]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/socket.cpp
Tidy up strlens which are not required
[user/henk/code/inspircd.git] / src / socket.cpp
index 04a4f5f15336aa6d78aad2cb179edeb3772ca776..4bf9dc30b96aecc55daee0f2c5b5810a709803b0 100644 (file)
@@ -3,13 +3,13 @@
  *       +------------------------------------+
  *
  *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
- *                       E-mail:
- *                <brain@chatspike.net>
- *               <Craig@chatspike.net>
+ *                    E-mail:
+ *             <brain@chatspike.net>
+ *               <Craig@chatspike.net>
  *     
  * Written by Craig Edwards, Craig McLure, and others.
  * This program is free but copyrighted software; see
- *            the file COPYING for details.
+ *         the file COPYING for details.
  *
  * ---------------------------------------------------
  */
 #include "configreader.h"
 #include "socket.h"
 #include "inspircd.h"
-#include "inspstring.h"
-#include "helperfuncs.h"
 #include "socketengine.h"
 #include "wildcard.h"
-#include "message.h"
 
-extern InspIRCd* ServerInstance;
-extern ServerConfig* Config;
-extern time_t TIME;
+using namespace std;
+using namespace irc::sockets;
 
 /* Used when comparing CIDR masks for the modulus bits left over.
  * A lot of ircd's seem to do this:
@@ -43,8 +39,77 @@ const char inverted_bits[8] = {      0x00, /* 00000000 - 0 bits - never actually used
                                0xFE  /* 11111110 - 7 bits */
 };
 
+
+ListenSocket::ListenSocket(InspIRCd* Instance, int sockfd, insp_sockaddr client, insp_sockaddr server, int port, char* addr) : ServerInstance(Instance)
+{
+       this->SetFd(sockfd);
+       Instance->Log(DEBUG,"Binding to port %s:%d",addr,port);
+       if (!Instance->BindSocket(this->fd,client,server,port,addr))
+       {
+               Instance->Log(DEBUG,"Binding failed!");
+               this->fd = -1;
+       }
+}
+
+void ListenSocket::HandleEvent(EventType et)
+{
+       insp_sockaddr sock_us;  // our port number
+       socklen_t uslen;        // length of our port number
+       insp_sockaddr client;
+       socklen_t length;
+       int incomingSockfd, in_port;
+
+       ServerInstance->Log(DEBUG,"Handle ListenSocket event");
+
+       uslen = sizeof(sock_us);
+       length = sizeof(client);
+       incomingSockfd = accept (this->GetFd(),(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
+               ServerInstance->Log(DEBUG,"Accepted socket %d",incomingSockfd);
+               NonBlocking(incomingSockfd);
+               if (ServerInstance->Config->GetIOHook(in_port))
+               {
+                       try
+                       {
+#ifdef IPV6
+                               ServerInstance->Config->GetIOHook(in_port)->OnRawSocketAccept(incomingSockfd, insp_ntoa(client.sin6_addr), in_port);
+#else
+                               ServerInstance->Config->GetIOHook(in_port)->OnRawSocketAccept(incomingSockfd, insp_ntoa(client.sin_addr), in_port);
+#endif
+                       }
+                       catch (ModuleException& modexcept)
+                       {
+                               ServerInstance->Log(DEBUG,"Module exception cought: %s",modexcept.GetReason());
+                       }
+               }
+               ServerInstance->stats->statsAccept++;
+#ifdef IPV6
+               ServerInstance->Log(DEBUG,"Add ipv6 client");
+               userrec::AddClient(ServerInstance, incomingSockfd, in_port, false, client.sin6_addr);
+#else
+               ServerInstance->Log(DEBUG,"Add ipv4 client");
+               userrec::AddClient(ServerInstance, incomingSockfd, in_port, false, client.sin_addr);
+#endif
+               ServerInstance->Log(DEBUG,"Adding client on port %d fd=%d",in_port,incomingSockfd);
+       }
+       else
+       {
+               ServerInstance->Log(DEBUG,"Accept failed on fd %d: %s",incomingSockfd,strerror(errno));
+               shutdown(incomingSockfd,2);
+               close(incomingSockfd);
+               ServerInstance->stats->statsRefused++;
+       }
+}
+
 /* Match raw bytes using CIDR bit matching, used by higher level MatchCIDR() */
-bool MatchCIDRBits(unsigned char* address, unsigned char* mask, unsigned int mask_bits)
+bool irc::sockets::MatchCIDRBits(unsigned char* address, unsigned char* mask, unsigned int mask_bits)
 {
        unsigned int modulus = mask_bits % 8; /* Number of whole bytes in the mask */
        unsigned int divisor = mask_bits / 8; /* Remaining bits in the mask after whole bytes are dealt with */
@@ -64,7 +129,7 @@ bool MatchCIDRBits(unsigned char* address, unsigned char* mask, unsigned int mas
 }
 
 /* Match CIDR, but dont attempt to match() against leading *!*@ sections */
-bool MatchCIDR(const char* address, const char* cidr_mask)
+bool irc::sockets::MatchCIDR(const char* address, const char* cidr_mask)
 {
        return MatchCIDR(address, cidr_mask, false);
 }
@@ -76,7 +141,7 @@ bool MatchCIDR(const char* address, const char* cidr_mask)
  * This will also attempt to match any leading usernames or nicknames on the mask, using
  * match(), when match_with_username is true.
  */
-bool MatchCIDR(const char* address, const char* cidr_mask, bool match_with_username)
+bool irc::sockets::MatchCIDR(const char* address, const char* cidr_mask, bool match_with_username)
 {
        unsigned char addr_raw[16];
        unsigned char mask_raw[16];
@@ -150,6 +215,7 @@ bool MatchCIDR(const char* address, const char* cidr_mask, bool match_with_usern
        else
        {
                /* No 'number of bits' field! */
+               free(mask);
                return false;
        }
 
@@ -209,11 +275,24 @@ bool MatchCIDR(const char* address, const char* cidr_mask, bool match_with_usern
        return MatchCIDRBits(addr_raw, mask_raw, bits);
 }
 
+inline void irc::sockets::Blocking(int s)
+{
+       int flags = fcntl(s, F_GETFL, 0);
+       fcntl(s, F_SETFL, flags ^ O_NONBLOCK);
+}
+
+inline void irc::sockets::NonBlocking(int s)
+{
+       int flags = fcntl(s, F_GETFL, 0);
+       fcntl(s, F_SETFL, flags | O_NONBLOCK);
+}
+
+
 /** This will bind a socket to a port. It works for UDP/TCP.
  * It can only bind to IP addresses, if you wish to bind to hostnames
  * you should first resolve them using class 'Resolver'.
  */ 
-bool BindSocket(int sockfd, insp_sockaddr client, insp_sockaddr server, int port, char* addr)
+bool InspIRCd::BindSocket(int sockfd, insp_sockaddr client, insp_sockaddr server, int port, char* addr)
 {
        memset(&server,0,sizeof(server));
        insp_inaddr addy;
@@ -223,7 +302,7 @@ bool BindSocket(int sockfd, insp_sockaddr client, insp_sockaddr server, int port
 
        if ((*addr) && (insp_aton(addr,&addy) < 1))
        {
-               log(DEBUG,"Invalid IP '%s' given to BindSocket()", addr);
+               this->Log(DEBUG,"Invalid IP '%s' given to BindSocket()", addr);
                return false;;
        }
 
@@ -259,10 +338,10 @@ bool BindSocket(int sockfd, insp_sockaddr client, insp_sockaddr server, int port
        }
        else
        {
-               log(DEBUG,"Bound port %s:%d",*addr ? addr : "*",port);
+               this->Log(DEBUG,"Bound port %s:%d",*addr ? addr : "*",port);
                if (listen(sockfd, Config->MaxConn) == -1)
                {
-                       log(DEFAULT,"ERROR in listen(): %s",strerror(errno));
+                       this->Log(DEFAULT,"ERROR in listen(): %s",strerror(errno));
                        return false;
                }
                else
@@ -275,7 +354,7 @@ bool BindSocket(int sockfd, insp_sockaddr client, insp_sockaddr server, int port
 
 
 // Open a TCP Socket
-int OpenTCPSocket()
+int irc::sockets::OpenTCPSocket()
 {
        int sockfd;
        int on = 1;
@@ -283,8 +362,7 @@ int OpenTCPSocket()
   
        if ((sockfd = socket (AF_FAMILY, SOCK_STREAM, 0)) < 0)
        {
-               log(DEFAULT,"Error creating TCP socket: %s",strerror(errno));
-               return (ERROR);
+               return ERROR;
        }
        else
        {
@@ -297,9 +375,10 @@ int OpenTCPSocket()
        }
 }
 
-bool HasPort(int port, char* addr)
+/* XXX: Probably belongs in class InspIRCd */
+bool InspIRCd::HasPort(int port, char* addr)
 {
-       for (unsigned long count = 0; count < ServerInstance->stats->BoundPortCount; count++)
+       for (unsigned long count = 0; count < stats->BoundPortCount; count++)
        {
                if ((port == Config->ports[count]) && (!strcasecmp(Config->addrs[count],addr)))
                {
@@ -309,7 +388,8 @@ bool HasPort(int port, char* addr)
        return false;
 }
 
-int BindPorts(bool bail)
+/* XXX: Probably belongs in class InspIRCd */
+int InspIRCd::BindPorts(bool bail)
 {
        char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
        insp_sockaddr client, server;
@@ -318,8 +398,8 @@ int BindPorts(bool bail)
 
        if (!bail)
        {
-               int InitialPortCount = ServerInstance->stats->BoundPortCount;
-               log(DEBUG,"Initial port count: %d",InitialPortCount);
+               int InitialPortCount = stats->BoundPortCount;
+               this->Log(DEBUG,"Initial port count: %d",InitialPortCount);
 
                for (int count = 0; count < Config->ConfValueEnum(Config->config_data, "bind"); count++)
                {
@@ -336,40 +416,46 @@ int BindPorts(bool bail)
 
                                strlcpy(Config->addrs[clientportcount+InitialPortCount],Addr,256);
                                clientportcount++;
-                               log(DEBUG,"NEW binding %s:%s [%s] from config",Addr,configToken, Type);
+                               this->Log(DEBUG,"NEW binding %s:%s [%s] from config",Addr,configToken, Type);
                        }
                }
                int PortCount = clientportcount;
                if (PortCount)
                {
+                       BoundPortCount = stats->BoundPortCount;
                        for (int count = InitialPortCount; count < InitialPortCount + PortCount; count++)
                        {
-                               if ((Config->openSockfd[count] = OpenTCPSocket()) == ERROR)
+                               int fd = OpenTCPSocket();
+                               if (fd == ERROR)
                                {
-                                       log(DEBUG,"Bad fd %d binding port [%s:%d]",Config->openSockfd[count],Config->addrs[count],Config->ports[count]);
+                                       this->Log(DEBUG,"Bad fd %d binding port [%s:%d]",fd,Config->addrs[count],Config->ports[count]);
                                }
                                else
                                {
-                                       if (!BindSocket(Config->openSockfd[count],client,server,Config->ports[count],Config->addrs[count]))
-                                       {
-                                               log(DEFAULT,"Failed to bind port [%s:%d]: %s",Config->addrs[count],Config->ports[count],strerror(errno));
-                                       }
-                                       else
+                                       Config->openSockfd[BoundPortCount] = new ListenSocket(this,fd,client,server,Config->ports[count],Config->addrs[count]);
+                                       if (Config->openSockfd[BoundPortCount]->GetFd() > -1)
                                        {
-                                               /* Associate the new open port with a slot in the socket engine */
-                                               if (Config->openSockfd[count] > -1)
+                                               if (!SE->AddFd(Config->openSockfd[BoundPortCount]))
                                                {
-                                                       ServerInstance->SE->AddFd(Config->openSockfd[count],true,X_LISTEN);
-                                                       BoundPortCount++;
+                                                       this->Log(DEFAULT,"ERK! Failed to add listening port to socket engine!");
+                                                       shutdown(Config->openSockfd[BoundPortCount]->GetFd(),2);
+                                                       close(Config->openSockfd[BoundPortCount]->GetFd());
+                                                       delete Config->openSockfd[BoundPortCount];
                                                }
+                                               else
+                                                       BoundPortCount++;
                                        }
+                                       /*if (!BindSocket(Config->openSockfd[count],client,server,Config->ports[count],Config->addrs[count]))
+                                       {
+                                               this->Log(DEFAULT,"Failed to bind port [%s:%d]: %s",Config->addrs[count],Config->ports[count],strerror(errno));
+                                       }*/
                                }
                        }
                        return InitialPortCount + BoundPortCount;
                }
                else
                {
-                       log(DEBUG,"There is nothing new to bind!");
+                       this->Log(DEBUG,"There is nothing new to bind!");
                }
                return InitialPortCount;
        }
@@ -394,7 +480,7 @@ int BindPorts(bool bail)
 
                        strlcpy(Config->addrs[clientportcount],Addr,256);
                        clientportcount++;
-                       log(DEBUG,"Binding %s:%s [%s] from config",Addr,configToken, Type);
+                       this->Log(DEBUG,"Binding %s:%s [%s] from config",Addr,configToken, Type);
                }
        }
 
@@ -402,34 +488,35 @@ int BindPorts(bool bail)
 
        for (int count = 0; count < PortCount; count++)
        {
-               if ((Config->openSockfd[BoundPortCount] = OpenTCPSocket()) == ERROR)
+               int fd = OpenTCPSocket();
+               if (fd == ERROR)
                {
-                       log(DEBUG,"Bad fd %d binding port [%s:%d]",Config->openSockfd[BoundPortCount],Config->addrs[count],Config->ports[count]);
+                       this->Log(DEBUG,"Bad fd %d binding port [%s:%d]",fd,Config->addrs[count],Config->ports[count]);
                }
                else
                {
-                       if (!BindSocket(Config->openSockfd[BoundPortCount],client,server,Config->ports[count],Config->addrs[count]))
+                       Config->openSockfd[BoundPortCount] = new ListenSocket(this,fd,client,server,Config->ports[count],Config->addrs[count]);
+                       if (Config->openSockfd[BoundPortCount]->GetFd() > -1)
                        {
-                               log(DEFAULT,"Failed to bind port [%s:%d]: %s",Config->addrs[count],Config->ports[count],strerror(errno));
-                       }
-                       else
-                       {
-                               /* well we at least bound to one socket so we'll continue */
                                BoundPortCount++;
                        }
+                       /*if (!BindSocket(Config->openSockfd[BoundPortCount],client,server,Config->ports[count],Config->addrs[count]))
+                       {
+                               this->Log(DEFAULT,"Failed to bind port [%s:%d]: %s",Config->addrs[count],Config->ports[count],strerror(errno));
+                       }*/
                }
        }
        return BoundPortCount;
 }
 
-const char* insp_ntoa(insp_inaddr n)
+const char* irc::sockets::insp_ntoa(insp_inaddr n)
 {
        static char buf[1024];
        inet_ntop(AF_FAMILY, &n, buf, sizeof(buf));
        return buf;
 }
 
-int insp_aton(const char* a, insp_inaddr* n)
+int irc::sockets::insp_aton(const char* a, insp_inaddr* n)
 {
        return inet_pton(AF_FAMILY, a, n);
 }