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 $
37 #include "irc_string.h"
38 #include "ircd_signal.h"
39 #include "sprintf_irc.h"
41 #include "msg.h" /* msgtab */
50 #include "s_serv.h" /* try_connections */
55 #include "supported.h"
59 #include "ircd_getopt.h"
63 #include "s_newconf.h"
66 #include "patchlevel.h"
69 #include "ratbox_lib.h"
72 * Try and find the correct name to use with getrlimit() for setting the max.
73 * number of files allowed to be open by this process.
75 int _charybdis_data_version
= CHARYBDIS_DV
;
77 extern int ServerRunning
;
78 extern struct LocalUser meLocalUser
;
81 int maxconnections
; /* XXX */
84 * print_startup - print startup information
87 print_startup(int pid
)
89 inotice("now running in %s mode from %s as pid %d ...",
90 !server_state_foreground
? "background" : "foreground",
91 ConfigFileEntry
.dpath
, pid
);
93 /* let the parent process know the initialization was successful
95 if (!server_state_foreground
)
100 open("/dev/null", O_RDWR
);
106 ircd_log_cb(const char *str
)
108 ilog(L_MAIN
, "%s", str
);
112 ircd_restart_cb(const char *str
)
118 * Why EXIT_FAILURE here?
119 * Because if ircd_die_cb() is called it's because of a fatal
120 * error inside libcharybdis, and we don't know how to handle the
121 * exception, so it is logical to return a FAILURE exit code here.
125 ircd_die_cb(const char *str
)
127 /* Try to get the message out to currently logged in operators. */
128 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
, "Server panic! %s", str
);
129 inotice("server panic: %s", str
);
138 * inputs - boot_daemon flag
140 * side effects - if boot_daemon flag is not set, don't daemonize
145 #if defined(RLIMIT_NOFILE) && defined(HAVE_SYS_RESOURCE_H)
148 if(!getrlimit(RLIMIT_NOFILE
, &limit
))
150 limit
.rlim_cur
= limit
.rlim_max
; /* make soft limit the max */
151 if(setrlimit(RLIMIT_NOFILE
, &limit
) == -1)
153 fprintf(stderr
, "error setting max fd's to %ld\n", (long) limit
.rlim_cur
);
158 maxconnections
= limit
.rlim_cur
;
159 #endif /* RLIMIT_NOFILE */
176 if((pid
= fork()) < 0)
184 /* Wait for initialization to finish, successfully or
185 * unsuccessfully. Until this point the child may still
186 * write to stdout/stderr.
188 if (read(pip
[0], &c
, 1) > 0)
203 static int printVersion
= 0;
205 struct lgetopt myopts
[] = {
206 {"dlinefile", &ConfigFileEntry
.dlinefile
,
207 STRING
, "File to use for dlines.conf"},
208 {"configfile", &ConfigFileEntry
.configfile
,
209 STRING
, "File to use for ircd.conf"},
210 {"klinefile", &ConfigFileEntry
.klinefile
,
211 STRING
, "File to use for kline.conf"},
212 {"xlinefile", &ConfigFileEntry
.xlinefile
,
213 STRING
, "File to use for xline.conf"},
214 {"resvfile", &ConfigFileEntry
.resvfile
,
215 STRING
, "File to use for resv.conf"},
216 {"logfile", &logFileName
,
217 STRING
, "File to use for ircd.log"},
218 {"pidfile", &pidFileName
,
219 STRING
, "File to use for process ID"},
220 {"foreground", &server_state_foreground
,
221 YESNO
, "Run in foreground (don't detach)"},
222 {"version", &printVersion
,
223 YESNO
, "Print version and exit"},
224 {"conftest", &testing_conf
,
225 YESNO
, "Test the configuration files and exit"},
226 {"help", NULL
, USAGE
, "Print this text"},
227 {NULL
, NULL
, STRING
, NULL
},
231 check_rehash(void *unused
)
234 * Check to see whether we have to rehash the configuration ..
250 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
251 "Got signal SIGUSR1, reloading ircd motd file");
252 free_cachefile(user_motd
);
253 user_motd
= cache_file(MPATH
, "ircd.motd", 0);
259 * initalialize_global_set_options
263 * side effects - This sets all global set options needed
266 initialize_global_set_options(void)
268 memset(&GlobalSetOptions
, 0, sizeof(GlobalSetOptions
));
269 /* memset( &ConfigFileEntry, 0, sizeof(ConfigFileEntry)); */
271 GlobalSetOptions
.maxclients
= ServerInfo
.max_clients
;
272 GlobalSetOptions
.autoconn
= 1;
274 GlobalSetOptions
.spam_time
= MIN_JOIN_LEAVE_TIME
;
275 GlobalSetOptions
.spam_num
= MAX_JOIN_LEAVE_COUNT
;
277 if(ConfigFileEntry
.default_floodcount
)
278 GlobalSetOptions
.floodcount
= ConfigFileEntry
.default_floodcount
;
280 GlobalSetOptions
.floodcount
= 10;
282 split_servers
= ConfigChannel
.default_split_server_count
;
283 split_users
= ConfigChannel
.default_split_user_count
;
285 if(split_users
&& split_servers
286 && (ConfigChannel
.no_create_on_split
|| ConfigChannel
.no_join_on_split
))
292 GlobalSetOptions
.ident_timeout
= IDENT_TIMEOUT
;
294 strlcpy(GlobalSetOptions
.operstring
,
295 ConfigFileEntry
.default_operstring
,
296 sizeof(GlobalSetOptions
.operstring
));
297 strlcpy(GlobalSetOptions
.adminstring
,
298 ConfigFileEntry
.default_adminstring
,
299 sizeof(GlobalSetOptions
.adminstring
));
301 /* memset( &ConfigChannel, 0, sizeof(ConfigChannel)); */
303 /* End of global set options */
308 * initialize_server_capabs
314 initialize_server_capabs(void)
316 default_server_capabs
&= ~CAP_ZIP
;
323 * inputs - filename+path of pid file
325 * side effects - write the pid of the ircd to filename
328 write_pidfile(const char *filename
)
332 if((fb
= fopen(filename
, "w")))
334 unsigned int pid
= (unsigned int) getpid();
336 rb_snprintf(buff
, sizeof(buff
), "%u\n", pid
);
337 if((fputs(buff
, fb
) == -1))
339 ilog(L_MAIN
, "Error writing %u to pid file %s (%s)",
340 pid
, filename
, strerror(errno
));
347 ilog(L_MAIN
, "Error opening pid file %s", filename
);
354 * inputs - filename+path of pid file
356 * side effects - reads pid from pidfile and checks if ircd is in process
357 * list. if it is, gracefully exits
361 check_pidfile(const char *filename
)
367 /* Don't do logging here, since we don't have log() initialised */
368 if((fb
= fopen(filename
, "r")))
370 if(fgets(buff
, 20, fb
) != NULL
)
372 pidfromfile
= atoi(buff
);
373 if(!kill(pidfromfile
, 0))
375 printf("ircd: daemon is already running\n");
388 * side effects - setups corefile to system limits.
394 #ifdef HAVE_SYS_RESOURCE_H
395 struct rlimit rlim
; /* resource limits */
397 /* Set corefilesize to maximum */
398 if(!getrlimit(RLIMIT_CORE
, &rlim
))
400 rlim
.rlim_cur
= rlim
.rlim_max
;
401 setrlimit(RLIMIT_CORE
, &rlim
);
406 struct ev_entry
*check_splitmode_ev
= NULL
;
411 * Initializes the IRCd.
413 * Inputs - number of commandline args, args themselves
415 * Side Effects - this is where the ircd gets going right now
418 main(int argc
, char *argv
[])
422 /* Check to see if the user is running us as root, which is a nono */
425 fprintf(stderr
, "Don't run ircd as root!!!\n");
430 * Setup corefile size immediately after boot -kre
435 /* It ain't random, but it ought to be a little harder to guess */
436 srand(SystemTime
.tv_sec
^ (SystemTime
.tv_usec
| (getpid() << 20)));
437 memset(&me
, 0, sizeof(me
));
438 memset(&meLocalUser
, 0, sizeof(meLocalUser
));
439 me
.localClient
= &meLocalUser
;
441 /* Make sure all lists are zeroed */
442 memset(&unknown_list
, 0, sizeof(unknown_list
));
443 memset(&lclient_list
, 0, sizeof(lclient_list
));
444 memset(&serv_list
, 0, sizeof(serv_list
));
445 memset(&global_serv_list
, 0, sizeof(global_serv_list
));
446 memset(&local_oper_list
, 0, sizeof(local_oper_list
));
447 memset(&oper_list
, 0, sizeof(oper_list
));
449 rb_dlinkAddTail(&me
, &me
.node
, &global_client_list
);
451 memset((void *) &Count
, 0, sizeof(Count
));
452 memset((void *) &ServerInfo
, 0, sizeof(ServerInfo
));
453 memset((void *) &AdminInfo
, 0, sizeof(AdminInfo
));
455 /* Initialise the channel capability usage counts... */
456 init_chcap_usage_counts();
458 ConfigFileEntry
.dpath
= DPATH
;
459 ConfigFileEntry
.configfile
= CPATH
; /* Server configuration file */
460 ConfigFileEntry
.klinefile
= KPATH
; /* Server kline file */
461 ConfigFileEntry
.dlinefile
= DLPATH
; /* dline file */
462 ConfigFileEntry
.xlinefile
= XPATH
;
463 ConfigFileEntry
.resvfile
= RESVPATH
;
464 ConfigFileEntry
.connect_timeout
= 30; /* Default to 30 */
466 umask(077); /* better safe than sorry --SRB */
468 parseargs(&argc
, &argv
, myopts
);
472 printf("ircd: version %s\n", ircd_version
);
476 if(chdir(ConfigFileEntry
.dpath
))
478 fprintf(stderr
, "Unable to chdir to %s: %s\n", ConfigFileEntry
.dpath
, strerror(errno
));
485 server_state_foreground
= 1;
489 server_state_foreground
= 1;
491 /* Make sure fd 0, 1 and 2 are in use -- jilles */
494 fd
= open("/dev/null", O_RDWR
);
495 } while (fd
< 2 && fd
!= -1);
501 /* Check if there is pidfile and daemon already running */
504 check_pidfile(pidFileName
);
506 if(!server_state_foreground
)
508 inotice("starting %s ...", ircd_version
);
511 /* Init the event subsystem */
513 rb_lib_init(ircd_log_cb
, ircd_restart_cb
, ircd_die_cb
, !server_state_foreground
, maxconnections
, DNODE_HEAP_SIZE
, FD_HEAP_SIZE
);
514 rb_linebuf_init(LINEBUF_HEAP_SIZE
);
521 clear_scache_hash_table(); /* server cache name table */
536 #ifndef STATIC_MODULES
537 load_core_modules(1);
539 init_auth(); /* Initialise the auth code */
540 init_resolver(); /* Needs to be setup before the io loop */
543 fprintf(stderr
, "\nBeginning config test\n");
544 read_conf_files(YES
); /* cold start init conf files */
546 #ifndef STATIC_MODULES
548 mod_add_path(MODULE_DIR
);
549 mod_add_path(MODULE_DIR
"/autoload");
552 initialize_server_capabs(); /* Set up default_server_capabs */
553 initialize_global_set_options();
555 if(ServerInfo
.name
== NULL
)
557 ierror("no server name specified in serverinfo block.");
560 strlcpy(me
.name
, ServerInfo
.name
, sizeof(me
.name
));
562 if(ServerInfo
.sid
[0] == '\0')
564 ierror("no server sid specified in serverinfo block.");
567 strcpy(me
.id
, ServerInfo
.sid
);
570 /* serverinfo{} description must exist. If not, error out. */
571 if(ServerInfo
.description
== NULL
)
573 ierror("no server description specified in serverinfo block.");
576 strlcpy(me
.info
, ServerInfo
.description
, sizeof(me
.info
));
580 fprintf(stderr
, "\nConfig testing complete.\n");
582 return 0; /* Why? We want the launcher to exit out. */
589 startup_time
= rb_current_time();
590 add_to_client_hash(me
.name
, &me
);
591 add_to_id_hash(me
.id
, &me
);
592 me
.serv
->nameinfo
= scache_connect(me
.name
, me
.info
, 0);
594 rb_dlinkAddAlloc(&me
, &global_serv_list
);
596 construct_umodebuf();
599 write_pidfile(pidFileName
);
603 ilog(L_MAIN
, "Server Ready");
605 rb_event_addish("cleanup_glines", cleanup_glines
, NULL
, CLEANUP_GLINES_TIME
);
607 /* We want try_connections to be called as soon as possible now! -- adrian */
608 /* No, 'cause after a restart it would cause all sorts of nick collides */
609 /* um. by waiting even longer, that just means we have even *more*
610 * nick collisions. what a stupid idea. set an event for the IO loop --fl
612 rb_event_addish("try_connections", try_connections
, NULL
, STARTUP_CONNECTIONS_TIME
);
613 rb_event_addonce("try_connections_startup", try_connections
, NULL
, 0);
615 rb_event_addish("collect_zipstats", collect_zipstats
, NULL
, ZIPSTATS_TIME
);
617 /* Setup the timeout check. I'll shift it later :) -- adrian */
618 rb_event_addish("rb_checktimeouts", rb_checktimeouts
, NULL
, 1);
620 rb_event_add("check_rehash", check_rehash
, NULL
, 1);
623 check_splitmode_ev
= rb_event_add("check_splitmode", check_splitmode
, NULL
, 2);
627 print_startup(getpid());