1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Rick Macklem at The University of Guelph. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 */ 35 36 #include <sys/cdefs.h> 37 __FBSDID("$FreeBSD$"); 38 39 /* 40 * Functions that need to be different for different versions of BSD 41 * kernel should be kept here, along with any global storage specific 42 * to this BSD variant. 43 */ 44 #include <fs/nfs/nfsport.h> 45 #include <sys/smp.h> 46 #include <sys/sysctl.h> 47 #include <sys/taskqueue.h> 48 #include <rpc/rpc_com.h> 49 #include <vm/vm.h> 50 #include <vm/vm_object.h> 51 #include <vm/vm_page.h> 52 #include <vm/vm_param.h> 53 #include <vm/vm_map.h> 54 #include <vm/vm_kern.h> 55 #include <vm/vm_extern.h> 56 #include <vm/uma.h> 57 58 extern int nfscl_ticks; 59 extern nfsuserd_state nfsrv_nfsuserd; 60 extern struct nfssockreq nfsrv_nfsuserdsock; 61 extern void (*nfsd_call_recall)(struct vnode *, int, struct ucred *, 62 struct thread *); 63 extern int nfsrv_useacl; 64 struct mount nfsv4root_mnt; 65 int newnfs_numnfsd = 0; 66 struct nfsstatsv1 nfsstatsv1; 67 int nfs_numnfscbd = 0; 68 int nfscl_debuglevel = 0; 69 char nfsv4_callbackaddr[INET6_ADDRSTRLEN]; 70 struct callout newnfsd_callout; 71 int nfsrv_lughashsize = 100; 72 struct mtx nfsrv_dslock_mtx; 73 struct nfsdevicehead nfsrv_devidhead; 74 volatile int nfsrv_devidcnt = 0; 75 void (*nfsd_call_servertimer)(void) = NULL; 76 void (*ncl_call_invalcaches)(struct vnode *) = NULL; 77 vop_advlock_t *nfs_advlock_p = NULL; 78 vop_reclaim_t *nfs_reclaim_p = NULL; 79 uint32_t nfs_srvmaxio = NFS_SRVMAXIO; 80 81 int nfs_pnfsio(task_fn_t *, void *); 82 83 static int nfs_realign_test; 84 static int nfs_realign_count; 85 static struct ext_nfsstats oldnfsstats; 86 static struct nfsstatsov1 nfsstatsov1; 87 88 SYSCTL_NODE(_vfs, OID_AUTO, nfs, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 89 "NFS filesystem"); 90 SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_test, CTLFLAG_RW, &nfs_realign_test, 91 0, "Number of realign tests done"); 92 SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_count, CTLFLAG_RW, &nfs_realign_count, 93 0, "Number of mbuf realignments done"); 94 SYSCTL_STRING(_vfs_nfs, OID_AUTO, callback_addr, CTLFLAG_RW, 95 nfsv4_callbackaddr, sizeof(nfsv4_callbackaddr), 96 "NFSv4 callback addr for server to use"); 97 SYSCTL_INT(_vfs_nfs, OID_AUTO, debuglevel, CTLFLAG_RW, &nfscl_debuglevel, 98 0, "Debug level for NFS client"); 99 SYSCTL_INT(_vfs_nfs, OID_AUTO, userhashsize, CTLFLAG_RDTUN, &nfsrv_lughashsize, 100 0, "Size of hash tables for uid/name mapping"); 101 int nfs_pnfsiothreads = -1; 102 SYSCTL_INT(_vfs_nfs, OID_AUTO, pnfsiothreads, CTLFLAG_RW, &nfs_pnfsiothreads, 103 0, "Number of pNFS mirror I/O threads"); 104 105 /* 106 * Defines for malloc 107 * (Here for FreeBSD, since they allocate storage.) 108 */ 109 MALLOC_DEFINE(M_NEWNFSRVCACHE, "NFSD srvcache", "NFSD Server Request Cache"); 110 MALLOC_DEFINE(M_NEWNFSDCLIENT, "NFSD V4client", "NFSD V4 Client Id"); 111 MALLOC_DEFINE(M_NEWNFSDSTATE, "NFSD V4state", 112 "NFSD V4 State (Openowner, Open, Lockowner, Delegation"); 113 MALLOC_DEFINE(M_NEWNFSDLOCK, "NFSD V4lock", "NFSD V4 byte range lock"); 114 MALLOC_DEFINE(M_NEWNFSDLOCKFILE, "NFSD lckfile", "NFSD Open/Lock file"); 115 MALLOC_DEFINE(M_NEWNFSSTRING, "NFSD string", "NFSD V4 long string"); 116 MALLOC_DEFINE(M_NEWNFSUSERGROUP, "NFSD usrgroup", "NFSD V4 User/group map"); 117 MALLOC_DEFINE(M_NEWNFSDREQ, "NFS req", "NFS request header"); 118 MALLOC_DEFINE(M_NEWNFSFH, "NFS fh", "NFS file handle"); 119 MALLOC_DEFINE(M_NEWNFSCLOWNER, "NFSCL owner", "NFSCL Open Owner"); 120 MALLOC_DEFINE(M_NEWNFSCLOPEN, "NFSCL open", "NFSCL Open"); 121 MALLOC_DEFINE(M_NEWNFSCLDELEG, "NFSCL deleg", "NFSCL Delegation"); 122 MALLOC_DEFINE(M_NEWNFSCLCLIENT, "NFSCL client", "NFSCL Client"); 123 MALLOC_DEFINE(M_NEWNFSCLLOCKOWNER, "NFSCL lckown", "NFSCL Lock Owner"); 124 MALLOC_DEFINE(M_NEWNFSCLLOCK, "NFSCL lck", "NFSCL Lock"); 125 MALLOC_DEFINE(M_NEWNFSV4NODE, "NEWNFSnode", "NFS vnode"); 126 MALLOC_DEFINE(M_NEWNFSDIRECTIO, "NEWdirectio", "NFS Direct IO buffer"); 127 MALLOC_DEFINE(M_NEWNFSDIROFF, "NFSCL diroff", 128 "NFS directory offset data"); 129 MALLOC_DEFINE(M_NEWNFSDROLLBACK, "NFSD rollback", 130 "NFS local lock rollback"); 131 MALLOC_DEFINE(M_NEWNFSLAYOUT, "NFSCL layout", "NFSv4.1 Layout"); 132 MALLOC_DEFINE(M_NEWNFSFLAYOUT, "NFSCL flayout", "NFSv4.1 File Layout"); 133 MALLOC_DEFINE(M_NEWNFSDEVINFO, "NFSCL devinfo", "NFSv4.1 Device Info"); 134 MALLOC_DEFINE(M_NEWNFSSOCKREQ, "NFSCL sockreq", "NFS Sock Req"); 135 MALLOC_DEFINE(M_NEWNFSCLDS, "NFSCL session", "NFSv4.1 Session"); 136 MALLOC_DEFINE(M_NEWNFSLAYRECALL, "NFSCL layrecall", "NFSv4.1 Layout Recall"); 137 MALLOC_DEFINE(M_NEWNFSDSESSION, "NFSD session", "NFSD Session for a client"); 138 139 /* 140 * Definition of mutex locks. 141 * newnfsd_mtx is used in nfsrvd_nfsd() to protect the nfs socket list 142 * and assorted other nfsd structures. 143 */ 144 struct mtx newnfsd_mtx; 145 struct mtx nfs_sockl_mutex; 146 struct mtx nfs_state_mutex; 147 struct mtx nfs_nameid_mutex; 148 struct mtx nfs_req_mutex; 149 struct mtx nfs_slock_mutex; 150 struct mtx nfs_clstate_mutex; 151 152 /* local functions */ 153 static int nfssvc_call(struct thread *, struct nfssvc_args *, struct ucred *); 154 155 #ifdef __NO_STRICT_ALIGNMENT 156 /* 157 * These architectures don't need re-alignment, so just return. 158 */ 159 int 160 newnfs_realign(struct mbuf **pm, int how) 161 { 162 163 return (0); 164 } 165 #else /* !__NO_STRICT_ALIGNMENT */ 166 /* 167 * newnfs_realign: 168 * 169 * Check for badly aligned mbuf data and realign by copying the unaligned 170 * portion of the data into a new mbuf chain and freeing the portions 171 * of the old chain that were replaced. 172 * 173 * We cannot simply realign the data within the existing mbuf chain 174 * because the underlying buffers may contain other rpc commands and 175 * we cannot afford to overwrite them. 176 * 177 * We would prefer to avoid this situation entirely. The situation does 178 * not occur with NFS/UDP and is supposed to only occasionally occur 179 * with TCP. Use vfs.nfs.realign_count and realign_test to check this. 180 * 181 */ 182 int 183 newnfs_realign(struct mbuf **pm, int how) 184 { 185 struct mbuf *m, *n; 186 int off, space; 187 188 ++nfs_realign_test; 189 while ((m = *pm) != NULL) { 190 if ((m->m_len & 0x3) || (mtod(m, intptr_t) & 0x3)) { 191 /* 192 * NB: we can't depend on m_pkthdr.len to help us 193 * decide what to do here. May not be worth doing 194 * the m_length calculation as m_copyback will 195 * expand the mbuf chain below as needed. 196 */ 197 space = m_length(m, NULL); 198 if (space >= MINCLSIZE) { 199 /* NB: m_copyback handles space > MCLBYTES */ 200 n = m_getcl(how, MT_DATA, 0); 201 } else 202 n = m_get(how, MT_DATA); 203 if (n == NULL) 204 return (ENOMEM); 205 /* 206 * Align the remainder of the mbuf chain. 207 */ 208 n->m_len = 0; 209 off = 0; 210 while (m != NULL) { 211 m_copyback(n, off, m->m_len, mtod(m, caddr_t)); 212 off += m->m_len; 213 m = m->m_next; 214 } 215 m_freem(*pm); 216 *pm = n; 217 ++nfs_realign_count; 218 break; 219 } 220 pm = &m->m_next; 221 } 222 223 return (0); 224 } 225 #endif /* __NO_STRICT_ALIGNMENT */ 226 227 #ifdef notdef 228 static void 229 nfsrv_object_create(struct vnode *vp, struct thread *td) 230 { 231 232 if (vp == NULL || vp->v_type != VREG) 233 return; 234 (void) vfs_object_create(vp, td, td->td_ucred); 235 } 236 #endif 237 238 /* 239 * Look up a file name. Basically just initialize stuff and call namei(). 240 */ 241 int 242 nfsrv_lookupfilename(struct nameidata *ndp, char *fname, NFSPROC_T *p) 243 { 244 int error; 245 246 NDINIT(ndp, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, fname, 247 p); 248 error = namei(ndp); 249 if (!error) { 250 NDFREE(ndp, NDF_ONLY_PNBUF); 251 } 252 return (error); 253 } 254 255 /* 256 * Copy NFS uid, gids to the cred structure. 257 */ 258 void 259 newnfs_copycred(struct nfscred *nfscr, struct ucred *cr) 260 { 261 262 KASSERT(nfscr->nfsc_ngroups >= 0, 263 ("newnfs_copycred: negative nfsc_ngroups")); 264 cr->cr_uid = nfscr->nfsc_uid; 265 crsetgroups(cr, nfscr->nfsc_ngroups, nfscr->nfsc_groups); 266 } 267 268 /* 269 * Map args from nfsmsleep() to msleep(). 270 */ 271 int 272 nfsmsleep(void *chan, void *mutex, int prio, const char *wmesg, 273 struct timespec *ts) 274 { 275 u_int64_t nsecval; 276 int error, timeo; 277 278 if (ts) { 279 timeo = hz * ts->tv_sec; 280 nsecval = (u_int64_t)ts->tv_nsec; 281 nsecval = ((nsecval * ((u_int64_t)hz)) + 500000000) / 282 1000000000; 283 timeo += (int)nsecval; 284 } else { 285 timeo = 0; 286 } 287 error = msleep(chan, (struct mtx *)mutex, prio, wmesg, timeo); 288 return (error); 289 } 290 291 /* 292 * Get the file system info for the server. For now, just assume FFS. 293 */ 294 void 295 nfsvno_getfs(struct nfsfsinfo *sip, int isdgram) 296 { 297 int pref; 298 299 /* 300 * XXX 301 * There should be file system VFS OP(s) to get this information. 302 * For now, assume ufs. 303 */ 304 if (isdgram) 305 pref = NFS_MAXDGRAMDATA; 306 else 307 pref = nfs_srvmaxio; 308 sip->fs_rtmax = nfs_srvmaxio; 309 sip->fs_rtpref = pref; 310 sip->fs_rtmult = NFS_FABLKSIZE; 311 sip->fs_wtmax = nfs_srvmaxio; 312 sip->fs_wtpref = pref; 313 sip->fs_wtmult = NFS_FABLKSIZE; 314 sip->fs_dtpref = pref; 315 sip->fs_maxfilesize = 0xffffffffffffffffull; 316 sip->fs_timedelta.tv_sec = 0; 317 sip->fs_timedelta.tv_nsec = 1; 318 sip->fs_properties = (NFSV3FSINFO_LINK | 319 NFSV3FSINFO_SYMLINK | NFSV3FSINFO_HOMOGENEOUS | 320 NFSV3FSINFO_CANSETTIME); 321 } 322 323 /* 324 * Do the pathconf vnode op. 325 */ 326 int 327 nfsvno_pathconf(struct vnode *vp, int flag, long *retf, 328 struct ucred *cred, struct thread *p) 329 { 330 int error; 331 332 error = VOP_PATHCONF(vp, flag, retf); 333 if (error == EOPNOTSUPP || error == EINVAL) { 334 /* 335 * Some file systems return EINVAL for name arguments not 336 * supported and some return EOPNOTSUPP for this case. 337 * So the NFSv3 Pathconf RPC doesn't fail for these cases, 338 * just fake them. 339 */ 340 switch (flag) { 341 case _PC_LINK_MAX: 342 *retf = NFS_LINK_MAX; 343 break; 344 case _PC_NAME_MAX: 345 *retf = NAME_MAX; 346 break; 347 case _PC_CHOWN_RESTRICTED: 348 *retf = 1; 349 break; 350 case _PC_NO_TRUNC: 351 *retf = 1; 352 break; 353 default: 354 /* 355 * Only happens if a _PC_xxx is added to the server, 356 * but this isn't updated. 357 */ 358 *retf = 0; 359 printf("nfsrvd pathconf flag=%d not supp\n", flag); 360 } 361 error = 0; 362 } 363 NFSEXITCODE(error); 364 return (error); 365 } 366 367 /* Fake nfsrv_atroot. Just return 0 */ 368 int 369 nfsrv_atroot(struct vnode *vp, uint64_t *retp) 370 { 371 372 return (0); 373 } 374 375 /* 376 * Set the credentials to refer to root. 377 * If only the various BSDen could agree on whether cr_gid is a separate 378 * field or cr_groups[0]... 379 */ 380 void 381 newnfs_setroot(struct ucred *cred) 382 { 383 384 cred->cr_uid = 0; 385 cred->cr_groups[0] = 0; 386 cred->cr_ngroups = 1; 387 } 388 389 /* 390 * Get the client credential. Used for Renew and recovery. 391 */ 392 struct ucred * 393 newnfs_getcred(void) 394 { 395 struct ucred *cred; 396 struct thread *td = curthread; 397 398 cred = crdup(td->td_ucred); 399 newnfs_setroot(cred); 400 return (cred); 401 } 402 403 /* 404 * Nfs timer routine 405 * Call the nfsd's timer function once/sec. 406 */ 407 void 408 newnfs_timer(void *arg) 409 { 410 static time_t lasttime = 0; 411 /* 412 * Call the server timer, if set up. 413 * The argument indicates if it is the next second and therefore 414 * leases should be checked. 415 */ 416 if (lasttime != NFSD_MONOSEC) { 417 lasttime = NFSD_MONOSEC; 418 if (nfsd_call_servertimer != NULL) 419 (*nfsd_call_servertimer)(); 420 } 421 callout_reset(&newnfsd_callout, nfscl_ticks, newnfs_timer, NULL); 422 } 423 424 /* 425 * Sleep for a short period of time unless errval == NFSERR_GRACE, where 426 * the sleep should be for 5 seconds. 427 * Since lbolt doesn't exist in FreeBSD-CURRENT, just use a timeout on 428 * an event that never gets a wakeup. Only return EINTR or 0. 429 */ 430 int 431 nfs_catnap(int prio, int errval, const char *wmesg) 432 { 433 static int non_event; 434 int ret; 435 436 if (errval == NFSERR_GRACE) 437 ret = tsleep(&non_event, prio, wmesg, 5 * hz); 438 else 439 ret = tsleep(&non_event, prio, wmesg, 1); 440 if (ret != EINTR) 441 ret = 0; 442 return (ret); 443 } 444 445 /* 446 * Get referral. For now, just fail. 447 */ 448 struct nfsreferral * 449 nfsv4root_getreferral(struct vnode *vp, struct vnode *dvp, u_int32_t fileno) 450 { 451 452 return (NULL); 453 } 454 455 static int 456 nfssvc_nfscommon(struct thread *td, struct nfssvc_args *uap) 457 { 458 int error; 459 460 error = nfssvc_call(td, uap, td->td_ucred); 461 NFSEXITCODE(error); 462 return (error); 463 } 464 465 static int 466 nfssvc_call(struct thread *p, struct nfssvc_args *uap, struct ucred *cred) 467 { 468 int error = EINVAL, i, j; 469 struct nfsd_idargs nid; 470 struct nfsd_oidargs onid; 471 struct { 472 int vers; /* Just the first field of nfsstats. */ 473 } nfsstatver; 474 475 if (uap->flag & NFSSVC_IDNAME) { 476 if ((uap->flag & NFSSVC_NEWSTRUCT) != 0) 477 error = copyin(uap->argp, &nid, sizeof(nid)); 478 else { 479 error = copyin(uap->argp, &onid, sizeof(onid)); 480 if (error == 0) { 481 nid.nid_flag = onid.nid_flag; 482 nid.nid_uid = onid.nid_uid; 483 nid.nid_gid = onid.nid_gid; 484 nid.nid_usermax = onid.nid_usermax; 485 nid.nid_usertimeout = onid.nid_usertimeout; 486 nid.nid_name = onid.nid_name; 487 nid.nid_namelen = onid.nid_namelen; 488 nid.nid_ngroup = 0; 489 nid.nid_grps = NULL; 490 } 491 } 492 if (error) 493 goto out; 494 error = nfssvc_idname(&nid); 495 goto out; 496 } else if (uap->flag & NFSSVC_GETSTATS) { 497 if ((uap->flag & NFSSVC_NEWSTRUCT) == 0) { 498 /* Copy fields to the old ext_nfsstat structure. */ 499 oldnfsstats.attrcache_hits = 500 nfsstatsv1.attrcache_hits; 501 oldnfsstats.attrcache_misses = 502 nfsstatsv1.attrcache_misses; 503 oldnfsstats.lookupcache_hits = 504 nfsstatsv1.lookupcache_hits; 505 oldnfsstats.lookupcache_misses = 506 nfsstatsv1.lookupcache_misses; 507 oldnfsstats.direofcache_hits = 508 nfsstatsv1.direofcache_hits; 509 oldnfsstats.direofcache_misses = 510 nfsstatsv1.direofcache_misses; 511 oldnfsstats.accesscache_hits = 512 nfsstatsv1.accesscache_hits; 513 oldnfsstats.accesscache_misses = 514 nfsstatsv1.accesscache_misses; 515 oldnfsstats.biocache_reads = 516 nfsstatsv1.biocache_reads; 517 oldnfsstats.read_bios = 518 nfsstatsv1.read_bios; 519 oldnfsstats.read_physios = 520 nfsstatsv1.read_physios; 521 oldnfsstats.biocache_writes = 522 nfsstatsv1.biocache_writes; 523 oldnfsstats.write_bios = 524 nfsstatsv1.write_bios; 525 oldnfsstats.write_physios = 526 nfsstatsv1.write_physios; 527 oldnfsstats.biocache_readlinks = 528 nfsstatsv1.biocache_readlinks; 529 oldnfsstats.readlink_bios = 530 nfsstatsv1.readlink_bios; 531 oldnfsstats.biocache_readdirs = 532 nfsstatsv1.biocache_readdirs; 533 oldnfsstats.readdir_bios = 534 nfsstatsv1.readdir_bios; 535 for (i = 0; i < NFSV4_NPROCS; i++) 536 oldnfsstats.rpccnt[i] = nfsstatsv1.rpccnt[i]; 537 oldnfsstats.rpcretries = nfsstatsv1.rpcretries; 538 for (i = 0; i < NFSV4OP_NOPS; i++) 539 oldnfsstats.srvrpccnt[i] = 540 nfsstatsv1.srvrpccnt[i]; 541 for (i = NFSV42_NOPS, j = NFSV4OP_NOPS; 542 i < NFSV42_NOPS + NFSV4OP_FAKENOPS; i++, j++) 543 oldnfsstats.srvrpccnt[j] = 544 nfsstatsv1.srvrpccnt[i]; 545 oldnfsstats.reserved_0 = 0; 546 oldnfsstats.reserved_1 = 0; 547 oldnfsstats.rpcrequests = nfsstatsv1.rpcrequests; 548 oldnfsstats.rpctimeouts = nfsstatsv1.rpctimeouts; 549 oldnfsstats.rpcunexpected = nfsstatsv1.rpcunexpected; 550 oldnfsstats.rpcinvalid = nfsstatsv1.rpcinvalid; 551 oldnfsstats.srvcache_inproghits = 552 nfsstatsv1.srvcache_inproghits; 553 oldnfsstats.reserved_2 = 0; 554 oldnfsstats.srvcache_nonidemdonehits = 555 nfsstatsv1.srvcache_nonidemdonehits; 556 oldnfsstats.srvcache_misses = 557 nfsstatsv1.srvcache_misses; 558 oldnfsstats.srvcache_tcppeak = 559 nfsstatsv1.srvcache_tcppeak; 560 oldnfsstats.srvcache_size = nfsstatsv1.srvcache_size; 561 oldnfsstats.srvclients = nfsstatsv1.srvclients; 562 oldnfsstats.srvopenowners = nfsstatsv1.srvopenowners; 563 oldnfsstats.srvopens = nfsstatsv1.srvopens; 564 oldnfsstats.srvlockowners = nfsstatsv1.srvlockowners; 565 oldnfsstats.srvlocks = nfsstatsv1.srvlocks; 566 oldnfsstats.srvdelegates = nfsstatsv1.srvdelegates; 567 for (i = 0; i < NFSV4OP_CBNOPS; i++) 568 oldnfsstats.cbrpccnt[i] = 569 nfsstatsv1.cbrpccnt[i]; 570 oldnfsstats.clopenowners = nfsstatsv1.clopenowners; 571 oldnfsstats.clopens = nfsstatsv1.clopens; 572 oldnfsstats.cllockowners = nfsstatsv1.cllockowners; 573 oldnfsstats.cllocks = nfsstatsv1.cllocks; 574 oldnfsstats.cldelegates = nfsstatsv1.cldelegates; 575 oldnfsstats.cllocalopenowners = 576 nfsstatsv1.cllocalopenowners; 577 oldnfsstats.cllocalopens = nfsstatsv1.cllocalopens; 578 oldnfsstats.cllocallockowners = 579 nfsstatsv1.cllocallockowners; 580 oldnfsstats.cllocallocks = nfsstatsv1.cllocallocks; 581 error = copyout(&oldnfsstats, uap->argp, 582 sizeof (oldnfsstats)); 583 } else { 584 error = copyin(uap->argp, &nfsstatver, 585 sizeof(nfsstatver)); 586 if (error == 0) { 587 if (nfsstatver.vers == NFSSTATS_OV1) { 588 /* Copy nfsstatsv1 to nfsstatsov1. */ 589 nfsstatsov1.attrcache_hits = 590 nfsstatsv1.attrcache_hits; 591 nfsstatsov1.attrcache_misses = 592 nfsstatsv1.attrcache_misses; 593 nfsstatsov1.lookupcache_hits = 594 nfsstatsv1.lookupcache_hits; 595 nfsstatsov1.lookupcache_misses = 596 nfsstatsv1.lookupcache_misses; 597 nfsstatsov1.direofcache_hits = 598 nfsstatsv1.direofcache_hits; 599 nfsstatsov1.direofcache_misses = 600 nfsstatsv1.direofcache_misses; 601 nfsstatsov1.accesscache_hits = 602 nfsstatsv1.accesscache_hits; 603 nfsstatsov1.accesscache_misses = 604 nfsstatsv1.accesscache_misses; 605 nfsstatsov1.biocache_reads = 606 nfsstatsv1.biocache_reads; 607 nfsstatsov1.read_bios = 608 nfsstatsv1.read_bios; 609 nfsstatsov1.read_physios = 610 nfsstatsv1.read_physios; 611 nfsstatsov1.biocache_writes = 612 nfsstatsv1.biocache_writes; 613 nfsstatsov1.write_bios = 614 nfsstatsv1.write_bios; 615 nfsstatsov1.write_physios = 616 nfsstatsv1.write_physios; 617 nfsstatsov1.biocache_readlinks = 618 nfsstatsv1.biocache_readlinks; 619 nfsstatsov1.readlink_bios = 620 nfsstatsv1.readlink_bios; 621 nfsstatsov1.biocache_readdirs = 622 nfsstatsv1.biocache_readdirs; 623 nfsstatsov1.readdir_bios = 624 nfsstatsv1.readdir_bios; 625 for (i = 0; i < NFSV42_NPROCS; i++) 626 nfsstatsov1.rpccnt[i] = 627 nfsstatsv1.rpccnt[i]; 628 nfsstatsov1.rpcretries = 629 nfsstatsv1.rpcretries; 630 for (i = 0; i < NFSV42_PURENOPS; i++) 631 nfsstatsov1.srvrpccnt[i] = 632 nfsstatsv1.srvrpccnt[i]; 633 for (i = NFSV42_NOPS, 634 j = NFSV42_PURENOPS; 635 i < NFSV42_NOPS + NFSV4OP_FAKENOPS; 636 i++, j++) 637 nfsstatsov1.srvrpccnt[j] = 638 nfsstatsv1.srvrpccnt[i]; 639 nfsstatsov1.reserved_0 = 0; 640 nfsstatsov1.reserved_1 = 0; 641 nfsstatsov1.rpcrequests = 642 nfsstatsv1.rpcrequests; 643 nfsstatsov1.rpctimeouts = 644 nfsstatsv1.rpctimeouts; 645 nfsstatsov1.rpcunexpected = 646 nfsstatsv1.rpcunexpected; 647 nfsstatsov1.rpcinvalid = 648 nfsstatsv1.rpcinvalid; 649 nfsstatsov1.srvcache_inproghits = 650 nfsstatsv1.srvcache_inproghits; 651 nfsstatsov1.reserved_2 = 0; 652 nfsstatsov1.srvcache_nonidemdonehits = 653 nfsstatsv1.srvcache_nonidemdonehits; 654 nfsstatsov1.srvcache_misses = 655 nfsstatsv1.srvcache_misses; 656 nfsstatsov1.srvcache_tcppeak = 657 nfsstatsv1.srvcache_tcppeak; 658 nfsstatsov1.srvcache_size = 659 nfsstatsv1.srvcache_size; 660 nfsstatsov1.srvclients = 661 nfsstatsv1.srvclients; 662 nfsstatsov1.srvopenowners = 663 nfsstatsv1.srvopenowners; 664 nfsstatsov1.srvopens = 665 nfsstatsv1.srvopens; 666 nfsstatsov1.srvlockowners = 667 nfsstatsv1.srvlockowners; 668 nfsstatsov1.srvlocks = 669 nfsstatsv1.srvlocks; 670 nfsstatsov1.srvdelegates = 671 nfsstatsv1.srvdelegates; 672 for (i = 0; i < NFSV42_CBNOPS; i++) 673 nfsstatsov1.cbrpccnt[i] = 674 nfsstatsv1.cbrpccnt[i]; 675 nfsstatsov1.clopenowners = 676 nfsstatsv1.clopenowners; 677 nfsstatsov1.clopens = 678 nfsstatsv1.clopens; 679 nfsstatsov1.cllockowners = 680 nfsstatsv1.cllockowners; 681 nfsstatsov1.cllocks = 682 nfsstatsv1.cllocks; 683 nfsstatsov1.cldelegates = 684 nfsstatsv1.cldelegates; 685 nfsstatsov1.cllocalopenowners = 686 nfsstatsv1.cllocalopenowners; 687 nfsstatsov1.cllocalopens = 688 nfsstatsv1.cllocalopens; 689 nfsstatsov1.cllocallockowners = 690 nfsstatsv1.cllocallockowners; 691 nfsstatsov1.cllocallocks = 692 nfsstatsv1.cllocallocks; 693 nfsstatsov1.srvstartcnt = 694 nfsstatsv1.srvstartcnt; 695 nfsstatsov1.srvdonecnt = 696 nfsstatsv1.srvdonecnt; 697 for (i = NFSV42_NOPS, 698 j = NFSV42_PURENOPS; 699 i < NFSV42_NOPS + NFSV4OP_FAKENOPS; 700 i++, j++) { 701 nfsstatsov1.srvbytes[j] = 702 nfsstatsv1.srvbytes[i]; 703 nfsstatsov1.srvops[j] = 704 nfsstatsv1.srvops[i]; 705 nfsstatsov1.srvduration[j] = 706 nfsstatsv1.srvduration[i]; 707 } 708 nfsstatsov1.busyfrom = 709 nfsstatsv1.busyfrom; 710 nfsstatsov1.busyfrom = 711 nfsstatsv1.busyfrom; 712 error = copyout(&nfsstatsov1, uap->argp, 713 sizeof(nfsstatsov1)); 714 } else if (nfsstatver.vers != NFSSTATS_V1) 715 error = EPERM; 716 else 717 error = copyout(&nfsstatsv1, uap->argp, 718 sizeof(nfsstatsv1)); 719 } 720 } 721 if (error == 0) { 722 if ((uap->flag & NFSSVC_ZEROCLTSTATS) != 0) { 723 nfsstatsv1.attrcache_hits = 0; 724 nfsstatsv1.attrcache_misses = 0; 725 nfsstatsv1.lookupcache_hits = 0; 726 nfsstatsv1.lookupcache_misses = 0; 727 nfsstatsv1.direofcache_hits = 0; 728 nfsstatsv1.direofcache_misses = 0; 729 nfsstatsv1.accesscache_hits = 0; 730 nfsstatsv1.accesscache_misses = 0; 731 nfsstatsv1.biocache_reads = 0; 732 nfsstatsv1.read_bios = 0; 733 nfsstatsv1.read_physios = 0; 734 nfsstatsv1.biocache_writes = 0; 735 nfsstatsv1.write_bios = 0; 736 nfsstatsv1.write_physios = 0; 737 nfsstatsv1.biocache_readlinks = 0; 738 nfsstatsv1.readlink_bios = 0; 739 nfsstatsv1.biocache_readdirs = 0; 740 nfsstatsv1.readdir_bios = 0; 741 nfsstatsv1.rpcretries = 0; 742 nfsstatsv1.rpcrequests = 0; 743 nfsstatsv1.rpctimeouts = 0; 744 nfsstatsv1.rpcunexpected = 0; 745 nfsstatsv1.rpcinvalid = 0; 746 bzero(nfsstatsv1.rpccnt, 747 sizeof(nfsstatsv1.rpccnt)); 748 } 749 if ((uap->flag & NFSSVC_ZEROSRVSTATS) != 0) { 750 nfsstatsv1.srvcache_inproghits = 0; 751 nfsstatsv1.srvcache_nonidemdonehits = 0; 752 nfsstatsv1.srvcache_misses = 0; 753 nfsstatsv1.srvcache_tcppeak = 0; 754 bzero(nfsstatsv1.srvrpccnt, 755 sizeof(nfsstatsv1.srvrpccnt)); 756 bzero(nfsstatsv1.cbrpccnt, 757 sizeof(nfsstatsv1.cbrpccnt)); 758 } 759 } 760 goto out; 761 } else if (uap->flag & NFSSVC_NFSUSERDPORT) { 762 u_short sockport; 763 struct nfsuserd_args nargs; 764 765 if ((uap->flag & NFSSVC_NEWSTRUCT) == 0) { 766 error = copyin(uap->argp, (caddr_t)&sockport, 767 sizeof (u_short)); 768 if (error == 0) { 769 nargs.nuserd_family = AF_INET; 770 nargs.nuserd_port = sockport; 771 } 772 } else { 773 /* 774 * New nfsuserd_args structure, which indicates 775 * which IP version to use along with the port#. 776 */ 777 error = copyin(uap->argp, &nargs, sizeof(nargs)); 778 } 779 if (!error) 780 error = nfsrv_nfsuserdport(&nargs, p); 781 } else if (uap->flag & NFSSVC_NFSUSERDDELPORT) { 782 nfsrv_nfsuserddelport(); 783 error = 0; 784 } 785 786 out: 787 NFSEXITCODE(error); 788 return (error); 789 } 790 791 /* 792 * called by all three modevent routines, so that it gets things 793 * initialized soon enough. 794 */ 795 void 796 newnfs_portinit(void) 797 { 798 static int inited = 0; 799 800 if (inited) 801 return; 802 inited = 1; 803 /* Initialize SMP locks used by both client and server. */ 804 mtx_init(&newnfsd_mtx, "newnfsd_mtx", NULL, MTX_DEF); 805 mtx_init(&nfs_state_mutex, "nfs_state_mutex", NULL, MTX_DEF); 806 mtx_init(&nfs_clstate_mutex, "nfs_clstate_mutex", NULL, MTX_DEF); 807 } 808 809 /* 810 * Determine if the file system supports NFSv4 ACLs. 811 * Return 1 if it does, 0 otherwise. 812 */ 813 int 814 nfs_supportsnfsv4acls(struct vnode *vp) 815 { 816 int error; 817 long retval; 818 819 ASSERT_VOP_LOCKED(vp, "nfs supports nfsv4acls"); 820 821 if (nfsrv_useacl == 0) 822 return (0); 823 error = VOP_PATHCONF(vp, _PC_ACL_NFS4, &retval); 824 if (error == 0 && retval != 0) 825 return (1); 826 return (0); 827 } 828 829 /* 830 * These are the first fields of all the context structures passed into 831 * nfs_pnfsio(). 832 */ 833 struct pnfsio { 834 int done; 835 int inprog; 836 struct task tsk; 837 }; 838 839 /* 840 * Do a mirror I/O on a pNFS thread. 841 */ 842 int 843 nfs_pnfsio(task_fn_t *func, void *context) 844 { 845 struct pnfsio *pio; 846 int ret; 847 static struct taskqueue *pnfsioq = NULL; 848 849 pio = (struct pnfsio *)context; 850 if (pnfsioq == NULL) { 851 if (nfs_pnfsiothreads == 0) 852 return (EPERM); 853 if (nfs_pnfsiothreads < 0) 854 nfs_pnfsiothreads = mp_ncpus * 4; 855 pnfsioq = taskqueue_create("pnfsioq", M_WAITOK, 856 taskqueue_thread_enqueue, &pnfsioq); 857 if (pnfsioq == NULL) 858 return (ENOMEM); 859 ret = taskqueue_start_threads(&pnfsioq, nfs_pnfsiothreads, 860 0, "pnfsiot"); 861 if (ret != 0) { 862 taskqueue_free(pnfsioq); 863 pnfsioq = NULL; 864 return (ret); 865 } 866 } 867 pio->inprog = 1; 868 TASK_INIT(&pio->tsk, 0, func, context); 869 ret = taskqueue_enqueue(pnfsioq, &pio->tsk); 870 if (ret != 0) 871 pio->inprog = 0; 872 return (ret); 873 } 874 875 extern int (*nfsd_call_nfscommon)(struct thread *, struct nfssvc_args *); 876 877 /* 878 * Called once to initialize data structures... 879 */ 880 static int 881 nfscommon_modevent(module_t mod, int type, void *data) 882 { 883 int error = 0; 884 static int loaded = 0; 885 886 switch (type) { 887 case MOD_LOAD: 888 if (loaded) 889 goto out; 890 newnfs_portinit(); 891 mtx_init(&nfs_nameid_mutex, "nfs_nameid_mutex", NULL, MTX_DEF); 892 mtx_init(&nfs_sockl_mutex, "nfs_sockl_mutex", NULL, MTX_DEF); 893 mtx_init(&nfs_slock_mutex, "nfs_slock_mutex", NULL, MTX_DEF); 894 mtx_init(&nfs_req_mutex, "nfs_req_mutex", NULL, MTX_DEF); 895 mtx_init(&nfsrv_nfsuserdsock.nr_mtx, "nfsuserd", NULL, 896 MTX_DEF); 897 mtx_init(&nfsrv_dslock_mtx, "nfs4ds", NULL, MTX_DEF); 898 TAILQ_INIT(&nfsrv_devidhead); 899 callout_init(&newnfsd_callout, 1); 900 newnfs_init(); 901 nfsd_call_nfscommon = nfssvc_nfscommon; 902 loaded = 1; 903 break; 904 905 case MOD_UNLOAD: 906 if (newnfs_numnfsd != 0 || nfsrv_nfsuserd != NOTRUNNING || 907 nfs_numnfscbd != 0) { 908 error = EBUSY; 909 break; 910 } 911 912 nfsd_call_nfscommon = NULL; 913 callout_drain(&newnfsd_callout); 914 /* Clean out the name<-->id cache. */ 915 nfsrv_cleanusergroup(); 916 /* and get rid of the mutexes */ 917 mtx_destroy(&nfs_nameid_mutex); 918 mtx_destroy(&newnfsd_mtx); 919 mtx_destroy(&nfs_state_mutex); 920 mtx_destroy(&nfs_clstate_mutex); 921 mtx_destroy(&nfs_sockl_mutex); 922 mtx_destroy(&nfs_slock_mutex); 923 mtx_destroy(&nfs_req_mutex); 924 mtx_destroy(&nfsrv_nfsuserdsock.nr_mtx); 925 mtx_destroy(&nfsrv_dslock_mtx); 926 loaded = 0; 927 break; 928 default: 929 error = EOPNOTSUPP; 930 break; 931 } 932 933 out: 934 NFSEXITCODE(error); 935 return error; 936 } 937 static moduledata_t nfscommon_mod = { 938 "nfscommon", 939 nfscommon_modevent, 940 NULL, 941 }; 942 DECLARE_MODULE(nfscommon, nfscommon_mod, SI_SUB_VFS, SI_ORDER_ANY); 943 944 /* So that loader and kldload(2) can find us, wherever we are.. */ 945 MODULE_VERSION(nfscommon, 1); 946 MODULE_DEPEND(nfscommon, nfssvc, 1, 1, 1); 947 MODULE_DEPEND(nfscommon, krpc, 1, 1, 1); 948