nfsd.c revision 1.28.2.1
1 /* $NetBSD: nfsd.c,v 1.28.2.1 1999/09/29 07:15:26 he Exp $ */ 2 3 /* 4 * Copyright (c) 1989, 1993, 1994 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 39 #include <sys/cdefs.h> 40 #ifndef lint 41 __COPYRIGHT("@(#) Copyright (c) 1989, 1993, 1994\n\ 42 The Regents of the University of California. All rights reserved.\n"); 43 #endif not lint 44 45 #ifndef lint 46 #if 0 47 static char sccsid[] = "@(#)nfsd.c 8.9 (Berkeley) 3/29/95"; 48 #else 49 __RCSID("$NetBSD: nfsd.c,v 1.28.2.1 1999/09/29 07:15:26 he Exp $"); 50 #endif 51 #endif /* not lint */ 52 53 #include <sys/param.h> 54 #include <sys/ioctl.h> 55 #include <sys/stat.h> 56 #include <sys/wait.h> 57 #include <sys/uio.h> 58 #include <sys/ucred.h> 59 #include <sys/mount.h> 60 #include <sys/socket.h> 61 #include <sys/socketvar.h> 62 63 #include <rpc/rpc.h> 64 #include <rpc/pmap_clnt.h> 65 #include <rpc/pmap_prot.h> 66 67 #ifdef ISO 68 #include <netiso/iso.h> 69 #endif 70 #include <nfs/rpcv2.h> 71 #include <nfs/nfsproto.h> 72 #include <nfs/nfs.h> 73 74 #ifdef NFSKERB 75 #include <kerberosIV/des.h> 76 #include <kerberosIV/krb.h> 77 #endif 78 79 #include <err.h> 80 #include <errno.h> 81 #include <fcntl.h> 82 #include <grp.h> 83 #include <pwd.h> 84 #include <signal.h> 85 #include <stdio.h> 86 #include <stdlib.h> 87 #include <string.h> 88 #include <syslog.h> 89 #include <unistd.h> 90 91 /* Global defs */ 92 #ifdef DEBUG 93 #define syslog(e, s) fprintf(stderr,(s)) 94 int debug = 1; 95 #else 96 int debug = 0; 97 #endif 98 99 struct nfsd_srvargs nsd; 100 101 #ifdef NFSKERB 102 char lnam[ANAME_SZ]; 103 KTEXT_ST kt; 104 AUTH_DAT kauth; 105 char inst[INST_SZ]; 106 struct nfsrpc_fullblock kin, kout; 107 struct nfsrpc_fullverf kverf; 108 NFSKERBKEY_T kivec; 109 struct timeval ktv; 110 NFSKERBKEYSCHED_T kerb_keysched; 111 #endif 112 113 int main __P((int, char **)); 114 void nonfs __P((int)); 115 void reapchild __P((int)); 116 void usage __P((void)); 117 118 /* 119 * Nfs server daemon mostly just a user context for nfssvc() 120 * 121 * 1 - do file descriptor and signal cleanup 122 * 2 - fork the nfsd(s) 123 * 3 - create server socket(s) 124 * 4 - register socket with portmap 125 * 126 * For connectionless protocols, just pass the socket into the kernel via 127 * nfssvc(). 128 * For connection based sockets, loop doing accepts. When you get a new 129 * socket from accept, pass the msgsock into the kernel via nfssvc(). 130 * The arguments are: 131 * -c - support iso cltp clients 132 * -r - reregister with portmapper 133 * -t - support tcp nfs clients 134 * -u - support udp nfs clients 135 * followed by "n" which is the number of nfsds' to fork off 136 */ 137 int 138 main(argc, argv) 139 int argc; 140 char *argv[]; 141 { 142 struct nfsd_args nfsdargs; 143 struct sockaddr_in inetaddr, inetpeer; 144 #ifdef ISO 145 struct sockaddr_iso isoaddr, isopeer; 146 #endif 147 fd_set ready, sockbits; 148 int ch, cltpflag, connect_type_cnt, i, len, maxsock, msgsock; 149 int nfsdcnt, nfssvc_flag, on, reregister, sock, tcpflag, tcpsock; 150 int tp4cnt, tp4flag, tpipcnt, tpipflag, udpflag; 151 #ifdef NFSKERB 152 struct group *grp; 153 struct passwd *pwd; 154 struct ucred *cr; 155 struct timeval ktv; 156 int tp4sock, tpipsock; 157 char *cp, **cpp; 158 #endif 159 160 #define MAXNFSDCNT 20 161 #define DEFNFSDCNT 4 162 nfsdcnt = DEFNFSDCNT; 163 cltpflag = reregister = tcpflag = tp4cnt = tp4flag = tpipcnt = 0; 164 tpipflag = udpflag = 0; 165 maxsock = tcpsock = 0; 166 #ifdef ISO 167 #define GETOPT "cn:rtu" 168 #define USAGE "[-crtu] [-n num_servers]" 169 #else 170 #define GETOPT "n:rtu" 171 #define USAGE "[-rtu] [-n num_servers]" 172 #endif 173 while ((ch = getopt(argc, argv, GETOPT)) != -1) 174 switch (ch) { 175 case 'n': 176 nfsdcnt = atoi(optarg); 177 if (nfsdcnt < 1 || nfsdcnt > MAXNFSDCNT) { 178 warnx("nfsd count %d; reset to %d", nfsdcnt, DEFNFSDCNT); 179 nfsdcnt = DEFNFSDCNT; 180 } 181 break; 182 case 'r': 183 reregister = 1; 184 break; 185 case 't': 186 tcpflag = 1; 187 break; 188 case 'u': 189 udpflag = 1; 190 break; 191 #ifdef ISO 192 case 'c': 193 cltpflag = 1; 194 break; 195 #ifdef notyet 196 case 'i': 197 tp4cnt = 1; 198 break; 199 case 'p': 200 tpipcnt = 1; 201 break; 202 #endif /* notyet */ 203 #endif /* ISO */ 204 default: 205 case '?': 206 usage(); 207 }; 208 argv += optind; 209 argc -= optind; 210 211 /* 212 * XXX 213 * Backward compatibility, trailing number is the count of daemons. 214 */ 215 if (argc > 1) 216 usage(); 217 if (argc == 1) { 218 nfsdcnt = atoi(argv[0]); 219 if (nfsdcnt < 1 || nfsdcnt > MAXNFSDCNT) { 220 warnx("nfsd count %d; reset to %d", nfsdcnt, DEFNFSDCNT); 221 nfsdcnt = DEFNFSDCNT; 222 } 223 } 224 225 /* 226 * If none of TCP or UDP are specified, default to UDP only. 227 */ 228 if (tcpflag == 0 && udpflag == 0) 229 udpflag = 1; 230 231 if (debug == 0) { 232 daemon(0, 0); 233 (void)signal(SIGHUP, SIG_IGN); 234 (void)signal(SIGINT, SIG_IGN); 235 (void)signal(SIGQUIT, SIG_IGN); 236 (void)signal(SIGSYS, nonfs); 237 } 238 (void)signal(SIGCHLD, reapchild); 239 240 if (reregister) { 241 if (udpflag && 242 (!pmap_set(RPCPROG_NFS, 2, IPPROTO_UDP, NFS_PORT) || 243 !pmap_set(RPCPROG_NFS, 3, IPPROTO_UDP, NFS_PORT))) 244 err(1, "can't register with portmap for UDP."); 245 if (tcpflag && 246 (!pmap_set(RPCPROG_NFS, 2, IPPROTO_TCP, NFS_PORT) || 247 !pmap_set(RPCPROG_NFS, 3, IPPROTO_TCP, NFS_PORT))) 248 err(1, "can't register with portmap for TCP."); 249 exit(0); 250 } 251 openlog("nfsd:", LOG_PID, LOG_DAEMON); 252 253 for (i = 0; i < nfsdcnt; i++) { 254 switch (fork()) { 255 case -1: 256 syslog(LOG_ERR, "fork: %m"); 257 exit (1); 258 case 0: 259 break; 260 default: 261 continue; 262 } 263 264 setproctitle("server"); 265 nfssvc_flag = NFSSVC_NFSD; 266 nsd.nsd_nfsd = NULL; 267 #ifdef NFSKERB 268 if (sizeof (struct nfsrpc_fullverf) != RPCX_FULLVERF || 269 sizeof (struct nfsrpc_fullblock) != RPCX_FULLBLOCK) 270 syslog(LOG_ERR, "Yikes NFSKERB structs not packed!"); 271 nsd.nsd_authstr = (u_char *)&kt; 272 nsd.nsd_authlen = sizeof (kt); 273 nsd.nsd_verfstr = (u_char *)&kverf; 274 nsd.nsd_verflen = sizeof (kverf); 275 #endif 276 while (nfssvc(nfssvc_flag, &nsd) < 0) { 277 if (errno != ENEEDAUTH) { 278 syslog(LOG_ERR, "nfssvc: %m"); 279 exit(1); 280 } 281 nfssvc_flag = NFSSVC_NFSD | NFSSVC_AUTHINFAIL; 282 #ifdef NFSKERB 283 /* 284 * Get the Kerberos ticket out of the authenticator 285 * verify it and convert the principal name to a user 286 * name. The user name is then converted to a set of 287 * user credentials via the password and group file. 288 * Finally, decrypt the timestamp and validate it. 289 * For more info see the IETF Draft "Authentication 290 * in ONC RPC". 291 */ 292 kt.length = ntohl(kt.length); 293 if (gettimeofday(&ktv, (struct timezone *)0) == 0 && 294 kt.length > 0 && kt.length <= 295 (RPCAUTH_MAXSIZ - 3 * NFSX_UNSIGNED)) { 296 kin.w1 = NFS_KERBW1(kt); 297 kt.mbz = 0; 298 (void)strcpy(inst, "*"); 299 if (krb_rd_req(&kt, NFS_KERBSRV, 300 inst, nsd.nsd_haddr, &kauth, "") == RD_AP_OK && 301 krb_kntoln(&kauth, lnam) == KSUCCESS && 302 (pwd = getpwnam(lnam)) != NULL) { 303 cr = &nsd.nsd_cr; 304 cr->cr_uid = pwd->pw_uid; 305 cr->cr_groups[0] = pwd->pw_gid; 306 cr->cr_ngroups = 1; 307 setgrent(); 308 while ((grp = getgrent()) != NULL) { 309 if (grp->gr_gid == cr->cr_groups[0]) 310 continue; 311 for (cpp = grp->gr_mem; 312 *cpp != NULL; ++cpp) 313 if (!strcmp(*cpp, lnam)) 314 break; 315 if (*cpp == NULL) 316 continue; 317 cr->cr_groups[cr->cr_ngroups++] 318 = grp->gr_gid; 319 if (cr->cr_ngroups == NGROUPS) 320 break; 321 } 322 endgrent(); 323 324 /* 325 * Get the timestamp verifier out of the 326 * authenticator and verifier strings. 327 */ 328 kin.t1 = kverf.t1; 329 kin.t2 = kverf.t2; 330 kin.w2 = kverf.w2; 331 memset((caddr_t)kivec, 0, sizeof (kivec)); 332 memmove((caddr_t)nsd.nsd_key, 333 (caddr_t)kauth.session, 334 sizeof(kauth.session)); 335 336 /* 337 * Decrypt the timestamp verifier in CBC mode. 338 */ 339 XXX 340 341 /* 342 * Validate the timestamp verifier, to 343 * check that the session key is ok. 344 */ 345 nsd.nsd_timestamp.tv_sec = ntohl(kout.t1); 346 nsd.nsd_timestamp.tv_usec = ntohl(kout.t2); 347 nsd.nsd_ttl = ntohl(kout.w1); 348 if ((nsd.nsd_ttl - 1) == ntohl(kout.w2)) 349 nfssvc_flag = NFSSVC_NFSD | NFSSVC_AUTHIN; 350 } 351 #endif /* NFSKERB */ 352 } 353 exit(0); 354 } 355 356 /* If we are serving udp, set up the socket. */ 357 if (udpflag) { 358 if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { 359 syslog(LOG_ERR, "can't create udp socket"); 360 exit(1); 361 } 362 inetaddr.sin_family = AF_INET; 363 inetaddr.sin_addr.s_addr = INADDR_ANY; 364 inetaddr.sin_port = htons(NFS_PORT); 365 inetaddr.sin_len = sizeof(inetaddr); 366 memset(inetaddr.sin_zero, 0, sizeof(inetaddr.sin_zero)); 367 if (bind(sock, 368 (struct sockaddr *)&inetaddr, sizeof(inetaddr)) < 0) { 369 syslog(LOG_ERR, "can't bind udp addr"); 370 exit(1); 371 } 372 if (!pmap_set(RPCPROG_NFS, 2, IPPROTO_UDP, NFS_PORT) || 373 !pmap_set(RPCPROG_NFS, 3, IPPROTO_UDP, NFS_PORT)) { 374 syslog(LOG_ERR, "can't register with udp portmap"); 375 exit(1); 376 } 377 nfsdargs.sock = sock; 378 nfsdargs.name = NULL; 379 nfsdargs.namelen = 0; 380 if (nfssvc(NFSSVC_ADDSOCK, &nfsdargs) < 0) { 381 syslog(LOG_ERR, "can't Add UDP socket"); 382 exit(1); 383 } 384 (void)close(sock); 385 } 386 387 #ifdef ISO 388 /* If we are serving cltp, set up the socket. */ 389 if (cltpflag) { 390 if ((sock = socket(AF_ISO, SOCK_DGRAM, 0)) < 0) { 391 syslog(LOG_ERR, "can't create cltp socket"); 392 exit(1); 393 } 394 memset(&isoaddr, 0, sizeof(isoaddr)); 395 isoaddr.siso_family = AF_ISO; 396 isoaddr.siso_tlen = 2; 397 cp = TSEL(&isoaddr); 398 *cp++ = (NFS_PORT >> 8); 399 *cp = (NFS_PORT & 0xff); 400 isoaddr.siso_len = sizeof(isoaddr); 401 if (bind(sock, 402 (struct sockaddr *)&isoaddr, sizeof(isoaddr)) < 0) { 403 syslog(LOG_ERR, "can't bind cltp addr"); 404 exit(1); 405 } 406 #ifdef notyet 407 /* 408 * XXX 409 * Someday this should probably use "rpcbind", the son of 410 * portmap. 411 */ 412 if (!pmap_set(RPCPROG_NFS, NFS_VER2, IPPROTO_UDP, NFS_PORT)) { 413 syslog(LOG_ERR, "can't register with udp portmap"); 414 exit(1); 415 } 416 #endif /* notyet */ 417 nfsdargs.sock = sock; 418 nfsdargs.name = NULL; 419 nfsdargs.namelen = 0; 420 if (nfssvc(NFSSVC_ADDSOCK, &nfsdargs) < 0) { 421 syslog(LOG_ERR, "can't add UDP socket"); 422 exit(1); 423 } 424 close(sock); 425 } 426 #endif /* ISO */ 427 428 /* Now set up the master server socket waiting for tcp connections. */ 429 on = 1; 430 FD_ZERO(&sockbits); 431 connect_type_cnt = 0; 432 if (tcpflag) { 433 if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0) { 434 syslog(LOG_ERR, "can't create tcp socket"); 435 exit(1); 436 } 437 if (setsockopt(tcpsock, 438 SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) 439 syslog(LOG_ERR, "setsockopt SO_REUSEADDR: %m"); 440 inetaddr.sin_family = AF_INET; 441 inetaddr.sin_addr.s_addr = INADDR_ANY; 442 inetaddr.sin_port = htons(NFS_PORT); 443 inetaddr.sin_len = sizeof(inetaddr); 444 memset(inetaddr.sin_zero, 0, sizeof(inetaddr.sin_zero)); 445 if (bind(tcpsock, 446 (struct sockaddr *)&inetaddr, sizeof (inetaddr)) < 0) { 447 syslog(LOG_ERR, "can't bind tcp addr"); 448 exit(1); 449 } 450 if (listen(tcpsock, 5) < 0) { 451 syslog(LOG_ERR, "listen failed"); 452 exit(1); 453 } 454 if (!pmap_set(RPCPROG_NFS, 2, IPPROTO_TCP, NFS_PORT) || 455 !pmap_set(RPCPROG_NFS, 3, IPPROTO_TCP, NFS_PORT)) { 456 syslog(LOG_ERR, "can't register tcp with portmap"); 457 exit(1); 458 } 459 FD_SET(tcpsock, &sockbits); 460 maxsock = tcpsock; 461 connect_type_cnt++; 462 } 463 464 #ifdef notyet 465 /* Now set up the master server socket waiting for tp4 connections. */ 466 if (tp4flag) { 467 if ((tp4sock = socket(AF_ISO, SOCK_SEQPACKET, 0)) < 0) { 468 syslog(LOG_ERR, "can't create tp4 socket"); 469 exit(1); 470 } 471 if (setsockopt(tp4sock, 472 SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) 473 syslog(LOG_ERR, "setsockopt SO_REUSEADDR: %m"); 474 memset(&isoaddr, 0, sizeof(isoaddr)); 475 isoaddr.siso_family = AF_ISO; 476 isoaddr.siso_tlen = 2; 477 cp = TSEL(&isoaddr); 478 *cp++ = (NFS_PORT >> 8); 479 *cp = (NFS_PORT & 0xff); 480 isoaddr.siso_len = sizeof(isoaddr); 481 if (bind(tp4sock, 482 (struct sockaddr *)&isoaddr, sizeof(isoaddr)) < 0) { 483 syslog(LOG_ERR, "can't bind tp4 addr"); 484 exit(1); 485 } 486 if (listen(tp4sock, 5) < 0) { 487 syslog(LOG_ERR, "listen failed"); 488 exit(1); 489 } 490 /* 491 * XXX 492 * Someday this should probably use "rpcbind", the son of 493 * portmap. 494 */ 495 if (!pmap_set(RPCPROG_NFS, NFS_VER2, IPPROTO_TCP, NFS_PORT)) { 496 syslog(LOG_ERR, "can't register tcp with portmap"); 497 exit(1); 498 } 499 FD_SET(tp4sock, &sockbits); 500 maxsock = tp4sock; 501 connect_type_cnt++; 502 } 503 504 /* Now set up the master server socket waiting for tpip connections. */ 505 if (tpipflag) { 506 if ((tpipsock = socket(AF_INET, SOCK_SEQPACKET, 0)) < 0) { 507 syslog(LOG_ERR, "can't create tpip socket"); 508 exit(1); 509 } 510 if (setsockopt(tpipsock, 511 SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) 512 syslog(LOG_ERR, "setsockopt SO_REUSEADDR: %m"); 513 inetaddr.sin_family = AF_INET; 514 inetaddr.sin_addr.s_addr = INADDR_ANY; 515 inetaddr.sin_port = htons(NFS_PORT); 516 inetaddr.sin_len = sizeof(inetaddr); 517 memset(inetaddr.sin_zero, 0, sizeof(inetaddr.sin_zero)); 518 if (bind(tpipsock, 519 (struct sockaddr *)&inetaddr, sizeof (inetaddr)) < 0) { 520 syslog(LOG_ERR, "can't bind tcp addr"); 521 exit(1); 522 } 523 if (listen(tpipsock, 5) < 0) { 524 syslog(LOG_ERR, "listen failed"); 525 exit(1); 526 } 527 /* 528 * XXX 529 * Someday this should probably use "rpcbind", the son of 530 * portmap. 531 */ 532 if (!pmap_set(RPCPROG_NFS, NFS_VER2, IPPROTO_TCP, NFS_PORT)) { 533 syslog(LOG_ERR, "can't register tcp with portmap"); 534 exit(1); 535 } 536 FD_SET(tpipsock, &sockbits); 537 maxsock = tpipsock; 538 connect_type_cnt++; 539 } 540 #endif /* notyet */ 541 542 if (connect_type_cnt == 0) 543 exit(0); 544 545 setproctitle("master"); 546 547 /* 548 * Loop forever accepting connections and passing the sockets 549 * into the kernel for the mounts. 550 */ 551 for (;;) { 552 ready = sockbits; 553 if (connect_type_cnt > 1) { 554 if (select(maxsock + 1, 555 &ready, NULL, NULL, NULL) < 1) { 556 syslog(LOG_ERR, "select failed: %m"); 557 exit(1); 558 } 559 } 560 if (tcpflag && FD_ISSET(tcpsock, &ready)) { 561 len = sizeof(inetpeer); 562 if ((msgsock = accept(tcpsock, 563 (struct sockaddr *)&inetpeer, &len)) < 0) { 564 syslog(LOG_ERR, "accept failed: %m"); 565 exit(1); 566 } 567 memset(inetpeer.sin_zero, 0, sizeof(inetpeer.sin_zero)); 568 if (setsockopt(msgsock, SOL_SOCKET, 569 SO_KEEPALIVE, (char *)&on, sizeof(on)) < 0) 570 syslog(LOG_ERR, 571 "setsockopt SO_KEEPALIVE: %m"); 572 nfsdargs.sock = msgsock; 573 nfsdargs.name = (caddr_t)&inetpeer; 574 nfsdargs.namelen = sizeof(inetpeer); 575 nfssvc(NFSSVC_ADDSOCK, &nfsdargs); 576 (void)close(msgsock); 577 } 578 #ifdef notyet 579 if (tp4flag && FD_ISSET(tp4sock, &ready)) { 580 len = sizeof(isopeer); 581 if ((msgsock = accept(tp4sock, 582 (struct sockaddr *)&isopeer, &len)) < 0) { 583 syslog(LOG_ERR, "accept failed: %m"); 584 exit(1); 585 } 586 if (setsockopt(msgsock, SOL_SOCKET, 587 SO_KEEPALIVE, (char *)&on, sizeof(on)) < 0) 588 syslog(LOG_ERR, 589 "setsockopt SO_KEEPALIVE: %m"); 590 nfsdargs.sock = msgsock; 591 nfsdargs.name = (caddr_t)&isopeer; 592 nfsdargs.namelen = len; 593 nfssvc(NFSSVC_ADDSOCK, &nfsdargs); 594 (void)close(msgsock); 595 } 596 if (tpipflag && FD_ISSET(tpipsock, &ready)) { 597 len = sizeof(inetpeer); 598 if ((msgsock = accept(tpipsock, 599 (struct sockaddr *)&inetpeer, &len)) < 0) { 600 syslog(LOG_ERR, "Accept failed: %m"); 601 exit(1); 602 } 603 if (setsockopt(msgsock, SOL_SOCKET, 604 SO_KEEPALIVE, (char *)&on, sizeof(on)) < 0) 605 syslog(LOG_ERR, "setsockopt SO_KEEPALIVE: %m"); 606 nfsdargs.sock = msgsock; 607 nfsdargs.name = (caddr_t)&inetpeer; 608 nfsdargs.namelen = len; 609 nfssvc(NFSSVC_ADDSOCK, &nfsdargs); 610 (void)close(msgsock); 611 } 612 #endif /* notyet */ 613 } 614 } 615 616 void 617 usage() 618 { 619 620 (void)fprintf(stderr, "usage: nfsd %s\n", USAGE); 621 exit(1); 622 } 623 624 void 625 nonfs(signo) 626 int signo; 627 { 628 629 syslog(LOG_ERR, "missing system call: NFS not available."); 630 } 631 632 void 633 reapchild(signo) 634 int signo; 635 { 636 637 while (wait3(NULL, WNOHANG, NULL) > 0); 638 } 639
Indexes created Wed Oct 15 16:09:53 GMT 2025