Netzwerk-Code auf boost::asio umgestellt

17 files changed, 259 insertions, 1074 deletions

diff --git a/src/Net/CMakeLists.txt b/src/Net/CMakeLists.txt
index aa3f857..fae358b 100644
--- a/src/Net/CMakeLists.txt
+++ b/src/Net/CMakeLists.txt
@@ -2,7 +2,7 @@ include_directories(${INCLUDES})
 link_directories(${Boost_LIBRARY_DIRS}) 
 
 add_library(Net
-  ClientConnection.cpp Connection.cpp Exception.cpp FdManager.cpp IPAddress.cpp
-  Listener.cpp Packet.cpp ServerConnection.cpp ThreadManager.cpp
+  ClientConnection.cpp Connection.cpp Exception.cpp Listener.cpp
+  Packet.cpp ThreadManager.cpp
 )
-target_link_libraries(Net ${Boost_LIBRARIES} ${GNUTLS_LIBRARIES})
+target_link_libraries(Net ${Boost_LIBRARIES} ${OPENSSL_LIBRARIES})
diff --git a/src/Net/ClientConnection.cpp b/src/Net/ClientConnection.cpp
index 087d95f..9cdf796 100644
--- a/src/Net/ClientConnection.cpp
+++ b/src/Net/ClientConnection.cpp
@@ -18,99 +18,36 @@
  */
 
 #include "ClientConnection.h"
-#include "FdManager.h"
-#include "IPAddress.h"
 
-#include <boost/thread/locks.hpp>
-
-#include <cstring>
-#include <cerrno>
-#include <sys/socket.h>
-#include <fcntl.h>
+#include <Common/Logger.h>
 
 namespace Mad {
 namespace Net {
 
-// TODO Error handling
-void ClientConnection::connectionHeaderReceiveHandler(const void *data, unsigned long length) {
-  if(length != sizeof(ConnectionHeader))
-    // Error... disconnect
-    return;
-
-  const ConnectionHeader *header = (const ConnectionHeader*)(data);
-
-  if(header->m != 'M' || header->a != 'A' || header->d != 'D')
-    // Error... disconnect
+void ClientConnection::handleConnect(const boost::system::error_code& error) {
+  if(error) {
+    // TODO Error handling
+    doDisconnect();
     return;
+  }
 
-  if(header->protVerMin != 1)
-    // Unsupported protocol... disconnect
-    return;
-
-  enterReceiveLoop();
-}
-
-void ClientConnection::connectionHeader() {
-  ConnectionHeader header = {'M', 'A', 'D', daemon ? 'D' : 'C', 0, 1, 1, 1};
+  boost::lock_guard<boost::shared_mutex> lock(connectionLock);
 
-  rawSend((uint8_t*)&header, sizeof(header));
-  rawReceive(sizeof(ConnectionHeader), boost::bind(&ClientConnection::connectionHeaderReceiveHandler, this, _1, _2));
+  socket.async_handshake(boost::asio::ssl::stream_base::client, boost::bind(&ClientConnection::handleHandshake, this, boost::asio::placeholders::error));
 }
 
-void ClientConnection::connect(const IPAddress &address, bool daemon0) throw(Exception) {
-  boost::unique_lock<boost::shared_mutex> lock(stateLock);
-
-  daemon = daemon0;
+void ClientConnection::connect(const boost::asio::ip::tcp::endpoint &address) throw(Exception) {
+  boost::lock_guard<boost::shared_mutex> lock(connectionLock);
 
   if(_isConnected()) {
     return;
     // TODO Error
   }
 
-  sock = socket(PF_INET, SOCK_STREAM, 0);
-  if(sock < 0) {
-    throw Exception("socket()", Exception::INTERNAL_ERRNO, errno);
-  }
-
-  if(peer)
-    delete peer;
-  peer = new IPAddress(address);
-
-  if(::connect(sock, peer->getSockAddr(), peer->getSockAddrLength()) < 0) {
-    close(sock);
-    delete peer;
-    peer = 0;
-
-    throw Exception("connect()", Exception::INTERNAL_ERRNO, errno);
-  }
-
-  // Set non-blocking flag
-  int flags = fcntl(sock, F_GETFL, 0);
-
-  if(flags < 0) {
-    close(sock);
-
-    throw Exception("fcntl()", Exception::INTERNAL_ERRNO, errno);
-  }
-
-  fcntl(sock, F_SETFL, flags | O_NONBLOCK);
-
-  // Don't linger
-  struct linger linger = {1, 0};
-  setsockopt(sock, SOL_SOCKET, SO_LINGER, &linger, sizeof(linger));
-
-  gnutls_init(&session, GNUTLS_CLIENT);
-  gnutls_set_default_priority(session);
-  gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred);
-  gnutls_transport_set_ptr(session, (gnutls_transport_ptr_t)sock);
-
-  FdManager::get()->registerFd(sock, boost::bind(&ClientConnection::sendReceive, this, _1));
-
+  peer = address;
   state = CONNECT;
 
-  lock.unlock();
-
-  updateEvents();
+  socket.lowest_layer().async_connect(address, boost::bind(&ClientConnection::handleConnect, this, boost::asio::placeholders::error));
 }
 
 }
diff --git a/src/Net/ClientConnection.h b/src/Net/ClientConnection.h
index bdd7872..f93c2fc 100644
--- a/src/Net/ClientConnection.h
+++ b/src/Net/ClientConnection.h
@@ -23,24 +23,27 @@
 #include "Connection.h"
 #include "Exception.h"
 
+#include <boost/utility/base_from_member.hpp>
+
+
 namespace Mad {
 namespace Net {
 
 class IPAddress;
 
-class ClientConnection : public Connection {
+class ClientConnection : private boost::base_from_member<boost::asio::ssl::context>, public Connection {
   private:
-    bool daemon;
-
-    void connectionHeaderReceiveHandler(const void *data, unsigned long length);
-
-  protected:
-    virtual void connectionHeader();
+    void handleConnect(const boost::system::error_code& error);
 
   public:
-    ClientConnection() : daemon(0) {}
-
-    void connect(const IPAddress &address, bool daemon0 = false) throw(Exception);
+    ClientConnection()
+    : boost::base_from_member<boost::asio::ssl::context>(boost::ref(Connection::ioService), boost::asio::ssl::context::sslv23),
+    Connection(member)
+    {
+      member.set_verify_mode(boost::asio::ssl::context::verify_none);
+    }
+
+    void connect(const boost::asio::ip::tcp::endpoint &address) throw(Exception);
 };
 
 }
diff --git a/src/Net/Connection.cpp b/src/Net/Connection.cpp
index 4e5029f..b9691cb 100644
--- a/src/Net/Connection.cpp
+++ b/src/Net/Connection.cpp
@@ -18,361 +18,225 @@
  */
 
 #include "Connection.h"
-#include "FdManager.h"
-#include "IPAddress.h"
 #include "ThreadManager.h"
 
-#include <cstring>
-#include <sys/socket.h>
+#include <Common/Logger.h>
 
+#include <cstring>
 #include <boost/bind.hpp>
 
 namespace Mad {
 namespace Net {
 
-
-Connection::StaticInit Connection::staticInit;
+boost::asio::io_service Connection::ioService;
 
 
 Connection::~Connection() {
   if(_isConnected())
     doDisconnect();
-
-  if(transR.data)
-    delete [] transR.data;
-
-  while(!_sendQueueEmpty()) {
-    delete [] transS.front().data;
-    transS.pop();
-  }
-
-  gnutls_certificate_free_credentials(x509_cred);
-
-  if(peer)
-    delete peer;
-}
-
-void Connection::handshake() {
-  boost::unique_lock<boost::shared_mutex> lock(stateLock);
-  if(state != CONNECT)
-    return;
-
-  state = HANDSHAKE;
-  lock.unlock();
-
-  doHandshake();
 }
 
-void Connection::bye() {
-  boost::unique_lock<boost::shared_mutex> lock(stateLock);
-  if(state != DISCONNECT)
-    return;
-
-  state = BYE;
-  lock.unlock();
+void Connection::handleHandshake(const boost::system::error_code& error) {
+  if(error) {
+    Common::Logger::logf("Error: %s", error.message().c_str());
 
-  doBye();
-}
-
-void Connection::doHandshake() {
-  boost::shared_lock<boost::shared_mutex> lock(stateLock);
-  if(state != HANDSHAKE)
+    // TODO Error handling
+    doDisconnect();
     return;
+  }
 
-  int ret = gnutls_handshake(session);
-  if(ret < 0) {
-    lock.unlock();
+  {
+    boost::lock_guard<boost::shared_mutex> lock(connectionLock);
+    state = CONNECTED;
 
-    if(ret == GNUTLS_E_INTERRUPTED || ret == GNUTLS_E_AGAIN) {
-      updateEvents();
-      return;
-    }
+    receiving = false;
+    sending = 0;
 
-    // TODO: Error
-    doDisconnect();
-    return;
+    received = 0;
   }
 
-  state = CONNECTION_HEADER;
-  lock.unlock();
+  ThreadManager::get()->pushWork(boost::bind((void (boost::signal0<void>::*)())&boost::signal0<void>::operator(), &connectedSignal));
 
-  connectionHeader();
+  enterReceiveLoop();
 }
 
-void Connection::doBye() {
-  if(state != BYE)
-    return;
-
-  int ret = gnutls_bye(session, GNUTLS_SHUT_RDWR);
-  if(ret < 0) {
-    if(ret == GNUTLS_E_INTERRUPTED || ret == GNUTLS_E_AGAIN) {
-      updateEvents();
-      return;
-    }
+void Connection::handleShutdown(const boost::system::error_code& error) {
+  boost::lock_guard<boost::shared_mutex> lock(connectionLock);
 
-    // TODO: Error
-    doDisconnect();
-    return;
+  if(error) {
+    // TODO Error
   }
 
-  doDisconnect();
+  state = DISCONNECTED;
+  ThreadManager::get()->pushWork(boost::bind((void (boost::signal0<void>::*)())&boost::signal0<void>::operator(), &disconnectedSignal));
 }
 
 void Connection::enterReceiveLoop() {
-  boost::unique_lock<boost::shared_mutex> lock(stateLock);
-
-  if(!_isConnected() || _isDisconnecting())
-    return;
-
-  if(_isConnecting())
-    ThreadManager::get()->pushWork(boost::bind((void (boost::signal0<void>::*)())&boost::signal0<void>::operator(), &connectedSignal));
+  {
+    boost::lock_guard<boost::shared_mutex> lock(connectionLock);
 
-  state = PACKET_HEADER;
-  lock.unlock();
+    if(!_isConnected() || _isDisconnecting())
+      return;
+  }
 
-  rawReceive(sizeof(Packet::Data), boost::bind(&Connection::packetHeaderReceiveHandler, this, _1, _2));
+  rawReceive(sizeof(Packet::Data), boost::bind(&Connection::handleHeaderReceive, this, _1));
 }
 
-void Connection::packetHeaderReceiveHandler(const void *data, unsigned long length) {
-  if(state != PACKET_HEADER)
-      return;
+void Connection::handleHeaderReceive(const std::vector<boost::uint8_t> &data) {
+  {
+    boost::lock_guard<boost::shared_mutex> lock(connectionLock);
 
-  if(length != sizeof(Packet::Data)) {
-    // TODO: Error
-    doDisconnect();
-    return;
+    header = *reinterpret_cast<const Packet::Data*>(data.data());
   }
 
-  header = *(const Packet::Data*)data;
-
   if(header.length == 0) {
     ThreadManager::get()->pushWork(boost::bind((void (boost::signal1<void, const Packet&>::*)(const Packet&))&boost::signal1<void, const Packet&>::operator(), &receiveSignal, Packet(ntohs(header.requestId))));
 
     enterReceiveLoop();
   }
   else {
-    state = PACKET_DATA;
-    rawReceive(ntohs(header.length), boost::bind(&Connection::packetDataReceiveHandler, this, _1, _2));
+    rawReceive(ntohs(header.length), boost::bind(&Connection::handleDataReceive, this, _1));
   }
 }
 
-void Connection::packetDataReceiveHandler(const void *data, unsigned long length) {
-  if(state != PACKET_DATA)
-    return;
+void Connection::handleDataReceive(const std::vector<boost::uint8_t> &data) {
+  {
+    boost::upgrade_lock<boost::shared_mutex> lock(connectionLock);
 
-  if(length != ntohs(header.length)) {
-    // TODO: Error
-    doDisconnect();
-    return;
+    Packet packet(ntohs(header.requestId), data.data(), ntohs(header.length));
+    ThreadManager::get()->pushWork(boost::bind((void (boost::signal1<void, const Packet&>::*)(const Packet&))&boost::signal1<void, const Packet&>::operator(), &receiveSignal, packet));
   }
 
-  ThreadManager::get()->pushWork(boost::bind((void (boost::signal1<void, const Packet&>::*)(const Packet&))&boost::signal1<void, const Packet&>::operator(), &receiveSignal, Packet(ntohs(header.requestId), data, length)));
-
   enterReceiveLoop();
 }
 
-void Connection::doReceive() {
-  if(!isConnected())
-    return;
-
-  boost::unique_lock<boost::mutex> lock(receiveLock);
-
-  if(_receiveComplete())
-    return;
-
-  ssize_t ret = gnutls_record_recv(session, transR.data+transR.transmitted, transR.length-transR.transmitted);
+void Connection::handleRead(const boost::system::error_code& error, std::size_t bytes_transferred, std::size_t length, const boost::function1<void, const std::vector<boost::uint8_t>& > &notify) {
+  if(error || (bytes_transferred+received) < length) {
+    Common::Logger::logf(Common::Logger::VERBOSE, "Read error: %s", error.message().c_str());
 
-  if(ret < 0) {
-    lock.unlock();
-    if(ret == GNUTLS_E_INTERRUPTED || ret == GNUTLS_E_AGAIN)
-      return;
-
-    // TODO: Error
+    // TODO Error
     doDisconnect();
     return;
   }
 
-  transR.transmitted += ret;
-
-  if(_receiveComplete()) {
-    // Save data pointer, as transR.notify might start a new reception
-    uint8_t *data = transR.data;
-    transR.data = 0;
+  std::vector<boost::uint8_t> buffer;
 
-    lock.unlock();
+  {
+    boost::shared_lock<boost::shared_mutex> lock(connectionLock);
 
-    transR.notify(data, transR.length);
+    if(state != CONNECTED || !receiving)
+      return;
 
-    delete [] data;
-  }
-  else {
-    lock.unlock();
+    buffer.insert(buffer.end(), receiveBuffer.data(), receiveBuffer.data()+length);
   }
 
-  updateEvents();
-}
-
-bool Connection::rawReceive(unsigned long length,
-    const boost::function2<void,const void*,unsigned long> &notify)
-{
-  if(!isConnected())
-    return false;
-
-  boost::unique_lock<boost::mutex> lock(receiveLock);
-  if(!_receiveComplete())
-    return false;
-
-  transR.data = new uint8_t[length];
-  transR.length = length;
-  transR.transmitted = 0;
-  transR.notify = notify;
+  {
+    boost::lock_guard<boost::shared_mutex> lock(connectionLock);
 
-  lock.unlock();
+    receiving = false;
+    received = received + bytes_transferred - length;
 
-  updateEvents();
+    if(received)
+      std::memmove(receiveBuffer.data(), receiveBuffer.data()+length, received);
+  }
 
-  return true;
+  notify(buffer);
 }
 
-void Connection::doSend() {
-  if(!isConnected())
-    return;
+void Connection::rawReceive(std::size_t length, const boost::function1<void, const std::vector<boost::uint8_t>& > &notify) {
+  boost::upgrade_lock<boost::shared_mutex> lock(connectionLock);
 
-  boost::unique_lock<boost::mutex> lock(sendLock);
-  while(!_sendQueueEmpty()) {
-    ssize_t ret = gnutls_record_send(session, transS.front().data+transS.front().transmitted,
-        transS.front().length-transS.front().transmitted);
-
-    if(ret < 0) {
-      lock.unlock();
+  if(!_isConnected())
+    return;
 
-      if(ret == GNUTLS_E_INTERRUPTED || ret == GNUTLS_E_AGAIN)
-        return;
+  {
+    boost::upgrade_to_unique_lock<boost::shared_mutex> upgradeLock(lock);
 
-      // TODO: Error
-      doDisconnect();
+    if(receiving)
       return;
-    }
 
-    transS.front().transmitted += ret;
+    receiving = true;
 
-    if(transS.front().transmitted == transS.front().length) {
-      delete [] transS.front().data;
-      transS.pop();
+    if(length > received) {
+      boost::asio::async_read(socket, boost::asio::buffer(receiveBuffer.data()+received, receiveBuffer.size()-received), boost::asio::transfer_at_least(length),
+          boost::bind(&Connection::handleRead, this, boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred,
+              length, notify));
+
+      return;
     }
   }
 
   lock.unlock();
 
-  updateEvents();
+  handleRead(boost::system::error_code(), 0, length, notify);
 }
 
-bool Connection::rawSend(const uint8_t *data, unsigned long length) {
-  if(!isConnected())
-    return false;
+void Connection::handleWrite(const boost::system::error_code& error, std::size_t) {
+  {
+    boost::unique_lock<boost::shared_mutex> lock(connectionLock);
 
-  Transmission trans = {length, 0, new uint8_t[length], boost::function2<void,const void*,unsigned long>()};
-  std::memcpy(trans.data, data, length);
+    sending--;
 
-  sendLock.lock();
-  transS.push(trans);
-  sendLock.unlock();
-
-  updateEvents();
+    if(state == DISCONNECT && !sending) {
+      lock.unlock();
+      doDisconnect();
+      return;
+    }
+  }
 
-  return true;
-}
+  if(error) {
+    Common::Logger::logf(Common::Logger::VERBOSE, "Write error: %s", error.message().c_str());
 
-void Connection::sendReceive(short events) {
-  if(events & POLLHUP || events & POLLERR) {
+    // TODO Error
     doDisconnect();
-    return;
   }
+}
 
-  switch(state) {
-    case CONNECT:
-      handshake();
-      return;
-    case HANDSHAKE:
-      doHandshake();
-      return;
-    case DISCONNECT:
-      if(!_sendQueueEmpty())
-        break;
+void Connection::rawSend(const uint8_t *data, std::size_t length) {
+  boost::upgrade_lock<boost::shared_mutex> lock(connectionLock);
 
-      bye();
-      return;
-    case BYE:
-      doBye();
-      return;
-    default:
-      break;
-  }
+  if(!_isConnected())
+    return;
 
-  if(events & POLLIN)
-    doReceive();
+  {
+    boost::upgrade_to_unique_lock<boost::shared_mutex> upgradeLock(lock);
 
-  if(events & POLLOUT)
-    doSend();
+    sending++;
+    boost::asio::async_write(socket, Buffer(data, length), boost::bind(&Connection::handleWrite, this, boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred));
+  }
 }
 
 bool Connection::send(const Packet &packet) {
-  stateLock.lock_shared();
-  bool err = (!_isConnected() || _isConnecting() || _isDisconnecting());
-  stateLock.unlock_shared();
-
-  if(err)
-    return false;
+  {
+    boost::shared_lock<boost::shared_mutex> lock(connectionLock);
+    if(!_isConnected() || _isConnecting() || _isDisconnecting())
+      return false;
+  }
 
-  return rawSend((const uint8_t*)packet.getRawData(), packet.getRawDataLength());
+  rawSend((const uint8_t*)packet.getRawData(), packet.getRawDataLength());
+  return true;
 }
 
 void Connection::disconnect() {
-  boost::unique_lock<boost::shared_mutex> lock(stateLock);
-  if(!_isConnected() || _isDisconnecting())
-    return;
+  {
+    boost::lock_guard<boost::shared_mutex> lock(connectionLock);
+    if(!_isConnected() || _isDisconnecting())
+      return;
 
-  state = DISCONNECT;
+    state = DISCONNECT;
 
-  lock.unlock();
+    if(sending)
+      return;
+  }
 
-  updateEvents();
+  doDisconnect();
 }
 
 void Connection::doDisconnect() {
-  boost::unique_lock<boost::shared_mutex> lock(stateLock);
-
-  if(_isConnected()) {
-    FdManager::get()->unregisterFd(sock);
-
-    shutdown(sock, SHUT_RDWR);
-    close(sock);
+  boost::lock_guard<boost::shared_mutex> lock(connectionLock);
 
-    gnutls_deinit(session);
-
-    ThreadManager::get()->pushWork(boost::bind((void (boost::signal0<void>::*)())&boost::signal0<void>::operator(), &disconnectedSignal));
-
-    state = DISCONNECTED;
-  }
-}
-
-void Connection::updateEvents() {
-  receiveLock.lock();
-  short events = (_receiveComplete() ? 0 : POLLIN);
-  receiveLock.unlock();
-
-  sendLock.lock();
-  events |= (_sendQueueEmpty() ? 0 : POLLOUT);
-  sendLock.unlock();
-
-  stateLock.lock_shared();
-  if(state == HANDSHAKE || state == BYE)
-    events = ((gnutls_record_get_direction(session) == 0) ? POLLIN : POLLOUT);
-  else if(state == CONNECT || state == DISCONNECT)
-    events |= POLLOUT;
-
-  FdManager::get()->setFdEvents(sock, events);
-  stateLock.unlock_shared();
+  if(_isConnected())
+    socket.async_shutdown(boost::bind(&Connection::handleShutdown, this, boost::asio::placeholders::error));
 }
 
 }
diff --git a/src/Net/Connection.h b/src/Net/Connection.h
index a0b95ea..303485d 100644
--- a/src/Net/Connection.h
+++ b/src/Net/Connection.h
@@ -24,155 +24,111 @@
 
 #include "Packet.h"
 
-#include <queue>
-#include <string>
-#include <gnutls/gnutls.h>
-#include <poll.h>
+#include <boost/asio.hpp>
+#include <boost/asio/ssl.hpp>
 
 #include <boost/signal.hpp>
-#include <boost/thread/mutex.hpp>
-#include <boost/thread/shared_mutex.hpp>
 
-#include <iostream>
+#include <boost/thread/shared_mutex.hpp>
 
 namespace Mad {
 namespace Net {
 
-class IPAddress;
-class Packet;
+class ThreadManager;
 
-class Connection {
+class Connection : boost::noncopyable {
   private:
-    class StaticInit {
-      public:
-        StaticInit() {
-          gnutls_global_init();
-        }
+    friend class ThreadManager;
 
-        ~StaticInit() {
-          gnutls_global_deinit();
-        }
-    };
-    static StaticInit staticInit;
+    class Buffer {
+      public:
+        Buffer(const uint8_t *data0, std::size_t length) : data(new std::vector<uint8_t>(data0, data0+length)), buffer(boost::asio::buffer(*data)) {}
 
-    struct Transmission {
-      unsigned long length;
-      unsigned long transmitted;
+        typedef boost::asio::const_buffer value_type;
+        typedef const boost::asio::const_buffer* const_iterator;
 
-      uint8_t *data;
+        const boost::asio::const_buffer* begin() const { return &buffer; }
+        const boost::asio::const_buffer* end() const { return &buffer + 1; }
 
-      boost::function2<void,const void*,unsigned long> notify;
+      private:
+        boost::shared_ptr<std::vector<uint8_t> > data;
+        boost::asio::const_buffer buffer;
     };
 
-    boost::mutex receiveLock;
-    Transmission transR;
 
-    boost::mutex sendLock;
-    std::queue<Transmission> transS;
+    std::vector<boost::uint8_t> receiveBuffer;
+    std::size_t received;
 
     Packet::Data header;
 
-    boost::signal1<void,const Packet&> receiveSignal;
+    boost::signal1<void, const Packet&> receiveSignal;
     boost::signal0<void> connectedSignal;
     boost::signal0<void> disconnectedSignal;
 
-    void doHandshake();
-
-    void packetHeaderReceiveHandler(const void *data, unsigned long length);
-    void packetDataReceiveHandler(const void *data, unsigned long length);
+    bool receiving;
+    unsigned long sending;
 
-    void doReceive();
-    void doSend();
-
-    void doBye();
-
-    void doDisconnect();
+    void enterReceiveLoop();
 
-    bool _receiveComplete() const {
-      return (transR.length == transR.transmitted);
-    }
+    void handleHeaderReceive(const std::vector<boost::uint8_t> &data);
+    void handleDataReceive(const std::vector<boost::uint8_t> &data);
 
-    bool _sendQueueEmpty() const {return transS.empty();}
+    void handleRead(const boost::system::error_code& error, std::size_t bytes_transferred, std::size_t length, const boost::function1<void, const std::vector<boost::uint8_t>& > &notify);
+    void handleWrite(const boost::system::error_code& error, std::size_t);
 
-    void bye();
+    void handleShutdown(const boost::system::error_code& error);
 
-    // Prevent shallow copy
-    Connection(const Connection &o);
-    Connection& operator=(const Connection &o);
+    void rawReceive(std::size_t length, const boost::function1<void, const std::vector<boost::uint8_t>& > &notify);
+    void rawSend(const uint8_t *data, std::size_t length);
 
   protected:
-    struct ConnectionHeader {
-      uint8_t m;
-      uint8_t a;
-      uint8_t d;
-      uint8_t type;
-
-      uint8_t versionMajor;
-      uint8_t versionMinor;
-      uint8_t protVerMin;
-      uint8_t protVerMax;
-    };
+    static boost::asio::io_service ioService;
 
-    boost::shared_mutex stateLock;
+    boost::shared_mutex connectionLock;
 
     enum State {
-      DISCONNECTED, CONNECT, HANDSHAKE, CONNECTION_HEADER, PACKET_HEADER, PACKET_DATA, DISCONNECT, BYE
+      DISCONNECTED, CONNECT, CONNECTED, DISCONNECT
     } state;
 
-    int sock;
-    gnutls_session_t session;
-    gnutls_certificate_credentials_t x509_cred;
 
-    IPAddress *peer;
+    boost::asio::ssl::stream<boost::asio::ip::tcp::socket> socket;
+    boost::asio::ip::tcp::endpoint peer;
 
-    void handshake();
-
-    virtual void connectionHeader() = 0;
-
-    bool rawReceive(unsigned long length, const boost::function2<void,const void*,unsigned long> &notify);
-    bool rawSend(const uint8_t *data, unsigned long length);
-
-    void enterReceiveLoop();
-
-    void sendReceive(short events);
+    void handleHandshake(const boost::system::error_code& error);
 
     bool _isConnected() const {return (state != DISCONNECTED);}
     bool _isConnecting() const {
-      return (state == CONNECT || state == HANDSHAKE || state == CONNECTION_HEADER);
+      return (state == CONNECT);
     }
 
     bool _isDisconnecting() const {
-      return (state == DISCONNECT || state == BYE);
+      return (state == DISCONNECT);
     }
 
-    void updateEvents();
-
-  public:
-    Connection() : state(DISCONNECTED), peer(0) {
-      transR.length = transR.transmitted = 0;
-      transR.data = 0;
+    void doDisconnect();
 
-      gnutls_certificate_allocate_credentials(&x509_cred);
-    }
+    Connection(boost::asio::ssl::context &sslContext) :
+      receiveBuffer(1024*1024), state(DISCONNECTED), socket(ioService, sslContext) {}
 
+  public:
     virtual ~Connection();
 
     bool isConnected() {
-      boost::shared_lock<boost::shared_mutex> lock(stateLock);
+      boost::shared_lock<boost::shared_mutex> lock(connectionLock);
       return _isConnected();
     }
 
     bool isConnecting() {
-      boost::shared_lock<boost::shared_mutex> lock(stateLock);
+      boost::shared_lock<boost::shared_mutex> lock(connectionLock);
       return _isConnecting();
     }
 
     bool isDisconnecting() {
-      boost::shared_lock<boost::shared_mutex> lock(stateLock);
+      boost::shared_lock<boost::shared_mutex> lock(connectionLock);
       return _isDisconnecting();
     }
 
-    const gnutls_datum_t* getCertificate() const {
+    /*const gnutls_datum_t* getCertificate() const {
       // TODO Thread-safeness
       return gnutls_certificate_get_ours(session);
     }
@@ -181,16 +137,18 @@ class Connection {
       // TODO Thread-safeness
       unsigned int n;
       return gnutls_certificate_get_peers(session, &n);
-    }
+    }*/
 
-    // TODO Thread-safeness
-    const IPAddress* getPeer() const {return peer;}
+    boost::asio::ip::tcp::endpoint getPeer() {
+      boost::shared_lock<boost::shared_mutex> lock(connectionLock);
+      return peer;
+    }
 
     void disconnect();
 
     bool send(const Packet &packet);
 
-    boost::signal1<void,const Packet&>& signalReceive() {return receiveSignal;}
+    boost::signal1<void, const Packet&>& signalReceive() {return receiveSignal;}
     boost::signal0<void>& signalConnected() {return connectedSignal;}
     boost::signal0<void>& signalDisconnected() {return disconnectedSignal;}
 };
diff --git a/src/Net/Exception.cpp b/src/Net/Exception.cpp
index 34b8033..e082948 100644
--- a/src/Net/Exception.cpp
+++ b/src/Net/Exception.cpp
@@ -20,7 +20,6 @@
 #include "Exception.h"
 
 #include <cstring>
-#include <gnutls/gnutls.h>
 
 namespace Mad {
 namespace Net {
@@ -46,8 +45,6 @@ std::string Exception::strerror() const {
       return ret + "Not implemented";
     case INTERNAL_ERRNO:
       return ret + std::strerror(subCode);
-    case INTERNAL_GNUTLS:
-      return ret + "GnuTLS error: " + gnutls_strerror(subCode);
     case INVALID_ADDRESS:
       return ret + "Invalid address";
     case ALREADY_IDENTIFIED:
diff --git a/src/Net/Exception.h b/src/Net/Exception.h
index 48e86d1..8522528 100644
--- a/src/Net/Exception.h
+++ b/src/Net/Exception.h
@@ -29,7 +29,7 @@ class Exception {
   public:
     enum ErrorCode {
       SUCCESS = 0x0000, UNEXPECTED_PACKET = 0x0001, INVALID_ACTION = 0x0002, NOT_AVAILABLE = 0x0003, NOT_FINISHED = 0x0004, NOT_IMPLEMENTED = 0x0005,
-      INTERNAL_ERRNO = 0x0010, INTERNAL_GNUTLS = 0x0011,
+      INTERNAL_ERRNO = 0x0010,
       INVALID_ADDRESS = 0x0020,
       ALREADY_IDENTIFIED = 0x0030, UNKNOWN_DAEMON = 0x0031
     };
diff --git a/src/Net/FdManager.cpp b/src/Net/FdManager.cpp
deleted file mode 100644
index d8faef4..0000000
--- a/src/Net/FdManager.cpp
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- * FdManager.cpp
- *
- * Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
- *
- * This program is free software: you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- * See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "FdManager.h"
-#include "ThreadManager.h"
-
-#include <signal.h>
-#include <unistd.h>
-#include <sys/fcntl.h>
-
-
-namespace Mad {
-namespace Net {
-
-FdManager FdManager::fdManager;
-
-
-FdManager::FdManager() : running(false) {
-  pipe(interruptPipe);
-
-  int flags = fcntl(interruptPipe[0], F_GETFL, 0);
-  fcntl(interruptPipe[0], F_SETFL, flags | O_NONBLOCK);
-
-  flags = fcntl(interruptPipe[1], F_GETFL, 0);
-  fcntl(interruptPipe[1], F_SETFL, flags | O_NONBLOCK);
-
-  registerFd(interruptPipe[0], boost::bind(&FdManager::readInterrupt, this), POLLIN);
-}
-
-FdManager::~FdManager() {
-  unregisterFd(interruptPipe[0]);
-
-  close(interruptPipe[0]);
-  close(interruptPipe[1]);
-}
-
-
-bool FdManager::registerFd(int fd, const boost::function1<void, short> &handler, short events) {
-  struct pollfd pollfd = {fd, events, 0};
-
-  boost::lock(handlerLock, eventLock);
-  pollfds.insert(std::make_pair(fd, pollfd));
-
-  bool ret = handlers.insert(std::make_pair(fd, handler)).second;
-
-  eventLock.unlock();
-  handlerLock.unlock();
-
-  interrupt();
-
-  return ret;
-}
-
-bool FdManager::unregisterFd(int fd) {
-  boost::lock(handlerLock, eventLock);
-  pollfds.erase(fd);
-  bool ret = handlers.erase(fd);
-  eventLock.unlock();
-  handlerLock.unlock();
-
-  interrupt();
-
-  return ret;
-}
-
-bool FdManager::setFdEvents(int fd, short events) {
-  boost::unique_lock<boost::shared_mutex> lock(eventLock);
-
-  std::map<int, struct pollfd>::iterator pollfd = pollfds.find(fd);
-
-  if(pollfd == pollfds.end())
-    return false;
-
-  if(pollfd->second.events != events) {
-    pollfd->second.events = events;
-    interrupt();
-  }
-
-  return true;
-}
-
-short FdManager::getFdEvents(int fd) {
-  boost::shared_lock<boost::shared_mutex> lock(eventLock);
-
-  std::map<int, struct pollfd>::const_iterator pollfd = pollfds.find(fd);
-
-  if(pollfd == pollfds.end())
-    return -1;
-
-  return pollfd->second.events;
-}
-
-void FdManager::readInterrupt() {
-  char buf[20];
-
-  while(read(interruptPipe[0], buf, sizeof(buf)) > 0) {}
-}
-
-void FdManager::interrupt() {
-  char buf = 0;
-
-  write(interruptPipe[1], &buf, sizeof(buf));
-}
-
-void FdManager::ioThread() {
-  runLock.lock();
-  running = true;
-  runLock.unlock_and_lock_shared();
-
-  while(running) {
-    runLock.unlock_shared();
-
-    handlerLock.lock_shared();
-    eventLock.lock_shared();
-    readInterrupt();
-
-    size_t count = pollfds.size();
-    struct pollfd *fdarray = new struct pollfd[count];
-
-    std::map<int, struct pollfd>::iterator pollfd = pollfds.begin();
-
-    for(size_t n = 0; n < count; ++n) {
-      fdarray[n] = pollfd->second;
-      ++pollfd;
-    }
-
-    eventLock.unlock_shared();
-    handlerLock.unlock_shared();
-
-    if(poll(fdarray, count, -1) > 0) {
-      handlerLock.lock_shared();
-
-      std::queue<boost::function0<void> > calls;
-
-      for(size_t n = 0; n < count; ++n) {
-        if(fdarray[n].revents)
-          calls.push(boost::bind(handlers[fdarray[n].fd], fdarray[n].revents));
-      }
-
-      handlerLock.unlock_shared();
-
-      while(!calls.empty()) {
-        calls.front()();
-        calls.pop();
-      }
-
-    }
-
-    delete [] fdarray;
-
-    runLock.lock_shared();
-  }
-
-  runLock.unlock_shared();
-}
-
-}
-}
diff --git a/src/Net/FdManager.h b/src/Net/FdManager.h
deleted file mode 100644
index 1cb95bc..0000000
--- a/src/Net/FdManager.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * FdManager.h
- *
- * Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
- *
- * This program is free software: you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- * See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef MAD_NET_FDMANAGER_H_
-#define MAD_NET_FDMANAGER_H_
-
-#include <map>
-#include <poll.h>
-
-#include <boost/function.hpp>
-#include <boost/thread/shared_mutex.hpp>
-
-namespace Mad {
-namespace Net {
-
-class ThreadManager;
-
-class FdManager {
-  private:
-    friend class ThreadManager;
-
-    static FdManager fdManager;
-
-    boost::shared_mutex runLock, handlerLock, eventLock;
-    bool running;
-
-    std::map<int, struct pollfd> pollfds;
-    std::map<int, boost::function1<void, short> > handlers;
-
-    int interruptPipe[2];
-
-    void readInterrupt();
-    void interrupt();
-
-    FdManager();
-
-    void ioThread();
-    void stopIOThread() {
-      runLock.lock();
-      running = false;
-      runLock.unlock();
-
-      interrupt();
-    }
-
-  public:
-    virtual ~FdManager();
-
-    static FdManager *get() {return &fdManager;}
-
-    bool registerFd(int fd, const boost::function1<void, short> &handler, short events = 0);
-    bool unregisterFd(int fd);
-
-    bool setFdEvents(int fd, short events);
-    short getFdEvents(int fd);
-};
-
-}
-}
-
-#endif /* MAD_NET_FDMANAGER_H_ */
diff --git a/src/Net/IPAddress.cpp b/src/Net/IPAddress.cpp
deleted file mode 100644
index eb9d3be..0000000
--- a/src/Net/IPAddress.cpp
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * IPAddress.cpp
- *
- * Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
- *
- * This program is free software: you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- * See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "IPAddress.h"
-
-#include <cstdlib>
-
-namespace Mad {
-namespace Net {
-
-IPAddress::IPAddress(uint16_t port0) : addr(INADDR_ANY), port(port0) {
-  sa.sin_family = AF_INET;
-  sa.sin_port = htons(port);
-  sa.sin_addr.s_addr = INADDR_ANY;
-}
-
-IPAddress::IPAddress(uint32_t address, uint16_t port0) : addr(address), port(port0) {
-  sa.sin_family = AF_INET;
-  sa.sin_port = htons(port);
-  sa.sin_addr.s_addr = htonl(addr);
-}
-
-IPAddress::IPAddress(const std::string &address) throw(Exception) {
-  std::string ip;
-  size_t pos = address.find_first_of(':');
-
-  if(pos == std::string::npos) {
-    ip = address;
-    // TODO Default port
-    port = 6666;
-  }
-  else {
-    ip = address.substr(0, pos);
-
-    char *endptr;
-    port = std::strtol(address.substr(pos+1).c_str(), &endptr, 10);
-    if(*endptr != 0 || port == 0)
-      throw Exception(Exception::INVALID_ADDRESS);
-  }
-
-  sa.sin_family = AF_INET;
-  sa.sin_port = htons(port);
-
-  if(ip == "*")
-    sa.sin_addr.s_addr = INADDR_ANY;
-  else if(!inet_pton(AF_INET, ip.c_str(), &sa.sin_addr))
-    throw Exception(Exception::INVALID_ADDRESS);
-
-  addr = ntohl(sa.sin_addr.s_addr);
-}
-
-IPAddress::IPAddress(const std::string &address, uint16_t port0) throw(Exception) : port(port0) {
-  sa.sin_family = AF_INET;
-  sa.sin_port = htons(port);
-
-  if(!inet_pton(AF_INET, address.c_str(), &sa.sin_addr))
-    throw Exception(Exception::INVALID_ADDRESS);
-
-  addr = ntohl(sa.sin_addr.s_addr);
-}
-
-IPAddress::IPAddress(const struct sockaddr_in &address) : sa(address) {
-  port = ntohs(sa.sin_port);
-  addr = ntohl(sa.sin_addr.s_addr);
-}
-
-std::string IPAddress::getAddressString() const {
-  char buf[INET_ADDRSTRLEN];
-  uint32_t address = htonl(addr);
-
-  inet_ntop(AF_INET, &address, buf, sizeof(buf));
-  return std::string(buf);
-}
-
-}
-}
diff --git a/src/Net/IPAddress.h b/src/Net/IPAddress.h
deleted file mode 100644
index 3541891..0000000
--- a/src/Net/IPAddress.h
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * IPAddress.h
- *
- * Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
- *
- * This program is free software: you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- * See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef MAD_NET_IPADDRESS_H_
-#define MAD_NET_IPADDRESS_H_
-
-#include "Exception.h"
-
-#include <string>
-#include <arpa/inet.h>
-#include <stdint.h>
-
-namespace Mad {
-namespace Net {
-
-class IPAddress {
-  private:
-    uint32_t addr;
-    uint16_t port;
-    struct sockaddr_in sa;
-
-  public:
-    // TODO Default port
-    IPAddress(uint16_t port0 = 6666);
-    IPAddress(uint32_t address, uint16_t port0);
-    IPAddress(const std::string &address) throw(Exception);
-    IPAddress(const std::string &address, uint16_t port0) throw(Exception);
-    IPAddress(const struct sockaddr_in &address);
-
-    uint32_t getAddress() const {return addr;}
-    uint16_t getPort() const {return port;}
-
-    std::string getAddressString() const;
-
-    struct sockaddr* getSockAddr() {return (struct sockaddr*)&sa;}
-    socklen_t getSockAddrLength() const {return sizeof(sa);}
-};
-
-}
-}
-
-#endif /*MAD_NET_IPADDRESS_H_*/
diff --git a/src/Net/Listener.cpp b/src/Net/Listener.cpp
index 11cbaf5..6f49a74 100644
--- a/src/Net/Listener.cpp
+++ b/src/Net/Listener.cpp
@@ -18,8 +18,6 @@
  */
 
 #include "Listener.h"
-#include "FdManager.h"
-#include "ServerConnection.h"
 
 #include <Common/Logger.h>
 
@@ -30,26 +28,29 @@
 namespace Mad {
 namespace Net {
 
-void Listener::acceptHandler(int) {
-  int sd;
-  struct sockaddr_in sa;
-  socklen_t addrlen = sizeof(sa);
+void Listener::handleAccept(const boost::system::error_code &error, boost::shared_ptr<ServerConnection> con) {
+  if(error)
+    return;
+
+  {
+    boost::lock_guard<boost::shared_mutex> lock(con->connectionLock);
 
+    con->state = ServerConnection::CONNECT;
 
-  while((sd = accept(sock, (struct sockaddr*)&sa, &addrlen)) >= 0) {
-    ServerConnection *con = new ServerConnection(sd, IPAddress(sa), dh_params, x905CertFile, x905KeyFile);
-    boost::signals::connection con1 = con->signalConnected().connect(boost::bind(&Listener::connectHandler, this, con));
-    boost::signals::connection con2 = con->signalDisconnected().connect(boost::bind(&Listener::disconnectHandler, this, con));
+    boost::signals::connection con1 = con->signalConnected().connect(boost::bind(&Listener::handleConnect, this, con));
+    boost::signals::connection con2 = con->signalDisconnected().connect(boost::bind(&Listener::handleDisconnect, this, con));
 
     connections.insert(std::make_pair(con, std::make_pair(con1, con2)));
 
-    addrlen = sizeof(sa);
+    con->socket.async_handshake(boost::asio::ssl::stream_base::server, boost::bind(&ServerConnection::handleHandshake, con, boost::asio::placeholders::error));
   }
-}
 
+  con.reset(new ServerConnection(sslContext));
+  acceptor.async_accept(con->socket.lowest_layer(), boost::bind(&Listener::handleAccept, this, boost::asio::placeholders::error, con));
+}
 
-void Listener::connectHandler(ServerConnection *con) {
-  std::map<ServerConnection*, std::pair<boost::signals::connection, boost::signals::connection> >::iterator it = connections.find(con);
+void Listener::handleConnect(boost::shared_ptr<ServerConnection> con) {
+  std::map<boost::shared_ptr<ServerConnection>, std::pair<boost::signals::connection, boost::signals::connection> >::iterator it = connections.find(con);
 
   if(it == connections.end())
     return;
@@ -62,67 +63,33 @@ void Listener::connectHandler(ServerConnection *con) {
   signal(con);
 }
 
-void Listener::disconnectHandler(ServerConnection *con) {
-  std::map<ServerConnection*, std::pair<boost::signals::connection, boost::signals::connection> >::iterator it = connections.find(con);
-
-  if(it == connections.end())
-    return;
-
-  delete it->first;
-  connections.erase(it);
+void Listener::handleDisconnect(boost::shared_ptr<ServerConnection> con) {
+  connections.erase(con);
 }
 
 
-Listener::Listener(const std::string &x905CertFile0, const std::string &x905KeyFile0, const IPAddress &address0) throw(Exception)
-: x905CertFile(x905CertFile0), x905KeyFile(x905KeyFile0), address(address0) {
-  gnutls_dh_params_init(&dh_params);
-  gnutls_dh_params_generate2(dh_params, 768);
+Listener::Listener(const std::string &x905CertFile0, const std::string &x905KeyFile0,
+    const boost::asio::ip::tcp::endpoint &address0) throw(Exception)
+: x905CertFile(x905CertFile0), x905KeyFile(x905KeyFile0), address(address0), acceptor(Connection::ioService, address),
+sslContext(Connection::ioService, boost::asio::ssl::context::sslv23)
+{
+  sslContext.set_options(boost::asio::ssl::context::default_workarounds
+      | boost::asio::ssl::context::no_sslv2
+      | boost::asio::ssl::context::single_dh_use);
+  sslContext.use_certificate_chain_file(x905CertFile0);
+  sslContext.use_private_key_file(x905KeyFile0, boost::asio::ssl::context::pem);
 
-  sock = socket(PF_INET, SOCK_STREAM, 0);
 
-  if(sock < 0)
-    throw Exception("socket()", Exception::INTERNAL_ERRNO, errno);
 
-  // Set non-blocking flag
-  int flags = fcntl(sock, F_GETFL, 0);
-
-  if(flags < 0) {
-    close(sock);
-
-    throw Exception("fcntl()", Exception::INTERNAL_ERRNO, errno);
-  }
-
-  fcntl(sock, F_SETFL, flags | O_NONBLOCK);
-
-  // Don't linger
-  struct linger linger = {1, 0};
-  setsockopt(sock, SOL_SOCKET, SO_LINGER, &linger, sizeof(linger));
-
-  if(bind(sock, address.getSockAddr(), address.getSockAddrLength()) < 0) {
-    close(sock);
-
-    throw Exception("bind()", Exception::INTERNAL_ERRNO, errno);
-  }
-
-  if(listen(sock, 64) < 0) {
-    close(sock);
-
-    throw Exception("listen()", Exception::INTERNAL_ERRNO, errno);
-  }
-
-  FdManager::get()->registerFd(sock, boost::bind(&Listener::acceptHandler, this, _1), POLLIN);
+  boost::shared_ptr<ServerConnection> con(new ServerConnection(sslContext));
+  acceptor.async_accept(con->socket.lowest_layer(), boost::bind(&Listener::handleAccept, this, boost::asio::placeholders::error, con));
 }
 
 Listener::~Listener() {
-  for(std::map<ServerConnection*,std::pair<boost::signals::connection, boost::signals::connection> >::iterator con = connections.begin(); con != connections.end(); ++con) {
+  for(std::map<boost::shared_ptr<ServerConnection>,std::pair<boost::signals::connection, boost::signals::connection> >::iterator con = connections.begin(); con != connections.end(); ++con) {
     con->first->disconnect();
-    delete con->first;
+    // TODO wait...
   }
-
-  shutdown(sock, SHUT_RDWR);
-  close(sock);
-
-  gnutls_dh_params_deinit(dh_params);
 }
 
 }
diff --git a/src/Net/Listener.h b/src/Net/Listener.h
index 26dffab..0833cdf 100644
--- a/src/Net/Listener.h
+++ b/src/Net/Listener.h
@@ -20,46 +20,45 @@
 #ifndef MAD_NET_LISTENER_H_
 #define MAD_NET_LISTENER_H_
 
-#include "IPAddress.h"
-
-#include <gnutls/gnutls.h>
 #include <map>
 #include <string>
 
-#include <boost/signal.hpp>
+#include "Connection.h"
+#include "Exception.h"
 
 namespace Mad {
 namespace Net {
 
-class ServerConnection;
-
 // TODO XXX Thread-safeness XXX
-class Listener {
+class Listener : boost::noncopyable {
   private:
-    std::string x905CertFile, x905KeyFile;
-    IPAddress address;
-    int sock;
+    class ServerConnection : public Connection {
+      public:
+        friend class Listener;
 
-    gnutls_dh_params_t dh_params;
+        ServerConnection(boost::asio::ssl::context &sslContext) : Connection(sslContext) {}
+    };
 
-    std::map<ServerConnection*, std::pair<boost::signals::connection, boost::signals::connection> > connections;
+    std::string x905CertFile, x905KeyFile;
+    boost::asio::ip::tcp::endpoint address;
+    boost::asio::ip::tcp::acceptor acceptor;
+    boost::asio::ssl::context sslContext;
 
-    boost::signal1<void, ServerConnection*> signal;
+    std::map<boost::shared_ptr<ServerConnection>, std::pair<boost::signals::connection, boost::signals::connection> > connections;
 
-    void acceptHandler(int);
+    boost::signal1<void, boost::shared_ptr<Connection> > signal;
 
-    void connectHandler(ServerConnection *con);
-    void disconnectHandler(ServerConnection *con);
+    void handleAccept(const boost::system::error_code &error, boost::shared_ptr<ServerConnection> con);
 
-    // Prevent shallow copy
-    Listener(const Listener &o);
-    Listener& operator=(const Listener &o);
+    void handleConnect(boost::shared_ptr<ServerConnection> con);
+    void handleDisconnect(boost::shared_ptr<ServerConnection> con);
 
   public:
-    Listener(const std::string &x905CertFile0, const std::string &x905KeyFile0, const IPAddress &address0 = IPAddress()) throw(Exception);
+    Listener(const std::string &x905CertFile0, const std::string &x905KeyFile0,
+        const boost::asio::ip::tcp::endpoint &address0 = boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v4(), 6666)) throw(Exception);
     virtual ~Listener();
 
-    boost::signal1<void, ServerConnection*>& signalNewConnection() {return signal;}
+    boost::signal1<void, boost::shared_ptr<Connection> >& signalNewConnection() {return signal;}
 };
 
 }
diff --git a/src/Net/ServerConnection.cpp b/src/Net/ServerConnection.cpp
deleted file mode 100644
index 1f01ce5..0000000
--- a/src/Net/ServerConnection.cpp
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
- * ServerConnection.cpp
- *
- * Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
- *
- * This program is free software: you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- * See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "ServerConnection.h"
-#include "FdManager.h"
-#include "IPAddress.h"
-
-#include <boost/thread/locks.hpp>
-
-#include <cstring>
-#include <cerrno>
-#include <sys/socket.h>
-#include <fcntl.h>
-
-namespace Mad {
-namespace Net {
-
-void ServerConnection::connectionHeaderReceiveHandler(const void *data, unsigned long length) {
-  if(length != sizeof(ConnectionHeader))
-    // Error... disconnect
-    return;
-
-  const ConnectionHeader *header = (const ConnectionHeader*)data;
-
-  if(header->m != 'M' || header->a != 'A' || header->d != 'D')
-    // Error... disconnect
-    return;
-
-  if(header->protVerMin > 1 || header->protVerMax < 1)
-    // Unsupported protocol... disconnect
-    return;
-
-  if(header->type == 'C')
-    daemon = false;
-  else if(header->type == 'D')
-    daemon = true;
-  else
-    // Error... disconnect
-    return;
-
-  ConnectionHeader header2 = {'M', 'A', 'D', 0, 0, 1, 1, 0};
-
-  enterReceiveLoop();
-
-  rawSend((uint8_t*)&header2, sizeof(header2));
-}
-
-ServerConnection::ServerConnection(int sock0, const IPAddress &address, gnutls_dh_params_t dh_params, const std::string &x905CertFile, const std::string &x905KeyFile)
-: daemon(false) {
-  boost::unique_lock<boost::shared_mutex> lock(stateLock);
-
-  sock = sock0;
-
-  peer = new IPAddress(address);
-
-  gnutls_certificate_set_dh_params(x509_cred, dh_params);
-  gnutls_certificate_set_x509_key_file(x509_cred, x905CertFile.c_str(), x905KeyFile.c_str(), GNUTLS_X509_FMT_PEM);
-
-  gnutls_init(&session, GNUTLS_SERVER);
-  gnutls_set_default_priority(session);
-  gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred);
-  gnutls_transport_set_ptr(session, (gnutls_transport_ptr_t)sock);
-
-  FdManager::get()->registerFd(sock, boost::bind(&ServerConnection::sendReceive, this, _1));
-
-  state = CONNECT;
-
-  lock.unlock();
-
-  updateEvents();
-}
-
-}
-}
diff --git a/src/Net/ServerConnection.h b/src/Net/ServerConnection.h
deleted file mode 100644
index d52cd7c..0000000
--- a/src/Net/ServerConnection.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * ServerConnection.h
- *
- * Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
- *
- * This program is free software: you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- * See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef MAD_NET_SERVERCONNECTION_H_
-#define MAD_NET_SERVERCONNECTION_H_
-
-#include "Connection.h"
-#include <string>
-
-namespace Mad {
-namespace Net {
-
-class Listener;
-
-class ServerConnection : public Connection {
-  friend class Listener;
-
-  private:
-    IPAddress *peer;
-
-    bool daemon;
-
-    gnutls_anon_server_credentials_t anoncred;
-
-    void connectionHeaderReceiveHandler(const void *data, unsigned long length);
-
-  protected:
-    ServerConnection(int sock0, const IPAddress &address, gnutls_dh_params_t dh_params, const std::string &x905certFile, const std::string &x905keyFile);
-
-    virtual void connectionHeader() {
-      rawReceive(sizeof(ConnectionHeader), boost::bind(&ServerConnection::connectionHeaderReceiveHandler, this, _1, _2));
-    }
-
-  public:
-    bool isDaemonConnection() const {return daemon;}
-};
-
-}
-}
-
-#endif /*MAD_NET_SERVERCONNECTION_H_*/
diff --git a/src/Net/ThreadManager.cpp b/src/Net/ThreadManager.cpp
index 71a754e..0fb0716 100644
--- a/src/Net/ThreadManager.cpp
+++ b/src/Net/ThreadManager.cpp
@@ -18,11 +18,13 @@
  */
 
 #include "ThreadManager.h"
-#include "FdManager.h"
+#include "Connection.h"
 
 #include <Common/Logger.h>
 #include <Common/LogManager.h>
 
+#include <boost/bind.hpp>
+
 #include <fcntl.h>
 
 namespace Mad {
@@ -97,10 +99,12 @@ void ThreadManager::doInit() {
 
   threadLock.lock();
 
+  ioWorker.reset(new boost::asio::io_service::work(Connection::ioService));
+
   mainThreadId = boost::this_thread::get_id();
-  workerThread = new boost::thread(std::mem_fun(&ThreadManager::workerFunc), this);
-  loggerThread = new boost::thread(std::mem_fun(&Common::LogManager::loggerThread), Common::LogManager::get());
-  ioThread = new boost::thread(std::mem_fun(&FdManager::ioThread), FdManager::get());
+  workerThread = new boost::thread(&ThreadManager::workerFunc, this);
+  loggerThread = new boost::thread(&Common::LogManager::loggerThread, Common::LogManager::get());
+  ioThread = new boost::thread((std::size_t(boost::asio::io_service::*)())&boost::asio::io_service::run, &Connection::ioService);
 
   threadLock.unlock();
 }
@@ -128,7 +132,7 @@ void ThreadManager::doDeinit() {
   threads.join_all();
 
   // IO thread is next
-  FdManager::get()->stopIOThread();
+  ioWorker.reset();
   ioThread->join();
   delete ioThread;
 
diff --git a/src/Net/ThreadManager.h b/src/Net/ThreadManager.h
index fd903af..2c57747 100644
--- a/src/Net/ThreadManager.h
+++ b/src/Net/ThreadManager.h
@@ -27,7 +27,8 @@
 #include <queue>
 #include <set>
 
-#include <boost/function.hpp>
+#include <boost/asio.hpp>
+
 #include <boost/thread/thread.hpp>
 #include <boost/thread/condition_variable.hpp>
 #include <boost/thread/locks.hpp>
@@ -50,11 +51,14 @@ class ThreadManager : public Common::Initializable {
     boost::condition_variable workCond;
     std::queue<boost::function0<void> > work;
 
+    boost::scoped_ptr<boost::asio::io_service::work> ioWorker;
+
     static ThreadManager threadManager;
 
     ThreadManager() {}
 
     void workerFunc();
+    void ioFunc();
 
     void threadFinished(boost::thread *thread) {
       threadLock.lock();