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 | CTLFLAG_MPSAFE, 0, 86 "NFS filesystem"); 87 SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_test, CTLFLAG_RW, &nfs_realign_test, 88 0, "Number of realign tests done"); 89 SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_count, CTLFLAG_RW, &nfs_realign_count, 90 0, "Number of mbuf realignments done"); 91 SYSCTL_STRING(_vfs_nfs, OID_AUTO, callback_addr, CTLFLAG_RW, 92 nfsv4_callbackaddr, sizeof(nfsv4_callbackaddr), 93 "NFSv4 callback addr for server to use"); 94 SYSCTL_INT(_vfs_nfs, OID_AUTO, debuglevel, CTLFLAG_RW, &nfscl_debuglevel, 95 0, "Debug level for NFS client"); 96 SYSCTL_INT(_vfs_nfs, OID_AUTO, userhashsize, CTLFLAG_RDTUN, &nfsrv_lughashsize, 97 0, "Size of hash tables for uid/name mapping"); 98 int nfs_pnfsiothreads = -1; 99 SYSCTL_INT(_vfs_nfs, OID_AUTO, pnfsiothreads, CTLFLAG_RW, &nfs_pnfsiothreads, 100 0, "Number of pNFS mirror I/O threads"); 101 102 /* 103 * Defines for malloc 104 * (Here for FreeBSD, since they allocate storage.) 105 */ 106 MALLOC_DEFINE(M_NEWNFSRVCACHE, "NFSD srvcache", "NFSD Server Request Cache"); 107 MALLOC_DEFINE(M_NEWNFSDCLIENT, "NFSD V4client", "NFSD V4 Client Id"); 108 MALLOC_DEFINE(M_NEWNFSDSTATE, "NFSD V4state", 109 "NFSD V4 State (Openowner, Open, Lockowner, Delegation"); 110 MALLOC_DEFINE(M_NEWNFSDLOCK, "NFSD V4lock", "NFSD V4 byte range lock"); 111 MALLOC_DEFINE(M_NEWNFSDLOCKFILE, "NFSD lckfile", "NFSD Open/Lock file"); 112 MALLOC_DEFINE(M_NEWNFSSTRING, "NFSD string", "NFSD V4 long string"); 113 MALLOC_DEFINE(M_NEWNFSUSERGROUP, "NFSD usrgroup", "NFSD V4 User/group map"); 114 MALLOC_DEFINE(M_NEWNFSDREQ, "NFS req", "NFS request header"); 115 MALLOC_DEFINE(M_NEWNFSFH, "NFS fh", "NFS file handle"); 116 MALLOC_DEFINE(M_NEWNFSCLOWNER, "NFSCL owner", "NFSCL Open Owner"); 117 MALLOC_DEFINE(M_NEWNFSCLOPEN, "NFSCL open", "NFSCL Open"); 118 MALLOC_DEFINE(M_NEWNFSCLDELEG, "NFSCL deleg", "NFSCL Delegation"); 119 MALLOC_DEFINE(M_NEWNFSCLCLIENT, "NFSCL client", "NFSCL Client"); 120 MALLOC_DEFINE(M_NEWNFSCLLOCKOWNER, "NFSCL lckown", "NFSCL Lock Owner"); 121 MALLOC_DEFINE(M_NEWNFSCLLOCK, "NFSCL lck", "NFSCL Lock"); 122 MALLOC_DEFINE(M_NEWNFSV4NODE, "NEWNFSnode", "NFS vnode"); 123 MALLOC_DEFINE(M_NEWNFSDIRECTIO, "NEWdirectio", "NFS Direct IO buffer"); 124 MALLOC_DEFINE(M_NEWNFSDIROFF, "NFSCL diroffdiroff", 125 "NFS directory offset data"); 126 MALLOC_DEFINE(M_NEWNFSDROLLBACK, "NFSD rollback", 127 "NFS local lock rollback"); 128 MALLOC_DEFINE(M_NEWNFSLAYOUT, "NFSCL layout", "NFSv4.1 Layout"); 129 MALLOC_DEFINE(M_NEWNFSFLAYOUT, "NFSCL flayout", "NFSv4.1 File Layout"); 130 MALLOC_DEFINE(M_NEWNFSDEVINFO, "NFSCL devinfo", "NFSv4.1 Device Info"); 131 MALLOC_DEFINE(M_NEWNFSSOCKREQ, "NFSCL sockreq", "NFS Sock Req"); 132 MALLOC_DEFINE(M_NEWNFSCLDS, "NFSCL session", "NFSv4.1 Session"); 133 MALLOC_DEFINE(M_NEWNFSLAYRECALL, "NFSCL layrecall", "NFSv4.1 Layout Recall"); 134 MALLOC_DEFINE(M_NEWNFSDSESSION, "NFSD session", "NFSD Session for a client"); 135 136 /* 137 * Definition of mutex locks. 138 * newnfsd_mtx is used in nfsrvd_nfsd() to protect the nfs socket list 139 * and assorted other nfsd structures. 140 */ 141 struct mtx newnfsd_mtx; 142 struct mtx nfs_sockl_mutex; 143 struct mtx nfs_state_mutex; 144 struct mtx nfs_nameid_mutex; 145 struct mtx nfs_req_mutex; 146 struct mtx nfs_slock_mutex; 147 struct mtx nfs_clstate_mutex; 148 149 /* local functions */ 150 static int nfssvc_call(struct thread *, struct nfssvc_args *, struct ucred *); 151 152 #ifdef __NO_STRICT_ALIGNMENT 153 /* 154 * These architectures don't need re-alignment, so just return. 155 */ 156 int 157 newnfs_realign(struct mbuf **pm, int how) 158 { 159 160 return (0); 161 } 162 #else /* !__NO_STRICT_ALIGNMENT */ 163 /* 164 * newnfs_realign: 165 * 166 * Check for badly aligned mbuf data and realign by copying the unaligned 167 * portion of the data into a new mbuf chain and freeing the portions 168 * of the old chain that were replaced. 169 * 170 * We cannot simply realign the data within the existing mbuf chain 171 * because the underlying buffers may contain other rpc commands and 172 * we cannot afford to overwrite them. 173 * 174 * We would prefer to avoid this situation entirely. The situation does 175 * not occur with NFS/UDP and is supposed to only occasionally occur 176 * with TCP. Use vfs.nfs.realign_count and realign_test to check this. 177 * 178 */ 179 int 180 newnfs_realign(struct mbuf **pm, int how) 181 { 182 struct mbuf *m, *n; 183 int off, space; 184 185 ++nfs_realign_test; 186 while ((m = *pm) != NULL) { 187 if ((m->m_len & 0x3) || (mtod(m, intptr_t) & 0x3)) { 188 /* 189 * NB: we can't depend on m_pkthdr.len to help us 190 * decide what to do here. May not be worth doing 191 * the m_length calculation as m_copyback will 192 * expand the mbuf chain below as needed. 193 */ 194 space = m_length(m, NULL); 195 if (space >= MINCLSIZE) { 196 /* NB: m_copyback handles space > MCLBYTES */ 197 n = m_getcl(how, MT_DATA, 0); 198 } else 199 n = m_get(how, MT_DATA); 200 if (n == NULL) 201 return (ENOMEM); 202 /* 203 * Align the remainder of the mbuf chain. 204 */ 205 n->m_len = 0; 206 off = 0; 207 while (m != NULL) { 208 m_copyback(n, off, m->m_len, mtod(m, caddr_t)); 209 off += m->m_len; 210 m = m->m_next; 211 } 212 m_freem(*pm); 213 *pm = n; 214 ++nfs_realign_count; 215 break; 216 } 217 pm = &m->m_next; 218 } 219 220 return (0); 221 } 222 #endif /* __NO_STRICT_ALIGNMENT */ 223 224 #ifdef notdef 225 static void 226 nfsrv_object_create(struct vnode *vp, struct thread *td) 227 { 228 229 if (vp == NULL || vp->v_type != VREG) 230 return; 231 (void) vfs_object_create(vp, td, td->td_ucred); 232 } 233 #endif 234 235 /* 236 * Look up a file name. Basically just initialize stuff and call namei(). 237 */ 238 int 239 nfsrv_lookupfilename(struct nameidata *ndp, char *fname, NFSPROC_T *p) 240 { 241 int error; 242 243 NDINIT(ndp, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, fname, 244 p); 245 error = namei(ndp); 246 if (!error) { 247 NDFREE(ndp, NDF_ONLY_PNBUF); 248 } 249 return (error); 250 } 251 252 /* 253 * Copy NFS uid, gids to the cred structure. 254 */ 255 void 256 newnfs_copycred(struct nfscred *nfscr, struct ucred *cr) 257 { 258 259 KASSERT(nfscr->nfsc_ngroups >= 0, 260 ("newnfs_copycred: negative nfsc_ngroups")); 261 cr->cr_uid = nfscr->nfsc_uid; 262 crsetgroups(cr, nfscr->nfsc_ngroups, nfscr->nfsc_groups); 263 } 264 265 /* 266 * Map args from nfsmsleep() to msleep(). 267 */ 268 int 269 nfsmsleep(void *chan, void *mutex, int prio, const char *wmesg, 270 struct timespec *ts) 271 { 272 u_int64_t nsecval; 273 int error, timeo; 274 275 if (ts) { 276 timeo = hz * ts->tv_sec; 277 nsecval = (u_int64_t)ts->tv_nsec; 278 nsecval = ((nsecval * ((u_int64_t)hz)) + 500000000) / 279 1000000000; 280 timeo += (int)nsecval; 281 } else { 282 timeo = 0; 283 } 284 error = msleep(chan, (struct mtx *)mutex, prio, wmesg, timeo); 285 return (error); 286 } 287 288 /* 289 * Get the file system info for the server. For now, just assume FFS. 290 */ 291 void 292 nfsvno_getfs(struct nfsfsinfo *sip, int isdgram) 293 { 294 int pref; 295 296 /* 297 * XXX 298 * There should be file system VFS OP(s) to get this information. 299 * For now, assume ufs. 300 */ 301 if (isdgram) 302 pref = NFS_MAXDGRAMDATA; 303 else 304 pref = NFS_SRVMAXIO; 305 sip->fs_rtmax = NFS_SRVMAXIO; 306 sip->fs_rtpref = pref; 307 sip->fs_rtmult = NFS_FABLKSIZE; 308 sip->fs_wtmax = NFS_SRVMAXIO; 309 sip->fs_wtpref = pref; 310 sip->fs_wtmult = NFS_FABLKSIZE; 311 sip->fs_dtpref = pref; 312 sip->fs_maxfilesize = 0xffffffffffffffffull; 313 sip->fs_timedelta.tv_sec = 0; 314 sip->fs_timedelta.tv_nsec = 1; 315 sip->fs_properties = (NFSV3FSINFO_LINK | 316 NFSV3FSINFO_SYMLINK | NFSV3FSINFO_HOMOGENEOUS | 317 NFSV3FSINFO_CANSETTIME); 318 } 319 320 /* 321 * Do the pathconf vnode op. 322 */ 323 int 324 nfsvno_pathconf(struct vnode *vp, int flag, long *retf, 325 struct ucred *cred, struct thread *p) 326 { 327 int error; 328 329 error = VOP_PATHCONF(vp, flag, retf); 330 if (error == EOPNOTSUPP || error == EINVAL) { 331 /* 332 * Some file systems return EINVAL for name arguments not 333 * supported and some return EOPNOTSUPP for this case. 334 * So the NFSv3 Pathconf RPC doesn't fail for these cases, 335 * just fake them. 336 */ 337 switch (flag) { 338 case _PC_LINK_MAX: 339 *retf = NFS_LINK_MAX; 340 break; 341 case _PC_NAME_MAX: 342 *retf = NAME_MAX; 343 break; 344 case _PC_CHOWN_RESTRICTED: 345 *retf = 1; 346 break; 347 case _PC_NO_TRUNC: 348 *retf = 1; 349 break; 350 default: 351 /* 352 * Only happens if a _PC_xxx is added to the server, 353 * but this isn't updated. 354 */ 355 *retf = 0; 356 printf("nfsrvd pathconf flag=%d not supp\n", flag); 357 } 358 error = 0; 359 } 360 NFSEXITCODE(error); 361 return (error); 362 } 363 364 /* Fake nfsrv_atroot. Just return 0 */ 365 int 366 nfsrv_atroot(struct vnode *vp, uint64_t *retp) 367 { 368 369 return (0); 370 } 371 372 /* 373 * Set the credentials to refer to root. 374 * If only the various BSDen could agree on whether cr_gid is a separate 375 * field or cr_groups[0]... 376 */ 377 void 378 newnfs_setroot(struct ucred *cred) 379 { 380 381 cred->cr_uid = 0; 382 cred->cr_groups[0] = 0; 383 cred->cr_ngroups = 1; 384 } 385 386 /* 387 * Get the client credential. Used for Renew and recovery. 388 */ 389 struct ucred * 390 newnfs_getcred(void) 391 { 392 struct ucred *cred; 393 struct thread *td = curthread; 394 395 cred = crdup(td->td_ucred); 396 newnfs_setroot(cred); 397 return (cred); 398 } 399 400 /* 401 * Nfs timer routine 402 * Call the nfsd's timer function once/sec. 403 */ 404 void 405 newnfs_timer(void *arg) 406 { 407 static time_t lasttime = 0; 408 /* 409 * Call the server timer, if set up. 410 * The argument indicates if it is the next second and therefore 411 * leases should be checked. 412 */ 413 if (lasttime != NFSD_MONOSEC) { 414 lasttime = NFSD_MONOSEC; 415 if (nfsd_call_servertimer != NULL) 416 (*nfsd_call_servertimer)(); 417 } 418 callout_reset(&newnfsd_callout, nfscl_ticks, newnfs_timer, NULL); 419 } 420 421 422 /* 423 * Sleep for a short period of time unless errval == NFSERR_GRACE, where 424 * the sleep should be for 5 seconds. 425 * Since lbolt doesn't exist in FreeBSD-CURRENT, just use a timeout on 426 * an event that never gets a wakeup. Only return EINTR or 0. 427 */ 428 int 429 nfs_catnap(int prio, int errval, const char *wmesg) 430 { 431 static int non_event; 432 int ret; 433 434 if (errval == NFSERR_GRACE) 435 ret = tsleep(&non_event, prio, wmesg, 5 * hz); 436 else 437 ret = tsleep(&non_event, prio, wmesg, 1); 438 if (ret != EINTR) 439 ret = 0; 440 return (ret); 441 } 442 443 /* 444 * Get referral. For now, just fail. 445 */ 446 struct nfsreferral * 447 nfsv4root_getreferral(struct vnode *vp, struct vnode *dvp, u_int32_t fileno) 448 { 449 450 return (NULL); 451 } 452 453 static int 454 nfssvc_nfscommon(struct thread *td, struct nfssvc_args *uap) 455 { 456 int error; 457 458 error = nfssvc_call(td, uap, td->td_ucred); 459 NFSEXITCODE(error); 460 return (error); 461 } 462 463 static int 464 nfssvc_call(struct thread *p, struct nfssvc_args *uap, struct ucred *cred) 465 { 466 int error = EINVAL, i, j; 467 struct nfsd_idargs nid; 468 struct nfsd_oidargs onid; 469 struct { 470 int vers; /* Just the first field of nfsstats. */ 471 } nfsstatver; 472 473 if (uap->flag & NFSSVC_IDNAME) { 474 if ((uap->flag & NFSSVC_NEWSTRUCT) != 0) 475 error = copyin(uap->argp, &nid, sizeof(nid)); 476 else { 477 error = copyin(uap->argp, &onid, sizeof(onid)); 478 if (error == 0) { 479 nid.nid_flag = onid.nid_flag; 480 nid.nid_uid = onid.nid_uid; 481 nid.nid_gid = onid.nid_gid; 482 nid.nid_usermax = onid.nid_usermax; 483 nid.nid_usertimeout = onid.nid_usertimeout; 484 nid.nid_name = onid.nid_name; 485 nid.nid_namelen = onid.nid_namelen; 486 nid.nid_ngroup = 0; 487 nid.nid_grps = NULL; 488 } 489 } 490 if (error) 491 goto out; 492 error = nfssvc_idname(&nid); 493 goto out; 494 } else if (uap->flag & NFSSVC_GETSTATS) { 495 if ((uap->flag & NFSSVC_NEWSTRUCT) == 0) { 496 /* Copy fields to the old ext_nfsstat structure. */ 497 oldnfsstats.attrcache_hits = 498 nfsstatsv1.attrcache_hits; 499 oldnfsstats.attrcache_misses = 500 nfsstatsv1.attrcache_misses; 501 oldnfsstats.lookupcache_hits = 502 nfsstatsv1.lookupcache_hits; 503 oldnfsstats.lookupcache_misses = 504 nfsstatsv1.lookupcache_misses; 505 oldnfsstats.direofcache_hits = 506 nfsstatsv1.direofcache_hits; 507 oldnfsstats.direofcache_misses = 508 nfsstatsv1.direofcache_misses; 509 oldnfsstats.accesscache_hits = 510 nfsstatsv1.accesscache_hits; 511 oldnfsstats.accesscache_misses = 512 nfsstatsv1.accesscache_misses; 513 oldnfsstats.biocache_reads = 514 nfsstatsv1.biocache_reads; 515 oldnfsstats.read_bios = 516 nfsstatsv1.read_bios; 517 oldnfsstats.read_physios = 518 nfsstatsv1.read_physios; 519 oldnfsstats.biocache_writes = 520 nfsstatsv1.biocache_writes; 521 oldnfsstats.write_bios = 522 nfsstatsv1.write_bios; 523 oldnfsstats.write_physios = 524 nfsstatsv1.write_physios; 525 oldnfsstats.biocache_readlinks = 526 nfsstatsv1.biocache_readlinks; 527 oldnfsstats.readlink_bios = 528 nfsstatsv1.readlink_bios; 529 oldnfsstats.biocache_readdirs = 530 nfsstatsv1.biocache_readdirs; 531 oldnfsstats.readdir_bios = 532 nfsstatsv1.readdir_bios; 533 for (i = 0; i < NFSV4_NPROCS; i++) 534 oldnfsstats.rpccnt[i] = nfsstatsv1.rpccnt[i]; 535 oldnfsstats.rpcretries = nfsstatsv1.rpcretries; 536 for (i = 0; i < NFSV4OP_NOPS; i++) 537 oldnfsstats.srvrpccnt[i] = 538 nfsstatsv1.srvrpccnt[i]; 539 for (i = NFSV42_NOPS, j = NFSV4OP_NOPS; 540 i < NFSV42_NOPS + NFSV4OP_FAKENOPS; i++, j++) 541 oldnfsstats.srvrpccnt[j] = 542 nfsstatsv1.srvrpccnt[i]; 543 oldnfsstats.srvrpc_errs = nfsstatsv1.srvrpc_errs; 544 oldnfsstats.srv_errs = nfsstatsv1.srv_errs; 545 oldnfsstats.rpcrequests = nfsstatsv1.rpcrequests; 546 oldnfsstats.rpctimeouts = nfsstatsv1.rpctimeouts; 547 oldnfsstats.rpcunexpected = nfsstatsv1.rpcunexpected; 548 oldnfsstats.rpcinvalid = nfsstatsv1.rpcinvalid; 549 oldnfsstats.srvcache_inproghits = 550 nfsstatsv1.srvcache_inproghits; 551 oldnfsstats.srvcache_idemdonehits = 552 nfsstatsv1.srvcache_idemdonehits; 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.srvrpc_errs = 639 nfsstatsv1.srvrpc_errs; 640 nfsstatsov1.srv_errs = 641 nfsstatsv1.srv_errs; 642 nfsstatsov1.rpcrequests = 643 nfsstatsv1.rpcrequests; 644 nfsstatsov1.rpctimeouts = 645 nfsstatsv1.rpctimeouts; 646 nfsstatsov1.rpcunexpected = 647 nfsstatsv1.rpcunexpected; 648 nfsstatsov1.rpcinvalid = 649 nfsstatsv1.rpcinvalid; 650 nfsstatsov1.srvcache_inproghits = 651 nfsstatsv1.srvcache_inproghits; 652 nfsstatsov1.srvcache_idemdonehits = 653 nfsstatsv1.srvcache_idemdonehits; 654 nfsstatsov1.srvcache_nonidemdonehits = 655 nfsstatsv1.srvcache_nonidemdonehits; 656 nfsstatsov1.srvcache_misses = 657 nfsstatsv1.srvcache_misses; 658 nfsstatsov1.srvcache_tcppeak = 659 nfsstatsv1.srvcache_tcppeak; 660 nfsstatsov1.srvcache_size = 661 nfsstatsv1.srvcache_size; 662 nfsstatsov1.srvclients = 663 nfsstatsv1.srvclients; 664 nfsstatsov1.srvopenowners = 665 nfsstatsv1.srvopenowners; 666 nfsstatsov1.srvopens = 667 nfsstatsv1.srvopens; 668 nfsstatsov1.srvlockowners = 669 nfsstatsv1.srvlockowners; 670 nfsstatsov1.srvlocks = 671 nfsstatsv1.srvlocks; 672 nfsstatsov1.srvdelegates = 673 nfsstatsv1.srvdelegates; 674 for (i = 0; i < NFSV42_CBNOPS; i++) 675 nfsstatsov1.cbrpccnt[i] = 676 nfsstatsv1.cbrpccnt[i]; 677 nfsstatsov1.clopenowners = 678 nfsstatsv1.clopenowners; 679 nfsstatsov1.clopens = 680 nfsstatsv1.clopens; 681 nfsstatsov1.cllockowners = 682 nfsstatsv1.cllockowners; 683 nfsstatsov1.cllocks = 684 nfsstatsv1.cllocks; 685 nfsstatsov1.cldelegates = 686 nfsstatsv1.cldelegates; 687 nfsstatsov1.cllocalopenowners = 688 nfsstatsv1.cllocalopenowners; 689 nfsstatsov1.cllocalopens = 690 nfsstatsv1.cllocalopens; 691 nfsstatsov1.cllocallockowners = 692 nfsstatsv1.cllocallockowners; 693 nfsstatsov1.cllocallocks = 694 nfsstatsv1.cllocallocks; 695 nfsstatsov1.srvstartcnt = 696 nfsstatsv1.srvstartcnt; 697 nfsstatsov1.srvdonecnt = 698 nfsstatsv1.srvdonecnt; 699 for (i = NFSV42_NOPS, 700 j = NFSV42_PURENOPS; 701 i < NFSV42_NOPS + NFSV4OP_FAKENOPS; 702 i++, j++) { 703 nfsstatsov1.srvbytes[j] = 704 nfsstatsv1.srvbytes[i]; 705 nfsstatsov1.srvops[j] = 706 nfsstatsv1.srvops[i]; 707 nfsstatsov1.srvduration[j] = 708 nfsstatsv1.srvduration[i]; 709 } 710 nfsstatsov1.busyfrom = 711 nfsstatsv1.busyfrom; 712 nfsstatsov1.busyfrom = 713 nfsstatsv1.busyfrom; 714 error = copyout(&nfsstatsov1, uap->argp, 715 sizeof(nfsstatsov1)); 716 } else if (nfsstatver.vers != NFSSTATS_V1) 717 error = EPERM; 718 else 719 error = copyout(&nfsstatsv1, uap->argp, 720 sizeof(nfsstatsv1)); 721 } 722 } 723 if (error == 0) { 724 if ((uap->flag & NFSSVC_ZEROCLTSTATS) != 0) { 725 nfsstatsv1.attrcache_hits = 0; 726 nfsstatsv1.attrcache_misses = 0; 727 nfsstatsv1.lookupcache_hits = 0; 728 nfsstatsv1.lookupcache_misses = 0; 729 nfsstatsv1.direofcache_hits = 0; 730 nfsstatsv1.direofcache_misses = 0; 731 nfsstatsv1.accesscache_hits = 0; 732 nfsstatsv1.accesscache_misses = 0; 733 nfsstatsv1.biocache_reads = 0; 734 nfsstatsv1.read_bios = 0; 735 nfsstatsv1.read_physios = 0; 736 nfsstatsv1.biocache_writes = 0; 737 nfsstatsv1.write_bios = 0; 738 nfsstatsv1.write_physios = 0; 739 nfsstatsv1.biocache_readlinks = 0; 740 nfsstatsv1.readlink_bios = 0; 741 nfsstatsv1.biocache_readdirs = 0; 742 nfsstatsv1.readdir_bios = 0; 743 nfsstatsv1.rpcretries = 0; 744 nfsstatsv1.rpcrequests = 0; 745 nfsstatsv1.rpctimeouts = 0; 746 nfsstatsv1.rpcunexpected = 0; 747 nfsstatsv1.rpcinvalid = 0; 748 bzero(nfsstatsv1.rpccnt, 749 sizeof(nfsstatsv1.rpccnt)); 750 } 751 if ((uap->flag & NFSSVC_ZEROSRVSTATS) != 0) { 752 nfsstatsv1.srvrpc_errs = 0; 753 nfsstatsv1.srv_errs = 0; 754 nfsstatsv1.srvcache_inproghits = 0; 755 nfsstatsv1.srvcache_idemdonehits = 0; 756 nfsstatsv1.srvcache_nonidemdonehits = 0; 757 nfsstatsv1.srvcache_misses = 0; 758 nfsstatsv1.srvcache_tcppeak = 0; 759 bzero(nfsstatsv1.srvrpccnt, 760 sizeof(nfsstatsv1.srvrpccnt)); 761 bzero(nfsstatsv1.cbrpccnt, 762 sizeof(nfsstatsv1.cbrpccnt)); 763 } 764 } 765 goto out; 766 } else if (uap->flag & NFSSVC_NFSUSERDPORT) { 767 u_short sockport; 768 struct nfsuserd_args nargs; 769 770 if ((uap->flag & NFSSVC_NEWSTRUCT) == 0) { 771 error = copyin(uap->argp, (caddr_t)&sockport, 772 sizeof (u_short)); 773 if (error == 0) { 774 nargs.nuserd_family = AF_INET; 775 nargs.nuserd_port = sockport; 776 } 777 } else { 778 /* 779 * New nfsuserd_args structure, which indicates 780 * which IP version to use along with the port#. 781 */ 782 error = copyin(uap->argp, &nargs, sizeof(nargs)); 783 } 784 if (!error) 785 error = nfsrv_nfsuserdport(&nargs, p); 786 } else if (uap->flag & NFSSVC_NFSUSERDDELPORT) { 787 nfsrv_nfsuserddelport(); 788 error = 0; 789 } 790 791 out: 792 NFSEXITCODE(error); 793 return (error); 794 } 795 796 /* 797 * called by all three modevent routines, so that it gets things 798 * initialized soon enough. 799 */ 800 void 801 newnfs_portinit(void) 802 { 803 static int inited = 0; 804 805 if (inited) 806 return; 807 inited = 1; 808 /* Initialize SMP locks used by both client and server. */ 809 mtx_init(&newnfsd_mtx, "newnfsd_mtx", NULL, MTX_DEF); 810 mtx_init(&nfs_state_mutex, "nfs_state_mutex", NULL, MTX_DEF); 811 mtx_init(&nfs_clstate_mutex, "nfs_clstate_mutex", NULL, MTX_DEF); 812 } 813 814 /* 815 * Determine if the file system supports NFSv4 ACLs. 816 * Return 1 if it does, 0 otherwise. 817 */ 818 int 819 nfs_supportsnfsv4acls(struct vnode *vp) 820 { 821 int error; 822 long retval; 823 824 ASSERT_VOP_LOCKED(vp, "nfs supports nfsv4acls"); 825 826 if (nfsrv_useacl == 0) 827 return (0); 828 error = VOP_PATHCONF(vp, _PC_ACL_NFS4, &retval); 829 if (error == 0 && retval != 0) 830 return (1); 831 return (0); 832 } 833 834 /* 835 * These are the first fields of all the context structures passed into 836 * nfs_pnfsio(). 837 */ 838 struct pnfsio { 839 int done; 840 int inprog; 841 struct task tsk; 842 }; 843 844 /* 845 * Do a mirror I/O on a pNFS thread. 846 */ 847 int 848 nfs_pnfsio(task_fn_t *func, void *context) 849 { 850 struct pnfsio *pio; 851 int ret; 852 static struct taskqueue *pnfsioq = NULL; 853 854 pio = (struct pnfsio *)context; 855 if (pnfsioq == NULL) { 856 if (nfs_pnfsiothreads == 0) 857 return (EPERM); 858 if (nfs_pnfsiothreads < 0) 859 nfs_pnfsiothreads = mp_ncpus * 4; 860 pnfsioq = taskqueue_create("pnfsioq", M_WAITOK, 861 taskqueue_thread_enqueue, &pnfsioq); 862 if (pnfsioq == NULL) 863 return (ENOMEM); 864 ret = taskqueue_start_threads(&pnfsioq, nfs_pnfsiothreads, 865 0, "pnfsiot"); 866 if (ret != 0) { 867 taskqueue_free(pnfsioq); 868 pnfsioq = NULL; 869 return (ret); 870 } 871 } 872 pio->inprog = 1; 873 TASK_INIT(&pio->tsk, 0, func, context); 874 ret = taskqueue_enqueue(pnfsioq, &pio->tsk); 875 if (ret != 0) 876 pio->inprog = 0; 877 return (ret); 878 } 879 880 extern int (*nfsd_call_nfscommon)(struct thread *, struct nfssvc_args *); 881 882 /* 883 * Called once to initialize data structures... 884 */ 885 static int 886 nfscommon_modevent(module_t mod, int type, void *data) 887 { 888 int error = 0; 889 static int loaded = 0; 890 891 switch (type) { 892 case MOD_LOAD: 893 if (loaded) 894 goto out; 895 newnfs_portinit(); 896 mtx_init(&nfs_nameid_mutex, "nfs_nameid_mutex", NULL, MTX_DEF); 897 mtx_init(&nfs_sockl_mutex, "nfs_sockl_mutex", NULL, MTX_DEF); 898 mtx_init(&nfs_slock_mutex, "nfs_slock_mutex", NULL, MTX_DEF); 899 mtx_init(&nfs_req_mutex, "nfs_req_mutex", NULL, MTX_DEF); 900 mtx_init(&nfsrv_nfsuserdsock.nr_mtx, "nfsuserd", NULL, 901 MTX_DEF); 902 mtx_init(&nfsrv_dslock_mtx, "nfs4ds", NULL, MTX_DEF); 903 TAILQ_INIT(&nfsrv_devidhead); 904 callout_init(&newnfsd_callout, 1); 905 newnfs_init(); 906 nfsd_call_nfscommon = nfssvc_nfscommon; 907 loaded = 1; 908 break; 909 910 case MOD_UNLOAD: 911 if (newnfs_numnfsd != 0 || nfsrv_nfsuserd != NOTRUNNING || 912 nfs_numnfscbd != 0) { 913 error = EBUSY; 914 break; 915 } 916 917 nfsd_call_nfscommon = NULL; 918 callout_drain(&newnfsd_callout); 919 /* Clean out the name<-->id cache. */ 920 nfsrv_cleanusergroup(); 921 /* and get rid of the mutexes */ 922 mtx_destroy(&nfs_nameid_mutex); 923 mtx_destroy(&newnfsd_mtx); 924 mtx_destroy(&nfs_state_mutex); 925 mtx_destroy(&nfs_clstate_mutex); 926 mtx_destroy(&nfs_sockl_mutex); 927 mtx_destroy(&nfs_slock_mutex); 928 mtx_destroy(&nfs_req_mutex); 929 mtx_destroy(&nfsrv_nfsuserdsock.nr_mtx); 930 mtx_destroy(&nfsrv_dslock_mtx); 931 loaded = 0; 932 break; 933 default: 934 error = EOPNOTSUPP; 935 break; 936 } 937 938 out: 939 NFSEXITCODE(error); 940 return error; 941 } 942 static moduledata_t nfscommon_mod = { 943 "nfscommon", 944 nfscommon_modevent, 945 NULL, 946 }; 947 DECLARE_MODULE(nfscommon, nfscommon_mod, SI_SUB_VFS, SI_ORDER_ANY); 948 949 /* So that loader and kldload(2) can find us, wherever we are.. */ 950 MODULE_VERSION(nfscommon, 1); 951 MODULE_DEPEND(nfscommon, nfssvc, 1, 1, 1); 952 MODULE_DEPEND(nfscommon, krpc, 1, 1, 1); 953 954