1 /* 2 * Copyright (c) 1989, 1993, 1994 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 * @(#) Copyright (c) 1989, 1993, 1994 The Regents of the University of California. All rights reserved. 37 * @(#)nfsd.c 8.9 (Berkeley) 3/29/95 38 * $FreeBSD: src/sbin/nfsd/nfsd.c,v 1.15.2.1 2000/09/16 22:52:23 brian Exp $ 39 * $DragonFly: src/sbin/nfsd/nfsd.c,v 1.3 2003/08/05 07:45:42 asmodai Exp $ 40 */ 41 42 #include <sys/param.h> 43 #include <sys/syslog.h> 44 #include <sys/wait.h> 45 #include <sys/mount.h> 46 47 #include <rpc/rpc.h> 48 #include <rpc/pmap_clnt.h> 49 50 #include <netdb.h> 51 #include <arpa/inet.h> 52 #ifdef ISO 53 #include <netiso/iso.h> 54 #endif 55 #include <nfs/rpcv2.h> 56 #include <nfs/nfsproto.h> 57 #include <nfs/nfs.h> 58 59 #include <err.h> 60 #include <errno.h> 61 #include <stdio.h> 62 #include <stdlib.h> 63 #include <strings.h> 64 #include <unistd.h> 65 66 /* Global defs */ 67 #ifdef DEBUG 68 #define syslog(e, s) fprintf(stderr,(s)) 69 int debug = 1; 70 #else 71 int debug = 0; 72 #endif 73 74 struct nfsd_srvargs nsd; 75 #ifdef OLD_SETPROCTITLE 76 char **Argv = NULL; /* pointer to argument vector */ 77 char *LastArg = NULL; /* end of argv */ 78 #endif 79 80 #ifdef NFSKERB 81 char lnam[ANAME_SZ]; 82 KTEXT_ST kt; 83 AUTH_DAT kauth; 84 char inst[INST_SZ]; 85 struct nfsrpc_fullblock kin, kout; 86 struct nfsrpc_fullverf kverf; 87 NFSKERBKEY_T kivec; 88 struct timeval ktv; 89 NFSKERBKEYSCHED_T kerb_keysched; 90 #endif 91 92 void nonfs __P((int)); 93 void reapchild __P((int)); 94 void setbindhost __P((struct sockaddr_in *ia, const char *bindhost)); 95 #ifdef OLD_SETPROCTITLE 96 #ifdef __FreeBSD__ 97 void setproctitle __P((char *)); 98 #endif 99 #endif 100 void usage __P((void)); 101 102 /* 103 * Nfs server daemon mostly just a user context for nfssvc() 104 * 105 * 1 - do file descriptor and signal cleanup 106 * 2 - fork the nfsd(s) 107 * 3 - create server socket(s) 108 * 4 - register socket with portmap 109 * 110 * For connectionless protocols, just pass the socket into the kernel via. 111 * nfssvc(). 112 * For connection based sockets, loop doing accepts. When you get a new 113 * socket from accept, pass the msgsock into the kernel via. nfssvc(). 114 * The arguments are: 115 * -c - support iso cltp clients 116 * -r - reregister with portmapper 117 * -t - support tcp nfs clients 118 * -u - support udp nfs clients 119 * followed by "n" which is the number of nfsds' to fork off 120 */ 121 int 122 main(argc, argv, envp) 123 int argc; 124 char *argv[], *envp[]; 125 { 126 struct nfsd_args nfsdargs; 127 struct sockaddr_in inetaddr, inetpeer; 128 #ifdef ISO 129 struct sockaddr_iso isoaddr, isopeer; 130 char *cp; 131 #endif 132 fd_set ready, sockbits; 133 int ch, cltpflag, connect_type_cnt, i, len, maxsock, msgsock; 134 int nfsdcnt, nfssvc_flag, on, reregister, sock, tcpflag, tcpsock; 135 int tp4cnt, tp4flag, tpipcnt, tpipflag, udpflag; 136 int bindhostc = 0, bindanyflag; 137 char **bindhost = NULL; 138 #ifdef notyet 139 int tp4sock, tpipsock; 140 #endif 141 #ifdef NFSKERB 142 struct group *grp; 143 struct passwd *pwd; 144 struct ucred *cr; 145 struct timeval ktv; 146 char **cpp; 147 #endif 148 #ifdef __FreeBSD__ 149 struct vfsconf vfc; 150 int error; 151 152 error = getvfsbyname("nfs", &vfc); 153 if (error && vfsisloadable("nfs")) { 154 if (vfsload("nfs")) 155 err(1, "vfsload(nfs)"); 156 endvfsent(); /* flush cache */ 157 error = getvfsbyname("nfs", &vfc); 158 } 159 if (error) 160 errx(1, "NFS is not available in the running kernel"); 161 #endif 162 163 #ifdef OLD_SETPROCTITLE 164 /* Save start and extent of argv for setproctitle. */ 165 Argv = argv; 166 if (envp == 0 || *envp == 0) 167 envp = argv; 168 while (*envp) 169 envp++; 170 LastArg = envp[-1] + strlen(envp[-1]); 171 #endif 172 173 #define MAXNFSDCNT 20 174 #define DEFNFSDCNT 4 175 nfsdcnt = DEFNFSDCNT; 176 cltpflag = reregister = tcpflag = tp4cnt = tp4flag = tpipcnt = 0; 177 bindanyflag = tpipflag = udpflag = 0; 178 #ifdef ISO 179 #define GETOPT "ach:n:rtu" 180 #define USAGE "[-acrtu] [-n num_servers] [-h bindip]" 181 #else 182 #define GETOPT "ah:n:rtu" 183 #define USAGE "[-artu] [-n num_servers] [-h bindip]" 184 #endif 185 while ((ch = getopt(argc, argv, GETOPT)) != -1) 186 switch (ch) { 187 case 'a': 188 bindanyflag = 1; 189 break; 190 case 'n': 191 nfsdcnt = atoi(optarg); 192 if (nfsdcnt < 1 || nfsdcnt > MAXNFSDCNT) { 193 warnx("nfsd count %d; reset to %d", nfsdcnt, 194 DEFNFSDCNT); 195 nfsdcnt = DEFNFSDCNT; 196 } 197 break; 198 case 'h': 199 bindhostc++; 200 bindhost = realloc(bindhost,sizeof(char *)*bindhostc); 201 if (bindhost == NULL) 202 errx(1, "Out of memory"); 203 bindhost[bindhostc-1] = strdup(optarg); 204 if (bindhost[bindhostc-1] == NULL) 205 errx(1, "Out of memory"); 206 break; 207 case 'r': 208 reregister = 1; 209 break; 210 case 't': 211 tcpflag = 1; 212 break; 213 case 'u': 214 udpflag = 1; 215 break; 216 #ifdef ISO 217 case 'c': 218 cltpflag = 1; 219 break; 220 #ifdef notyet 221 case 'i': 222 tp4cnt = 1; 223 break; 224 case 'p': 225 tpipcnt = 1; 226 break; 227 #endif /* notyet */ 228 #endif /* ISO */ 229 default: 230 case '?': 231 usage(); 232 }; 233 if (!tcpflag && !udpflag) 234 udpflag = 1; 235 argv += optind; 236 argc -= optind; 237 238 /* 239 * XXX 240 * Backward compatibility, trailing number is the count of daemons. 241 */ 242 if (argc > 1) 243 usage(); 244 if (argc == 1) { 245 nfsdcnt = atoi(argv[0]); 246 if (nfsdcnt < 1 || nfsdcnt > MAXNFSDCNT) { 247 warnx("nfsd count %d; reset to %d", nfsdcnt, 248 DEFNFSDCNT); 249 nfsdcnt = DEFNFSDCNT; 250 } 251 } 252 253 if (bindhostc == 0 || bindanyflag) { 254 bindhostc++; 255 bindhost = realloc(bindhost,sizeof(char *)*bindhostc); 256 if (bindhost == NULL) 257 errx(1, "Out of memory"); 258 bindhost[bindhostc-1] = strdup("*"); 259 if (bindhost[bindhostc-1] == NULL) 260 errx(1, "Out of memory"); 261 } 262 263 if (debug == 0) { 264 daemon(0, 0); 265 (void)signal(SIGHUP, SIG_IGN); 266 (void)signal(SIGINT, SIG_IGN); 267 (void)signal(SIGQUIT, SIG_IGN); 268 (void)signal(SIGSYS, nonfs); 269 (void)signal(SIGTERM, SIG_IGN); 270 } 271 (void)signal(SIGCHLD, reapchild); 272 273 if (reregister) { 274 if (udpflag && 275 (!pmap_set(RPCPROG_NFS, 2, IPPROTO_UDP, NFS_PORT) || 276 !pmap_set(RPCPROG_NFS, 3, IPPROTO_UDP, NFS_PORT))) 277 err(1, "can't register with portmap for UDP"); 278 if (tcpflag && 279 (!pmap_set(RPCPROG_NFS, 2, IPPROTO_TCP, NFS_PORT) || 280 !pmap_set(RPCPROG_NFS, 3, IPPROTO_TCP, NFS_PORT))) 281 err(1, "can't register with portmap for TCP"); 282 exit(0); 283 } 284 openlog("nfsd:", LOG_PID, LOG_DAEMON); 285 286 for (i = 0; i < nfsdcnt; i++) { 287 switch (fork()) { 288 case -1: 289 syslog(LOG_ERR, "fork: %m"); 290 exit (1); 291 case 0: 292 break; 293 default: 294 continue; 295 } 296 297 setproctitle("server"); 298 nfssvc_flag = NFSSVC_NFSD; 299 nsd.nsd_nfsd = NULL; 300 #ifdef NFSKERB 301 if (sizeof (struct nfsrpc_fullverf) != RPCX_FULLVERF || 302 sizeof (struct nfsrpc_fullblock) != RPCX_FULLBLOCK) 303 syslog(LOG_ERR, "Yikes NFSKERB structs not packed!"); 304 nsd.nsd_authstr = (u_char *)&kt; 305 nsd.nsd_authlen = sizeof (kt); 306 nsd.nsd_verfstr = (u_char *)&kverf; 307 nsd.nsd_verflen = sizeof (kverf); 308 #endif 309 while (nfssvc(nfssvc_flag, &nsd) < 0) { 310 if (errno != ENEEDAUTH) { 311 syslog(LOG_ERR, "nfssvc: %m"); 312 exit(1); 313 } 314 nfssvc_flag = NFSSVC_NFSD | NFSSVC_AUTHINFAIL; 315 #ifdef NFSKERB 316 /* 317 * Get the Kerberos ticket out of the authenticator 318 * verify it and convert the principal name to a user 319 * name. The user name is then converted to a set of 320 * user credentials via the password and group file. 321 * Finally, decrypt the timestamp and validate it. 322 * For more info see the IETF Draft "Authentication 323 * in ONC RPC". 324 */ 325 kt.length = ntohl(kt.length); 326 if (gettimeofday(&ktv, (struct timezone *)0) == 0 && 327 kt.length > 0 && kt.length <= 328 (RPCAUTH_MAXSIZ - 3 * NFSX_UNSIGNED)) { 329 kin.w1 = NFS_KERBW1(kt); 330 kt.mbz = 0; 331 (void)strcpy(inst, "*"); 332 if (krb_rd_req(&kt, NFS_KERBSRV, 333 inst, nsd.nsd_haddr, &kauth, "") == RD_AP_OK && 334 krb_kntoln(&kauth, lnam) == KSUCCESS && 335 (pwd = getpwnam(lnam)) != NULL) { 336 cr = &nsd.nsd_cr; 337 cr->cr_uid = pwd->pw_uid; 338 cr->cr_groups[0] = pwd->pw_gid; 339 cr->cr_ngroups = 1; 340 setgrent(); 341 while ((grp = getgrent()) != NULL) { 342 if (grp->gr_gid == cr->cr_groups[0]) 343 continue; 344 for (cpp = grp->gr_mem; 345 *cpp != NULL; ++cpp) 346 if (!strcmp(*cpp, lnam)) 347 break; 348 if (*cpp == NULL) 349 continue; 350 cr->cr_groups[cr->cr_ngroups++] 351 = grp->gr_gid; 352 if (cr->cr_ngroups == NGROUPS) 353 break; 354 } 355 endgrent(); 356 357 /* 358 * Get the timestamp verifier out of the 359 * authenticator and verifier strings. 360 */ 361 kin.t1 = kverf.t1; 362 kin.t2 = kverf.t2; 363 kin.w2 = kverf.w2; 364 bzero((caddr_t)kivec, sizeof (kivec)); 365 bcopy((caddr_t)kauth.session, 366 (caddr_t)nsd.nsd_key,sizeof(kauth.session)); 367 368 /* 369 * Decrypt the timestamp verifier in CBC mode. 370 */ 371 XXX 372 373 /* 374 * Validate the timestamp verifier, to 375 * check that the session key is ok. 376 */ 377 nsd.nsd_timestamp.tv_sec = ntohl(kout.t1); 378 nsd.nsd_timestamp.tv_usec = ntohl(kout.t2); 379 nsd.nsd_ttl = ntohl(kout.w1); 380 if ((nsd.nsd_ttl - 1) == ntohl(kout.w2)) 381 nfssvc_flag = NFSSVC_NFSD | NFSSVC_AUTHIN; 382 } 383 #endif /* NFSKERB */ 384 } 385 exit(0); 386 } 387 388 /* If we are serving udp, set up the socket. */ 389 for (i = 0; udpflag && i < bindhostc; i++) { 390 if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { 391 syslog(LOG_ERR, "can't create udp socket"); 392 exit(1); 393 } 394 setbindhost(&inetaddr, bindhost[i]); 395 if (bind(sock, 396 (struct sockaddr *)&inetaddr, sizeof(inetaddr)) < 0) { 397 syslog(LOG_ERR, "can't bind udp addr %s: %m", bindhost[i]); 398 exit(1); 399 } 400 if (!pmap_set(RPCPROG_NFS, 2, IPPROTO_UDP, NFS_PORT) || 401 !pmap_set(RPCPROG_NFS, 3, IPPROTO_UDP, NFS_PORT)) { 402 syslog(LOG_ERR, "can't register with udp portmap"); 403 exit(1); 404 } 405 nfsdargs.sock = sock; 406 nfsdargs.name = NULL; 407 nfsdargs.namelen = 0; 408 if (nfssvc(NFSSVC_ADDSOCK, &nfsdargs) < 0) { 409 syslog(LOG_ERR, "can't Add UDP socket"); 410 exit(1); 411 } 412 (void)close(sock); 413 } 414 415 #ifdef ISO 416 /* If we are serving cltp, set up the socket. */ 417 if (cltpflag) { 418 if ((sock = socket(AF_ISO, SOCK_DGRAM, 0)) < 0) { 419 syslog(LOG_ERR, "can't create cltp socket"); 420 exit(1); 421 } 422 memset(&isoaddr, 0, sizeof(isoaddr)); 423 isoaddr.siso_family = AF_ISO; 424 isoaddr.siso_tlen = 2; 425 cp = TSEL(&isoaddr); 426 *cp++ = (NFS_PORT >> 8); 427 *cp = (NFS_PORT & 0xff); 428 isoaddr.siso_len = sizeof(isoaddr); 429 if (bind(sock, 430 (struct sockaddr *)&isoaddr, sizeof(isoaddr)) < 0) { 431 syslog(LOG_ERR, "can't bind cltp addr"); 432 exit(1); 433 } 434 #ifdef notyet 435 /* 436 * XXX 437 * Someday this should probably use "rpcbind", the son of 438 * portmap. 439 */ 440 if (!pmap_set(RPCPROG_NFS, NFS_VER2, IPPROTO_UDP, NFS_PORT)) { 441 syslog(LOG_ERR, "can't register with udp portmap"); 442 exit(1); 443 } 444 #endif /* notyet */ 445 nfsdargs.sock = sock; 446 nfsdargs.name = NULL; 447 nfsdargs.namelen = 0; 448 if (nfssvc(NFSSVC_ADDSOCK, &nfsdargs) < 0) { 449 syslog(LOG_ERR, "can't add UDP socket"); 450 exit(1); 451 } 452 close(sock); 453 } 454 #endif /* ISO */ 455 456 /* Now set up the master server socket waiting for tcp connections. */ 457 on = 1; 458 FD_ZERO(&sockbits); 459 connect_type_cnt = 0; 460 for (i = 0; tcpflag && i < bindhostc; i++) { 461 if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0) { 462 syslog(LOG_ERR, "can't create tcp socket"); 463 exit(1); 464 } 465 if (setsockopt(tcpsock, 466 SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) 467 syslog(LOG_ERR, "setsockopt SO_REUSEADDR: %m"); 468 setbindhost(&inetaddr, bindhost[i]); 469 if (bind(tcpsock, 470 (struct sockaddr *)&inetaddr, sizeof (inetaddr)) < 0) { 471 syslog(LOG_ERR, "can't bind tcp addr %s: %m", bindhost[i]); 472 exit(1); 473 } 474 if (listen(tcpsock, 5) < 0) { 475 syslog(LOG_ERR, "listen failed"); 476 exit(1); 477 } 478 if (!pmap_set(RPCPROG_NFS, 2, IPPROTO_TCP, NFS_PORT) || 479 !pmap_set(RPCPROG_NFS, 3, IPPROTO_TCP, NFS_PORT)) { 480 syslog(LOG_ERR, "can't register tcp with portmap"); 481 exit(1); 482 } 483 FD_SET(tcpsock, &sockbits); 484 maxsock = tcpsock; 485 connect_type_cnt++; 486 } 487 488 #ifdef notyet 489 /* Now set up the master server socket waiting for tp4 connections. */ 490 if (tp4flag) { 491 if ((tp4sock = socket(AF_ISO, SOCK_SEQPACKET, 0)) < 0) { 492 syslog(LOG_ERR, "can't create tp4 socket"); 493 exit(1); 494 } 495 if (setsockopt(tp4sock, 496 SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) 497 syslog(LOG_ERR, "setsockopt SO_REUSEADDR: %m"); 498 memset(&isoaddr, 0, sizeof(isoaddr)); 499 isoaddr.siso_family = AF_ISO; 500 isoaddr.siso_tlen = 2; 501 cp = TSEL(&isoaddr); 502 *cp++ = (NFS_PORT >> 8); 503 *cp = (NFS_PORT & 0xff); 504 isoaddr.siso_len = sizeof(isoaddr); 505 if (bind(tp4sock, 506 (struct sockaddr *)&isoaddr, sizeof (isoaddr)) < 0) { 507 syslog(LOG_ERR, "can't bind tp4 addr"); 508 exit(1); 509 } 510 if (listen(tp4sock, 5) < 0) { 511 syslog(LOG_ERR, "listen failed"); 512 exit(1); 513 } 514 /* 515 * XXX 516 * Someday this should probably use "rpcbind", the son of 517 * portmap. 518 */ 519 if (!pmap_set(RPCPROG_NFS, NFS_VER2, IPPROTO_TCP, NFS_PORT)) { 520 syslog(LOG_ERR, "can't register tcp with portmap"); 521 exit(1); 522 } 523 FD_SET(tp4sock, &sockbits); 524 maxsock = tp4sock; 525 connect_type_cnt++; 526 } 527 528 /* Now set up the master server socket waiting for tpip connections. */ 529 for (i = 0; tpipflag && i < bindhostc; i++) { 530 if ((tpipsock = socket(AF_INET, SOCK_SEQPACKET, 0)) < 0) { 531 syslog(LOG_ERR, "can't create tpip socket"); 532 exit(1); 533 } 534 if (setsockopt(tpipsock, 535 SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) 536 syslog(LOG_ERR, "setsockopt SO_REUSEADDR: %m"); 537 setbindhost(&inetaddr, bindhost[i]); 538 if (bind(tpipsock, 539 (struct sockaddr *)&inetaddr, sizeof (inetaddr)) < 0) { 540 syslog(LOG_ERR, "can't bind tcp addr %s: %m", bindhost[i]); 541 exit(1); 542 } 543 if (listen(tpipsock, 5) < 0) { 544 syslog(LOG_ERR, "listen failed"); 545 exit(1); 546 } 547 /* 548 * XXX 549 * Someday this should probably use "rpcbind", the son of 550 * portmap. 551 */ 552 if (!pmap_set(RPCPROG_NFS, NFS_VER2, IPPROTO_TCP, NFS_PORT)) { 553 syslog(LOG_ERR, "can't register tcp with portmap"); 554 exit(1); 555 } 556 FD_SET(tpipsock, &sockbits); 557 maxsock = tpipsock; 558 connect_type_cnt++; 559 } 560 #endif /* notyet */ 561 562 if (connect_type_cnt == 0) 563 exit(0); 564 565 setproctitle("master"); 566 567 /* 568 * Loop forever accepting connections and passing the sockets 569 * into the kernel for the mounts. 570 */ 571 for (;;) { 572 ready = sockbits; 573 if (connect_type_cnt > 1) { 574 if (select(maxsock + 1, 575 &ready, NULL, NULL, NULL) < 1) { 576 syslog(LOG_ERR, "select failed: %m"); 577 exit(1); 578 } 579 } 580 if (tcpflag && FD_ISSET(tcpsock, &ready)) { 581 len = sizeof(inetpeer); 582 if ((msgsock = accept(tcpsock, 583 (struct sockaddr *)&inetpeer, &len)) < 0) { 584 syslog(LOG_ERR, "accept failed: %m"); 585 exit(1); 586 } 587 memset(inetpeer.sin_zero, 0, sizeof(inetpeer.sin_zero)); 588 if (setsockopt(msgsock, SOL_SOCKET, 589 SO_KEEPALIVE, (char *)&on, sizeof(on)) < 0) 590 syslog(LOG_ERR, 591 "setsockopt SO_KEEPALIVE: %m"); 592 nfsdargs.sock = msgsock; 593 nfsdargs.name = (caddr_t)&inetpeer; 594 nfsdargs.namelen = sizeof(inetpeer); 595 nfssvc(NFSSVC_ADDSOCK, &nfsdargs); 596 (void)close(msgsock); 597 } 598 #ifdef notyet 599 if (tp4flag && FD_ISSET(tp4sock, &ready)) { 600 len = sizeof(isopeer); 601 if ((msgsock = accept(tp4sock, 602 (struct sockaddr *)&isopeer, &len)) < 0) { 603 syslog(LOG_ERR, "accept failed: %m"); 604 exit(1); 605 } 606 if (setsockopt(msgsock, SOL_SOCKET, 607 SO_KEEPALIVE, (char *)&on, sizeof(on)) < 0) 608 syslog(LOG_ERR, 609 "setsockopt SO_KEEPALIVE: %m"); 610 nfsdargs.sock = msgsock; 611 nfsdargs.name = (caddr_t)&isopeer; 612 nfsdargs.namelen = len; 613 nfssvc(NFSSVC_ADDSOCK, &nfsdargs); 614 (void)close(msgsock); 615 } 616 if (tpipflag && FD_ISSET(tpipsock, &ready)) { 617 len = sizeof(inetpeer); 618 if ((msgsock = accept(tpipsock, 619 (struct sockaddr *)&inetpeer, &len)) < 0) { 620 syslog(LOG_ERR, "accept failed: %m"); 621 exit(1); 622 } 623 if (setsockopt(msgsock, SOL_SOCKET, 624 SO_KEEPALIVE, (char *)&on, sizeof(on)) < 0) 625 syslog(LOG_ERR, "setsockopt SO_KEEPALIVE: %m"); 626 nfsdargs.sock = msgsock; 627 nfsdargs.name = (caddr_t)&inetpeer; 628 nfsdargs.namelen = len; 629 nfssvc(NFSSVC_ADDSOCK, &nfsdargs); 630 (void)close(msgsock); 631 } 632 #endif /* notyet */ 633 } 634 } 635 636 void 637 setbindhost(struct sockaddr_in *ia, const char *bindhost) 638 { 639 ia->sin_family = AF_INET; 640 ia->sin_port = htons(NFS_PORT); 641 ia->sin_len = sizeof(*ia); 642 if (bindhost == NULL || strcmp(bindhost,"*") == 0) { 643 ia->sin_addr.s_addr = INADDR_ANY; 644 } else { 645 if (inet_aton(bindhost, &ia->sin_addr) == 0) { 646 struct hostent *he; 647 648 he = gethostbyname2(bindhost, ia->sin_family); 649 if (he == NULL) { 650 syslog(LOG_ERR, "gethostbyname of %s failed", bindhost); 651 exit(1); 652 } 653 bcopy(he->h_addr, &ia->sin_addr, he->h_length); 654 } 655 } 656 } 657 658 void 659 usage() 660 { 661 (void)fprintf(stderr, "usage: nfsd %s\n", USAGE); 662 exit(1); 663 } 664 665 void 666 nonfs(signo) 667 int signo; 668 { 669 syslog(LOG_ERR, "missing system call: NFS not available"); 670 } 671 672 void 673 reapchild(signo) 674 int signo; 675 { 676 677 while (wait3(NULL, WNOHANG, NULL) > 0); 678 } 679 680 #ifdef OLD_SETPROCTITLE 681 #ifdef __FreeBSD__ 682 void 683 setproctitle(a) 684 char *a; 685 { 686 register char *cp; 687 char buf[80]; 688 689 cp = Argv[0]; 690 (void)snprintf(buf, sizeof(buf), "nfsd-%s", a); 691 (void)strncpy(cp, buf, LastArg - cp); 692 cp += strlen(cp); 693 while (cp < LastArg) 694 *cp++ = '\0'; 695 Argv[1] = NULL; 696 } 697 #endif /* __FreeBSD__ */ 698 #endif 699