]>
jfr.im git - irc/evilnet/x3.git/blob - src/main.c
2 * Copyright 2000-2004 srvx Development Team
4 * This file is part of srvx.
6 * srvx is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with srvx; if not, write to the Free Software Foundation,
18 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
21 #define PID_FILE "srvx.pid"
41 #ifdef HAVE_SYS_RESOURCE_H
42 #include <sys/resource.h>
44 #ifdef HAVE_NETINET_IN_H
45 #include <netinet/in.h>
47 #ifdef HAVE_SYS_SOCKET_H
48 #include <sys/socket.h>
50 #ifdef HAVE_SYS_WAIT_H
55 #define SIGCHLD SIGCLD
58 extern FILE *replay_file
;
60 time_t boot_time
, burst_begin
, now
;
61 unsigned long burst_length
;
62 struct log_type
*MAIN_LOG
;
64 int quit_services
, max_cycles
;
66 char *services_config
= "srvx.conf";
71 struct cManagerNode cManager
;
73 struct policer_params
*oper_policer_params
, *luser_policer_params
, *god_policer_params
;
75 static const struct message_entry msgtab
[] = {
76 { "MSG_NONE", "None" },
79 { "MSG_NEVER", "Never" },
80 { "MSG_SERVICE_IMMUNE", "$b%s$b may not be kicked, killed, banned, or deopped." },
81 { "MSG_SERVICE_PRIVILEGED", "$b%s$b is a privileged service." },
82 { "MSG_NOT_A_SERVICE", "$b%s$b is not a service bot." },
83 { "MSG_COMMAND_UNKNOWN", "$b%s$b is an unknown command." },
84 { "MSG_COMMAND_PRIVILEGED", "$b%s$b is a privileged command." },
85 { "MSG_COMMAND_DISABLED", "$b%s$b is a disabled command." },
86 { "MSG_SETTING_PRIVILEGED", "$b%s$b is a privileged setting." },
87 { "MSG_AUTHENTICATE", "You must first authenticate with $b$N$b." },
88 { "MSG_USER_AUTHENTICATE", "%s must first authenticate with $b$N$b." },
89 { "MSG_SET_EMAIL_ADDR", "You must first set your account's email address. (Contact network staff if you cannot auth to your account.)" },
90 { "MSG_HANDLE_UNKNOWN", "Account $b%s$b has not been registered." },
91 { "MSG_NICK_UNKNOWN", "User with nick $b%s$b does not exist." },
92 { "MSG_CHANNEL_UNKNOWN", "Channel with name $b%s$b does not exist." },
93 { "MSG_SERVER_UNKNOWN", "Server with name $b%s$b does not exist or is not linked." },
94 { "MSG_MODULE_UNKNOWN", "No module has been registered with name $b%s$b." },
95 { "MSG_INVALID_MODES", "$b%s$b is an invalid set of channel modes." },
96 { "MSG_INVALID_GLINE", "Invalid G-line '%s'." },
97 { "MSG_INVALID_DURATION", "Invalid time span '%s'." },
98 { "MSG_NOT_TARGET_NAME", "You must provide the name of a channel or user." },
99 { "MSG_NOT_CHANNEL_NAME", "You must provide a valid channel name." },
100 { "MSG_INVALID_CHANNEL", "You must provide the name of a channel that exists." },
101 { "MSG_CHANNEL_ABSENT", "You aren't currently in $b%s$b." },
102 { "MSG_CHANNEL_USER_ABSENT", "$b%s$b isn't currently in $b%s$b." },
103 { "MSG_MISSING_PARAMS", "$b%s$b requires more parameters." },
104 { "MSG_DEPRECATED_COMMAND", "The $b%s$b command has been deprecated, and will be removed in the future; please use $b%s$b instead." },
105 { "MSG_OPER_SUSPENDED", "Your $b$O$b access has been suspended." },
106 { "MSG_USER_OUTRANKED", "$b%s$b outranks you (command has no effect)." },
107 { "MSG_STUPID_ACCESS_CHANGE", "Please ask someone $belse$b to demote you." },
108 { "MSG_NO_SEARCH_ACCESS", "You do not have enough access to search based on $b%s$b." },
109 { "MSG_INVALID_CRITERIA", "$b%s$b is an invalid search criteria." },
110 { "MSG_MATCH_COUNT", "Found $b%u$b matches." },
111 { "MSG_NO_MATCHES", "Nothing matched the criteria of your search." },
112 { "MSG_TOPIC_UNKNOWN", "No help on that topic." },
113 { "MSG_INVALID_BINARY", "$b%s$b is an invalid binary value." },
114 { "MSG_INTERNAL_FAILURE", "Your command could not be processed due to an internal failure." },
115 { "MSG_DB_UNKNOWN", "I do not know of a database named %s." },
116 { "MSG_DB_IS_MONDO", "Database %s is in the \"mondo\" database and cannot be written separately." },
117 { "MSG_DB_WRITE_ERROR", "Error while writing database %s." },
118 { "MSG_DB_WROTE_DB", "Wrote database %s (in "FMT_TIME_T
".%06lu seconds)." },
119 { "MSG_DB_WROTE_ALL", "Wrote all databases (in "FMT_TIME_T
".%06lu seconds)." },
120 { "MSG_AND", "and" },
121 { "MSG_0_SECONDS", "0 seconds" },
122 { "MSG_YEAR", "year" },
123 { "MSG_YEARS", "years" },
124 { "MSG_WEEK", "week" },
125 { "MSG_WEEKS", "weeks" },
126 { "MSG_DAY", "day" },
127 { "MSG_DAYS", "days" },
128 { "MSG_HOUR", "hour" },
129 { "MSG_HOURS", "hours" },
130 { "MSG_MINUTE", "minute" },
131 { "MSG_MINUTES", "minutes" },
132 { "MSG_SECOND", "second" },
133 { "MSG_SECONDS", "seconds" },
137 void uplink_select(char *name
);
140 uplink_insert(const char *key
, void *data
, UNUSED_ARG(void *extra
))
142 struct uplinkNode
*uplink
= malloc(sizeof(struct uplinkNode
));
143 struct record_data
*rd
= data
;
146 struct sockaddr_in
*sin
;
154 uplink
->name
= (char *)key
;
155 uplink
->host
= database_get_data(rd
->d
.object
, "address", RECDB_QSTRING
);
157 str
= database_get_data(rd
->d
.object
, "port", RECDB_QSTRING
);
158 uplink
->port
= str
? atoi(str
) : 6667;
159 uplink
->password
= database_get_data(rd
->d
.object
, "password", RECDB_QSTRING
);
160 uplink
->their_password
= database_get_data(rd
->d
.object
, "uplink_password", RECDB_QSTRING
);
162 str
= database_get_data(rd
->d
.object
, "enabled", RECDB_QSTRING
);
165 enabled
= atoi(str
) ? 1 : 0;
168 cManager
.enabled
+= enabled
;
170 str
= database_get_data(rd
->d
.object
, "max_tries", RECDB_QSTRING
);
171 uplink
->max_tries
= str
? atoi(str
) : 3;
172 uplink
->flags
= enabled
? 0 : UPLINK_UNAVAILABLE
;
173 uplink
->state
= DISCONNECTED
;
176 str
= database_get_data(rd
->d
.object
, "bind_address", RECDB_QSTRING
);
177 uplink
->bind_addr_len
= sizeof(*sin
);
178 if (str
&& getipbyname(str
, &addr
))
180 sin
= calloc(1, uplink
->bind_addr_len
);
181 sin
->sin_family
= AF_INET
;
182 sin
->sin_addr
.s_addr
= addr
;
183 uplink
->bind_addr
= sin
;
187 uplink
->bind_addr
= NULL
;
188 uplink
->bind_addr_len
= 0;
191 uplink
->next
= cManager
.uplinks
;
196 cManager
.uplinks
->prev
= uplink
;
199 cManager
.uplinks
= uplink
;
201 /* If the configuration is being reloaded, set the current uplink
202 to the reloaded equivalent, if possible. */
205 && !irccasecmp(uplink
->host
, cManager
.uplink
->host
)
206 && uplink
->port
== cManager
.uplink
->port
)
208 uplink
->state
= cManager
.uplink
->state
;
209 uplink
->tries
= cManager
.uplink
->tries
;
210 cManager
.uplink
= uplink
;
221 struct uplinkNode
*oldUplinks
= NULL
, *oldUplink
= NULL
;
223 /* Save the old uplinks, we'll remove them later. */
224 oldUplink
= cManager
.uplink
;
225 oldUplinks
= cManager
.uplinks
;
227 cycles
= conf_get_data("server/max_cycles", RECDB_QSTRING
);
228 max_cycles
= cycles
? atoi(cycles
) : 30;
229 if(!(conf_node
= conf_get_data("uplinks", RECDB_OBJECT
)))
231 log_module(MAIN_LOG
, LOG_FATAL
, "No uplinks configured; giving up.");
235 cManager
.enabled
= 0;
236 dict_foreach(conf_node
, uplink_insert
, NULL
);
238 /* Remove the old uplinks, if any. It doesn't matter if oldUplink (below)
239 is a reference to one of these, because it won't get dereferenced. */
242 struct uplinkNode
*uplink
, *next
;
244 oldUplinks
->prev
->next
= NULL
;
246 for(uplink
= oldUplinks
; uplink
; uplink
= next
)
249 free(uplink
->bind_addr
);
254 /* If the uplink hasn't changed, it's either NULL or pointing at
255 an uplink that was just deleted, select a new one. */
256 if(cManager
.uplink
== oldUplink
)
260 irc_squit(self
, "Uplinks updated; selecting new uplink.", NULL
);
263 cManager
.uplink
= NULL
;
269 uplink_find(char *name
)
271 struct uplinkNode
*uplink
;
273 if(!cManager
.enabled
|| !cManager
.uplinks
)
278 for(uplink
= cManager
.uplinks
; uplink
; uplink
= uplink
->next
)
280 if(!strcasecmp(uplink
->name
, name
))
290 uplink_select(char *name
)
292 struct uplinkNode
*start
, *uplink
, *next
;
295 if(!cManager
.enabled
|| !cManager
.uplinks
)
297 log_module(MAIN_LOG
, LOG_FATAL
, "No uplinks enabled; giving up.");
303 start
= cManager
.uplinks
;
307 start
= cManager
.uplink
->next
;
310 start
= cManager
.uplinks
;
315 for(uplink
= start
; uplink
; uplink
= next
)
317 next
= uplink
->next
? uplink
->next
: cManager
.uplinks
;
325 /* We've wrapped around the list. */
328 sleep((cManager
.cycles
>> 1) * 5);
331 if(max_cycles
&& (cManager
.cycles
>= max_cycles
))
333 log_module(MAIN_LOG
, LOG_FATAL
, "Maximum uplink list cycles exceeded; giving up.");
337 /* Give the uplink currently in 'uplink' consideration,
338 and if not selected, break on the next iteration. */
342 /* Skip bad uplinks. */
343 if(uplink
->flags
& UPLINK_UNAVAILABLE
)
348 if(name
&& irccasecmp(uplink
->name
, name
))
350 /* If we were told to connect to a specific uplink, don't stop
356 /* It would be possible to track uplink health through a variety
357 of statistics and only break on the best uplink. For now, break
358 on the first available one.
366 /* We are shit outta luck if every single uplink has been passed
367 over. Use the current uplink if possible. */
368 if(!cManager
.uplink
|| cManager
.uplink
->flags
& UPLINK_UNAVAILABLE
)
370 log_module(MAIN_LOG
, LOG_FATAL
, "All available uplinks exhausted; giving up.");
377 cManager
.uplink
= uplink
;
383 struct uplinkNode
*uplink
= cManager
.uplink
;
385 if(uplink
->state
!= DISCONNECTED
)
390 if(uplink
->flags
& UPLINK_UNAVAILABLE
)
393 uplink
= cManager
.uplink
;
398 /* This delay could scale with the number of tries. */
402 if(!create_socket_client(uplink
))
404 if(uplink
->max_tries
&& (uplink
->tries
>= uplink
->max_tries
))
406 /* This is a bad uplink, move on. */
407 uplink
->flags
|= UPLINK_UNAVAILABLE
;
415 uplink
->state
= AUTHENTICATING
;
416 irc_introduce(uplink
->password
);
425 /* This function is called when a ping is received. Take it as
426 a sign of link health and reset the connection manager
432 void sigaction_writedb(int x
)
434 #ifndef HAVE_STRSIGNAL
435 log_module(MAIN_LOG
, LOG_INFO
, "Signal %d -- writing databases.", x
);
437 log_module(MAIN_LOG
, LOG_INFO
, "%s -- writing databases.", strsignal(x
));
442 void sigaction_exit(int x
)
444 #ifndef HAVE_STRSIGNAL
445 log_module(MAIN_LOG
, LOG_INFO
, "Signal %d -- exiting.", x
);
447 log_module(MAIN_LOG
, LOG_INFO
, "%s -- exiting.", strsignal(x
));
449 irc_squit(self
, "Exiting on signal from console.", NULL
);
453 void sigaction_wait(UNUSED_ARG(int x
))
456 wait4(-1, &code
, WNOHANG
, NULL
);
459 void sigaction_rehash(int x
)
461 #ifndef HAVE_STRSIGNAL
462 log_module(MAIN_LOG
, LOG_INFO
, "Signal %d -- rehashing.", x
);
464 log_module(MAIN_LOG
, LOG_INFO
, "%s -- rehashing.", strsignal(x
));
469 static exit_func_t
*ef_list
;
470 static unsigned int ef_size
= 0, ef_used
= 0;
472 void reg_exit_func(exit_func_t handler
)
474 if (ef_used
== ef_size
) {
477 ef_list
= realloc(ef_list
, ef_size
*sizeof(exit_func_t
));
480 ef_list
= malloc(ef_size
*sizeof(exit_func_t
));
483 ef_list
[ef_used
++] = handler
;
486 void call_exit_funcs(void)
488 unsigned int n
= ef_used
;
490 /* Call them in reverse order because we initialize logs, then
491 * nickserv, then chanserv, etc., and they register their exit
492 * funcs in that order, and there are some dependencies (for
493 * example, ChanServ requires NickServ to not have cleaned up).
500 ef_used
= ef_size
= 0;
504 set_policer_param(const char *param
, void *data
, void *extra
)
506 struct record_data
*rd
= data
;
507 const char *str
= GET_RECORD_QSTRING(rd
);
509 policer_params_set(extra
, param
, str
);
520 info
= conf_get_data("services/global/nick", RECDB_QSTRING
);
521 if (info
&& (info
[0] == '.'))
525 info
= conf_get_data("services/nickserv/nick", RECDB_QSTRING
);
526 if (info
&& (info
[0] == '.'))
530 info
= conf_get_data("services/chanserv/nick", RECDB_QSTRING
);
531 if (info
&& (info
[0] == '.'))
535 god_policer_params
= policer_params_new();
536 if ((dict
= conf_get_data("policers/commands-god", RECDB_OBJECT
))) {
537 dict_foreach(dict
, set_policer_param
, god_policer_params
);
539 policer_params_set(god_policer_params
, "size", "30");
540 policer_params_set(god_policer_params
, "drain-rate", "1");
542 oper_policer_params
= policer_params_new();
543 if ((dict
= conf_get_data("policers/commands-oper", RECDB_OBJECT
))) {
544 dict_foreach(dict
, set_policer_param
, oper_policer_params
);
546 policer_params_set(oper_policer_params
, "size", "10");
547 policer_params_set(oper_policer_params
, "drain-rate", "1");
549 luser_policer_params
= policer_params_new();
550 if ((dict
= conf_get_data("policers/commands-luser", RECDB_OBJECT
))) {
551 dict_foreach(dict
, set_policer_param
, luser_policer_params
);
553 policer_params_set(luser_policer_params
, "size", "5");
554 policer_params_set(luser_policer_params
, "drain-rate", "0.50");
557 info
= conf_get_data("services/opserv/nick", RECDB_QSTRING
);
558 if (info
&& (info
[0] == '.'))
563 #ifdef HAVE_SYS_RESOURCE_H
566 set_item_rlimit(const char *name
, void *data
, void *extra
)
569 struct record_data
*rd
= data
;
573 rsrc
= (int)dict_find(extra
, name
, &found
);
575 log_module(MAIN_LOG
, LOG_ERROR
, "Invalid rlimit \"%s\" in rlimits section.", name
);
578 if (!(str
= GET_RECORD_QSTRING(rd
))) {
579 log_module(MAIN_LOG
, LOG_ERROR
, "Missing or invalid parameter type for rlimit \"%s\".", name
);
582 if (getrlimit(rsrc
, &rlim
) < 0) {
583 log_module(MAIN_LOG
, LOG_ERROR
, "Couldn't get rlimit \"%s\": errno %d: %s", name
, errno
, strerror(errno
));
586 rlim
.rlim_cur
= ParseVolume(str
);
587 if (setrlimit(rsrc
, &rlim
) < 0) {
588 log_module(MAIN_LOG
, LOG_ERROR
, "Couldn't set rlimit \"%s\": errno %d: %s", name
, errno
, strerror(errno
));
599 dict_insert(values
, "data", (void*)RLIMIT_DATA
);
600 dict_insert(values
, "stack", (void*)RLIMIT_STACK
);
602 dict_insert(values
, "vmem", (void*)RLIMIT_VMEM
);
605 dict_insert(values
, "vmem", (void*)RLIMIT_AS
);
608 if ((dict
= conf_get_data("rlimits", RECDB_OBJECT
))) {
609 dict_foreach(dict
, set_item_rlimit
, values
);
623 void main_shutdown(void)
625 struct uplinkNode
*ul
, *ul_next
;
627 for (ul
= cManager
.uplinks
; ul
; ul
= ul_next
) {
635 policer_params_delete(god_policer_params
);
636 policer_params_delete(oper_policer_params
);
637 policer_params_delete(luser_policer_params
);
642 void usage(char *self
) {
643 /* We can assume we have getopt_long(). */
644 printf("Usage: %s [-c config] [-r log] [-d] [-f] [-v|-h]\n"
645 "-c, --config selects a different configuration file.\n"
646 "-d, --debug enables debug mode.\n"
647 "-f, --foreground run srvx in the foreground.\n"
648 "-h, --help prints this usage message.\n"
649 "-k, --check checks the configuration file's syntax.\n"
650 "-r, --replay replay a log file (for debugging)\n"
651 "-v, --version prints this program's version.\n"
656 printf(" --------------------------------------------------\n"
657 " - "PACKAGE_STRING
" ("CODENAME
"), Built: " __DATE__
", " __TIME__
".\n"
658 " - Copyright (C) 2000 - 2003, srvx Development Team\n"
659 " --------------------------------------------------\n");
664 "This program is free software; you can redistribute it and/or modify\n"
665 "it under the terms of the GNU General Public License as published by\n"
666 "the Free Software Foundation; either version 2 of the License, or\n"
667 "(at your option) any later version.\n"
669 "This program is distributed in the hope that it will be useful,\n"
670 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
671 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
672 "GNU General Public License for more details.\n"
674 "You should have received a copy of the GNU General Public License\n"
675 "along with this program; if not, write to the Free Software\n"
676 "Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.\n\n");
679 #if WITH_MALLOC_BOEHM_GC
681 gc_warn_proc(char *msg
, GC_word arg
)
683 log_module(MAIN_LOG
, LOG_ERROR
, "GC(%p): %s", (void*)arg
, msg
);
687 int main(int argc
, char *argv
[])
698 /* set up some signal handlers */
699 memset(&sv
, 0, sizeof(sv
));
700 sigemptyset(&sv
.sa_mask
);
701 sv
.sa_handler
= SIG_IGN
;
702 sigaction(SIGPIPE
, &sv
, NULL
);
703 sv
.sa_handler
= sigaction_rehash
;
704 sigaction(SIGHUP
, &sv
, NULL
);
705 sv
.sa_handler
= sigaction_writedb
;
706 sigaction(SIGINT
, &sv
, NULL
);
707 sv
.sa_handler
= sigaction_exit
;
708 sigaction(SIGQUIT
, &sv
, NULL
);
709 sv
.sa_handler
= sigaction_wait
;
710 sigaction(SIGCHLD
, &sv
, NULL
);
712 if (argc
> 1) { /* parse command line, if any */
714 struct option options
[] =
716 {"config", 1, 0, 'c'},
717 {"debug", 0, 0, 'd'},
718 {"foreground", 0, 0, 'f'},
720 {"check", 0, 0, 'k'},
721 {"replay", 1, 0, 'r'},
722 {"version", 0, 0, 'v'},
723 {"verbose", 0, 0, 'V'},
727 while ((c
= getopt_long(argc
, argv
, "c:kr:dfvVh", options
, NULL
)) != -1) {
730 services_config
= optarg
;
733 if (conf_read(services_config
)) {
734 printf("%s appears to be a valid configuration file.\n", services_config
);
736 printf("%s is an invalid configuration file.\n", services_config
);
740 replay_file
= fopen(optarg
, "r");
742 fprintf(stderr
, "Could not open %s for reading: %s (%d)\n",
743 optarg
, strerror(errno
), errno
);
768 /* We read a line here to "prime" the replay file parser, but
769 * mostly to get the right value of "now" for when we do the
774 boot_time
= time(&now
);
777 log_module(MAIN_LOG
, LOG_INFO
, "Initializing daemon...");
778 if (!conf_read(services_config
)) {
779 log_module(MAIN_LOG
, LOG_FATAL
, "Unable to read %s.", services_config
);
783 conf_register_reload(uplink_compile
);
786 /* Attempt to fork into the background if daemon mode is on. */
789 log_module(MAIN_LOG
, LOG_FATAL
, "Unable to fork: %s", strerror(errno
));
790 } else if (pid
> 0) {
791 log_module(MAIN_LOG
, LOG_INFO
, "Forking into the background (pid: %i)...", pid
);
795 /* Close these since we should not use them from now on. */
801 if ((file_out
= fopen(PID_FILE
, "w")) == NULL
) {
802 /* Create the main process' pid file */
803 log_module(MAIN_LOG
, LOG_ERROR
, "Unable to create PID file: %s", strerror(errno
));
805 fprintf(file_out
, "%i\n", (int)getpid());
809 services_argc
= argc
;
810 services_argv
= argv
;
812 atexit(call_exit_funcs
);
813 reg_exit_func(main_shutdown
);
816 MAIN_LOG
= log_register_type("srvx", "file:main.log");
819 #if WITH_MALLOC_BOEHM_GC
820 GC_set_warn_proc(gc_warn_proc
);
821 GC_enable_incremental();
831 conf_globals(); /* initializes the core services */
834 message_register_table(msgtab
);
840 /* The first exit func to be called *should* be saxdb_write_all(). */
841 reg_exit_func(saxdb_write_all
);
844 log_module(MAIN_LOG
, LOG_INFO
, "Beginning replay...");
847 if ((msg
= dict_sanity_check(clients
))) {
848 log_module(MAIN_LOG
, LOG_ERROR
, "Clients insanity: %s", msg
);
851 if ((msg
= dict_sanity_check(channels
))) {
852 log_module(MAIN_LOG
, LOG_ERROR
, "Channels insanity: %s", msg
);
855 if ((msg
= dict_sanity_check(servers
))) {
856 log_module(MAIN_LOG
, LOG_ERROR
, "Servers insanity: %s", msg
);