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/* 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/smp.h> 44#include <sys/sysctl.h> 45#include <sys/taskqueue.h> 46#include <rpc/rpc_com.h> 47#include <vm/vm.h> 48#include <vm/vm_object.h> 49#include <vm/vm_page.h> 50#include <vm/vm_param.h> 51#include <vm/vm_map.h> 52#include <vm/vm_kern.h> 53#include <vm/vm_extern.h> 54#include <vm/uma.h> 55 56extern int nfscl_ticks; 57extern void (*nfsd_call_recall)(struct vnode *, int, struct ucred *, 58 struct thread *); 59extern int nfsrv_useacl; 60int newnfs_numnfsd = 0; 61struct nfsstatsv1 nfsstatsv1; 62int nfs_numnfscbd = 0; 63int nfscl_debuglevel = 0; 64char nfsv4_callbackaddr[INET6_ADDRSTRLEN]; 65int nfsrv_lughashsize = 100; 66struct mtx nfsrv_dslock_mtx; 67struct nfsdevicehead nfsrv_devidhead; 68volatile int nfsrv_devidcnt = 0; 69void (*ncl_call_invalcaches)(struct vnode *) = NULL; 70vop_advlock_t *nfs_advlock_p = NULL; 71vop_reclaim_t *nfs_reclaim_p = NULL; 72uint32_t nfs_srvmaxio = NFS_SRVMAXIO; 73 74NFSD_VNET_DEFINE(struct nfsstatsv1 *, nfsstatsv1_p); 75 76NFSD_VNET_DECLARE(struct nfssockreq, nfsrv_nfsuserdsock); 77NFSD_VNET_DECLARE(nfsuserd_state, nfsrv_nfsuserd); 78 79int nfs_pnfsio(task_fn_t *, void *); 80 81static int nfs_realign_test; 82static int nfs_realign_count; 83static struct ext_nfsstats oldnfsstats; 84static struct nfsstatsov1 nfsstatsov1; 85 86SYSCTL_NODE(_vfs, OID_AUTO, nfs, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 87 "NFS filesystem"); 88SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_test, CTLFLAG_RW, &nfs_realign_test, 89 0, "Number of realign tests done"); 90SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_count, CTLFLAG_RW, &nfs_realign_count, 91 0, "Number of mbuf realignments done"); 92SYSCTL_STRING(_vfs_nfs, OID_AUTO, callback_addr, CTLFLAG_RW, 93 nfsv4_callbackaddr, sizeof(nfsv4_callbackaddr), 94 "NFSv4 callback addr for server to use"); 95SYSCTL_INT(_vfs_nfs, OID_AUTO, debuglevel, CTLFLAG_RW, &nfscl_debuglevel, 96 0, "Debug level for NFS client"); 97SYSCTL_INT(_vfs_nfs, OID_AUTO, userhashsize, CTLFLAG_RDTUN, &nfsrv_lughashsize, 98 0, "Size of hash tables for uid/name mapping"); 99int nfs_pnfsiothreads = -1; 100SYSCTL_INT(_vfs_nfs, OID_AUTO, pnfsiothreads, CTLFLAG_RW, &nfs_pnfsiothreads, 101 0, "Number of pNFS mirror I/O threads"); 102 103/* 104 * Defines for malloc 105 * (Here for FreeBSD, since they allocate storage.) 106 */ 107MALLOC_DEFINE(M_NEWNFSRVCACHE, "NFSD srvcache", "NFSD Server Request Cache"); 108MALLOC_DEFINE(M_NEWNFSDCLIENT, "NFSD V4client", "NFSD V4 Client Id"); 109MALLOC_DEFINE(M_NEWNFSDSTATE, "NFSD V4state", 110 "NFSD V4 State (Openowner, Open, Lockowner, Delegation"); 111MALLOC_DEFINE(M_NEWNFSDLOCK, "NFSD V4lock", "NFSD V4 byte range lock"); 112MALLOC_DEFINE(M_NEWNFSDLOCKFILE, "NFSD lckfile", "NFSD Open/Lock file"); 113MALLOC_DEFINE(M_NEWNFSSTRING, "NFSD string", "NFSD V4 long string"); 114MALLOC_DEFINE(M_NEWNFSUSERGROUP, "NFSD usrgroup", "NFSD V4 User/group map"); 115MALLOC_DEFINE(M_NEWNFSDREQ, "NFS req", "NFS request header"); 116MALLOC_DEFINE(M_NEWNFSFH, "NFS fh", "NFS file handle"); 117MALLOC_DEFINE(M_NEWNFSCLOWNER, "NFSCL owner", "NFSCL Open Owner"); 118MALLOC_DEFINE(M_NEWNFSCLOPEN, "NFSCL open", "NFSCL Open"); 119MALLOC_DEFINE(M_NEWNFSCLDELEG, "NFSCL deleg", "NFSCL Delegation"); 120MALLOC_DEFINE(M_NEWNFSCLCLIENT, "NFSCL client", "NFSCL Client"); 121MALLOC_DEFINE(M_NEWNFSCLLOCKOWNER, "NFSCL lckown", "NFSCL Lock Owner"); 122MALLOC_DEFINE(M_NEWNFSCLLOCK, "NFSCL lck", "NFSCL Lock"); 123MALLOC_DEFINE(M_NEWNFSV4NODE, "NEWNFSnode", "NFS vnode"); 124MALLOC_DEFINE(M_NEWNFSDIROFF, "NFSCL diroff", 125 "NFS directory offset data"); 126MALLOC_DEFINE(M_NEWNFSDROLLBACK, "NFSD rollback", 127 "NFS local lock rollback"); 128MALLOC_DEFINE(M_NEWNFSLAYOUT, "NFSCL layout", "NFSv4.1 Layout"); 129MALLOC_DEFINE(M_NEWNFSFLAYOUT, "NFSCL flayout", "NFSv4.1 File Layout"); 130MALLOC_DEFINE(M_NEWNFSDEVINFO, "NFSCL devinfo", "NFSv4.1 Device Info"); 131MALLOC_DEFINE(M_NEWNFSSOCKREQ, "NFSCL sockreq", "NFS Sock Req"); 132MALLOC_DEFINE(M_NEWNFSCLDS, "NFSCL session", "NFSv4.1 Session"); 133MALLOC_DEFINE(M_NEWNFSLAYRECALL, "NFSCL layrecall", "NFSv4.1 Layout Recall"); 134MALLOC_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 */ 141struct mtx newnfsd_mtx; 142struct mtx nfs_sockl_mutex; 143struct mtx nfs_state_mutex; 144struct mtx nfs_nameid_mutex; 145struct mtx nfs_req_mutex; 146struct mtx nfs_slock_mutex; 147struct mtx nfs_clstate_mutex; 148 149/* local functions */ 150static 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 */ 156int 157newnfs_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 */ 179int 180newnfs_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 225static void 226nfsrv_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 */ 238int 239nfsrv_lookupfilename(struct nameidata *ndp, char *fname, NFSPROC_T *p __unused) 240{ 241 int error; 242 243 NDINIT(ndp, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, fname); 244 error = namei(ndp); 245 if (!error) { 246 NDFREE_PNBUF(ndp); 247 } 248 return (error); 249} 250 251/* 252 * Copy NFS uid, gids to the cred structure. 253 */ 254void 255newnfs_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 */ 267int 268nfsmsleep(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 */ 290void 291nfsvno_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 */ 322int 323nfsvno_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 */ 364int 365nfsrv_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 */ 376void 377newnfs_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 */ 388struct ucred * 389newnfs_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 * Sleep for a short period of time unless errval == NFSERR_GRACE, where 401 * the sleep should be for 5 seconds. 402 * Since lbolt doesn't exist in FreeBSD-CURRENT, just use a timeout on 403 * an event that never gets a wakeup. Only return EINTR or 0. 404 */ 405int 406nfs_catnap(int prio, int errval, const char *wmesg) 407{ 408 static int non_event; 409 int ret; 410 411 if (errval == NFSERR_GRACE) 412 ret = tsleep(&non_event, prio, wmesg, 5 * hz); 413 else 414 ret = tsleep(&non_event, prio, wmesg, 1); 415 if (ret != EINTR) 416 ret = 0; 417 return (ret); 418} 419 420/* 421 * Get referral. For now, just fail. 422 */ 423struct nfsreferral * 424nfsv4root_getreferral(struct vnode *vp, struct vnode *dvp, u_int32_t fileno) 425{ 426 427 return (NULL); 428} 429 430static int 431nfssvc_nfscommon(struct thread *td, struct nfssvc_args *uap) 432{ 433 int error; 434 435 NFSD_CURVNET_SET(NFSD_TD_TO_VNET(td)); 436 error = nfssvc_call(td, uap, td->td_ucred); 437 NFSD_CURVNET_RESTORE(); 438 NFSEXITCODE(error); 439 return (error); 440} 441 442static int 443nfssvc_call(struct thread *p, struct nfssvc_args *uap, struct ucred *cred) 444{ 445 int error = EINVAL, i, j; 446 struct nfsd_idargs nid; 447 struct nfsd_oidargs onid; 448 struct { 449 int vers; /* Just the first field of nfsstats. */ 450 } nfsstatver; 451 452 if (uap->flag & NFSSVC_IDNAME) { 453 if ((uap->flag & NFSSVC_NEWSTRUCT) != 0) 454 error = copyin(uap->argp, &nid, sizeof(nid)); 455 else { 456 error = copyin(uap->argp, &onid, sizeof(onid)); 457 if (error == 0) { 458 nid.nid_flag = onid.nid_flag; 459 nid.nid_uid = onid.nid_uid; 460 nid.nid_gid = onid.nid_gid; 461 nid.nid_usermax = onid.nid_usermax; 462 nid.nid_usertimeout = onid.nid_usertimeout; 463 nid.nid_name = onid.nid_name; 464 nid.nid_namelen = onid.nid_namelen; 465 nid.nid_ngroup = 0; 466 nid.nid_grps = NULL; 467 } 468 } 469 if (error) 470 goto out; 471 error = nfssvc_idname(&nid); 472 goto out; 473 } else if (uap->flag & NFSSVC_GETSTATS) { 474 if ((uap->flag & NFSSVC_NEWSTRUCT) == 0) { 475 /* Copy fields to the old ext_nfsstat structure. */ 476 oldnfsstats.attrcache_hits = 477 NFSD_VNET(nfsstatsv1_p)->attrcache_hits; 478 oldnfsstats.attrcache_misses = 479 NFSD_VNET(nfsstatsv1_p)->attrcache_misses; 480 oldnfsstats.lookupcache_hits = 481 NFSD_VNET(nfsstatsv1_p)->lookupcache_hits; 482 oldnfsstats.lookupcache_misses = 483 NFSD_VNET(nfsstatsv1_p)->lookupcache_misses; 484 oldnfsstats.direofcache_hits = 485 NFSD_VNET(nfsstatsv1_p)->direofcache_hits; 486 oldnfsstats.direofcache_misses = 487 NFSD_VNET(nfsstatsv1_p)->direofcache_misses; 488 oldnfsstats.accesscache_hits = 489 NFSD_VNET(nfsstatsv1_p)->accesscache_hits; 490 oldnfsstats.accesscache_misses = 491 NFSD_VNET(nfsstatsv1_p)->accesscache_misses; 492 oldnfsstats.biocache_reads = 493 NFSD_VNET(nfsstatsv1_p)->biocache_reads; 494 oldnfsstats.read_bios = 495 NFSD_VNET(nfsstatsv1_p)->read_bios; 496 oldnfsstats.read_physios = 497 NFSD_VNET(nfsstatsv1_p)->read_physios; 498 oldnfsstats.biocache_writes = 499 NFSD_VNET(nfsstatsv1_p)->biocache_writes; 500 oldnfsstats.write_bios = 501 NFSD_VNET(nfsstatsv1_p)->write_bios; 502 oldnfsstats.write_physios = 503 NFSD_VNET(nfsstatsv1_p)->write_physios; 504 oldnfsstats.biocache_readlinks = 505 NFSD_VNET(nfsstatsv1_p)->biocache_readlinks; 506 oldnfsstats.readlink_bios = 507 NFSD_VNET(nfsstatsv1_p)->readlink_bios; 508 oldnfsstats.biocache_readdirs = 509 NFSD_VNET(nfsstatsv1_p)->biocache_readdirs; 510 oldnfsstats.readdir_bios = 511 NFSD_VNET(nfsstatsv1_p)->readdir_bios; 512 for (i = 0; i < NFSV4_NPROCS; i++) 513 oldnfsstats.rpccnt[i] = 514 NFSD_VNET(nfsstatsv1_p)->rpccnt[i]; 515 oldnfsstats.rpcretries = 516 NFSD_VNET(nfsstatsv1_p)->rpcretries; 517 for (i = 0; i < NFSV4OP_NOPS; i++) 518 oldnfsstats.srvrpccnt[i] = 519 NFSD_VNET(nfsstatsv1_p)->srvrpccnt[i]; 520 for (i = NFSV42_NOPS, j = NFSV4OP_NOPS; 521 i < NFSV42_NOPS + NFSV4OP_FAKENOPS; i++, j++) 522 oldnfsstats.srvrpccnt[j] = 523 NFSD_VNET(nfsstatsv1_p)->srvrpccnt[i]; 524 oldnfsstats.reserved_0 = 0; 525 oldnfsstats.reserved_1 = 0; 526 oldnfsstats.rpcrequests = 527 NFSD_VNET(nfsstatsv1_p)->rpcrequests; 528 oldnfsstats.rpctimeouts = 529 NFSD_VNET(nfsstatsv1_p)->rpctimeouts; 530 oldnfsstats.rpcunexpected = 531 NFSD_VNET(nfsstatsv1_p)->rpcunexpected; 532 oldnfsstats.rpcinvalid = 533 NFSD_VNET(nfsstatsv1_p)->rpcinvalid; 534 oldnfsstats.srvcache_inproghits = 535 NFSD_VNET(nfsstatsv1_p)->srvcache_inproghits; 536 oldnfsstats.reserved_2 = 0; 537 oldnfsstats.srvcache_nonidemdonehits = 538 NFSD_VNET(nfsstatsv1_p)->srvcache_nonidemdonehits; 539 oldnfsstats.srvcache_misses = 540 NFSD_VNET(nfsstatsv1_p)->srvcache_misses; 541 oldnfsstats.srvcache_tcppeak = 542 NFSD_VNET(nfsstatsv1_p)->srvcache_tcppeak; 543 oldnfsstats.srvcache_size = 544 NFSD_VNET(nfsstatsv1_p)->srvcache_size; 545 oldnfsstats.srvclients = 546 NFSD_VNET(nfsstatsv1_p)->srvclients; 547 oldnfsstats.srvopenowners = 548 NFSD_VNET(nfsstatsv1_p)->srvopenowners; 549 oldnfsstats.srvopens = 550 NFSD_VNET(nfsstatsv1_p)->srvopens; 551 oldnfsstats.srvlockowners = 552 NFSD_VNET(nfsstatsv1_p)->srvlockowners; 553 oldnfsstats.srvlocks = 554 NFSD_VNET(nfsstatsv1_p)->srvlocks; 555 oldnfsstats.srvdelegates = 556 NFSD_VNET(nfsstatsv1_p)->srvdelegates; 557 for (i = 0; i < NFSV4OP_CBNOPS; i++) 558 oldnfsstats.cbrpccnt[i] = 559 NFSD_VNET(nfsstatsv1_p)->cbrpccnt[i]; 560 oldnfsstats.clopenowners = 561 NFSD_VNET(nfsstatsv1_p)->clopenowners; 562 oldnfsstats.clopens = NFSD_VNET(nfsstatsv1_p)->clopens; 563 oldnfsstats.cllockowners = 564 NFSD_VNET(nfsstatsv1_p)->cllockowners; 565 oldnfsstats.cllocks = NFSD_VNET(nfsstatsv1_p)->cllocks; 566 oldnfsstats.cldelegates = 567 NFSD_VNET(nfsstatsv1_p)->cldelegates; 568 oldnfsstats.cllocalopenowners = 569 NFSD_VNET(nfsstatsv1_p)->cllocalopenowners; 570 oldnfsstats.cllocalopens = 571 NFSD_VNET(nfsstatsv1_p)->cllocalopens; 572 oldnfsstats.cllocallockowners = 573 NFSD_VNET(nfsstatsv1_p)->cllocallockowners; 574 oldnfsstats.cllocallocks = 575 NFSD_VNET(nfsstatsv1_p)->cllocallocks; 576 error = copyout(&oldnfsstats, uap->argp, 577 sizeof (oldnfsstats)); 578 } else { 579 error = copyin(uap->argp, &nfsstatver, 580 sizeof(nfsstatver)); 581 if (error == 0) { 582 if (nfsstatver.vers == NFSSTATS_OV1) { 583 /* Copy nfsstatsv1 to nfsstatsov1. */ 584 nfsstatsov1.attrcache_hits = 585 NFSD_VNET(nfsstatsv1_p)->attrcache_hits; 586 nfsstatsov1.attrcache_misses = 587 NFSD_VNET(nfsstatsv1_p)->attrcache_misses; 588 nfsstatsov1.lookupcache_hits = 589 NFSD_VNET(nfsstatsv1_p)->lookupcache_hits; 590 nfsstatsov1.lookupcache_misses = 591 NFSD_VNET(nfsstatsv1_p)->lookupcache_misses; 592 nfsstatsov1.direofcache_hits = 593 NFSD_VNET(nfsstatsv1_p)->direofcache_hits; 594 nfsstatsov1.direofcache_misses = 595 NFSD_VNET(nfsstatsv1_p)->direofcache_misses; 596 nfsstatsov1.accesscache_hits = 597 NFSD_VNET(nfsstatsv1_p)->accesscache_hits; 598 nfsstatsov1.accesscache_misses = 599 NFSD_VNET(nfsstatsv1_p)->accesscache_misses; 600 nfsstatsov1.biocache_reads = 601 NFSD_VNET(nfsstatsv1_p)->biocache_reads; 602 nfsstatsov1.read_bios = 603 NFSD_VNET(nfsstatsv1_p)->read_bios; 604 nfsstatsov1.read_physios = 605 NFSD_VNET(nfsstatsv1_p)->read_physios; 606 nfsstatsov1.biocache_writes = 607 NFSD_VNET(nfsstatsv1_p)->biocache_writes; 608 nfsstatsov1.write_bios = 609 NFSD_VNET(nfsstatsv1_p)->write_bios; 610 nfsstatsov1.write_physios = 611 NFSD_VNET(nfsstatsv1_p)->write_physios; 612 nfsstatsov1.biocache_readlinks = 613 NFSD_VNET(nfsstatsv1_p)->biocache_readlinks; 614 nfsstatsov1.readlink_bios = 615 NFSD_VNET(nfsstatsv1_p)->readlink_bios; 616 nfsstatsov1.biocache_readdirs = 617 NFSD_VNET(nfsstatsv1_p)->biocache_readdirs; 618 nfsstatsov1.readdir_bios = 619 NFSD_VNET(nfsstatsv1_p)->readdir_bios; 620 for (i = 0; i < NFSV42_OLDNPROCS; i++) 621 nfsstatsov1.rpccnt[i] = 622 NFSD_VNET(nfsstatsv1_p)->rpccnt[i]; 623 nfsstatsov1.rpcretries = 624 NFSD_VNET(nfsstatsv1_p)->rpcretries; 625 for (i = 0; i < NFSV42_PURENOPS; i++) 626 nfsstatsov1.srvrpccnt[i] = 627 NFSD_VNET(nfsstatsv1_p)->srvrpccnt[i]; 628 for (i = NFSV42_NOPS, 629 j = NFSV42_PURENOPS; 630 i < NFSV42_NOPS + NFSV4OP_FAKENOPS; 631 i++, j++) 632 nfsstatsov1.srvrpccnt[j] = 633 NFSD_VNET(nfsstatsv1_p)->srvrpccnt[i]; 634 nfsstatsov1.reserved_0 = 0; 635 nfsstatsov1.reserved_1 = 0; 636 nfsstatsov1.rpcrequests = 637 NFSD_VNET(nfsstatsv1_p)->rpcrequests; 638 nfsstatsov1.rpctimeouts = 639 NFSD_VNET(nfsstatsv1_p)->rpctimeouts; 640 nfsstatsov1.rpcunexpected = 641 NFSD_VNET(nfsstatsv1_p)->rpcunexpected; 642 nfsstatsov1.rpcinvalid = 643 NFSD_VNET(nfsstatsv1_p)->rpcinvalid; 644 nfsstatsov1.srvcache_inproghits = 645 NFSD_VNET(nfsstatsv1_p)->srvcache_inproghits; 646 nfsstatsov1.reserved_2 = 0; 647 nfsstatsov1.srvcache_nonidemdonehits = 648 NFSD_VNET(nfsstatsv1_p)->srvcache_nonidemdonehits; 649 nfsstatsov1.srvcache_misses = 650 NFSD_VNET(nfsstatsv1_p)->srvcache_misses; 651 nfsstatsov1.srvcache_tcppeak = 652 NFSD_VNET(nfsstatsv1_p)->srvcache_tcppeak; 653 nfsstatsov1.srvcache_size = 654 NFSD_VNET(nfsstatsv1_p)->srvcache_size; 655 nfsstatsov1.srvclients = 656 NFSD_VNET(nfsstatsv1_p)->srvclients; 657 nfsstatsov1.srvopenowners = 658 NFSD_VNET(nfsstatsv1_p)->srvopenowners; 659 nfsstatsov1.srvopens = 660 NFSD_VNET(nfsstatsv1_p)->srvopens; 661 nfsstatsov1.srvlockowners = 662 NFSD_VNET(nfsstatsv1_p)->srvlockowners; 663 nfsstatsov1.srvlocks = 664 NFSD_VNET(nfsstatsv1_p)->srvlocks; 665 nfsstatsov1.srvdelegates = 666 NFSD_VNET(nfsstatsv1_p)->srvdelegates; 667 for (i = 0; i < NFSV42_CBNOPS; i++) 668 nfsstatsov1.cbrpccnt[i] = 669 NFSD_VNET(nfsstatsv1_p)->cbrpccnt[i]; 670 nfsstatsov1.clopenowners = 671 NFSD_VNET(nfsstatsv1_p)->clopenowners; 672 nfsstatsov1.clopens = 673 NFSD_VNET(nfsstatsv1_p)->clopens; 674 nfsstatsov1.cllockowners = 675 NFSD_VNET(nfsstatsv1_p)->cllockowners; 676 nfsstatsov1.cllocks = 677 NFSD_VNET(nfsstatsv1_p)->cllocks; 678 nfsstatsov1.cldelegates = 679 NFSD_VNET(nfsstatsv1_p)->cldelegates; 680 nfsstatsov1.cllocalopenowners = 681 NFSD_VNET(nfsstatsv1_p)->cllocalopenowners; 682 nfsstatsov1.cllocalopens = 683 NFSD_VNET(nfsstatsv1_p)->cllocalopens; 684 nfsstatsov1.cllocallockowners = 685 NFSD_VNET(nfsstatsv1_p)->cllocallockowners; 686 nfsstatsov1.cllocallocks = 687 NFSD_VNET(nfsstatsv1_p)->cllocallocks; 688 nfsstatsov1.srvstartcnt = 689 NFSD_VNET(nfsstatsv1_p)->srvstartcnt; 690 nfsstatsov1.srvdonecnt = 691 NFSD_VNET(nfsstatsv1_p)->srvdonecnt; 692 for (i = NFSV42_NOPS, 693 j = NFSV42_PURENOPS; 694 i < NFSV42_NOPS + NFSV4OP_FAKENOPS; 695 i++, j++) { 696 nfsstatsov1.srvbytes[j] = 697 NFSD_VNET(nfsstatsv1_p)->srvbytes[i]; 698 nfsstatsov1.srvops[j] = 699 NFSD_VNET(nfsstatsv1_p)->srvops[i]; 700 nfsstatsov1.srvduration[j] = 701 NFSD_VNET(nfsstatsv1_p)->srvduration[i]; 702 } 703 nfsstatsov1.busyfrom = 704 NFSD_VNET(nfsstatsv1_p)->busyfrom; 705 nfsstatsov1.busyfrom = 706 NFSD_VNET(nfsstatsv1_p)->busyfrom; 707 error = copyout(&nfsstatsov1, uap->argp, 708 sizeof(nfsstatsov1)); 709 } else if (nfsstatver.vers != NFSSTATS_V1) 710 error = EPERM; 711 else 712 error = copyout(NFSD_VNET(nfsstatsv1_p), 713 uap->argp, sizeof(nfsstatsv1)); 714 } 715 } 716 if (error == 0) { 717 if ((uap->flag & NFSSVC_ZEROCLTSTATS) != 0) { 718 NFSD_VNET(nfsstatsv1_p)->attrcache_hits = 0; 719 NFSD_VNET(nfsstatsv1_p)->attrcache_misses = 0; 720 NFSD_VNET(nfsstatsv1_p)->lookupcache_hits = 0; 721 NFSD_VNET(nfsstatsv1_p)->lookupcache_misses = 0; 722 NFSD_VNET(nfsstatsv1_p)->direofcache_hits = 0; 723 NFSD_VNET(nfsstatsv1_p)->direofcache_misses = 0; 724 NFSD_VNET(nfsstatsv1_p)->accesscache_hits = 0; 725 NFSD_VNET(nfsstatsv1_p)->accesscache_misses = 0; 726 NFSD_VNET(nfsstatsv1_p)->biocache_reads = 0; 727 NFSD_VNET(nfsstatsv1_p)->read_bios = 0; 728 NFSD_VNET(nfsstatsv1_p)->read_physios = 0; 729 NFSD_VNET(nfsstatsv1_p)->biocache_writes = 0; 730 NFSD_VNET(nfsstatsv1_p)->write_bios = 0; 731 NFSD_VNET(nfsstatsv1_p)->write_physios = 0; 732 NFSD_VNET(nfsstatsv1_p)->biocache_readlinks = 0; 733 NFSD_VNET(nfsstatsv1_p)->readlink_bios = 0; 734 NFSD_VNET(nfsstatsv1_p)->biocache_readdirs = 0; 735 NFSD_VNET(nfsstatsv1_p)->readdir_bios = 0; 736 NFSD_VNET(nfsstatsv1_p)->rpcretries = 0; 737 NFSD_VNET(nfsstatsv1_p)->rpcrequests = 0; 738 NFSD_VNET(nfsstatsv1_p)->rpctimeouts = 0; 739 NFSD_VNET(nfsstatsv1_p)->rpcunexpected = 0; 740 NFSD_VNET(nfsstatsv1_p)->rpcinvalid = 0; 741 bzero(NFSD_VNET(nfsstatsv1_p)->rpccnt, 742 sizeof(NFSD_VNET(nfsstatsv1_p)->rpccnt)); 743 } 744 if ((uap->flag & NFSSVC_ZEROSRVSTATS) != 0) { 745 NFSD_VNET(nfsstatsv1_p)->srvcache_inproghits = 0; 746 NFSD_VNET(nfsstatsv1_p)->srvcache_nonidemdonehits = 0; 747 NFSD_VNET(nfsstatsv1_p)->srvcache_misses = 0; 748 NFSD_VNET(nfsstatsv1_p)->srvcache_tcppeak = 0; 749 bzero(NFSD_VNET(nfsstatsv1_p)->srvrpccnt, 750 sizeof(NFSD_VNET(nfsstatsv1_p)->srvrpccnt)); 751 bzero(NFSD_VNET(nfsstatsv1_p)->cbrpccnt, 752 sizeof(NFSD_VNET(nfsstatsv1_p)->cbrpccnt)); 753 } 754 } 755 goto out; 756 } else if (uap->flag & NFSSVC_NFSUSERDPORT) { 757 u_short sockport; 758 struct nfsuserd_args nargs; 759 760 if ((uap->flag & NFSSVC_NEWSTRUCT) == 0) { 761 error = copyin(uap->argp, (caddr_t)&sockport, 762 sizeof (u_short)); 763 if (error == 0) { 764 nargs.nuserd_family = AF_INET; 765 nargs.nuserd_port = sockport; 766 } 767 } else { 768 /* 769 * New nfsuserd_args structure, which indicates 770 * which IP version to use along with the port#. 771 */ 772 error = copyin(uap->argp, &nargs, sizeof(nargs)); 773 } 774 if (!error) 775 error = nfsrv_nfsuserdport(&nargs, p); 776 } else if (uap->flag & NFSSVC_NFSUSERDDELPORT) { 777 nfsrv_nfsuserddelport(); 778 error = 0; 779 } 780 781out: 782 NFSEXITCODE(error); 783 return (error); 784} 785 786/* 787 * called by all three modevent routines, so that it gets things 788 * initialized soon enough. 789 */ 790void 791newnfs_portinit(void) 792{ 793 static int inited = 0; 794 795 if (inited) 796 return; 797 inited = 1; 798 /* Initialize SMP locks used by both client and server. */ 799 mtx_init(&newnfsd_mtx, "newnfsd_mtx", NULL, MTX_DEF); 800 mtx_init(&nfs_state_mutex, "nfs_state_mutex", NULL, MTX_DEF); 801 mtx_init(&nfs_clstate_mutex, "nfs_clstate_mutex", NULL, MTX_DEF); 802} 803 804/* 805 * Determine if the file system supports NFSv4 ACLs. 806 * Return 1 if it does, 0 otherwise. 807 */ 808int 809nfs_supportsnfsv4acls(struct vnode *vp) 810{ 811 int error; 812 long retval; 813 814 ASSERT_VOP_LOCKED(vp, "nfs supports nfsv4acls"); 815 816 if (nfsrv_useacl == 0) 817 return (0); 818 error = VOP_PATHCONF(vp, _PC_ACL_NFS4, &retval); 819 if (error == 0 && retval != 0) 820 return (1); 821 return (0); 822} 823 824/* 825 * These are the first fields of all the context structures passed into 826 * nfs_pnfsio(). 827 */ 828struct pnfsio { 829 int done; 830 int inprog; 831 struct task tsk; 832}; 833 834/* 835 * Do a mirror I/O on a pNFS thread. 836 */ 837int 838nfs_pnfsio(task_fn_t *func, void *context) 839{ 840 struct pnfsio *pio; 841 int ret; 842 static struct taskqueue *pnfsioq = NULL; 843 844 pio = (struct pnfsio *)context; 845 if (pnfsioq == NULL) { 846 if (nfs_pnfsiothreads == 0) 847 return (EPERM); 848 if (nfs_pnfsiothreads < 0) 849 nfs_pnfsiothreads = mp_ncpus * 4; 850 pnfsioq = taskqueue_create("pnfsioq", M_WAITOK, 851 taskqueue_thread_enqueue, &pnfsioq); 852 if (pnfsioq == NULL) 853 return (ENOMEM); 854 ret = taskqueue_start_threads(&pnfsioq, nfs_pnfsiothreads, 855 0, "pnfsiot"); 856 if (ret != 0) { 857 taskqueue_free(pnfsioq); 858 pnfsioq = NULL; 859 return (ret); 860 } 861 } 862 pio->inprog = 1; 863 TASK_INIT(&pio->tsk, 0, func, context); 864 ret = taskqueue_enqueue(pnfsioq, &pio->tsk); 865 if (ret != 0) 866 pio->inprog = 0; 867 return (ret); 868} 869 870/* 871 * Initialize everything that needs to be initialized for a vnet. 872 */ 873static void 874nfs_vnetinit(const void *unused __unused) 875{ 876 877 if (IS_DEFAULT_VNET(curvnet)) 878 NFSD_VNET(nfsstatsv1_p) = &nfsstatsv1; 879 else 880 NFSD_VNET(nfsstatsv1_p) = malloc(sizeof(struct nfsstatsv1), 881 M_TEMP, M_WAITOK | M_ZERO); 882 mtx_init(&NFSD_VNET(nfsrv_nfsuserdsock).nr_mtx, "nfsuserd", 883 NULL, MTX_DEF); 884} 885VNET_SYSINIT(nfs_vnetinit, SI_SUB_VNET_DONE, SI_ORDER_FIRST, 886 nfs_vnetinit, NULL); 887 888static void 889nfs_cleanup(void *unused __unused) 890{ 891 892 mtx_destroy(&NFSD_VNET(nfsrv_nfsuserdsock).nr_mtx); 893 if (!IS_DEFAULT_VNET(curvnet)) { 894 free(NFSD_VNET(nfsstatsv1_p), M_TEMP); 895 NFSD_VNET(nfsstatsv1_p) = NULL; 896 } 897 /* Clean out the name<-->id cache. */ 898 nfsrv_cleanusergroup(); 899} 900VNET_SYSUNINIT(nfs_cleanup, SI_SUB_VNET_DONE, SI_ORDER_FIRST, 901 nfs_cleanup, NULL); 902 903extern int (*nfsd_call_nfscommon)(struct thread *, struct nfssvc_args *); 904 905/* 906 * Called once to initialize data structures... 907 */ 908static int 909nfscommon_modevent(module_t mod, int type, void *data) 910{ 911 int error = 0; 912 static int loaded = 0; 913 914 switch (type) { 915 case MOD_LOAD: 916 if (loaded) 917 goto out; 918 newnfs_portinit(); 919 mtx_init(&nfs_nameid_mutex, "nfs_nameid_mutex", NULL, MTX_DEF); 920 mtx_init(&nfs_sockl_mutex, "nfs_sockl_mutex", NULL, MTX_DEF); 921 mtx_init(&nfs_slock_mutex, "nfs_slock_mutex", NULL, MTX_DEF); 922 mtx_init(&nfs_req_mutex, "nfs_req_mutex", NULL, MTX_DEF); 923 mtx_init(&nfsrv_dslock_mtx, "nfs4ds", NULL, MTX_DEF); 924 TAILQ_INIT(&nfsrv_devidhead); 925 newnfs_init(); 926 nfsd_call_nfscommon = nfssvc_nfscommon; 927 loaded = 1; 928 break; 929 930 case MOD_UNLOAD: 931 if (newnfs_numnfsd != 0 || 932 NFSD_VNET(nfsrv_nfsuserd) != NOTRUNNING || 933 nfs_numnfscbd != 0) { 934 error = EBUSY; 935 break; 936 } 937 938 nfsd_call_nfscommon = NULL; 939 /* and get rid of the mutexes */ 940 mtx_destroy(&nfs_nameid_mutex); 941 mtx_destroy(&newnfsd_mtx); 942 mtx_destroy(&nfs_state_mutex); 943 mtx_destroy(&nfs_clstate_mutex); 944 mtx_destroy(&nfs_sockl_mutex); 945 mtx_destroy(&nfs_slock_mutex); 946 mtx_destroy(&nfs_req_mutex); 947 mtx_destroy(&nfsrv_dslock_mtx); 948 loaded = 0; 949 break; 950 default: 951 error = EOPNOTSUPP; 952 break; 953 } 954 955out: 956 NFSEXITCODE(error); 957 return error; 958} 959static moduledata_t nfscommon_mod = { 960 "nfscommon", 961 nfscommon_modevent, 962 NULL, 963}; 964DECLARE_MODULE(nfscommon, nfscommon_mod, SI_SUB_VFS, SI_ORDER_ANY); 965 966/* So that loader and kldload(2) can find us, wherever we are.. */ 967MODULE_VERSION(nfscommon, 1); 968MODULE_DEPEND(nfscommon, nfssvc, 1, 1, 1); 969MODULE_DEPEND(nfscommon, krpc, 1, 1, 1); 970