X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Finspircd.cpp;h=56b8178d235b733bb6c289b434d6b253c2a4a9a9;hb=e2b0f3dc9ef4d56c71d7abda13e6139ca092e387;hp=656be220f6c60d37469dd88f793a5b00bcc7daa2;hpb=79d6ec656d5159551c415c7eff861829801db461;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/inspircd.cpp b/src/inspircd.cpp index 656be220f..56b8178d2 100644 --- a/src/inspircd.cpp +++ b/src/inspircd.cpp @@ -1,16 +1,21 @@ /* * InspIRCd -- Internet Relay Chat Daemon * - * Copyright (C) 2012 William Pitcock + * Copyright (C) 2020 Matt Schatz + * Copyright (C) 2018 Chris Novakovic + * Copyright (C) 2013, 2017-2021 Sadie Powell + * Copyright (C) 2013 Adam + * Copyright (C) 2012-2014, 2016, 2018 Attila Molnar + * Copyright (C) 2012-2013 ChrisTX + * Copyright (C) 2012 Robby + * Copyright (C) 2012 Ariadne Conill * Copyright (C) 2009-2010 Daniel De Graaf - * Copyright (C) 2003-2008 Craig Edwards - * Copyright (C) 2008 Uli Schlachter - * Copyright (C) 2006-2008 Robin Burchell - * Copyright (C) 2006-2007 Oliver Lupton + * Copyright (C) 2008-2009 Uli Schlachter + * Copyright (C) 2008 Thomas Stagner + * Copyright (C) 2007-2008 Robin Burchell * Copyright (C) 2007 Dennis Friis - * Copyright (C) 2007 Burlex - * Copyright (C) 2003 Craig McLure - * Copyright (C) 2003 randomdan + * Copyright (C) 2006-2007 Oliver Lupton + * Copyright (C) 2005-2010 Craig Edwards * * This file is part of InspIRCd. InspIRCd is free software: you can * redistribute it and/or modify it under the terms of the GNU General Public @@ -26,45 +31,31 @@ */ -/* $Core */ #include "inspircd.h" -#include "inspircd_version.h" #include #ifndef _WIN32 - #include #include #include - #include #include - - /* Some systems don't define RUSAGE_SELF. This should fix them. */ - #ifndef RUSAGE_SELF - #define RUSAGE_SELF 0 - #endif - #include // setuid #include // setgid #else - WORD g_wOriginalColors; - WORD g_wBackgroundColor; - HANDLE g_hStdout; + /** Manages formatting lines written to stderr on Windows. */ + WindowsStream StandardError(STD_ERROR_HANDLE); + + /** Manages formatting lines written to stdout on Windows. */ + WindowsStream StandardOutput(STD_OUTPUT_HANDLE); #endif #include #include #include "xline.h" -#include "bancache.h" -#include "socketengine.h" -#include "socket.h" -#include "command_parse.h" #include "exitcodes.h" -#include "caller.h" -#include "testsuite.h" InspIRCd* ServerInstance = NULL; -/** Seperate from the other casemap tables so that code *can* still exclusively rely on RFC casemapping +/** Separate from the other casemap tables so that code *can* still exclusively rely on RFC casemapping * if it must. * * This is provided as a pointer so that modules can change it to their custom mapping tables, @@ -78,228 +69,385 @@ unsigned const char *national_case_insensitive_map = rfc_case_insensitive_map; */ const char* ExitCodes[] = { - "No error", /* 0 */ - "DIE command", /* 1 */ - "execv() failed", /* 2 */ - "Internal error", /* 3 */ - "Config file error", /* 4 */ - "Logfile error", /* 5 */ - "POSIX fork failed", /* 6 */ - "Bad commandline parameters", /* 7 */ - "No ports could be bound", /* 8 */ - "Can't write PID file", /* 9 */ - "SocketEngine could not initialize", /* 10 */ - "Refusing to start up as root", /* 11 */ - "Found a tag!", /* 12 */ - "Couldn't load module on startup", /* 13 */ - "Could not create windows forked process", /* 14 */ - "Received SIGTERM", /* 15 */ - "Bad command handler loaded", /* 16 */ - "RegisterServiceCtrlHandler failed", /* 17 */ - "UpdateSCMStatus failed", /* 18 */ - "CreateEvent failed" /* 19 */ + "No error", // 0 + "DIE command", // 1 + "Config file error", // 2 + "Logfile error", // 3 + "POSIX fork failed", // 4 + "Bad commandline parameters", // 5 + "Can't write PID file", // 6 + "SocketEngine could not initialize", // 7 + "Refusing to start up as root", // 8 + "Couldn't load module on startup", // 9 + "Received SIGTERM" // 10 }; -template static void DeleteZero(T*&n) +namespace { - T* t = n; - n = NULL; - delete t; -} + void VoidSignalHandler(int); -void InspIRCd::Cleanup() -{ - for (unsigned int i = 0; i < ports.size(); i++) + // Warns a user running as root that they probably shouldn't. + void CheckRoot() { - /* This calls the constructor and closes the listening socket */ - ports[i]->cull(); - delete ports[i]; +#ifndef _WIN32 + if (getegid() != 0 && geteuid() != 0) + return; + + std::cout << con_red << "Warning!" << con_reset << " You have started as root. Running as root is generally not required" << std::endl + << "and may allow an attacker to gain access to your system if they find a way to" << std::endl + << "exploit your IRC server." << std::endl + << std::endl; + if (isatty(fileno(stdout))) + { + std::cout << "InspIRCd will start in 30 seconds. If you are sure that you need to run as root" << std::endl + << "then you can pass the " << con_bright << "--runasroot" << con_reset << " option to disable this wait." << std::endl; + sleep(30); + } + else + { + std::cout << "If you are sure that you need to run as root then you can pass the " << con_bright << "--runasroot" << con_reset << std::endl + << "option to disable this error." << std::endl; + ServerInstance->Exit(EXIT_STATUS_ROOT); + } +#endif } - ports.clear(); - /* Close all client sockets, or the new process inherits them */ - LocalUserList::reverse_iterator i = Users->local_users.rbegin(); - while (i != this->Users->local_users.rend()) + // Collects performance statistics for the STATS command. + void CollectStats() { - User* u = *i++; - Users->QuitUser(u, "Server shutdown"); +#ifndef _WIN32 + static rusage ru; + if (getrusage(RUSAGE_SELF, &ru) == -1) + return; // Should never happen. + + ServerInstance->stats.LastSampled.tv_sec = ServerInstance->Time(); + ServerInstance->stats.LastSampled.tv_nsec = ServerInstance->Time_ns(); + ServerInstance->stats.LastCPU = ru.ru_utime; +#else + if (!QueryPerformanceCounter(&ServerInstance->stats.LastSampled)) + return; // Should never happen. + + FILETIME CreationTime; + FILETIME ExitTime; + FILETIME KernelTime; + FILETIME UserTime; + GetProcessTimes(GetCurrentProcess(), &CreationTime, &ExitTime, &KernelTime, &UserTime); + + ServerInstance->stats.LastCPU.dwHighDateTime = KernelTime.dwHighDateTime + UserTime.dwHighDateTime; + ServerInstance->stats.LastCPU.dwLowDateTime = KernelTime.dwLowDateTime + UserTime.dwLowDateTime; +#endif } - GlobalCulls.Apply(); - Modules->UnloadAll(); + // Checks whether the server clock has skipped too much and warn about it if it has. + void CheckTimeSkip(time_t oldtime, time_t newtime) + { + if (!ServerInstance->Config->TimeSkipWarn) + return; - /* Delete objects dynamically allocated in constructor (destructor would be more appropriate, but we're likely exiting) */ - /* Must be deleted before modes as it decrements modelines */ - if (FakeClient) - FakeClient->cull(); - if (Res) - Res->cull(); - DeleteZero(this->FakeClient); - DeleteZero(this->Users); - DeleteZero(this->Modes); - DeleteZero(this->XLines); - DeleteZero(this->Parser); - DeleteZero(this->stats); - DeleteZero(this->Modules); - DeleteZero(this->BanCache); - DeleteZero(this->SNO); - DeleteZero(this->Config); - DeleteZero(this->Res); - DeleteZero(this->chanlist); - DeleteZero(this->PI); - DeleteZero(this->Threads); - DeleteZero(this->Timers); - DeleteZero(this->SE); - /* Close logging */ - this->Logs->CloseLogs(); - DeleteZero(this->Logs); -} + time_t timediff = newtime - oldtime; -void InspIRCd::Restart(const std::string &reason) -{ - /* SendError flushes each client's queue, - * regardless of writeability state - */ - this->SendError(reason); + if (timediff > ServerInstance->Config->TimeSkipWarn) + ServerInstance->SNO->WriteToSnoMask('a', "\002Performance warning!\002 Server clock jumped forwards by %lu seconds!", timediff); - /* Figure out our filename (if theyve renamed it, we're boned) */ - std::string me; + else if (timediff < -ServerInstance->Config->TimeSkipWarn) + ServerInstance->SNO->WriteToSnoMask('a', "\002Performance warning!\002 Server clock jumped backwards by %lu seconds!", labs(timediff)); + } - char** argv = Config->cmdline.argv; + // Drops to the unprivileged user/group specified in . + void DropRoot() + { +#ifndef _WIN32 + ConfigTag* security = ServerInstance->Config->ConfValue("security"); + + const std::string SetGroup = security->getString("runasgroup"); + if (!SetGroup.empty()) + { + errno = 0; + if (setgroups(0, NULL) == -1) + { + ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "setgroups() failed (wtf?): %s", strerror(errno)); + exit(EXIT_STATUS_CONFIG); + } + + struct group* g = getgrnam(SetGroup.c_str()); + if (!g) + { + ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "getgrnam(%s) failed (wrong group?): %s", SetGroup.c_str(), strerror(errno)); + exit(EXIT_STATUS_CONFIG); + } + + if (setgid(g->gr_gid) == -1) + { + ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "setgid(%d) failed (wrong group?): %s", g->gr_gid, strerror(errno)); + exit(EXIT_STATUS_CONFIG); + } + } + + const std::string SetUser = security->getString("runasuser"); + if (!SetUser.empty()) + { + errno = 0; + struct passwd* u = getpwnam(SetUser.c_str()); + if (!u) + { + ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "getpwnam(%s) failed (wrong user?): %s", SetUser.c_str(), strerror(errno)); + exit(EXIT_STATUS_CONFIG); + } + if (setuid(u->pw_uid) == -1) + { + ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "setuid(%d) failed (wrong user?): %s", u->pw_uid, strerror(errno)); + exit(EXIT_STATUS_CONFIG); + } + } +#endif + } + + // Expands a path relative to the current working directory. + std::string ExpandPath(const char* path) + { #ifdef _WIN32 - char module[MAX_PATH]; - if (GetModuleFileNameA(NULL, module, MAX_PATH)) - me = module; + TCHAR configPath[MAX_PATH + 1]; + if (GetFullPathName(path, MAX_PATH, configPath, NULL) > 0) + return configPath; #else - me = argv[0]; + char configPath[PATH_MAX + 1]; + if (realpath(path, configPath)) + return configPath; #endif + return path; + } - this->Cleanup(); + // Locates a config file on the file system. + bool FindConfigFile(std::string& path) + { + if (FileSystem::FileExists(path)) + return true; - if (execv(me.c_str(), argv) == -1) +#ifdef _WIN32 + // Windows hides file extensions by default so try appending .txt to the path + // to help users who have that feature enabled and can't create .conf files. + const std::string txtpath = path + ".txt"; + if (FileSystem::FileExists(txtpath)) + { + path.assign(txtpath); + return true; + } +#endif + return false; + } + + // Attempts to fork into the background. + void ForkIntoBackground() { - /* Will raise a SIGABRT if not trapped */ - throw CoreException(std::string("Failed to execv()! error: ") + strerror(errno)); +#ifndef _WIN32 + // We use VoidSignalHandler whilst forking to avoid breaking daemon scripts + // if the parent process exits with SIGTERM (15) instead of EXIT_STATUS_NOERROR (0). + signal(SIGTERM, VoidSignalHandler); + + errno = 0; + int childpid = fork(); + if (childpid < 0) + { + ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "fork() failed: %s", strerror(errno)); + std::cout << con_red << "Error:" << con_reset << " unable to fork into background: " << strerror(errno); + ServerInstance->Exit(EXIT_STATUS_FORK); + } + else if (childpid > 0) + { + // Wait until the child process kills the parent so that the shell prompt + // doesnt display over the output. Sending a kill with a signal of 0 just + // checks that the child pid is still running. If it is not then an error + // happened and the parent should exit. + while (kill(childpid, 0) != -1) + sleep(1); + exit(EXIT_STATUS_NOERROR); + } + else + { + setsid(); + signal(SIGTERM, InspIRCd::SetSignal); + SocketEngine::RecoverFromFork(); + } +#endif } -} -void InspIRCd::ResetMaxBans() -{ - for (chan_hash::const_iterator i = chanlist->begin(); i != chanlist->end(); i++) - i->second->ResetMaxBans(); -} + // Increase the size of a core dump file to improve debugging problems. + void IncreaseCoreDumpSize() + { +#ifndef _WIN32 + errno = 0; + rlimit rl; + if (getrlimit(RLIMIT_CORE, &rl) == -1) + { + ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "Unable to increase core dump size: getrlimit(RLIMIT_CORE) failed: %s", strerror(errno)); + return; + } -/** Because hash_map doesn't free its buckets when we delete items, we occasionally - * recreate the hash to free them up. - * We do this by copying the entries from the old hash to a new hash, causing all - * empty buckets to be weeded out of the hash. - * Since this is quite expensive, it's not done very often. - */ -void InspIRCd::RehashUsersAndChans() -{ - user_hash* old_users = Users->clientlist; - Users->clientlist = new user_hash; - for (user_hash::const_iterator n = old_users->begin(); n != old_users->end(); n++) - Users->clientlist->insert(*n); - delete old_users; - - user_hash* old_uuid = Users->uuidlist; - Users->uuidlist = new user_hash; - for (user_hash::const_iterator n = old_uuid->begin(); n != old_uuid->end(); n++) - Users->uuidlist->insert(*n); - delete old_uuid; - - chan_hash* old_chans = chanlist; - chanlist = new chan_hash; - for (chan_hash::const_iterator n = old_chans->begin(); n != old_chans->end(); n++) - chanlist->insert(*n); - delete old_chans; - - // Reset the already_sent IDs so we don't wrap it around and drop a message - LocalUser::already_sent_id = 0; - for (LocalUserList::const_iterator i = Users->local_users.begin(); i != Users->local_users.end(); i++) + rl.rlim_cur = rl.rlim_max; + if (setrlimit(RLIMIT_CORE, &rl) == -1) + ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "Unable to increase core dump size: setrlimit(RLIMIT_CORE) failed: %s", strerror(errno)); +#endif + } + + // Parses the command line options. + void ParseOptions() { - (**i).already_sent = 0; - (**i).RemoveExpiredInvites(); + int do_debug = 0, do_nofork = 0, do_nolog = 0; + int do_nopid = 0, do_runasroot = 0, do_version = 0; + struct option longopts[] = + { + { "config", required_argument, NULL, 'c' }, + { "debug", no_argument, &do_debug, 1 }, + { "nofork", no_argument, &do_nofork, 1 }, + { "nolog", no_argument, &do_nolog, 1 }, + { "nopid", no_argument, &do_nopid, 1 }, + { "runasroot", no_argument, &do_runasroot, 1 }, + { "version", no_argument, &do_version, 1 }, + { 0, 0, 0, 0 } + }; + + char** argv = ServerInstance->Config->cmdline.argv; + int ret; + while ((ret = getopt_long(ServerInstance->Config->cmdline.argc, argv, ":c:", longopts, NULL)) != -1) + { + switch (ret) + { + case 0: + // A long option was specified. + break; + + case 'c': + // The -c option was specified. + ServerInstance->ConfigFileName = ExpandPath(optarg); + break; + + default: + // An unknown option was specified. + std::cout << con_red << "Error:" << con_reset << " unknown option '" << argv[optind] << "'." << std::endl + << con_bright << "Usage: " << con_reset << argv[0] << " [--config ] [--debug] [--nofork] [--nolog]" << std::endl + << std::string(strlen(argv[0]) + 8, ' ') << "[--nopid] [--runasroot] [--version]" << std::endl; + ServerInstance->Exit(EXIT_STATUS_ARGV); + break; + } + } + + if (do_version) + { + std::cout << INSPIRCD_VERSION << std::endl; + ServerInstance->Exit(EXIT_STATUS_NOERROR); + } + + // Store the relevant parsed arguments + ServerInstance->Config->cmdline.forcedebug = !!do_debug; + ServerInstance->Config->cmdline.nofork = !!do_nofork; + ServerInstance->Config->cmdline.runasroot = !!do_runasroot; + ServerInstance->Config->cmdline.writelog = !do_nolog; + ServerInstance->Config->cmdline.writepid = !do_nopid; + } + // Seeds the random number generator if applicable. + void SeedRng(timespec ts) + { +#if defined _WIN32 + srand(ts.tv_nsec ^ ts.tv_sec); +#elif !defined HAS_ARC4RANDOM_BUF + srandom(ts.tv_nsec ^ ts.tv_sec); +#endif } -} -void InspIRCd::SetSignals() -{ + // Sets handlers for various process signals. + void SetSignals() + { #ifndef _WIN32 - signal(SIGALRM, SIG_IGN); - signal(SIGHUP, InspIRCd::SetSignal); - signal(SIGPIPE, SIG_IGN); - signal(SIGCHLD, SIG_IGN); - /* We want E2BIG not a signal! */ - signal(SIGXFSZ, SIG_IGN); + signal(SIGALRM, SIG_IGN); + signal(SIGCHLD, SIG_IGN); + signal(SIGHUP, InspIRCd::SetSignal); + signal(SIGPIPE, SIG_IGN); + signal(SIGUSR1, SIG_IGN); + signal(SIGUSR2, SIG_IGN); + signal(SIGXFSZ, SIG_IGN); #endif - signal(SIGTERM, InspIRCd::SetSignal); -} + signal(SIGTERM, InspIRCd::SetSignal); + } -void InspIRCd::QuickExit(int status) -{ - exit(status); -} + void TryBindPorts() + { + FailedPortList pl; + ServerInstance->BindPorts(pl); -// Required for returning the proper value of EXIT_SUCCESS for the parent process -static void VoidSignalHandler(int signalreceived) -{ - exit(0); -} + if (!pl.empty()) + { + std::cout << con_red << "Warning!" << con_reset << " Some of your listener" << (pl.size() == 1 ? "s" : "") << " failed to bind:" << std::endl + << std::endl; -bool InspIRCd::DaemonSeed() -{ -#ifdef _WIN32 - std::cout << "InspIRCd Process ID: " << con_green << GetCurrentProcessId() << con_reset << std::endl; - return true; -#else - // Do not use QuickExit here: It will exit with status SIGTERM which would break e.g. daemon scripts - signal(SIGTERM, VoidSignalHandler); + for (FailedPortList::const_iterator iter = pl.begin(); iter != pl.end(); ++iter) + { + const FailedPort& fp = *iter; + std::cout << " " << con_bright << fp.sa.str() << con_reset << ": " << strerror(fp.error) << '.' << std::endl + << " " << "Created from tag at " << fp.tag->getTagLocation() << std::endl + << std::endl; + } - int childpid; - if ((childpid = fork ()) < 0) - return false; - else if (childpid > 0) - { - /* We wait here for the child process to kill us, - * so that the shell prompt doesnt come back over - * the output. - * Sending a kill with a signal of 0 just checks - * if the child pid is still around. If theyre not, - * they threw an error and we should give up. - */ - while (kill(childpid, 0) != -1) - sleep(1); - exit(0); + std::cout << con_bright << "Hints:" << con_reset << std::endl + << "- For TCP/IP listeners try using a public IP address in instead" << std::endl + << " of * or leaving it blank." << std::endl + << "- For UNIX socket listeners try enabling to replace old sockets." << std::endl; + } } - setsid (); - std::cout << "InspIRCd Process ID: " << con_green << getpid() << con_reset << std::endl; - signal(SIGTERM, InspIRCd::SetSignal); + // Required for returning the proper value of EXIT_SUCCESS for the parent process. + void VoidSignalHandler(int) + { + exit(EXIT_STATUS_NOERROR); + } +} - rlimit rl; - if (getrlimit(RLIMIT_CORE, &rl) == -1) +void InspIRCd::Cleanup() +{ + // Close all listening sockets + for (unsigned int i = 0; i < ports.size(); i++) { - this->Logs->Log("STARTUP",DEFAULT,"Failed to getrlimit()!"); - return false; + ports[i]->cull(); + delete ports[i]; } - rl.rlim_cur = rl.rlim_max; + ports.clear(); - if (setrlimit(RLIMIT_CORE, &rl) == -1) - this->Logs->Log("STARTUP",DEFAULT,"setrlimit() failed, cannot increase coredump size."); + // Tell modules that we're shutting down. + const std::string quitmsg = "Server shutting down"; + FOREACH_MOD(OnShutdown, (quitmsg)); - return true; -#endif + // Disconnect all local users + const UserManager::LocalList& list = Users.GetLocalUsers(); + while (!list.empty()) + ServerInstance->Users.QuitUser(list.front(), quitmsg); + + GlobalCulls.Apply(); + Modules->UnloadAll(); + + /* Delete objects dynamically allocated in constructor (destructor would be more appropriate, but we're likely exiting) */ + /* Must be deleted before modes as it decrements modelines */ + if (FakeClient) + { + delete FakeClient->server; + FakeClient->cull(); + } + stdalgo::delete_zero(this->FakeClient); + stdalgo::delete_zero(this->XLines); + stdalgo::delete_zero(this->Config); + SocketEngine::Deinit(); + Logs->CloseLogs(); } -void InspIRCd::WritePID(const std::string &filename) +void InspIRCd::WritePID(const std::string& filename, bool exitonfail) { #ifndef _WIN32 - std::string fname(filename); - if (fname.empty()) - fname = DATA_PATH "/inspircd.pid"; + if (!ServerInstance->Config->cmdline.writepid) + { + this->Logs->Log("STARTUP", LOG_DEFAULT, "--nopid specified on command line; PID file not written."); + return; + } + + std::string fname = ServerInstance->Config->Paths.PrependRuntime(filename.empty() ? "inspircd.pid" : filename); std::ofstream outfile(fname.c_str()); if (outfile.is_open()) { @@ -308,311 +456,111 @@ void InspIRCd::WritePID(const std::string &filename) } else { - std::cout << "Failed to write PID-file '" << fname << "', exiting." << std::endl; - this->Logs->Log("STARTUP",DEFAULT,"Failed to write PID-file '%s', exiting.",fname.c_str()); - Exit(EXIT_STATUS_PID); + if (exitonfail) + std::cout << "Failed to write PID-file '" << fname << "', exiting." << std::endl; + this->Logs->Log("STARTUP", LOG_DEFAULT, "Failed to write PID-file '%s'%s", fname.c_str(), (exitonfail ? ", exiting." : "")); + if (exitonfail) + Exit(EXIT_STATUS_PID); } #endif } -InspIRCd::InspIRCd(int argc, char** argv) : - ConfigFileName(CONFIG_PATH "/inspircd.conf"), - - /* Functor pointer initialisation. - * - * THIS MUST MATCH THE ORDER OF DECLARATION OF THE FUNCTORS, e.g. the methods - * themselves within the class. - */ - NICKForced("NICKForced", NULL), - OperQuit("OperQuit", NULL), - GenRandom(&HandleGenRandom), - IsChannel(&HandleIsChannel), - IsSID(&HandleIsSID), - Rehash(&HandleRehash), - IsNick(&HandleIsNick), - IsIdent(&HandleIsIdent), - FloodQuitUser(&HandleFloodQuitUser), - OnCheckExemption(&HandleOnCheckExemption) +InspIRCd::InspIRCd(int argc, char** argv) + : FakeClient(NULL) + , ConfigFileName(INSPIRCD_CONFIG_PATH "/inspircd.conf") + , ConfigThread(NULL) + , Config(NULL) + , XLines(NULL) + , PI(&DefaultProtocolInterface) + , GenRandom(&DefaultGenRandom) + , IsChannel(&DefaultIsChannel) + , IsNick(&DefaultIsNick) + , IsIdent(&DefaultIsIdent) { ServerInstance = this; - Extensions.Register(&NICKForced); - Extensions.Register(&OperQuit); - - FailedPortList pl; - int do_version = 0, do_nofork = 0, do_debug = 0, - do_nolog = 0, do_root = 0, do_testsuite = 0; /* flag variables */ - int c = 0; - - // Initialize so that if we exit before proper initialization they're not deleted - this->Logs = 0; - this->Threads = 0; - this->PI = 0; - this->Users = 0; - this->chanlist = 0; - this->Config = 0; - this->SNO = 0; - this->BanCache = 0; - this->Modules = 0; - this->stats = 0; - this->Timers = 0; - this->Parser = 0; - this->XLines = 0; - this->Modes = 0; - this->Res = 0; - this->ConfigThread = NULL; - this->FakeClient = NULL; - UpdateTime(); this->startup_time = TIME.tv_sec; - // This must be created first, so other parts of Insp can use it while starting up - this->Logs = new LogManager; - - SE = CreateSocketEngine(); - - this->Threads = new ThreadEngine; - - /* Default implementation does nothing */ - this->PI = new ProtocolInterface; - - this->s_signal = 0; - - // Create base manager classes early, so nothing breaks - this->Users = new UserManager; - - this->Users->clientlist = new user_hash(); - this->Users->uuidlist = new user_hash(); - this->chanlist = new chan_hash(); + IncreaseCoreDumpSize(); + SeedRng(TIME); + SocketEngine::Init(); this->Config = new ServerConfig; - this->SNO = new SnomaskManager; - this->BanCache = new BanCacheManager; - this->Modules = new ModuleManager(); - this->stats = new serverstats(); - this->Timers = new TimerManager; - this->Parser = new CommandParser; + dynamic_reference_base::reset_all(); this->XLines = new XLineManager; this->Config->cmdline.argv = argv; this->Config->cmdline.argc = argc; + ParseOptions(); -#ifdef _WIN32 - srand(TIME.tv_nsec ^ TIME.tv_sec); - - // Initialize the console values - g_hStdout = GetStdHandle(STD_OUTPUT_HANDLE); - CONSOLE_SCREEN_BUFFER_INFO bufinf; - if(GetConsoleScreenBufferInfo(g_hStdout, &bufinf)) { - g_wOriginalColors = bufinf.wAttributes & 0x00FF; - g_wBackgroundColor = bufinf.wAttributes & 0x00F0; - } - else - { - g_wOriginalColors = FOREGROUND_RED|FOREGROUND_BLUE|FOREGROUND_GREEN; - g_wBackgroundColor = 0; - } -#else - srandom(TIME.tv_nsec ^ TIME.tv_sec); -#endif - - struct option longopts[] = - { - { "nofork", no_argument, &do_nofork, 1 }, - { "logfile", required_argument, NULL, 'f' }, - { "config", required_argument, NULL, 'c' }, - { "debug", no_argument, &do_debug, 1 }, - { "nolog", no_argument, &do_nolog, 1 }, - { "runasroot", no_argument, &do_root, 1 }, - { "version", no_argument, &do_version, 1 }, - { "testsuite", no_argument, &do_testsuite, 1 }, - { 0, 0, 0, 0 } - }; - - int index; - while ((c = getopt_long(argc, argv, ":c:f:", longopts, &index)) != -1) - { - switch (c) + ServiceProvider* provs[] = { - case 'f': - /* Log filename was set */ - Config->cmdline.startup_log = optarg; - break; - case 'c': - /* Config filename was set */ - ConfigFileName = optarg; - break; - case 0: - /* getopt_long_only() set an int variable, just keep going */ - break; - case '?': - /* Unknown parameter */ - default: - /* Fall through to handle other weird values too */ - std::cout << "Unknown parameter '" << argv[optind-1] << "'" << std::endl; - std::cout << "Usage: " << argv[0] << " [--nofork] [--nolog] [--debug] [--logfile ] " << std::endl << - std::string(static_cast(8+strlen(argv[0])), ' ') << "[--runasroot] [--version] [--config ] [--testsuite]" << std::endl; - Exit(EXIT_STATUS_ARGV); - break; - } - } - - if (do_testsuite) - do_nofork = do_debug = true; - - if (do_version) - { - std::cout << std::endl << VERSION << " r" << REVISION << std::endl; - Exit(EXIT_STATUS_NOERROR); + &rfcevents.numeric, &rfcevents.join, &rfcevents.part, &rfcevents.kick, &rfcevents.quit, &rfcevents.nick, + &rfcevents.mode, &rfcevents.topic, &rfcevents.privmsg, &rfcevents.invite, &rfcevents.ping, &rfcevents.pong, + &rfcevents.error + }; + Modules.AddServices(provs, sizeof(provs)/sizeof(provs[0])); } -#ifdef _WIN32 - // Set up winsock - WSADATA wsadata; - WSAStartup(MAKEWORD(2,2), &wsadata); -#endif - - /* Set the finished argument values */ - Config->cmdline.nofork = (do_nofork != 0); - Config->cmdline.forcedebug = (do_debug != 0); - Config->cmdline.writelog = !do_nolog; - Config->cmdline.TestSuite = (do_testsuite != 0); + std::cout << con_green << "InspIRCd - Internet Relay Chat Daemon" << con_reset << std::endl + << "See " << con_green << "/INFO" << con_reset << " for contributors & authors" << std::endl + << std::endl; - if (do_debug) + if (Config->cmdline.forcedebug) { - FileWriter* fw = new FileWriter(stdout); - FileLogStream* fls = new FileLogStream(RAWIO, fw); + FILE* newstdout = fdopen(dup(STDOUT_FILENO), "w"); + FileWriter* fw = new FileWriter(newstdout, 1); + FileLogStream* fls = new FileLogStream(LOG_RAWIO, fw); Logs->AddLogTypes("*", fls, true); } - else if (!this->OpenLog(argv, argc)) - { - std::cout << "ERROR: Could not open initial logfile " << Config->cmdline.startup_log << ": " << strerror(errno) << std::endl << std::endl; - Exit(EXIT_STATUS_LOG); - } - - if (!ServerConfig::FileExists(ConfigFileName.c_str())) - { -#ifdef _WIN32 - /* Windows can (and defaults to) hide file extensions, so let's play a bit nice for windows users. */ - std::string txtconf = this->ConfigFileName; - txtconf.append(".txt"); - - if (ServerConfig::FileExists(txtconf.c_str())) - { - ConfigFileName = txtconf; - } - else -#endif - { - std::cout << "ERROR: Cannot open config file: " << ConfigFileName << std::endl << "Exiting..." << std::endl; - this->Logs->Log("STARTUP",DEFAULT,"Unable to open config file %s", ConfigFileName.c_str()); - Exit(EXIT_STATUS_CONFIG); - } - } - - std::cout << con_green << "Inspire Internet Relay Chat Server" << con_reset << ", compiled on " __DATE__ " at " __TIME__ << std::endl; - std::cout << con_green << "(C) InspIRCd Development Team." << con_reset << std::endl << std::endl; - std::cout << "Developers:" << std::endl; - std::cout << con_green << "\tBrain, FrostyCoolSlug, w00t, Om, Special, peavey" << std::endl; - std::cout << "\taquanight, psychon, dz, danieldg, jackmcbarn" << std::endl; - std::cout << "\tAttila" << con_reset << std::endl << std::endl; - std::cout << "Others:\t\t\t" << con_green << "See /INFO Output" << con_reset << std::endl; - - this->Modes = new ModeParser; -#ifndef _WIN32 - if (!do_root) - this->CheckRoot(); - else + if (!FindConfigFile(ConfigFileName)) { - std::cout << "* WARNING * WARNING * WARNING * WARNING * WARNING *" << std::endl - << "YOU ARE RUNNING INSPIRCD AS ROOT. THIS IS UNSUPPORTED" << std::endl - << "AND IF YOU ARE HACKED, CRACKED, SPINDLED OR MUTILATED" << std::endl - << "OR ANYTHING ELSE UNEXPECTED HAPPENS TO YOU OR YOUR" << std::endl - << "SERVER, THEN IT IS YOUR OWN FAULT. IF YOU DID NOT MEAN" << std::endl - << "TO START INSPIRCD AS ROOT, HIT CTRL+C NOW AND RESTART" << std::endl - << "THE PROGRAM AS A NORMAL USER. YOU HAVE BEEN WARNED!" << std::endl << std::endl - << "InspIRCd starting in 20 seconds, ctrl+c to abort..." << std::endl; - sleep(20); + this->Logs->Log("STARTUP", LOG_DEFAULT, "Unable to open config file %s", ConfigFileName.c_str()); + std::cout << "ERROR: Cannot open config file: " << ConfigFileName << std::endl << "Exiting..." << std::endl; + Exit(EXIT_STATUS_CONFIG); } -#endif - - this->SetSignals(); + SetSignals(); + if (!Config->cmdline.runasroot) + CheckRoot(); if (!Config->cmdline.nofork) - { - if (!this->DaemonSeed()) - { - std::cout << "ERROR: could not go into daemon mode. Shutting down." << std::endl; - Logs->Log("STARTUP", DEFAULT, "ERROR: could not go into daemon mode. Shutting down."); - Exit(EXIT_STATUS_FORK); - } - } + ForkIntoBackground(); - SE->RecoverFromFork(); + std::cout << "InspIRCd Process ID: " << con_green << getpid() << con_reset << std::endl; - /* During startup we don't actually initialize this - * in the thread engine. + /* During startup we read the configuration now, not in + * a separate thread */ this->Config->Read(); this->Config->Apply(NULL, ""); Logs->OpenFileLogs(); - this->Res = new DNS(); - - /* - * Initialise SID/UID. - * For an explanation as to exactly how this works, and why it works this way, see GetUID(). - * -- w00t - */ + // If we don't have a SID, generate one based on the server name and the server description if (Config->sid.empty()) - { - // Generate one - unsigned int sid = 0; - char sidstr[4]; - - for (const char* x = Config->ServerName.c_str(); *x; ++x) - sid = 5 * sid + *x; - for (const char* y = Config->ServerDesc.c_str(); *y; ++y) - sid = 5 * sid + *y; - sprintf(sidstr, "%03d", sid % 1000); + Config->sid = UIDGenerator::GenerateSID(Config->ServerName, Config->ServerDesc); - Config->sid = sidstr; - } + // Initialize the UID generator with our sid + this->UIDGen.init(Config->sid); - /* set up fake client again this time with the correct uid */ - this->FakeClient = new FakeUser(Config->sid, Config->ServerName); + // Create the server user for this server + this->FakeClient = new FakeUser(Config->sid, Config->ServerName, Config->ServerDesc); - // Get XLine to do it's thing. - this->XLines->CheckELines(); + // This is needed as all new XLines are marked pending until ApplyLines() is called this->XLines->ApplyLines(); - int bounditems = BindPorts(pl); - std::cout << std::endl; - this->Modules->LoadAll(); - - /* Just in case no modules were loaded - fix for bug #101 */ - this->BuildISupport(); - Config->ApplyDisabledCommands(Config->DisabledCommands); + TryBindPorts(); - if (!pl.empty()) - { - std::cout << std::endl << "WARNING: Not all your client ports could be bound -- " << std::endl << "starting anyway with " << bounditems - << " of " << bounditems + (int)pl.size() << " client ports bound." << std::endl << std::endl; - std::cout << "The following port(s) failed to bind:" << std::endl << std::endl; - int j = 1; - for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++) - { - std::cout << j << ".\tAddress: " << (i->first.empty() ? "" : i->first) << " \tReason: " << i->second << std::endl; - } + this->Modules->LoadAll(); - std::cout << std::endl << "Hint: Try using a public IP instead of blank or *" << std::endl; - } + // Build ISupport as ModuleManager::LoadAll() does not do it + this->ISupport.Build(); - std::cout << "InspIRCd is now running as '" << Config->ServerName << "'[" << Config->GetSID() << "] with " << SE->GetMaxFds() << " max open sockets" << std::endl; + std::cout << "InspIRCd is now running as '" << Config->ServerName << "'[" << Config->GetSID() << "] with " << SocketEngine::GetMaxFds() << " max open sockets" << std::endl; #ifndef _WIN32 if (!Config->cmdline.nofork) @@ -620,7 +568,7 @@ InspIRCd::InspIRCd(int argc, char** argv) : if (kill(getppid(), SIGTERM) == -1) { std::cout << "Error killing parent process: " << strerror(errno) << std::endl; - Logs->Log("STARTUP", DEFAULT, "Error killing parent process: %s",strerror(errno)); + Logs->Log("STARTUP", LOG_DEFAULT, "Error killing parent process: %s",strerror(errno)); } } @@ -634,7 +582,7 @@ InspIRCd::InspIRCd(int argc, char** argv) : * * -- nenolod */ - if ((!do_nofork) && (!do_testsuite) && (!Config->cmdline.forcedebug)) + if ((!Config->cmdline.nofork) && (!Config->cmdline.forcedebug)) { int fd = open("/dev/null", O_RDWR); @@ -643,140 +591,67 @@ InspIRCd::InspIRCd(int argc, char** argv) : fclose(stdout); if (dup2(fd, STDIN_FILENO) < 0) - Logs->Log("STARTUP", DEFAULT, "Failed to dup /dev/null to stdin."); + Logs->Log("STARTUP", LOG_DEFAULT, "Failed to dup /dev/null to stdin."); if (dup2(fd, STDOUT_FILENO) < 0) - Logs->Log("STARTUP", DEFAULT, "Failed to dup /dev/null to stdout."); + Logs->Log("STARTUP", LOG_DEFAULT, "Failed to dup /dev/null to stdout."); if (dup2(fd, STDERR_FILENO) < 0) - Logs->Log("STARTUP", DEFAULT, "Failed to dup /dev/null to stderr."); + Logs->Log("STARTUP", LOG_DEFAULT, "Failed to dup /dev/null to stderr."); close(fd); } else { - Logs->Log("STARTUP", DEFAULT,"Keeping pseudo-tty open as we are running in the foreground."); + Logs->Log("STARTUP", LOG_DEFAULT, "Keeping pseudo-tty open as we are running in the foreground."); } #else /* Set win32 service as running, if we are running as a service */ SetServiceRunning(); // Handle forking - if(!do_nofork) + if(!Config->cmdline.nofork) { FreeConsole(); } - QueryPerformanceFrequency(&stats->QPFrequency); + QueryPerformanceFrequency(&stats.QPFrequency); #endif - Logs->Log("STARTUP", DEFAULT, "Startup complete as '%s'[%s], %d max open sockets", Config->ServerName.c_str(),Config->GetSID().c_str(), SE->GetMaxFds()); - -#ifndef _WIN32 - std::string SetUser = Config->ConfValue("security")->getString("runasuser"); - std::string SetGroup = Config->ConfValue("security")->getString("runasgroup"); - if (!SetGroup.empty()) - { - int ret; - - // setgroups - ret = setgroups(0, NULL); - - if (ret == -1) - { - this->Logs->Log("SETGROUPS", DEFAULT, "setgroups() failed (wtf?): %s", strerror(errno)); - this->QuickExit(0); - } - - // setgid - struct group *g; - - errno = 0; - g = getgrnam(SetGroup.c_str()); - - if (!g) - { - this->Logs->Log("SETGUID", DEFAULT, "getgrnam(%s) failed (wrong group?): %s", SetGroup.c_str(), strerror(errno)); - this->QuickExit(0); - } - - ret = setgid(g->gr_gid); - - if (ret == -1) - { - this->Logs->Log("SETGUID", DEFAULT, "setgid() failed (wrong group?): %s", strerror(errno)); - this->QuickExit(0); - } - } - - if (!SetUser.empty()) - { - // setuid - struct passwd *u; - - errno = 0; - u = getpwnam(SetUser.c_str()); - - if (!u) - { - this->Logs->Log("SETGUID", DEFAULT, "getpwnam(%s) failed (wrong user?): %s", SetUser.c_str(), strerror(errno)); - this->QuickExit(0); - } - - int ret = setuid(u->pw_uid); + WritePID(Config->PID); + DropRoot(); - if (ret == -1) - { - this->Logs->Log("SETGUID", DEFAULT, "setuid() failed (wrong user?): %s", strerror(errno)); - this->QuickExit(0); - } - } - - this->WritePID(Config->PID); -#endif + Logs->Log("STARTUP", LOG_DEFAULT, "Startup complete as '%s'[%s], %lu max open sockets", Config->ServerName.c_str(),Config->GetSID().c_str(), SocketEngine::GetMaxFds()); } void InspIRCd::UpdateTime() { -#ifdef _WIN32 +#if defined HAS_CLOCK_GETTIME + clock_gettime(CLOCK_REALTIME, &TIME); +#elif defined _WIN32 SYSTEMTIME st; GetSystemTime(&st); TIME.tv_sec = time(NULL); TIME.tv_nsec = st.wMilliseconds; #else - #ifdef HAS_CLOCK_GETTIME - clock_gettime(CLOCK_REALTIME, &TIME); - #else - struct timeval tv; - gettimeofday(&tv, NULL); - TIME.tv_sec = tv.tv_sec; - TIME.tv_nsec = tv.tv_usec * 1000; - #endif + struct timeval tv; + gettimeofday(&tv, NULL); + + TIME.tv_sec = tv.tv_sec; + TIME.tv_nsec = tv.tv_usec * 1000; #endif } -int InspIRCd::Run() +void InspIRCd::Run() { - /* See if we're supposed to be running the test suite rather than entering the mainloop */ - if (Config->cmdline.TestSuite) - { - TestSuite* ts = new TestSuite; - delete ts; - Exit(0); - } - UpdateTime(); time_t OLDTIME = TIME.tv_sec; while (true) { -#ifndef _WIN32 - static rusage ru; -#endif - /* Check if there is a config thread which has finished executing but has not yet been freed */ if (this->ConfigThread && this->ConfigThread->IsDone()) { /* Rehash has completed */ - this->Logs->Log("CONFIG",DEBUG,"Detected ConfigThread exiting, tidying up..."); + this->Logs->Log("CONFIG", LOG_DEBUG, "Detected ConfigThread exiting, tidying up..."); this->ConfigThread->Finish(); @@ -788,53 +663,26 @@ int InspIRCd::Run() UpdateTime(); /* Run background module timers every few seconds - * (the docs say modules shouldnt rely on accurate + * (the docs say modules should not rely on accurate * timing using this event, so we dont have to * time this exactly). */ if (TIME.tv_sec != OLDTIME) { -#ifndef _WIN32 - getrusage(RUSAGE_SELF, &ru); - stats->LastSampled = TIME; - stats->LastCPU = ru.ru_utime; -#else - if(QueryPerformanceCounter(&stats->LastSampled)) - { - FILETIME CreationTime; - FILETIME ExitTime; - FILETIME KernelTime; - FILETIME UserTime; - GetProcessTimes(GetCurrentProcess(), &CreationTime, &ExitTime, &KernelTime, &UserTime); - stats->LastCPU.dwHighDateTime = KernelTime.dwHighDateTime + UserTime.dwHighDateTime; - stats->LastCPU.dwLowDateTime = KernelTime.dwLowDateTime + UserTime.dwLowDateTime; - } -#endif + CollectStats(); + CheckTimeSkip(OLDTIME, TIME.tv_sec); - /* Allow a buffer of two seconds drift on this so that ntpdate etc dont harass admins */ - if (TIME.tv_sec < OLDTIME - 2) - { - SNO->WriteToSnoMask('d', "\002EH?!\002 -- Time is flowing BACKWARDS in this dimension! Clock drifted backwards %lu secs.", (unsigned long)(OLDTIME-TIME.tv_sec)); - } - else if (TIME.tv_sec > OLDTIME + 2) - { - SNO->WriteToSnoMask('d', "\002EH?!\002 -- Time is jumping FORWARDS! Clock skipped %lu secs.", (unsigned long)(TIME.tv_sec - OLDTIME)); - } - OLDTIME = TIME.tv_sec; if ((TIME.tv_sec % 3600) == 0) - { - this->RehashUsersAndChans(); - FOREACH_MOD(I_OnGarbageCollect, OnGarbageCollect()); - } + FOREACH_MOD(OnGarbageCollect, ()); - Timers->TickTimers(TIME.tv_sec); - this->DoBackgroundUserStuff(); + Timers.TickTimers(TIME.tv_sec); + Users->DoBackgroundUserStuff(); if ((TIME.tv_sec % 5) == 0) { - FOREACH_MOD(I_OnBackgroundTimer,OnBackgroundTimer(TIME.tv_sec)); + FOREACH_MOD(OnBackgroundTimer, (TIME.tv_sec)); SNO->FlushSnotices(); } } @@ -846,8 +694,8 @@ int InspIRCd::Run() * This will cause any read or write events to be * dispatched to their handlers. */ - this->SE->DispatchTrialWrites(); - this->SE->DispatchEvents(); + SocketEngine::DispatchTrialWrites(); + SocketEngine::DispatchEvents(); /* if any users were quit, take them out */ GlobalCulls.Apply(); @@ -859,25 +707,6 @@ int InspIRCd::Run() s_signal = 0; } } - - return 0; -} - -/**********************************************************************************/ - -/** - * An ircd in five lines! bwahahaha. ahahahahaha. ahahah *cough*. - */ - -/* this returns true when all modules are satisfied that the user should be allowed onto the irc server - * (until this returns true, a user will block in the waiting state, waiting to connect up to the - * registration timeout maximum seconds) - */ -bool InspIRCd::AllModulesReportReady(LocalUser* user) -{ - ModResult res; - FIRST_MOD_RESULT(OnCheckReady, res, (user)); - return (res == MOD_RES_PASSTHRU); } sig_atomic_t InspIRCd::s_signal = 0;