]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/inspircd.cpp
Auto loading of commands as shared objects via dlsym (very lightweight interface...
[user/henk/code/inspircd.git] / src / inspircd.cpp
index c5f1a962fa2d2fafcac19bf881a72938d904a3bc..7efbaa54f02a3c078a7f4cf543c9ff593a647d23 100644 (file)
 #include "inspircd.h"
 #include "configreader.h"
 #include <signal.h>
-#include <time.h>
-#include <string>
 #include <exception>
-#include <stdexcept>
-#include <new>
-#include <map>
-#include <sstream>
 #include <fstream>
-#include <vector>
-#include <deque>
 #include "modules.h"
 #include "mode.h"
 #include "xline.h"
 #include "command_parse.h"
 
 using irc::sockets::NonBlocking;
+using irc::sockets::Blocking;
 using irc::sockets::insp_ntoa;
 using irc::sockets::insp_inaddr;
 using irc::sockets::insp_sockaddr;
 
-char lowermap[255];
-
 InspIRCd* SI = NULL;
 
 void InspIRCd::AddServerName(const std::string &servername)
@@ -109,22 +100,30 @@ void InspIRCd::Rehash(int status)
 
 void InspIRCd::SetSignals(bool SEGVHandler)
 {
-       signal (SIGALRM, SIG_IGN);
-       signal (SIGHUP, InspIRCd::Rehash);
-       signal (SIGPIPE, SIG_IGN);
-       signal (SIGTERM, InspIRCd::Exit);
+       signal(SIGALRM, SIG_IGN);
+       signal(SIGHUP, InspIRCd::Rehash);
+       signal(SIGPIPE, SIG_IGN);
+       signal(SIGTERM, InspIRCd::Exit);
+       signal(SIGCHLD, SIG_IGN);
 }
 
 bool InspIRCd::DaemonSeed()
 {
        int childpid;
        if ((childpid = fork ()) < 0)
-               return (ERROR);
+               return false;
        else if (childpid > 0)
        {
-               /* We wait a few seconds here, so that the shell prompt doesnt come back over the output */
-               sleep(6);
-               exit (0);
+               /* We wait here for the child process to kill us,
+                * so that the shell prompt doesnt come back over
+                * the output.
+                * Sending a kill with a signal of 0 just checks
+                * if the child pid is still around. If theyre not,
+                * they threw an error and we should give up.
+                */
+               while (kill(childpid, 0) != -1)
+                       sleep(1);
+               exit(ERROR);
        }
        setsid ();
        umask (007);
@@ -142,7 +141,7 @@ bool InspIRCd::DaemonSeed()
                if (setrlimit(RLIMIT_CORE, &rl) == -1)
                        this->Log(DEFAULT,"setrlimit() failed, cannot increase coredump size.");
        }
-  
+
        return true;
 }
 
@@ -171,17 +170,13 @@ InspIRCd::InspIRCd(int argc, char** argv)
        : ModCount(-1), duration_m(60), duration_h(60*60), duration_d(60*60*24), duration_w(60*60*24*7), duration_y(60*60*24*365)
 {
        bool SEGVHandler = false;
-       //ServerInstance = this;
 
        modules.resize(255);
        factory.resize(255);
-
-       memset(fd_ref_table, 0, sizeof(fd_ref_table));
-       memset(socket_ref, 0, sizeof(socket_ref));
        
        this->Config = new ServerConfig(this);
+       this->SNO = new SnomaskManager(this);
        this->Start();
-       this->module_sockets.clear();
        this->TIME = this->OLDTIME = this->startup_time = time(NULL);
        srand(this->TIME);
        this->Log(DEBUG,"*** InspIRCd starting up!");
@@ -244,9 +239,7 @@ InspIRCd::InspIRCd(int argc, char** argv)
 
        strlcpy(Config->MyExecutable,argv[0],MAXBUF);
 
-       this->MakeLowerMap();
-
-       OpenLog(argv, argc);
+       this->OpenLog(argv, argc);
        this->stats = new serverstats();
        this->Parser = new CommandParser(this);
        this->Timers = new TimerManager();
@@ -285,16 +278,13 @@ InspIRCd::InspIRCd(int argc, char** argv)
 
        this->Res = new DNS(this);
 
-       this->Log(DEBUG,"RES: %08x",this->Res);
-
        this->LoadAllModules();
-
        /* Just in case no modules were loaded - fix for bug #101 */
        this->BuildISupport();
 
        if (!stats->BoundPortCount)
        {
-               printf("\nI couldn't bind any ports! Are you sure you didn't start InspIRCd twice?\n");
+               printf("\nERROR: I couldn't bind any ports! Are you sure you didn't start InspIRCd twice?\n");
                Exit(ERROR);
        }
 
@@ -304,8 +294,8 @@ InspIRCd::InspIRCd(int argc, char** argv)
        this->Log(DEBUG,"%d listeners",stats->BoundPortCount);
        for (unsigned long count = 0; count < stats->BoundPortCount; count++)
        {
-               this->Log(DEBUG,"Add listener: %d",Config->openSockfd[count]);
-               if (!SE->AddFd(Config->openSockfd[count],true,X_LISTEN))
+               this->Log(DEBUG,"Add listener: %d",Config->openSockfd[count]->GetFd());
+               if (!SE->AddFd(Config->openSockfd[count]))
                {
                        printf("\nEH? Could not add listener to socketengine. You screwed up, aborting.\n");
                        Exit(ERROR);
@@ -314,20 +304,16 @@ InspIRCd::InspIRCd(int argc, char** argv)
 
        if (!Config->nofork)
        {
-               fclose(stdout);
-               fclose(stderr);
+               if (kill(getppid(), SIGTERM) == -1)
+                       printf("Error killing parent process: %s\n",strerror(errno));
                fclose(stdin);
+               fclose(stderr);
+               fclose(stdout);
        }
 
        printf("\nInspIRCd is now running!\n");
 
        this->WritePID(Config->PID);
-
-       /* main loop, this never returns */
-       expire_run = false;
-       iterations = 0;
-
-       return;
 }
 
 std::string InspIRCd::GetVersionString()
@@ -477,9 +463,9 @@ 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 << "WALLCHOPS WALLVOICES MODES=" << MAXMODES << " CHANTYPES=# PREFIX=" << this->Modes->BuildPrefixes() << " 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";
+       v << MAXAWAY << " CHANMODES=" << this->Modes->ChanModes() << " FNC NETWORK=" << Config->Network << " MAXPARA=32";
        Config->data005 = v.str();
        FOREACH_MOD_I(this,I_On005Numeric,On005Numeric(Config->data005));
 }
@@ -635,88 +621,39 @@ bool InspIRCd::LoadModule(const char* filename)
        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)
-               {
                        put_before[Config->module_names[j]] = Config->module_names[modules[j]->Prioritize() >> 8];
-               }
                else if ((modules[j]->Prioritize() & 0xFF) == PRIORITY_AFTER)
-               {
                        put_after[Config->module_names[j]] = Config->module_names[modules[j]->Prioritize() >> 8];
-               }
        }
        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;
 }
 
 void InspIRCd::DoOneIteration(bool process_module_sockets)
 {
-       int activefds[MAX_DESCRIPTORS];
-       int incomingSockfd;
-       int in_port;
-       userrec* cu = NULL;
-       InspSocket* s = NULL;
-       InspSocket* s_del = NULL;
-       unsigned int numberactive;
-       insp_sockaddr sock_us;     // our port number
-       socklen_t uslen;         // length of our port number
-
        /* time() seems to be a pretty expensive syscall, so avoid calling it too much.
         * Once per loop iteration is pleanty.
         */
        OLDTIME = TIME;
        TIME = time(NULL);
-       
+
        /* Run background module timers every few seconds
         * (the docs say modules shouldnt rely on accurate
         * timing using this event, so we dont have to
         * time this exactly).
         */
-       if (((TIME % 5) == 0) && (!expire_run))
-       {
-               XLines->expire_lines();
-               if (process_module_sockets)
-               {
-                       FOREACH_MOD_I(this,I_OnBackgroundTimer,OnBackgroundTimer(TIME));
-               }
-               Timers->TickMissedTimers(TIME);
-               expire_run = true;
-               return;
-       }   
-       else if ((TIME % 5) == 1)
-       {
-               expire_run = false;
-       }
-
-       if (iterations++ == 15)
-       {
-               iterations = 0;
-               this->DoBackgroundUserStuff(TIME);
-       }
-       /* Once a second, do the background processing */
        if (TIME != OLDTIME)
        {
                if (TIME < OLDTIME)
@@ -725,161 +662,25 @@ void InspIRCd::DoOneIteration(bool process_module_sockets)
                {
                        irc::whowas::MaintainWhoWas(TIME);
                }
+               Timers->TickTimers(TIME);
+               this->DoBackgroundUserStuff(TIME);
+
+               if ((TIME % 5) == 0)
+               {
+                       XLines->expire_lines();
+                       FOREACH_MOD_I(this,I_OnBackgroundTimer,OnBackgroundTimer(TIME));
+                       Timers->TickMissedTimers(TIME);
+               }
        }
 
-       /* 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.   
-        */ 
-       if (process_module_sockets)
-               this->DoSocketTimeouts(TIME);
-        
-       Timers->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.
+        * This will cause any read or write events to be 
+        * dispatched to their handlers.
         */
-       if (!(numberactive = SE->Wait(activefds)))
-               return;
-
-       /**
-        * Now process each of the fd's. For users, we have a fast
-        * lookup table which can find a user by file descriptor, so
-        * processing them by fd isnt expensive. If we have a lot of
-        * listening ports or module sockets though, things could get
-        * ugly.
-        */
-       this->Log(DEBUG,"There are %d fd's to process.",numberactive);
-
-       for (unsigned int activefd = 0; activefd < numberactive; activefd++)
-       {
-               int socket_type = SE->GetType(activefds[activefd]);
-               switch (socket_type)
-               {
-                       case X_ESTAB_CLIENT:
-
-                               this->Log(DEBUG,"Type: X_ESTAB_CLIENT: fd=%d",activefds[activefd]);
-                               cu = this->fd_ref_table[activefds[activefd]];
-                               if (cu)
-                                       this->ProcessUser(cu);
-       
-                       break;
-       
-                       case X_ESTAB_MODULE:
-
-                               this->Log(DEBUG,"Type: X_ESTAB_MODULE: fd=%d",activefds[activefd]);
-
-                               if (!process_module_sockets)
-                                       break;
-
-                               /* Process module-owned sockets.
-                                * Modules are encouraged to inherit their sockets from
-                                * InspSocket so we can process them neatly like this.
-                                */
-                               s = this->socket_ref[activefds[activefd]]; 
-             
-                               if ((s) && (!s->Poll()))
-                               {
-                                       this->Log(DEBUG,"Socket poll returned false, close and bail");
-                                       SE->DelFd(s->GetFd());
-                                       this->socket_ref[activefds[activefd]] = NULL;
-                                       for (std::vector<InspSocket*>::iterator a = module_sockets.begin(); a < module_sockets.end(); a++)
-                                       {
-                                               s_del = *a;
-                                               if ((s_del) && (s_del->GetFd() == activefds[activefd]))
-                                               {
-                                                       module_sockets.erase(a);
-                                                       break;
-                                               }
-                                       }
-                                       s->Close();
-                                       DELETE(s);
-                               }
-                               else if (!s)
-                               {
-                                       this->Log(DEBUG,"WTF, X_ESTAB_MODULE for nonexistent InspSocket, removed!");
-                                       SE->DelFd(s->GetFd());
-                               }
-                       break;
-
-                       case X_ESTAB_DNS:
-                               /* Handles instances of the Resolver class,
-                                * a simple class extended by modules and the core for
-                                * nonblocking resolving of addresses.
-                                */
-                               this->Res->MarshallReads(activefds[activefd]);
-                       break;
-
-                       case X_LISTEN:
-
-                               this->Log(DEBUG,"Type: X_LISTEN: fd=%d",activefds[activefd]);
-
-                               /* It's a listener */
-                               uslen = sizeof(sock_us);
-                               length = sizeof(client);
-                               incomingSockfd = accept (activefds[activefd],(struct sockaddr*)&client,&length);
-       
-                               if ((incomingSockfd > -1) && (!getsockname(incomingSockfd,(sockaddr*)&sock_us,&uslen)))
-                               {
-#ifdef IPV6
-                                       in_port = ntohs(sock_us.sin6_port);
-#else
-                                       in_port = ntohs(sock_us.sin_port);
-#endif
-                                       this->Log(DEBUG,"Accepted socket %d",incomingSockfd);
-                                       /* Years and years ago, we used to resolve here
-                                        * using gethostbyaddr(). That is sucky and we
-                                        * don't do that any more...
-                                        */
-                                       NonBlocking(incomingSockfd);
-                                       if (Config->GetIOHook(in_port))
-                                       {
-                                               try
-                                               {
-#ifdef IPV6
-                                                       Config->GetIOHook(in_port)->OnRawSocketAccept(incomingSockfd, insp_ntoa(client.sin6_addr), in_port);
-#else
-                                                       Config->GetIOHook(in_port)->OnRawSocketAccept(incomingSockfd, insp_ntoa(client.sin_addr), in_port);
-#endif
-                                               }
-                                               catch (ModuleException& modexcept)
-                                               {
-                                                       this->Log(DEBUG,"Module exception cought: %s",modexcept.GetReason());
-                                               }
-                                       }
-                                       stats->statsAccept++;
-#ifdef IPV6
-                                       this->Log(DEBUG,"Add ipv6 client");
-                                       userrec::AddClient(this, incomingSockfd, in_port, false, client.sin6_addr);
-#else
-                                       this->Log(DEBUG,"Add ipv4 client");
-                                       userrec::AddClient(this, incomingSockfd, in_port, false, client.sin_addr);
-#endif
-                                       this->Log(DEBUG,"Adding client on port %d fd=%d",in_port,incomingSockfd);
-                               }
-                               else
-                               {
-                                       this->Log(DEBUG,"Accept failed on fd %d: %s",incomingSockfd,strerror(errno));
-                                       shutdown(incomingSockfd,2);
-                                       close(incomingSockfd);
-                                       stats->statsRefused++;
-                               }
-                       break;
-
-                       default:
-                               /* Something went wrong if we're in here.
-                                * In fact, so wrong, im not quite sure
-                                * what we would do, so for now, its going
-                                * to safely do bugger all.
-                                */
-                               this->Log(DEBUG,"Type: X_WHAT_THE_FUCK_BBQ: fd=%d",activefds[activefd]);
-                               SE->DelFd(activefds[activefd]);
-                       break;
-               }
-       }
+       SE->DispatchEvents();
 }
 
 bool InspIRCd::IsIdent(const char* n)
@@ -982,3 +783,71 @@ time_t InspIRCd::Time()
        return TIME;
 }
 
+bool FileLogger::Readable()
+{
+       return false;
+}
+
+void FileLogger::HandleEvent(EventType et)
+{
+       this->WriteLogLine("");
+       ServerInstance->SE->DelFd(this);
+}
+
+void FileLogger::WriteLogLine(const std::string &line)
+{
+       if (line.length())
+               buffer.append(line);
+
+       if (log)
+       {
+               int written = fprintf(log,"%s",buffer.c_str());
+               if ((written >= 0) && (written < (int)buffer.length()))
+               {
+                       buffer.erase(0, buffer.length());
+                       ServerInstance->SE->AddFd(this);
+               }
+               else if (written == -1)
+               {
+                       if (errno == EAGAIN)
+                               ServerInstance->SE->AddFd(this);
+               }
+               else
+               {
+                       /* Wrote the whole buffer, and no need for write callback */
+                       buffer = "";
+               }
+       }
+       if (writeops++ % 20)
+       {
+               fflush(log);
+       }
+}
+
+void FileLogger::Close()
+{
+       if (log)
+       {
+               int flags = fcntl(fileno(log), F_GETFL, 0);
+               fcntl(fileno(log), F_SETFL, flags ^ O_NONBLOCK);
+               if (buffer.size())
+                       fprintf(log,"%s",buffer.c_str());
+               fflush(log);
+               fclose(log);
+       }
+       buffer = "";
+       ServerInstance->SE->DelFd(this);
+}
+
+FileLogger::FileLogger(InspIRCd* Instance, FILE* logfile) : ServerInstance(Instance), log(logfile), writeops(0)
+{
+       irc::sockets::NonBlocking(fileno(log));
+       this->SetFd(fileno(log));
+       buffer = "";
+}
+
+FileLogger::~FileLogger()
+{
+       this->Close();
+}
+