1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * Inspire is copyright (C) 2002-2005 ChatSpike-Dev.
7 * <brain@chatspike.net>
8 * <Craig@chatspike.net>
10 * Written by Craig Edwards, Craig McLure, and others.
11 * This program is free but copyrighted software; see
12 * the file COPYING for details.
14 * ---------------------------------------------------
17 /* Now with added unF! ;) */
21 #include "inspircd_config.h"
23 #include "inspircd_io.h"
26 #include <sys/errno.h>
27 #include <sys/ioctl.h>
28 #include <sys/utsname.h>
32 #include <ext/hash_map>
53 #include "inspstring.h"
55 #include "helperfuncs.h"
57 #include "socketengine.h"
58 #include "userprocess.h"
61 #include "command_parse.h"
63 InspIRCd* ServerInstance;
65 int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'stale'
66 int WHOWAS_MAX = 100; // default 100 people maximum in the WHOWAS list
68 extern std::vector<Module*> modules;
69 extern std::vector<ircd_module*> factory;
71 std::vector<InspSocket*> module_sockets;
72 std::vector<userrec*> local_users;
75 int openSockfd[MAXSOCKS];
76 sockaddr_in client,server;
79 extern InspSocket* socket_ref[MAX_DESCRIPTORS];
81 time_t TIME = time(NULL), OLDTIME = time(NULL);
83 // This table references users by file descriptor.
84 // its an array to make it VERY fast, as all lookups are referenced
85 // by an integer, meaning there is no need for a scan/search operation.
86 userrec* fd_ref_table[65536];
88 Server* MyServer = new Server;
89 ServerConfig *Config = new ServerConfig;
94 servernamelist servernames;
97 void AddServerName(std::string servername)
99 log(DEBUG,"Adding server name: %s",servername.c_str());
100 for (servernamelist::iterator a = servernames.begin(); a < servernames.end(); a++)
102 if (*a == servername)
105 servernames.push_back(servername);
108 const char* FindServerNamePtr(std::string servername)
110 for (servernamelist::iterator a = servernames.begin(); a < servernames.end(); a++)
112 if (*a == servername)
115 AddServerName(servername);
116 return FindServerNamePtr(servername);
119 std::string InspIRCd::GetRevision()
121 /* w00t got me to replace a bunch of strtok_r
122 * with something nicer, so i did this. Its the
123 * same thing really, only in C++. It places the
124 * text into a std::stringstream which is a readable
125 * and writeable buffer stream, and then pops two
126 * words off it, space delimited. Because it reads
127 * into the same variable twice, the first word
128 * is discarded, and the second one returned.
130 std::stringstream Revision("$Revision$");
132 Revision >> single >> single;
136 void InspIRCd::MakeLowerMap()
138 // initialize the lowercase mapping table
139 for (unsigned int cn = 0; cn < 256; cn++)
141 // lowercase the uppercase chars
142 for (unsigned int cn = 65; cn < 91; cn++)
143 lowermap[cn] = tolower(cn);
144 // now replace the specific chars for scandanavian comparison
145 lowermap[(unsigned)'['] = '{';
146 lowermap[(unsigned)']'] = '}';
147 lowermap[(unsigned)'\\'] = '|';
150 InspIRCd::InspIRCd(int argc, char** argv)
153 module_sockets.clear();
154 this->startup_time = time(NULL);
156 log(DEBUG,"*** InspIRCd starting up!");
157 if (!FileExists(CONFIG_FILE))
159 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
160 log(DEFAULT,"main: no config");
161 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
165 for (int i = 1; i < argc; i++)
167 if (!strcmp(argv[i],"-nofork")) {
168 Config->nofork = true;
170 if (!strcmp(argv[i],"-wait")) {
173 if (!strcmp(argv[i],"-nolimit")) {
174 Config->unlimitcore = true;
179 strlcpy(Config->MyExecutable,argv[0],MAXBUF);
181 this->MakeLowerMap();
184 Config->ClearStack();
185 Config->Read(true,NULL);
187 this->ModeGrok = new ModeParser();
188 this->Parser = new CommandParser();
189 this->stats = new serverstats();
190 AddServerName(Config->ServerName);
192 stats->BoundPortCount = BindPorts();
194 for(int t = 0; t < 255; t++)
195 Config->global_implementation[t] = 0;
197 memset(&Config->implement_lists,0,sizeof(Config->implement_lists));
203 if (DaemonSeed() == ERROR)
205 printf("ERROR: could not go into daemon mode. Shutting down.\n");
210 /* Because of limitations in kqueue on freebsd, we must fork BEFORE we
211 * initialize the socket engine.
213 SE = new SocketEngine();
215 /* We must load the modules AFTER initializing the socket engine, now */
220 std::string InspIRCd::GetVersionString()
222 char versiondata[MAXBUF];
224 char dnsengine[] = "multithread";
226 char dnsengine[] = "singlethread";
228 snprintf(versiondata,MAXBUF,"%s Rev. %s %s :%s [FLAGS=%lu,%s,%s]",VERSION,GetRevision().c_str(),Config->ServerName,SYSTEM,(unsigned long)OPTIMISATION,SE->GetName().c_str(),dnsengine);
232 char* InspIRCd::ModuleError()
237 void InspIRCd::erase_factory(int j)
240 for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
245 factory.push_back(NULL);
252 void InspIRCd::erase_module(int j)
255 for (std::vector<Module*>::iterator m = modules.begin(); m!= modules.end(); m++)
261 modules.push_back(NULL);
267 for (std::vector<std::string>::iterator v = Config->module_names.begin(); v != Config->module_names.end(); v++)
271 Config->module_names.erase(v);
279 void InspIRCd::BuildISupport()
281 // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
283 v << "WALLCHOPS MODES=13 CHANTYPES=# PREFIX=(ohv)@%+ MAP SAFELIST MAXCHANNELS=" << MAXCHANS << " MAXBANS=60 NICKLEN=" << NICKMAX;
284 v << " CASEMAPPING=rfc1459 STATUSMSG=@+ CHARSET=ascii TOPICLEN=" << MAXTOPIC << " KICKLEN=" << MAXKICK << " MAXTARGETS=20 AWAYLEN=";
285 v << MAXAWAY << " CHANMODES=ohvb,k,l,psmnti NETWORK=" << Config->Network;
286 Config->data005 = v.str();
287 FOREACH_MOD(I_On005Numeric,On005Numeric(Config->data005));
290 bool InspIRCd::UnloadModule(const char* filename)
292 std::string filename_str = filename;
293 for (unsigned int j = 0; j != Config->module_names.size(); j++)
295 if (Config->module_names[j] == filename_str)
297 if (modules[j]->GetVersion().Flags & VF_STATIC)
299 log(DEFAULT,"Failed to unload STATIC module %s",filename);
300 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
303 /* Give the module a chance to tidy out all its metadata */
304 for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
306 modules[j]->OnCleanup(TYPE_CHANNEL,c->second);
308 for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
310 modules[j]->OnCleanup(TYPE_USER,u->second);
313 for(int t = 0; t < 255; t++)
315 Config->global_implementation[t] -= Config->implement_lists[j][t];
318 FOREACH_MOD(I_OnUnloadModule,OnUnloadModule(modules[j],Config->module_names[j]));
320 log(DEBUG,"Deleting module...");
322 log(DEBUG,"Erasing module entry...");
324 log(DEBUG,"Removing dependent commands...");
325 Parser->RemoveCommands(filename);
326 log(DEFAULT,"Module %s unloaded",filename);
332 log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
333 snprintf(MODERR,MAXBUF,"Module not loaded");
337 bool InspIRCd::LoadModule(const char* filename)
339 char modfile[MAXBUF];
341 strlcpy(modfile,filename,MAXBUF);
343 snprintf(modfile,MAXBUF,"%s/%s",Config->ModPath,filename);
345 std::string filename_str = filename;
347 if (!DirValid(modfile))
349 log(DEFAULT,"Module %s is not within the modules directory.",modfile);
350 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
354 log(DEBUG,"Loading module: %s",modfile);
356 if (FileExists(modfile))
359 for (unsigned int j = 0; j < Config->module_names.size(); j++)
361 if (Config->module_names[j] == filename_str)
363 log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
364 snprintf(MODERR,MAXBUF,"Module already loaded");
368 ircd_module* a = new ircd_module(modfile);
369 factory[MODCOUNT+1] = a;
370 if (factory[MODCOUNT+1]->LastError())
372 log(DEFAULT,"Unable to load %s: %s",modfile,factory[MODCOUNT+1]->LastError());
373 snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[MODCOUNT+1]->LastError());
377 if (factory[MODCOUNT+1]->factory)
379 Module* m = factory[MODCOUNT+1]->factory->CreateModule(MyServer);
380 modules[MODCOUNT+1] = m;
381 /* save the module and the module's classfactory, if
382 * this isnt done, random crashes can occur :/ */
383 Config->module_names.push_back(filename);
385 char* x = &Config->implement_lists[MODCOUNT+1][0];
386 for(int t = 0; t < 255; t++)
389 modules[MODCOUNT+1]->Implements(x);
391 for(int t = 0; t < 255; t++)
393 Config->global_implementation[t] += Config->implement_lists[MODCOUNT+1][t];
394 if (Config->implement_lists[MODCOUNT+1][t])
396 log(DEBUG,"Add global implementation: %d %d => %d",MODCOUNT+1,t,Config->global_implementation[t]);
402 log(DEFAULT,"Unable to load %s",modfile);
403 snprintf(MODERR,MAXBUF,"Factory function failed!");
410 log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
411 snprintf(MODERR,MAXBUF,"Module file could not be found");
416 FOREACH_MOD(I_OnLoadModule,OnLoadModule(modules[MODCOUNT],filename_str));
423 bool expire_run = false;
424 int activefds[MAX_DESCRIPTORS];
428 InspSocket* s = NULL;
429 InspSocket* s_del = NULL;
431 unsigned int numberactive;
432 sockaddr_in sock_us; // our port number
433 socklen_t uslen; // length of our port number
435 /* Until THIS point, ServerInstance == NULL */
437 LoadAllModules(this);
439 printf("\nInspIRCd is now running!\n");
443 freopen("/dev/null","w",stdout);
444 freopen("/dev/null","w",stderr);
447 /* Add the listening sockets used for client inbound connections
448 * to the socket engine
450 for (int count = 0; count < stats->BoundPortCount; count++)
451 SE->AddFd(openSockfd[count],true,X_LISTEN);
453 WritePID(Config->PID);
455 /* main loop, this never returns */
458 /* time() seems to be a pretty expensive syscall, so avoid calling it too much.
459 * Once per loop iteration is pleanty.
464 /* Run background module timers every few seconds
465 * (the docs say modules shouldnt rely on accurate
466 * timing using this event, so we dont have to
467 * time this exactly).
469 if (((TIME % 8) == 0) && (!expire_run))
472 FOREACH_MOD(I_OnBackgroundTimer,OnBackgroundTimer(TIME));
476 else if ((TIME % 8) == 1)
481 /* Once a second, do the background processing */
483 DoBackgroundUserStuff(TIME);
485 /* Call the socket engine to wait on the active
486 * file descriptors. The socket engine has everything's
487 * descriptors in its list... dns, modules, users,
488 * servers... so its nice and easy, just one call.
490 if (!(numberactive = SE->Wait(activefds)))
494 * Now process each of the fd's. For users, we have a fast
495 * lookup table which can find a user by file descriptor, so
496 * processing them by fd isnt expensive. If we have a lot of
497 * listening ports or module sockets though, things could get
500 for (unsigned int activefd = 0; activefd < numberactive; activefd++)
502 int socket_type = SE->GetType(activefds[activefd]);
507 cu = fd_ref_table[activefds[activefd]];
515 /* Process module-owned sockets.
516 * Modules are encouraged to inherit their sockets from
517 * InspSocket so we can process them neatly like this.
519 s = socket_ref[activefds[activefd]];
521 if ((s) && (!s->Poll()))
523 log(DEBUG,"Socket poll returned false, close and bail");
524 SE->DelFd(s->GetFd());
525 for (std::vector<InspSocket*>::iterator a = module_sockets.begin(); a < module_sockets.end(); a++)
527 s_del = (InspSocket*)*a;
528 if ((s_del) && (s_del->GetFd() == activefds[activefd]))
530 module_sockets.erase(a);
542 /* When we are using single-threaded dns,
543 * the sockets for dns end up in our mainloop.
544 * When we are using multi-threaded dns,
545 * each thread has its own basic poll() loop
546 * within it, making them 'fire and forget'
547 * and independent of the mainloop.
550 dns_poll(activefds[activefd]);
556 /* It's a listener */
557 uslen = sizeof(sock_us);
558 length = sizeof(client);
559 incomingSockfd = accept (activefds[activefd],(struct sockaddr*)&client,&length);
560 if (!getsockname(incomingSockfd,(sockaddr*)&sock_us,&uslen))
562 in_port = ntohs(sock_us.sin_port);
563 log(DEBUG,"Accepted socket %d",incomingSockfd);
564 target = (char*)inet_ntoa(client.sin_addr);
565 /* Years and years ago, we used to resolve here
566 * using gethostbyaddr(). That is sucky and we
567 * don't do that any more...
569 if (incomingSockfd >= 0)
571 NonBlocking(incomingSockfd);
572 if (Config->GetIOHook(in_port))
574 Config->GetIOHook(in_port)->OnRawSocketAccept(incomingSockfd, target, in_port);
576 stats->statsAccept++;
577 AddClient(incomingSockfd, target, in_port, false, target);
578 log(DEBUG,"Adding client on port %lu fd=%lu",(unsigned long)in_port,(unsigned long)incomingSockfd);
582 WriteOpers("*** WARNING: accept() failed on port %lu (%s)",(unsigned long)in_port,target);
583 log(DEBUG,"accept failed: %lu",(unsigned long)in_port);
584 stats->statsRefused++;
589 log(DEBUG,"Couldnt look up the port number for fd %lu (OS BROKEN?!)",incomingSockfd);
590 shutdown(incomingSockfd,2);
591 close(incomingSockfd);
596 /* Something went wrong if we're in here.
597 * In fact, so wrong, im not quite sure
598 * what we would do, so for now, its going
599 * to safely do bugger all.
606 /* This is never reached -- we hope! */
610 /**********************************************************************************/
613 * An ircd in four lines! bwahahaha. ahahahahaha. ahahah *cough*.
616 int main(int argc, char** argv)
618 ServerInstance = new InspIRCd(argc, argv);
619 ServerInstance->Run();
620 delete ServerInstance;