LXR linux/fs/lockd/svc4proc.c

   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 */
  22static __be32
  23nlm4svc_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
  64no_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 */
  74static __be32
  75nlm4svc_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 */
  84static __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
 112static __be32
 113nlm4svc_proc_test(struct svc_rqst *rqstp)
 114{
 115        return __nlm4svc_proc_test(rqstp, rqstp->rq_resp);
 116}
 117
 118static __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
 161static __be32
 162nlm4svc_proc_lock(struct svc_rqst *rqstp)
 163{
 164        return __nlm4svc_proc_lock(rqstp, rqstp->rq_resp);
 165}
 166
 167static __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
 198static __be32
 199nlm4svc_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 */
 207static __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
 238static __be32
 239nlm4svc_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 */
 248static __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
 261static __be32
 262nlm4svc_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 */
 270static void nlm4svc_callback_exit(struct rpc_task *task, void *data)
 271{
 272}
 273
 274static void nlm4svc_callback_release(void *data)
 275{
 276        nlmsvc_release_call(data);
 277}
 278
 279static const struct rpc_call_ops nlm4svc_callback_ops = {
 280        .rpc_call_done = nlm4svc_callback_exit,
 281        .rpc_release = nlm4svc_callback_release,
 282};
 283
 284/*
 285 * `Async' versions of the above service routines. They aren't really,
 286 * because we send the callback before the reply proper. I hope this
 287 * doesn't break any clients.
 288 */
 289static __be32 nlm4svc_callback(struct svc_rqst *rqstp, u32 proc,
 290                __be32 (*func)(struct svc_rqst *,  struct nlm_res *))
 291{
 292        struct nlm_args *argp = rqstp->rq_argp;
 293        struct nlm_host *host;
 294        struct nlm_rqst *call;
 295        __be32 stat;
 296
 297        host = nlmsvc_lookup_host(rqstp,
 298                                  argp->lock.caller,
 299                                  argp->lock.len);
 300        if (host == NULL)
 301                return rpc_system_err;
 302
 303        call = nlm_alloc_call(host);
 304        nlmsvc_release_host(host);
 305        if (call == NULL)
 306                return rpc_system_err;
 307
 308        stat = func(rqstp, &call->a_res);
 309        if (stat != 0) {
 310                nlmsvc_release_call(call);
 311                return stat;
 312        }
 313
 314        call->a_flags = RPC_TASK_ASYNC;
 315        if (nlm_async_reply(call, proc, &nlm4svc_callback_ops) < 0)
 316                return rpc_system_err;
 317        return rpc_success;
 318}
 319
 320static __be32 nlm4svc_proc_test_msg(struct svc_rqst *rqstp)
 321{
 322        dprintk("lockd: TEST_MSG      called\n");
 323        return nlm4svc_callback(rqstp, NLMPROC_TEST_RES, __nlm4svc_proc_test);
 324}
 325
 326static __be32 nlm4svc_proc_lock_msg(struct svc_rqst *rqstp)
 327{
 328        dprintk("lockd: LOCK_MSG      called\n");
 329        return nlm4svc_callback(rqstp, NLMPROC_LOCK_RES, __nlm4svc_proc_lock);
 330}
 331
 332static __be32 nlm4svc_proc_cancel_msg(struct svc_rqst *rqstp)
 333{
 334        dprintk("lockd: CANCEL_MSG    called\n");
 335        return nlm4svc_callback(rqstp, NLMPROC_CANCEL_RES, __nlm4svc_proc_cancel);
 336}
 337
 338static __be32 nlm4svc_proc_unlock_msg(struct svc_rqst *rqstp)
 339{
 340        dprintk("lockd: UNLOCK_MSG    called\n");
 341        return nlm4svc_callback(rqstp, NLMPROC_UNLOCK_RES, __nlm4svc_proc_unlock);
 342}
 343
 344static __be32 nlm4svc_proc_granted_msg(struct svc_rqst *rqstp)
 345{
 346        dprintk("lockd: GRANTED_MSG   called\n");
 347        return nlm4svc_callback(rqstp, NLMPROC_GRANTED_RES, __nlm4svc_proc_granted);
 348}
 349
 350/*
 351 * SHARE: create a DOS share or alter existing share.
 352 */
 353static __be32
 354nlm4svc_proc_share(struct svc_rqst *rqstp)
 355{
 356        struct nlm_args *argp = rqstp->rq_argp;
 357        struct nlm_res *resp = rqstp->rq_resp;
 358        struct nlm_host *host;
 359        struct nlm_file *file;
 360
 361        dprintk("lockd: SHARE         called\n");
 362
 363        resp->cookie = argp->cookie;
 364
 365        /* Don't accept new lock requests during grace period */
 366        if (locks_in_grace(SVC_NET(rqstp)) && !argp->reclaim) {
 367                resp->status = nlm_lck_denied_grace_period;
 368                return rpc_success;
 369        }
 370
 371        /* Obtain client and file */
 372        if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
 373                return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
 374
 375        /* Now try to create the share */
 376        resp->status = nlmsvc_share_file(host, file, argp);
 377
 378        dprintk("lockd: SHARE         status %d\n", ntohl(resp->status));
 379        nlmsvc_release_lockowner(&argp->lock);
 380        nlmsvc_release_host(host);
 381        nlm_release_file(file);
 382        return rpc_success;
 383}
 384
 385/*
 386 * UNSHARE: Release a DOS share.
 387 */
 388static __be32
 389nlm4svc_proc_unshare(struct svc_rqst *rqstp)
 390{
 391        struct nlm_args *argp = rqstp->rq_argp;
 392        struct nlm_res *resp = rqstp->rq_resp;
 393        struct nlm_host *host;
 394        struct nlm_file *file;
 395
 396        dprintk("lockd: UNSHARE       called\n");
 397
 398        resp->cookie = argp->cookie;
 399
 400        /* Don't accept requests during grace period */
 401        if (locks_in_grace(SVC_NET(rqstp))) {
 402                resp->status = nlm_lck_denied_grace_period;
 403                return rpc_success;
 404        }
 405
 406        /* Obtain client and file */
 407        if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
 408                return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
 409
 410        /* Now try to lock the file */
 411        resp->status = nlmsvc_unshare_file(host, file, argp);
 412
 413        dprintk("lockd: UNSHARE       status %d\n", ntohl(resp->status));
 414        nlmsvc_release_lockowner(&argp->lock);
 415        nlmsvc_release_host(host);
 416        nlm_release_file(file);
 417        return rpc_success;
 418}
 419
 420/*
 421 * NM_LOCK: Create an unmonitored lock
 422 */
 423static __be32
 424nlm4svc_proc_nm_lock(struct svc_rqst *rqstp)
 425{
 426        struct nlm_args *argp = rqstp->rq_argp;
 427
 428        dprintk("lockd: NM_LOCK       called\n");
 429
 430        argp->monitor = 0;              /* just clean the monitor flag */
 431        return nlm4svc_proc_lock(rqstp);
 432}
 433
 434/*
 435 * FREE_ALL: Release all locks and shares held by client
 436 */
 437static __be32
 438nlm4svc_proc_free_all(struct svc_rqst *rqstp)
 439{
 440        struct nlm_args *argp = rqstp->rq_argp;
 441        struct nlm_host *host;
 442
 443        /* Obtain client */
 444        if (nlm4svc_retrieve_args(rqstp, argp, &host, NULL))
 445                return rpc_success;
 446
 447        nlmsvc_free_host_resources(host);
 448        nlmsvc_release_host(host);
 449        return rpc_success;
 450}
 451
 452/*
 453 * SM_NOTIFY: private callback from statd (not part of official NLM proto)
 454 */
 455static __be32
 456nlm4svc_proc_sm_notify(struct svc_rqst *rqstp)
 457{
 458        struct nlm_reboot *argp = rqstp->rq_argp;
 459
 460        dprintk("lockd: SM_NOTIFY     called\n");
 461
 462        if (!nlm_privileged_requester(rqstp)) {
 463                char buf[RPC_MAX_ADDRBUFLEN];
 464                printk(KERN_WARNING "lockd: rejected NSM callback from %s\n",
 465                                svc_print_addr(rqstp, buf, sizeof(buf)));
 466                return rpc_system_err;
 467        }
 468
 469        nlm_host_rebooted(SVC_NET(rqstp), argp);
 470        return rpc_success;
 471}
 472
 473/*
 474 * client sent a GRANTED_RES, let's remove the associated block
 475 */
 476static __be32
 477nlm4svc_proc_granted_res(struct svc_rqst *rqstp)
 478{
 479        struct nlm_res *argp = rqstp->rq_argp;
 480
 481        if (!nlmsvc_ops)
 482                return rpc_success;
 483
 484        dprintk("lockd: GRANTED_RES   called\n");
 485
 486        nlmsvc_grant_reply(&argp->cookie, argp->status);
 487        return rpc_success;
 488}
 489
 490static __be32
 491nlm4svc_proc_unused(struct svc_rqst *rqstp)
 492{
 493        return rpc_proc_unavail;
 494}
 495
 496
 497/*
 498 * NLM Server procedures.
 499 */
 500
 501struct nlm_void                 { int dummy; };
 502
 503#define Ck      (1+XDR_QUADLEN(NLM_MAXCOOKIELEN))       /* cookie */
 504#define No      (1+1024/4)                              /* netobj */
 505#define St      1                                       /* status */
 506#define Rg      4                                       /* range (offset + length) */
 507
 508const struct svc_procedure nlmsvc_procedures4[24] = {
 509        [NLMPROC_NULL] = {
 510                .pc_func = nlm4svc_proc_null,
 511                .pc_decode = nlm4svc_decode_void,
 512                .pc_encode = nlm4svc_encode_void,
 513                .pc_argsize = sizeof(struct nlm_void),
 514                .pc_ressize = sizeof(struct nlm_void),
 515                .pc_xdrressize = St,
 516                .pc_name = "NULL",
 517        },
 518        [NLMPROC_TEST] = {
 519                .pc_func = nlm4svc_proc_test,
 520                .pc_decode = nlm4svc_decode_testargs,
 521                .pc_encode = nlm4svc_encode_testres,
 522                .pc_argsize = sizeof(struct nlm_args),
 523                .pc_ressize = sizeof(struct nlm_res),
 524                .pc_xdrressize = Ck+St+2+No+Rg,
 525                .pc_name = "TEST",
 526        },
 527        [NLMPROC_LOCK] = {
 528                .pc_func = nlm4svc_proc_lock,
 529                .pc_decode = nlm4svc_decode_lockargs,
 530                .pc_encode = nlm4svc_encode_res,
 531                .pc_argsize = sizeof(struct nlm_args),
 532                .pc_ressize = sizeof(struct nlm_res),
 533                .pc_xdrressize = Ck+St,
 534                .pc_name = "LOCK",
 535        },
 536        [NLMPROC_CANCEL] = {
 537                .pc_func = nlm4svc_proc_cancel,
 538                .pc_decode = nlm4svc_decode_cancargs,
 539                .pc_encode = nlm4svc_encode_res,
 540                .pc_argsize = sizeof(struct nlm_args),
 541                .pc_ressize = sizeof(struct nlm_res),
 542                .pc_xdrressize = Ck+St,
 543                .pc_name = "CANCEL",
 544        },
 545        [NLMPROC_UNLOCK] = {
 546                .pc_func = nlm4svc_proc_unlock,
 547                .pc_decode = nlm4svc_decode_unlockargs,
 548                .pc_encode = nlm4svc_encode_res,
 549                .pc_argsize = sizeof(struct nlm_args),
 550                .pc_ressize = sizeof(struct nlm_res),
 551                .pc_xdrressize = Ck+St,
 552                .pc_name = "UNLOCK",
 553        },
 554        [NLMPROC_GRANTED] = {
 555                .pc_func = nlm4svc_proc_granted,
 556                .pc_decode = nlm4svc_decode_testargs,
 557                .pc_encode = nlm4svc_encode_res,
 558                .pc_argsize = sizeof(struct nlm_args),
 559                .pc_ressize = sizeof(struct nlm_res),
 560                .pc_xdrressize = Ck+St,
 561                .pc_name = "GRANTED",
 562        },
 563        [NLMPROC_TEST_MSG] = {
 564                .pc_func = nlm4svc_proc_test_msg,
 565                .pc_decode = nlm4svc_decode_testargs,
 566                .pc_encode = nlm4svc_encode_void,
 567                .pc_argsize = sizeof(struct nlm_args),
 568                .pc_ressize = sizeof(struct nlm_void),
 569                .pc_xdrressize = St,
 570                .pc_name = "TEST_MSG",
 571        },
 572        [NLMPROC_LOCK_MSG] = {
 573                .pc_func = nlm4svc_proc_lock_msg,
 574                .pc_decode = nlm4svc_decode_lockargs,
 575                .pc_encode = nlm4svc_encode_void,
 576                .pc_argsize = sizeof(struct nlm_args),
 577                .pc_ressize = sizeof(struct nlm_void),
 578                .pc_xdrressize = St,
 579                .pc_name = "LOCK_MSG",
 580        },
 581        [NLMPROC_CANCEL_MSG] = {
 582                .pc_func = nlm4svc_proc_cancel_msg,
 583                .pc_decode = nlm4svc_decode_cancargs,
 584                .pc_encode = nlm4svc_encode_void,
 585                .pc_argsize = sizeof(struct nlm_args),
 586                .pc_ressize = sizeof(struct nlm_void),
 587                .pc_xdrressize = St,
 588                .pc_name = "CANCEL_MSG",
 589        },
 590        [NLMPROC_UNLOCK_MSG] = {
 591                .pc_func = nlm4svc_proc_unlock_msg,
 592                .pc_decode = nlm4svc_decode_unlockargs,
 593                .pc_encode = nlm4svc_encode_void,
 594                .pc_argsize = sizeof(struct nlm_args),
 595                .pc_ressize = sizeof(struct nlm_void),
 596                .pc_xdrressize = St,
 597                .pc_name = "UNLOCK_MSG",
 598        },
 599        [NLMPROC_GRANTED_MSG] = {
 600                .pc_func = nlm4svc_proc_granted_msg,
 601                .pc_decode = nlm4svc_decode_testargs,
 602                .pc_encode = nlm4svc_encode_void,
 603                .pc_argsize = sizeof(struct nlm_args),
 604                .pc_ressize = sizeof(struct nlm_void),
 605                .pc_xdrressize = St,
 606                .pc_name = "GRANTED_MSG",
 607        },
 608        [NLMPROC_TEST_RES] = {
 609                .pc_func = nlm4svc_proc_null,
 610                .pc_decode = nlm4svc_decode_void,
 611                .pc_encode = nlm4svc_encode_void,
 612                .pc_argsize = sizeof(struct nlm_res),
 613                .pc_ressize = sizeof(struct nlm_void),
 614                .pc_xdrressize = St,
 615                .pc_name = "TEST_RES",
 616        },
 617        [NLMPROC_LOCK_RES] = {
 618                .pc_func = nlm4svc_proc_null,
 619                .pc_decode = nlm4svc_decode_void,
 620                .pc_encode = nlm4svc_encode_void,
 621                .pc_argsize = sizeof(struct nlm_res),
 622                .pc_ressize = sizeof(struct nlm_void),
 623                .pc_xdrressize = St,
 624                .pc_name = "LOCK_RES",
 625        },
 626        [NLMPROC_CANCEL_RES] = {
 627                .pc_func = nlm4svc_proc_null,
 628                .pc_decode = nlm4svc_decode_void,
 629                .pc_encode = nlm4svc_encode_void,
 630                .pc_argsize = sizeof(struct nlm_res),
 631                .pc_ressize = sizeof(struct nlm_void),
 632                .pc_xdrressize = St,
 633                .pc_name = "CANCEL_RES",
 634        },
 635        [NLMPROC_UNLOCK_RES] = {
 636                .pc_func = nlm4svc_proc_null,
 637                .pc_decode = nlm4svc_decode_void,
 638                .pc_encode = nlm4svc_encode_void,
 639                .pc_argsize = sizeof(struct nlm_res),
 640                .pc_ressize = sizeof(struct nlm_void),
 641                .pc_xdrressize = St,
 642                .pc_name = "UNLOCK_RES",
 643        },
 644        [NLMPROC_GRANTED_RES] = {
 645                .pc_func = nlm4svc_proc_granted_res,
 646                .pc_decode = nlm4svc_decode_res,
 647                .pc_encode = nlm4svc_encode_void,
 648                .pc_argsize = sizeof(struct nlm_res),
 649                .pc_ressize = sizeof(struct nlm_void),
 650                .pc_xdrressize = St,
 651                .pc_name = "GRANTED_RES",
 652        },
 653        [NLMPROC_NSM_NOTIFY] = {
 654                .pc_func = nlm4svc_proc_sm_notify,
 655                .pc_decode = nlm4svc_decode_reboot,
 656                .pc_encode = nlm4svc_encode_void,
 657                .pc_argsize = sizeof(struct nlm_reboot),
 658                .pc_ressize = sizeof(struct nlm_void),
 659                .pc_xdrressize = St,
 660                .pc_name = "SM_NOTIFY",
 661        },
 662        [17] = {
 663                .pc_func = nlm4svc_proc_unused,
 664                .pc_decode = nlm4svc_decode_void,
 665                .pc_encode = nlm4svc_encode_void,
 666                .pc_argsize = sizeof(struct nlm_void),
 667                .pc_ressize = sizeof(struct nlm_void),
 668                .pc_xdrressize = 0,
 669                .pc_name = "UNUSED",
 670        },
 671        [18] = {
 672                .pc_func = nlm4svc_proc_unused,
 673                .pc_decode = nlm4svc_decode_void,
 674                .pc_encode = nlm4svc_encode_void,
 675                .pc_argsize = sizeof(struct nlm_void),
 676                .pc_ressize = sizeof(struct nlm_void),
 677                .pc_xdrressize = 0,
 678                .pc_name = "UNUSED",
 679        },
 680        [19] = {
 681                .pc_func = nlm4svc_proc_unused,
 682                .pc_decode = nlm4svc_decode_void,
 683                .pc_encode = nlm4svc_encode_void,
 684                .pc_argsize = sizeof(struct nlm_void),
 685                .pc_ressize = sizeof(struct nlm_void),
 686                .pc_xdrressize = 0,
 687                .pc_name = "UNUSED",
 688        },
 689        [NLMPROC_SHARE] = {
 690                .pc_func = nlm4svc_proc_share,
 691                .pc_decode = nlm4svc_decode_shareargs,
 692                .pc_encode = nlm4svc_encode_shareres,
 693                .pc_argsize = sizeof(struct nlm_args),
 694                .pc_ressize = sizeof(struct nlm_res),
 695                .pc_xdrressize = Ck+St+1,
 696                .pc_name = "SHARE",
 697        },
 698        [NLMPROC_UNSHARE] = {
 699                .pc_func = nlm4svc_proc_unshare,
 700                .pc_decode = nlm4svc_decode_shareargs,
 701                .pc_encode = nlm4svc_encode_shareres,
 702                .pc_argsize = sizeof(struct nlm_args),
 703                .pc_ressize = sizeof(struct nlm_res),
 704                .pc_xdrressize = Ck+St+1,
 705                .pc_name = "UNSHARE",
 706        },
 707        [NLMPROC_NM_LOCK] = {
 708                .pc_func = nlm4svc_proc_nm_lock,
 709                .pc_decode = nlm4svc_decode_lockargs,
 710                .pc_encode = nlm4svc_encode_res,
 711                .pc_argsize = sizeof(struct nlm_args),
 712                .pc_ressize = sizeof(struct nlm_res),
 713                .pc_xdrressize = Ck+St,
 714                .pc_name = "NM_LOCK",
 715        },
 716        [NLMPROC_FREE_ALL] = {
 717                .pc_func = nlm4svc_proc_free_all,
 718                .pc_decode = nlm4svc_decode_notify,
 719                .pc_encode = nlm4svc_encode_void,
 720                .pc_argsize = sizeof(struct nlm_args),
 721                .pc_ressize = sizeof(struct nlm_void),
 722                .pc_xdrressize = St,
 723                .pc_name = "FREE_ALL",
 724        },
 725};
 726