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