1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2008 InspIRCd Development Team
6 * See: http://www.inspircd.org/wiki/index.php/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
14 /* $Install: src/inspircd $(BINPATH) */
22 #include <sys/resource.h>
26 /* Some systems don't define RUSAGE_SELF. This should fix them. */
35 #include "socketengine.h"
36 #include "inspircd_se_config.h"
38 #include "command_parse.h"
39 #include "exitcodes.h"
42 using irc::sockets::insp_ntoa;
43 using irc::sockets::insp_inaddr;
44 using irc::sockets::insp_sockaddr;
50 /* Burlex: Moved from exitcodes.h -- due to duplicate symbols */
51 const char* ExitCodes[] =
54 "DIE command", /* 1 */
55 "execv() failed", /* 2 */
56 "Internal error", /* 3 */
57 "Config file error", /* 4 */
58 "Logfile error", /* 5 */
59 "POSIX fork failed", /* 6 */
60 "Bad commandline parameters", /* 7 */
61 "No ports could be bound", /* 8 */
62 "Can't write PID file", /* 9 */
63 "SocketEngine could not initialize", /* 10 */
64 "Refusing to start up as root", /* 11 */
65 "Found a <die> tag!", /* 12 */
66 "Couldn't load module on startup", /* 13 */
67 "Could not create windows forked process", /* 14 */
68 "Received SIGTERM", /* 15 */
71 void InspIRCd::Cleanup()
75 for (unsigned int i = 0; i < Config->ports.size(); i++)
77 /* This calls the constructor and closes the listening socket */
78 delete Config->ports[i];
81 Config->ports.clear();
84 /* Close all client sockets, or the new process inherits them */
85 for (std::vector<User*>::const_iterator i = this->local_users.begin(); i != this->local_users.end(); i++)
87 (*i)->SetWriteError("Server shutdown");
91 /* We do this more than once, so that any service providers get a
92 * chance to be unhooked by the modules using them, but then get
93 * a chance to be removed themsleves.
95 for (int tries = 0; tries < 3; tries++)
97 std::vector<std::string> module_names = Modules->GetAllModuleNames(0);
98 for (std::vector<std::string>::iterator k = module_names.begin(); k != module_names.end(); ++k)
100 /* Unload all modules, so they get a chance to clean up their listeners */
101 this->Modules->Unload(k->c_str());
107 this->Logger->Close();
110 /* Cleanup Server Names */
111 for(servernamelist::iterator itr = servernames.begin(); itr != servernames.end(); ++itr)
117 void InspIRCd::Restart(const std::string &reason)
119 /* SendError flushes each client's queue,
120 * regardless of writeability state
122 this->SendError(reason);
126 /* Figure out our filename (if theyve renamed it, we're boned) */
130 char module[MAX_PATH];
131 if (GetModuleFileName(NULL, module, MAX_PATH))
134 me = Config->MyDir + "/inspircd";
137 if (execv(me.c_str(), Config->argv) == -1)
139 /* Will raise a SIGABRT if not trapped */
140 throw CoreException(std::string("Failed to execv()! error: ") + strerror(errno));
144 void InspIRCd::ResetMaxBans()
146 for (chan_hash::const_iterator i = chanlist->begin(); i != chanlist->end(); i++)
147 i->second->ResetMaxBans();
150 /** Because hash_map doesnt free its buckets when we delete items (this is a 'feature')
151 * we must occasionally rehash the hash (yes really).
152 * We do this by copying the entries from the old hash to a new hash, causing all
153 * empty buckets to be weeded out of the hash. We dont do this on a timer, as its
154 * very expensive, so instead we do it when the user types /REHASH and expects a
155 * short delay anyway.
157 void InspIRCd::RehashUsersAndChans()
159 user_hash* old_users = this->clientlist;
160 user_hash* old_uuid = this->uuidlist;
161 chan_hash* old_chans = this->chanlist;
163 this->clientlist = new user_hash();
164 this->uuidlist = new user_hash();
165 this->chanlist = new chan_hash();
167 for (user_hash::const_iterator n = old_users->begin(); n != old_users->end(); n++)
168 this->clientlist->insert(*n);
172 for (user_hash::const_iterator n = old_uuid->begin(); n != old_uuid->end(); n++)
173 this->uuidlist->insert(*n);
177 for (chan_hash::const_iterator n = old_chans->begin(); n != old_chans->end(); n++)
178 this->chanlist->insert(*n);
183 void InspIRCd::CloseLog()
186 this->Logger->Close();
189 void InspIRCd::SetSignals()
192 signal(SIGALRM, SIG_IGN);
193 signal(SIGHUP, InspIRCd::SetSignal);
194 signal(SIGPIPE, SIG_IGN);
195 signal(SIGCHLD, SIG_IGN);
197 signal(SIGTERM, InspIRCd::SetSignal);
200 void InspIRCd::QuickExit(int status)
205 bool InspIRCd::DaemonSeed()
208 printf_c("InspIRCd Process ID: \033[1;32m%lu\033[0m\n", GetCurrentProcessId());
211 signal(SIGTERM, InspIRCd::QuickExit);
214 if ((childpid = fork ()) < 0)
216 else if (childpid > 0)
218 /* We wait here for the child process to kill us,
219 * so that the shell prompt doesnt come back over
221 * Sending a kill with a signal of 0 just checks
222 * if the child pid is still around. If theyre not,
223 * they threw an error and we should give up.
225 while (kill(childpid, 0) != -1)
231 printf("InspIRCd Process ID: \033[1;32m%lu\033[0m\n",(unsigned long)getpid());
233 signal(SIGTERM, InspIRCd::SetSignal);
236 if (getrlimit(RLIMIT_CORE, &rl) == -1)
238 this->Log(DEFAULT,"Failed to getrlimit()!");
243 rl.rlim_cur = rl.rlim_max;
244 if (setrlimit(RLIMIT_CORE, &rl) == -1)
245 this->Log(DEFAULT,"setrlimit() failed, cannot increase coredump size.");
252 void InspIRCd::WritePID(const std::string &filename)
254 std::string fname = (filename.empty() ? "inspircd.pid" : filename);
255 if (*(fname.begin()) != '/')
257 std::string::size_type pos;
258 std::string confpath = this->ConfigFileName;
259 if ((pos = confpath.rfind("/")) != std::string::npos)
261 /* Leaves us with just the path */
262 fname = confpath.substr(0, pos) + std::string("/") + fname;
265 std::ofstream outfile(fname.c_str());
266 if (outfile.is_open())
273 printf("Failed to write PID-file '%s', exiting.\n",fname.c_str());
274 this->Log(DEFAULT,"Failed to write PID-file '%s', exiting.",fname.c_str());
275 Exit(EXIT_STATUS_PID);
279 InspIRCd::InspIRCd(int argc, char** argv)
282 /* Functor initialisation. Note that the ordering here is very important. */
283 HandleProcessUser(this),
286 HandleFindDescriptor(this),
287 HandleFloodQuitUser(this),
289 /* Functor pointer initialisation. Must match the order of the list above */
290 ProcessUser(&HandleProcessUser),
291 IsNick(&HandleIsNick),
292 IsIdent(&HandleIsIdent),
293 FindDescriptor(&HandleFindDescriptor),
294 FloodQuitUser(&HandleFloodQuitUser)
300 int do_version = 0, do_nofork = 0, do_debug = 0, do_nolog = 0, do_root = 0; /* flag variables */
303 memset(&server, 0, sizeof(server));
304 memset(&client, 0, sizeof(client));
306 SocketEngineFactory* SEF = new SocketEngineFactory();
307 SE = SEF->Create(this);
312 this->unregistered_count = 0;
314 this->clientlist = new user_hash();
315 this->uuidlist = new user_hash();
316 this->chanlist = new chan_hash();
320 this->Config = new ServerConfig(this);
321 this->SNO = new SnomaskManager(this);
322 this->BanCache = new BanCacheManager(this);
323 this->Modules = new ModuleManager(this);
324 this->stats = new serverstats();
325 this->Timers = new TimerManager(this);
326 this->Parser = new CommandParser(this);
327 this->XLines = new XLineManager(this);
328 this->Users = new UserManager(this);
330 this->Config->argv = argv;
331 this->Config->argc = argc;
333 if (chdir(Config->GetFullProgDir().c_str()))
335 printf("Unable to change to my directory: %s\nAborted.", strerror(errno));
339 this->Config->opertypes.clear();
340 this->Config->operclass.clear();
342 this->TIME = this->OLDTIME = this->startup_time = time(NULL);
343 this->time_delta = 0;
346 *this->LogFileName = 0;
347 strlcpy(this->ConfigFileName, CONFIG_FILE, MAXBUF);
349 struct option longopts[] =
351 { "nofork", no_argument, &do_nofork, 1 },
352 { "logfile", required_argument, NULL, 'f' },
353 { "config", required_argument, NULL, 'c' },
354 { "debug", no_argument, &do_debug, 1 },
355 { "nolog", no_argument, &do_nolog, 1 },
356 { "runasroot", no_argument, &do_root, 1 },
357 { "version", no_argument, &do_version, 1 },
361 while ((c = getopt_long_only(argc, argv, ":f:", longopts, NULL)) != -1)
366 /* Log filename was set */
367 strlcpy(LogFileName, optarg, MAXBUF);
370 /* Config filename was set */
371 strlcpy(ConfigFileName, optarg, MAXBUF);
374 /* getopt_long_only() set an int variable, just keep going */
377 /* Unknown parameter! DANGER, INTRUDER.... err.... yeah. */
378 printf("Usage: %s [--nofork] [--nolog] [--debug] [--logfile <filename>] [--runasroot] [--version] [--config <config>]\n", argv[0]);
379 Exit(EXIT_STATUS_ARGV);
386 printf("\n%s r%s\n", VERSION, REVISION);
387 Exit(EXIT_STATUS_NOERROR);
395 DWORD ExitCode = WindowsForkStart(this);
402 WSAStartup(MAKEWORD(2,0), &wsadata);
403 ChangeWindowsSpecificPointers(this);
405 strlcpy(Config->MyExecutable,argv[0],MAXBUF);
407 if (!this->OpenLog(argv, argc))
409 printf("ERROR: Could not open logfile %s: %s\n\n", Config->logpath.c_str(), strerror(errno));
410 Exit(EXIT_STATUS_LOG);
413 if (!ServerConfig::FileExists(this->ConfigFileName))
415 printf("ERROR: Cannot open config file: %s\nExiting...\n", this->ConfigFileName);
416 this->Log(DEFAULT,"Unable to open config file %s", this->ConfigFileName);
417 Exit(EXIT_STATUS_CONFIG);
420 printf_c("\033[1;32mInspire Internet Relay Chat Server, compiled %s at %s\n",__DATE__,__TIME__);
421 printf_c("(C) InspIRCd Development Team.\033[0m\n\n");
422 printf_c("Developers:\t\t\033[1;32mBrain, FrostyCoolSlug, w00t, Om, Special, pippijn, peavey, Burlex\033[0m\n");
423 printf_c("Others:\t\t\t\033[1;32mSee /INFO Output\033[0m\n");
425 /* Set the finished argument values */
426 Config->nofork = do_nofork;
427 Config->forcedebug = do_debug;
428 Config->writelog = !do_nolog;
429 Config->ClearStack();
431 this->Modes = new ModeParser(this);
433 /* set up fake client (uid is incorrect at this point,
434 * until after config is read. we set up the user again
437 this->FakeClient = new User(this);
438 this->FakeClient->SetFd(FD_MAGIC_NUMBER);
444 printf("* WARNING * WARNING * WARNING * WARNING * WARNING * \n\n");
445 printf("YOU ARE RUNNING INSPIRCD AS ROOT. THIS IS UNSUPPORTED\n");
446 printf("AND IF YOU ARE HACKED, CRACKED, SPINDLED OR MUTILATED\n");
447 printf("OR ANYTHING ELSE UNEXPECTED HAPPENS TO YOU OR YOUR\n");
448 printf("SERVER, THEN IT IS YOUR OWN FAULT. IF YOU DID NOT MEAN\n");
449 printf("TO START INSPIRCD AS ROOT, HIT CTRL+C NOW AND RESTART\n");
450 printf("THE PROGRAM AS A NORMAL USER. YOU HAVE BEEN WARNED!\n");
451 printf("\nInspIRCd starting in 20 seconds, ctrl+c to abort...\n");
459 if (!this->DaemonSeed())
461 printf("ERROR: could not go into daemon mode. Shutting down.\n");
462 Log(DEFAULT,"ERROR: could not go into daemon mode. Shutting down.");
463 Exit(EXIT_STATUS_FORK);
467 SE->RecoverFromFork();
469 /* Read config, pass 0. At the end if this pass,
470 * the Config->IncludeFiles is populated, we call
471 * Config->StartDownloads to initialize the downlaods of all
474 Config->Read(true, NULL, 0);
475 Config->DoDownloads();
476 /* We have all the files we can get, initiate pass 1 */
477 Config->Read(true, NULL, 1);
479 this->AddServerName(Config->ServerName);
482 * Initialise SID/UID.
483 * For an explanation as to exactly how this works, and why it works this way, see GetUID().
494 for (const char* x = Config->ServerName; *x; ++x)
496 for (const char* y = Config->ServerDesc; *y; ++y)
500 Config->sid[0] = (char)(sid / 100 + 48);
501 Config->sid[1] = (char)(((sid / 10) % 10) + 48);
502 Config->sid[2] = (char)(sid % 10 + 48);
505 this->InitialiseUID();
507 /* set up fake client again this time with the correct uid */
509 this->FakeClient = new User(this);
510 this->FakeClient->SetFd(FD_MAGIC_NUMBER);
512 // Get XLine to do it's thing.
513 this->XLines->CheckELines();
514 this->XLines->ApplyLines();
518 int bounditems = BindPorts(true, found_ports, pl);
522 /*this->Modules->LoadAll();*/
524 /* Just in case no modules were loaded - fix for bug #101 */
525 this->BuildISupport();
526 InitializeDisabledCommands(Config->DisabledCommands, this);
528 if ((Config->ports.size() == 0) && (found_ports > 0))
530 printf("\nERROR: I couldn't bind any ports! Are you sure you didn't start InspIRCd twice?\n");
531 Log(DEFAULT,"ERROR: I couldn't bind any ports! Are you sure you didn't start InspIRCd twice?");
532 Exit(EXIT_STATUS_BIND);
535 if (Config->ports.size() != (unsigned int)found_ports)
537 printf("\nWARNING: Not all your client ports could be bound --\nstarting anyway with %d of %d client ports bound.\n\n", bounditems, found_ports);
538 printf("The following port(s) failed to bind:\n");
540 for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
542 printf("%d.\tIP: %s\tPort: %lu\n", j, i->first.empty() ? "<all>" : i->first.c_str(), (unsigned long)i->second);
548 if (kill(getppid(), SIGTERM) == -1)
550 printf("Error killing parent process: %s\n",strerror(errno));
551 Log(DEFAULT,"Error killing parent process: %s",strerror(errno));
555 if (isatty(0) && isatty(1) && isatty(2))
557 /* We didn't start from a TTY, we must have started from a background process -
558 * e.g. we are restarting, or being launched by cron. Dont kill parent, and dont
569 Log(DEFAULT,"Keeping pseudo-tty open as we are running in the foreground.");
573 WindowsIPC = new IPC(this);
576 WindowsForkKillOwner(this);
581 printf("\nInspIRCd is now running!\n");
582 Log(DEFAULT,"Startup complete.");
584 this->WritePID(Config->PID);
587 /* moved to a function, as UID generation can call this also */
588 void InspIRCd::InitialiseUID()
592 current_uid[0] = Config->sid[0];
593 current_uid[1] = Config->sid[1];
594 current_uid[2] = Config->sid[2];
597 for(i = 3; i < UUID_LENGTH - 1; i++)
598 current_uid[i] = 'A';
600 current_uid[UUID_LENGTH] = '\0';
610 static time_t uptime;
611 static struct tm * stime;
612 static char window_title[100];
615 /* time() seems to be a pretty expensive syscall, so avoid calling it too much.
616 * Once per loop iteration is pleanty.
621 /* Run background module timers every few seconds
622 * (the docs say modules shouldnt rely on accurate
623 * timing using this event, so we dont have to
624 * time this exactly).
628 /* if any users were quit, take them out */
629 this->GlobalCulls.Apply();
633 WriteOpers("*** \002EH?!\002 -- Time is flowing BACKWARDS in this dimension! Clock drifted backwards %d secs.",abs(OLDTIME-TIME));
636 if ((TIME % 3600) == 0)
638 this->RehashUsersAndChans();
639 FOREACH_MOD_I(this, I_OnGarbageCollect, OnGarbageCollect());
642 Timers->TickTimers(TIME);
643 this->DoBackgroundUserStuff();
647 FOREACH_MOD_I(this,I_OnBackgroundTimer,OnBackgroundTimer(TIME));
648 SNO->FlushSnotices();
651 /* Same change as in cmd_stats.cpp, use RUSAGE_SELF rather than '0' -- Om */
652 if (!getrusage(RUSAGE_SELF, &ru))
654 gettimeofday(&this->stats->LastSampled, NULL);
655 this->stats->LastCPU = ru.ru_utime;
662 uptime = Time() - startup_time;
663 stime = gmtime(&uptime);
664 snprintf(window_title, 100, "InspIRCd - %u clients, %u accepted connections - Up %u days, %.2u:%.2u:%.2u",
665 LocalUserCount(), stats->statsAccept, stime->tm_yday, stime->tm_hour, stime->tm_min, stime->tm_sec);
666 SetConsoleTitle(window_title);
671 /* Call the socket engine to wait on the active
672 * file descriptors. The socket engine has everything's
673 * descriptors in its list... dns, modules, users,
674 * servers... so its nice and easy, just one call.
675 * This will cause any read or write events to be
676 * dispatched to their handlers.
678 this->SE->DispatchEvents();
680 /* If any inspsockets closed, remove them */
681 this->BufferedSocketCull();
685 this->SignalHandler(s_signal);
693 void InspIRCd::BufferedSocketCull()
695 for (std::map<BufferedSocket*,BufferedSocket*>::iterator x = SocketCull.begin(); x != SocketCull.end(); ++x)
697 Log(DEBUG,"Cull socket");
698 SE->DelFd(x->second);
705 /**********************************************************************************/
708 * An ircd in five lines! bwahahaha. ahahahahaha. ahahah *cough*.
711 int main(int argc, char ** argv)
713 SI = new InspIRCd(argc, argv);
714 mysig = &SI->s_signal;
720 /* this returns true when all modules are satisfied that the user should be allowed onto the irc server
721 * (until this returns true, a user will block in the waiting state, waiting to connect up to the
722 * registration timeout maximum seconds)
724 bool InspIRCd::AllModulesReportReady(User* user)
726 for (EventHandlerIter i = Modules->EventHandlers[I_OnCheckReady].begin(); i != Modules->EventHandlers[I_OnCheckReady].end(); ++i)
728 int res = (*i)->OnCheckReady(user);
736 time_t InspIRCd::Time(bool delta)
739 return TIME + time_delta;
743 int InspIRCd::SetTimeDelta(int delta)
745 int old = time_delta;
747 this->Log(DEBUG, "Time delta set to %d (was %d)", time_delta, old);
751 int InspIRCd::GetTimeDelta()
756 void InspIRCd::SetSignal(int signal)