2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2012 William Pitcock <nenolod@dereferenced.org>
5 * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
6 * Copyright (C) 2003-2008 Craig Edwards <craigedwards@brainbox.cc>
7 * Copyright (C) 2008 Uli Schlachter <psychon@znc.in>
8 * Copyright (C) 2006-2008 Robin Burchell <robin+git@viroteck.net>
9 * Copyright (C) 2006-2007 Oliver Lupton <oliverlupton@gmail.com>
10 * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
11 * Copyright (C) 2007 Burlex <???@???>
12 * Copyright (C) 2003 Craig McLure <craig@chatspike.net>
13 * Copyright (C) 2003 randomdan <???@???>
15 * This file is part of InspIRCd. InspIRCd is free software: you can
16 * redistribute it and/or modify it under the terms of the GNU General Public
17 * License as published by the Free Software Foundation, version 2.
19 * This program is distributed in the hope that it will be useful, but WITHOUT
20 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
21 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
24 * You should have received a copy of the GNU General Public License
25 * along with this program. If not, see <http://www.gnu.org/licenses/>.
34 #include <sys/resource.h>
37 #include <pwd.h> // setuid
38 #include <grp.h> // setgid
40 WORD g_wOriginalColors;
41 WORD g_wBackgroundColor;
48 #include "exitcodes.h"
50 InspIRCd* ServerInstance = NULL;
52 /** Seperate from the other casemap tables so that code *can* still exclusively rely on RFC casemapping
55 * This is provided as a pointer so that modules can change it to their custom mapping tables,
56 * e.g. for national character support.
58 unsigned const char *national_case_insensitive_map = rfc_case_insensitive_map;
61 /* Moved from exitcodes.h -- due to duplicate symbols -- Burlex
62 * XXX this is a bit ugly. -- w00t
64 const char* ExitCodes[] =
68 "Config file error", // 2
70 "POSIX fork failed", // 4
71 "Bad commandline parameters", // 5
72 "Can't write PID file", // 6
73 "SocketEngine could not initialize", // 7
74 "Refusing to start up as root", // 8
75 "Couldn't load module on startup", // 9
76 "Received SIGTERM" // 10
79 template<typename T> static void DeleteZero(T*&n)
86 void InspIRCd::Cleanup()
88 // Close all listening sockets
89 for (unsigned int i = 0; i < ports.size(); i++)
96 // Tell modules that we're shutting down.
97 const std::string quitmsg = "Server shutting down";
98 FOREACH_MOD(OnShutdown, (quitmsg));
100 // Disconnect all local users
101 const UserManager::LocalList& list = Users.GetLocalUsers();
102 while (!list.empty())
103 ServerInstance->Users.QuitUser(list.front(), quitmsg);
106 Modules->UnloadAll();
108 /* Delete objects dynamically allocated in constructor (destructor would be more appropriate, but we're likely exiting) */
109 /* Must be deleted before modes as it decrements modelines */
112 delete FakeClient->server;
115 DeleteZero(this->FakeClient);
116 DeleteZero(this->XLines);
117 DeleteZero(this->Config);
118 SocketEngine::Deinit();
122 void InspIRCd::SetSignals()
125 signal(SIGALRM, SIG_IGN);
126 signal(SIGCHLD, SIG_IGN);
127 signal(SIGHUP, InspIRCd::SetSignal);
128 signal(SIGPIPE, SIG_IGN);
129 signal(SIGUSR1, SIG_IGN);
130 signal(SIGUSR2, SIG_IGN);
131 signal(SIGXFSZ, SIG_IGN);
133 signal(SIGTERM, InspIRCd::SetSignal);
136 // Required for returning the proper value of EXIT_SUCCESS for the parent process
137 static void VoidSignalHandler(int signalreceived)
139 exit(EXIT_STATUS_NOERROR);
142 bool InspIRCd::DaemonSeed()
145 std::cout << "InspIRCd Process ID: " << con_green << GetCurrentProcessId() << con_reset << std::endl;
148 // Do not use exit() here: It will exit with status SIGTERM which would break e.g. daemon scripts
149 signal(SIGTERM, VoidSignalHandler);
151 int childpid = fork();
154 else if (childpid > 0)
156 /* We wait here for the child process to kill us,
157 * so that the shell prompt doesnt come back over
159 * Sending a kill with a signal of 0 just checks
160 * if the child pid is still around. If theyre not,
161 * they threw an error and we should give up.
163 while (kill(childpid, 0) != -1)
165 exit(EXIT_STATUS_NOERROR);
168 std::cout << "InspIRCd Process ID: " << con_green << getpid() << con_reset << std::endl;
170 signal(SIGTERM, InspIRCd::SetSignal);
173 if (getrlimit(RLIMIT_CORE, &rl) == -1)
175 this->Logs->Log("STARTUP", LOG_DEFAULT, "Failed to getrlimit()!");
178 rl.rlim_cur = rl.rlim_max;
180 if (setrlimit(RLIMIT_CORE, &rl) == -1)
181 this->Logs->Log("STARTUP", LOG_DEFAULT, "setrlimit() failed, cannot increase coredump size.");
187 void InspIRCd::WritePID(const std::string& filename, bool exitonfail)
190 if (!ServerInstance->Config->cmdline.writepid)
192 this->Logs->Log("STARTUP", LOG_DEFAULT, "--nopid specified on command line; PID file not written.");
196 std::string fname = ServerInstance->Config->Paths.PrependData(filename.empty() ? "inspircd.pid" : filename);
197 std::ofstream outfile(fname.c_str());
198 if (outfile.is_open())
206 std::cout << "Failed to write PID-file '" << fname << "', exiting." << std::endl;
207 this->Logs->Log("STARTUP", LOG_DEFAULT, "Failed to write PID-file '%s'%s", fname.c_str(), (exitonfail ? ", exiting." : ""));
209 Exit(EXIT_STATUS_PID);
214 InspIRCd::InspIRCd(int argc, char** argv) :
215 ConfigFileName(INSPIRCD_CONFIG_PATH "/inspircd.conf"),
216 PI(&DefaultProtocolInterface),
218 /* Functor pointer initialisation.
220 * THIS MUST MATCH THE ORDER OF DECLARATION OF THE FUNCTORS, e.g. the methods
221 * themselves within the class.
223 GenRandom(&DefaultGenRandom),
224 IsChannel(&DefaultIsChannel),
225 IsNick(&DefaultIsNick),
226 IsIdent(&DefaultIsIdent)
228 ServerInstance = this;
231 // Flag variables passed to getopt_long() later
232 int do_version = 0, do_nofork = 0, do_debug = 0,
233 do_nolog = 0, do_nopid = 0, do_root = 0;
235 // Initialize so that if we exit before proper initialization they're not deleted
238 this->ConfigThread = NULL;
239 this->FakeClient = NULL;
242 this->startup_time = TIME.tv_sec;
244 SocketEngine::Init();
246 this->Config = new ServerConfig;
247 dynamic_reference_base::reset_all();
248 this->XLines = new XLineManager;
250 this->Config->cmdline.argv = argv;
251 this->Config->cmdline.argc = argc;
254 srand(TIME.tv_nsec ^ TIME.tv_sec);
256 // Initialize the console values
257 g_hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
258 CONSOLE_SCREEN_BUFFER_INFO bufinf;
259 if(GetConsoleScreenBufferInfo(g_hStdout, &bufinf))
261 g_wOriginalColors = bufinf.wAttributes & 0x00FF;
262 g_wBackgroundColor = bufinf.wAttributes & 0x00F0;
266 g_wOriginalColors = FOREGROUND_RED|FOREGROUND_BLUE|FOREGROUND_GREEN;
267 g_wBackgroundColor = 0;
270 srandom(TIME.tv_nsec ^ TIME.tv_sec);
274 ServiceProvider* provs[] =
276 &rfcevents.numeric, &rfcevents.join, &rfcevents.part, &rfcevents.kick, &rfcevents.quit, &rfcevents.nick,
277 &rfcevents.mode, &rfcevents.topic, &rfcevents.privmsg, &rfcevents.invite, &rfcevents.ping, &rfcevents.pong,
280 Modules.AddServices(provs, sizeof(provs)/sizeof(provs[0]));
283 struct option longopts[] =
285 { "nofork", no_argument, &do_nofork, 1 },
286 { "config", required_argument, NULL, 'c' },
287 { "debug", no_argument, &do_debug, 1 },
288 { "nolog", no_argument, &do_nolog, 1 },
289 { "nopid", no_argument, &do_nopid, 1 },
290 { "runasroot", no_argument, &do_root, 1 },
291 { "version", no_argument, &do_version, 1 },
297 while ((c = getopt_long(argc, argv, ":c:", longopts, &index)) != -1)
302 /* Config filename was set */
303 ConfigFileName = optarg;
305 TCHAR configPath[MAX_PATH + 1];
306 if (GetFullPathName(optarg, MAX_PATH, configPath, NULL) > 0)
307 ConfigFileName = configPath;
309 char configPath[PATH_MAX + 1];
310 if (realpath(optarg, configPath))
311 ConfigFileName = configPath;
315 /* getopt_long_only() set an int variable, just keep going */
318 /* Unknown parameter */
320 /* Fall through to handle other weird values too */
321 std::cout << "Unknown parameter '" << argv[optind-1] << "'" << std::endl;
322 std::cout << "Usage: " << argv[0] << " [--nofork] [--nolog] [--nopid] [--debug] [--config <config>]" << std::endl <<
323 std::string(static_cast<size_t>(8+strlen(argv[0])), ' ') << "[--runasroot] [--version]" << std::endl;
324 Exit(EXIT_STATUS_ARGV);
331 std::cout << std::endl << INSPIRCD_VERSION << std::endl;
332 Exit(EXIT_STATUS_NOERROR);
338 WSAStartup(MAKEWORD(2,2), &wsadata);
341 /* Set the finished argument values */
342 Config->cmdline.nofork = (do_nofork != 0);
343 Config->cmdline.forcedebug = (do_debug != 0);
344 Config->cmdline.writelog = !do_nolog;
345 Config->cmdline.writepid = !do_nopid;
349 FileWriter* fw = new FileWriter(stdout, 1);
350 FileLogStream* fls = new FileLogStream(LOG_RAWIO, fw);
351 Logs->AddLogTypes("*", fls, true);
354 if (!FileSystem::FileExists(ConfigFileName))
357 /* Windows can (and defaults to) hide file extensions, so let's play a bit nice for windows users. */
358 std::string txtconf = this->ConfigFileName;
359 txtconf.append(".txt");
361 if (FileSystem::FileExists(txtconf))
363 ConfigFileName = txtconf;
368 std::cout << "ERROR: Cannot open config file: " << ConfigFileName << std::endl << "Exiting..." << std::endl;
369 this->Logs->Log("STARTUP", LOG_DEFAULT, "Unable to open config file %s", ConfigFileName.c_str());
370 Exit(EXIT_STATUS_CONFIG);
374 std::cout << con_green << "InspIRCd - Internet Relay Chat Daemon" << con_reset << std::endl;
375 std::cout << "For contributors & authors: " << con_green << "See /INFO Output" << con_reset << std::endl;
382 std::cout << "* WARNING * WARNING * WARNING * WARNING * WARNING *" << std::endl
383 << "YOU ARE RUNNING INSPIRCD AS ROOT. THIS IS UNSUPPORTED" << std::endl
384 << "AND IF YOU ARE HACKED, CRACKED, SPINDLED OR MUTILATED" << std::endl
385 << "OR ANYTHING ELSE UNEXPECTED HAPPENS TO YOU OR YOUR" << std::endl
386 << "SERVER, THEN IT IS YOUR OWN FAULT. IF YOU DID NOT MEAN" << std::endl
387 << "TO START INSPIRCD AS ROOT, HIT CTRL+C NOW AND RESTART" << std::endl
388 << "THE PROGRAM AS A NORMAL USER. YOU HAVE BEEN WARNED!" << std::endl << std::endl
389 << "InspIRCd starting in 20 seconds, ctrl+c to abort..." << std::endl;
396 if (!Config->cmdline.nofork)
398 if (!this->DaemonSeed())
400 std::cout << "ERROR: could not go into daemon mode. Shutting down." << std::endl;
401 Logs->Log("STARTUP", LOG_DEFAULT, "ERROR: could not go into daemon mode. Shutting down.");
402 Exit(EXIT_STATUS_FORK);
406 SocketEngine::RecoverFromFork();
408 /* During startup we read the configuration now, not in
411 this->Config->Read();
412 this->Config->Apply(NULL, "");
413 Logs->OpenFileLogs();
415 // If we don't have a SID, generate one based on the server name and the server description
416 if (Config->sid.empty())
417 Config->sid = UIDGenerator::GenerateSID(Config->ServerName, Config->ServerDesc);
419 // Initialize the UID generator with our sid
420 this->UIDGen.init(Config->sid);
422 // Create the server user for this server
423 this->FakeClient = new FakeUser(Config->sid, Config->ServerName, Config->ServerDesc);
425 // This is needed as all new XLines are marked pending until ApplyLines() is called
426 this->XLines->ApplyLines();
428 int bounditems = BindPorts(pl);
430 std::cout << std::endl;
432 this->Modules->LoadAll();
434 // Build ISupport as ModuleManager::LoadAll() does not do it
435 this->ISupport.Build();
439 std::cout << std::endl << "WARNING: Not all your client ports could be bound -- " << std::endl << "starting anyway with " << bounditems
440 << " of " << bounditems + (int)pl.size() << " client ports bound." << std::endl << std::endl;
441 std::cout << "The following port(s) failed to bind:" << std::endl << std::endl;
443 for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
445 std::cout << j << ".\tAddress: " << i->first.str() << " \tReason: " << strerror(i->second) << std::endl;
448 std::cout << std::endl << "Hint: Try using a public IP instead of blank or *" << std::endl;
451 std::cout << "InspIRCd is now running as '" << Config->ServerName << "'[" << Config->GetSID() << "] with " << SocketEngine::GetMaxFds() << " max open sockets" << std::endl;
454 if (!Config->cmdline.nofork)
456 if (kill(getppid(), SIGTERM) == -1)
458 std::cout << "Error killing parent process: " << strerror(errno) << std::endl;
459 Logs->Log("STARTUP", LOG_DEFAULT, "Error killing parent process: %s",strerror(errno));
463 /* Explicitly shut down stdio's stdin/stdout/stderr.
465 * The previous logic here was to only do this if stdio was connected to a controlling
466 * terminal. However, we must do this always to avoid information leaks and other
467 * problems related to stdio.
469 * The only exception is if we are in debug mode.
473 if ((!do_nofork) && (!Config->cmdline.forcedebug))
475 int fd = open("/dev/null", O_RDWR);
481 if (dup2(fd, STDIN_FILENO) < 0)
482 Logs->Log("STARTUP", LOG_DEFAULT, "Failed to dup /dev/null to stdin.");
483 if (dup2(fd, STDOUT_FILENO) < 0)
484 Logs->Log("STARTUP", LOG_DEFAULT, "Failed to dup /dev/null to stdout.");
485 if (dup2(fd, STDERR_FILENO) < 0)
486 Logs->Log("STARTUP", LOG_DEFAULT, "Failed to dup /dev/null to stderr.");
491 Logs->Log("STARTUP", LOG_DEFAULT, "Keeping pseudo-tty open as we are running in the foreground.");
494 /* Set win32 service as running, if we are running as a service */
503 QueryPerformanceFrequency(&stats.QPFrequency);
506 Logs->Log("STARTUP", LOG_DEFAULT, "Startup complete as '%s'[%s], %lu max open sockets", Config->ServerName.c_str(),Config->GetSID().c_str(), SocketEngine::GetMaxFds());
509 ConfigTag* security = Config->ConfValue("security");
511 const std::string SetGroup = security->getString("runasgroup");
512 if (!SetGroup.empty())
515 if (setgroups(0, NULL) == -1)
517 this->Logs->Log("STARTUP", LOG_DEFAULT, "setgroups() failed (wtf?): %s", strerror(errno));
518 exit(EXIT_STATUS_CONFIG);
521 struct group* g = getgrnam(SetGroup.c_str());
524 this->Logs->Log("STARTUP", LOG_DEFAULT, "getgrnam(%s) failed (wrong group?): %s", SetGroup.c_str(), strerror(errno));
525 exit(EXIT_STATUS_CONFIG);
528 if (setgid(g->gr_gid) == -1)
530 this->Logs->Log("STARTUP", LOG_DEFAULT, "setgid(%d) failed (wrong group?): %s", g->gr_gid, strerror(errno));
531 exit(EXIT_STATUS_CONFIG);
535 const std::string SetUser = security->getString("runasuser");
536 if (!SetUser.empty())
539 struct passwd* u = getpwnam(SetUser.c_str());
542 this->Logs->Log("STARTUP", LOG_DEFAULT, "getpwnam(%s) failed (wrong user?): %s", SetUser.c_str(), strerror(errno));
543 exit(EXIT_STATUS_CONFIG);
546 if (setuid(u->pw_uid) == -1)
548 this->Logs->Log("STARTUP", LOG_DEFAULT, "setuid(%d) failed (wrong user?): %s", u->pw_uid, strerror(errno));
549 exit(EXIT_STATUS_CONFIG);
553 this->WritePID(Config->PID);
557 void InspIRCd::UpdateTime()
563 TIME.tv_sec = time(NULL);
564 TIME.tv_nsec = st.wMilliseconds;
566 #ifdef HAS_CLOCK_GETTIME
567 clock_gettime(CLOCK_REALTIME, &TIME);
570 gettimeofday(&tv, NULL);
571 TIME.tv_sec = tv.tv_sec;
572 TIME.tv_nsec = tv.tv_usec * 1000;
580 time_t OLDTIME = TIME.tv_sec;
588 /* Check if there is a config thread which has finished executing but has not yet been freed */
589 if (this->ConfigThread && this->ConfigThread->IsDone())
591 /* Rehash has completed */
592 this->Logs->Log("CONFIG", LOG_DEBUG, "Detected ConfigThread exiting, tidying up...");
594 this->ConfigThread->Finish();
596 ConfigThread->join();
603 /* Run background module timers every few seconds
604 * (the docs say modules shouldnt rely on accurate
605 * timing using this event, so we dont have to
606 * time this exactly).
608 if (TIME.tv_sec != OLDTIME)
611 getrusage(RUSAGE_SELF, &ru);
612 stats.LastSampled = TIME;
613 stats.LastCPU = ru.ru_utime;
615 if(QueryPerformanceCounter(&stats.LastSampled))
617 FILETIME CreationTime;
621 GetProcessTimes(GetCurrentProcess(), &CreationTime, &ExitTime, &KernelTime, &UserTime);
622 stats.LastCPU.dwHighDateTime = KernelTime.dwHighDateTime + UserTime.dwHighDateTime;
623 stats.LastCPU.dwLowDateTime = KernelTime.dwLowDateTime + UserTime.dwLowDateTime;
627 if (Config->TimeSkipWarn)
629 time_t timediff = TIME.tv_sec - OLDTIME;
631 if (timediff > Config->TimeSkipWarn)
632 SNO->WriteToSnoMask('a', "\002Performance warning!\002 Server clock jumped forwards by %lu seconds!", timediff);
634 else if (timediff < -Config->TimeSkipWarn)
635 SNO->WriteToSnoMask('a', "\002Performance warning!\002 Server clock jumped backwards by %lu seconds!", labs(timediff));
638 OLDTIME = TIME.tv_sec;
640 if ((TIME.tv_sec % 3600) == 0)
642 FOREACH_MOD(OnGarbageCollect, ());
644 // HACK: ELines are not expired properly at the moment but it can't be fixed as
645 // the 2.0 XLine system is a spaghetti nightmare. Instead we skip over expired
646 // ELines in XLineManager::CheckELines() and expire them here instead.
650 Timers.TickTimers(TIME.tv_sec);
651 Users->DoBackgroundUserStuff();
653 if ((TIME.tv_sec % 5) == 0)
655 FOREACH_MOD(OnBackgroundTimer, (TIME.tv_sec));
656 SNO->FlushSnotices();
660 /* Call the socket engine to wait on the active
661 * file descriptors. The socket engine has everything's
662 * descriptors in its list... dns, modules, users,
663 * servers... so its nice and easy, just one call.
664 * This will cause any read or write events to be
665 * dispatched to their handlers.
667 SocketEngine::DispatchTrialWrites();
668 SocketEngine::DispatchEvents();
670 /* if any users were quit, take them out */
676 this->SignalHandler(s_signal);
682 sig_atomic_t InspIRCd::s_signal = 0;
684 void InspIRCd::SetSignal(int signal)
689 /* On posix systems, the flow of the program starts right here, with
690 * ENTRYPOINT being a #define that defines main(). On Windows, ENTRYPOINT
691 * defines smain() and the real main() is in the service code under
692 * win32service.cpp. This allows the service control manager to control
693 * the process where we are running as a windows service.
697 new InspIRCd(argc, argv);
698 ServerInstance->Run();
699 delete ServerInstance;