1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2007 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 * ---------------------------------------------------
20 #include <sys/resource.h>
24 /* Some systems don't define RUSAGE_SELF. This should fix them. */
32 #include "socketengine.h"
33 #include "inspircd_se_config.h"
35 #include "command_parse.h"
36 #include "exitcodes.h"
39 using irc::sockets::insp_ntoa;
40 using irc::sockets::insp_inaddr;
41 using irc::sockets::insp_sockaddr;
47 /* Burlex: Moved from exitcodes.h -- due to duplicate symbols */
48 const char* ExitCodes[] =
51 "DIE command", /* 1 */
52 "execv() failed", /* 2 */
53 "Internal error", /* 3 */
54 "Config file error", /* 4 */
55 "Logfile error", /* 5 */
56 "POSIX fork failed", /* 6 */
57 "Bad commandline parameters", /* 7 */
58 "No ports could be bound", /* 8 */
59 "Can't write PID file", /* 9 */
60 "SocketEngine could not initialize", /* 10 */
61 "Refusing to start up as root", /* 11 */
62 "Found a <die> tag!", /* 12 */
63 "Couldn't load module on startup", /* 13 */
64 "Could not create windows forked process", /* 14 */
65 "Received SIGTERM", /* 15 */
68 void InspIRCd::Cleanup()
70 std::vector<std::string> mymodnames;
71 int MyModCount = this->Modules->GetCount();
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 MyModCount = this->Modules->GetCount();
102 /* Unload all modules, so they get a chance to clean up their listeners */
103 for (int j = 0; j <= MyModCount; j++)
104 mymodnames.push_back(Config->module_names[j]);
106 for (int k = 0; k <= MyModCount; k++)
107 this->Modules->Unload(mymodnames[k].c_str());
114 this->Logger->Close();
117 /* Cleanup Server Names */
118 for(servernamelist::iterator itr = servernames.begin(); itr != servernames.end(); ++itr)
124 void InspIRCd::Restart(const std::string &reason)
126 /* SendError flushes each client's queue,
127 * regardless of writeability state
129 this->SendError(reason);
133 /* Figure out our filename (if theyve renamed it, we're boned) */
137 char module[MAX_PATH];
138 if (GetModuleFileName(NULL, module, MAX_PATH))
141 me = Config->MyDir + "/inspircd";
144 if (execv(me.c_str(), Config->argv) == -1)
146 /* Will raise a SIGABRT if not trapped */
147 throw CoreException(std::string("Failed to execv()! error: ") + strerror(errno));
151 void InspIRCd::ResetMaxBans()
153 for (chan_hash::const_iterator i = chanlist->begin(); i != chanlist->end(); i++)
154 i->second->ResetMaxBans();
157 /** Because hash_map doesnt free its buckets when we delete items (this is a 'feature')
158 * we must occasionally rehash the hash (yes really).
159 * We do this by copying the entries from the old hash to a new hash, causing all
160 * empty buckets to be weeded out of the hash. We dont do this on a timer, as its
161 * very expensive, so instead we do it when the user types /REHASH and expects a
162 * short delay anyway.
164 void InspIRCd::RehashUsersAndChans()
166 user_hash* old_users = this->clientlist;
167 user_hash* old_uuid = this->uuidlist;
168 chan_hash* old_chans = this->chanlist;
170 this->clientlist = new user_hash();
171 this->uuidlist = new user_hash();
172 this->chanlist = new chan_hash();
174 for (user_hash::const_iterator n = old_users->begin(); n != old_users->end(); n++)
175 this->clientlist->insert(*n);
179 for (user_hash::const_iterator n = old_uuid->begin(); n != old_uuid->end(); n++)
180 this->uuidlist->insert(*n);
184 for (chan_hash::const_iterator n = old_chans->begin(); n != old_chans->end(); n++)
185 this->chanlist->insert(*n);
190 void InspIRCd::CloseLog()
193 this->Logger->Close();
196 void InspIRCd::SetSignals()
199 signal(SIGALRM, SIG_IGN);
200 signal(SIGHUP, InspIRCd::SetSignal);
201 signal(SIGPIPE, SIG_IGN);
202 signal(SIGCHLD, SIG_IGN);
204 signal(SIGTERM, InspIRCd::SetSignal);
207 void InspIRCd::QuickExit(int status)
212 bool InspIRCd::DaemonSeed()
215 printf_c("InspIRCd Process ID: \033[1;32m%lu\033[0m\n", GetCurrentProcessId());
218 signal(SIGTERM, InspIRCd::QuickExit);
221 if ((childpid = fork ()) < 0)
223 else if (childpid > 0)
225 /* We wait here for the child process to kill us,
226 * so that the shell prompt doesnt come back over
228 * Sending a kill with a signal of 0 just checks
229 * if the child pid is still around. If theyre not,
230 * they threw an error and we should give up.
232 while (kill(childpid, 0) != -1)
238 printf("InspIRCd Process ID: \033[1;32m%lu\033[0m\n",(unsigned long)getpid());
240 signal(SIGTERM, InspIRCd::SetSignal);
243 if (getrlimit(RLIMIT_CORE, &rl) == -1)
245 this->Log(DEFAULT,"Failed to getrlimit()!");
250 rl.rlim_cur = rl.rlim_max;
251 if (setrlimit(RLIMIT_CORE, &rl) == -1)
252 this->Log(DEFAULT,"setrlimit() failed, cannot increase coredump size.");
259 void InspIRCd::WritePID(const std::string &filename)
261 std::string fname = (filename.empty() ? "inspircd.pid" : filename);
262 if (*(fname.begin()) != '/')
264 std::string::size_type pos;
265 std::string confpath = this->ConfigFileName;
266 if ((pos = confpath.rfind("/")) != std::string::npos)
268 /* Leaves us with just the path */
269 fname = confpath.substr(0, pos) + std::string("/") + fname;
272 std::ofstream outfile(fname.c_str());
273 if (outfile.is_open())
280 printf("Failed to write PID-file '%s', exiting.\n",fname.c_str());
281 this->Log(DEFAULT,"Failed to write PID-file '%s', exiting.",fname.c_str());
282 Exit(EXIT_STATUS_PID);
286 InspIRCd::InspIRCd(int argc, char** argv)
289 /* Functor initialisation. Note that the ordering here is very important. */
290 HandleProcessUser(this),
293 HandleFindDescriptor(this),
294 HandleFloodQuitUser(this),
296 /* Functor pointer initialisation. Must match the order of the list above */
297 ProcessUser(&HandleProcessUser),
298 IsNick(&HandleIsNick),
299 IsIdent(&HandleIsIdent),
300 FindDescriptor(&HandleFindDescriptor),
301 FloodQuitUser(&HandleFloodQuitUser)
307 int do_version = 0, do_nofork = 0, do_debug = 0, do_nolog = 0, do_root = 0; /* flag variables */
310 memset(&server, 0, sizeof(server));
311 memset(&client, 0, sizeof(client));
313 SocketEngineFactory* SEF = new SocketEngineFactory();
314 SE = SEF->Create(this);
319 this->unregistered_count = 0;
321 this->clientlist = new user_hash();
322 this->uuidlist = new user_hash();
323 this->chanlist = new chan_hash();
325 this->Config = new ServerConfig(this);
327 this->Config->argv = argv;
328 this->Config->argc = argc;
330 if (chdir(Config->GetFullProgDir().c_str()))
332 printf("Unable to change to my directory: %s\nAborted.", strerror(errno));
336 this->Config->opertypes.clear();
337 this->Config->operclass.clear();
338 this->SNO = new SnomaskManager(this);
339 this->TIME = this->OLDTIME = this->startup_time = time(NULL);
340 this->time_delta = 0;
341 this->next_call = this->TIME + 3;
344 *this->LogFileName = 0;
345 strlcpy(this->ConfigFileName, CONFIG_FILE, MAXBUF);
347 struct option longopts[] =
349 { "nofork", no_argument, &do_nofork, 1 },
350 { "logfile", required_argument, NULL, 'f' },
351 { "config", required_argument, NULL, 'c' },
352 { "debug", no_argument, &do_debug, 1 },
353 { "nolog", no_argument, &do_nolog, 1 },
354 { "runasroot", no_argument, &do_root, 1 },
355 { "version", no_argument, &do_version, 1 },
359 while ((c = getopt_long_only(argc, argv, ":f:", longopts, NULL)) != -1)
364 /* Log filename was set */
365 strlcpy(LogFileName, optarg, MAXBUF);
368 /* Config filename was set */
369 strlcpy(ConfigFileName, optarg, MAXBUF);
372 /* getopt_long_only() set an int variable, just keep going */
375 /* Unknown parameter! DANGER, INTRUDER.... err.... yeah. */
376 printf("Usage: %s [--nofork] [--nolog] [--debug] [--logfile <filename>] [--runasroot] [--version] [--config <config>]\n", argv[0]);
377 Exit(EXIT_STATUS_ARGV);
384 printf("\n%s r%s\n", VERSION, REVISION);
385 Exit(EXIT_STATUS_NOERROR);
393 DWORD ExitCode = WindowsForkStart(this);
400 WSAStartup(MAKEWORD(2,0), &wsadata);
402 ChangeWindowsSpecificPointers(this);
404 strlcpy(Config->MyExecutable,argv[0],MAXBUF);
406 if (!this->OpenLog(argv, argc))
408 printf("ERROR: Could not open logfile %s: %s\n\n", Config->logpath.c_str(), strerror(errno));
409 Exit(EXIT_STATUS_LOG);
412 if (!ServerConfig::FileExists(this->ConfigFileName))
414 printf("ERROR: Cannot open config file: %s\nExiting...\n", this->ConfigFileName);
415 this->Log(DEFAULT,"Unable to open config file %s", this->ConfigFileName);
416 Exit(EXIT_STATUS_CONFIG);
419 printf_c("\033[1;32mInspire Internet Relay Chat Server, compiled %s at %s\n",__DATE__,__TIME__);
420 printf_c("(C) InspIRCd Development Team.\033[0m\n\n");
421 printf_c("Developers:\t\t\033[1;32mBrain, FrostyCoolSlug, w00t, Om, Special, pippijn, peavey, Burlex\033[0m\n");
422 printf_c("Others:\t\t\t\033[1;32mSee /INFO Output\033[0m\n");
424 /* Set the finished argument values */
425 Config->nofork = do_nofork;
426 Config->forcedebug = do_debug;
427 Config->writelog = !do_nolog;
429 this->Modules = new ModuleManager(this);
430 this->stats = new serverstats();
431 this->Timers = new TimerManager(this);
432 this->Parser = new CommandParser(this);
433 this->XLines = new XLineManager(this);
435 Config->ClearStack();
436 Config->Read(true, NULL);
438 this->Modules->modules.resize(255);
439 this->Modules->handles.resize(255);
442 * Initialise SID/UID.
443 * For an explanation as to exactly how this works, and why it works this way, see GetUID().
454 for (const char* x = Config->ServerName; *x; ++x)
456 for (const char* y = Config->ServerDesc; *y; ++y)
463 this->InitialiseUID();
465 /* set up fake client */
466 this->FakeClient = new User(this);
467 this->FakeClient->SetFd(FD_MAGIC_NUMBER);
473 printf("* WARNING * WARNING * WARNING * WARNING * WARNING * \n\n");
474 printf("YOU ARE RUNNING INSPIRCD AS ROOT. THIS IS UNSUPPORTED\n");
475 printf("AND IF YOU ARE HACKED, CRACKED, SPINDLED OR MUTILATED\n");
476 printf("OR ANYTHING ELSE UNEXPECTED HAPPENS TO YOU OR YOUR\n");
477 printf("SERVER, THEN IT IS YOUR OWN FAULT. IF YOU DID NOT MEAN\n");
478 printf("TO START INSPIRCD AS ROOT, HIT CTRL+C NOW AND RESTART\n");
479 printf("THE PROGRAM AS A NORMAL USER. YOU HAVE BEEN WARNED!\n");
480 printf("\nInspIRCd starting in 20 seconds, ctrl+c to abort...\n");
488 if (!this->DaemonSeed())
490 printf("ERROR: could not go into daemon mode. Shutting down.\n");
491 Log(DEFAULT,"ERROR: could not go into daemon mode. Shutting down.");
492 Exit(EXIT_STATUS_FORK);
496 SE->RecoverFromFork();
498 this->Modes = new ModeParser(this);
499 this->AddServerName(Config->ServerName);
501 int bounditems = BindPorts(true, found_ports, pl);
503 for(int t = 0; t < 255; t++)
504 Config->global_implementation[t] = 0;
506 memset(&Config->implement_lists,0,sizeof(Config->implement_lists));
510 this->Res = new DNS(this);
512 this->Modules->LoadAll();
514 /* Just in case no modules were loaded - fix for bug #101 */
515 this->BuildISupport();
516 InitializeDisabledCommands(Config->DisabledCommands, this);
518 if ((Config->ports.size() == 0) && (found_ports > 0))
520 printf("\nERROR: I couldn't bind any ports! Are you sure you didn't start InspIRCd twice?\n");
521 Log(DEFAULT,"ERROR: I couldn't bind any ports! Are you sure you didn't start InspIRCd twice?");
522 Exit(EXIT_STATUS_BIND);
525 if (Config->ports.size() != (unsigned int)found_ports)
527 printf("\nWARNING: Not all your client ports could be bound --\nstarting anyway with %d of %d client ports bound.\n\n", bounditems, found_ports);
528 printf("The following port(s) failed to bind:\n");
530 for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
532 printf("%d.\tIP: %s\tPort: %lu\n", j, i->first.empty() ? "<all>" : i->first.c_str(), (unsigned long)i->second);
538 if (kill(getppid(), SIGTERM) == -1)
540 printf("Error killing parent process: %s\n",strerror(errno));
541 Log(DEFAULT,"Error killing parent process: %s",strerror(errno));
545 if (isatty(0) && isatty(1) && isatty(2))
547 /* We didn't start from a TTY, we must have started from a background process -
548 * e.g. we are restarting, or being launched by cron. Dont kill parent, and dont
559 Log(DEFAULT,"Keeping pseudo-tty open as we are running in the foreground.");
563 WindowsIPC = new IPC(this);
566 WindowsForkKillOwner(this);
571 printf("\nInspIRCd is now running!\n");
572 Log(DEFAULT,"Startup complete.");
574 this->WritePID(Config->PID);
577 /* moved to a function, as UID generation can call this also */
578 void InspIRCd::InitialiseUID()
581 size_t sid = Config->sid;
583 current_uid[0] = sid / 100 + 48;
584 current_uid[1] = ((sid / 10) % 10) + 48;
585 current_uid[2] = sid % 10 + 48;
588 for(i = 3; i < UUID_LENGTH - 1; i++)
589 current_uid[i] = 'A';
599 static time_t uptime;
600 static struct tm * stime;
601 static char window_title[100];
604 /* time() seems to be a pretty expensive syscall, so avoid calling it too much.
605 * Once per loop iteration is pleanty.
610 /* Run background module timers every few seconds
611 * (the docs say modules shouldnt rely on accurate
612 * timing using this event, so we dont have to
613 * time this exactly).
618 WriteOpers("*** \002EH?!\002 -- Time is flowing BACKWARDS in this dimension! Clock drifted backwards %d secs.",abs(OLDTIME-TIME));
619 if ((TIME % 3600) == 0)
621 this->RehashUsersAndChans();
622 FOREACH_MOD_I(this, I_OnGarbageCollect, OnGarbageCollect());
624 Timers->TickTimers(TIME);
625 this->DoBackgroundUserStuff(TIME);
629 XLines->expire_lines();
630 FOREACH_MOD_I(this,I_OnBackgroundTimer,OnBackgroundTimer(TIME));
631 Timers->TickMissedTimers(TIME);
634 /* Same change as in cmd_stats.cpp, use RUSAGE_SELF rather than '0' -- Om */
635 if (!getrusage(RUSAGE_SELF, &ru))
637 gettimeofday(&this->stats->LastSampled, NULL);
638 this->stats->LastCPU = ru.ru_utime;
645 uptime = Time() - startup_time;
646 stime = gmtime(&uptime);
647 snprintf(window_title, 100, "InspIRCd - %u clients, %u accepted connections - Up %u days, %.2u:%.2u:%.2u",
648 LocalUserCount(), stats->statsAccept, stime->tm_yday, stime->tm_hour, stime->tm_min, stime->tm_sec);
649 SetConsoleTitle(window_title);
654 /* Call the socket engine to wait on the active
655 * file descriptors. The socket engine has everything's
656 * descriptors in its list... dns, modules, users,
657 * servers... so its nice and easy, just one call.
658 * This will cause any read or write events to be
659 * dispatched to their handlers.
661 this->SE->DispatchEvents();
663 /* if any users was quit, take them out */
664 this->GlobalCulls.Apply();
666 /* If any inspsockets closed, remove them */
667 this->BufferedSocketCull();
671 this->SignalHandler(s_signal);
679 void InspIRCd::BufferedSocketCull()
681 for (std::map<BufferedSocket*,BufferedSocket*>::iterator x = SocketCull.begin(); x != SocketCull.end(); ++x)
683 SE->DelFd(x->second);
690 /**********************************************************************************/
693 * An ircd in four lines! bwahahaha. ahahahahaha. ahahah *cough*.
696 int ircd(int argc, char ** argv)
698 SI = new InspIRCd(argc, argv);
699 mysig = &SI->s_signal;
707 int main(int argc, char ** argv)
714 int main(int argc, char** argv)
716 return ircd(argc,argv);
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 if (!Config->global_implementation[I_OnCheckReady])
729 for (int i = 0; i <= this->Modules->GetCount(); i++)
731 if (Config->implement_lists[i][I_OnCheckReady])
733 int res = this->Modules->modules[i]->OnCheckReady(user);
741 time_t InspIRCd::Time(bool delta)
744 return TIME + time_delta;
748 int InspIRCd::SetTimeDelta(int delta)
750 int old = time_delta;
752 this->Log(DEBUG, "Time delta set to %d (was %d)", time_delta, old);
756 void InspIRCd::AddLocalClone(User* user)
758 clonemap::iterator x = local_clones.find(user->GetIPString());
759 if (x != local_clones.end())
762 local_clones[user->GetIPString()] = 1;
765 void InspIRCd::AddGlobalClone(User* user)
767 clonemap::iterator y = global_clones.find(user->GetIPString());
768 if (y != global_clones.end())
771 global_clones[user->GetIPString()] = 1;
774 int InspIRCd::GetTimeDelta()
779 void InspIRCd::SetSignal(int signal)