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 diroff", 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.reserved_0 = 0; 545 oldnfsstats.reserved_1 = 0; 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.reserved_2 = 0; 553 oldnfsstats.srvcache_nonidemdonehits = 554 nfsstatsv1.srvcache_nonidemdonehits; 555 oldnfsstats.srvcache_misses = 556 nfsstatsv1.srvcache_misses; 557 oldnfsstats.srvcache_tcppeak = 558 nfsstatsv1.srvcache_tcppeak; 559 oldnfsstats.srvcache_size = nfsstatsv1.srvcache_size; 560 oldnfsstats.srvclients = nfsstatsv1.srvclients; 561 oldnfsstats.srvopenowners = nfsstatsv1.srvopenowners; 562 oldnfsstats.srvopens = nfsstatsv1.srvopens; 563 oldnfsstats.srvlockowners = nfsstatsv1.srvlockowners; 564 oldnfsstats.srvlocks = nfsstatsv1.srvlocks; 565 oldnfsstats.srvdelegates = nfsstatsv1.srvdelegates; 566 for (i = 0; i < NFSV4OP_CBNOPS; i++) 567 oldnfsstats.cbrpccnt[i] = 568 nfsstatsv1.cbrpccnt[i]; 569 oldnfsstats.clopenowners = nfsstatsv1.clopenowners; 570 oldnfsstats.clopens = nfsstatsv1.clopens; 571 oldnfsstats.cllockowners = nfsstatsv1.cllockowners; 572 oldnfsstats.cllocks = nfsstatsv1.cllocks; 573 oldnfsstats.cldelegates = nfsstatsv1.cldelegates; 574 oldnfsstats.cllocalopenowners = 575 nfsstatsv1.cllocalopenowners; 576 oldnfsstats.cllocalopens = nfsstatsv1.cllocalopens; 577 oldnfsstats.cllocallockowners = 578 nfsstatsv1.cllocallockowners; 579 oldnfsstats.cllocallocks = nfsstatsv1.cllocallocks; 580 error = copyout(&oldnfsstats, uap->argp, 581 sizeof (oldnfsstats)); 582 } else { 583 error = copyin(uap->argp, &nfsstatver, 584 sizeof(nfsstatver)); 585 if (error == 0) { 586 if (nfsstatver.vers == NFSSTATS_OV1) { 587 /* Copy nfsstatsv1 to nfsstatsov1. */ 588 nfsstatsov1.attrcache_hits = 589 nfsstatsv1.attrcache_hits; 590 nfsstatsov1.attrcache_misses = 591 nfsstatsv1.attrcache_misses; 592 nfsstatsov1.lookupcache_hits = 593 nfsstatsv1.lookupcache_hits; 594 nfsstatsov1.lookupcache_misses = 595 nfsstatsv1.lookupcache_misses; 596 nfsstatsov1.direofcache_hits = 597 nfsstatsv1.direofcache_hits; 598 nfsstatsov1.direofcache_misses = 599 nfsstatsv1.direofcache_misses; 600 nfsstatsov1.accesscache_hits = 601 nfsstatsv1.accesscache_hits; 602 nfsstatsov1.accesscache_misses = 603 nfsstatsv1.accesscache_misses; 604 nfsstatsov1.biocache_reads = 605 nfsstatsv1.biocache_reads; 606 nfsstatsov1.read_bios = 607 nfsstatsv1.read_bios; 608 nfsstatsov1.read_physios = 609 nfsstatsv1.read_physios; 610 nfsstatsov1.biocache_writes = 611 nfsstatsv1.biocache_writes; 612 nfsstatsov1.write_bios = 613 nfsstatsv1.write_bios; 614 nfsstatsov1.write_physios = 615 nfsstatsv1.write_physios; 616 nfsstatsov1.biocache_readlinks = 617 nfsstatsv1.biocache_readlinks; 618 nfsstatsov1.readlink_bios = 619 nfsstatsv1.readlink_bios; 620 nfsstatsov1.biocache_readdirs = 621 nfsstatsv1.biocache_readdirs; 622 nfsstatsov1.readdir_bios = 623 nfsstatsv1.readdir_bios; 624 for (i = 0; i < NFSV42_NPROCS; i++) 625 nfsstatsov1.rpccnt[i] = 626 nfsstatsv1.rpccnt[i]; 627 nfsstatsov1.rpcretries = 628 nfsstatsv1.rpcretries; 629 for (i = 0; i < NFSV42_PURENOPS; i++) 630 nfsstatsov1.srvrpccnt[i] = 631 nfsstatsv1.srvrpccnt[i]; 632 for (i = NFSV42_NOPS, 633 j = NFSV42_PURENOPS; 634 i < NFSV42_NOPS + NFSV4OP_FAKENOPS; 635 i++, j++) 636 nfsstatsov1.srvrpccnt[j] = 637 nfsstatsv1.srvrpccnt[i]; 638 nfsstatsov1.reserved_0 = 0; 639 nfsstatsov1.reserved_1 = 0; 640 nfsstatsov1.rpcrequests = 641 nfsstatsv1.rpcrequests; 642 nfsstatsov1.rpctimeouts = 643 nfsstatsv1.rpctimeouts; 644 nfsstatsov1.rpcunexpected = 645 nfsstatsv1.rpcunexpected; 646 nfsstatsov1.rpcinvalid = 647 nfsstatsv1.rpcinvalid; 648 nfsstatsov1.srvcache_inproghits = 649 nfsstatsv1.srvcache_inproghits; 650 nfsstatsov1.reserved_2 = 0; 651 nfsstatsov1.srvcache_nonidemdonehits = 652 nfsstatsv1.srvcache_nonidemdonehits; 653 nfsstatsov1.srvcache_misses = 654 nfsstatsv1.srvcache_misses; 655 nfsstatsov1.srvcache_tcppeak = 656 nfsstatsv1.srvcache_tcppeak; 657 nfsstatsov1.srvcache_size = 658 nfsstatsv1.srvcache_size; 659 nfsstatsov1.srvclients = 660 nfsstatsv1.srvclients; 661 nfsstatsov1.srvopenowners = 662 nfsstatsv1.srvopenowners; 663 nfsstatsov1.srvopens = 664 nfsstatsv1.srvopens; 665 nfsstatsov1.srvlockowners = 666 nfsstatsv1.srvlockowners; 667 nfsstatsov1.srvlocks = 668 nfsstatsv1.srvlocks; 669 nfsstatsov1.srvdelegates = 670 nfsstatsv1.srvdelegates; 671 for (i = 0; i < NFSV42_CBNOPS; i++) 672 nfsstatsov1.cbrpccnt[i] = 673 nfsstatsv1.cbrpccnt[i]; 674 nfsstatsov1.clopenowners = 675 nfsstatsv1.clopenowners; 676 nfsstatsov1.clopens = 677 nfsstatsv1.clopens; 678 nfsstatsov1.cllockowners = 679 nfsstatsv1.cllockowners; 680 nfsstatsov1.cllocks = 681 nfsstatsv1.cllocks; 682 nfsstatsov1.cldelegates = 683 nfsstatsv1.cldelegates; 684 nfsstatsov1.cllocalopenowners = 685 nfsstatsv1.cllocalopenowners; 686 nfsstatsov1.cllocalopens = 687 nfsstatsv1.cllocalopens; 688 nfsstatsov1.cllocallockowners = 689 nfsstatsv1.cllocallockowners; 690 nfsstatsov1.cllocallocks = 691 nfsstatsv1.cllocallocks; 692 nfsstatsov1.srvstartcnt = 693 nfsstatsv1.srvstartcnt; 694 nfsstatsov1.srvdonecnt = 695 nfsstatsv1.srvdonecnt; 696 for (i = NFSV42_NOPS, 697 j = NFSV42_PURENOPS; 698 i < NFSV42_NOPS + NFSV4OP_FAKENOPS; 699 i++, j++) { 700 nfsstatsov1.srvbytes[j] = 701 nfsstatsv1.srvbytes[i]; 702 nfsstatsov1.srvops[j] = 703 nfsstatsv1.srvops[i]; 704 nfsstatsov1.srvduration[j] = 705 nfsstatsv1.srvduration[i]; 706 } 707 nfsstatsov1.busyfrom = 708 nfsstatsv1.busyfrom; 709 nfsstatsov1.busyfrom = 710 nfsstatsv1.busyfrom; 711 error = copyout(&nfsstatsov1, uap->argp, 712 sizeof(nfsstatsov1)); 713 } else if (nfsstatver.vers != NFSSTATS_V1) 714 error = EPERM; 715 else 716 error = copyout(&nfsstatsv1, uap->argp, 717 sizeof(nfsstatsv1)); 718 } 719 } 720 if (error == 0) { 721 if ((uap->flag & NFSSVC_ZEROCLTSTATS) != 0) { 722 nfsstatsv1.attrcache_hits = 0; 723 nfsstatsv1.attrcache_misses = 0; 724 nfsstatsv1.lookupcache_hits = 0; 725 nfsstatsv1.lookupcache_misses = 0; 726 nfsstatsv1.direofcache_hits = 0; 727 nfsstatsv1.direofcache_misses = 0; 728 nfsstatsv1.accesscache_hits = 0; 729 nfsstatsv1.accesscache_misses = 0; 730 nfsstatsv1.biocache_reads = 0; 731 nfsstatsv1.read_bios = 0; 732 nfsstatsv1.read_physios = 0; 733 nfsstatsv1.biocache_writes = 0; 734 nfsstatsv1.write_bios = 0; 735 nfsstatsv1.write_physios = 0; 736 nfsstatsv1.biocache_readlinks = 0; 737 nfsstatsv1.readlink_bios = 0; 738 nfsstatsv1.biocache_readdirs = 0; 739 nfsstatsv1.readdir_bios = 0; 740 nfsstatsv1.rpcretries = 0; 741 nfsstatsv1.rpcrequests = 0; 742 nfsstatsv1.rpctimeouts = 0; 743 nfsstatsv1.rpcunexpected = 0; 744 nfsstatsv1.rpcinvalid = 0; 745 bzero(nfsstatsv1.rpccnt, 746 sizeof(nfsstatsv1.rpccnt)); 747 } 748 if ((uap->flag & NFSSVC_ZEROSRVSTATS) != 0) { 749 nfsstatsv1.srvcache_inproghits = 0; 750 nfsstatsv1.srvcache_nonidemdonehits = 0; 751 nfsstatsv1.srvcache_misses = 0; 752 nfsstatsv1.srvcache_tcppeak = 0; 753 bzero(nfsstatsv1.srvrpccnt, 754 sizeof(nfsstatsv1.srvrpccnt)); 755 bzero(nfsstatsv1.cbrpccnt, 756 sizeof(nfsstatsv1.cbrpccnt)); 757 } 758 } 759 goto out; 760 } else if (uap->flag & NFSSVC_NFSUSERDPORT) { 761 u_short sockport; 762 struct nfsuserd_args nargs; 763 764 if ((uap->flag & NFSSVC_NEWSTRUCT) == 0) { 765 error = copyin(uap->argp, (caddr_t)&sockport, 766 sizeof (u_short)); 767 if (error == 0) { 768 nargs.nuserd_family = AF_INET; 769 nargs.nuserd_port = sockport; 770 } 771 } else { 772 /* 773 * New nfsuserd_args structure, which indicates 774 * which IP version to use along with the port#. 775 */ 776 error = copyin(uap->argp, &nargs, sizeof(nargs)); 777 } 778 if (!error) 779 error = nfsrv_nfsuserdport(&nargs, p); 780 } else if (uap->flag & NFSSVC_NFSUSERDDELPORT) { 781 nfsrv_nfsuserddelport(); 782 error = 0; 783 } 784 785 out: 786 NFSEXITCODE(error); 787 return (error); 788 } 789 790 /* 791 * called by all three modevent routines, so that it gets things 792 * initialized soon enough. 793 */ 794 void 795 newnfs_portinit(void) 796 { 797 static int inited = 0; 798 799 if (inited) 800 return; 801 inited = 1; 802 /* Initialize SMP locks used by both client and server. */ 803 mtx_init(&newnfsd_mtx, "newnfsd_mtx", NULL, MTX_DEF); 804 mtx_init(&nfs_state_mutex, "nfs_state_mutex", NULL, MTX_DEF); 805 mtx_init(&nfs_clstate_mutex, "nfs_clstate_mutex", NULL, MTX_DEF); 806 } 807 808 /* 809 * Determine if the file system supports NFSv4 ACLs. 810 * Return 1 if it does, 0 otherwise. 811 */ 812 int 813 nfs_supportsnfsv4acls(struct vnode *vp) 814 { 815 int error; 816 long retval; 817 818 ASSERT_VOP_LOCKED(vp, "nfs supports nfsv4acls"); 819 820 if (nfsrv_useacl == 0) 821 return (0); 822 error = VOP_PATHCONF(vp, _PC_ACL_NFS4, &retval); 823 if (error == 0 && retval != 0) 824 return (1); 825 return (0); 826 } 827 828 /* 829 * These are the first fields of all the context structures passed into 830 * nfs_pnfsio(). 831 */ 832 struct pnfsio { 833 int done; 834 int inprog; 835 struct task tsk; 836 }; 837 838 /* 839 * Do a mirror I/O on a pNFS thread. 840 */ 841 int 842 nfs_pnfsio(task_fn_t *func, void *context) 843 { 844 struct pnfsio *pio; 845 int ret; 846 static struct taskqueue *pnfsioq = NULL; 847 848 pio = (struct pnfsio *)context; 849 if (pnfsioq == NULL) { 850 if (nfs_pnfsiothreads == 0) 851 return (EPERM); 852 if (nfs_pnfsiothreads < 0) 853 nfs_pnfsiothreads = mp_ncpus * 4; 854 pnfsioq = taskqueue_create("pnfsioq", M_WAITOK, 855 taskqueue_thread_enqueue, &pnfsioq); 856 if (pnfsioq == NULL) 857 return (ENOMEM); 858 ret = taskqueue_start_threads(&pnfsioq, nfs_pnfsiothreads, 859 0, "pnfsiot"); 860 if (ret != 0) { 861 taskqueue_free(pnfsioq); 862 pnfsioq = NULL; 863 return (ret); 864 } 865 } 866 pio->inprog = 1; 867 TASK_INIT(&pio->tsk, 0, func, context); 868 ret = taskqueue_enqueue(pnfsioq, &pio->tsk); 869 if (ret != 0) 870 pio->inprog = 0; 871 return (ret); 872 } 873 874 extern int (*nfsd_call_nfscommon)(struct thread *, struct nfssvc_args *); 875 876 /* 877 * Called once to initialize data structures... 878 */ 879 static int 880 nfscommon_modevent(module_t mod, int type, void *data) 881 { 882 int error = 0; 883 static int loaded = 0; 884 885 switch (type) { 886 case MOD_LOAD: 887 if (loaded) 888 goto out; 889 newnfs_portinit(); 890 mtx_init(&nfs_nameid_mutex, "nfs_nameid_mutex", NULL, MTX_DEF); 891 mtx_init(&nfs_sockl_mutex, "nfs_sockl_mutex", NULL, MTX_DEF); 892 mtx_init(&nfs_slock_mutex, "nfs_slock_mutex", NULL, MTX_DEF); 893 mtx_init(&nfs_req_mutex, "nfs_req_mutex", NULL, MTX_DEF); 894 mtx_init(&nfsrv_nfsuserdsock.nr_mtx, "nfsuserd", NULL, 895 MTX_DEF); 896 mtx_init(&nfsrv_dslock_mtx, "nfs4ds", NULL, MTX_DEF); 897 TAILQ_INIT(&nfsrv_devidhead); 898 callout_init(&newnfsd_callout, 1); 899 newnfs_init(); 900 nfsd_call_nfscommon = nfssvc_nfscommon; 901 loaded = 1; 902 break; 903 904 case MOD_UNLOAD: 905 if (newnfs_numnfsd != 0 || nfsrv_nfsuserd != NOTRUNNING || 906 nfs_numnfscbd != 0) { 907 error = EBUSY; 908 break; 909 } 910 911 nfsd_call_nfscommon = NULL; 912 callout_drain(&newnfsd_callout); 913 /* Clean out the name<-->id cache. */ 914 nfsrv_cleanusergroup(); 915 /* and get rid of the mutexes */ 916 mtx_destroy(&nfs_nameid_mutex); 917 mtx_destroy(&newnfsd_mtx); 918 mtx_destroy(&nfs_state_mutex); 919 mtx_destroy(&nfs_clstate_mutex); 920 mtx_destroy(&nfs_sockl_mutex); 921 mtx_destroy(&nfs_slock_mutex); 922 mtx_destroy(&nfs_req_mutex); 923 mtx_destroy(&nfsrv_nfsuserdsock.nr_mtx); 924 mtx_destroy(&nfsrv_dslock_mtx); 925 loaded = 0; 926 break; 927 default: 928 error = EOPNOTSUPP; 929 break; 930 } 931 932 out: 933 NFSEXITCODE(error); 934 return error; 935 } 936 static moduledata_t nfscommon_mod = { 937 "nfscommon", 938 nfscommon_modevent, 939 NULL, 940 }; 941 DECLARE_MODULE(nfscommon, nfscommon_mod, SI_SUB_VFS, SI_ORDER_ANY); 942 943 /* So that loader and kldload(2) can find us, wherever we are.. */ 944 MODULE_VERSION(nfscommon, 1); 945 MODULE_DEPEND(nfscommon, nfssvc, 1, 1, 1); 946 MODULE_DEPEND(nfscommon, krpc, 1, 1, 1); 947