5 Author: Pekka Riikonen <priikone@silcnet.org>
7 Copyright (C) 1997 - 2005 Pekka Riikonen
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; version 2 of the License.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
20 * Created: Wed Mar 19 00:17:12 1997
22 * This is the main program for the SILC daemon. This parses command
23 * line arguments and creates the server object.
27 #include "serverincludes.h"
28 #include "server_internal.h"
29 #include "silcversion.h"
31 /* For now, we'll have this one server context global for this module. */
32 static SilcServer silcd;
34 static void silc_usage(void);
36 #ifdef HAVE_GETOPT_LONG
37 /* Long command line options */
38 static struct option long_opts[] =
40 { "config-file", 1, NULL, 'f' },
41 { "passphrase", 1, NULL, 'p' },
42 { "debug", 2, NULL, 'd' },
43 { "debug-level", 1, NULL, 'D' },
44 { "hexdump", 0, NULL, 'x' },
45 { "help", 0, NULL, 'h' },
46 { "foreground", 0, NULL, 'F' },
47 { "version", 0, NULL,'V' },
49 /* Key management options */
50 { "create-key-pair", 1, NULL, 'C' },
51 { "pkcs", 1, NULL, 10 },
52 { "bits", 1, NULL, 11 },
53 { "identifier", 1, NULL, 12 },
57 #endif /* HAVE_GETOPT_LONG */
59 /* Command line option variables */
60 static char *opt_keypath = NULL;
61 static char *opt_pkcs = "rsa";
62 static char *opt_identifier = NULL;
63 static int opt_bits = 2048;
65 /* Prints out the usage of silc client */
67 static void silc_usage(void)
70 "Usage: silcd [options]\n"
73 " -f --config-file=FILE Alternate configuration file\n"
74 " -d --debug=string Enable debugging (Implies --foreground)\n"
75 " -D --debug-level=level Enable debugging (Implies --foreground)\n"
76 " -x --hexdump Enable hexdumps (Implies --debug)\n"
77 " -h --help Display this message\n"
78 " -F --foreground Dont fork\n"
79 " -V --version Display version\n"
81 " Key Management Options:\n"
82 " -C, --create-key-pair=PATH Create new public key pair\n"
83 " --pkcs=PKCS Set the PKCS of the public key pair\n"
84 " --bits=VALUE Set length of the public key pair\n"
85 " --identifier=IDENTIFIER Public key identifier\n"
87 " The public key identifier may be of the following format:\n"
89 " UN=<username>, HN=<hostname or IP>, RN=<real name>, E=<email>,\n"
90 " O=<organization>, C=<country>\n"
92 " The UN and HN must be provided, the others are optional. If the\n"
93 " --identifier option is not used an identifier will be created for\n"
94 " the public key automatically.\n"
96 " Example identifier: \"UN=foobar, HN=foo.bar.com, RN=Foo T. Bar, \n"
97 " E=foo@bar.com, C=FI\"\n"
102 /* Die if a *valid* pid file exists already */
104 static void silc_server_checkpid(SilcServer silcd)
106 if (silcd->config->server_info->pid_file) {
111 SILC_LOG_DEBUG(("Checking for another silcd running"));
112 buf = silc_file_readfile(silcd->config->server_info->pid_file, &buf_len);
119 kill(oldpid, SIGCHLD); /* this signal does nothing, check if alive */
120 if (errno != ESRCH) {
121 fprintf(stderr, "\nI detected another daemon running with the "
123 fprintf(stderr, "Please change the config file, or erase the %s\n",
124 silcd->config->server_info->pid_file);
130 /* Drop root privileges. If some system call fails, die. */
132 static void silc_server_drop_privs(SilcServer server)
134 /* Are we executing silcd as root or a regular user? */
136 SILC_LOG_DEBUG(("Server started as user"));
143 SILC_LOG_DEBUG(("Server started as root. Dropping privileges."));
145 /* Get the values given for user and group in configuration file */
146 user = server->config->server_info->user;
147 group = server->config->server_info->group;
149 if (!user || !group) {
150 fprintf(stderr, "Error:"
151 "\tSILC server must not be run as root. For the security of your\n"
152 "\tsystem it is strongly suggested that you run SILC under dedicated\n"
153 "\tuser account. Modify the ServerInfo configuration section to run\n"
154 "\tthe server as non-root user.\n");
158 /* Check whether the user/group does not begin with a number */
159 if (isdigit(user[0]) || isdigit(group[0])) {
160 SILC_LOG_DEBUG(("User and/or group starts with a number"));
161 fprintf(stderr, "Invalid user and/or group information\n");
162 fprintf(stderr, "Please assign them as names, not numbers\n");
166 if (!(pw = getpwnam(user))) {
167 fprintf(stderr, "Error: No such user %s found.\n", user);
170 if (!(gr = getgrnam(group))) {
171 fprintf(stderr, "Error: No such group %s found.\n", group);
175 /* Check whether user and/or group is set to root. If yes, exit
176 immediately. Otherwise, setgid and setuid server to user.group */
177 if ((gr->gr_gid == 0) || (pw->pw_uid == 0)) {
178 fprintf(stderr, "Error:"
179 "\tSILC server must not be run as root. For the security of your\n"
180 "\tsystem it is strongly suggested that you run SILC under dedicated\n"
181 "\tuser account. Modify the ServerInfo configuration section to run\n"
182 "\tthe server as non-root user.\n");
186 SILC_LOG_DEBUG(("Changing to group %s (gid=%u)", group, gr->gr_gid));
187 if (setgid(gr->gr_gid) != 0) {
188 fprintf(stderr, "Error: Failed setgid() to %s (gid=%u). Exiting.\n",
192 #if defined HAVE_SETGROUPS && defined HAVE_INITGROUPS
193 SILC_LOG_DEBUG(("Removing supplementary groups"));
194 if (setgroups(0, NULL) != 0) {
195 fprintf(stderr, "Error: Failed setgroups() to NULL. Exiting.\n");
198 SILC_LOG_DEBUG(("Setting supplementary groups for user %s", user));
199 if (initgroups(user, gr->gr_gid) != 0) {
200 fprintf(stderr, "Error: Failed initgroups() for user %s (gid=%u). "
201 "Exiting.\n", user, gr->gr_gid);
205 SILC_LOG_DEBUG(("Changing to user %s (uid=%u)", user, pw->pw_uid));
206 if (setuid(pw->pw_uid) != 0) {
207 fprintf(stderr, "Error: Failed to setuid() to %s (gid=%u). Exiting.\n",
214 /* Fork server to background */
216 static void silc_server_daemonise(SilcServer server)
220 SILC_LOG_DEBUG(("Forking SILC server to background"));
222 if ((i = fork()) < 0) {
223 fprintf(stderr, "Error: fork() failed: %s\n", strerror(errno));
227 if (i) /* Kill the parent */
230 server->background = TRUE;
233 /* XXX close stdin, stdout, stderr -- before this, check that all writes
234 to stderr are changed to SILC_SERVER_LOG_ERROR() */
237 static void signal_handler(int sig)
239 /* Mark the signal to be caller after this signal is over. */
240 silc_schedule_signal_call(silcd->schedule, sig);
243 SILC_TASK_CALLBACK(got_hup)
245 /* First, reset all log files (they might have been deleted) */
246 silc_log_reset_all();
248 /* Rehash the configuration file */
249 silc_server_rehash(silcd);
252 SILC_TASK_CALLBACK(stop_server)
254 /* Stop scheduler, the program will stop eventually after noticing
255 that the scheduler is down. */
256 silc_schedule_stop(silcd->schedule);
259 /* Dump server statistics into a file into /tmp directory */
261 SILC_TASK_CALLBACK(dump_stats)
266 memset(filename, 0, sizeof(filename));
267 snprintf(filename, sizeof(filename) - 1, "/tmp/silcd.%d.stats", getpid());
268 fdd = fopen(filename, "w+");
272 #define STAT_OUTPUT(fmt, stat) fprintf(fdd, fmt "\n", (int)stat);
274 fprintf(fdd, "SILC Server %s Statistics\n\n", silcd->server_name);
275 fprintf(fdd, "Local Stats:\n");
276 STAT_OUTPUT(" My clients : %d", silcd->stat.my_clients);
277 STAT_OUTPUT(" My servers : %d", silcd->stat.my_servers);
278 STAT_OUTPUT(" My routers : %d", silcd->stat.my_routers);
279 STAT_OUTPUT(" My channels : %d", silcd->stat.my_channels);
280 STAT_OUTPUT(" My joined users : %d", silcd->stat.my_chanclients);
281 STAT_OUTPUT(" My aways : %d", silcd->stat.my_aways);
282 STAT_OUTPUT(" My detached clients : %d", silcd->stat.my_detached);
283 STAT_OUTPUT(" My server operators : %d", silcd->stat.my_server_ops);
284 STAT_OUTPUT(" My router operators : %d", silcd->stat.my_router_ops);
285 fprintf(fdd, "\nGlobal Stats:\n");
286 STAT_OUTPUT(" Cell clients : %d", silcd->stat.cell_clients);
287 STAT_OUTPUT(" Cell servers : %d", silcd->stat.cell_servers);
288 STAT_OUTPUT(" Cell channels : %d", silcd->stat.cell_channels);
289 STAT_OUTPUT(" Cell joined users : %d", silcd->stat.cell_chanclients);
290 STAT_OUTPUT(" All clients : %d", silcd->stat.clients);
291 STAT_OUTPUT(" All servers : %d", silcd->stat.servers);
292 STAT_OUTPUT(" All routers : %d", silcd->stat.routers);
293 STAT_OUTPUT(" All channels : %d", silcd->stat.channels);
294 STAT_OUTPUT(" All joined users : %d", silcd->stat.chanclients);
295 STAT_OUTPUT(" All aways : %d", silcd->stat.aways);
296 STAT_OUTPUT(" All detached clients : %d", silcd->stat.detached);
297 STAT_OUTPUT(" All server operators : %d", silcd->stat.server_ops);
298 STAT_OUTPUT(" All router operators : %d", silcd->stat.router_ops);
299 fprintf(fdd, "\nGeneral Stats:\n");
300 STAT_OUTPUT(" Connection attempts : %d", silcd->stat.conn_attempts);
301 STAT_OUTPUT(" Connection failures : %d", silcd->stat.conn_failures);
302 STAT_OUTPUT(" Authentication attempts : %d", silcd->stat.auth_attempts);
303 STAT_OUTPUT(" Authentication failures : %d", silcd->stat.auth_failures);
304 STAT_OUTPUT(" Packets sent : %d", silcd->stat.packets_sent);
305 STAT_OUTPUT(" Packets received : %d", silcd->stat.packets_received);
306 STAT_OUTPUT(" Commands sent : %d", silcd->stat.commands_sent);
307 STAT_OUTPUT(" Commands received : %d", silcd->stat.commands_received);
308 STAT_OUTPUT(" Connections : %d", silcd->stat.conn_num);
313 /* Dump internal flags */
314 fprintf(fdd, "\nDumping internal flags\n");
315 fprintf(fdd, " server_type : %d\n", silcd->server_type);
316 fprintf(fdd, " standalone : %d\n", silcd->standalone);
317 fprintf(fdd, " listenning : %d\n", silcd->listenning);
318 fprintf(fdd, " background : %d\n", silcd->background);
319 fprintf(fdd, " backup_router : %d\n", silcd->backup_router);
320 fprintf(fdd, " backup_primary : %d\n", silcd->backup_primary);
321 fprintf(fdd, " backup_noswitch : %d\n", silcd->backup_noswitch);
322 fprintf(fdd, " backup_closed : %d\n", silcd->backup_closed);
323 fprintf(fdd, " wait_backup : %d\n", silcd->wait_backup);
325 fprintf(fdd, " primary router : %s\n",
326 silcd->router->server_name ? silcd->router->server_name : "");
328 /* Dump socket connections */
331 SilcSocketConnection s;
333 fprintf(fdd, "\nDumping socket connections\n");
334 for (i = 0; i < silcd->config->param.connections_max; i++) {
335 s = silcd->sockets[i];
338 fprintf(fdd, " %d: host %s ip %s port %d type %d flags 0x%x\n",
339 s->sock, s->hostname ? s->hostname : "N/A",
340 s->ip ? s->ip : "N/A", s->port, s->type,
341 (unsigned int)s->flags);
347 SilcIDCacheList list = NULL;
348 SilcIDCacheEntry id_cache = NULL;
349 SilcServerEntry server_entry;
350 SilcClientEntry client_entry;
351 SilcChannelEntry channel_entry;
354 fprintf(fdd, "\nDumping databases\n");
356 if (silc_idcache_get_all(silcd->local_list->servers, &list)) {
357 if (silc_idcache_list_first(list, &id_cache)) {
358 fprintf(fdd, "\nServers in local-list:\n");
361 server_entry = (SilcServerEntry)id_cache->context;
362 fprintf(fdd, " %d: name %s id %s status 0x%x\n", c,
363 server_entry->server_name ? server_entry->server_name :
364 "N/A", server_entry->id ?
365 silc_id_render(server_entry->id, SILC_ID_SERVER) : "N/A",
366 server_entry->data.status);
367 if (!silc_idcache_list_next(list, &id_cache))
372 silc_idcache_list_free(list);
374 if (silc_idcache_get_all(silcd->global_list->servers, &list)) {
375 if (silc_idcache_list_first(list, &id_cache)) {
376 fprintf(fdd, "\nServers in global-list:\n");
379 server_entry = (SilcServerEntry)id_cache->context;
380 fprintf(fdd, " %d: name %s id %s status 0x%x\n", c,
381 server_entry->server_name ? server_entry->server_name :
382 "N/A", server_entry->id ?
383 silc_id_render(server_entry->id, SILC_ID_SERVER) : "N/A",
384 server_entry->data.status);
385 if (!silc_idcache_list_next(list, &id_cache))
390 silc_idcache_list_free(list);
392 if (silc_idcache_get_all(silcd->local_list->clients, &list)) {
393 if (silc_idcache_list_first(list, &id_cache)) {
394 fprintf(fdd, "\nClients in local-list:\n");
397 client_entry = (SilcClientEntry)id_cache->context;
398 server_entry = client_entry->router;
399 fprintf(fdd, " %d: name %s id %s status 0x%x from %s\n", c,
400 client_entry->nickname ? client_entry->nickname :
401 (unsigned char *)"N/A", client_entry->id ?
402 silc_id_render(client_entry->id, SILC_ID_CLIENT) : "N/A",
403 client_entry->data.status, server_entry ?
404 server_entry->server_name ? server_entry->server_name :
406 if (!silc_idcache_list_next(list, &id_cache))
411 silc_idcache_list_free(list);
413 if (silc_idcache_get_all(silcd->global_list->clients, &list)) {
414 if (silc_idcache_list_first(list, &id_cache)) {
415 fprintf(fdd, "\nClients in global-list:\n");
418 client_entry = (SilcClientEntry)id_cache->context;
419 server_entry = client_entry->router;
420 fprintf(fdd, " %d: name %s id %s status 0x%x from %s\n", c,
421 client_entry->nickname ? client_entry->nickname :
422 (unsigned char *)"N/A", client_entry->id ?
423 silc_id_render(client_entry->id, SILC_ID_CLIENT) : "N/A",
424 client_entry->data.status, server_entry ?
425 server_entry->server_name ? server_entry->server_name :
427 if (!silc_idcache_list_next(list, &id_cache))
432 silc_idcache_list_free(list);
434 if (silc_idcache_get_all(silcd->local_list->channels, &list)) {
435 if (silc_idcache_list_first(list, &id_cache)) {
436 fprintf(fdd, "\nChannels in local-list:\n");
439 channel_entry = (SilcChannelEntry)id_cache->context;
440 fprintf(fdd, " %d: name %s id %s\n", c,
441 channel_entry->channel_name ? channel_entry->channel_name :
442 "N/A", channel_entry->id ?
443 silc_id_render(channel_entry->id, SILC_ID_CHANNEL) : "N/A");
444 if (!silc_idcache_list_next(list, &id_cache))
449 silc_idcache_list_free(list);
451 if (silc_idcache_get_all(silcd->global_list->channels, &list)) {
452 if (silc_idcache_list_first(list, &id_cache)) {
453 fprintf(fdd, "\nChannels in global-list:\n");
456 channel_entry = (SilcChannelEntry)id_cache->context;
457 fprintf(fdd, " %d: name %s id %s\n", c,
458 channel_entry->channel_name ? channel_entry->channel_name :
459 "N/A", channel_entry->id ?
460 silc_id_render(channel_entry->id, SILC_ID_CHANNEL) : "N/A");
461 if (!silc_idcache_list_next(list, &id_cache))
466 silc_idcache_list_free(list);
482 static DebugLevel debug_levels[] = {
483 /* Very basic stuff from silcd/ */
484 { 3, "silcd\\.c,server\\.c" },
486 /* More stuff from silcd/ */
487 { 7, "silcd\\.c,server\\.c,command\\.c,server_backup\\.c,packet_send\\.c" },
489 /* All basic stuff from silcd/ */
490 { 10, "silc_server_*" },
492 /* All from silcd/ */
493 { 15, "*silcd*,*serverid*,silc_server_*,*idlist*" },
495 /* All from silcd/ and basic stuff from libs */
496 { 20, "*silcd*,*serverid*,silc_server_*,*idlist*,*silcauth*,*silcske*" },
498 /* All from silcd/ and more stuff from libs */
499 { 25, "*silcd*,*serverid*,silc_server_*,*idlist*,*silcauth*,"
500 "*silcpacket*,*ske*,*silcrng*" },
502 /* All from silcd/ and even more stuff from libs */
503 { 30, "*silcd*,*serverid*,silc_server_*,*idlist*,*silcauth*,"
504 "*silcpacket*,*ske*,*silcrng*,*command*,*channel*,*private*,*notify*" },
506 /* All from silcd/ and even more stuff from libs + all from silccore */
507 { 35, "*silcd*,*serverid*,silc_server_*,*idlist*,*silcauth*,"
508 "*silcpacket*,*ske*,*silcrng*,*command*,*channel*,*private*,*notify*"
509 "*silcid*,*argument*" },
511 /* All from silcd/, all from silccore, silccrypt and silcmath */
512 { 40, "*silcd*,*serverid*,silc_server_*,*idlist*,*silcauth*,"
513 "*silcpacket*,*ske*,*silcrng*,*command*,*channel*,*private*,*notify*"
514 "*silcid*,*argument*,*pkcs*,*hmac*,*hash*,*cipher*,silc_math*" },
516 /* All from silcd/, all from silccore, silccrypt and silcmath + stuff
518 { 45, "*silcd*,*serverid*,silc_server_*,*idlist*,*silcauth*,"
519 "*silcpacket*,*ske*,*silcrng*,*command*,*channel*,*private*,*notify*"
520 "*silcid*,*argument*,*pkcs*,*hmac*,*hash*,*cipher*,silc_math*,*sim*"
523 /* All from silcd/, all from silccore, silccrypt and silcmath + more stuff
525 { 50, "*silcd*,*serverid*,silc_server_*,*idlist*,*silcauth*,"
526 "*silcpacket*,*ske*,*silcrng*,*command*,*channel*,*private*,*notify*"
527 "*silcid*,*argument*,*pkcs*,*hmac*,*hash*,*cipher*,silc_math*,*sim*"
528 "*sockconn*,*net*" },
530 /* All from silcd/, all from silccore, silccrypt and silcmath + more stuff
532 { 55, "*silcd*,*serverid*,silc_server_*,*idlist*,*silcauth*,"
533 "*silcpacket*,*ske*,*silcrng*,*command*,*channel*,*private*,*notify*"
534 "*silcid*,*argument*,*pkcs*,*hmac*,*hash*,*cipher*,silc_math*,*sim*"
535 "*sockconn*,*net*,*log*,*config*" },
543 static void silc_get_debug_level(int level)
550 for (i = 0; debug_levels[i].string; i++)
551 if (level <= debug_levels[i].level) {
552 silc_log_set_debug_string(debug_levels[i].string);
556 #endif /* SILC_DEBUG */
558 /* This function should not be called directly but through the appropriate
559 wrapper macro defined in server.h */
561 void silc_server_stderr(SilcLogType type, char *message)
563 if (silcd->background) {
564 char *p, *n = message;
566 /* remove newlines if we are going to output it to a log file */
567 for (p = n; *p; p++) {
576 /* the message is freed inside the logging function */
577 silc_log_output(type, message);
580 fprintf(stderr, "%s\n", message);
585 int main(int argc, char **argv)
587 int ret, opt, option_index;
588 bool foreground = FALSE;
589 bool opt_create_keypair = FALSE;
590 char *silcd_config_file = NULL;
593 /* Parse command line arguments */
595 #ifdef HAVE_GETOPT_LONG
596 while ((opt = getopt_long(argc, argv, "f:p:d:D:xhFVC:",
597 long_opts, &option_index)) != EOF) {
599 while ((opt = getopt(argc, argv, "f:p:d:D:xhFVC:")) != EOF) {
600 #endif /* HAVE_GETOPT_LONG */
606 printf("SILCd Secure Internet Live Conferencing daemon, "
607 "version %s (base: SILC Toolkit %s)\n",
608 silc_dist_version, silc_version);
609 printf("(c) 1997 - 2005 Pekka Riikonen "
610 "<priikone@silcnet.org>\n");
615 silc_log_debug(TRUE);
616 silc_log_quick(TRUE);
618 silc_log_set_debug_string(optarg);
619 foreground = TRUE; /* implied */
622 "Run-time debugging is not enabled. To enable it recompile\n"
623 "the server with --enable-debug configuration option.\n");
628 silc_log_debug(TRUE);
629 silc_log_quick(TRUE);
631 silc_get_debug_level(atoi(optarg));
632 foreground = TRUE; /* implied */
635 "Run-time debugging is not enabled. To enable it recompile\n"
636 "the server with --enable-debug configuration option.\n");
641 silc_log_debug(TRUE);
642 silc_log_debug_hexdump(TRUE);
643 silc_log_quick(TRUE);
644 foreground = TRUE; /* implied */
647 "Run-time debugging is not enabled. To enable it recompile\n"
648 "the server with --enable-debug configuration option.\n");
652 silcd_config_file = strdup(optarg);
659 * Key management options
662 opt_create_keypair = TRUE;
664 opt_keypath = strdup(optarg);
668 opt_pkcs = strdup(optarg);
672 opt_bits = atoi(optarg);
676 opt_identifier = strdup(optarg);
686 if (opt_create_keypair == TRUE) {
687 /* Create new key pair and exit */
688 char pubfile[256], prvfile[256];
690 memset(pubfile, 0, sizeof(pubfile));
691 memset(prvfile, 0, sizeof(prvfile));
692 snprintf(pubfile, sizeof(pubfile) - 1, "%s/silcd.pub", opt_keypath);
693 snprintf(prvfile, sizeof(prvfile) - 1, "%s/silcd.prv", opt_keypath);
695 silc_cipher_register_default();
696 silc_pkcs_register_default();
697 silc_hash_register_default();
698 silc_hmac_register_default();
699 silc_create_key_pair(opt_pkcs, opt_bits, pubfile, prvfile,
700 opt_identifier, "", NULL, NULL, NULL, FALSE);
704 /* Default configuration file */
705 if (!silcd_config_file)
706 silcd_config_file = strdup(SILC_SERVER_CONFIG_FILE);
708 /* Create SILC Server object */
709 ret = silc_server_alloc(&silcd);
713 /* Register default crypto stuff since we are going to need them
714 in the configuration file parsing phase */
715 silc_cipher_register_default();
716 silc_pkcs_register_default();
717 silc_hash_register_default();
718 silc_hmac_register_default();
720 /* Read configuration files */
721 silcd->config = silc_server_config_alloc(silcd_config_file);
722 if (silcd->config == NULL)
724 silcd->config_file = silcd_config_file;
726 /* Unregister the default crypto stuff so that configuration takes effect */
727 silc_cipher_unregister_all();
728 silc_pkcs_unregister_all();
729 silc_hash_unregister_all();
730 silc_hmac_unregister_all();
732 /* Check for another silcd running */
733 silc_server_checkpid(silcd);
735 /* Initialize the server */
736 if (silc_server_init(silcd) == FALSE)
739 /* Ignore some signals */
740 sa.sa_handler = SIG_IGN;
742 sigemptyset(&sa.sa_mask);
744 sigaction(SIGPIPE, &sa, NULL); /* Ignore broken pipes */
747 sigaction(SIGXFSZ, &sa, NULL); /* Ignore file limit exceeds */
750 sigaction(SIGXCPU, &sa, NULL); /* Ignore CPU time limit exceeds */
753 /* Handle specificly some other signals. */
754 sa.sa_handler = signal_handler;
755 sigaction(SIGHUP, &sa, NULL);
756 sigaction(SIGTERM, &sa, NULL);
757 sigaction(SIGINT, &sa, NULL);
758 sigaction(SIGUSR1, &sa, NULL);
759 silc_schedule_signal_register(silcd->schedule, SIGHUP, got_hup, NULL);
760 silc_schedule_signal_register(silcd->schedule, SIGTERM, stop_server, NULL);
761 silc_schedule_signal_register(silcd->schedule, SIGINT, stop_server, NULL);
762 silc_schedule_signal_register(silcd->schedule, SIGUSR1, dump_stats, NULL);
765 /* Before running the server, fork to background. */
766 silc_server_daemonise(silcd);
768 /* If set, write pid to file */
769 if (silcd->config->server_info->pid_file) {
770 char buf[10], *pidfile = silcd->config->server_info->pid_file;
772 snprintf(buf, sizeof(buf) - 1, "%d\n", getpid());
773 silc_file_writefile(pidfile, buf, strlen(buf));
776 silc_server_drop_privs(silcd);
779 /* Run the server. When this returns the server has been stopped
781 silc_server_run(silcd);
783 /* Stop the server and free it. */
784 silc_server_stop(silcd);
785 silc_server_config_destroy(silcd->config);
786 silc_server_free(silcd);
788 /* Flush the logging system */
789 silc_log_flush_all();
791 silc_free(silcd_config_file);
792 silc_free(opt_identifier);
793 silc_free(opt_keypath);
797 silc_free(silcd_config_file);
798 silc_free(opt_identifier);
799 silc_free(opt_keypath);