GC !__DragonFly__ section.
[dragonfly.git] / sbin / nfsd / nfsd.c
CommitLineData
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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.
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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 $
7cee7052 39 * $DragonFly: src/sbin/nfsd/nfsd.c,v 1.7 2004/12/18 21:43:39 swildner Exp $
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40 */
41
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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
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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))
69int debug = 1;
70#else
71int debug = 0;
72#endif
73
74struct nfsd_srvargs nsd;
75#ifdef OLD_SETPROCTITLE
76char **Argv = NULL; /* pointer to argument vector */
77char *LastArg = NULL; /* end of argv */
78#endif
79
80#ifdef NFSKERB
81char lnam[ANAME_SZ];
82KTEXT_ST kt;
83AUTH_DAT kauth;
84char inst[INST_SZ];
85struct nfsrpc_fullblock kin, kout;
86struct nfsrpc_fullverf kverf;
87NFSKERBKEY_T kivec;
88struct timeval ktv;
89NFSKERBKEYSCHED_T kerb_keysched;
90#endif
91
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92void nonfs(int);
93void reapchild(int);
94void setbindhost(struct sockaddr_in *ia, const char *bindhost);
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95#ifdef OLD_SETPROCTITLE
96#ifdef __FreeBSD__
9a76cd75 97void setproctitle(char *);
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98#endif
99#endif
9a76cd75 100void usage(void);
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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 */
121int
b5744197 122main(int argc, char **argv, char **envp)
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123{
124 struct nfsd_args nfsdargs;
125 struct sockaddr_in inetaddr, inetpeer;
126#ifdef ISO
127 struct sockaddr_iso isoaddr, isopeer;
128 char *cp;
129#endif
130 fd_set ready, sockbits;
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131 int ch, cltpflag, connect_type_cnt, i, len, maxsock = -1, msgsock;
132 int nfsdcnt, nfssvc_flag, on, reregister, sock, tcpflag, tcpsock = -1;
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133 int tp4cnt, tp4flag, tpipcnt, tpipflag, udpflag;
134 int bindhostc = 0, bindanyflag;
135 char **bindhost = NULL;
136#ifdef notyet
137 int tp4sock, tpipsock;
138#endif
139#ifdef NFSKERB
140 struct group *grp;
141 struct passwd *pwd;
142 struct ucred *cr;
143 struct timeval ktv;
144 char **cpp;
145#endif
146#ifdef __FreeBSD__
147 struct vfsconf vfc;
148 int error;
149
150 error = getvfsbyname("nfs", &vfc);
151 if (error && vfsisloadable("nfs")) {
152 if (vfsload("nfs"))
153 err(1, "vfsload(nfs)");
154 endvfsent(); /* flush cache */
155 error = getvfsbyname("nfs", &vfc);
156 }
157 if (error)
158 errx(1, "NFS is not available in the running kernel");
159#endif
160
161#ifdef OLD_SETPROCTITLE
162 /* Save start and extent of argv for setproctitle. */
163 Argv = argv;
164 if (envp == 0 || *envp == 0)
165 envp = argv;
166 while (*envp)
167 envp++;
168 LastArg = envp[-1] + strlen(envp[-1]);
169#endif
170
171#define MAXNFSDCNT 20
172#define DEFNFSDCNT 4
173 nfsdcnt = DEFNFSDCNT;
174 cltpflag = reregister = tcpflag = tp4cnt = tp4flag = tpipcnt = 0;
175 bindanyflag = tpipflag = udpflag = 0;
176#ifdef ISO
177#define GETOPT "ach:n:rtu"
178#define USAGE "[-acrtu] [-n num_servers] [-h bindip]"
179#else
180#define GETOPT "ah:n:rtu"
181#define USAGE "[-artu] [-n num_servers] [-h bindip]"
182#endif
183 while ((ch = getopt(argc, argv, GETOPT)) != -1)
184 switch (ch) {
185 case 'a':
186 bindanyflag = 1;
187 break;
188 case 'n':
189 nfsdcnt = atoi(optarg);
190 if (nfsdcnt < 1 || nfsdcnt > MAXNFSDCNT) {
191 warnx("nfsd count %d; reset to %d", nfsdcnt,
192 DEFNFSDCNT);
193 nfsdcnt = DEFNFSDCNT;
194 }
195 break;
196 case 'h':
197 bindhostc++;
198 bindhost = realloc(bindhost,sizeof(char *)*bindhostc);
199 if (bindhost == NULL)
200 errx(1, "Out of memory");
201 bindhost[bindhostc-1] = strdup(optarg);
202 if (bindhost[bindhostc-1] == NULL)
203 errx(1, "Out of memory");
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 (bindhostc == 0 || bindanyflag) {
252 bindhostc++;
253 bindhost = realloc(bindhost,sizeof(char *)*bindhostc);
254 if (bindhost == NULL)
255 errx(1, "Out of memory");
256 bindhost[bindhostc-1] = strdup("*");
257 if (bindhost[bindhostc-1] == NULL)
258 errx(1, "Out of memory");
259 }
260
261 if (debug == 0) {
262 daemon(0, 0);
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263 signal(SIGHUP, SIG_IGN);
264 signal(SIGINT, SIG_IGN);
265 signal(SIGQUIT, SIG_IGN);
266 signal(SIGSYS, nonfs);
267 signal(SIGTERM, SIG_IGN);
984263bc 268 }
7cee7052 269 signal(SIGCHLD, reapchild);
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270
271 if (reregister) {
272 if (udpflag &&
273 (!pmap_set(RPCPROG_NFS, 2, IPPROTO_UDP, NFS_PORT) ||
274 !pmap_set(RPCPROG_NFS, 3, IPPROTO_UDP, NFS_PORT)))
275 err(1, "can't register with portmap for UDP");
276 if (tcpflag &&
277 (!pmap_set(RPCPROG_NFS, 2, IPPROTO_TCP, NFS_PORT) ||
278 !pmap_set(RPCPROG_NFS, 3, IPPROTO_TCP, NFS_PORT)))
279 err(1, "can't register with portmap for TCP");
280 exit(0);
281 }
282 openlog("nfsd:", LOG_PID, LOG_DAEMON);
283
284 for (i = 0; i < nfsdcnt; i++) {
285 switch (fork()) {
286 case -1:
287 syslog(LOG_ERR, "fork: %m");
288 exit (1);
289 case 0:
290 break;
291 default:
292 continue;
293 }
294
295 setproctitle("server");
296 nfssvc_flag = NFSSVC_NFSD;
297 nsd.nsd_nfsd = NULL;
298#ifdef NFSKERB
299 if (sizeof (struct nfsrpc_fullverf) != RPCX_FULLVERF ||
300 sizeof (struct nfsrpc_fullblock) != RPCX_FULLBLOCK)
301 syslog(LOG_ERR, "Yikes NFSKERB structs not packed!");
302 nsd.nsd_authstr = (u_char *)&kt;
303 nsd.nsd_authlen = sizeof (kt);
304 nsd.nsd_verfstr = (u_char *)&kverf;
305 nsd.nsd_verflen = sizeof (kverf);
306#endif
307 while (nfssvc(nfssvc_flag, &nsd) < 0) {
308 if (errno != ENEEDAUTH) {
309 syslog(LOG_ERR, "nfssvc: %m");
310 exit(1);
311 }
312 nfssvc_flag = NFSSVC_NFSD | NFSSVC_AUTHINFAIL;
313#ifdef NFSKERB
314 /*
315 * Get the Kerberos ticket out of the authenticator
316 * verify it and convert the principal name to a user
317 * name. The user name is then converted to a set of
318 * user credentials via the password and group file.
319 * Finally, decrypt the timestamp and validate it.
320 * For more info see the IETF Draft "Authentication
321 * in ONC RPC".
322 */
323 kt.length = ntohl(kt.length);
324 if (gettimeofday(&ktv, (struct timezone *)0) == 0 &&
325 kt.length > 0 && kt.length <=
326 (RPCAUTH_MAXSIZ - 3 * NFSX_UNSIGNED)) {
327 kin.w1 = NFS_KERBW1(kt);
328 kt.mbz = 0;
7cee7052 329 strcpy(inst, "*");
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330 if (krb_rd_req(&kt, NFS_KERBSRV,
331 inst, nsd.nsd_haddr, &kauth, "") == RD_AP_OK &&
332 krb_kntoln(&kauth, lnam) == KSUCCESS &&
333 (pwd = getpwnam(lnam)) != NULL) {
334 cr = &nsd.nsd_cr;
335 cr->cr_uid = pwd->pw_uid;
336 cr->cr_groups[0] = pwd->pw_gid;
337 cr->cr_ngroups = 1;
338 setgrent();
339 while ((grp = getgrent()) != NULL) {
340 if (grp->gr_gid == cr->cr_groups[0])
341 continue;
342 for (cpp = grp->gr_mem;
343 *cpp != NULL; ++cpp)
344 if (!strcmp(*cpp, lnam))
345 break;
346 if (*cpp == NULL)
347 continue;
348 cr->cr_groups[cr->cr_ngroups++]
349 = grp->gr_gid;
350 if (cr->cr_ngroups == NGROUPS)
351 break;
352 }
353 endgrent();
354
355 /*
356 * Get the timestamp verifier out of the
357 * authenticator and verifier strings.
358 */
359 kin.t1 = kverf.t1;
360 kin.t2 = kverf.t2;
361 kin.w2 = kverf.w2;
362 bzero((caddr_t)kivec, sizeof (kivec));
363 bcopy((caddr_t)kauth.session,
364 (caddr_t)nsd.nsd_key,sizeof(kauth.session));
365
366 /*
367 * Decrypt the timestamp verifier in CBC mode.
368 */
369 XXX
370
371 /*
372 * Validate the timestamp verifier, to
373 * check that the session key is ok.
374 */
375 nsd.nsd_timestamp.tv_sec = ntohl(kout.t1);
376 nsd.nsd_timestamp.tv_usec = ntohl(kout.t2);
377 nsd.nsd_ttl = ntohl(kout.w1);
378 if ((nsd.nsd_ttl - 1) == ntohl(kout.w2))
379 nfssvc_flag = NFSSVC_NFSD | NFSSVC_AUTHIN;
380 }
381#endif /* NFSKERB */
382 }
383 exit(0);
384 }
385
386 /* If we are serving udp, set up the socket. */
387 for (i = 0; udpflag && i < bindhostc; i++) {
388 if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
389 syslog(LOG_ERR, "can't create udp socket");
390 exit(1);
391 }
392 setbindhost(&inetaddr, bindhost[i]);
393 if (bind(sock,
394 (struct sockaddr *)&inetaddr, sizeof(inetaddr)) < 0) {
395 syslog(LOG_ERR, "can't bind udp addr %s: %m", bindhost[i]);
396 exit(1);
397 }
398 if (!pmap_set(RPCPROG_NFS, 2, IPPROTO_UDP, NFS_PORT) ||
399 !pmap_set(RPCPROG_NFS, 3, IPPROTO_UDP, NFS_PORT)) {
400 syslog(LOG_ERR, "can't register with udp portmap");
401 exit(1);
402 }
403 nfsdargs.sock = sock;
404 nfsdargs.name = NULL;
405 nfsdargs.namelen = 0;
406 if (nfssvc(NFSSVC_ADDSOCK, &nfsdargs) < 0) {
407 syslog(LOG_ERR, "can't Add UDP socket");
408 exit(1);
409 }
7cee7052 410 close(sock);
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411 }
412
413#ifdef ISO
414 /* If we are serving cltp, set up the socket. */
415 if (cltpflag) {
416 if ((sock = socket(AF_ISO, SOCK_DGRAM, 0)) < 0) {
417 syslog(LOG_ERR, "can't create cltp socket");
418 exit(1);
419 }
420 memset(&isoaddr, 0, sizeof(isoaddr));
421 isoaddr.siso_family = AF_ISO;
422 isoaddr.siso_tlen = 2;
423 cp = TSEL(&isoaddr);
424 *cp++ = (NFS_PORT >> 8);
425 *cp = (NFS_PORT & 0xff);
426 isoaddr.siso_len = sizeof(isoaddr);
427 if (bind(sock,
428 (struct sockaddr *)&isoaddr, sizeof(isoaddr)) < 0) {
429 syslog(LOG_ERR, "can't bind cltp addr");
430 exit(1);
431 }
432#ifdef notyet
433 /*
434 * XXX
435 * Someday this should probably use "rpcbind", the son of
436 * portmap.
437 */
438 if (!pmap_set(RPCPROG_NFS, NFS_VER2, IPPROTO_UDP, NFS_PORT)) {
439 syslog(LOG_ERR, "can't register with udp portmap");
440 exit(1);
441 }
442#endif /* notyet */
443 nfsdargs.sock = sock;
444 nfsdargs.name = NULL;
445 nfsdargs.namelen = 0;
446 if (nfssvc(NFSSVC_ADDSOCK, &nfsdargs) < 0) {
447 syslog(LOG_ERR, "can't add UDP socket");
448 exit(1);
449 }
450 close(sock);
451 }
452#endif /* ISO */
453
454 /* Now set up the master server socket waiting for tcp connections. */
455 on = 1;
456 FD_ZERO(&sockbits);
457 connect_type_cnt = 0;
458 for (i = 0; tcpflag && i < bindhostc; i++) {
459 if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
460 syslog(LOG_ERR, "can't create tcp socket");
461 exit(1);
462 }
463 if (setsockopt(tcpsock,
464 SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0)
465 syslog(LOG_ERR, "setsockopt SO_REUSEADDR: %m");
466 setbindhost(&inetaddr, bindhost[i]);
467 if (bind(tcpsock,
468 (struct sockaddr *)&inetaddr, sizeof (inetaddr)) < 0) {
469 syslog(LOG_ERR, "can't bind tcp addr %s: %m", bindhost[i]);
470 exit(1);
471 }
472 if (listen(tcpsock, 5) < 0) {
473 syslog(LOG_ERR, "listen failed");
474 exit(1);
475 }
476 if (!pmap_set(RPCPROG_NFS, 2, IPPROTO_TCP, NFS_PORT) ||
477 !pmap_set(RPCPROG_NFS, 3, IPPROTO_TCP, NFS_PORT)) {
478 syslog(LOG_ERR, "can't register tcp with portmap");
479 exit(1);
480 }
481 FD_SET(tcpsock, &sockbits);
482 maxsock = tcpsock;
483 connect_type_cnt++;
484 }
485
486#ifdef notyet
487 /* Now set up the master server socket waiting for tp4 connections. */
488 if (tp4flag) {
489 if ((tp4sock = socket(AF_ISO, SOCK_SEQPACKET, 0)) < 0) {
490 syslog(LOG_ERR, "can't create tp4 socket");
491 exit(1);
492 }
493 if (setsockopt(tp4sock,
494 SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0)
495 syslog(LOG_ERR, "setsockopt SO_REUSEADDR: %m");
496 memset(&isoaddr, 0, sizeof(isoaddr));
497 isoaddr.siso_family = AF_ISO;
498 isoaddr.siso_tlen = 2;
499 cp = TSEL(&isoaddr);
500 *cp++ = (NFS_PORT >> 8);
501 *cp = (NFS_PORT & 0xff);
502 isoaddr.siso_len = sizeof(isoaddr);
503 if (bind(tp4sock,
504 (struct sockaddr *)&isoaddr, sizeof (isoaddr)) < 0) {
505 syslog(LOG_ERR, "can't bind tp4 addr");
506 exit(1);
507 }
508 if (listen(tp4sock, 5) < 0) {
509 syslog(LOG_ERR, "listen failed");
510 exit(1);
511 }
512 /*
513 * XXX
514 * Someday this should probably use "rpcbind", the son of
515 * portmap.
516 */
517 if (!pmap_set(RPCPROG_NFS, NFS_VER2, IPPROTO_TCP, NFS_PORT)) {
518 syslog(LOG_ERR, "can't register tcp with portmap");
519 exit(1);
520 }
521 FD_SET(tp4sock, &sockbits);
522 maxsock = tp4sock;
523 connect_type_cnt++;
524 }
525
526 /* Now set up the master server socket waiting for tpip connections. */
527 for (i = 0; tpipflag && i < bindhostc; i++) {
528 if ((tpipsock = socket(AF_INET, SOCK_SEQPACKET, 0)) < 0) {
529 syslog(LOG_ERR, "can't create tpip socket");
530 exit(1);
531 }
532 if (setsockopt(tpipsock,
533 SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0)
534 syslog(LOG_ERR, "setsockopt SO_REUSEADDR: %m");
535 setbindhost(&inetaddr, bindhost[i]);
536 if (bind(tpipsock,
537 (struct sockaddr *)&inetaddr, sizeof (inetaddr)) < 0) {
538 syslog(LOG_ERR, "can't bind tcp addr %s: %m", bindhost[i]);
539 exit(1);
540 }
541 if (listen(tpipsock, 5) < 0) {
542 syslog(LOG_ERR, "listen failed");
543 exit(1);
544 }
545 /*
546 * XXX
547 * Someday this should probably use "rpcbind", the son of
548 * portmap.
549 */
550 if (!pmap_set(RPCPROG_NFS, NFS_VER2, IPPROTO_TCP, NFS_PORT)) {
551 syslog(LOG_ERR, "can't register tcp with portmap");
552 exit(1);
553 }
554 FD_SET(tpipsock, &sockbits);
555 maxsock = tpipsock;
556 connect_type_cnt++;
557 }
558#endif /* notyet */
559
560 if (connect_type_cnt == 0)
561 exit(0);
562
563 setproctitle("master");
564
565 /*
566 * Loop forever accepting connections and passing the sockets
567 * into the kernel for the mounts.
568 */
569 for (;;) {
570 ready = sockbits;
571 if (connect_type_cnt > 1) {
572 if (select(maxsock + 1,
573 &ready, NULL, NULL, NULL) < 1) {
574 syslog(LOG_ERR, "select failed: %m");
575 exit(1);
576 }
577 }
578 if (tcpflag && FD_ISSET(tcpsock, &ready)) {
579 len = sizeof(inetpeer);
580 if ((msgsock = accept(tcpsock,
581 (struct sockaddr *)&inetpeer, &len)) < 0) {
582 syslog(LOG_ERR, "accept failed: %m");
583 exit(1);
584 }
585 memset(inetpeer.sin_zero, 0, sizeof(inetpeer.sin_zero));
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)&inetpeer;
592 nfsdargs.namelen = sizeof(inetpeer);
593 nfssvc(NFSSVC_ADDSOCK, &nfsdargs);
7cee7052 594 close(msgsock);
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595 }
596#ifdef notyet
597 if (tp4flag && FD_ISSET(tp4sock, &ready)) {
598 len = sizeof(isopeer);
599 if ((msgsock = accept(tp4sock,
600 (struct sockaddr *)&isopeer, &len)) < 0) {
601 syslog(LOG_ERR, "accept failed: %m");
602 exit(1);
603 }
604 if (setsockopt(msgsock, SOL_SOCKET,
605 SO_KEEPALIVE, (char *)&on, sizeof(on)) < 0)
606 syslog(LOG_ERR,
607 "setsockopt SO_KEEPALIVE: %m");
608 nfsdargs.sock = msgsock;
609 nfsdargs.name = (caddr_t)&isopeer;
610 nfsdargs.namelen = len;
611 nfssvc(NFSSVC_ADDSOCK, &nfsdargs);
7cee7052 612 close(msgsock);
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613 }
614 if (tpipflag && FD_ISSET(tpipsock, &ready)) {
615 len = sizeof(inetpeer);
616 if ((msgsock = accept(tpipsock,
617 (struct sockaddr *)&inetpeer, &len)) < 0) {
618 syslog(LOG_ERR, "accept failed: %m");
619 exit(1);
620 }
621 if (setsockopt(msgsock, SOL_SOCKET,
622 SO_KEEPALIVE, (char *)&on, sizeof(on)) < 0)
623 syslog(LOG_ERR, "setsockopt SO_KEEPALIVE: %m");
624 nfsdargs.sock = msgsock;
625 nfsdargs.name = (caddr_t)&inetpeer;
626 nfsdargs.namelen = len;
627 nfssvc(NFSSVC_ADDSOCK, &nfsdargs);
7cee7052 628 close(msgsock);
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629 }
630#endif /* notyet */
631 }
632}
633
634void
635setbindhost(struct sockaddr_in *ia, const char *bindhost)
636{
637 ia->sin_family = AF_INET;
638 ia->sin_port = htons(NFS_PORT);
639 ia->sin_len = sizeof(*ia);
640 if (bindhost == NULL || strcmp(bindhost,"*") == 0) {
641 ia->sin_addr.s_addr = INADDR_ANY;
642 } else {
643 if (inet_aton(bindhost, &ia->sin_addr) == 0) {
644 struct hostent *he;
645
646 he = gethostbyname2(bindhost, ia->sin_family);
647 if (he == NULL) {
648 syslog(LOG_ERR, "gethostbyname of %s failed", bindhost);
649 exit(1);
650 }
651 bcopy(he->h_addr, &ia->sin_addr, he->h_length);
652 }
653 }
654}
655
656void
b5744197 657usage(void)
984263bc 658{
7cee7052 659 fprintf(stderr, "usage: nfsd %s\n", USAGE);
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660 exit(1);
661}
662
663void
b5744197 664nonfs(int signo)
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665{
666 syslog(LOG_ERR, "missing system call: NFS not available");
667}
668
669void
b5744197 670reapchild(int signo)
984263bc
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671{
672
673 while (wait3(NULL, WNOHANG, NULL) > 0);
674}
675
676#ifdef OLD_SETPROCTITLE
677#ifdef __FreeBSD__
678void
b5744197 679setproctitle(char *a)
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680{
681 register char *cp;
682 char buf[80];
683
684 cp = Argv[0];
7cee7052
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685 snprintf(buf, sizeof(buf), "nfsd-%s", a);
686 strncpy(cp, buf, LastArg - cp);
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687 cp += strlen(cp);
688 while (cp < LastArg)
689 *cp++ = '\0';
690 Argv[1] = NULL;
691}
692#endif /* __FreeBSD__ */
693#endif