1 /*- 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Rick Macklem at The University of Guelph. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 */ 33 34 #include <sys/cdefs.h> 35 __FBSDID("$FreeBSD$"); 36 37 /* 38 * Functions that need to be different for different versions of BSD 39 * kernel should be kept here, along with any global storage specific 40 * to this BSD variant. 41 */ 42 #include <fs/nfs/nfsport.h> 43 #include <sys/sysctl.h> 44 #include <vm/vm.h> 45 #include <vm/vm_object.h> 46 #include <vm/vm_page.h> 47 #include <vm/vm_param.h> 48 #include <vm/vm_map.h> 49 #include <vm/vm_kern.h> 50 #include <vm/vm_extern.h> 51 #include <vm/uma.h> 52 53 extern int nfscl_ticks; 54 extern int nfsrv_nfsuserd; 55 extern struct nfssockreq nfsrv_nfsuserdsock; 56 extern void (*nfsd_call_recall)(struct vnode *, int, struct ucred *, 57 struct thread *); 58 extern int nfsrv_useacl; 59 struct mount nfsv4root_mnt; 60 int newnfs_numnfsd = 0; 61 struct nfsstats newnfsstats; 62 int nfs_numnfscbd = 0; 63 int nfscl_debuglevel = 0; 64 char nfsv4_callbackaddr[INET6_ADDRSTRLEN]; 65 struct callout newnfsd_callout; 66 void (*nfsd_call_servertimer)(void) = NULL; 67 void (*ncl_call_invalcaches)(struct vnode *) = NULL; 68 69 static int nfs_realign_test; 70 static int nfs_realign_count; 71 72 SYSCTL_NODE(_vfs, OID_AUTO, nfs, CTLFLAG_RW, 0, "New NFS filesystem"); 73 SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_test, CTLFLAG_RW, &nfs_realign_test, 74 0, "Number of realign tests done"); 75 SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_count, CTLFLAG_RW, &nfs_realign_count, 76 0, "Number of mbuf realignments done"); 77 SYSCTL_STRING(_vfs_nfs, OID_AUTO, callback_addr, CTLFLAG_RW, 78 nfsv4_callbackaddr, sizeof(nfsv4_callbackaddr), 79 "NFSv4 callback addr for server to use"); 80 SYSCTL_INT(_vfs_nfs, OID_AUTO, debuglevel, CTLFLAG_RW, &nfscl_debuglevel, 81 0, "Debug level for new nfs client"); 82 83 /* 84 * Defines for malloc 85 * (Here for FreeBSD, since they allocate storage.) 86 */ 87 MALLOC_DEFINE(M_NEWNFSRVCACHE, "NFSD srvcache", "NFSD Server Request Cache"); 88 MALLOC_DEFINE(M_NEWNFSDCLIENT, "NFSD V4client", "NFSD V4 Client Id"); 89 MALLOC_DEFINE(M_NEWNFSDSTATE, "NFSD V4state", 90 "NFSD V4 State (Openowner, Open, Lockowner, Delegation"); 91 MALLOC_DEFINE(M_NEWNFSDLOCK, "NFSD V4lock", "NFSD V4 byte range lock"); 92 MALLOC_DEFINE(M_NEWNFSDLOCKFILE, "NFSD lckfile", "NFSD Open/Lock file"); 93 MALLOC_DEFINE(M_NEWNFSSTRING, "NFSD string", "NFSD V4 long string"); 94 MALLOC_DEFINE(M_NEWNFSUSERGROUP, "NFSD usrgroup", "NFSD V4 User/group map"); 95 MALLOC_DEFINE(M_NEWNFSDREQ, "NFS req", "NFS request header"); 96 MALLOC_DEFINE(M_NEWNFSFH, "NFS fh", "NFS file handle"); 97 MALLOC_DEFINE(M_NEWNFSCLOWNER, "NFSCL owner", "NFSCL Open Owner"); 98 MALLOC_DEFINE(M_NEWNFSCLOPEN, "NFSCL open", "NFSCL Open"); 99 MALLOC_DEFINE(M_NEWNFSCLDELEG, "NFSCL deleg", "NFSCL Delegation"); 100 MALLOC_DEFINE(M_NEWNFSCLCLIENT, "NFSCL client", "NFSCL Client"); 101 MALLOC_DEFINE(M_NEWNFSCLLOCKOWNER, "NFSCL lckown", "NFSCL Lock Owner"); 102 MALLOC_DEFINE(M_NEWNFSCLLOCK, "NFSCL lck", "NFSCL Lock"); 103 MALLOC_DEFINE(M_NEWNFSV4NODE, "NEWNFSnode", "New nfs vnode"); 104 MALLOC_DEFINE(M_NEWNFSDIRECTIO, "NEWdirectio", "New nfs Direct IO buffer"); 105 MALLOC_DEFINE(M_NEWNFSDIROFF, "NFSCL diroffdiroff", 106 "New NFS directory offset data"); 107 MALLOC_DEFINE(M_NEWNFSDROLLBACK, "NFSD rollback", 108 "New NFS local lock rollback"); 109 MALLOC_DEFINE(M_NEWNFSLAYOUT, "NFSCL layout", "NFSv4.1 Layout"); 110 MALLOC_DEFINE(M_NEWNFSFLAYOUT, "NFSCL flayout", "NFSv4.1 File Layout"); 111 MALLOC_DEFINE(M_NEWNFSDEVINFO, "NFSCL devinfo", "NFSv4.1 Device Info"); 112 MALLOC_DEFINE(M_NEWNFSSOCKREQ, "NFSCL sockreq", "NFS Sock Req"); 113 MALLOC_DEFINE(M_NEWNFSCLDS, "NFSCL session", "NFSv4.1 Session"); 114 MALLOC_DEFINE(M_NEWNFSLAYRECALL, "NFSCL layrecall", "NFSv4.1 Layout Recall"); 115 116 /* 117 * Definition of mutex locks. 118 * newnfsd_mtx is used in nfsrvd_nfsd() to protect the nfs socket list 119 * and assorted other nfsd structures. 120 */ 121 struct mtx newnfsd_mtx; 122 struct mtx nfs_sockl_mutex; 123 struct mtx nfs_state_mutex; 124 struct mtx nfs_nameid_mutex; 125 struct mtx nfs_req_mutex; 126 struct mtx nfs_slock_mutex; 127 128 /* local functions */ 129 static int nfssvc_call(struct thread *, struct nfssvc_args *, struct ucred *); 130 131 #ifdef __NO_STRICT_ALIGNMENT 132 /* 133 * These architectures don't need re-alignment, so just return. 134 */ 135 void 136 newnfs_realign(struct mbuf **pm) 137 { 138 139 return; 140 } 141 #else /* !__NO_STRICT_ALIGNMENT */ 142 /* 143 * newnfs_realign: 144 * 145 * Check for badly aligned mbuf data and realign by copying the unaligned 146 * portion of the data into a new mbuf chain and freeing the portions 147 * of the old chain that were replaced. 148 * 149 * We cannot simply realign the data within the existing mbuf chain 150 * because the underlying buffers may contain other rpc commands and 151 * we cannot afford to overwrite them. 152 * 153 * We would prefer to avoid this situation entirely. The situation does 154 * not occur with NFS/UDP and is supposed to only occassionally occur 155 * with TCP. Use vfs.nfs.realign_count and realign_test to check this. 156 * 157 */ 158 void 159 newnfs_realign(struct mbuf **pm) 160 { 161 struct mbuf *m, *n; 162 int off, space; 163 164 ++nfs_realign_test; 165 while ((m = *pm) != NULL) { 166 if ((m->m_len & 0x3) || (mtod(m, intptr_t) & 0x3)) { 167 /* 168 * NB: we can't depend on m_pkthdr.len to help us 169 * decide what to do here. May not be worth doing 170 * the m_length calculation as m_copyback will 171 * expand the mbuf chain below as needed. 172 */ 173 space = m_length(m, NULL); 174 if (space >= MINCLSIZE) { 175 /* NB: m_copyback handles space > MCLBYTES */ 176 n = m_getcl(M_WAITOK, MT_DATA, 0); 177 } else 178 n = m_get(M_WAITOK, MT_DATA); 179 if (n == NULL) 180 return; 181 /* 182 * Align the remainder of the mbuf chain. 183 */ 184 n->m_len = 0; 185 off = 0; 186 while (m != NULL) { 187 m_copyback(n, off, m->m_len, mtod(m, caddr_t)); 188 off += m->m_len; 189 m = m->m_next; 190 } 191 m_freem(*pm); 192 *pm = n; 193 ++nfs_realign_count; 194 break; 195 } 196 pm = &m->m_next; 197 } 198 } 199 #endif /* __NO_STRICT_ALIGNMENT */ 200 201 #ifdef notdef 202 static void 203 nfsrv_object_create(struct vnode *vp, struct thread *td) 204 { 205 206 if (vp == NULL || vp->v_type != VREG) 207 return; 208 (void) vfs_object_create(vp, td, td->td_ucred); 209 } 210 #endif 211 212 /* 213 * Look up a file name. Basically just initialize stuff and call namei(). 214 */ 215 int 216 nfsrv_lookupfilename(struct nameidata *ndp, char *fname, NFSPROC_T *p) 217 { 218 int error; 219 220 NDINIT(ndp, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, fname, 221 p); 222 error = namei(ndp); 223 if (!error) { 224 NDFREE(ndp, NDF_ONLY_PNBUF); 225 } 226 return (error); 227 } 228 229 /* 230 * Copy NFS uid, gids to the cred structure. 231 */ 232 void 233 newnfs_copycred(struct nfscred *nfscr, struct ucred *cr) 234 { 235 236 KASSERT(nfscr->nfsc_ngroups >= 0, 237 ("newnfs_copycred: negative nfsc_ngroups")); 238 cr->cr_uid = nfscr->nfsc_uid; 239 crsetgroups(cr, nfscr->nfsc_ngroups, nfscr->nfsc_groups); 240 } 241 242 /* 243 * Map args from nfsmsleep() to msleep(). 244 */ 245 int 246 nfsmsleep(void *chan, void *mutex, int prio, const char *wmesg, 247 struct timespec *ts) 248 { 249 u_int64_t nsecval; 250 int error, timeo; 251 252 if (ts) { 253 timeo = hz * ts->tv_sec; 254 nsecval = (u_int64_t)ts->tv_nsec; 255 nsecval = ((nsecval * ((u_int64_t)hz)) + 500000000) / 256 1000000000; 257 timeo += (int)nsecval; 258 } else { 259 timeo = 0; 260 } 261 error = msleep(chan, (struct mtx *)mutex, prio, wmesg, timeo); 262 return (error); 263 } 264 265 /* 266 * Get the file system info for the server. For now, just assume FFS. 267 */ 268 void 269 nfsvno_getfs(struct nfsfsinfo *sip, int isdgram) 270 { 271 int pref; 272 273 /* 274 * XXX 275 * There should be file system VFS OP(s) to get this information. 276 * For now, assume ufs. 277 */ 278 if (isdgram) 279 pref = NFS_MAXDGRAMDATA; 280 else 281 pref = NFS_MAXDATA; 282 sip->fs_rtmax = NFS_MAXDATA; 283 sip->fs_rtpref = pref; 284 sip->fs_rtmult = NFS_FABLKSIZE; 285 sip->fs_wtmax = NFS_MAXDATA; 286 sip->fs_wtpref = pref; 287 sip->fs_wtmult = NFS_FABLKSIZE; 288 sip->fs_dtpref = pref; 289 sip->fs_maxfilesize = 0xffffffffffffffffull; 290 sip->fs_timedelta.tv_sec = 0; 291 sip->fs_timedelta.tv_nsec = 1; 292 sip->fs_properties = (NFSV3FSINFO_LINK | 293 NFSV3FSINFO_SYMLINK | NFSV3FSINFO_HOMOGENEOUS | 294 NFSV3FSINFO_CANSETTIME); 295 } 296 297 /* 298 * Do the pathconf vnode op. 299 */ 300 int 301 nfsvno_pathconf(struct vnode *vp, int flag, register_t *retf, 302 struct ucred *cred, struct thread *p) 303 { 304 int error; 305 306 error = VOP_PATHCONF(vp, flag, retf); 307 if (error == EOPNOTSUPP || error == EINVAL) { 308 /* 309 * Some file systems return EINVAL for name arguments not 310 * supported and some return EOPNOTSUPP for this case. 311 * So the NFSv3 Pathconf RPC doesn't fail for these cases, 312 * just fake them. 313 */ 314 switch (flag) { 315 case _PC_LINK_MAX: 316 *retf = LINK_MAX; 317 break; 318 case _PC_NAME_MAX: 319 *retf = NAME_MAX; 320 break; 321 case _PC_CHOWN_RESTRICTED: 322 *retf = 1; 323 break; 324 case _PC_NO_TRUNC: 325 *retf = 1; 326 break; 327 default: 328 /* 329 * Only happens if a _PC_xxx is added to the server, 330 * but this isn't updated. 331 */ 332 *retf = 0; 333 printf("nfsrvd pathconf flag=%d not supp\n", flag); 334 }; 335 error = 0; 336 } 337 NFSEXITCODE(error); 338 return (error); 339 } 340 341 /* Fake nfsrv_atroot. Just return 0 */ 342 int 343 nfsrv_atroot(struct vnode *vp, long *retp) 344 { 345 346 return (0); 347 } 348 349 /* 350 * Set the credentials to refer to root. 351 * If only the various BSDen could agree on whether cr_gid is a separate 352 * field or cr_groups[0]... 353 */ 354 void 355 newnfs_setroot(struct ucred *cred) 356 { 357 358 cred->cr_uid = 0; 359 cred->cr_groups[0] = 0; 360 cred->cr_ngroups = 1; 361 } 362 363 /* 364 * Get the client credential. Used for Renew and recovery. 365 */ 366 struct ucred * 367 newnfs_getcred(void) 368 { 369 struct ucred *cred; 370 struct thread *td = curthread; 371 372 cred = crdup(td->td_ucred); 373 newnfs_setroot(cred); 374 return (cred); 375 } 376 377 /* 378 * Nfs timer routine 379 * Call the nfsd's timer function once/sec. 380 */ 381 void 382 newnfs_timer(void *arg) 383 { 384 static time_t lasttime = 0; 385 /* 386 * Call the server timer, if set up. 387 * The argument indicates if it is the next second and therefore 388 * leases should be checked. 389 */ 390 if (lasttime != NFSD_MONOSEC) { 391 lasttime = NFSD_MONOSEC; 392 if (nfsd_call_servertimer != NULL) 393 (*nfsd_call_servertimer)(); 394 } 395 callout_reset(&newnfsd_callout, nfscl_ticks, newnfs_timer, NULL); 396 } 397 398 399 /* 400 * Sleep for a short period of time unless errval == NFSERR_GRACE, where 401 * the sleep should be for 5 seconds. 402 * Since lbolt doesn't exist in FreeBSD-CURRENT, just use a timeout on 403 * an event that never gets a wakeup. Only return EINTR or 0. 404 */ 405 int 406 nfs_catnap(int prio, int errval, const char *wmesg) 407 { 408 static int non_event; 409 int ret; 410 411 if (errval == NFSERR_GRACE) 412 ret = tsleep(&non_event, prio, wmesg, 5 * hz); 413 else 414 ret = tsleep(&non_event, prio, wmesg, 1); 415 if (ret != EINTR) 416 ret = 0; 417 return (ret); 418 } 419 420 /* 421 * Get referral. For now, just fail. 422 */ 423 struct nfsreferral * 424 nfsv4root_getreferral(struct vnode *vp, struct vnode *dvp, u_int32_t fileno) 425 { 426 427 return (NULL); 428 } 429 430 static int 431 nfssvc_nfscommon(struct thread *td, struct nfssvc_args *uap) 432 { 433 int error; 434 435 error = nfssvc_call(td, uap, td->td_ucred); 436 NFSEXITCODE(error); 437 return (error); 438 } 439 440 static int 441 nfssvc_call(struct thread *p, struct nfssvc_args *uap, struct ucred *cred) 442 { 443 int error = EINVAL; 444 struct nfsd_idargs nid; 445 446 if (uap->flag & NFSSVC_IDNAME) { 447 error = copyin(uap->argp, (caddr_t)&nid, sizeof (nid)); 448 if (error) 449 goto out; 450 error = nfssvc_idname(&nid); 451 goto out; 452 } else if (uap->flag & NFSSVC_GETSTATS) { 453 error = copyout(&newnfsstats, 454 CAST_USER_ADDR_T(uap->argp), sizeof (newnfsstats)); 455 if (error == 0) { 456 if ((uap->flag & NFSSVC_ZEROCLTSTATS) != 0) { 457 newnfsstats.attrcache_hits = 0; 458 newnfsstats.attrcache_misses = 0; 459 newnfsstats.lookupcache_hits = 0; 460 newnfsstats.lookupcache_misses = 0; 461 newnfsstats.direofcache_hits = 0; 462 newnfsstats.direofcache_misses = 0; 463 newnfsstats.accesscache_hits = 0; 464 newnfsstats.accesscache_misses = 0; 465 newnfsstats.biocache_reads = 0; 466 newnfsstats.read_bios = 0; 467 newnfsstats.read_physios = 0; 468 newnfsstats.biocache_writes = 0; 469 newnfsstats.write_bios = 0; 470 newnfsstats.write_physios = 0; 471 newnfsstats.biocache_readlinks = 0; 472 newnfsstats.readlink_bios = 0; 473 newnfsstats.biocache_readdirs = 0; 474 newnfsstats.readdir_bios = 0; 475 newnfsstats.rpcretries = 0; 476 newnfsstats.rpcrequests = 0; 477 newnfsstats.rpctimeouts = 0; 478 newnfsstats.rpcunexpected = 0; 479 newnfsstats.rpcinvalid = 0; 480 bzero(newnfsstats.rpccnt, 481 sizeof(newnfsstats.rpccnt)); 482 } 483 if ((uap->flag & NFSSVC_ZEROSRVSTATS) != 0) { 484 newnfsstats.srvrpc_errs = 0; 485 newnfsstats.srv_errs = 0; 486 newnfsstats.srvcache_inproghits = 0; 487 newnfsstats.srvcache_idemdonehits = 0; 488 newnfsstats.srvcache_nonidemdonehits = 0; 489 newnfsstats.srvcache_misses = 0; 490 newnfsstats.srvcache_tcppeak = 0; 491 newnfsstats.srvclients = 0; 492 newnfsstats.srvopenowners = 0; 493 newnfsstats.srvopens = 0; 494 newnfsstats.srvlockowners = 0; 495 newnfsstats.srvlocks = 0; 496 newnfsstats.srvdelegates = 0; 497 newnfsstats.clopenowners = 0; 498 newnfsstats.clopens = 0; 499 newnfsstats.cllockowners = 0; 500 newnfsstats.cllocks = 0; 501 newnfsstats.cldelegates = 0; 502 newnfsstats.cllocalopenowners = 0; 503 newnfsstats.cllocalopens = 0; 504 newnfsstats.cllocallockowners = 0; 505 newnfsstats.cllocallocks = 0; 506 bzero(newnfsstats.srvrpccnt, 507 sizeof(newnfsstats.srvrpccnt)); 508 bzero(newnfsstats.cbrpccnt, 509 sizeof(newnfsstats.cbrpccnt)); 510 } 511 } 512 goto out; 513 } else if (uap->flag & NFSSVC_NFSUSERDPORT) { 514 u_short sockport; 515 516 error = copyin(uap->argp, (caddr_t)&sockport, 517 sizeof (u_short)); 518 if (!error) 519 error = nfsrv_nfsuserdport(sockport, p); 520 } else if (uap->flag & NFSSVC_NFSUSERDDELPORT) { 521 nfsrv_nfsuserddelport(); 522 error = 0; 523 } 524 525 out: 526 NFSEXITCODE(error); 527 return (error); 528 } 529 530 /* 531 * called by all three modevent routines, so that it gets things 532 * initialized soon enough. 533 */ 534 void 535 newnfs_portinit(void) 536 { 537 static int inited = 0; 538 539 if (inited) 540 return; 541 inited = 1; 542 /* Initialize SMP locks used by both client and server. */ 543 mtx_init(&newnfsd_mtx, "newnfsd_mtx", NULL, MTX_DEF); 544 mtx_init(&nfs_state_mutex, "nfs_state_mutex", NULL, MTX_DEF); 545 } 546 547 /* 548 * Determine if the file system supports NFSv4 ACLs. 549 * Return 1 if it does, 0 otherwise. 550 */ 551 int 552 nfs_supportsnfsv4acls(struct vnode *vp) 553 { 554 int error; 555 register_t retval; 556 557 ASSERT_VOP_LOCKED(vp, "nfs supports nfsv4acls"); 558 559 if (nfsrv_useacl == 0) 560 return (0); 561 error = VOP_PATHCONF(vp, _PC_ACL_NFS4, &retval); 562 if (error == 0 && retval != 0) 563 return (1); 564 return (0); 565 } 566 567 extern int (*nfsd_call_nfscommon)(struct thread *, struct nfssvc_args *); 568 569 /* 570 * Called once to initialize data structures... 571 */ 572 static int 573 nfscommon_modevent(module_t mod, int type, void *data) 574 { 575 int error = 0; 576 static int loaded = 0; 577 578 switch (type) { 579 case MOD_LOAD: 580 if (loaded) 581 goto out; 582 newnfs_portinit(); 583 mtx_init(&nfs_nameid_mutex, "nfs_nameid_mutex", NULL, MTX_DEF); 584 mtx_init(&nfs_sockl_mutex, "nfs_sockl_mutex", NULL, MTX_DEF); 585 mtx_init(&nfs_slock_mutex, "nfs_slock_mutex", NULL, MTX_DEF); 586 mtx_init(&nfs_req_mutex, "nfs_req_mutex", NULL, MTX_DEF); 587 mtx_init(&nfsrv_nfsuserdsock.nr_mtx, "nfsuserd", NULL, 588 MTX_DEF); 589 callout_init(&newnfsd_callout, CALLOUT_MPSAFE); 590 newnfs_init(); 591 nfsd_call_nfscommon = nfssvc_nfscommon; 592 loaded = 1; 593 break; 594 595 case MOD_UNLOAD: 596 if (newnfs_numnfsd != 0 || nfsrv_nfsuserd != 0 || 597 nfs_numnfscbd != 0) { 598 error = EBUSY; 599 break; 600 } 601 602 nfsd_call_nfscommon = NULL; 603 callout_drain(&newnfsd_callout); 604 /* and get rid of the mutexes */ 605 mtx_destroy(&nfs_nameid_mutex); 606 mtx_destroy(&newnfsd_mtx); 607 mtx_destroy(&nfs_state_mutex); 608 mtx_destroy(&nfs_sockl_mutex); 609 mtx_destroy(&nfs_slock_mutex); 610 mtx_destroy(&nfs_req_mutex); 611 mtx_destroy(&nfsrv_nfsuserdsock.nr_mtx); 612 loaded = 0; 613 break; 614 default: 615 error = EOPNOTSUPP; 616 break; 617 } 618 619 out: 620 NFSEXITCODE(error); 621 return error; 622 } 623 static moduledata_t nfscommon_mod = { 624 "nfscommon", 625 nfscommon_modevent, 626 NULL, 627 }; 628 DECLARE_MODULE(nfscommon, nfscommon_mod, SI_SUB_VFS, SI_ORDER_ANY); 629 630 /* So that loader and kldload(2) can find us, wherever we are.. */ 631 MODULE_VERSION(nfscommon, 1); 632 MODULE_DEPEND(nfscommon, nfssvc, 1, 1, 1); 633 MODULE_DEPEND(nfscommon, krpc, 1, 1, 1); 634 635