1 /* $NetBSD: nfs_syscalls.c,v 1.48 2000/11/27 08:39:50 chs Exp $ */ 2 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. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)nfs_syscalls.c 8.5 (Berkeley) 3/30/95 39 */ 40 41 #include "fs_nfs.h" 42 #include "opt_nfs.h" 43 #include "opt_nfsserver.h" 44 #include "opt_iso.h" 45 #include "opt_inet.h" 46 #include "opt_compat_netbsd.h" 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/kernel.h> 51 #include <sys/file.h> 52 #include <sys/stat.h> 53 #include <sys/vnode.h> 54 #include <sys/mount.h> 55 #include <sys/proc.h> 56 #include <sys/uio.h> 57 #include <sys/malloc.h> 58 #include <sys/buf.h> 59 #include <sys/mbuf.h> 60 #include <sys/socket.h> 61 #include <sys/socketvar.h> 62 #include <sys/signalvar.h> 63 #include <sys/domain.h> 64 #include <sys/protosw.h> 65 #include <sys/namei.h> 66 #include <sys/syslog.h> 67 #include <sys/filedesc.h> 68 #include <sys/kthread.h> 69 70 #include <sys/syscallargs.h> 71 72 #include <netinet/in.h> 73 #include <netinet/tcp.h> 74 #ifdef ISO 75 #include <netiso/iso.h> 76 #endif 77 #include <nfs/xdr_subs.h> 78 #include <nfs/rpcv2.h> 79 #include <nfs/nfsproto.h> 80 #include <nfs/nfs.h> 81 #include <nfs/nfsm_subs.h> 82 #include <nfs/nfsrvcache.h> 83 #include <nfs/nfsmount.h> 84 #include <nfs/nfsnode.h> 85 #include <nfs/nqnfs.h> 86 #include <nfs/nfsrtt.h> 87 #include <nfs/nfs_var.h> 88 89 /* Global defs. */ 90 extern int32_t (*nfsrv3_procs[NFS_NPROCS]) __P((struct nfsrv_descript *, 91 struct nfssvc_sock *, 92 struct proc *, struct mbuf **)); 93 extern int nfs_numasync; 94 extern time_t nqnfsstarttime; 95 extern int nqsrv_writeslack; 96 extern int nfsrtton; 97 extern struct nfsstats nfsstats; 98 extern int nfsrvw_procrastinate; 99 struct nfssvc_sock *nfs_udpsock; 100 #ifdef ISO 101 struct nfssvc_sock *nfs_cltpsock; 102 #endif 103 #ifdef INET6 104 struct nfssvc_sock *nfs_udp6sock; 105 #endif 106 int nuidhash_max = NFS_MAXUIDHASH; 107 int nfsd_waiting = 0; 108 #ifdef NFSSERVER 109 static int nfs_numnfsd = 0; 110 static int notstarted = 1; 111 static int modify_flag = 0; 112 static struct nfsdrt nfsdrt; 113 #endif 114 115 #define TRUE 1 116 #define FALSE 0 117 118 #ifdef NFS 119 static struct proc *nfs_asyncdaemon[NFS_MAXASYNCDAEMON]; 120 int nfs_niothreads = -1; /* == "0, and has never been set" */ 121 #endif 122 123 #ifdef NFSSERVER 124 static void nfsd_rt __P((int, struct nfsrv_descript *, int)); 125 #endif 126 127 /* 128 * NFS server system calls 129 */ 130 131 132 /* 133 * Nfs server pseudo system call for the nfsd's 134 * Based on the flag value it either: 135 * - adds a socket to the selection list 136 * - remains in the kernel as an nfsd 137 * - remains in the kernel as an nfsiod 138 */ 139 int 140 sys_nfssvc(p, v, retval) 141 struct proc *p; 142 void *v; 143 register_t *retval; 144 { 145 struct sys_nfssvc_args /* { 146 syscallarg(int) flag; 147 syscallarg(caddr_t) argp; 148 } */ *uap = v; 149 int error; 150 #ifdef NFS 151 struct nameidata nd; 152 struct nfsmount *nmp; 153 struct nfsd_cargs ncd; 154 #endif 155 #ifdef NFSSERVER 156 struct file *fp; 157 struct mbuf *nam; 158 struct nfsd_args nfsdarg; 159 struct nfsd_srvargs nfsd_srvargs, *nsd = &nfsd_srvargs; 160 struct nfsd *nfsd; 161 struct nfssvc_sock *slp; 162 struct nfsuid *nuidp; 163 #endif 164 165 /* 166 * Must be super user 167 */ 168 error = suser(p->p_ucred, &p->p_acflag); 169 if(error) 170 return (error); 171 while (nfssvc_sockhead_flag & SLP_INIT) { 172 nfssvc_sockhead_flag |= SLP_WANTINIT; 173 (void) tsleep((caddr_t)&nfssvc_sockhead, PSOCK, "nfsd init", 0); 174 } 175 if (SCARG(uap, flag) & NFSSVC_BIOD) { 176 #if defined(NFS) && defined(COMPAT_14) 177 error = nfssvc_iod(p); 178 #else 179 error = ENOSYS; 180 #endif 181 } else if (SCARG(uap, flag) & NFSSVC_MNTD) { 182 #ifndef NFS 183 error = ENOSYS; 184 #else 185 error = copyin(SCARG(uap, argp), (caddr_t)&ncd, sizeof (ncd)); 186 if (error) 187 return (error); 188 NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, 189 ncd.ncd_dirp, p); 190 error = namei(&nd); 191 if (error) 192 return (error); 193 if ((nd.ni_vp->v_flag & VROOT) == 0) 194 error = EINVAL; 195 nmp = VFSTONFS(nd.ni_vp->v_mount); 196 vput(nd.ni_vp); 197 if (error) 198 return (error); 199 if ((nmp->nm_iflag & NFSMNT_MNTD) && 200 (SCARG(uap, flag) & NFSSVC_GOTAUTH) == 0) 201 return (0); 202 nmp->nm_iflag |= NFSMNT_MNTD; 203 error = nqnfs_clientd(nmp, p->p_ucred, &ncd, SCARG(uap, flag), 204 SCARG(uap, argp), p); 205 #endif /* NFS */ 206 } else if (SCARG(uap, flag) & NFSSVC_ADDSOCK) { 207 #ifndef NFSSERVER 208 error = ENOSYS; 209 #else 210 error = copyin(SCARG(uap, argp), (caddr_t)&nfsdarg, 211 sizeof(nfsdarg)); 212 if (error) 213 return (error); 214 /* getsock() will use the descriptor for us */ 215 error = getsock(p->p_fd, nfsdarg.sock, &fp); 216 if (error) 217 return (error); 218 /* 219 * Get the client address for connected sockets. 220 */ 221 if (nfsdarg.name == NULL || nfsdarg.namelen == 0) 222 nam = (struct mbuf *)0; 223 else { 224 error = sockargs(&nam, nfsdarg.name, nfsdarg.namelen, 225 MT_SONAME); 226 if (error) { 227 FILE_UNUSE(fp, NULL); 228 return (error); 229 } 230 } 231 error = nfssvc_addsock(fp, nam); 232 FILE_UNUSE(fp, NULL); 233 #endif /* !NFSSERVER */ 234 } else { 235 #ifndef NFSSERVER 236 error = ENOSYS; 237 #else 238 error = copyin(SCARG(uap, argp), (caddr_t)nsd, sizeof (*nsd)); 239 if (error) 240 return (error); 241 if ((SCARG(uap, flag) & NFSSVC_AUTHIN) && 242 ((nfsd = nsd->nsd_nfsd)) != NULL && 243 (nfsd->nfsd_slp->ns_flag & SLP_VALID)) { 244 slp = nfsd->nfsd_slp; 245 246 /* 247 * First check to see if another nfsd has already 248 * added this credential. 249 */ 250 for (nuidp = NUIDHASH(slp,nsd->nsd_cr.cr_uid)->lh_first; 251 nuidp != 0; nuidp = nuidp->nu_hash.le_next) { 252 if (nuidp->nu_cr.cr_uid == nsd->nsd_cr.cr_uid && 253 (!nfsd->nfsd_nd->nd_nam2 || 254 netaddr_match(NU_NETFAM(nuidp), 255 &nuidp->nu_haddr, nfsd->nfsd_nd->nd_nam2))) 256 break; 257 } 258 if (nuidp) { 259 nfsrv_setcred(&nuidp->nu_cr,&nfsd->nfsd_nd->nd_cr); 260 nfsd->nfsd_nd->nd_flag |= ND_KERBFULL; 261 } else { 262 /* 263 * Nope, so we will. 264 */ 265 if (slp->ns_numuids < nuidhash_max) { 266 slp->ns_numuids++; 267 nuidp = (struct nfsuid *) 268 malloc(sizeof (struct nfsuid), M_NFSUID, 269 M_WAITOK); 270 } else 271 nuidp = (struct nfsuid *)0; 272 if ((slp->ns_flag & SLP_VALID) == 0) { 273 if (nuidp) 274 free((caddr_t)nuidp, M_NFSUID); 275 } else { 276 if (nuidp == (struct nfsuid *)0) { 277 nuidp = slp->ns_uidlruhead.tqh_first; 278 LIST_REMOVE(nuidp, nu_hash); 279 TAILQ_REMOVE(&slp->ns_uidlruhead, nuidp, 280 nu_lru); 281 if (nuidp->nu_flag & NU_NAM) 282 m_freem(nuidp->nu_nam); 283 } 284 nuidp->nu_flag = 0; 285 nuidp->nu_cr = nsd->nsd_cr; 286 if (nuidp->nu_cr.cr_ngroups > NGROUPS) 287 nuidp->nu_cr.cr_ngroups = NGROUPS; 288 nuidp->nu_cr.cr_ref = 1; 289 nuidp->nu_timestamp = nsd->nsd_timestamp; 290 nuidp->nu_expire = time.tv_sec + nsd->nsd_ttl; 291 /* 292 * and save the session key in nu_key. 293 */ 294 memcpy(nuidp->nu_key, nsd->nsd_key, 295 sizeof(nsd->nsd_key)); 296 if (nfsd->nfsd_nd->nd_nam2) { 297 struct sockaddr_in *saddr; 298 299 saddr = mtod(nfsd->nfsd_nd->nd_nam2, 300 struct sockaddr_in *); 301 switch (saddr->sin_family) { 302 case AF_INET: 303 nuidp->nu_flag |= NU_INETADDR; 304 nuidp->nu_inetaddr = 305 saddr->sin_addr.s_addr; 306 break; 307 case AF_ISO: 308 default: 309 nuidp->nu_flag |= NU_NAM; 310 nuidp->nu_nam = m_copym( 311 nfsd->nfsd_nd->nd_nam2, 0, 312 M_COPYALL, M_WAIT); 313 break; 314 }; 315 } 316 TAILQ_INSERT_TAIL(&slp->ns_uidlruhead, nuidp, 317 nu_lru); 318 LIST_INSERT_HEAD(NUIDHASH(slp, nsd->nsd_uid), 319 nuidp, nu_hash); 320 nfsrv_setcred(&nuidp->nu_cr, 321 &nfsd->nfsd_nd->nd_cr); 322 nfsd->nfsd_nd->nd_flag |= ND_KERBFULL; 323 } 324 } 325 } 326 if ((SCARG(uap, flag) & NFSSVC_AUTHINFAIL) && 327 (nfsd = nsd->nsd_nfsd)) 328 nfsd->nfsd_flag |= NFSD_AUTHFAIL; 329 error = nfssvc_nfsd(nsd, SCARG(uap, argp), p); 330 #endif /* !NFSSERVER */ 331 } 332 if (error == EINTR || error == ERESTART) 333 error = 0; 334 return (error); 335 } 336 337 #ifdef NFSSERVER 338 /* 339 * Adds a socket to the list for servicing by nfsds. 340 */ 341 int 342 nfssvc_addsock(fp, mynam) 343 struct file *fp; 344 struct mbuf *mynam; 345 { 346 struct mbuf *m; 347 int siz; 348 struct nfssvc_sock *slp; 349 struct socket *so; 350 struct nfssvc_sock *tslp; 351 int error, s; 352 353 so = (struct socket *)fp->f_data; 354 tslp = (struct nfssvc_sock *)0; 355 /* 356 * Add it to the list, as required. 357 */ 358 if (so->so_proto->pr_protocol == IPPROTO_UDP) { 359 #ifdef INET6 360 if (so->so_proto->pr_domain->dom_family == AF_INET6) 361 tslp = nfs_udp6sock; 362 else 363 #endif 364 tslp = nfs_udpsock; 365 if (tslp->ns_flag & SLP_VALID) { 366 m_freem(mynam); 367 return (EPERM); 368 } 369 #ifdef ISO 370 } else if (so->so_proto->pr_protocol == ISOPROTO_CLTP) { 371 tslp = nfs_cltpsock; 372 if (tslp->ns_flag & SLP_VALID) { 373 m_freem(mynam); 374 return (EPERM); 375 } 376 #endif /* ISO */ 377 } 378 if (so->so_type == SOCK_STREAM) 379 siz = NFS_MAXPACKET + sizeof (u_long); 380 else 381 siz = NFS_MAXPACKET; 382 error = soreserve(so, siz, siz); 383 if (error) { 384 m_freem(mynam); 385 return (error); 386 } 387 388 /* 389 * Set protocol specific options { for now TCP only } and 390 * reserve some space. For datagram sockets, this can get called 391 * repeatedly for the same socket, but that isn't harmful. 392 */ 393 if (so->so_type == SOCK_STREAM) { 394 MGET(m, M_WAIT, MT_SOOPTS); 395 *mtod(m, int32_t *) = 1; 396 m->m_len = sizeof(int32_t); 397 sosetopt(so, SOL_SOCKET, SO_KEEPALIVE, m); 398 } 399 if ((so->so_proto->pr_domain->dom_family == AF_INET 400 #ifdef INET6 401 || so->so_proto->pr_domain->dom_family == AF_INET6 402 #endif 403 ) && 404 so->so_proto->pr_protocol == IPPROTO_TCP) { 405 MGET(m, M_WAIT, MT_SOOPTS); 406 *mtod(m, int32_t *) = 1; 407 m->m_len = sizeof(int32_t); 408 sosetopt(so, IPPROTO_TCP, TCP_NODELAY, m); 409 } 410 so->so_rcv.sb_flags &= ~SB_NOINTR; 411 so->so_rcv.sb_timeo = 0; 412 so->so_snd.sb_flags &= ~SB_NOINTR; 413 so->so_snd.sb_timeo = 0; 414 if (tslp) 415 slp = tslp; 416 else { 417 slp = (struct nfssvc_sock *) 418 malloc(sizeof (struct nfssvc_sock), M_NFSSVC, M_WAITOK); 419 memset((caddr_t)slp, 0, sizeof (struct nfssvc_sock)); 420 TAILQ_INIT(&slp->ns_uidlruhead); 421 TAILQ_INSERT_TAIL(&nfssvc_sockhead, slp, ns_chain); 422 } 423 slp->ns_so = so; 424 slp->ns_nam = mynam; 425 fp->f_count++; 426 slp->ns_fp = fp; 427 s = splsoftnet(); 428 so->so_upcallarg = (caddr_t)slp; 429 so->so_upcall = nfsrv_rcv; 430 so->so_rcv.sb_flags |= SB_UPCALL; 431 slp->ns_flag = (SLP_VALID | SLP_NEEDQ); 432 nfsrv_wakenfsd(slp); 433 splx(s); 434 return (0); 435 } 436 437 /* 438 * Called by nfssvc() for nfsds. Just loops around servicing rpc requests 439 * until it is killed by a signal. 440 */ 441 int 442 nfssvc_nfsd(nsd, argp, p) 443 struct nfsd_srvargs *nsd; 444 caddr_t argp; 445 struct proc *p; 446 { 447 struct mbuf *m; 448 int siz; 449 struct nfssvc_sock *slp; 450 struct socket *so; 451 int *solockp; 452 struct nfsd *nfsd = nsd->nsd_nfsd; 453 struct nfsrv_descript *nd = NULL; 454 struct mbuf *mreq; 455 int error = 0, cacherep, s, sotype, writes_todo; 456 u_quad_t cur_usec; 457 458 #ifndef nolint 459 cacherep = RC_DOIT; 460 writes_todo = 0; 461 #endif 462 s = splsoftnet(); 463 if (nfsd == (struct nfsd *)0) { 464 nsd->nsd_nfsd = nfsd = (struct nfsd *) 465 malloc(sizeof (struct nfsd), M_NFSD, M_WAITOK); 466 memset((caddr_t)nfsd, 0, sizeof (struct nfsd)); 467 nfsd->nfsd_procp = p; 468 TAILQ_INSERT_TAIL(&nfsd_head, nfsd, nfsd_chain); 469 nfs_numnfsd++; 470 } 471 p->p_holdcnt++; 472 /* 473 * Loop getting rpc requests until SIGKILL. 474 */ 475 for (;;) { 476 if ((nfsd->nfsd_flag & NFSD_REQINPROG) == 0) { 477 while (nfsd->nfsd_slp == (struct nfssvc_sock *)0 && 478 (nfsd_head_flag & NFSD_CHECKSLP) == 0) { 479 nfsd->nfsd_flag |= NFSD_WAITING; 480 nfsd_waiting++; 481 error = tsleep((caddr_t)nfsd, PSOCK | PCATCH, 482 "nfsd", 0); 483 nfsd_waiting--; 484 if (error) 485 goto done; 486 } 487 if (nfsd->nfsd_slp == (struct nfssvc_sock *)0 && 488 (nfsd_head_flag & NFSD_CHECKSLP) != 0) { 489 for (slp = nfssvc_sockhead.tqh_first; slp != 0; 490 slp = slp->ns_chain.tqe_next) { 491 if ((slp->ns_flag & (SLP_VALID | SLP_DOREC)) 492 == (SLP_VALID | SLP_DOREC)) { 493 slp->ns_flag &= ~SLP_DOREC; 494 slp->ns_sref++; 495 nfsd->nfsd_slp = slp; 496 break; 497 } 498 } 499 if (slp == 0) 500 nfsd_head_flag &= ~NFSD_CHECKSLP; 501 } 502 if ((slp = nfsd->nfsd_slp) == (struct nfssvc_sock *)0) 503 continue; 504 if (slp->ns_flag & SLP_VALID) { 505 if (slp->ns_flag & SLP_DISCONN) 506 nfsrv_zapsock(slp); 507 else if (slp->ns_flag & SLP_NEEDQ) { 508 slp->ns_flag &= ~SLP_NEEDQ; 509 (void) nfs_sndlock(&slp->ns_solock, 510 (struct nfsreq *)0); 511 nfsrv_rcv(slp->ns_so, (caddr_t)slp, 512 M_WAIT); 513 nfs_sndunlock(&slp->ns_solock); 514 } 515 error = nfsrv_dorec(slp, nfsd, &nd); 516 cur_usec = (u_quad_t)time.tv_sec * 1000000 + 517 (u_quad_t)time.tv_usec; 518 if (error && slp->ns_tq.lh_first && 519 slp->ns_tq.lh_first->nd_time <= cur_usec) { 520 error = 0; 521 cacherep = RC_DOIT; 522 writes_todo = 1; 523 } else 524 writes_todo = 0; 525 nfsd->nfsd_flag |= NFSD_REQINPROG; 526 } 527 } else { 528 error = 0; 529 slp = nfsd->nfsd_slp; 530 } 531 if (error || (slp->ns_flag & SLP_VALID) == 0) { 532 if (nd) { 533 free((caddr_t)nd, M_NFSRVDESC); 534 nd = NULL; 535 } 536 nfsd->nfsd_slp = (struct nfssvc_sock *)0; 537 nfsd->nfsd_flag &= ~NFSD_REQINPROG; 538 nfsrv_slpderef(slp); 539 continue; 540 } 541 splx(s); 542 so = slp->ns_so; 543 sotype = so->so_type; 544 if (so->so_proto->pr_flags & PR_CONNREQUIRED) 545 solockp = &slp->ns_solock; 546 else 547 solockp = (int *)0; 548 if (nd) { 549 nd->nd_starttime = time; 550 if (nd->nd_nam2) 551 nd->nd_nam = nd->nd_nam2; 552 else 553 nd->nd_nam = slp->ns_nam; 554 555 /* 556 * Check to see if authorization is needed. 557 */ 558 if (nfsd->nfsd_flag & NFSD_NEEDAUTH) { 559 nfsd->nfsd_flag &= ~NFSD_NEEDAUTH; 560 nsd->nsd_haddr = mtod(nd->nd_nam, 561 struct sockaddr_in *)->sin_addr.s_addr; 562 nsd->nsd_authlen = nfsd->nfsd_authlen; 563 nsd->nsd_verflen = nfsd->nfsd_verflen; 564 if (!copyout(nfsd->nfsd_authstr,nsd->nsd_authstr, 565 nfsd->nfsd_authlen) && 566 !copyout(nfsd->nfsd_verfstr, nsd->nsd_verfstr, 567 nfsd->nfsd_verflen) && 568 !copyout((caddr_t)nsd, argp, sizeof (*nsd))) { 569 p->p_holdcnt--; 570 return (ENEEDAUTH); 571 } 572 cacherep = RC_DROPIT; 573 } else 574 cacherep = nfsrv_getcache(nd, slp, &mreq); 575 576 /* 577 * Check for just starting up for NQNFS and send 578 * fake "try again later" replies to the NQNFS clients. 579 */ 580 if (notstarted && nqnfsstarttime <= time.tv_sec) { 581 if (modify_flag) { 582 nqnfsstarttime = time.tv_sec + nqsrv_writeslack; 583 modify_flag = 0; 584 } else 585 notstarted = 0; 586 } 587 if (notstarted) { 588 if ((nd->nd_flag & ND_NQNFS) == 0) 589 cacherep = RC_DROPIT; 590 else if (nd->nd_procnum != NFSPROC_WRITE) { 591 nd->nd_procnum = NFSPROC_NOOP; 592 nd->nd_repstat = NQNFS_TRYLATER; 593 cacherep = RC_DOIT; 594 } else 595 modify_flag = 1; 596 } else if (nfsd->nfsd_flag & NFSD_AUTHFAIL) { 597 nfsd->nfsd_flag &= ~NFSD_AUTHFAIL; 598 nd->nd_procnum = NFSPROC_NOOP; 599 nd->nd_repstat = (NFSERR_AUTHERR | AUTH_TOOWEAK); 600 cacherep = RC_DOIT; 601 } 602 } 603 604 /* 605 * Loop to get all the write rpc relies that have been 606 * gathered together. 607 */ 608 do { 609 #ifdef DIAGNOSTIC 610 int lockcount; 611 #endif 612 switch (cacherep) { 613 case RC_DOIT: 614 #ifdef DIAGNOSTIC 615 /* 616 * NFS server procs should neither release 617 * locks already held, nor leave things 618 * locked. Catch this sooner, rather than 619 * later (when we try to relock something we 620 * already have locked). Careful inspection 621 * of the failing routine usually turns up the 622 * lock leak.. once we know what it is.. 623 */ 624 lockcount = p->p_locks; 625 #endif 626 if (writes_todo || (!(nd->nd_flag & ND_NFSV3) && 627 nd->nd_procnum == NFSPROC_WRITE && 628 nfsrvw_procrastinate > 0 && !notstarted)) 629 error = nfsrv_writegather(&nd, slp, 630 nfsd->nfsd_procp, &mreq); 631 else 632 error = (*(nfsrv3_procs[nd->nd_procnum]))(nd, 633 slp, nfsd->nfsd_procp, &mreq); 634 #ifdef DIAGNOSTIC 635 if (p->p_locks != lockcount) { 636 /* 637 * If you see this panic, audit 638 * nfsrv3_procs[nd->nd_procnum] for vnode 639 * locking errors (usually, it's due to 640 * forgetting to vput() something). 641 */ 642 #ifdef DEBUG 643 extern void printlockedvnodes(void); 644 printlockedvnodes(); 645 #endif 646 printf("nfsd: locking botch in op %d" 647 " (before %d, after %d)\n", 648 nd ? nd->nd_procnum : -1, 649 lockcount, p->p_locks); 650 } 651 #endif 652 if (mreq == NULL) 653 break; 654 if (error) { 655 if (nd->nd_procnum != NQNFSPROC_VACATED) 656 nfsstats.srv_errs++; 657 nfsrv_updatecache(nd, FALSE, mreq); 658 if (nd->nd_nam2) 659 m_freem(nd->nd_nam2); 660 break; 661 } 662 nfsstats.srvrpccnt[nd->nd_procnum]++; 663 nfsrv_updatecache(nd, TRUE, mreq); 664 nd->nd_mrep = (struct mbuf *)0; 665 case RC_REPLY: 666 m = mreq; 667 siz = 0; 668 while (m) { 669 siz += m->m_len; 670 m = m->m_next; 671 } 672 if (siz <= 0 || siz > NFS_MAXPACKET) { 673 printf("mbuf siz=%d\n",siz); 674 panic("Bad nfs svc reply"); 675 } 676 m = mreq; 677 m->m_pkthdr.len = siz; 678 m->m_pkthdr.rcvif = (struct ifnet *)0; 679 /* 680 * For stream protocols, prepend a Sun RPC 681 * Record Mark. 682 */ 683 if (sotype == SOCK_STREAM) { 684 M_PREPEND(m, NFSX_UNSIGNED, M_WAIT); 685 *mtod(m, u_int32_t *) = htonl(0x80000000 | siz); 686 } 687 if (solockp) 688 (void) nfs_sndlock(solockp, (struct nfsreq *)0); 689 if (slp->ns_flag & SLP_VALID) 690 error = nfs_send(so, nd->nd_nam2, m, NULL); 691 else { 692 error = EPIPE; 693 m_freem(m); 694 } 695 if (nfsrtton) 696 nfsd_rt(sotype, nd, cacherep); 697 if (nd->nd_nam2) 698 MFREE(nd->nd_nam2, m); 699 if (nd->nd_mrep) 700 m_freem(nd->nd_mrep); 701 if (error == EPIPE) 702 nfsrv_zapsock(slp); 703 if (solockp) 704 nfs_sndunlock(solockp); 705 if (error == EINTR || error == ERESTART) { 706 free((caddr_t)nd, M_NFSRVDESC); 707 nfsrv_slpderef(slp); 708 s = splsoftnet(); 709 goto done; 710 } 711 break; 712 case RC_DROPIT: 713 if (nfsrtton) 714 nfsd_rt(sotype, nd, cacherep); 715 m_freem(nd->nd_mrep); 716 m_freem(nd->nd_nam2); 717 break; 718 }; 719 if (nd) { 720 FREE((caddr_t)nd, M_NFSRVDESC); 721 nd = NULL; 722 } 723 724 /* 725 * Check to see if there are outstanding writes that 726 * need to be serviced. 727 */ 728 cur_usec = (u_quad_t)time.tv_sec * 1000000 + 729 (u_quad_t)time.tv_usec; 730 s = splsoftclock(); 731 if (slp->ns_tq.lh_first && 732 slp->ns_tq.lh_first->nd_time <= cur_usec) { 733 cacherep = RC_DOIT; 734 writes_todo = 1; 735 } else 736 writes_todo = 0; 737 splx(s); 738 } while (writes_todo); 739 s = splsoftnet(); 740 if (nfsrv_dorec(slp, nfsd, &nd)) { 741 nfsd->nfsd_flag &= ~NFSD_REQINPROG; 742 nfsd->nfsd_slp = NULL; 743 nfsrv_slpderef(slp); 744 } 745 } 746 done: 747 p->p_holdcnt--; 748 TAILQ_REMOVE(&nfsd_head, nfsd, nfsd_chain); 749 splx(s); 750 free((caddr_t)nfsd, M_NFSD); 751 nsd->nsd_nfsd = (struct nfsd *)0; 752 if (--nfs_numnfsd == 0) 753 nfsrv_init(TRUE); /* Reinitialize everything */ 754 return (error); 755 } 756 757 /* 758 * Shut down a socket associated with an nfssvc_sock structure. 759 * Should be called with the send lock set, if required. 760 * The trick here is to increment the sref at the start, so that the nfsds 761 * will stop using it and clear ns_flag at the end so that it will not be 762 * reassigned during cleanup. 763 */ 764 void 765 nfsrv_zapsock(slp) 766 struct nfssvc_sock *slp; 767 { 768 struct nfsuid *nuidp, *nnuidp; 769 struct nfsrv_descript *nwp, *nnwp; 770 struct socket *so; 771 struct file *fp; 772 struct mbuf *m; 773 int s; 774 775 slp->ns_flag &= ~SLP_ALLFLAGS; 776 fp = slp->ns_fp; 777 if (fp) { 778 FILE_USE(fp); 779 slp->ns_fp = (struct file *)0; 780 so = slp->ns_so; 781 so->so_upcall = NULL; 782 so->so_upcallarg = NULL; 783 so->so_rcv.sb_flags &= ~SB_UPCALL; 784 soshutdown(so, 2); 785 closef(fp, (struct proc *)0); 786 if (slp->ns_nam) 787 MFREE(slp->ns_nam, m); 788 m_freem(slp->ns_raw); 789 m_freem(slp->ns_rec); 790 for (nuidp = slp->ns_uidlruhead.tqh_first; nuidp != 0; 791 nuidp = nnuidp) { 792 nnuidp = nuidp->nu_lru.tqe_next; 793 LIST_REMOVE(nuidp, nu_hash); 794 TAILQ_REMOVE(&slp->ns_uidlruhead, nuidp, nu_lru); 795 if (nuidp->nu_flag & NU_NAM) 796 m_freem(nuidp->nu_nam); 797 free((caddr_t)nuidp, M_NFSUID); 798 } 799 s = splsoftclock(); 800 for (nwp = slp->ns_tq.lh_first; nwp; nwp = nnwp) { 801 nnwp = nwp->nd_tq.le_next; 802 LIST_REMOVE(nwp, nd_tq); 803 free((caddr_t)nwp, M_NFSRVDESC); 804 } 805 LIST_INIT(&slp->ns_tq); 806 splx(s); 807 } 808 } 809 810 /* 811 * Derefence a server socket structure. If it has no more references and 812 * is no longer valid, you can throw it away. 813 */ 814 void 815 nfsrv_slpderef(slp) 816 struct nfssvc_sock *slp; 817 { 818 if (--(slp->ns_sref) == 0 && (slp->ns_flag & SLP_VALID) == 0) { 819 TAILQ_REMOVE(&nfssvc_sockhead, slp, ns_chain); 820 free((caddr_t)slp, M_NFSSVC); 821 } 822 } 823 824 /* 825 * Initialize the data structures for the server. 826 * Handshake with any new nfsds starting up to avoid any chance of 827 * corruption. 828 */ 829 void 830 nfsrv_init(terminating) 831 int terminating; 832 { 833 struct nfssvc_sock *slp, *nslp; 834 835 if (nfssvc_sockhead_flag & SLP_INIT) 836 panic("nfsd init"); 837 nfssvc_sockhead_flag |= SLP_INIT; 838 if (terminating) { 839 for (slp = nfssvc_sockhead.tqh_first; slp != 0; slp = nslp) { 840 nslp = slp->ns_chain.tqe_next; 841 if (slp->ns_flag & SLP_VALID) 842 nfsrv_zapsock(slp); 843 TAILQ_REMOVE(&nfssvc_sockhead, slp, ns_chain); 844 free((caddr_t)slp, M_NFSSVC); 845 } 846 nfsrv_cleancache(); /* And clear out server cache */ 847 } else 848 nfs_pub.np_valid = 0; 849 850 TAILQ_INIT(&nfssvc_sockhead); 851 nfssvc_sockhead_flag &= ~SLP_INIT; 852 if (nfssvc_sockhead_flag & SLP_WANTINIT) { 853 nfssvc_sockhead_flag &= ~SLP_WANTINIT; 854 wakeup((caddr_t)&nfssvc_sockhead); 855 } 856 857 TAILQ_INIT(&nfsd_head); 858 nfsd_head_flag &= ~NFSD_CHECKSLP; 859 860 nfs_udpsock = (struct nfssvc_sock *) 861 malloc(sizeof (struct nfssvc_sock), M_NFSSVC, M_WAITOK); 862 memset((caddr_t)nfs_udpsock, 0, sizeof (struct nfssvc_sock)); 863 TAILQ_INIT(&nfs_udpsock->ns_uidlruhead); 864 TAILQ_INSERT_HEAD(&nfssvc_sockhead, nfs_udpsock, ns_chain); 865 866 #ifdef INET6 867 nfs_udp6sock = (struct nfssvc_sock *) 868 malloc(sizeof (struct nfssvc_sock), M_NFSSVC, M_WAITOK); 869 memset((caddr_t)nfs_udp6sock, 0, sizeof (struct nfssvc_sock)); 870 TAILQ_INIT(&nfs_udp6sock->ns_uidlruhead); 871 TAILQ_INSERT_TAIL(&nfssvc_sockhead, nfs_udp6sock, ns_chain); 872 #endif 873 874 #ifdef ISO 875 nfs_cltpsock = (struct nfssvc_sock *) 876 malloc(sizeof (struct nfssvc_sock), M_NFSSVC, M_WAITOK); 877 memset((caddr_t)nfs_cltpsock, 0, sizeof (struct nfssvc_sock)); 878 TAILQ_INIT(&nfs_cltpsock->ns_uidlruhead); 879 TAILQ_INSERT_TAIL(&nfssvc_sockhead, nfs_cltpsock, ns_chain); 880 #endif 881 } 882 883 /* 884 * Add entries to the server monitor log. 885 */ 886 static void 887 nfsd_rt(sotype, nd, cacherep) 888 int sotype; 889 struct nfsrv_descript *nd; 890 int cacherep; 891 { 892 struct drt *rt; 893 894 rt = &nfsdrt.drt[nfsdrt.pos]; 895 if (cacherep == RC_DOIT) 896 rt->flag = 0; 897 else if (cacherep == RC_REPLY) 898 rt->flag = DRT_CACHEREPLY; 899 else 900 rt->flag = DRT_CACHEDROP; 901 if (sotype == SOCK_STREAM) 902 rt->flag |= DRT_TCP; 903 if (nd->nd_flag & ND_NQNFS) 904 rt->flag |= DRT_NQNFS; 905 else if (nd->nd_flag & ND_NFSV3) 906 rt->flag |= DRT_NFSV3; 907 rt->proc = nd->nd_procnum; 908 if (mtod(nd->nd_nam, struct sockaddr *)->sa_family == AF_INET) 909 rt->ipadr = mtod(nd->nd_nam, struct sockaddr_in *)->sin_addr.s_addr; 910 else 911 rt->ipadr = INADDR_ANY; 912 rt->resptime = ((time.tv_sec - nd->nd_starttime.tv_sec) * 1000000) + 913 (time.tv_usec - nd->nd_starttime.tv_usec); 914 rt->tstamp = time; 915 nfsdrt.pos = (nfsdrt.pos + 1) % NFSRTTLOGSIZ; 916 } 917 #endif /* NFSSERVER */ 918 919 #ifdef NFS 920 921 int nfs_defect = 0; 922 /* 923 * Asynchronous I/O threads for client nfs. 924 * They do read-ahead and write-behind operations on the block I/O cache. 925 * Never returns unless it fails or gets killed. 926 */ 927 928 int 929 nfssvc_iod(p) 930 struct proc *p; 931 { 932 struct buf *bp; 933 int i, myiod; 934 struct nfsmount *nmp; 935 int error = 0; 936 937 /* 938 * Assign my position or return error if too many already running 939 */ 940 myiod = -1; 941 for (i = 0; i < NFS_MAXASYNCDAEMON; i++) 942 if (nfs_asyncdaemon[i] == NULL) { 943 myiod = i; 944 break; 945 } 946 if (myiod == -1) 947 return (EBUSY); 948 nfs_asyncdaemon[myiod] = p; 949 nfs_numasync++; 950 p->p_holdcnt++; 951 /* 952 * Just loop around doing our stuff until SIGKILL 953 */ 954 for (;;) { 955 while (((nmp = nfs_iodmount[myiod]) == NULL 956 || nmp->nm_bufq.tqh_first == NULL) 957 && error == 0) { 958 if (nmp) 959 nmp->nm_bufqiods--; 960 nfs_iodwant[myiod] = p; 961 nfs_iodmount[myiod] = NULL; 962 error = tsleep((caddr_t)&nfs_iodwant[myiod], 963 PWAIT | PCATCH, "nfsidl", 0); 964 } 965 while (nmp != NULL && (bp = nmp->nm_bufq.tqh_first) != NULL) { 966 /* Take one off the front of the list */ 967 TAILQ_REMOVE(&nmp->nm_bufq, bp, b_freelist); 968 nmp->nm_bufqlen--; 969 if (nmp->nm_bufqwant && nmp->nm_bufqlen < 2 * nfs_numasync) { 970 nmp->nm_bufqwant = FALSE; 971 wakeup(&nmp->nm_bufq); 972 } 973 (void) nfs_doio(bp, NULL); 974 /* 975 * If there are more than one iod on this mount, then defect 976 * so that the iods can be shared out fairly between the mounts 977 */ 978 if (nfs_defect && nmp->nm_bufqiods > 1) { 979 nfs_iodmount[myiod] = NULL; 980 nmp->nm_bufqiods--; 981 break; 982 } 983 } 984 if (error) { 985 break; 986 } 987 } 988 p->p_holdcnt--; 989 if (nmp) 990 nmp->nm_bufqiods--; 991 nfs_iodwant[myiod] = NULL; 992 nfs_iodmount[myiod] = NULL; 993 nfs_asyncdaemon[myiod] = NULL; 994 nfs_numasync--; 995 996 return (error); 997 } 998 999 void 1000 start_nfsio(arg) 1001 void *arg; 1002 { 1003 nfssvc_iod(curproc); 1004 1005 kthread_exit(0); 1006 } 1007 1008 void 1009 nfs_getset_niothreads(set) 1010 int set; 1011 { 1012 int i, have, start; 1013 1014 for (have = 0, i = 0; i < NFS_MAXASYNCDAEMON; i++) 1015 if (nfs_asyncdaemon[i] != NULL) 1016 have++; 1017 1018 if (set) { 1019 /* clamp to sane range */ 1020 nfs_niothreads = max(0, min(nfs_niothreads, NFS_MAXASYNCDAEMON)); 1021 1022 start = nfs_niothreads - have; 1023 1024 while (start > 0) { 1025 kthread_create1(start_nfsio, NULL, NULL, "nfsio"); 1026 start--; 1027 } 1028 1029 for (i = 0; (start < 0) && (i < NFS_MAXASYNCDAEMON); i++) 1030 if (nfs_asyncdaemon[i] != NULL) { 1031 psignal(nfs_asyncdaemon[i], SIGKILL); 1032 start++; 1033 } 1034 } else { 1035 if (nfs_niothreads >= 0) 1036 nfs_niothreads = have; 1037 } 1038 } 1039 1040 /* 1041 * Get an authorization string for the uid by having the mount_nfs sitting 1042 * on this mount point porpous out of the kernel and do it. 1043 */ 1044 int 1045 nfs_getauth(nmp, rep, cred, auth_str, auth_len, verf_str, verf_len, key) 1046 struct nfsmount *nmp; 1047 struct nfsreq *rep; 1048 struct ucred *cred; 1049 char **auth_str; 1050 int *auth_len; 1051 char *verf_str; 1052 int *verf_len; 1053 NFSKERBKEY_T key; /* return session key */ 1054 { 1055 int error = 0; 1056 1057 while ((nmp->nm_iflag & NFSMNT_WAITAUTH) == 0) { 1058 nmp->nm_iflag |= NFSMNT_WANTAUTH; 1059 (void) tsleep((caddr_t)&nmp->nm_authtype, PSOCK, 1060 "nfsauth1", 2 * hz); 1061 error = nfs_sigintr(nmp, rep, rep->r_procp); 1062 if (error) { 1063 nmp->nm_iflag &= ~NFSMNT_WANTAUTH; 1064 return (error); 1065 } 1066 } 1067 nmp->nm_iflag &= ~(NFSMNT_WAITAUTH | NFSMNT_WANTAUTH); 1068 nmp->nm_authstr = *auth_str = (char *)malloc(RPCAUTH_MAXSIZ, M_TEMP, M_WAITOK); 1069 nmp->nm_authlen = RPCAUTH_MAXSIZ; 1070 nmp->nm_verfstr = verf_str; 1071 nmp->nm_verflen = *verf_len; 1072 nmp->nm_authuid = cred->cr_uid; 1073 wakeup((caddr_t)&nmp->nm_authstr); 1074 1075 /* 1076 * And wait for mount_nfs to do its stuff. 1077 */ 1078 while ((nmp->nm_iflag & NFSMNT_HASAUTH) == 0 && error == 0) { 1079 (void) tsleep((caddr_t)&nmp->nm_authlen, PSOCK, 1080 "nfsauth2", 2 * hz); 1081 error = nfs_sigintr(nmp, rep, rep->r_procp); 1082 } 1083 if (nmp->nm_iflag & NFSMNT_AUTHERR) { 1084 nmp->nm_iflag &= ~NFSMNT_AUTHERR; 1085 error = EAUTH; 1086 } 1087 if (error) 1088 free((caddr_t)*auth_str, M_TEMP); 1089 else { 1090 *auth_len = nmp->nm_authlen; 1091 *verf_len = nmp->nm_verflen; 1092 memcpy((caddr_t)key, (caddr_t)nmp->nm_key, sizeof (key)); 1093 } 1094 nmp->nm_iflag &= ~NFSMNT_HASAUTH; 1095 nmp->nm_iflag |= NFSMNT_WAITAUTH; 1096 if (nmp->nm_iflag & NFSMNT_WANTAUTH) { 1097 nmp->nm_iflag &= ~NFSMNT_WANTAUTH; 1098 wakeup((caddr_t)&nmp->nm_authtype); 1099 } 1100 return (error); 1101 } 1102 1103 /* 1104 * Get a nickname authenticator and verifier. 1105 */ 1106 int 1107 nfs_getnickauth(nmp, cred, auth_str, auth_len, verf_str, verf_len) 1108 struct nfsmount *nmp; 1109 struct ucred *cred; 1110 char **auth_str; 1111 int *auth_len; 1112 char *verf_str; 1113 int verf_len; 1114 { 1115 struct nfsuid *nuidp; 1116 u_int32_t *nickp, *verfp; 1117 struct timeval ktvin, ktvout; 1118 1119 #ifdef DIAGNOSTIC 1120 if (verf_len < (4 * NFSX_UNSIGNED)) 1121 panic("nfs_getnickauth verf too small"); 1122 #endif 1123 for (nuidp = NMUIDHASH(nmp, cred->cr_uid)->lh_first; 1124 nuidp != 0; nuidp = nuidp->nu_hash.le_next) { 1125 if (nuidp->nu_cr.cr_uid == cred->cr_uid) 1126 break; 1127 } 1128 if (!nuidp || nuidp->nu_expire < time.tv_sec) 1129 return (EACCES); 1130 1131 /* 1132 * Move to the end of the lru list (end of lru == most recently used). 1133 */ 1134 TAILQ_REMOVE(&nmp->nm_uidlruhead, nuidp, nu_lru); 1135 TAILQ_INSERT_TAIL(&nmp->nm_uidlruhead, nuidp, nu_lru); 1136 1137 nickp = (u_int32_t *)malloc(2 * NFSX_UNSIGNED, M_TEMP, M_WAITOK); 1138 *nickp++ = txdr_unsigned(RPCAKN_NICKNAME); 1139 *nickp = txdr_unsigned(nuidp->nu_nickname); 1140 *auth_str = (char *)nickp; 1141 *auth_len = 2 * NFSX_UNSIGNED; 1142 1143 /* 1144 * Now we must encrypt the verifier and package it up. 1145 */ 1146 verfp = (u_int32_t *)verf_str; 1147 *verfp++ = txdr_unsigned(RPCAKN_NICKNAME); 1148 if (time.tv_sec > nuidp->nu_timestamp.tv_sec || 1149 (time.tv_sec == nuidp->nu_timestamp.tv_sec && 1150 time.tv_usec > nuidp->nu_timestamp.tv_usec)) 1151 nuidp->nu_timestamp = time; 1152 else 1153 nuidp->nu_timestamp.tv_usec++; 1154 ktvin.tv_sec = txdr_unsigned(nuidp->nu_timestamp.tv_sec); 1155 ktvin.tv_usec = txdr_unsigned(nuidp->nu_timestamp.tv_usec); 1156 1157 /* 1158 * Now encrypt the timestamp verifier in ecb mode using the session 1159 * key. 1160 */ 1161 #ifdef NFSKERB 1162 XXX 1163 #endif 1164 1165 *verfp++ = ktvout.tv_sec; 1166 *verfp++ = ktvout.tv_usec; 1167 *verfp = 0; 1168 return (0); 1169 } 1170 1171 /* 1172 * Save the current nickname in a hash list entry on the mount point. 1173 */ 1174 int 1175 nfs_savenickauth(nmp, cred, len, key, mdp, dposp, mrep) 1176 struct nfsmount *nmp; 1177 struct ucred *cred; 1178 int len; 1179 NFSKERBKEY_T key; 1180 struct mbuf **mdp; 1181 char **dposp; 1182 struct mbuf *mrep; 1183 { 1184 struct nfsuid *nuidp; 1185 u_int32_t *tl; 1186 int32_t t1; 1187 struct mbuf *md = *mdp; 1188 struct timeval ktvin, ktvout; 1189 u_int32_t nick; 1190 char *dpos = *dposp, *cp2; 1191 int deltasec, error = 0; 1192 1193 if (len == (3 * NFSX_UNSIGNED)) { 1194 nfsm_dissect(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 1195 ktvin.tv_sec = *tl++; 1196 ktvin.tv_usec = *tl++; 1197 nick = fxdr_unsigned(u_int32_t, *tl); 1198 1199 /* 1200 * Decrypt the timestamp in ecb mode. 1201 */ 1202 #ifdef NFSKERB 1203 XXX 1204 #endif 1205 ktvout.tv_sec = fxdr_unsigned(long, ktvout.tv_sec); 1206 ktvout.tv_usec = fxdr_unsigned(long, ktvout.tv_usec); 1207 deltasec = time.tv_sec - ktvout.tv_sec; 1208 if (deltasec < 0) 1209 deltasec = -deltasec; 1210 /* 1211 * If ok, add it to the hash list for the mount point. 1212 */ 1213 if (deltasec <= NFS_KERBCLOCKSKEW) { 1214 if (nmp->nm_numuids < nuidhash_max) { 1215 nmp->nm_numuids++; 1216 nuidp = (struct nfsuid *) 1217 malloc(sizeof (struct nfsuid), M_NFSUID, 1218 M_WAITOK); 1219 } else { 1220 nuidp = nmp->nm_uidlruhead.tqh_first; 1221 LIST_REMOVE(nuidp, nu_hash); 1222 TAILQ_REMOVE(&nmp->nm_uidlruhead, nuidp, 1223 nu_lru); 1224 } 1225 nuidp->nu_flag = 0; 1226 nuidp->nu_cr.cr_uid = cred->cr_uid; 1227 nuidp->nu_expire = time.tv_sec + NFS_KERBTTL; 1228 nuidp->nu_timestamp = ktvout; 1229 nuidp->nu_nickname = nick; 1230 memcpy(nuidp->nu_key, key, sizeof (key)); 1231 TAILQ_INSERT_TAIL(&nmp->nm_uidlruhead, nuidp, 1232 nu_lru); 1233 LIST_INSERT_HEAD(NMUIDHASH(nmp, cred->cr_uid), 1234 nuidp, nu_hash); 1235 } 1236 } else 1237 nfsm_adv(nfsm_rndup(len)); 1238 nfsmout: 1239 *mdp = md; 1240 *dposp = dpos; 1241 return (error); 1242 } 1243 #endif /* NFS */ 1244