nfs_syscalls.c revision 1.48.2.1
1 /* $NetBSD: nfs_syscalls.c,v 1.48.2.1 2001/03/05 22:50:00 nathanw 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/lwp.h> 56 #include <sys/proc.h> 57 #include <sys/uio.h> 58 #include <sys/malloc.h> 59 #include <sys/buf.h> 60 #include <sys/mbuf.h> 61 #include <sys/socket.h> 62 #include <sys/socketvar.h> 63 #include <sys/signalvar.h> 64 #include <sys/domain.h> 65 #include <sys/protosw.h> 66 #include <sys/namei.h> 67 #include <sys/syslog.h> 68 #include <sys/filedesc.h> 69 #include <sys/kthread.h> 70 71 #include <sys/syscallargs.h> 72 73 #include <netinet/in.h> 74 #include <netinet/tcp.h> 75 #ifdef ISO 76 #include <netiso/iso.h> 77 #endif 78 #include <nfs/xdr_subs.h> 79 #include <nfs/rpcv2.h> 80 #include <nfs/nfsproto.h> 81 #include <nfs/nfs.h> 82 #include <nfs/nfsm_subs.h> 83 #include <nfs/nfsrvcache.h> 84 #include <nfs/nfsmount.h> 85 #include <nfs/nfsnode.h> 86 #include <nfs/nqnfs.h> 87 #include <nfs/nfsrtt.h> 88 #include <nfs/nfs_var.h> 89 90 /* Global defs. */ 91 extern int32_t (*nfsrv3_procs[NFS_NPROCS]) __P((struct nfsrv_descript *, 92 struct nfssvc_sock *, 93 struct proc *, struct mbuf **)); 94 extern int nfs_numasync; 95 extern time_t nqnfsstarttime; 96 extern int nqsrv_writeslack; 97 extern int nfsrtton; 98 extern struct nfsstats nfsstats; 99 extern int nfsrvw_procrastinate; 100 struct nfssvc_sock *nfs_udpsock; 101 #ifdef ISO 102 struct nfssvc_sock *nfs_cltpsock; 103 #endif 104 #ifdef INET6 105 struct nfssvc_sock *nfs_udp6sock; 106 #endif 107 int nuidhash_max = NFS_MAXUIDHASH; 108 int nfsd_waiting = 0; 109 #ifdef NFSSERVER 110 static int nfs_numnfsd = 0; 111 static int notstarted = 1; 112 static int modify_flag = 0; 113 static struct nfsdrt nfsdrt; 114 #endif 115 116 #define TRUE 1 117 #define FALSE 0 118 119 #ifdef NFS 120 static struct proc *nfs_asyncdaemon[NFS_MAXASYNCDAEMON]; 121 int nfs_niothreads = -1; /* == "0, and has never been set" */ 122 #endif 123 124 #ifdef NFSSERVER 125 static void nfsd_rt __P((int, struct nfsrv_descript *, int)); 126 #endif 127 128 /* 129 * NFS server system calls 130 */ 131 132 133 /* 134 * Nfs server pseudo system call for the nfsd's 135 * Based on the flag value it either: 136 * - adds a socket to the selection list 137 * - remains in the kernel as an nfsd 138 * - remains in the kernel as an nfsiod 139 */ 140 int 141 sys_nfssvc(l, v, retval) 142 struct lwp *l; 143 void *v; 144 register_t *retval; 145 { 146 struct sys_nfssvc_args /* { 147 syscallarg(int) flag; 148 syscallarg(caddr_t) argp; 149 } */ *uap = v; 150 struct proc *p = l->l_proc; 151 int error; 152 #ifdef NFS 153 struct nameidata nd; 154 struct nfsmount *nmp; 155 struct nfsd_cargs ncd; 156 #endif 157 #ifdef NFSSERVER 158 struct file *fp; 159 struct mbuf *nam; 160 struct nfsd_args nfsdarg; 161 struct nfsd_srvargs nfsd_srvargs, *nsd = &nfsd_srvargs; 162 struct nfsd *nfsd; 163 struct nfssvc_sock *slp; 164 struct nfsuid *nuidp; 165 #endif 166 167 /* 168 * Must be super user 169 */ 170 error = suser(p->p_ucred, &p->p_acflag); 171 if(error) 172 return (error); 173 while (nfssvc_sockhead_flag & SLP_INIT) { 174 nfssvc_sockhead_flag |= SLP_WANTINIT; 175 (void) tsleep((caddr_t)&nfssvc_sockhead, PSOCK, "nfsd init", 0); 176 } 177 if (SCARG(uap, flag) & NFSSVC_BIOD) { 178 #if defined(NFS) && defined(COMPAT_14) 179 error = nfssvc_iod(l); 180 #else 181 error = ENOSYS; 182 #endif 183 } else if (SCARG(uap, flag) & NFSSVC_MNTD) { 184 #ifndef NFS 185 error = ENOSYS; 186 #else 187 error = copyin(SCARG(uap, argp), (caddr_t)&ncd, sizeof (ncd)); 188 if (error) 189 return (error); 190 NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, 191 ncd.ncd_dirp, p); 192 error = namei(&nd); 193 if (error) 194 return (error); 195 if ((nd.ni_vp->v_flag & VROOT) == 0) 196 error = EINVAL; 197 nmp = VFSTONFS(nd.ni_vp->v_mount); 198 vput(nd.ni_vp); 199 if (error) 200 return (error); 201 if ((nmp->nm_iflag & NFSMNT_MNTD) && 202 (SCARG(uap, flag) & NFSSVC_GOTAUTH) == 0) 203 return (0); 204 nmp->nm_iflag |= NFSMNT_MNTD; 205 error = nqnfs_clientd(nmp, p->p_ucred, &ncd, SCARG(uap, flag), 206 SCARG(uap, argp), l); 207 #endif /* NFS */ 208 } else if (SCARG(uap, flag) & NFSSVC_ADDSOCK) { 209 #ifndef NFSSERVER 210 error = ENOSYS; 211 #else 212 error = copyin(SCARG(uap, argp), (caddr_t)&nfsdarg, 213 sizeof(nfsdarg)); 214 if (error) 215 return (error); 216 /* getsock() will use the descriptor for us */ 217 error = getsock(p->p_fd, nfsdarg.sock, &fp); 218 if (error) 219 return (error); 220 /* 221 * Get the client address for connected sockets. 222 */ 223 if (nfsdarg.name == NULL || nfsdarg.namelen == 0) 224 nam = (struct mbuf *)0; 225 else { 226 error = sockargs(&nam, nfsdarg.name, nfsdarg.namelen, 227 MT_SONAME); 228 if (error) { 229 FILE_UNUSE(fp, NULL); 230 return (error); 231 } 232 } 233 error = nfssvc_addsock(fp, nam); 234 FILE_UNUSE(fp, NULL); 235 #endif /* !NFSSERVER */ 236 } else { 237 #ifndef NFSSERVER 238 error = ENOSYS; 239 #else 240 error = copyin(SCARG(uap, argp), (caddr_t)nsd, sizeof (*nsd)); 241 if (error) 242 return (error); 243 if ((SCARG(uap, flag) & NFSSVC_AUTHIN) && 244 ((nfsd = nsd->nsd_nfsd)) != NULL && 245 (nfsd->nfsd_slp->ns_flag & SLP_VALID)) { 246 slp = nfsd->nfsd_slp; 247 248 /* 249 * First check to see if another nfsd has already 250 * added this credential. 251 */ 252 for (nuidp = NUIDHASH(slp,nsd->nsd_cr.cr_uid)->lh_first; 253 nuidp != 0; nuidp = nuidp->nu_hash.le_next) { 254 if (nuidp->nu_cr.cr_uid == nsd->nsd_cr.cr_uid && 255 (!nfsd->nfsd_nd->nd_nam2 || 256 netaddr_match(NU_NETFAM(nuidp), 257 &nuidp->nu_haddr, nfsd->nfsd_nd->nd_nam2))) 258 break; 259 } 260 if (nuidp) { 261 nfsrv_setcred(&nuidp->nu_cr,&nfsd->nfsd_nd->nd_cr); 262 nfsd->nfsd_nd->nd_flag |= ND_KERBFULL; 263 } else { 264 /* 265 * Nope, so we will. 266 */ 267 if (slp->ns_numuids < nuidhash_max) { 268 slp->ns_numuids++; 269 nuidp = (struct nfsuid *) 270 malloc(sizeof (struct nfsuid), M_NFSUID, 271 M_WAITOK); 272 } else 273 nuidp = (struct nfsuid *)0; 274 if ((slp->ns_flag & SLP_VALID) == 0) { 275 if (nuidp) 276 free((caddr_t)nuidp, M_NFSUID); 277 } else { 278 if (nuidp == (struct nfsuid *)0) { 279 nuidp = slp->ns_uidlruhead.tqh_first; 280 LIST_REMOVE(nuidp, nu_hash); 281 TAILQ_REMOVE(&slp->ns_uidlruhead, nuidp, 282 nu_lru); 283 if (nuidp->nu_flag & NU_NAM) 284 m_freem(nuidp->nu_nam); 285 } 286 nuidp->nu_flag = 0; 287 nuidp->nu_cr = nsd->nsd_cr; 288 if (nuidp->nu_cr.cr_ngroups > NGROUPS) 289 nuidp->nu_cr.cr_ngroups = NGROUPS; 290 nuidp->nu_cr.cr_ref = 1; 291 nuidp->nu_timestamp = nsd->nsd_timestamp; 292 nuidp->nu_expire = time.tv_sec + nsd->nsd_ttl; 293 /* 294 * and save the session key in nu_key. 295 */ 296 memcpy(nuidp->nu_key, nsd->nsd_key, 297 sizeof(nsd->nsd_key)); 298 if (nfsd->nfsd_nd->nd_nam2) { 299 struct sockaddr_in *saddr; 300 301 saddr = mtod(nfsd->nfsd_nd->nd_nam2, 302 struct sockaddr_in *); 303 switch (saddr->sin_family) { 304 case AF_INET: 305 nuidp->nu_flag |= NU_INETADDR; 306 nuidp->nu_inetaddr = 307 saddr->sin_addr.s_addr; 308 break; 309 case AF_ISO: 310 default: 311 nuidp->nu_flag |= NU_NAM; 312 nuidp->nu_nam = m_copym( 313 nfsd->nfsd_nd->nd_nam2, 0, 314 M_COPYALL, M_WAIT); 315 break; 316 }; 317 } 318 TAILQ_INSERT_TAIL(&slp->ns_uidlruhead, nuidp, 319 nu_lru); 320 LIST_INSERT_HEAD(NUIDHASH(slp, nsd->nsd_uid), 321 nuidp, nu_hash); 322 nfsrv_setcred(&nuidp->nu_cr, 323 &nfsd->nfsd_nd->nd_cr); 324 nfsd->nfsd_nd->nd_flag |= ND_KERBFULL; 325 } 326 } 327 } 328 if ((SCARG(uap, flag) & NFSSVC_AUTHINFAIL) && 329 (nfsd = nsd->nsd_nfsd)) 330 nfsd->nfsd_flag |= NFSD_AUTHFAIL; 331 error = nfssvc_nfsd(nsd, SCARG(uap, argp), l); 332 #endif /* !NFSSERVER */ 333 } 334 if (error == EINTR || error == ERESTART) 335 error = 0; 336 return (error); 337 } 338 339 #ifdef NFSSERVER 340 /* 341 * Adds a socket to the list for servicing by nfsds. 342 */ 343 int 344 nfssvc_addsock(fp, mynam) 345 struct file *fp; 346 struct mbuf *mynam; 347 { 348 struct mbuf *m; 349 int siz; 350 struct nfssvc_sock *slp; 351 struct socket *so; 352 struct nfssvc_sock *tslp; 353 int error, s; 354 355 so = (struct socket *)fp->f_data; 356 tslp = (struct nfssvc_sock *)0; 357 /* 358 * Add it to the list, as required. 359 */ 360 if (so->so_proto->pr_protocol == IPPROTO_UDP) { 361 #ifdef INET6 362 if (so->so_proto->pr_domain->dom_family == AF_INET6) 363 tslp = nfs_udp6sock; 364 else 365 #endif 366 tslp = nfs_udpsock; 367 if (tslp->ns_flag & SLP_VALID) { 368 m_freem(mynam); 369 return (EPERM); 370 } 371 #ifdef ISO 372 } else if (so->so_proto->pr_protocol == ISOPROTO_CLTP) { 373 tslp = nfs_cltpsock; 374 if (tslp->ns_flag & SLP_VALID) { 375 m_freem(mynam); 376 return (EPERM); 377 } 378 #endif /* ISO */ 379 } 380 if (so->so_type == SOCK_STREAM) 381 siz = NFS_MAXPACKET + sizeof (u_long); 382 else 383 siz = NFS_MAXPACKET; 384 error = soreserve(so, siz, siz); 385 if (error) { 386 m_freem(mynam); 387 return (error); 388 } 389 390 /* 391 * Set protocol specific options { for now TCP only } and 392 * reserve some space. For datagram sockets, this can get called 393 * repeatedly for the same socket, but that isn't harmful. 394 */ 395 if (so->so_type == SOCK_STREAM) { 396 MGET(m, M_WAIT, MT_SOOPTS); 397 *mtod(m, int32_t *) = 1; 398 m->m_len = sizeof(int32_t); 399 sosetopt(so, SOL_SOCKET, SO_KEEPALIVE, m); 400 } 401 if ((so->so_proto->pr_domain->dom_family == AF_INET 402 #ifdef INET6 403 || so->so_proto->pr_domain->dom_family == AF_INET6 404 #endif 405 ) && 406 so->so_proto->pr_protocol == IPPROTO_TCP) { 407 MGET(m, M_WAIT, MT_SOOPTS); 408 *mtod(m, int32_t *) = 1; 409 m->m_len = sizeof(int32_t); 410 sosetopt(so, IPPROTO_TCP, TCP_NODELAY, m); 411 } 412 so->so_rcv.sb_flags &= ~SB_NOINTR; 413 so->so_rcv.sb_timeo = 0; 414 so->so_snd.sb_flags &= ~SB_NOINTR; 415 so->so_snd.sb_timeo = 0; 416 if (tslp) 417 slp = tslp; 418 else { 419 slp = (struct nfssvc_sock *) 420 malloc(sizeof (struct nfssvc_sock), M_NFSSVC, M_WAITOK); 421 memset((caddr_t)slp, 0, sizeof (struct nfssvc_sock)); 422 TAILQ_INIT(&slp->ns_uidlruhead); 423 TAILQ_INSERT_TAIL(&nfssvc_sockhead, slp, ns_chain); 424 } 425 slp->ns_so = so; 426 slp->ns_nam = mynam; 427 fp->f_count++; 428 slp->ns_fp = fp; 429 s = splsoftnet(); 430 so->so_upcallarg = (caddr_t)slp; 431 so->so_upcall = nfsrv_rcv; 432 so->so_rcv.sb_flags |= SB_UPCALL; 433 slp->ns_flag = (SLP_VALID | SLP_NEEDQ); 434 nfsrv_wakenfsd(slp); 435 splx(s); 436 return (0); 437 } 438 439 /* 440 * Called by nfssvc() for nfsds. Just loops around servicing rpc requests 441 * until it is killed by a signal. 442 */ 443 int 444 nfssvc_nfsd(nsd, argp, l) 445 struct nfsd_srvargs *nsd; 446 caddr_t argp; 447 struct lwp *l; 448 { 449 struct mbuf *m; 450 int siz; 451 struct nfssvc_sock *slp; 452 struct socket *so; 453 int *solockp; 454 struct nfsd *nfsd = nsd->nsd_nfsd; 455 struct nfsrv_descript *nd = NULL; 456 struct mbuf *mreq; 457 int error = 0, cacherep, s, sotype, writes_todo; 458 u_quad_t cur_usec; 459 struct proc *p = l->l_proc; 460 461 #ifndef nolint 462 cacherep = RC_DOIT; 463 writes_todo = 0; 464 #endif 465 s = splsoftnet(); 466 if (nfsd == (struct nfsd *)0) { 467 nsd->nsd_nfsd = nfsd = (struct nfsd *) 468 malloc(sizeof (struct nfsd), M_NFSD, M_WAITOK); 469 memset((caddr_t)nfsd, 0, sizeof (struct nfsd)); 470 nfsd->nfsd_procp = p; 471 TAILQ_INSERT_TAIL(&nfsd_head, nfsd, nfsd_chain); 472 nfs_numnfsd++; 473 } 474 PHOLD(l); 475 /* 476 * Loop getting rpc requests until SIGKILL. 477 */ 478 for (;;) { 479 if ((nfsd->nfsd_flag & NFSD_REQINPROG) == 0) { 480 while (nfsd->nfsd_slp == (struct nfssvc_sock *)0 && 481 (nfsd_head_flag & NFSD_CHECKSLP) == 0) { 482 nfsd->nfsd_flag |= NFSD_WAITING; 483 nfsd_waiting++; 484 error = tsleep((caddr_t)nfsd, PSOCK | PCATCH, 485 "nfsd", 0); 486 nfsd_waiting--; 487 if (error) 488 goto done; 489 } 490 if (nfsd->nfsd_slp == (struct nfssvc_sock *)0 && 491 (nfsd_head_flag & NFSD_CHECKSLP) != 0) { 492 for (slp = nfssvc_sockhead.tqh_first; slp != 0; 493 slp = slp->ns_chain.tqe_next) { 494 if ((slp->ns_flag & (SLP_VALID | SLP_DOREC)) 495 == (SLP_VALID | SLP_DOREC)) { 496 slp->ns_flag &= ~SLP_DOREC; 497 slp->ns_sref++; 498 nfsd->nfsd_slp = slp; 499 break; 500 } 501 } 502 if (slp == 0) 503 nfsd_head_flag &= ~NFSD_CHECKSLP; 504 } 505 if ((slp = nfsd->nfsd_slp) == (struct nfssvc_sock *)0) 506 continue; 507 if (slp->ns_flag & SLP_VALID) { 508 if (slp->ns_flag & SLP_DISCONN) 509 nfsrv_zapsock(slp); 510 else if (slp->ns_flag & SLP_NEEDQ) { 511 slp->ns_flag &= ~SLP_NEEDQ; 512 (void) nfs_sndlock(&slp->ns_solock, 513 (struct nfsreq *)0); 514 nfsrv_rcv(slp->ns_so, (caddr_t)slp, 515 M_WAIT); 516 nfs_sndunlock(&slp->ns_solock); 517 } 518 error = nfsrv_dorec(slp, nfsd, &nd); 519 cur_usec = (u_quad_t)time.tv_sec * 1000000 + 520 (u_quad_t)time.tv_usec; 521 if (error && slp->ns_tq.lh_first && 522 slp->ns_tq.lh_first->nd_time <= cur_usec) { 523 error = 0; 524 cacherep = RC_DOIT; 525 writes_todo = 1; 526 } else 527 writes_todo = 0; 528 nfsd->nfsd_flag |= NFSD_REQINPROG; 529 } 530 } else { 531 error = 0; 532 slp = nfsd->nfsd_slp; 533 } 534 if (error || (slp->ns_flag & SLP_VALID) == 0) { 535 if (nd) { 536 free((caddr_t)nd, M_NFSRVDESC); 537 nd = NULL; 538 } 539 nfsd->nfsd_slp = (struct nfssvc_sock *)0; 540 nfsd->nfsd_flag &= ~NFSD_REQINPROG; 541 nfsrv_slpderef(slp); 542 continue; 543 } 544 splx(s); 545 so = slp->ns_so; 546 sotype = so->so_type; 547 if (so->so_proto->pr_flags & PR_CONNREQUIRED) 548 solockp = &slp->ns_solock; 549 else 550 solockp = (int *)0; 551 if (nd) { 552 nd->nd_starttime = time; 553 if (nd->nd_nam2) 554 nd->nd_nam = nd->nd_nam2; 555 else 556 nd->nd_nam = slp->ns_nam; 557 558 /* 559 * Check to see if authorization is needed. 560 */ 561 if (nfsd->nfsd_flag & NFSD_NEEDAUTH) { 562 nfsd->nfsd_flag &= ~NFSD_NEEDAUTH; 563 nsd->nsd_haddr = mtod(nd->nd_nam, 564 struct sockaddr_in *)->sin_addr.s_addr; 565 nsd->nsd_authlen = nfsd->nfsd_authlen; 566 nsd->nsd_verflen = nfsd->nfsd_verflen; 567 if (!copyout(nfsd->nfsd_authstr,nsd->nsd_authstr, 568 nfsd->nfsd_authlen) && 569 !copyout(nfsd->nfsd_verfstr, nsd->nsd_verfstr, 570 nfsd->nfsd_verflen) && 571 !copyout((caddr_t)nsd, argp, sizeof (*nsd))) { 572 PRELE(l); 573 return (ENEEDAUTH); 574 } 575 cacherep = RC_DROPIT; 576 } else 577 cacherep = nfsrv_getcache(nd, slp, &mreq); 578 579 /* 580 * Check for just starting up for NQNFS and send 581 * fake "try again later" replies to the NQNFS clients. 582 */ 583 if (notstarted && nqnfsstarttime <= time.tv_sec) { 584 if (modify_flag) { 585 nqnfsstarttime = time.tv_sec + nqsrv_writeslack; 586 modify_flag = 0; 587 } else 588 notstarted = 0; 589 } 590 if (notstarted) { 591 if ((nd->nd_flag & ND_NQNFS) == 0) 592 cacherep = RC_DROPIT; 593 else if (nd->nd_procnum != NFSPROC_WRITE) { 594 nd->nd_procnum = NFSPROC_NOOP; 595 nd->nd_repstat = NQNFS_TRYLATER; 596 cacherep = RC_DOIT; 597 } else 598 modify_flag = 1; 599 } else if (nfsd->nfsd_flag & NFSD_AUTHFAIL) { 600 nfsd->nfsd_flag &= ~NFSD_AUTHFAIL; 601 nd->nd_procnum = NFSPROC_NOOP; 602 nd->nd_repstat = (NFSERR_AUTHERR | AUTH_TOOWEAK); 603 cacherep = RC_DOIT; 604 } 605 } 606 607 /* 608 * Loop to get all the write rpc relies that have been 609 * gathered together. 610 */ 611 do { 612 #ifdef DIAGNOSTIC 613 int lockcount; 614 #endif 615 switch (cacherep) { 616 case RC_DOIT: 617 #ifdef DIAGNOSTIC 618 /* 619 * NFS server procs should neither release 620 * locks already held, nor leave things 621 * locked. Catch this sooner, rather than 622 * later (when we try to relock something we 623 * already have locked). Careful inspection 624 * of the failing routine usually turns up the 625 * lock leak.. once we know what it is.. 626 */ 627 lockcount = p->p_locks; 628 #endif 629 if (writes_todo || (!(nd->nd_flag & ND_NFSV3) && 630 nd->nd_procnum == NFSPROC_WRITE && 631 nfsrvw_procrastinate > 0 && !notstarted)) 632 error = nfsrv_writegather(&nd, slp, 633 nfsd->nfsd_procp, &mreq); 634 else 635 error = (*(nfsrv3_procs[nd->nd_procnum]))(nd, 636 slp, nfsd->nfsd_procp, &mreq); 637 #ifdef DIAGNOSTIC 638 if (p->p_locks != lockcount) { 639 /* 640 * If you see this panic, audit 641 * nfsrv3_procs[nd->nd_procnum] for vnode 642 * locking errors (usually, it's due to 643 * forgetting to vput() something). 644 */ 645 #ifdef DEBUG 646 extern void printlockedvnodes(void); 647 printlockedvnodes(); 648 #endif 649 printf("nfsd: locking botch in op %d" 650 " (before %d, after %d)\n", 651 nd ? nd->nd_procnum : -1, 652 lockcount, p->p_locks); 653 } 654 #endif 655 if (mreq == NULL) 656 break; 657 if (error) { 658 if (nd->nd_procnum != NQNFSPROC_VACATED) 659 nfsstats.srv_errs++; 660 nfsrv_updatecache(nd, FALSE, mreq); 661 if (nd->nd_nam2) 662 m_freem(nd->nd_nam2); 663 break; 664 } 665 nfsstats.srvrpccnt[nd->nd_procnum]++; 666 nfsrv_updatecache(nd, TRUE, mreq); 667 nd->nd_mrep = (struct mbuf *)0; 668 case RC_REPLY: 669 m = mreq; 670 siz = 0; 671 while (m) { 672 siz += m->m_len; 673 m = m->m_next; 674 } 675 if (siz <= 0 || siz > NFS_MAXPACKET) { 676 printf("mbuf siz=%d\n",siz); 677 panic("Bad nfs svc reply"); 678 } 679 m = mreq; 680 m->m_pkthdr.len = siz; 681 m->m_pkthdr.rcvif = (struct ifnet *)0; 682 /* 683 * For stream protocols, prepend a Sun RPC 684 * Record Mark. 685 */ 686 if (sotype == SOCK_STREAM) { 687 M_PREPEND(m, NFSX_UNSIGNED, M_WAIT); 688 *mtod(m, u_int32_t *) = htonl(0x80000000 | siz); 689 } 690 if (solockp) 691 (void) nfs_sndlock(solockp, (struct nfsreq *)0); 692 if (slp->ns_flag & SLP_VALID) 693 error = nfs_send(so, nd->nd_nam2, m, NULL); 694 else { 695 error = EPIPE; 696 m_freem(m); 697 } 698 if (nfsrtton) 699 nfsd_rt(sotype, nd, cacherep); 700 if (nd->nd_nam2) 701 MFREE(nd->nd_nam2, m); 702 if (nd->nd_mrep) 703 m_freem(nd->nd_mrep); 704 if (error == EPIPE) 705 nfsrv_zapsock(slp); 706 if (solockp) 707 nfs_sndunlock(solockp); 708 if (error == EINTR || error == ERESTART) { 709 free((caddr_t)nd, M_NFSRVDESC); 710 nfsrv_slpderef(slp); 711 s = splsoftnet(); 712 goto done; 713 } 714 break; 715 case RC_DROPIT: 716 if (nfsrtton) 717 nfsd_rt(sotype, nd, cacherep); 718 m_freem(nd->nd_mrep); 719 m_freem(nd->nd_nam2); 720 break; 721 }; 722 if (nd) { 723 FREE((caddr_t)nd, M_NFSRVDESC); 724 nd = NULL; 725 } 726 727 /* 728 * Check to see if there are outstanding writes that 729 * need to be serviced. 730 */ 731 cur_usec = (u_quad_t)time.tv_sec * 1000000 + 732 (u_quad_t)time.tv_usec; 733 s = splsoftclock(); 734 if (slp->ns_tq.lh_first && 735 slp->ns_tq.lh_first->nd_time <= cur_usec) { 736 cacherep = RC_DOIT; 737 writes_todo = 1; 738 } else 739 writes_todo = 0; 740 splx(s); 741 } while (writes_todo); 742 s = splsoftnet(); 743 if (nfsrv_dorec(slp, nfsd, &nd)) { 744 nfsd->nfsd_flag &= ~NFSD_REQINPROG; 745 nfsd->nfsd_slp = NULL; 746 nfsrv_slpderef(slp); 747 } 748 } 749 done: 750 PRELE(l); 751 TAILQ_REMOVE(&nfsd_head, nfsd, nfsd_chain); 752 splx(s); 753 free((caddr_t)nfsd, M_NFSD); 754 nsd->nsd_nfsd = (struct nfsd *)0; 755 if (--nfs_numnfsd == 0) 756 nfsrv_init(TRUE); /* Reinitialize everything */ 757 return (error); 758 } 759 760 /* 761 * Shut down a socket associated with an nfssvc_sock structure. 762 * Should be called with the send lock set, if required. 763 * The trick here is to increment the sref at the start, so that the nfsds 764 * will stop using it and clear ns_flag at the end so that it will not be 765 * reassigned during cleanup. 766 */ 767 void 768 nfsrv_zapsock(slp) 769 struct nfssvc_sock *slp; 770 { 771 struct nfsuid *nuidp, *nnuidp; 772 struct nfsrv_descript *nwp, *nnwp; 773 struct socket *so; 774 struct file *fp; 775 struct mbuf *m; 776 int s; 777 778 slp->ns_flag &= ~SLP_ALLFLAGS; 779 fp = slp->ns_fp; 780 if (fp) { 781 FILE_USE(fp); 782 slp->ns_fp = (struct file *)0; 783 so = slp->ns_so; 784 so->so_upcall = NULL; 785 so->so_upcallarg = NULL; 786 so->so_rcv.sb_flags &= ~SB_UPCALL; 787 soshutdown(so, 2); 788 closef(fp, (struct proc *)0); 789 if (slp->ns_nam) 790 MFREE(slp->ns_nam, m); 791 m_freem(slp->ns_raw); 792 m_freem(slp->ns_rec); 793 for (nuidp = slp->ns_uidlruhead.tqh_first; nuidp != 0; 794 nuidp = nnuidp) { 795 nnuidp = nuidp->nu_lru.tqe_next; 796 LIST_REMOVE(nuidp, nu_hash); 797 TAILQ_REMOVE(&slp->ns_uidlruhead, nuidp, nu_lru); 798 if (nuidp->nu_flag & NU_NAM) 799 m_freem(nuidp->nu_nam); 800 free((caddr_t)nuidp, M_NFSUID); 801 } 802 s = splsoftclock(); 803 for (nwp = slp->ns_tq.lh_first; nwp; nwp = nnwp) { 804 nnwp = nwp->nd_tq.le_next; 805 LIST_REMOVE(nwp, nd_tq); 806 free((caddr_t)nwp, M_NFSRVDESC); 807 } 808 LIST_INIT(&slp->ns_tq); 809 splx(s); 810 } 811 } 812 813 /* 814 * Derefence a server socket structure. If it has no more references and 815 * is no longer valid, you can throw it away. 816 */ 817 void 818 nfsrv_slpderef(slp) 819 struct nfssvc_sock *slp; 820 { 821 if (--(slp->ns_sref) == 0 && (slp->ns_flag & SLP_VALID) == 0) { 822 TAILQ_REMOVE(&nfssvc_sockhead, slp, ns_chain); 823 free((caddr_t)slp, M_NFSSVC); 824 } 825 } 826 827 /* 828 * Initialize the data structures for the server. 829 * Handshake with any new nfsds starting up to avoid any chance of 830 * corruption. 831 */ 832 void 833 nfsrv_init(terminating) 834 int terminating; 835 { 836 struct nfssvc_sock *slp, *nslp; 837 838 if (nfssvc_sockhead_flag & SLP_INIT) 839 panic("nfsd init"); 840 nfssvc_sockhead_flag |= SLP_INIT; 841 if (terminating) { 842 for (slp = nfssvc_sockhead.tqh_first; slp != 0; slp = nslp) { 843 nslp = slp->ns_chain.tqe_next; 844 if (slp->ns_flag & SLP_VALID) 845 nfsrv_zapsock(slp); 846 TAILQ_REMOVE(&nfssvc_sockhead, slp, ns_chain); 847 free((caddr_t)slp, M_NFSSVC); 848 } 849 nfsrv_cleancache(); /* And clear out server cache */ 850 } else 851 nfs_pub.np_valid = 0; 852 853 TAILQ_INIT(&nfssvc_sockhead); 854 nfssvc_sockhead_flag &= ~SLP_INIT; 855 if (nfssvc_sockhead_flag & SLP_WANTINIT) { 856 nfssvc_sockhead_flag &= ~SLP_WANTINIT; 857 wakeup((caddr_t)&nfssvc_sockhead); 858 } 859 860 TAILQ_INIT(&nfsd_head); 861 nfsd_head_flag &= ~NFSD_CHECKSLP; 862 863 nfs_udpsock = (struct nfssvc_sock *) 864 malloc(sizeof (struct nfssvc_sock), M_NFSSVC, M_WAITOK); 865 memset((caddr_t)nfs_udpsock, 0, sizeof (struct nfssvc_sock)); 866 TAILQ_INIT(&nfs_udpsock->ns_uidlruhead); 867 TAILQ_INSERT_HEAD(&nfssvc_sockhead, nfs_udpsock, ns_chain); 868 869 #ifdef INET6 870 nfs_udp6sock = (struct nfssvc_sock *) 871 malloc(sizeof (struct nfssvc_sock), M_NFSSVC, M_WAITOK); 872 memset((caddr_t)nfs_udp6sock, 0, sizeof (struct nfssvc_sock)); 873 TAILQ_INIT(&nfs_udp6sock->ns_uidlruhead); 874 TAILQ_INSERT_TAIL(&nfssvc_sockhead, nfs_udp6sock, ns_chain); 875 #endif 876 877 #ifdef ISO 878 nfs_cltpsock = (struct nfssvc_sock *) 879 malloc(sizeof (struct nfssvc_sock), M_NFSSVC, M_WAITOK); 880 memset((caddr_t)nfs_cltpsock, 0, sizeof (struct nfssvc_sock)); 881 TAILQ_INIT(&nfs_cltpsock->ns_uidlruhead); 882 TAILQ_INSERT_TAIL(&nfssvc_sockhead, nfs_cltpsock, ns_chain); 883 #endif 884 } 885 886 /* 887 * Add entries to the server monitor log. 888 */ 889 static void 890 nfsd_rt(sotype, nd, cacherep) 891 int sotype; 892 struct nfsrv_descript *nd; 893 int cacherep; 894 { 895 struct drt *rt; 896 897 rt = &nfsdrt.drt[nfsdrt.pos]; 898 if (cacherep == RC_DOIT) 899 rt->flag = 0; 900 else if (cacherep == RC_REPLY) 901 rt->flag = DRT_CACHEREPLY; 902 else 903 rt->flag = DRT_CACHEDROP; 904 if (sotype == SOCK_STREAM) 905 rt->flag |= DRT_TCP; 906 if (nd->nd_flag & ND_NQNFS) 907 rt->flag |= DRT_NQNFS; 908 else if (nd->nd_flag & ND_NFSV3) 909 rt->flag |= DRT_NFSV3; 910 rt->proc = nd->nd_procnum; 911 if (mtod(nd->nd_nam, struct sockaddr *)->sa_family == AF_INET) 912 rt->ipadr = mtod(nd->nd_nam, struct sockaddr_in *)->sin_addr.s_addr; 913 else 914 rt->ipadr = INADDR_ANY; 915 rt->resptime = ((time.tv_sec - nd->nd_starttime.tv_sec) * 1000000) + 916 (time.tv_usec - nd->nd_starttime.tv_usec); 917 rt->tstamp = time; 918 nfsdrt.pos = (nfsdrt.pos + 1) % NFSRTTLOGSIZ; 919 } 920 #endif /* NFSSERVER */ 921 922 #ifdef NFS 923 924 int nfs_defect = 0; 925 /* 926 * Asynchronous I/O threads for client nfs. 927 * They do read-ahead and write-behind operations on the block I/O cache. 928 * Never returns unless it fails or gets killed. 929 */ 930 931 int 932 nfssvc_iod(l) 933 struct lwp *l; 934 { 935 struct buf *bp; 936 int i, myiod; 937 struct nfsmount *nmp; 938 int error = 0; 939 struct proc *p = l->l_proc; 940 941 /* 942 * Assign my position or return error if too many already running 943 */ 944 myiod = -1; 945 for (i = 0; i < NFS_MAXASYNCDAEMON; i++) 946 if (nfs_asyncdaemon[i] == NULL) { 947 myiod = i; 948 break; 949 } 950 if (myiod == -1) 951 return (EBUSY); 952 nfs_asyncdaemon[myiod] = p; 953 nfs_numasync++; 954 PHOLD(l); 955 /* 956 * Just loop around doing our stuff until SIGKILL 957 */ 958 for (;;) { 959 while (((nmp = nfs_iodmount[myiod]) == NULL 960 || nmp->nm_bufq.tqh_first == NULL) 961 && error == 0) { 962 if (nmp) 963 nmp->nm_bufqiods--; 964 nfs_iodwant[myiod] = p; 965 nfs_iodmount[myiod] = NULL; 966 error = tsleep((caddr_t)&nfs_iodwant[myiod], 967 PWAIT | PCATCH, "nfsidl", 0); 968 } 969 while (nmp != NULL && (bp = nmp->nm_bufq.tqh_first) != NULL) { 970 /* Take one off the front of the list */ 971 TAILQ_REMOVE(&nmp->nm_bufq, bp, b_freelist); 972 nmp->nm_bufqlen--; 973 if (nmp->nm_bufqwant && nmp->nm_bufqlen < 2 * nfs_numasync) { 974 nmp->nm_bufqwant = FALSE; 975 wakeup(&nmp->nm_bufq); 976 } 977 (void) nfs_doio(bp, NULL); 978 /* 979 * If there are more than one iod on this mount, then defect 980 * so that the iods can be shared out fairly between the mounts 981 */ 982 if (nfs_defect && nmp->nm_bufqiods > 1) { 983 nfs_iodmount[myiod] = NULL; 984 nmp->nm_bufqiods--; 985 break; 986 } 987 } 988 if (error) { 989 break; 990 } 991 } 992 PRELE(l); 993 if (nmp) 994 nmp->nm_bufqiods--; 995 nfs_iodwant[myiod] = NULL; 996 nfs_iodmount[myiod] = NULL; 997 nfs_asyncdaemon[myiod] = NULL; 998 nfs_numasync--; 999 1000 return (error); 1001 } 1002 1003 void 1004 start_nfsio(arg) 1005 void *arg; 1006 { 1007 nfssvc_iod(curproc); 1008 1009 kthread_exit(0); 1010 } 1011 1012 void 1013 nfs_getset_niothreads(set) 1014 int set; 1015 { 1016 int i, have, start; 1017 1018 for (have = 0, i = 0; i < NFS_MAXASYNCDAEMON; i++) 1019 if (nfs_asyncdaemon[i] != NULL) 1020 have++; 1021 1022 if (set) { 1023 /* clamp to sane range */ 1024 nfs_niothreads = max(0, min(nfs_niothreads, NFS_MAXASYNCDAEMON)); 1025 1026 start = nfs_niothreads - have; 1027 1028 while (start > 0) { 1029 kthread_create1(start_nfsio, NULL, NULL, "nfsio"); 1030 start--; 1031 } 1032 1033 for (i = 0; (start < 0) && (i < NFS_MAXASYNCDAEMON); i++) 1034 if (nfs_asyncdaemon[i] != NULL) { 1035 psignal(nfs_asyncdaemon[i], SIGKILL); 1036 start++; 1037 } 1038 } else { 1039 if (nfs_niothreads >= 0) 1040 nfs_niothreads = have; 1041 } 1042 } 1043 1044 /* 1045 * Get an authorization string for the uid by having the mount_nfs sitting 1046 * on this mount point porpous out of the kernel and do it. 1047 */ 1048 int 1049 nfs_getauth(nmp, rep, cred, auth_str, auth_len, verf_str, verf_len, key) 1050 struct nfsmount *nmp; 1051 struct nfsreq *rep; 1052 struct ucred *cred; 1053 char **auth_str; 1054 int *auth_len; 1055 char *verf_str; 1056 int *verf_len; 1057 NFSKERBKEY_T key; /* return session key */ 1058 { 1059 int error = 0; 1060 1061 while ((nmp->nm_iflag & NFSMNT_WAITAUTH) == 0) { 1062 nmp->nm_iflag |= NFSMNT_WANTAUTH; 1063 (void) tsleep((caddr_t)&nmp->nm_authtype, PSOCK, 1064 "nfsauth1", 2 * hz); 1065 error = nfs_sigintr(nmp, rep, rep->r_procp); 1066 if (error) { 1067 nmp->nm_iflag &= ~NFSMNT_WANTAUTH; 1068 return (error); 1069 } 1070 } 1071 nmp->nm_iflag &= ~(NFSMNT_WAITAUTH | NFSMNT_WANTAUTH); 1072 nmp->nm_authstr = *auth_str = (char *)malloc(RPCAUTH_MAXSIZ, M_TEMP, M_WAITOK); 1073 nmp->nm_authlen = RPCAUTH_MAXSIZ; 1074 nmp->nm_verfstr = verf_str; 1075 nmp->nm_verflen = *verf_len; 1076 nmp->nm_authuid = cred->cr_uid; 1077 wakeup((caddr_t)&nmp->nm_authstr); 1078 1079 /* 1080 * And wait for mount_nfs to do its stuff. 1081 */ 1082 while ((nmp->nm_iflag & NFSMNT_HASAUTH) == 0 && error == 0) { 1083 (void) tsleep((caddr_t)&nmp->nm_authlen, PSOCK, 1084 "nfsauth2", 2 * hz); 1085 error = nfs_sigintr(nmp, rep, rep->r_procp); 1086 } 1087 if (nmp->nm_iflag & NFSMNT_AUTHERR) { 1088 nmp->nm_iflag &= ~NFSMNT_AUTHERR; 1089 error = EAUTH; 1090 } 1091 if (error) 1092 free((caddr_t)*auth_str, M_TEMP); 1093 else { 1094 *auth_len = nmp->nm_authlen; 1095 *verf_len = nmp->nm_verflen; 1096 memcpy((caddr_t)key, (caddr_t)nmp->nm_key, sizeof (key)); 1097 } 1098 nmp->nm_iflag &= ~NFSMNT_HASAUTH; 1099 nmp->nm_iflag |= NFSMNT_WAITAUTH; 1100 if (nmp->nm_iflag & NFSMNT_WANTAUTH) { 1101 nmp->nm_iflag &= ~NFSMNT_WANTAUTH; 1102 wakeup((caddr_t)&nmp->nm_authtype); 1103 } 1104 return (error); 1105 } 1106 1107 /* 1108 * Get a nickname authenticator and verifier. 1109 */ 1110 int 1111 nfs_getnickauth(nmp, cred, auth_str, auth_len, verf_str, verf_len) 1112 struct nfsmount *nmp; 1113 struct ucred *cred; 1114 char **auth_str; 1115 int *auth_len; 1116 char *verf_str; 1117 int verf_len; 1118 { 1119 struct nfsuid *nuidp; 1120 u_int32_t *nickp, *verfp; 1121 struct timeval ktvin, ktvout; 1122 1123 #ifdef DIAGNOSTIC 1124 if (verf_len < (4 * NFSX_UNSIGNED)) 1125 panic("nfs_getnickauth verf too small"); 1126 #endif 1127 for (nuidp = NMUIDHASH(nmp, cred->cr_uid)->lh_first; 1128 nuidp != 0; nuidp = nuidp->nu_hash.le_next) { 1129 if (nuidp->nu_cr.cr_uid == cred->cr_uid) 1130 break; 1131 } 1132 if (!nuidp || nuidp->nu_expire < time.tv_sec) 1133 return (EACCES); 1134 1135 /* 1136 * Move to the end of the lru list (end of lru == most recently used). 1137 */ 1138 TAILQ_REMOVE(&nmp->nm_uidlruhead, nuidp, nu_lru); 1139 TAILQ_INSERT_TAIL(&nmp->nm_uidlruhead, nuidp, nu_lru); 1140 1141 nickp = (u_int32_t *)malloc(2 * NFSX_UNSIGNED, M_TEMP, M_WAITOK); 1142 *nickp++ = txdr_unsigned(RPCAKN_NICKNAME); 1143 *nickp = txdr_unsigned(nuidp->nu_nickname); 1144 *auth_str = (char *)nickp; 1145 *auth_len = 2 * NFSX_UNSIGNED; 1146 1147 /* 1148 * Now we must encrypt the verifier and package it up. 1149 */ 1150 verfp = (u_int32_t *)verf_str; 1151 *verfp++ = txdr_unsigned(RPCAKN_NICKNAME); 1152 if (time.tv_sec > nuidp->nu_timestamp.tv_sec || 1153 (time.tv_sec == nuidp->nu_timestamp.tv_sec && 1154 time.tv_usec > nuidp->nu_timestamp.tv_usec)) 1155 nuidp->nu_timestamp = time; 1156 else 1157 nuidp->nu_timestamp.tv_usec++; 1158 ktvin.tv_sec = txdr_unsigned(nuidp->nu_timestamp.tv_sec); 1159 ktvin.tv_usec = txdr_unsigned(nuidp->nu_timestamp.tv_usec); 1160 1161 /* 1162 * Now encrypt the timestamp verifier in ecb mode using the session 1163 * key. 1164 */ 1165 #ifdef NFSKERB 1166 XXX 1167 #endif 1168 1169 *verfp++ = ktvout.tv_sec; 1170 *verfp++ = ktvout.tv_usec; 1171 *verfp = 0; 1172 return (0); 1173 } 1174 1175 /* 1176 * Save the current nickname in a hash list entry on the mount point. 1177 */ 1178 int 1179 nfs_savenickauth(nmp, cred, len, key, mdp, dposp, mrep) 1180 struct nfsmount *nmp; 1181 struct ucred *cred; 1182 int len; 1183 NFSKERBKEY_T key; 1184 struct mbuf **mdp; 1185 char **dposp; 1186 struct mbuf *mrep; 1187 { 1188 struct nfsuid *nuidp; 1189 u_int32_t *tl; 1190 int32_t t1; 1191 struct mbuf *md = *mdp; 1192 struct timeval ktvin, ktvout; 1193 u_int32_t nick; 1194 char *dpos = *dposp, *cp2; 1195 int deltasec, error = 0; 1196 1197 if (len == (3 * NFSX_UNSIGNED)) { 1198 nfsm_dissect(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 1199 ktvin.tv_sec = *tl++; 1200 ktvin.tv_usec = *tl++; 1201 nick = fxdr_unsigned(u_int32_t, *tl); 1202 1203 /* 1204 * Decrypt the timestamp in ecb mode. 1205 */ 1206 #ifdef NFSKERB 1207 XXX 1208 #endif 1209 ktvout.tv_sec = fxdr_unsigned(long, ktvout.tv_sec); 1210 ktvout.tv_usec = fxdr_unsigned(long, ktvout.tv_usec); 1211 deltasec = time.tv_sec - ktvout.tv_sec; 1212 if (deltasec < 0) 1213 deltasec = -deltasec; 1214 /* 1215 * If ok, add it to the hash list for the mount point. 1216 */ 1217 if (deltasec <= NFS_KERBCLOCKSKEW) { 1218 if (nmp->nm_numuids < nuidhash_max) { 1219 nmp->nm_numuids++; 1220 nuidp = (struct nfsuid *) 1221 malloc(sizeof (struct nfsuid), M_NFSUID, 1222 M_WAITOK); 1223 } else { 1224 nuidp = nmp->nm_uidlruhead.tqh_first; 1225 LIST_REMOVE(nuidp, nu_hash); 1226 TAILQ_REMOVE(&nmp->nm_uidlruhead, nuidp, 1227 nu_lru); 1228 } 1229 nuidp->nu_flag = 0; 1230 nuidp->nu_cr.cr_uid = cred->cr_uid; 1231 nuidp->nu_expire = time.tv_sec + NFS_KERBTTL; 1232 nuidp->nu_timestamp = ktvout; 1233 nuidp->nu_nickname = nick; 1234 memcpy(nuidp->nu_key, key, sizeof (key)); 1235 TAILQ_INSERT_TAIL(&nmp->nm_uidlruhead, nuidp, 1236 nu_lru); 1237 LIST_INSERT_HEAD(NMUIDHASH(nmp, cred->cr_uid), 1238 nuidp, nu_hash); 1239 } 1240 } else 1241 nfsm_adv(nfsm_rndup(len)); 1242 nfsmout: 1243 *mdp = md; 1244 *dposp = dpos; 1245 return (error); 1246 } 1247 #endif /* NFS */ 1248
Indexes created Tue Oct 21 05:10:09 GMT 2025