1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd is copyright (C) 2002-2006 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>
54 #include "inspstring.h"
56 #include "helperfuncs.h"
58 #include "socketengine.h"
59 #include "userprocess.h"
61 #include "command_parse.h"
62 #include "cull_list.h"
65 extern struct sockaddr_in client,server;
66 extern socklen_t length;
67 extern std::vector<Module*> modules;
68 extern std::vector<ircd_module*> factory;
69 extern std::vector<InspSocket*> module_sockets;
71 extern time_t OLDTIME;
72 extern std::vector<userrec*> local_users;
73 extern InspSocket* socket_ref[MAX_DESCRIPTORS];
74 char LOG_FILE[MAXBUF];
76 extern InspIRCd* ServerInstance;
77 extern ServerConfig *Config;
78 extern userrec* fd_ref_table[MAX_DESCRIPTORS];
81 extern user_hash clientlist;
82 extern chan_hash chanlist;
84 void ProcessUser(userrec* cu)
88 if (cu->fd == FD_MAGIC_NUMBER)
91 log(DEBUG,"Processing user with fd %d",cu->fd);
93 if (Config->GetIOHook(cu->port))
100 MOD_RESULT = Config->GetIOHook(cu->port)->OnRawSocketRead(cu->fd,data,65535,result2);
101 log(DEBUG,"Data result returned by module: %d",MOD_RESULT);
103 catch (ModuleException& modexcept)
105 log(DEBUG,"Module exception cought: %s",modexcept.GetReason()); \
119 result = cu->ReadData(data, 65535);
122 log(DEBUG,"Read result: %d",result);
124 if ((result) && (result != -EAGAIN))
130 ServerInstance->stats->statsRecv += result;
132 * perform a check on the raw buffer as an array (not a string!) to remove
133 * characters 0 and 7 which are illegal in the RFC - replace them with spaces.
134 * hopefully this should stop even more people whining about "Unknown command: *"
138 * XXX - potential replacement for the below using my beloved pointers. --w00t
140 * for (char *c = data; data && *data; data++)
142 * if (*data == 0 || *data == 7)
147 for (int checker = 0; checker < result; checker++)
149 if ((data[checker] == 0) || (data[checker] == 7))
157 currfd = current->fd;
160 // add the data to the users buffer
163 if (!current->AddBuffer(data))
165 // AddBuffer returned false, theres too much data in the user's buffer and theyre up to no good.
166 if (current->registered == 7)
168 // Make sure they arn't flooding long lines.
169 if (TIME > current->reset_due)
171 current->reset_due = TIME + current->threshold;
172 current->lines_in = 0;
177 if (current->lines_in > current->flood)
179 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
180 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
181 kill_link(current,"Excess flood");
186 WriteServ(currfd, "NOTICE %s :Your previous line was too long and was not delivered (Over 512chars) Please shorten it.", current->nick);
192 WriteOpers("*** Excess flood from %s",(char*)inet_ntoa(current->ip4));
193 log(DEFAULT,"Excess flood from: %s",(char*)inet_ntoa(current->ip4));
194 add_zline(120,Config->ServerName,"Flood from unregistered connection",(char*)inet_ntoa(current->ip4));
195 apply_lines(APPLY_ZLINES);
201 if (current->recvq.length() > (unsigned)Config->NetBufferSize)
203 if (current->registered == 7)
205 kill_link(current,"RecvQ exceeded");
209 WriteOpers("*** Excess flood from %s",(char*)inet_ntoa(current->ip4));
210 log(DEFAULT,"Excess flood from: %s",(char*)inet_ntoa(current->ip4));
211 add_zline(120,Config->ServerName,"Flood from unregistered connection",(char*)inet_ntoa(current->ip4));
212 apply_lines(APPLY_ZLINES);
218 // while there are complete lines to process...
219 while (current->BufferIsReady())
221 char sanitized[MAXBUF];
224 if (TIME > current->reset_due)
226 current->reset_due = TIME + current->threshold;
227 current->lines_in = 0;
232 if (current->lines_in > current->flood)
234 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
235 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
236 kill_link(current,"Excess flood");
240 if ((floodlines > current->flood) && (current->flood != 0))
242 if (current->registered == 7)
244 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
245 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
246 kill_link(current,"Excess flood");
250 add_zline(120,Config->ServerName,"Flood from unregistered connection",(char*)inet_ntoa(current->ip4));
251 apply_lines(APPLY_ZLINES);
257 // use GetBuffer to copy single lines into the sanitized string
258 std::string single_line = current->GetBuffer();
259 current->bytes_in += single_line.length();
261 strlcpy(sanitized,single_line.c_str(),511);
265 userrec* old_comp = fd_ref_table[currfd];
267 ServerInstance->Parser->ProcessBuffer(sanitized,current);
269 * look for the user's record in case it's changed... if theyve quit,
270 * we cant do anything more with their buffer, so bail.
271 * there used to be an ugly, slow loop here. Now we have a reference
272 * table, life is much easier (and FASTER)
274 userrec* new_comp = fd_ref_table[currfd];
275 if ((currfd < 0) || (!fd_ref_table[currfd]) || (old_comp != new_comp))
281 /* The user is still here, flush their buffer */
282 current->FlushWriteBuf();
290 if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
292 log(DEBUG,"killing: %s",cu->nick);
293 kill_link(cu,strerror(errno));
298 // result EAGAIN means nothing read
299 else if ((result == EAGAIN) || (result == -EAGAIN))
303 else if (result == 0)
305 log(DEBUG,"InspIRCd: Exited: %s",cu->nick);
306 kill_link(cu,"Client exited");
307 log(DEBUG,"Bailing from client exit");
312 void DoSocketTimeouts(time_t TIME)
314 unsigned int numsockets = module_sockets.size();
315 SocketEngine* SE = ServerInstance->SE;
317 for (std::vector<InspSocket*>::iterator a = module_sockets.begin(); a < module_sockets.end(); a++)
319 InspSocket* s = (InspSocket*)*a;
320 if ((s) && (socket_ref[s->GetFd()] != NULL) && (s->Timeout(TIME)))
322 log(DEBUG,"userprocess.cpp: Socket poll returned false, close and bail");
323 socket_ref[s->GetFd()] = NULL;
324 SE->DelFd(s->GetFd());
325 module_sockets.erase(a);
331 if (module_sockets.size() != numsockets)
337 * This function is called once a second from the mainloop.
338 * It is intended to do background checking on all the user structs, e.g.
339 * stuff like ping checks, registration timeouts, etc. This function is
340 * also responsible for checking if InspSocket derived classes are timed out.
342 void DoBackgroundUserStuff(time_t TIME)
344 CullList GlobalGoners;
346 for (std::vector<userrec*>::iterator count2 = local_users.begin(); count2 != local_users.end(); count2++)
348 /* Sanity checks for corrupted iterators (yes, really) */
349 userrec* curr = NULL;
352 curr = (userrec*)(*count2);
353 if ((long)curr == -1)
359 * registration timeout -- didnt send USER/NICK/HOST
360 * in the time specified in their connection class.
362 if (((unsigned)TIME > (unsigned)curr->timeout) && (curr->registered != 7))
364 log(DEBUG,"InspIRCd: registration timeout: %s",curr->nick);
365 GlobalGoners.AddItem(curr,"Registration timeout");
370 * user has signed on with USER/NICK/PASS, and dns has completed, all the modules
371 * say this user is ok to proceed, fully connect them.
373 if ((TIME > curr->signon) && (curr->registered == 3) && (AllModulesReportReady(curr)))
375 curr->dns_done = true;
376 ServerInstance->stats->statsDnsBad++;
377 FullConnectUser(curr,&GlobalGoners);
381 if ((curr->dns_done) && (curr->registered == 3) && (AllModulesReportReady(curr)))
383 log(DEBUG,"dns done, registered=3, and modules ready, OK");
384 FullConnectUser(curr,&GlobalGoners);
388 // It's time to PING this user. Send them a ping.
389 if ((TIME > curr->nping) && (curr->registered == 7))
391 // This user didn't answer the last ping, remove them
394 GlobalGoners.AddItem(curr,"Ping timeout");
398 Write(curr->fd,"PING :%s",Config->ServerName);
400 curr->nping = TIME+curr->pingmax;
404 * We can flush the write buffer as the last thing we do, because if they
405 * match any of the above conditions its no use flushing their buffer anyway.
407 curr->FlushWriteBuf();
409 if (*curr->GetWriteError())
411 GlobalGoners.AddItem(curr,curr->GetWriteError());
417 /* Remove all the queued users who are due to be quit, free memory used. */
418 GlobalGoners.Apply();
421 void OpenLog(char** argv, int argc)
425 if (Config->logpath == "")
427 Config->logpath = GetFullProgDir(argv,argc) + "/ircd.log";
432 Config->log_file = fopen(LOG_FILE,"a+");
434 if (!Config->log_file)
436 printf("ERROR: Could not write to logfile %s, bailing!\n\n",Config->logpath.c_str());
443 Config->log_file = fopen(Config->logpath.c_str(),"a+");
445 if (!Config->log_file)
447 printf("ERROR: Could not write to logfile %s, bailing!\n\n",Config->logpath.c_str());
457 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
458 log(DEFAULT,"InspIRCd: startup: not starting with UID 0!");
466 if (*Config->DieValue)
468 printf("WARNING: %s\n\n",Config->DieValue);
469 log(DEFAULT,"Uh-Oh, somebody didn't read their config file: '%s'",Config->DieValue);
474 /* We must load the modules AFTER initializing the socket engine, now */
475 void LoadAllModules(InspIRCd* ServerInstance)
477 char configToken[MAXBUF];
478 Config->module_names.clear();
482 for (int count = 0; count < Config->ConfValueEnum("module",&Config->config_f); count++)
484 Config->ConfValue("module","name",count,configToken,&Config->config_f);
485 printf("[\033[1;32m*\033[0m] Loading module:\t\033[1;32m%s\033[0m\n",configToken);
487 if (!ServerInstance->LoadModule(configToken))
489 log(DEFAULT,"Exiting due to a module loader error.");
490 printf("\nThere was an error loading a module: %s\n\n",ServerInstance->ModuleError());
495 log(DEFAULT,"Total loaded modules: %lu",(unsigned long)MODCOUNT+1);