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/smp.h> 44 #include <sys/sysctl.h> 45 #include <sys/taskqueue.h> 46 #include <rpc/rpc_com.h> 47 #include <vm/vm.h> 48 #include <vm/vm_object.h> 49 #include <vm/vm_page.h> 50 #include <vm/vm_param.h> 51 #include <vm/vm_map.h> 52 #include <vm/vm_kern.h> 53 #include <vm/vm_extern.h> 54 #include <vm/uma.h> 55 56 extern int nfscl_ticks; 57 extern int nfsrv_nfsuserd; 58 extern struct nfssockreq nfsrv_nfsuserdsock; 59 extern void (*nfsd_call_recall)(struct vnode *, int, struct ucred *, 60 struct thread *); 61 extern int nfsrv_useacl; 62 struct mount nfsv4root_mnt; 63 int newnfs_numnfsd = 0; 64 struct nfsstatsv1 nfsstatsv1; 65 int nfs_numnfscbd = 0; 66 int nfscl_debuglevel = 0; 67 char nfsv4_callbackaddr[INET6_ADDRSTRLEN]; 68 struct callout newnfsd_callout; 69 int nfsrv_lughashsize = 100; 70 void (*nfsd_call_servertimer)(void) = NULL; 71 void (*ncl_call_invalcaches)(struct vnode *) = NULL; 72 73 int nfs_pnfsio(task_fn_t *, void *); 74 75 static int nfs_realign_test; 76 static int nfs_realign_count; 77 static struct ext_nfsstats oldnfsstats; 78 79 SYSCTL_NODE(_vfs, OID_AUTO, nfs, CTLFLAG_RW, 0, "NFS filesystem"); 80 SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_test, CTLFLAG_RW, &nfs_realign_test, 81 0, "Number of realign tests done"); 82 SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_count, CTLFLAG_RW, &nfs_realign_count, 83 0, "Number of mbuf realignments done"); 84 SYSCTL_STRING(_vfs_nfs, OID_AUTO, callback_addr, CTLFLAG_RW, 85 nfsv4_callbackaddr, sizeof(nfsv4_callbackaddr), 86 "NFSv4 callback addr for server to use"); 87 SYSCTL_INT(_vfs_nfs, OID_AUTO, debuglevel, CTLFLAG_RW, &nfscl_debuglevel, 88 0, "Debug level for NFS client"); 89 SYSCTL_INT(_vfs_nfs, OID_AUTO, userhashsize, CTLFLAG_RDTUN, &nfsrv_lughashsize, 90 0, "Size of hash tables for uid/name mapping"); 91 int nfs_pnfsiothreads = 0; 92 SYSCTL_INT(_vfs_nfs, OID_AUTO, pnfsiothreads, CTLFLAG_RW, &nfs_pnfsiothreads, 93 0, "Number of pNFS mirror I/O threads"); 94 95 /* 96 * Defines for malloc 97 * (Here for FreeBSD, since they allocate storage.) 98 */ 99 MALLOC_DEFINE(M_NEWNFSRVCACHE, "NFSD srvcache", "NFSD Server Request Cache"); 100 MALLOC_DEFINE(M_NEWNFSDCLIENT, "NFSD V4client", "NFSD V4 Client Id"); 101 MALLOC_DEFINE(M_NEWNFSDSTATE, "NFSD V4state", 102 "NFSD V4 State (Openowner, Open, Lockowner, Delegation"); 103 MALLOC_DEFINE(M_NEWNFSDLOCK, "NFSD V4lock", "NFSD V4 byte range lock"); 104 MALLOC_DEFINE(M_NEWNFSDLOCKFILE, "NFSD lckfile", "NFSD Open/Lock file"); 105 MALLOC_DEFINE(M_NEWNFSSTRING, "NFSD string", "NFSD V4 long string"); 106 MALLOC_DEFINE(M_NEWNFSUSERGROUP, "NFSD usrgroup", "NFSD V4 User/group map"); 107 MALLOC_DEFINE(M_NEWNFSDREQ, "NFS req", "NFS request header"); 108 MALLOC_DEFINE(M_NEWNFSFH, "NFS fh", "NFS file handle"); 109 MALLOC_DEFINE(M_NEWNFSCLOWNER, "NFSCL owner", "NFSCL Open Owner"); 110 MALLOC_DEFINE(M_NEWNFSCLOPEN, "NFSCL open", "NFSCL Open"); 111 MALLOC_DEFINE(M_NEWNFSCLDELEG, "NFSCL deleg", "NFSCL Delegation"); 112 MALLOC_DEFINE(M_NEWNFSCLCLIENT, "NFSCL client", "NFSCL Client"); 113 MALLOC_DEFINE(M_NEWNFSCLLOCKOWNER, "NFSCL lckown", "NFSCL Lock Owner"); 114 MALLOC_DEFINE(M_NEWNFSCLLOCK, "NFSCL lck", "NFSCL Lock"); 115 MALLOC_DEFINE(M_NEWNFSV4NODE, "NEWNFSnode", "NFS vnode"); 116 MALLOC_DEFINE(M_NEWNFSDIRECTIO, "NEWdirectio", "NFS Direct IO buffer"); 117 MALLOC_DEFINE(M_NEWNFSDIROFF, "NFSCL diroffdiroff", 118 "NFS directory offset data"); 119 MALLOC_DEFINE(M_NEWNFSDROLLBACK, "NFSD rollback", 120 "NFS local lock rollback"); 121 MALLOC_DEFINE(M_NEWNFSLAYOUT, "NFSCL layout", "NFSv4.1 Layout"); 122 MALLOC_DEFINE(M_NEWNFSFLAYOUT, "NFSCL flayout", "NFSv4.1 File Layout"); 123 MALLOC_DEFINE(M_NEWNFSDEVINFO, "NFSCL devinfo", "NFSv4.1 Device Info"); 124 MALLOC_DEFINE(M_NEWNFSSOCKREQ, "NFSCL sockreq", "NFS Sock Req"); 125 MALLOC_DEFINE(M_NEWNFSCLDS, "NFSCL session", "NFSv4.1 Session"); 126 MALLOC_DEFINE(M_NEWNFSLAYRECALL, "NFSCL layrecall", "NFSv4.1 Layout Recall"); 127 MALLOC_DEFINE(M_NEWNFSDSESSION, "NFSD session", "NFSD Session for a client"); 128 129 /* 130 * Definition of mutex locks. 131 * newnfsd_mtx is used in nfsrvd_nfsd() to protect the nfs socket list 132 * and assorted other nfsd structures. 133 */ 134 struct mtx newnfsd_mtx; 135 struct mtx nfs_sockl_mutex; 136 struct mtx nfs_state_mutex; 137 struct mtx nfs_nameid_mutex; 138 struct mtx nfs_req_mutex; 139 struct mtx nfs_slock_mutex; 140 struct mtx nfs_clstate_mutex; 141 142 /* local functions */ 143 static int nfssvc_call(struct thread *, struct nfssvc_args *, struct ucred *); 144 145 #ifdef __NO_STRICT_ALIGNMENT 146 /* 147 * These architectures don't need re-alignment, so just return. 148 */ 149 int 150 newnfs_realign(struct mbuf **pm, int how) 151 { 152 153 return (0); 154 } 155 #else /* !__NO_STRICT_ALIGNMENT */ 156 /* 157 * newnfs_realign: 158 * 159 * Check for badly aligned mbuf data and realign by copying the unaligned 160 * portion of the data into a new mbuf chain and freeing the portions 161 * of the old chain that were replaced. 162 * 163 * We cannot simply realign the data within the existing mbuf chain 164 * because the underlying buffers may contain other rpc commands and 165 * we cannot afford to overwrite them. 166 * 167 * We would prefer to avoid this situation entirely. The situation does 168 * not occur with NFS/UDP and is supposed to only occasionally occur 169 * with TCP. Use vfs.nfs.realign_count and realign_test to check this. 170 * 171 */ 172 int 173 newnfs_realign(struct mbuf **pm, int how) 174 { 175 struct mbuf *m, *n; 176 int off, space; 177 178 ++nfs_realign_test; 179 while ((m = *pm) != NULL) { 180 if ((m->m_len & 0x3) || (mtod(m, intptr_t) & 0x3)) { 181 /* 182 * NB: we can't depend on m_pkthdr.len to help us 183 * decide what to do here. May not be worth doing 184 * the m_length calculation as m_copyback will 185 * expand the mbuf chain below as needed. 186 */ 187 space = m_length(m, NULL); 188 if (space >= MINCLSIZE) { 189 /* NB: m_copyback handles space > MCLBYTES */ 190 n = m_getcl(how, MT_DATA, 0); 191 } else 192 n = m_get(how, MT_DATA); 193 if (n == NULL) 194 return (ENOMEM); 195 /* 196 * Align the remainder of the mbuf chain. 197 */ 198 n->m_len = 0; 199 off = 0; 200 while (m != NULL) { 201 m_copyback(n, off, m->m_len, mtod(m, caddr_t)); 202 off += m->m_len; 203 m = m->m_next; 204 } 205 m_freem(*pm); 206 *pm = n; 207 ++nfs_realign_count; 208 break; 209 } 210 pm = &m->m_next; 211 } 212 213 return (0); 214 } 215 #endif /* __NO_STRICT_ALIGNMENT */ 216 217 #ifdef notdef 218 static void 219 nfsrv_object_create(struct vnode *vp, struct thread *td) 220 { 221 222 if (vp == NULL || vp->v_type != VREG) 223 return; 224 (void) vfs_object_create(vp, td, td->td_ucred); 225 } 226 #endif 227 228 /* 229 * Look up a file name. Basically just initialize stuff and call namei(). 230 */ 231 int 232 nfsrv_lookupfilename(struct nameidata *ndp, char *fname, NFSPROC_T *p) 233 { 234 int error; 235 236 NDINIT(ndp, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, fname, 237 p); 238 error = namei(ndp); 239 if (!error) { 240 NDFREE(ndp, NDF_ONLY_PNBUF); 241 } 242 return (error); 243 } 244 245 /* 246 * Copy NFS uid, gids to the cred structure. 247 */ 248 void 249 newnfs_copycred(struct nfscred *nfscr, struct ucred *cr) 250 { 251 252 KASSERT(nfscr->nfsc_ngroups >= 0, 253 ("newnfs_copycred: negative nfsc_ngroups")); 254 cr->cr_uid = nfscr->nfsc_uid; 255 crsetgroups(cr, nfscr->nfsc_ngroups, nfscr->nfsc_groups); 256 } 257 258 /* 259 * Map args from nfsmsleep() to msleep(). 260 */ 261 int 262 nfsmsleep(void *chan, void *mutex, int prio, const char *wmesg, 263 struct timespec *ts) 264 { 265 u_int64_t nsecval; 266 int error, timeo; 267 268 if (ts) { 269 timeo = hz * ts->tv_sec; 270 nsecval = (u_int64_t)ts->tv_nsec; 271 nsecval = ((nsecval * ((u_int64_t)hz)) + 500000000) / 272 1000000000; 273 timeo += (int)nsecval; 274 } else { 275 timeo = 0; 276 } 277 error = msleep(chan, (struct mtx *)mutex, prio, wmesg, timeo); 278 return (error); 279 } 280 281 /* 282 * Get the file system info for the server. For now, just assume FFS. 283 */ 284 void 285 nfsvno_getfs(struct nfsfsinfo *sip, int isdgram) 286 { 287 int pref; 288 289 /* 290 * XXX 291 * There should be file system VFS OP(s) to get this information. 292 * For now, assume ufs. 293 */ 294 if (isdgram) 295 pref = NFS_MAXDGRAMDATA; 296 else 297 pref = NFS_SRVMAXIO; 298 sip->fs_rtmax = NFS_SRVMAXIO; 299 sip->fs_rtpref = pref; 300 sip->fs_rtmult = NFS_FABLKSIZE; 301 sip->fs_wtmax = NFS_SRVMAXIO; 302 sip->fs_wtpref = pref; 303 sip->fs_wtmult = NFS_FABLKSIZE; 304 sip->fs_dtpref = pref; 305 sip->fs_maxfilesize = 0xffffffffffffffffull; 306 sip->fs_timedelta.tv_sec = 0; 307 sip->fs_timedelta.tv_nsec = 1; 308 sip->fs_properties = (NFSV3FSINFO_LINK | 309 NFSV3FSINFO_SYMLINK | NFSV3FSINFO_HOMOGENEOUS | 310 NFSV3FSINFO_CANSETTIME); 311 } 312 313 /* 314 * Do the pathconf vnode op. 315 */ 316 int 317 nfsvno_pathconf(struct vnode *vp, int flag, register_t *retf, 318 struct ucred *cred, struct thread *p) 319 { 320 int error; 321 322 error = VOP_PATHCONF(vp, flag, retf); 323 if (error == EOPNOTSUPP || error == EINVAL) { 324 /* 325 * Some file systems return EINVAL for name arguments not 326 * supported and some return EOPNOTSUPP for this case. 327 * So the NFSv3 Pathconf RPC doesn't fail for these cases, 328 * just fake them. 329 */ 330 switch (flag) { 331 case _PC_LINK_MAX: 332 *retf = LINK_MAX; 333 break; 334 case _PC_NAME_MAX: 335 *retf = NAME_MAX; 336 break; 337 case _PC_CHOWN_RESTRICTED: 338 *retf = 1; 339 break; 340 case _PC_NO_TRUNC: 341 *retf = 1; 342 break; 343 default: 344 /* 345 * Only happens if a _PC_xxx is added to the server, 346 * but this isn't updated. 347 */ 348 *retf = 0; 349 printf("nfsrvd pathconf flag=%d not supp\n", flag); 350 } 351 error = 0; 352 } 353 NFSEXITCODE(error); 354 return (error); 355 } 356 357 /* Fake nfsrv_atroot. Just return 0 */ 358 int 359 nfsrv_atroot(struct vnode *vp, uint64_t *retp) 360 { 361 362 return (0); 363 } 364 365 /* 366 * Set the credentials to refer to root. 367 * If only the various BSDen could agree on whether cr_gid is a separate 368 * field or cr_groups[0]... 369 */ 370 void 371 newnfs_setroot(struct ucred *cred) 372 { 373 374 cred->cr_uid = 0; 375 cred->cr_groups[0] = 0; 376 cred->cr_ngroups = 1; 377 } 378 379 /* 380 * Get the client credential. Used for Renew and recovery. 381 */ 382 struct ucred * 383 newnfs_getcred(void) 384 { 385 struct ucred *cred; 386 struct thread *td = curthread; 387 388 cred = crdup(td->td_ucred); 389 newnfs_setroot(cred); 390 return (cred); 391 } 392 393 /* 394 * Nfs timer routine 395 * Call the nfsd's timer function once/sec. 396 */ 397 void 398 newnfs_timer(void *arg) 399 { 400 static time_t lasttime = 0; 401 /* 402 * Call the server timer, if set up. 403 * The argument indicates if it is the next second and therefore 404 * leases should be checked. 405 */ 406 if (lasttime != NFSD_MONOSEC) { 407 lasttime = NFSD_MONOSEC; 408 if (nfsd_call_servertimer != NULL) 409 (*nfsd_call_servertimer)(); 410 } 411 callout_reset(&newnfsd_callout, nfscl_ticks, newnfs_timer, NULL); 412 } 413 414 415 /* 416 * Sleep for a short period of time unless errval == NFSERR_GRACE, where 417 * the sleep should be for 5 seconds. 418 * Since lbolt doesn't exist in FreeBSD-CURRENT, just use a timeout on 419 * an event that never gets a wakeup. Only return EINTR or 0. 420 */ 421 int 422 nfs_catnap(int prio, int errval, const char *wmesg) 423 { 424 static int non_event; 425 int ret; 426 427 if (errval == NFSERR_GRACE) 428 ret = tsleep(&non_event, prio, wmesg, 5 * hz); 429 else 430 ret = tsleep(&non_event, prio, wmesg, 1); 431 if (ret != EINTR) 432 ret = 0; 433 return (ret); 434 } 435 436 /* 437 * Get referral. For now, just fail. 438 */ 439 struct nfsreferral * 440 nfsv4root_getreferral(struct vnode *vp, struct vnode *dvp, u_int32_t fileno) 441 { 442 443 return (NULL); 444 } 445 446 static int 447 nfssvc_nfscommon(struct thread *td, struct nfssvc_args *uap) 448 { 449 int error; 450 451 error = nfssvc_call(td, uap, td->td_ucred); 452 NFSEXITCODE(error); 453 return (error); 454 } 455 456 static int 457 nfssvc_call(struct thread *p, struct nfssvc_args *uap, struct ucred *cred) 458 { 459 int error = EINVAL, i, j; 460 struct nfsd_idargs nid; 461 struct nfsd_oidargs onid; 462 struct { 463 int vers; /* Just the first field of nfsstats. */ 464 } nfsstatver; 465 466 if (uap->flag & NFSSVC_IDNAME) { 467 if ((uap->flag & NFSSVC_NEWSTRUCT) != 0) 468 error = copyin(uap->argp, &nid, sizeof(nid)); 469 else { 470 error = copyin(uap->argp, &onid, sizeof(onid)); 471 if (error == 0) { 472 nid.nid_flag = onid.nid_flag; 473 nid.nid_uid = onid.nid_uid; 474 nid.nid_gid = onid.nid_gid; 475 nid.nid_usermax = onid.nid_usermax; 476 nid.nid_usertimeout = onid.nid_usertimeout; 477 nid.nid_name = onid.nid_name; 478 nid.nid_namelen = onid.nid_namelen; 479 nid.nid_ngroup = 0; 480 nid.nid_grps = NULL; 481 } 482 } 483 if (error) 484 goto out; 485 error = nfssvc_idname(&nid); 486 goto out; 487 } else if (uap->flag & NFSSVC_GETSTATS) { 488 if ((uap->flag & NFSSVC_NEWSTRUCT) == 0) { 489 /* Copy fields to the old ext_nfsstat structure. */ 490 oldnfsstats.attrcache_hits = 491 nfsstatsv1.attrcache_hits; 492 oldnfsstats.attrcache_misses = 493 nfsstatsv1.attrcache_misses; 494 oldnfsstats.lookupcache_hits = 495 nfsstatsv1.lookupcache_hits; 496 oldnfsstats.lookupcache_misses = 497 nfsstatsv1.lookupcache_misses; 498 oldnfsstats.direofcache_hits = 499 nfsstatsv1.direofcache_hits; 500 oldnfsstats.direofcache_misses = 501 nfsstatsv1.direofcache_misses; 502 oldnfsstats.accesscache_hits = 503 nfsstatsv1.accesscache_hits; 504 oldnfsstats.accesscache_misses = 505 nfsstatsv1.accesscache_misses; 506 oldnfsstats.biocache_reads = 507 nfsstatsv1.biocache_reads; 508 oldnfsstats.read_bios = 509 nfsstatsv1.read_bios; 510 oldnfsstats.read_physios = 511 nfsstatsv1.read_physios; 512 oldnfsstats.biocache_writes = 513 nfsstatsv1.biocache_writes; 514 oldnfsstats.write_bios = 515 nfsstatsv1.write_bios; 516 oldnfsstats.write_physios = 517 nfsstatsv1.write_physios; 518 oldnfsstats.biocache_readlinks = 519 nfsstatsv1.biocache_readlinks; 520 oldnfsstats.readlink_bios = 521 nfsstatsv1.readlink_bios; 522 oldnfsstats.biocache_readdirs = 523 nfsstatsv1.biocache_readdirs; 524 oldnfsstats.readdir_bios = 525 nfsstatsv1.readdir_bios; 526 for (i = 0; i < NFSV4_NPROCS; i++) 527 oldnfsstats.rpccnt[i] = nfsstatsv1.rpccnt[i]; 528 oldnfsstats.rpcretries = nfsstatsv1.rpcretries; 529 for (i = 0; i < NFSV4OP_NOPS; i++) 530 oldnfsstats.srvrpccnt[i] = 531 nfsstatsv1.srvrpccnt[i]; 532 for (i = NFSV42_NOPS, j = NFSV4OP_NOPS; 533 i < NFSV42_NOPS + NFSV4OP_FAKENOPS; i++, j++) 534 oldnfsstats.srvrpccnt[j] = 535 nfsstatsv1.srvrpccnt[i]; 536 oldnfsstats.srvrpc_errs = nfsstatsv1.srvrpc_errs; 537 oldnfsstats.srv_errs = nfsstatsv1.srv_errs; 538 oldnfsstats.rpcrequests = nfsstatsv1.rpcrequests; 539 oldnfsstats.rpctimeouts = nfsstatsv1.rpctimeouts; 540 oldnfsstats.rpcunexpected = nfsstatsv1.rpcunexpected; 541 oldnfsstats.rpcinvalid = nfsstatsv1.rpcinvalid; 542 oldnfsstats.srvcache_inproghits = 543 nfsstatsv1.srvcache_inproghits; 544 oldnfsstats.srvcache_idemdonehits = 545 nfsstatsv1.srvcache_idemdonehits; 546 oldnfsstats.srvcache_nonidemdonehits = 547 nfsstatsv1.srvcache_nonidemdonehits; 548 oldnfsstats.srvcache_misses = 549 nfsstatsv1.srvcache_misses; 550 oldnfsstats.srvcache_tcppeak = 551 nfsstatsv1.srvcache_tcppeak; 552 oldnfsstats.srvcache_size = nfsstatsv1.srvcache_size; 553 oldnfsstats.srvclients = nfsstatsv1.srvclients; 554 oldnfsstats.srvopenowners = nfsstatsv1.srvopenowners; 555 oldnfsstats.srvopens = nfsstatsv1.srvopens; 556 oldnfsstats.srvlockowners = nfsstatsv1.srvlockowners; 557 oldnfsstats.srvlocks = nfsstatsv1.srvlocks; 558 oldnfsstats.srvdelegates = nfsstatsv1.srvdelegates; 559 for (i = 0; i < NFSV4OP_CBNOPS; i++) 560 oldnfsstats.cbrpccnt[i] = 561 nfsstatsv1.cbrpccnt[i]; 562 oldnfsstats.clopenowners = nfsstatsv1.clopenowners; 563 oldnfsstats.clopens = nfsstatsv1.clopens; 564 oldnfsstats.cllockowners = nfsstatsv1.cllockowners; 565 oldnfsstats.cllocks = nfsstatsv1.cllocks; 566 oldnfsstats.cldelegates = nfsstatsv1.cldelegates; 567 oldnfsstats.cllocalopenowners = 568 nfsstatsv1.cllocalopenowners; 569 oldnfsstats.cllocalopens = nfsstatsv1.cllocalopens; 570 oldnfsstats.cllocallockowners = 571 nfsstatsv1.cllocallockowners; 572 oldnfsstats.cllocallocks = nfsstatsv1.cllocallocks; 573 error = copyout(&oldnfsstats, uap->argp, 574 sizeof (oldnfsstats)); 575 } else { 576 error = copyin(uap->argp, &nfsstatver, 577 sizeof(nfsstatver)); 578 if (error == 0 && nfsstatver.vers != NFSSTATS_V1) 579 error = EPERM; 580 if (error == 0) 581 error = copyout(&nfsstatsv1, uap->argp, 582 sizeof (nfsstatsv1)); 583 } 584 if (error == 0) { 585 if ((uap->flag & NFSSVC_ZEROCLTSTATS) != 0) { 586 nfsstatsv1.attrcache_hits = 0; 587 nfsstatsv1.attrcache_misses = 0; 588 nfsstatsv1.lookupcache_hits = 0; 589 nfsstatsv1.lookupcache_misses = 0; 590 nfsstatsv1.direofcache_hits = 0; 591 nfsstatsv1.direofcache_misses = 0; 592 nfsstatsv1.accesscache_hits = 0; 593 nfsstatsv1.accesscache_misses = 0; 594 nfsstatsv1.biocache_reads = 0; 595 nfsstatsv1.read_bios = 0; 596 nfsstatsv1.read_physios = 0; 597 nfsstatsv1.biocache_writes = 0; 598 nfsstatsv1.write_bios = 0; 599 nfsstatsv1.write_physios = 0; 600 nfsstatsv1.biocache_readlinks = 0; 601 nfsstatsv1.readlink_bios = 0; 602 nfsstatsv1.biocache_readdirs = 0; 603 nfsstatsv1.readdir_bios = 0; 604 nfsstatsv1.rpcretries = 0; 605 nfsstatsv1.rpcrequests = 0; 606 nfsstatsv1.rpctimeouts = 0; 607 nfsstatsv1.rpcunexpected = 0; 608 nfsstatsv1.rpcinvalid = 0; 609 bzero(nfsstatsv1.rpccnt, 610 sizeof(nfsstatsv1.rpccnt)); 611 } 612 if ((uap->flag & NFSSVC_ZEROSRVSTATS) != 0) { 613 nfsstatsv1.srvrpc_errs = 0; 614 nfsstatsv1.srv_errs = 0; 615 nfsstatsv1.srvcache_inproghits = 0; 616 nfsstatsv1.srvcache_idemdonehits = 0; 617 nfsstatsv1.srvcache_nonidemdonehits = 0; 618 nfsstatsv1.srvcache_misses = 0; 619 nfsstatsv1.srvcache_tcppeak = 0; 620 bzero(nfsstatsv1.srvrpccnt, 621 sizeof(nfsstatsv1.srvrpccnt)); 622 bzero(nfsstatsv1.cbrpccnt, 623 sizeof(nfsstatsv1.cbrpccnt)); 624 } 625 } 626 goto out; 627 } else if (uap->flag & NFSSVC_NFSUSERDPORT) { 628 u_short sockport; 629 struct sockaddr *sad; 630 struct sockaddr_un *sun; 631 632 if ((uap->flag & NFSSVC_NEWSTRUCT) != 0) { 633 /* New nfsuserd using an AF_LOCAL socket. */ 634 sun = malloc(sizeof(struct sockaddr_un), M_SONAME, 635 M_WAITOK | M_ZERO); 636 error = copyinstr(uap->argp, sun->sun_path, 637 sizeof(sun->sun_path), NULL); 638 if (error != 0) { 639 free(sun, M_SONAME); 640 return (error); 641 } 642 sun->sun_family = AF_LOCAL; 643 sun->sun_len = SUN_LEN(sun); 644 sockport = 0; 645 sad = (struct sockaddr *)sun; 646 } else { 647 error = copyin(uap->argp, (caddr_t)&sockport, 648 sizeof (u_short)); 649 sad = NULL; 650 } 651 if (error == 0) 652 error = nfsrv_nfsuserdport(sad, sockport, p); 653 } else if (uap->flag & NFSSVC_NFSUSERDDELPORT) { 654 nfsrv_nfsuserddelport(); 655 error = 0; 656 } 657 658 out: 659 NFSEXITCODE(error); 660 return (error); 661 } 662 663 /* 664 * called by all three modevent routines, so that it gets things 665 * initialized soon enough. 666 */ 667 void 668 newnfs_portinit(void) 669 { 670 static int inited = 0; 671 672 if (inited) 673 return; 674 inited = 1; 675 /* Initialize SMP locks used by both client and server. */ 676 mtx_init(&newnfsd_mtx, "newnfsd_mtx", NULL, MTX_DEF); 677 mtx_init(&nfs_state_mutex, "nfs_state_mutex", NULL, MTX_DEF); 678 mtx_init(&nfs_clstate_mutex, "nfs_clstate_mutex", NULL, MTX_DEF); 679 } 680 681 /* 682 * Determine if the file system supports NFSv4 ACLs. 683 * Return 1 if it does, 0 otherwise. 684 */ 685 int 686 nfs_supportsnfsv4acls(struct vnode *vp) 687 { 688 int error; 689 register_t retval; 690 691 ASSERT_VOP_LOCKED(vp, "nfs supports nfsv4acls"); 692 693 if (nfsrv_useacl == 0) 694 return (0); 695 error = VOP_PATHCONF(vp, _PC_ACL_NFS4, &retval); 696 if (error == 0 && retval != 0) 697 return (1); 698 return (0); 699 } 700 701 /* 702 * These are the first fields of all the context structures passed into 703 * nfs_pnfsio(). 704 */ 705 struct pnfsio { 706 int done; 707 int inprog; 708 struct task tsk; 709 }; 710 711 /* 712 * Do a mirror I/O on a pNFS thread. 713 */ 714 int 715 nfs_pnfsio(task_fn_t *func, void *context) 716 { 717 struct pnfsio *pio; 718 int ret; 719 static struct taskqueue *pnfsioq = NULL; 720 721 pio = (struct pnfsio *)context; 722 if (pnfsioq == NULL) { 723 if (nfs_pnfsiothreads == 0) 724 nfs_pnfsiothreads = mp_ncpus * 4; 725 pnfsioq = taskqueue_create("pnfsioq", M_WAITOK, 726 taskqueue_thread_enqueue, &pnfsioq); 727 if (pnfsioq == NULL) 728 return (ENOMEM); 729 ret = taskqueue_start_threads(&pnfsioq, nfs_pnfsiothreads, 730 0, "pnfsiot"); 731 if (ret != 0) { 732 taskqueue_free(pnfsioq); 733 pnfsioq = NULL; 734 return (ret); 735 } 736 } 737 pio->inprog = 1; 738 TASK_INIT(&pio->tsk, 0, func, context); 739 ret = taskqueue_enqueue(pnfsioq, &pio->tsk); 740 if (ret != 0) 741 pio->inprog = 0; 742 return (ret); 743 } 744 745 extern int (*nfsd_call_nfscommon)(struct thread *, struct nfssvc_args *); 746 747 /* 748 * Called once to initialize data structures... 749 */ 750 static int 751 nfscommon_modevent(module_t mod, int type, void *data) 752 { 753 int error = 0; 754 static int loaded = 0; 755 756 switch (type) { 757 case MOD_LOAD: 758 if (loaded) 759 goto out; 760 newnfs_portinit(); 761 mtx_init(&nfs_nameid_mutex, "nfs_nameid_mutex", NULL, MTX_DEF); 762 mtx_init(&nfs_sockl_mutex, "nfs_sockl_mutex", NULL, MTX_DEF); 763 mtx_init(&nfs_slock_mutex, "nfs_slock_mutex", NULL, MTX_DEF); 764 mtx_init(&nfs_req_mutex, "nfs_req_mutex", NULL, MTX_DEF); 765 mtx_init(&nfsrv_nfsuserdsock.nr_mtx, "nfsuserd", NULL, 766 MTX_DEF); 767 callout_init(&newnfsd_callout, 1); 768 newnfs_init(); 769 nfsd_call_nfscommon = nfssvc_nfscommon; 770 loaded = 1; 771 break; 772 773 case MOD_UNLOAD: 774 if (newnfs_numnfsd != 0 || nfsrv_nfsuserd != 0 || 775 nfs_numnfscbd != 0) { 776 error = EBUSY; 777 break; 778 } 779 780 nfsd_call_nfscommon = NULL; 781 callout_drain(&newnfsd_callout); 782 /* Clean out the name<-->id cache. */ 783 nfsrv_cleanusergroup(); 784 /* and get rid of the mutexes */ 785 mtx_destroy(&nfs_nameid_mutex); 786 mtx_destroy(&newnfsd_mtx); 787 mtx_destroy(&nfs_state_mutex); 788 mtx_destroy(&nfs_clstate_mutex); 789 mtx_destroy(&nfs_sockl_mutex); 790 mtx_destroy(&nfs_slock_mutex); 791 mtx_destroy(&nfs_req_mutex); 792 mtx_destroy(&nfsrv_nfsuserdsock.nr_mtx); 793 loaded = 0; 794 break; 795 default: 796 error = EOPNOTSUPP; 797 break; 798 } 799 800 out: 801 NFSEXITCODE(error); 802 return error; 803 } 804 static moduledata_t nfscommon_mod = { 805 "nfscommon", 806 nfscommon_modevent, 807 NULL, 808 }; 809 DECLARE_MODULE(nfscommon, nfscommon_mod, SI_SUB_VFS, SI_ORDER_ANY); 810 811 /* So that loader and kldload(2) can find us, wherever we are.. */ 812 MODULE_VERSION(nfscommon, 1); 813 MODULE_DEPEND(nfscommon, nfssvc, 1, 1, 1); 814 MODULE_DEPEND(nfscommon, krpc, 1, 1, 1); 815 816