3
4/*
5 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
6 * unrestricted use provided that this legend is included on all tape
7 * media and as a part of the software program in whole or part. Users
8 * may copy or modify Sun RPC without charge, but are not authorized
9 * to license or distribute it to anyone else except as part of a product or
10 * program developed by the user.
11 *
12 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
13 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
14 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
15 *
16 * Sun RPC is provided with no support and without any obligation on the
17 * part of Sun Microsystems, Inc. to assist in its use, correction,
18 * modification or enhancement.
19 *
20 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
21 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
22 * OR ANY PART THEREOF.
23 *
24 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
25 * or profits or other special, indirect and consequential damages, even if
26 * Sun has been advised of the possibility of such damages.
27 *
28 * Sun Microsystems, Inc.
29 * 2550 Garcia Avenue
30 * Mountain View, California 94043
31 */
32/*
33 * Copyright (c) 1984 - 1991 by Sun Microsystems, Inc.
34 */
35
36/* #ident "@(#)rpcbind.c 1.19 94/04/25 SMI" */
37
38#if 0
39#ifndef lint
40static char sccsid[] = "@(#)rpcbind.c 1.35 89/04/21 Copyr 1984 Sun Micro";
41#endif
42#endif
43
44/*
45 * rpcbind.c
46 * Implements the program, version to address mapping for rpc.
47 *
48 */
49
50#include <sys/types.h>
51#include <sys/stat.h>
52#include <sys/errno.h>
53#include <sys/time.h>
54#include <sys/resource.h>
55#include <sys/wait.h>
56#include <sys/signal.h>
57#include <sys/socket.h>
58#include <sys/un.h>
59#include <rpc/rpc.h>
60#include <rpc/rpc_com.h>
61#ifdef PORTMAP
62#include <netinet/in.h>
63#endif
64#include <arpa/inet.h>
65#include <fcntl.h>
66#include <netdb.h>
67#include <stdio.h>
68#include <netconfig.h>
69#include <stdlib.h>
70#include <unistd.h>
71#include <syslog.h>
72#include <err.h>
73#include <libutil.h>
74#include <pwd.h>
75#include <string.h>
76#include <errno.h>
77#include "rpcbind.h"
78
79/* Global variables */
80int debugging = 0; /* Tell me what's going on */
81int doabort = 0; /* When debugging, do an abort on errors */
82rpcblist_ptr list_rbl; /* A list of version 3/4 rpcbind services */
83
84/* who to suid to if -s is given */
85#define RUN_AS "daemon"
86
87#define RPCBINDDLOCK "/var/run/rpcbind.lock"
88
89int runasdaemon = 0;
90int insecure = 0;
91int oldstyle_local = 0;
92int verboselog = 0;
93
94char **hosts = NULL;
95struct sockaddr **bound_sa;
96int ipv6_only = 0;
97int nhosts = 0;
98int on = 1;
99int rpcbindlockfd;
100
101#ifdef WARMSTART
102/* Local Variable */
103static int warmstart = 0; /* Grab an old copy of registrations. */
104#endif
105
106#ifdef PORTMAP
107struct pmaplist *list_pml; /* A list of version 2 rpcbind services */
108char *udptrans; /* Name of UDP transport */
109char *tcptrans; /* Name of TCP transport */
110char *udp_uaddr; /* Universal UDP address */
111char *tcp_uaddr; /* Universal TCP address */
112#endif
113static char servname[] = "rpcbind";
114static char superuser[] = "superuser";
115
116int main(int, char *[]);
117
118static int init_transport(struct netconfig *);
119static void rbllist_add(rpcprog_t, rpcvers_t, struct netconfig *,
120 struct netbuf *);
121static void terminate(int);
122static void parseargs(int, char *[]);
123static void update_bound_sa(void);
124
125int
126main(int argc, char *argv[])
127{
128 struct netconfig *nconf;
129 void *nc_handle; /* Net config handle */
130 struct rlimit rl;
131 int maxrec = RPC_MAXDATASIZE;
132
133 parseargs(argc, argv);
134
135 update_bound_sa();
136
137 /* Check that another rpcbind isn't already running. */
138 if ((rpcbindlockfd = (open(RPCBINDDLOCK,
139 O_RDONLY|O_CREAT, 0444))) == -1)
140 err(1, "%s", RPCBINDDLOCK);
141
142 if(flock(rpcbindlockfd, LOCK_EX|LOCK_NB) == -1 && errno == EWOULDBLOCK)
143 errx(1, "another rpcbind is already running. Aborting");
144
145 getrlimit(RLIMIT_NOFILE, &rl);
146 if (rl.rlim_cur < 128) {
147 if (rl.rlim_max <= 128)
148 rl.rlim_cur = rl.rlim_max;
149 else
150 rl.rlim_cur = 128;
151 setrlimit(RLIMIT_NOFILE, &rl);
152 }
153 openlog("rpcbind", LOG_CONS, LOG_DAEMON);
154 if (geteuid()) { /* This command allowed only to root */
155 fprintf(stderr, "Sorry. You are not superuser\n");
156 exit(1);
157 }
158 nc_handle = setnetconfig(); /* open netconfig file */
159 if (nc_handle == NULL) {
160 syslog(LOG_ERR, "could not read /etc/netconfig");
161 exit(1);
162 }
163#ifdef PORTMAP
164 udptrans = "";
165 tcptrans = "";
166#endif
167
168 nconf = getnetconfigent("local");
169 if (nconf == NULL)
170 nconf = getnetconfigent("unix");
171 if (nconf == NULL) {
172 syslog(LOG_ERR, "%s: can't find local transport\n", argv[0]);
173 exit(1);
174 }
175
176 rpc_control(RPC_SVC_CONNMAXREC_SET, &maxrec);
177
178 init_transport(nconf);
179
180 while ((nconf = getnetconfig(nc_handle))) {
|
188 }
189 endnetconfig(nc_handle);
190
191 /* catch the usual termination signals for graceful exit */
192 (void) signal(SIGCHLD, reap);
193 (void) signal(SIGINT, terminate);
194 (void) signal(SIGTERM, terminate);
195 (void) signal(SIGQUIT, terminate);
196 /* ignore others that could get sent */
197 (void) signal(SIGPIPE, SIG_IGN);
198 (void) signal(SIGHUP, SIG_IGN);
199 (void) signal(SIGUSR1, SIG_IGN);
200 (void) signal(SIGUSR2, SIG_IGN);
201#ifdef WARMSTART
202 if (warmstart) {
203 read_warmstart();
204 }
205#endif
206 if (debugging) {
207 printf("rpcbind debugging enabled.");
208 if (doabort) {
209 printf(" Will abort on errors!\n");
210 } else {
211 printf("\n");
212 }
213 } else {
214 if (daemon(0, 0))
215 err(1, "fork failed");
216 }
217
218 if (runasdaemon) {
219 struct passwd *p;
220
221 if((p = getpwnam(RUN_AS)) == NULL) {
222 syslog(LOG_ERR, "cannot get uid of daemon: %m");
223 exit(1);
224 }
225 if (setuid(p->pw_uid) == -1) {
226 syslog(LOG_ERR, "setuid to daemon failed: %m");
227 exit(1);
228 }
229 }
230
231 network_init();
232
233 my_svc_run();
234 syslog(LOG_ERR, "svc_run returned unexpectedly");
235 rpcbind_abort();
236 /* NOTREACHED */
237
238 return 0;
239}
240
241/*
242 * Adds the entry into the rpcbind database.
243 * If PORTMAP, then for UDP and TCP, it adds the entries for version 2 also
244 * Returns 0 if succeeds, else fails
245 */
246static int
247init_transport(struct netconfig *nconf)
248{
249 int fd;
250 struct t_bind taddr;
251 struct addrinfo hints, *res = NULL;
252 struct __rpc_sockinfo si;
253 SVCXPRT *my_xprt;
254 int status; /* bound checking ? */
255 int aicode;
256 int addrlen;
257 int nhostsbak;
258 int bound;
259 struct sockaddr *sa;
260 u_int32_t host_addr[4]; /* IPv4 or IPv6 */
261 struct sockaddr_un sun;
262 mode_t oldmask;
263
264 if ((nconf->nc_semantics != NC_TPI_CLTS) &&
265 (nconf->nc_semantics != NC_TPI_COTS) &&
266 (nconf->nc_semantics != NC_TPI_COTS_ORD))
267 return (1); /* not my type */
268#ifdef ND_DEBUG
269 if (debugging) {
270 int i;
271 char **s;
272
273 (void)fprintf(stderr, "%s: %ld lookup routines :\n",
274 nconf->nc_netid, nconf->nc_nlookups);
275 for (i = 0, s = nconf->nc_lookups; i < nconf->nc_nlookups;
276 i++, s++)
277 fprintf(stderr, "[%d] - %s\n", i, *s);
278 }
279#endif
280
281 /*
282 * XXX - using RPC library internal functions.
283 */
284 if ((strcmp(nconf->nc_netid, "local") == 0) ||
285 (strcmp(nconf->nc_netid, "unix") == 0)) {
286 /*
287 * For other transports we call this later, for each socket we
288 * like to bind.
289 */
290 if ((fd = __rpc_nconf2fd(nconf)) < 0) {
291 int non_fatal = 0;
292 if (errno == EPROTONOSUPPORT)
293 non_fatal = 1;
294 syslog(non_fatal?LOG_DEBUG:LOG_ERR, "cannot create socket for %s",
295 nconf->nc_netid);
296 return (1);
297 }
298 }
299
300 if (!__rpc_nconf2sockinfo(nconf, &si)) {
301 syslog(LOG_ERR, "cannot get information for %s",
302 nconf->nc_netid);
303 return (1);
304 }
305
306 if ((strcmp(nconf->nc_netid, "local") == 0) ||
307 (strcmp(nconf->nc_netid, "unix") == 0)) {
308 memset(&sun, 0, sizeof sun);
309 sun.sun_family = AF_LOCAL;
310 unlink(_PATH_RPCBINDSOCK);
311 strcpy(sun.sun_path, _PATH_RPCBINDSOCK);
312 sun.sun_len = SUN_LEN(&sun);
313 addrlen = sizeof (struct sockaddr_un);
314 sa = (struct sockaddr *)&sun;
315 } else {
316 /* Get rpcbind's address on this transport */
317
318 memset(&hints, 0, sizeof hints);
319 hints.ai_flags = AI_PASSIVE;
320 hints.ai_family = si.si_af;
321 hints.ai_socktype = si.si_socktype;
322 hints.ai_protocol = si.si_proto;
323 }
324
325 if ((strcmp(nconf->nc_netid, "local") != 0) &&
326 (strcmp(nconf->nc_netid, "unix") != 0)) {
327 /*
328 * If no hosts were specified, just bind to INADDR_ANY.
329 * Otherwise make sure 127.0.0.1 is added to the list.
330 */
331 nhostsbak = nhosts + 1;
332 hosts = realloc(hosts, nhostsbak * sizeof(char *));
333 if (nhostsbak == 1)
334 hosts[0] = "*";
335 else {
336 if (hints.ai_family == AF_INET) {
337 hosts[nhostsbak - 1] = "127.0.0.1";
338 } else if (hints.ai_family == AF_INET6) {
339 hosts[nhostsbak - 1] = "::1";
340 } else
341 return 1;
342 }
343
344 /*
345 * Bind to specific IPs if asked to
346 */
347 bound = 0;
348 while (nhostsbak > 0) {
349 --nhostsbak;
350 /*
351 * XXX - using RPC library internal functions.
352 */
353 if ((fd = __rpc_nconf2fd(nconf)) < 0) {
354 int non_fatal = 0;
355 if (errno == EPROTONOSUPPORT &&
356 nconf->nc_semantics != NC_TPI_CLTS)
357 non_fatal = 1;
358 syslog(non_fatal ? LOG_DEBUG : LOG_ERR,
359 "cannot create socket for %s", nconf->nc_netid);
360 return (1);
361 }
362 switch (hints.ai_family) {
363 case AF_INET:
364 if (inet_pton(AF_INET, hosts[nhostsbak],
365 host_addr) == 1) {
366 hints.ai_flags &= AI_NUMERICHOST;
367 } else {
368 /*
369 * Skip if we have an AF_INET6 adress.
370 */
371 if (inet_pton(AF_INET6,
372 hosts[nhostsbak], host_addr) == 1) {
373 close(fd);
374 continue;
375 }
376 }
377 break;
378 case AF_INET6:
379 if (inet_pton(AF_INET6, hosts[nhostsbak],
380 host_addr) == 1) {
381 hints.ai_flags &= AI_NUMERICHOST;
382 } else {
383 /*
384 * Skip if we have an AF_INET adress.
385 */
386 if (inet_pton(AF_INET, hosts[nhostsbak],
387 host_addr) == 1) {
388 close(fd);
389 continue;
390 }
391 }
392 if (setsockopt(fd, IPPROTO_IPV6,
393 IPV6_V6ONLY, &on, sizeof on) < 0) {
394 syslog(LOG_ERR,
395 "can't set v6-only binding for "
396 "ipv6 socket: %m");
397 continue;
398 }
399 break;
400 default:
401 break;
402 }
403
404 /*
405 * If no hosts were specified, just bind to INADDR_ANY
406 */
407 if (strcmp("*", hosts[nhostsbak]) == 0)
408 hosts[nhostsbak] = NULL;
409 if ((strcmp(nconf->nc_netid, "local") != 0) &&
410 (strcmp(nconf->nc_netid, "unix") != 0)) {
411 if ((aicode = getaddrinfo(hosts[nhostsbak],
412 servname, &hints, &res)) != 0) {
413 syslog(LOG_ERR,
414 "cannot get local address for %s: %s",
415 nconf->nc_netid, gai_strerror(aicode));
416 continue;
417 }
418 addrlen = res->ai_addrlen;
419 sa = (struct sockaddr *)res->ai_addr;
420 }
421 oldmask = umask(S_IXUSR|S_IXGRP|S_IXOTH);
422 if (bind(fd, sa, addrlen) != 0) {
423 syslog(LOG_ERR, "cannot bind %s on %s: %m",
424 (hosts[nhostsbak] == NULL) ? "*" :
425 hosts[nhostsbak], nconf->nc_netid);
426 if (res != NULL)
427 freeaddrinfo(res);
428 continue;
429 } else
430 bound = 1;
431 (void)umask(oldmask);
432
433 /* Copy the address */
434 taddr.addr.len = taddr.addr.maxlen = addrlen;
435 taddr.addr.buf = malloc(addrlen);
436 if (taddr.addr.buf == NULL) {
437 syslog(LOG_ERR,
438 "cannot allocate memory for %s address",
439 nconf->nc_netid);
440 if (res != NULL)
441 freeaddrinfo(res);
442 return 1;
443 }
444 memcpy(taddr.addr.buf, sa, addrlen);
445#ifdef ND_DEBUG
446 if (debugging) {
447 /*
448 * for debugging print out our universal
449 * address
450 */
451 char *uaddr;
452 struct netbuf nb;
453
454 nb.buf = sa;
455 nb.len = nb.maxlen = sa->sa_len;
456 uaddr = taddr2uaddr(nconf, &nb);
457 (void)fprintf(stderr,
458 "rpcbind : my address is %s\n", uaddr);
459 (void)free(uaddr);
460 }
461#endif
462
463 if (nconf->nc_semantics != NC_TPI_CLTS)
464 listen(fd, SOMAXCONN);
465
466 my_xprt = (SVCXPRT *)svc_tli_create(fd, nconf, &taddr,
467 RPC_MAXDATASIZE, RPC_MAXDATASIZE);
468 if (my_xprt == (SVCXPRT *)NULL) {
469 syslog(LOG_ERR, "%s: could not create service",
470 nconf->nc_netid);
471 goto error;
472 }
473 }
474 if (!bound)
475 return 1;
476 } else {
477 oldmask = umask(S_IXUSR|S_IXGRP|S_IXOTH);
478 if (bind(fd, sa, addrlen) < 0) {
479 syslog(LOG_ERR, "cannot bind %s: %m", nconf->nc_netid);
480 if (res != NULL)
481 freeaddrinfo(res);
482 return 1;
483 }
484 (void) umask(oldmask);
485
486 /* Copy the address */
487 taddr.addr.len = taddr.addr.maxlen = addrlen;
488 taddr.addr.buf = malloc(addrlen);
489 if (taddr.addr.buf == NULL) {
490 syslog(LOG_ERR, "cannot allocate memory for %s address",
491 nconf->nc_netid);
492 if (res != NULL)
493 freeaddrinfo(res);
494 return 1;
495 }
496 memcpy(taddr.addr.buf, sa, addrlen);
497#ifdef ND_DEBUG
498 if (debugging) {
499 /* for debugging print out our universal address */
500 char *uaddr;
501 struct netbuf nb;
502
503 nb.buf = sa;
504 nb.len = nb.maxlen = sa->sa_len;
505 uaddr = taddr2uaddr(nconf, &nb);
506 (void) fprintf(stderr, "rpcbind : my address is %s\n",
507 uaddr);
508 (void) free(uaddr);
509 }
510#endif
511
512 if (nconf->nc_semantics != NC_TPI_CLTS)
513 listen(fd, SOMAXCONN);
514
515 my_xprt = (SVCXPRT *)svc_tli_create(fd, nconf, &taddr,
516 RPC_MAXDATASIZE, RPC_MAXDATASIZE);
517 if (my_xprt == (SVCXPRT *)NULL) {
518 syslog(LOG_ERR, "%s: could not create service",
519 nconf->nc_netid);
520 goto error;
521 }
522 }
523
524#ifdef PORTMAP
525 /*
526 * Register both the versions for tcp/ip, udp/ip and local.
527 */
528 if ((strcmp(nconf->nc_protofmly, NC_INET) == 0 &&
529 (strcmp(nconf->nc_proto, NC_TCP) == 0 ||
530 strcmp(nconf->nc_proto, NC_UDP) == 0)) ||
531 (strcmp(nconf->nc_netid, "unix") == 0) ||
532 (strcmp(nconf->nc_netid, "local") == 0)) {
533 struct pmaplist *pml;
534
535 if (!svc_register(my_xprt, PMAPPROG, PMAPVERS,
536 pmap_service, 0)) {
537 syslog(LOG_ERR, "could not register on %s",
538 nconf->nc_netid);
539 goto error;
540 }
541 pml = malloc(sizeof (struct pmaplist));
542 if (pml == NULL) {
543 syslog(LOG_ERR, "no memory!");
544 exit(1);
545 }
546 pml->pml_map.pm_prog = PMAPPROG;
547 pml->pml_map.pm_vers = PMAPVERS;
548 pml->pml_map.pm_port = PMAPPORT;
549 if (strcmp(nconf->nc_proto, NC_TCP) == 0) {
550 if (tcptrans[0]) {
551 syslog(LOG_ERR,
552 "cannot have more than one TCP transport");
553 goto error;
554 }
555 tcptrans = strdup(nconf->nc_netid);
556 pml->pml_map.pm_prot = IPPROTO_TCP;
557
558 /* Let's snarf the universal address */
559 /* "h1.h2.h3.h4.p1.p2" */
560 tcp_uaddr = taddr2uaddr(nconf, &taddr.addr);
561 } else if (strcmp(nconf->nc_proto, NC_UDP) == 0) {
562 if (udptrans[0]) {
563 syslog(LOG_ERR,
564 "cannot have more than one UDP transport");
565 goto error;
566 }
567 udptrans = strdup(nconf->nc_netid);
568 pml->pml_map.pm_prot = IPPROTO_UDP;
569
570 /* Let's snarf the universal address */
571 /* "h1.h2.h3.h4.p1.p2" */
572 udp_uaddr = taddr2uaddr(nconf, &taddr.addr);
573 } else if (strcmp(nconf->nc_netid, "local") == 0)
574 pml->pml_map.pm_prot = IPPROTO_ST;
575 else if (strcmp(nconf->nc_netid, "unix") == 0)
576 pml->pml_map.pm_prot = IPPROTO_ST;
577 pml->pml_next = list_pml;
578 list_pml = pml;
579
580 /* Add version 3 information */
581 pml = malloc(sizeof (struct pmaplist));
582 if (pml == NULL) {
583 syslog(LOG_ERR, "no memory!");
584 exit(1);
585 }
586 pml->pml_map = list_pml->pml_map;
587 pml->pml_map.pm_vers = RPCBVERS;
588 pml->pml_next = list_pml;
589 list_pml = pml;
590
591 /* Add version 4 information */
592 pml = malloc (sizeof (struct pmaplist));
593 if (pml == NULL) {
594 syslog(LOG_ERR, "no memory!");
595 exit(1);
596 }
597 pml->pml_map = list_pml->pml_map;
598 pml->pml_map.pm_vers = RPCBVERS4;
599 pml->pml_next = list_pml;
600 list_pml = pml;
601
602 /* Also add version 2 stuff to rpcbind list */
603 rbllist_add(PMAPPROG, PMAPVERS, nconf, &taddr.addr);
604 }
605#endif
606
607 /* version 3 registration */
608 if (!svc_reg(my_xprt, RPCBPROG, RPCBVERS, rpcb_service_3, NULL)) {
609 syslog(LOG_ERR, "could not register %s version 3",
610 nconf->nc_netid);
611 goto error;
612 }
613 rbllist_add(RPCBPROG, RPCBVERS, nconf, &taddr.addr);
614
615 /* version 4 registration */
616 if (!svc_reg(my_xprt, RPCBPROG, RPCBVERS4, rpcb_service_4, NULL)) {
617 syslog(LOG_ERR, "could not register %s version 4",
618 nconf->nc_netid);
619 goto error;
620 }
621 rbllist_add(RPCBPROG, RPCBVERS4, nconf, &taddr.addr);
622
623 /* decide if bound checking works for this transport */
624 status = add_bndlist(nconf, &taddr.addr);
625#ifdef BIND_DEBUG
626 if (debugging) {
627 if (status < 0) {
628 fprintf(stderr, "Error in finding bind status for %s\n",
629 nconf->nc_netid);
630 } else if (status == 0) {
631 fprintf(stderr, "check binding for %s\n",
632 nconf->nc_netid);
633 } else if (status > 0) {
634 fprintf(stderr, "No check binding for %s\n",
635 nconf->nc_netid);
636 }
637 }
638#endif
639 /*
640 * rmtcall only supported on CLTS transports for now.
641 */
642 if (nconf->nc_semantics == NC_TPI_CLTS) {
643 status = create_rmtcall_fd(nconf);
644
645#ifdef BIND_DEBUG
646 if (debugging) {
647 if (status < 0) {
648 fprintf(stderr,
649 "Could not create rmtcall fd for %s\n",
650 nconf->nc_netid);
651 } else {
652 fprintf(stderr, "rmtcall fd for %s is %d\n",
653 nconf->nc_netid, status);
654 }
655 }
656#endif
657 }
658 return (0);
659error:
660 close(fd);
661 return (1);
662}
663
664/*
665 * Create the list of addresses that we're bound to. Normally, this
666 * list is empty because we're listening on the wildcard address
667 * (nhost == 0). If -h is specified on the command line, then
668 * bound_sa will have a list of the addresses that the program binds
669 * to specifically. This function takes that list and converts them to
670 * struct sockaddr * and stores them in bound_sa.
671 */
672static void
673update_bound_sa(void)
674{
675 struct addrinfo hints, *res = NULL;
676 int i;
677
678 if (nhosts == 0)
679 return;
680 bound_sa = malloc(sizeof(*bound_sa) * nhosts);
681 memset(&hints, 0, sizeof(hints));
682 hints.ai_family = PF_UNSPEC;
683 for (i = 0; i < nhosts; i++) {
684 if (getaddrinfo(hosts[i], NULL, &hints, &res) != 0)
685 continue;
686 bound_sa[i] = malloc(res->ai_addrlen);
687 memcpy(bound_sa[i], res->ai_addr, res->ai_addrlen);
688 }
689}
690
691/*
692 * Match the sa against the list of addresses we've bound to. If
693 * we've not specifically bound to anything, we match everything.
694 * Otherwise, if the IPv4 or IPv6 address matches one of the addresses
695 * in bound_sa, we return true. If not, we return false.
696 */
697int
698listen_addr(const struct sockaddr *sa)
699{
700 int i;
701
702 /*
703 * If nhosts == 0, then there were no -h options on the
704 * command line, so all addresses are addresses we're
705 * listening to.
706 */
707 if (nhosts == 0)
708 return 1;
709 for (i = 0; i < nhosts; i++) {
710 if (bound_sa[i] == NULL ||
711 sa->sa_family != bound_sa[i]->sa_family)
712 continue;
713 switch (sa->sa_family) {
714 case AF_INET:
715 if (memcmp(&SA2SINADDR(sa), &SA2SINADDR(bound_sa[i]),
716 sizeof(struct in_addr)) == 0)
717 return (1);
718 break;
719#ifdef INET6
720 case AF_INET6:
721 if (memcmp(&SA2SIN6ADDR(sa), &SA2SIN6ADDR(bound_sa[i]),
722 sizeof(struct in6_addr)) == 0)
723 return (1);
724 break;
725#endif
726 default:
727 break;
728 }
729 }
730 return (0);
731}
732
733static void
734rbllist_add(rpcprog_t prog, rpcvers_t vers, struct netconfig *nconf,
735 struct netbuf *addr)
736{
737 rpcblist_ptr rbl;
738
739 rbl = malloc(sizeof (rpcblist));
740 if (rbl == NULL) {
741 syslog(LOG_ERR, "no memory!");
742 exit(1);
743 }
744
745 rbl->rpcb_map.r_prog = prog;
746 rbl->rpcb_map.r_vers = vers;
747 rbl->rpcb_map.r_netid = strdup(nconf->nc_netid);
748 rbl->rpcb_map.r_addr = taddr2uaddr(nconf, addr);
749 rbl->rpcb_map.r_owner = strdup(superuser);
750 rbl->rpcb_next = list_rbl; /* Attach to global list */
751 list_rbl = rbl;
752}
753
754/*
755 * Catch the signal and die
756 */
757static void
758terminate(int dummy __unused)
759{
760 close(rpcbindlockfd);
761#ifdef WARMSTART
762 syslog(LOG_ERR,
763 "rpcbind terminating on signal. Restart with \"rpcbind -w\"");
764 write_warmstart(); /* Dump yourself */
765#endif
766 exit(2);
767}
768
769void
|