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 * 3. 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 nfsstatsv1 nfsstatsv1; 62 int nfs_numnfscbd = 0; 63 int nfscl_debuglevel = 0; 64 char nfsv4_callbackaddr[INET6_ADDRSTRLEN]; 65 struct callout newnfsd_callout; 66 int nfsrv_lughashsize = 100; 67 void (*nfsd_call_servertimer)(void) = NULL; 68 void (*ncl_call_invalcaches)(struct vnode *) = NULL; 69 70 static int nfs_realign_test; 71 static int nfs_realign_count; 72 static struct ext_nfsstats oldnfsstats; 73 74 SYSCTL_NODE(_vfs, OID_AUTO, nfs, CTLFLAG_RW, 0, "NFS filesystem"); 75 SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_test, CTLFLAG_RW, &nfs_realign_test, 76 0, "Number of realign tests done"); 77 SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_count, CTLFLAG_RW, &nfs_realign_count, 78 0, "Number of mbuf realignments done"); 79 SYSCTL_STRING(_vfs_nfs, OID_AUTO, callback_addr, CTLFLAG_RW, 80 nfsv4_callbackaddr, sizeof(nfsv4_callbackaddr), 81 "NFSv4 callback addr for server to use"); 82 SYSCTL_INT(_vfs_nfs, OID_AUTO, debuglevel, CTLFLAG_RW, &nfscl_debuglevel, 83 0, "Debug level for NFS client"); 84 SYSCTL_INT(_vfs_nfs, OID_AUTO, userhashsize, CTLFLAG_RDTUN, &nfsrv_lughashsize, 85 0, "Size of hash tables for uid/name mapping"); 86 87 /* 88 * Defines for malloc 89 * (Here for FreeBSD, since they allocate storage.) 90 */ 91 MALLOC_DEFINE(M_NEWNFSRVCACHE, "NFSD srvcache", "NFSD Server Request Cache"); 92 MALLOC_DEFINE(M_NEWNFSDCLIENT, "NFSD V4client", "NFSD V4 Client Id"); 93 MALLOC_DEFINE(M_NEWNFSDSTATE, "NFSD V4state", 94 "NFSD V4 State (Openowner, Open, Lockowner, Delegation"); 95 MALLOC_DEFINE(M_NEWNFSDLOCK, "NFSD V4lock", "NFSD V4 byte range lock"); 96 MALLOC_DEFINE(M_NEWNFSDLOCKFILE, "NFSD lckfile", "NFSD Open/Lock file"); 97 MALLOC_DEFINE(M_NEWNFSSTRING, "NFSD string", "NFSD V4 long string"); 98 MALLOC_DEFINE(M_NEWNFSUSERGROUP, "NFSD usrgroup", "NFSD V4 User/group map"); 99 MALLOC_DEFINE(M_NEWNFSDREQ, "NFS req", "NFS request header"); 100 MALLOC_DEFINE(M_NEWNFSFH, "NFS fh", "NFS file handle"); 101 MALLOC_DEFINE(M_NEWNFSCLOWNER, "NFSCL owner", "NFSCL Open Owner"); 102 MALLOC_DEFINE(M_NEWNFSCLOPEN, "NFSCL open", "NFSCL Open"); 103 MALLOC_DEFINE(M_NEWNFSCLDELEG, "NFSCL deleg", "NFSCL Delegation"); 104 MALLOC_DEFINE(M_NEWNFSCLCLIENT, "NFSCL client", "NFSCL Client"); 105 MALLOC_DEFINE(M_NEWNFSCLLOCKOWNER, "NFSCL lckown", "NFSCL Lock Owner"); 106 MALLOC_DEFINE(M_NEWNFSCLLOCK, "NFSCL lck", "NFSCL Lock"); 107 MALLOC_DEFINE(M_NEWNFSV4NODE, "NEWNFSnode", "NFS vnode"); 108 MALLOC_DEFINE(M_NEWNFSDIRECTIO, "NEWdirectio", "NFS Direct IO buffer"); 109 MALLOC_DEFINE(M_NEWNFSDIROFF, "NFSCL diroffdiroff", 110 "NFS directory offset data"); 111 MALLOC_DEFINE(M_NEWNFSDROLLBACK, "NFSD rollback", 112 "NFS local lock rollback"); 113 MALLOC_DEFINE(M_NEWNFSLAYOUT, "NFSCL layout", "NFSv4.1 Layout"); 114 MALLOC_DEFINE(M_NEWNFSFLAYOUT, "NFSCL flayout", "NFSv4.1 File Layout"); 115 MALLOC_DEFINE(M_NEWNFSDEVINFO, "NFSCL devinfo", "NFSv4.1 Device Info"); 116 MALLOC_DEFINE(M_NEWNFSSOCKREQ, "NFSCL sockreq", "NFS Sock Req"); 117 MALLOC_DEFINE(M_NEWNFSCLDS, "NFSCL session", "NFSv4.1 Session"); 118 MALLOC_DEFINE(M_NEWNFSLAYRECALL, "NFSCL layrecall", "NFSv4.1 Layout Recall"); 119 MALLOC_DEFINE(M_NEWNFSDSESSION, "NFSD session", "NFSD Session for a client"); 120 121 /* 122 * Definition of mutex locks. 123 * newnfsd_mtx is used in nfsrvd_nfsd() to protect the nfs socket list 124 * and assorted other nfsd structures. 125 */ 126 struct mtx newnfsd_mtx; 127 struct mtx nfs_sockl_mutex; 128 struct mtx nfs_state_mutex; 129 struct mtx nfs_nameid_mutex; 130 struct mtx nfs_req_mutex; 131 struct mtx nfs_slock_mutex; 132 struct mtx nfs_clstate_mutex; 133 134 /* local functions */ 135 static int nfssvc_call(struct thread *, struct nfssvc_args *, struct ucred *); 136 137 #ifdef __NO_STRICT_ALIGNMENT 138 /* 139 * These architectures don't need re-alignment, so just return. 140 */ 141 int 142 newnfs_realign(struct mbuf **pm, int how) 143 { 144 145 return (0); 146 } 147 #else /* !__NO_STRICT_ALIGNMENT */ 148 /* 149 * newnfs_realign: 150 * 151 * Check for badly aligned mbuf data and realign by copying the unaligned 152 * portion of the data into a new mbuf chain and freeing the portions 153 * of the old chain that were replaced. 154 * 155 * We cannot simply realign the data within the existing mbuf chain 156 * because the underlying buffers may contain other rpc commands and 157 * we cannot afford to overwrite them. 158 * 159 * We would prefer to avoid this situation entirely. The situation does 160 * not occur with NFS/UDP and is supposed to only occasionally occur 161 * with TCP. Use vfs.nfs.realign_count and realign_test to check this. 162 * 163 */ 164 int 165 newnfs_realign(struct mbuf **pm, int how) 166 { 167 struct mbuf *m, *n; 168 int off, space; 169 170 ++nfs_realign_test; 171 while ((m = *pm) != NULL) { 172 if ((m->m_len & 0x3) || (mtod(m, intptr_t) & 0x3)) { 173 /* 174 * NB: we can't depend on m_pkthdr.len to help us 175 * decide what to do here. May not be worth doing 176 * the m_length calculation as m_copyback will 177 * expand the mbuf chain below as needed. 178 */ 179 space = m_length(m, NULL); 180 if (space >= MINCLSIZE) { 181 /* NB: m_copyback handles space > MCLBYTES */ 182 n = m_getcl(how, MT_DATA, 0); 183 } else 184 n = m_get(how, MT_DATA); 185 if (n == NULL) 186 return (ENOMEM); 187 /* 188 * Align the remainder of the mbuf chain. 189 */ 190 n->m_len = 0; 191 off = 0; 192 while (m != NULL) { 193 m_copyback(n, off, m->m_len, mtod(m, caddr_t)); 194 off += m->m_len; 195 m = m->m_next; 196 } 197 m_freem(*pm); 198 *pm = n; 199 ++nfs_realign_count; 200 break; 201 } 202 pm = &m->m_next; 203 } 204 205 return (0); 206 } 207 #endif /* __NO_STRICT_ALIGNMENT */ 208 209 #ifdef notdef 210 static void 211 nfsrv_object_create(struct vnode *vp, struct thread *td) 212 { 213 214 if (vp == NULL || vp->v_type != VREG) 215 return; 216 (void) vfs_object_create(vp, td, td->td_ucred); 217 } 218 #endif 219 220 /* 221 * Look up a file name. Basically just initialize stuff and call namei(). 222 */ 223 int 224 nfsrv_lookupfilename(struct nameidata *ndp, char *fname, NFSPROC_T *p) 225 { 226 int error; 227 228 NDINIT(ndp, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, fname, 229 p); 230 error = namei(ndp); 231 if (!error) { 232 NDFREE(ndp, NDF_ONLY_PNBUF); 233 } 234 return (error); 235 } 236 237 /* 238 * Copy NFS uid, gids to the cred structure. 239 */ 240 void 241 newnfs_copycred(struct nfscred *nfscr, struct ucred *cr) 242 { 243 244 KASSERT(nfscr->nfsc_ngroups >= 0, 245 ("newnfs_copycred: negative nfsc_ngroups")); 246 cr->cr_uid = nfscr->nfsc_uid; 247 crsetgroups(cr, nfscr->nfsc_ngroups, nfscr->nfsc_groups); 248 } 249 250 /* 251 * Map args from nfsmsleep() to msleep(). 252 */ 253 int 254 nfsmsleep(void *chan, void *mutex, int prio, const char *wmesg, 255 struct timespec *ts) 256 { 257 u_int64_t nsecval; 258 int error, timeo; 259 260 if (ts) { 261 timeo = hz * ts->tv_sec; 262 nsecval = (u_int64_t)ts->tv_nsec; 263 nsecval = ((nsecval * ((u_int64_t)hz)) + 500000000) / 264 1000000000; 265 timeo += (int)nsecval; 266 } else { 267 timeo = 0; 268 } 269 error = msleep(chan, (struct mtx *)mutex, prio, wmesg, timeo); 270 return (error); 271 } 272 273 /* 274 * Get the file system info for the server. For now, just assume FFS. 275 */ 276 void 277 nfsvno_getfs(struct nfsfsinfo *sip, int isdgram) 278 { 279 int pref; 280 281 /* 282 * XXX 283 * There should be file system VFS OP(s) to get this information. 284 * For now, assume ufs. 285 */ 286 if (isdgram) 287 pref = NFS_MAXDGRAMDATA; 288 else 289 pref = NFS_SRVMAXIO; 290 sip->fs_rtmax = NFS_SRVMAXIO; 291 sip->fs_rtpref = pref; 292 sip->fs_rtmult = NFS_FABLKSIZE; 293 sip->fs_wtmax = NFS_SRVMAXIO; 294 sip->fs_wtpref = pref; 295 sip->fs_wtmult = NFS_FABLKSIZE; 296 sip->fs_dtpref = pref; 297 sip->fs_maxfilesize = 0xffffffffffffffffull; 298 sip->fs_timedelta.tv_sec = 0; 299 sip->fs_timedelta.tv_nsec = 1; 300 sip->fs_properties = (NFSV3FSINFO_LINK | 301 NFSV3FSINFO_SYMLINK | NFSV3FSINFO_HOMOGENEOUS | 302 NFSV3FSINFO_CANSETTIME); 303 } 304 305 /* 306 * Do the pathconf vnode op. 307 */ 308 int 309 nfsvno_pathconf(struct vnode *vp, int flag, register_t *retf, 310 struct ucred *cred, struct thread *p) 311 { 312 int error; 313 314 error = VOP_PATHCONF(vp, flag, retf); 315 if (error == EOPNOTSUPP || error == EINVAL) { 316 /* 317 * Some file systems return EINVAL for name arguments not 318 * supported and some return EOPNOTSUPP for this case. 319 * So the NFSv3 Pathconf RPC doesn't fail for these cases, 320 * just fake them. 321 */ 322 switch (flag) { 323 case _PC_LINK_MAX: 324 *retf = LINK_MAX; 325 break; 326 case _PC_NAME_MAX: 327 *retf = NAME_MAX; 328 break; 329 case _PC_CHOWN_RESTRICTED: 330 *retf = 1; 331 break; 332 case _PC_NO_TRUNC: 333 *retf = 1; 334 break; 335 default: 336 /* 337 * Only happens if a _PC_xxx is added to the server, 338 * but this isn't updated. 339 */ 340 *retf = 0; 341 printf("nfsrvd pathconf flag=%d not supp\n", flag); 342 } 343 error = 0; 344 } 345 NFSEXITCODE(error); 346 return (error); 347 } 348 349 /* Fake nfsrv_atroot. Just return 0 */ 350 int 351 nfsrv_atroot(struct vnode *vp, long *retp) 352 { 353 354 return (0); 355 } 356 357 /* 358 * Set the credentials to refer to root. 359 * If only the various BSDen could agree on whether cr_gid is a separate 360 * field or cr_groups[0]... 361 */ 362 void 363 newnfs_setroot(struct ucred *cred) 364 { 365 366 cred->cr_uid = 0; 367 cred->cr_groups[0] = 0; 368 cred->cr_ngroups = 1; 369 } 370 371 /* 372 * Get the client credential. Used for Renew and recovery. 373 */ 374 struct ucred * 375 newnfs_getcred(void) 376 { 377 struct ucred *cred; 378 struct thread *td = curthread; 379 380 cred = crdup(td->td_ucred); 381 newnfs_setroot(cred); 382 return (cred); 383 } 384 385 /* 386 * Nfs timer routine 387 * Call the nfsd's timer function once/sec. 388 */ 389 void 390 newnfs_timer(void *arg) 391 { 392 static time_t lasttime = 0; 393 /* 394 * Call the server timer, if set up. 395 * The argument indicates if it is the next second and therefore 396 * leases should be checked. 397 */ 398 if (lasttime != NFSD_MONOSEC) { 399 lasttime = NFSD_MONOSEC; 400 if (nfsd_call_servertimer != NULL) 401 (*nfsd_call_servertimer)(); 402 } 403 callout_reset(&newnfsd_callout, nfscl_ticks, newnfs_timer, NULL); 404 } 405 406 407 /* 408 * Sleep for a short period of time unless errval == NFSERR_GRACE, where 409 * the sleep should be for 5 seconds. 410 * Since lbolt doesn't exist in FreeBSD-CURRENT, just use a timeout on 411 * an event that never gets a wakeup. Only return EINTR or 0. 412 */ 413 int 414 nfs_catnap(int prio, int errval, const char *wmesg) 415 { 416 static int non_event; 417 int ret; 418 419 if (errval == NFSERR_GRACE) 420 ret = tsleep(&non_event, prio, wmesg, 5 * hz); 421 else 422 ret = tsleep(&non_event, prio, wmesg, 1); 423 if (ret != EINTR) 424 ret = 0; 425 return (ret); 426 } 427 428 /* 429 * Get referral. For now, just fail. 430 */ 431 struct nfsreferral * 432 nfsv4root_getreferral(struct vnode *vp, struct vnode *dvp, u_int32_t fileno) 433 { 434 435 return (NULL); 436 } 437 438 static int 439 nfssvc_nfscommon(struct thread *td, struct nfssvc_args *uap) 440 { 441 int error; 442 443 error = nfssvc_call(td, uap, td->td_ucred); 444 NFSEXITCODE(error); 445 return (error); 446 } 447 448 static int 449 nfssvc_call(struct thread *p, struct nfssvc_args *uap, struct ucred *cred) 450 { 451 int error = EINVAL, i, j; 452 struct nfsd_idargs nid; 453 struct nfsd_oidargs onid; 454 struct { 455 int vers; /* Just the first field of nfsstats. */ 456 } nfsstatver; 457 458 if (uap->flag & NFSSVC_IDNAME) { 459 if ((uap->flag & NFSSVC_NEWSTRUCT) != 0) 460 error = copyin(uap->argp, &nid, sizeof(nid)); 461 else { 462 error = copyin(uap->argp, &onid, sizeof(onid)); 463 if (error == 0) { 464 nid.nid_flag = onid.nid_flag; 465 nid.nid_uid = onid.nid_uid; 466 nid.nid_gid = onid.nid_gid; 467 nid.nid_usermax = onid.nid_usermax; 468 nid.nid_usertimeout = onid.nid_usertimeout; 469 nid.nid_name = onid.nid_name; 470 nid.nid_namelen = onid.nid_namelen; 471 nid.nid_ngroup = 0; 472 nid.nid_grps = NULL; 473 } 474 } 475 if (error) 476 goto out; 477 error = nfssvc_idname(&nid); 478 goto out; 479 } else if (uap->flag & NFSSVC_GETSTATS) { 480 if ((uap->flag & NFSSVC_NEWSTRUCT) == 0) { 481 /* Copy fields to the old ext_nfsstat structure. */ 482 oldnfsstats.attrcache_hits = 483 nfsstatsv1.attrcache_hits; 484 oldnfsstats.attrcache_misses = 485 nfsstatsv1.attrcache_misses; 486 oldnfsstats.lookupcache_hits = 487 nfsstatsv1.lookupcache_hits; 488 oldnfsstats.lookupcache_misses = 489 nfsstatsv1.lookupcache_misses; 490 oldnfsstats.direofcache_hits = 491 nfsstatsv1.direofcache_hits; 492 oldnfsstats.direofcache_misses = 493 nfsstatsv1.direofcache_misses; 494 oldnfsstats.accesscache_hits = 495 nfsstatsv1.accesscache_hits; 496 oldnfsstats.accesscache_misses = 497 nfsstatsv1.accesscache_misses; 498 oldnfsstats.biocache_reads = 499 nfsstatsv1.biocache_reads; 500 oldnfsstats.read_bios = 501 nfsstatsv1.read_bios; 502 oldnfsstats.read_physios = 503 nfsstatsv1.read_physios; 504 oldnfsstats.biocache_writes = 505 nfsstatsv1.biocache_writes; 506 oldnfsstats.write_bios = 507 nfsstatsv1.write_bios; 508 oldnfsstats.write_physios = 509 nfsstatsv1.write_physios; 510 oldnfsstats.biocache_readlinks = 511 nfsstatsv1.biocache_readlinks; 512 oldnfsstats.readlink_bios = 513 nfsstatsv1.readlink_bios; 514 oldnfsstats.biocache_readdirs = 515 nfsstatsv1.biocache_readdirs; 516 oldnfsstats.readdir_bios = 517 nfsstatsv1.readdir_bios; 518 for (i = 0; i < NFSV4_NPROCS; i++) 519 oldnfsstats.rpccnt[i] = nfsstatsv1.rpccnt[i]; 520 oldnfsstats.rpcretries = nfsstatsv1.rpcretries; 521 for (i = 0; i < NFSV4OP_NOPS; i++) 522 oldnfsstats.srvrpccnt[i] = 523 nfsstatsv1.srvrpccnt[i]; 524 for (i = NFSV42_NOPS, j = NFSV4OP_NOPS; 525 i < NFSV42_NOPS + NFSV4OP_FAKENOPS; i++, j++) 526 oldnfsstats.srvrpccnt[j] = 527 nfsstatsv1.srvrpccnt[i]; 528 oldnfsstats.srvrpc_errs = nfsstatsv1.srvrpc_errs; 529 oldnfsstats.srv_errs = nfsstatsv1.srv_errs; 530 oldnfsstats.rpcrequests = nfsstatsv1.rpcrequests; 531 oldnfsstats.rpctimeouts = nfsstatsv1.rpctimeouts; 532 oldnfsstats.rpcunexpected = nfsstatsv1.rpcunexpected; 533 oldnfsstats.rpcinvalid = nfsstatsv1.rpcinvalid; 534 oldnfsstats.srvcache_inproghits = 535 nfsstatsv1.srvcache_inproghits; 536 oldnfsstats.srvcache_idemdonehits = 537 nfsstatsv1.srvcache_idemdonehits; 538 oldnfsstats.srvcache_nonidemdonehits = 539 nfsstatsv1.srvcache_nonidemdonehits; 540 oldnfsstats.srvcache_misses = 541 nfsstatsv1.srvcache_misses; 542 oldnfsstats.srvcache_tcppeak = 543 nfsstatsv1.srvcache_tcppeak; 544 oldnfsstats.srvcache_size = nfsstatsv1.srvcache_size; 545 oldnfsstats.srvclients = nfsstatsv1.srvclients; 546 oldnfsstats.srvopenowners = nfsstatsv1.srvopenowners; 547 oldnfsstats.srvopens = nfsstatsv1.srvopens; 548 oldnfsstats.srvlockowners = nfsstatsv1.srvlockowners; 549 oldnfsstats.srvlocks = nfsstatsv1.srvlocks; 550 oldnfsstats.srvdelegates = nfsstatsv1.srvdelegates; 551 for (i = 0; i < NFSV4OP_CBNOPS; i++) 552 oldnfsstats.cbrpccnt[i] = 553 nfsstatsv1.cbrpccnt[i]; 554 oldnfsstats.clopenowners = nfsstatsv1.clopenowners; 555 oldnfsstats.clopens = nfsstatsv1.clopens; 556 oldnfsstats.cllockowners = nfsstatsv1.cllockowners; 557 oldnfsstats.cllocks = nfsstatsv1.cllocks; 558 oldnfsstats.cldelegates = nfsstatsv1.cldelegates; 559 oldnfsstats.cllocalopenowners = 560 nfsstatsv1.cllocalopenowners; 561 oldnfsstats.cllocalopens = nfsstatsv1.cllocalopens; 562 oldnfsstats.cllocallockowners = 563 nfsstatsv1.cllocallockowners; 564 oldnfsstats.cllocallocks = nfsstatsv1.cllocallocks; 565 error = copyout(&oldnfsstats, uap->argp, 566 sizeof (oldnfsstats)); 567 } else { 568 error = copyin(uap->argp, &nfsstatver, 569 sizeof(nfsstatver)); 570 if (error == 0 && nfsstatver.vers != NFSSTATS_V1) 571 error = EPERM; 572 if (error == 0) 573 error = copyout(&nfsstatsv1, uap->argp, 574 sizeof (nfsstatsv1)); 575 } 576 if (error == 0) { 577 if ((uap->flag & NFSSVC_ZEROCLTSTATS) != 0) { 578 nfsstatsv1.attrcache_hits = 0; 579 nfsstatsv1.attrcache_misses = 0; 580 nfsstatsv1.lookupcache_hits = 0; 581 nfsstatsv1.lookupcache_misses = 0; 582 nfsstatsv1.direofcache_hits = 0; 583 nfsstatsv1.direofcache_misses = 0; 584 nfsstatsv1.accesscache_hits = 0; 585 nfsstatsv1.accesscache_misses = 0; 586 nfsstatsv1.biocache_reads = 0; 587 nfsstatsv1.read_bios = 0; 588 nfsstatsv1.read_physios = 0; 589 nfsstatsv1.biocache_writes = 0; 590 nfsstatsv1.write_bios = 0; 591 nfsstatsv1.write_physios = 0; 592 nfsstatsv1.biocache_readlinks = 0; 593 nfsstatsv1.readlink_bios = 0; 594 nfsstatsv1.biocache_readdirs = 0; 595 nfsstatsv1.readdir_bios = 0; 596 nfsstatsv1.rpcretries = 0; 597 nfsstatsv1.rpcrequests = 0; 598 nfsstatsv1.rpctimeouts = 0; 599 nfsstatsv1.rpcunexpected = 0; 600 nfsstatsv1.rpcinvalid = 0; 601 bzero(nfsstatsv1.rpccnt, 602 sizeof(nfsstatsv1.rpccnt)); 603 } 604 if ((uap->flag & NFSSVC_ZEROSRVSTATS) != 0) { 605 nfsstatsv1.srvrpc_errs = 0; 606 nfsstatsv1.srv_errs = 0; 607 nfsstatsv1.srvcache_inproghits = 0; 608 nfsstatsv1.srvcache_idemdonehits = 0; 609 nfsstatsv1.srvcache_nonidemdonehits = 0; 610 nfsstatsv1.srvcache_misses = 0; 611 nfsstatsv1.srvcache_tcppeak = 0; 612 bzero(nfsstatsv1.srvrpccnt, 613 sizeof(nfsstatsv1.srvrpccnt)); 614 bzero(nfsstatsv1.cbrpccnt, 615 sizeof(nfsstatsv1.cbrpccnt)); 616 } 617 } 618 goto out; 619 } else if (uap->flag & NFSSVC_NFSUSERDPORT) { 620 u_short sockport; 621 622 error = copyin(uap->argp, (caddr_t)&sockport, 623 sizeof (u_short)); 624 if (!error) 625 error = nfsrv_nfsuserdport(sockport, p); 626 } else if (uap->flag & NFSSVC_NFSUSERDDELPORT) { 627 nfsrv_nfsuserddelport(); 628 error = 0; 629 } 630 631 out: 632 NFSEXITCODE(error); 633 return (error); 634 } 635 636 /* 637 * called by all three modevent routines, so that it gets things 638 * initialized soon enough. 639 */ 640 void 641 newnfs_portinit(void) 642 { 643 static int inited = 0; 644 645 if (inited) 646 return; 647 inited = 1; 648 /* Initialize SMP locks used by both client and server. */ 649 mtx_init(&newnfsd_mtx, "newnfsd_mtx", NULL, MTX_DEF); 650 mtx_init(&nfs_state_mutex, "nfs_state_mutex", NULL, MTX_DEF); 651 mtx_init(&nfs_clstate_mutex, "nfs_clstate_mutex", NULL, MTX_DEF); 652 } 653 654 /* 655 * Determine if the file system supports NFSv4 ACLs. 656 * Return 1 if it does, 0 otherwise. 657 */ 658 int 659 nfs_supportsnfsv4acls(struct vnode *vp) 660 { 661 int error; 662 register_t retval; 663 664 ASSERT_VOP_LOCKED(vp, "nfs supports nfsv4acls"); 665 666 if (nfsrv_useacl == 0) 667 return (0); 668 error = VOP_PATHCONF(vp, _PC_ACL_NFS4, &retval); 669 if (error == 0 && retval != 0) 670 return (1); 671 return (0); 672 } 673 674 extern int (*nfsd_call_nfscommon)(struct thread *, struct nfssvc_args *); 675 676 /* 677 * Called once to initialize data structures... 678 */ 679 static int 680 nfscommon_modevent(module_t mod, int type, void *data) 681 { 682 int error = 0; 683 static int loaded = 0; 684 685 switch (type) { 686 case MOD_LOAD: 687 if (loaded) 688 goto out; 689 newnfs_portinit(); 690 mtx_init(&nfs_nameid_mutex, "nfs_nameid_mutex", NULL, MTX_DEF); 691 mtx_init(&nfs_sockl_mutex, "nfs_sockl_mutex", NULL, MTX_DEF); 692 mtx_init(&nfs_slock_mutex, "nfs_slock_mutex", NULL, MTX_DEF); 693 mtx_init(&nfs_req_mutex, "nfs_req_mutex", NULL, MTX_DEF); 694 mtx_init(&nfsrv_nfsuserdsock.nr_mtx, "nfsuserd", NULL, 695 MTX_DEF); 696 callout_init(&newnfsd_callout, 1); 697 newnfs_init(); 698 nfsd_call_nfscommon = nfssvc_nfscommon; 699 loaded = 1; 700 break; 701 702 case MOD_UNLOAD: 703 if (newnfs_numnfsd != 0 || nfsrv_nfsuserd != 0 || 704 nfs_numnfscbd != 0) { 705 error = EBUSY; 706 break; 707 } 708 709 nfsd_call_nfscommon = NULL; 710 callout_drain(&newnfsd_callout); 711 /* Clean out the name<-->id cache. */ 712 nfsrv_cleanusergroup(); 713 /* and get rid of the mutexes */ 714 mtx_destroy(&nfs_nameid_mutex); 715 mtx_destroy(&newnfsd_mtx); 716 mtx_destroy(&nfs_state_mutex); 717 mtx_destroy(&nfs_clstate_mutex); 718 mtx_destroy(&nfs_sockl_mutex); 719 mtx_destroy(&nfs_slock_mutex); 720 mtx_destroy(&nfs_req_mutex); 721 mtx_destroy(&nfsrv_nfsuserdsock.nr_mtx); 722 loaded = 0; 723 break; 724 default: 725 error = EOPNOTSUPP; 726 break; 727 } 728 729 out: 730 NFSEXITCODE(error); 731 return error; 732 } 733 static moduledata_t nfscommon_mod = { 734 "nfscommon", 735 nfscommon_modevent, 736 NULL, 737 }; 738 DECLARE_MODULE(nfscommon, nfscommon_mod, SI_SUB_VFS, SI_ORDER_ANY); 739 740 /* So that loader and kldload(2) can find us, wherever we are.. */ 741 MODULE_VERSION(nfscommon, 1); 742 MODULE_DEPEND(nfscommon, nfssvc, 1, 1, 1); 743 MODULE_DEPEND(nfscommon, krpc, 1, 1, 1); 744 745