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 * 4. 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 <vm/vm.h> 45 #include <vm/vm_object.h> 46 #include <vm/vm_page.h> 47 #include <vm/vm_param.h> 48 #include <vm/vm_map.h> 49 #include <vm/vm_kern.h> 50 #include <vm/vm_extern.h> 51 #include <vm/uma.h> 52 #include <vm/uma_int.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 nfsstats newnfsstats; 63 int nfs_numnfscbd = 0; 64 char nfsv4_callbackaddr[INET6_ADDRSTRLEN]; 65 struct callout newnfsd_callout; 66 void (*nfsd_call_servertimer)(void) = NULL; 67 void (*ncl_call_invalcaches)(struct vnode *) = NULL; 68 69 static int nfs_realign_test; 70 static int nfs_realign_count; 71 72 SYSCTL_NODE(_vfs, OID_AUTO, nfs, CTLFLAG_RW, 0, "New NFS filesystem"); 73 SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_test, CTLFLAG_RW, &nfs_realign_test, 74 0, "Number of realign tests done"); 75 SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_count, CTLFLAG_RW, &nfs_realign_count, 76 0, "Number of mbuf realignments done"); 77 SYSCTL_STRING(_vfs_nfs, OID_AUTO, callback_addr, CTLFLAG_RW, 78 nfsv4_callbackaddr, sizeof(nfsv4_callbackaddr), 79 "NFSv4 callback addr for server to use"); 80 81 /* 82 * Defines for malloc 83 * (Here for FreeBSD, since they allocate storage.) 84 */ 85 MALLOC_DEFINE(M_NEWNFSRVCACHE, "NFSD srvcache", "NFSD Server Request Cache"); 86 MALLOC_DEFINE(M_NEWNFSDCLIENT, "NFSD V4client", "NFSD V4 Client Id"); 87 MALLOC_DEFINE(M_NEWNFSDSTATE, "NFSD V4state", 88 "NFSD V4 State (Openowner, Open, Lockowner, Delegation"); 89 MALLOC_DEFINE(M_NEWNFSDLOCK, "NFSD V4lock", "NFSD V4 byte range lock"); 90 MALLOC_DEFINE(M_NEWNFSDLOCKFILE, "NFSD lckfile", "NFSD Open/Lock file"); 91 MALLOC_DEFINE(M_NEWNFSSTRING, "NFSD string", "NFSD V4 long string"); 92 MALLOC_DEFINE(M_NEWNFSUSERGROUP, "NFSD usrgroup", "NFSD V4 User/group map"); 93 MALLOC_DEFINE(M_NEWNFSDREQ, "NFS req", "NFS request header"); 94 MALLOC_DEFINE(M_NEWNFSFH, "NFS fh", "NFS file handle"); 95 MALLOC_DEFINE(M_NEWNFSCLOWNER, "NFSCL owner", "NFSCL Open Owner"); 96 MALLOC_DEFINE(M_NEWNFSCLOPEN, "NFSCL open", "NFSCL Open"); 97 MALLOC_DEFINE(M_NEWNFSCLDELEG, "NFSCL deleg", "NFSCL Delegation"); 98 MALLOC_DEFINE(M_NEWNFSCLCLIENT, "NFSCL client", "NFSCL Client"); 99 MALLOC_DEFINE(M_NEWNFSCLLOCKOWNER, "NFSCL lckown", "NFSCL Lock Owner"); 100 MALLOC_DEFINE(M_NEWNFSCLLOCK, "NFSCL lck", "NFSCL Lock"); 101 MALLOC_DEFINE(M_NEWNFSV4NODE, "NEWNFSnode", "New nfs vnode"); 102 MALLOC_DEFINE(M_NEWNFSDIRECTIO, "NEWdirectio", "New nfs Direct IO buffer"); 103 MALLOC_DEFINE(M_NEWNFSDIROFF, "NFSCL diroffdiroff", 104 "New NFS directory offset data"); 105 MALLOC_DEFINE(M_NEWNFSDROLLBACK, "NFSD rollback", 106 "New NFS local lock rollback"); 107 108 /* 109 * Definition of mutex locks. 110 * newnfsd_mtx is used in nfsrvd_nfsd() to protect the nfs socket list 111 * and assorted other nfsd structures. 112 */ 113 struct mtx newnfsd_mtx; 114 struct mtx nfs_sockl_mutex; 115 struct mtx nfs_state_mutex; 116 struct mtx nfs_nameid_mutex; 117 struct mtx nfs_req_mutex; 118 struct mtx nfs_slock_mutex; 119 120 /* local functions */ 121 static int nfssvc_call(struct thread *, struct nfssvc_args *, struct ucred *); 122 123 #ifdef __NO_STRICT_ALIGNMENT 124 /* 125 * These architectures don't need re-alignment, so just return. 126 */ 127 void 128 newnfs_realign(struct mbuf **pm) 129 { 130 131 return; 132 } 133 #else /* !__NO_STRICT_ALIGNMENT */ 134 /* 135 * newnfs_realign: 136 * 137 * Check for badly aligned mbuf data and realign by copying the unaligned 138 * portion of the data into a new mbuf chain and freeing the portions 139 * of the old chain that were replaced. 140 * 141 * We cannot simply realign the data within the existing mbuf chain 142 * because the underlying buffers may contain other rpc commands and 143 * we cannot afford to overwrite them. 144 * 145 * We would prefer to avoid this situation entirely. The situation does 146 * not occur with NFS/UDP and is supposed to only occassionally occur 147 * with TCP. Use vfs.nfs.realign_count and realign_test to check this. 148 * 149 */ 150 void 151 newnfs_realign(struct mbuf **pm) 152 { 153 struct mbuf *m, *n; 154 int off, space; 155 156 ++nfs_realign_test; 157 while ((m = *pm) != NULL) { 158 if ((m->m_len & 0x3) || (mtod(m, intptr_t) & 0x3)) { 159 /* 160 * NB: we can't depend on m_pkthdr.len to help us 161 * decide what to do here. May not be worth doing 162 * the m_length calculation as m_copyback will 163 * expand the mbuf chain below as needed. 164 */ 165 space = m_length(m, NULL); 166 if (space >= MINCLSIZE) { 167 /* NB: m_copyback handles space > MCLBYTES */ 168 n = m_getcl(M_WAITOK, MT_DATA, 0); 169 } else 170 n = m_get(M_WAITOK, MT_DATA); 171 if (n == NULL) 172 return; 173 /* 174 * Align the remainder of the mbuf chain. 175 */ 176 n->m_len = 0; 177 off = 0; 178 while (m != NULL) { 179 m_copyback(n, off, m->m_len, mtod(m, caddr_t)); 180 off += m->m_len; 181 m = m->m_next; 182 } 183 m_freem(*pm); 184 *pm = n; 185 ++nfs_realign_count; 186 break; 187 } 188 pm = &m->m_next; 189 } 190 } 191 #endif /* __NO_STRICT_ALIGNMENT */ 192 193 #ifdef notdef 194 static void 195 nfsrv_object_create(struct vnode *vp, struct thread *td) 196 { 197 198 if (vp == NULL || vp->v_type != VREG) 199 return; 200 (void) vfs_object_create(vp, td, td->td_ucred); 201 } 202 #endif 203 204 /* 205 * Look up a file name. Basically just initialize stuff and call namei(). 206 */ 207 int 208 nfsrv_lookupfilename(struct nameidata *ndp, char *fname, NFSPROC_T *p) 209 { 210 int error; 211 212 NDINIT(ndp, LOOKUP, FOLLOW | LOCKLEAF | MPSAFE, UIO_USERSPACE, fname, 213 p); 214 error = namei(ndp); 215 if (!error) { 216 NDFREE(ndp, NDF_ONLY_PNBUF); 217 } 218 return (error); 219 } 220 221 /* 222 * Copy NFS uid, gids to the cred structure. 223 */ 224 void 225 newnfs_copycred(struct nfscred *nfscr, struct ucred *cr) 226 { 227 228 KASSERT(nfscr->nfsc_ngroups >= 0, 229 ("newnfs_copycred: negative nfsc_ngroups")); 230 cr->cr_uid = nfscr->nfsc_uid; 231 crsetgroups(cr, nfscr->nfsc_ngroups, nfscr->nfsc_groups); 232 } 233 234 /* 235 * Map args from nfsmsleep() to msleep(). 236 */ 237 int 238 nfsmsleep(void *chan, void *mutex, int prio, const char *wmesg, 239 struct timespec *ts) 240 { 241 u_int64_t nsecval; 242 int error, timeo; 243 244 if (ts) { 245 timeo = hz * ts->tv_sec; 246 nsecval = (u_int64_t)ts->tv_nsec; 247 nsecval = ((nsecval * ((u_int64_t)hz)) + 500000000) / 248 1000000000; 249 timeo += (int)nsecval; 250 } else { 251 timeo = 0; 252 } 253 error = msleep(chan, (struct mtx *)mutex, prio, wmesg, timeo); 254 return (error); 255 } 256 257 /* 258 * Get the file system info for the server. For now, just assume FFS. 259 */ 260 void 261 nfsvno_getfs(struct nfsfsinfo *sip, int isdgram) 262 { 263 int pref; 264 265 /* 266 * XXX 267 * There should be file system VFS OP(s) to get this information. 268 * For now, assume ufs. 269 */ 270 if (isdgram) 271 pref = NFS_MAXDGRAMDATA; 272 else 273 pref = NFS_MAXDATA; 274 sip->fs_rtmax = NFS_MAXDATA; 275 sip->fs_rtpref = pref; 276 sip->fs_rtmult = NFS_FABLKSIZE; 277 sip->fs_wtmax = NFS_MAXDATA; 278 sip->fs_wtpref = pref; 279 sip->fs_wtmult = NFS_FABLKSIZE; 280 sip->fs_dtpref = pref; 281 sip->fs_maxfilesize = 0xffffffffffffffffull; 282 sip->fs_timedelta.tv_sec = 0; 283 sip->fs_timedelta.tv_nsec = 1; 284 sip->fs_properties = (NFSV3FSINFO_LINK | 285 NFSV3FSINFO_SYMLINK | NFSV3FSINFO_HOMOGENEOUS | 286 NFSV3FSINFO_CANSETTIME); 287 } 288 289 /* 290 * Do the pathconf vnode op. 291 */ 292 int 293 nfsvno_pathconf(struct vnode *vp, int flag, register_t *retf, 294 struct ucred *cred, struct thread *p) 295 { 296 int error; 297 298 error = VOP_PATHCONF(vp, flag, retf); 299 if (error == EOPNOTSUPP || error == EINVAL) { 300 /* 301 * Some file systems return EINVAL for name arguments not 302 * supported and some return EOPNOTSUPP for this case. 303 * So the NFSv3 Pathconf RPC doesn't fail for these cases, 304 * just fake them. 305 */ 306 switch (flag) { 307 case _PC_LINK_MAX: 308 *retf = LINK_MAX; 309 break; 310 case _PC_NAME_MAX: 311 *retf = NAME_MAX; 312 break; 313 case _PC_CHOWN_RESTRICTED: 314 *retf = 1; 315 break; 316 case _PC_NO_TRUNC: 317 *retf = 1; 318 break; 319 default: 320 /* 321 * Only happens if a _PC_xxx is added to the server, 322 * but this isn't updated. 323 */ 324 *retf = 0; 325 printf("nfsrvd pathconf flag=%d not supp\n", flag); 326 }; 327 error = 0; 328 } 329 NFSEXITCODE(error); 330 return (error); 331 } 332 333 /* Fake nfsrv_atroot. Just return 0 */ 334 int 335 nfsrv_atroot(struct vnode *vp, long *retp) 336 { 337 338 return (0); 339 } 340 341 /* 342 * Set the credentials to refer to root. 343 * If only the various BSDen could agree on whether cr_gid is a separate 344 * field or cr_groups[0]... 345 */ 346 void 347 newnfs_setroot(struct ucred *cred) 348 { 349 350 cred->cr_uid = 0; 351 cred->cr_groups[0] = 0; 352 cred->cr_ngroups = 1; 353 } 354 355 /* 356 * Get the client credential. Used for Renew and recovery. 357 */ 358 struct ucred * 359 newnfs_getcred(void) 360 { 361 struct ucred *cred; 362 struct thread *td = curthread; 363 364 cred = crdup(td->td_ucred); 365 newnfs_setroot(cred); 366 return (cred); 367 } 368 369 /* 370 * Nfs timer routine 371 * Call the nfsd's timer function once/sec. 372 */ 373 void 374 newnfs_timer(void *arg) 375 { 376 static time_t lasttime = 0; 377 /* 378 * Call the server timer, if set up. 379 * The argument indicates if it is the next second and therefore 380 * leases should be checked. 381 */ 382 if (lasttime != NFSD_MONOSEC) { 383 lasttime = NFSD_MONOSEC; 384 if (nfsd_call_servertimer != NULL) 385 (*nfsd_call_servertimer)(); 386 } 387 callout_reset(&newnfsd_callout, nfscl_ticks, newnfs_timer, NULL); 388 } 389 390 391 /* 392 * Sleep for a short period of time unless errval == NFSERR_GRACE, where 393 * the sleep should be for 5 seconds. 394 * Since lbolt doesn't exist in FreeBSD-CURRENT, just use a timeout on 395 * an event that never gets a wakeup. Only return EINTR or 0. 396 */ 397 int 398 nfs_catnap(int prio, int errval, const char *wmesg) 399 { 400 static int non_event; 401 int ret; 402 403 if (errval == NFSERR_GRACE) 404 ret = tsleep(&non_event, prio, wmesg, 5 * hz); 405 else 406 ret = tsleep(&non_event, prio, wmesg, 1); 407 if (ret != EINTR) 408 ret = 0; 409 return (ret); 410 } 411 412 /* 413 * Get referral. For now, just fail. 414 */ 415 struct nfsreferral * 416 nfsv4root_getreferral(struct vnode *vp, struct vnode *dvp, u_int32_t fileno) 417 { 418 419 return (NULL); 420 } 421 422 static int 423 nfssvc_nfscommon(struct thread *td, struct nfssvc_args *uap) 424 { 425 int error; 426 427 error = nfssvc_call(td, uap, td->td_ucred); 428 NFSEXITCODE(error); 429 return (error); 430 } 431 432 static int 433 nfssvc_call(struct thread *p, struct nfssvc_args *uap, struct ucred *cred) 434 { 435 int error = EINVAL; 436 struct nfsd_idargs nid; 437 438 if (uap->flag & NFSSVC_IDNAME) { 439 error = copyin(uap->argp, (caddr_t)&nid, sizeof (nid)); 440 if (error) 441 goto out; 442 error = nfssvc_idname(&nid); 443 goto out; 444 } else if (uap->flag & NFSSVC_GETSTATS) { 445 error = copyout(&newnfsstats, 446 CAST_USER_ADDR_T(uap->argp), sizeof (newnfsstats)); 447 if (error == 0) { 448 if ((uap->flag & NFSSVC_ZEROCLTSTATS) != 0) { 449 newnfsstats.attrcache_hits = 0; 450 newnfsstats.attrcache_misses = 0; 451 newnfsstats.lookupcache_hits = 0; 452 newnfsstats.lookupcache_misses = 0; 453 newnfsstats.direofcache_hits = 0; 454 newnfsstats.direofcache_misses = 0; 455 newnfsstats.accesscache_hits = 0; 456 newnfsstats.accesscache_misses = 0; 457 newnfsstats.biocache_reads = 0; 458 newnfsstats.read_bios = 0; 459 newnfsstats.read_physios = 0; 460 newnfsstats.biocache_writes = 0; 461 newnfsstats.write_bios = 0; 462 newnfsstats.write_physios = 0; 463 newnfsstats.biocache_readlinks = 0; 464 newnfsstats.readlink_bios = 0; 465 newnfsstats.biocache_readdirs = 0; 466 newnfsstats.readdir_bios = 0; 467 newnfsstats.rpcretries = 0; 468 newnfsstats.rpcrequests = 0; 469 newnfsstats.rpctimeouts = 0; 470 newnfsstats.rpcunexpected = 0; 471 newnfsstats.rpcinvalid = 0; 472 bzero(newnfsstats.rpccnt, 473 sizeof(newnfsstats.rpccnt)); 474 } 475 if ((uap->flag & NFSSVC_ZEROSRVSTATS) != 0) { 476 newnfsstats.srvrpc_errs = 0; 477 newnfsstats.srv_errs = 0; 478 newnfsstats.srvcache_inproghits = 0; 479 newnfsstats.srvcache_idemdonehits = 0; 480 newnfsstats.srvcache_nonidemdonehits = 0; 481 newnfsstats.srvcache_misses = 0; 482 newnfsstats.srvcache_tcppeak = 0; 483 newnfsstats.srvclients = 0; 484 newnfsstats.srvopenowners = 0; 485 newnfsstats.srvopens = 0; 486 newnfsstats.srvlockowners = 0; 487 newnfsstats.srvlocks = 0; 488 newnfsstats.srvdelegates = 0; 489 newnfsstats.clopenowners = 0; 490 newnfsstats.clopens = 0; 491 newnfsstats.cllockowners = 0; 492 newnfsstats.cllocks = 0; 493 newnfsstats.cldelegates = 0; 494 newnfsstats.cllocalopenowners = 0; 495 newnfsstats.cllocalopens = 0; 496 newnfsstats.cllocallockowners = 0; 497 newnfsstats.cllocallocks = 0; 498 bzero(newnfsstats.srvrpccnt, 499 sizeof(newnfsstats.srvrpccnt)); 500 bzero(newnfsstats.cbrpccnt, 501 sizeof(newnfsstats.cbrpccnt)); 502 } 503 } 504 goto out; 505 } else if (uap->flag & NFSSVC_NFSUSERDPORT) { 506 u_short sockport; 507 508 error = copyin(uap->argp, (caddr_t)&sockport, 509 sizeof (u_short)); 510 if (!error) 511 error = nfsrv_nfsuserdport(sockport, p); 512 } else if (uap->flag & NFSSVC_NFSUSERDDELPORT) { 513 nfsrv_nfsuserddelport(); 514 error = 0; 515 } 516 517 out: 518 NFSEXITCODE(error); 519 return (error); 520 } 521 522 /* 523 * called by all three modevent routines, so that it gets things 524 * initialized soon enough. 525 */ 526 void 527 newnfs_portinit(void) 528 { 529 static int inited = 0; 530 531 if (inited) 532 return; 533 inited = 1; 534 /* Initialize SMP locks used by both client and server. */ 535 mtx_init(&newnfsd_mtx, "newnfsd_mtx", NULL, MTX_DEF); 536 mtx_init(&nfs_state_mutex, "nfs_state_mutex", NULL, MTX_DEF); 537 } 538 539 /* 540 * Determine if the file system supports NFSv4 ACLs. 541 * Return 1 if it does, 0 otherwise. 542 */ 543 int 544 nfs_supportsnfsv4acls(struct vnode *vp) 545 { 546 int error; 547 register_t retval; 548 549 ASSERT_VOP_LOCKED(vp, "nfs supports nfsv4acls"); 550 551 if (nfsrv_useacl == 0) 552 return (0); 553 error = VOP_PATHCONF(vp, _PC_ACL_NFS4, &retval); 554 if (error == 0 && retval != 0) 555 return (1); 556 return (0); 557 } 558 559 extern int (*nfsd_call_nfscommon)(struct thread *, struct nfssvc_args *); 560 561 /* 562 * Called once to initialize data structures... 563 */ 564 static int 565 nfscommon_modevent(module_t mod, int type, void *data) 566 { 567 int error = 0; 568 static int loaded = 0; 569 570 switch (type) { 571 case MOD_LOAD: 572 if (loaded) 573 goto out; 574 newnfs_portinit(); 575 mtx_init(&nfs_nameid_mutex, "nfs_nameid_mutex", NULL, MTX_DEF); 576 mtx_init(&nfs_sockl_mutex, "nfs_sockl_mutex", NULL, MTX_DEF); 577 mtx_init(&nfs_slock_mutex, "nfs_slock_mutex", NULL, MTX_DEF); 578 mtx_init(&nfs_req_mutex, "nfs_req_mutex", NULL, MTX_DEF); 579 mtx_init(&nfsrv_nfsuserdsock.nr_mtx, "nfsuserd", NULL, 580 MTX_DEF); 581 callout_init(&newnfsd_callout, CALLOUT_MPSAFE); 582 newnfs_init(); 583 nfsd_call_nfscommon = nfssvc_nfscommon; 584 loaded = 1; 585 break; 586 587 case MOD_UNLOAD: 588 if (newnfs_numnfsd != 0 || nfsrv_nfsuserd != 0 || 589 nfs_numnfscbd != 0) { 590 error = EBUSY; 591 break; 592 } 593 594 nfsd_call_nfscommon = NULL; 595 callout_drain(&newnfsd_callout); 596 /* and get rid of the mutexes */ 597 mtx_destroy(&nfs_nameid_mutex); 598 mtx_destroy(&newnfsd_mtx); 599 mtx_destroy(&nfs_state_mutex); 600 mtx_destroy(&nfs_sockl_mutex); 601 mtx_destroy(&nfs_slock_mutex); 602 mtx_destroy(&nfs_req_mutex); 603 mtx_destroy(&nfsrv_nfsuserdsock.nr_mtx); 604 loaded = 0; 605 break; 606 default: 607 error = EOPNOTSUPP; 608 break; 609 } 610 611 out: 612 NFSEXITCODE(error); 613 return error; 614 } 615 static moduledata_t nfscommon_mod = { 616 "nfscommon", 617 nfscommon_modevent, 618 NULL, 619 }; 620 DECLARE_MODULE(nfscommon, nfscommon_mod, SI_SUB_VFS, SI_ORDER_ANY); 621 622 /* So that loader and kldload(2) can find us, wherever we are.. */ 623 MODULE_VERSION(nfscommon, 1); 624 MODULE_DEPEND(nfscommon, nfssvc, 1, 1, 1); 625 MODULE_DEPEND(nfscommon, krpc, 1, 1, 1); 626 627