1 /* ---------------------------------------------------------------------
3 * +------------------------------------+
4 * | Inspire Internet Relay Chat Daemon |
5 * +------------------------------------+
7 * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
9 * <brain@chatspike.net>
10 * <Craig@chatspike.net>
12 * Written by Craig Edwards, Craig McLure, and others.
13 * This program is free but copyrighted software; you can redistribute
14 * it and/or modify it under the terms of the GNU General Public
15 * License as published by the Free Software Foundation, version 2
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 * ---------------------------------------------------------------------
31 #include "configreader.h"
39 #include "socketengine.h"
40 #include "inspircd_se_config.h"
43 #include "command_parse.h"
46 using irc::sockets::NonBlocking;
47 using irc::sockets::Blocking;
48 using irc::sockets::insp_ntoa;
49 using irc::sockets::insp_inaddr;
50 using irc::sockets::insp_sockaddr;
54 void InspIRCd::AddServerName(const std::string &servername)
56 this->Log(DEBUG,"Adding server name: %s",servername.c_str());
58 if(find(servernames.begin(), servernames.end(), servername) == servernames.end())
59 servernames.push_back(servername); /* Wasn't already there. */
62 const char* InspIRCd::FindServerNamePtr(const std::string &servername)
64 servernamelist::iterator iter = find(servernames.begin(), servernames.end(), servername);
66 if(iter == servernames.end())
68 AddServerName(servername);
69 iter = --servernames.end();
75 bool InspIRCd::FindServerName(const std::string &servername)
77 return (find(servernames.begin(), servernames.end(), servername) != servernames.end());
80 void InspIRCd::Exit(int status)
85 void InspIRCd::Start()
87 printf("\033[1;32mInspire Internet Relay Chat Server, compiled %s at %s\n",__DATE__,__TIME__);
88 printf("(C) ChatSpike Development team.\033[0m\n\n");
89 printf("Developers:\t\t\033[1;32mBrain, FrostyCoolSlug, w00t, Om, Special, pippijn, peavey\033[0m\n");
90 printf("Others:\t\t\t\033[1;32mSee /INFO Output\033[0m\n");
91 printf("Name concept:\t\t\033[1;32mLord_Zathras\033[0m\n\n");
94 void InspIRCd::Rehash(int status)
96 SI->WriteOpers("Rehashing config file %s due to SIGHUP",ServerConfig::CleanFilename(CONFIG_FILE));
97 fclose(SI->Config->log_file);
99 SI->Config->Read(false,NULL);
100 FOREACH_MOD_I(SI,I_OnRehash,OnRehash(""));
103 void InspIRCd::SetSignals()
105 signal(SIGALRM, SIG_IGN);
106 signal(SIGHUP, InspIRCd::Rehash);
107 signal(SIGPIPE, SIG_IGN);
108 signal(SIGTERM, InspIRCd::Exit);
109 signal(SIGCHLD, SIG_IGN);
112 bool InspIRCd::DaemonSeed()
115 if ((childpid = fork ()) < 0)
117 else if (childpid > 0)
119 /* We wait here for the child process to kill us,
120 * so that the shell prompt doesnt come back over
122 * Sending a kill with a signal of 0 just checks
123 * if the child pid is still around. If theyre not,
124 * they threw an error and we should give up.
126 while (kill(childpid, 0) != -1)
132 printf("InspIRCd Process ID: \033[1;32m%lu\033[0m\n",(unsigned long)getpid());
135 if (getrlimit(RLIMIT_CORE, &rl) == -1)
137 this->Log(DEFAULT,"Failed to getrlimit()!");
142 rl.rlim_cur = rl.rlim_max;
143 if (setrlimit(RLIMIT_CORE, &rl) == -1)
144 this->Log(DEFAULT,"setrlimit() failed, cannot increase coredump size.");
150 void InspIRCd::WritePID(const std::string &filename)
152 std::string fname = (filename.empty() ? "inspircd.pid" : filename);
153 if (*(fname.begin()) != '/')
155 std::string::size_type pos;
156 std::string confpath = CONFIG_FILE;
157 if ((pos = confpath.find("/inspircd.conf")) != std::string::npos)
159 /* Leaves us with just the path */
160 fname = confpath.substr(0, pos) + std::string("/") + fname;
163 std::ofstream outfile(fname.c_str());
164 if (outfile.is_open())
171 printf("Failed to write PID-file '%s', exiting.\n",fname.c_str());
172 this->Log(DEFAULT,"Failed to write PID-file '%s', exiting.",fname.c_str());
177 std::string InspIRCd::GetRevision()
182 InspIRCd::InspIRCd(int argc, char** argv)
183 : ModCount(-1), duration_m(60), duration_h(60*60), duration_d(60*60*24), duration_w(60*60*24*7), duration_y(60*60*24*365)
191 this->Config = new ServerConfig(this);
192 this->Config->opertypes.clear();
193 this->Config->operclass.clear();
194 this->SNO = new SnomaskManager(this);
196 this->TIME = this->OLDTIME = this->startup_time = time(NULL);
197 this->time_delta = 0;
198 this->next_call = this->TIME + 3;
200 this->Log(DEBUG,"*** InspIRCd starting up!");
201 if (!ServerConfig::FileExists(CONFIG_FILE))
203 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
204 this->Log(DEFAULT,"main: no config");
205 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
208 *this->LogFileName = 0;
210 for (int i = 1; i < argc; i++)
212 if (!strcmp(argv[i],"-nofork"))
214 Config->nofork = true;
216 else if(!strcmp(argv[i],"-debug"))
218 Config->forcedebug = true;
220 else if(!strcmp(argv[i],"-nolog"))
222 Config->writelog = false;
224 else if (!strcmp(argv[i],"-wait"))
228 else if (!strcmp(argv[i],"-logfile"))
232 strlcpy(LogFileName,argv[i+1],MAXBUF);
233 printf("LOG: Setting logfile to %s\n",LogFileName);
237 printf("ERROR: The -logfile parameter must be followed by a log file name and path.\n");
244 printf("Usage: %s [-nofork] [-nolog] [-debug] [-wait] [-logfile <filename>]\n",argv[0]);
250 strlcpy(Config->MyExecutable,argv[0],MAXBUF);
252 this->OpenLog(argv, argc);
253 this->stats = new serverstats();
254 this->Parser = new CommandParser(this);
255 this->Timers = new TimerManager();
256 this->XLines = new XLineManager(this);
257 Config->ClearStack();
258 Config->Read(true, NULL);
260 this->Modes = new ModeParser(this);
261 this->AddServerName(Config->ServerName);
263 InitializeDisabledCommands(Config->DisabledCommands, this);
264 stats->BoundPortCount = BindPorts(true, found_ports, pl);
266 for(int t = 0; t < 255; t++)
267 Config->global_implementation[t] = 0;
269 memset(&Config->implement_lists,0,sizeof(Config->implement_lists));
275 if (!this->DaemonSeed())
277 printf("ERROR: could not go into daemon mode. Shutting down.\n");
282 /* Because of limitations in kqueue on freebsd, we must fork BEFORE we
283 * initialize the socket engine.
285 SocketEngineFactory* SEF = new SocketEngineFactory();
286 SE = SEF->Create(this);
289 this->Res = new DNS(this);
291 this->LoadAllModules();
292 /* Just in case no modules were loaded - fix for bug #101 */
293 this->BuildISupport();
295 if ((stats->BoundPortCount == 0) && (found_ports > 0))
297 printf("\nERROR: I couldn't bind any ports! Are you sure you didn't start InspIRCd twice?\n");
301 if (stats->BoundPortCount != (unsigned int)found_ports)
303 printf("\nWARNING: Not all your client ports could be bound --\nstarting anyway with %ld of %d client ports bound.\n\n", stats->BoundPortCount, found_ports);
304 printf("The following port%s failed to bind:\n", found_ports - stats->BoundPortCount != 1 ? "s" : "");
306 for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
308 printf("%d.\tIP: %s\tPort: %lu\n", j, i->first.empty() ? "<all>" : i->first.c_str(), (unsigned long)i->second);
312 /* Add the listening sockets used for client inbound connections
313 * to the socket engine
315 this->Log(DEBUG,"%d listeners",stats->BoundPortCount);
316 for (unsigned long count = 0; count < stats->BoundPortCount; count++)
318 this->Log(DEBUG,"Add listener: %d",Config->openSockfd[count]->GetFd());
319 if (!SE->AddFd(Config->openSockfd[count]))
321 printf("\nEH? Could not add listener to socketengine. You screwed up, aborting.\n");
328 if (kill(getppid(), SIGTERM) == -1)
329 printf("Error killing parent process: %s\n",strerror(errno));
335 printf("\nInspIRCd is now running!\n");
337 this->WritePID(Config->PID);
340 std::string InspIRCd::GetVersionString()
342 char versiondata[MAXBUF];
343 char dnsengine[] = "singlethread-object";
344 if (*Config->CustomVersion)
346 snprintf(versiondata,MAXBUF,"%s %s :%s",VERSION,Config->ServerName,Config->CustomVersion);
350 snprintf(versiondata,MAXBUF,"%s %s :%s [FLAGS=%lu,%s,%s]",VERSION,Config->ServerName,SYSTEM,(unsigned long)OPTIMISATION,SE->GetName().c_str(),dnsengine);
355 char* InspIRCd::ModuleError()
360 void InspIRCd::EraseFactory(int j)
363 for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
369 factory.push_back(NULL);
376 void InspIRCd::EraseModule(int j)
379 for (ModuleList::iterator m = modules.begin(); m!= modules.end(); m++)
385 modules.push_back(NULL);
391 for (std::vector<std::string>::iterator v = Config->module_names.begin(); v != Config->module_names.end(); v++)
395 Config->module_names.erase(v);
403 void InspIRCd::MoveTo(std::string modulename,int slot)
405 unsigned int v2 = 256;
406 for (unsigned int v = 0; v < Config->module_names.size(); v++)
408 if (Config->module_names[v] == modulename)
410 // found an instance, swap it with the item at the end
415 if ((v2 != (unsigned int)slot) && (v2 < 256))
417 // Swap the module names over
418 Config->module_names[v2] = Config->module_names[slot];
419 Config->module_names[slot] = modulename;
420 // now swap the module factories
421 ircd_module* temp = factory[v2];
422 factory[v2] = factory[slot];
423 factory[slot] = temp;
424 // now swap the module objects
425 Module* temp_module = modules[v2];
426 modules[v2] = modules[slot];
427 modules[slot] = temp_module;
428 // now swap the implement lists (we dont
429 // need to swap the global or recount it)
430 for (int n = 0; n < 255; n++)
432 char x = Config->implement_lists[v2][n];
433 Config->implement_lists[v2][n] = Config->implement_lists[slot][n];
434 Config->implement_lists[slot][n] = x;
439 this->Log(DEBUG,"Move of %s to slot failed!",modulename.c_str());
443 void InspIRCd::MoveAfter(std::string modulename, std::string after)
445 for (unsigned int v = 0; v < Config->module_names.size(); v++)
447 if (Config->module_names[v] == after)
449 MoveTo(modulename, v);
455 void InspIRCd::MoveBefore(std::string modulename, std::string before)
457 for (unsigned int v = 0; v < Config->module_names.size(); v++)
459 if (Config->module_names[v] == before)
463 MoveTo(modulename, v-1);
467 MoveTo(modulename, v);
474 void InspIRCd::MoveToFirst(std::string modulename)
476 MoveTo(modulename,0);
479 void InspIRCd::MoveToLast(std::string modulename)
481 MoveTo(modulename,this->GetModuleCount());
484 void InspIRCd::BuildISupport()
486 // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
488 v << "WALLCHOPS WALLVOICES MODES=" << MAXMODES << " CHANTYPES=# PREFIX=" << this->Modes->BuildPrefixes() << " MAP MAXCHANNELS=" << MAXCHANS << " MAXBANS=60 VBANLIST NICKLEN=" << NICKMAX-1;
489 v << " CASEMAPPING=rfc1459 STATUSMSG=@%+ CHARSET=ascii TOPICLEN=" << MAXTOPIC << " KICKLEN=" << MAXKICK << " MAXTARGETS=" << Config->MaxTargets << " AWAYLEN=";
490 v << MAXAWAY << " CHANMODES=" << this->Modes->ChanModes() << " FNC NETWORK=" << Config->Network << " MAXPARA=32";
491 Config->data005 = v.str();
492 FOREACH_MOD_I(this,I_On005Numeric,On005Numeric(Config->data005));
495 bool InspIRCd::UnloadModule(const char* filename)
497 std::string filename_str = filename;
498 for (unsigned int j = 0; j != Config->module_names.size(); j++)
500 if (Config->module_names[j] == filename_str)
502 if (modules[j]->GetVersion().Flags & VF_STATIC)
504 this->Log(DEFAULT,"Failed to unload STATIC module %s",filename);
505 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
508 /* Give the module a chance to tidy out all its metadata */
509 for (chan_hash::iterator c = this->chanlist.begin(); c != this->chanlist.end(); c++)
511 modules[j]->OnCleanup(TYPE_CHANNEL,c->second);
513 for (user_hash::iterator u = this->clientlist.begin(); u != this->clientlist.end(); u++)
515 modules[j]->OnCleanup(TYPE_USER,u->second);
518 /* Tidy up any dangling resolvers */
519 this->Res->CleanResolvers(modules[j]);
521 FOREACH_MOD_I(this,I_OnUnloadModule,OnUnloadModule(modules[j],Config->module_names[j]));
523 for(int t = 0; t < 255; t++)
525 Config->global_implementation[t] -= Config->implement_lists[j][t];
528 /* We have to renumber implement_lists after unload because the module numbers change!
530 for(int j2 = j; j2 < 254; j2++)
532 for(int t = 0; t < 255; t++)
534 Config->implement_lists[j2][t] = Config->implement_lists[j2+1][t];
539 this->Log(DEBUG,"Removing dependent commands...");
540 Parser->RemoveCommands(filename);
541 this->Log(DEBUG,"Deleting module...");
542 this->EraseModule(j);
543 this->Log(DEBUG,"Erasing module entry...");
544 this->EraseFactory(j);
545 this->Log(DEFAULT,"Module %s unloaded",filename);
551 this->Log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
552 snprintf(MODERR,MAXBUF,"Module not loaded");
556 bool InspIRCd::LoadModule(const char* filename)
558 /* Do we have a glob pattern in the filename?
559 * The user wants to load multiple modules which
562 if (strchr(filename,'*') || (strchr(filename,'?')))
565 DIR* library = opendir(Config->ModPath);
568 /* Try and locate and load all modules matching the pattern */
569 dirent* entry = NULL;
570 while ((entry = readdir(library)))
572 if (this->MatchText(entry->d_name, filename))
574 if (!this->LoadModule(entry->d_name))
580 /* Loadmodule will now return false if any one of the modules failed
581 * to load (but wont abort when it encounters a bad one) and when 1 or
582 * more modules were actually loaded.
584 return (n_match > 0);
587 char modfile[MAXBUF];
588 snprintf(modfile,MAXBUF,"%s/%s",Config->ModPath,filename);
589 std::string filename_str = filename;
591 if (!ServerConfig::DirValid(modfile))
593 this->Log(DEFAULT,"Module %s is not within the modules directory.",modfile);
594 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
597 this->Log(DEBUG,"Loading module: %s",modfile);
599 if (ServerConfig::FileExists(modfile))
602 for (unsigned int j = 0; j < Config->module_names.size(); j++)
604 if (Config->module_names[j] == filename_str)
606 this->Log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
607 snprintf(MODERR,MAXBUF,"Module already loaded");
613 ircd_module* a = new ircd_module(this, modfile);
614 factory[this->ModCount+1] = a;
615 if (factory[this->ModCount+1]->LastError())
617 this->Log(DEFAULT,"Unable to load %s: %s",modfile,factory[this->ModCount+1]->LastError());
618 snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[this->ModCount+1]->LastError());
621 if ((long)factory[this->ModCount+1]->factory != -1)
623 Module* m = factory[this->ModCount+1]->factory->CreateModule(this);
625 Version v = m->GetVersion();
627 if (v.API != API_VERSION)
631 this->Log(DEFAULT,"Unable to load %s: Incorrect module API version: %d (our version: %d)",modfile,v.API,API_VERSION);
632 snprintf(MODERR,MAXBUF,"Loader/Linker error: Incorrect module API version: %d (our version: %d)",v.API,API_VERSION);
637 this->Log(DEFAULT,"New module introduced: %s (API version %d, Module version %d.%d.%d.%d)%s", filename, v.API, v.Major, v.Minor, v.Revision, v.Build, (!(v.Flags & VF_VENDOR) ? " [3rd Party]" : " [Vendor]"));
640 modules[this->ModCount+1] = m;
641 /* save the module and the module's classfactory, if
642 * this isnt done, random crashes can occur :/ */
643 Config->module_names.push_back(filename);
645 char* x = &Config->implement_lists[this->ModCount+1][0];
646 for(int t = 0; t < 255; t++)
649 modules[this->ModCount+1]->Implements(x);
651 for(int t = 0; t < 255; t++)
652 Config->global_implementation[t] += Config->implement_lists[this->ModCount+1][t];
656 this->Log(DEFAULT,"Unable to load %s",modfile);
657 snprintf(MODERR,MAXBUF,"Factory function failed: Probably missing init_module() entrypoint.");
661 catch (ModuleException& modexcept)
663 this->Log(DEFAULT,"Unable to load %s: ",modfile,modexcept.GetReason());
664 snprintf(MODERR,MAXBUF,"Factory function threw an exception: %s",modexcept.GetReason());
670 this->Log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
671 snprintf(MODERR,MAXBUF,"Module file could not be found");
675 FOREACH_MOD_I(this,I_OnLoadModule,OnLoadModule(modules[this->ModCount],filename_str));
676 // now work out which modules, if any, want to move to the back of the queue,
677 // and if they do, move them there.
678 std::vector<std::string> put_to_back;
679 std::vector<std::string> put_to_front;
680 std::map<std::string,std::string> put_before;
681 std::map<std::string,std::string> put_after;
682 for (unsigned int j = 0; j < Config->module_names.size(); j++)
684 if (modules[j]->Prioritize() == PRIORITY_LAST)
685 put_to_back.push_back(Config->module_names[j]);
686 else if (modules[j]->Prioritize() == PRIORITY_FIRST)
687 put_to_front.push_back(Config->module_names[j]);
688 else if ((modules[j]->Prioritize() & 0xFF) == PRIORITY_BEFORE)
689 put_before[Config->module_names[j]] = Config->module_names[modules[j]->Prioritize() >> 8];
690 else if ((modules[j]->Prioritize() & 0xFF) == PRIORITY_AFTER)
691 put_after[Config->module_names[j]] = Config->module_names[modules[j]->Prioritize() >> 8];
693 for (unsigned int j = 0; j < put_to_back.size(); j++)
694 MoveToLast(put_to_back[j]);
695 for (unsigned int j = 0; j < put_to_front.size(); j++)
696 MoveToFirst(put_to_front[j]);
697 for (std::map<std::string,std::string>::iterator j = put_before.begin(); j != put_before.end(); j++)
698 MoveBefore(j->first,j->second);
699 for (std::map<std::string,std::string>::iterator j = put_after.begin(); j != put_after.end(); j++)
700 MoveAfter(j->first,j->second);
705 void InspIRCd::DoOneIteration(bool process_module_sockets)
707 /* time() seems to be a pretty expensive syscall, so avoid calling it too much.
708 * Once per loop iteration is pleanty.
713 /* Run background module timers every few seconds
714 * (the docs say modules shouldnt rely on accurate
715 * timing using this event, so we dont have to
716 * time this exactly).
721 WriteOpers("*** \002EH?!\002 -- Time is flowing BACKWARDS in this dimension! Clock drifted backwards %d secs.",abs(OLDTIME-TIME));
722 if ((TIME % 3600) == 0)
724 irc::whowas::MaintainWhoWas(this, TIME);
726 Timers->TickTimers(TIME);
727 this->DoBackgroundUserStuff(TIME);
731 XLines->expire_lines();
732 FOREACH_MOD_I(this,I_OnBackgroundTimer,OnBackgroundTimer(TIME));
733 Timers->TickMissedTimers(TIME);
737 /* Call the socket engine to wait on the active
738 * file descriptors. The socket engine has everything's
739 * descriptors in its list... dns, modules, users,
740 * servers... so its nice and easy, just one call.
741 * This will cause any read or write events to be
742 * dispatched to their handlers.
744 SE->DispatchEvents();
747 bool InspIRCd::IsIdent(const char* n)
752 for (char* i = (char*)n; *i; i++)
754 if ((*i >= 'A') && (*i <= '}'))
758 if (((*i >= '0') && (*i <= '9')) || (*i == '-') || (*i == '.'))
772 DoOneIteration(true);
774 /* This is never reached -- we hope! */
778 /**********************************************************************************/
781 * An ircd in four lines! bwahahaha. ahahahahaha. ahahah *cough*.
784 int main(int argc, char** argv)
786 SI = new InspIRCd(argc, argv);
792 /* this returns true when all modules are satisfied that the user should be allowed onto the irc server
793 * (until this returns true, a user will block in the waiting state, waiting to connect up to the
794 * registration timeout maximum seconds)
796 bool InspIRCd::AllModulesReportReady(userrec* user)
798 if (!Config->global_implementation[I_OnCheckReady])
801 for (int i = 0; i <= this->GetModuleCount(); i++)
803 if (Config->implement_lists[i][I_OnCheckReady])
805 int res = modules[i]->OnCheckReady(user);
813 int InspIRCd::GetModuleCount()
815 return this->ModCount;
818 time_t InspIRCd::Time(bool delta)
821 return TIME + time_delta;
825 int InspIRCd::SetTimeDelta(int delta)
827 int old = time_delta;
829 this->Log(DEBUG, "Time delta set to %d (was %d)", time_delta, old);
833 bool FileLogger::Readable()
838 void FileLogger::HandleEvent(EventType et, int errornum)
840 this->WriteLogLine("");
841 ServerInstance->SE->DelFd(this);
844 void FileLogger::WriteLogLine(const std::string &line)
851 int written = fprintf(log,"%s",buffer.c_str());
852 if ((written >= 0) && (written < (int)buffer.length()))
854 buffer.erase(0, buffer.length());
855 ServerInstance->SE->AddFd(this);
857 else if (written == -1)
860 ServerInstance->SE->AddFd(this);
864 /* Wrote the whole buffer, and no need for write callback */
874 void FileLogger::Close()
878 int flags = fcntl(fileno(log), F_GETFL, 0);
879 fcntl(fileno(log), F_SETFL, flags ^ O_NONBLOCK);
881 fprintf(log,"%s",buffer.c_str());
886 ServerInstance->SE->DelFd(this);
889 FileLogger::FileLogger(InspIRCd* Instance, FILE* logfile) : ServerInstance(Instance), log(logfile), writeops(0)
891 irc::sockets::NonBlocking(fileno(log));
892 this->SetFd(fileno(log));
896 FileLogger::~FileLogger()