1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2007 InspIRCd Development Team
6 * See: http://www.inspircd.org/wiki/index.php/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
15 #include "configreader.h"
23 #include "socketengine.h"
24 #include "inspircd_se_config.h"
27 #include "command_parse.h"
30 using irc::sockets::NonBlocking;
31 using irc::sockets::Blocking;
32 using irc::sockets::insp_ntoa;
33 using irc::sockets::insp_inaddr;
34 using irc::sockets::insp_sockaddr;
38 void InspIRCd::AddServerName(const std::string &servername)
40 this->Log(DEBUG,"Adding server name: %s",servername.c_str());
42 if(find(servernames.begin(), servernames.end(), servername) == servernames.end())
43 servernames.push_back(servername); /* Wasn't already there. */
46 const char* InspIRCd::FindServerNamePtr(const std::string &servername)
48 servernamelist::iterator iter = find(servernames.begin(), servernames.end(), servername);
50 if(iter == servernames.end())
52 AddServerName(servername);
53 iter = --servernames.end();
59 bool InspIRCd::FindServerName(const std::string &servername)
61 return (find(servernames.begin(), servernames.end(), servername) != servernames.end());
64 void InspIRCd::Exit(int status)
69 void InspIRCd::Start()
71 printf("\033[1;32mInspire Internet Relay Chat Server, compiled %s at %s\n",__DATE__,__TIME__);
72 printf("(C) InspIRCd Development Team.\033[0m\n\n");
73 printf("Developers:\t\t\033[1;32mBrain, FrostyCoolSlug, w00t, Om, Special, pippijn, peavey\033[0m\n");
74 printf("Others:\t\t\t\033[1;32mSee /INFO Output\033[0m\n");
77 void InspIRCd::Rehash(int status)
79 SI->WriteOpers("Rehashing config file %s due to SIGHUP",ServerConfig::CleanFilename(CONFIG_FILE));
80 fclose(SI->Config->log_file);
82 SI->Config->Read(false,NULL);
83 FOREACH_MOD_I(SI,I_OnRehash,OnRehash(""));
86 void InspIRCd::SetSignals()
88 signal(SIGALRM, SIG_IGN);
89 signal(SIGHUP, InspIRCd::Rehash);
90 signal(SIGPIPE, SIG_IGN);
91 signal(SIGTERM, InspIRCd::Exit);
92 signal(SIGCHLD, SIG_IGN);
95 bool InspIRCd::DaemonSeed()
98 if ((childpid = fork ()) < 0)
100 else if (childpid > 0)
102 /* We wait here for the child process to kill us,
103 * so that the shell prompt doesnt come back over
105 * Sending a kill with a signal of 0 just checks
106 * if the child pid is still around. If theyre not,
107 * they threw an error and we should give up.
109 while (kill(childpid, 0) != -1)
115 printf("InspIRCd Process ID: \033[1;32m%lu\033[0m\n",(unsigned long)getpid());
118 if (getrlimit(RLIMIT_CORE, &rl) == -1)
120 this->Log(DEFAULT,"Failed to getrlimit()!");
125 rl.rlim_cur = rl.rlim_max;
126 if (setrlimit(RLIMIT_CORE, &rl) == -1)
127 this->Log(DEFAULT,"setrlimit() failed, cannot increase coredump size.");
133 void InspIRCd::WritePID(const std::string &filename)
135 std::string fname = (filename.empty() ? "inspircd.pid" : filename);
136 if (*(fname.begin()) != '/')
138 std::string::size_type pos;
139 std::string confpath = CONFIG_FILE;
140 if ((pos = confpath.find("/inspircd.conf")) != std::string::npos)
142 /* Leaves us with just the path */
143 fname = confpath.substr(0, pos) + std::string("/") + fname;
146 std::ofstream outfile(fname.c_str());
147 if (outfile.is_open())
154 printf("Failed to write PID-file '%s', exiting.\n",fname.c_str());
155 this->Log(DEFAULT,"Failed to write PID-file '%s', exiting.",fname.c_str());
160 std::string InspIRCd::GetRevision()
165 InspIRCd::InspIRCd(int argc, char** argv)
166 : 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)
174 this->Config = new ServerConfig(this);
175 this->Config->opertypes.clear();
176 this->Config->operclass.clear();
177 this->SNO = new SnomaskManager(this);
179 this->TIME = this->OLDTIME = this->startup_time = time(NULL);
180 this->time_delta = 0;
181 this->next_call = this->TIME + 3;
183 this->Log(DEBUG,"*** InspIRCd starting up!");
184 if (!ServerConfig::FileExists(CONFIG_FILE))
186 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
187 this->Log(DEFAULT,"main: no config");
188 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
191 *this->LogFileName = 0;
193 for (int i = 1; i < argc; i++)
195 if (!strcmp(argv[i],"-nofork"))
197 Config->nofork = true;
199 else if(!strcmp(argv[i],"-debug"))
201 Config->forcedebug = true;
203 else if(!strcmp(argv[i],"-nolog"))
205 Config->writelog = false;
207 else if (!strcmp(argv[i],"-wait"))
211 else if (!strcmp(argv[i],"-logfile"))
215 strlcpy(LogFileName,argv[i+1],MAXBUF);
216 printf("LOG: Setting logfile to %s\n",LogFileName);
220 printf("ERROR: The -logfile parameter must be followed by a log file name and path.\n");
227 printf("Usage: %s [-nofork] [-nolog] [-debug] [-wait] [-logfile <filename>]\n",argv[0]);
233 strlcpy(Config->MyExecutable,argv[0],MAXBUF);
235 this->OpenLog(argv, argc);
236 this->stats = new serverstats();
237 this->Parser = new CommandParser(this);
238 this->Timers = new TimerManager();
239 this->XLines = new XLineManager(this);
240 Config->ClearStack();
241 Config->Read(true, NULL);
243 this->Modes = new ModeParser(this);
244 this->AddServerName(Config->ServerName);
246 InitializeDisabledCommands(Config->DisabledCommands, this);
247 stats->BoundPortCount = BindPorts(true, found_ports, pl);
249 for(int t = 0; t < 255; t++)
250 Config->global_implementation[t] = 0;
252 memset(&Config->implement_lists,0,sizeof(Config->implement_lists));
258 if (!this->DaemonSeed())
260 printf("ERROR: could not go into daemon mode. Shutting down.\n");
265 /* Because of limitations in kqueue on freebsd, we must fork BEFORE we
266 * initialize the socket engine.
268 SocketEngineFactory* SEF = new SocketEngineFactory();
269 SE = SEF->Create(this);
272 this->Res = new DNS(this);
274 this->LoadAllModules();
275 /* Just in case no modules were loaded - fix for bug #101 */
276 this->BuildISupport();
278 if ((stats->BoundPortCount == 0) && (found_ports > 0))
280 printf("\nERROR: I couldn't bind any ports! Are you sure you didn't start InspIRCd twice?\n");
284 if (stats->BoundPortCount != (unsigned int)found_ports)
286 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);
287 printf("The following port%s failed to bind:\n", found_ports - stats->BoundPortCount != 1 ? "s" : "");
289 for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
291 printf("%d.\tIP: %s\tPort: %lu\n", j, i->first.empty() ? "<all>" : i->first.c_str(), (unsigned long)i->second);
295 /* Add the listening sockets used for client inbound connections
296 * to the socket engine
298 this->Log(DEBUG,"%d listeners",stats->BoundPortCount);
299 for (unsigned long count = 0; count < stats->BoundPortCount; count++)
301 this->Log(DEBUG,"Add listener: %d",Config->openSockfd[count]->GetFd());
302 if (!SE->AddFd(Config->openSockfd[count]))
304 printf("\nEH? Could not add listener to socketengine. You screwed up, aborting.\n");
311 if (kill(getppid(), SIGTERM) == -1)
312 printf("Error killing parent process: %s\n",strerror(errno));
318 printf("\nInspIRCd is now running!\n");
320 this->WritePID(Config->PID);
323 std::string InspIRCd::GetVersionString()
325 char versiondata[MAXBUF];
326 char dnsengine[] = "singlethread-object";
327 if (*Config->CustomVersion)
329 snprintf(versiondata,MAXBUF,"%s %s :%s",VERSION,Config->ServerName,Config->CustomVersion);
333 snprintf(versiondata,MAXBUF,"%s %s :%s [FLAGS=%lu,%s,%s]",VERSION,Config->ServerName,SYSTEM,(unsigned long)OPTIMISATION,SE->GetName().c_str(),dnsengine);
338 char* InspIRCd::ModuleError()
343 void InspIRCd::EraseFactory(int j)
346 for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
352 factory.push_back(NULL);
359 void InspIRCd::EraseModule(int j)
362 for (ModuleList::iterator m = modules.begin(); m!= modules.end(); m++)
368 modules.push_back(NULL);
374 for (std::vector<std::string>::iterator v = Config->module_names.begin(); v != Config->module_names.end(); v++)
378 Config->module_names.erase(v);
386 void InspIRCd::MoveTo(std::string modulename,int slot)
388 unsigned int v2 = 256;
389 for (unsigned int v = 0; v < Config->module_names.size(); v++)
391 if (Config->module_names[v] == modulename)
393 // found an instance, swap it with the item at the end
398 if ((v2 != (unsigned int)slot) && (v2 < 256))
400 // Swap the module names over
401 Config->module_names[v2] = Config->module_names[slot];
402 Config->module_names[slot] = modulename;
403 // now swap the module factories
404 ircd_module* temp = factory[v2];
405 factory[v2] = factory[slot];
406 factory[slot] = temp;
407 // now swap the module objects
408 Module* temp_module = modules[v2];
409 modules[v2] = modules[slot];
410 modules[slot] = temp_module;
411 // now swap the implement lists (we dont
412 // need to swap the global or recount it)
413 for (int n = 0; n < 255; n++)
415 char x = Config->implement_lists[v2][n];
416 Config->implement_lists[v2][n] = Config->implement_lists[slot][n];
417 Config->implement_lists[slot][n] = x;
422 this->Log(DEBUG,"Move of %s to slot failed!",modulename.c_str());
426 void InspIRCd::MoveAfter(std::string modulename, std::string after)
428 for (unsigned int v = 0; v < Config->module_names.size(); v++)
430 if (Config->module_names[v] == after)
432 MoveTo(modulename, v);
438 void InspIRCd::MoveBefore(std::string modulename, std::string before)
440 for (unsigned int v = 0; v < Config->module_names.size(); v++)
442 if (Config->module_names[v] == before)
446 MoveTo(modulename, v-1);
450 MoveTo(modulename, v);
457 void InspIRCd::MoveToFirst(std::string modulename)
459 MoveTo(modulename,0);
462 void InspIRCd::MoveToLast(std::string modulename)
464 MoveTo(modulename,this->GetModuleCount());
467 void InspIRCd::BuildISupport()
469 // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
471 v << "WALLCHOPS WALLVOICES MODES=" << MAXMODES << " CHANTYPES=# PREFIX=" << this->Modes->BuildPrefixes() << " MAP MAXCHANNELS=" << MAXCHANS << " MAXBANS=60 VBANLIST NICKLEN=" << NICKMAX-1;
472 v << " CASEMAPPING=rfc1459 STATUSMSG=@%+ CHARSET=ascii TOPICLEN=" << MAXTOPIC << " KICKLEN=" << MAXKICK << " MAXTARGETS=" << Config->MaxTargets << " AWAYLEN=";
473 v << MAXAWAY << " CHANMODES=" << this->Modes->ChanModes() << " FNC NETWORK=" << Config->Network << " MAXPARA=32";
474 Config->data005 = v.str();
475 FOREACH_MOD_I(this,I_On005Numeric,On005Numeric(Config->data005));
479 bool InspIRCd::UnloadModule(const char* filename)
481 std::string filename_str = filename;
482 for (unsigned int j = 0; j != Config->module_names.size(); j++)
484 if (Config->module_names[j] == filename_str)
486 if (modules[j]->GetVersion().Flags & VF_STATIC)
488 this->Log(DEFAULT,"Failed to unload STATIC module %s",filename);
489 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
492 std::pair<int,std::string> intercount = GetInterfaceInstanceCount(modules[j]);
493 if (intercount.first > 0)
495 this->Log(DEFAULT,"Failed to unload module %s, being used by %d other(s) via interface '%s'",filename, intercount.first, intercount.second.c_str());
496 snprintf(MODERR,MAXBUF,"Module not unloadable (Still in use by %d other module%s which %s using its interface '%s') -- unload dependent modules first!",
498 intercount.first > 1 ? "s" : "",
499 intercount.first > 1 ? "are" : "is",
500 intercount.second.c_str());
503 /* Give the module a chance to tidy out all its metadata */
504 for (chan_hash::iterator c = this->chanlist.begin(); c != this->chanlist.end(); c++)
506 modules[j]->OnCleanup(TYPE_CHANNEL,c->second);
508 for (user_hash::iterator u = this->clientlist.begin(); u != this->clientlist.end(); u++)
510 modules[j]->OnCleanup(TYPE_USER,u->second);
513 /* Tidy up any dangling resolvers */
514 this->Res->CleanResolvers(modules[j]);
516 FOREACH_MOD_I(this,I_OnUnloadModule,OnUnloadModule(modules[j],Config->module_names[j]));
518 for(int t = 0; t < 255; t++)
520 Config->global_implementation[t] -= Config->implement_lists[j][t];
523 /* We have to renumber implement_lists after unload because the module numbers change!
525 for(int j2 = j; j2 < 254; j2++)
527 for(int t = 0; t < 255; t++)
529 Config->implement_lists[j2][t] = Config->implement_lists[j2+1][t];
534 this->Log(DEBUG,"Removing dependent commands...");
535 Parser->RemoveCommands(filename);
536 this->Log(DEBUG,"Deleting module...");
537 this->EraseModule(j);
538 this->Log(DEBUG,"Erasing module entry...");
539 this->EraseFactory(j);
540 this->Log(DEFAULT,"Module %s unloaded",filename);
546 this->Log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
547 snprintf(MODERR,MAXBUF,"Module not loaded");
551 bool InspIRCd::LoadModule(const char* filename)
553 /* Do we have a glob pattern in the filename?
554 * The user wants to load multiple modules which
557 if (strchr(filename,'*') || (strchr(filename,'?')))
560 DIR* library = opendir(Config->ModPath);
563 /* Try and locate and load all modules matching the pattern */
564 dirent* entry = NULL;
565 while ((entry = readdir(library)))
567 if (this->MatchText(entry->d_name, filename))
569 if (!this->LoadModule(entry->d_name))
575 /* Loadmodule will now return false if any one of the modules failed
576 * to load (but wont abort when it encounters a bad one) and when 1 or
577 * more modules were actually loaded.
579 return (n_match > 0);
582 char modfile[MAXBUF];
583 snprintf(modfile,MAXBUF,"%s/%s",Config->ModPath,filename);
584 std::string filename_str = filename;
586 if (!ServerConfig::DirValid(modfile))
588 this->Log(DEFAULT,"Module %s is not within the modules directory.",modfile);
589 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
592 this->Log(DEBUG,"Loading module: %s",modfile);
594 if (ServerConfig::FileExists(modfile))
597 for (unsigned int j = 0; j < Config->module_names.size(); j++)
599 if (Config->module_names[j] == filename_str)
601 this->Log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
602 snprintf(MODERR,MAXBUF,"Module already loaded");
608 ircd_module* a = new ircd_module(this, modfile);
609 factory[this->ModCount+1] = a;
610 if (factory[this->ModCount+1]->LastError())
612 this->Log(DEFAULT,"Unable to load %s: %s",modfile,factory[this->ModCount+1]->LastError());
613 snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[this->ModCount+1]->LastError());
616 if ((long)factory[this->ModCount+1]->factory != -1)
618 Module* m = factory[this->ModCount+1]->factory->CreateModule(this);
620 Version v = m->GetVersion();
622 if (v.API != API_VERSION)
626 this->Log(DEFAULT,"Unable to load %s: Incorrect module API version: %d (our version: %d)",modfile,v.API,API_VERSION);
627 snprintf(MODERR,MAXBUF,"Loader/Linker error: Incorrect module API version: %d (our version: %d)",v.API,API_VERSION);
632 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]"));
635 modules[this->ModCount+1] = m;
636 /* save the module and the module's classfactory, if
637 * this isnt done, random crashes can occur :/ */
638 Config->module_names.push_back(filename);
640 char* x = &Config->implement_lists[this->ModCount+1][0];
641 for(int t = 0; t < 255; t++)
644 modules[this->ModCount+1]->Implements(x);
646 for(int t = 0; t < 255; t++)
647 Config->global_implementation[t] += Config->implement_lists[this->ModCount+1][t];
651 this->Log(DEFAULT,"Unable to load %s",modfile);
652 snprintf(MODERR,MAXBUF,"Factory function failed: Probably missing init_module() entrypoint.");
656 catch (ModuleException& modexcept)
658 this->Log(DEFAULT,"Unable to load %s: ",modfile,modexcept.GetReason());
659 snprintf(MODERR,MAXBUF,"Factory function threw an exception: %s",modexcept.GetReason());
665 this->Log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
666 snprintf(MODERR,MAXBUF,"Module file could not be found");
670 FOREACH_MOD_I(this,I_OnLoadModule,OnLoadModule(modules[this->ModCount],filename_str));
671 // now work out which modules, if any, want to move to the back of the queue,
672 // and if they do, move them there.
673 std::vector<std::string> put_to_back;
674 std::vector<std::string> put_to_front;
675 std::map<std::string,std::string> put_before;
676 std::map<std::string,std::string> put_after;
677 for (unsigned int j = 0; j < Config->module_names.size(); j++)
679 if (modules[j]->Prioritize() == PRIORITY_LAST)
680 put_to_back.push_back(Config->module_names[j]);
681 else if (modules[j]->Prioritize() == PRIORITY_FIRST)
682 put_to_front.push_back(Config->module_names[j]);
683 else if ((modules[j]->Prioritize() & 0xFF) == PRIORITY_BEFORE)
684 put_before[Config->module_names[j]] = Config->module_names[modules[j]->Prioritize() >> 8];
685 else if ((modules[j]->Prioritize() & 0xFF) == PRIORITY_AFTER)
686 put_after[Config->module_names[j]] = Config->module_names[modules[j]->Prioritize() >> 8];
688 for (unsigned int j = 0; j < put_to_back.size(); j++)
689 MoveToLast(put_to_back[j]);
690 for (unsigned int j = 0; j < put_to_front.size(); j++)
691 MoveToFirst(put_to_front[j]);
692 for (std::map<std::string,std::string>::iterator j = put_before.begin(); j != put_before.end(); j++)
693 MoveBefore(j->first,j->second);
694 for (std::map<std::string,std::string>::iterator j = put_after.begin(); j != put_after.end(); j++)
695 MoveAfter(j->first,j->second);
700 void InspIRCd::DoOneIteration(bool process_module_sockets)
704 /* time() seems to be a pretty expensive syscall, so avoid calling it too much.
705 * Once per loop iteration is pleanty.
710 /* Run background module timers every few seconds
711 * (the docs say modules shouldnt rely on accurate
712 * timing using this event, so we dont have to
713 * time this exactly).
718 WriteOpers("*** \002EH?!\002 -- Time is flowing BACKWARDS in this dimension! Clock drifted backwards %d secs.",abs(OLDTIME-TIME));
719 if ((TIME % 3600) == 0)
721 irc::whowas::MaintainWhoWas(this, TIME);
723 Timers->TickTimers(TIME);
724 this->DoBackgroundUserStuff(TIME);
728 XLines->expire_lines();
729 FOREACH_MOD_I(this,I_OnBackgroundTimer,OnBackgroundTimer(TIME));
730 Timers->TickMissedTimers(TIME);
733 if (!getrusage(0, &ru))
735 gettimeofday(&this->stats->LastSampled, NULL);
736 this->stats->LastCPU = ru.ru_utime;
740 /* Call the socket engine to wait on the active
741 * file descriptors. The socket engine has everything's
742 * descriptors in its list... dns, modules, users,
743 * servers... so its nice and easy, just one call.
744 * This will cause any read or write events to be
745 * dispatched to their handlers.
747 SE->DispatchEvents();
750 bool InspIRCd::IsIdent(const char* n)
755 for (char* i = (char*)n; *i; i++)
757 if ((*i >= 'A') && (*i <= '}'))
761 if (((*i >= '0') && (*i <= '9')) || (*i == '-') || (*i == '.'))
775 DoOneIteration(true);
777 /* This is never reached -- we hope! */
781 /**********************************************************************************/
784 * An ircd in four lines! bwahahaha. ahahahahaha. ahahah *cough*.
787 int main(int argc, char** argv)
789 SI = new InspIRCd(argc, argv);
795 /* this returns true when all modules are satisfied that the user should be allowed onto the irc server
796 * (until this returns true, a user will block in the waiting state, waiting to connect up to the
797 * registration timeout maximum seconds)
799 bool InspIRCd::AllModulesReportReady(userrec* user)
801 if (!Config->global_implementation[I_OnCheckReady])
804 for (int i = 0; i <= this->GetModuleCount(); i++)
806 if (Config->implement_lists[i][I_OnCheckReady])
808 int res = modules[i]->OnCheckReady(user);
816 int InspIRCd::GetModuleCount()
818 return this->ModCount;
821 time_t InspIRCd::Time(bool delta)
824 return TIME + time_delta;
828 int InspIRCd::SetTimeDelta(int delta)
830 int old = time_delta;
832 this->Log(DEBUG, "Time delta set to %d (was %d)", time_delta, old);
836 void InspIRCd::AddLocalClone(userrec* user)
838 clonemap::iterator x = local_clones.find(user->GetIPString());
839 if (x != local_clones.end())
842 local_clones[user->GetIPString()] = 1;
845 void InspIRCd::AddGlobalClone(userrec* user)
847 clonemap::iterator y = global_clones.find(user->GetIPString());
848 if (y != global_clones.end())
851 global_clones[user->GetIPString()] = 1;
854 int InspIRCd::GetTimeDelta()
859 bool FileLogger::Readable()
864 void FileLogger::HandleEvent(EventType et, int errornum)
866 this->WriteLogLine("");
867 ServerInstance->SE->DelFd(this);
870 void FileLogger::WriteLogLine(const std::string &line)
877 int written = fprintf(log,"%s",buffer.c_str());
878 if ((written >= 0) && (written < (int)buffer.length()))
880 buffer.erase(0, buffer.length());
881 ServerInstance->SE->AddFd(this);
883 else if (written == -1)
886 ServerInstance->SE->AddFd(this);
890 /* Wrote the whole buffer, and no need for write callback */
900 void FileLogger::Close()
904 int flags = fcntl(fileno(log), F_GETFL, 0);
905 fcntl(fileno(log), F_SETFL, flags ^ O_NONBLOCK);
907 fprintf(log,"%s",buffer.c_str());
912 ServerInstance->SE->DelFd(this);
915 FileLogger::FileLogger(InspIRCd* Instance, FILE* logfile) : ServerInstance(Instance), log(logfile), writeops(0)
917 irc::sockets::NonBlocking(fileno(log));
918 this->SetFd(fileno(log));
922 FileLogger::~FileLogger()