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 80 int nfs_pnfsio(task_fn_t *, void *); 81 82 static int nfs_realign_test; 83 static int nfs_realign_count; 84 static struct ext_nfsstats oldnfsstats; 85 static struct nfsstatsov1 nfsstatsov1; 86 87 SYSCTL_NODE(_vfs, OID_AUTO, nfs, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 88 "NFS filesystem"); 89 SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_test, CTLFLAG_RW, &nfs_realign_test, 90 0, "Number of realign tests done"); 91 SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_count, CTLFLAG_RW, &nfs_realign_count, 92 0, "Number of mbuf realignments done"); 93 SYSCTL_STRING(_vfs_nfs, OID_AUTO, callback_addr, CTLFLAG_RW, 94 nfsv4_callbackaddr, sizeof(nfsv4_callbackaddr), 95 "NFSv4 callback addr for server to use"); 96 SYSCTL_INT(_vfs_nfs, OID_AUTO, debuglevel, CTLFLAG_RW, &nfscl_debuglevel, 97 0, "Debug level for NFS client"); 98 SYSCTL_INT(_vfs_nfs, OID_AUTO, userhashsize, CTLFLAG_RDTUN, &nfsrv_lughashsize, 99 0, "Size of hash tables for uid/name mapping"); 100 int nfs_pnfsiothreads = -1; 101 SYSCTL_INT(_vfs_nfs, OID_AUTO, pnfsiothreads, CTLFLAG_RW, &nfs_pnfsiothreads, 102 0, "Number of pNFS mirror I/O threads"); 103 104 /* 105 * Defines for malloc 106 * (Here for FreeBSD, since they allocate storage.) 107 */ 108 MALLOC_DEFINE(M_NEWNFSRVCACHE, "NFSD srvcache", "NFSD Server Request Cache"); 109 MALLOC_DEFINE(M_NEWNFSDCLIENT, "NFSD V4client", "NFSD V4 Client Id"); 110 MALLOC_DEFINE(M_NEWNFSDSTATE, "NFSD V4state", 111 "NFSD V4 State (Openowner, Open, Lockowner, Delegation"); 112 MALLOC_DEFINE(M_NEWNFSDLOCK, "NFSD V4lock", "NFSD V4 byte range lock"); 113 MALLOC_DEFINE(M_NEWNFSDLOCKFILE, "NFSD lckfile", "NFSD Open/Lock file"); 114 MALLOC_DEFINE(M_NEWNFSSTRING, "NFSD string", "NFSD V4 long string"); 115 MALLOC_DEFINE(M_NEWNFSUSERGROUP, "NFSD usrgroup", "NFSD V4 User/group map"); 116 MALLOC_DEFINE(M_NEWNFSDREQ, "NFS req", "NFS request header"); 117 MALLOC_DEFINE(M_NEWNFSFH, "NFS fh", "NFS file handle"); 118 MALLOC_DEFINE(M_NEWNFSCLOWNER, "NFSCL owner", "NFSCL Open Owner"); 119 MALLOC_DEFINE(M_NEWNFSCLOPEN, "NFSCL open", "NFSCL Open"); 120 MALLOC_DEFINE(M_NEWNFSCLDELEG, "NFSCL deleg", "NFSCL Delegation"); 121 MALLOC_DEFINE(M_NEWNFSCLCLIENT, "NFSCL client", "NFSCL Client"); 122 MALLOC_DEFINE(M_NEWNFSCLLOCKOWNER, "NFSCL lckown", "NFSCL Lock Owner"); 123 MALLOC_DEFINE(M_NEWNFSCLLOCK, "NFSCL lck", "NFSCL Lock"); 124 MALLOC_DEFINE(M_NEWNFSV4NODE, "NEWNFSnode", "NFS vnode"); 125 MALLOC_DEFINE(M_NEWNFSDIRECTIO, "NEWdirectio", "NFS Direct IO buffer"); 126 MALLOC_DEFINE(M_NEWNFSDIROFF, "NFSCL diroffdiroff", 127 "NFS directory offset data"); 128 MALLOC_DEFINE(M_NEWNFSDROLLBACK, "NFSD rollback", 129 "NFS local lock rollback"); 130 MALLOC_DEFINE(M_NEWNFSLAYOUT, "NFSCL layout", "NFSv4.1 Layout"); 131 MALLOC_DEFINE(M_NEWNFSFLAYOUT, "NFSCL flayout", "NFSv4.1 File Layout"); 132 MALLOC_DEFINE(M_NEWNFSDEVINFO, "NFSCL devinfo", "NFSv4.1 Device Info"); 133 MALLOC_DEFINE(M_NEWNFSSOCKREQ, "NFSCL sockreq", "NFS Sock Req"); 134 MALLOC_DEFINE(M_NEWNFSCLDS, "NFSCL session", "NFSv4.1 Session"); 135 MALLOC_DEFINE(M_NEWNFSLAYRECALL, "NFSCL layrecall", "NFSv4.1 Layout Recall"); 136 MALLOC_DEFINE(M_NEWNFSDSESSION, "NFSD session", "NFSD Session for a client"); 137 138 /* 139 * Definition of mutex locks. 140 * newnfsd_mtx is used in nfsrvd_nfsd() to protect the nfs socket list 141 * and assorted other nfsd structures. 142 */ 143 struct mtx newnfsd_mtx; 144 struct mtx nfs_sockl_mutex; 145 struct mtx nfs_state_mutex; 146 struct mtx nfs_nameid_mutex; 147 struct mtx nfs_req_mutex; 148 struct mtx nfs_slock_mutex; 149 struct mtx nfs_clstate_mutex; 150 151 /* local functions */ 152 static int nfssvc_call(struct thread *, struct nfssvc_args *, struct ucred *); 153 154 #ifdef __NO_STRICT_ALIGNMENT 155 /* 156 * These architectures don't need re-alignment, so just return. 157 */ 158 int 159 newnfs_realign(struct mbuf **pm, int how) 160 { 161 162 return (0); 163 } 164 #else /* !__NO_STRICT_ALIGNMENT */ 165 /* 166 * newnfs_realign: 167 * 168 * Check for badly aligned mbuf data and realign by copying the unaligned 169 * portion of the data into a new mbuf chain and freeing the portions 170 * of the old chain that were replaced. 171 * 172 * We cannot simply realign the data within the existing mbuf chain 173 * because the underlying buffers may contain other rpc commands and 174 * we cannot afford to overwrite them. 175 * 176 * We would prefer to avoid this situation entirely. The situation does 177 * not occur with NFS/UDP and is supposed to only occasionally occur 178 * with TCP. Use vfs.nfs.realign_count and realign_test to check this. 179 * 180 */ 181 int 182 newnfs_realign(struct mbuf **pm, int how) 183 { 184 struct mbuf *m, *n; 185 int off, space; 186 187 ++nfs_realign_test; 188 while ((m = *pm) != NULL) { 189 if ((m->m_len & 0x3) || (mtod(m, intptr_t) & 0x3)) { 190 /* 191 * NB: we can't depend on m_pkthdr.len to help us 192 * decide what to do here. May not be worth doing 193 * the m_length calculation as m_copyback will 194 * expand the mbuf chain below as needed. 195 */ 196 space = m_length(m, NULL); 197 if (space >= MINCLSIZE) { 198 /* NB: m_copyback handles space > MCLBYTES */ 199 n = m_getcl(how, MT_DATA, 0); 200 } else 201 n = m_get(how, MT_DATA); 202 if (n == NULL) 203 return (ENOMEM); 204 /* 205 * Align the remainder of the mbuf chain. 206 */ 207 n->m_len = 0; 208 off = 0; 209 while (m != NULL) { 210 m_copyback(n, off, m->m_len, mtod(m, caddr_t)); 211 off += m->m_len; 212 m = m->m_next; 213 } 214 m_freem(*pm); 215 *pm = n; 216 ++nfs_realign_count; 217 break; 218 } 219 pm = &m->m_next; 220 } 221 222 return (0); 223 } 224 #endif /* __NO_STRICT_ALIGNMENT */ 225 226 #ifdef notdef 227 static void 228 nfsrv_object_create(struct vnode *vp, struct thread *td) 229 { 230 231 if (vp == NULL || vp->v_type != VREG) 232 return; 233 (void) vfs_object_create(vp, td, td->td_ucred); 234 } 235 #endif 236 237 /* 238 * Look up a file name. Basically just initialize stuff and call namei(). 239 */ 240 int 241 nfsrv_lookupfilename(struct nameidata *ndp, char *fname, NFSPROC_T *p) 242 { 243 int error; 244 245 NDINIT(ndp, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, fname, 246 p); 247 error = namei(ndp); 248 if (!error) { 249 NDFREE(ndp, NDF_ONLY_PNBUF); 250 } 251 return (error); 252 } 253 254 /* 255 * Copy NFS uid, gids to the cred structure. 256 */ 257 void 258 newnfs_copycred(struct nfscred *nfscr, struct ucred *cr) 259 { 260 261 KASSERT(nfscr->nfsc_ngroups >= 0, 262 ("newnfs_copycred: negative nfsc_ngroups")); 263 cr->cr_uid = nfscr->nfsc_uid; 264 crsetgroups(cr, nfscr->nfsc_ngroups, nfscr->nfsc_groups); 265 } 266 267 /* 268 * Map args from nfsmsleep() to msleep(). 269 */ 270 int 271 nfsmsleep(void *chan, void *mutex, int prio, const char *wmesg, 272 struct timespec *ts) 273 { 274 u_int64_t nsecval; 275 int error, timeo; 276 277 if (ts) { 278 timeo = hz * ts->tv_sec; 279 nsecval = (u_int64_t)ts->tv_nsec; 280 nsecval = ((nsecval * ((u_int64_t)hz)) + 500000000) / 281 1000000000; 282 timeo += (int)nsecval; 283 } else { 284 timeo = 0; 285 } 286 error = msleep(chan, (struct mtx *)mutex, prio, wmesg, timeo); 287 return (error); 288 } 289 290 /* 291 * Get the file system info for the server. For now, just assume FFS. 292 */ 293 void 294 nfsvno_getfs(struct nfsfsinfo *sip, int isdgram) 295 { 296 int pref; 297 298 /* 299 * XXX 300 * There should be file system VFS OP(s) to get this information. 301 * For now, assume ufs. 302 */ 303 if (isdgram) 304 pref = NFS_MAXDGRAMDATA; 305 else 306 pref = NFS_SRVMAXIO; 307 sip->fs_rtmax = NFS_SRVMAXIO; 308 sip->fs_rtpref = pref; 309 sip->fs_rtmult = NFS_FABLKSIZE; 310 sip->fs_wtmax = NFS_SRVMAXIO; 311 sip->fs_wtpref = pref; 312 sip->fs_wtmult = NFS_FABLKSIZE; 313 sip->fs_dtpref = pref; 314 sip->fs_maxfilesize = 0xffffffffffffffffull; 315 sip->fs_timedelta.tv_sec = 0; 316 sip->fs_timedelta.tv_nsec = 1; 317 sip->fs_properties = (NFSV3FSINFO_LINK | 318 NFSV3FSINFO_SYMLINK | NFSV3FSINFO_HOMOGENEOUS | 319 NFSV3FSINFO_CANSETTIME); 320 } 321 322 /* 323 * Do the pathconf vnode op. 324 */ 325 int 326 nfsvno_pathconf(struct vnode *vp, int flag, long *retf, 327 struct ucred *cred, struct thread *p) 328 { 329 int error; 330 331 error = VOP_PATHCONF(vp, flag, retf); 332 if (error == EOPNOTSUPP || error == EINVAL) { 333 /* 334 * Some file systems return EINVAL for name arguments not 335 * supported and some return EOPNOTSUPP for this case. 336 * So the NFSv3 Pathconf RPC doesn't fail for these cases, 337 * just fake them. 338 */ 339 switch (flag) { 340 case _PC_LINK_MAX: 341 *retf = NFS_LINK_MAX; 342 break; 343 case _PC_NAME_MAX: 344 *retf = NAME_MAX; 345 break; 346 case _PC_CHOWN_RESTRICTED: 347 *retf = 1; 348 break; 349 case _PC_NO_TRUNC: 350 *retf = 1; 351 break; 352 default: 353 /* 354 * Only happens if a _PC_xxx is added to the server, 355 * but this isn't updated. 356 */ 357 *retf = 0; 358 printf("nfsrvd pathconf flag=%d not supp\n", flag); 359 } 360 error = 0; 361 } 362 NFSEXITCODE(error); 363 return (error); 364 } 365 366 /* Fake nfsrv_atroot. Just return 0 */ 367 int 368 nfsrv_atroot(struct vnode *vp, uint64_t *retp) 369 { 370 371 return (0); 372 } 373 374 /* 375 * Set the credentials to refer to root. 376 * If only the various BSDen could agree on whether cr_gid is a separate 377 * field or cr_groups[0]... 378 */ 379 void 380 newnfs_setroot(struct ucred *cred) 381 { 382 383 cred->cr_uid = 0; 384 cred->cr_groups[0] = 0; 385 cred->cr_ngroups = 1; 386 } 387 388 /* 389 * Get the client credential. Used for Renew and recovery. 390 */ 391 struct ucred * 392 newnfs_getcred(void) 393 { 394 struct ucred *cred; 395 struct thread *td = curthread; 396 397 cred = crdup(td->td_ucred); 398 newnfs_setroot(cred); 399 return (cred); 400 } 401 402 /* 403 * Nfs timer routine 404 * Call the nfsd's timer function once/sec. 405 */ 406 void 407 newnfs_timer(void *arg) 408 { 409 static time_t lasttime = 0; 410 /* 411 * Call the server timer, if set up. 412 * The argument indicates if it is the next second and therefore 413 * leases should be checked. 414 */ 415 if (lasttime != NFSD_MONOSEC) { 416 lasttime = NFSD_MONOSEC; 417 if (nfsd_call_servertimer != NULL) 418 (*nfsd_call_servertimer)(); 419 } 420 callout_reset(&newnfsd_callout, nfscl_ticks, newnfs_timer, NULL); 421 } 422 423 /* 424 * Sleep for a short period of time unless errval == NFSERR_GRACE, where 425 * the sleep should be for 5 seconds. 426 * Since lbolt doesn't exist in FreeBSD-CURRENT, just use a timeout on 427 * an event that never gets a wakeup. Only return EINTR or 0. 428 */ 429 int 430 nfs_catnap(int prio, int errval, const char *wmesg) 431 { 432 static int non_event; 433 int ret; 434 435 if (errval == NFSERR_GRACE) 436 ret = tsleep(&non_event, prio, wmesg, 5 * hz); 437 else 438 ret = tsleep(&non_event, prio, wmesg, 1); 439 if (ret != EINTR) 440 ret = 0; 441 return (ret); 442 } 443 444 /* 445 * Get referral. For now, just fail. 446 */ 447 struct nfsreferral * 448 nfsv4root_getreferral(struct vnode *vp, struct vnode *dvp, u_int32_t fileno) 449 { 450 451 return (NULL); 452 } 453 454 static int 455 nfssvc_nfscommon(struct thread *td, struct nfssvc_args *uap) 456 { 457 int error; 458 459 error = nfssvc_call(td, uap, td->td_ucred); 460 NFSEXITCODE(error); 461 return (error); 462 } 463 464 static int 465 nfssvc_call(struct thread *p, struct nfssvc_args *uap, struct ucred *cred) 466 { 467 int error = EINVAL, i, j; 468 struct nfsd_idargs nid; 469 struct nfsd_oidargs onid; 470 struct { 471 int vers; /* Just the first field of nfsstats. */ 472 } nfsstatver; 473 474 if (uap->flag & NFSSVC_IDNAME) { 475 if ((uap->flag & NFSSVC_NEWSTRUCT) != 0) 476 error = copyin(uap->argp, &nid, sizeof(nid)); 477 else { 478 error = copyin(uap->argp, &onid, sizeof(onid)); 479 if (error == 0) { 480 nid.nid_flag = onid.nid_flag; 481 nid.nid_uid = onid.nid_uid; 482 nid.nid_gid = onid.nid_gid; 483 nid.nid_usermax = onid.nid_usermax; 484 nid.nid_usertimeout = onid.nid_usertimeout; 485 nid.nid_name = onid.nid_name; 486 nid.nid_namelen = onid.nid_namelen; 487 nid.nid_ngroup = 0; 488 nid.nid_grps = NULL; 489 } 490 } 491 if (error) 492 goto out; 493 error = nfssvc_idname(&nid); 494 goto out; 495 } else if (uap->flag & NFSSVC_GETSTATS) { 496 if ((uap->flag & NFSSVC_NEWSTRUCT) == 0) { 497 /* Copy fields to the old ext_nfsstat structure. */ 498 oldnfsstats.attrcache_hits = 499 nfsstatsv1.attrcache_hits; 500 oldnfsstats.attrcache_misses = 501 nfsstatsv1.attrcache_misses; 502 oldnfsstats.lookupcache_hits = 503 nfsstatsv1.lookupcache_hits; 504 oldnfsstats.lookupcache_misses = 505 nfsstatsv1.lookupcache_misses; 506 oldnfsstats.direofcache_hits = 507 nfsstatsv1.direofcache_hits; 508 oldnfsstats.direofcache_misses = 509 nfsstatsv1.direofcache_misses; 510 oldnfsstats.accesscache_hits = 511 nfsstatsv1.accesscache_hits; 512 oldnfsstats.accesscache_misses = 513 nfsstatsv1.accesscache_misses; 514 oldnfsstats.biocache_reads = 515 nfsstatsv1.biocache_reads; 516 oldnfsstats.read_bios = 517 nfsstatsv1.read_bios; 518 oldnfsstats.read_physios = 519 nfsstatsv1.read_physios; 520 oldnfsstats.biocache_writes = 521 nfsstatsv1.biocache_writes; 522 oldnfsstats.write_bios = 523 nfsstatsv1.write_bios; 524 oldnfsstats.write_physios = 525 nfsstatsv1.write_physios; 526 oldnfsstats.biocache_readlinks = 527 nfsstatsv1.biocache_readlinks; 528 oldnfsstats.readlink_bios = 529 nfsstatsv1.readlink_bios; 530 oldnfsstats.biocache_readdirs = 531 nfsstatsv1.biocache_readdirs; 532 oldnfsstats.readdir_bios = 533 nfsstatsv1.readdir_bios; 534 for (i = 0; i < NFSV4_NPROCS; i++) 535 oldnfsstats.rpccnt[i] = nfsstatsv1.rpccnt[i]; 536 oldnfsstats.rpcretries = nfsstatsv1.rpcretries; 537 for (i = 0; i < NFSV4OP_NOPS; i++) 538 oldnfsstats.srvrpccnt[i] = 539 nfsstatsv1.srvrpccnt[i]; 540 for (i = NFSV42_NOPS, j = NFSV4OP_NOPS; 541 i < NFSV42_NOPS + NFSV4OP_FAKENOPS; i++, j++) 542 oldnfsstats.srvrpccnt[j] = 543 nfsstatsv1.srvrpccnt[i]; 544 oldnfsstats.srvrpc_errs = nfsstatsv1.srvrpc_errs; 545 oldnfsstats.srv_errs = nfsstatsv1.srv_errs; 546 oldnfsstats.rpcrequests = nfsstatsv1.rpcrequests; 547 oldnfsstats.rpctimeouts = nfsstatsv1.rpctimeouts; 548 oldnfsstats.rpcunexpected = nfsstatsv1.rpcunexpected; 549 oldnfsstats.rpcinvalid = nfsstatsv1.rpcinvalid; 550 oldnfsstats.srvcache_inproghits = 551 nfsstatsv1.srvcache_inproghits; 552 oldnfsstats.srvcache_idemdonehits = 553 nfsstatsv1.srvcache_idemdonehits; 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.srvrpc_errs = 640 nfsstatsv1.srvrpc_errs; 641 nfsstatsov1.srv_errs = 642 nfsstatsv1.srv_errs; 643 nfsstatsov1.rpcrequests = 644 nfsstatsv1.rpcrequests; 645 nfsstatsov1.rpctimeouts = 646 nfsstatsv1.rpctimeouts; 647 nfsstatsov1.rpcunexpected = 648 nfsstatsv1.rpcunexpected; 649 nfsstatsov1.rpcinvalid = 650 nfsstatsv1.rpcinvalid; 651 nfsstatsov1.srvcache_inproghits = 652 nfsstatsv1.srvcache_inproghits; 653 nfsstatsov1.srvcache_idemdonehits = 654 nfsstatsv1.srvcache_idemdonehits; 655 nfsstatsov1.srvcache_nonidemdonehits = 656 nfsstatsv1.srvcache_nonidemdonehits; 657 nfsstatsov1.srvcache_misses = 658 nfsstatsv1.srvcache_misses; 659 nfsstatsov1.srvcache_tcppeak = 660 nfsstatsv1.srvcache_tcppeak; 661 nfsstatsov1.srvcache_size = 662 nfsstatsv1.srvcache_size; 663 nfsstatsov1.srvclients = 664 nfsstatsv1.srvclients; 665 nfsstatsov1.srvopenowners = 666 nfsstatsv1.srvopenowners; 667 nfsstatsov1.srvopens = 668 nfsstatsv1.srvopens; 669 nfsstatsov1.srvlockowners = 670 nfsstatsv1.srvlockowners; 671 nfsstatsov1.srvlocks = 672 nfsstatsv1.srvlocks; 673 nfsstatsov1.srvdelegates = 674 nfsstatsv1.srvdelegates; 675 for (i = 0; i < NFSV42_CBNOPS; i++) 676 nfsstatsov1.cbrpccnt[i] = 677 nfsstatsv1.cbrpccnt[i]; 678 nfsstatsov1.clopenowners = 679 nfsstatsv1.clopenowners; 680 nfsstatsov1.clopens = 681 nfsstatsv1.clopens; 682 nfsstatsov1.cllockowners = 683 nfsstatsv1.cllockowners; 684 nfsstatsov1.cllocks = 685 nfsstatsv1.cllocks; 686 nfsstatsov1.cldelegates = 687 nfsstatsv1.cldelegates; 688 nfsstatsov1.cllocalopenowners = 689 nfsstatsv1.cllocalopenowners; 690 nfsstatsov1.cllocalopens = 691 nfsstatsv1.cllocalopens; 692 nfsstatsov1.cllocallockowners = 693 nfsstatsv1.cllocallockowners; 694 nfsstatsov1.cllocallocks = 695 nfsstatsv1.cllocallocks; 696 nfsstatsov1.srvstartcnt = 697 nfsstatsv1.srvstartcnt; 698 nfsstatsov1.srvdonecnt = 699 nfsstatsv1.srvdonecnt; 700 for (i = NFSV42_NOPS, 701 j = NFSV42_PURENOPS; 702 i < NFSV42_NOPS + NFSV4OP_FAKENOPS; 703 i++, j++) { 704 nfsstatsov1.srvbytes[j] = 705 nfsstatsv1.srvbytes[i]; 706 nfsstatsov1.srvops[j] = 707 nfsstatsv1.srvops[i]; 708 nfsstatsov1.srvduration[j] = 709 nfsstatsv1.srvduration[i]; 710 } 711 nfsstatsov1.busyfrom = 712 nfsstatsv1.busyfrom; 713 nfsstatsov1.busyfrom = 714 nfsstatsv1.busyfrom; 715 error = copyout(&nfsstatsov1, uap->argp, 716 sizeof(nfsstatsov1)); 717 } else if (nfsstatver.vers != NFSSTATS_V1) 718 error = EPERM; 719 else 720 error = copyout(&nfsstatsv1, uap->argp, 721 sizeof(nfsstatsv1)); 722 } 723 } 724 if (error == 0) { 725 if ((uap->flag & NFSSVC_ZEROCLTSTATS) != 0) { 726 nfsstatsv1.attrcache_hits = 0; 727 nfsstatsv1.attrcache_misses = 0; 728 nfsstatsv1.lookupcache_hits = 0; 729 nfsstatsv1.lookupcache_misses = 0; 730 nfsstatsv1.direofcache_hits = 0; 731 nfsstatsv1.direofcache_misses = 0; 732 nfsstatsv1.accesscache_hits = 0; 733 nfsstatsv1.accesscache_misses = 0; 734 nfsstatsv1.biocache_reads = 0; 735 nfsstatsv1.read_bios = 0; 736 nfsstatsv1.read_physios = 0; 737 nfsstatsv1.biocache_writes = 0; 738 nfsstatsv1.write_bios = 0; 739 nfsstatsv1.write_physios = 0; 740 nfsstatsv1.biocache_readlinks = 0; 741 nfsstatsv1.readlink_bios = 0; 742 nfsstatsv1.biocache_readdirs = 0; 743 nfsstatsv1.readdir_bios = 0; 744 nfsstatsv1.rpcretries = 0; 745 nfsstatsv1.rpcrequests = 0; 746 nfsstatsv1.rpctimeouts = 0; 747 nfsstatsv1.rpcunexpected = 0; 748 nfsstatsv1.rpcinvalid = 0; 749 bzero(nfsstatsv1.rpccnt, 750 sizeof(nfsstatsv1.rpccnt)); 751 } 752 if ((uap->flag & NFSSVC_ZEROSRVSTATS) != 0) { 753 nfsstatsv1.srvrpc_errs = 0; 754 nfsstatsv1.srv_errs = 0; 755 nfsstatsv1.srvcache_inproghits = 0; 756 nfsstatsv1.srvcache_idemdonehits = 0; 757 nfsstatsv1.srvcache_nonidemdonehits = 0; 758 nfsstatsv1.srvcache_misses = 0; 759 nfsstatsv1.srvcache_tcppeak = 0; 760 bzero(nfsstatsv1.srvrpccnt, 761 sizeof(nfsstatsv1.srvrpccnt)); 762 bzero(nfsstatsv1.cbrpccnt, 763 sizeof(nfsstatsv1.cbrpccnt)); 764 } 765 } 766 goto out; 767 } else if (uap->flag & NFSSVC_NFSUSERDPORT) { 768 u_short sockport; 769 struct nfsuserd_args nargs; 770 771 if ((uap->flag & NFSSVC_NEWSTRUCT) == 0) { 772 error = copyin(uap->argp, (caddr_t)&sockport, 773 sizeof (u_short)); 774 if (error == 0) { 775 nargs.nuserd_family = AF_INET; 776 nargs.nuserd_port = sockport; 777 } 778 } else { 779 /* 780 * New nfsuserd_args structure, which indicates 781 * which IP version to use along with the port#. 782 */ 783 error = copyin(uap->argp, &nargs, sizeof(nargs)); 784 } 785 if (!error) 786 error = nfsrv_nfsuserdport(&nargs, p); 787 } else if (uap->flag & NFSSVC_NFSUSERDDELPORT) { 788 nfsrv_nfsuserddelport(); 789 error = 0; 790 } 791 792 out: 793 NFSEXITCODE(error); 794 return (error); 795 } 796 797 /* 798 * called by all three modevent routines, so that it gets things 799 * initialized soon enough. 800 */ 801 void 802 newnfs_portinit(void) 803 { 804 static int inited = 0; 805 806 if (inited) 807 return; 808 inited = 1; 809 /* Initialize SMP locks used by both client and server. */ 810 mtx_init(&newnfsd_mtx, "newnfsd_mtx", NULL, MTX_DEF); 811 mtx_init(&nfs_state_mutex, "nfs_state_mutex", NULL, MTX_DEF); 812 mtx_init(&nfs_clstate_mutex, "nfs_clstate_mutex", NULL, MTX_DEF); 813 } 814 815 /* 816 * Determine if the file system supports NFSv4 ACLs. 817 * Return 1 if it does, 0 otherwise. 818 */ 819 int 820 nfs_supportsnfsv4acls(struct vnode *vp) 821 { 822 int error; 823 long retval; 824 825 ASSERT_VOP_LOCKED(vp, "nfs supports nfsv4acls"); 826 827 if (nfsrv_useacl == 0) 828 return (0); 829 error = VOP_PATHCONF(vp, _PC_ACL_NFS4, &retval); 830 if (error == 0 && retval != 0) 831 return (1); 832 return (0); 833 } 834 835 /* 836 * These are the first fields of all the context structures passed into 837 * nfs_pnfsio(). 838 */ 839 struct pnfsio { 840 int done; 841 int inprog; 842 struct task tsk; 843 }; 844 845 /* 846 * Do a mirror I/O on a pNFS thread. 847 */ 848 int 849 nfs_pnfsio(task_fn_t *func, void *context) 850 { 851 struct pnfsio *pio; 852 int ret; 853 static struct taskqueue *pnfsioq = NULL; 854 855 pio = (struct pnfsio *)context; 856 if (pnfsioq == NULL) { 857 if (nfs_pnfsiothreads == 0) 858 return (EPERM); 859 if (nfs_pnfsiothreads < 0) 860 nfs_pnfsiothreads = mp_ncpus * 4; 861 pnfsioq = taskqueue_create("pnfsioq", M_WAITOK, 862 taskqueue_thread_enqueue, &pnfsioq); 863 if (pnfsioq == NULL) 864 return (ENOMEM); 865 ret = taskqueue_start_threads(&pnfsioq, nfs_pnfsiothreads, 866 0, "pnfsiot"); 867 if (ret != 0) { 868 taskqueue_free(pnfsioq); 869 pnfsioq = NULL; 870 return (ret); 871 } 872 } 873 pio->inprog = 1; 874 TASK_INIT(&pio->tsk, 0, func, context); 875 ret = taskqueue_enqueue(pnfsioq, &pio->tsk); 876 if (ret != 0) 877 pio->inprog = 0; 878 return (ret); 879 } 880 881 extern int (*nfsd_call_nfscommon)(struct thread *, struct nfssvc_args *); 882 883 /* 884 * Called once to initialize data structures... 885 */ 886 static int 887 nfscommon_modevent(module_t mod, int type, void *data) 888 { 889 int error = 0; 890 static int loaded = 0; 891 892 switch (type) { 893 case MOD_LOAD: 894 if (loaded) 895 goto out; 896 newnfs_portinit(); 897 mtx_init(&nfs_nameid_mutex, "nfs_nameid_mutex", NULL, MTX_DEF); 898 mtx_init(&nfs_sockl_mutex, "nfs_sockl_mutex", NULL, MTX_DEF); 899 mtx_init(&nfs_slock_mutex, "nfs_slock_mutex", NULL, MTX_DEF); 900 mtx_init(&nfs_req_mutex, "nfs_req_mutex", NULL, MTX_DEF); 901 mtx_init(&nfsrv_nfsuserdsock.nr_mtx, "nfsuserd", NULL, 902 MTX_DEF); 903 mtx_init(&nfsrv_dslock_mtx, "nfs4ds", NULL, MTX_DEF); 904 TAILQ_INIT(&nfsrv_devidhead); 905 callout_init(&newnfsd_callout, 1); 906 newnfs_init(); 907 nfsd_call_nfscommon = nfssvc_nfscommon; 908 loaded = 1; 909 break; 910 911 case MOD_UNLOAD: 912 if (newnfs_numnfsd != 0 || nfsrv_nfsuserd != NOTRUNNING || 913 nfs_numnfscbd != 0) { 914 error = EBUSY; 915 break; 916 } 917 918 nfsd_call_nfscommon = NULL; 919 callout_drain(&newnfsd_callout); 920 /* Clean out the name<-->id cache. */ 921 nfsrv_cleanusergroup(); 922 /* and get rid of the mutexes */ 923 mtx_destroy(&nfs_nameid_mutex); 924 mtx_destroy(&newnfsd_mtx); 925 mtx_destroy(&nfs_state_mutex); 926 mtx_destroy(&nfs_clstate_mutex); 927 mtx_destroy(&nfs_sockl_mutex); 928 mtx_destroy(&nfs_slock_mutex); 929 mtx_destroy(&nfs_req_mutex); 930 mtx_destroy(&nfsrv_nfsuserdsock.nr_mtx); 931 mtx_destroy(&nfsrv_dslock_mtx); 932 loaded = 0; 933 break; 934 default: 935 error = EOPNOTSUPP; 936 break; 937 } 938 939 out: 940 NFSEXITCODE(error); 941 return error; 942 } 943 static moduledata_t nfscommon_mod = { 944 "nfscommon", 945 nfscommon_modevent, 946 NULL, 947 }; 948 DECLARE_MODULE(nfscommon, nfscommon_mod, SI_SUB_VFS, SI_ORDER_ANY); 949 950 /* So that loader and kldload(2) can find us, wherever we are.. */ 951 MODULE_VERSION(nfscommon, 1); 952 MODULE_DEPEND(nfscommon, nfssvc, 1, 1, 1); 953 MODULE_DEPEND(nfscommon, krpc, 1, 1, 1); 954