Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]
FreeBSD/Linux Kernel Cross Reference
sys/nfs/nfs_syscalls.c
Version:
- FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10
SearchContext: - none - 3 - 10
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. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)nfs_syscalls.c 8.5 (Berkeley) 3/30/95 37 * $FreeBSD$ 38 */ 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/sysproto.h> 43 #include <sys/kernel.h> 44 #include <sys/sysctl.h> 45 #include <sys/file.h> 46 #include <sys/filedesc.h> 47 #include <sys/vnode.h> 48 #include <sys/malloc.h> 49 #include <sys/mount.h> 50 #include <sys/proc.h> 51 #include <sys/buf.h> 52 #include <sys/mbuf.h> 53 #include <sys/socket.h> 54 #include <sys/socketvar.h> 55 #include <sys/domain.h> 56 #include <sys/protosw.h> 57 #include <sys/namei.h> 58 #include <vm/vm_zone.h> 59 60 #include <netinet/in.h> 61 #include <netinet/tcp.h> 62 #include <nfs/xdr_subs.h> 63 #include <nfs/rpcv2.h> 64 #include <nfs/nfsproto.h> 65 #include <nfs/nfs.h> 66 #include <nfs/nfsm_subs.h> 67 #include <nfs/nfsrvcache.h> 68 #include <nfs/nfsmount.h> 69 #include <nfs/nfsnode.h> 70 #include <nfs/nqnfs.h> 71 #include <nfs/nfsrtt.h> 72 73 static MALLOC_DEFINE(M_NFSSVC, "NFS srvsock", "Nfs server structure"); 74 75 /* Global defs. */ 76 extern int32_t (*nfsrv3_procs[NFS_NPROCS]) __P((struct nfsrv_descript *nd, 77 struct nfssvc_sock *slp, 78 struct proc *procp, 79 struct mbuf **mreqp)); 80 extern int nfs_numasync; 81 extern time_t nqnfsstarttime; 82 extern int nqsrv_writeslack; 83 extern int nfsrtton; 84 extern struct nfsstats nfsstats; 85 extern int nfsrvw_procrastinate; 86 extern int nfsrvw_procrastinate_v3; 87 static int nuidhash_max = NFS_MAXUIDHASH; 88 89 #ifndef NFS_NOSERVER 90 static void nfsrv_zapsock __P((struct nfssvc_sock *slp)); 91 #endif 92 static int nfssvc_iod __P((struct proc *)); 93 94 #define TRUE 1 95 #define FALSE 0 96 97 static int nfs_asyncdaemon[NFS_MAXASYNCDAEMON]; 98 99 SYSCTL_DECL(_vfs_nfs); 100 101 #ifndef NFS_NOSERVER 102 int nfsd_waiting = 0; 103 static struct nfsdrt nfsdrt; 104 static int nfs_numnfsd = 0; 105 static int notstarted = 1; 106 static int modify_flag = 0; 107 static void nfsd_rt __P((int sotype, struct nfsrv_descript *nd, 108 int cacherep)); 109 static int nfssvc_addsock __P((struct file *, struct sockaddr *, 110 struct proc *)); 111 static int nfssvc_nfsd __P((struct nfsd_srvargs *,caddr_t,struct proc *)); 112 113 static int nfs_privport = 0; 114 SYSCTL_INT(_vfs_nfs, NFS_NFSPRIVPORT, nfs_privport, CTLFLAG_RW, &nfs_privport, 0, ""); 115 SYSCTL_INT(_vfs_nfs, OID_AUTO, gatherdelay, CTLFLAG_RW, &nfsrvw_procrastinate, 0, ""); 116 SYSCTL_INT(_vfs_nfs, OID_AUTO, gatherdelay_v3, CTLFLAG_RW, &nfsrvw_procrastinate_v3, 0, ""); 117 118 /* 119 * NFS server system calls 120 */ 121 122 #endif /* NFS_NOSERVER */ 123 /* 124 * Nfs server psuedo system call for the nfsd's 125 * Based on the flag value it either: 126 * - adds a socket to the selection list 127 * - remains in the kernel as an nfsd 128 * - remains in the kernel as an nfsiod 129 */ 130 #ifndef _SYS_SYSPROTO_H_ 131 struct nfssvc_args { 132 int flag; 133 caddr_t argp; 134 }; 135 #endif 136 int 137 nfssvc(p, uap) 138 struct proc *p; 139 register struct nfssvc_args *uap; 140 { 141 #ifndef NFS_NOSERVER 142 struct nameidata nd; 143 struct file *fp; 144 struct sockaddr *nam; 145 struct nfsd_args nfsdarg; 146 struct nfsd_srvargs nfsd_srvargs, *nsd = &nfsd_srvargs; 147 struct nfsd_cargs ncd; 148 struct nfsd *nfsd; 149 struct nfssvc_sock *slp; 150 struct nfsuid *nuidp; 151 struct nfsmount *nmp; 152 #endif /* NFS_NOSERVER */ 153 int error; 154 155 /* 156 * Must be super user 157 */ 158 error = suser(p); 159 if(error) 160 return (error); 161 while (nfssvc_sockhead_flag & SLP_INIT) { 162 nfssvc_sockhead_flag |= SLP_WANTINIT; 163 (void) tsleep((caddr_t)&nfssvc_sockhead, PSOCK, "nfsd init", 0); 164 } 165 if (uap->flag & NFSSVC_BIOD) 166 error = nfssvc_iod(p); 167 #ifdef NFS_NOSERVER 168 else 169 error = ENXIO; 170 #else /* !NFS_NOSERVER */ 171 else if (uap->flag & NFSSVC_MNTD) { 172 error = copyin(uap->argp, (caddr_t)&ncd, sizeof (ncd)); 173 if (error) 174 return (error); 175 NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, 176 ncd.ncd_dirp, p); 177 error = namei(&nd); 178 if (error) 179 return (error); 180 NDFREE(&nd, NDF_ONLY_PNBUF); 181 if ((nd.ni_vp->v_flag & VROOT) == 0) 182 error = EINVAL; 183 nmp = VFSTONFS(nd.ni_vp->v_mount); 184 vput(nd.ni_vp); 185 if (error) 186 return (error); 187 if ((nmp->nm_state & NFSSTA_MNTD) && 188 (uap->flag & NFSSVC_GOTAUTH) == 0) 189 return (0); 190 nmp->nm_state |= NFSSTA_MNTD; 191 error = nqnfs_clientd(nmp, p->p_ucred, &ncd, uap->flag, 192 uap->argp, p); 193 } else if (uap->flag & NFSSVC_ADDSOCK) { 194 error = copyin(uap->argp, (caddr_t)&nfsdarg, sizeof(nfsdarg)); 195 if (error) 196 return (error); 197 error = holdsock(p->p_fd, nfsdarg.sock, &fp); 198 if (error) 199 return (error); 200 /* 201 * Get the client address for connected sockets. 202 */ 203 if (nfsdarg.name == NULL || nfsdarg.namelen == 0) 204 nam = (struct sockaddr *)0; 205 else { 206 error = getsockaddr(&nam, nfsdarg.name, 207 nfsdarg.namelen); 208 if (error) { 209 fdrop(fp, p); 210 return (error); 211 } 212 } 213 error = nfssvc_addsock(fp, nam, p); 214 fdrop(fp, p); 215 } else { 216 error = copyin(uap->argp, (caddr_t)nsd, sizeof (*nsd)); 217 if (error) 218 return (error); 219 if ((uap->flag & NFSSVC_AUTHIN) && 220 ((nfsd = nsd->nsd_nfsd)) != NULL && 221 (nfsd->nfsd_slp->ns_flag & SLP_VALID)) { 222 slp = nfsd->nfsd_slp; 223 224 /* 225 * First check to see if another nfsd has already 226 * added this credential. 227 */ 228 for (nuidp = NUIDHASH(slp,nsd->nsd_cr.cr_uid)->lh_first; 229 nuidp != 0; nuidp = nuidp->nu_hash.le_next) { 230 if (nuidp->nu_cr.cr_uid == nsd->nsd_cr.cr_uid && 231 (!nfsd->nfsd_nd->nd_nam2 || 232 netaddr_match(NU_NETFAM(nuidp), 233 &nuidp->nu_haddr, nfsd->nfsd_nd->nd_nam2))) 234 break; 235 } 236 if (nuidp) { 237 nfsrv_setcred(&nuidp->nu_cr,&nfsd->nfsd_nd->nd_cr); 238 nfsd->nfsd_nd->nd_flag |= ND_KERBFULL; 239 } else { 240 /* 241 * Nope, so we will. 242 */ 243 if (slp->ns_numuids < nuidhash_max) { 244 slp->ns_numuids++; 245 nuidp = (struct nfsuid *) 246 malloc(sizeof (struct nfsuid), M_NFSUID, 247 M_WAITOK); 248 } else 249 nuidp = (struct nfsuid *)0; 250 if ((slp->ns_flag & SLP_VALID) == 0) { 251 if (nuidp) 252 free((caddr_t)nuidp, M_NFSUID); 253 } else { 254 if (nuidp == (struct nfsuid *)0) { 255 nuidp = slp->ns_uidlruhead.tqh_first; 256 LIST_REMOVE(nuidp, nu_hash); 257 TAILQ_REMOVE(&slp->ns_uidlruhead, nuidp, 258 nu_lru); 259 if (nuidp->nu_flag & NU_NAM) 260 FREE(nuidp->nu_nam, M_SONAME); 261 } 262 nuidp->nu_flag = 0; 263 nuidp->nu_cr = nsd->nsd_cr; 264 if (nuidp->nu_cr.cr_ngroups > NGROUPS) 265 nuidp->nu_cr.cr_ngroups = NGROUPS; 266 nuidp->nu_cr.cr_ref = 1; 267 nuidp->nu_timestamp = nsd->nsd_timestamp; 268 nuidp->nu_expire = time_second + nsd->nsd_ttl; 269 /* 270 * and save the session key in nu_key. 271 */ 272 bcopy(nsd->nsd_key, nuidp->nu_key, 273 sizeof (nsd->nsd_key)); 274 if (nfsd->nfsd_nd->nd_nam2) { 275 struct sockaddr_in *saddr; 276 277 saddr = (struct sockaddr_in *) 278 nfsd->nfsd_nd->nd_nam2; 279 switch (saddr->sin_family) { 280 case AF_INET: 281 nuidp->nu_flag |= NU_INETADDR; 282 nuidp->nu_inetaddr = 283 saddr->sin_addr.s_addr; 284 break; 285 case AF_ISO: 286 default: 287 nuidp->nu_flag |= NU_NAM; 288 nuidp->nu_nam = 289 dup_sockaddr(nfsd->nfsd_nd-> 290 nd_nam2, 1); 291 break; 292 }; 293 } 294 TAILQ_INSERT_TAIL(&slp->ns_uidlruhead, nuidp, 295 nu_lru); 296 LIST_INSERT_HEAD(NUIDHASH(slp, nsd->nsd_uid), 297 nuidp, nu_hash); 298 nfsrv_setcred(&nuidp->nu_cr, 299 &nfsd->nfsd_nd->nd_cr); 300 nfsd->nfsd_nd->nd_flag |= ND_KERBFULL; 301 } 302 } 303 } 304 if ((uap->flag & NFSSVC_AUTHINFAIL) && (nfsd = nsd->nsd_nfsd)) 305 nfsd->nfsd_flag |= NFSD_AUTHFAIL; 306 error = nfssvc_nfsd(nsd, uap->argp, p); 307 } 308 #endif /* NFS_NOSERVER */ 309 if (error == EINTR || error == ERESTART) 310 error = 0; 311 return (error); 312 } 313 314 #ifndef NFS_NOSERVER 315 /* 316 * Adds a socket to the list for servicing by nfsds. 317 */ 318 static int 319 nfssvc_addsock(fp, mynam, p) 320 struct file *fp; 321 struct sockaddr *mynam; 322 struct proc *p; 323 { 324 register int siz; 325 register struct nfssvc_sock *slp; 326 register struct socket *so; 327 int error, s; 328 329 so = (struct socket *)fp->f_data; 330 #if 0 331 tslp = (struct nfssvc_sock *)0; 332 /* 333 * Add it to the list, as required. 334 */ 335 if (so->so_proto->pr_protocol == IPPROTO_UDP) { 336 tslp = nfs_udpsock; 337 if (tslp->ns_flag & SLP_VALID) { 338 if (mynam != NULL) 339 FREE(mynam, M_SONAME); 340 return (EPERM); 341 } 342 } 343 #endif 344 if (so->so_type == SOCK_STREAM) 345 siz = NFS_MAXPACKET + sizeof (u_long); 346 else 347 siz = NFS_MAXPACKET; 348 error = soreserve(so, siz, siz); 349 if (error) { 350 if (mynam != NULL) 351 FREE(mynam, M_SONAME); 352 return (error); 353 } 354 355 /* 356 * Set protocol specific options { for now TCP only } and 357 * reserve some space. For datagram sockets, this can get called 358 * repeatedly for the same socket, but that isn't harmful. 359 */ 360 if (so->so_type == SOCK_STREAM) { 361 struct sockopt sopt; 362 int val; 363 364 bzero(&sopt, sizeof sopt); 365 sopt.sopt_level = SOL_SOCKET; 366 sopt.sopt_name = SO_KEEPALIVE; 367 sopt.sopt_val = &val; 368 sopt.sopt_valsize = sizeof val; 369 val = 1; 370 sosetopt(so, &sopt); 371 } 372 if (so->so_proto->pr_domain->dom_family == AF_INET && 373 so->so_proto->pr_protocol == IPPROTO_TCP) { 374 struct sockopt sopt; 375 int val; 376 377 bzero(&sopt, sizeof sopt); 378 sopt.sopt_level = IPPROTO_TCP; 379 sopt.sopt_name = TCP_NODELAY; 380 sopt.sopt_val = &val; 381 sopt.sopt_valsize = sizeof val; 382 val = 1; 383 sosetopt(so, &sopt); 384 } 385 so->so_rcv.sb_flags &= ~SB_NOINTR; 386 so->so_rcv.sb_timeo = 0; 387 so->so_snd.sb_flags &= ~SB_NOINTR; 388 so->so_snd.sb_timeo = 0; 389 390 slp = (struct nfssvc_sock *) 391 malloc(sizeof (struct nfssvc_sock), M_NFSSVC, M_WAITOK); 392 bzero((caddr_t)slp, sizeof (struct nfssvc_sock)); 393 STAILQ_INIT(&slp->ns_rec); 394 TAILQ_INIT(&slp->ns_uidlruhead); 395 TAILQ_INSERT_TAIL(&nfssvc_sockhead, slp, ns_chain); 396 397 slp->ns_so = so; 398 slp->ns_nam = mynam; 399 fp->f_count++; 400 slp->ns_fp = fp; 401 s = splnet(); 402 so->so_upcallarg = (caddr_t)slp; 403 so->so_upcall = nfsrv_rcv; 404 so->so_rcv.sb_flags |= SB_UPCALL; 405 slp->ns_flag = (SLP_VALID | SLP_NEEDQ); 406 nfsrv_wakenfsd(slp); 407 splx(s); 408 return (0); 409 } 410 411 /* 412 * Called by nfssvc() for nfsds. Just loops around servicing rpc requests 413 * until it is killed by a signal. 414 */ 415 static int 416 nfssvc_nfsd(nsd, argp, p) 417 struct nfsd_srvargs *nsd; 418 caddr_t argp; 419 struct proc *p; 420 { 421 register int siz; 422 register struct nfssvc_sock *slp; 423 struct nfsd *nfsd = nsd->nsd_nfsd; 424 struct nfsrv_descript *nd = NULL; 425 struct mbuf *m, *mreq; 426 int error = 0, cacherep, s, sotype, writes_todo; 427 int procrastinate; 428 u_quad_t cur_usec; 429 430 #ifndef nolint 431 cacherep = RC_DOIT; 432 writes_todo = 0; 433 #endif 434 if (nfsd == (struct nfsd *)0) { 435 nsd->nsd_nfsd = nfsd = (struct nfsd *) 436 malloc(sizeof (struct nfsd), M_NFSD, M_WAITOK); 437 bzero((caddr_t)nfsd, sizeof (struct nfsd)); 438 s = splnet(); 439 nfsd->nfsd_procp = p; 440 TAILQ_INSERT_TAIL(&nfsd_head, nfsd, nfsd_chain); 441 nfs_numnfsd++; 442 } else 443 s = splnet(); 444 445 /* 446 * Loop getting rpc requests until SIGKILL. 447 */ 448 for (;;) { 449 if ((nfsd->nfsd_flag & NFSD_REQINPROG) == 0) { 450 while (nfsd->nfsd_slp == (struct nfssvc_sock *)0 && 451 (nfsd_head_flag & NFSD_CHECKSLP) == 0) { 452 nfsd->nfsd_flag |= NFSD_WAITING; 453 nfsd_waiting++; 454 error = tsleep((caddr_t)nfsd, PSOCK | PCATCH, 455 "nfsd", 0); 456 nfsd_waiting--; 457 if (error) 458 goto done; 459 } 460 if (nfsd->nfsd_slp == (struct nfssvc_sock *)0 && 461 (nfsd_head_flag & NFSD_CHECKSLP) != 0) { 462 for (slp = nfssvc_sockhead.tqh_first; slp != 0; 463 slp = slp->ns_chain.tqe_next) { 464 if ((slp->ns_flag & (SLP_VALID | SLP_DOREC)) 465 == (SLP_VALID | SLP_DOREC)) { 466 slp->ns_flag &= ~SLP_DOREC; 467 slp->ns_sref++; 468 nfsd->nfsd_slp = slp; 469 break; 470 } 471 } 472 if (slp == 0) 473 nfsd_head_flag &= ~NFSD_CHECKSLP; 474 } 475 if ((slp = nfsd->nfsd_slp) == (struct nfssvc_sock *)0) 476 continue; 477 if (slp->ns_flag & SLP_VALID) { 478 if (slp->ns_flag & SLP_DISCONN) 479 nfsrv_zapsock(slp); 480 else if (slp->ns_flag & SLP_NEEDQ) { 481 slp->ns_flag &= ~SLP_NEEDQ; 482 (void) nfs_slplock(slp, 1); 483 nfsrv_rcv(slp->ns_so, (caddr_t)slp, 484 M_WAIT); 485 nfs_slpunlock(slp); 486 } 487 error = nfsrv_dorec(slp, nfsd, &nd); 488 cur_usec = nfs_curusec(); 489 if (error && slp->ns_tq.lh_first && 490 slp->ns_tq.lh_first->nd_time <= cur_usec) { 491 error = 0; 492 cacherep = RC_DOIT; 493 writes_todo = 1; 494 } else 495 writes_todo = 0; 496 nfsd->nfsd_flag |= NFSD_REQINPROG; 497 } 498 } else { 499 error = 0; 500 slp = nfsd->nfsd_slp; 501 } 502 if (error || (slp->ns_flag & SLP_VALID) == 0) { 503 if (nd) { 504 free((caddr_t)nd, M_NFSRVDESC); 505 nd = NULL; 506 } 507 nfsd->nfsd_slp = (struct nfssvc_sock *)0; 508 nfsd->nfsd_flag &= ~NFSD_REQINPROG; 509 nfsrv_slpderef(slp); 510 continue; 511 } 512 splx(s); 513 sotype = slp->ns_so->so_type; 514 if (nd) { 515 getmicrotime(&nd->nd_starttime); 516 if (nd->nd_nam2) 517 nd->nd_nam = nd->nd_nam2; 518 else 519 nd->nd_nam = slp->ns_nam; 520 521 /* 522 * Check to see if authorization is needed. 523 */ 524 if (nfsd->nfsd_flag & NFSD_NEEDAUTH) { 525 nfsd->nfsd_flag &= ~NFSD_NEEDAUTH; 526 nsd->nsd_haddr = 527 ((struct sockaddr_in *) 528 nd->nd_nam)->sin_addr.s_addr; 529 nsd->nsd_authlen = nfsd->nfsd_authlen; 530 nsd->nsd_verflen = nfsd->nfsd_verflen; 531 if (!copyout(nfsd->nfsd_authstr,nsd->nsd_authstr, 532 nfsd->nfsd_authlen) && 533 !copyout(nfsd->nfsd_verfstr, nsd->nsd_verfstr, 534 nfsd->nfsd_verflen) && 535 !copyout((caddr_t)nsd, argp, sizeof (*nsd))) 536 return (ENEEDAUTH); 537 cacherep = RC_DROPIT; 538 } else 539 cacherep = nfsrv_getcache(nd, slp, &mreq); 540 541 /* 542 * Check for just starting up for NQNFS and send 543 * fake "try again later" replies to the NQNFS clients. 544 */ 545 if (notstarted && nqnfsstarttime <= time_second) { 546 if (modify_flag) { 547 nqnfsstarttime = time_second + nqsrv_writeslack; 548 modify_flag = 0; 549 } else 550 notstarted = 0; 551 } 552 if (notstarted) { 553 if ((nd->nd_flag & ND_NQNFS) == 0) 554 cacherep = RC_DROPIT; 555 else if (nd->nd_procnum != NFSPROC_WRITE) { 556 nd->nd_procnum = NFSPROC_NOOP; 557 nd->nd_repstat = NQNFS_TRYLATER; 558 cacherep = RC_DOIT; 559 } else 560 modify_flag = 1; 561 } else if (nfsd->nfsd_flag & NFSD_AUTHFAIL) { 562 nfsd->nfsd_flag &= ~NFSD_AUTHFAIL; 563 nd->nd_procnum = NFSPROC_NOOP; 564 nd->nd_repstat = (NFSERR_AUTHERR | AUTH_TOOWEAK); 565 cacherep = RC_DOIT; 566 } else if (nfs_privport) { 567 /* Check if source port is privileged */ 568 u_short port; 569 struct sockaddr *nam = nd->nd_nam; 570 struct sockaddr_in *sin; 571 572 sin = (struct sockaddr_in *)nam; 573 port = ntohs(sin->sin_port); 574 if (port >= IPPORT_RESERVED && 575 nd->nd_procnum != NFSPROC_NULL) { 576 nd->nd_procnum = NFSPROC_NOOP; 577 nd->nd_repstat = (NFSERR_AUTHERR | AUTH_TOOWEAK); 578 cacherep = RC_DOIT; 579 printf("NFS request from unprivileged port (%s:%d)\n", 580 inet_ntoa(sin->sin_addr), port); 581 } 582 } 583 584 } 585 586 /* 587 * Loop to get all the write rpc relies that have been 588 * gathered together. 589 */ 590 do { 591 switch (cacherep) { 592 case RC_DOIT: 593 if (nd && (nd->nd_flag & ND_NFSV3)) 594 procrastinate = nfsrvw_procrastinate_v3; 595 else 596 procrastinate = nfsrvw_procrastinate; 597 if (writes_todo || (nd->nd_procnum == NFSPROC_WRITE && 598 procrastinate > 0 && !notstarted)) 599 error = nfsrv_writegather(&nd, slp, 600 nfsd->nfsd_procp, &mreq); 601 else 602 error = (*(nfsrv3_procs[nd->nd_procnum]))(nd, 603 slp, nfsd->nfsd_procp, &mreq); 604 if (mreq == NULL) 605 break; 606 if (error != 0 && error != NFSERR_RETVOID) { 607 if (nd->nd_procnum != NQNFSPROC_VACATED) 608 nfsstats.srv_errs++; 609 nfsrv_updatecache(nd, FALSE, mreq); 610 if (nd->nd_nam2) 611 FREE(nd->nd_nam2, M_SONAME); 612 break; 613 } 614 nfsstats.srvrpccnt[nd->nd_procnum]++; 615 nfsrv_updatecache(nd, TRUE, mreq); 616 nd->nd_mrep = (struct mbuf *)0; 617 case RC_REPLY: 618 m = mreq; 619 siz = 0; 620 while (m) { 621 siz += m->m_len; 622 m = m->m_next; 623 } 624 if (siz <= 0 || siz > NFS_MAXPACKET) { 625 printf("mbuf siz=%d\n",siz); 626 panic("Bad nfs svc reply"); 627 } 628 m = mreq; 629 m->m_pkthdr.len = siz; 630 m->m_pkthdr.rcvif = (struct ifnet *)0; 631 /* 632 * For stream protocols, prepend a Sun RPC 633 * Record Mark. 634 */ 635 if (sotype == SOCK_STREAM) { 636 M_PREPEND(m, NFSX_UNSIGNED, M_WAIT); 637 *mtod(m, u_int32_t *) = htonl(0x80000000 | siz); 638 } 639 if (slp->ns_so->so_proto->pr_flags & PR_CONNREQUIRED) 640 (void) nfs_slplock(slp, 1); 641 if (slp->ns_flag & SLP_VALID) 642 error = nfs_send(slp->ns_so, nd->nd_nam2, m, NULL); 643 else { 644 error = EPIPE; 645 m_freem(m); 646 } 647 if (nfsrtton) 648 nfsd_rt(sotype, nd, cacherep); 649 if (nd->nd_nam2) 650 FREE(nd->nd_nam2, M_SONAME); 651 if (nd->nd_mrep) 652 m_freem(nd->nd_mrep); 653 if (error == EPIPE) 654 nfsrv_zapsock(slp); 655 if (slp->ns_so->so_proto->pr_flags & PR_CONNREQUIRED) 656 nfs_slpunlock(slp); 657 if (error == EINTR || error == ERESTART) { 658 free((caddr_t)nd, M_NFSRVDESC); 659 nfsrv_slpderef(slp); 660 s = splnet(); 661 goto done; 662 } 663 break; 664 case RC_DROPIT: 665 if (nfsrtton) 666 nfsd_rt(sotype, nd, cacherep); 667 m_freem(nd->nd_mrep); 668 if (nd->nd_nam2) 669 FREE(nd->nd_nam2, M_SONAME); 670 break; 671 }; 672 if (nd) { 673 FREE((caddr_t)nd, M_NFSRVDESC); 674 nd = NULL; 675 } 676 677 /* 678 * Check to see if there are outstanding writes that 679 * need to be serviced. 680 */ 681 cur_usec = nfs_curusec(); 682 s = splsoftclock(); 683 if (slp->ns_tq.lh_first && 684 slp->ns_tq.lh_first->nd_time <= cur_usec) { 685 cacherep = RC_DOIT; 686 writes_todo = 1; 687 } else 688 writes_todo = 0; 689 splx(s); 690 } while (writes_todo); 691 s = splnet(); 692 if (nfsrv_dorec(slp, nfsd, &nd)) { 693 nfsd->nfsd_flag &= ~NFSD_REQINPROG; 694 nfsd->nfsd_slp = NULL; 695 nfsrv_slpderef(slp); 696 } 697 } 698 done: 699 TAILQ_REMOVE(&nfsd_head, nfsd, nfsd_chain); 700 splx(s); 701 free((caddr_t)nfsd, M_NFSD); 702 nsd->nsd_nfsd = (struct nfsd *)0; 703 if (--nfs_numnfsd == 0) 704 nfsrv_init(TRUE); /* Reinitialize everything */ 705 return (error); 706 } 707 708 /* 709 * Shut down a socket associated with an nfssvc_sock structure. 710 * Should be called with the send lock set, if required. 711 * The trick here is to increment the sref at the start, so that the nfsds 712 * will stop using it and clear ns_flag at the end so that it will not be 713 * reassigned during cleanup. 714 */ 715 static void 716 nfsrv_zapsock(slp) 717 register struct nfssvc_sock *slp; 718 { 719 register struct nfsuid *nuidp, *nnuidp; 720 register struct nfsrv_descript *nwp, *nnwp; 721 struct socket *so; 722 struct file *fp; 723 struct nfsrv_rec *rec; 724 int s; 725 726 slp->ns_flag &= ~SLP_ALLFLAGS; 727 fp = slp->ns_fp; 728 if (fp) { 729 slp->ns_fp = (struct file *)0; 730 so = slp->ns_so; 731 so->so_rcv.sb_flags &= ~SB_UPCALL; 732 so->so_upcall = NULL; 733 so->so_upcallarg = NULL; 734 soshutdown(so, 2); 735 closef(fp, (struct proc *)0); 736 if (slp->ns_nam) 737 FREE(slp->ns_nam, M_SONAME); 738 m_freem(slp->ns_raw); 739 while ((rec = STAILQ_FIRST(&slp->ns_rec)) != NULL) { 740 STAILQ_REMOVE_HEAD(&slp->ns_rec, nr_link); 741 if (rec->nr_address) 742 FREE(rec->nr_address, M_SONAME); 743 m_freem(rec->nr_packet); 744 free(rec, M_NFSRVDESC); 745 } 746 for (nuidp = slp->ns_uidlruhead.tqh_first; nuidp != 0; 747 nuidp = nnuidp) { 748 nnuidp = nuidp->nu_lru.tqe_next; 749 LIST_REMOVE(nuidp, nu_hash); 750 TAILQ_REMOVE(&slp->ns_uidlruhead, nuidp, nu_lru); 751 if (nuidp->nu_flag & NU_NAM) 752 FREE(nuidp->nu_nam, M_SONAME); 753 free((caddr_t)nuidp, M_NFSUID); 754 } 755 s = splsoftclock(); 756 for (nwp = slp->ns_tq.lh_first; nwp; nwp = nnwp) { 757 nnwp = nwp->nd_tq.le_next; 758 LIST_REMOVE(nwp, nd_tq); 759 free((caddr_t)nwp, M_NFSRVDESC); 760 } 761 LIST_INIT(&slp->ns_tq); 762 splx(s); 763 } 764 } 765 766 /* 767 * Derefence a server socket structure. If it has no more references and 768 * is no longer valid, you can throw it away. 769 */ 770 void 771 nfsrv_slpderef(slp) 772 register struct nfssvc_sock *slp; 773 { 774 if (--(slp->ns_sref) == 0 && (slp->ns_flag & SLP_VALID) == 0) { 775 TAILQ_REMOVE(&nfssvc_sockhead, slp, ns_chain); 776 free((caddr_t)slp, M_NFSSVC); 777 } 778 } 779 780 /* 781 * Lock a socket against others. 782 */ 783 int 784 nfs_slplock(slp, wait) 785 register struct nfssvc_sock *slp; 786 int wait; 787 { 788 int *statep = &slp->ns_solock; 789 790 if (!wait && (*statep & NFSSTA_SNDLOCK)) 791 return(0); /* already locked, fail */ 792 while (*statep & NFSSTA_SNDLOCK) { 793 *statep |= NFSSTA_WANTSND; 794 (void) tsleep((caddr_t)statep, PZERO - 1, "nfsslplck", 0); 795 } 796 *statep |= NFSSTA_SNDLOCK; 797 return (1); 798 } 799 800 /* 801 * Unlock the stream socket for others. 802 */ 803 void 804 nfs_slpunlock(slp) 805 register struct nfssvc_sock *slp; 806 { 807 int *statep = &slp->ns_solock; 808 809 if ((*statep & NFSSTA_SNDLOCK) == 0) 810 panic("nfs slpunlock"); 811 *statep &= ~NFSSTA_SNDLOCK; 812 if (*statep & NFSSTA_WANTSND) { 813 *statep &= ~NFSSTA_WANTSND; 814 wakeup((caddr_t)statep); 815 } 816 } 817 818 /* 819 * Initialize the data structures for the server. 820 * Handshake with any new nfsds starting up to avoid any chance of 821 * corruption. 822 */ 823 void 824 nfsrv_init(terminating) 825 int terminating; 826 { 827 register struct nfssvc_sock *slp, *nslp; 828 829 if (nfssvc_sockhead_flag & SLP_INIT) 830 panic("nfsd init"); 831 nfssvc_sockhead_flag |= SLP_INIT; 832 if (terminating) { 833 for (slp = nfssvc_sockhead.tqh_first; slp != 0; slp = nslp) { 834 nslp = slp->ns_chain.tqe_next; 835 if (slp->ns_flag & SLP_VALID) 836 nfsrv_zapsock(slp); 837 TAILQ_REMOVE(&nfssvc_sockhead, slp, ns_chain); 838 free((caddr_t)slp, M_NFSSVC); 839 } 840 nfsrv_cleancache(); /* And clear out server cache */ 841 } else 842 nfs_pub.np_valid = 0; 843 844 TAILQ_INIT(&nfssvc_sockhead); 845 nfssvc_sockhead_flag &= ~SLP_INIT; 846 if (nfssvc_sockhead_flag & SLP_WANTINIT) { 847 nfssvc_sockhead_flag &= ~SLP_WANTINIT; 848 wakeup((caddr_t)&nfssvc_sockhead); 849 } 850 851 TAILQ_INIT(&nfsd_head); 852 nfsd_head_flag &= ~NFSD_CHECKSLP; 853 854 #if 0 855 nfs_udpsock = (struct nfssvc_sock *) 856 malloc(sizeof (struct nfssvc_sock), M_NFSSVC, M_WAITOK); 857 bzero((caddr_t)nfs_udpsock, sizeof (struct nfssvc_sock)); 858 STAILQ_INIT(&nfs_udpsock->ns_rec); 859 TAILQ_INIT(&nfs_udpsock->ns_uidlruhead); 860 TAILQ_INSERT_HEAD(&nfssvc_sockhead, nfs_udpsock, ns_chain); 861 862 nfs_cltpsock = (struct nfssvc_sock *) 863 malloc(sizeof (struct nfssvc_sock), M_NFSSVC, M_WAITOK); 864 bzero((caddr_t)nfs_cltpsock, sizeof (struct nfssvc_sock)); 865 STAILQ_INIT(&nfs_cltpsock->ns_rec); 866 TAILQ_INIT(&nfs_cltpsock->ns_uidlruhead); 867 TAILQ_INSERT_TAIL(&nfssvc_sockhead, nfs_cltpsock, ns_chain); 868 #endif 869 } 870 871 /* 872 * Add entries to the server monitor log. 873 */ 874 static void 875 nfsd_rt(sotype, nd, cacherep) 876 int sotype; 877 register struct nfsrv_descript *nd; 878 int cacherep; 879 { 880 register struct drt *rt; 881 882 rt = &nfsdrt.drt[nfsdrt.pos]; 883 if (cacherep == RC_DOIT) 884 rt->flag = 0; 885 else if (cacherep == RC_REPLY) 886 rt->flag = DRT_CACHEREPLY; 887 else 888 rt->flag = DRT_CACHEDROP; 889 if (sotype == SOCK_STREAM) 890 rt->flag |= DRT_TCP; 891 if (nd->nd_flag & ND_NQNFS) 892 rt->flag |= DRT_NQNFS; 893 else if (nd->nd_flag & ND_NFSV3) 894 rt->flag |= DRT_NFSV3; 895 rt->proc = nd->nd_procnum; 896 if (nd->nd_nam->sa_family == AF_INET) 897 rt->ipadr = ((struct sockaddr_in *)nd->nd_nam)->sin_addr.s_addr; 898 else 899 rt->ipadr = INADDR_ANY; 900 rt->resptime = nfs_curusec() - (nd->nd_starttime.tv_sec * 1000000 + nd->nd_starttime.tv_usec); 901 getmicrotime(&rt->tstamp); 902 nfsdrt.pos = (nfsdrt.pos + 1) % NFSRTTLOGSIZ; 903 } 904 #endif /* NFS_NOSERVER */ 905 906 static int nfs_defect = 0; 907 SYSCTL_INT(_vfs_nfs, OID_AUTO, defect, CTLFLAG_RW, &nfs_defect, 0, ""); 908 909 /* 910 * Asynchronous I/O daemons for client nfs. 911 * They do read-ahead and write-behind operations on the block I/O cache. 912 * Never returns unless it fails or gets killed. 913 */ 914 static int 915 nfssvc_iod(p) 916 struct proc *p; 917 { 918 register struct buf *bp; 919 register int i, myiod; 920 struct nfsmount *nmp; 921 int error = 0; 922 923 /* 924 * Assign my position or return error if too many already running 925 */ 926 myiod = -1; 927 for (i = 0; i < NFS_MAXASYNCDAEMON; i++) 928 if (nfs_asyncdaemon[i] == 0) { 929 nfs_asyncdaemon[i]++; 930 myiod = i; 931 break; 932 } 933 if (myiod == -1) 934 return (EBUSY); 935 nfs_numasync++; 936 /* 937 * Just loop around doin our stuff until SIGKILL 938 */ 939 for (;;) { 940 while (((nmp = nfs_iodmount[myiod]) == NULL 941 || nmp->nm_bufq.tqh_first == NULL) 942 && error == 0) { 943 if (nmp) 944 nmp->nm_bufqiods--; 945 nfs_iodwant[myiod] = p; 946 nfs_iodmount[myiod] = NULL; 947 error = tsleep((caddr_t)&nfs_iodwant[myiod], 948 PWAIT | PCATCH, "nfsidl", 0); 949 } 950 if (error) { 951 nfs_asyncdaemon[myiod] = 0; 952 if (nmp) 953 nmp->nm_bufqiods--; 954 nfs_iodwant[myiod] = NULL; 955 nfs_iodmount[myiod] = NULL; 956 nfs_numasync--; 957 return (error); 958 } 959 while ((bp = nmp->nm_bufq.tqh_first) != NULL) { 960 /* Take one off the front of the list */ 961 TAILQ_REMOVE(&nmp->nm_bufq, bp, b_freelist); 962 nmp->nm_bufqlen--; 963 if (nmp->nm_bufqwant && nmp->nm_bufqlen <= nfs_numasync) { 964 nmp->nm_bufqwant = FALSE; 965 wakeup(&nmp->nm_bufq); 966 } 967 if (bp->b_flags & B_READ) 968 (void) nfs_doio(bp, bp->b_rcred, (struct proc *)0); 969 else 970 (void) nfs_doio(bp, bp->b_wcred, (struct proc *)0); 971 /* 972 * If there are more than one iod on this mount, then defect 973 * so that the iods can be shared out fairly between the mounts 974 */ 975 if (nfs_defect && nmp->nm_bufqiods > 1) { 976 NFS_DPF(ASYNCIO, 977 ("nfssvc_iod: iod %d defecting from mount %p\n", 978 myiod, nmp)); 979 nfs_iodmount[myiod] = NULL; 980 nmp->nm_bufqiods--; 981 break; 982 } 983 } 984 } 985 } 986 987 988 /* 989 * Get an authorization string for the uid by having the mount_nfs sitting 990 * on this mount point porpous out of the kernel and do it. 991 */ 992 int 993 nfs_getauth(nmp, rep, cred, auth_str, auth_len, verf_str, verf_len, key) 994 register struct nfsmount *nmp; 995 struct nfsreq *rep; 996 struct ucred *cred; 997 char **auth_str; 998 int *auth_len; 999 char *verf_str; 1000 int *verf_len; 1001 NFSKERBKEY_T key; /* return session key */ 1002 { 1003 int error = 0; 1004 1005 while ((nmp->nm_state & NFSSTA_WAITAUTH) == 0) { 1006 nmp->nm_state |= NFSSTA_WANTAUTH; 1007 (void) tsleep((caddr_t)&nmp->nm_authtype, PSOCK, 1008 "nfsauth1", 2 * hz); 1009 error = nfs_sigintr(nmp, rep, rep->r_procp); 1010 if (error) { 1011 nmp->nm_state &= ~NFSSTA_WANTAUTH; 1012 return (error); 1013 } 1014 } 1015 nmp->nm_state &= ~(NFSSTA_WAITAUTH | NFSSTA_WANTAUTH); 1016 nmp->nm_authstr = *auth_str = (char *)malloc(RPCAUTH_MAXSIZ, M_TEMP, M_WAITOK); 1017 nmp->nm_authlen = RPCAUTH_MAXSIZ; 1018 nmp->nm_verfstr = verf_str; 1019 nmp->nm_verflen = *verf_len; 1020 nmp->nm_authuid = cred->cr_uid; 1021 wakeup((caddr_t)&nmp->nm_authstr); 1022 1023 /* 1024 * And wait for mount_nfs to do its stuff. 1025 */ 1026 while ((nmp->nm_state & NFSSTA_HASAUTH) == 0 && error == 0) { 1027 (void) tsleep((caddr_t)&nmp->nm_authlen, PSOCK, 1028 "nfsauth2", 2 * hz); 1029 error = nfs_sigintr(nmp, rep, rep->r_procp); 1030 } 1031 if (nmp->nm_state & NFSSTA_AUTHERR) { 1032 nmp->nm_state &= ~NFSSTA_AUTHERR; 1033 error = EAUTH; 1034 } 1035 if (error) 1036 free((caddr_t)*auth_str, M_TEMP); 1037 else { 1038 *auth_len = nmp->nm_authlen; 1039 *verf_len = nmp->nm_verflen; 1040 bcopy((caddr_t)nmp->nm_key, (caddr_t)key, sizeof (key)); 1041 } 1042 nmp->nm_state &= ~NFSSTA_HASAUTH; 1043 nmp->nm_state |= NFSSTA_WAITAUTH; 1044 if (nmp->nm_state & NFSSTA_WANTAUTH) { 1045 nmp->nm_state &= ~NFSSTA_WANTAUTH; 1046 wakeup((caddr_t)&nmp->nm_authtype); 1047 } 1048 return (error); 1049 } 1050 1051 /* 1052 * Get a nickname authenticator and verifier. 1053 */ 1054 int 1055 nfs_getnickauth(nmp, cred, auth_str, auth_len, verf_str, verf_len) 1056 struct nfsmount *nmp; 1057 struct ucred *cred; 1058 char **auth_str; 1059 int *auth_len; 1060 char *verf_str; 1061 int verf_len; 1062 { 1063 register struct nfsuid *nuidp; 1064 register u_int32_t *nickp, *verfp; 1065 struct timeval ktvin, ktvout; 1066 1067 #ifdef DIAGNOSTIC 1068 if (verf_len < (4 * NFSX_UNSIGNED)) 1069 panic("nfs_getnickauth verf too small"); 1070 #endif 1071 for (nuidp = NMUIDHASH(nmp, cred->cr_uid)->lh_first; 1072 nuidp != 0; nuidp = nuidp->nu_hash.le_next) { 1073 if (nuidp->nu_cr.cr_uid == cred->cr_uid) 1074 break; 1075 } 1076 if (!nuidp || nuidp->nu_expire < time_second) 1077 return (EACCES); 1078 1079 /* 1080 * Move to the end of the lru list (end of lru == most recently used). 1081 */ 1082 TAILQ_REMOVE(&nmp->nm_uidlruhead, nuidp, nu_lru); 1083 TAILQ_INSERT_TAIL(&nmp->nm_uidlruhead, nuidp, nu_lru); 1084 1085 nickp = (u_int32_t *)malloc(2 * NFSX_UNSIGNED, M_TEMP, M_WAITOK); 1086 *nickp++ = txdr_unsigned(RPCAKN_NICKNAME); 1087 *nickp = txdr_unsigned(nuidp->nu_nickname); 1088 *auth_str = (char *)nickp; 1089 *auth_len = 2 * NFSX_UNSIGNED; 1090 1091 /* 1092 * Now we must encrypt the verifier and package it up. 1093 */ 1094 verfp = (u_int32_t *)verf_str; 1095 *verfp++ = txdr_unsigned(RPCAKN_NICKNAME); 1096 if (time_second > nuidp->nu_timestamp.tv_sec || 1097 (time_second == nuidp->nu_timestamp.tv_sec && 1098 time_second > nuidp->nu_timestamp.tv_usec)) 1099 getmicrotime(&nuidp->nu_timestamp); 1100 else 1101 nuidp->nu_timestamp.tv_usec++; 1102 ktvin.tv_sec = txdr_unsigned(nuidp->nu_timestamp.tv_sec); 1103 ktvin.tv_usec = txdr_unsigned(nuidp->nu_timestamp.tv_usec); 1104 1105 /* 1106 * Now encrypt the timestamp verifier in ecb mode using the session 1107 * key. 1108 */ 1109 #ifdef NFSKERB 1110 XXX 1111 #endif 1112 1113 *verfp++ = ktvout.tv_sec; 1114 *verfp++ = ktvout.tv_usec; 1115 *verfp = 0; 1116 return (0); 1117 } 1118 1119 /* 1120 * Save the current nickname in a hash list entry on the mount point. 1121 */ 1122 int 1123 nfs_savenickauth(nmp, cred, len, key, mdp, dposp, mrep) 1124 register struct nfsmount *nmp; 1125 struct ucred *cred; 1126 int len; 1127 NFSKERBKEY_T key; 1128 struct mbuf **mdp; 1129 char **dposp; 1130 struct mbuf *mrep; 1131 { 1132 register struct nfsuid *nuidp; 1133 register u_int32_t *tl; 1134 register int32_t t1; 1135 struct mbuf *md = *mdp; 1136 struct timeval ktvin, ktvout; 1137 u_int32_t nick; 1138 char *dpos = *dposp, *cp2; 1139 int deltasec, error = 0; 1140 1141 if (len == (3 * NFSX_UNSIGNED)) { 1142 nfsm_dissect(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 1143 ktvin.tv_sec = *tl++; 1144 ktvin.tv_usec = *tl++; 1145 nick = fxdr_unsigned(u_int32_t, *tl); 1146 1147 /* 1148 * Decrypt the timestamp in ecb mode. 1149 */ 1150 #ifdef NFSKERB 1151 XXX 1152 #endif 1153 ktvout.tv_sec = fxdr_unsigned(long, ktvout.tv_sec); 1154 ktvout.tv_usec = fxdr_unsigned(long, ktvout.tv_usec); 1155 deltasec = time_second - ktvout.tv_sec; 1156 if (deltasec < 0) 1157 deltasec = -deltasec; 1158 /* 1159 * If ok, add it to the hash list for the mount point. 1160 */ 1161 if (deltasec <= NFS_KERBCLOCKSKEW) { 1162 if (nmp->nm_numuids < nuidhash_max) { 1163 nmp->nm_numuids++; 1164 nuidp = (struct nfsuid *) 1165 malloc(sizeof (struct nfsuid), M_NFSUID, 1166 M_WAITOK); 1167 } else { 1168 nuidp = nmp->nm_uidlruhead.tqh_first; 1169 LIST_REMOVE(nuidp, nu_hash); 1170 TAILQ_REMOVE(&nmp->nm_uidlruhead, nuidp, 1171 nu_lru); 1172 } 1173 nuidp->nu_flag = 0; 1174 nuidp->nu_cr.cr_uid = cred->cr_uid; 1175 nuidp->nu_expire = time_second + NFS_KERBTTL; 1176 nuidp->nu_timestamp = ktvout; 1177 nuidp->nu_nickname = nick; 1178 bcopy(key, nuidp->nu_key, sizeof (key)); 1179 TAILQ_INSERT_TAIL(&nmp->nm_uidlruhead, nuidp, 1180 nu_lru); 1181 LIST_INSERT_HEAD(NMUIDHASH(nmp, cred->cr_uid), 1182 nuidp, nu_hash); 1183 } 1184 } else 1185 nfsm_adv(nfsm_rndup(len)); 1186 nfsmout: 1187 *mdp = md; 1188 *dposp = dpos; 1189 return (error); 1190 }
Cache object: 18a06bdc2aaff93a4d7b1637da6c3998
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]