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