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/>.
35 #include <sys/resource.h>
38 #include <pwd.h> // setuid
39 #include <grp.h> // setgid
41 WORD g_wOriginalColors;
42 WORD g_wBackgroundColor;
49 #include "exitcodes.h"
51 InspIRCd* ServerInstance = NULL;
53 /** Seperate from the other casemap tables so that code *can* still exclusively rely on RFC casemapping
56 * This is provided as a pointer so that modules can change it to their custom mapping tables,
57 * e.g. for national character support.
59 unsigned const char *national_case_insensitive_map = rfc_case_insensitive_map;
62 /* Moved from exitcodes.h -- due to duplicate symbols -- Burlex
63 * XXX this is a bit ugly. -- w00t
65 const char* ExitCodes[] =
69 "Config file error", // 2
71 "POSIX fork failed", // 4
72 "Bad commandline parameters", // 5
73 "Can't write PID file", // 6
74 "SocketEngine could not initialize", // 7
75 "Refusing to start up as root", // 8
76 "Couldn't load module on startup", // 9
77 "Received SIGTERM" // 10
80 template<typename T> static void DeleteZero(T*&n)
87 void InspIRCd::Cleanup()
89 // Close all listening sockets
90 for (unsigned int i = 0; i < ports.size(); i++)
97 // Disconnect all local users
98 const std::string quitmsg = "Server shutting down";
99 const UserManager::LocalList& list = Users.GetLocalUsers();
100 while (!list.empty())
101 ServerInstance->Users.QuitUser(list.front(), quitmsg);
104 Modules->UnloadAll();
106 /* Delete objects dynamically allocated in constructor (destructor would be more appropriate, but we're likely exiting) */
107 /* Must be deleted before modes as it decrements modelines */
110 delete FakeClient->server;
113 DeleteZero(this->FakeClient);
114 DeleteZero(this->XLines);
115 DeleteZero(this->Config);
116 SocketEngine::Deinit();
120 void InspIRCd::SetSignals()
123 signal(SIGALRM, SIG_IGN);
124 signal(SIGHUP, InspIRCd::SetSignal);
125 signal(SIGPIPE, SIG_IGN);
126 signal(SIGCHLD, SIG_IGN);
127 /* We want E2BIG not a signal! */
128 signal(SIGXFSZ, SIG_IGN);
130 signal(SIGTERM, InspIRCd::SetSignal);
133 // Required for returning the proper value of EXIT_SUCCESS for the parent process
134 static void VoidSignalHandler(int signalreceived)
136 exit(EXIT_STATUS_NOERROR);
139 bool InspIRCd::DaemonSeed()
142 std::cout << "InspIRCd Process ID: " << con_green << GetCurrentProcessId() << con_reset << std::endl;
145 // Do not use exit() here: It will exit with status SIGTERM which would break e.g. daemon scripts
146 signal(SIGTERM, VoidSignalHandler);
148 int childpid = fork();
151 else if (childpid > 0)
153 /* We wait here for the child process to kill us,
154 * so that the shell prompt doesnt come back over
156 * Sending a kill with a signal of 0 just checks
157 * if the child pid is still around. If theyre not,
158 * they threw an error and we should give up.
160 while (kill(childpid, 0) != -1)
162 exit(EXIT_STATUS_NOERROR);
165 std::cout << "InspIRCd Process ID: " << con_green << getpid() << con_reset << std::endl;
167 signal(SIGTERM, InspIRCd::SetSignal);
170 if (getrlimit(RLIMIT_CORE, &rl) == -1)
172 this->Logs->Log("STARTUP", LOG_DEFAULT, "Failed to getrlimit()!");
175 rl.rlim_cur = rl.rlim_max;
177 if (setrlimit(RLIMIT_CORE, &rl) == -1)
178 this->Logs->Log("STARTUP", LOG_DEFAULT, "setrlimit() failed, cannot increase coredump size.");
184 void InspIRCd::WritePID(const std::string& filename, bool exitonfail)
187 if (!ServerInstance->Config->cmdline.writepid)
189 this->Logs->Log("STARTUP", LOG_DEFAULT, "--nopid specified on command line; PID file not written.");
193 std::string fname(filename);
195 fname = ServerInstance->Config->Paths.PrependData("inspircd.pid");
196 std::ofstream outfile(fname.c_str());
197 if (outfile.is_open())
205 std::cout << "Failed to write PID-file '" << fname << "', exiting." << std::endl;
206 this->Logs->Log("STARTUP", LOG_DEFAULT, "Failed to write PID-file '%s'%s", fname.c_str(), (exitonfail ? ", exiting." : ""));
208 Exit(EXIT_STATUS_PID);
213 InspIRCd::InspIRCd(int argc, char** argv) :
214 ConfigFileName(INSPIRCD_CONFIG_PATH "/inspircd.conf"),
215 PI(&DefaultProtocolInterface),
217 /* Functor pointer initialisation.
219 * THIS MUST MATCH THE ORDER OF DECLARATION OF THE FUNCTORS, e.g. the methods
220 * themselves within the class.
222 GenRandom(&DefaultGenRandom),
223 IsChannel(&DefaultIsChannel),
224 IsNick(&DefaultIsNick),
225 IsIdent(&DefaultIsIdent)
227 ServerInstance = this;
230 // Flag variables passed to getopt_long() later
231 int do_version = 0, do_nofork = 0, do_debug = 0,
232 do_nolog = 0, do_nopid = 0, do_root = 0;
234 // Initialize so that if we exit before proper initialization they're not deleted
237 this->ConfigThread = NULL;
238 this->FakeClient = NULL;
241 this->startup_time = TIME.tv_sec;
243 SocketEngine::Init();
245 this->Config = new ServerConfig;
246 dynamic_reference_base::reset_all();
247 this->XLines = new XLineManager;
249 this->Config->cmdline.argv = argv;
250 this->Config->cmdline.argc = argc;
253 srand(TIME.tv_nsec ^ TIME.tv_sec);
255 // Initialize the console values
256 g_hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
257 CONSOLE_SCREEN_BUFFER_INFO bufinf;
258 if(GetConsoleScreenBufferInfo(g_hStdout, &bufinf))
260 g_wOriginalColors = bufinf.wAttributes & 0x00FF;
261 g_wBackgroundColor = bufinf.wAttributes & 0x00F0;
265 g_wOriginalColors = FOREGROUND_RED|FOREGROUND_BLUE|FOREGROUND_GREEN;
266 g_wBackgroundColor = 0;
269 srandom(TIME.tv_nsec ^ TIME.tv_sec);
273 ServiceProvider* provs[] =
275 &rfcevents.numeric, &rfcevents.join, &rfcevents.part, &rfcevents.kick, &rfcevents.quit, &rfcevents.nick,
276 &rfcevents.mode, &rfcevents.topic, &rfcevents.privmsg, &rfcevents.invite, &rfcevents.ping, &rfcevents.pong,
279 Modules.AddServices(provs, sizeof(provs)/sizeof(provs[0]));
282 struct option longopts[] =
284 { "nofork", no_argument, &do_nofork, 1 },
285 { "config", required_argument, NULL, 'c' },
286 { "debug", no_argument, &do_debug, 1 },
287 { "nolog", no_argument, &do_nolog, 1 },
288 { "nopid", no_argument, &do_nopid, 1 },
289 { "runasroot", no_argument, &do_root, 1 },
290 { "version", no_argument, &do_version, 1 },
296 while ((c = getopt_long(argc, argv, ":c:", longopts, &index)) != -1)
301 /* Config filename was set */
302 ConfigFileName = optarg;
304 TCHAR configPath[MAX_PATH + 1];
305 if (GetFullPathName(optarg, MAX_PATH, configPath, NULL) > 0)
306 ConfigFileName = configPath;
308 char configPath[PATH_MAX + 1];
309 if (realpath(optarg, configPath))
310 ConfigFileName = configPath;
314 /* getopt_long_only() set an int variable, just keep going */
317 /* Unknown parameter */
319 /* Fall through to handle other weird values too */
320 std::cout << "Unknown parameter '" << argv[optind-1] << "'" << std::endl;
321 std::cout << "Usage: " << argv[0] << " [--nofork] [--nolog] [--nopid] [--debug] [--config <config>]" << std::endl <<
322 std::string(static_cast<size_t>(8+strlen(argv[0])), ' ') << "[--runasroot] [--version]" << std::endl;
323 Exit(EXIT_STATUS_ARGV);
330 std::cout << std::endl << INSPIRCD_VERSION << std::endl;
331 Exit(EXIT_STATUS_NOERROR);
337 WSAStartup(MAKEWORD(2,2), &wsadata);
340 /* Set the finished argument values */
341 Config->cmdline.nofork = (do_nofork != 0);
342 Config->cmdline.forcedebug = (do_debug != 0);
343 Config->cmdline.writelog = !do_nolog;
344 Config->cmdline.writepid = !do_nopid;
348 FileWriter* fw = new FileWriter(stdout, 1);
349 FileLogStream* fls = new FileLogStream(LOG_RAWIO, fw);
350 Logs->AddLogTypes("*", fls, true);
353 if (!FileSystem::FileExists(ConfigFileName))
356 /* Windows can (and defaults to) hide file extensions, so let's play a bit nice for windows users. */
357 std::string txtconf = this->ConfigFileName;
358 txtconf.append(".txt");
360 if (FileSystem::FileExists(txtconf))
362 ConfigFileName = txtconf;
367 std::cout << "ERROR: Cannot open config file: " << ConfigFileName << std::endl << "Exiting..." << std::endl;
368 this->Logs->Log("STARTUP", LOG_DEFAULT, "Unable to open config file %s", ConfigFileName.c_str());
369 Exit(EXIT_STATUS_CONFIG);
373 std::cout << con_green << "InspIRCd - Internet Relay Chat Daemon" << con_reset << std::endl;
374 std::cout << "For contributors & authors: " << con_green << "See /INFO Output" << con_reset << std::endl;
381 std::cout << "* WARNING * WARNING * WARNING * WARNING * WARNING *" << std::endl
382 << "YOU ARE RUNNING INSPIRCD AS ROOT. THIS IS UNSUPPORTED" << std::endl
383 << "AND IF YOU ARE HACKED, CRACKED, SPINDLED OR MUTILATED" << std::endl
384 << "OR ANYTHING ELSE UNEXPECTED HAPPENS TO YOU OR YOUR" << std::endl
385 << "SERVER, THEN IT IS YOUR OWN FAULT. IF YOU DID NOT MEAN" << std::endl
386 << "TO START INSPIRCD AS ROOT, HIT CTRL+C NOW AND RESTART" << std::endl
387 << "THE PROGRAM AS A NORMAL USER. YOU HAVE BEEN WARNED!" << std::endl << std::endl
388 << "InspIRCd starting in 20 seconds, ctrl+c to abort..." << std::endl;
395 if (!Config->cmdline.nofork)
397 if (!this->DaemonSeed())
399 std::cout << "ERROR: could not go into daemon mode. Shutting down." << std::endl;
400 Logs->Log("STARTUP", LOG_DEFAULT, "ERROR: could not go into daemon mode. Shutting down.");
401 Exit(EXIT_STATUS_FORK);
405 SocketEngine::RecoverFromFork();
407 /* During startup we read the configuration now, not in
410 this->Config->Read();
411 this->Config->Apply(NULL, "");
412 Logs->OpenFileLogs();
414 // If we don't have a SID, generate one based on the server name and the server description
415 if (Config->sid.empty())
416 Config->sid = UIDGenerator::GenerateSID(Config->ServerName, Config->ServerDesc);
418 // Initialize the UID generator with our sid
419 this->UIDGen.init(Config->sid);
421 // Create the server user for this server
422 this->FakeClient = new FakeUser(Config->sid, Config->ServerName, Config->ServerDesc);
424 // This is needed as all new XLines are marked pending until ApplyLines() is called
425 this->XLines->ApplyLines();
427 int bounditems = BindPorts(pl);
429 std::cout << std::endl;
431 this->Modules->LoadAll();
433 // Build ISupport as ModuleManager::LoadAll() does not do it
434 this->ISupport.Build();
438 std::cout << std::endl << "WARNING: Not all your client ports could be bound -- " << std::endl << "starting anyway with " << bounditems
439 << " of " << bounditems + (int)pl.size() << " client ports bound." << std::endl << std::endl;
440 std::cout << "The following port(s) failed to bind:" << std::endl << std::endl;
442 for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
444 std::cout << j << ".\tAddress: " << i->first.str() << " \tReason: " << strerror(i->second) << std::endl;
447 std::cout << std::endl << "Hint: Try using a public IP instead of blank or *" << std::endl;
450 std::cout << "InspIRCd is now running as '" << Config->ServerName << "'[" << Config->GetSID() << "] with " << SocketEngine::GetMaxFds() << " max open sockets" << std::endl;
453 if (!Config->cmdline.nofork)
455 if (kill(getppid(), SIGTERM) == -1)
457 std::cout << "Error killing parent process: " << strerror(errno) << std::endl;
458 Logs->Log("STARTUP", LOG_DEFAULT, "Error killing parent process: %s",strerror(errno));
462 /* Explicitly shut down stdio's stdin/stdout/stderr.
464 * The previous logic here was to only do this if stdio was connected to a controlling
465 * terminal. However, we must do this always to avoid information leaks and other
466 * problems related to stdio.
468 * The only exception is if we are in debug mode.
472 if ((!do_nofork) && (!Config->cmdline.forcedebug))
474 int fd = open("/dev/null", O_RDWR);
480 if (dup2(fd, STDIN_FILENO) < 0)
481 Logs->Log("STARTUP", LOG_DEFAULT, "Failed to dup /dev/null to stdin.");
482 if (dup2(fd, STDOUT_FILENO) < 0)
483 Logs->Log("STARTUP", LOG_DEFAULT, "Failed to dup /dev/null to stdout.");
484 if (dup2(fd, STDERR_FILENO) < 0)
485 Logs->Log("STARTUP", LOG_DEFAULT, "Failed to dup /dev/null to stderr.");
490 Logs->Log("STARTUP", LOG_DEFAULT, "Keeping pseudo-tty open as we are running in the foreground.");
493 /* Set win32 service as running, if we are running as a service */
502 QueryPerformanceFrequency(&stats.QPFrequency);
505 Logs->Log("STARTUP", LOG_DEFAULT, "Startup complete as '%s'[%s], %lu max open sockets", Config->ServerName.c_str(),Config->GetSID().c_str(), SocketEngine::GetMaxFds());
508 ConfigTag* security = Config->ConfValue("security");
510 const std::string SetGroup = security->getString("runasgroup");
511 if (!SetGroup.empty())
514 if (setgroups(0, NULL) == -1)
516 this->Logs->Log("STARTUP", LOG_DEFAULT, "setgroups() failed (wtf?): %s", strerror(errno));
517 exit(EXIT_STATUS_CONFIG);
520 struct group* g = getgrnam(SetGroup.c_str());
523 this->Logs->Log("STARTUP", LOG_DEFAULT, "getgrnam(%s) failed (wrong group?): %s", SetGroup.c_str(), strerror(errno));
524 exit(EXIT_STATUS_CONFIG);
527 if (setgid(g->gr_gid) == -1)
529 this->Logs->Log("STARTUP", LOG_DEFAULT, "setgid(%d) failed (wrong group?): %s", g->gr_gid, strerror(errno));
530 exit(EXIT_STATUS_CONFIG);
534 const std::string SetUser = security->getString("runasuser");
535 if (!SetUser.empty())
538 struct passwd* u = getpwnam(SetUser.c_str());
541 this->Logs->Log("STARTUP", LOG_DEFAULT, "getpwnam(%s) failed (wrong user?): %s", SetUser.c_str(), strerror(errno));
542 exit(EXIT_STATUS_CONFIG);
545 if (setuid(u->pw_uid) == -1)
547 this->Logs->Log("STARTUP", LOG_DEFAULT, "setuid(%d) failed (wrong user?): %s", u->pw_uid, strerror(errno));
548 exit(EXIT_STATUS_CONFIG);
552 this->WritePID(Config->PID);
556 void InspIRCd::UpdateTime()
562 TIME.tv_sec = time(NULL);
563 TIME.tv_nsec = st.wMilliseconds;
565 #ifdef HAS_CLOCK_GETTIME
566 clock_gettime(CLOCK_REALTIME, &TIME);
569 gettimeofday(&tv, NULL);
570 TIME.tv_sec = tv.tv_sec;
571 TIME.tv_nsec = tv.tv_usec * 1000;
579 time_t OLDTIME = TIME.tv_sec;
587 /* Check if there is a config thread which has finished executing but has not yet been freed */
588 if (this->ConfigThread && this->ConfigThread->IsDone())
590 /* Rehash has completed */
591 this->Logs->Log("CONFIG", LOG_DEBUG, "Detected ConfigThread exiting, tidying up...");
593 this->ConfigThread->Finish();
595 ConfigThread->join();
602 /* Run background module timers every few seconds
603 * (the docs say modules shouldnt rely on accurate
604 * timing using this event, so we dont have to
605 * time this exactly).
607 if (TIME.tv_sec != OLDTIME)
610 getrusage(RUSAGE_SELF, &ru);
611 stats.LastSampled = TIME;
612 stats.LastCPU = ru.ru_utime;
614 if(QueryPerformanceCounter(&stats.LastSampled))
616 FILETIME CreationTime;
620 GetProcessTimes(GetCurrentProcess(), &CreationTime, &ExitTime, &KernelTime, &UserTime);
621 stats.LastCPU.dwHighDateTime = KernelTime.dwHighDateTime + UserTime.dwHighDateTime;
622 stats.LastCPU.dwLowDateTime = KernelTime.dwLowDateTime + UserTime.dwLowDateTime;
626 if (Config->TimeSkipWarn)
628 time_t timediff = TIME.tv_sec - OLDTIME;
630 if (timediff > Config->TimeSkipWarn)
631 SNO->WriteToSnoMask('a', "\002Performance warning!\002 Server clock jumped forwards by %lu seconds!", timediff);
633 else if (timediff < -Config->TimeSkipWarn)
634 SNO->WriteToSnoMask('a', "\002Performance warning!\002 Server clock jumped backwards by %lu seconds!", labs(timediff));
637 OLDTIME = TIME.tv_sec;
639 if ((TIME.tv_sec % 3600) == 0)
641 FOREACH_MOD(OnGarbageCollect, ());
643 // HACK: ELines are not expired properly at the moment but it can't be fixed as
644 // the 2.0 XLine system is a spaghetti nightmare. Instead we skip over expired
645 // ELines in XLineManager::CheckELines() and expire them here instead.
649 Timers.TickTimers(TIME.tv_sec);
650 Users->DoBackgroundUserStuff();
652 if ((TIME.tv_sec % 5) == 0)
654 FOREACH_MOD(OnBackgroundTimer, (TIME.tv_sec));
655 SNO->FlushSnotices();
659 /* Call the socket engine to wait on the active
660 * file descriptors. The socket engine has everything's
661 * descriptors in its list... dns, modules, users,
662 * servers... so its nice and easy, just one call.
663 * This will cause any read or write events to be
664 * dispatched to their handlers.
666 SocketEngine::DispatchTrialWrites();
667 SocketEngine::DispatchEvents();
669 /* if any users were quit, take them out */
675 this->SignalHandler(s_signal);
681 sig_atomic_t InspIRCd::s_signal = 0;
683 void InspIRCd::SetSignal(int signal)
688 /* On posix systems, the flow of the program starts right here, with
689 * ENTRYPOINT being a #define that defines main(). On Windows, ENTRYPOINT
690 * defines smain() and the real main() is in the service code under
691 * win32service.cpp. This allows the service control manager to control
692 * the process where we are running as a windows service.
696 new InspIRCd(argc, argv);
697 ServerInstance->Run();
698 delete ServerInstance;