]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/inspsocket.cpp
Remove the need for a bunch of the hard coded arrays/hashes by scanning the src/...
[user/henk/code/inspircd.git] / src / inspsocket.cpp
index cdc0dc26f62623df832c5199074eba773946dda6..f29f233516b41311b01c5883b486bb724fa25e02 100644 (file)
  * ---------------------------------------------------
  */
 
+/* $Core: libIRCDinspsocket */
+
 #include "socket.h"
-#include "configreader.h"
 #include "inspstring.h"
 #include "socketengine.h"
 #include "inspircd.h"
 
 using irc::sockets::OpenTCPSocket;
 
-bool InspSocket::Readable()
+bool BufferedSocket::Readable()
 {
        return ((this->state != I_CONNECTING) && (this->WaitingForWriteEvent == false));
 }
 
-InspSocket::InspSocket(InspIRCd* SI)
+BufferedSocket::BufferedSocket(InspIRCd* SI)
 {
        this->Timeout = NULL;
        this->state = I_DISCONNECTED;
@@ -34,7 +35,7 @@ InspSocket::InspSocket(InspIRCd* SI)
        this->IsIOHooked = false;
 }
 
-InspSocket::InspSocket(InspIRCd* SI, int newfd, const char* ip)
+BufferedSocket::BufferedSocket(InspIRCd* SI, int newfd, const char* ip)
 {
        this->Timeout = NULL;
        this->fd = newfd;
@@ -47,7 +48,7 @@ InspSocket::InspSocket(InspIRCd* SI, int newfd, const char* ip)
                this->Instance->SE->AddFd(this);
 }
 
-InspSocket::InspSocket(InspIRCd* SI, const std::string &ipaddr, int aport, bool listening, unsigned long maxtime, const std::string &connectbindip)
+BufferedSocket::BufferedSocket(InspIRCd* SI, const std::string &ipaddr, int aport, bool listening, unsigned long maxtime, const std::string &connectbindip)
 {
        this->cbindip = connectbindip;
        this->fd = -1;
@@ -79,6 +80,7 @@ InspSocket::InspSocket(InspIRCd* SI, const std::string &ipaddr, int aport, bool
                        else
                        {
                                this->state = I_LISTENING;
+                               this->port = aport;
                                if (this->fd > -1)
                                {
                                        if (!this->Instance->SE->AddFd(this))
@@ -106,23 +108,19 @@ InspSocket::InspSocket(InspIRCd* SI, const std::string &ipaddr, int aport, bool
                                ipvalid = false;
                }
                else
+#endif
                {
                        in_addr n;
                        if (inet_aton(host,&n) < 1)
                                ipvalid = false;
                }
-#else
-               in_addr n;
-               if (inet_aton(host,&n) < 1)
-                       ipvalid = false;
-#endif
                if (!ipvalid)
                {
-                       this->Instance->Log(DEBUG,"BUG: Hostname passed to InspSocket, rather than an IP address!");
+                       this->Instance->Log(DEBUG,"BUG: Hostname passed to BufferedSocket, rather than an IP address!");
+                       this->OnError(I_ERR_CONNECT);
                        this->Close();
                        this->fd = -1;
                        this->state = I_ERROR;
-                       this->OnError(I_ERR_RESOLVE);
                        return;
                }
                else
@@ -131,29 +129,29 @@ InspSocket::InspSocket(InspIRCd* SI, const std::string &ipaddr, int aport, bool
                        timeout_val = maxtime;
                        if (!this->DoConnect())
                        {
+                               this->OnError(I_ERR_CONNECT);
                                this->Close();
                                this->fd = -1;
                                this->state = I_ERROR;
-                               this->OnError(I_ERR_CONNECT);
                                return;
                        }
                }
        }
 }
 
-void InspSocket::WantWrite()
+void BufferedSocket::WantWrite()
 {
        this->Instance->SE->WantWrite(this);
        this->WaitingForWriteEvent = true;
 }
 
-void InspSocket::SetQueues(int nfd)
+void BufferedSocket::SetQueues(int nfd)
 {
        // attempt to increase socket sendq and recvq as high as its possible
        int sendbuf = 32768;
        int recvbuf = 32768;
-       setsockopt(nfd,SOL_SOCKET,SO_SNDBUF,(const void *)&sendbuf,sizeof(sendbuf));
-       setsockopt(nfd,SOL_SOCKET,SO_RCVBUF,(const void *)&recvbuf,sizeof(sendbuf));
+       if(setsockopt(nfd,SOL_SOCKET,SO_SNDBUF,(const char *)&sendbuf,sizeof(sendbuf)) || setsockopt(nfd,SOL_SOCKET,SO_RCVBUF,(const char *)&recvbuf,sizeof(sendbuf)))
+               this->Instance->Log(DEFAULT, "Could not increase SO_SNDBUF/SO_RCVBUF for socket %u", GetFd());
 }
 
 /* Most irc servers require you to specify the ip you want to bind to.
@@ -164,7 +162,7 @@ void InspSocket::SetQueues(int nfd)
  * This is easier to configure when you have a lot of links and a lot
  * of servers to configure.
  */
-bool InspSocket::BindAddr(const std::string &ip)
+bool BufferedSocket::BindAddr(const std::string &ip)
 {
        ConfigReader Conf(this->Instance);
        socklen_t size = sizeof(sockaddr_in);
@@ -180,8 +178,9 @@ bool InspSocket::BindAddr(const std::string &ip)
                std::string IP = ip.empty() ? Conf.ReadValue("bind","address",j) : ip;
                if (!ip.empty() || Conf.ReadValue("bind","type",j) == "servers")
                {
-                       if (!ip.empty() || ((IP != "*") && (IP != "127.0.0.1") && (IP != "") && (IP != "::1")))
+                       if (!ip.empty() || ((IP != "*") && (IP != "127.0.0.1") && (!IP.empty()) && (IP != "::1")))
                        {
+                               /* The [2] is required because we may write a sockaddr_in6 here, and sockaddr_in6 is larger than sockaddr, where sockaddr_in4 is not. */
                                sockaddr* s = new sockaddr[2];
 #ifdef IPV6
                                if (v6)
@@ -189,7 +188,7 @@ bool InspSocket::BindAddr(const std::string &ip)
                                        in6_addr n;
                                        if (inet_pton(AF_INET6, IP.c_str(), &n) > 0)
                                        {
-                                               memcpy(&((sockaddr_in6*)s)->sin6_addr, &n, sizeof(n));
+                                               memcpy(&((sockaddr_in6*)s)->sin6_addr, &n, sizeof(sockaddr_in6));
                                                ((sockaddr_in6*)s)->sin6_port = 0;
                                                ((sockaddr_in6*)s)->sin6_family = AF_INET6;
                                                size = sizeof(sockaddr_in6);
@@ -202,6 +201,7 @@ bool InspSocket::BindAddr(const std::string &ip)
                                        }
                                }
                                else
+#endif
                                {
                                        in_addr n;
                                        if (inet_aton(IP.c_str(), &n) > 0)
@@ -217,23 +217,8 @@ bool InspSocket::BindAddr(const std::string &ip)
                                                continue;
                                        }
                                }
-#else
-                               in_addr n;
-                               if (insp_aton(IP.c_str(), &n) > 0)
-                               {
-                                       ((sockaddr_in*)s)->sin_addr = n;
-                                       ((sockaddr_in*)s)->sin_port = 0;
-                                       ((sockaddr_in*)s)->sin_family = AF_INET;
-                               }
-                               else
-                               {
-                                       delete[] s;
-                                       j++;
-                                       continue;
-                               }
-#endif
 
-                               if (bind(this->fd, s, size) < 0)
+                               if (Instance->SE->Bind(this->fd, s, size) < 0)
                                {
                                        this->state = I_ERROR;
                                        this->OnError(I_ERR_BIND);
@@ -251,8 +236,9 @@ bool InspSocket::BindAddr(const std::string &ip)
        return true;
 }
 
-bool InspSocket::DoConnect()
+bool BufferedSocket::DoConnect()
 {
+       /* The [2] is required because we may write a sockaddr_in6 here, and sockaddr_in6 is larger than sockaddr, where sockaddr_in4 is not. */
        sockaddr* addr = new sockaddr[2];
        socklen_t size = sizeof(sockaddr_in);
 #ifdef IPV6
@@ -273,6 +259,7 @@ bool InspSocket::DoConnect()
                }
        }
        else
+#endif
        {
                this->fd = socket(AF_INET, SOCK_STREAM, 0);
                if (this->fd > -1)
@@ -284,17 +271,6 @@ bool InspSocket::DoConnect()
                        }
                }
        }
-#else
-       this->fd = socket(AF_INET, SOCK_STREAM, 0);
-       if (this->fd > -1)
-       {
-               if (!this->BindAddr(this->cbindip))
-               {
-                       delete[] addr;
-                       return false;
-               }
-       }
-#endif
 
        if (this->fd == -1)
        {
@@ -317,6 +293,7 @@ bool InspSocket::DoConnect()
                }
        }
        else
+#endif
        {
                in_addr addy;
                if (inet_aton(this->host, &addy) > 0)
@@ -326,20 +303,15 @@ bool InspSocket::DoConnect()
                        ((sockaddr_in*)addr)->sin_port = htons(this->port);
                }
        }
-#else
-       in_addr addy;
-       if (inet_aton(this->host, &addy) > 0)
-       {
-               ((sockaddr_in*)addr)->sin_family = AF_INET;
-               ((sockaddr_in*)addr)->sin_addr = addy;
-               ((sockaddr_in*)addr)->sin_port = htons(this->port);
-       }
-#endif
 
-       int flags = fcntl(this->fd, F_GETFL, 0);
-       fcntl(this->fd, F_SETFL, flags | O_NONBLOCK);
+       Instance->SE->NonBlocking(this->fd);
 
-       if (connect(this->fd, (sockaddr*)addr, size) == -1)
+#ifdef WIN32
+       /* UGH for the LOVE OF ZOMBIE JESUS SOMEONE FIX THIS!!!!!!!!!!! */
+       Instance->SE->Blocking(this->fd);
+#endif
+
+       if (Instance->SE->Connect(this, (sockaddr*)addr, size) == -1)
        {
                if (errno != EINPROGRESS)
                {
@@ -352,6 +324,10 @@ bool InspSocket::DoConnect()
                this->Timeout = new SocketTimeout(this->GetFd(), this->Instance, this, timeout_val, this->Instance->Time());
                this->Instance->Timers->AddTimer(this->Timeout);
        }
+#ifdef WIN32
+       /* CRAQ SMOKING STUFF TO BE FIXED */
+       Instance->SE->NonBlocking(this->fd);
+#endif
        this->state = I_CONNECTING;
        if (this->fd > -1)
        {
@@ -368,7 +344,7 @@ bool InspSocket::DoConnect()
 }
 
 
-void InspSocket::Close()
+void BufferedSocket::Close()
 {
        /* Save this, so we dont lose it,
         * otherise on failure, error messages
@@ -388,21 +364,24 @@ void InspSocket::Close()
                                Instance->Log(DEFAULT,"%s threw an exception: %s", modexcept.GetSource(), modexcept.GetReason());
                        }
                }
-               this->OnClose();
-               shutdown(this->fd,2);
-               close(this->fd);
+               Instance->SE->Shutdown(this, 2);
+               if (Instance->SE->Close(this) != -1)
+                       this->OnClose();
+
+               if (Instance->SocketCull.find(this) == Instance->SocketCull.end())
+                       Instance->SocketCull[this] = this;
        }
        errno = save;
 }
 
-std::string InspSocket::GetIP()
+std::string BufferedSocket::GetIP()
 {
        return this->IP;
 }
 
-char* InspSocket::Read()
+char* BufferedSocket::Read()
 {
-       if ((fd < 0) || (fd > MAX_DESCRIPTORS))
+       if (!Instance->SE->BoundsCheckFd(this))
                return NULL;
 
        int n = 0;
@@ -449,7 +428,7 @@ char* InspSocket::Read()
        }
 }
 
-void InspSocket::MarkAsClosed()
+void BufferedSocket::MarkAsClosed()
 {
 }
 
@@ -457,7 +436,7 @@ void InspSocket::MarkAsClosed()
 // It will either write all of the data, or an undefined amount.
 // If an undefined amount is written the connection has failed
 // and should be aborted.
-int InspSocket::Write(const std::string &data)
+int BufferedSocket::Write(const std::string &data)
 {
        /* Try and append the data to the back of the queue, and send it on its way
         */
@@ -466,7 +445,7 @@ int InspSocket::Write(const std::string &data)
        return (!this->FlushWriteBuffer());
 }
 
-bool InspSocket::FlushWriteBuffer()
+bool BufferedSocket::FlushWriteBuffer()
 {
        errno = 0;
        if ((this->fd > -1) && (this->state == I_CONNECTED))
@@ -477,28 +456,11 @@ bool InspSocket::FlushWriteBuffer()
                        {
                                try
                                {
-                                       int result = Instance->Config->GetIOHook(this)->OnRawSocketWrite(this->fd, outbuffer[0].c_str(), outbuffer[0].length());
-                                       if (result > 0)
-                                       {
-                                               if ((unsigned int)result >= outbuffer[0].length())
-                                               {
-                                                       outbuffer.pop_front();
-                                               }
-                                               else
-                                               {
-                                                       std::string temp = outbuffer[0].substr(result);
-                                                       outbuffer[0] = temp;
-                                                       errno = EAGAIN;
-                                               }
-                                       }
-                                       else if (((result == -1) && (errno != EAGAIN)) || (result == 0))
-                                       {
-                                               this->OnError(I_ERR_WRITE);
-                                               this->state = I_ERROR;
-                                               this->Instance->SE->DelFd(this);
-                                               this->Close();
-                                               return true;
-                                       }
+                                       /* XXX: The lack of buffering here is NOT a bug, modules implementing this interface have to
+                                        * implement their own buffering mechanisms
+                                        */
+                                       Instance->Config->GetIOHook(this)->OnRawSocketWrite(this->fd, outbuffer[0].c_str(), outbuffer[0].length());
+                                       outbuffer.pop_front();
                                }
                                catch (CoreException& modexcept)
                                {
@@ -515,7 +477,8 @@ bool InspSocket::FlushWriteBuffer()
                        while (outbuffer.size() && (errno != EAGAIN))
                        {
                                /* Send a line */
-                               int result = write(this->fd,outbuffer[0].c_str(),outbuffer[0].length());
+                               int result = Instance->SE->Send(this, outbuffer[0].c_str(), outbuffer[0].length(), 0);
+
                                if (result > 0)
                                {
                                        if ((unsigned int)result >= outbuffer[0].length())
@@ -539,6 +502,12 @@ bool InspSocket::FlushWriteBuffer()
                                                errno = EAGAIN;
                                        }
                                }
+                               else if (result == 0)
+                               {
+                                       this->Instance->SE->DelFd(this);
+                                       this->Close();
+                                       return true;
+                               }
                                else if ((result == -1) && (errno != EAGAIN))
                                {
                                        this->OnError(I_ERR_WRITE);
@@ -587,14 +556,16 @@ void SocketTimeout::Tick(time_t now)
        this->sock->Timeout = NULL;
 }
 
-bool InspSocket::Poll()
+bool BufferedSocket::Poll()
 {
-       if (this->Instance->SE->GetRef(this->fd) != this)
-               return false;
-
        int incoming = -1;
 
-       if ((fd < 0) || (fd > MAX_DESCRIPTORS))
+#ifndef WINDOWS
+       if (!Instance->SE->BoundsCheckFd(this))
+               return false;
+#endif
+
+       if (Instance->SE->GetRef(this->fd) != this)
                return false;
 
        switch (this->state)
@@ -603,15 +574,19 @@ bool InspSocket::Poll()
                        /* Our socket was in write-state, so delete it and re-add it
                         * in read-state.
                         */
+#ifndef WINDOWS
                        if (this->fd > -1)
                        {
                                this->Instance->SE->DelFd(this);
-                               this->SetState(I_CONNECTED);
                                if (!this->Instance->SE->AddFd(this))
                                        return false;
                        }
+#endif
+                       this->SetState(I_CONNECTED);
+
                        if (Instance->Config->GetIOHook(this))
                        {
+                               Instance->Log(DEBUG,"Hook for raw connect");
                                try
                                {
                                        Instance->Config->GetIOHook(this)->OnRawSocketConnect(this->fd);
@@ -625,6 +600,7 @@ bool InspSocket::Poll()
                break;
                case I_LISTENING:
                {
+                       /* The [2] is required because we may write a sockaddr_in6 here, and sockaddr_in6 is larger than sockaddr, where sockaddr_in4 is not. */
                        sockaddr* client = new sockaddr[2];
                        length = sizeof (sockaddr_in);
                        std::string recvip;
@@ -632,7 +608,7 @@ bool InspSocket::Poll()
                        if ((!*this->host) || strchr(this->host, ':'))
                                length = sizeof(sockaddr_in6);
 #endif
-                       incoming = accept (this->fd, client, &length);
+                       incoming = Instance->SE->Accept(this, client, &length);
 #ifdef IPV6
                        if ((!*this->host) || strchr(this->host, ':'))
                        {
@@ -640,12 +616,10 @@ bool InspSocket::Poll()
                                recvip = inet_ntop(AF_INET6, &((sockaddr_in6*)client)->sin6_addr, buf, sizeof(buf));
                        }
                        else
-                       {
-                               recvip = inet_ntoa(((sockaddr_in*)client)->sin_addr);
-                       }
-#else
-                       recvip = inet_ntoa(((sockaddr_in*)client)->sin_addr);
 #endif
+                       Instance->SE->NonBlocking(incoming);
+
+                       recvip = inet_ntoa(((sockaddr_in*)client)->sin_addr);
                        this->OnIncomingConnection(incoming, (char*)recvip.c_str());
 
                        if (this->IsIOHooked)
@@ -676,31 +650,31 @@ bool InspSocket::Poll()
        return true;
 }
 
-void InspSocket::SetState(InspSocketState s)
+void BufferedSocket::SetState(BufferedSocketState s)
 {
        this->state = s;
 }
 
-InspSocketState InspSocket::GetState()
+BufferedSocketState BufferedSocket::GetState()
 {
        return this->state;
 }
 
-int InspSocket::GetFd()
+int BufferedSocket::GetFd()
 {
        return this->fd;
 }
 
-bool InspSocket::OnConnected() { return true; }
-void InspSocket::OnError(InspSocketError e) { return; }
-int InspSocket::OnDisconnect() { return 0; }
-int InspSocket::OnIncomingConnection(int newfd, char* ip) { return 0; }
-bool InspSocket::OnDataReady() { return true; }
-bool InspSocket::OnWriteReady() { return true; }
-void InspSocket::OnTimeout() { return; }
-void InspSocket::OnClose() { return; }
+bool BufferedSocket::OnConnected() { return true; }
+void BufferedSocket::OnError(BufferedSocketError e) { return; }
+int BufferedSocket::OnDisconnect() { return 0; }
+int BufferedSocket::OnIncomingConnection(int newfd, char* ip) { return 0; }
+bool BufferedSocket::OnDataReady() { return true; }
+bool BufferedSocket::OnWriteReady() { return true; }
+void BufferedSocket::OnTimeout() { return; }
+void BufferedSocket::OnClose() { return; }
 
-InspSocket::~InspSocket()
+BufferedSocket::~BufferedSocket()
 {
        this->Close();
        if (Timeout)
@@ -710,11 +684,28 @@ InspSocket::~InspSocket()
        }
 }
 
-void InspSocket::HandleEvent(EventType et, int errornum)
+void BufferedSocket::HandleEvent(EventType et, int errornum)
 {
        switch (et)
        {
                case EVENT_ERROR:
+                       switch (errornum)
+                       {
+                               case ETIMEDOUT:
+                                       this->OnError(I_ERR_TIMEOUT);
+                               break;
+                               case ECONNREFUSED:
+                               case 0:
+                                       this->OnError(this->state == I_CONNECTING ? I_ERR_CONNECT : I_ERR_WRITE);
+                               break;
+                               case EADDRINUSE:
+                                       this->OnError(I_ERR_BIND);
+                               break;
+                               case EPIPE:
+                               case EIO:
+                                       this->OnError(I_ERR_WRITE);
+                               break;
+                       }
                        if (this->Instance->SocketCull.find(this) == this->Instance->SocketCull.end())
                                this->Instance->SocketCull[this] = this;
                        return;
@@ -743,7 +734,7 @@ void InspSocket::HandleEvent(EventType et, int errornum)
                                /* This might look wrong as if we should be actually calling
                                 * with EVENT_WRITE, but trust me it is correct. There are some
                                 * writeability-state things in the read code, because of how
-                                * InspSocket used to work regarding write buffering in previous
+                                * BufferedSocket used to work regarding write buffering in previous
                                 * versions of InspIRCd. - Brain
                                 */
                                this->HandleEvent(EVENT_READ);