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 void (*nfsd_call_recall)(struct vnode *, int, struct ucred *, 60 struct thread *); 61 extern int nfsrv_useacl; 62 int newnfs_numnfsd = 0; 63 struct nfsstatsv1 nfsstatsv1; 64 int nfs_numnfscbd = 0; 65 int nfscl_debuglevel = 0; 66 char nfsv4_callbackaddr[INET6_ADDRSTRLEN]; 67 int nfsrv_lughashsize = 100; 68 struct mtx nfsrv_dslock_mtx; 69 struct nfsdevicehead nfsrv_devidhead; 70 volatile int nfsrv_devidcnt = 0; 71 void (*ncl_call_invalcaches)(struct vnode *) = NULL; 72 vop_advlock_t *nfs_advlock_p = NULL; 73 vop_reclaim_t *nfs_reclaim_p = NULL; 74 uint32_t nfs_srvmaxio = NFS_SRVMAXIO; 75 76 NFSD_VNET_DEFINE(struct nfsstatsv1 *, nfsstatsv1_p); 77 78 NFSD_VNET_DECLARE(struct nfssockreq, nfsrv_nfsuserdsock); 79 NFSD_VNET_DECLARE(nfsuserd_state, nfsrv_nfsuserd); 80 81 int nfs_pnfsio(task_fn_t *, void *); 82 83 static int nfs_realign_test; 84 static int nfs_realign_count; 85 static struct ext_nfsstats oldnfsstats; 86 static struct nfsstatsov1 nfsstatsov1; 87 88 SYSCTL_NODE(_vfs, OID_AUTO, nfs, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 89 "NFS filesystem"); 90 SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_test, CTLFLAG_RW, &nfs_realign_test, 91 0, "Number of realign tests done"); 92 SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_count, CTLFLAG_RW, &nfs_realign_count, 93 0, "Number of mbuf realignments done"); 94 SYSCTL_STRING(_vfs_nfs, OID_AUTO, callback_addr, CTLFLAG_RW, 95 nfsv4_callbackaddr, sizeof(nfsv4_callbackaddr), 96 "NFSv4 callback addr for server to use"); 97 SYSCTL_INT(_vfs_nfs, OID_AUTO, debuglevel, CTLFLAG_RW, &nfscl_debuglevel, 98 0, "Debug level for NFS client"); 99 SYSCTL_INT(_vfs_nfs, OID_AUTO, userhashsize, CTLFLAG_RDTUN, &nfsrv_lughashsize, 100 0, "Size of hash tables for uid/name mapping"); 101 int nfs_pnfsiothreads = -1; 102 SYSCTL_INT(_vfs_nfs, OID_AUTO, pnfsiothreads, CTLFLAG_RW, &nfs_pnfsiothreads, 103 0, "Number of pNFS mirror I/O threads"); 104 105 /* 106 * Defines for malloc 107 * (Here for FreeBSD, since they allocate storage.) 108 */ 109 MALLOC_DEFINE(M_NEWNFSRVCACHE, "NFSD srvcache", "NFSD Server Request Cache"); 110 MALLOC_DEFINE(M_NEWNFSDCLIENT, "NFSD V4client", "NFSD V4 Client Id"); 111 MALLOC_DEFINE(M_NEWNFSDSTATE, "NFSD V4state", 112 "NFSD V4 State (Openowner, Open, Lockowner, Delegation"); 113 MALLOC_DEFINE(M_NEWNFSDLOCK, "NFSD V4lock", "NFSD V4 byte range lock"); 114 MALLOC_DEFINE(M_NEWNFSDLOCKFILE, "NFSD lckfile", "NFSD Open/Lock file"); 115 MALLOC_DEFINE(M_NEWNFSSTRING, "NFSD string", "NFSD V4 long string"); 116 MALLOC_DEFINE(M_NEWNFSUSERGROUP, "NFSD usrgroup", "NFSD V4 User/group map"); 117 MALLOC_DEFINE(M_NEWNFSDREQ, "NFS req", "NFS request header"); 118 MALLOC_DEFINE(M_NEWNFSFH, "NFS fh", "NFS file handle"); 119 MALLOC_DEFINE(M_NEWNFSCLOWNER, "NFSCL owner", "NFSCL Open Owner"); 120 MALLOC_DEFINE(M_NEWNFSCLOPEN, "NFSCL open", "NFSCL Open"); 121 MALLOC_DEFINE(M_NEWNFSCLDELEG, "NFSCL deleg", "NFSCL Delegation"); 122 MALLOC_DEFINE(M_NEWNFSCLCLIENT, "NFSCL client", "NFSCL Client"); 123 MALLOC_DEFINE(M_NEWNFSCLLOCKOWNER, "NFSCL lckown", "NFSCL Lock Owner"); 124 MALLOC_DEFINE(M_NEWNFSCLLOCK, "NFSCL lck", "NFSCL Lock"); 125 MALLOC_DEFINE(M_NEWNFSV4NODE, "NEWNFSnode", "NFS vnode"); 126 MALLOC_DEFINE(M_NEWNFSDIRECTIO, "NEWdirectio", "NFS Direct IO buffer"); 127 MALLOC_DEFINE(M_NEWNFSDIROFF, "NFSCL diroff", 128 "NFS directory offset data"); 129 MALLOC_DEFINE(M_NEWNFSDROLLBACK, "NFSD rollback", 130 "NFS local lock rollback"); 131 MALLOC_DEFINE(M_NEWNFSLAYOUT, "NFSCL layout", "NFSv4.1 Layout"); 132 MALLOC_DEFINE(M_NEWNFSFLAYOUT, "NFSCL flayout", "NFSv4.1 File Layout"); 133 MALLOC_DEFINE(M_NEWNFSDEVINFO, "NFSCL devinfo", "NFSv4.1 Device Info"); 134 MALLOC_DEFINE(M_NEWNFSSOCKREQ, "NFSCL sockreq", "NFS Sock Req"); 135 MALLOC_DEFINE(M_NEWNFSCLDS, "NFSCL session", "NFSv4.1 Session"); 136 MALLOC_DEFINE(M_NEWNFSLAYRECALL, "NFSCL layrecall", "NFSv4.1 Layout Recall"); 137 MALLOC_DEFINE(M_NEWNFSDSESSION, "NFSD session", "NFSD Session for a client"); 138 139 /* 140 * Definition of mutex locks. 141 * newnfsd_mtx is used in nfsrvd_nfsd() to protect the nfs socket list 142 * and assorted other nfsd structures. 143 */ 144 struct mtx newnfsd_mtx; 145 struct mtx nfs_sockl_mutex; 146 struct mtx nfs_state_mutex; 147 struct mtx nfs_nameid_mutex; 148 struct mtx nfs_req_mutex; 149 struct mtx nfs_slock_mutex; 150 struct mtx nfs_clstate_mutex; 151 152 /* local functions */ 153 static int nfssvc_call(struct thread *, struct nfssvc_args *, struct ucred *); 154 static void nfs_clean(struct prison *); 155 156 #ifdef __NO_STRICT_ALIGNMENT 157 /* 158 * These architectures don't need re-alignment, so just return. 159 */ 160 int 161 newnfs_realign(struct mbuf **pm, int how) 162 { 163 164 return (0); 165 } 166 #else /* !__NO_STRICT_ALIGNMENT */ 167 /* 168 * newnfs_realign: 169 * 170 * Check for badly aligned mbuf data and realign by copying the unaligned 171 * portion of the data into a new mbuf chain and freeing the portions 172 * of the old chain that were replaced. 173 * 174 * We cannot simply realign the data within the existing mbuf chain 175 * because the underlying buffers may contain other rpc commands and 176 * we cannot afford to overwrite them. 177 * 178 * We would prefer to avoid this situation entirely. The situation does 179 * not occur with NFS/UDP and is supposed to only occasionally occur 180 * with TCP. Use vfs.nfs.realign_count and realign_test to check this. 181 * 182 */ 183 int 184 newnfs_realign(struct mbuf **pm, int how) 185 { 186 struct mbuf *m, *n; 187 int off, space; 188 189 ++nfs_realign_test; 190 while ((m = *pm) != NULL) { 191 if ((m->m_len & 0x3) || (mtod(m, intptr_t) & 0x3)) { 192 /* 193 * NB: we can't depend on m_pkthdr.len to help us 194 * decide what to do here. May not be worth doing 195 * the m_length calculation as m_copyback will 196 * expand the mbuf chain below as needed. 197 */ 198 space = m_length(m, NULL); 199 if (space >= MINCLSIZE) { 200 /* NB: m_copyback handles space > MCLBYTES */ 201 n = m_getcl(how, MT_DATA, 0); 202 } else 203 n = m_get(how, MT_DATA); 204 if (n == NULL) 205 return (ENOMEM); 206 /* 207 * Align the remainder of the mbuf chain. 208 */ 209 n->m_len = 0; 210 off = 0; 211 while (m != NULL) { 212 m_copyback(n, off, m->m_len, mtod(m, caddr_t)); 213 off += m->m_len; 214 m = m->m_next; 215 } 216 m_freem(*pm); 217 *pm = n; 218 ++nfs_realign_count; 219 break; 220 } 221 pm = &m->m_next; 222 } 223 224 return (0); 225 } 226 #endif /* __NO_STRICT_ALIGNMENT */ 227 228 #ifdef notdef 229 static void 230 nfsrv_object_create(struct vnode *vp, struct thread *td) 231 { 232 233 if (vp == NULL || vp->v_type != VREG) 234 return; 235 (void) vfs_object_create(vp, td, td->td_ucred); 236 } 237 #endif 238 239 /* 240 * Look up a file name. Basically just initialize stuff and call namei(). 241 */ 242 int 243 nfsrv_lookupfilename(struct nameidata *ndp, char *fname, NFSPROC_T *p __unused) 244 { 245 int error; 246 247 NDINIT(ndp, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, fname); 248 error = namei(ndp); 249 if (!error) { 250 NDFREE_PNBUF(ndp); 251 } 252 return (error); 253 } 254 255 /* 256 * Copy NFS uid, gids to the cred structure. 257 */ 258 void 259 newnfs_copycred(struct nfscred *nfscr, struct ucred *cr) 260 { 261 262 KASSERT(nfscr->nfsc_ngroups >= 0, 263 ("newnfs_copycred: negative nfsc_ngroups")); 264 cr->cr_uid = nfscr->nfsc_uid; 265 crsetgroups(cr, nfscr->nfsc_ngroups, nfscr->nfsc_groups); 266 } 267 268 /* 269 * Map args from nfsmsleep() to msleep(). 270 */ 271 int 272 nfsmsleep(void *chan, void *mutex, int prio, const char *wmesg, 273 struct timespec *ts) 274 { 275 u_int64_t nsecval; 276 int error, timeo; 277 278 if (ts) { 279 timeo = hz * ts->tv_sec; 280 nsecval = (u_int64_t)ts->tv_nsec; 281 nsecval = ((nsecval * ((u_int64_t)hz)) + 500000000) / 282 1000000000; 283 timeo += (int)nsecval; 284 } else { 285 timeo = 0; 286 } 287 error = msleep(chan, (struct mtx *)mutex, prio, wmesg, timeo); 288 return (error); 289 } 290 291 /* 292 * Get the file system info for the server. For now, just assume FFS. 293 */ 294 void 295 nfsvno_getfs(struct nfsfsinfo *sip, int isdgram) 296 { 297 int pref; 298 299 /* 300 * XXX 301 * There should be file system VFS OP(s) to get this information. 302 * For now, assume ufs. 303 */ 304 if (isdgram) 305 pref = NFS_MAXDGRAMDATA; 306 else 307 pref = nfs_srvmaxio; 308 sip->fs_rtmax = nfs_srvmaxio; 309 sip->fs_rtpref = pref; 310 sip->fs_rtmult = NFS_FABLKSIZE; 311 sip->fs_wtmax = nfs_srvmaxio; 312 sip->fs_wtpref = pref; 313 sip->fs_wtmult = NFS_FABLKSIZE; 314 sip->fs_dtpref = pref; 315 sip->fs_maxfilesize = 0xffffffffffffffffull; 316 sip->fs_timedelta.tv_sec = 0; 317 sip->fs_timedelta.tv_nsec = 1; 318 sip->fs_properties = (NFSV3FSINFO_LINK | 319 NFSV3FSINFO_SYMLINK | NFSV3FSINFO_HOMOGENEOUS | 320 NFSV3FSINFO_CANSETTIME); 321 } 322 323 /* 324 * Do the pathconf vnode op. 325 */ 326 int 327 nfsvno_pathconf(struct vnode *vp, int flag, long *retf, 328 struct ucred *cred, struct thread *p) 329 { 330 int error; 331 332 error = VOP_PATHCONF(vp, flag, retf); 333 if (error == EOPNOTSUPP || error == EINVAL) { 334 /* 335 * Some file systems return EINVAL for name arguments not 336 * supported and some return EOPNOTSUPP for this case. 337 * So the NFSv3 Pathconf RPC doesn't fail for these cases, 338 * just fake them. 339 */ 340 switch (flag) { 341 case _PC_LINK_MAX: 342 *retf = NFS_LINK_MAX; 343 break; 344 case _PC_NAME_MAX: 345 *retf = NAME_MAX; 346 break; 347 case _PC_CHOWN_RESTRICTED: 348 *retf = 1; 349 break; 350 case _PC_NO_TRUNC: 351 *retf = 1; 352 break; 353 default: 354 /* 355 * Only happens if a _PC_xxx is added to the server, 356 * but this isn't updated. 357 */ 358 *retf = 0; 359 printf("nfsrvd pathconf flag=%d not supp\n", flag); 360 } 361 error = 0; 362 } 363 NFSEXITCODE(error); 364 return (error); 365 } 366 367 /* Fake nfsrv_atroot. Just return 0 */ 368 int 369 nfsrv_atroot(struct vnode *vp, uint64_t *retp) 370 { 371 372 return (0); 373 } 374 375 /* 376 * Set the credentials to refer to root. 377 * If only the various BSDen could agree on whether cr_gid is a separate 378 * field or cr_groups[0]... 379 */ 380 void 381 newnfs_setroot(struct ucred *cred) 382 { 383 384 cred->cr_uid = 0; 385 cred->cr_groups[0] = 0; 386 cred->cr_ngroups = 1; 387 } 388 389 /* 390 * Get the client credential. Used for Renew and recovery. 391 */ 392 struct ucred * 393 newnfs_getcred(void) 394 { 395 struct ucred *cred; 396 struct thread *td = curthread; 397 398 cred = crdup(td->td_ucred); 399 newnfs_setroot(cred); 400 return (cred); 401 } 402 403 /* 404 * Sleep for a short period of time unless errval == NFSERR_GRACE, where 405 * the sleep should be for 5 seconds. 406 * Since lbolt doesn't exist in FreeBSD-CURRENT, just use a timeout on 407 * an event that never gets a wakeup. Only return EINTR or 0. 408 */ 409 int 410 nfs_catnap(int prio, int errval, const char *wmesg) 411 { 412 static int non_event; 413 int ret; 414 415 if (errval == NFSERR_GRACE) 416 ret = tsleep(&non_event, prio, wmesg, 5 * hz); 417 else 418 ret = tsleep(&non_event, prio, wmesg, 1); 419 if (ret != EINTR) 420 ret = 0; 421 return (ret); 422 } 423 424 /* 425 * Get referral. For now, just fail. 426 */ 427 struct nfsreferral * 428 nfsv4root_getreferral(struct vnode *vp, struct vnode *dvp, u_int32_t fileno) 429 { 430 431 return (NULL); 432 } 433 434 static int 435 nfssvc_nfscommon(struct thread *td, struct nfssvc_args *uap) 436 { 437 int error; 438 439 NFSD_CURVNET_SET(NFSD_TD_TO_VNET(td)); 440 error = nfssvc_call(td, uap, td->td_ucred); 441 NFSD_CURVNET_RESTORE(); 442 NFSEXITCODE(error); 443 return (error); 444 } 445 446 static int 447 nfssvc_call(struct thread *p, struct nfssvc_args *uap, struct ucred *cred) 448 { 449 int error = EINVAL, i, j; 450 struct nfsd_idargs nid; 451 struct nfsd_oidargs onid; 452 struct { 453 int vers; /* Just the first field of nfsstats. */ 454 } nfsstatver; 455 456 if (uap->flag & NFSSVC_IDNAME) { 457 if ((uap->flag & NFSSVC_NEWSTRUCT) != 0) 458 error = copyin(uap->argp, &nid, sizeof(nid)); 459 else { 460 error = copyin(uap->argp, &onid, sizeof(onid)); 461 if (error == 0) { 462 nid.nid_flag = onid.nid_flag; 463 nid.nid_uid = onid.nid_uid; 464 nid.nid_gid = onid.nid_gid; 465 nid.nid_usermax = onid.nid_usermax; 466 nid.nid_usertimeout = onid.nid_usertimeout; 467 nid.nid_name = onid.nid_name; 468 nid.nid_namelen = onid.nid_namelen; 469 nid.nid_ngroup = 0; 470 nid.nid_grps = NULL; 471 } 472 } 473 if (error) 474 goto out; 475 error = nfssvc_idname(&nid); 476 goto out; 477 } else if (uap->flag & NFSSVC_GETSTATS) { 478 if ((uap->flag & NFSSVC_NEWSTRUCT) == 0) { 479 /* Copy fields to the old ext_nfsstat structure. */ 480 oldnfsstats.attrcache_hits = 481 NFSD_VNET(nfsstatsv1_p)->attrcache_hits; 482 oldnfsstats.attrcache_misses = 483 NFSD_VNET(nfsstatsv1_p)->attrcache_misses; 484 oldnfsstats.lookupcache_hits = 485 NFSD_VNET(nfsstatsv1_p)->lookupcache_hits; 486 oldnfsstats.lookupcache_misses = 487 NFSD_VNET(nfsstatsv1_p)->lookupcache_misses; 488 oldnfsstats.direofcache_hits = 489 NFSD_VNET(nfsstatsv1_p)->direofcache_hits; 490 oldnfsstats.direofcache_misses = 491 NFSD_VNET(nfsstatsv1_p)->direofcache_misses; 492 oldnfsstats.accesscache_hits = 493 NFSD_VNET(nfsstatsv1_p)->accesscache_hits; 494 oldnfsstats.accesscache_misses = 495 NFSD_VNET(nfsstatsv1_p)->accesscache_misses; 496 oldnfsstats.biocache_reads = 497 NFSD_VNET(nfsstatsv1_p)->biocache_reads; 498 oldnfsstats.read_bios = 499 NFSD_VNET(nfsstatsv1_p)->read_bios; 500 oldnfsstats.read_physios = 501 NFSD_VNET(nfsstatsv1_p)->read_physios; 502 oldnfsstats.biocache_writes = 503 NFSD_VNET(nfsstatsv1_p)->biocache_writes; 504 oldnfsstats.write_bios = 505 NFSD_VNET(nfsstatsv1_p)->write_bios; 506 oldnfsstats.write_physios = 507 NFSD_VNET(nfsstatsv1_p)->write_physios; 508 oldnfsstats.biocache_readlinks = 509 NFSD_VNET(nfsstatsv1_p)->biocache_readlinks; 510 oldnfsstats.readlink_bios = 511 NFSD_VNET(nfsstatsv1_p)->readlink_bios; 512 oldnfsstats.biocache_readdirs = 513 NFSD_VNET(nfsstatsv1_p)->biocache_readdirs; 514 oldnfsstats.readdir_bios = 515 NFSD_VNET(nfsstatsv1_p)->readdir_bios; 516 for (i = 0; i < NFSV4_NPROCS; i++) 517 oldnfsstats.rpccnt[i] = 518 NFSD_VNET(nfsstatsv1_p)->rpccnt[i]; 519 oldnfsstats.rpcretries = 520 NFSD_VNET(nfsstatsv1_p)->rpcretries; 521 for (i = 0; i < NFSV4OP_NOPS; i++) 522 oldnfsstats.srvrpccnt[i] = 523 NFSD_VNET(nfsstatsv1_p)->srvrpccnt[i]; 524 for (i = NFSV42_NOPS, j = NFSV4OP_NOPS; 525 i < NFSV42_NOPS + NFSV4OP_FAKENOPS; i++, j++) 526 oldnfsstats.srvrpccnt[j] = 527 NFSD_VNET(nfsstatsv1_p)->srvrpccnt[i]; 528 oldnfsstats.reserved_0 = 0; 529 oldnfsstats.reserved_1 = 0; 530 oldnfsstats.rpcrequests = 531 NFSD_VNET(nfsstatsv1_p)->rpcrequests; 532 oldnfsstats.rpctimeouts = 533 NFSD_VNET(nfsstatsv1_p)->rpctimeouts; 534 oldnfsstats.rpcunexpected = 535 NFSD_VNET(nfsstatsv1_p)->rpcunexpected; 536 oldnfsstats.rpcinvalid = 537 NFSD_VNET(nfsstatsv1_p)->rpcinvalid; 538 oldnfsstats.srvcache_inproghits = 539 NFSD_VNET(nfsstatsv1_p)->srvcache_inproghits; 540 oldnfsstats.reserved_2 = 0; 541 oldnfsstats.srvcache_nonidemdonehits = 542 NFSD_VNET(nfsstatsv1_p)->srvcache_nonidemdonehits; 543 oldnfsstats.srvcache_misses = 544 NFSD_VNET(nfsstatsv1_p)->srvcache_misses; 545 oldnfsstats.srvcache_tcppeak = 546 NFSD_VNET(nfsstatsv1_p)->srvcache_tcppeak; 547 oldnfsstats.srvcache_size = 548 NFSD_VNET(nfsstatsv1_p)->srvcache_size; 549 oldnfsstats.srvclients = 550 NFSD_VNET(nfsstatsv1_p)->srvclients; 551 oldnfsstats.srvopenowners = 552 NFSD_VNET(nfsstatsv1_p)->srvopenowners; 553 oldnfsstats.srvopens = 554 NFSD_VNET(nfsstatsv1_p)->srvopens; 555 oldnfsstats.srvlockowners = 556 NFSD_VNET(nfsstatsv1_p)->srvlockowners; 557 oldnfsstats.srvlocks = 558 NFSD_VNET(nfsstatsv1_p)->srvlocks; 559 oldnfsstats.srvdelegates = 560 NFSD_VNET(nfsstatsv1_p)->srvdelegates; 561 for (i = 0; i < NFSV4OP_CBNOPS; i++) 562 oldnfsstats.cbrpccnt[i] = 563 NFSD_VNET(nfsstatsv1_p)->cbrpccnt[i]; 564 oldnfsstats.clopenowners = 565 NFSD_VNET(nfsstatsv1_p)->clopenowners; 566 oldnfsstats.clopens = NFSD_VNET(nfsstatsv1_p)->clopens; 567 oldnfsstats.cllockowners = 568 NFSD_VNET(nfsstatsv1_p)->cllockowners; 569 oldnfsstats.cllocks = NFSD_VNET(nfsstatsv1_p)->cllocks; 570 oldnfsstats.cldelegates = 571 NFSD_VNET(nfsstatsv1_p)->cldelegates; 572 oldnfsstats.cllocalopenowners = 573 NFSD_VNET(nfsstatsv1_p)->cllocalopenowners; 574 oldnfsstats.cllocalopens = 575 NFSD_VNET(nfsstatsv1_p)->cllocalopens; 576 oldnfsstats.cllocallockowners = 577 NFSD_VNET(nfsstatsv1_p)->cllocallockowners; 578 oldnfsstats.cllocallocks = 579 NFSD_VNET(nfsstatsv1_p)->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 NFSD_VNET(nfsstatsv1_p)->attrcache_hits; 590 nfsstatsov1.attrcache_misses = 591 NFSD_VNET(nfsstatsv1_p)->attrcache_misses; 592 nfsstatsov1.lookupcache_hits = 593 NFSD_VNET(nfsstatsv1_p)->lookupcache_hits; 594 nfsstatsov1.lookupcache_misses = 595 NFSD_VNET(nfsstatsv1_p)->lookupcache_misses; 596 nfsstatsov1.direofcache_hits = 597 NFSD_VNET(nfsstatsv1_p)->direofcache_hits; 598 nfsstatsov1.direofcache_misses = 599 NFSD_VNET(nfsstatsv1_p)->direofcache_misses; 600 nfsstatsov1.accesscache_hits = 601 NFSD_VNET(nfsstatsv1_p)->accesscache_hits; 602 nfsstatsov1.accesscache_misses = 603 NFSD_VNET(nfsstatsv1_p)->accesscache_misses; 604 nfsstatsov1.biocache_reads = 605 NFSD_VNET(nfsstatsv1_p)->biocache_reads; 606 nfsstatsov1.read_bios = 607 NFSD_VNET(nfsstatsv1_p)->read_bios; 608 nfsstatsov1.read_physios = 609 NFSD_VNET(nfsstatsv1_p)->read_physios; 610 nfsstatsov1.biocache_writes = 611 NFSD_VNET(nfsstatsv1_p)->biocache_writes; 612 nfsstatsov1.write_bios = 613 NFSD_VNET(nfsstatsv1_p)->write_bios; 614 nfsstatsov1.write_physios = 615 NFSD_VNET(nfsstatsv1_p)->write_physios; 616 nfsstatsov1.biocache_readlinks = 617 NFSD_VNET(nfsstatsv1_p)->biocache_readlinks; 618 nfsstatsov1.readlink_bios = 619 NFSD_VNET(nfsstatsv1_p)->readlink_bios; 620 nfsstatsov1.biocache_readdirs = 621 NFSD_VNET(nfsstatsv1_p)->biocache_readdirs; 622 nfsstatsov1.readdir_bios = 623 NFSD_VNET(nfsstatsv1_p)->readdir_bios; 624 for (i = 0; i < NFSV42_OLDNPROCS; i++) 625 nfsstatsov1.rpccnt[i] = 626 NFSD_VNET(nfsstatsv1_p)->rpccnt[i]; 627 nfsstatsov1.rpcretries = 628 NFSD_VNET(nfsstatsv1_p)->rpcretries; 629 for (i = 0; i < NFSV42_PURENOPS; i++) 630 nfsstatsov1.srvrpccnt[i] = 631 NFSD_VNET(nfsstatsv1_p)->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 NFSD_VNET(nfsstatsv1_p)->srvrpccnt[i]; 638 nfsstatsov1.reserved_0 = 0; 639 nfsstatsov1.reserved_1 = 0; 640 nfsstatsov1.rpcrequests = 641 NFSD_VNET(nfsstatsv1_p)->rpcrequests; 642 nfsstatsov1.rpctimeouts = 643 NFSD_VNET(nfsstatsv1_p)->rpctimeouts; 644 nfsstatsov1.rpcunexpected = 645 NFSD_VNET(nfsstatsv1_p)->rpcunexpected; 646 nfsstatsov1.rpcinvalid = 647 NFSD_VNET(nfsstatsv1_p)->rpcinvalid; 648 nfsstatsov1.srvcache_inproghits = 649 NFSD_VNET(nfsstatsv1_p)->srvcache_inproghits; 650 nfsstatsov1.reserved_2 = 0; 651 nfsstatsov1.srvcache_nonidemdonehits = 652 NFSD_VNET(nfsstatsv1_p)->srvcache_nonidemdonehits; 653 nfsstatsov1.srvcache_misses = 654 NFSD_VNET(nfsstatsv1_p)->srvcache_misses; 655 nfsstatsov1.srvcache_tcppeak = 656 NFSD_VNET(nfsstatsv1_p)->srvcache_tcppeak; 657 nfsstatsov1.srvcache_size = 658 NFSD_VNET(nfsstatsv1_p)->srvcache_size; 659 nfsstatsov1.srvclients = 660 NFSD_VNET(nfsstatsv1_p)->srvclients; 661 nfsstatsov1.srvopenowners = 662 NFSD_VNET(nfsstatsv1_p)->srvopenowners; 663 nfsstatsov1.srvopens = 664 NFSD_VNET(nfsstatsv1_p)->srvopens; 665 nfsstatsov1.srvlockowners = 666 NFSD_VNET(nfsstatsv1_p)->srvlockowners; 667 nfsstatsov1.srvlocks = 668 NFSD_VNET(nfsstatsv1_p)->srvlocks; 669 nfsstatsov1.srvdelegates = 670 NFSD_VNET(nfsstatsv1_p)->srvdelegates; 671 for (i = 0; i < NFSV42_CBNOPS; i++) 672 nfsstatsov1.cbrpccnt[i] = 673 NFSD_VNET(nfsstatsv1_p)->cbrpccnt[i]; 674 nfsstatsov1.clopenowners = 675 NFSD_VNET(nfsstatsv1_p)->clopenowners; 676 nfsstatsov1.clopens = 677 NFSD_VNET(nfsstatsv1_p)->clopens; 678 nfsstatsov1.cllockowners = 679 NFSD_VNET(nfsstatsv1_p)->cllockowners; 680 nfsstatsov1.cllocks = 681 NFSD_VNET(nfsstatsv1_p)->cllocks; 682 nfsstatsov1.cldelegates = 683 NFSD_VNET(nfsstatsv1_p)->cldelegates; 684 nfsstatsov1.cllocalopenowners = 685 NFSD_VNET(nfsstatsv1_p)->cllocalopenowners; 686 nfsstatsov1.cllocalopens = 687 NFSD_VNET(nfsstatsv1_p)->cllocalopens; 688 nfsstatsov1.cllocallockowners = 689 NFSD_VNET(nfsstatsv1_p)->cllocallockowners; 690 nfsstatsov1.cllocallocks = 691 NFSD_VNET(nfsstatsv1_p)->cllocallocks; 692 nfsstatsov1.srvstartcnt = 693 NFSD_VNET(nfsstatsv1_p)->srvstartcnt; 694 nfsstatsov1.srvdonecnt = 695 NFSD_VNET(nfsstatsv1_p)->srvdonecnt; 696 for (i = NFSV42_NOPS, 697 j = NFSV42_PURENOPS; 698 i < NFSV42_NOPS + NFSV4OP_FAKENOPS; 699 i++, j++) { 700 nfsstatsov1.srvbytes[j] = 701 NFSD_VNET(nfsstatsv1_p)->srvbytes[i]; 702 nfsstatsov1.srvops[j] = 703 NFSD_VNET(nfsstatsv1_p)->srvops[i]; 704 nfsstatsov1.srvduration[j] = 705 NFSD_VNET(nfsstatsv1_p)->srvduration[i]; 706 } 707 nfsstatsov1.busyfrom = 708 NFSD_VNET(nfsstatsv1_p)->busyfrom; 709 nfsstatsov1.busyfrom = 710 NFSD_VNET(nfsstatsv1_p)->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(NFSD_VNET(nfsstatsv1_p), 717 uap->argp, sizeof(nfsstatsv1)); 718 } 719 } 720 if (error == 0) { 721 if ((uap->flag & NFSSVC_ZEROCLTSTATS) != 0) { 722 NFSD_VNET(nfsstatsv1_p)->attrcache_hits = 0; 723 NFSD_VNET(nfsstatsv1_p)->attrcache_misses = 0; 724 NFSD_VNET(nfsstatsv1_p)->lookupcache_hits = 0; 725 NFSD_VNET(nfsstatsv1_p)->lookupcache_misses = 0; 726 NFSD_VNET(nfsstatsv1_p)->direofcache_hits = 0; 727 NFSD_VNET(nfsstatsv1_p)->direofcache_misses = 0; 728 NFSD_VNET(nfsstatsv1_p)->accesscache_hits = 0; 729 NFSD_VNET(nfsstatsv1_p)->accesscache_misses = 0; 730 NFSD_VNET(nfsstatsv1_p)->biocache_reads = 0; 731 NFSD_VNET(nfsstatsv1_p)->read_bios = 0; 732 NFSD_VNET(nfsstatsv1_p)->read_physios = 0; 733 NFSD_VNET(nfsstatsv1_p)->biocache_writes = 0; 734 NFSD_VNET(nfsstatsv1_p)->write_bios = 0; 735 NFSD_VNET(nfsstatsv1_p)->write_physios = 0; 736 NFSD_VNET(nfsstatsv1_p)->biocache_readlinks = 0; 737 NFSD_VNET(nfsstatsv1_p)->readlink_bios = 0; 738 NFSD_VNET(nfsstatsv1_p)->biocache_readdirs = 0; 739 NFSD_VNET(nfsstatsv1_p)->readdir_bios = 0; 740 NFSD_VNET(nfsstatsv1_p)->rpcretries = 0; 741 NFSD_VNET(nfsstatsv1_p)->rpcrequests = 0; 742 NFSD_VNET(nfsstatsv1_p)->rpctimeouts = 0; 743 NFSD_VNET(nfsstatsv1_p)->rpcunexpected = 0; 744 NFSD_VNET(nfsstatsv1_p)->rpcinvalid = 0; 745 bzero(NFSD_VNET(nfsstatsv1_p)->rpccnt, 746 sizeof(NFSD_VNET(nfsstatsv1_p)->rpccnt)); 747 } 748 if ((uap->flag & NFSSVC_ZEROSRVSTATS) != 0) { 749 NFSD_VNET(nfsstatsv1_p)->srvcache_inproghits = 0; 750 NFSD_VNET(nfsstatsv1_p)->srvcache_nonidemdonehits = 0; 751 NFSD_VNET(nfsstatsv1_p)->srvcache_misses = 0; 752 NFSD_VNET(nfsstatsv1_p)->srvcache_tcppeak = 0; 753 bzero(NFSD_VNET(nfsstatsv1_p)->srvrpccnt, 754 sizeof(NFSD_VNET(nfsstatsv1_p)->srvrpccnt)); 755 bzero(NFSD_VNET(nfsstatsv1_p)->cbrpccnt, 756 sizeof(NFSD_VNET(nfsstatsv1_p)->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 static void 875 nfs_clean(struct prison *pr) 876 { 877 878 NFSD_CURVNET_SET(pr->pr_vnet); 879 mtx_destroy(&NFSD_VNET(nfsrv_nfsuserdsock).nr_mtx); 880 if (pr != &prison0) 881 free(NFSD_VNET(nfsstatsv1_p), M_TEMP); 882 /* Clean out the name<-->id cache. */ 883 nfsrv_cleanusergroup(); 884 NFSD_CURVNET_RESTORE(); 885 } 886 887 /* 888 * Initialize everything that needs to be initialized for a vnet. 889 */ 890 static void 891 nfs_vnetinit(const void *unused __unused) 892 { 893 894 if (curthread->td_ucred->cr_prison == &prison0) 895 NFSD_VNET(nfsstatsv1_p) = &nfsstatsv1; 896 else 897 NFSD_VNET(nfsstatsv1_p) = malloc(sizeof(struct nfsstatsv1), 898 M_TEMP, M_WAITOK | M_ZERO); 899 mtx_init(&NFSD_VNET(nfsrv_nfsuserdsock).nr_mtx, "nfsuserd", 900 NULL, MTX_DEF); 901 } 902 SYSINIT(nfs_vnetinit, SI_SUB_VNET_DONE, SI_ORDER_ANY, 903 nfs_vnetinit, NULL); 904 905 extern int (*nfsd_call_nfscommon)(struct thread *, struct nfssvc_args *); 906 907 /* 908 * Called once to initialize data structures... 909 */ 910 static int 911 nfscommon_modevent(module_t mod, int type, void *data) 912 { 913 int error = 0; 914 static int loaded = 0; 915 916 switch (type) { 917 case MOD_LOAD: 918 if (loaded) 919 goto out; 920 newnfs_portinit(); 921 mtx_init(&nfs_nameid_mutex, "nfs_nameid_mutex", NULL, MTX_DEF); 922 mtx_init(&nfs_sockl_mutex, "nfs_sockl_mutex", NULL, MTX_DEF); 923 mtx_init(&nfs_slock_mutex, "nfs_slock_mutex", NULL, MTX_DEF); 924 mtx_init(&nfs_req_mutex, "nfs_req_mutex", NULL, MTX_DEF); 925 mtx_init(&nfsrv_dslock_mtx, "nfs4ds", NULL, MTX_DEF); 926 TAILQ_INIT(&nfsrv_devidhead); 927 newnfs_init(); 928 nfsd_call_nfscommon = nfssvc_nfscommon; 929 loaded = 1; 930 break; 931 932 case MOD_UNLOAD: 933 if (newnfs_numnfsd != 0 || 934 NFSD_VNET(nfsrv_nfsuserd) != NOTRUNNING || 935 nfs_numnfscbd != 0) { 936 error = EBUSY; 937 break; 938 } 939 940 nfsd_call_nfscommon = NULL; 941 nfs_clean(&prison0); 942 /* and get rid of the mutexes */ 943 mtx_destroy(&nfs_nameid_mutex); 944 mtx_destroy(&newnfsd_mtx); 945 mtx_destroy(&nfs_state_mutex); 946 mtx_destroy(&nfs_clstate_mutex); 947 mtx_destroy(&nfs_sockl_mutex); 948 mtx_destroy(&nfs_slock_mutex); 949 mtx_destroy(&nfs_req_mutex); 950 mtx_destroy(&nfsrv_dslock_mtx); 951 loaded = 0; 952 break; 953 default: 954 error = EOPNOTSUPP; 955 break; 956 } 957 958 out: 959 NFSEXITCODE(error); 960 return error; 961 } 962 static moduledata_t nfscommon_mod = { 963 "nfscommon", 964 nfscommon_modevent, 965 NULL, 966 }; 967 DECLARE_MODULE(nfscommon, nfscommon_mod, SI_SUB_VFS, SI_ORDER_ANY); 968 969 /* So that loader and kldload(2) can find us, wherever we are.. */ 970 MODULE_VERSION(nfscommon, 1); 971 MODULE_DEPEND(nfscommon, nfssvc, 1, 1, 1); 972 MODULE_DEPEND(nfscommon, krpc, 1, 1, 1); 973