2 * ircd-ratbox: A slightly useful ircd.
3 * ircd.c: Starts up and runs the ircd.
5 * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
6 * Copyright (C) 1996-2002 Hybrid Development Team
7 * Copyright (C) 2002-2005 ircd-ratbox development team
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; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
24 * $Id: ircd.c 3380 2007-04-03 22:25:11Z jilles $
39 #include "irc_string.h"
40 #include "ircd_signal.h"
41 #include "sprintf_irc.h"
43 #include "msg.h" /* msgtab */
53 #include "s_serv.h" /* try_connections */
58 #include "supported.h"
63 #include "ircd_getopt.h"
69 #include "s_newconf.h"
72 #include "libcharybdis.h"
73 #include "patchlevel.h"
77 * Try and find the correct name to use with getrlimit() for setting the max.
78 * number of files allowed to be open by this process.
80 int _charybdis_data_version
= CHARYBDIS_DV
;
82 extern int ServerRunning
;
83 extern struct LocalUser meLocalUser
;
87 * print_startup - print startup information
90 print_startup(int pid
)
92 inotice("now running in %s mode from %s as pid %d ...",
93 !server_state_foreground
? "background" : "foreground",
94 ConfigFileEntry
.dpath
, pid
);
96 /* let the parent process know the initialization was successful
98 if (!server_state_foreground
)
103 open("/dev/null", O_RDWR
);
109 ircd_log_cb(const char *str
)
111 ilog(L_MAIN
, "%s", str
);
115 * Why EXIT_FAILURE here?
116 * Because if ircd_die_cb() is called it's because of a fatal
117 * error inside libcharybdis, and we don't know how to handle the
118 * exception, so it is logical to return a FAILURE exit code here.
122 ircd_die_cb(const char *str
)
124 /* Try to get the message out to currently logged in operators. */
125 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
, "Server panic! %s", str
);
126 inotice("server panic: %s", str
);
135 * inputs - boot_daemon flag
137 * side effects - if boot_daemon flag is not set, don't daemonize
142 #if defined(RLIMIT_NOFILE) && defined(HAVE_SYS_RESOURCE_H)
145 if(!getrlimit(RLIMIT_NOFILE
, &limit
))
147 limit
.rlim_cur
= limit
.rlim_max
; /* make soft limit the max */
148 if(setrlimit(RLIMIT_NOFILE
, &limit
) == -1)
150 fprintf(stderr
, "error setting max fd's to %ld\n", (long) limit
.rlim_cur
);
154 #endif /* RLIMIT_NOFILE */
171 if((pid
= fork()) < 0)
179 /* Wait for initialization to finish, successfully or
180 * unsuccessfully. Until this point the child may still
181 * write to stdout/stderr.
183 if (read(pip
[0], &c
, 1) > 0)
198 static int printVersion
= 0;
200 struct lgetopt myopts
[] = {
201 {"dlinefile", &ConfigFileEntry
.dlinefile
,
202 STRING
, "File to use for dlines.conf"},
203 {"configfile", &ConfigFileEntry
.configfile
,
204 STRING
, "File to use for ircd.conf"},
205 {"klinefile", &ConfigFileEntry
.klinefile
,
206 STRING
, "File to use for kline.conf"},
207 {"xlinefile", &ConfigFileEntry
.xlinefile
,
208 STRING
, "File to use for xline.conf"},
209 {"resvfile", &ConfigFileEntry
.resvfile
,
210 STRING
, "File to use for resv.conf"},
211 {"logfile", &logFileName
,
212 STRING
, "File to use for ircd.log"},
213 {"pidfile", &pidFileName
,
214 STRING
, "File to use for process ID"},
215 {"foreground", &server_state_foreground
,
216 YESNO
, "Run in foreground (don't detach)"},
217 {"version", &printVersion
,
218 YESNO
, "Print version and exit"},
219 {"conftest", &testing_conf
,
220 YESNO
, "Test the configuration files and exit"},
221 {"help", NULL
, USAGE
, "Print this text"},
222 {NULL
, NULL
, STRING
, NULL
},
228 struct timeval newtime
;
231 #ifdef HAVE_GETTIMEOFDAY
232 if(gettimeofday(&newtime
, NULL
) == -1)
234 ilog(L_MAIN
, "Clock Failure (%d)", errno
);
235 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
236 "Clock Failure (%d), TS can be corrupted", errno
);
238 restart("Clock Failure");
241 newtime
.tv_sec
= time(NULL
);
244 if(newtime
.tv_sec
< CurrentTime
)
245 set_back_events(CurrentTime
- newtime
.tv_sec
);
247 SystemTime
.tv_sec
= newtime
.tv_sec
;
248 SystemTime
.tv_usec
= newtime
.tv_usec
;
252 check_rehash(void *unused
)
255 * Check to see whether we have to rehash the configuration ..
271 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
272 "Got signal SIGUSR1, reloading ircd motd file");
273 free_cachefile(user_motd
);
274 user_motd
= cache_file(MPATH
, "ircd.motd", 0);
280 charybdis_io_loop(void)
284 while (ServerRunning
)
286 /* Run pending events, then get the number of seconds to the next
290 delay
= eventNextTime();
291 if(delay
<= CurrentTime
)
300 * initalialize_global_set_options
304 * side effects - This sets all global set options needed
307 initialize_global_set_options(void)
309 memset(&GlobalSetOptions
, 0, sizeof(GlobalSetOptions
));
310 /* memset( &ConfigFileEntry, 0, sizeof(ConfigFileEntry)); */
312 GlobalSetOptions
.maxclients
= ServerInfo
.max_clients
;
313 GlobalSetOptions
.autoconn
= 1;
315 GlobalSetOptions
.spam_time
= MIN_JOIN_LEAVE_TIME
;
316 GlobalSetOptions
.spam_num
= MAX_JOIN_LEAVE_COUNT
;
318 if(ConfigFileEntry
.default_floodcount
)
319 GlobalSetOptions
.floodcount
= ConfigFileEntry
.default_floodcount
;
321 GlobalSetOptions
.floodcount
= 10;
323 split_servers
= ConfigChannel
.default_split_server_count
;
324 split_users
= ConfigChannel
.default_split_user_count
;
326 if(split_users
&& split_servers
327 && (ConfigChannel
.no_create_on_split
|| ConfigChannel
.no_join_on_split
))
333 GlobalSetOptions
.ident_timeout
= IDENT_TIMEOUT
;
335 strlcpy(GlobalSetOptions
.operstring
,
336 ConfigFileEntry
.default_operstring
,
337 sizeof(GlobalSetOptions
.operstring
));
338 strlcpy(GlobalSetOptions
.adminstring
,
339 ConfigFileEntry
.default_adminstring
,
340 sizeof(GlobalSetOptions
.adminstring
));
342 /* memset( &ConfigChannel, 0, sizeof(ConfigChannel)); */
344 /* End of global set options */
349 * initialize_server_capabs
355 initialize_server_capabs(void)
357 default_server_capabs
&= ~CAP_ZIP
;
364 * inputs - filename+path of pid file
366 * side effects - write the pid of the ircd to filename
369 write_pidfile(const char *filename
)
373 if((fb
= fopen(filename
, "w")))
375 unsigned int pid
= (unsigned int) getpid();
377 ircsnprintf(buff
, sizeof(buff
), "%u\n", pid
);
378 if((fputs(buff
, fb
) == -1))
380 ilog(L_MAIN
, "Error writing %u to pid file %s (%s)",
381 pid
, filename
, strerror(errno
));
388 ilog(L_MAIN
, "Error opening pid file %s", filename
);
395 * inputs - filename+path of pid file
397 * side effects - reads pid from pidfile and checks if ircd is in process
398 * list. if it is, gracefully exits
402 check_pidfile(const char *filename
)
408 /* Don't do logging here, since we don't have log() initialised */
409 if((fb
= fopen(filename
, "r")))
411 if(fgets(buff
, 20, fb
) != NULL
)
413 pidfromfile
= atoi(buff
);
414 if(!kill(pidfromfile
, 0))
416 printf("ircd: daemon is already running\n");
429 * side effects - setups corefile to system limits.
435 #ifdef HAVE_SYS_RESOURCE_H
436 struct rlimit rlim
; /* resource limits */
438 /* Set corefilesize to maximum */
439 if(!getrlimit(RLIMIT_CORE
, &rlim
))
441 rlim
.rlim_cur
= rlim
.rlim_max
;
442 setrlimit(RLIMIT_CORE
, &rlim
);
450 * Initializes the IRCd.
452 * Inputs - number of commandline args, args themselves
454 * Side Effects - this is where the ircd gets going right now
457 main(int argc
, char *argv
[])
461 /* Check to see if the user is running us as root, which is a nono */
464 fprintf(stderr
, "Don't run ircd as root!!!\n");
469 * save server boot time right away, so getrusage works correctly
473 * Setup corefile size immediately after boot -kre
478 /* It ain't random, but it ought to be a little harder to guess */
479 srand(SystemTime
.tv_sec
^ (SystemTime
.tv_usec
| (getpid() << 20)));
480 memset(&me
, 0, sizeof(me
));
481 memset(&meLocalUser
, 0, sizeof(meLocalUser
));
482 me
.localClient
= &meLocalUser
;
484 /* Make sure all lists are zeroed */
485 memset(&unknown_list
, 0, sizeof(unknown_list
));
486 memset(&lclient_list
, 0, sizeof(lclient_list
));
487 memset(&serv_list
, 0, sizeof(serv_list
));
488 memset(&global_serv_list
, 0, sizeof(global_serv_list
));
489 memset(&local_oper_list
, 0, sizeof(local_oper_list
));
490 memset(&oper_list
, 0, sizeof(oper_list
));
492 dlinkAddTail(&me
, &me
.node
, &global_client_list
);
494 memset((void *) &Count
, 0, sizeof(Count
));
495 memset((void *) &ServerInfo
, 0, sizeof(ServerInfo
));
496 memset((void *) &AdminInfo
, 0, sizeof(AdminInfo
));
498 /* Initialise the channel capability usage counts... */
499 init_chcap_usage_counts();
501 ConfigFileEntry
.dpath
= DPATH
;
502 ConfigFileEntry
.configfile
= CPATH
; /* Server configuration file */
503 ConfigFileEntry
.klinefile
= KPATH
; /* Server kline file */
504 ConfigFileEntry
.dlinefile
= DLPATH
; /* dline file */
505 ConfigFileEntry
.xlinefile
= XPATH
;
506 ConfigFileEntry
.resvfile
= RESVPATH
;
507 ConfigFileEntry
.connect_timeout
= 30; /* Default to 30 */
509 umask(077); /* better safe than sorry --SRB */
511 parseargs(&argc
, &argv
, myopts
);
515 printf("ircd: version %s\n", ircd_version
);
519 if(chdir(ConfigFileEntry
.dpath
))
521 fprintf(stderr
, "Unable to chdir to %s: %s\n", ConfigFileEntry
.dpath
, strerror(errno
));
528 server_state_foreground
= 1;
532 server_state_foreground
= 1;
534 /* Make sure fd 0, 1 and 2 are in use -- jilles */
537 fd
= open("/dev/null", O_RDWR
);
538 } while (fd
< 2 && fd
!= -1);
544 /* Check if there is pidfile and daemon already running */
547 check_pidfile(pidFileName
);
549 if(!server_state_foreground
)
551 inotice("starting %s ...", ircd_version
);
554 /* Init the event subsystem */
556 libcharybdis_init(ircd_log_cb
, restart
, ircd_die_cb
);
559 if(!server_state_foreground
)
570 clear_scache_hash_table(); /* server cache name table */
585 #ifndef STATIC_MODULES
586 load_core_modules(1);
588 init_auth(); /* Initialise the auth code */
589 init_resolver(); /* Needs to be setup before the io loop */
592 fprintf(stderr
, "\nBeginning config test\n");
593 read_conf_files(YES
); /* cold start init conf files */
595 #ifndef STATIC_MODULES
597 mod_add_path(MODULE_DIR
);
598 mod_add_path(MODULE_DIR
"/autoload");
601 initialize_server_capabs(); /* Set up default_server_capabs */
602 initialize_global_set_options();
604 if(ServerInfo
.name
== NULL
)
606 ierror("no server name specified in serverinfo block.");
609 strlcpy(me
.name
, ServerInfo
.name
, sizeof(me
.name
));
611 if(ServerInfo
.sid
[0] == '\0')
613 ierror("no server sid specified in serverinfo block.");
616 strcpy(me
.id
, ServerInfo
.sid
);
619 /* serverinfo{} description must exist. If not, error out. */
620 if(ServerInfo
.description
== NULL
)
622 ierror("no server description specified in serverinfo block.");
625 strlcpy(me
.info
, ServerInfo
.description
, sizeof(me
.info
));
629 fprintf(stderr
, "\nConfig testing complete.\n");
631 return 0; /* Why? We want the launcher to exit out. */
638 startup_time
= CurrentTime
;
639 add_to_client_hash(me
.name
, &me
);
640 add_to_id_hash(me
.id
, &me
);
641 me
.serv
->nameinfo
= scache_connect(me
.name
, me
.info
, 0);
643 dlinkAddAlloc(&me
, &global_serv_list
);
645 construct_umodebuf();
648 write_pidfile(pidFileName
);
652 ilog(L_MAIN
, "Server Ready");
654 eventAddIsh("cleanup_glines", cleanup_glines
, NULL
, CLEANUP_GLINES_TIME
);
656 /* We want try_connections to be called as soon as possible now! -- adrian */
657 /* No, 'cause after a restart it would cause all sorts of nick collides */
658 /* um. by waiting even longer, that just means we have even *more*
659 * nick collisions. what a stupid idea. set an event for the IO loop --fl
661 eventAddIsh("try_connections", try_connections
, NULL
, STARTUP_CONNECTIONS_TIME
);
662 eventAddOnce("try_connections_startup", try_connections
, NULL
, 0);
664 eventAddIsh("collect_zipstats", collect_zipstats
, NULL
, ZIPSTATS_TIME
);
666 /* Setup the timeout check. I'll shift it later :) -- adrian */
667 eventAddIsh("comm_checktimeouts", comm_checktimeouts
, NULL
, 1);
669 eventAdd("check_rehash", check_rehash
, NULL
, 1);
672 eventAdd("check_splitmode", check_splitmode
, NULL
, 2);
676 print_startup(getpid());