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