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>
33 #include <ext/hash_map>
55 #include "inspstring.h"
57 #include "helperfuncs.h"
59 #include "socketengine.h"
63 extern struct sockaddr_in client,server;
64 extern socklen_t length;
65 extern std::vector<Module*> modules;
66 extern std::vector<ircd_module*> factory;
68 extern time_t OLDTIME;
70 extern InspIRCd* ServerInstance;
71 extern SocketEngine* SE;
72 extern serverstats* stats;
73 extern ServerConfig *Config;
75 extern userrec* fd_ref_table[65536];
78 extern user_hash clientlist;
79 extern chan_hash chanlist;
81 void ProcessUser(userrec* cu)
84 log(DEBUG,"Processing user with fd %d",cu->fd);
87 FOREACH_RESULT(OnRawSocketRead(cu->fd,data,65535,result2));
90 result = cu->ReadData(data, 65535);
94 log(DEBUG,"Data result returned by module: %d",MOD_RESULT);
97 log(DEBUG,"Read result: %d",result);
100 stats->statsRecv += result;
101 // perform a check on the raw buffer as an array (not a string!) to remove
102 // characters 0 and 7 which are illegal in the RFC - replace them with spaces.
103 // hopefully this should stop even more people whining about "Unknown command: *"
104 for (int checker = 0; checker < result; checker++)
106 if ((data[checker] == 0) || (data[checker] == 7))
111 userrec* current = cu;
112 int currfd = current->fd;
114 // add the data to the users buffer
117 if (!current->AddBuffer(data))
119 // AddBuffer returned false, theres too much data in the user's buffer and theyre up to no good.
120 if (current->registered == 7)
122 kill_link(current,"RecvQ exceeded");
126 WriteOpers("*** Excess flood from %s",current->ip);
127 log(DEFAULT,"Excess flood from: %s",current->ip);
128 add_zline(120,Config->ServerName,"Flood from unregistered connection",current->ip);
129 apply_lines(APPLY_ZLINES);
133 if (current->recvq.length() > (unsigned)Config->NetBufferSize)
135 if (current->registered == 7)
137 kill_link(current,"RecvQ exceeded");
141 WriteOpers("*** Excess flood from %s",current->ip);
142 log(DEFAULT,"Excess flood from: %s",current->ip);
143 add_zline(120,Config->ServerName,"Flood from unregistered connection",current->ip);
144 apply_lines(APPLY_ZLINES);
148 // while there are complete lines to process...
149 while (current->BufferIsReady())
152 if (TIME > current->reset_due)
154 current->reset_due = TIME + current->threshold;
155 current->lines_in = 0;
158 if (current->lines_in > current->flood)
160 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
161 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
162 kill_link(current,"Excess flood");
165 if ((floodlines > current->flood) && (current->flood != 0))
167 if (current->registered == 7)
169 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
170 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
171 kill_link(current,"Excess flood");
175 add_zline(120,Config->ServerName,"Flood from unregistered connection",current->ip);
176 apply_lines(APPLY_ZLINES);
180 char sanitized[MAXBUF];
181 // use GetBuffer to copy single lines into the sanitized string
182 std::string single_line = current->GetBuffer();
183 current->bytes_in += single_line.length();
185 if (single_line.length()>512)
187 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
188 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
189 kill_link(current,"Excess flood");
192 strlcpy(sanitized,single_line.c_str(),MAXBUF);
195 userrec* old_comp = fd_ref_table[currfd];
196 // we're gonna re-scan to check if the nick is gone, after every
197 // command - if it has, we're gonna bail
198 process_buffer(sanitized,current);
199 // look for the user's record in case it's changed... if theyve quit,
200 // we cant do anything more with their buffer, so bail.
201 // there used to be an ugly, slow loop here. Now we have a reference
202 // table, life is much easier (and FASTER)
203 userrec* new_comp = fd_ref_table[currfd];
204 if ((currfd < 0) || (!fd_ref_table[currfd]) || (old_comp != new_comp))
210 /* The user is still here, flush their buffer */
211 current->FlushWriteBuf();
217 if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
219 log(DEBUG,"killing: %s",cu->nick);
220 kill_link(cu,strerror(errno));
224 // result EAGAIN means nothing read
225 else if (result == EAGAIN)
228 else if (result == 0)
230 log(DEBUG,"InspIRCd: Exited: %s",cu->nick);
231 kill_link(cu,"Client exited");
232 log(DEBUG,"Bailing from client exit");
239 * This function is called once a second from the mainloop.
240 * It is intended to do background checking on all the user structs, e.g.
241 * stuff like ping checks, registration timeouts, etc.
242 * The function returns false when it is finished, and true if
243 * it needs to be run again (e.g. it has processed one of a batch of
244 * QUIT messages, but couldnt continue iterating because the iterator
245 * became invalid). This function is also responsible for checking
246 * if InspSocket derived classes are timed out.
248 bool DoBackgroundUserStuff(time_t TIME)
250 unsigned int numsockets = ServerInstance->module_sockets.size();
251 for (std::vector<InspSocket*>::iterator a = ServerInstance->module_sockets.begin(); a < ServerInstance->module_sockets.end(); a++)
253 InspSocket* s = (InspSocket*)*a;
254 if (s->Timeout(TIME))
256 log(DEBUG,"Socket poll returned false, close and bail");
257 SE->DelFd(s->GetFd());
259 ServerInstance->module_sockets.erase(a);
263 if (ServerInstance->module_sockets.size() != numsockets) break;
265 /* TODO: We need a seperate hash containing only local users for this
267 for (user_hash::iterator count2 = clientlist.begin(); count2 != clientlist.end(); count2++)
269 /* Sanity checks for corrupted iterators (yes, really) */
270 userrec* curr = NULL;
272 curr = count2->second;
273 if ((long)curr == -1)
276 if ((curr) && (curr->fd != 0)) /* XXX - why are we checking fd != 0? --w00t */
278 int currfd = curr->fd;
279 // we don't check the state of remote users.
282 curr->FlushWriteBuf();
283 if (curr->GetWriteError() != "")
285 log(DEBUG,"InspIRCd: write error: %s",curr->GetWriteError().c_str());
286 kill_link(curr,curr->GetWriteError().c_str());
289 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
290 // their connection class.
291 if (((unsigned)TIME > (unsigned)curr->timeout) && (curr->registered != 7))
293 log(DEBUG,"InspIRCd: registration timeout: %s",curr->nick);
294 kill_link(curr,"Registration timeout");
297 if ((TIME > curr->signon) && (curr->registered == 3) && (AllModulesReportReady(curr)))
299 log(DEBUG,"signon exceed, registered=3, and modules ready, OK: %d %d",TIME,curr->signon);
300 curr->dns_done = true;
301 stats->statsDnsBad++;
302 FullConnectUser(curr);
303 if (fd_ref_table[currfd] != curr) // something changed, bail pronto
306 if ((curr->dns_done) && (curr->registered == 3) && (AllModulesReportReady(curr)))
308 log(DEBUG,"dns done, registered=3, and modules ready, OK");
309 FullConnectUser(curr);
310 if (fd_ref_table[currfd] != curr) // something changed, bail pronto
313 if ((TIME > curr->nping) && (isnick(curr->nick)) && (curr->registered == 7))
315 if ((!curr->lastping) && (curr->registered == 7))
317 log(DEBUG,"InspIRCd: ping timeout: %s",curr->nick);
318 kill_link(curr,"Ping timeout");
321 Write(curr->fd,"PING :%s",Config->ServerName);
322 log(DEBUG,"InspIRCd: pinging: %s",curr->nick);
324 curr->nping = TIME+curr->pingmax; // was hard coded to 120
332 void OpenLog(char** argv, int argc)
334 std::string logpath = GetFullProgDir(argv,argc) + "/ircd.log";
335 Config->log_file = fopen(logpath.c_str(),"a+");
336 if (!Config->log_file)
338 printf("ERROR: Could not write to logfile %s, bailing!\n\n",logpath.c_str());
342 printf("Logging to ircd.log...\n");
344 printf("Logging to %s...\n",logpath.c_str());
353 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
354 log(DEFAULT,"InspIRCd: startup: not starting with UID 0!");
362 if (*Config->DieValue)
364 printf("WARNING: %s\n\n",Config->DieValue);
365 log(DEFAULT,"Ut-Oh, somebody didn't read their config file: '%s'",Config->DieValue);
370 void LoadAllModules()
372 /* We must load the modules AFTER initializing the socket engine, now */
374 char configToken[MAXBUF];
375 for (int count = 0; count < Config->ConfValueEnum("module",&Config->config_f); count++)
377 Config->ConfValue("module","name",count,configToken,&Config->config_f);
378 printf("Loading module... \033[1;32m%s\033[0m\n",configToken);
379 if (!ServerInstance->LoadModule(configToken))
381 log(DEFAULT,"Exiting due to a module loader error.");
382 printf("\nThere was an error loading a module: %s\n\nYou might want to do './inspircd start' instead of 'bin/inspircd'\n\n",ModuleError());
386 log(DEFAULT,"Total loaded modules: %lu",(unsigned long)MODCOUNT+1);