/* * charybdis: A slightly useful ircd. * ircd.c: Starts up and runs the ircd. * * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center * Copyright (C) 1996-2002 Hybrid Development Team * Copyright (C) 2002-2008 ircd-ratbox development team * Copyright (C) 2005-2013 charybdis development team * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * USA */ #include namespace ircd { bool debugmode; // set by command line boost::asio::io_service *ios; // user's io service bool main_finish; // Set by stop() to request main context exit bool _main_exited; // Set when IRCd is finished const bool &main_exited(_main_exited); // Read-only observer linkage for _main_exited. main_exit_cb main_exit_func; // Called when main context exits ctx::ctx *main_context; // Reference to main context void init_rlimit(); void main_exiting() noexcept; void main(); } void ircd::init(boost::asio::io_service &io_service, const std::string &configfile, main_exit_cb main_exit_func) { ircd::ios = &io_service; main_finish = false; _main_exited = false; init_rlimit(); // The log is available, but it is console-only until conf opens files. log::init(); log::mark("START"); if(main_exit_func) { log::debug("User set an exit callback"); at_main_exit(std::move(main_exit_func)); } // The master of ceremonies runs the show after this function returns and ios.run(). main_context = context("main", 8_MiB, ircd::main).detach(); //TODO: optimize stack size log::debug("IRCd pre-main initialization completed."); } void ircd::stop() { main_finish = true; if(main_context) ctx::notify(*main_context); } /// Main context; Main program loop. Do not call this function directly. /// This is created by the user of libircd calling ircd::init(). It is shutdown /// by the user of libircd calling ircd::stop(). It is scheduled by the user's /// io_service.run(). void ircd::main() try { log::debug("IRCd entered main context."); const scope main_exit(&main_exiting); // The user is notified when this function ends // These objects are the init()'s and fini()'s for each subsystem. Appearing here ties their life // to the main context. Initialization can also occur in ircd::init() or static initialization // itself if either are more appropriate. ctx::ole::init _ole_; // Thread OffLoad Engine client::init _client_; // Client/Socket Networking db::init _db_; // RocksDB js::init _js_; // SpiderMonkey m::init _matrix_; // Matrix // This is the main program loop. Right now all it does is sleep until notified to // break with a clean shutdown. Other subsystems may spawn their own main loops, but // they all must cleanly complete when this completes. log::notice("IRCd ready"); do { ctx::wait(); } while(!main_finish); log::notice("IRCd terminating"); } catch(const std::exception &e) { log::critical("IRCd terminated: %s", e.what()); if(ircd::debugmode) std::terminate(); } // // Cleanup function for the main context. // void ircd::main_exiting() noexcept try { if(main_exit_func) { // This function will notify the user of IRCd shutdown. The notification is // posted to the io_service ensuring THERE IS NO CONTINUATION ON THIS STACK by // the user, who is then free to destruct all elements of IRCd. log::notice("Notifying user of IRCd completion"); ios->post(main_exit_func); } _main_exited = true; main_context = nullptr; } catch(const std::exception &e) { log::critical("main context exit: %s", e.what()); std::terminate(); } void ircd::at_main_exit(main_exit_cb main_exit_func) { ircd::main_exit_func = std::move(main_exit_func); } void #ifdef HAVE_SYS_RESOURCE_H ircd::init_rlimit() try { // // Setup corefile size immediately after boot -kre // rlimit rlim; // resource limits syscall(getrlimit, RLIMIT_CORE, &rlim); // Set corefilesize to maximum rlim.rlim_cur = rlim.rlim_max; syscall(setrlimit, RLIMIT_CORE, &rlim); } catch(const std::exception &e) { std::cerr << "Failed to adjust rlimit: " << e.what() << std::endl; } #else ircd::init_rlimit() { } #endif // namespace ircd { /* /quote set variables */ /* struct SetOptions GlobalSetOptions; struct Counter Count; struct ServerStatistics ServerStats; struct ev_entry *check_splitmode_ev; int maxconnections; //struct LocalUser meLocalUser; // That's also part of me rb_dlink_list global_client_list; */ /* unknown/client pointer lists */ //rb_dlink_list unknown_list; /* unknown clients ON this server only */ //rb_dlink_list lclient_list; /* local clients only ON this server */ //rb_dlink_list serv_list; /* local servers to this server ONLY */ //rb_dlink_list global_serv_list; /* global servers on the network */ //rb_dlink_list local_oper_list; /* our opers, duplicated in lclient_list */ //rb_dlink_list oper_list; /* network opers */ /* char * const *myargv; volatile sig_atomic_t dorehash = false; volatile sig_atomic_t dorehashbans = false; volatile sig_atomic_t doremotd = false; bool kline_queued = false; bool server_state_foreground = true; bool opers_see_all_users = false; bool ircd_ssl_ok = false; bool ircd_zlib_ok = true; int testing_conf = 0; //time_t startup_time; int default_server_capabs; int splitmode; int splitchecking; int split_users; int split_servers; int eob_count; */ // } /* static void check_rehash(void *unused) { if(dorehash) { rehash(true); dorehash = false; } if(dorehashbans) { rehash_bans(); dorehashbans = false; } if(doremotd) { sendto_realops_snomask(sno::GENERAL, L_ALL, "Got signal SIGUSR1, reloading ircd motd file"); cache::motd::cache_user(); doremotd = false; } } */ /* * initalialize_global_set_options * * inputs - none * output - none * side effects - This sets all global set options needed */ /* static void initialize_global_set_options(void) { memset(&GlobalSetOptions, 0, sizeof(GlobalSetOptions)); // memset( &ConfigFileEntry, 0, sizeof(ConfigFileEntry)); GlobalSetOptions.maxclients = ServerInfo.default_max_clients; if(GlobalSetOptions.maxclients > (maxconnections - MAX_BUFFER) || (GlobalSetOptions.maxclients <= 0)) GlobalSetOptions.maxclients = maxconnections - MAX_BUFFER; GlobalSetOptions.autoconn = 1; GlobalSetOptions.spam_time = MIN_JOIN_LEAVE_TIME; GlobalSetOptions.spam_num = MAX_JOIN_LEAVE_COUNT; GlobalSetOptions.floodcount = ConfigFileEntry.default_floodcount; split_servers = ConfigChannel.default_split_server_count; split_users = ConfigChannel.default_split_user_count; if(split_users && split_servers && (ConfigChannel.no_create_on_split || ConfigChannel.no_join_on_split)) { splitmode = 1; splitchecking = 1; } GlobalSetOptions.ident_timeout = ConfigFileEntry.default_ident_timeout; rb_strlcpy(GlobalSetOptions.operstring, ConfigFileEntry.default_operstring, sizeof(GlobalSetOptions.operstring)); rb_strlcpy(GlobalSetOptions.adminstring, ConfigFileEntry.default_adminstring, sizeof(GlobalSetOptions.adminstring)); } */ // initialise operhash fairly early. //init_operhash(); //me.localClient = &meLocalUser; //rb_dlinkAddTail(&me, &me.node, &global_client_list); //init_builtin_capabs(); //default_server_capabs = CAP_MASK; //newconf_init(); //init_s_conf(); //init_s_newconf(); //init_hash(); //init_host_hash(); //client::init(); //init_hook(); //chan::init(); //initclass(); //whowas::init(); //init_reject(); //cache::init(); //init_monitor(); //chan::mode::init(); //init_authd(); /* Start up authd. */ //init_dns(); /* Start up DNS query system */ //privilegeset_set_new("default", "", 0); //read_conf_files(true); /* cold start init conf files */ //mods::autoload(); //supported::init(); //init_bandb(); //init_ssld(); //init_wsockd(); //rehash_bans(); //default_server_capabs &= ~CAP_ZIP; // Set up default_server_capabs //initialize_global_set_options(); /* if(ServerInfo.name == NULL) throw error("no server name specified in serverinfo block."); rb_strlcpy(me.name, ServerInfo.name, sizeof(me.name)); if(ServerInfo.sid[0] == '\0') throw error("no server sid specified in serverinfo block."); rb_strlcpy(me.id, ServerInfo.sid, sizeof(me.id)); //client::init_uid(); // serverinfo{} description must exist. If not, error out. if(ServerInfo.description == NULL) throw error("no server description specified in serverinfo block."); rb_strlcpy(me.info, ServerInfo.description, sizeof(me.info)); */ /* if(ServerInfo.ssl_cert != NULL) { // just do the rb_setup_ssl_server to validate the config if(!rb_setup_ssl_server(ServerInfo.ssl_cert, ServerInfo.ssl_private_key, ServerInfo.ssl_dh_params, ServerInfo.ssl_cipher_list)) { ilog(L_MAIN, "WARNING: Unable to setup SSL."); ircd_ssl_ok = false; } else ircd_ssl_ok = true; } */ //me.from = &me; //me.servptr = &me; //set_me(me); //make_serv(me); //add_to_client_hash(me.name, &me); //add_to_id_hash(me.id, &me); //nameinfo(serv(me)) = cache::serv::connect(me.name, me.info); //rb_dlinkAddAlloc(&me, &global_serv_list); //check_class(); //cache::help::load(); //configure_authd(); /* We want try_connections to be called as soon as possible now! -- adrian */ /* No, 'cause after a restart it would cause all sorts of nick collides */ /* um. by waiting even longer, that just means we have even *more* * nick collisions. what a stupid idea. set an event for the IO loop --fl */ // rb_event_addish("try_connections", try_connections, NULL, STARTUP_CONNECTIONS_TIME); // rb_event_addonce("try_connections_startup", try_connections, NULL, 2); // rb_event_add("check_rehash", check_rehash, NULL, 3); // rb_event_addish("reseed_srand", seed_random, NULL, 300); /* reseed every 10 minutes */ // if(splitmode) // check_splitmode_ev = rb_event_add("check_splitmode", chan::check_splitmode, NULL, 5);