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 78 int nfs_pnfsio(task_fn_t *, void *); 79 80 static int nfs_realign_test; 81 static int nfs_realign_count; 82 static struct ext_nfsstats oldnfsstats; 83 static struct nfsstatsov1 nfsstatsov1; 84 85 SYSCTL_NODE(_vfs, OID_AUTO, nfs, CTLFLAG_RW, 0, "NFS filesystem"); 86 SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_test, CTLFLAG_RW, &nfs_realign_test, 87 0, "Number of realign tests done"); 88 SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_count, CTLFLAG_RW, &nfs_realign_count, 89 0, "Number of mbuf realignments done"); 90 SYSCTL_STRING(_vfs_nfs, OID_AUTO, callback_addr, CTLFLAG_RW, 91 nfsv4_callbackaddr, sizeof(nfsv4_callbackaddr), 92 "NFSv4 callback addr for server to use"); 93 SYSCTL_INT(_vfs_nfs, OID_AUTO, debuglevel, CTLFLAG_RW, &nfscl_debuglevel, 94 0, "Debug level for NFS client"); 95 SYSCTL_INT(_vfs_nfs, OID_AUTO, userhashsize, CTLFLAG_RDTUN, &nfsrv_lughashsize, 96 0, "Size of hash tables for uid/name mapping"); 97 int nfs_pnfsiothreads = -1; 98 SYSCTL_INT(_vfs_nfs, OID_AUTO, pnfsiothreads, CTLFLAG_RW, &nfs_pnfsiothreads, 99 0, "Number of pNFS mirror I/O threads"); 100 101 /* 102 * Defines for malloc 103 * (Here for FreeBSD, since they allocate storage.) 104 */ 105 MALLOC_DEFINE(M_NEWNFSRVCACHE, "NFSD srvcache", "NFSD Server Request Cache"); 106 MALLOC_DEFINE(M_NEWNFSDCLIENT, "NFSD V4client", "NFSD V4 Client Id"); 107 MALLOC_DEFINE(M_NEWNFSDSTATE, "NFSD V4state", 108 "NFSD V4 State (Openowner, Open, Lockowner, Delegation"); 109 MALLOC_DEFINE(M_NEWNFSDLOCK, "NFSD V4lock", "NFSD V4 byte range lock"); 110 MALLOC_DEFINE(M_NEWNFSDLOCKFILE, "NFSD lckfile", "NFSD Open/Lock file"); 111 MALLOC_DEFINE(M_NEWNFSSTRING, "NFSD string", "NFSD V4 long string"); 112 MALLOC_DEFINE(M_NEWNFSUSERGROUP, "NFSD usrgroup", "NFSD V4 User/group map"); 113 MALLOC_DEFINE(M_NEWNFSDREQ, "NFS req", "NFS request header"); 114 MALLOC_DEFINE(M_NEWNFSFH, "NFS fh", "NFS file handle"); 115 MALLOC_DEFINE(M_NEWNFSCLOWNER, "NFSCL owner", "NFSCL Open Owner"); 116 MALLOC_DEFINE(M_NEWNFSCLOPEN, "NFSCL open", "NFSCL Open"); 117 MALLOC_DEFINE(M_NEWNFSCLDELEG, "NFSCL deleg", "NFSCL Delegation"); 118 MALLOC_DEFINE(M_NEWNFSCLCLIENT, "NFSCL client", "NFSCL Client"); 119 MALLOC_DEFINE(M_NEWNFSCLLOCKOWNER, "NFSCL lckown", "NFSCL Lock Owner"); 120 MALLOC_DEFINE(M_NEWNFSCLLOCK, "NFSCL lck", "NFSCL Lock"); 121 MALLOC_DEFINE(M_NEWNFSV4NODE, "NEWNFSnode", "NFS vnode"); 122 MALLOC_DEFINE(M_NEWNFSDIRECTIO, "NEWdirectio", "NFS Direct IO buffer"); 123 MALLOC_DEFINE(M_NEWNFSDIROFF, "NFSCL diroffdiroff", 124 "NFS directory offset data"); 125 MALLOC_DEFINE(M_NEWNFSDROLLBACK, "NFSD rollback", 126 "NFS local lock rollback"); 127 MALLOC_DEFINE(M_NEWNFSLAYOUT, "NFSCL layout", "NFSv4.1 Layout"); 128 MALLOC_DEFINE(M_NEWNFSFLAYOUT, "NFSCL flayout", "NFSv4.1 File Layout"); 129 MALLOC_DEFINE(M_NEWNFSDEVINFO, "NFSCL devinfo", "NFSv4.1 Device Info"); 130 MALLOC_DEFINE(M_NEWNFSSOCKREQ, "NFSCL sockreq", "NFS Sock Req"); 131 MALLOC_DEFINE(M_NEWNFSCLDS, "NFSCL session", "NFSv4.1 Session"); 132 MALLOC_DEFINE(M_NEWNFSLAYRECALL, "NFSCL layrecall", "NFSv4.1 Layout Recall"); 133 MALLOC_DEFINE(M_NEWNFSDSESSION, "NFSD session", "NFSD Session for a client"); 134 135 /* 136 * Definition of mutex locks. 137 * newnfsd_mtx is used in nfsrvd_nfsd() to protect the nfs socket list 138 * and assorted other nfsd structures. 139 */ 140 struct mtx newnfsd_mtx; 141 struct mtx nfs_sockl_mutex; 142 struct mtx nfs_state_mutex; 143 struct mtx nfs_nameid_mutex; 144 struct mtx nfs_req_mutex; 145 struct mtx nfs_slock_mutex; 146 struct mtx nfs_clstate_mutex; 147 148 /* local functions */ 149 static int nfssvc_call(struct thread *, struct nfssvc_args *, struct ucred *); 150 151 #ifdef __NO_STRICT_ALIGNMENT 152 /* 153 * These architectures don't need re-alignment, so just return. 154 */ 155 int 156 newnfs_realign(struct mbuf **pm, int how) 157 { 158 159 return (0); 160 } 161 #else /* !__NO_STRICT_ALIGNMENT */ 162 /* 163 * newnfs_realign: 164 * 165 * Check for badly aligned mbuf data and realign by copying the unaligned 166 * portion of the data into a new mbuf chain and freeing the portions 167 * of the old chain that were replaced. 168 * 169 * We cannot simply realign the data within the existing mbuf chain 170 * because the underlying buffers may contain other rpc commands and 171 * we cannot afford to overwrite them. 172 * 173 * We would prefer to avoid this situation entirely. The situation does 174 * not occur with NFS/UDP and is supposed to only occasionally occur 175 * with TCP. Use vfs.nfs.realign_count and realign_test to check this. 176 * 177 */ 178 int 179 newnfs_realign(struct mbuf **pm, int how) 180 { 181 struct mbuf *m, *n; 182 int off, space; 183 184 ++nfs_realign_test; 185 while ((m = *pm) != NULL) { 186 if ((m->m_len & 0x3) || (mtod(m, intptr_t) & 0x3)) { 187 /* 188 * NB: we can't depend on m_pkthdr.len to help us 189 * decide what to do here. May not be worth doing 190 * the m_length calculation as m_copyback will 191 * expand the mbuf chain below as needed. 192 */ 193 space = m_length(m, NULL); 194 if (space >= MINCLSIZE) { 195 /* NB: m_copyback handles space > MCLBYTES */ 196 n = m_getcl(how, MT_DATA, 0); 197 } else 198 n = m_get(how, MT_DATA); 199 if (n == NULL) 200 return (ENOMEM); 201 /* 202 * Align the remainder of the mbuf chain. 203 */ 204 n->m_len = 0; 205 off = 0; 206 while (m != NULL) { 207 m_copyback(n, off, m->m_len, mtod(m, caddr_t)); 208 off += m->m_len; 209 m = m->m_next; 210 } 211 m_freem(*pm); 212 *pm = n; 213 ++nfs_realign_count; 214 break; 215 } 216 pm = &m->m_next; 217 } 218 219 return (0); 220 } 221 #endif /* __NO_STRICT_ALIGNMENT */ 222 223 #ifdef notdef 224 static void 225 nfsrv_object_create(struct vnode *vp, struct thread *td) 226 { 227 228 if (vp == NULL || vp->v_type != VREG) 229 return; 230 (void) vfs_object_create(vp, td, td->td_ucred); 231 } 232 #endif 233 234 /* 235 * Look up a file name. Basically just initialize stuff and call namei(). 236 */ 237 int 238 nfsrv_lookupfilename(struct nameidata *ndp, char *fname, NFSPROC_T *p) 239 { 240 int error; 241 242 NDINIT(ndp, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, fname, 243 p); 244 error = namei(ndp); 245 if (!error) { 246 NDFREE(ndp, NDF_ONLY_PNBUF); 247 } 248 return (error); 249 } 250 251 /* 252 * Copy NFS uid, gids to the cred structure. 253 */ 254 void 255 newnfs_copycred(struct nfscred *nfscr, struct ucred *cr) 256 { 257 258 KASSERT(nfscr->nfsc_ngroups >= 0, 259 ("newnfs_copycred: negative nfsc_ngroups")); 260 cr->cr_uid = nfscr->nfsc_uid; 261 crsetgroups(cr, nfscr->nfsc_ngroups, nfscr->nfsc_groups); 262 } 263 264 /* 265 * Map args from nfsmsleep() to msleep(). 266 */ 267 int 268 nfsmsleep(void *chan, void *mutex, int prio, const char *wmesg, 269 struct timespec *ts) 270 { 271 u_int64_t nsecval; 272 int error, timeo; 273 274 if (ts) { 275 timeo = hz * ts->tv_sec; 276 nsecval = (u_int64_t)ts->tv_nsec; 277 nsecval = ((nsecval * ((u_int64_t)hz)) + 500000000) / 278 1000000000; 279 timeo += (int)nsecval; 280 } else { 281 timeo = 0; 282 } 283 error = msleep(chan, (struct mtx *)mutex, prio, wmesg, timeo); 284 return (error); 285 } 286 287 /* 288 * Get the file system info for the server. For now, just assume FFS. 289 */ 290 void 291 nfsvno_getfs(struct nfsfsinfo *sip, int isdgram) 292 { 293 int pref; 294 295 /* 296 * XXX 297 * There should be file system VFS OP(s) to get this information. 298 * For now, assume ufs. 299 */ 300 if (isdgram) 301 pref = NFS_MAXDGRAMDATA; 302 else 303 pref = NFS_SRVMAXIO; 304 sip->fs_rtmax = NFS_SRVMAXIO; 305 sip->fs_rtpref = pref; 306 sip->fs_rtmult = NFS_FABLKSIZE; 307 sip->fs_wtmax = NFS_SRVMAXIO; 308 sip->fs_wtpref = pref; 309 sip->fs_wtmult = NFS_FABLKSIZE; 310 sip->fs_dtpref = pref; 311 sip->fs_maxfilesize = 0xffffffffffffffffull; 312 sip->fs_timedelta.tv_sec = 0; 313 sip->fs_timedelta.tv_nsec = 1; 314 sip->fs_properties = (NFSV3FSINFO_LINK | 315 NFSV3FSINFO_SYMLINK | NFSV3FSINFO_HOMOGENEOUS | 316 NFSV3FSINFO_CANSETTIME); 317 } 318 319 /* 320 * Do the pathconf vnode op. 321 */ 322 int 323 nfsvno_pathconf(struct vnode *vp, int flag, long *retf, 324 struct ucred *cred, struct thread *p) 325 { 326 int error; 327 328 error = VOP_PATHCONF(vp, flag, retf); 329 if (error == EOPNOTSUPP || error == EINVAL) { 330 /* 331 * Some file systems return EINVAL for name arguments not 332 * supported and some return EOPNOTSUPP for this case. 333 * So the NFSv3 Pathconf RPC doesn't fail for these cases, 334 * just fake them. 335 */ 336 switch (flag) { 337 case _PC_LINK_MAX: 338 *retf = NFS_LINK_MAX; 339 break; 340 case _PC_NAME_MAX: 341 *retf = NAME_MAX; 342 break; 343 case _PC_CHOWN_RESTRICTED: 344 *retf = 1; 345 break; 346 case _PC_NO_TRUNC: 347 *retf = 1; 348 break; 349 default: 350 /* 351 * Only happens if a _PC_xxx is added to the server, 352 * but this isn't updated. 353 */ 354 *retf = 0; 355 printf("nfsrvd pathconf flag=%d not supp\n", flag); 356 } 357 error = 0; 358 } 359 NFSEXITCODE(error); 360 return (error); 361 } 362 363 /* Fake nfsrv_atroot. Just return 0 */ 364 int 365 nfsrv_atroot(struct vnode *vp, uint64_t *retp) 366 { 367 368 return (0); 369 } 370 371 /* 372 * Set the credentials to refer to root. 373 * If only the various BSDen could agree on whether cr_gid is a separate 374 * field or cr_groups[0]... 375 */ 376 void 377 newnfs_setroot(struct ucred *cred) 378 { 379 380 cred->cr_uid = 0; 381 cred->cr_groups[0] = 0; 382 cred->cr_ngroups = 1; 383 } 384 385 /* 386 * Get the client credential. Used for Renew and recovery. 387 */ 388 struct ucred * 389 newnfs_getcred(void) 390 { 391 struct ucred *cred; 392 struct thread *td = curthread; 393 394 cred = crdup(td->td_ucred); 395 newnfs_setroot(cred); 396 return (cred); 397 } 398 399 /* 400 * Nfs timer routine 401 * Call the nfsd's timer function once/sec. 402 */ 403 void 404 newnfs_timer(void *arg) 405 { 406 static time_t lasttime = 0; 407 /* 408 * Call the server timer, if set up. 409 * The argument indicates if it is the next second and therefore 410 * leases should be checked. 411 */ 412 if (lasttime != NFSD_MONOSEC) { 413 lasttime = NFSD_MONOSEC; 414 if (nfsd_call_servertimer != NULL) 415 (*nfsd_call_servertimer)(); 416 } 417 callout_reset(&newnfsd_callout, nfscl_ticks, newnfs_timer, NULL); 418 } 419 420 421 /* 422 * Sleep for a short period of time unless errval == NFSERR_GRACE, where 423 * the sleep should be for 5 seconds. 424 * Since lbolt doesn't exist in FreeBSD-CURRENT, just use a timeout on 425 * an event that never gets a wakeup. Only return EINTR or 0. 426 */ 427 int 428 nfs_catnap(int prio, int errval, const char *wmesg) 429 { 430 static int non_event; 431 int ret; 432 433 if (errval == NFSERR_GRACE) 434 ret = tsleep(&non_event, prio, wmesg, 5 * hz); 435 else 436 ret = tsleep(&non_event, prio, wmesg, 1); 437 if (ret != EINTR) 438 ret = 0; 439 return (ret); 440 } 441 442 /* 443 * Get referral. For now, just fail. 444 */ 445 struct nfsreferral * 446 nfsv4root_getreferral(struct vnode *vp, struct vnode *dvp, u_int32_t fileno) 447 { 448 449 return (NULL); 450 } 451 452 static int 453 nfssvc_nfscommon(struct thread *td, struct nfssvc_args *uap) 454 { 455 int error; 456 457 error = nfssvc_call(td, uap, td->td_ucred); 458 NFSEXITCODE(error); 459 return (error); 460 } 461 462 static int 463 nfssvc_call(struct thread *p, struct nfssvc_args *uap, struct ucred *cred) 464 { 465 int error = EINVAL, i, j; 466 struct nfsd_idargs nid; 467 struct nfsd_oidargs onid; 468 struct { 469 int vers; /* Just the first field of nfsstats. */ 470 } nfsstatver; 471 472 if (uap->flag & NFSSVC_IDNAME) { 473 if ((uap->flag & NFSSVC_NEWSTRUCT) != 0) 474 error = copyin(uap->argp, &nid, sizeof(nid)); 475 else { 476 error = copyin(uap->argp, &onid, sizeof(onid)); 477 if (error == 0) { 478 nid.nid_flag = onid.nid_flag; 479 nid.nid_uid = onid.nid_uid; 480 nid.nid_gid = onid.nid_gid; 481 nid.nid_usermax = onid.nid_usermax; 482 nid.nid_usertimeout = onid.nid_usertimeout; 483 nid.nid_name = onid.nid_name; 484 nid.nid_namelen = onid.nid_namelen; 485 nid.nid_ngroup = 0; 486 nid.nid_grps = NULL; 487 } 488 } 489 if (error) 490 goto out; 491 error = nfssvc_idname(&nid); 492 goto out; 493 } else if (uap->flag & NFSSVC_GETSTATS) { 494 if ((uap->flag & NFSSVC_NEWSTRUCT) == 0) { 495 /* Copy fields to the old ext_nfsstat structure. */ 496 oldnfsstats.attrcache_hits = 497 nfsstatsv1.attrcache_hits; 498 oldnfsstats.attrcache_misses = 499 nfsstatsv1.attrcache_misses; 500 oldnfsstats.lookupcache_hits = 501 nfsstatsv1.lookupcache_hits; 502 oldnfsstats.lookupcache_misses = 503 nfsstatsv1.lookupcache_misses; 504 oldnfsstats.direofcache_hits = 505 nfsstatsv1.direofcache_hits; 506 oldnfsstats.direofcache_misses = 507 nfsstatsv1.direofcache_misses; 508 oldnfsstats.accesscache_hits = 509 nfsstatsv1.accesscache_hits; 510 oldnfsstats.accesscache_misses = 511 nfsstatsv1.accesscache_misses; 512 oldnfsstats.biocache_reads = 513 nfsstatsv1.biocache_reads; 514 oldnfsstats.read_bios = 515 nfsstatsv1.read_bios; 516 oldnfsstats.read_physios = 517 nfsstatsv1.read_physios; 518 oldnfsstats.biocache_writes = 519 nfsstatsv1.biocache_writes; 520 oldnfsstats.write_bios = 521 nfsstatsv1.write_bios; 522 oldnfsstats.write_physios = 523 nfsstatsv1.write_physios; 524 oldnfsstats.biocache_readlinks = 525 nfsstatsv1.biocache_readlinks; 526 oldnfsstats.readlink_bios = 527 nfsstatsv1.readlink_bios; 528 oldnfsstats.biocache_readdirs = 529 nfsstatsv1.biocache_readdirs; 530 oldnfsstats.readdir_bios = 531 nfsstatsv1.readdir_bios; 532 for (i = 0; i < NFSV4_NPROCS; i++) 533 oldnfsstats.rpccnt[i] = nfsstatsv1.rpccnt[i]; 534 oldnfsstats.rpcretries = nfsstatsv1.rpcretries; 535 for (i = 0; i < NFSV4OP_NOPS; i++) 536 oldnfsstats.srvrpccnt[i] = 537 nfsstatsv1.srvrpccnt[i]; 538 for (i = NFSV42_NOPS, j = NFSV4OP_NOPS; 539 i < NFSV42_NOPS + NFSV4OP_FAKENOPS; i++, j++) 540 oldnfsstats.srvrpccnt[j] = 541 nfsstatsv1.srvrpccnt[i]; 542 oldnfsstats.srvrpc_errs = nfsstatsv1.srvrpc_errs; 543 oldnfsstats.srv_errs = nfsstatsv1.srv_errs; 544 oldnfsstats.rpcrequests = nfsstatsv1.rpcrequests; 545 oldnfsstats.rpctimeouts = nfsstatsv1.rpctimeouts; 546 oldnfsstats.rpcunexpected = nfsstatsv1.rpcunexpected; 547 oldnfsstats.rpcinvalid = nfsstatsv1.rpcinvalid; 548 oldnfsstats.srvcache_inproghits = 549 nfsstatsv1.srvcache_inproghits; 550 oldnfsstats.srvcache_idemdonehits = 551 nfsstatsv1.srvcache_idemdonehits; 552 oldnfsstats.srvcache_nonidemdonehits = 553 nfsstatsv1.srvcache_nonidemdonehits; 554 oldnfsstats.srvcache_misses = 555 nfsstatsv1.srvcache_misses; 556 oldnfsstats.srvcache_tcppeak = 557 nfsstatsv1.srvcache_tcppeak; 558 oldnfsstats.srvcache_size = nfsstatsv1.srvcache_size; 559 oldnfsstats.srvclients = nfsstatsv1.srvclients; 560 oldnfsstats.srvopenowners = nfsstatsv1.srvopenowners; 561 oldnfsstats.srvopens = nfsstatsv1.srvopens; 562 oldnfsstats.srvlockowners = nfsstatsv1.srvlockowners; 563 oldnfsstats.srvlocks = nfsstatsv1.srvlocks; 564 oldnfsstats.srvdelegates = nfsstatsv1.srvdelegates; 565 for (i = 0; i < NFSV4OP_CBNOPS; i++) 566 oldnfsstats.cbrpccnt[i] = 567 nfsstatsv1.cbrpccnt[i]; 568 oldnfsstats.clopenowners = nfsstatsv1.clopenowners; 569 oldnfsstats.clopens = nfsstatsv1.clopens; 570 oldnfsstats.cllockowners = nfsstatsv1.cllockowners; 571 oldnfsstats.cllocks = nfsstatsv1.cllocks; 572 oldnfsstats.cldelegates = nfsstatsv1.cldelegates; 573 oldnfsstats.cllocalopenowners = 574 nfsstatsv1.cllocalopenowners; 575 oldnfsstats.cllocalopens = nfsstatsv1.cllocalopens; 576 oldnfsstats.cllocallockowners = 577 nfsstatsv1.cllocallockowners; 578 oldnfsstats.cllocallocks = nfsstatsv1.cllocallocks; 579 error = copyout(&oldnfsstats, uap->argp, 580 sizeof (oldnfsstats)); 581 } else { 582 error = copyin(uap->argp, &nfsstatver, 583 sizeof(nfsstatver)); 584 if (error == 0) { 585 if (nfsstatver.vers == NFSSTATS_OV1) { 586 /* Copy nfsstatsv1 to nfsstatsov1. */ 587 nfsstatsov1.attrcache_hits = 588 nfsstatsv1.attrcache_hits; 589 nfsstatsov1.attrcache_misses = 590 nfsstatsv1.attrcache_misses; 591 nfsstatsov1.lookupcache_hits = 592 nfsstatsv1.lookupcache_hits; 593 nfsstatsov1.lookupcache_misses = 594 nfsstatsv1.lookupcache_misses; 595 nfsstatsov1.direofcache_hits = 596 nfsstatsv1.direofcache_hits; 597 nfsstatsov1.direofcache_misses = 598 nfsstatsv1.direofcache_misses; 599 nfsstatsov1.accesscache_hits = 600 nfsstatsv1.accesscache_hits; 601 nfsstatsov1.accesscache_misses = 602 nfsstatsv1.accesscache_misses; 603 nfsstatsov1.biocache_reads = 604 nfsstatsv1.biocache_reads; 605 nfsstatsov1.read_bios = 606 nfsstatsv1.read_bios; 607 nfsstatsov1.read_physios = 608 nfsstatsv1.read_physios; 609 nfsstatsov1.biocache_writes = 610 nfsstatsv1.biocache_writes; 611 nfsstatsov1.write_bios = 612 nfsstatsv1.write_bios; 613 nfsstatsov1.write_physios = 614 nfsstatsv1.write_physios; 615 nfsstatsov1.biocache_readlinks = 616 nfsstatsv1.biocache_readlinks; 617 nfsstatsov1.readlink_bios = 618 nfsstatsv1.readlink_bios; 619 nfsstatsov1.biocache_readdirs = 620 nfsstatsv1.biocache_readdirs; 621 nfsstatsov1.readdir_bios = 622 nfsstatsv1.readdir_bios; 623 for (i = 0; i < NFSV42_NPROCS; i++) 624 nfsstatsov1.rpccnt[i] = 625 nfsstatsv1.rpccnt[i]; 626 nfsstatsov1.rpcretries = 627 nfsstatsv1.rpcretries; 628 for (i = 0; i < NFSV42_PURENOPS; i++) 629 nfsstatsov1.srvrpccnt[i] = 630 nfsstatsv1.srvrpccnt[i]; 631 for (i = NFSV42_NOPS, 632 j = NFSV42_PURENOPS; 633 i < NFSV42_NOPS + NFSV4OP_FAKENOPS; 634 i++, j++) 635 nfsstatsov1.srvrpccnt[j] = 636 nfsstatsv1.srvrpccnt[i]; 637 nfsstatsov1.srvrpc_errs = 638 nfsstatsv1.srvrpc_errs; 639 nfsstatsov1.srv_errs = 640 nfsstatsv1.srv_errs; 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.srvcache_idemdonehits = 652 nfsstatsv1.srvcache_idemdonehits; 653 nfsstatsov1.srvcache_nonidemdonehits = 654 nfsstatsv1.srvcache_nonidemdonehits; 655 nfsstatsov1.srvcache_misses = 656 nfsstatsv1.srvcache_misses; 657 nfsstatsov1.srvcache_tcppeak = 658 nfsstatsv1.srvcache_tcppeak; 659 nfsstatsov1.srvcache_size = 660 nfsstatsv1.srvcache_size; 661 nfsstatsov1.srvclients = 662 nfsstatsv1.srvclients; 663 nfsstatsov1.srvopenowners = 664 nfsstatsv1.srvopenowners; 665 nfsstatsov1.srvopens = 666 nfsstatsv1.srvopens; 667 nfsstatsov1.srvlockowners = 668 nfsstatsv1.srvlockowners; 669 nfsstatsov1.srvlocks = 670 nfsstatsv1.srvlocks; 671 nfsstatsov1.srvdelegates = 672 nfsstatsv1.srvdelegates; 673 for (i = 0; i < NFSV42_CBNOPS; i++) 674 nfsstatsov1.cbrpccnt[i] = 675 nfsstatsv1.cbrpccnt[i]; 676 nfsstatsov1.clopenowners = 677 nfsstatsv1.clopenowners; 678 nfsstatsov1.clopens = 679 nfsstatsv1.clopens; 680 nfsstatsov1.cllockowners = 681 nfsstatsv1.cllockowners; 682 nfsstatsov1.cllocks = 683 nfsstatsv1.cllocks; 684 nfsstatsov1.cldelegates = 685 nfsstatsv1.cldelegates; 686 nfsstatsov1.cllocalopenowners = 687 nfsstatsv1.cllocalopenowners; 688 nfsstatsov1.cllocalopens = 689 nfsstatsv1.cllocalopens; 690 nfsstatsov1.cllocallockowners = 691 nfsstatsv1.cllocallockowners; 692 nfsstatsov1.cllocallocks = 693 nfsstatsv1.cllocallocks; 694 nfsstatsov1.srvstartcnt = 695 nfsstatsv1.srvstartcnt; 696 nfsstatsov1.srvdonecnt = 697 nfsstatsv1.srvdonecnt; 698 for (i = NFSV42_NOPS, 699 j = NFSV42_PURENOPS; 700 i < NFSV42_NOPS + NFSV4OP_FAKENOPS; 701 i++, j++) { 702 nfsstatsov1.srvbytes[j] = 703 nfsstatsv1.srvbytes[i]; 704 nfsstatsov1.srvops[j] = 705 nfsstatsv1.srvops[i]; 706 nfsstatsov1.srvduration[j] = 707 nfsstatsv1.srvduration[i]; 708 } 709 nfsstatsov1.busyfrom = 710 nfsstatsv1.busyfrom; 711 nfsstatsov1.busyfrom = 712 nfsstatsv1.busyfrom; 713 error = copyout(&nfsstatsov1, uap->argp, 714 sizeof(nfsstatsov1)); 715 } else if (nfsstatver.vers != NFSSTATS_V1) 716 error = EPERM; 717 else 718 error = copyout(&nfsstatsv1, uap->argp, 719 sizeof(nfsstatsv1)); 720 } 721 } 722 if (error == 0) { 723 if ((uap->flag & NFSSVC_ZEROCLTSTATS) != 0) { 724 nfsstatsv1.attrcache_hits = 0; 725 nfsstatsv1.attrcache_misses = 0; 726 nfsstatsv1.lookupcache_hits = 0; 727 nfsstatsv1.lookupcache_misses = 0; 728 nfsstatsv1.direofcache_hits = 0; 729 nfsstatsv1.direofcache_misses = 0; 730 nfsstatsv1.accesscache_hits = 0; 731 nfsstatsv1.accesscache_misses = 0; 732 nfsstatsv1.biocache_reads = 0; 733 nfsstatsv1.read_bios = 0; 734 nfsstatsv1.read_physios = 0; 735 nfsstatsv1.biocache_writes = 0; 736 nfsstatsv1.write_bios = 0; 737 nfsstatsv1.write_physios = 0; 738 nfsstatsv1.biocache_readlinks = 0; 739 nfsstatsv1.readlink_bios = 0; 740 nfsstatsv1.biocache_readdirs = 0; 741 nfsstatsv1.readdir_bios = 0; 742 nfsstatsv1.rpcretries = 0; 743 nfsstatsv1.rpcrequests = 0; 744 nfsstatsv1.rpctimeouts = 0; 745 nfsstatsv1.rpcunexpected = 0; 746 nfsstatsv1.rpcinvalid = 0; 747 bzero(nfsstatsv1.rpccnt, 748 sizeof(nfsstatsv1.rpccnt)); 749 } 750 if ((uap->flag & NFSSVC_ZEROSRVSTATS) != 0) { 751 nfsstatsv1.srvrpc_errs = 0; 752 nfsstatsv1.srv_errs = 0; 753 nfsstatsv1.srvcache_inproghits = 0; 754 nfsstatsv1.srvcache_idemdonehits = 0; 755 nfsstatsv1.srvcache_nonidemdonehits = 0; 756 nfsstatsv1.srvcache_misses = 0; 757 nfsstatsv1.srvcache_tcppeak = 0; 758 bzero(nfsstatsv1.srvrpccnt, 759 sizeof(nfsstatsv1.srvrpccnt)); 760 bzero(nfsstatsv1.cbrpccnt, 761 sizeof(nfsstatsv1.cbrpccnt)); 762 } 763 } 764 goto out; 765 } else if (uap->flag & NFSSVC_NFSUSERDPORT) { 766 u_short sockport; 767 struct nfsuserd_args nargs; 768 769 if ((uap->flag & NFSSVC_NEWSTRUCT) == 0) { 770 error = copyin(uap->argp, (caddr_t)&sockport, 771 sizeof (u_short)); 772 if (error == 0) { 773 nargs.nuserd_family = AF_INET; 774 nargs.nuserd_port = sockport; 775 } 776 } else { 777 /* 778 * New nfsuserd_args structure, which indicates 779 * which IP version to use along with the port#. 780 */ 781 error = copyin(uap->argp, &nargs, sizeof(nargs)); 782 } 783 if (!error) 784 error = nfsrv_nfsuserdport(&nargs, p); 785 } else if (uap->flag & NFSSVC_NFSUSERDDELPORT) { 786 nfsrv_nfsuserddelport(); 787 error = 0; 788 } 789 790 out: 791 NFSEXITCODE(error); 792 return (error); 793 } 794 795 /* 796 * called by all three modevent routines, so that it gets things 797 * initialized soon enough. 798 */ 799 void 800 newnfs_portinit(void) 801 { 802 static int inited = 0; 803 804 if (inited) 805 return; 806 inited = 1; 807 /* Initialize SMP locks used by both client and server. */ 808 mtx_init(&newnfsd_mtx, "newnfsd_mtx", NULL, MTX_DEF); 809 mtx_init(&nfs_state_mutex, "nfs_state_mutex", NULL, MTX_DEF); 810 mtx_init(&nfs_clstate_mutex, "nfs_clstate_mutex", NULL, MTX_DEF); 811 } 812 813 /* 814 * Determine if the file system supports NFSv4 ACLs. 815 * Return 1 if it does, 0 otherwise. 816 */ 817 int 818 nfs_supportsnfsv4acls(struct vnode *vp) 819 { 820 int error; 821 long retval; 822 823 ASSERT_VOP_LOCKED(vp, "nfs supports nfsv4acls"); 824 825 if (nfsrv_useacl == 0) 826 return (0); 827 error = VOP_PATHCONF(vp, _PC_ACL_NFS4, &retval); 828 if (error == 0 && retval != 0) 829 return (1); 830 return (0); 831 } 832 833 /* 834 * These are the first fields of all the context structures passed into 835 * nfs_pnfsio(). 836 */ 837 struct pnfsio { 838 int done; 839 int inprog; 840 struct task tsk; 841 }; 842 843 /* 844 * Do a mirror I/O on a pNFS thread. 845 */ 846 int 847 nfs_pnfsio(task_fn_t *func, void *context) 848 { 849 struct pnfsio *pio; 850 int ret; 851 static struct taskqueue *pnfsioq = NULL; 852 853 pio = (struct pnfsio *)context; 854 if (pnfsioq == NULL) { 855 if (nfs_pnfsiothreads == 0) 856 return (EPERM); 857 if (nfs_pnfsiothreads < 0) 858 nfs_pnfsiothreads = mp_ncpus * 4; 859 pnfsioq = taskqueue_create("pnfsioq", M_WAITOK, 860 taskqueue_thread_enqueue, &pnfsioq); 861 if (pnfsioq == NULL) 862 return (ENOMEM); 863 ret = taskqueue_start_threads(&pnfsioq, nfs_pnfsiothreads, 864 0, "pnfsiot"); 865 if (ret != 0) { 866 taskqueue_free(pnfsioq); 867 pnfsioq = NULL; 868 return (ret); 869 } 870 } 871 pio->inprog = 1; 872 TASK_INIT(&pio->tsk, 0, func, context); 873 ret = taskqueue_enqueue(pnfsioq, &pio->tsk); 874 if (ret != 0) 875 pio->inprog = 0; 876 return (ret); 877 } 878 879 extern int (*nfsd_call_nfscommon)(struct thread *, struct nfssvc_args *); 880 881 /* 882 * Called once to initialize data structures... 883 */ 884 static int 885 nfscommon_modevent(module_t mod, int type, void *data) 886 { 887 int error = 0; 888 static int loaded = 0; 889 890 switch (type) { 891 case MOD_LOAD: 892 if (loaded) 893 goto out; 894 newnfs_portinit(); 895 mtx_init(&nfs_nameid_mutex, "nfs_nameid_mutex", NULL, MTX_DEF); 896 mtx_init(&nfs_sockl_mutex, "nfs_sockl_mutex", NULL, MTX_DEF); 897 mtx_init(&nfs_slock_mutex, "nfs_slock_mutex", NULL, MTX_DEF); 898 mtx_init(&nfs_req_mutex, "nfs_req_mutex", NULL, MTX_DEF); 899 mtx_init(&nfsrv_nfsuserdsock.nr_mtx, "nfsuserd", NULL, 900 MTX_DEF); 901 mtx_init(&nfsrv_dslock_mtx, "nfs4ds", NULL, MTX_DEF); 902 TAILQ_INIT(&nfsrv_devidhead); 903 callout_init(&newnfsd_callout, 1); 904 newnfs_init(); 905 nfsd_call_nfscommon = nfssvc_nfscommon; 906 loaded = 1; 907 break; 908 909 case MOD_UNLOAD: 910 if (newnfs_numnfsd != 0 || nfsrv_nfsuserd != NOTRUNNING || 911 nfs_numnfscbd != 0) { 912 error = EBUSY; 913 break; 914 } 915 916 nfsd_call_nfscommon = NULL; 917 callout_drain(&newnfsd_callout); 918 /* Clean out the name<-->id cache. */ 919 nfsrv_cleanusergroup(); 920 /* and get rid of the mutexes */ 921 mtx_destroy(&nfs_nameid_mutex); 922 mtx_destroy(&newnfsd_mtx); 923 mtx_destroy(&nfs_state_mutex); 924 mtx_destroy(&nfs_clstate_mutex); 925 mtx_destroy(&nfs_sockl_mutex); 926 mtx_destroy(&nfs_slock_mutex); 927 mtx_destroy(&nfs_req_mutex); 928 mtx_destroy(&nfsrv_nfsuserdsock.nr_mtx); 929 mtx_destroy(&nfsrv_dslock_mtx); 930 loaded = 0; 931 break; 932 default: 933 error = EOPNOTSUPP; 934 break; 935 } 936 937 out: 938 NFSEXITCODE(error); 939 return error; 940 } 941 static moduledata_t nfscommon_mod = { 942 "nfscommon", 943 nfscommon_modevent, 944 NULL, 945 }; 946 DECLARE_MODULE(nfscommon, nfscommon_mod, SI_SUB_VFS, SI_ORDER_ANY); 947 948 /* So that loader and kldload(2) can find us, wherever we are.. */ 949 MODULE_VERSION(nfscommon, 1); 950 MODULE_DEPEND(nfscommon, nfssvc, 1, 1, 1); 951 MODULE_DEPEND(nfscommon, krpc, 1, 1, 1); 952 953