]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/socket.cpp
Remove unneeded ProtocolInterface::Introduce
[user/henk/code/inspircd.git] / src / socket.cpp
index c02345fe931c6af7342bf3dea90c1cb20a9e83e1..c426f16e696ea8bdc7b163e228ae05168045b14c 100644 (file)
@@ -2,8 +2,8 @@
  *       | Inspire Internet Relay Chat Daemon |
  *       +------------------------------------+
  *
- *  InspIRCd: (C) 2002-2008 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
+ * See: http://wiki.inspircd.org/Credits
  *
  * This program is free but copyrighted software; see
  *            the file COPYING for details.
  * ---------------------------------------------------
  */
 
-/* $Core: libIRCDsocket */
+/* $Core */
 
 #include "inspircd.h"
 #include "socket.h"
 #include "socketengine.h"
-
-/* Private static member data must be initialized in this manner */
-unsigned int ListenSocket::socketcount = 0;
-sockaddr* ListenSocket::sock_us = NULL;
-sockaddr* ListenSocket::client = NULL;
-sockaddr* ListenSocket::raddr = NULL;
-
-ListenSocket::ListenSocket(InspIRCd* Instance, int port, char* addr) : ServerInstance(Instance), desc("plaintext"), bind_addr(addr), bind_port(port)
-{
-       this->SetFd(irc::sockets::OpenTCPSocket(addr));
-       if (this->GetFd() > -1)
-       {
-               if (!Instance->BindSocket(this->fd,port,addr))
-                       this->fd = -1;
-#ifdef IPV6
-               if ((!*addr) || (strchr(addr,':')))
-                       this->family = AF_INET6;
-               else
-#endif
-               this->family = AF_INET;
-               Instance->SE->AddFd(this);
-       }
-       /* Saves needless allocations */
-       if (socketcount == 0)
-       {
-               /* All instances of ListenSocket share these, so reference count it */
-               ServerInstance->Logs->Log("SOCKET", DEBUG,"Allocate sockaddr structures");
-               sock_us = new sockaddr[2];
-               client = new sockaddr[2];
-               raddr = new sockaddr[2];
-       }
-       socketcount++;
-}
-
-ListenSocket::~ListenSocket()
-{
-       if (this->GetFd() > -1)
-       {
-               ServerInstance->SE->DelFd(this);
-               ServerInstance->Logs->Log("SOCKET", DEBUG,"Shut down listener on fd %d", this->fd);
-               if (ServerInstance->SE->Shutdown(this, 2) || ServerInstance->SE->Close(this))
-                       ServerInstance->Logs->Log("SOCKET", DEBUG,"Failed to cancel listener: %s", strerror(errno));
-               this->fd = -1;
-       }
-       socketcount--;
-       if (socketcount == 0)
-       {
-               delete[] sock_us;
-               delete[] client;
-               delete[] raddr;
-       }
-}
-
-void ListenSocket::HandleEvent(EventType e, int err)
-{
-       switch (e)
-       {
-               case EVENT_ERROR:
-                       ServerInstance->Logs->Log("SOCKET",DEFAULT,"ListenSocket::HandleEvent() received a socket engine error event! well shit! '%s'", strerror(err));
-               break;
-               case EVENT_WRITE:
-                       ServerInstance->Logs->Log("SOCKET",DEBUG,"*** BUG *** ListenSocket::HandleEvent() got a WRITE event!!!");
-               break;
-               case EVENT_READ:
-               {
-                       ServerInstance->Logs->Log("SOCKET",DEBUG,"HandleEvent for Listensoket");
-                       socklen_t uslen, length;                // length of our port number
-                       int incomingSockfd, in_port;
-
-#ifdef IPV6
-                       if (this->family == AF_INET6)
-                       {
-                               uslen = sizeof(sockaddr_in6);
-                               length = sizeof(sockaddr_in6);
-                       }
-                       else
-#endif
-                       {
-                               uslen = sizeof(sockaddr_in);
-                               length = sizeof(sockaddr_in);
-                       }
-
-                       incomingSockfd = ServerInstance->SE->Accept(this, (sockaddr*)client, &length);
-
-                       if ((incomingSockfd > -1) && (!ServerInstance->SE->GetSockName(this, sock_us, &uslen)))
-                       {
-                               char buf[MAXBUF];
-                               char target[MAXBUF];    
-
-                               *target = *buf = '\0';
-
-#ifdef IPV6
-                               if (this->family == AF_INET6)
-                               {
-                                       in_port = ntohs(((sockaddr_in6*)sock_us)->sin6_port);
-                                       inet_ntop(AF_INET6, &((const sockaddr_in6*)client)->sin6_addr, buf, sizeof(buf));
-                                       socklen_t raddrsz = sizeof(sockaddr_in6);
-                                       if (getsockname(incomingSockfd, (sockaddr*) raddr, &raddrsz) == 0)
-                                               inet_ntop(AF_INET6, &((const sockaddr_in6*)raddr)->sin6_addr, target, sizeof(target));
-                                       else
-                                               ServerInstance->Logs->Log("SOCKET", DEBUG, "Can't get peername: %s", strerror(errno));
-                               }
-                               else
-#endif
-                               {
-                                       inet_ntop(AF_INET, &((const sockaddr_in*)client)->sin_addr, buf, sizeof(buf));
-                                       in_port = ntohs(((sockaddr_in*)sock_us)->sin_port);
-                                       socklen_t raddrsz = sizeof(sockaddr_in);
-                                       if (getsockname(incomingSockfd, (sockaddr*) raddr, &raddrsz) == 0)
-                                               inet_ntop(AF_INET, &((const sockaddr_in*)raddr)->sin_addr, target, sizeof(target));
-                                       else
-                                               ServerInstance->Logs->Log("SOCKET", DEBUG, "Can't get peername: %s", strerror(errno));
-                               }
-                               ServerInstance->SE->NonBlocking(incomingSockfd);
-                               ServerInstance->stats->statsAccept++;
-                               ServerInstance->Users->AddUser(ServerInstance, incomingSockfd, in_port, false, this->family, client, target);   
-                       }
-                       else
-                       {
-                               ServerInstance->SE->Shutdown(incomingSockfd, 2);
-                               ServerInstance->SE->Close(incomingSockfd);
-                               ServerInstance->stats->statsRefused++;
-                       }
-               }
-               break;
-       }
-}
+using irc::sockets::sockaddrs;
 
 /** 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 InspIRCd::BindSocket(int sockfd, int port, const char* addr, bool dolisten)
 {
-       /* We allocate 2 of these, because sockaddr_in6 is larger than sockaddr (ugh, hax) */
-       sockaddr* servaddr = new sockaddr[2];
-       memset(servaddr,0,sizeof(sockaddr)*2);
-
-       int ret, size;
+       sockaddrs servaddr;
+       int ret;
 
        if (*addr == '*')
                addr = "";
 
-#ifdef IPV6
        if (*addr)
        {
-               /* There is an address here. Is it ipv6? */
-               if (strchr(addr,':'))
-               {
-                       /* Yes it is */
-                       in6_addr addy;
-                       if (inet_pton(AF_INET6, addr, &addy) < 1)
-                       {
-                               delete[] servaddr;
-                               return false;
-                       }
-
-                       ((sockaddr_in6*)servaddr)->sin6_family = AF_INET6;
-                       memcpy(&(((sockaddr_in6*)servaddr)->sin6_addr), &addy, sizeof(in6_addr));
-                       ((sockaddr_in6*)servaddr)->sin6_port = htons(port);
-                       size = sizeof(sockaddr_in6);
-               }
-               else
-               {
-                       /* No, its not */
-                       in_addr addy;
-                       if (inet_pton(AF_INET, addr, &addy) < 1)
-                       {
-                               delete[] servaddr;
-                               return false;
-                       }
-
-                       ((sockaddr_in*)servaddr)->sin_family = AF_INET;
-                       ((sockaddr_in*)servaddr)->sin_addr = addy;
-                       ((sockaddr_in*)servaddr)->sin_port = htons(port);
-                       size = sizeof(sockaddr_in);
-               }
+               irc::sockets::aptosa(addr, port, &servaddr);
        }
        else
        {
@@ -201,45 +41,27 @@ bool InspIRCd::BindSocket(int sockfd, int port, const char* addr, bool dolisten)
                        /* Port -1: Means UDP IPV4 port binding - Special case
                         * used by DNS engine.
                         */
-                       ((sockaddr_in*)servaddr)->sin_family = AF_INET;
-                       ((sockaddr_in*)servaddr)->sin_addr.s_addr = htonl(INADDR_ANY);
-                       ((sockaddr_in*)servaddr)->sin_port = 0;
-                       size = sizeof(sockaddr_in);
+                       servaddr.in4.sin_family = AF_INET;
+                       servaddr.in4.sin_addr.s_addr = htonl(INADDR_ANY);
+                       servaddr.in4.sin_port = 0;
                }
                else
                {
-                       /* Theres no address here, default to ipv6 bind to all */
-                       ((sockaddr_in6*)servaddr)->sin6_family = AF_INET6;
-                       memset(&(((sockaddr_in6*)servaddr)->sin6_addr), 0, sizeof(in6_addr));
-                       ((sockaddr_in6*)servaddr)->sin6_port = htons(port);
-                       size = sizeof(sockaddr_in6);
-               }
-       }
+                       /* No address */
+#ifdef IPV6
+                       /* Default to ipv6 bind to all */
+                       servaddr.in6.sin6_family = AF_INET6;
+                       servaddr.in6.sin6_port = htons(port);
+                       memset(&servaddr.in6.sin6_addr, 0, sizeof(servaddr.in6.sin6_addr));
 #else
-       /* If we aren't built with ipv6, the choice becomes simple */
-       ((sockaddr_in*)servaddr)->sin_family = AF_INET;
-       if (*addr)
-       {
-               /* There is an address here. */
-               in_addr addy;
-               if (inet_pton(AF_INET, addr, &addy) < 1)
-               {
-                       delete[] servaddr;
-                       return false;
+                       /* Bind ipv4 to all */
+                       servaddr.in4.sin_family = AF_INET;
+                       servaddr.in4.sin_addr.s_addr = htonl(INADDR_ANY);
+                       servaddr.in4.sin_port = htons(port);
+#endif
                }
-               ((sockaddr_in*)servaddr)->sin_addr = addy;
        }
-       else
-       {
-               /* Bind ipv4 to all */
-               ((sockaddr_in*)servaddr)->sin_addr.s_addr = htonl(INADDR_ANY);
-       }
-       /* Bind ipv4 port number */
-       ((sockaddr_in*)servaddr)->sin_port = htons(port);
-       size = sizeof(sockaddr_in);
-#endif
-       ret = SE->Bind(sockfd, servaddr, size);
-       delete[] servaddr;
+       ret = SE->Bind(sockfd, &servaddr.sa, sa_size(servaddr));
 
        if (ret < 0)
        {
@@ -270,55 +92,61 @@ bool InspIRCd::BindSocket(int sockfd, int port, const char* addr, bool dolisten)
 }
 
 // Open a TCP Socket
-int irc::sockets::OpenTCPSocket(char* addr, int socktype)
+int irc::sockets::OpenTCPSocket(const char* addr, int socktype)
 {
        int sockfd;
        int on = 1;
        addr = addr;
        struct linger linger = { 0, 0 };
+       if (!*addr)
+       {
 #ifdef IPV6
-       if (strchr(addr,':') || (!*addr))
+               sockfd = socket (PF_INET6, socktype, 0);
+               if (sockfd < 0)
+#endif
+                       sockfd = socket (PF_INET, socktype, 0);
+       }
+       else if (strchr(addr,':'))
                sockfd = socket (PF_INET6, socktype, 0);
        else
                sockfd = socket (PF_INET, socktype, 0);
+
        if (sockfd < 0)
-#else
-       if ((sockfd = socket (PF_INET, socktype, 0)) < 0)
-#endif
        {
                return ERROR;
        }
        else
        {
-               setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (char*)&on, sizeof(on));
+               setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
                /* This is BSD compatible, setting l_onoff to 0 is *NOT* http://web.irc.org/mla/ircd-dev/msg02259.html */
                linger.l_onoff = 1;
                linger.l_linger = 1;
-               setsockopt(sockfd, SOL_SOCKET, SO_LINGER, (char*)&linger,sizeof(linger));
+               setsockopt(sockfd, SOL_SOCKET, SO_LINGER, &linger, sizeof(linger));
                return (sockfd);
        }
 }
 
-int InspIRCd::BindPorts(bool, int &ports_found, FailedPortList &failed_ports)
+// XXX: it would be VERY nice to genericize this so all listen stuff (server/client) could use the one function. -- w00t
+int InspIRCd::BindPorts(FailedPortList &failed_ports)
 {
        char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
        int bound = 0;
-       bool started_with_nothing = (Config->ports.size() == 0);
+       bool started_with_nothing = (ports.size() == 0);
        std::vector<std::pair<std::string, int> > old_ports;
 
        /* XXX: Make a copy of the old ip/port pairs here */
-       for (std::vector<ListenSocket*>::iterator o = Config->ports.begin(); o != Config->ports.end(); ++o)
+       for (std::vector<ListenSocketBase *>::iterator o = ports.begin(); o != ports.end(); ++o)
                old_ports.push_back(make_pair((*o)->GetIP(), (*o)->GetPort()));
 
-       for (int count = 0; count < Config->ConfValueEnum(Config->config_data, "bind"); count++)
+       for (int count = 0; count < Config->ConfValueEnum("bind"); count++)
        {
-               Config->ConfValue(Config->config_data, "bind", "port", count, configToken, MAXBUF);
-               Config->ConfValue(Config->config_data, "bind", "address", count, Addr, MAXBUF);
-               Config->ConfValue(Config->config_data, "bind", "type", count, Type, MAXBUF);
-               
+               Config->ConfValue("bind", "port", count, configToken, MAXBUF);
+               Config->ConfValue("bind", "address", count, Addr, MAXBUF);
+               Config->ConfValue("bind", "type", count, Type, MAXBUF);
+
                if (strncmp(Addr, "::ffff:", 7) == 0)
                        this->Logs->Log("SOCKET",DEFAULT, "Using 4in6 (::ffff:) isn't recommended. You should bind IPv4 addresses directly instead.");
-               
+
                if ((!*Type) || (!strcmp(Type,"clients")))
                {
                        irc::portparser portrange(configToken, false);
@@ -329,7 +157,7 @@ int InspIRCd::BindPorts(bool, int &ports_found, FailedPortList &failed_ports)
                                        *Addr = 0;
 
                                bool skip = false;
-                               for (std::vector<ListenSocket*>::iterator n = Config->ports.begin(); n != Config->ports.end(); ++n)
+                               for (std::vector<ListenSocketBase *>::iterator n = ports.begin(); n != ports.end(); ++n)
                                {
                                        if (((*n)->GetIP() == Addr) && ((*n)->GetPort() == portno))
                                        {
@@ -347,17 +175,16 @@ int InspIRCd::BindPorts(bool, int &ports_found, FailedPortList &failed_ports)
                                }
                                if (!skip)
                                {
-                                       ListenSocket* ll = new ListenSocket(this, portno, Addr);
+                                       ClientListenSocket *ll = new ClientListenSocket(this, portno, Addr);
                                        if (ll->GetFd() > -1)
                                        {
                                                bound++;
-                                               Config->ports.push_back(ll);
+                                               ports.push_back(ll);
                                        }
                                        else
                                        {
                                                failed_ports.push_back(std::make_pair((*Addr ? Addr : "*") + std::string(":") + ConvToStr(portno), strerror(errno)));
                                        }
-                                       ports_found++;
                                }
                        }
                }
@@ -368,13 +195,13 @@ int InspIRCd::BindPorts(bool, int &ports_found, FailedPortList &failed_ports)
        {
                for (size_t k = 0; k < old_ports.size(); ++k)
                {
-                       for (std::vector<ListenSocket*>::iterator n = Config->ports.begin(); n != Config->ports.end(); ++n)
+                       for (std::vector<ListenSocketBase *>::iterator n = ports.begin(); n != ports.end(); ++n)
                        {
                                if (((*n)->GetIP() == old_ports[k].first) && ((*n)->GetPort() == old_ports[k].second))
                                {
                                        this->Logs->Log("SOCKET",DEFAULT,"Port binding %s:%d was removed from the config file, closing.", old_ports[k].first.c_str(), old_ports[k].second);
                                        delete *n;
-                                       Config->ports.erase(n);
+                                       ports.erase(n);
                                        break;
                                }
                        }
@@ -384,16 +211,61 @@ int InspIRCd::BindPorts(bool, int &ports_found, FailedPortList &failed_ports)
        return bound;
 }
 
-const char* irc::sockets::insp_ntoa(insp_inaddr n)
+bool irc::sockets::aptosa(const char* addr, int port, irc::sockets::sockaddrs* sa)
 {
-       static char buf[1024];
-       inet_ntop(AF_FAMILY, &n, buf, sizeof(buf));
-       return buf;
+       memset(sa, 0, sizeof(*sa));
+       if (!addr || !*addr)
+       {
+#ifdef IPV6
+               sa->in6.sin6_family = AF_INET6;
+               sa->in6.sin6_port = htons(port);
+#else
+               sa->in4.sin_family = AF_INET;
+               sa->in4.sin_port = htons(port);
+#endif
+               return true;
+       }
+       else if (inet_pton(AF_INET, addr, &sa->in4.sin_addr) > 0)
+       {
+               sa->in4.sin_family = AF_INET;
+               sa->in4.sin_port = htons(port);
+               return true;
+       }
+       else if (inet_pton(AF_INET6, addr, &sa->in6.sin6_addr) > 0)
+       {
+               sa->in6.sin6_family = AF_INET6;
+               sa->in6.sin6_port = htons(port);
+               return true;
+       }
+       return false;
 }
 
-int irc::sockets::insp_aton(const char* a, insp_inaddr* n)
-{
-       return inet_pton(AF_FAMILY, a, n);
+bool irc::sockets::satoap(const irc::sockets::sockaddrs* sa, std::string& addr, int &port) {
+       char addrv[INET6_ADDRSTRLEN+1];
+       if (sa->sa.sa_family == AF_INET)
+       {
+               if (!inet_ntop(AF_INET, &sa->in4.sin_addr, addrv, sizeof(addrv)))
+                       return false;
+               addr = addrv;
+               port = ntohs(sa->in4.sin_port);
+               return true;
+       }
+       else if (sa->sa.sa_family == AF_INET6)
+       {
+               if (!inet_ntop(AF_INET6, &sa->in6.sin6_addr, addrv, sizeof(addrv)))
+                       return false;
+               addr = addrv;
+               port = ntohs(sa->in6.sin6_port);
+               return true;
+       }
+       return false;
 }
 
-
+int irc::sockets::sa_size(irc::sockets::sockaddrs& sa)
+{
+       if (sa.sa.sa_family == AF_INET)
+               return sizeof(sa.in4);
+       if (sa.sa.sa_family == AF_INET6)
+               return sizeof(sa.in6);
+       return 0;
+}