 .pc_argsize = sizeof(struct nlm_args),
561                 .pc_ressize = sizeof(struct nlm_res),
562                 .pc_xdrressize = Ck+St,
563                 .pc_name = "GRANTED",
564         },
565         [NLMPROC_TEST_MSG] = {
566                 .pc_func = nlm4svc_proc_test_msg,
567                 .pc_decode = nlm4svc_decode_testargs,
568                 .pc_encode = nlm4svc_encode_void,
569                 .pc_argsize = sizeof(struct nlm_args),
570                 .pc_ressize = sizeof(struct nlm_void),
571                 .pc_xdrressize = St,
572                 .pc_name = "TEST_MSG",
573         },
574         [NLMPROC_LOCK_MSG] = {
575                 .pc_func = nlm4svc_proc_lock_msg,
576                 .pc_decode = nlm4svc_decode_lockargs,
577                 .pc_encode = nlm4svc_encode_void,
578                 .pc_argsize = sizeof(struct nlm_args),
579                 .pc_ressize = sizeof(struct nlm_void),
580                 .pc_xdrressize = St,
581                 .pc_name = "LOCK_MSG",
582         },
583         [NLMPROC_CANCEL_MSG] = {
584                 .pc_func = nlm4svc_proc_cancel_msg,
585                 .pc_decode = nlm4svc_decode_cancargs,
586                 .pc_encode = nlm4svc_encode_void,
587                 .pc_argsize = sizeof(struct nlm_args),
588                 .pc_ressize = sizeof(struct nlm_void),
589                 .pc_xdrressize = St,
590                 .pc_name = "CANCEL_MSG",
591         },
592         [NLMPROC_UNLOCK_MSG] = {
593                 .pc_func = nlm4svc_proc_unlock_msg,
594                 .pc_decode = nlm4svc_decode_unlockargs,
595                 .pc_encode = nlm4svc_encode_void,
596                 .pc_argsize = sizeof(struct nlm_args),
597                 .pc_ressize = sizeof(struct nlm_void),
598                 .pc_xdrressize = St,
599                 .pc_name = "UNLOCK_MSG",
600         },
601         [NLMPROC_GRANTED_MSG] = {
602                 .pc_func = nlm4svc_proc_granted_msg,
603                 .pc_decode = nlm4svc_decode_testargs,
604                 .pc_encode = nlm4svc_encode_void,
605                 .pc_argsize = sizeof(struct nlm_args),
606                 .pc_ressize = sizeof(struct nlm_void),
607                 .pc_xdrressize = St,
608                 .pc_name = "GRANTED_MSG",
609         },
610         [NLMPROC_TEST_RES] = {
611                 .pc_func = nlm4svc_proc_null,
612                 .pc_decode = nlm4svc_decode_void,
613                 .pc_encode = nlm4svc_encode_void,
614                 .pc_argsize = sizeof(struct nlm_res),
615                 .pc_ressize = sizeof(struct nlm_void),
616                 .pc_xdrressize = St,
617                 .pc_name = "TEST_RES",
618         },
619         [NLMPROC_LOCK_RES] = {
620                 .pc_func = nlm4svc_proc_null,
621                 .pc_decode = nlm4svc_decode_void,
622                 .pc_encode = nlm4svc_encode_void,
623                 .pc_argsize = sizeof(struct nlm_res),
624                 .pc_ressize = sizeof(struct nlm_void),
625                 .pc_xdrressize = St,
626                 .pc_name = "LOCK_RES",
627         },
628         [NLMPROC_CANCEL_RES] = {
629                 .pc_func = nlm4svc_proc_null,
630                 .pc_decode = nlm4svc_decode_void,
631                 .pc_encode = nlm4svc_encode_void,
632                 .pc_argsize = sizeof(struct nlm_res),
633                 .pc_ressize = sizeof(struct nlm_void),
634                 .pc_xdrressize = St,
635                 .pc_name = "CANCEL_RES",
636         },
637         [NLMPROC_UNLOCK_RES] = {
638                 .pc_func = nlm4svc_proc_null,
639                 .pc_decode = nlm4svc_decode_void,
640                 .pc_encode = nlm4svc_encode_void,
641                 .pc_argsize = sizeof(struct nlm_res),
642                 .pc_ressize = sizeof(struct nlm_void),
643                 .pc_xdrressize = St,
644                 .pc_name = "UNLOCK_RES",
645         },
646         [NLMPROC_GRANTED_RES] = {
647                 .pc_func = nlm4svc_proc_granted_res,
648                 .pc_decode = nlm4svc_decode_res,
649                 .pc_encode = nlm4svc_encode_void,
650                 .pc_argsize = sizeof(struct nlm_res),
651                 .pc_ressize = sizeof(struct nlm_void),
652                 .pc_xdrressize = St,
653                 .pc_name = "GRANTED_RES",
654         },
655         [NLMPROC_NSM_NOTIFY] = {
656                 .pc_func = nlm4svc_proc_sm_notify,
657                 .pc_decode = nlm4svc_decode_reboot,
658                 .pc_encode = nlm4svc_encode_void,
659                 .pc_argsize = sizeof(struct nlm_reboot),
660                 .pc_ressize = sizeof(struct nlm_void),
661                 .pc_xdrressize = St,
662                 .pc_name = "SM_NOTIFY",
663         },
664         [17] = {
665                 .pc_func = nlm4svc_proc_unused,
666                 .pc_decode = nlm4svc_decode_void,
667                 .pc_encode = nlm4svc_encode_void,
668                 .pc_argsize = sizeof(struct nlm_void),
669                 .pc_ressize = sizeof(struct nlm_void),
670                 .pc_xdrressize = 0,
671                 .pc_name = "UNUSED",
672         },
673         [18] = {
674                 .pc_func = nlm4svc_proc_unused,
675                 .pc_decode = nlm4svc_decode_void,
676                 .pc_encode = nlm4svc_encode_void,
677                 .pc_argsize = sizeof(struct nlm_void),
678                 .pc_ressize = sizeof(struct nlm_void),
679                 .pc_xdrressize = 0,
680                 .pc_name = "UNUSED",
681         },
682         [19] = {
683                 .pc_func = nlm4svc_proc_unused,
684                 .pc_decode = nlm4svc_decode_void,
685                 .pc_encode = nlm4svc_encode_void,
686                 .pc_argsize = sizeof(struct nlm_void),
687                 .pc_ressize = sizeof(struct nlm_void),
688                 .pc_xdrressize = 0,
689                 .pc_name = "UNUSED",
690         },
691         [NLMPROC_SHARE] = {
692                 .pc_func = nlm4svc_proc_share,
693                 .pc_decode = nlm4svc_decode_shareargs,
694                 .pc_encode = nlm4svc_encode_shareres,
695                 .pc_argsize = sizeof(struct nlm_args),
696                 .pc_ressize = sizeof(struct nlm_res),
697                 .pc_xdrressize = Ck+St+1,
698                 .pc_name = "SHARE",
699         },
700         [NLMPROC_UNSHARE] = {
701                 .pc_func = nlm4svc_proc_unshare,
702                 .pc_decode = nlm4svc_decode_shareargs,
703                 .pc_encode = nlm4svc_encode_shareres,
704                 .pc_argsize = sizeof(struct nlm_args),
705                 .pc_ressize = sizeof(struct nlm_res),
706                 .pc_xdrressize = Ck+St+1,
707                 .pc_name = "UNSHARE",
708         },
709         [NLMPROC_NM_LOCK] = {
710                 .pc_func = nlm4svc_proc_nm_lock,
711                 .pc_decode = nlm4svc_decode_lockargs,
712                 .pc_encode = nlm4svc_encode_res,
713                 .pc_argsize = sizeof(struct nlm_args),
714                 .pc_ressize = sizeof(struct nlm_res),
715                 .pc_xdrressize = Ck+St,
716                 .pc_name = "NM_LOCK",
717         },
718         [NLMPROC_FREE_ALL] = {
719                 .pc_func = nlm4svc_proc_free_all,
720                 .pc_decode = nlm4svc_decode_notify,
721                 .pc_encode = nlm4svc_encode_void,
722                 .pc_argsize = sizeof(struct nlm_args),
723                 .pc_ressize = sizeof(struct nlm_void),
724                 .pc_xdrressize = St,
725                 .pc_name = "FREE_ALL",
726         },
727 };
728 

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