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"
68 #include "s_newconf.h"
71 #include "libcharybdis.h"
72 #include "patchlevel.h"
75 #include "ratbox_lib.h"
78 * Try and find the correct name to use with getrlimit() for setting the max.
79 * number of files allowed to be open by this process.
81 int _charybdis_data_version
= CHARYBDIS_DV
;
83 extern int ServerRunning
;
84 extern struct LocalUser meLocalUser
;
87 extern int maxconnections
; /* XXX */
90 * print_startup - print startup information
93 print_startup(int pid
)
95 inotice("now running in %s mode from %s as pid %d ...",
96 !server_state_foreground
? "background" : "foreground",
97 ConfigFileEntry
.dpath
, pid
);
99 /* let the parent process know the initialization was successful
101 if (!server_state_foreground
)
106 open("/dev/null", O_RDWR
);
112 ircd_log_cb(const char *str
)
114 ilog(L_MAIN
, "%s", str
);
118 ircd_restart_cb(const char *str
)
120 ilog(L_MAIN
, "%s", str
);
124 * Why EXIT_FAILURE here?
125 * Because if ircd_die_cb() is called it's because of a fatal
126 * error inside libcharybdis, and we don't know how to handle the
127 * exception, so it is logical to return a FAILURE exit code here.
131 ircd_die_cb(const char *str
)
133 /* Try to get the message out to currently logged in operators. */
134 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
, "Server panic! %s", str
);
135 inotice("server panic: %s", str
);
144 * inputs - boot_daemon flag
146 * side effects - if boot_daemon flag is not set, don't daemonize
151 #if defined(RLIMIT_NOFILE) && defined(HAVE_SYS_RESOURCE_H)
154 if(!getrlimit(RLIMIT_NOFILE
, &limit
))
156 limit
.rlim_cur
= limit
.rlim_max
; /* make soft limit the max */
157 if(setrlimit(RLIMIT_NOFILE
, &limit
) == -1)
159 fprintf(stderr
, "error setting max fd's to %ld\n", (long) limit
.rlim_cur
);
163 #endif /* RLIMIT_NOFILE */
180 if((pid
= fork()) < 0)
188 /* Wait for initialization to finish, successfully or
189 * unsuccessfully. Until this point the child may still
190 * write to stdout/stderr.
192 if (read(pip
[0], &c
, 1) > 0)
207 static int printVersion
= 0;
209 struct lgetopt myopts
[] = {
210 {"dlinefile", &ConfigFileEntry
.dlinefile
,
211 STRING
, "File to use for dlines.conf"},
212 {"configfile", &ConfigFileEntry
.configfile
,
213 STRING
, "File to use for ircd.conf"},
214 {"klinefile", &ConfigFileEntry
.klinefile
,
215 STRING
, "File to use for kline.conf"},
216 {"xlinefile", &ConfigFileEntry
.xlinefile
,
217 STRING
, "File to use for xline.conf"},
218 {"resvfile", &ConfigFileEntry
.resvfile
,
219 STRING
, "File to use for resv.conf"},
220 {"logfile", &logFileName
,
221 STRING
, "File to use for ircd.log"},
222 {"pidfile", &pidFileName
,
223 STRING
, "File to use for process ID"},
224 {"foreground", &server_state_foreground
,
225 YESNO
, "Run in foreground (don't detach)"},
226 {"version", &printVersion
,
227 YESNO
, "Print version and exit"},
228 {"conftest", &testing_conf
,
229 YESNO
, "Test the configuration files and exit"},
230 {"help", NULL
, USAGE
, "Print this text"},
231 {NULL
, NULL
, STRING
, NULL
},
237 struct timeval newtime
;
240 #ifdef HAVE_GETTIMEOFDAY
241 if(gettimeofday(&newtime
, NULL
) == -1)
243 ilog(L_MAIN
, "Clock Failure (%d)", errno
);
244 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
245 "Clock Failure (%d), TS can be corrupted", errno
);
247 restart("Clock Failure");
250 newtime
.tv_sec
= time(NULL
);
253 if(newtime
.tv_sec
< CurrentTime
)
254 rb_set_back_events(CurrentTime
- newtime
.tv_sec
);
256 SystemTime
.tv_sec
= newtime
.tv_sec
;
257 SystemTime
.tv_usec
= newtime
.tv_usec
;
261 check_rehash(void *unused
)
264 * Check to see whether we have to rehash the configuration ..
280 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
281 "Got signal SIGUSR1, reloading ircd motd file");
282 free_cachefile(user_motd
);
283 user_motd
= cache_file(MPATH
, "ircd.motd", 0);
289 charybdis_io_loop(void)
293 while (ServerRunning
)
295 /* Run pending events, then get the number of seconds to the next
299 delay
= rb_event_next();
300 if(delay
<= CurrentTime
)
309 * initalialize_global_set_options
313 * side effects - This sets all global set options needed
316 initialize_global_set_options(void)
318 memset(&GlobalSetOptions
, 0, sizeof(GlobalSetOptions
));
319 /* memset( &ConfigFileEntry, 0, sizeof(ConfigFileEntry)); */
321 GlobalSetOptions
.maxclients
= ServerInfo
.max_clients
;
322 GlobalSetOptions
.autoconn
= 1;
324 GlobalSetOptions
.spam_time
= MIN_JOIN_LEAVE_TIME
;
325 GlobalSetOptions
.spam_num
= MAX_JOIN_LEAVE_COUNT
;
327 if(ConfigFileEntry
.default_floodcount
)
328 GlobalSetOptions
.floodcount
= ConfigFileEntry
.default_floodcount
;
330 GlobalSetOptions
.floodcount
= 10;
332 split_servers
= ConfigChannel
.default_split_server_count
;
333 split_users
= ConfigChannel
.default_split_user_count
;
335 if(split_users
&& split_servers
336 && (ConfigChannel
.no_create_on_split
|| ConfigChannel
.no_join_on_split
))
342 GlobalSetOptions
.ident_timeout
= IDENT_TIMEOUT
;
344 strlcpy(GlobalSetOptions
.operstring
,
345 ConfigFileEntry
.default_operstring
,
346 sizeof(GlobalSetOptions
.operstring
));
347 strlcpy(GlobalSetOptions
.adminstring
,
348 ConfigFileEntry
.default_adminstring
,
349 sizeof(GlobalSetOptions
.adminstring
));
351 /* memset( &ConfigChannel, 0, sizeof(ConfigChannel)); */
353 /* End of global set options */
358 * initialize_server_capabs
364 initialize_server_capabs(void)
366 default_server_capabs
&= ~CAP_ZIP
;
373 * inputs - filename+path of pid file
375 * side effects - write the pid of the ircd to filename
378 write_pidfile(const char *filename
)
382 if((fb
= fopen(filename
, "w")))
384 unsigned int pid
= (unsigned int) getpid();
386 rb_snprintf(buff
, sizeof(buff
), "%u\n", pid
);
387 if((fputs(buff
, fb
) == -1))
389 ilog(L_MAIN
, "Error writing %u to pid file %s (%s)",
390 pid
, filename
, strerror(errno
));
397 ilog(L_MAIN
, "Error opening pid file %s", filename
);
404 * inputs - filename+path of pid file
406 * side effects - reads pid from pidfile and checks if ircd is in process
407 * list. if it is, gracefully exits
411 check_pidfile(const char *filename
)
417 /* Don't do logging here, since we don't have log() initialised */
418 if((fb
= fopen(filename
, "r")))
420 if(fgets(buff
, 20, fb
) != NULL
)
422 pidfromfile
= atoi(buff
);
423 if(!kill(pidfromfile
, 0))
425 printf("ircd: daemon is already running\n");
438 * side effects - setups corefile to system limits.
444 #ifdef HAVE_SYS_RESOURCE_H
445 struct rlimit rlim
; /* resource limits */
447 /* Set corefilesize to maximum */
448 if(!getrlimit(RLIMIT_CORE
, &rlim
))
450 rlim
.rlim_cur
= rlim
.rlim_max
;
451 setrlimit(RLIMIT_CORE
, &rlim
);
456 struct ev_entry
*check_splitmode_ev
= NULL
;
461 * Initializes the IRCd.
463 * Inputs - number of commandline args, args themselves
465 * Side Effects - this is where the ircd gets going right now
468 main(int argc
, char *argv
[])
472 /* Check to see if the user is running us as root, which is a nono */
475 fprintf(stderr
, "Don't run ircd as root!!!\n");
480 * save server boot time right away, so getrusage works correctly
484 * Setup corefile size immediately after boot -kre
489 /* It ain't random, but it ought to be a little harder to guess */
490 srand(SystemTime
.tv_sec
^ (SystemTime
.tv_usec
| (getpid() << 20)));
491 memset(&me
, 0, sizeof(me
));
492 memset(&meLocalUser
, 0, sizeof(meLocalUser
));
493 me
.localClient
= &meLocalUser
;
495 /* Make sure all lists are zeroed */
496 memset(&unknown_list
, 0, sizeof(unknown_list
));
497 memset(&lclient_list
, 0, sizeof(lclient_list
));
498 memset(&serv_list
, 0, sizeof(serv_list
));
499 memset(&global_serv_list
, 0, sizeof(global_serv_list
));
500 memset(&local_oper_list
, 0, sizeof(local_oper_list
));
501 memset(&oper_list
, 0, sizeof(oper_list
));
503 rb_dlinkAddTail(&me
, &me
.node
, &global_client_list
);
505 memset((void *) &Count
, 0, sizeof(Count
));
506 memset((void *) &ServerInfo
, 0, sizeof(ServerInfo
));
507 memset((void *) &AdminInfo
, 0, sizeof(AdminInfo
));
509 /* Initialise the channel capability usage counts... */
510 init_chcap_usage_counts();
512 ConfigFileEntry
.dpath
= DPATH
;
513 ConfigFileEntry
.configfile
= CPATH
; /* Server configuration file */
514 ConfigFileEntry
.klinefile
= KPATH
; /* Server kline file */
515 ConfigFileEntry
.dlinefile
= DLPATH
; /* dline file */
516 ConfigFileEntry
.xlinefile
= XPATH
;
517 ConfigFileEntry
.resvfile
= RESVPATH
;
518 ConfigFileEntry
.connect_timeout
= 30; /* Default to 30 */
520 umask(077); /* better safe than sorry --SRB */
522 parseargs(&argc
, &argv
, myopts
);
526 printf("ircd: version %s\n", ircd_version
);
530 if(chdir(ConfigFileEntry
.dpath
))
532 fprintf(stderr
, "Unable to chdir to %s: %s\n", ConfigFileEntry
.dpath
, strerror(errno
));
539 server_state_foreground
= 1;
543 server_state_foreground
= 1;
545 /* Make sure fd 0, 1 and 2 are in use -- jilles */
548 fd
= open("/dev/null", O_RDWR
);
549 } while (fd
< 2 && fd
!= -1);
555 /* Check if there is pidfile and daemon already running */
558 check_pidfile(pidFileName
);
560 if(!server_state_foreground
)
562 inotice("starting %s ...", ircd_version
);
565 /* Init the event subsystem */
567 libcharybdis_init(ircd_log_cb
, restart
, ircd_die_cb
);
568 rb_lib_init(ircd_log_cb
, restart
, ircd_die_cb
, !server_state_foreground
, maxconnections
, DNODE_HEAP_SIZE
, FD_HEAP_SIZE
);
575 clear_scache_hash_table(); /* server cache name table */
590 #ifndef STATIC_MODULES
591 load_core_modules(1);
593 init_auth(); /* Initialise the auth code */
594 init_resolver(); /* Needs to be setup before the io loop */
597 fprintf(stderr
, "\nBeginning config test\n");
598 read_conf_files(YES
); /* cold start init conf files */
600 #ifndef STATIC_MODULES
602 mod_add_path(MODULE_DIR
);
603 mod_add_path(MODULE_DIR
"/autoload");
606 initialize_server_capabs(); /* Set up default_server_capabs */
607 initialize_global_set_options();
609 if(ServerInfo
.name
== NULL
)
611 ierror("no server name specified in serverinfo block.");
614 strlcpy(me
.name
, ServerInfo
.name
, sizeof(me
.name
));
616 if(ServerInfo
.sid
[0] == '\0')
618 ierror("no server sid specified in serverinfo block.");
621 strcpy(me
.id
, ServerInfo
.sid
);
624 /* serverinfo{} description must exist. If not, error out. */
625 if(ServerInfo
.description
== NULL
)
627 ierror("no server description specified in serverinfo block.");
630 strlcpy(me
.info
, ServerInfo
.description
, sizeof(me
.info
));
634 fprintf(stderr
, "\nConfig testing complete.\n");
636 return 0; /* Why? We want the launcher to exit out. */
643 startup_time
= CurrentTime
;
644 add_to_client_hash(me
.name
, &me
);
645 add_to_id_hash(me
.id
, &me
);
646 me
.serv
->nameinfo
= scache_connect(me
.name
, me
.info
, 0);
648 rb_dlinkAddAlloc(&me
, &global_serv_list
);
650 construct_umodebuf();
653 write_pidfile(pidFileName
);
657 ilog(L_MAIN
, "Server Ready");
659 eventAddIsh("cleanup_glines", cleanup_glines
, NULL
, CLEANUP_GLINES_TIME
);
661 /* We want try_connections to be called as soon as possible now! -- adrian */
662 /* No, 'cause after a restart it would cause all sorts of nick collides */
663 /* um. by waiting even longer, that just means we have even *more*
664 * nick collisions. what a stupid idea. set an event for the IO loop --fl
666 eventAddIsh("try_connections", try_connections
, NULL
, STARTUP_CONNECTIONS_TIME
);
667 eventAddOnce("try_connections_startup", try_connections
, NULL
, 0);
669 eventAddIsh("collect_zipstats", collect_zipstats
, NULL
, ZIPSTATS_TIME
);
671 /* Setup the timeout check. I'll shift it later :) -- adrian */
672 eventAddIsh("rb_checktimeouts", rb_checktimeouts
, NULL
, 1);
674 eventAdd("check_rehash", check_rehash
, NULL
, 1);
677 check_splitmode_ev
= rb_event_add("check_splitmode", check_splitmode
, NULL
, 2);
681 print_startup(getpid());