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"
24 #include "inspircd_util.h"
27 #include <sys/errno.h>
28 #include <sys/ioctl.h>
29 #include <sys/utsname.h>
32 #include <sys/types.h>
33 #include <sys/event.h>
38 #include <sys/epoll.h>
45 #include <ext/hash_map>
67 #include "inspstring.h"
69 #include "helperfuncs.h"
71 #include "socketengine.h"
75 int LogLevel = DEFAULT;
76 char ServerName[MAXBUF];
78 char ServerDesc[MAXBUF];
79 char AdminName[MAXBUF];
80 char AdminEmail[MAXBUF];
81 char AdminNick[MAXBUF];
83 char restartpass[MAXBUF];
87 char PrefixQuit[MAXBUF];
88 char DieValue[MAXBUF];
89 char DNSServer[MAXBUF];
92 int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'stale'
93 int WHOWAS_MAX = 100; // default 100 people maximum in the WHOWAS list
95 time_t startup_time = time(NULL);
96 int NetBufferSize = 10240; // NetBufferSize used as the buffer size for all read() ops
97 int MaxConn = SOMAXCONN; // size of accept() backlog (128 by default on *BSD)
98 unsigned int SoftLimit = MAXCLIENTS;
99 extern int MaxWhoResults;
103 char DisabledCommands[MAXBUF];
105 bool AllowHalfop = true;
106 bool AllowProtect = true;
107 bool AllowFounder = true;
109 extern std::vector<Module*> modules;
110 std::vector<std::string> module_names;
111 extern std::vector<ircd_module*> factory;
113 std::vector<InspSocket*> module_sockets;
116 int openSockfd[MAXSOCKS];
118 bool unlimitcore = false;
119 struct sockaddr_in client,server;
120 char addrs[MAXBUF][255];
122 char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
124 time_t TIME = time(NULL), OLDTIME = time(NULL);
126 SocketEngine* SE = NULL;
128 bool has_been_netsplit = false;
129 extern std::vector<std::string> include_stack;
131 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, irc::StrHashComp> user_hash;
132 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, irc::StrHashComp> chan_hash;
133 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, irc::InAddr_HashComp> address_cache;
134 typedef nspace::hash_map<std::string, WhoWasUser*, nspace::hash<string>, irc::StrHashComp> whowas_hash;
135 typedef std::deque<command_t> command_table;
136 typedef std::map<std::string,time_t> autoconnects;
137 typedef std::vector<std::string> servernamelist;
139 // This table references users by file descriptor.
140 // its an array to make it VERY fast, as all lookups are referenced
141 // by an integer, meaning there is no need for a scan/search operation.
142 userrec* fd_ref_table[65536];
144 int statsAccept = 0, statsRefused = 0, statsUnknown = 0, statsCollisions = 0, statsDns = 0, statsDnsGood = 0, statsDnsBad = 0, statsConnects = 0, statsSent= 0, statsRecv = 0;
146 Server* MyServer = new Server;
150 user_hash clientlist;
153 command_table cmdlist;
154 autoconnects autoconns;
160 servernamelist servernames;
162 struct linger linger = { 0 };
163 char MyExecutable[1024];
164 int boundPortCount = 0;
165 int portCount = 0, SERVERportCount = 0, ports[MAXSOCKS];
167 char ModPath[MAXBUF];
171 int has_channel(userrec *u, chanrec *c);
172 int usercount(chanrec *c);
173 int usercount_i(chanrec *c);
174 char* Passwd(userrec *user);
175 bool IsDenied(userrec *user);
176 void AddWhoWas(userrec* u);
178 std::stringstream config_f(stringstream::in | stringstream::out);
180 std::vector<userrec*> all_opers;
184 void AddOper(userrec* user)
186 log(DEBUG,"Oper added to optimization list");
187 all_opers.push_back(user);
190 void AddServerName(std::string servername)
192 log(DEBUG,"Adding server name: %s",servername.c_str());
193 for (servernamelist::iterator a = servernames.begin(); a < servernames.end(); a++)
195 if (*a == servername)
198 servernames.push_back(servername);
201 const char* FindServerNamePtr(std::string servername)
203 for (servernamelist::iterator a = servernames.begin(); a < servernames.end(); a++)
205 if (*a == servername)
208 AddServerName(servername);
209 return FindServerNamePtr(servername);
212 void DeleteOper(userrec* user)
214 for (std::vector<userrec*>::iterator a = all_opers.begin(); a < all_opers.end(); a++)
218 log(DEBUG,"Oper removed from optimization list");
225 std::string GetRevision()
227 char Revision[] = "$Revision$";
230 char *v2 = strtok_r(s1," ",&savept);
232 v2 = strtok_r(s1," ",&savept);
234 return std::string(v2);
238 std::string getservername()
243 std::string getserverdesc()
248 std::string getnetworkname()
253 std::string getadminname()
258 std::string getadminemail()
263 std::string getadminnick()
268 void ReadConfig(bool bail, userrec* user)
270 char dbg[MAXBUF],pauseval[MAXBUF],Value[MAXBUF],timeout[MAXBUF],NB[MAXBUF],flood[MAXBUF],MW[MAXBUF],MCON[MAXBUF];
271 char AH[MAXBUF],AP[MAXBUF],AF[MAXBUF],DNT[MAXBUF],pfreq[MAXBUF],thold[MAXBUF],sqmax[MAXBUF],rqmax[MAXBUF],SLIMT[MAXBUF];
273 std::stringstream errstr;
274 include_stack.clear();
276 if (!LoadConf(CONFIG_FILE,&config_f,&errstr))
279 log(DEFAULT,"There were errors in your configuration:\n%s",errstr.str().c_str());
282 printf("There were errors in your configuration:\n%s",errstr.str().c_str());
290 WriteServ(user->fd,"NOTICE %s :There were errors in the configuration file:",user->nick);
291 while (!errstr.eof())
293 errstr.getline(dataline,1024);
294 WriteServ(user->fd,"NOTICE %s :%s",user->nick,dataline);
299 WriteOpers("There were errors in the configuration file:");
300 while (!errstr.eof())
302 errstr.getline(dataline,1024);
303 WriteOpers(dataline);
310 ConfValue("server","name",0,ServerName,&config_f);
311 ConfValue("server","description",0,ServerDesc,&config_f);
312 ConfValue("server","network",0,Network,&config_f);
313 ConfValue("admin","name",0,AdminName,&config_f);
314 ConfValue("admin","email",0,AdminEmail,&config_f);
315 ConfValue("admin","nick",0,AdminNick,&config_f);
316 ConfValue("files","motd",0,motd,&config_f);
317 ConfValue("files","rules",0,rules,&config_f);
318 ConfValue("power","diepass",0,diepass,&config_f);
319 ConfValue("power","pause",0,pauseval,&config_f);
320 ConfValue("power","restartpass",0,restartpass,&config_f);
321 ConfValue("options","prefixquit",0,PrefixQuit,&config_f);
322 ConfValue("die","value",0,DieValue,&config_f);
323 ConfValue("options","loglevel",0,dbg,&config_f);
324 ConfValue("options","netbuffersize",0,NB,&config_f);
325 ConfValue("options","maxwho",0,MW,&config_f);
326 ConfValue("options","allowhalfop",0,AH,&config_f);
327 ConfValue("options","allowprotect",0,AP,&config_f);
328 ConfValue("options","allowfounder",0,AF,&config_f);
329 ConfValue("dns","server",0,DNSServer,&config_f);
330 ConfValue("dns","timeout",0,DNT,&config_f);
331 ConfValue("options","moduledir",0,ModPath,&config_f);
332 ConfValue("disabled","commands",0,DisabledCommands,&config_f);
333 ConfValue("options","somaxconn",0,MCON,&config_f);
334 ConfValue("options","softlimit",0,SLIMT,&config_f);
336 SoftLimit = atoi(SLIMT);
337 if ((SoftLimit < 1) || (SoftLimit > MAXCLIENTS))
339 log(DEFAULT,"WARNING: <options:softlimit> value is greater than %d or less than 0, set to %d.",MAXCLIENTS,MAXCLIENTS);
340 SoftLimit = MAXCLIENTS;
342 MaxConn = atoi(MCON);
343 if (MaxConn > SOMAXCONN)
344 log(DEFAULT,"WARNING: <options:somaxconn> value may be higher than the system-defined SOMAXCONN value!");
345 NetBufferSize = atoi(NB);
346 MaxWhoResults = atoi(MW);
347 dns_timeout = atoi(DNT);
353 strlcpy(DNSServer,"127.0.0.1",MAXBUF);
355 strlcpy(ModPath,MOD_PATH,MAXBUF);
356 AllowHalfop = ((!strcasecmp(AH,"true")) || (!strcasecmp(AH,"1")) || (!strcasecmp(AH,"yes")));
357 AllowProtect = ((!strcasecmp(AP,"true")) || (!strcasecmp(AP,"1")) || (!strcasecmp(AP,"yes")));
358 AllowFounder = ((!strcasecmp(AF,"true")) || (!strcasecmp(AF,"1")) || (!strcasecmp(AF,"yes")));
359 if ((!NetBufferSize) || (NetBufferSize > 65535) || (NetBufferSize < 1024))
361 log(DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
362 NetBufferSize = 10240;
364 if ((!MaxWhoResults) || (MaxWhoResults > 65535) || (MaxWhoResults < 1))
366 log(DEFAULT,"No MaxWhoResults specified or size out of range, setting to default of 128.");
369 if (!strcmp(dbg,"debug"))
371 if (!strcmp(dbg,"verbose"))
373 if (!strcmp(dbg,"default"))
375 if (!strcmp(dbg,"sparse"))
377 if (!strcmp(dbg,"none"))
380 log(DEFAULT,"Reading message of the day...");
381 readfile(RULES,rules);
382 log(DEFAULT,"Reading connect classes...");
384 for (int i = 0; i < ConfValueEnum("connect",&config_f); i++)
387 ConfValue("connect","allow",i,Value,&config_f);
388 ConfValue("connect","timeout",i,timeout,&config_f);
389 ConfValue("connect","flood",i,flood,&config_f);
390 ConfValue("connect","pingfreq",i,pfreq,&config_f);
391 ConfValue("connect","threshold",i,thold,&config_f);
392 ConfValue("connect","sendq",i,sqmax,&config_f);
393 ConfValue("connect","recvq",i,rqmax,&config_f);
396 strlcpy(c.host,Value,MAXBUF);
398 strlcpy(Value,"",MAXBUF);
399 ConfValue("connect","password",i,Value,&config_f);
400 strlcpy(c.pass,Value,MAXBUF);
401 c.registration_timeout = 90; // default is 2 minutes
403 c.flood = atoi(flood);
405 c.sendqmax = 262144; // 256k
406 c.recvqmax = 4096; // 4k
409 c.threshold = atoi(thold);
413 c.sendqmax = atoi(sqmax);
417 c.recvqmax = atoi(rqmax);
421 c.registration_timeout = atoi(timeout);
425 c.pingtime = atoi(pfreq);
427 Classes.push_back(c);
428 log(DEBUG,"Read connect class type ALLOW, host=%s password=%s timeout=%lu flood=%lu",c.host,c.pass,(unsigned long)c.registration_timeout,(unsigned long)c.flood);
432 ConfValue("connect","deny",i,Value,&config_f);
433 strlcpy(c.host,Value,MAXBUF);
435 Classes.push_back(c);
436 log(DEBUG,"Read connect class type DENY, host=%s",c.host);
440 log(DEFAULT,"Reading K lines,Q lines and Z lines from config...");
441 read_xline_defaults();
442 log(DEFAULT,"Applying K lines, Q lines and Z lines...");
446 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
448 char Link_ServerName[MAXBUF],Link_AConn[MAXBUF];
449 ConfValue("link","name",i,Link_ServerName,&config_f);
450 ConfValue("link","autoconnect",i,Link_AConn,&config_f);
451 if (strcmp(Link_AConn,""))
453 autoconns[std::string(Link_ServerName)] = atoi(Link_AConn) + time(NULL);
458 log(DEFAULT,"Done reading configuration file, InspIRCd is now starting.");
461 log(DEFAULT,"Adding and removing modules due to rehash...");
463 std::vector<std::string> old_module_names, new_module_names, added_modules, removed_modules;
465 // store the old module names
466 for (std::vector<std::string>::iterator t = module_names.begin(); t != module_names.end(); t++)
468 old_module_names.push_back(*t);
471 // get the new module names
472 for (int count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
474 ConfValue("module","name",count2,Value,&config_f);
475 new_module_names.push_back(Value);
478 // now create a list of new modules that are due to be loaded
479 // and a seperate list of modules which are due to be unloaded
480 for (std::vector<std::string>::iterator _new = new_module_names.begin(); _new != new_module_names.end(); _new++)
483 for (std::vector<std::string>::iterator old = old_module_names.begin(); old != old_module_names.end(); old++)
489 added_modules.push_back(*_new);
491 for (std::vector<std::string>::iterator oldm = old_module_names.begin(); oldm != old_module_names.end(); oldm++)
494 for (std::vector<std::string>::iterator newm = new_module_names.begin(); newm != new_module_names.end(); newm++)
500 removed_modules.push_back(*oldm);
502 // now we have added_modules, a vector of modules to be loaded, and removed_modules, a vector of modules
504 int rem = 0, add = 0;
505 if (!removed_modules.empty())
506 for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
508 if (UnloadModule(removing->c_str()))
510 WriteOpers("*** REHASH UNLOADED MODULE: %s",removing->c_str());
511 WriteServ(user->fd,"973 %s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str());
516 WriteServ(user->fd,"972 %s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ModuleError());
519 if (!added_modules.empty())
520 for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
522 if (LoadModule(adding->c_str()))
524 WriteOpers("*** REHASH LOADED MODULE: %s",adding->c_str());
525 WriteServ(user->fd,"975 %s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str());
530 WriteServ(user->fd,"974 %s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ModuleError());
533 log(DEFAULT,"Successfully unloaded %lu of %lu modules and loaded %lu of %lu modules.",(unsigned long)rem,(unsigned long)removed_modules.size(),(unsigned long)add,(unsigned long)added_modules.size());
538 /* add a channel to a user, creating the record for it if needed and linking
539 * it to the user record */
541 chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
543 if ((!user) || (!cn))
545 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
553 strncpy(cname,cn,MAXBUF);
555 // we MUST declare this wherever we use FOREACH_RESULT
558 if (strlen(cname) > CHANMAX)
560 cname[CHANMAX] = '\0';
563 log(DEBUG,"add_channel: %s %s",user->nick,cname);
565 if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
567 return NULL; // already on the channel!
571 if (!FindChan(cname))
573 if (!strcasecmp(ServerName,user->server))
576 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
577 if (MOD_RESULT == 1) {
582 /* create a new one */
583 log(DEBUG,"add_channel: creating: %s",cname);
585 chanlist[cname] = new chanrec();
587 strlcpy(chanlist[cname]->name, cname,CHANMAX);
588 chanlist[cname]->binarymodes = CM_TOPICLOCK | CM_NOEXTERNAL;
589 chanlist[cname]->created = TIME;
590 strcpy(chanlist[cname]->topic, "");
591 strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
592 chanlist[cname]->topicset = 0;
593 Ptr = chanlist[cname];
594 log(DEBUG,"add_channel: created: %s",cname);
595 /* set created to 2 to indicate user
596 * is the first in the channel
597 * and should be given ops */
603 /* channel exists, just fish out a pointer to its struct */
604 Ptr = FindChan(cname);
607 log(DEBUG,"add_channel: joining to: %s",Ptr->name);
609 // remote users are allowed us to bypass channel modes
610 // and bans (used by servers)
611 if (!strcasecmp(ServerName,user->server))
613 log(DEBUG,"Not overriding...");
615 FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
616 if (MOD_RESULT == 1) {
619 log(DEBUG,"MOD_RESULT=%d",MOD_RESULT);
623 log(DEBUG,"add_channel: checking key, invite, etc");
625 FOREACH_RESULT(OnCheckKey(user, Ptr, key ? key : ""));
630 log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
633 log(DEBUG,"add_channel: no key given in JOIN");
634 WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
639 if (strcasecmp(key,Ptr->key))
641 log(DEBUG,"add_channel: bad key given in JOIN");
642 WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
647 log(DEBUG,"add_channel: no key");
650 FOREACH_RESULT(OnCheckInvite(user, Ptr));
653 if (Ptr->binarymodes & CM_INVITEONLY)
655 log(DEBUG,"add_channel: channel is +i");
656 if (user->IsInvited(Ptr->name))
658 /* user was invited to channel */
659 /* there may be an optional channel NOTICE here */
663 WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
667 log(DEBUG,"add_channel: channel is not +i");
670 FOREACH_RESULT(OnCheckLimit(user, Ptr));
675 if (usercount(Ptr) >= Ptr->limit)
677 WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
682 log(DEBUG,"add_channel: about to walk banlist");
684 FOREACH_RESULT(OnCheckBan(user, Ptr));
687 /* check user against the channel banlist */
690 if (Ptr->bans.size())
692 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
694 if (match(user->GetFullHost(),i->data))
696 WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
702 log(DEBUG,"add_channel: bans checked");
710 user->RemoveInvite(Ptr->name);
713 log(DEBUG,"add_channel: invites removed");
718 log(DEBUG,"Overridden checks");
726 log(DEBUG,"Passed channel checks");
728 for (int index =0; index != MAXCHANS; index++)
730 log(DEBUG,"Check location %d",index);
731 if (user->chans[index].channel == NULL)
733 log(DEBUG,"Adding into their channel list at location %d",index);
737 /* first user in is given ops */
738 user->chans[index].uc_modes = UCMODE_OP;
742 user->chans[index].uc_modes = 0;
744 user->chans[index].channel = Ptr;
745 Ptr->AddUser((char*)user);
746 WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
748 log(DEBUG,"Sent JOIN to client");
752 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
753 WriteServ(user->fd,"333 %s %s %s %lu", user->nick, Ptr->name, Ptr->setby, (unsigned long)Ptr->topicset);
756 WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
757 //WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
758 //WriteServ(user->fd,"329 %s %s %lu", user->nick, Ptr->name, (unsigned long)Ptr->created);
759 FOREACH_MOD OnUserJoin(user,Ptr);
763 log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
764 WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
768 /* remove a channel from a users record, and remove the record from memory
769 * if the channel has become empty */
771 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
773 if ((!user) || (!cname))
775 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
781 if ((!cname) || (!user))
786 Ptr = FindChan(cname);
793 FOREACH_MOD OnUserPart(user,Ptr);
794 log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
796 for (int i =0; i != MAXCHANS; i++)
798 /* zap it from the channel list of the user */
799 if (user->chans[i].channel == Ptr)
803 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
807 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
809 user->chans[i].uc_modes = 0;
810 user->chans[i].channel = NULL;
811 log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
816 Ptr->DelUser((char*)user);
818 /* if there are no users left on the channel */
821 chan_hash::iterator iter = chanlist.find(Ptr->name);
823 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
825 /* kill the record */
826 if (iter != chanlist.end())
828 log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
830 chanlist.erase(iter);
838 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
840 if ((!src) || (!user) || (!Ptr) || (!reason))
842 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
846 if ((!Ptr) || (!user) || (!src))
851 log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
853 if (!has_channel(user,Ptr))
855 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
860 FOREACH_RESULT(OnAccessCheck(src,user,Ptr,AC_KICK));
861 if ((MOD_RESULT == ACR_DENY) && (!is_uline(src->server)))
864 if ((MOD_RESULT == ACR_DEFAULT) || (!is_uline(src->server)))
866 if ((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr)))
868 if (cstatus(src,Ptr) == STATUS_HOP)
870 WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
874 WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
881 if (!is_uline(src->server))
884 FOREACH_RESULT(OnUserPreKick(src,user,Ptr,reason));
889 FOREACH_MOD OnUserKick(src,user,Ptr,reason);
891 for (int i =0; i != MAXCHANS; i++)
893 /* zap it from the channel list of the user */
894 if (user->chans[i].channel)
895 if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
897 WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
898 user->chans[i].uc_modes = 0;
899 user->chans[i].channel = NULL;
900 log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
905 Ptr->DelUser((char*)user);
907 /* if there are no users left on the channel */
910 chan_hash::iterator iter = chanlist.find(Ptr->name);
912 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
914 /* kill the record */
915 if (iter != chanlist.end())
917 log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
919 chanlist.erase(iter);
927 /* This function pokes and hacks at a parameter list like the following:
929 * PART #winbot,#darkgalaxy :m00!
931 * to turn it into a series of individual calls like this:
934 * PART #darkgalaxy :m00!
936 * The seperate calls are sent to a callback function provided by the caller
937 * (the caller will usually call itself recursively). The callback function
938 * must be a command handler. Calling this function on a line with no list causes
939 * no action to be taken. You must provide a starting and ending parameter number
940 * where the range of the list can be found, useful if you have a terminating
941 * parameter as above which is actually not part of the list, or parameters
942 * before the actual list as well. This code is used by many functions which
943 * can function as "one to list" (see the RFC) */
945 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
950 char blog[32][MAXBUF];
951 char blog2[32][MAXBUF];
952 int j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
956 for (int i = 0; i <32; i++)
959 for (int i = 0; i <32; i++)
963 for (int i = 0; i <10; i++)
972 if (pcnt > 1) /* we have a key to copy */
974 strlcpy(keystr,parameters[1],MAXBUF);
978 if (!parameters[start])
982 if (!strchr(parameters[start],','))
987 for (int i = start; i <= end; i++)
991 strlcat(plist,parameters[i],MAXBUF);
999 for (int i = 0; i < t; i++)
1001 if (plist[i] == ',')
1004 strlcpy(blog[j++],param,MAXBUF);
1008 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
1013 strlcpy(blog[j++],param,MAXBUF);
1016 if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
1021 if ((joins) && (keystr))
1023 if (strchr(keystr,','))
1027 t2 = strlen(keystr);
1028 for (int i = 0; i < t2; i++)
1030 if (keystr[i] == ',')
1033 strlcpy(blog2[j++],param,MAXBUF);
1037 strlcpy(blog2[j++],param,MAXBUF);
1042 for (j = 0; j < total; j++)
1048 for (q = end; q < pcnt-1; q++)
1050 if (parameters[q+1])
1052 pars[q-end+1] = parameters[q+1];
1055 if ((joins) && (parameters[1]))
1066 /* repeatedly call the function with the hacked parameter list */
1067 if ((joins) && (pcnt > 1))
1071 // pars[1] already set up and containing key from blog2[j]
1076 pars[1] = parameters[1];
1082 fn(pars,pcnt-(end-start),u);
1091 void kill_link(userrec *user,const char* r)
1093 user_hash::iterator iter = clientlist.find(user->nick);
1095 char reason[MAXBUF];
1097 strncpy(reason,r,MAXBUF);
1099 if (strlen(reason)>MAXQUIT)
1101 reason[MAXQUIT-1] = '\0';
1104 log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
1105 Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
1106 log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
1108 if (user->registered == 7) {
1109 FOREACH_MOD OnUserQuit(user,reason);
1110 WriteCommonExcept(user,"QUIT :%s",reason);
1113 user->FlushWriteBuf();
1115 FOREACH_MOD OnUserDisconnect(user);
1119 FOREACH_MOD OnRawSocketClose(user->fd);
1120 SE->DelFd(user->fd);
1121 user->CloseSocket();
1124 // this must come before the WriteOpers so that it doesnt try to fill their buffer with anything
1125 // if they were an oper with +s.
1126 if (user->registered == 7) {
1127 purge_empty_chans(user);
1128 // fix by brain: only show local quits because we only show local connects (it just makes SENSE)
1129 if (!strcmp(user->server,ServerName))
1130 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
1134 if (iter != clientlist.end())
1136 log(DEBUG,"deleting user hash value %lu",(unsigned long)user);
1138 fd_ref_table[user->fd] = NULL;
1139 clientlist.erase(iter);
1144 void kill_link_silent(userrec *user,const char* r)
1146 user_hash::iterator iter = clientlist.find(user->nick);
1148 char reason[MAXBUF];
1150 strncpy(reason,r,MAXBUF);
1152 if (strlen(reason)>MAXQUIT)
1154 reason[MAXQUIT-1] = '\0';
1157 log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
1158 Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
1159 log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
1161 user->FlushWriteBuf();
1163 if (user->registered == 7) {
1164 FOREACH_MOD OnUserQuit(user,reason);
1165 WriteCommonExcept(user,"QUIT :%s",reason);
1168 FOREACH_MOD OnUserDisconnect(user);
1172 FOREACH_MOD OnRawSocketClose(user->fd);
1173 SE->DelFd(user->fd);
1174 user->CloseSocket();
1177 if (user->registered == 7) {
1178 purge_empty_chans(user);
1181 if (iter != clientlist.end())
1183 log(DEBUG,"deleting user hash value %lu",(unsigned long)user);
1185 fd_ref_table[user->fd] = NULL;
1186 clientlist.erase(iter);
1192 /*void *task(void *arg)
1195 cout << (char *)arg;
1201 int main(int argc, char** argv)
1205 log(DEBUG,"*** InspIRCd starting up!");
1206 if (!FileExists(CONFIG_FILE))
1208 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
1209 log(DEFAULT,"main: no config");
1210 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
1214 for (int i = 1; i < argc; i++)
1216 if (!strcmp(argv[i],"-nofork")) {
1219 if (!strcmp(argv[i],"-wait")) {
1222 if (!strcmp(argv[i],"-nolimit")) {
1228 strlcpy(MyExecutable,argv[0],MAXBUF);
1230 // initialize the lowercase mapping table
1231 for (unsigned int cn = 0; cn < 256; cn++)
1233 // lowercase the uppercase chars
1234 for (unsigned int cn = 65; cn < 91; cn++)
1235 lowermap[cn] = tolower(cn);
1236 // now replace the specific chars for scandanavian comparison
1237 lowermap[(unsigned)'['] = '{';
1238 lowermap[(unsigned)']'] = '}';
1239 lowermap[(unsigned)'\\'] = '|';
1241 if (InspIRCd(argv,argc) == ERROR)
1243 log(DEFAULT,"main: daemon function bailed");
1244 printf("ERROR: could not initialise. Shutting down.\n");
1251 template<typename T> inline string ConvToStr(const T &in)
1254 if (!(tmp << in)) return string();
1258 /* re-allocates a nick in the user_hash after they change nicknames,
1259 * returns a pointer to the new user as it may have moved */
1261 userrec* ReHashNick(char* Old, char* New)
1263 //user_hash::iterator newnick;
1264 user_hash::iterator oldnick = clientlist.find(Old);
1266 log(DEBUG,"ReHashNick: %s %s",Old,New);
1268 if (!strcasecmp(Old,New))
1270 log(DEBUG,"old nick is new nick, skipping");
1271 return oldnick->second;
1274 if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
1276 log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
1278 userrec* olduser = oldnick->second;
1279 clientlist[New] = olduser;
1280 clientlist.erase(oldnick);
1282 log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
1284 return clientlist[New];
1287 /* adds or updates an entry in the whowas list */
1288 void AddWhoWas(userrec* u)
1290 whowas_hash::iterator iter = whowas.find(u->nick);
1291 WhoWasUser *a = new WhoWasUser();
1292 strlcpy(a->nick,u->nick,NICKMAX);
1293 strlcpy(a->ident,u->ident,IDENTMAX);
1294 strlcpy(a->dhost,u->dhost,160);
1295 strlcpy(a->host,u->host,160);
1296 strlcpy(a->fullname,u->fullname,MAXGECOS);
1297 strlcpy(a->server,u->server,256);
1298 a->signon = u->signon;
1300 /* MAX_WHOWAS: max number of /WHOWAS items
1301 * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
1302 * can be replaced by a newer one
1305 if (iter == whowas.end())
1307 if (whowas.size() >= (unsigned)WHOWAS_MAX)
1309 for (whowas_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
1311 // 3600 seconds in an hour ;)
1312 if ((i->second->signon)<(TIME-(WHOWAS_STALE*3600)))
1314 // delete the old one
1315 if (i->second) delete i->second;
1316 // replace with new one
1318 log(DEBUG,"added WHOWAS entry, purged an old record");
1322 // no space left and user doesnt exist. Don't leave ram in use!
1323 log(DEBUG,"Not able to update whowas (list at WHOWAS_MAX entries and trying to add new?), freeing excess ram");
1328 log(DEBUG,"added fresh WHOWAS entry");
1329 whowas[a->nick] = a;
1334 log(DEBUG,"updated WHOWAS entry");
1335 if (iter->second) delete iter->second;
1341 void* dns_task(void* arg)
1343 userrec* u = (userrec*)arg;
1344 log(DEBUG,"DNS thread for user %s",u->nick);
1349 if (dns1.ReverseLookup(u->ip))
1351 log(DEBUG,"DNS Step 1");
1352 while (!dns1.HasResult())
1356 host = dns1.GetResult();
1359 log(DEBUG,"DNS Step 2: '%s'",host.c_str());
1360 if (dns2.ForwardLookup(host))
1362 while (!dns2.HasResult())
1366 ip = dns2.GetResultIP();
1367 log(DEBUG,"DNS Step 3 '%s'(%d) '%s'(%d)",ip.c_str(),ip.length(),u->ip,strlen(u->ip));
1368 if (ip == std::string(u->ip))
1370 log(DEBUG,"DNS Step 4");
1371 if (host.length() < 160)
1373 log(DEBUG,"DNS Step 5");
1374 strcpy(u->host,host.c_str());
1375 strcpy(u->dhost,host.c_str());
1386 /* add a client connection to the sockets list */
1387 void AddClient(int socket, char* host, int port, bool iscached, char* ip)
1391 user_hash::iterator iter;
1393 tempnick = ConvToStr(socket) + "-unknown";
1394 sprintf(tn2,"%lu-unknown",(unsigned long)socket);
1396 iter = clientlist.find(tempnick);
1399 // as these nicknames are 'RFC impossible', we can be sure nobody is going to be
1400 // using one as a registered connection. As theyre per fd, we can also safely assume
1401 // that we wont have collisions. Therefore, if the nick exists in the list, its only
1402 // used by a dead socket, erase the iterator so that the new client may reclaim it.
1403 // this was probably the cause of 'server ignores me when i hammer it with reconnects'
1404 // issue in earlier alphas/betas
1405 if (iter != clientlist.end())
1407 userrec* goner = iter->second;
1409 clientlist.erase(iter);
1413 * It is OK to access the value here this way since we know
1414 * it exists, we just created it above.
1416 * At NO other time should you access a value in a map or a
1417 * hash_map this way.
1419 clientlist[tempnick] = new userrec();
1421 NonBlocking(socket);
1422 log(DEBUG,"AddClient: %lu %s %d %s",(unsigned long)socket,host,port,ip);
1424 clientlist[tempnick]->fd = socket;
1425 strlcpy(clientlist[tempnick]->nick, tn2,NICKMAX);
1426 strlcpy(clientlist[tempnick]->host, host,160);
1427 strlcpy(clientlist[tempnick]->dhost, host,160);
1428 clientlist[tempnick]->server = (char*)FindServerNamePtr(ServerName);
1429 strlcpy(clientlist[tempnick]->ident, "unknown",IDENTMAX);
1430 clientlist[tempnick]->registered = 0;
1431 clientlist[tempnick]->signon = TIME+dns_timeout;
1432 clientlist[tempnick]->lastping = 1;
1433 clientlist[tempnick]->port = port;
1434 strlcpy(clientlist[tempnick]->ip,ip,16);
1436 // set the registration timeout for this user
1437 unsigned long class_regtimeout = 90;
1438 int class_flood = 0;
1439 long class_threshold = 5;
1440 long class_sqmax = 262144; // 256kb
1441 long class_rqmax = 4096; // 4k
1443 for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
1445 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
1447 class_regtimeout = (unsigned long)i->registration_timeout;
1448 class_flood = i->flood;
1449 clientlist[tempnick]->pingmax = i->pingtime;
1450 class_threshold = i->threshold;
1451 class_sqmax = i->sendqmax;
1452 class_rqmax = i->recvqmax;
1457 clientlist[tempnick]->nping = TIME+clientlist[tempnick]->pingmax+dns_timeout;
1458 clientlist[tempnick]->timeout = TIME+class_regtimeout;
1459 clientlist[tempnick]->flood = class_flood;
1460 clientlist[tempnick]->threshold = class_threshold;
1461 clientlist[tempnick]->sendqmax = class_sqmax;
1462 clientlist[tempnick]->recvqmax = class_rqmax;
1464 for (int i = 0; i < MAXCHANS; i++)
1466 clientlist[tempnick]->chans[i].channel = NULL;
1467 clientlist[tempnick]->chans[i].uc_modes = 0;
1470 if (clientlist.size() > SoftLimit)
1472 kill_link(clientlist[tempnick],"No more connections allowed");
1476 if (clientlist.size() >= MAXCLIENTS)
1478 kill_link(clientlist[tempnick],"No more connections allowed");
1482 // this is done as a safety check to keep the file descriptors within range of fd_ref_table.
1483 // its a pretty big but for the moment valid assumption:
1484 // file descriptors are handed out starting at 0, and are recycled as theyre freed.
1485 // therefore if there is ever an fd over 65535, 65536 clients must be connected to the
1486 // irc server at once (or the irc server otherwise initiating this many connections, files etc)
1487 // which for the time being is a physical impossibility (even the largest networks dont have more
1488 // than about 10,000 users on ONE server!)
1489 if ((unsigned)socket > 65534)
1491 kill_link(clientlist[tempnick],"Server is full");
1496 char* e = matches_exception(ip);
1499 char* r = matches_zline(ip);
1502 char reason[MAXBUF];
1503 snprintf(reason,MAXBUF,"Z-Lined: %s",r);
1504 kill_link(clientlist[tempnick],reason);
1508 fd_ref_table[socket] = clientlist[tempnick];
1509 SE->AddFd(socket,true,X_ESTAB_CLIENT);
1511 // initialize their dns lookup thread
1512 //if (pthread_create(&clientlist[tempnick]->dnsthread, NULL, dns_task, (void *)clientlist[tempnick]) != 0)
1514 // log(DEBUG,"Failed to create DNS lookup thread for user %s",clientlist[tempnick]->nick);
1518 /* shows the message of the day, and any other on-logon stuff */
1519 void FullConnectUser(userrec* user)
1522 user->idle_lastmsg = TIME;
1523 log(DEBUG,"ConnectUser: %s",user->nick);
1525 if ((strcmp(Passwd(user),"")) && (!user->haspassed))
1527 kill_link(user,"Invalid password");
1532 kill_link(user,"Unauthorised connection");
1536 char match_against[MAXBUF];
1537 snprintf(match_against,MAXBUF,"%s@%s",user->ident,user->host);
1538 char* e = matches_exception(match_against);
1541 char* r = matches_gline(match_against);
1544 char reason[MAXBUF];
1545 snprintf(reason,MAXBUF,"G-Lined: %s",r);
1546 kill_link_silent(user,reason);
1549 r = matches_kline(user->host);
1552 char reason[MAXBUF];
1553 snprintf(reason,MAXBUF,"K-Lined: %s",r);
1554 kill_link_silent(user,reason);
1560 WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
1561 WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
1562 WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
1563 WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
1564 WriteServ(user->fd,"004 %s %s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
1565 // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
1566 std::stringstream v;
1567 v << "WALLCHOPS MODES=13 CHANTYPES=# PREFIX=(ohv)@%+ MAP SAFELIST MAXCHANNELS=" << MAXCHANS;
1568 v << " MAXBANS=60 NICKLEN=" << NICKMAX;
1569 v << " TOPICLEN=" << MAXTOPIC << " KICKLEN=" << MAXKICK << " MAXTARGETS=20 AWAYLEN=" << MAXAWAY << " CHANMODES=ohvb,k,l,psmnti NETWORK=";
1571 std::string data005 = v.str();
1572 FOREACH_MOD On005Numeric(data005);
1573 // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
1574 // so i'd better split it :)
1575 std::stringstream out(data005);
1576 std::string token = "";
1577 std::string line5 = "";
1578 int token_counter = 0;
1582 line5 = line5 + token + " ";
1584 if ((token_counter >= 13) || (out.eof() == true))
1586 WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
1593 // fix 3 by brain, move registered = 7 below these so that spurious modes and host changes dont go out
1594 // onto the network and produce 'fake direction'
1595 FOREACH_MOD OnUserConnect(user);
1596 FOREACH_MOD OnGlobalConnect(user);
1597 user->registered = 7;
1598 WriteOpers("*** Client connecting on port %lu: %s!%s@%s [%s]",(unsigned long)user->port,user->nick,user->ident,user->host,user->ip);
1602 /* shows the message of the day, and any other on-logon stuff */
1603 void ConnectUser(userrec *user)
1605 // dns is already done, things are fast. no need to wait for dns to complete just pass them straight on
1606 if ((user->dns_done) && (user->registered >= 3) && (AllModulesReportReady(user)))
1608 FullConnectUser(user);
1612 std::string GetVersionString()
1614 char Revision[] = "$Revision$";
1615 char versiondata[MAXBUF];
1616 char *s1 = Revision;
1618 char *v2 = strtok_r(s1," ",&savept);
1620 v2 = strtok_r(s1," ",&savept);
1623 char dnsengine[] = "multithread";
1625 char dnsengine[] = "singlethread";
1627 snprintf(versiondata,MAXBUF,"%s Rev. %s %s :%s [FLAGS=%lu,%s,%s]",VERSION,v2,ServerName,SYSTEM,(unsigned long)OPTIMISATION,SE->GetName().c_str(),dnsengine);
1631 void handle_version(char **parameters, int pcnt, userrec *user)
1633 WriteServ(user->fd,"351 %s :%s",user->nick,GetVersionString().c_str());
1637 bool is_valid_cmd(const char* commandname, int pcnt, userrec * user)
1639 for (unsigned int i = 0; i < cmdlist.size(); i++)
1641 if (!strcasecmp(cmdlist[i].command,commandname))
1643 if (cmdlist[i].handler_function)
1645 if ((pcnt>=cmdlist[i].min_params) && (strcasecmp(cmdlist[i].source,"<core>")))
1647 if ((strchr(user->modes,cmdlist[i].flags_needed)) || (!cmdlist[i].flags_needed))
1649 if (cmdlist[i].flags_needed)
1651 if ((user->HasPermission((char*)commandname)) || (is_uline(user->server)))
1669 // calls a handler function for a command
1671 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
1673 for (unsigned int i = 0; i < cmdlist.size(); i++)
1675 if (!strcasecmp(cmdlist[i].command,commandname))
1677 if (cmdlist[i].handler_function)
1679 if (pcnt>=cmdlist[i].min_params)
1681 if ((strchr(user->modes,cmdlist[i].flags_needed)) || (!cmdlist[i].flags_needed))
1683 if (cmdlist[i].flags_needed)
1685 if ((user->HasPermission((char*)commandname)) || (is_uline(user->server)))
1687 cmdlist[i].handler_function(parameters,pcnt,user);
1692 cmdlist[i].handler_function(parameters,pcnt,user);
1702 void force_nickchange(userrec* user,const char* newnick)
1709 FOREACH_RESULT(OnUserPreNick(user,newnick));
1712 kill_link(user,"Nickname collision");
1715 if (matches_qline(newnick))
1718 kill_link(user,"Nickname collision");
1726 strncpy(nick,newnick,MAXBUF);
1728 if (user->registered == 7)
1732 handle_nick(pars,1,user);
1738 int process_parameters(char **command_p,char *parameters)
1741 int q = strlen(parameters);
1744 /* no parameters, command_p invalid! */
1747 if (parameters[0] == ':')
1749 command_p[0] = parameters+1;
1754 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
1756 /* only one parameter */
1757 command_p[0] = parameters;
1758 if (parameters[0] == ':')
1760 if (strchr(parameters,' ') != NULL)
1768 command_p[j++] = parameters;
1769 for (int i = 0; i <= q; i++)
1771 if (parameters[i] == ' ')
1773 command_p[j++] = parameters+i+1;
1774 parameters[i] = '\0';
1775 if (command_p[j-1][0] == ':')
1777 *command_p[j-1]++; /* remove dodgy ":" */
1779 /* parameter like this marks end of the sequence */
1783 return j; /* returns total number of items in the list */
1786 void process_command(userrec *user, char* cmd)
1790 char *command_p[127];
1791 char p[MAXBUF], temp[MAXBUF];
1792 int j, items, cmd_found;
1794 for (int i = 0; i < 127; i++)
1795 command_p[i] = NULL;
1810 int total_params = 0;
1813 for (unsigned int q = 0; q < strlen(cmd)-1; q++)
1815 if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
1818 // found a 'trailing', we dont count them after this.
1826 // another phidjit bug...
1827 if (total_params > 126)
1829 *(strchr(cmd,' ')) = '\0';
1830 WriteServ(user->fd,"421 %s %s :Too many parameters given",user->nick,cmd);
1834 strlcpy(temp,cmd,MAXBUF);
1836 std::string tmp = cmd;
1837 for (int i = 0; i <= MODCOUNT; i++)
1839 std::string oldtmp = tmp;
1840 modules[i]->OnServerRaw(tmp,true,user);
1843 log(DEBUG,"A Module changed the input string!");
1844 log(DEBUG,"New string: %s",tmp.c_str());
1845 log(DEBUG,"Old string: %s",oldtmp.c_str());
1849 strlcpy(cmd,tmp.c_str(),MAXBUF);
1850 strlcpy(temp,cmd,MAXBUF);
1852 if (!strchr(cmd,' '))
1854 /* no parameters, lets skip the formalities and not chop up
1856 log(DEBUG,"About to preprocess command with no params");
1858 command_p[0] = NULL;
1860 for (unsigned int i = 0; i <= strlen(cmd); i++)
1862 cmd[i] = toupper(cmd[i]);
1870 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
1871 for (unsigned int i = 0; i < strlen(temp); i++)
1873 if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
1879 /* split the full string into a command plus parameters */
1883 if (strchr(cmd,' '))
1885 for (unsigned int i = 0; i <= strlen(cmd); i++)
1887 /* capitalise the command ONLY, leave params intact */
1888 cmd[i] = toupper(cmd[i]);
1889 /* are we nearly there yet?! :P */
1893 parameters = cmd+i+1;
1901 for (unsigned int i = 0; i <= strlen(cmd); i++)
1903 cmd[i] = toupper(cmd[i]);
1910 if (strlen(command)>MAXCOMMAND)
1912 WriteServ(user->fd,"421 %s %s :Command too long",user->nick,command);
1916 for (unsigned int x = 0; x < strlen(command); x++)
1918 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
1920 if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
1922 if (strchr("@!\"$%^&*(){}[]_=+;:'#~,<>/?\\|`",command[x]))
1925 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
1932 for (unsigned int i = 0; i != cmdlist.size(); i++)
1934 if (cmdlist[i].command[0])
1936 if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
1942 items = process_parameters(command_p,parameters);
1947 command_p[0] = NULL;
1953 command_p[0] = NULL;
1958 /* activity resets the ping pending timer */
1959 user->nping = TIME + user->pingmax;
1960 if ((items) < cmdlist[i].min_params)
1962 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
1963 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
1966 if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
1968 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
1969 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
1973 if ((cmdlist[i].flags_needed) && (!user->HasPermission(command)))
1975 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
1976 WriteServ(user->fd,"481 %s :Permission Denied- Oper type %s does not have access to command %s",user->nick,user->oper,command);
1980 /* if the command isnt USER, PASS, or NICK, and nick is empty,
1982 if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
1984 if ((!isnick(user->nick)) || (user->registered != 7))
1986 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
1987 WriteServ(user->fd,"451 %s :You have not registered",command);
1991 if ((user->registered == 7) && (!strchr(user->modes,'o')))
1993 std::stringstream dcmds(DisabledCommands);
1994 while (!dcmds.eof())
1996 std::string thiscmd;
1998 if (!strcasecmp(thiscmd.c_str(),command))
2000 // command is disabled!
2001 WriteServ(user->fd,"421 %s %s :This command has been disabled.",user->nick,command);
2006 if ((user->registered == 7) || (!strncmp(command,"USER",4)) || (!strncmp(command,"NICK",4)) || (!strncmp(command,"PASS",4)))
2008 if (cmdlist[i].handler_function)
2011 /* ikky /stats counters */
2014 cmdlist[i].use_count++;
2015 cmdlist[i].total_bytes+=strlen(temp);
2019 FOREACH_RESULT(OnPreCommand(command,command_p,items,user));
2020 if (MOD_RESULT == 1) {
2024 /* WARNING: nothing may come after the
2025 * command handler call, as the handler
2026 * may free the user structure! */
2028 cmdlist[i].handler_function(command_p,items,user);
2034 WriteServ(user->fd,"451 %s :You have not registered",command);
2042 if ((!cmd_found) && (user))
2045 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
2049 bool removecommands(const char* source)
2051 bool go_again = true;
2055 for (std::deque<command_t>::iterator i = cmdlist.begin(); i != cmdlist.end(); i++)
2057 if (!strcmp(i->source,source))
2059 log(DEBUG,"removecommands(%s) Removing dependent command: %s",i->source,i->command);
2070 void process_buffer(const char* cmdbuf,userrec *user)
2074 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
2080 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
2087 while (*cmdbuf == ' ') cmdbuf++; // strip leading spaces
2089 strlcpy(cmd,cmdbuf,MAXBUF);
2094 int sl = strlen(cmd)-1;
2095 if ((cmd[sl] == 13) || (cmd[sl] == 10))
2100 if ((cmd[sl] == 13) || (cmd[sl] == 10))
2105 while (cmd[sl] == ' ') // strip trailing spaces
2115 log(DEBUG,"CMDIN: %s %s",user->nick,cmd);
2117 if ((user) && (cmd))
2119 process_command(user,cmd);
2123 char MODERR[MAXBUF];
2130 void erase_factory(int j)
2133 for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
2138 factory.push_back(NULL);
2145 void erase_module(int j)
2148 for (std::vector<Module*>::iterator m = modules.begin(); m!= modules.end(); m++)
2154 modules.push_back(NULL);
2160 for (std::vector<std::string>::iterator v = module_names.begin(); v != module_names.end(); v++)
2164 module_names.erase(v);
2172 bool UnloadModule(const char* filename)
2174 std::string filename_str = filename;
2175 for (unsigned int j = 0; j != module_names.size(); j++)
2177 if (module_names[j] == filename_str)
2179 if (modules[j]->GetVersion().Flags & VF_STATIC)
2181 log(DEFAULT,"Failed to unload STATIC module %s",filename);
2182 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
2185 /* Give the module a chance to tidy out all its metadata */
2186 for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
2188 modules[j]->OnCleanup(TYPE_CHANNEL,c->second);
2190 for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
2192 modules[j]->OnCleanup(TYPE_USER,u->second);
2194 FOREACH_MOD OnUnloadModule(modules[j],module_names[j]);
2196 log(DEBUG,"Deleting module...");
2198 log(DEBUG,"Erasing module entry...");
2200 log(DEBUG,"Removing dependent commands...");
2201 removecommands(filename);
2202 log(DEFAULT,"Module %s unloaded",filename);
2207 log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
2208 snprintf(MODERR,MAXBUF,"Module not loaded");
2212 bool LoadModule(const char* filename)
2214 char modfile[MAXBUF];
2216 snprintf(modfile,MAXBUF,"%s",filename);
2218 snprintf(modfile,MAXBUF,"%s/%s",ModPath,filename);
2220 std::string filename_str = filename;
2222 if (!DirValid(modfile))
2224 log(DEFAULT,"Module %s is not within the modules directory.",modfile);
2225 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
2229 log(DEBUG,"Loading module: %s",modfile);
2231 if (FileExists(modfile))
2234 for (unsigned int j = 0; j < module_names.size(); j++)
2236 if (module_names[j] == filename_str)
2238 log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
2239 snprintf(MODERR,MAXBUF,"Module already loaded");
2243 ircd_module* a = new ircd_module(modfile);
2244 factory[MODCOUNT+1] = a;
2245 if (factory[MODCOUNT+1]->LastError())
2247 log(DEFAULT,"Unable to load %s: %s",modfile,factory[MODCOUNT+1]->LastError());
2248 snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[MODCOUNT+1]->LastError());
2252 if (factory[MODCOUNT+1]->factory)
2254 Module* m = factory[MODCOUNT+1]->factory->CreateModule(MyServer);
2255 modules[MODCOUNT+1] = m;
2256 /* save the module and the module's classfactory, if
2257 * this isnt done, random crashes can occur :/ */
2258 module_names.push_back(filename);
2262 log(DEFAULT,"Unable to load %s",modfile);
2263 snprintf(MODERR,MAXBUF,"Factory function failed!");
2270 log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
2271 snprintf(MODERR,MAXBUF,"Module file could not be found");
2276 FOREACH_MOD OnLoadModule(modules[MODCOUNT],filename_str);
2281 void ProcessUser(userrec* cu)
2283 int result = EAGAIN;
2284 log(DEBUG,"Processing user with fd %d",cu->fd);
2287 FOREACH_RESULT(OnRawSocketRead(cu->fd,data,65535,result2));
2290 result = cu->ReadData(data, 65535);
2294 log(DEBUG,"Data result returned by module: %d",MOD_RESULT);
2297 log(DEBUG,"Read result: %d",result);
2300 statsRecv += result;
2301 // perform a check on the raw buffer as an array (not a string!) to remove
2302 // characters 0 and 7 which are illegal in the RFC - replace them with spaces.
2303 // hopefully this should stop even more people whining about "Unknown command: *"
2304 for (int checker = 0; checker < result; checker++)
2306 if ((data[checker] == 0) || (data[checker] == 7))
2307 data[checker] = ' ';
2310 data[result] = '\0';
2311 userrec* current = cu;
2312 int currfd = current->fd;
2314 // add the data to the users buffer
2317 if (!current->AddBuffer(data))
2319 // AddBuffer returned false, theres too much data in the user's buffer and theyre up to no good.
2320 if (current->registered == 7)
2322 kill_link(current,"RecvQ exceeded");
2326 WriteOpers("*** Excess flood from %s",current->ip);
2327 log(DEFAULT,"Excess flood from: %s",current->ip);
2328 add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
2333 if (current->recvq.length() > (unsigned)NetBufferSize)
2335 if (current->registered == 7)
2337 kill_link(current,"RecvQ exceeded");
2341 WriteOpers("*** Excess flood from %s",current->ip);
2342 log(DEFAULT,"Excess flood from: %s",current->ip);
2343 add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
2348 // while there are complete lines to process...
2349 while (current->BufferIsReady())
2352 if (TIME > current->reset_due)
2354 current->reset_due = TIME + current->threshold;
2355 current->lines_in = 0;
2357 current->lines_in++;
2358 if (current->lines_in > current->flood)
2360 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
2361 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
2362 kill_link(current,"Excess flood");
2365 if ((floodlines > current->flood) && (current->flood != 0))
2367 if (current->registered == 7)
2369 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
2370 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
2371 kill_link(current,"Excess flood");
2375 add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
2380 char sanitized[MAXBUF];
2381 // use GetBuffer to copy single lines into the sanitized string
2382 std::string single_line = current->GetBuffer();
2383 current->bytes_in += single_line.length();
2385 if (single_line.length()>512)
2387 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
2388 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
2389 kill_link(current,"Excess flood");
2392 strlcpy(sanitized,single_line.c_str(),MAXBUF);
2395 userrec* old_comp = fd_ref_table[currfd];
2396 // we're gonna re-scan to check if the nick is gone, after every
2397 // command - if it has, we're gonna bail
2398 process_buffer(sanitized,current);
2399 // look for the user's record in case it's changed... if theyve quit,
2400 // we cant do anything more with their buffer, so bail.
2401 // there used to be an ugly, slow loop here. Now we have a reference
2402 // table, life is much easier (and FASTER)
2403 userrec* new_comp = fd_ref_table[currfd];
2404 if ((currfd < 0) || (!fd_ref_table[currfd]) || (old_comp != new_comp))
2410 if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
2412 log(DEBUG,"killing: %s",cu->nick);
2413 kill_link(cu,strerror(errno));
2417 // result EAGAIN means nothing read
2418 else if (result == EAGAIN)
2421 else if (result == 0)
2423 log(DEBUG,"InspIRCd: Exited: %s",cu->nick);
2424 kill_link(cu,"Client exited");
2425 log(DEBUG,"Bailing from client exit");
2430 bool DoBackgroundUserStuff(time_t TIME)
2432 unsigned int numsockets = module_sockets.size();
2433 for (std::vector<InspSocket*>::iterator a = module_sockets.begin(); a < module_sockets.end(); a++)
2435 InspSocket* s = (InspSocket*)*a;
2436 if (s->Timeout(TIME))
2438 log(DEBUG,"Socket poll returned false, close and bail");
2439 SE->DelFd(s->GetFd());
2441 module_sockets.erase(a);
2445 if (module_sockets.size() != numsockets) break;
2447 for (user_hash::iterator count2 = clientlist.begin(); count2 != clientlist.end(); count2++)
2449 userrec* curr = NULL;
2451 curr = count2->second;
2452 if ((long)curr == -1)
2455 if ((curr) && (curr->fd != 0))
2457 int currfd = curr->fd;
2458 // we don't check the state of remote users.
2459 if ((currfd != -1) && (currfd != FD_MAGIC_NUMBER))
2461 curr->FlushWriteBuf();
2462 if (curr->GetWriteError() != "")
2464 log(DEBUG,"InspIRCd: write error: %s",curr->GetWriteError().c_str());
2465 kill_link(curr,curr->GetWriteError().c_str());
2468 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
2469 // their connection class.
2470 if (((unsigned)TIME > (unsigned)curr->timeout) && (curr->registered != 7))
2472 log(DEBUG,"InspIRCd: registration timeout: %s",curr->nick);
2473 kill_link(curr,"Registration timeout");
2476 if ((TIME > curr->signon) && (curr->registered == 3) && (AllModulesReportReady(curr)))
2478 log(DEBUG,"signon exceed, registered=3, and modules ready, OK: %d %d",TIME,curr->signon);
2479 curr->dns_done = true;
2481 FullConnectUser(curr);
2482 if (fd_ref_table[currfd] != curr) // something changed, bail pronto
2485 if ((curr->dns_done) && (curr->registered == 3) && (AllModulesReportReady(curr)))
2487 log(DEBUG,"dns done, registered=3, and modules ready, OK");
2488 FullConnectUser(curr);
2489 if (fd_ref_table[currfd] != curr) // something changed, bail pronto
2492 if ((TIME > curr->nping) && (isnick(curr->nick)) && (curr->registered == 7))
2494 if ((!curr->lastping) && (curr->registered == 7))
2496 log(DEBUG,"InspIRCd: ping timeout: %s",curr->nick);
2497 kill_link(curr,"Ping timeout");
2500 Write(curr->fd,"PING :%s",ServerName);
2501 log(DEBUG,"InspIRCd: pinging: %s",curr->nick);
2503 curr->nping = TIME+curr->pingmax; // was hard coded to 120
2511 void OpenLog(char** argv, int argc)
2513 std::string logpath = GetFullProgDir(argv,argc) + "/ircd.log";
2514 log_file = fopen(logpath.c_str(),"a+");
2517 printf("ERROR: Could not write to logfile %s, bailing!\n\n",logpath.c_str());
2521 printf("Logging to ircd.log...\n");
2523 printf("Logging to %s...\n",logpath.c_str());
2532 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
2533 log(DEFAULT,"InspIRCd: startup: not starting with UID 0!");
2541 int clientportcount = 0;
2542 for (int count = 0; count < ConfValueEnum("bind",&config_f); count++)
2544 ConfValue("bind","port",count,configToken,&config_f);
2545 ConfValue("bind","address",count,Addr,&config_f);
2546 ConfValue("bind","type",count,Type,&config_f);
2547 if (strcmp(Type,"servers"))
2549 // modules handle server bind types now,
2550 // its not a typo in the strcmp.
2551 ports[clientportcount] = atoi(configToken);
2552 strlcpy(addrs[clientportcount],Addr,256);
2554 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
2557 portCount = clientportcount;
2559 for (int count = 0; count < portCount; count++)
2561 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
2563 log(DEBUG,"InspIRCd: startup: bad fd %lu",(unsigned long)openSockfd[boundPortCount]);
2566 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
2568 log(DEFAULT,"InspIRCd: startup: failed to bind port %lu",(unsigned long)ports[count]);
2570 else /* well we at least bound to one socket so we'll continue */
2576 /* if we didn't bind to anything then abort */
2577 if (!boundPortCount)
2579 log(DEFAULT,"InspIRCd: startup: no ports bound, bailing!");
2580 printf("\nERROR: Was not able to bind any of %lu ports! Please check your configuration.\n\n", (unsigned long)portCount);
2584 return boundPortCount;
2591 printf("WARNING: %s\n\n",DieValue);
2592 log(DEFAULT,"Ut-Oh, somebody didn't read their config file: '%s'",DieValue);
2597 void LoadAllModules()
2599 /* We must load the modules AFTER initializing the socket engine, now */
2601 for (int count = 0; count < ConfValueEnum("module",&config_f); count++)
2603 ConfValue("module","name",count,configToken,&config_f);
2604 printf("Loading module... \033[1;32m%s\033[0m\n",configToken);
2605 if (!LoadModule(configToken))
2607 log(DEFAULT,"Exiting due to a module loader error.");
2608 printf("\nThere was an error loading a module: %s\n\nYou might want to do './inspircd start' instead of 'bin/inspircd'\n\n",ModuleError());
2612 log(DEFAULT,"Total loaded modules: %lu",(unsigned long)MODCOUNT+1);
2615 int InspIRCd(char** argv, int argc)
2617 bool expire_run = false;
2618 std::vector<int> activefds;
2621 OpenLog(argv, argc);
2623 SetupCommandTable();
2624 ReadConfig(true,NULL);
2625 AddServerName(ServerName);
2627 boundPortCount = BindPorts();
2630 startup_time = time(NULL);
2633 ConfValue("pid","file",0,PID,&config_f);
2634 // write once here, to try it out and make sure its ok
2639 if (DaemonSeed() == ERROR)
2641 printf("ERROR: could not go into daemon mode. Shutting down.\n");
2646 /* Because of limitations in kqueue on freebsd, we must fork BEFORE we
2647 * initialize the socket engine.
2649 SE = new SocketEngine();
2651 /* We must load the modules AFTER initializing the socket engine, now */
2654 printf("\nInspIRCd is now running!\n");
2657 freopen("/dev/null","w",stdout);
2658 freopen("/dev/null","w",stderr);
2661 /* Add the listening sockets used for client inbound connections
2662 * to the socket engine
2664 for (int count = 0; count < portCount; count++)
2665 SE->AddFd(openSockfd[count],true,X_LISTEN);
2669 /* main loop, this never returns */
2672 #ifdef _POSIX_PRIORITY_SCHEDULING
2673 sched_yield(); sched_yield();
2675 // we only read time() once per iteration rather than tons of times!
2679 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
2680 // them in a list, then reap the list every second or so.
2681 if (((TIME % 8) == 0) && (!expire_run))
2684 FOREACH_MOD OnBackgroundTimer(TIME);
2688 if ((TIME % 8) == 1)
2691 if (TIME != OLDTIME)
2692 while (DoBackgroundUserStuff(TIME));
2694 SE->Wait(activefds);
2696 unsigned int numberactive = activefds.size();
2697 for (unsigned int activefd = 0; activefd < numberactive; activefd++)
2699 int socket_type = SE->GetType(activefds[activefd]);
2701 if (socket_type == X_ESTAB_CLIENT)
2703 log(DEBUG,"Got a ready socket of type X_ESTAB_CLIENT");
2704 userrec* cu = fd_ref_table[activefds[activefd]];
2711 else if (socket_type == X_ESTAB_MODULE)
2713 log(DEBUG,"Got a ready socket of type X_ESTAB_MODULE");
2714 unsigned int numsockets = module_sockets.size();
2715 for (std::vector<InspSocket*>::iterator a = module_sockets.begin(); a < module_sockets.end(); a++)
2717 InspSocket* s = (InspSocket*)*a;
2718 if ((s) && (s->GetFd() == activefds[activefd]))
2720 if ((s->Timeout(TIME)) || (!s->Poll()))
2722 log(DEBUG,"Socket poll returned false, close and bail");
2723 SE->DelFd(s->GetFd());
2725 module_sockets.erase(a);
2729 if (module_sockets.size() != numsockets) break;
2733 else if (socket_type == X_ESTAB_DNS)
2735 log(DEBUG,"Got a ready socket of type X_ESTAB_DNS");
2736 #ifndef THREADED_DNS
2737 dns_poll(activefds[activefd]);
2740 else if (socket_type == X_LISTEN)
2742 log(DEBUG,"Got a ready socket of type X_LISTEN");
2743 /* It maybe a listener */
2744 for (int count = 0; count < boundPortCount; count++)
2746 if (activefds[activefd] == openSockfd[count])
2748 char target[MAXBUF], resolved[MAXBUF];
2749 length = sizeof (client);
2750 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
2751 log(DEBUG,"Accepted socket %d",incomingSockfd);
2752 strlcpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
2753 strlcpy (resolved, target, MAXBUF);
2754 if (incomingSockfd >= 0)
2756 FOREACH_MOD OnRawSocketAccept(incomingSockfd, resolved, ports[count]);
2758 AddClient(incomingSockfd, resolved, ports[count], false, inet_ntoa (client.sin_addr));
2759 log(DEBUG,"Adding client on port %lu fd=%lu",(unsigned long)ports[count],(unsigned long)incomingSockfd);
2763 WriteOpers("*** WARNING: accept() failed on port %lu (%s)",(unsigned long)ports[count],target);
2764 log(DEBUG,"accept failed: %lu",(unsigned long)ports[count]);
2773 /* This is never reached -- we hope! */