]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/inspircd.cpp
Decide that it wasn't quite appropriate :(
[user/henk/code/inspircd.git] / src / inspircd.cpp
index 24effa62adf521f67c127c449ece25ec8c31a204..ee30ba4e9e9c7951f469ba22a3227b7a0868f00a 100644 (file)
@@ -2,7 +2,7 @@
  *       | Inspire Internet Relay Chat Daemon |
  *       +------------------------------------+
  *
- *  Inspire is copyright (C) 2002-2005 ChatSpike-Dev.
+ *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
  *                       E-mail:
  *                <brain@chatspike.net>
  *               <Craig@chatspike.net>
@@ -21,11 +21,9 @@ using namespace std;
 #include "inspircd_config.h"
 #include "inspircd.h"
 #include "inspircd_io.h"
-#include <unistd.h>
 #include <fcntl.h>
 #include <sys/errno.h>
 #include <sys/ioctl.h>
-#include <sys/utsname.h>
 #include <time.h>
 #include <string>
 #ifdef GCC3
@@ -76,16 +74,14 @@ int openSockfd[MAXSOCKS];
 sockaddr_in client,server;
 socklen_t length;
 
-extern InspSocket* socket_ref[65535];
+extern InspSocket* socket_ref[MAX_DESCRIPTORS];
 
 time_t TIME = time(NULL), OLDTIME = time(NULL);
 
-SocketEngine* SE = NULL;
-
 // This table references users by file descriptor.
 // its an array to make it VERY fast, as all lookups are referenced
 // by an integer, meaning there is no need for a scan/search operation.
-userrec* fd_ref_table[65536];
+userrec* fd_ref_table[MAX_DESCRIPTORS];
 
 Server* MyServer = new Server;
 ServerConfig *Config = new ServerConfig;
@@ -118,6 +114,16 @@ const char* FindServerNamePtr(std::string servername)
        return FindServerNamePtr(servername);
 }
 
+bool FindServerName(std::string servername)
+{
+       for (servernamelist::iterator a = servernames.begin(); a < servernames.end(); a++)
+       {
+               if (*a == servername)
+                       return true;
+       }
+       return false;
+}
+
 std::string InspIRCd::GetRevision()
 {
        /* w00t got me to replace a bunch of strtok_r
@@ -129,6 +135,8 @@ std::string InspIRCd::GetRevision()
         * into the same variable twice, the first word
         * is discarded, and the second one returned.
         */
+
+       /* XXX - this revision ID is NOT bumping automatically -- w00t */
        std::stringstream Revision("$Revision$");
        std::string single;
        Revision >> single >> single;
@@ -196,7 +204,10 @@ InspIRCd::InspIRCd(int argc, char** argv)
        for(int t = 0; t < 255; t++)
                Config->global_implementation[t] = 0;
 
+       memset(&Config->implement_lists,0,sizeof(Config->implement_lists));
+
         printf("\n");
+       SetSignals();
         if (!Config->nofork)
         {
                 if (DaemonSeed() == ERROR)
@@ -224,7 +235,14 @@ std::string InspIRCd::GetVersionString()
 #else
        char dnsengine[] = "singlethread";
 #endif
-       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);
+       if (*Config->CustomVersion)
+       {
+               snprintf(versiondata,MAXBUF,"%s Rev. %s %s :%s",VERSION,GetRevision().c_str(),Config->ServerName,Config->CustomVersion);
+       }
+       else
+       {
+               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);
+       }
        return versiondata;
 }
 
@@ -275,6 +293,106 @@ void InspIRCd::erase_module(int j)
 
 }
 
+void InspIRCd::MoveTo(std::string modulename,int slot)
+{
+       unsigned int v2 = 256;
+       log(DEBUG,"Moving %s to slot %d",modulename.c_str(),slot);
+       for (unsigned int v = 0; v < Config->module_names.size(); v++)
+       {
+               if (Config->module_names[v] == modulename)
+               {
+                       // found an instance, swap it with the item at MODCOUNT
+                       v2 = v;
+                       break;
+               }
+       }
+       if (v2 == (unsigned int)slot)
+       {
+               log(DEBUG,"Item %s already in slot %d!",modulename.c_str(),slot);
+       }
+       else if (v2 < 256)
+       {
+               // Swap the module names over
+               Config->module_names[v2] = Config->module_names[slot];
+               Config->module_names[slot] = modulename;
+               // now swap the module factories
+               ircd_module* temp = factory[v2];
+               factory[v2] = factory[slot];
+               factory[slot] = temp;
+               // now swap the module objects
+               Module* temp_module = modules[v2];
+               modules[v2] = modules[slot];
+               modules[slot] = temp_module;
+               // now swap the implement lists (we dont
+               // need to swap the global or recount it)
+               for (int n = 0; n < 255; n++)
+               {
+                       char x = Config->implement_lists[v2][n];
+                       Config->implement_lists[v2][n] = Config->implement_lists[slot][n];
+                       Config->implement_lists[slot][n] = x;
+               }
+               log(DEBUG,"Moved %s to slot successfully",modulename.c_str());
+       }
+       else
+       {
+               log(DEBUG,"Move of %s to slot failed!",modulename.c_str());
+       }
+}
+
+void InspIRCd::MoveAfter(std::string modulename, std::string after)
+{
+       log(DEBUG,"Move %s after %s...",modulename.c_str(),after.c_str());
+       for (unsigned int v = 0; v < Config->module_names.size(); v++)
+       {
+               if (Config->module_names[v] == after)
+               {
+                       MoveTo(modulename, v);
+                       return;
+               }
+       }
+}
+
+void InspIRCd::MoveBefore(std::string modulename, std::string before)
+{
+       log(DEBUG,"Move %s before %s...",modulename.c_str(),before.c_str());
+       for (unsigned int v = 0; v < Config->module_names.size(); v++)
+       {
+               if (Config->module_names[v] == before)
+               {
+                       if (v > 0)
+                       {
+                               MoveTo(modulename, v-1);
+                       }
+                       else
+                       {
+                               MoveTo(modulename, v);
+                       }
+                       return;
+               }
+       }
+}
+
+void InspIRCd::MoveToFirst(std::string modulename)
+{
+       MoveTo(modulename,0);
+}
+
+void InspIRCd::MoveToLast(std::string modulename)
+{
+       MoveTo(modulename,MODCOUNT);
+}
+
+void InspIRCd::BuildISupport()
+{
+        // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
+       std::stringstream v;
+       v << "WALLCHOPS WALLVOICES MODES=" << MAXMODES << " CHANTYPES=# PREFIX=(ohv)@%+ MAP MAXCHANNELS=" << MAXCHANS << " MAXBANS=60 VBANLIST NICKLEN=" << NICKMAX-1;
+       v << " CASEMAPPING=rfc1459 STATUSMSG=@%+ CHARSET=ascii TOPICLEN=" << MAXTOPIC << " KICKLEN=" << MAXKICK << " MAXTARGETS=" << Config->MaxTargets << " AWAYLEN=";
+       v << MAXAWAY << " CHANMODES=b,k,l,psmnti FNC NETWORK=" << Config->Network << " MAXPARA=32";
+       Config->data005 = v.str();
+       FOREACH_MOD(I_On005Numeric,On005Numeric(Config->data005));
+}
+
 bool InspIRCd::UnloadModule(const char* filename)
 {
        std::string filename_str = filename;
@@ -298,10 +416,23 @@ bool InspIRCd::UnloadModule(const char* filename)
                                modules[j]->OnCleanup(TYPE_USER,u->second);
                        }
 
+                       FOREACH_MOD(I_OnUnloadModule,OnUnloadModule(modules[j],Config->module_names[j]));
+
                         for(int t = 0; t < 255; t++)
+                       {
                                Config->global_implementation[t] -= Config->implement_lists[j][t];
+                       }
+
+                       /* We have to renumber implement_lists after unload because the module numbers change!
+                        */
+                       for(int j2 = j; j2 < 254; j2++)
+                       {
+                               for(int t = 0; t < 255; t++)
+                               {
+                                       Config->implement_lists[j2][t] = Config->implement_lists[j2+1][t];
+                               }
+                       }
 
-                       FOREACH_MOD(I_OnUnloadModule,OnUnloadModule(modules[j],Config->module_names[j]));
                        // found the module
                        log(DEBUG,"Deleting module...");
                        erase_module(j);
@@ -311,6 +442,7 @@ bool InspIRCd::UnloadModule(const char* filename)
                         Parser->RemoveCommands(filename);
                        log(DEFAULT,"Module %s unloaded",filename);
                        MODCOUNT--;
+                       BuildISupport();
                        return true;
                }
        }
@@ -323,18 +455,20 @@ bool InspIRCd::LoadModule(const char* filename)
 {
        char modfile[MAXBUF];
 #ifdef STATIC_LINK
-       snprintf(modfile,MAXBUF,"%s",filename);
+       strlcpy(modfile,filename,MAXBUF);
 #else
        snprintf(modfile,MAXBUF,"%s/%s",Config->ModPath,filename);
 #endif
        std::string filename_str = filename;
 #ifndef STATIC_LINK
+#ifndef IS_CYGWIN
        if (!DirValid(modfile))
        {
                log(DEFAULT,"Module %s is not within the modules directory.",modfile);
                snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
                return false;
        }
+#endif
 #endif
        log(DEBUG,"Loading module: %s",modfile);
 #ifndef STATIC_LINK
@@ -356,32 +490,46 @@ bool InspIRCd::LoadModule(const char* filename)
                 {
                         log(DEFAULT,"Unable to load %s: %s",modfile,factory[MODCOUNT+1]->LastError());
                        snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[MODCOUNT+1]->LastError());
-                       MODCOUNT--;
                        return false;
                 }
-                if (factory[MODCOUNT+1]->factory)
-                {
-                       Module* m = factory[MODCOUNT+1]->factory->CreateModule(MyServer);
-                        modules[MODCOUNT+1] = m;
-                        /* save the module and the module's classfactory, if
-                         * this isnt done, random crashes can occur :/ */
-                        Config->module_names.push_back(filename);
-
-                       char* x = &Config->implement_lists[MODCOUNT+1][0];
-                       for(int t = 0; t < 255; t++)
-                               x[t] = 0;
-
-                       modules[MODCOUNT+1]->Implements(x);
-
-                       for(int t = 0; t < 255; t++)
-                               Config->global_implementation[t] += Config->implement_lists[MODCOUNT+1][t];
-                }
-               else
-                {
-                        log(DEFAULT,"Unable to load %s",modfile);
-                       snprintf(MODERR,MAXBUF,"Factory function failed!");
+               try
+               {
+                       if (factory[MODCOUNT+1]->factory)
+                       {
+                               Module* m = factory[MODCOUNT+1]->factory->CreateModule(MyServer);
+                               modules[MODCOUNT+1] = m;
+                               /* save the module and the module's classfactory, if
+                                * this isnt done, random crashes can occur :/ */
+                               Config->module_names.push_back(filename);
+
+                               char* x = &Config->implement_lists[MODCOUNT+1][0];
+                               for(int t = 0; t < 255; t++)
+                                       x[t] = 0;
+
+                               modules[MODCOUNT+1]->Implements(x);
+
+                               for(int t = 0; t < 255; t++)
+                               {
+                                       Config->global_implementation[t] += Config->implement_lists[MODCOUNT+1][t];
+                                       if (Config->implement_lists[MODCOUNT+1][t])
+                                       {
+                                               log(DEBUG,"Add global implementation: %d %d => %d",MODCOUNT+1,t,Config->global_implementation[t]);
+                                       }
+                               }
+                       }
+                       else
+                       {
+                                       log(DEFAULT,"Unable to load %s",modfile);
+                               snprintf(MODERR,MAXBUF,"Factory function failed!");
+                               return false;
+                       }
+               }
+               catch (ModuleException& modexcept)
+               {
+                       log(DEFAULT,"Unable to load %s: ",modfile,modexcept.GetReason());
+                       snprintf(MODERR,MAXBUF,"Factory function threw an exception: %s",modexcept.GetReason());
                        return false;
-                }
+               }
 #ifndef STATIC_LINK
         }
         else
@@ -393,19 +541,64 @@ bool InspIRCd::LoadModule(const char* filename)
 #endif
        MODCOUNT++;
        FOREACH_MOD(I_OnLoadModule,OnLoadModule(modules[MODCOUNT],filename_str));
+       // now work out which modules, if any, want to move to the back of the queue,
+       // and if they do, move them there.
+       std::vector<std::string> put_to_back;
+       std::vector<std::string> put_to_front;
+       std::map<std::string,std::string> put_before;
+       std::map<std::string,std::string> put_after;
+       for (unsigned int j = 0; j < Config->module_names.size(); j++)
+       {
+               if (modules[j]->Prioritize() == PRIORITY_LAST)
+               {
+                       put_to_back.push_back(Config->module_names[j]);
+               }
+               else if (modules[j]->Prioritize() == PRIORITY_FIRST)
+               {
+                       put_to_front.push_back(Config->module_names[j]);
+               }
+               else if ((modules[j]->Prioritize() & 0xFF) == PRIORITY_BEFORE)
+               {
+                       log(DEBUG,"Module %d wants PRIORITY_BEFORE",j);
+                       put_before[Config->module_names[j]] = Config->module_names[modules[j]->Prioritize() >> 8];
+                       log(DEBUG,"Before: %s",Config->module_names[modules[j]->Prioritize() >> 8].c_str());
+               }
+               else if ((modules[j]->Prioritize() & 0xFF) == PRIORITY_AFTER)
+               {
+                       log(DEBUG,"Module %d wants PRIORITY_AFTER",j);
+                       put_after[Config->module_names[j]] = Config->module_names[modules[j]->Prioritize() >> 8];
+                       log(DEBUG,"After: %s",Config->module_names[modules[j]->Prioritize() >> 8].c_str());
+               }
+       }
+       for (unsigned int j = 0; j < put_to_back.size(); j++)
+       {
+               MoveToLast(put_to_back[j]);
+       }
+       for (unsigned int j = 0; j < put_to_front.size(); j++)
+       {
+               MoveToFirst(put_to_front[j]);
+       }
+       for (std::map<std::string,std::string>::iterator j = put_before.begin(); j != put_before.end(); j++)
+       {
+               MoveBefore(j->first,j->second);
+       }
+       for (std::map<std::string,std::string>::iterator j = put_after.begin(); j != put_after.end(); j++)
+       {
+               MoveAfter(j->first,j->second);
+       }
+       BuildISupport();
        return true;
 }
 
 int InspIRCd::Run()
 {
        bool expire_run = false;
-       std::vector<int> activefds;
+       int activefds[MAX_DESCRIPTORS];
        int incomingSockfd;
        int in_port;
        userrec* cu = NULL;
        InspSocket* s = NULL;
        InspSocket* s_del = NULL;
-       char* target;
        unsigned int numberactive;
         sockaddr_in sock_us;     // our port number
        socklen_t uslen;         // length of our port number
@@ -444,26 +637,47 @@ int InspIRCd::Run()
                 * timing using this event, so we dont have to
                 * time this exactly).
                 */
-               if (((TIME % 8) == 0) && (!expire_run))
+               if (((TIME % 5) == 0) && (!expire_run))
                {
                        expire_lines();
                        FOREACH_MOD(I_OnBackgroundTimer,OnBackgroundTimer(TIME));
+                       TickMissedTimers(TIME);
                        expire_run = true;
                        continue;
                }
-               if ((TIME % 8) == 1)
+               else if ((TIME % 5) == 1)
+               {
                        expire_run = false;
+               }
                
                /* Once a second, do the background processing */
                if (TIME != OLDTIME)
-                       while (DoBackgroundUserStuff(TIME));
+               {
+                       if (TIME < OLDTIME)
+                               WriteOpers("*** \002EH?!\002 -- Time is flowing BACKWARDS in this dimension! Clock drifted backwards %d secs.",abs(OLDTIME-TIME));
+                       DoBackgroundUserStuff(TIME);
+
+                       /*
+                        * Trigger all InspTimers that are pending
+                        */
+               }
+
+               /* Process timeouts on module sockets each time around
+                * the loop. There shouldnt be many module sockets, at
+                * most, 20 or so, so this won't be much of a performance
+                * hit at all.
+                */
+               DoSocketTimeouts(TIME);
+
+               TickTimers(TIME);
 
                /* Call the socket engine to wait on the active
                 * file descriptors. The socket engine has everything's
                 * descriptors in its list... dns, modules, users,
                 * servers... so its nice and easy, just one call.
                 */
-               SE->Wait(activefds);
+               if (!(numberactive = SE->Wait(activefds)))
+                       continue;
 
                /**
                 * Now process each of the fd's. For users, we have a fast
@@ -472,7 +686,6 @@ int InspIRCd::Run()
                 * listening ports or module sockets though, things could get
                 * ugly.
                 */
-               numberactive = activefds.size();
                for (unsigned int activefd = 0; activefd < numberactive; activefd++)
                {
                        int socket_type = SE->GetType(activefds[activefd]);
@@ -533,38 +746,37 @@ int InspIRCd::Run()
                                        uslen = sizeof(sock_us);
                                        length = sizeof(client);
                                        incomingSockfd = accept (activefds[activefd],(struct sockaddr*)&client,&length);
-                                       if (!getsockname(incomingSockfd,(sockaddr*)&sock_us,&uslen))
+                                       
+                                       if ((incomingSockfd > -1) && (!getsockname(incomingSockfd,(sockaddr*)&sock_us,&uslen)))
                                        {
                                                in_port = ntohs(sock_us.sin_port);
                                                log(DEBUG,"Accepted socket %d",incomingSockfd);
-                                               target = (char*)inet_ntoa(client.sin_addr);
                                                /* Years and years ago, we used to resolve here
                                                 * using gethostbyaddr(). That is sucky and we
                                                 * don't do that any more...
                                                 */
-                                               if (incomingSockfd >= 0)
+                                               NonBlocking(incomingSockfd);
+                                               if (Config->GetIOHook(in_port))
                                                {
-                                                       NonBlocking(incomingSockfd);
-                                                       if (Config->GetIOHook(in_port))
+                                                       try
                                                        {
-                                                               Config->GetIOHook(in_port)->OnRawSocketAccept(incomingSockfd, target, in_port);
+                                                               Config->GetIOHook(in_port)->OnRawSocketAccept(incomingSockfd, (char*)inet_ntoa(client.sin_addr), in_port);
                                                        }
-                                                       stats->statsAccept++;
-                                                       AddClient(incomingSockfd, target, in_port, false, target);
-                                                       log(DEBUG,"Adding client on port %lu fd=%lu",(unsigned long)in_port,(unsigned long)incomingSockfd);
-                                               }
-                                               else
-                                               {
-                                                       WriteOpers("*** WARNING: accept() failed on port %lu (%s)",(unsigned long)in_port,target);
-                                                       log(DEBUG,"accept failed: %lu",(unsigned long)in_port);
-                                                       stats->statsRefused++;
+                                                       catch (ModuleException& modexcept)
+                                                       {
+                                                               log(DEBUG,"Module exception cought: %s",modexcept.GetReason()); \
+                                                       }
                                                }
+                                               stats->statsAccept++;
+                                               AddClient(incomingSockfd, in_port, false, client.sin_addr);
+                                               log(DEBUG,"Adding client on port %lu fd=%lu",(unsigned long)in_port,(unsigned long)incomingSockfd);
                                        }
                                        else
                                        {
-                                               log(DEBUG,"Couldnt look up the port number for fd %lu (OS BROKEN?!)",incomingSockfd);
+                                               log(DEBUG,"Accept failed on fd %lu: %s",(unsigned long)incomingSockfd,strerror(errno));
                                                shutdown(incomingSockfd,2);
                                                close(incomingSockfd);
+                                               stats->statsRefused++;
                                        }
                                break;