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 }, 516 [NLMPROC_TEST] = { 517 .pc_func = nlm4svc_proc_test, 518 .pc_decode = nlm4svc_decode_testargs, 519 .pc_encode = nlm4svc_encode_testres, 520 .pc_argsize = sizeof(struct nlm_args), 521 .pc_ressize = sizeof(struct nlm_res), 522 .pc_xdrressize = Ck+St+2+No+Rg, 523 }, 524 [NLMPROC_LOCK] = { 525 .pc_func = nlm4svc_proc_lock, 526 .pc_decode = nlm4svc_decode_lockargs, 527 .pc_encode = nlm4svc_encode_res, 528 .pc_argsize = sizeof(struct nlm_args), 529 .pc_ressize = sizeof(struct nlm_res), 530 .pc_xdrressize = Ck+St, 531 }, 532 [NLMPROC_CANCEL] = { 533 .pc_func = nlm4svc_proc_cancel, 534 .pc_decode = nlm4svc_decode_cancargs, 535 .pc_encode = nlm4svc_encode_res, 536 .pc_argsize = sizeof(struct nlm_args), 537 .pc_ressize = sizeof(struct nlm_res), 538 .pc_xdrressize = Ck+St, 539 }, 540 [NLMPROC_UNLOCK] = { 541 .pc_func = nlm4svc_proc_unlock, 542 .pc_decode = nlm4svc_decode_unlockargs, 543 .pc_encode = nlm4svc_encode_res, 544 .pc_argsize = sizeof(struct nlm_args), 545 .pc_ressize = sizeof(struct nlm_res), 546 .pc_xdrressize = Ck+St, 547 }, 548 [NLMPROC_GRANTED] = { 549 .pc_func = nlm4svc_proc_granted, 550 .pc_decode = nlm4svc_decode_testargs, 551 .pc_encode = nlm4svc_encode_res, 552 .pc_argsize = sizeof(struct nlm_args), 553 .pc_ressize = sizeof(struct nlm_res), 554 .pc_xdrressize = Ck+St, 555 }, 556 [NLMPROC_TEST_MSG] = { 557 .pc_func = nlm4svc_proc_test_msg, 558 .pc_decode = nlm4svc_decode_testargs, 559 .pc_encode = nlm4svc_encode_void, 560 .pc_argsize = sizeof(struct nlm_args), 561 .pc_ressize = sizeof(struct nlm_void), 562 .pc_xdrressize = St, 563 }, 564 [NLMPROC_LOCK_MSG] = { 565 .pc_func = nlm4svc_proc_lock_msg, 566 .pc_decode = nlm4svc_decode_lockargs, 567 .pc_encode = nlm4svc_encode_void, 568 .pc_argsize = sizeof(struct nlm_args), 569 .pc_ressize = sizeof(struct nlm_void), 570 .pc_xdrressize = St, 571 }, 572 [NLMPROC_CANCEL_MSG] = { 573 .pc_func = nlm4svc_proc_cancel_msg, 574 .pc_decode = nlm4svc_decode_cancargs, 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 }, 580 [NLMPROC_UNLOCK_MSG] = { 581 .pc_func = nlm4svc_proc_unlock_msg, 582 .pc_decode = nlm4svc_decode_unlockargs, 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 }, 588 [NLMPROC_GRANTED_MSG] = { 589 .pc_func = nlm4svc_proc_granted_msg, 590 .pc_decode = nlm4svc_decode_testargs, 591 .pc_encode = nlm4svc_encode_void, 592 .pc_argsize = sizeof(struct nlm_args), 593 .pc_ressize = sizeof(struct nlm_void), 594 .pc_xdrressize = St, 595 }, 596 [NLMPROC_TEST_RES] = { 597 .pc_func = nlm4svc_proc_null, 598 .pc_decode = nlm4svc_decode_void, 599 .pc_encode = nlm4svc_encode_void, 600 .pc_argsize = sizeof(struct nlm_res), 601 .pc_ressize = sizeof(struct nlm_void), 602 .pc_xdrressize = St, 603 }, 604 [NLMPROC_LOCK_RES] = { 605 .pc_func = nlm4svc_proc_null, 606 .pc_decode = nlm4svc_decode_void, 607 .pc_encode = nlm4svc_encode_void, 608 .pc_argsize = sizeof(struct nlm_res), 609 .pc_ressize = sizeof(struct nlm_void), 610 .pc_xdrressize = St, 611 }, 612 [NLMPROC_CANCEL_RES] = { 613 .pc_func = nlm4svc_proc_null, 614 .pc_decode = nlm4svc_decode_void, 615 .pc_encode = nlm4svc_encode_void, 616 .pc_argsize = sizeof(struct nlm_res), 617 .pc_ressize = sizeof(struct nlm_void), 618 .pc_xdrressize = St, 619 }, 620 [NLMPROC_UNLOCK_RES] = { 621 .pc_func = nlm4svc_proc_null, 622 .pc_decode = nlm4svc_decode_void, 623 .pc_encode = nlm4svc_encode_void, 624 .pc_argsize = sizeof(struct nlm_res), 625 .pc_ressize = sizeof(struct nlm_void), 626 .pc_xdrressize = St, 627 }, 628 [NLMPROC_GRANTED_RES] = { 629 .pc_func = nlm4svc_proc_granted_res, 630 .pc_decode = nlm4svc_decode_res, 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 }, 636 [NLMPROC_NSM_NOTIFY] = { 637 .pc_func = nlm4svc_proc_sm_notify, 638 .pc_decode = nlm4svc_decode_reboot, 639 .pc_encode = nlm4svc_encode_void, 640 .pc_argsize = sizeof(struct nlm_reboot), 641 .pc_ressize = sizeof(struct nlm_void), 642 .pc_xdrressize = St, 643 }, 644 [17] = { 645 .pc_func = nlm4svc_proc_unused, 646 .pc_decode = nlm4svc_decode_void, 647 .pc_encode = nlm4svc_encode_void, 648 .pc_argsize = sizeof(struct nlm_void), 649 .pc_ressize = sizeof(struct nlm_void), 650 .pc_xdrressize = 0, 651 }, 652 [18] = { 653 .pc_func = nlm4svc_proc_unused, 654 .pc_decode = nlm4svc_decode_void, 655 .pc_encode = nlm4svc_encode_void, 656 .pc_argsize = sizeof(struct nlm_void), 657 .pc_ressize = sizeof(struct nlm_void), 658 .pc_xdrressize = 0, 659 }, 660 [19] = { 661 .pc_func = nlm4svc_proc_unused, 662 .pc_decode = nlm4svc_decode_void, 663 .pc_encode = nlm4svc_encode_void, 664 .pc_argsize = sizeof(struct nlm_void), 665 .pc_ressize = sizeof(struct nlm_void), 666 .pc_xdrressize = 0, 667 }, 668 [NLMPROC_SHARE] = { 669 .pc_func = nlm4svc_proc_share, 670 .pc_decode = nlm4svc_decode_shareargs, 671 .pc_encode = nlm4svc_encode_shareres, 672 .pc_argsize = sizeof(struct nlm_args), 673 .pc_ressize = sizeof(struct nlm_res), 674 .pc_xdrressize = Ck+St+1, 675 }, 676 [NLMPROC_UNSHARE] = { 677 .pc_func = nlm4svc_proc_unshare, 678 .pc_decode = nlm4svc_decode_shareargs, 679 .pc_encode = nlm4svc_encode_shareres, 680 .pc_argsize = sizeof(struct nlm_args), 681 .pc_ressize = sizeof(struct nlm_res), 682 .pc_xdrressize = Ck+St+1, 683 }, 684 [NLMPROC_NM_LOCK] = { 685 .pc_func = nlm4svc_proc_nm_lock, 686 .pc_decode = nlm4svc_decode_lockargs, 687 .pc_encode = nlm4svc_encode_res, 688 .pc_argsize = sizeof(struct nlm_args), 689 .pc_ressize = sizeof(struct nlm_res), 690 .pc_xdrressize = Ck+St, 691 }, 692 [NLMPROC_FREE_ALL] = { 693 .pc_func = nlm4svc_proc_free_all, 694 .pc_decode = nlm4svc_decode_notify, 695 .pc_encode = nlm4svc_encode_void, 696 .pc_argsize = sizeof(struct nlm_args), 697 .pc_ressize = sizeof(struct nlm_void), 698 .pc_xdrressize = St, 699 }, 700}; 701