Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdenetwork@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

46 files changed, 10016 insertions, 0 deletions

diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/Makefile.am b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/Makefile.am
new file mode 100644
index 00000000..c935a6bd
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/Makefile.am
@@ -0,0 +1 @@
+SUBDIRS=base client
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/Makefile.am b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/Makefile.am
new file mode 100644
index 00000000..6cc30f15
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/Makefile.am
@@ -0,0 +1,47 @@
+## Does not compile with final
+KDE_OPTIONS = nofinal
+
+libcricketp2pbase_la_SOURCES = stun.cc \
+			       port.cc \
+			       udpport.cc \
+			       tcpport.cc \
+			       helpers.cc \
+			       sessionmanager.cc \
+			       session.cc \
+			       p2psocket.cc \
+			       relayport.cc \
+			       stunrequest.cc \
+			       stunport.cc \
+			       socketmanager.cc 
+
+noinst_HEADERS =               candidate.h \
+                               portallocator.h \
+			       relayport.h \
+		     	       session.h \
+		       	       sessionmessage.h \
+			       stunport.h \
+			       tcpport.h \
+                               helpers.h \
+			       port.h \
+		       	       sessionid.h \
+			       socketmanager.h \
+			       stunrequest.h \
+			       udpport.h \
+                               p2psocket.h \
+			       sessiondescription.h \
+			       sessionmanager.h \
+			       stun.h  \
+			       relayserver.h \
+			       stunserver.h
+
+AM_CPPFLAGS = -DPOSIX  $(all_includes) -I$(srcdir)/../../..
+
+bin_PROGRAMS = relayserver stunserver
+relayserver_SOURCES = relayserver.cc relayserver_main.cc
+relayserver_LDADD = ../../base/libcricketbase.la libcricketp2pbase.la -lpthread
+stunserver_SOURCES = stunserver.cc stunserver_main.cc
+stunserver_LDADD = ../../base/libcricketbase.la libcricketp2pbase.la -lpthread
+
+noinst_LTLIBRARIES = libcricketp2pbase.la
+
+DEFAULT_INCLUDES = -I$(srcdir)/../../..
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/candidate.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/candidate.h
new file mode 100644
index 00000000..c2f974b8
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/candidate.h
@@ -0,0 +1,118 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _CANDIDATE_H_
+#define _CANDIDATE_H_
+
+#include <string>
+#include <sstream>
+#include "talk/base/socketaddress.h"
+
+namespace cricket {
+
+// Candidate for ICE based connection discovery.
+
+class Candidate {
+public:
+
+  const std::string & name() const { return name_; }
+  void set_name(const std::string & name) { name_ = name; }
+
+  const std::string & protocol() const { return protocol_; }
+  void set_protocol(const std::string & protocol) { protocol_ = protocol; }
+
+  const SocketAddress & address() const { return address_; }
+  void set_address(const SocketAddress & address) { address_ = address; }
+
+  const float preference() const { return preference_; }
+  void set_preference(const float preference) { preference_ = preference; }
+  const std::string preference_str() const {
+    std::ostringstream ost;
+    ost << preference_;
+    return ost.str();
+  }
+  void set_preference_str(const std::string & preference) {
+    std::istringstream ist(preference);
+    ist >> preference_;
+  }
+
+  const std::string & username() const { return username_; }
+  void set_username(const std::string & username) { username_ = username; }
+
+  const std::string & password() const { return password_; }
+  void set_password(const std::string & password) { password_ = password; }
+
+  const std::string & type() const { return type_; }
+  void set_type(const std::string & type) { type_ = type; }
+
+  const std::string & network_name() const { return network_name_; }
+  void set_network_name(const std::string & network_name) {
+    network_name_ = network_name;
+  }
+
+  // Candidates in a new generation replace those in the old generation.
+  uint32 generation() const { return generation_; }
+  void set_generation(uint32 generation) { generation_ = generation; }
+  const std::string generation_str() const {
+    std::ostringstream ost;
+    ost << generation_;
+    return ost.str();
+  }
+  void set_generation_str(const std::string& str) {
+    std::istringstream ist(str);
+    ist >> generation_;
+  }
+
+  // Determines whether this candidate is equivalent to the given one.
+  bool IsEquivalent(const Candidate& c) const {
+    // We ignore the network name, since that is just debug information, and
+    // the preference, since that should be the same if the rest is (and it's
+    // a float so equality checking is always worrisome).
+    return (name_ == c.name_) &&
+           (protocol_ == c.protocol_) &&
+           (address_ == c.address_) &&
+           (username_ == c.username_) &&
+           (password_ == c.password_) &&
+           (type_ == c.type_) &&
+           (generation_ == c.generation_);
+  }
+
+private:
+  std::string name_;
+  std::string protocol_;
+  SocketAddress address_;
+  float preference_;
+  std::string username_;
+  std::string password_;
+  std::string type_;
+  std::string network_name_;
+  uint32 generation_;
+};
+
+} // namespace cricket
+
+#endif // _CANDIDATE_H_
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/helpers.cc b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/helpers.cc
new file mode 100644
index 00000000..83e02a27
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/helpers.cc
@@ -0,0 +1,129 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "talk/p2p/base/helpers.h"
+#include "talk/base/jtime.h"
+#include <cstdlib>
+#include <cassert>
+
+// TODO: Change this implementation to use OpenSSL's RAND_bytes.  That will
+//       give cryptographically random values on all platforms.
+
+#ifdef WIN32
+#include <time.h>
+#include <windows.h>
+#endif
+
+namespace cricket {
+
+static long g_seed = 1L;
+
+int GetRandom() {
+  return ((g_seed = g_seed * 214013L + 2531011L) >> 16) & 0x7fff;
+}
+
+void SetRandomSeed(unsigned long seed)
+{
+  g_seed = (long)seed;
+}
+
+static bool s_initrandom;
+
+void InitRandom(const char *client_unique, size_t len) {
+  s_initrandom = true;
+
+  // Hash this string - unique per client
+
+  uint32 hash = 0;
+  if (client_unique != NULL) {
+    for (int i = 0; i < (int)len; i++)
+      hash = ((hash << 2) + hash) + client_unique[i];
+  }
+
+  // Now initialize the seed against a high resolution
+  // counter
+
+#ifdef WIN32
+  LARGE_INTEGER big;
+  QueryPerformanceCounter(&big);
+  SetRandomSeed(big.LowPart ^ hash);
+#else
+  SetRandomSeed(Time() ^ hash);
+#endif
+}
+
+const char BASE64[64] = {
+  'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
+  'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
+  'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
+  'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
+  '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/'
+};
+
+// Generates a random string of the given length.  We generate base64 values so
+// that they will be printable, though that's not necessary.
+
+std::string CreateRandomString(int len) {
+  // Random number generator should of been initialized!
+  assert(s_initrandom);
+  if (!s_initrandom)
+    InitRandom(0, 0);
+
+  std::string str;
+  for (int i = 0; i < len; i++)
+#if defined(_MSC_VER) && _MSC_VER < 1300
+    str.insert(str.end(), BASE64[GetRandom() & 63]);
+#else
+    str.push_back(BASE64[GetRandom() & 63]);
+#endif
+  return str;
+}
+
+uint32 CreateRandomId() {
+  uint8 b1 = (uint8)(GetRandom() & 255);
+  uint8 b2 = (uint8)(GetRandom() & 255);
+  uint8 b3 = (uint8)(GetRandom() & 255);
+  uint8 b4 = (uint8)(GetRandom() & 255);
+  return b1 | (b2 << 8) | (b3 << 16) | (b4 << 24);
+}
+
+bool IsBase64Char(char ch) {
+  return (('A' <= ch) && (ch <= 'Z')) ||
+         (('a' <= ch) && (ch <= 'z')) ||
+         (('0' <= ch) && (ch <= '9')) ||
+         (ch == '+') || (ch == '/');
+}
+
+bool IsBase64Encoded(const std::string& str) {
+  for (size_t i = 0; i < str.size(); ++i) {
+    if (!IsBase64Char(str.at(i)))
+      return false;
+  }
+  return true;
+}
+
+} // namespace cricket
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/helpers.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/helpers.h
new file mode 100644
index 00000000..1c8dfa7f
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/helpers.h
@@ -0,0 +1,51 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __HELPERS_H__
+#define __HELPERS_H__
+
+#include "talk/base/basictypes.h"
+#include <string>
+
+namespace cricket {
+
+// srand initializer
+void InitRandom(const char *client_unique, size_t len);
+
+// Generates a (cryptographically) random string of the given length.
+std::string CreateRandomString(int length);
+
+// Generates a random id
+uint32 CreateRandomId();
+
+// Determines whether the given string consists entirely of valid base64
+// encoded characters.
+bool IsBase64Encoded(const std::string& str);
+
+} // namespace cricket
+
+#endif // __HELPERS_H__
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/p2psocket.cc b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/p2psocket.cc
new file mode 100644
index 00000000..eb53efeb
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/p2psocket.cc
@@ -0,0 +1,910 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+// Description of the P2PSocket class in P2PSocket.h
+//
+#if defined(_MSC_VER) && _MSC_VER < 1300
+#pragma warning(disable:4786)
+#endif
+#include <iostream>
+#include <cassert>
+#include "talk/base/logging.h" 
+#include "talk/p2p/base/p2psocket.h"
+#include <errno.h>
+namespace {
+
+// messages for queuing up work for ourselves
+const uint32 MSG_SORT = 1;
+const uint32 MSG_PING = 2;
+const uint32 MSG_ALLOCATE = 3;
+
+// When the socket is unwritable, we will use 10 Kbps (ignoring IP+UDP headers)
+// for pinging.  When the socket is writable, we will use only 1 Kbps because
+// we don't want to degrade the quality on a modem.  These numbers should work
+// well on a 28.8K modem, which is the slowest connection on which the voice
+// quality is reasonable at all.
+static const uint32 PING_PACKET_SIZE = 60 * 8;
+static const uint32 WRITABLE_DELAY = 1000 * PING_PACKET_SIZE / 1000;   // 480ms
+static const uint32 UNWRITABLE_DELAY = 1000 * PING_PACKET_SIZE / 10000;// 50ms
+
+// If there is a current writable connection, then we will also try hard to
+// make sure it is pinged at this rate.
+static const uint32 MAX_CURRENT_WRITABLE_DELAY = 900; // 2*WRITABLE_DELAY - bit
+
+// The minimum improvement in MOS that justifies a switch.
+static const double kMinImprovement = 10;
+
+// Amount of time that we wait when *losing* writability before we try doing
+// another allocation.
+static const int kAllocateDelay = 1 * 1000; // 1 second
+
+// We will try creating a new allocator from scratch after a delay of this
+// length without becoming writable (or timing out).
+static const int kAllocatePeriod = 20 * 1000; // 20 seconds
+
+cricket::Port::CandidateOrigin GetOrigin(cricket::Port* port,
+                                         cricket::Port* origin_port) {
+  if (!origin_port)
+    return cricket::Port::ORIGIN_MESSAGE;
+  else if (port == origin_port)
+    return cricket::Port::ORIGIN_THIS_PORT;
+  else
+    return cricket::Port::ORIGIN_OTHER_PORT;
+}
+
+// Compares two connections based only on static information about them.
+int CompareConnectionCandidates(cricket::Connection* a,
+                                cricket::Connection* b) {
+  // Combine local and remote preferences
+  assert(a->local_candidate().preference() == a->port()->preference());
+  assert(b->local_candidate().preference() == b->port()->preference());
+  double a_pref = a->local_candidate().preference() 
+                * a->remote_candidate().preference();
+  double b_pref = b->local_candidate().preference() 
+                * b->remote_candidate().preference();
+
+  // Now check combined preferences. Lower values get sorted last.
+  if (a_pref > b_pref)
+    return 1;
+  if (a_pref < b_pref)
+    return -1;
+
+  return 0;
+}
+
+// Compare two connections based on their writability and static preferences.
+int CompareConnections(cricket::Connection *a, cricket::Connection *b) {
+  // Sort based on write-state.  Better states have lower values.
+  if (a->write_state() < b->write_state())
+    return 1;
+  if (a->write_state() > b->write_state())
+    return -1;
+
+  // Compare the candidate information.
+  return CompareConnectionCandidates(a, b);
+}
+
+// Wraps the comparison connection into a less than operator that puts higher
+// priority writable connections first.
+class ConnectionCompare {
+public:
+  bool operator()(const cricket::Connection *ca, 
+                  const cricket::Connection *cb) {
+    cricket::Connection* a = const_cast<cricket::Connection*>(ca);
+    cricket::Connection* b = const_cast<cricket::Connection*>(cb);
+
+    // Compare first on writability and static preferences.
+    int cmp = CompareConnections(a, b);
+    if (cmp > 0)
+      return true;
+    if (cmp < 0)
+      return false;
+    
+    // Otherwise, sort based on latency estimate.
+    return a->rtt() < b->rtt();
+
+    // Should we bother checking for the last connection that last received 
+    // data? It would help rendezvous on the connection that is also receiving
+    // packets.
+    //
+    // TODO: Yes we should definitely do this.  The TCP protocol gains
+    // efficiency by being used bidirectionally, as opposed to two separate
+    // unidirectional streams.  This test should probably occur before
+    // comparison of local prefs (assuming combined prefs are the same).  We
+    // need to be careful though, not to bounce back and forth with both sides
+    // trying to rendevous with the other.
+  }
+};
+
+// Determines whether we should switch between two connections, based first on
+// static preferences and then (if those are equal) on latency estimates.
+bool ShouldSwitch(cricket::Connection* a_conn, cricket::Connection* b_conn) {
+  if (a_conn == b_conn)
+    return false;
+
+  if ((a_conn == NULL) || (b_conn == NULL))  // don't think the latter should happen
+    return true;
+
+  int prefs_cmp = CompareConnections(a_conn, b_conn);
+  if (prefs_cmp < 0)
+    return true;
+  if (prefs_cmp > 0)
+    return false;
+
+  return b_conn->rtt() <= a_conn->rtt() + kMinImprovement;
+}
+
+}  // unnamed namespace
+
+namespace cricket {
+
+P2PSocket::P2PSocket(const std::string &name, PortAllocator *allocator)
+: worker_thread_(Thread::Current()), name_(name), allocator_(allocator), 
+  error_(0), state_(STATE_CONNECTING), waiting_for_signaling_(false),
+  best_connection_(NULL), pinging_started_(false), sort_dirty_(false), 
+  was_writable_(false), was_timed_out_(true) {
+}
+
+P2PSocket::~P2PSocket() {
+  assert(worker_thread_ == Thread::Current());
+
+  thread()->Clear(this);
+
+  for (uint32 i = 0; i < allocator_sessions_.size(); ++i)
+    delete allocator_sessions_[i];
+}
+
+// Add the allocator session to our list so that we know which sessions
+// are still active.
+void P2PSocket::AddAllocatorSession(PortAllocatorSession* session) {
+  session->set_generation(static_cast<uint32>(allocator_sessions_.size()));
+  allocator_sessions_.push_back(session);
+
+  // We now only want to apply new candidates that we receive to the ports
+  // created by this new session because these are replacing those of the
+  // previous sessions.
+  ports_.clear();
+
+  session->SignalPortReady.connect(this, &P2PSocket::OnPortReady);
+  session->SignalCandidatesReady.connect(this, &P2PSocket::OnCandidatesReady);
+  session->GetInitialPorts();
+  if (pinging_started_)
+    session->StartGetAllPorts();
+}
+
+// Go into the state of processing candidates, and running in general
+void P2PSocket::StartProcessingCandidates() {
+  assert(worker_thread_ == Thread::Current());
+
+  // Kick off an allocator session
+  OnAllocate();
+
+  // Start pinging as the ports come in.
+  thread()->Post(this, MSG_PING);
+}
+
+// Reset the socket, clear up any previous allocations and start over
+void P2PSocket::Reset() {
+  assert(worker_thread_ == Thread::Current());
+
+  // Get rid of all the old allocators.  This should clean up everything.
+  for (uint32 i = 0; i < allocator_sessions_.size(); ++i)
+    delete allocator_sessions_[i];
+
+  allocator_sessions_.clear();
+  ports_.clear();
+  connections_.clear();
+  best_connection_ = NULL;
+
+  // Forget about all of the candidates we got before.
+  remote_candidates_.clear();
+
+  // Revert to the connecting state.
+  set_state(STATE_CONNECTING);
+
+  // Reinitialize the rest of our state.
+  waiting_for_signaling_ = false;
+  pinging_started_ = false;
+  sort_dirty_ = false;
+  was_writable_ = false;
+  was_timed_out_ = true;
+
+  // Start a new allocator.
+  OnAllocate();
+
+  // Start pinging as the ports come in.
+  thread()->Clear(this);
+  thread()->Post(this, MSG_PING);
+}
+
+// A new port is available, attempt to make connections for it
+void P2PSocket::OnPortReady(PortAllocatorSession *session, Port* port) {
+  assert(worker_thread_ == Thread::Current());
+
+  // Set in-effect options on the new port
+  for (OptionMap::const_iterator it = options_.begin(); it != options_.end(); ++it) {
+    int val = port->SetOption(it->first, it->second);
+    if (val < 0) {
+      LOG(WARNING) << "SetOption(" << it->first << ", " << it->second << ") failed: " << port->GetError();
+    }
+  }
+
+  // Remember the ports and candidates, and signal that candidates are ready.
+  // The session will handle this, and send an initiate/accept/modify message
+  // if one is pending.
+
+  ports_.push_back(port);
+  port->SignalUnknownAddress.connect(this, &P2PSocket::OnUnknownAddress);
+  port->SignalDestroyed.connect(this, &P2PSocket::OnPortDestroyed);
+
+  // Attempt to create a connection from this new port to all of the remote
+  // candidates that we were given so far.
+
+  std::vector<RemoteCandidate>::iterator iter;
+  for (iter = remote_candidates_.begin(); iter != remote_candidates_.end(); 
+       ++iter)
+    CreateConnection(port, *iter, iter->origin_port(), false);
+
+  SortConnections();
+}
+
+// A new candidate is available, let listeners know
+void P2PSocket::OnCandidatesReady(PortAllocatorSession *session, 
+                                  const std::vector<Candidate>& candidates) {
+  SignalCandidatesReady(this, candidates);
+}
+
+// Handle stun packets                                  
+void P2PSocket::OnUnknownAddress(Port *port,
+                                 const SocketAddress &address,
+                                 StunMessage *stun_msg,
+                                 const std::string &remote_username) {
+  assert(worker_thread_ == Thread::Current());
+
+  // Port has received a valid stun packet from an address that no Connection
+  // is currently available for. See if the remote user name is in the remote
+  // candidate list. If it isn't return error to the stun request.
+
+  const Candidate *candidate = NULL;
+  std::vector<RemoteCandidate>::iterator it;
+  for (it = remote_candidates_.begin(); it != remote_candidates_.end(); ++it) {
+    if ((*it).username() == remote_username) {
+      candidate = &(*it);
+      break;
+    }
+  }
+  if (candidate == NULL) {
+    // Don't know about this username, the request is bogus
+    // This sometimes happens if a binding response comes in before the ACCEPT
+    // message.  It is totally valid; the retry state machine will try again.
+
+    port->SendBindingErrorResponse(stun_msg, address, 
+        STUN_ERROR_STALE_CREDENTIALS, STUN_ERROR_REASON_STALE_CREDENTIALS);
+    delete stun_msg;
+    return;
+  }
+
+  // Check for connectivity to this address. Create connections
+  // to this address across all local ports. First, add this as a new remote
+  // address
+
+  Candidate new_remote_candidate = *candidate;
+  new_remote_candidate.set_address(address);
+  //new_remote_candidate.set_protocol(port->protocol());
+
+  // This remote username exists. Now create connections using this candidate,
+  // and resort
+
+  if (CreateConnections(new_remote_candidate, port, true)) {
+    // Send the pinger a successful stun response.
+    port->SendBindingResponse(stun_msg, address);
+
+    // Update the list of connections since we just added another.  We do this
+    // after sending the response since it could (in principle) delete the
+    // connection in question.
+    SortConnections();
+  } else {
+    // Hopefully this won't occur, because changing a destination address
+    // shouldn't cause a new connection to fail
+    assert(false);
+    port->SendBindingErrorResponse(stun_msg, address, STUN_ERROR_SERVER_ERROR,
+        STUN_ERROR_REASON_SERVER_ERROR);
+  }
+
+  delete stun_msg;
+}
+
+// We received a candidate from the other side, make connections so we
+// can try to use these remote candidates with our local candidates.                                 
+void P2PSocket::AddRemoteCandidates(
+    const std::vector<Candidate> &remote_candidates) {
+  assert(worker_thread_ == Thread::Current());
+
+  // The remote candidates have come in. Remember them and start to establish
+  // connections
+
+  std::vector<Candidate>::const_iterator it;
+  for (it = remote_candidates.begin(); it != remote_candidates.end(); ++it)
+    CreateConnections(*it, NULL, false);
+
+  // Resort the connections 
+
+  SortConnections();
+}
+
+// Creates connections from all of the ports that we care about to the given
+// remote candidate.  The return value is true iff we created a connection from
+// the origin port.
+bool P2PSocket::CreateConnections(const Candidate &remote_candidate,
+                                  Port* origin_port,
+                                  bool readable) {
+  assert(worker_thread_ == Thread::Current());
+
+  // Add a new connection for this candidate to every port that allows such a
+  // connection (i.e., if they have compatible protocols) and that does not
+  // already have a connection to an equivalent candidate.  We must be careful
+  // to make sure that the origin port is included, even if it was pruned,
+  // since that may be the only port that can create this connection.
+
+  bool created = false;
+
+  std::vector<Port *>::reverse_iterator it;
+  for (it = ports_.rbegin(); it != ports_.rend(); ++it) {
+    if (CreateConnection(*it, remote_candidate, origin_port, readable)) {
+      if (*it == origin_port)
+        created = true;
+    }
+  }
+
+  if ((origin_port != NULL) &&
+      find(ports_.begin(), ports_.end(), origin_port) == ports_.end()) {
+    if (CreateConnection(origin_port, remote_candidate, origin_port, readable))
+      created = true;
+  }
+
+  // Remember this remote candidate so that we can add it to future ports.
+  RememberRemoteCandidate(remote_candidate, origin_port);
+
+  return created;
+}
+
+// Setup a connection object for the local and remote candidate combination.
+// And then listen to connection object for changes.
+bool P2PSocket::CreateConnection(Port* port,
+                                 const Candidate& remote_candidate,
+                                 Port* origin_port,
+                                 bool readable) {
+  // Look for an existing connection with this remote address.  If one is not
+  // found, then we can create a new connection for this address.
+  Connection* connection = port->GetConnection(remote_candidate.address());
+  if (connection != NULL) {
+    // It is not legal to try to change any of the parameters of an existing
+    // connection; however, the other side can send a duplicate candidate.
+    if (!remote_candidate.IsEquivalent(connection->remote_candidate())) {
+      LOG(INFO) << "Attempt to change a remote candidate";
+      return false;
+    }
+  } else {
+    Port::CandidateOrigin origin = GetOrigin(port, origin_port);
+    connection = port->CreateConnection(remote_candidate, origin);
+    if (!connection)
+      return false;
+
+    connections_.push_back(connection);
+    connection->SignalReadPacket.connect(this, &P2PSocket::OnReadPacket);
+    connection->SignalStateChange.connect(this, &P2PSocket::OnConnectionStateChange);
+    connection->SignalDestroyed.connect(this, &P2PSocket::OnConnectionDestroyed);
+  }
+
+  // If we are readable, it is because we are creating this in response to a
+  // ping from the other side.  This will cause the state to become readable.
+  if (readable)
+    connection->ReceivedPing();
+
+  return true;
+}
+
+// Maintain our remote candidate list, adding this new remote one.
+void P2PSocket::RememberRemoteCandidate(const Candidate& remote_candidate,
+                                        Port* origin_port) {
+  // Remove any candidates whose generation is older than this one.  The
+  // presence of a new generation indicates that the old ones are not useful.
+  uint32 i = 0;
+  while (i < remote_candidates_.size()) {
+    if (remote_candidates_[i].generation() < remote_candidate.generation()) {
+      remote_candidates_.erase(remote_candidates_.begin() + i);
+      LOG(INFO) << "Pruning candidate from old generation: "
+                << remote_candidates_[i].address().ToString();
+
+    } else {
+      i += 1;
+    }
+  }
+
+  // Make sure this candidate is not a duplicate.
+  for (uint32 i = 0; i < remote_candidates_.size(); ++i) {
+    if (remote_candidates_[i].IsEquivalent(remote_candidate)) {
+      LOG(INFO) << "Duplicate candidate: "
+                << remote_candidate.address().ToString();
+      return;
+    }
+  }
+
+  // Try this candidate for all future ports.
+  remote_candidates_.push_back(RemoteCandidate(remote_candidate, origin_port));
+
+  // We have some candidates from the other side, we are now serious about
+  // this connection.  Let's do the StartGetAllPorts thing.
+  if (!pinging_started_) {
+    pinging_started_ = true;
+    for (size_t i = 0; i < allocator_sessions_.size(); ++i) {
+      if (!allocator_sessions_[i]->IsGettingAllPorts())
+        allocator_sessions_[i]->StartGetAllPorts();
+    }
+  }
+}
+
+// Send data to the other side, using our best connection
+int P2PSocket::Send(const char *data, size_t len) {
+  // This can get called on any thread that is convenient to write from!
+  if (best_connection_ == NULL) {
+    error_ = EWOULDBLOCK;
+    return SOCKET_ERROR;
+  }
+  int sent = best_connection_->Send(data, len);
+  if (sent <= 0) {
+    assert(sent < 0);
+    error_ = best_connection_->GetError();
+  }
+  return sent;
+}
+
+// Monitor connection states
+void P2PSocket::UpdateConnectionStates() {
+  uint32 now = Time();
+
+  // We need to copy the list of connections since some may delete themselves
+  // when we call UpdateState.
+  for (uint32 i = 0; i < connections_.size(); ++i)
+    connections_[i]->UpdateState(now);
+}
+
+// Prepare for best candidate sorting
+void P2PSocket::RequestSort() {
+  if (!sort_dirty_) {
+    worker_thread_->Post(this, MSG_SORT);
+    sort_dirty_ = true;
+  }
+}
+
+// Sort the available connections to find the best one.  We also monitor
+// the number of available connections and the current state so that we 
+// can possibly kick off more allocators (for more connections).
+void P2PSocket::SortConnections() {
+  assert(worker_thread_ == Thread::Current());
+
+  // Make sure the connection states are up-to-date since this affects how they
+  // will be sorted.
+  UpdateConnectionStates();
+
+  // Any changes after this point will require a re-sort.
+  sort_dirty_ = false;
+
+  // Get a list of the networks that we are using.
+  std::set<Network*> networks;
+  for (uint32 i = 0; i < connections_.size(); ++i)
+    networks.insert(connections_[i]->port()->network());
+
+  // Find the best alternative connection by sorting.  It is important to note
+  // that amongst equal preference, writable connections, this will choose the
+  // one whose estimated latency is lowest.  So it is the only one that we
+  // need to consider switching to.
+
+  ConnectionCompare cmp;
+  std::stable_sort(connections_.begin(), connections_.end(), cmp);
+  Connection* top_connection = NULL;
+  if (connections_.size() > 0)
+    top_connection = connections_[0];
+
+  // If necessary, switch to the new choice.
+  if (ShouldSwitch(best_connection_, top_connection))
+    SwitchBestConnectionTo(top_connection);
+
+  // We can prune any connection for which there is a writable connection on
+  // the same network with better or equal prefences.  We leave those with
+  // better preference just in case they become writable later (at which point,
+  // we would prune out the current best connection).  We leave connections on
+  // other networks because they may not be using the same resources and they
+  // may represent very distinct paths over which we can switch.
+  std::set<Network*>::iterator network;
+  for (network = networks.begin(); network != networks.end(); ++network) {
+    Connection* primier = GetBestConnectionOnNetwork(*network);
+    if (!primier || (primier->write_state() != Connection::STATE_WRITABLE))
+      continue;
+
+    for (uint32 i = 0; i < connections_.size(); ++i) {
+      if ((connections_[i] != primier) &&
+          (connections_[i]->port()->network() == *network) &&
+          (CompareConnectionCandidates(primier, connections_[i]) >= 0)) {
+        connections_[i]->Prune();
+      }
+    }
+  }
+
+  // Count the number of connections in the various states.
+
+  int writable = 0;
+  int write_connect = 0;
+  int write_timeout = 0;
+
+  for (uint32 i = 0; i < connections_.size(); ++i) {
+    switch (connections_[i]->write_state()) {
+    case Connection::STATE_WRITABLE:
+      ++writable;
+      break;
+    case Connection::STATE_WRITE_CONNECT:
+      ++write_connect;
+      break;
+    case Connection::STATE_WRITE_TIMEOUT:
+      ++write_timeout;
+      break;
+    default:
+      assert(false);
+    }
+  }
+
+  if (writable > 0) {
+    HandleWritable();
+  } else if (write_connect > 0) {
+    HandleNotWritable();
+  } else {
+    HandleAllTimedOut();
+  }
+
+  // Notify of connection state change
+  SignalConnectionMonitor(this);
+}
+
+// Track the best connection, and let listeners know
+void P2PSocket::SwitchBestConnectionTo(Connection* conn) {
+  best_connection_ = conn;
+  if (best_connection_)
+    SignalConnectionChanged(this, 
+                            best_connection_->remote_candidate().address());
+}
+
+// We checked the status of our connections and we had at least one that
+// was writable, go into the writable state.
+void P2PSocket::HandleWritable() {
+  //
+  // One or more connections writable!
+  //
+  if (state_ != STATE_WRITABLE) {
+    for (uint32 i = 0; i < allocator_sessions_.size(); ++i) {
+      if (allocator_sessions_[i]->IsGettingAllPorts()) {
+        allocator_sessions_[i]->StopGetAllPorts();
+      }
+    }
+
+    // Stop further allocations.
+    thread()->Clear(this, MSG_ALLOCATE);
+  }
+
+  // We're writable, obviously we aren't timed out
+  was_writable_ = true;
+  was_timed_out_ = false;
+  set_state(STATE_WRITABLE);
+}
+
+// We checked the status of our connections and we didn't have any that
+// were writable, go into the connecting state (kick off a new allocator
+// session).
+void P2PSocket::HandleNotWritable() {
+  //
+  // No connections are writable but not timed out!
+  //
+  if (was_writable_) {
+    // If we were writable, let's kick off an allocator session immediately
+    was_writable_ = false;
+    OnAllocate();
+  }
+
+  // We were connecting, obviously not ALL timed out.
+  was_timed_out_ = false;
+  set_state(STATE_CONNECTING);
+}
+
+// We checked the status of our connections and not only weren't they writable
+// but they were also timed out, we really need a new allocator.
+void P2PSocket::HandleAllTimedOut() {
+  //
+  // No connections... all are timed out!
+  //
+  if (!was_timed_out_) {
+    // We weren't timed out before, so kick off an allocator now (we'll still
+    // be in the fully timed out state until the allocator actually gives back
+    // new ports)
+    OnAllocate();
+  }
+
+  // NOTE: we start was_timed_out_ in the true state so that we don't get
+  // another allocator created WHILE we are in the process of building up
+  // our first allocator.
+  was_timed_out_ = true;
+  was_writable_ = false;
+  set_state(STATE_CONNECTING);
+}
+
+// If we have a best connection, return it, otherwise return top one in the
+// list (later we will mark it best).
+Connection* P2PSocket::GetBestConnectionOnNetwork(Network* network) {
+  // If the best connection is on this network, then it wins.
+  if (best_connection_ && (best_connection_->port()->network() == network))
+    return best_connection_;
+
+  // Otherwise, we return the top-most in sorted order.
+  for (uint32 i = 0; i < connections_.size(); ++i) {
+    if (connections_[i]->port()->network() == network)
+      return connections_[i];
+  }
+
+  return NULL;
+}
+
+// Handle any queued up requests
+void P2PSocket::OnMessage(Message *pmsg) {
+  if (pmsg->message_id == MSG_SORT)
+    OnSort();
+  else if (pmsg->message_id == MSG_PING)
+    OnPing();
+  else if (pmsg->message_id == MSG_ALLOCATE)
+    OnAllocate();
+  else
+    assert(false);
+}
+
+// Handle queued up sort request
+void P2PSocket::OnSort() {
+  // Resort the connections based on the new statistics.
+  SortConnections();
+}
+
+// Handle queued up ping request
+void P2PSocket::OnPing() {
+  // Make sure the states of the connections are up-to-date (since this affects
+  // which ones are pingable).
+  UpdateConnectionStates();
+
+  // Find the oldest pingable connection and have it do a ping.
+  Connection* conn = FindNextPingableConnection();
+  if (conn)
+    conn->Ping(Time());
+
+  // Post ourselves a message to perform the next ping.
+  uint32 delay = (state_ == STATE_WRITABLE) ? WRITABLE_DELAY : UNWRITABLE_DELAY;
+  thread()->PostDelayed(delay, this, MSG_PING);
+}
+
+// Is the connection in a state for us to even consider pinging the other side?
+bool P2PSocket::IsPingable(Connection* conn) {
+  // An unconnected connection cannot be written to at all, so pinging is out
+  // of the question.
+  if (!conn->connected())
+    return false;
+
+  if (state_ == STATE_WRITABLE) {
+    // If we are writable, then we only want to ping connections that could be
+    // better than this one, i.e., the ones that were not pruned.
+    return (conn->write_state() != Connection::STATE_WRITE_TIMEOUT);
+  } else {
+    // If we are not writable, then we need to try everything that might work.
+    // This includes both connections that do not have write timeout as well as
+    // ones that do not have read timeout.  A connection could be readable but
+    // be in write-timeout if we pruned it before.  Since the other side is
+    // still pinging it, it very well might still work.
+    return (conn->write_state() != Connection::STATE_WRITE_TIMEOUT) ||
+           (conn->read_state() != Connection::STATE_READ_TIMEOUT);
+  }
+}
+
+// Returns the next pingable connection to ping.  This will be the oldest
+// pingable connection unless we have a writable connection that is past the
+// maximum acceptable ping delay.
+Connection* P2PSocket::FindNextPingableConnection() {
+  uint32 now = Time();
+  if (best_connection_ &&
+      (best_connection_->write_state() == Connection::STATE_WRITABLE) &&
+      (best_connection_->last_ping_sent() 
+       + MAX_CURRENT_WRITABLE_DELAY <= now)) {
+    return best_connection_;
+  }
+
+  Connection* oldest_conn = NULL;
+  uint32 oldest_time = 0xFFFFFFFF;
+  for (uint32 i = 0; i < connections_.size(); ++i) {
+    if (IsPingable(connections_[i])) {
+      if (connections_[i]->last_ping_sent() < oldest_time) {
+        oldest_time = connections_[i]->last_ping_sent();
+        oldest_conn = connections_[i];
+      }
+    }
+  }
+  return oldest_conn;
+}
+
+// return the number of "pingable" connections
+uint32 P2PSocket::NumPingableConnections() {
+  uint32 count = 0;
+  for (uint32 i = 0; i < connections_.size(); ++i) {
+    if (IsPingable(connections_[i]))
+      count += 1;
+  }
+  return count;
+}
+
+// When a connection's state changes, we need to figure out who to use as
+// the best connection again.  It could have become usable, or become unusable.
+void P2PSocket::OnConnectionStateChange(Connection *connection) {
+  assert(worker_thread_ == Thread::Current());
+
+  // We have to unroll the stack before doing this because we may be changing
+  // the state of connections while sorting.
+  RequestSort();
+}
+
+// When a connection is removed, edit it out, and then update our best
+// connection.
+void P2PSocket::OnConnectionDestroyed(Connection *connection) {
+  assert(worker_thread_ == Thread::Current());
+
+  // Remove this connection from the list.
+  std::vector<Connection*>::iterator iter =
+      find(connections_.begin(), connections_.end(), connection);
+  assert(iter != connections_.end());
+  connections_.erase(iter);
+
+  LOG(INFO) << "Removed connection from p2p socket: "
+            << static_cast<int>(connections_.size()) << " remaining";
+
+  // If this is currently the best connection, then we need to pick a new one.
+  // The call to SortConnections will pick a new one.  It looks at the current
+  // best connection in order to avoid switching between fairly similar ones.
+  // Since this connection is no longer an option, we can just set best to NULL
+  // and re-choose a best assuming that there was no best connection.
+  if (best_connection_ == connection) {
+    SwitchBestConnectionTo(NULL);
+    RequestSort();
+  }
+}
+
+// When a port is destroyed remove it from our list of ports to use for
+// connection attempts.
+void P2PSocket::OnPortDestroyed(Port* port) {
+  assert(worker_thread_ == Thread::Current());
+
+  // Remove this port from the list (if we didn't drop it already).
+  std::vector<Port*>::iterator iter = find(ports_.begin(), ports_.end(), port);
+  if (iter != ports_.end())
+    ports_.erase(iter);
+
+  LOG(INFO) << "Removed port from p2p socket: "
+            << static_cast<int>(ports_.size()) << " remaining";
+}
+
+// We data is available, let listeners know
+void P2PSocket::OnReadPacket(Connection *connection, 
+                             const char *data, size_t len) {
+  assert(worker_thread_ == Thread::Current());
+
+  // Let the client know of an incoming packet
+
+  SignalReadPacket(this, data, len);
+}
+
+// return socket name
+const std::string &P2PSocket::name() const {
+  return name_;
+}
+
+// return socket error value
+int P2PSocket::GetError() {
+  return error_;
+}
+
+// return a reference to the list of connections
+const std::vector<Connection *>& P2PSocket::connections() {
+  return connections_;
+}
+
+// Set options on ourselves is simply setting options on all of our available
+// port objects.
+int P2PSocket::SetOption(Socket::Option opt, int value) {
+  OptionMap::iterator it = options_.find(opt);
+  if (it == options_.end()) {
+    options_.insert(std::make_pair(opt, value));
+  } else if (it->second == value) {
+    return 0;
+  } else {
+    it->second = value;
+  }
+
+  for (uint32 i = 0; i < ports_.size(); ++i) {
+    int val = ports_[i]->SetOption(opt, value);
+    if (val < 0) {
+      // Because this also occurs deferred, probably no point in reporting an error
+      LOG(WARNING) << "SetOption(" << opt << ", " << value << ") failed: " << ports_[i]->GetError();
+    }
+  }
+  return 0;
+}
+
+// returns the current state
+P2PSocket::State P2PSocket::state() {
+  return state_;
+}
+
+// Set the current state, and let listeners know when it changes
+void P2PSocket::set_state(P2PSocket::State state) {
+  assert(worker_thread_ == Thread::Current());
+  if (state != state_) {
+    state_ = state;
+    SignalState(this, state);
+  }
+}
+
+// Time for a new allocator, lets make sure we have a signalling channel
+// to communicate candidates through first.
+void P2PSocket::OnAllocate() {
+  // Allocation timer went off
+  waiting_for_signaling_ = true;
+  SignalRequestSignaling();
+}
+
+// When the signalling channel is ready, we can really kick off the allocator
+void P2PSocket::OnSignalingReady() {
+  if (waiting_for_signaling_) {
+    waiting_for_signaling_ = false;
+    AddAllocatorSession(allocator_->CreateSession(name_));
+    thread()->PostDelayed(kAllocatePeriod, this, MSG_ALLOCATE);
+  }
+}
+
+// return the current best connection writable state.
+bool P2PSocket::writable() {
+  assert(worker_thread_ == Thread::Current());
+
+  if (best_connection_ == NULL)
+    return false;
+  return best_connection_->write_state() == Connection::STATE_WRITABLE;
+}
+
+// return the worker thread
+Thread *P2PSocket::thread() {
+  return worker_thread_;
+}
+
+} // namespace cricket
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/p2psocket.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/p2psocket.h
new file mode 100644
index 00000000..32eb1f6d
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/p2psocket.h
@@ -0,0 +1,164 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+// P2PSocket wraps up the state management of the connection between two
+// P2P clients.  Clients have candidate ports for connecting, and connections
+// which are combinations of candidates from each end (Alice and Bob each
+// have candidates, one candidate from Alice and one candidate from Bob are
+// used to make a connection, repeat to make many connections).
+//
+// When all of the available connections become invalid (non-writable), we
+// kick off a process of determining more candidates and more connections.
+//
+#ifndef _CRICKET_P2P_BASE_P2PSOCKET_H_
+#define _CRICKET_P2P_BASE_P2PSOCKET_H_
+
+#include <vector>
+#include <string>
+#include "talk/base/sigslot.h"
+#include "talk/p2p/base/candidate.h"
+#include "talk/p2p/base/port.h"
+#include "talk/p2p/base/portallocator.h"
+
+namespace cricket {
+
+// Adds the port on which the candidate originated.
+class RemoteCandidate: public Candidate {
+ public:
+  RemoteCandidate(const Candidate& c, Port* origin_port)
+    : Candidate(c), origin_port_(origin_port) {}
+
+  Port* origin_port() { return origin_port_; }
+
+ private:
+  Port* origin_port_;
+};
+
+// P2PSocket manages the candidates and connection process to keep two P2P
+// clients connected to each other.
+class P2PSocket : public MessageHandler, public sigslot::has_slots<> {
+ public:
+  enum State {
+    STATE_CONNECTING = 0,    // establishing writability
+    STATE_WRITABLE,          // connected - ready for writing
+  };
+
+  P2PSocket(const std::string &name, PortAllocator *allocator);
+  virtual ~P2PSocket();
+
+  // Typically SocketManager calls these
+
+  const std::string &name() const;
+  void StartProcessingCandidates();
+  void AddRemoteCandidates(const std::vector<Candidate> &remote_candidates);
+  void OnSignalingReady();
+  void Reset();
+
+  // Typically the Session Client calls these
+
+  int Send(const char *data, size_t len);
+  int SetOption(Socket::Option opt, int value);
+  int GetError();
+
+  State state();
+  bool writable();
+  const std::vector<Connection *>& connections();
+  Connection* best_connection() { return best_connection_; }
+  Thread *thread();
+
+  sigslot::signal2<P2PSocket *, State> SignalState;
+  sigslot::signal0<> SignalRequestSignaling;
+  sigslot::signal3<P2PSocket *, const char *, size_t> SignalReadPacket;
+  sigslot::signal2<P2PSocket *, const SocketAddress &> SignalConnectionChanged;
+  sigslot::signal2<P2PSocket *, const std::vector<Candidate>&> 
+      SignalCandidatesReady;
+  sigslot::signal1<P2PSocket *> SignalConnectionMonitor;
+
+  // Handler for internal messages.
+  virtual void OnMessage(Message *pmsg);
+
+ private:
+  void set_state(State state);
+  void UpdateConnectionStates();
+  void RequestSort();
+  void SortConnections();
+  void SwitchBestConnectionTo(Connection* conn);
+  void HandleWritable();
+  void HandleNotWritable();
+  void HandleAllTimedOut();
+  Connection* GetBestConnectionOnNetwork(Network* network);
+  bool CreateConnections(const Candidate &remote_candidate, Port* origin_port, 
+                         bool readable);
+  bool CreateConnection(Port* port, const Candidate& remote_candidate, 
+                        Port* origin_port, bool readable);
+  void RememberRemoteCandidate(const Candidate& remote_candidate, 
+                               Port* origin_port);
+  void OnUnknownAddress(Port *port, const SocketAddress &addr, 
+                        StunMessage *stun_msg, 
+                        const std::string &remote_username);
+  void OnPortReady(PortAllocatorSession *session, Port* port);
+  void OnCandidatesReady(PortAllocatorSession *session, 
+                         const std::vector<Candidate>& candidates);
+  void OnConnectionStateChange(Connection *connection);
+  void OnConnectionDestroyed(Connection *connection);
+  void OnPortDestroyed(Port* port);
+  void OnAllocate();
+  void OnReadPacket(Connection *connection, const char *data, size_t len);
+  void OnSort();
+  void OnPing();
+  bool IsPingable(Connection* conn);
+  Connection* FindNextPingableConnection();
+  uint32 NumPingableConnections();
+  PortAllocatorSession* allocator_session() {
+    return allocator_sessions_.back();
+  }
+  void AddAllocatorSession(PortAllocatorSession* session);
+
+  Thread *worker_thread_;
+  State state_;
+  bool waiting_for_signaling_;
+  int error_;
+  std::string name_;
+  PortAllocator *allocator_;
+  std::vector<PortAllocatorSession*> allocator_sessions_;
+  std::vector<Port *> ports_;
+  std::vector<Connection *> connections_;
+  Connection *best_connection_;
+  std::vector<RemoteCandidate> remote_candidates_;
+  bool pinging_started_;  // indicates whether StartGetAllCandidates has been called
+  bool sort_dirty_; // indicates whether another sort is needed right now
+  bool was_writable_;
+  bool was_timed_out_;
+  typedef std::map<Socket::Option, int> OptionMap;
+  OptionMap options_;
+
+  DISALLOW_EVIL_CONSTRUCTORS(P2PSocket);
+};
+
+} // namespace cricket
+
+#endif // _CRICKET_P2P_BASE_P2PSOCKET_H_
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/port.cc b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/port.cc
new file mode 100644
index 00000000..14549b5b
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/port.cc
@@ -0,0 +1,869 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if defined(_MSC_VER) && _MSC_VER < 1300
+#pragma warning(disable:4786)
+#endif
+#include "talk/base/logging.h"
+#include "talk/base/asyncudpsocket.h"
+#include "talk/base/asynctcpsocket.h"
+#include "talk/base/socketadapters.h"
+#include "talk/p2p/base/port.h"
+#include "talk/p2p/base/helpers.h"
+#include "talk/base/scoped_ptr.h"
+#include <errno.h>
+#include <algorithm>
+#include <iostream>
+#include <cassert>
+#include <vector>
+
+#if defined(_MSC_VER) && _MSC_VER < 1300
+namespace std {
+  using ::memcmp;
+}
+#endif
+
+namespace {
+
+// The length of time we wait before timing out readability on a connection.
+const uint32 CONNECTION_READ_TIMEOUT = 30 * 1000; // 30 seconds
+
+// The length of time we wait before timing out writability on a connection.
+const uint32 CONNECTION_WRITE_TIMEOUT = 15 * 1000; // 15 seconds
+
+// The length of time we wait before we become unwritable.
+const uint32 CONNECTION_WRITE_CONNECT_TIMEOUT = 5 * 1000; // 5 seconds
+
+// The number of pings that must fail to respond before we become unwritable.
+const uint32 CONNECTION_WRITE_CONNECT_FAILURES = 5;
+
+// This is the length of time that we wait for a ping response to come back.
+const int CONNECTION_RESPONSE_TIMEOUT = 5 * 1000; // 5 seconds
+
+// Determines whether we have seen at least the given maximum number of
+// pings fail to have a response.
+inline bool TooManyFailures(
+    const std::vector<uint32>& pings_since_last_response,
+    uint32 maximum_failures,
+    uint32 rtt_estimate,
+    uint32 now) {
+
+  // If we haven't sent that many pings, then we can't have failed that many.
+  if (pings_since_last_response.size() < maximum_failures)
+    return false;
+
+  // Check if the window in which we would expect a response to the ping has
+  // already elapsed.
+  return pings_since_last_response[maximum_failures - 1] + rtt_estimate < now;
+}
+
+// Determines whether we have gone too long without seeing any response.
+inline bool TooLongWithoutResponse(
+    const std::vector<uint32>& pings_since_last_response,
+    uint32 maximum_time,
+    uint32 now) {
+
+  if (pings_since_last_response.size() == 0)
+    return false;
+
+  return pings_since_last_response[0] + maximum_time < now;
+}
+
+// We will restrict RTT estimates (when used for determining state) to be
+// within a reasonable range.
+const uint32 MINIMUM_RTT = 100;  // 0.1 seconds
+const uint32 MAXIMUM_RTT = 3000; // 3 seconds
+
+// When we don't have any RTT data, we have to pick something reasonable.  We
+// use a large value just in case the connection is really slow.
+const uint32 DEFAULT_RTT = MAXIMUM_RTT;
+
+// Computes our estimate of the RTT given the current estimate and the number
+// of data points on which it is based.
+inline uint32 ConservativeRTTEstimate(uint32 rtt, uint32 rtt_data_points) {
+  if (rtt_data_points == 0)
+    return DEFAULT_RTT;
+  else
+    return cricket::_max(MINIMUM_RTT, cricket::_min(MAXIMUM_RTT, 2 * rtt));
+}
+
+// Weighting of the old rtt value to new data.
+const int RTT_RATIO = 3; // 3 : 1
+
+// The delay before we begin checking if this port is useless.
+const int kPortTimeoutDelay = 30 * 1000; // 30 seconds
+
+const uint32 MSG_CHECKTIMEOUT = 1;
+const uint32 MSG_DELETE = 1;
+
+}
+
+namespace cricket {
+
+static const char * const PROTO_NAMES[PROTO_LAST+1] = { "udp", "tcp", "ssltcp" };
+
+const char * ProtoToString(ProtocolType proto) {
+  return PROTO_NAMES[proto];
+}
+
+bool StringToProto(const char * value, ProtocolType& proto) {
+  for (size_t i=0; i<=PROTO_LAST; ++i) {
+    if (strcmp(PROTO_NAMES[i], value) == 0) {
+      proto = static_cast<ProtocolType>(i);
+      return true;
+    }
+  }
+  return false;
+}
+
+ProxyInfo Port::proxy_;
+
+Port::Port(Thread* thread, const std::string& type, SocketFactory* factory,
+           Network* network)
+  : thread_(thread), factory_(factory), type_(type), network_(network),
+    preference_(-1), lifetime_(LT_PRESTART) {
+
+  if (factory_ == NULL)
+    factory_ = thread_->socketserver();
+
+  set_username_fragment(CreateRandomString(16));
+  set_password(CreateRandomString(16));
+}
+
+Port::~Port() {
+  // Delete all of the remaining connections.  We copy the list up front
+  // because each deletion will cause it to be modified.
+
+  std::vector<Connection*> list;
+
+  AddressMap::iterator iter = connections_.begin();
+  while (iter != connections_.end()) {
+    list.push_back(iter->second);
+    ++iter;
+  }
+
+  for (uint32 i = 0; i < list.size(); i++)
+    delete list[i];
+}
+
+Connection* Port::GetConnection(const SocketAddress& remote_addr) {
+  AddressMap::const_iterator iter = connections_.find(remote_addr);
+  if (iter != connections_.end())
+    return iter->second;
+  else
+    return NULL;
+}
+
+void Port::set_username_fragment(const std::string& username_fragment) {
+  username_frag_ = username_fragment;
+}
+
+void Port::set_password(const std::string& password) {
+  password_ = password;
+}
+
+void Port::add_address(const SocketAddress& address, const std::string& protocol, bool final) {
+  Candidate c;
+  c.set_name(name_);
+  c.set_type(type_);
+  c.set_protocol(protocol);
+  c.set_address(address);
+  c.set_preference(preference_);
+  c.set_username(username_frag_);
+  c.set_password(password_);
+  c.set_network_name(network_->name());
+  c.set_generation(generation_);
+  candidates_.push_back(c);
+
+  if (final)
+    SignalAddressReady(this);
+}
+
+void Port::AddConnection(Connection* conn) {
+  connections_[conn->remote_candidate().address()] = conn;
+  conn->SignalDestroyed.connect(this, &Port::OnConnectionDestroyed);
+  SignalConnectionCreated(this, conn);
+}
+
+void Port::OnReadPacket(
+    const char* data, size_t size, const SocketAddress& addr) {
+
+  // If this is an authenticated STUN request, then signal unknown address and
+  // send back a proper binding response.
+  StunMessage* msg;
+  std::string remote_username;
+  if (!GetStunMessage(data, size, addr, msg, remote_username)) {
+    LOG(LERROR) << "Received non-STUN packet from unknown address: "
+               << addr.ToString();
+  } else if (!msg) {
+    // STUN message handled already
+  } else if (msg->type() == STUN_BINDING_REQUEST) {
+    SignalUnknownAddress(this, addr, msg, remote_username);
+  } else {
+    LOG(LERROR) << "Received unexpected STUN message type (" << msg->type()
+               << ") from unknown address: " << addr.ToString();
+    delete msg;
+  }
+}
+
+void Port::SendBindingRequest(Connection* conn) {
+
+  // Construct the request message.
+
+  StunMessage request;
+  request.SetType(STUN_BINDING_REQUEST);
+  request.SetTransactionID(CreateRandomString(16));
+
+  StunByteStringAttribute* username_attr =
+      StunAttribute::CreateByteString(STUN_ATTR_USERNAME);
+  std::string username = conn->remote_candidate().username();
+  username.append(username_frag_);
+  username_attr->CopyBytes(username.c_str(), (uint16)username.size());
+  request.AddAttribute(username_attr);
+
+  // Send the request message.
+  // NOTE: If we wanted to, this is where we would add the HMAC.
+  ByteBuffer buf;
+  request.Write(&buf);
+  SendTo(buf.Data(), buf.Length(), conn->remote_candidate().address(), false);
+}
+
+bool Port::GetStunMessage(const char* data, size_t size,
+                          const SocketAddress& addr, StunMessage *& msg,
+                          std::string& remote_username) {
+  // NOTE: This could clearly be optimized to avoid allocating any memory.
+  //       However, at the data rates we'll be looking at on the client side,
+  //       this probably isn't worth worrying about.
+
+  msg = 0;
+
+  // Parse the request message.  If the packet is not a complete and correct
+  // STUN message, then ignore it.
+  buzz::scoped_ptr<StunMessage> stun_msg(new StunMessage());
+  ByteBuffer buf(data, size);
+  if (!stun_msg->Read(&buf) || (buf.Length() > 0)) {
+    return false;
+  }
+
+  // The packet must include a username that either begins or ends with our
+  // fragment.  It should begin with our fragment if it is a request and it
+  // should end with our fragment if it is a response.
+  const StunByteStringAttribute* username_attr =
+      stun_msg->GetByteString(STUN_ATTR_USERNAME);
+
+  int remote_frag_len = (username_attr ? username_attr->length() : 0);
+  remote_frag_len -= static_cast<int>(username_frag_.size());
+
+  if (stun_msg->type() == STUN_BINDING_REQUEST) {
+    if ((remote_frag_len < 0)
+        || (std::memcmp(username_attr->bytes(),
+                        username_frag_.c_str(), username_frag_.size()) != 0)) {
+      LOG(LERROR) << "Received STUN request with bad username";
+      SendBindingErrorResponse(stun_msg.get(), addr, STUN_ERROR_BAD_REQUEST,
+        STUN_ERROR_REASON_BAD_REQUEST);
+      return true;
+    }
+
+    remote_username.assign(username_attr->bytes() + username_frag_.size(),
+      username_attr->bytes() + username_attr->length());
+  } else if ((stun_msg->type() == STUN_BINDING_RESPONSE)
+      || (stun_msg->type() == STUN_BINDING_ERROR_RESPONSE)) {
+    if ((remote_frag_len < 0)
+        || (std::memcmp(username_attr->bytes() + remote_frag_len,
+                        username_frag_.c_str(), username_frag_.size()) != 0)) {
+      LOG(LERROR) << "Received STUN response with bad username";
+      // Do not send error response to a response
+      return true;
+    }
+
+    remote_username.assign(username_attr->bytes(),
+      username_attr->bytes() + remote_frag_len);
+
+    if (stun_msg->type() == STUN_BINDING_ERROR_RESPONSE) {
+      if (const StunErrorCodeAttribute* error_code = stun_msg->GetErrorCode()) {
+        LOG(LERROR) << "Received STUN binding error:"
+                   << " class=" << error_code->error_class()
+                   << " number=" << error_code->number()
+                   << " reason='" << error_code->reason() << "'";
+        // Return message to allow error-specific processing
+      } else {
+        LOG(LERROR) << "Received STUN error response with no error code";
+        // Drop corrupt message
+        return true;
+      }
+    }
+  } else {
+    LOG(LERROR) << "Received STUN packet with invalid type: "
+               << stun_msg->type();
+    return true;
+  }
+
+  // Return the STUN message found.
+  msg = stun_msg.release();
+  return true;
+}
+
+void Port::SendBindingResponse(
+    StunMessage* request, const SocketAddress& addr) {
+
+  assert(request->type() == STUN_BINDING_REQUEST);
+
+  // Retrieve the username from the request.
+  const StunByteStringAttribute* username_attr =
+      request->GetByteString(STUN_ATTR_USERNAME);
+  assert(username_attr);
+
+  // Fill in the response message.
+
+  StunMessage response;
+  response.SetType(STUN_BINDING_RESPONSE);
+  response.SetTransactionID(request->transaction_id());
+
+  StunByteStringAttribute* username2_attr =
+      StunAttribute::CreateByteString(STUN_ATTR_USERNAME);
+  username2_attr->CopyBytes(username_attr->bytes(), username_attr->length());
+  response.AddAttribute(username2_attr);
+
+  StunAddressAttribute* addr_attr =
+      StunAttribute::CreateAddress(STUN_ATTR_MAPPED_ADDRESS);
+  addr_attr->SetFamily(1);
+  addr_attr->SetPort(addr.port());
+  addr_attr->SetIP(addr.ip());
+  response.AddAttribute(addr_attr);
+
+  // Send the response message.
+  // NOTE: If we wanted to, this is where we would add the HMAC.
+  ByteBuffer buf;
+  response.Write(&buf);
+  SendTo(buf.Data(), buf.Length(), addr, false);
+
+  // The fact that we received a successful request means that this connection
+  // (if one exists) should now be readable.
+  Connection* conn = GetConnection(addr);
+  assert(conn);
+  if (conn)
+    conn->ReceivedPing();
+}
+
+void Port::SendBindingErrorResponse(
+    StunMessage* request, const SocketAddress& addr, int error_code,
+    const std::string& reason) {
+
+  assert(request->type() == STUN_BINDING_REQUEST);
+
+  // Retrieve the username from the request.  If it didn't have one, we
+  // shouldn't be responding at all.
+  const StunByteStringAttribute* username_attr =
+      request->GetByteString(STUN_ATTR_USERNAME);
+  assert(username_attr);
+
+  // Fill in the response message.
+
+  StunMessage response;
+  response.SetType(STUN_BINDING_ERROR_RESPONSE);
+  response.SetTransactionID(request->transaction_id());
+
+  StunByteStringAttribute* username2_attr =
+      StunAttribute::CreateByteString(STUN_ATTR_USERNAME);
+  username2_attr->CopyBytes(username_attr->bytes(), username_attr->length());
+  response.AddAttribute(username2_attr);
+
+  StunErrorCodeAttribute* error_attr = StunAttribute::CreateErrorCode();
+  error_attr->SetErrorCode(error_code);
+  error_attr->SetReason(reason);
+  response.AddAttribute(error_attr);
+
+  // Send the response message.
+  // NOTE: If we wanted to, this is where we would add the HMAC.
+  ByteBuffer buf;
+  response.Write(&buf);
+  SendTo(buf.Data(), buf.Length(), addr, false);
+}
+
+AsyncPacketSocket * Port::CreatePacketSocket(ProtocolType proto) {
+  if (proto == PROTO_UDP) {
+    return new AsyncUDPSocket(factory_->CreateAsyncSocket(SOCK_DGRAM));
+  } else if ((proto == PROTO_TCP) || (proto == PROTO_SSLTCP)) {
+    AsyncSocket * socket = factory_->CreateAsyncSocket(SOCK_STREAM);
+    switch (proxy().type) {
+    case PROXY_NONE:
+      break;
+    case PROXY_SOCKS5:
+      socket = new AsyncSocksProxySocket(socket, proxy().address, proxy().username, proxy().password);
+      break;
+    case PROXY_HTTPS:
+    default:
+      socket = new AsyncHttpsProxySocket(socket, proxy().address, proxy().username, proxy().password);
+      break;
+    }
+    if (proto == PROTO_SSLTCP) {
+      socket = new AsyncSSLSocket(socket);
+    }
+    return new AsyncTCPSocket(socket);
+  } else {
+    LOG(INFO) << "Unknown protocol: " << proto;
+    return 0;
+  }
+}
+
+void Port::OnMessage(Message *pmsg) {
+  assert(pmsg->message_id == MSG_CHECKTIMEOUT);
+  assert(lifetime_ == LT_PRETIMEOUT);
+  lifetime_ = LT_POSTTIMEOUT;
+  CheckTimeout();
+}
+
+void Port::Start() {
+  // The port sticks around for a minimum lifetime, after which
+  // we destroy it when it drops to zero connections.
+  if (lifetime_ == LT_PRESTART) {
+    lifetime_ = LT_PRETIMEOUT;
+    thread_->PostDelayed(kPortTimeoutDelay, this, MSG_CHECKTIMEOUT);
+  } else {
+    LOG(WARNING) << "Port restart attempted";
+  }
+}
+
+void Port::OnConnectionDestroyed(Connection* conn) {
+  AddressMap::iterator iter = connections_.find(conn->remote_candidate().address());
+  assert(iter != connections_.end());
+  connections_.erase(iter);
+
+  CheckTimeout();
+}
+
+void Port::CheckTimeout() {
+  // If this port has no connections, then there's no reason to keep it around.
+  // When the connections time out (both read and write), they will delete
+  // themselves, so if we have any connections, they are either readable or
+  // writable (or still connecting).
+  if ((lifetime_ == LT_POSTTIMEOUT) && connections_.empty()) {
+    LOG(INFO) << "Destroying port: " << name_ << "-" << type_;
+    SignalDestroyed(this);
+    delete this;
+  }
+}
+
+// A ConnectionRequest is a simple STUN ping used to determine writability.
+class ConnectionRequest : public StunRequest {
+public:
+  ConnectionRequest(Connection* connection) : connection_(connection) {
+  }
+
+  virtual ~ConnectionRequest() {
+  }
+
+  virtual void Prepare(StunMessage* request) {
+    request->SetType(STUN_BINDING_REQUEST);
+    StunByteStringAttribute* username_attr =
+        StunAttribute::CreateByteString(STUN_ATTR_USERNAME);
+    std::string username = connection_->remote_candidate().username();
+    username.append(connection_->port()->username_fragment());
+    username_attr->CopyBytes(username.c_str(), (uint16)username.size());
+    request->AddAttribute(username_attr);
+  }
+
+  virtual void OnResponse(StunMessage* response) {
+    connection_->OnConnectionRequestResponse(response, Elapsed());
+  }
+
+  virtual void OnErrorResponse(StunMessage* response) {
+    connection_->OnConnectionRequestErrorResponse(response, Elapsed());
+  }
+
+  virtual void OnTimeout() {
+  }
+
+  virtual int GetNextDelay() {
+    // Each request is sent only once.  After a single delay , the request will
+    // time out.
+    timeout_ = true;
+    return CONNECTION_RESPONSE_TIMEOUT;
+  }
+
+private:
+  Connection* connection_;
+};
+
+//
+// Connection
+//
+
+Connection::Connection(Port* port, size_t index, const Candidate& remote_candidate)
+  : requests_(port->thread()), port_(port), local_candidate_index_(index),
+    remote_candidate_(remote_candidate), read_state_(STATE_READ_TIMEOUT),
+    write_state_(STATE_WRITE_CONNECT), connected_(true), pruned_(false),
+    rtt_(0), rtt_data_points_(0), last_ping_sent_(0), last_ping_received_(0),
+    recv_total_bytes_(0), recv_bytes_second_(0),
+    last_recv_bytes_second_time_((uint32)-1), last_recv_bytes_second_calc_(0),
+    sent_total_bytes_(0), sent_bytes_second_(0),
+    last_sent_bytes_second_time_((uint32)-1), last_sent_bytes_second_calc_(0) {
+
+  // Wire up to send stun packets
+  requests_.SignalSendPacket.connect(this, &Connection::OnSendStunPacket);
+}
+
+Connection::~Connection() {
+}
+
+const Candidate& Connection::local_candidate() const {
+  if (local_candidate_index_ < port_->candidates().size())
+    return port_->candidates()[local_candidate_index_];
+  assert(false);
+  static Candidate foo;
+  return foo;
+}
+
+void Connection::set_read_state(ReadState value) {
+  ReadState old_value = read_state_;
+  read_state_ = value;
+  if (value != old_value) {
+    SignalStateChange(this);
+    CheckTimeout();
+  }
+}
+
+void Connection::set_write_state(WriteState value) {
+  WriteState old_value = write_state_;
+  write_state_ = value;
+  if (value != old_value) {
+    SignalStateChange(this);
+    CheckTimeout();
+  }
+}
+
+void Connection::set_connected(bool value) {
+  bool old_value = connected_;
+  connected_ = value;
+
+  // When connectedness is turned off, this connection is done.
+  if (old_value && !value)
+    set_write_state(STATE_WRITE_TIMEOUT);
+}
+
+void Connection::OnSendStunPacket(const void* data, size_t size) {
+  port_->SendTo(data, size, remote_candidate_.address(), false);
+}
+
+void Connection::OnReadPacket(const char* data, size_t size) {
+  StunMessage* msg;
+  std::string remote_username;
+  const SocketAddress& addr(remote_candidate_.address());
+  if (!port_->GetStunMessage(data, size, addr, msg, remote_username)) {
+    // The packet did not parse as a valid STUN message
+  
+    // If this connection is readable, then pass along the packet.
+    if (read_state_ == STATE_READABLE) {
+      // readable means data from this address is acceptable
+      // Send it on!
+
+      recv_total_bytes_ += size;
+      SignalReadPacket(this, data, size);
+
+      // If timed out sending writability checks, start up again
+      if (!pruned_ && (write_state_ == STATE_WRITE_TIMEOUT))
+        set_write_state(STATE_WRITE_CONNECT);
+    } else {
+      // Not readable means the remote address hasn't send a valid
+      // binding request yet.
+
+      LOG(WARNING) << "Received non-STUN packet from an unreadable connection.";
+    }
+  } else if (!msg) {
+    // The packet was STUN, but was already handled
+  } else if (remote_username != remote_candidate_.username()) {
+    // Not destined this connection
+    LOG(LERROR) << "Received STUN packet on wrong address.";
+    if (msg->type() == STUN_BINDING_REQUEST) {
+      port_->SendBindingErrorResponse(msg, addr, STUN_ERROR_BAD_REQUEST,
+                                      STUN_ERROR_REASON_BAD_REQUEST);
+    }
+    delete msg;
+  } else {
+    // The packet is STUN, with the current username
+    // If this is a STUN request, then update the readable bit and respond.
+    // If this is a STUN response, then update the writable bit.
+
+    switch (msg->type()) {
+    case STUN_BINDING_REQUEST:
+      // Incoming, validated stun request from remote peer.
+      // This call will also set the connection readable.
+
+      port_->SendBindingResponse(msg, addr);
+
+      // If timed out sending writability checks, start up again
+      if (!pruned_ && (write_state_ == STATE_WRITE_TIMEOUT))
+        set_write_state(STATE_WRITE_CONNECT);
+      break;
+
+    case STUN_BINDING_RESPONSE:
+    case STUN_BINDING_ERROR_RESPONSE:
+      // Response from remote peer. Does it match request sent?
+      // This doesn't just check, it makes callbacks if transaction
+      // id's match
+      requests_.CheckResponse(msg);
+      break;
+
+    default:
+      assert(false);
+      break;
+    }
+
+    // Done with the message; delete
+
+    delete msg;
+  }
+}
+
+void Connection::Prune() {
+  pruned_ = true;
+  requests_.Clear();
+  set_write_state(STATE_WRITE_TIMEOUT);
+}
+
+void Connection::Destroy() {
+  set_read_state(STATE_READ_TIMEOUT);
+  set_write_state(STATE_WRITE_TIMEOUT);
+}
+
+void Connection::UpdateState(uint32 now) {
+  // Check the readable state.
+  //
+  // Since we don't know how many pings the other side has attempted, the best
+  // test we can do is a simple window.
+
+  if ((read_state_ == STATE_READABLE) &&
+      (last_ping_received_ + CONNECTION_READ_TIMEOUT <= now)) {
+    set_read_state(STATE_READ_TIMEOUT);
+  }
+
+  // Check the writable state.  (The order of these checks is important.)
+  //
+  // Before becoming unwritable, we allow for a fixed number of pings to fail
+  // (i.e., receive no response).  We also have to give the response time to
+  // get back, so we include a conservative estimate of this.
+  //
+  // Before timing out writability, we give a fixed amount of time.  This is to
+  // allow for changes in network conditions.
+
+  uint32 rtt = ConservativeRTTEstimate(rtt_, rtt_data_points_);
+
+  if ((write_state_ == STATE_WRITABLE) &&
+      TooManyFailures(pings_since_last_response_,
+                      CONNECTION_WRITE_CONNECT_FAILURES,
+                      rtt,
+                      now) &&
+      TooLongWithoutResponse(pings_since_last_response_,
+                             CONNECTION_WRITE_CONNECT_TIMEOUT,
+                             now)) {
+    set_write_state(STATE_WRITE_CONNECT);
+  }
+
+  if ((write_state_ == STATE_WRITE_CONNECT) &&
+      TooLongWithoutResponse(pings_since_last_response_,
+                             CONNECTION_WRITE_TIMEOUT,
+                             now)) {
+    set_write_state(STATE_WRITE_TIMEOUT);
+  }
+}
+
+void Connection::Ping(uint32 now) {
+  assert(connected_);
+  last_ping_sent_ = now;
+  pings_since_last_response_.push_back(now);
+  requests_.Send(new ConnectionRequest(this));
+}
+
+void Connection::ReceivedPing() {
+  last_ping_received_ = Time();
+  set_read_state(STATE_READABLE);
+}
+
+void Connection::OnConnectionRequestResponse(StunMessage *response, uint32 rtt) {
+  // We have a potentially valid reply from the remote address.
+  // The packet must include a username that ends with our fragment,
+  // since it is a response.
+
+  // Check exact message type
+  bool valid = true;
+  if (response->type() != STUN_BINDING_RESPONSE)
+    valid = false;
+
+  // Must have username attribute
+  const StunByteStringAttribute* username_attr =
+      response->GetByteString(STUN_ATTR_USERNAME);
+  if (valid) {
+    if (!username_attr) {
+      LOG(LERROR) << "Received likely STUN packet with no username";
+      valid = false;
+    }
+  }
+
+  // Length must be at least the size of our fragment (actually, should
+  // be bigger since our fragment is at the end!)
+  if (valid) {
+    if (username_attr->length() <= port_->username_fragment().size()) {
+      LOG(LERROR) << "Received likely STUN packet with short username";
+      valid = false;
+    }
+  }
+
+  // Compare our fragment with the end of the username - must be exact match
+  if (valid) {
+    std::string username_fragment = port_->username_fragment();
+    int offset = (int)(username_attr->length() - username_fragment.size());
+    if (std::memcmp(username_attr->bytes() + offset,
+        username_fragment.c_str(), username_fragment.size()) != 0) {
+      LOG(LERROR) << "Received STUN response with bad username";
+      valid = false;
+    }
+  }
+
+  if (valid) {
+    // Valid response. If we're not already, become writable.  We may be
+    // bringing a pruned connection back to life, but if we don't really want
+    // it, we can always prune it again.
+    set_write_state(STATE_WRITABLE);
+
+    pings_since_last_response_.clear();
+    rtt_ = (RTT_RATIO * rtt_ + rtt) / (RTT_RATIO + 1);
+    rtt_data_points_ += 1;
+  }
+}
+
+void Connection::OnConnectionRequestErrorResponse(StunMessage *response, uint32 rtt) {
+  const StunErrorCodeAttribute* error = response->GetErrorCode();
+  uint32 error_code = error ? error->error_code() : STUN_ERROR_GLOBAL_FAILURE;
+
+  if ((error_code == STUN_ERROR_UNKNOWN_ATTRIBUTE)
+      || (error_code == STUN_ERROR_SERVER_ERROR)
+      || (error_code == STUN_ERROR_UNAUTHORIZED)) {
+    // Recoverable error, retry
+  } else if (error_code == STUN_ERROR_STALE_CREDENTIALS) {
+    // Race failure, retry
+  } else {
+    // This is not a valid connection.
+    set_connected(false);
+  }
+}
+
+void Connection::CheckTimeout() {
+  // If both read and write have timed out, then this connection can contribute
+  // no more to p2p socket unless at some later date readability were to come
+  // back.  However, we gave readability a long time to timeout, so at this
+  // point, it seems fair to get rid of this connectoin.
+  if ((read_state_ == STATE_READ_TIMEOUT) &&
+      (write_state_ == STATE_WRITE_TIMEOUT)) {
+    port_->thread()->Post(this, MSG_DELETE);
+  }
+}
+
+void Connection::OnMessage(Message *pmsg) {
+  assert(pmsg->message_id == MSG_DELETE);
+
+  LOG(INFO) << "Destroying connection: from "
+            << local_candidate().address().ToString()
+            << " to " << remote_candidate_.address().ToString();
+
+  SignalDestroyed(this);
+  delete this;
+}
+
+size_t Connection::recv_bytes_second() {
+  // Snapshot bytes / second calculator
+
+  uint32 current_time = Time();
+  if (last_recv_bytes_second_time_ != (uint32)-1) {
+    int delta = TimeDiff(current_time, last_recv_bytes_second_time_);
+    if (delta >= 1000) {
+      int fraction_time = delta % 1000;
+      int seconds_time = delta - fraction_time;
+      int fraction_bytes = (int)(recv_total_bytes_ - last_recv_bytes_second_calc_) * fraction_time / delta;
+      recv_bytes_second_ = (recv_total_bytes_ - last_recv_bytes_second_calc_ - fraction_bytes) * seconds_time / delta;
+      last_recv_bytes_second_time_ = current_time - fraction_time;
+      last_recv_bytes_second_calc_ = recv_total_bytes_ - fraction_bytes;
+    }
+  }
+  if (last_recv_bytes_second_time_ == (uint32)-1) {
+    last_recv_bytes_second_time_ = current_time;
+    last_recv_bytes_second_calc_ = recv_total_bytes_;
+  }
+
+  return recv_bytes_second_;
+}
+
+size_t Connection::recv_total_bytes() {
+  return recv_total_bytes_;
+}
+
+size_t Connection::sent_bytes_second() {
+  // Snapshot bytes / second calculator
+
+  uint32 current_time = Time();
+  if (last_sent_bytes_second_time_ != (uint32)-1) {
+    int delta = TimeDiff(current_time, last_sent_bytes_second_time_);
+    if (delta >= 1000) {
+      int fraction_time = delta % 1000;
+      int seconds_time = delta - fraction_time;
+      int fraction_bytes = (int)(sent_total_bytes_ - last_sent_bytes_second_calc_) * fraction_time / delta;
+      sent_bytes_second_ = (sent_total_bytes_ - last_sent_bytes_second_calc_ - fraction_bytes) * seconds_time / delta;
+      last_sent_bytes_second_time_ = current_time - fraction_time;
+      last_sent_bytes_second_calc_ = sent_total_bytes_ - fraction_bytes;
+    }
+  }
+  if (last_sent_bytes_second_time_ == (uint32)-1) {
+    last_sent_bytes_second_time_ = current_time;
+    last_sent_bytes_second_calc_ = sent_total_bytes_;
+  }
+
+  return sent_bytes_second_;
+}
+
+size_t Connection::sent_total_bytes() {
+  return sent_total_bytes_;
+}
+
+ProxyConnection::ProxyConnection(Port* port, size_t index, const Candidate& candidate)
+  : Connection(port, index, candidate), error_(0) {
+}
+
+int ProxyConnection::Send(const void* data, size_t size) {
+  if (write_state() != STATE_WRITABLE) {
+    error_ = EWOULDBLOCK;
+    return SOCKET_ERROR;
+  }
+  int sent = port_->SendTo(data, size, remote_candidate_.address(), true);
+  if (sent <= 0) {
+    assert(sent < 0);
+    error_ = port_->GetError();
+  } else {
+    sent_total_bytes_ += sent;
+  }
+  return sent;
+}
+
+} // namespace cricket
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/port.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/port.h
new file mode 100644
index 00000000..c22fad28
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/port.h
@@ -0,0 +1,367 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __PORT_H__
+#define __PORT_H__
+
+#include "talk/base/network.h"
+#include "talk/base/socketaddress.h"
+#include "talk/base/proxyinfo.h"
+#include "talk/base/sigslot.h"
+#include "talk/base/thread.h"
+#include "talk/p2p/base/candidate.h"
+#include "talk/p2p/base/stun.h"
+#include "talk/p2p/base/stunrequest.h"
+
+#include <string>
+#include <vector>
+#include <map>
+
+namespace cricket {
+
+class Connection;
+class AsyncPacketSocket;
+
+enum ProtocolType { PROTO_UDP, PROTO_TCP, PROTO_SSLTCP, PROTO_LAST = PROTO_SSLTCP };
+const char * ProtoToString(ProtocolType proto);
+bool StringToProto(const char * value, ProtocolType& proto);
+
+struct ProtocolAddress {
+  SocketAddress address;
+  ProtocolType proto;
+
+  ProtocolAddress(const SocketAddress& a, ProtocolType p) : address(a), proto(p) { }
+};
+
+// Represents a local communication mechanism that can be used to create
+// connections to similar mechanisms of the other client.  Subclasses of this
+// one add support for specific mechanisms like local UDP ports.
+class Port: public MessageHandler, public sigslot::has_slots<> {
+public:
+  Port(Thread* thread, const std::string &type, SocketFactory* factory,
+       Network* network);
+  virtual ~Port();
+
+  // The thread on which this port performs its I/O.
+  Thread* thread() { return thread_; }
+
+  // The factory used to create the sockets of this port.
+  SocketFactory* socket_factory() const { return factory_; }
+  void set_socket_factory(SocketFactory* factory) { factory_ = factory; }
+
+  // Each port is identified by a name (for debugging purposes).
+  const std::string& name() const { return name_; }
+  void set_name(const std::string& name) { name_ = name; }
+
+  // In order to establish a connection to this Port (so that real data can be
+  // sent through), the other side must send us a STUN binding request that is
+  // authenticated with this username and password.
+  const std::string& username_fragment() const { return username_frag_; }
+  const std::string& password() const { return password_; }
+
+  // A value in [0,1] that indicates the preference for this port versus other
+  // ports on this client.  (Larger indicates more preference.)
+  float preference() const { return preference_; }
+  void set_preference(float preference) { preference_ = preference; }
+
+  // Identifies the port type.
+  //const std::string& protocol() const { return proto_; }
+  const std::string& type() const { return type_; }
+
+  // Identifies network that this port was allocated on.
+  Network* network() { return network_; }
+
+  // Identifies the generation that this port was created in.
+  uint32 generation() { return generation_; }
+  void set_generation(uint32 generation) { generation_ = generation; }
+
+  // PrepareAddress will attempt to get an address for this port that other
+  // clients can send to.  It may take some time before the address is read.
+  // Once it is ready, we will send SignalAddressReady.
+  virtual void PrepareAddress() = 0;
+  sigslot::signal1<Port*> SignalAddressReady;
+  //const SocketAddress& address() const { return address_; }
+
+  // Provides all of the above information in one handy object.
+  const std::vector<Candidate>& candidates() const { return candidates_; }
+
+  // Returns a map containing all of the connections of this port, keyed by the
+  // remote address.
+  typedef std::map<SocketAddress, Connection*> AddressMap;
+  const AddressMap& connections() { return connections_; }  
+
+  // Returns the connection to the given address or NULL if none exists.
+  Connection* GetConnection(const SocketAddress& remote_addr);
+
+  // Creates a new connection to the given address.
+  enum CandidateOrigin { ORIGIN_THIS_PORT, ORIGIN_OTHER_PORT, ORIGIN_MESSAGE };
+  virtual Connection* CreateConnection(const Candidate& remote_candidate, CandidateOrigin origin) = 0;
+
+  // Called each time a connection is created.
+  sigslot::signal2<Port*, Connection*> SignalConnectionCreated;
+
+  // Sends the given packet to the given address, provided that the address is
+  // that of a connection or an address that has sent to us already.
+  virtual int SendTo(
+      const void* data, size_t size, const SocketAddress& addr, bool payload) = 0;
+
+  // Indicates that we received a successful STUN binding request from an
+  // address that doesn't correspond to any current connection.  To turn this
+  // into a real connection, call CreateConnection.
+  sigslot::signal4<Port*, const SocketAddress&, StunMessage*, const std::string&> SignalUnknownAddress;
+
+  // Sends a response message (normal or error) to the given request.  One of
+  // these methods should be called as a response to SignalUnknownAddress.
+  // NOTE: You MUST call CreateConnection BEFORE SendBindingResponse.
+  void SendBindingResponse(StunMessage* request, const SocketAddress& addr);
+  void SendBindingErrorResponse(
+      StunMessage* request, const SocketAddress& addr, int error_code,
+      const std::string& reason);
+
+  // Indicates that errors occurred when performing I/O.
+  sigslot::signal2<Port*, int> SignalReadError;
+  sigslot::signal2<Port*, int> SignalWriteError;
+
+  // Functions on the underlying socket(s).
+  virtual int SetOption(Socket::Option opt, int value) = 0;
+  virtual int GetError() = 0;
+
+  static void set_proxy(const ProxyInfo& proxy) { proxy_ = proxy; }
+  static const ProxyInfo& proxy() { return proxy_; }
+
+  AsyncPacketSocket * CreatePacketSocket(ProtocolType proto);
+
+  virtual void OnMessage(Message *pmsg);
+
+  // Indicates to the port that its official use has now begun.  This will
+  // start the timer that checks to see if the port is being used.
+  void Start();
+
+  // Signaled when this port decides to delete itself because it no longer has
+  // any usefulness.
+  sigslot::signal1<Port*> SignalDestroyed;
+
+protected:
+  Thread* thread_;
+  SocketFactory* factory_;
+  std::string type_;
+  Network* network_;
+  uint32 generation_;
+  std::string name_;
+  std::string username_frag_;
+  std::string password_;
+  float preference_;
+  std::vector<Candidate> candidates_;
+  AddressMap connections_;
+  enum Lifetime { LT_PRESTART, LT_PRETIMEOUT, LT_POSTTIMEOUT } lifetime_;
+
+  // Fills in the username fragment and password.  These will be initially set
+  // in the constructor to random values.  Subclasses can override, though.
+  void set_username_fragment(const std::string& username_fragment);
+  void set_password(const std::string& password);
+
+  // Fills in the local address of the port.
+  void add_address(const SocketAddress& address, const std::string& protocol, bool final = true);
+
+  // Adds the given connection to the list.  (Deleting removes them.)
+  void AddConnection(Connection* conn);
+
+  // Called when a packet is received from an unknown address that is not
+  // currently a connection.  If this is an authenticated STUN binding request,
+  // then we will signal the client.
+  void OnReadPacket(const char* data, size_t size, const SocketAddress& addr);
+
+  // Constructs a STUN binding request for the given connection and sends it.
+  void SendBindingRequest(Connection* conn);
+
+  // If the given data comprises a complete and correct STUN message then the
+  // return value is true, otherwise false. If the message username corresponds
+  // with this port's username fragment, msg will contain the parsed STUN
+  // message.  Otherwise, the function may send a STUN response internally.
+  // remote_username contains the remote fragment of the STUN username.
+  bool GetStunMessage(const char* data, size_t size, const SocketAddress& addr,
+    StunMessage *& msg, std::string& remote_username);
+
+  friend class Connection;
+
+private:
+  // Called when one of our connections deletes itself.
+  void OnConnectionDestroyed(Connection* conn);
+
+  // Checks if this port is useless, and hence, should be destroyed.
+  void CheckTimeout();
+
+  static ProxyInfo proxy_;
+};
+
+// Represents a communication link between a port on the local client and a
+// port on the remote client.
+class Connection : public MessageHandler, public sigslot::has_slots<> {
+public:
+  virtual ~Connection();
+
+  // The local port where this connection sends and receives packets.
+  Port* port() { return port_; }
+  const Port* port() const { return port_; }
+
+  // Returns the description of the local port
+  virtual const Candidate& local_candidate() const;
+
+  // Returns the description of the remote port to which we communicate.
+  const Candidate& remote_candidate() const { return remote_candidate_; }
+
+  enum ReadState {
+    STATE_READABLE     = 0, // we have received pings recently
+    STATE_READ_TIMEOUT = 1  // we haven't received pings in a while
+  };
+
+  ReadState read_state() const { return read_state_; }
+
+  enum WriteState {
+    STATE_WRITABLE      = 0, // we have received ping responses recently
+    STATE_WRITE_CONNECT = 1, // we have had a few ping failures
+    STATE_WRITE_TIMEOUT = 2  // we have had a large number of ping failures
+  };
+
+  WriteState write_state() const { return write_state_; }
+
+  // Determines whether the connection has finished connecting.  This can only
+  // be false for TCP connections.
+  bool connected() const { return connected_; }
+
+  // Estimate of the round-trip time over this connection.
+  uint32 rtt() const { return rtt_; }
+
+  size_t sent_total_bytes();
+  size_t sent_bytes_second();
+  size_t recv_total_bytes();
+  size_t recv_bytes_second();
+  sigslot::signal1<Connection*> SignalStateChange;
+
+  // Sent when the connection has decided that it is no longer of value.  It
+  // will delete itself immediately after this call.
+  sigslot::signal1<Connection*> SignalDestroyed;
+
+  // The connection can send and receive packets asynchronously.  This matches
+  // the interface of AsyncPacketSocket, which may use UDP or TCP under the covers.
+  virtual int Send(const void* data, size_t size) = 0;
+
+  // Error if Send() returns < 0
+  virtual int GetError() = 0;
+
+  sigslot::signal3<Connection*, const char*, size_t> SignalReadPacket;
+
+  // Called when a packet is received on this connection.
+  void OnReadPacket(const char* data, size_t size);
+
+  // Called when a connection is determined to be no longer useful to us.  We
+  // still keep it around in case the other side wants to use it.  But we can
+  // safely stop pinging on it and we can allow it to time out if the other
+  // side stops using it as well.
+  bool pruned() { return pruned_; }
+  void Prune();
+
+  // Makes the connection go away.
+  void Destroy();
+
+  // Checks that the state of this connection is up-to-date.  The argument is
+  // the current time, which is compared against various timeouts.
+  void UpdateState(uint32 now);
+
+  // Called when this connection should try checking writability again.
+  uint32 last_ping_sent() { return last_ping_sent_; }
+  void Ping(uint32 now);
+
+  // Called whenever a valid ping is received on this connection.  This is
+  // public because the connection intercepts the first ping for us.
+  void ReceivedPing();
+
+protected:
+  Port* port_;
+  size_t local_candidate_index_;
+  Candidate remote_candidate_;
+  ReadState read_state_;
+  WriteState write_state_;
+  bool connected_;
+  bool pruned_;
+  StunRequestManager requests_;
+  uint32 rtt_;
+  uint32 rtt_data_points_;
+  uint32 last_ping_sent_;     // last time we sent a ping to the other side
+  uint32 last_ping_received_; // last time we received a ping from the other side
+  std::vector<uint32> pings_since_last_response_;
+
+  size_t recv_total_bytes_;
+  size_t recv_bytes_second_;
+  uint32 last_recv_bytes_second_time_;
+  size_t last_recv_bytes_second_calc_;
+
+  size_t sent_total_bytes_;
+  size_t sent_bytes_second_;
+  uint32 last_sent_bytes_second_time_;
+  size_t last_sent_bytes_second_calc_;
+
+  // Callbacks from ConnectionRequest
+  void OnConnectionRequestResponse(StunMessage *response, uint32 rtt);
+  void OnConnectionRequestErrorResponse(StunMessage *response, uint32 rtt);
+
+  // Called back when StunRequestManager has a stun packet to send
+  void OnSendStunPacket(const void* data, size_t size);
+
+  // Constructs a new connection to the given remote port.
+  Connection(Port* port, size_t index, const Candidate& candidate);
+
+  // Changes the state and signals if necessary.
+  void set_read_state(ReadState value);
+  void set_write_state(WriteState value);
+  void set_connected(bool value);
+
+  // Checks if this connection is useless, and hence, should be destroyed.
+  void CheckTimeout();
+
+  void OnMessage(Message *pmsg);
+
+  friend class Port;
+  friend class ConnectionRequest;
+};
+
+// ProxyConnection defers all the interesting work to the port
+
+class ProxyConnection : public Connection {
+public:
+  ProxyConnection(Port* port, size_t index, const Candidate& candidate);
+
+  virtual int Send(const void* data, size_t size);
+  virtual int GetError() { return error_; }
+
+private:
+  int error_;
+};
+
+} // namespace cricket
+
+#endif // __PORT_H__
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/portallocator.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/portallocator.h
new file mode 100644
index 00000000..3246f29f
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/portallocator.h
@@ -0,0 +1,91 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _PORTALLOCATOR_H_
+#define _PORTALLOCATOR_H_
+
+#include "talk/base/sigslot.h"
+#include "talk/p2p/base/port.h"
+#include <string>
+#undef SetPort
+
+namespace cricket {
+
+// PortAllocator is responsible for allocating Port types for a given
+// P2PSocket. It also handles port freeing.
+//
+// Clients can override this class to control port allocation, including
+// what kinds of ports are allocated.
+
+class PortAllocatorSession : public sigslot::has_slots<> {
+public:
+  // Prepares an initial set of ports to try.
+  virtual void GetInitialPorts() = 0;
+
+  // Starts and stops the flow of additional ports to try.
+  virtual void StartGetAllPorts() = 0;
+  virtual void StopGetAllPorts() = 0;
+  virtual bool IsGettingAllPorts() = 0;
+
+  sigslot::signal2<PortAllocatorSession*, Port*> SignalPortReady;
+  sigslot::signal2<PortAllocatorSession*, const std::vector<Candidate>&> SignalCandidatesReady;
+
+  uint32 generation() { return generation_; }
+  void set_generation(uint32 generation) { generation_ = generation; }
+
+private:
+  uint32 generation_;
+};
+
+const uint32 PORTALLOCATOR_DISABLE_UDP = 0x01;
+const uint32 PORTALLOCATOR_DISABLE_STUN = 0x02;
+const uint32 PORTALLOCATOR_DISABLE_RELAY = 0x04;
+const uint32 PORTALLOCATOR_DISABLE_TCP = 0x08;
+const uint32 PORTALLOCATOR_ENABLE_SHAKER = 0x10;
+
+const uint32 kDefaultPortAllocatorFlags = 0;
+
+class PortAllocator {
+public:
+  PortAllocator() : flags_(kDefaultPortAllocatorFlags) {}
+
+  virtual PortAllocatorSession *CreateSession(const std::string &name) = 0;
+
+  uint32 flags() const { return flags_; }
+  void set_flags(uint32 flags) { flags_ = flags; }
+
+  const ProxyInfo& proxy() const { return proxy_; }
+  void set_proxy(const ProxyInfo& proxy) { proxy_ = proxy; }
+
+protected:
+  uint32 flags_;
+  ProxyInfo proxy_;
+};
+
+} // namespace cricket
+
+#endif // _PORTALLOCATOR_H_
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/relayport.cc b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/relayport.cc
new file mode 100644
index 00000000..4ba12be3
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/relayport.cc
@@ -0,0 +1,640 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if defined(_MSC_VER) && _MSC_VER < 1300
+#pragma warning(disable:4786)
+#endif
+#include "talk/base/logging.h"
+#include "talk/base/asynctcpsocket.h"
+#include "talk/p2p/base/relayport.h"
+#include "talk/p2p/base/helpers.h"
+#include <iostream>
+#include <cassert>
+#ifdef OSX
+#include <errno.h>
+#endif
+
+#if defined(_MSC_VER) && _MSC_VER < 1300
+namespace std {
+  using ::strerror;
+}
+#endif
+
+#ifdef POSIX
+extern "C" {
+#include <errno.h>
+}
+#endif // POSIX
+
+namespace cricket {
+
+const int KEEPALIVE_DELAY = 10 * 60 * 1000;
+const int RETRY_DELAY = 50; // 50ms, from ICE spec
+const uint32 RETRY_TIMEOUT = 50 * 1000; // ICE says 50 secs
+
+const uint32 MSG_DISPOSE_SOCKET = 100; // needs to be more than ID used by Port
+typedef TypedMessageData<AsyncPacketSocket *> DisposeSocketData;
+
+class AsyncTCPSocket;
+
+// Manages a single connection to the relayserver.  We aim to use each
+// connection for only a specific destination address so that we can avoid
+// wrapping every packet in a STUN send / data indication.
+class RelayEntry : public sigslot::has_slots<> {
+public:
+  RelayEntry(RelayPort* port, const SocketAddress& ext_addr, const SocketAddress& local_addr);
+  ~RelayEntry();
+
+  RelayPort* port() { return port_; }
+
+  const SocketAddress& address() { return ext_addr_; }
+  void set_address(const SocketAddress& addr) { ext_addr_ = addr; }
+
+  AsyncPacketSocket* socket() { return socket_; }
+
+  bool connected() { return connected_; }
+  void set_connected(bool connected) { connected_ = connected; }
+
+  bool locked() { return locked_; }
+
+  // Returns the last error on the socket of this entry.
+  int GetError() { return socket_->GetError(); }
+
+  // Sends the STUN requests to the server to initiate this connection.
+  void Connect();
+
+  // Called when this entry becomes connected.  The address given is the one
+  // exposed to the outside world on the relay server.
+  void OnConnect(const SocketAddress& mapped_addr);
+
+  // Sends a packet to the given destination address using the socket of this
+  // entry.  This will wrap the packet in STUN if necessary.
+  int SendTo(const void* data, size_t size, const SocketAddress& addr);
+
+  // Schedules a keep-alive allocate request.
+  void ScheduleKeepAlive();
+
+  void SetServerIndex(size_t sindex) { server_index_ = sindex; }
+  size_t ServerIndex() const { return server_index_; }
+
+  // Try a different server address
+  void HandleConnectFailure();
+
+private:
+  RelayPort* port_;
+  SocketAddress ext_addr_, local_addr_;
+  size_t server_index_;
+  AsyncPacketSocket* socket_;
+  bool connected_;
+  bool locked_;
+  StunRequestManager requests_;
+
+  // Called when a TCP connection is established or fails
+  void OnSocketConnect(AsyncTCPSocket* socket);
+  void OnSocketClose(AsyncTCPSocket* socket, int error);
+
+  // Called when a packet is received on this socket.
+  void OnReadPacket(
+      const char* data, size_t size, const SocketAddress& remote_addr,
+      AsyncPacketSocket* socket);
+
+  // Called on behalf of a StunRequest to write data to the socket.  This is
+  // already STUN intended for the server, so no wrapping is necessary.
+  void OnSendPacket(const void* data, size_t size);
+
+  // Sends the given data on the socket to the server with no wrapping.  This
+  // returns the number of bytes written or -1 if an error occurred.
+  int SendPacket(const void* data, size_t size);
+};
+
+// Handles an allocate request for a particular RelayEntry.
+class AllocateRequest : public StunRequest {
+public:
+  AllocateRequest(RelayEntry* entry);
+  virtual ~AllocateRequest() {}
+
+  virtual void Prepare(StunMessage* request);
+
+  virtual int GetNextDelay();
+
+  virtual void OnResponse(StunMessage* response);
+  virtual void OnErrorResponse(StunMessage* response);
+  virtual void OnTimeout();
+
+private:
+  RelayEntry* entry_;
+  uint32 start_time_;
+};
+
+const std::string RELAY_PORT_TYPE("relay");
+
+RelayPort::RelayPort(
+    Thread* thread, SocketFactory* factory, Network* network,
+    const SocketAddress& local_addr, const std::string& username,
+    const std::string& password, const std::string& magic_cookie)
+  : Port(thread, RELAY_PORT_TYPE, factory, network), local_addr_(local_addr),
+    ready_(false), magic_cookie_(magic_cookie), error_(0) {
+
+  entries_.push_back(new RelayEntry(this, SocketAddress(), local_addr_));
+
+  set_username_fragment(username);
+  set_password(password);
+
+  if (magic_cookie_.size() == 0)
+    magic_cookie_.append(STUN_MAGIC_COOKIE_VALUE, 4);
+}
+
+RelayPort::~RelayPort() {
+  for (unsigned i = 0; i < entries_.size(); ++i)
+    delete entries_[i];
+  thread_->Clear(this);
+}
+
+void RelayPort::AddServerAddress(const ProtocolAddress& addr) {
+  // Since HTTP proxies usually only allow 443, let's up the priority on PROTO_SSLTCP
+  if ((addr.proto == PROTO_SSLTCP)
+      && ((proxy().type == PROXY_HTTPS) || (proxy().type == PROXY_UNKNOWN))) {
+    server_addr_.push_front(addr);
+  } else {
+    server_addr_.push_back(addr);
+  }
+}
+
+void RelayPort::AddExternalAddress(const ProtocolAddress& addr) {
+  std::string proto_name = ProtoToString(addr.proto);
+  for (std::vector<Candidate>::const_iterator it = candidates().begin(); it != candidates().end(); ++it) {
+    if ((it->address() == addr.address) && (it->protocol() == proto_name)) {
+      LOG(INFO) << "Redundant relay address: " << proto_name << " @ " << addr.address.ToString();
+      return;
+    }
+  }
+  add_address(addr.address, proto_name, false);
+}
+
+void RelayPort::SetReady() {
+  if (!ready_) {
+    ready_ = true;
+    SignalAddressReady(this);
+  }
+}
+
+const ProtocolAddress * RelayPort::ServerAddress(size_t index) const {
+  if ((index >= 0) && (index < server_addr_.size()))
+    return &server_addr_[index];
+  return 0;
+}
+
+bool RelayPort::HasMagicCookie(const char* data, size_t size) {
+  if (size < 24 + magic_cookie_.size()) {
+    return false;
+  } else {
+    return 0 == std::memcmp(data + 24,
+                            magic_cookie_.c_str(),
+                            magic_cookie_.size());
+  }
+}
+
+void RelayPort::PrepareAddress() {
+  // We initiate a connect on the first entry.  If this completes, it will fill
+  // in the server address as the address of this port.
+  assert(entries_.size() == 1);
+  entries_[0]->Connect();
+  ready_ = false;
+}
+
+Connection* RelayPort::CreateConnection(const Candidate& address, CandidateOrigin origin) {
+  // We only create connections to non-udp sockets if they are incoming on this port
+  if ((address.protocol() != "udp") && (origin != ORIGIN_THIS_PORT))
+    return 0;
+
+  // We don't support loopback on relays
+  if (address.type() == type())
+    return 0;
+
+  size_t index = 0;
+  for (size_t i = 0; i < candidates().size(); ++i) {
+    const Candidate& local = candidates()[i];
+    if (local.protocol() == address.protocol()) {
+      index = i;
+      break;
+    }
+  }
+
+  Connection * conn = new ProxyConnection(this, index, address);
+  AddConnection(conn);
+  return conn;
+}
+
+int RelayPort::SendTo(const void* data,
+                      size_t size,
+                      const SocketAddress& addr, bool payload) {
+
+  // Try to find an entry for this specific address.  Note that the first entry
+  // created was not given an address initially, so it can be set to the first
+  // address that comes along.
+
+  RelayEntry* entry = 0;
+
+  for (unsigned i = 0; i < entries_.size(); ++i) {
+    if (entries_[i]->address().IsAny() && payload) {
+      entry = entries_[i];
+      entry->set_address(addr);
+      break;
+    } else if (entries_[i]->address() == addr) {
+      entry = entries_[i];
+      break;
+    }
+  }
+
+  // If we did not find one, then we make a new one.  This will not be useable
+  // until it becomes connected, however.
+  if (!entry && payload) {
+    entry = new RelayEntry(this, addr, local_addr_);
+    if (!entries_.empty()) {
+      // Use the same port to connect to relay server
+      entry->SetServerIndex(entries_[0]->ServerIndex());
+    }
+    entry->Connect();
+    entries_.push_back(entry);
+  }
+
+  // If the entry is connected, then we can send on it (though wrapping may
+  // still be necessary).  Otherwise, we can't yet use this connection, so we
+  // default to the first one.
+  if (!entry || !entry->connected()) {
+    assert(!entries_.empty());
+    entry = entries_[0];
+    if (!entry->connected()) {
+      error_ = EWOULDBLOCK;
+      return SOCKET_ERROR;
+    }
+  }
+
+  // Send the actual contents to the server using the usual mechanism.
+  int sent = entry->SendTo(data, size, addr);
+  if (sent <= 0) {
+    assert(sent < 0);
+    error_ = entry->GetError();
+    return SOCKET_ERROR;
+  }
+
+  // The caller of the function is expecting the number of user data bytes,
+  // rather than the size of the packet.
+  return (int)size;
+}
+
+void RelayPort::OnMessage(Message *pmsg) {
+  switch (pmsg->message_id) {
+  case MSG_DISPOSE_SOCKET: {
+    DisposeSocketData * data = static_cast<DisposeSocketData *>(pmsg->pdata);
+    delete data->data();
+    delete data;
+    break; }
+  default:
+    Port::OnMessage(pmsg);
+  }
+}
+
+int RelayPort::SetOption(Socket::Option opt, int value) {
+  int result = 0;
+  for (unsigned i = 0; i < entries_.size(); ++i) {
+    if (entries_[i]->socket()->SetOption(opt, value) < 0) {
+      result = -1;
+      error_ = entries_[i]->socket()->GetError();
+    }
+  }
+  options_.push_back(OptionValue(opt, value));
+  return result;
+}
+
+int RelayPort::GetError() {
+  return error_;
+}
+
+void RelayPort::OnReadPacket(
+    const char* data, size_t size, const SocketAddress& remote_addr) {
+  if (Connection* conn = GetConnection(remote_addr)) {
+    conn->OnReadPacket(data, size);
+  } else {
+    Port::OnReadPacket(data, size, remote_addr);
+  }
+}
+
+void RelayPort::DisposeSocket(AsyncPacketSocket * socket) {
+  thread_->Post(this, MSG_DISPOSE_SOCKET, new DisposeSocketData(socket));
+}
+
+RelayEntry::RelayEntry(RelayPort* port, const SocketAddress& ext_addr,
+                       const SocketAddress& local_addr)
+  : port_(port), ext_addr_(ext_addr), local_addr_(local_addr), server_index_(0),
+    socket_(0), connected_(false), locked_(false), requests_(port->thread()) {
+
+  requests_.SignalSendPacket.connect(this, &RelayEntry::OnSendPacket);
+}
+
+RelayEntry::~RelayEntry() {
+  delete socket_;
+}
+
+void RelayEntry::Connect() {
+  assert(socket_ == 0);
+  const ProtocolAddress * ra = port()->ServerAddress(server_index_);
+  if (!ra) {
+    LOG(INFO) << "Out of relay server connections";
+    return;
+  }
+
+  LOG(INFO) << "Connecting to relay via " << ProtoToString(ra->proto) << " @ " << ra->address.ToString();
+
+  socket_ = port_->CreatePacketSocket(ra->proto);
+  assert(socket_ != 0);
+
+  socket_->SignalReadPacket.connect(this, &RelayEntry::OnReadPacket);
+  if (socket_->Bind(local_addr_) < 0)
+    LOG(INFO) << "bind: " << std::strerror(socket_->GetError());
+
+  for (unsigned i = 0; i < port_->options().size(); ++i)
+    socket_->SetOption(port_->options()[i].first, port_->options()[i].second);
+
+  if ((ra->proto == PROTO_TCP) || (ra->proto == PROTO_SSLTCP)) {
+    AsyncTCPSocket * tcp = static_cast<AsyncTCPSocket *>(socket_);
+    tcp->SignalClose.connect(this, &RelayEntry::OnSocketClose);
+    tcp->SignalConnect.connect(this, &RelayEntry::OnSocketConnect);
+    tcp->Connect(ra->address);
+  } else {
+    requests_.Send(new AllocateRequest(this));
+  }
+}
+
+void RelayEntry::OnConnect(const SocketAddress& mapped_addr) {
+  ProtocolType proto = PROTO_UDP;
+  LOG(INFO) << "Relay allocate succeeded: " << ProtoToString(proto) << " @ " << mapped_addr.ToString();
+  connected_ = true;
+
+  port_->AddExternalAddress(ProtocolAddress(mapped_addr, proto));
+  port_->SetReady();
+}
+
+int RelayEntry::SendTo(const void* data,
+                        size_t size,
+                        const SocketAddress& addr) {
+
+  // If this connection is locked to the address given, then we can send the
+  // packet with no wrapper.
+  if (locked_ && (ext_addr_ == addr))
+    return SendPacket(data, size);
+
+  // Otherwise, we must wrap the given data in a STUN SEND request so that we
+  // can communicate the destination address to the server.
+  //
+  // Note that we do not use a StunRequest here.  This is because there is
+  // likely no reason to resend this packet. If it is late, we just drop it.
+  // The next send to this address will try again.
+
+  StunMessage request;
+  request.SetType(STUN_SEND_REQUEST);
+  request.SetTransactionID(CreateRandomString(16));
+
+  StunByteStringAttribute* magic_cookie_attr =
+      StunAttribute::CreateByteString(STUN_ATTR_MAGIC_COOKIE);
+  magic_cookie_attr->CopyBytes(port_->magic_cookie().c_str(),
+                               (uint16)port_->magic_cookie().size());
+  request.AddAttribute(magic_cookie_attr);
+
+  StunByteStringAttribute* username_attr =
+      StunAttribute::CreateByteString(STUN_ATTR_USERNAME);
+  username_attr->CopyBytes(port_->username_fragment().c_str(),
+                           (uint16)port_->username_fragment().size());
+  request.AddAttribute(username_attr);
+
+  StunAddressAttribute* addr_attr =
+      StunAttribute::CreateAddress(STUN_ATTR_DESTINATION_ADDRESS);
+  addr_attr->SetFamily(1);
+  addr_attr->SetIP(addr.ip());
+  addr_attr->SetPort(addr.port());
+  request.AddAttribute(addr_attr);
+
+  // Attempt to lock
+  if (ext_addr_ == addr) {
+    StunUInt32Attribute* options_attr =
+      StunAttribute::CreateUInt32(STUN_ATTR_OPTIONS);
+    options_attr->SetValue(0x1);
+    request.AddAttribute(options_attr);
+  }
+
+  StunByteStringAttribute* data_attr =
+      StunAttribute::CreateByteString(STUN_ATTR_DATA);
+  data_attr->CopyBytes(data, (uint16)size);
+  request.AddAttribute(data_attr);
+
+  // TODO: compute the HMAC.
+
+  ByteBuffer buf;
+  request.Write(&buf);
+
+  return SendPacket(buf.Data(), buf.Length());
+}
+
+void RelayEntry::ScheduleKeepAlive() {
+  requests_.SendDelayed(new AllocateRequest(this), KEEPALIVE_DELAY);
+}
+
+void RelayEntry::HandleConnectFailure() {
+  //if (GetMillisecondCount() - start_time_ > RETRY_TIMEOUT)
+  //  return;
+  //ScheduleKeepAlive();
+
+  connected_ = false;
+  port()->DisposeSocket(socket_);
+  socket_ = 0;
+  server_index_ += 1;
+  Connect();
+}
+
+void RelayEntry::OnSocketConnect(AsyncTCPSocket* socket) {
+  assert(socket == socket_);
+  LOG(INFO) << "relay tcp connected to " << socket->GetRemoteAddress().ToString();
+  requests_.Send(new AllocateRequest(this));
+}
+
+void RelayEntry::OnSocketClose(AsyncTCPSocket* socket, int error) {
+  assert(socket == socket_);
+  PLOG(LERROR, error) << "relay tcp connect failed";
+  HandleConnectFailure();
+}
+
+void RelayEntry::OnReadPacket(const char* data,
+                              size_t size,
+                              const SocketAddress& remote_addr,
+                              AsyncPacketSocket* socket) {
+  assert(socket == socket_);
+  //assert(remote_addr == port_->server_addr()); TODO: are we worried about this?
+
+  // If the magic cookie is not present, then this is an unwrapped packet sent
+  // by the server,  The actual remote address is the one we recorded.
+  if (!port_->HasMagicCookie(data, size)) {
+    if (locked_) {
+      port_->OnReadPacket(data, size, ext_addr_);
+    } else {
+      LOG(WARNING) << "Dropping packet: entry not locked";
+    }
+    return;
+  }
+
+  ByteBuffer buf(data, size);
+  StunMessage msg;
+  if (!msg.Read(&buf)) {
+    LOG(INFO) << "Incoming packet was not STUN";
+    return;
+  }
+
+  // The incoming packet should be a STUN ALLOCATE response, SEND response, or
+  // DATA indication.
+  if (requests_.CheckResponse(&msg)) {
+    return;
+  } else if (msg.type() == STUN_SEND_RESPONSE) {
+    if (const StunUInt32Attribute* options_attr = msg.GetUInt32(STUN_ATTR_OPTIONS)) {
+      if (options_attr->value() & 0x1) {
+        locked_ = true;
+      }
+    }
+    return;
+  } else if (msg.type() != STUN_DATA_INDICATION) {
+    LOG(INFO) << "Received BAD stun type from server: " << msg.type()
+             ;
+    return;
+  }
+
+  // This must be a data indication.
+
+  const StunAddressAttribute* addr_attr =
+      msg.GetAddress(STUN_ATTR_SOURCE_ADDRESS2);
+  if (!addr_attr) {
+    LOG(INFO) << "Data indication has no source address";
+    return;
+  } else if (addr_attr->family() != 1) {
+    LOG(INFO) << "Source address has bad family";
+    return;
+  }
+
+  SocketAddress remote_addr2(addr_attr->ip(), addr_attr->port());
+
+  const StunByteStringAttribute* data_attr = msg.GetByteString(STUN_ATTR_DATA);
+  if (!data_attr) {
+    LOG(INFO) << "Data indication has no data";
+    return;
+  }
+
+  // Process the actual data and remote address in the normal manner.
+  port_->OnReadPacket(data_attr->bytes(), data_attr->length(), remote_addr2);
+}
+
+void RelayEntry::OnSendPacket(const void* data, size_t size) {
+  SendPacket(data, size);
+}
+
+int RelayEntry::SendPacket(const void* data, size_t size) {
+  const ProtocolAddress * ra = port_->ServerAddress(server_index_);
+  if (!ra) {
+    socket_->SetError(ENOTCONN);
+    return SOCKET_ERROR;
+  }
+  int sent = socket_->SendTo(data, size, ra->address);
+  if (sent <= 0) {
+    LOG(LS_VERBOSE) << "sendto: " << std::strerror(socket_->GetError());
+    assert(sent < 0);
+  }
+  return sent;
+}
+
+AllocateRequest::AllocateRequest(RelayEntry* entry) : entry_(entry) {
+  start_time_ = GetMillisecondCount();
+}
+
+void AllocateRequest::Prepare(StunMessage* request) {
+  request->SetType(STUN_ALLOCATE_REQUEST);
+
+  StunByteStringAttribute* magic_cookie_attr =
+      StunAttribute::CreateByteString(STUN_ATTR_MAGIC_COOKIE);
+  magic_cookie_attr->CopyBytes(
+      entry_->port()->magic_cookie().c_str(),
+      (uint16)entry_->port()->magic_cookie().size());
+  request->AddAttribute(magic_cookie_attr);
+
+  StunByteStringAttribute* username_attr =
+      StunAttribute::CreateByteString(STUN_ATTR_USERNAME);
+  username_attr->CopyBytes(
+      entry_->port()->username_fragment().c_str(),
+      (uint16)entry_->port()->username_fragment().size());
+  request->AddAttribute(username_attr);
+}
+
+int AllocateRequest::GetNextDelay() {
+  int delay = 100 * _max(1 << count_, 2);
+  count_ += 1;
+  if (count_ == 5)
+    timeout_ = true;
+  return delay;
+}
+
+void AllocateRequest::OnResponse(StunMessage* response) {
+  const StunAddressAttribute* addr_attr =
+      response->GetAddress(STUN_ATTR_MAPPED_ADDRESS);
+  if (!addr_attr) {
+    LOG(INFO) << "Allocate response missing mapped address.";
+  } else if (addr_attr->family() != 1) {
+    LOG(INFO) << "Mapped address has bad family";
+  } else {
+    SocketAddress addr(addr_attr->ip(), addr_attr->port());
+    entry_->OnConnect(addr);
+  }
+
+  // We will do a keep-alive regardless of whether this request suceeds.
+  // This should have almost no impact on network usage.
+  entry_->ScheduleKeepAlive();
+}
+
+void AllocateRequest::OnErrorResponse(StunMessage* response) {
+  const StunErrorCodeAttribute* attr = response->GetErrorCode();
+  if (!attr) {
+    LOG(INFO) << "Bad allocate response error code";
+  } else {
+    LOG(INFO) << "Allocate error response:"
+              << " code=" << static_cast<int>(attr->error_code())
+              << " reason='" << attr->reason() << "'";
+  }
+
+  if (GetMillisecondCount() - start_time_ <= RETRY_TIMEOUT)
+    entry_->ScheduleKeepAlive();
+}
+
+void AllocateRequest::OnTimeout() {
+  LOG(INFO) << "Allocate request timed out";
+  entry_->HandleConnectFailure();
+}
+
+} // namespace cricket
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/relayport.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/relayport.h
new file mode 100644
index 00000000..7cfdc015
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/relayport.h
@@ -0,0 +1,93 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __RELAYPORT_H__
+#define __RELAYPORT_H__
+
+#include "talk/p2p/base/port.h"
+#include "talk/p2p/base/stunrequest.h"
+#include <vector>
+
+namespace cricket {
+
+extern const std::string RELAY_PORT_TYPE;
+class RelayEntry;
+
+// Communicates using an allocated port on the relay server.
+class RelayPort: public Port {
+public:
+  RelayPort(
+      Thread* thread, SocketFactory* factory, Network*,
+      const SocketAddress& local_addr,
+      const std::string& username, const std::string& password,
+      const std::string& magic_cookie);
+  virtual ~RelayPort();
+
+  void AddServerAddress(const ProtocolAddress& addr);
+  void AddExternalAddress(const ProtocolAddress& addr);
+
+  typedef std::pair<Socket::Option, int> OptionValue;
+  const std::vector<OptionValue>& options() const { return options_; }
+
+  const std::string& magic_cookie() const { return magic_cookie_; }
+  bool HasMagicCookie(const char* data, size_t size);
+
+  virtual void PrepareAddress();
+  virtual Connection* CreateConnection(const Candidate& address, CandidateOrigin origin);
+
+  virtual int SetOption(Socket::Option opt, int value);
+  virtual int GetError();
+
+  const ProtocolAddress * ServerAddress(size_t index) const;
+
+  void DisposeSocket(AsyncPacketSocket * socket);
+
+protected:
+  void SetReady();
+
+  virtual int SendTo(const void* data, size_t size, const SocketAddress& addr, bool payload);
+  virtual void OnMessage(Message *pmsg);
+
+  // Dispatches the given packet to the port or connection as appropriate.
+  void OnReadPacket(
+      const char* data, size_t size, const SocketAddress& remote_addr);
+
+private:
+  friend class RelayEntry;
+
+  SocketAddress local_addr_;
+  std::deque<ProtocolAddress> server_addr_;
+  bool ready_;
+  std::vector<RelayEntry*> entries_;
+  std::vector<OptionValue> options_;
+  std::string magic_cookie_;
+  int error_;
+};
+
+} // namespace cricket
+
+#endif // __RELAYPORT_H__
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/relayserver.cc b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/relayserver.cc
new file mode 100644
index 00000000..bb52a1d5
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/relayserver.cc
@@ -0,0 +1,657 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "talk/p2p/base/relayserver.h"
+#include "talk/p2p/base/helpers.h"
+#include <algorithm>
+#include <cassert>
+#include <cstring>
+#include <iostream>
+
+#ifdef POSIX
+extern "C" {
+#include <errno.h>
+}
+#endif // POSIX
+
+namespace cricket {
+
+// By default, we require a ping every 90 seconds.
+const int MAX_LIFETIME = 15 * 60 * 1000;
+
+// The number of bytes in each of the usernames we use.
+const uint32 USERNAME_LENGTH = 16;
+
+// Calls SendTo on the given socket and logs any bad results.
+void Send(AsyncPacketSocket* socket, const char* bytes, size_t size,
+          const SocketAddress& addr) {
+  int result = socket->SendTo(bytes, size, addr);
+  if (result < int(size)) {
+    std::cerr << "SendTo wrote only " << result << " of " << int(size)
+              << " bytes" << std::endl;
+  } else if (result < 0) {
+    std::cerr << "SendTo: " << std::strerror(errno) << std::endl;
+  }
+}
+
+// Sends the given STUN message on the given socket.
+void SendStun(const StunMessage& msg,
+              AsyncPacketSocket* socket,
+              const SocketAddress& addr) {
+  ByteBuffer buf;
+  msg.Write(&buf);
+  Send(socket, buf.Data(), buf.Length(), addr);
+}
+
+// Constructs a STUN error response and sends it on the given socket.
+void SendStunError(const StunMessage& msg, AsyncPacketSocket* socket,
+                   const SocketAddress& remote_addr, int error_code,
+                   const char* error_desc, const std::string& magic_cookie) {
+
+  StunMessage err_msg;
+  err_msg.SetType(GetStunErrorResponseType(msg.type()));
+  err_msg.SetTransactionID(msg.transaction_id());
+
+  StunByteStringAttribute* magic_cookie_attr =
+      StunAttribute::CreateByteString(cricket::STUN_ATTR_MAGIC_COOKIE);
+  if (magic_cookie.size() == 0)
+    magic_cookie_attr->CopyBytes(cricket::STUN_MAGIC_COOKIE_VALUE, 4);
+  else
+    magic_cookie_attr->CopyBytes(magic_cookie.c_str(), magic_cookie.size());
+  err_msg.AddAttribute(magic_cookie_attr);
+
+  StunErrorCodeAttribute* err_code = StunAttribute::CreateErrorCode();
+  err_code->SetErrorClass(error_code / 100);
+  err_code->SetNumber(error_code % 100);
+  err_code->SetReason(error_desc);
+  err_msg.AddAttribute(err_code);
+
+  SendStun(err_msg, socket, remote_addr);
+}
+
+RelayServer::RelayServer(Thread* thread) : thread_(thread) {
+}
+
+RelayServer::~RelayServer() {
+  for (unsigned i = 0; i < internal_sockets_.size(); i++)
+    delete internal_sockets_[i];
+  for (unsigned i = 0; i < external_sockets_.size(); i++)
+    delete external_sockets_[i];
+}
+
+void RelayServer::AddInternalSocket(AsyncPacketSocket* socket) {
+  assert(internal_sockets_.end() ==
+      std::find(internal_sockets_.begin(), internal_sockets_.end(), socket));
+  internal_sockets_.push_back(socket);
+  socket->SignalReadPacket.connect(this, &RelayServer::OnInternalPacket);
+}
+
+void RelayServer::RemoveInternalSocket(AsyncPacketSocket* socket) {
+  SocketList::iterator iter =
+      std::find(internal_sockets_.begin(), internal_sockets_.end(), socket);
+  assert(iter != internal_sockets_.end());
+  internal_sockets_.erase(iter);
+  socket->SignalReadPacket.disconnect(this);
+}
+
+void RelayServer::AddExternalSocket(AsyncPacketSocket* socket) {
+  assert(external_sockets_.end() ==
+      std::find(external_sockets_.begin(), external_sockets_.end(), socket));
+  external_sockets_.push_back(socket);
+  socket->SignalReadPacket.connect(this, &RelayServer::OnExternalPacket);
+}
+
+void RelayServer::RemoveExternalSocket(AsyncPacketSocket* socket) {
+  SocketList::iterator iter =
+      std::find(external_sockets_.begin(), external_sockets_.end(), socket);
+  assert(iter != external_sockets_.end());
+  external_sockets_.erase(iter);
+  socket->SignalReadPacket.disconnect(this);
+}
+
+void RelayServer::OnInternalPacket(
+    const char* bytes, size_t size, const SocketAddress& remote_addr,
+    AsyncPacketSocket* socket) {
+
+  // Get the address of the connection we just received on.
+  SocketAddressPair ap(remote_addr, socket->GetLocalAddress());
+  assert(!ap.destination().IsAny());
+
+  // If this did not come from an existing connection, it should be a STUN
+  // allocate request.
+  ConnectionMap::iterator piter = connections_.find(ap);
+  if (piter == connections_.end()) {
+    HandleStunAllocate(bytes, size, ap, socket);
+    return;
+  }
+
+  RelayServerConnection* int_conn = piter->second;
+
+  // Handle STUN requests to the server itself.
+  if (int_conn->binding()->HasMagicCookie(bytes, size)) {
+    HandleStun(int_conn, bytes, size);
+    return;
+  }
+
+  // Otherwise, this is a non-wrapped packet that we are to forward.  Make sure
+  // that this connection has been locked.  (Otherwise, we would not know what
+  // address to forward to.)
+  if (!int_conn->locked()) {
+    std::cerr << "Dropping packet: connection not locked" << std::endl;
+    return;
+  }
+
+  // Forward this to the destination address into the connection.
+  RelayServerConnection* ext_conn = int_conn->binding()->GetExternalConnection(
+      int_conn->default_destination());
+  if (ext_conn) {
+    // TODO: Check the HMAC.
+    ext_conn->Send(bytes, size);
+  } else {
+    // This happens very often and is not an error.
+    //std::cerr << "Dropping packet: no external connection" << std::endl;
+  }
+}
+
+void RelayServer::OnExternalPacket(
+    const char* bytes, size_t size, const SocketAddress& remote_addr,
+    AsyncPacketSocket* socket) {
+
+  // Get the address of the connection we just received on.
+  SocketAddressPair ap(remote_addr, socket->GetLocalAddress());
+  assert(!ap.destination().IsAny());
+
+  // If this connection already exists, then forward the traffic.
+  ConnectionMap::iterator piter = connections_.find(ap);
+  if (piter != connections_.end()) {
+    // TODO: Check the HMAC.
+    RelayServerConnection* ext_conn = piter->second;
+    RelayServerConnection* int_conn =
+        ext_conn->binding()->GetInternalConnection(
+            ext_conn->addr_pair().source());
+    assert(int_conn);
+    int_conn->Send(bytes, size, ext_conn->addr_pair().source());
+    return;
+  }
+
+  // The first packet should always be a STUN / TURN packet.  If it isn't, then
+  // we should just ignore this packet.
+  StunMessage msg;
+  ByteBuffer buf = ByteBuffer(bytes, size);
+  if (!msg.Read(&buf)) {
+    std::cerr << "Dropping packet: first packet not STUN" << std::endl;
+    return;
+  }
+
+  // The initial packet should have a username (which identifies the binding).
+  const StunByteStringAttribute* username_attr =
+      msg.GetByteString(STUN_ATTR_USERNAME);
+  if (!username_attr) {
+    std::cerr << "Dropping packet: no username" << std::endl;
+    return;
+  }
+
+  uint32 length = _min(uint32(username_attr->length()), USERNAME_LENGTH);
+  std::string username(username_attr->bytes(), length);
+  // TODO: Check the HMAC.
+
+  // The binding should already be present.
+  BindingMap::iterator biter = bindings_.find(username);
+  if (biter == bindings_.end()) {
+    // TODO: Turn this back on.  This is the sign of a client bug.
+    //std::cerr << "Dropping packet: no binding with username" << std::endl;
+    return;
+  }
+
+  // Add this authenticted connection to the binding.
+  RelayServerConnection* ext_conn =
+      new RelayServerConnection(biter->second, ap, socket);
+  ext_conn->binding()->AddExternalConnection(ext_conn);
+  AddConnection(ext_conn);
+
+  // We always know where external packets should be forwarded, so we can lock
+  // them from the beginning.
+  ext_conn->Lock();
+
+  // Send this message on the appropriate internal connection.
+  RelayServerConnection* int_conn = ext_conn->binding()->GetInternalConnection(
+      ext_conn->addr_pair().source());
+  assert(int_conn);
+  int_conn->Send(bytes, size, ext_conn->addr_pair().source());
+}
+
+bool RelayServer::HandleStun(
+    const char* bytes, size_t size, const SocketAddress& remote_addr,
+    AsyncPacketSocket* socket, std::string* username, StunMessage* msg) {
+
+  // Parse this into a stun message.
+  ByteBuffer buf = ByteBuffer(bytes, size);
+  if (!msg->Read(&buf)) {
+    SendStunError(*msg, socket, remote_addr, 400, "Bad Request", "");
+    return false;
+  }
+
+  // The initial packet should have a username (which identifies the binding).
+  const StunByteStringAttribute* username_attr =
+      msg->GetByteString(STUN_ATTR_USERNAME);
+  if (!username_attr) {
+    SendStunError(*msg, socket, remote_addr, 432, "Missing Username", "");
+    return false;
+  }
+
+  // Record the username if requested.
+  if (username)
+    username->append(username_attr->bytes(), username_attr->length());
+
+  // TODO: Check for unknown attributes (<= 0x7fff)
+
+  return true;
+}
+
+void RelayServer::HandleStunAllocate(
+    const char* bytes, size_t size, const SocketAddressPair& ap,
+    AsyncPacketSocket* socket) {
+
+  // Make sure this is a valid STUN request.
+  StunMessage request;
+  std::string username;
+  if (!HandleStun(bytes, size, ap.source(), socket, &username, &request))
+    return;
+
+  // Make sure this is a an allocate request.
+  if (request.type() != STUN_ALLOCATE_REQUEST) {
+    SendStunError(request,
+                  socket,
+                  ap.source(),
+                  600,
+                  "Operation Not Supported",
+                  "");
+    return;
+  }
+
+  // TODO: Check the HMAC.
+
+  // Find or create the binding for this username.
+
+  RelayServerBinding* binding;
+
+  BindingMap::iterator biter = bindings_.find(username);
+  if (biter != bindings_.end()) {
+
+    binding = biter->second;
+
+  } else {
+
+    // NOTE: In the future, bindings will be created by the bot only.  This
+    //       else-branch will then disappear.
+
+    // Compute the appropriate lifetime for this binding.
+    uint32 lifetime = MAX_LIFETIME;
+    const StunUInt32Attribute* lifetime_attr =
+        request.GetUInt32(STUN_ATTR_LIFETIME);
+    if (lifetime_attr)
+      lifetime = _min(lifetime, lifetime_attr->value() * 1000);
+
+    binding = new RelayServerBinding(this, username, "0", lifetime);
+    binding->SignalTimeout.connect(this, &RelayServer::OnTimeout);
+    bindings_[username] = binding;
+
+    std::cout << "Added new binding: " << bindings_.size() << " total" << std::endl;
+  }
+
+  // Add this connection to the binding.  It starts out unlocked.
+  RelayServerConnection* int_conn =
+      new RelayServerConnection(binding, ap, socket);
+  binding->AddInternalConnection(int_conn);
+  AddConnection(int_conn);
+
+  // Now that we have a connection, this other method takes over.
+  HandleStunAllocate(int_conn, request);
+}
+
+void RelayServer::HandleStun(
+    RelayServerConnection* int_conn, const char* bytes, size_t size) {
+
+  // Make sure this is a valid STUN request.
+  StunMessage request;
+  std::string username;
+  if (!HandleStun(bytes, size, int_conn->addr_pair().source(),
+                  int_conn->socket(), &username, &request))
+    return;
+
+  // Make sure the username is the one were were expecting.
+  if (username != int_conn->binding()->username()) {
+    int_conn->SendStunError(request, 430, "Stale Credentials");
+    return;
+  }
+
+  // TODO: Check the HMAC.
+
+  // Send this request to the appropriate handler.
+  if (request.type() == STUN_SEND_REQUEST)
+    HandleStunSend(int_conn, request);
+  else if (request.type() == STUN_ALLOCATE_REQUEST)
+    HandleStunAllocate(int_conn, request);
+  else
+    int_conn->SendStunError(request, 600, "Operation Not Supported");
+}
+
+void RelayServer::HandleStunAllocate(
+    RelayServerConnection* int_conn, const StunMessage& request) {
+
+  // Create a response message that includes an address with which external
+  // clients can communicate.
+
+  StunMessage response;
+  response.SetType(STUN_ALLOCATE_RESPONSE);
+  response.SetTransactionID(request.transaction_id());
+
+  StunByteStringAttribute* magic_cookie_attr =
+      StunAttribute::CreateByteString(cricket::STUN_ATTR_MAGIC_COOKIE);
+  magic_cookie_attr->CopyBytes(int_conn->binding()->magic_cookie().c_str(),
+                               int_conn->binding()->magic_cookie().size());
+  response.AddAttribute(magic_cookie_attr);
+
+  size_t index = rand() % external_sockets_.size();
+  SocketAddress ext_addr = external_sockets_[index]->GetLocalAddress();
+
+  StunAddressAttribute* addr_attr =
+      StunAttribute::CreateAddress(STUN_ATTR_MAPPED_ADDRESS);
+  addr_attr->SetFamily(1);
+  addr_attr->SetIP(ext_addr.ip());
+  addr_attr->SetPort(ext_addr.port());
+  response.AddAttribute(addr_attr);
+
+  StunUInt32Attribute* res_lifetime_attr =
+      StunAttribute::CreateUInt32(STUN_ATTR_LIFETIME);
+  res_lifetime_attr->SetValue(int_conn->binding()->lifetime() / 1000);
+  response.AddAttribute(res_lifetime_attr);
+
+  // TODO: Support transport-prefs (preallocate RTCP port).
+  // TODO: Support bandwidth restrictions.
+  // TODO: Add message integrity check.
+
+  // Send a response to the caller.
+  int_conn->SendStun(response);
+}
+
+void RelayServer::HandleStunSend(
+    RelayServerConnection* int_conn, const StunMessage& request) {
+
+  const StunAddressAttribute* addr_attr =
+      request.GetAddress(STUN_ATTR_DESTINATION_ADDRESS);
+  if (!addr_attr) {
+    int_conn->SendStunError(request, 400, "Bad Request");
+    return;
+  }
+
+  const StunByteStringAttribute* data_attr =
+      request.GetByteString(STUN_ATTR_DATA);
+  if (!data_attr) {
+    int_conn->SendStunError(request, 400, "Bad Request");
+    return;
+  }
+
+  SocketAddress ext_addr(addr_attr->ip(), addr_attr->port());
+  RelayServerConnection* ext_conn =
+      int_conn->binding()->GetExternalConnection(ext_addr);
+  if (!ext_conn) {
+    // This happens very often and is not an error.
+    //std::cerr << "Dropping packet: no external connection" << std::endl;
+    return;
+  }
+
+  ext_conn->Send(data_attr->bytes(), data_attr->length());
+
+  const StunUInt32Attribute* options_attr =
+      request.GetUInt32(STUN_ATTR_OPTIONS);
+  if (options_attr && (options_attr->value() & 0x01 != 0)) {
+    int_conn->set_default_destination(ext_addr);
+    int_conn->Lock();
+
+    StunMessage response;
+    response.SetType(STUN_SEND_RESPONSE);
+    response.SetTransactionID(request.transaction_id());
+
+    StunByteStringAttribute* magic_cookie_attr =
+        StunAttribute::CreateByteString(cricket::STUN_ATTR_MAGIC_COOKIE);
+    magic_cookie_attr->CopyBytes(int_conn->binding()->magic_cookie().c_str(),
+                                 int_conn->binding()->magic_cookie().size());
+    response.AddAttribute(magic_cookie_attr);
+
+    StunUInt32Attribute* options2_attr =
+      StunAttribute::CreateUInt32(cricket::STUN_ATTR_OPTIONS);
+    options2_attr->SetValue(0x01);
+    response.AddAttribute(options2_attr);
+    
+    int_conn->SendStun(response);
+  }
+}
+
+void RelayServer::AddConnection(RelayServerConnection* conn) {
+  assert(connections_.find(conn->addr_pair()) == connections_.end());
+  connections_[conn->addr_pair()] = conn;
+}
+
+void RelayServer::RemoveConnection(RelayServerConnection* conn) {
+  ConnectionMap::iterator iter = connections_.find(conn->addr_pair());
+  assert(iter != connections_.end());
+  connections_.erase(iter);
+}
+
+void RelayServer::RemoveBinding(RelayServerBinding* binding) {
+  BindingMap::iterator iter = bindings_.find(binding->username());
+  assert(iter != bindings_.end());
+  bindings_.erase(iter);
+
+  std::cout << "Removed a binding: " << bindings_.size() << " remaining" << std::endl;
+}
+
+void RelayServer::OnTimeout(RelayServerBinding* binding) {
+  // This call will result in all of the necessary clean-up.
+  delete binding;
+}
+
+RelayServerConnection::RelayServerConnection(
+    RelayServerBinding* binding, const SocketAddressPair& addrs,
+    AsyncPacketSocket* socket)
+  : binding_(binding), addr_pair_(addrs), socket_(socket), locked_(false) {
+
+  // The creation of a new connection constitutes a use of the binding.
+  binding_->NoteUsed();
+}
+
+RelayServerConnection::~RelayServerConnection() {
+  // Remove this connection from the server's map (if it exists there).
+  binding_->server()->RemoveConnection(this);
+}
+
+void RelayServerConnection::Send(const char* data, size_t size) {
+  // Note that the binding has been used again.
+  binding_->NoteUsed();
+
+  cricket::Send(socket_, data, size, addr_pair_.source());
+}
+
+void RelayServerConnection::Send(
+    const char* data, size_t size, const SocketAddress& from_addr) {
+  // If the from address is known to the client, we don't need to send it.
+  if (locked() && (from_addr == default_dest_)) {
+    Send(data, size);
+    return;
+  }
+
+  // Wrap the given data in a data-indication packet.
+
+  StunMessage msg;
+  msg.SetType(STUN_DATA_INDICATION);
+  msg.SetTransactionID("0000000000000000");
+
+  StunByteStringAttribute* magic_cookie_attr =
+      StunAttribute::CreateByteString(cricket::STUN_ATTR_MAGIC_COOKIE);
+  magic_cookie_attr->CopyBytes(binding_->magic_cookie().c_str(),
+                               binding_->magic_cookie().size());
+  msg.AddAttribute(magic_cookie_attr);
+
+  StunAddressAttribute* addr_attr =
+      StunAttribute::CreateAddress(STUN_ATTR_SOURCE_ADDRESS2);
+  addr_attr->SetFamily(1);
+  addr_attr->SetIP(from_addr.ip());
+  addr_attr->SetPort(from_addr.port());
+  msg.AddAttribute(addr_attr);
+
+  StunByteStringAttribute* data_attr =
+      StunAttribute::CreateByteString(STUN_ATTR_DATA);
+  assert(size <= 65536);
+  data_attr->CopyBytes(data, uint16(size));
+  msg.AddAttribute(data_attr);
+
+  SendStun(msg);
+}
+
+void RelayServerConnection::SendStun(const StunMessage& msg) {
+  // Note that the binding has been used again.
+  binding_->NoteUsed();
+
+  cricket::SendStun(msg, socket_, addr_pair_.source());
+}
+
+void RelayServerConnection::SendStunError(
+      const StunMessage& request, int error_code, const char* error_desc) {
+  // An error does not indicate use.  If no legitimate use off the binding
+  // occurs, we want it to be cleaned up even if errors are still occuring.
+
+  cricket::SendStunError(
+      request, socket_, addr_pair_.source(), error_code, error_desc,
+      binding_->magic_cookie());
+}
+
+void RelayServerConnection::Lock() {
+  locked_ = true;
+}
+
+void RelayServerConnection::Unlock() {
+  locked_ = false;
+}
+
+// IDs used for posted messages:
+const uint32 MSG_LIFETIME_TIMER = 1;
+
+RelayServerBinding::RelayServerBinding(
+    RelayServer* server, const std::string& username,
+    const std::string& password, uint32 lifetime)
+  : server_(server), username_(username), password_(password),
+    lifetime_(lifetime) {
+
+  // For now, every connection uses the standard magic cookie value.
+  magic_cookie_.append(
+      reinterpret_cast<const char*>(STUN_MAGIC_COOKIE_VALUE), 4);
+
+  // Initialize the last-used time to now.
+  NoteUsed();
+
+  // Set the first timeout check.
+  server_->thread()->PostDelayed(lifetime_, this, MSG_LIFETIME_TIMER);
+}
+
+RelayServerBinding::~RelayServerBinding() {
+  // Clear the outstanding timeout check.
+  server_->thread()->Clear(this);
+
+  // Clean up all of the connections.
+  for (size_t i = 0; i < internal_connections_.size(); ++i)
+    delete internal_connections_[i];
+  for (size_t i = 0; i < external_connections_.size(); ++i)
+    delete external_connections_[i];
+
+  // Remove this binding from the server's map.
+  server_->RemoveBinding(this);
+}
+
+void RelayServerBinding::AddInternalConnection(RelayServerConnection* conn) {
+  internal_connections_.push_back(conn);
+}
+
+void RelayServerBinding::AddExternalConnection(RelayServerConnection* conn) {
+  external_connections_.push_back(conn);
+}
+
+void RelayServerBinding::NoteUsed() {
+  last_used_ = GetMillisecondCount();
+}
+
+bool RelayServerBinding::HasMagicCookie(const char* bytes, size_t size) const {
+  if (size < 24 + magic_cookie_.size()) {
+    return false;
+  } else {
+    return 0 == std::memcmp(
+        bytes + 24, magic_cookie_.c_str(), magic_cookie_.size());
+  }
+}
+
+RelayServerConnection* RelayServerBinding::GetInternalConnection(
+    const SocketAddress& ext_addr) {
+
+  // Look for an internal connection that is locked to this address.
+  for (size_t i = 0; i < internal_connections_.size(); ++i) {
+    if (internal_connections_[i]->locked() &&
+        (ext_addr == internal_connections_[i]->default_destination()))
+      return internal_connections_[i];
+  }
+
+  // If one was not found, we send to the first connection.
+  assert(internal_connections_.size() > 0);
+  return internal_connections_[0];
+}
+
+RelayServerConnection* RelayServerBinding::GetExternalConnection(
+    const SocketAddress& ext_addr) {
+  for (size_t i = 0; i < external_connections_.size(); ++i) {
+    if (ext_addr == external_connections_[i]->addr_pair().source())
+      return external_connections_[i];
+  }
+  return 0;
+}
+
+void RelayServerBinding::OnMessage(Message *pmsg) {
+  if (pmsg->message_id == MSG_LIFETIME_TIMER) {
+    assert(!pmsg->pdata);
+
+    // If the lifetime timeout has been exceeded, then send a signal.
+    // Otherwise, just keep waiting.
+    if (GetMillisecondCount() >= last_used_ + lifetime_) {
+      SignalTimeout(this);
+    } else {
+      server_->thread()->PostDelayed(lifetime_, this, MSG_LIFETIME_TIMER);
+    }
+
+  } else {
+    assert(false);
+  }
+}
+
+} // namespace cricket
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/relayserver.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/relayserver.h
new file mode 100644
index 00000000..01dc3678
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/relayserver.h
@@ -0,0 +1,210 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __RELAYSERVER_H__
+#define __RELAYSERVER_H__
+
+#include "talk/base/asyncudpsocket.h"
+#include "talk/base/socketaddresspair.h"
+#include "talk/base/thread.h"
+#include "talk/base/jtime.h"
+#include "talk/p2p/base/stun.h"
+
+#include <string>
+#include <vector>
+#include <map>
+
+namespace cricket {
+
+class RelayServerBinding;
+class RelayServerConnection;
+
+// Relays traffic between connections to the server that are "bound" together.
+// All connections created with the same username/password are bound together.
+class RelayServer : public sigslot::has_slots<> {
+public:
+  // Creates a server, which will use this thread to post messages to itself.
+  RelayServer(Thread* thread);
+  ~RelayServer();
+
+  Thread* thread() { return thread_; }
+
+  // Updates the set of sockets that the server uses to talk to "internal"
+  // clients.  These are clients that do the "port allocations".
+  void AddInternalSocket(AsyncPacketSocket* socket);
+  void RemoveInternalSocket(AsyncPacketSocket* socket);
+
+  // Updates the set of sockets that the server uses to talk to "external"
+  // clients.  These are the clients that do not do allocations.  They do not
+  // know that these addresses represent a relay server.
+  void AddExternalSocket(AsyncPacketSocket* socket);
+  void RemoveExternalSocket(AsyncPacketSocket* socket);
+
+private:
+  typedef std::vector<AsyncPacketSocket*> SocketList;
+  typedef std::map<std::string,RelayServerBinding*> BindingMap;
+  typedef std::map<SocketAddressPair,RelayServerConnection*> ConnectionMap;
+
+  Thread* thread_;
+  SocketList internal_sockets_;
+  SocketList external_sockets_;
+  BindingMap bindings_;
+  ConnectionMap connections_;
+
+  // Called when a packet is received by the server on one of its sockets.
+  void OnInternalPacket(
+      const char* bytes, size_t size, const SocketAddress& remote_addr,
+      AsyncPacketSocket* socket);
+  void OnExternalPacket(
+      const char* bytes, size_t size, const SocketAddress& remote_addr,
+      AsyncPacketSocket* socket);
+
+  // Processes the relevant STUN request types from the client.
+  bool HandleStun(const char* bytes, size_t size,
+                  const SocketAddress& remote_addr, AsyncPacketSocket* socket,
+                  std::string* username, StunMessage* msg);
+  void HandleStunAllocate(const char* bytes, size_t size,
+                          const SocketAddressPair& ap,
+                          AsyncPacketSocket* socket);
+  void HandleStun(RelayServerConnection* int_conn, const char* bytes,
+                  size_t size);
+  void HandleStunAllocate(RelayServerConnection* int_conn,
+                          const StunMessage& msg);
+  void HandleStunSend(RelayServerConnection* int_conn, const StunMessage& msg);
+
+  // Adds/Removes the a connection or binding.
+  void AddConnection(RelayServerConnection* conn);
+  void RemoveConnection(RelayServerConnection* conn);
+  void RemoveBinding(RelayServerBinding* binding);
+
+  // Called when the timer for checking lifetime times out.
+  void OnTimeout(RelayServerBinding* binding);
+
+  friend class RelayServerConnection;
+  friend class RelayServerBinding;
+};
+
+// Maintains information about a connection to the server.  Each connection is
+// part of one and only one binding.
+class RelayServerConnection {
+public:
+  RelayServerConnection(RelayServerBinding* binding,
+                        const SocketAddressPair& addrs,
+                        AsyncPacketSocket* socket);
+  ~RelayServerConnection();
+
+  RelayServerBinding* binding() { return binding_; }
+  AsyncPacketSocket* socket() { return socket_; }
+
+  // Returns a pair where the source is the remote address and the destination
+  // is the local address.
+  const SocketAddressPair& addr_pair() { return addr_pair_; }
+
+  // Sends a packet to the connected client.  If an address is provided, then
+  // we make sure the internal client receives it, wrapping if necessary.
+  void Send(const char* data, size_t size);
+  void Send(const char* data, size_t size, const SocketAddress& ext_addr);
+
+  // Sends a STUN message to the connected client with no wrapping.
+  void SendStun(const StunMessage& msg);
+  void SendStunError(const StunMessage& request, int code, const char* desc);
+
+  // A locked connection is one for which we know the intended destination of
+  // any raw packet received.
+  bool locked() const { return locked_; }
+  void Lock();
+  void Unlock();
+
+  // Records the address that raw packets should be forwarded to (for internal
+  // packets only; for external, we already know where they go).
+  const SocketAddress& default_destination() const { return default_dest_; }
+  void set_default_destination(const SocketAddress& addr) {
+    default_dest_ = addr;
+  }
+
+private:
+  RelayServerBinding* binding_;
+  SocketAddressPair addr_pair_;
+  AsyncPacketSocket* socket_;
+  bool locked_;
+  SocketAddress default_dest_;
+};
+
+// Records a set of internal and external connections that we relay between,
+// or in other words, that are "bound" together.
+class RelayServerBinding : public MessageHandler {
+public:
+  RelayServerBinding(
+      RelayServer* server, const std::string& username,
+      const std::string& password, uint32 lifetime);
+  virtual ~RelayServerBinding();
+
+  RelayServer* server() { return server_; }
+  uint32 lifetime() { return lifetime_; }
+  const std::string& username() { return username_; }
+  const std::string& password() { return password_; }
+  const std::string& magic_cookie() { return magic_cookie_; }
+
+  // Adds/Removes a connection into the binding.
+  void AddInternalConnection(RelayServerConnection* conn);
+  void AddExternalConnection(RelayServerConnection* conn);
+
+  // We keep track of the use of each binding.  If we detect that it was not
+  // used for longer than the lifetime, then we send a signal.
+  void NoteUsed();
+  sigslot::signal1<RelayServerBinding*> SignalTimeout;
+
+  // Determines whether the given packet has the magic cookie present (in the
+  // right place).
+  bool HasMagicCookie(const char* bytes, size_t size) const;
+
+  // Determines the connection to use to send packets to or from the given
+  // external address.
+  RelayServerConnection* GetInternalConnection(const SocketAddress& ext_addr);
+  RelayServerConnection* GetExternalConnection(const SocketAddress& ext_addr);
+
+  // MessageHandler:
+  void OnMessage(Message *pmsg);
+
+private:
+  RelayServer* server_;
+
+  std::string username_;
+  std::string password_;
+  std::string magic_cookie_;
+
+  std::vector<RelayServerConnection*> internal_connections_;
+  std::vector<RelayServerConnection*> external_connections_;
+
+  uint32 lifetime_;
+  uint32 last_used_;
+  // TODO: bandwidth
+};
+
+} // namespace cricket
+
+#endif // __RELAYSERVER_H__
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/relayserver.pro b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/relayserver.pro
new file mode 100644
index 00000000..41bc6b63
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/relayserver.pro
@@ -0,0 +1,14 @@
+TEMPLATE = app
+INCLUDEPATH = ../../..
+DEFINES += POSIX
+
+include(../../../../../conf.pri)
+
+# Input
+SOURCES += \
+	relayserver.cc \
+	relayserver_main.cc \
+	../../base/host.cc \
+	../../base/socketaddresspair.cc
+
+LIBS += ../../../liblibjingle.a
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/relayserver_main.cc b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/relayserver_main.cc
new file mode 100644
index 00000000..5f624f37
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/relayserver_main.cc
@@ -0,0 +1,75 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "talk/base/host.h"
+#include "talk/base/thread.h"
+#include "talk/p2p/base/relayserver.h"
+#include <iostream>
+#include <assert.h>
+
+#ifdef POSIX
+extern "C" {
+#include <errno.h>
+}
+#endif // POSIX
+
+using namespace cricket;
+
+int main(int argc, char **argv) {
+  if (argc != 1) {
+    std::cerr << "usage: relayserver" << std::endl;
+    return 1;
+  }
+
+  assert(LocalHost().networks().size() >= 2);
+  SocketAddress int_addr(LocalHost().networks()[1]->ip(), 5000);
+  SocketAddress ext_addr(LocalHost().networks()[1]->ip(), 5001);
+  
+  Thread *pthMain = Thread::Current(); 
+  
+  AsyncUDPSocket* int_socket = CreateAsyncUDPSocket(pthMain->socketserver());
+  if (int_socket->Bind(int_addr) < 0) {
+    std::cerr << "bind: " << std::strerror(errno) << std::endl;
+    return 1;
+  }
+
+  AsyncUDPSocket* ext_socket = CreateAsyncUDPSocket(pthMain->socketserver());
+  if (ext_socket->Bind(ext_addr) < 0) {
+    std::cerr << "bind: " << std::strerror(errno) << std::endl;
+    return 1;
+  }
+
+  RelayServer server(pthMain);
+  server.AddInternalSocket(int_socket);
+  server.AddExternalSocket(ext_socket);
+
+  std::cout << "Listening internally at " << int_addr.ToString() << std::endl;
+  std::cout << "Listening externally at " << ext_addr.ToString() << std::endl;
+
+  pthMain->Loop();
+  return 0;
+}
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/session.cc b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/session.cc
new file mode 100644
index 00000000..73873338
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/session.cc
@@ -0,0 +1,421 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "talk/base/common.h"
+#include "talk/base/logging.h"
+#include "talk/p2p/base/helpers.h"
+#include "talk/p2p/base/session.h"
+
+namespace cricket {
+
+const uint32 MSG_TIMEOUT = 1;
+const uint32 MSG_ERROR = 2;
+const uint32 MSG_STATE = 3;
+
+Session::Session(SessionManager *session_manager, const std::string &name,
+    const SessionID& id) {
+  session_manager_ = session_manager;
+  ASSERT(session_manager_->signaling_thread()->IsCurrent());
+  name_ = name;
+  id_ = id;
+  error_ = ERROR_NONE;
+  state_ = STATE_INIT;
+  initiator_ = false;
+  description_ = NULL;
+  remote_description_ = NULL;
+  socket_manager_ = new SocketManager(session_manager_);
+  socket_manager_->SignalCandidatesReady.connect(this, &Session::OnCandidatesReady);
+  socket_manager_->SignalNetworkError.connect(this, &Session::OnNetworkError);
+  socket_manager_->SignalState.connect(this, &Session::OnSocketState);
+  socket_manager_->SignalRequestSignaling.connect(this, &Session::OnRequestSignaling);
+}
+
+Session::~Session() {
+  ASSERT(session_manager_->signaling_thread()->IsCurrent());
+  delete description_;
+  delete remote_description_;
+  delete socket_manager_;
+  session_manager_->signaling_thread()->Clear(this);
+}
+
+P2PSocket *Session::CreateSocket(const std::string &name) {
+  return socket_manager_->CreateSocket(name);
+}
+
+void Session::DestroySocket(P2PSocket *socket) {
+  socket_manager_->DestroySocket(socket);
+}
+
+void Session::OnCandidatesReady(const std::vector<Candidate>& candidates) {
+  SendSessionMessage(SessionMessage::TYPE_CANDIDATES, NULL, &candidates, NULL);
+}
+
+void Session::OnNetworkError() {
+  // Socket manager is experiencing a network error trying to allocate
+  // network resources (usually port allocation)
+
+  set_error(ERROR_NETWORK);
+}
+
+void Session::OnSocketState() {
+  // If the call is not in progress, then we don't care about writability.
+  // We have separate timers for making sure we transition back to the in-
+  // progress state in time.
+  if (state_ != STATE_INPROGRESS)
+    return;
+
+  // Put the timer into the write state.  This is called when the state changes,
+  // so we will restart the timer each time we lose writability.
+  if (socket_manager_->writable()) {
+    session_manager_->signaling_thread()->Clear(this, MSG_TIMEOUT);
+  } else {
+    session_manager_->signaling_thread()->PostDelayed(
+        session_manager_->session_timeout() * 1000, this, MSG_TIMEOUT);
+  }
+}
+
+void Session::OnRequestSignaling() {
+  SignalRequestSignaling();
+}
+
+void Session::OnSignalingReady() {
+  socket_manager_->OnSignalingReady();
+}
+
+void Session::SendSessionMessage(SessionMessage::Type type,
+                                 const SessionDescription* description,
+                                 const std::vector<Candidate>* candidates,
+                                 SessionMessage::Cookie* redirect_cookie) {
+  SessionMessage m;
+  m.set_type(type);
+  m.set_to(remote_address_);
+  m.set_name(name_);
+  m.set_description(description);
+  m.set_session_id(id_);
+  if (candidates)
+    m.set_candidates(*candidates);
+  m.set_redirect_target(redirect_target_);
+  m.set_redirect_cookie(redirect_cookie);
+  SignalOutgoingMessage(this, m);
+}
+
+bool Session::Initiate(const std::string &to, const SessionDescription *description) {
+  ASSERT(session_manager_->signaling_thread()->IsCurrent());
+
+  // Only from STATE_INIT
+  if (state_ != STATE_INIT)
+    return false;
+
+  // Setup for signaling. Initiate is asynchronous. It occurs once the address
+  // candidates are ready.
+  initiator_ = true;
+  remote_address_ = to;
+  description_ = description;
+  SendSessionMessage(SessionMessage::TYPE_INITIATE, description, NULL, NULL);
+  set_state(Session::STATE_SENTINITIATE);
+
+  // Let the socket manager know we now want the candidates
+  socket_manager_->StartProcessingCandidates();
+
+  // Start the session timeout
+  session_manager_->signaling_thread()->Clear(this, MSG_TIMEOUT);
+  session_manager_->signaling_thread()->PostDelayed(session_manager_->session_timeout() * 1000, this, MSG_TIMEOUT);
+  return true;
+}
+
+bool Session::Accept(const SessionDescription *description) {
+  ASSERT(session_manager_->signaling_thread()->IsCurrent());
+
+  // Only if just received initiate
+  if (state_ != STATE_RECEIVEDINITIATE)
+    return false;
+
+  // Setup for signaling. Accept is asynchronous. It occurs once the address
+  // candidates are ready.
+  initiator_ = false;
+  description_ = description;
+  SendSessionMessage(SessionMessage::TYPE_ACCEPT, description, NULL, NULL);
+  set_state(Session::STATE_SENTACCEPT);
+
+  return true;
+}
+
+bool Session::Modify(const SessionDescription *description) {
+  ASSERT(session_manager_->signaling_thread()->IsCurrent());
+
+  // Only if session already STATE_INPROGRESS
+  if (state_ != STATE_INPROGRESS)
+    return false;
+
+  // Modify is asynchronous. It occurs once the address candidates are ready.
+  // Either side can send a modify. It is only valid in an already accepted
+  // session.
+  description_ = description;
+  SendSessionMessage(SessionMessage::TYPE_MODIFY, description, NULL, NULL);
+  set_state(Session::STATE_SENTMODIFY);
+
+  // Start the session timeout
+  session_manager_->signaling_thread()->Clear(this, MSG_TIMEOUT);
+  session_manager_->signaling_thread()->PostDelayed(session_manager_->session_timeout() * 1000, this, MSG_TIMEOUT);
+  return true;
+}
+
+bool Session::Redirect(const std::string& target) {
+  ASSERT(session_manager_->signaling_thread()->IsCurrent());
+
+  // Redirect is sent in response to an initiate or modify, to redirect the
+  // request
+  if (state_ != STATE_RECEIVEDINITIATE)
+    return false;
+
+  initiator_ = false;
+  redirect_target_ = target;
+  SendSessionMessage(SessionMessage::TYPE_REDIRECT, NULL, NULL, NULL);
+
+  // A redirect puts us in the same state as reject.  It just sends a different
+  // kind of reject message, if you like.
+  set_state(STATE_SENTREDIRECT);
+
+  return true;
+}
+
+bool Session::Reject() {
+  ASSERT(session_manager_->signaling_thread()->IsCurrent());
+
+  // Reject is sent in response to an initiate or modify, to reject the
+  // request
+  if (state_ != STATE_RECEIVEDINITIATE && state_ != STATE_RECEIVEDMODIFY)
+    return false;
+
+  initiator_ = false;
+  SendSessionMessage(SessionMessage::TYPE_REJECT, NULL, NULL, NULL);
+  set_state(STATE_SENTREJECT);
+
+  return true;
+}
+
+bool Session::Terminate() {
+  ASSERT(session_manager_->signaling_thread()->IsCurrent());
+
+  // Either side can terminate, at any time.
+  if (state_ == STATE_SENTTERMINATE && state_ != STATE_RECEIVEDTERMINATE)
+    return false;
+
+  // But we don't need to terminate if we already rejected.  The other client
+  // already knows that we're done with this session.
+  if (state_ != STATE_SENTREDIRECT)
+    SendSessionMessage(SessionMessage::TYPE_TERMINATE, NULL, NULL, NULL);
+
+  set_state(STATE_SENTTERMINATE);
+
+  return true;
+}
+
+void Session::OnIncomingError(const SessionMessage &m) {
+  ASSERT(session_manager_->signaling_thread()->IsCurrent());
+
+  // If a candidate message errors out or gets dropped for some reason we
+  // ignore the error.
+  if (m.type() != SessionMessage::TYPE_CANDIDATES) {
+    set_error(ERROR_RESPONSE);
+  }
+}
+
+void Session::OnIncomingMessage(const SessionMessage &m) {
+  ASSERT(session_manager_->signaling_thread()->IsCurrent());
+
+  switch (m.type()) {
+  case SessionMessage::TYPE_INITIATE:
+    remote_description_ = m.description();
+    remote_address_ = m.from();
+    name_ = m.name();
+    initiator_ = false;
+    set_state(STATE_RECEIVEDINITIATE);
+
+    // Let the socket manager know we now want the initial candidates
+    socket_manager_->StartProcessingCandidates();
+    break;
+
+  case SessionMessage::TYPE_ACCEPT:
+    remote_description_ = m.description();
+    set_state(STATE_RECEIVEDACCEPT);
+    break;
+
+  case SessionMessage::TYPE_MODIFY:
+    remote_description_ = m.description();
+    set_state(STATE_RECEIVEDMODIFY);
+    break;
+
+  case SessionMessage::TYPE_CANDIDATES:
+    socket_manager_->AddRemoteCandidates(m.candidates());
+    break;
+
+  case SessionMessage::TYPE_REJECT:
+    set_state(STATE_RECEIVEDREJECT);
+    break;
+
+  case SessionMessage::TYPE_REDIRECT:
+    OnRedirectMessage(m);
+    break;
+
+  case SessionMessage::TYPE_TERMINATE:
+    set_state(STATE_RECEIVEDTERMINATE);
+    break;
+  }
+}
+
+void Session::OnRedirectMessage(const SessionMessage &m) {
+  ASSERT(state_ == STATE_SENTINITIATE);
+  if (state_ != STATE_SENTINITIATE)
+    return;
+
+  ASSERT(m.redirect_target().size() != 0);
+  remote_address_ = m.redirect_target();
+
+  SendSessionMessage(SessionMessage::TYPE_INITIATE, description_, NULL,
+                     m.redirect_cookie()->Copy());
+
+  // Restart the session timeout.
+  session_manager_->signaling_thread()->Clear(this, MSG_TIMEOUT);
+  session_manager_->signaling_thread()->PostDelayed(session_manager_->session_timeout() * 1000, this, MSG_TIMEOUT);
+
+  // Reset all of the sockets back into the initial state.
+  socket_manager_->ResetSockets();
+}
+
+Session::State Session::state() {
+  return state_;
+}
+
+void Session::set_state(State state) {
+  ASSERT(session_manager_->signaling_thread()->IsCurrent());
+  if (state != state_) {
+    state_ = state;
+    SignalState(this, state);
+    session_manager_->signaling_thread()->Post(this, MSG_STATE);
+  }
+}
+
+Session::Error Session::error() {
+  return error_;
+}
+
+void Session::set_error(Error error) {
+  ASSERT(session_manager_->signaling_thread()->IsCurrent());
+  if (error != error_) {
+    error_ = error;
+    SignalError(this, error);
+    session_manager_->signaling_thread()->Post(this, MSG_ERROR);
+  }
+}
+
+const std::string &Session::name() {
+  return name_;
+}
+
+const std::string &Session::remote_address() {
+  return remote_address_;
+}
+
+bool Session::initiator() {
+  return initiator_;
+}
+
+const SessionID& Session::id() {
+  return id_;
+}
+
+const SessionDescription *Session::description() {
+  return description_;
+}
+
+const SessionDescription *Session::remote_description() {
+  return remote_description_;
+}
+
+SessionManager *Session::session_manager() {
+  return session_manager_;
+}
+
+void Session::OnMessage(Message *pmsg) {
+  switch(pmsg->message_id) {
+  case MSG_TIMEOUT:
+    // Session timeout has occured. Check to see if the session is still trying
+    // to signal. If so, the session has timed out.
+    // The Sockets have their own timeout for connectivity.
+    set_error(ERROR_TIME);
+    break;
+
+  case MSG_ERROR:
+    switch (error_) {
+    case ERROR_RESPONSE:
+      // This state could be reached if we get an error in response to an IQ
+      // or if the network is so slow we time out on an individual IQ exchange.
+      // In either case, Terminate (send more messages) and ignore the likely
+      // cascade of more errors.
+
+      // fall through
+    case ERROR_NETWORK:
+    case ERROR_TIME:
+      // Time ran out - no response
+      Terminate();
+      break;
+
+    default:
+      break;
+    }
+    break;
+
+  case MSG_STATE:
+    switch (state_) {
+    case STATE_SENTACCEPT:
+    case STATE_RECEIVEDACCEPT:
+      set_state(STATE_INPROGRESS);
+      session_manager_->signaling_thread()->Clear(this, MSG_TIMEOUT);
+      OnSocketState(); // Update the writability timeout state.
+      break;
+
+    case STATE_SENTREJECT:
+    case STATE_SENTREDIRECT:
+    case STATE_RECEIVEDREJECT:
+      Terminate();
+      break;
+
+    case STATE_SENTTERMINATE:
+    case STATE_RECEIVEDTERMINATE:
+      session_manager_->DestroySession(this);
+      break;
+
+    default:
+      // explicitly ignoring some states here
+      break;
+    }
+    break;
+  }
+}
+
+} // namespace cricket
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/session.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/session.h
new file mode 100644
index 00000000..1414a375
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/session.h
@@ -0,0 +1,140 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _SESSION_H_
+#define _SESSION_H_
+
+#include "talk/base/socketaddress.h"
+#include "talk/p2p/base/sessiondescription.h"
+#include "talk/p2p/base/sessionmanager.h"
+#include "talk/p2p/base/sessionmessage.h"
+#include "talk/p2p/base/socketmanager.h"
+#include "talk/p2p/base/p2psocket.h"
+#include "talk/p2p/base/port.h"
+#include <string>
+
+namespace cricket {
+
+class SessionManager;
+class SocketManager;
+
+// A specific Session created by the SessionManager
+// A Session manages signaling for session setup and tear down, and connectivity
+// with P2PSockets
+
+class Session : public MessageHandler, public sigslot::has_slots<> {
+public:
+  enum State {
+    STATE_INIT = 0,
+    STATE_SENTINITIATE, // sent initiate, waiting for Accept or Reject
+    STATE_RECEIVEDINITIATE, // received an initiate. Call Accept or Reject
+    STATE_SENTACCEPT, // sent accept. begin connectivity establishment
+    STATE_RECEIVEDACCEPT, // received accept. begin connectivity establishment
+    STATE_SENTMODIFY, // sent modify, waiting for Accept or Reject
+    STATE_RECEIVEDMODIFY, // received modify, call Accept or Reject
+    STATE_SENTREJECT, // sent reject after receiving initiate
+    STATE_RECEIVEDREJECT, // received reject after sending initiate
+    STATE_SENTREDIRECT, // sent direct after receiving initiate
+    STATE_SENTTERMINATE, // sent terminate (any time / either side)
+    STATE_RECEIVEDTERMINATE, // received terminate (any time / either side)
+    STATE_INPROGRESS, // session accepted and in progress
+  };
+
+  enum Error {
+    ERROR_NONE = 0, // no error
+    ERROR_TIME, // no response to signaling
+    ERROR_RESPONSE, // error during signaling
+    ERROR_NETWORK, // network error, could not allocate network resources
+  };
+
+  Session(SessionManager *session_manager, const std::string &name, const SessionID& id);
+  ~Session();
+
+  // From MessageHandler
+  void OnMessage(Message *pmsg);
+
+  P2PSocket *CreateSocket(const std::string & name);
+  void DestroySocket(P2PSocket *socket);
+
+  bool Initiate(const std::string &to, const SessionDescription *description);
+  bool Accept(const SessionDescription *description);
+  bool Modify(const SessionDescription *description);
+  bool Reject();
+  bool Redirect(const std::string& target);
+  bool Terminate();
+
+  SessionManager *session_manager();
+  const std::string &name();
+  const std::string &remote_address();
+  bool initiator();
+  const SessionID& id();
+  const SessionDescription *description();
+  const SessionDescription *remote_description();
+
+  State state();
+  Error error();
+
+  void OnSignalingReady();
+  void OnIncomingMessage(const SessionMessage &m);
+  void OnIncomingError(const SessionMessage &m);
+
+  sigslot::signal2<Session *, State> SignalState;
+  sigslot::signal2<Session *, Error> SignalError;
+  sigslot::signal2<Session *, const SessionMessage &> SignalOutgoingMessage;
+  sigslot::signal0<> SignalRequestSignaling;
+
+private:
+  void SendSessionMessage(SessionMessage::Type type,
+                          const SessionDescription* description,
+                          const std::vector<Candidate>* candidates,
+                          SessionMessage::Cookie* redirect_cookie);
+  void OnCandidatesReady(const std::vector<Candidate>& candidates);
+  void OnNetworkError();
+  void OnSocketState();
+  void OnRequestSignaling();
+  void OnRedirectMessage(const SessionMessage &m);
+
+  void set_state(State state);
+  void set_error(Error error);
+
+  bool initiator_;
+  SessionManager *session_manager_;
+  SessionID id_;
+  SocketManager *socket_manager_;
+  std::string name_;
+  std::string remote_address_;
+  const SessionDescription *description_;
+  const SessionDescription *remote_description_;
+  std::string redirect_target_;
+  State state_;
+  Error error_;
+  CriticalSection crit_;
+};
+
+} // namespace cricket
+
+#endif // _SESSION_H_
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/sessiondescription.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/sessiondescription.h
new file mode 100644
index 00000000..28b70845
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/sessiondescription.h
@@ -0,0 +1,42 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _SESSIONDESCRIPTION_H_
+#define _SESSIONDESCRIPTION_H_
+
+namespace cricket {
+
+// The client overrides this with whatever 
+
+class SessionDescription {
+public:
+  virtual ~SessionDescription() {}
+};
+
+} // namespace cricket
+
+#endif // _SESSIONDESCRIPTION_H_
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/sessionid.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/sessionid.h
new file mode 100644
index 00000000..a12535c0
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/sessionid.h
@@ -0,0 +1,94 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _SESSIONID_H_
+#define _SESSIONID_H_
+
+#include "talk/base/basictypes.h"
+#include <string>
+#include <sstream>
+
+namespace cricket {
+
+// Each session is identified by a pair (from,id), where id is only
+// assumed to be unique to the machine identified by from.
+class SessionID {
+public:
+  SessionID() : id_str_("0") {
+  }
+  SessionID(const std::string& initiator, uint32 id)
+    : initiator_(initiator) {
+    set_id(id);
+  }
+  SessionID(const SessionID& sid) 
+    : id_str_(sid.id_str_), initiator_(sid.initiator_) {
+  }
+
+  void set_id(uint32 id) {
+    std::stringstream st;
+    st << id;
+    st >> id_str_;
+  }
+  const std::string id_str() const {
+    return id_str_;
+  }
+  void set_id_str(const std::string &id_str) {
+    id_str_ = id_str;
+  }
+
+  const std::string &initiator() const {
+    return initiator_;
+  }
+  void set_initiator(const std::string &initiator) {
+    initiator_ = initiator;
+  }
+
+  bool operator <(const SessionID& sid) const {
+    int r = initiator_.compare(sid.initiator_);
+    if (r == 0)
+      r = id_str_.compare(sid.id_str_);
+    return r < 0;
+  }
+
+  bool operator ==(const SessionID& sid) const {
+    return (id_str_ == sid.id_str_) && (initiator_ == sid.initiator_);
+  }
+
+  SessionID& operator =(const SessionID& sid) {
+    id_str_ = sid.id_str_;
+    initiator_ = sid.initiator_;
+    return *this;
+  }
+
+private:
+  std::string id_str_;
+  std::string initiator_;
+};
+
+} // namespace cricket
+
+#endif // _SESSIONID_H_
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/sessionmanager.cc b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/sessionmanager.cc
new file mode 100644
index 00000000..4c1c09d9
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/sessionmanager.cc
@@ -0,0 +1,173 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "talk/base/common.h"
+#include "talk/p2p/base/helpers.h"
+#include "sessionmanager.h"
+
+namespace cricket {
+
+SessionManager::SessionManager(PortAllocator *allocator, Thread *worker) {
+  allocator_ = allocator;
+  signaling_thread_ = Thread::Current();
+  if (worker == NULL) {
+    worker_thread_ = Thread::Current();
+  } else {
+    worker_thread_ = worker;
+  }
+  timeout_ = 50;
+}
+
+SessionManager::~SessionManager() {
+  // Note: Session::Terminate occurs asynchronously, so it's too late to
+  // delete them now.  They better be all gone.
+  ASSERT(session_map_.empty());
+  //TerminateAll();
+}
+
+Session *SessionManager::CreateSession(const std::string &name, const std::string& initiator) {
+  return CreateSession(name, SessionID(initiator, CreateRandomId()), false);
+}
+
+Session *SessionManager::CreateSession(const std::string &name, const SessionID& id, bool received_initiate) {
+  Session *session = new Session(this, name, id);
+  session_map_[session->id()] = session;
+  session->SignalRequestSignaling.connect(this, &SessionManager::OnRequestSignaling);
+  SignalSessionCreate(session, received_initiate);
+  return session;
+}
+
+void SessionManager::DestroySession(Session *session) {
+  if (session != NULL) {
+    std::map<SessionID, Session *>::iterator it = session_map_.find(session->id());
+    if (it != session_map_.end()) {
+      SignalSessionDestroy(session);
+      session_map_.erase(it);
+      delete session;
+    }
+  }
+}
+
+Session *SessionManager::GetSession(const SessionID& id) {
+  // If the id isn't present, the [] operator will make a NULL entry
+  std::map<SessionID, Session *>::iterator it = session_map_.find(id);
+  if (it != session_map_.end())
+    return (*it).second;
+  return NULL;
+}
+
+void SessionManager::TerminateAll() {
+  while (session_map_.begin() != session_map_.end()) {
+    Session *session = session_map_.begin()->second;
+    session->Terminate();
+  }
+}
+
+void SessionManager::OnIncomingError(const SessionMessage &m) {
+  // Incoming signaling error. This means, as the result of trying
+  // to send message m, and error was generated. In all cases, a
+  // session should already exist
+
+  Session *session;
+  switch (m.type()) {
+  case SessionMessage::TYPE_INITIATE:
+  case SessionMessage::TYPE_ACCEPT:
+  case SessionMessage::TYPE_MODIFY:
+  case SessionMessage::TYPE_CANDIDATES:
+  case SessionMessage::TYPE_REJECT:
+  case SessionMessage::TYPE_TERMINATE:
+    session = GetSession(m.session_id());
+    break;
+
+  default:
+    return;
+  }
+
+  if (session != NULL)
+    session->OnIncomingError(m);  
+
+}
+
+void SessionManager::OnIncomingMessage(const SessionMessage &m) {
+  // In the case of an incoming initiate, there is no session yet, and one needs to be created.
+  // The other cases have sessions already.
+
+  Session *session;
+  switch (m.type()) {
+  case SessionMessage::TYPE_INITIATE:
+    session = CreateSession(m.name(), m.session_id(), true);
+    break;
+
+  case SessionMessage::TYPE_ACCEPT:
+  case SessionMessage::TYPE_MODIFY:
+  case SessionMessage::TYPE_CANDIDATES:
+  case SessionMessage::TYPE_REJECT:
+  case SessionMessage::TYPE_REDIRECT:
+  case SessionMessage::TYPE_TERMINATE:
+    session = GetSession(m.session_id());
+    break;
+
+  default:
+    return;
+  }
+
+  if (session != NULL)
+    session->OnIncomingMessage(m);
+}
+
+void SessionManager::OnSignalingReady() {
+  for (std::map<SessionID, Session *>::iterator it = session_map_.begin();
+      it != session_map_.end(); ++it) {
+    it->second->OnSignalingReady();
+  }
+}
+
+void SessionManager::OnRequestSignaling() {
+  SignalRequestSignaling();
+}
+
+PortAllocator *SessionManager::port_allocator() const {
+  return allocator_;
+}
+
+Thread *SessionManager::worker_thread() const {
+  return worker_thread_;
+}
+
+Thread *SessionManager::signaling_thread() const {
+  return signaling_thread_;
+}
+
+int SessionManager::session_timeout() {
+  return timeout_;
+}
+
+void SessionManager::set_session_timeout(int timeout) {
+  timeout_ = timeout;
+}
+
+} // namespace cricket
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/sessionmanager.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/sessionmanager.h
new file mode 100644
index 00000000..5ce0e4c5
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/sessionmanager.h
@@ -0,0 +1,86 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _SESSIONMANAGER_H_
+#define _SESSIONMANAGER_H_
+
+#include "talk/base/thread.h"
+#include "talk/p2p/base/portallocator.h"
+#include "talk/p2p/base/session.h"
+#include "talk/p2p/base/sessionmessage.h"
+#include "talk/base/sigslot.h"
+
+#include <string>
+#include <utility>
+#include <map>
+
+namespace cricket {
+
+class Session;
+
+// SessionManager manages session instances
+
+class SessionManager : public sigslot::has_slots<> {
+public:
+  SessionManager(PortAllocator *allocator, Thread *worker_thread = NULL);
+  virtual ~SessionManager();
+
+  Session *CreateSession(const std::string &name, const std::string& initiator);
+  void DestroySession(Session *session);
+  Session *GetSession(const SessionID& id);
+  void TerminateAll();
+  void OnIncomingMessage(const SessionMessage &m);
+  void OnIncomingError(const SessionMessage &m);
+  void OnSignalingReady();
+
+  PortAllocator *port_allocator() const;
+  Thread *worker_thread() const;
+  Thread *signaling_thread() const;
+  int session_timeout();
+  void set_session_timeout(int timeout);
+
+  sigslot::signal2<Session *, bool> SignalSessionCreate;
+  sigslot::signal1<Session *> SignalSessionDestroy;
+
+  // Note: you can connect this directly to OnSignalingReady(), if a signalling
+  // check is not required.
+  sigslot::signal0<> SignalRequestSignaling;
+
+private:
+  Session *CreateSession(const std::string &name, const SessionID& id, bool received_initiate);
+  void OnRequestSignaling();
+
+  int timeout_;
+  Thread *worker_thread_;
+  Thread *signaling_thread_;
+  PortAllocator *allocator_;
+  std::map<SessionID, Session *> session_map_;
+};
+
+} // namespace cricket
+
+#endif // _SESSIONMANAGER_H_
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/sessionmessage.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/sessionmessage.h
new file mode 100644
index 00000000..fc1b0323
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/sessionmessage.h
@@ -0,0 +1,133 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _SESSIONMESSAGE_H_
+#define _SESSIONMESSAGE_H_
+
+#include "talk/p2p/base/candidate.h"
+#include "talk/p2p/base/sessiondescription.h"
+#include "talk/p2p/base/sessionid.h"
+#include "talk/base/basictypes.h"
+#include <string>
+#include <vector>
+#include <sstream>
+
+namespace cricket {
+
+class SessionMessage {
+public:
+  enum Type {
+    TYPE_INITIATE = 0,          // Initiate message
+    TYPE_ACCEPT,                // Accept message
+    TYPE_MODIFY,                // Modify message
+    TYPE_CANDIDATES,            // Candidates message
+    TYPE_REJECT,                // Reject message
+    TYPE_REDIRECT,              // Reject message
+    TYPE_TERMINATE,             // Terminate message
+  };
+
+  class Cookie {
+  public:
+    virtual ~Cookie() {}
+
+    // Returns a copy of this cookie.
+    virtual Cookie* Copy() = 0;
+  };
+
+  Type type() const {
+    return type_;
+  }
+  void set_type(Type type) {
+    type_ = type;
+  }
+  const SessionID& session_id() const {
+    return id_;
+  }
+  SessionID& session_id() {
+    return id_;
+  }
+  void set_session_id(const SessionID& id) {
+    id_ = id;
+  }
+  const std::string &from() const {
+    return from_;
+  }
+  void set_from(const std::string &from) {
+    from_ = from;
+  }
+  const std::string &to() const {
+    return to_;
+  }
+  void set_to(const std::string &to) {
+    to_ = to;
+  }
+  const std::string &name() const {
+    return name_;
+  }
+  void set_name(const std::string &name) {
+    name_ = name;
+  }
+  const std::string &redirect_target() const {
+    return redirect_target_;
+  }
+  void set_redirect_target(const std::string &redirect_target) {
+    redirect_target_ = redirect_target;
+  }
+  Cookie *redirect_cookie() const {
+    return redirect_cookie_;
+  }
+  void set_redirect_cookie(Cookie* redirect_cookie) {
+    redirect_cookie_ = redirect_cookie;
+  }
+  const SessionDescription *description() const {
+    return description_;
+  }
+  void set_description(const SessionDescription *description) {
+    description_ = description;
+  }
+  const std::vector<Candidate> &candidates() const {
+    return candidates_;
+  }
+  void set_candidates(const std::vector<Candidate> &candidates) {
+    candidates_ = candidates;
+  }
+
+private:
+  Type type_;
+  SessionID id_;
+  std::string from_;
+  std::string to_;
+  std::string name_;
+  const SessionDescription *description_;
+  std::vector<Candidate> candidates_;
+  std::string redirect_target_;
+  Cookie* redirect_cookie_;
+};
+
+} // namespace cricket
+
+#endif // _SESSIONMESSAGE_H_
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/socketmanager.cc b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/socketmanager.cc
new file mode 100644
index 00000000..2f0d67b8
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/socketmanager.cc
@@ -0,0 +1,273 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if defined(_MSC_VER) && _MSC_VER < 1300
+#pragma warning(disable:4786)
+#endif
+#include "socketmanager.h"
+#include <cassert>
+
+namespace cricket {
+
+const uint32 MSG_CREATESOCKET = 1;
+const uint32 MSG_DESTROYSOCKET = 2;
+const uint32 MSG_ONSIGNALINGREADY = 3;
+const uint32 MSG_CANDIDATESREADY = 4;
+const uint32 MSG_ADDREMOTECANDIDATES = 5;
+const uint32 MSG_ONREQUESTSIGNALING = 6;
+const uint32 MSG_RESETSOCKETS = 7;
+
+struct CreateParams {
+  CreateParams() {}
+  P2PSocket *socket;
+  std::string name;
+};
+
+SocketManager::SocketManager(SessionManager *session_manager) {
+  session_manager_ = session_manager;
+  candidates_requested_ = false;
+  writable_ = false;
+}
+
+SocketManager::~SocketManager() {
+  assert(Thread::Current() == session_manager_->signaling_thread());
+
+  // Are the sockets destroyed? If not, destroy them
+
+  critSM_.Enter();
+  while (sockets_.size() != 0) {
+    P2PSocket *socket = sockets_[0];
+    critSM_.Leave();
+    DestroySocket(socket);
+    critSM_.Enter();
+  }
+  critSM_.Leave();
+
+  // Clear queues
+
+  session_manager_->signaling_thread()->Clear(this);
+  session_manager_->worker_thread()->Clear(this);
+}
+
+P2PSocket *SocketManager::CreateSocket(const std::string &name) {
+  // Can occur on any thread
+  CreateParams params;
+  params.name = name;
+  params.socket = NULL;
+  TypedMessageData<CreateParams *> data(&params);
+  session_manager_->worker_thread()->Send(this, MSG_CREATESOCKET, &data);
+  return data.data()->socket;
+}
+
+P2PSocket *SocketManager::CreateSocket_w(const std::string &name) {
+  // Only on worker thread
+  assert(Thread::Current() == session_manager_->worker_thread());
+  CritScope cs(&critSM_);
+  P2PSocket *socket = new P2PSocket(name, session_manager_->port_allocator());
+  socket->SignalCandidatesReady.connect(this, &SocketManager::OnCandidatesReady);
+  socket->SignalState.connect(this, &SocketManager::OnSocketState);
+  socket->SignalRequestSignaling.connect(this, &SocketManager::OnRequestSignaling);
+  sockets_.push_back(socket);
+  socket->StartProcessingCandidates();
+  return socket;
+}
+
+void SocketManager::DestroySocket(P2PSocket *socket) {
+  // Can occur on any thread
+  TypedMessageData<P2PSocket *> data(socket);
+  session_manager_->worker_thread()->Send(this, MSG_DESTROYSOCKET, &data);
+}
+
+void SocketManager::DestroySocket_w(P2PSocket *socket) {
+  // Only on worker thread
+  assert(Thread::Current() == session_manager_->worker_thread());
+
+  // Only if socket exists
+  CritScope cs(&critSM_);
+  std::vector<P2PSocket *>::iterator it;
+  it = std::find(sockets_.begin(), sockets_.end(), socket);
+  if (it == sockets_.end())
+    return;
+  sockets_.erase(it);
+  delete socket;
+}
+
+void SocketManager::StartProcessingCandidates() {
+  // Only on signaling thread
+  assert(Thread::Current() == session_manager_->signaling_thread());  
+
+  // When sockets are created, their candidates are requested. 
+  // When the candidates are ready, the client is signaled
+  // on the signaling thread
+  candidates_requested_ = true;
+  session_manager_->signaling_thread()->Post(this, MSG_CANDIDATESREADY);
+}
+
+void SocketManager::OnSignalingReady() {
+  session_manager_->worker_thread()->Post(this, MSG_ONSIGNALINGREADY);
+}
+
+void SocketManager::OnSignalingReady_w() {
+  // Only on worker thread
+  assert(Thread::Current() == session_manager_->worker_thread());
+  for (uint32 i = 0; i < sockets_.size(); ++i) {
+    sockets_[i]->OnSignalingReady();
+  }
+}
+
+void SocketManager::OnCandidatesReady(
+    P2PSocket *socket, const std::vector<Candidate>& candidates) {
+  // Only on worker thread
+  assert(Thread::Current() == session_manager_->worker_thread());
+
+  // Remember candidates
+  CritScope cs(&critSM_);
+  std::vector<Candidate>::const_iterator it;
+  for (it = candidates.begin(); it != candidates.end(); it++)
+    candidates_.push_back(*it);
+
+  // If candidates requested, tell signaling thread 
+  if (candidates_requested_)
+    session_manager_->signaling_thread()->Post(this, MSG_CANDIDATESREADY);
+}
+
+void SocketManager::ResetSockets() {
+  assert(Thread::Current() == session_manager_->signaling_thread());  
+  session_manager_->worker_thread()->Post(this, MSG_RESETSOCKETS);
+}
+
+void SocketManager::ResetSockets_w() {
+  assert(Thread::Current() == session_manager_->worker_thread());  
+
+  for (size_t i = 0; i < sockets_.size(); ++i)
+    sockets_[i]->Reset();
+}
+
+void SocketManager::OnSocketState(P2PSocket* socket, P2PSocket::State state) {
+  assert(Thread::Current() == session_manager_->worker_thread());
+
+  bool writable = false;
+  for (uint32 i = 0; i < sockets_.size(); ++i)
+    if (sockets_[i]->writable())
+      writable = true;
+
+  if (writable_ != writable) {
+    writable_ = writable;
+    SignalState();
+  }
+}
+
+void SocketManager::OnRequestSignaling() {
+  assert(Thread::Current() == session_manager_->worker_thread());
+  session_manager_->signaling_thread()->Post(this, MSG_ONREQUESTSIGNALING);
+}
+
+
+void SocketManager::AddRemoteCandidates(const std::vector<Candidate> &remote_candidates) {
+  assert(Thread::Current() == session_manager_->signaling_thread());
+  TypedMessageData<std::vector<Candidate> > *data = new TypedMessageData<std::vector<Candidate> >(remote_candidates);
+  session_manager_->worker_thread()->Post(this, MSG_ADDREMOTECANDIDATES, data);
+}
+
+void SocketManager::AddRemoteCandidates_w(const std::vector<Candidate> &remote_candidates) {
+  assert(Thread::Current() == session_manager_->worker_thread());
+
+  // Local and remote candidates now exist, so connectivity checking can
+  // commence. Tell the P2PSockets about the remote candidates.
+  // Group candidates by socket name
+
+  CritScope cs(&critSM_);
+  std::vector<P2PSocket *>::iterator it_socket;
+  for (it_socket = sockets_.begin(); it_socket != sockets_.end(); it_socket++) {
+    // Create a vector of remote candidates for each socket
+    std::string name = (*it_socket)->name();
+    std::vector<Candidate> candidate_bundle;
+    std::vector<Candidate>::const_iterator it_candidate;
+    for (it_candidate = remote_candidates.begin(); it_candidate != remote_candidates.end(); it_candidate++) {
+      if ((*it_candidate).name() == name)
+        candidate_bundle.push_back(*it_candidate);
+    }
+    if (candidate_bundle.size() != 0)
+      (*it_socket)->AddRemoteCandidates(candidate_bundle);
+  }
+}
+
+void SocketManager::OnMessage(Message *message) {
+  switch (message->message_id) {
+  case MSG_CREATESOCKET:
+    {
+      assert(Thread::Current() == session_manager_->worker_thread());
+      TypedMessageData<CreateParams *> *params = static_cast<TypedMessageData<CreateParams *> *>(message->pdata);
+      params->data()->socket = CreateSocket_w(params->data()->name);
+    }
+    break;
+
+  case MSG_DESTROYSOCKET:
+    {
+      assert(Thread::Current() == session_manager_->worker_thread());
+      TypedMessageData<P2PSocket *> *data = static_cast<TypedMessageData<P2PSocket *> *>(message->pdata);
+      DestroySocket_w(data->data());
+    }
+    break;
+
+  case MSG_ONSIGNALINGREADY:
+    assert(Thread::Current() == session_manager_->worker_thread());
+    OnSignalingReady_w();
+    break;
+
+  case MSG_ONREQUESTSIGNALING:
+    assert(Thread::Current() == session_manager_->signaling_thread());  
+    SignalRequestSignaling();
+    break;
+
+  case MSG_CANDIDATESREADY:
+    assert(Thread::Current() == session_manager_->signaling_thread());  
+    if (candidates_requested_) {
+      CritScope cs(&critSM_);
+      if (candidates_.size() > 0) {
+        SignalCandidatesReady(candidates_);
+        candidates_.clear();
+      }
+    }
+    break;
+
+  case MSG_ADDREMOTECANDIDATES:
+    {
+      assert(Thread::Current() == session_manager_->worker_thread());
+      TypedMessageData<const std::vector<Candidate> > *data = static_cast<TypedMessageData<const std::vector<Candidate> > *>(message->pdata);
+      AddRemoteCandidates_w(data->data());
+      delete data;
+    }
+    break;
+
+  case MSG_RESETSOCKETS:
+    ResetSockets_w();
+    break;
+  }
+}
+
+}
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/socketmanager.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/socketmanager.h
new file mode 100644
index 00000000..3ca1cf74
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/socketmanager.h
@@ -0,0 +1,101 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _SOCKETMANAGER_H_
+#define _SOCKETMANAGER_H_
+
+#include "talk/base/criticalsection.h"
+#include "talk/base/messagequeue.h"
+#include "talk/base/sigslot.h"
+#include "talk/p2p/base/sessionmanager.h"
+#include "talk/p2p/base/candidate.h"
+#include "talk/p2p/base/p2psocket.h"
+#include "talk/p2p/base/socketmanager.h"
+
+#include <string>
+#include <vector>
+
+namespace cricket {
+
+class SessionManager;
+
+// Manages P2PSocket creation/destruction/readiness.
+// Provides thread separation between session and sockets.
+// This allows session to execute on the signaling thread,
+// and sockets to execute on the worker thread, if desired,
+// which is good for some media types (audio/video for example).
+
+class SocketManager : public MessageHandler, public sigslot::has_slots<> {
+public:
+  SocketManager(SessionManager *session_manager);
+  virtual ~SocketManager();
+
+  // Determines whether any of the created sockets are currently writable.
+  bool writable() { return writable_; }
+
+  P2PSocket *CreateSocket(const std::string & name);
+  void DestroySocket(P2PSocket *socket);
+
+  // Start discovering local candidates
+  void StartProcessingCandidates();
+  
+  // Adds the given candidates that were sent by the remote side.
+  void AddRemoteCandidates(const std::vector<Candidate>& candidates);
+
+  // signaling channel is up, ready to transmit candidates as they are discovered
+  void OnSignalingReady();
+
+  // Put all of the sockets back into the initial state.
+  void ResetSockets();
+  
+  sigslot::signal1<const std::vector<Candidate>&> SignalCandidatesReady;
+  sigslot::signal0<> SignalNetworkError;
+  sigslot::signal0<> SignalState;
+  sigslot::signal0<> SignalRequestSignaling;
+
+private:
+  P2PSocket *CreateSocket_w(const std::string &name);
+  void DestroySocket_w(P2PSocket *socket);
+  void OnSignalingReady_w();
+  void AddRemoteCandidates_w(const std::vector<Candidate> &candidates);
+  virtual void OnMessage(Message *message);
+  void OnCandidatesReady(P2PSocket *socket, const std::vector<Candidate>&);
+  void OnSocketState(P2PSocket* socket, P2PSocket::State state);
+  void OnRequestSignaling(void);
+  void ResetSockets_w();
+
+  SessionManager *session_manager_;
+  std::vector<Candidate> candidates_;
+  CriticalSection critSM_;
+  std::vector<P2PSocket *> sockets_;
+  bool candidates_requested_;
+  bool writable_;
+};
+
+}
+
+#endif // _SOCKETMANAGER_H_
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stun.cc b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stun.cc
new file mode 100644
index 00000000..6a22b238
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stun.cc
@@ -0,0 +1,576 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "talk/base/logging.h"
+#include "talk/p2p/base/stun.h"
+#include <iostream>
+#include <cassert>
+
+#if defined(_MSC_VER) && _MSC_VER < 1300
+namespace std {
+  using ::memcpy;
+}
+#endif
+
+namespace cricket {
+
+const std::string STUN_ERROR_REASON_BAD_REQUEST = "BAD REQUEST";
+const std::string STUN_ERROR_REASON_UNAUTHORIZED = "UNAUTHORIZED";
+const std::string STUN_ERROR_REASON_UNKNOWN_ATTRIBUTE = "UNKNOWN ATTRIBUTE";
+const std::string STUN_ERROR_REASON_STALE_CREDENTIALS = "STALE CREDENTIALS";
+const std::string STUN_ERROR_REASON_INTEGRITY_CHECK_FAILURE = "INTEGRITY CHECK FAILURE";
+const std::string STUN_ERROR_REASON_MISSING_USERNAME = "MISSING USERNAME";
+const std::string STUN_ERROR_REASON_USE_TLS = "USE TLS";
+const std::string STUN_ERROR_REASON_SERVER_ERROR = "SERVER ERROR";
+const std::string STUN_ERROR_REASON_GLOBAL_FAILURE = "GLOBAL FAILURE";
+
+StunMessage::StunMessage() : type_(0), length_(0),
+    transaction_id_("0000000000000000") {
+  assert(transaction_id_.size() == 16);
+  attrs_ = new std::vector<StunAttribute*>();
+}
+
+StunMessage::~StunMessage() {
+  for (unsigned i = 0; i < attrs_->size(); i++)
+    delete (*attrs_)[i];
+  delete attrs_;
+}
+
+void StunMessage::SetTransactionID(const std::string& str) {
+  assert(str.size() == 16);
+  transaction_id_ = str;
+}
+
+void StunMessage::AddAttribute(StunAttribute* attr) {
+  attrs_->push_back(attr);
+  length_ += attr->length() + 4;
+}
+
+const StunAddressAttribute*
+StunMessage::GetAddress(StunAttributeType type) const {
+  switch (type) {
+  case STUN_ATTR_MAPPED_ADDRESS:
+  case STUN_ATTR_RESPONSE_ADDRESS:
+  case STUN_ATTR_SOURCE_ADDRESS:
+  case STUN_ATTR_CHANGED_ADDRESS:
+  case STUN_ATTR_REFLECTED_FROM:
+  case STUN_ATTR_ALTERNATE_SERVER:
+  case STUN_ATTR_DESTINATION_ADDRESS:
+  case STUN_ATTR_SOURCE_ADDRESS2:
+    return reinterpret_cast<const StunAddressAttribute*>(GetAttribute(type));
+
+  default:
+    assert(0);
+    return 0;
+  }
+}
+
+const StunUInt32Attribute*
+StunMessage::GetUInt32(StunAttributeType type) const {
+  switch (type) {
+  case STUN_ATTR_CHANGE_REQUEST:
+  case STUN_ATTR_LIFETIME:
+  case STUN_ATTR_BANDWIDTH:
+  case STUN_ATTR_OPTIONS:
+    return reinterpret_cast<const StunUInt32Attribute*>(GetAttribute(type));
+
+  default:
+    assert(0);
+    return 0;
+  }
+}
+
+const StunByteStringAttribute*
+StunMessage::GetByteString(StunAttributeType type) const {
+  switch (type) {
+  case STUN_ATTR_USERNAME:
+  case STUN_ATTR_PASSWORD:
+  case STUN_ATTR_MESSAGE_INTEGRITY:
+  case STUN_ATTR_DATA:
+  case STUN_ATTR_MAGIC_COOKIE:
+    return reinterpret_cast<const StunByteStringAttribute*>(GetAttribute(type));
+
+  default:
+    assert(0);
+    return 0;
+  }
+}
+
+const StunErrorCodeAttribute* StunMessage::GetErrorCode() const {
+  return reinterpret_cast<const StunErrorCodeAttribute*>(
+      GetAttribute(STUN_ATTR_ERROR_CODE));
+}
+
+const StunUInt16ListAttribute* StunMessage::GetUnknownAttributes() const {
+  return reinterpret_cast<const StunUInt16ListAttribute*>(
+      GetAttribute(STUN_ATTR_UNKNOWN_ATTRIBUTES));
+}
+
+const StunTransportPrefsAttribute* StunMessage::GetTransportPrefs() const {
+  return reinterpret_cast<const StunTransportPrefsAttribute*>(
+      GetAttribute(STUN_ATTR_TRANSPORT_PREFERENCES));
+}
+
+const StunAttribute* StunMessage::GetAttribute(StunAttributeType type) const {
+  for (unsigned i = 0; i < attrs_->size(); i++) {
+    if ((*attrs_)[i]->type() == type)
+      return (*attrs_)[i];
+  }
+  return 0;
+}
+
+bool StunMessage::Read(ByteBuffer* buf) {
+  if (!buf->ReadUInt16(type_))
+    return false;
+
+  if (!buf->ReadUInt16(length_))
+    return false;
+
+  std::string transaction_id;
+  if (!buf->ReadString(transaction_id, 16))
+    return false;
+  assert(transaction_id.size() == 16);
+  transaction_id_ = transaction_id;
+
+  if (length_ > buf->Length())
+    return false;
+
+  attrs_->resize(0);
+
+  size_t rest = buf->Length() - length_;
+  while (buf->Length() > rest) {
+    uint16 attr_type, attr_length;
+    if (!buf->ReadUInt16(attr_type))
+      return false;
+    if (!buf->ReadUInt16(attr_length))
+      return false;
+
+    StunAttribute* attr = StunAttribute::Create(attr_type, attr_length);
+    if (!attr || !attr->Read(buf))
+      return false;
+
+    attrs_->push_back(attr);
+  }
+
+  if (buf->Length() != rest) {
+    // fixme: shouldn't be doing this
+    LOG(LERROR) << "wrong message length" 
+               << " (" << (int)rest << " != " << (int)buf->Length() << ")";
+    return false;
+  }
+
+  return true;
+}
+
+void StunMessage::Write(ByteBuffer* buf) const {
+  buf->WriteUInt16(type_);
+  buf->WriteUInt16(length_);
+  buf->WriteString(transaction_id_);
+
+  for (unsigned i = 0; i < attrs_->size(); i++) {
+    buf->WriteUInt16((*attrs_)[i]->type());
+    buf->WriteUInt16((*attrs_)[i]->length());
+    (*attrs_)[i]->Write(buf);
+  }
+}
+
+StunAttribute::StunAttribute(uint16 type, uint16 length)
+    : type_(type), length_(length) {
+}
+
+StunAttribute* StunAttribute::Create(uint16 type, uint16 length) {
+  switch (type) {
+  case STUN_ATTR_MAPPED_ADDRESS:
+  case STUN_ATTR_RESPONSE_ADDRESS:
+  case STUN_ATTR_SOURCE_ADDRESS:
+  case STUN_ATTR_CHANGED_ADDRESS:
+  case STUN_ATTR_REFLECTED_FROM:
+  case STUN_ATTR_ALTERNATE_SERVER:
+  case STUN_ATTR_DESTINATION_ADDRESS:
+  case STUN_ATTR_SOURCE_ADDRESS2:
+    if (length != StunAddressAttribute::SIZE)
+      return 0;
+    return new StunAddressAttribute(type);
+
+  case STUN_ATTR_CHANGE_REQUEST:
+  case STUN_ATTR_LIFETIME:
+  case STUN_ATTR_BANDWIDTH:
+  case STUN_ATTR_OPTIONS:
+    if (length != StunUInt32Attribute::SIZE)
+      return 0;
+    return new StunUInt32Attribute(type);
+
+  case STUN_ATTR_USERNAME:
+  case STUN_ATTR_PASSWORD:
+  case STUN_ATTR_MAGIC_COOKIE:
+    return (length % 4 == 0) ? new StunByteStringAttribute(type, length) : 0;
+
+  case STUN_ATTR_MESSAGE_INTEGRITY:
+    return (length == 20) ? new StunByteStringAttribute(type, length) : 0;
+
+  case STUN_ATTR_DATA:
+    return new StunByteStringAttribute(type, length);
+
+  case STUN_ATTR_ERROR_CODE:
+    if (length < StunErrorCodeAttribute::MIN_SIZE)
+      return 0;
+    return new StunErrorCodeAttribute(type, length);
+
+  case STUN_ATTR_UNKNOWN_ATTRIBUTES:
+    return (length % 2 == 0) ? new StunUInt16ListAttribute(type, length) : 0;
+
+  case STUN_ATTR_TRANSPORT_PREFERENCES:
+    if ((length != StunTransportPrefsAttribute::SIZE1) &&
+	(length != StunTransportPrefsAttribute::SIZE2))
+      return 0;
+    return new StunTransportPrefsAttribute(type, length);
+
+  default:
+    return 0;
+  }
+}
+
+StunAddressAttribute* StunAttribute::CreateAddress(uint16 type) {
+  switch (type) {
+  case STUN_ATTR_MAPPED_ADDRESS:
+  case STUN_ATTR_RESPONSE_ADDRESS:
+  case STUN_ATTR_SOURCE_ADDRESS:
+  case STUN_ATTR_CHANGED_ADDRESS:
+  case STUN_ATTR_REFLECTED_FROM:
+  case STUN_ATTR_ALTERNATE_SERVER:
+  case STUN_ATTR_DESTINATION_ADDRESS:
+  case STUN_ATTR_SOURCE_ADDRESS2:
+    return new StunAddressAttribute(type);
+
+  default:
+    assert(false);
+    return 0;
+  }
+}
+
+StunUInt32Attribute* StunAttribute::CreateUInt32(uint16 type) {
+  switch (type) {
+  case STUN_ATTR_CHANGE_REQUEST:
+  case STUN_ATTR_LIFETIME:
+  case STUN_ATTR_BANDWIDTH:
+  case STUN_ATTR_OPTIONS:
+    return new StunUInt32Attribute(type);
+
+  default:
+    assert(false);
+    return 0;
+  }
+}
+
+StunByteStringAttribute* StunAttribute::CreateByteString(uint16 type) {
+  switch (type) {
+  case STUN_ATTR_USERNAME:
+  case STUN_ATTR_PASSWORD:
+  case STUN_ATTR_MESSAGE_INTEGRITY:
+  case STUN_ATTR_DATA:
+  case STUN_ATTR_MAGIC_COOKIE:
+    return new StunByteStringAttribute(type, 0);
+
+  default:
+    assert(false);
+    return 0;
+  }
+}
+
+StunErrorCodeAttribute* StunAttribute::CreateErrorCode() {
+  return new StunErrorCodeAttribute(
+      STUN_ATTR_ERROR_CODE, StunErrorCodeAttribute::MIN_SIZE);
+}
+
+StunUInt16ListAttribute* StunAttribute::CreateUnknownAttributes() {
+  return new StunUInt16ListAttribute(STUN_ATTR_UNKNOWN_ATTRIBUTES, 0);
+}
+
+StunTransportPrefsAttribute* StunAttribute::CreateTransportPrefs() {
+  return new StunTransportPrefsAttribute(
+      STUN_ATTR_TRANSPORT_PREFERENCES, StunTransportPrefsAttribute::SIZE1);
+}
+
+StunAddressAttribute::StunAddressAttribute(uint16 type)
+    : StunAttribute(type, SIZE), family_(0), port_(0), ip_(0) {
+}
+
+bool StunAddressAttribute::Read(ByteBuffer* buf) {
+  uint8 dummy;
+  if (!buf->ReadUInt8(dummy))
+    return false;
+  if (!buf->ReadUInt8(family_))
+    return false;
+  if (!buf->ReadUInt16(port_))
+    return false;
+  if (!buf->ReadUInt32(ip_))
+    return false;
+  return true;
+}
+
+void StunAddressAttribute::Write(ByteBuffer* buf) const {
+  buf->WriteUInt8(0);
+  buf->WriteUInt8(family_);
+  buf->WriteUInt16(port_);
+  buf->WriteUInt32(ip_);
+}
+
+StunUInt32Attribute::StunUInt32Attribute(uint16 type)
+    : StunAttribute(type, SIZE), bits_(0) {
+}
+
+bool StunUInt32Attribute::GetBit(int index) const {
+  assert((0 <= index) && (index < 32));
+  return static_cast<bool>((bits_ >> index) & 0x1);
+}
+
+void StunUInt32Attribute::SetBit(int index, bool value) {
+  assert((0 <= index) && (index < 32));
+  bits_ &= ~(1 << index);
+  bits_ |= value ? (1 << index) : 0;
+}
+
+bool StunUInt32Attribute::Read(ByteBuffer* buf) {
+  if (!buf->ReadUInt32(bits_))
+    return false;
+  return true;
+}
+
+void StunUInt32Attribute::Write(ByteBuffer* buf) const {
+  buf->WriteUInt32(bits_);
+}
+
+StunByteStringAttribute::StunByteStringAttribute(uint16 type, uint16 length)
+    : StunAttribute(type, length), bytes_(0) {
+}
+
+StunByteStringAttribute::~StunByteStringAttribute() {
+  delete [] bytes_;
+}
+
+void StunByteStringAttribute::SetBytes(char* bytes, uint16 length) {
+  delete [] bytes_;
+  bytes_ = bytes;
+  SetLength(length);
+}
+
+void StunByteStringAttribute::CopyBytes(const char* bytes) {
+  CopyBytes(bytes, (uint16)strlen(bytes));
+}
+
+void StunByteStringAttribute::CopyBytes(const void* bytes, uint16 length) {
+  char* new_bytes = new char[length];
+  std::memcpy(new_bytes, bytes, length);
+  SetBytes(new_bytes, length);
+}
+
+uint8 StunByteStringAttribute::GetByte(int index) const {
+  assert(bytes_);
+  assert((0 <= index) && (index < length()));
+  return static_cast<uint8>(bytes_[index]);
+}
+
+void StunByteStringAttribute::SetByte(int index, uint8 value) {
+  assert(bytes_);
+  assert((0 <= index) && (index < length()));
+  bytes_[index] = value;
+}
+
+bool StunByteStringAttribute::Read(ByteBuffer* buf) {
+  bytes_ = new char[length()];
+  if (!buf->ReadBytes(bytes_, length()))
+    return false;
+  return true;
+}
+
+void StunByteStringAttribute::Write(ByteBuffer* buf) const {
+  buf->WriteBytes(bytes_, length());
+}
+
+StunErrorCodeAttribute::StunErrorCodeAttribute(uint16 type, uint16 length)
+    : StunAttribute(type, length), class_(0), number_(0) {
+}
+
+StunErrorCodeAttribute::~StunErrorCodeAttribute() {
+}
+
+void StunErrorCodeAttribute::SetErrorCode(uint32 code) {
+  class_ = (uint8)((code >> 8) & 0x7);
+  number_ = (uint8)(code & 0xff);
+}
+
+void StunErrorCodeAttribute::SetReason(const std::string& reason) {
+  SetLength(MIN_SIZE + (uint16)reason.size());
+  reason_ = reason;
+}
+
+bool StunErrorCodeAttribute::Read(ByteBuffer* buf) {
+  uint32 val;
+  if (!buf->ReadUInt32(val))
+    return false;
+
+  if ((val >> 11) != 0)
+    LOG(LERROR) << "error-code bits not zero";
+
+  SetErrorCode(val);
+
+  if (!buf->ReadString(reason_, length() - 4))
+    return false;
+
+  return true;
+}
+
+void StunErrorCodeAttribute::Write(ByteBuffer* buf) const {
+  buf->WriteUInt32(error_code());
+  buf->WriteString(reason_);
+}
+
+StunUInt16ListAttribute::StunUInt16ListAttribute(uint16 type, uint16 length)
+    : StunAttribute(type, length) {
+  attr_types_ = new std::vector<uint16>();
+}
+
+StunUInt16ListAttribute::~StunUInt16ListAttribute() {
+  delete attr_types_;
+}
+
+size_t StunUInt16ListAttribute::Size() const {
+  return attr_types_->size();
+}
+
+uint16 StunUInt16ListAttribute::GetType(int index) const {
+  return (*attr_types_)[index];
+}
+
+void StunUInt16ListAttribute::SetType(int index, uint16 value) {
+  (*attr_types_)[index] = value;
+}
+
+void StunUInt16ListAttribute::AddType(uint16 value) {
+  attr_types_->push_back(value);
+  SetLength((uint16)attr_types_->size() * 2);
+}
+
+bool StunUInt16ListAttribute::Read(ByteBuffer* buf) {
+  for (int i = 0; i < length() / 2; i++) {
+    uint16 attr;
+    if (!buf->ReadUInt16(attr))
+      return false;
+    attr_types_->push_back(attr);
+  }
+  return true;
+}
+
+void StunUInt16ListAttribute::Write(ByteBuffer* buf) const {
+  for (unsigned i = 0; i < attr_types_->size(); i++)
+    buf->WriteUInt16((*attr_types_)[i]);
+}
+
+StunTransportPrefsAttribute::StunTransportPrefsAttribute(
+    uint16 type, uint16 length)
+    : StunAttribute(type, length), preallocate_(false), prefs_(0), addr_(0) { 
+}
+
+StunTransportPrefsAttribute::~StunTransportPrefsAttribute() {
+  delete addr_;
+}
+
+void StunTransportPrefsAttribute::SetPreallocateAddress(
+    StunAddressAttribute* addr) {
+  if (!addr) {
+    preallocate_ = false;
+    addr_ = 0;
+    SetLength(SIZE1);
+  } else {
+    preallocate_ = true;
+    addr_ = addr;
+    SetLength(SIZE2);
+  }
+}
+
+bool StunTransportPrefsAttribute::Read(ByteBuffer* buf) {
+  uint32 val;
+  if (!buf->ReadUInt32(val))
+    return false;
+
+  if ((val >> 3) != 0)
+    LOG(LERROR) << "transport-preferences bits not zero";
+
+  preallocate_ = static_cast<bool>((val >> 2) & 0x1);
+  prefs_ = (uint8)(val & 0x3);
+
+  if (preallocate_ && (prefs_ == 3))
+    LOG(LERROR) << "transport-preferences imcompatible P and Typ";
+
+  if (!preallocate_) {
+    if (length() != StunUInt32Attribute::SIZE)
+      return false;
+  } else {
+    if (length() != StunUInt32Attribute::SIZE + StunAddressAttribute::SIZE)
+      return false;
+
+    addr_ = new StunAddressAttribute(STUN_ATTR_SOURCE_ADDRESS);
+    addr_->Read(buf);
+  }
+
+  return true;
+}
+
+void StunTransportPrefsAttribute::Write(ByteBuffer* buf) const {
+  buf->WriteUInt32((preallocate_ ? 4 : 0) | prefs_);
+
+  if (preallocate_)
+    addr_->Write(buf);
+}
+
+StunMessageType GetStunResponseType(StunMessageType request_type) {
+  switch (request_type) {
+  case STUN_SHARED_SECRET_REQUEST:
+    return STUN_SHARED_SECRET_RESPONSE;
+  case STUN_ALLOCATE_REQUEST:
+    return STUN_ALLOCATE_RESPONSE;
+  case STUN_SEND_REQUEST:
+    return STUN_SEND_RESPONSE;
+  default:
+    return STUN_BINDING_RESPONSE;
+  }
+}
+
+StunMessageType GetStunErrorResponseType(StunMessageType request_type) {
+  switch (request_type) {
+  case STUN_SHARED_SECRET_REQUEST:
+    return STUN_SHARED_SECRET_ERROR_RESPONSE;
+  case STUN_ALLOCATE_REQUEST:
+    return STUN_ALLOCATE_ERROR_RESPONSE;
+  case STUN_SEND_REQUEST:
+    return STUN_SEND_ERROR_RESPONSE;
+  default:
+    return STUN_BINDING_ERROR_RESPONSE;
+  }
+}
+
+} // namespace cricket
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stun.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stun.h
new file mode 100644
index 00000000..27a8e4be
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stun.h
@@ -0,0 +1,364 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __STUN_H__
+#define __STUN_H__
+
+// This file contains classes for dealing with the STUN and TURN protocols.
+// Both protocols use the same wire format.
+
+#include "talk/base/basictypes.h"
+#include "talk/base/bytebuffer.h"
+#include <string>
+#include <vector>
+
+namespace cricket {
+
+// These are the types of STUN & TURN messages as of last check.
+enum StunMessageType {
+  STUN_BINDING_REQUEST              = 0x0001,
+  STUN_BINDING_RESPONSE             = 0x0101,
+  STUN_BINDING_ERROR_RESPONSE       = 0x0111,
+  STUN_SHARED_SECRET_REQUEST        = 0x0002,
+  STUN_SHARED_SECRET_RESPONSE       = 0x0102,
+  STUN_SHARED_SECRET_ERROR_RESPONSE = 0x0112,
+  STUN_ALLOCATE_REQUEST             = 0x0003,
+  STUN_ALLOCATE_RESPONSE            = 0x0103,
+  STUN_ALLOCATE_ERROR_RESPONSE      = 0x0113,
+  STUN_SEND_REQUEST                 = 0x0004,
+  STUN_SEND_RESPONSE                = 0x0104,
+  STUN_SEND_ERROR_RESPONSE          = 0x0114,
+  STUN_DATA_INDICATION              = 0x0115
+};
+
+// These are the types of attributes defined in STUN & TURN.  Next to each is
+// the name of the class (T is StunTAttribute) that implements that type.
+enum StunAttributeType {
+  STUN_ATTR_MAPPED_ADDRESS        = 0x0001, // Address
+  STUN_ATTR_RESPONSE_ADDRESS      = 0x0002, // Address
+  STUN_ATTR_CHANGE_REQUEST        = 0x0003, // UInt32
+  STUN_ATTR_SOURCE_ADDRESS        = 0x0004, // Address
+  STUN_ATTR_CHANGED_ADDRESS       = 0x0005, // Address
+  STUN_ATTR_USERNAME              = 0x0006, // ByteString, multiple of 4 bytes
+  STUN_ATTR_PASSWORD              = 0x0007, // ByteString, multiple of 4 bytes
+  STUN_ATTR_MESSAGE_INTEGRITY     = 0x0008, // ByteString, 20 bytes
+  STUN_ATTR_ERROR_CODE            = 0x0009, // ErrorCode
+  STUN_ATTR_UNKNOWN_ATTRIBUTES    = 0x000a, // UInt16List
+  STUN_ATTR_REFLECTED_FROM        = 0x000b, // Address
+  STUN_ATTR_TRANSPORT_PREFERENCES = 0x000c, // TransportPrefs
+  STUN_ATTR_LIFETIME              = 0x000d, // UInt32
+  STUN_ATTR_ALTERNATE_SERVER      = 0x000e, // Address
+  STUN_ATTR_MAGIC_COOKIE          = 0x000f, // ByteString, 4 bytes
+  STUN_ATTR_BANDWIDTH             = 0x0010, // UInt32
+  STUN_ATTR_DESTINATION_ADDRESS   = 0x0011, // Address
+  STUN_ATTR_SOURCE_ADDRESS2       = 0x0012, // Address
+  STUN_ATTR_DATA                  = 0x0013, // ByteString
+  STUN_ATTR_OPTIONS               = 0x8001  // UInt32
+};
+
+enum StunErrorCodes {
+  STUN_ERROR_BAD_REQUEST          = 400,
+  STUN_ERROR_UNAUTHORIZED         = 401,
+  STUN_ERROR_UNKNOWN_ATTRIBUTE    = 420,
+  STUN_ERROR_STALE_CREDENTIALS    = 430,
+  STUN_ERROR_INTEGRITY_CHECK_FAILURE = 431,
+  STUN_ERROR_MISSING_USERNAME     = 432,
+  STUN_ERROR_USE_TLS              = 433,
+  STUN_ERROR_SERVER_ERROR         = 500,
+  STUN_ERROR_GLOBAL_FAILURE       = 600
+};
+
+extern const std::string STUN_ERROR_REASON_BAD_REQUEST;
+extern const std::string STUN_ERROR_REASON_UNAUTHORIZED;
+extern const std::string STUN_ERROR_REASON_UNKNOWN_ATTRIBUTE;
+extern const std::string STUN_ERROR_REASON_STALE_CREDENTIALS;
+extern const std::string STUN_ERROR_REASON_INTEGRITY_CHECK_FAILURE;
+extern const std::string STUN_ERROR_REASON_MISSING_USERNAME;
+extern const std::string STUN_ERROR_REASON_USE_TLS;
+extern const std::string STUN_ERROR_REASON_SERVER_ERROR;
+extern const std::string STUN_ERROR_REASON_GLOBAL_FAILURE;
+
+class StunAttribute;
+class StunAddressAttribute;
+class StunUInt32Attribute;
+class StunByteStringAttribute;
+class StunErrorCodeAttribute;
+class StunUInt16ListAttribute;
+class StunTransportPrefsAttribute;
+
+// Records a complete STUN/TURN message.  Each message consists of a type and
+// any number of attributes.  Each attribute is parsed into an instance of an
+// appropriate class (see above).  The Get* methods will return instances of
+// that attribute class.
+class StunMessage {
+public:
+  StunMessage();
+  ~StunMessage();
+
+  StunMessageType type() const { return static_cast<StunMessageType>(type_); }
+  uint16 length() const { return length_; }
+  const std::string& transaction_id() const { return transaction_id_; }
+
+  void SetType(StunMessageType type) { type_ = type; }
+  void SetTransactionID(const std::string& str);
+
+  const StunAddressAttribute* GetAddress(StunAttributeType type) const;
+  const StunUInt32Attribute* GetUInt32(StunAttributeType type) const;
+  const StunByteStringAttribute* GetByteString(StunAttributeType type) const;
+  const StunErrorCodeAttribute* GetErrorCode() const;
+  const StunUInt16ListAttribute* GetUnknownAttributes() const;
+  const StunTransportPrefsAttribute* GetTransportPrefs() const;
+
+  void AddAttribute(StunAttribute* attr);
+
+  // Parses the STUN/TURN packet in the given buffer and records it here.  The
+  // return value indicates whether this was successful.
+  bool Read(ByteBuffer* buf);
+
+  // Writes this object into a STUN/TURN packet.  Return value is true if
+  // successful.
+  void Write(ByteBuffer* buf) const;
+
+private:
+  uint16 type_;
+  uint16 length_;
+  std::string transaction_id_;
+  std::vector<StunAttribute*>* attrs_;
+
+  const StunAttribute* GetAttribute(StunAttributeType type) const;
+};
+
+// Base class for all STUN/TURN attributes.
+class StunAttribute {
+public:
+  virtual ~StunAttribute() {}
+
+  StunAttributeType type() const {
+    return static_cast<StunAttributeType>(type_);
+  } 
+  uint16 length() const { return length_; }
+
+  // Reads the body (not the type or length) for this type of attribute from
+  // the given buffer.  Return value is true if successful.
+  virtual bool Read(ByteBuffer* buf) = 0;
+
+  // Writes the body (not the type or length) to the given buffer.  Return
+  // value is true if successful.
+  virtual void Write(ByteBuffer* buf) const = 0;
+
+  // Creates an attribute object with the given type and len.
+  static StunAttribute* Create(uint16 type, uint16 length);
+
+  // Creates an attribute object with the given type and smallest length.
+  static StunAddressAttribute* CreateAddress(uint16 type);
+  static StunUInt32Attribute* CreateUInt32(uint16 type);
+  static StunByteStringAttribute* CreateByteString(uint16 type);
+  static StunErrorCodeAttribute* CreateErrorCode();
+  static StunUInt16ListAttribute* CreateUnknownAttributes();
+  static StunTransportPrefsAttribute* CreateTransportPrefs();
+
+protected:
+  StunAttribute(uint16 type, uint16 length);
+
+  void SetLength(uint16 length) { length_ = length; }
+
+private:
+  uint16 type_;
+  uint16 length_;
+};
+
+// Implements STUN/TURN attributes that record an Internet address.
+class StunAddressAttribute : public StunAttribute {
+public:
+  StunAddressAttribute(uint16 type);
+
+#if (_MSC_VER < 1300)
+  enum { SIZE = 8 };
+#else
+  static const uint16 SIZE = 8;
+#endif
+
+  uint8 family() const { return family_; }
+  uint16 port() const { return port_; }
+  uint32 ip() const { return ip_; }
+
+  void SetFamily(uint8 family) { family_ = family; }
+  void SetIP(uint32 ip) { ip_ = ip; }
+  void SetPort(uint16 port) { port_ = port; }
+
+  bool Read(ByteBuffer* buf);
+  void Write(ByteBuffer* buf) const;
+
+private:
+  uint8 family_;
+  uint16 port_;
+  uint32 ip_;
+};
+
+// Implements STUN/TURN attributs that record a 32-bit integer.
+class StunUInt32Attribute : public StunAttribute {
+public:
+  StunUInt32Attribute(uint16 type);
+
+#if (_MSC_VER < 1300)
+  enum { SIZE = 4 };
+#else
+  static const uint16 SIZE = 4;
+#endif
+
+  uint32 value() const { return bits_; }
+
+  void SetValue(uint32 bits) { bits_ = bits; }
+
+  bool GetBit(int index) const;
+  void SetBit(int index, bool value);
+
+  bool Read(ByteBuffer* buf);
+  void Write(ByteBuffer* buf) const;
+
+private:
+  uint32 bits_;
+};
+
+// Implements STUN/TURN attributs that record an arbitrary byte string
+class StunByteStringAttribute : public StunAttribute {
+public:
+  StunByteStringAttribute(uint16 type, uint16 length);
+  ~StunByteStringAttribute();
+
+  const char* bytes() const { return bytes_; }
+
+  void SetBytes(char* bytes, uint16 length);
+
+  void CopyBytes(const char* bytes); // uses strlen
+  void CopyBytes(const void* bytes, uint16 length);
+
+  uint8 GetByte(int index) const;
+  void SetByte(int index, uint8 value);
+
+  bool Read(ByteBuffer* buf);
+  void Write(ByteBuffer* buf) const;
+
+private:
+  char* bytes_;
+};
+
+// Implements STUN/TURN attributs that record an error code.
+class StunErrorCodeAttribute : public StunAttribute {
+public:
+  StunErrorCodeAttribute(uint16 type, uint16 length);
+  ~StunErrorCodeAttribute();
+
+#if (_MSC_VER < 1300)
+  enum { MIN_SIZE = 4 };
+#else
+  static const uint16 MIN_SIZE = 4;
+#endif
+
+  uint32 error_code() const { return (class_ << 8) | number_; }
+  uint8 error_class() const { return class_; }
+  uint8 number() const { return number_; }
+  const std::string& reason() const { return reason_; }
+
+  void SetErrorCode(uint32 code);
+  void SetErrorClass(uint8 eclass) { class_ = eclass; }
+  void SetNumber(uint8 number) { number_ = number; }
+  void SetReason(const std::string& reason);
+
+  bool Read(ByteBuffer* buf);
+  void Write(ByteBuffer* buf) const;
+
+private:
+  uint8 class_;
+  uint8 number_;
+  std::string reason_;
+};
+
+// Implements STUN/TURN attributs that record a list of attribute names.
+class StunUInt16ListAttribute : public StunAttribute {
+public:
+  StunUInt16ListAttribute(uint16 type, uint16 length);
+  ~StunUInt16ListAttribute();
+
+  size_t Size() const;
+  uint16 GetType(int index) const;
+  void SetType(int index, uint16 value);
+  void AddType(uint16 value);
+
+  bool Read(ByteBuffer* buf);
+  void Write(ByteBuffer* buf) const;
+
+private:
+  std::vector<uint16>* attr_types_;
+};
+
+// Implements the TURN TRANSPORT-PREFS attribute, which provides information
+// about the ports to allocate.
+class StunTransportPrefsAttribute : public StunAttribute {
+public:
+  StunTransportPrefsAttribute(uint16 type, uint16 length);
+  ~StunTransportPrefsAttribute();
+
+#if (_MSC_VER < 1300)
+  enum { SIZE1 = 4, SIZE2 = 12 };
+#else
+  static const uint16 SIZE1 = 4;
+  static const uint16 SIZE2 = 12;
+#endif
+
+  bool preallocate() const { return preallocate_; }
+  uint8 preference_type() const { return prefs_; }
+  const StunAddressAttribute* address() const { return addr_; }
+
+  void SetPreferenceType(uint8 prefs) { prefs_ = prefs; }
+
+  // Sets the preallocate address to the given value, or if 0 is given, it sets
+  // to not preallocate.
+  void SetPreallocateAddress(StunAddressAttribute* addr);
+
+  bool Read(ByteBuffer* buf);
+  void Write(ByteBuffer* buf) const;
+
+private:
+  bool preallocate_;
+  uint8 prefs_;
+  StunAddressAttribute* addr_;
+};
+
+// The special MAGIC-COOKIE attribute is used to distinguish TURN packets from
+// other kinds of traffic.
+const char STUN_MAGIC_COOKIE_VALUE[] = { 0x72, char(0xc6), 0x4b, char(0xc6) };
+
+// Returns the (successful) response type for the given request type.
+StunMessageType GetStunResponseType(StunMessageType request_type);
+
+// Returns the error response type for the given request type.
+StunMessageType GetStunErrorResponseType(StunMessageType request_type);
+
+} // namespace cricket
+
+#endif // __STUN_H__
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunport.cc b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunport.cc
new file mode 100644
index 00000000..6d1dc6b1
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunport.cc
@@ -0,0 +1,171 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if defined(_MSC_VER) && _MSC_VER < 1300
+#pragma warning(disable:4786)
+#endif
+#include "talk/base/logging.h"
+#include "talk/p2p/base/stunport.h"
+#include "talk/p2p/base/helpers.h"
+#include <iostream>
+#include <cassert>
+
+#if defined(_MSC_VER) && _MSC_VER < 1300
+namespace std {
+  using ::strerror;
+}
+#endif
+
+#ifdef POSIX
+extern "C" {
+#include <errno.h>
+}
+#endif // POSIX
+
+namespace cricket {
+
+const int KEEPALIVE_DELAY = 10 * 1000; // 10 seconds - sort timeouts
+const int RETRY_DELAY = 50; // 50ms, from ICE spec
+const uint32 RETRY_TIMEOUT = 50 * 1000; // ICE says 50 secs
+
+// Handles a binding request sent to the STUN server.
+class StunPortBindingRequest : public StunRequest {
+public:
+  StunPortBindingRequest(StunPort* port) : port_(port) {
+    start_time_ = GetMillisecondCount();
+  }
+
+  virtual ~StunPortBindingRequest() {
+  }
+
+  virtual void Prepare(StunMessage* request) {
+    request->SetType(STUN_BINDING_REQUEST);
+  }
+
+  virtual void OnResponse(StunMessage* response) {
+    const StunAddressAttribute* addr_attr =
+        response->GetAddress(STUN_ATTR_MAPPED_ADDRESS);
+    if (!addr_attr) {
+      LOG(LERROR) << "Binding response missing mapped address.";
+    } else if (addr_attr->family() != 1) {
+      LOG(LERROR) << "Binding address has bad family";
+    } else {
+      SocketAddress addr(addr_attr->ip(), addr_attr->port());
+      if (port_->candidates().empty())
+        port_->add_address(addr, "udp");
+    }
+
+    // We will do a keep-alive regardless of whether this request suceeds.
+    // This should have almost no impact on network usage.
+    port_->requests_.SendDelayed(new StunPortBindingRequest(port_), KEEPALIVE_DELAY);
+  }
+
+  virtual void OnErrorResponse(StunMessage* response) {
+    const StunErrorCodeAttribute* attr = response->GetErrorCode();
+    if (!attr) {
+      LOG(LERROR) << "Bad allocate response error code";
+    } else {
+      LOG(LERROR) << "Binding error response:"
+                 << " class=" << attr->error_class()
+                 << " number=" << attr->number()
+                 << " reason='" << attr->reason() << "'";
+    }
+
+    if (GetMillisecondCount() - start_time_ <= RETRY_TIMEOUT)
+      port_->requests_.SendDelayed(new StunPortBindingRequest(port_), KEEPALIVE_DELAY);
+  }
+
+  virtual void OnTimeout() {
+    LOG(LERROR) << "Binding request timed out";
+    if (GetMillisecondCount() - start_time_ <= RETRY_TIMEOUT)
+      port_->requests_.SendDelayed(new StunPortBindingRequest(port_), RETRY_DELAY);
+  }
+
+private:
+  uint32 start_time_;
+  StunPort* port_;
+};
+
+const std::string STUN_PORT_TYPE("stun");
+
+StunPort::StunPort(Thread* thread, SocketFactory* factory, Network* network,
+                   const SocketAddress& local_addr,
+                   const SocketAddress& server_addr)
+  : UDPPort(thread, STUN_PORT_TYPE, factory, network),
+    server_addr_(server_addr), requests_(thread), error_(0) {
+
+  socket_ = CreatePacketSocket(PROTO_UDP);
+  socket_->SignalReadPacket.connect(this, &StunPort::OnReadPacket);
+  if (socket_->Bind(local_addr) < 0)
+    PLOG(LERROR, socket_->GetError()) << "bind";
+
+  requests_.SignalSendPacket.connect(this, &StunPort::OnSendPacket);
+}
+
+StunPort::~StunPort() {
+  delete socket_;
+}
+
+void StunPort::PrepareAddress() {
+  requests_.Send(new StunPortBindingRequest(this));
+}
+
+int StunPort::SendTo(
+    const void* data, size_t size, const SocketAddress& addr, bool payload) {
+  int sent = socket_->SendTo(data, size, addr);
+  if (sent < 0)
+    error_ = socket_->GetError();
+  return sent;
+}
+
+int StunPort::SetOption(Socket::Option opt, int value) {
+  return socket_->SetOption(opt, value);
+}
+
+int StunPort::GetError() {
+  return error_;
+}
+
+void StunPort::OnReadPacket(
+    const char* data, size_t size, const SocketAddress& remote_addr,
+    AsyncPacketSocket* socket) {
+  assert(socket == socket_);
+
+  // Look for a response to a binding request.
+  if (requests_.CheckResponse(data, size))
+    return;
+
+  // Process this data packet in the normal manner.
+  UDPPort::OnReadPacket(data, size, remote_addr);
+}
+
+void StunPort::OnSendPacket(const void* data, size_t size) {
+  if (socket_->SendTo(data, size, server_addr_) < 0)
+    PLOG(LERROR, socket_->GetError()) << "sendto";
+}
+
+} // namespace cricket
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunport.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunport.h
new file mode 100644
index 00000000..f042ae14
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunport.h
@@ -0,0 +1,72 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __STUNPORT_H__
+#define __STUNPORT_H__
+
+#include "talk/base/asyncudpsocket.h"
+#include "talk/p2p/base/udpport.h"
+#include "talk/p2p/base/stunrequest.h"
+
+namespace cricket {
+
+extern const std::string STUN_PORT_TYPE;
+
+// Communicates using the address on the outside of a NAT.
+class StunPort : public UDPPort {
+public:
+  StunPort(Thread* thread, SocketFactory* factory, Network* network,
+           const SocketAddress& local_addr, const SocketAddress& server_addr);
+  virtual ~StunPort();
+
+  virtual void PrepareAddress();
+
+  virtual int SetOption(Socket::Option opt, int value);
+  virtual int GetError();
+
+protected:
+  virtual int SendTo(const void* data, size_t size, const SocketAddress& addr, bool payload);
+
+  void OnReadPacket(
+      const char* data, size_t size, const SocketAddress& remote_addr,
+      AsyncPacketSocket* socket);
+
+private:
+  AsyncPacketSocket* socket_;
+  SocketAddress server_addr_;
+  StunRequestManager requests_;
+  int error_;
+
+  friend class StunPortBindingRequest;
+
+  // Sends STUN requests to the server.
+  void OnSendPacket(const void* data, size_t size);
+};
+
+} // namespace cricket
+
+#endif // __STUNPORT_H__
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunrequest.cc b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunrequest.cc
new file mode 100644
index 00000000..14d64735
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunrequest.cc
@@ -0,0 +1,198 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if defined(_MSC_VER) && _MSC_VER < 1300
+#pragma warning(disable:4786)
+#endif
+#include "talk/base/logging.h"
+#include "talk/p2p/base/stunrequest.h"
+#include "talk/p2p/base/helpers.h"
+#include <iostream>
+#include <cassert>
+
+namespace cricket {
+
+const uint32 MSG_STUN_SEND = 1;
+
+const int MAX_SENDS = 9;
+const int DELAY_UNIT = 100; // 100 milliseconds
+const int DELAY_MAX_FACTOR = 16;
+
+StunRequestManager::StunRequestManager(Thread* thread) : thread_(thread) {
+}
+
+StunRequestManager::~StunRequestManager() {
+  while (requests_.begin() != requests_.end()) {
+    StunRequest *request = requests_.begin()->second;
+    requests_.erase(requests_.begin());
+    delete request;
+  }
+}
+
+void StunRequestManager::Send(StunRequest* request) {
+  SendDelayed(request, 0);
+}
+
+void StunRequestManager::SendDelayed(StunRequest* request, int delay) {
+  request->set_manager(this);
+  assert(requests_.find(request->id()) == requests_.end());
+  requests_[request->id()] = request;
+  thread_->PostDelayed(delay, request, MSG_STUN_SEND, NULL);
+}
+
+void StunRequestManager::Remove(StunRequest* request) {
+  assert(request->manager() == this);
+  RequestMap::iterator iter = requests_.find(request->id());
+  if (iter != requests_.end()) {
+    assert(iter->second == request);
+    requests_.erase(iter);
+    thread_->Clear(request);
+  }
+}
+
+void StunRequestManager::Clear() {
+  std::vector<StunRequest*> requests;
+  for (RequestMap::iterator i = requests_.begin(); i != requests_.end(); ++i)
+    requests.push_back(i->second);
+
+  for (uint32 i = 0; i < requests.size(); ++i)
+    Remove(requests[i]);
+}
+
+bool StunRequestManager::CheckResponse(StunMessage* msg) {
+  RequestMap::iterator iter = requests_.find(msg->transaction_id());
+  if (iter == requests_.end())
+    return false;
+
+  StunRequest* request = iter->second;
+  if (msg->type() == GetStunResponseType(request->type())) {
+    request->OnResponse(msg);
+  } else if (msg->type() == GetStunErrorResponseType(request->type())) {
+    request->OnErrorResponse(msg);
+  } else {
+    LOG(LERROR) << "Received response with wrong type: " << msg->type()
+               << " (expecting " << GetStunResponseType(request->type()) << ")";
+    return false;
+  }
+
+  delete request;
+  return true;
+}
+
+bool StunRequestManager::CheckResponse(const char* data, size_t size) {
+  // Check the appropriate bytes of the stream to see if they match the
+  // transaction ID of a response we are expecting.
+
+  if (size < 20)
+    return false;
+
+  std::string id;
+  id.append(data + 4, 16);
+
+  RequestMap::iterator iter = requests_.find(id);
+  if (iter == requests_.end())
+    return false;
+
+  // Parse the STUN message and continue processing as usual.
+
+  ByteBuffer buf(data, size);
+  StunMessage msg;
+  if (!msg.Read(&buf))
+    return false;
+
+  return CheckResponse(&msg);
+}
+
+StunRequest::StunRequest()
+  : manager_(0), id_(CreateRandomString(16)), msg_(0), count_(0),
+    timeout_(false), tstamp_(0) {
+}
+
+StunRequest::StunRequest(StunMessage* request)
+  : manager_(0), id_(request->transaction_id()), msg_(request),
+    count_(0), timeout_(false) {
+}
+
+StunRequest::~StunRequest() {
+  assert(manager_ != NULL);
+  if (manager_) {
+    manager_->Remove(this);
+    manager_->thread_->Clear(this);
+  }
+  delete msg_;
+}
+
+const StunMessageType StunRequest::type() {
+  assert(msg_);
+  return msg_->type();
+}
+
+void StunRequest::set_manager(StunRequestManager* manager) {
+  assert(!manager_);
+  manager_ = manager;
+}
+
+void StunRequest::OnMessage(Message* pmsg) {
+  assert(manager_);
+  assert(pmsg->message_id == MSG_STUN_SEND);
+
+  if (!msg_) {
+    msg_ = new StunMessage();
+    msg_->SetTransactionID(id_);
+    Prepare(msg_);
+    assert(msg_->transaction_id() == id_);
+  }
+
+  if (timeout_) {
+    OnTimeout();
+    delete this;
+    return;
+  }
+
+  tstamp_ = GetMillisecondCount();
+
+  ByteBuffer buf;
+  msg_->Write(&buf);
+  manager_->SignalSendPacket(buf.Data(), buf.Length());
+
+  int delay = GetNextDelay();
+  manager_->thread_->PostDelayed(delay, this, MSG_STUN_SEND, NULL);
+}
+
+uint32 StunRequest::Elapsed() const {
+  return (GetMillisecondCount() - tstamp_);
+}
+
+int StunRequest::GetNextDelay() {
+  int delay = DELAY_UNIT * _min(1 << count_, DELAY_MAX_FACTOR);
+  count_ += 1;
+  if (count_ == MAX_SENDS)
+    timeout_ = true;
+  return delay;
+}
+
+} // namespace cricket
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunrequest.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunrequest.h
new file mode 100644
index 00000000..86acff91
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunrequest.h
@@ -0,0 +1,126 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __STUNREQUESTMANAGER_H__
+#define __STUNREQUESTMANAGER_H__
+
+#include "talk/base/sigslot.h"
+#include "talk/base/thread.h"
+#include "talk/p2p/base/stun.h"
+#include <map>
+#include <string>
+
+namespace cricket {
+
+class StunRequest;
+
+// Manages a set of STUN requests, sending and resending until we receive a
+// response or determine that the request has timed out.
+class StunRequestManager {
+public:
+  StunRequestManager(Thread* thread);
+  ~StunRequestManager();
+
+  // Starts sending the given request (perhaps after a delay).
+  void Send(StunRequest* request);
+  void SendDelayed(StunRequest* request, int delay);
+
+  // Removes a stun request that was added previously.  This will happen
+  // automatically when a request succeeds, fails, or times out.
+  void Remove(StunRequest* request);
+
+  // Removes all stun requests that were added previously.
+  void Clear();
+
+  // Determines whether the given message is a response to one of the
+  // outstanding requests, and if so, processes it appropriately.
+  bool CheckResponse(StunMessage* msg);
+  bool CheckResponse(const char* data, size_t size);
+
+  // Raised when there are bytes to be sent.
+  sigslot::signal2<const void*, size_t> SignalSendPacket;
+
+private:
+  typedef std::map<std::string, StunRequest*> RequestMap;
+
+  Thread* thread_;
+  RequestMap requests_;
+
+  friend class StunRequest;
+};
+
+// Represents an individual request to be sent.  The STUN message can either be
+// constructed beforehand or built on demand.
+class StunRequest : public MessageHandler {
+public:
+  StunRequest();
+  StunRequest(StunMessage* request);
+  virtual ~StunRequest();
+
+  // The manager handling this request (if it has been scheduled for sending).
+  StunRequestManager* manager() { return manager_; }
+
+  // Returns the transaction ID of this request.
+  const std::string& id() { return id_; }
+
+  // Returns the STUN type of the request message.
+  const StunMessageType type();
+
+  // Handles messages for sending and timeout.
+  void OnMessage(Message* pmsg);
+
+  // Time elapsed since last send (in ms)
+  uint32 Elapsed() const;
+
+protected:
+  int count_;
+  bool timeout_;
+
+  // Fills in the actual request to be sent.  Note that the transaction ID will
+  // already be set and cannot be changed.
+  virtual void Prepare(StunMessage* request) {}
+
+  // Called when the message receives a response or times out.
+  virtual void OnResponse(StunMessage* response) {}
+  virtual void OnErrorResponse(StunMessage* response) {}
+  virtual void OnTimeout() {}
+  virtual int GetNextDelay();
+
+private:
+  StunRequestManager* manager_;
+  std::string id_;
+  StunMessage* msg_;
+  uint32 tstamp_;
+
+  void set_manager(StunRequestManager* manager);
+
+  friend class StunRequestManager;
+};
+
+} // namespace cricket
+
+#endif // __STUNREQUESTMANAGER_H__
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunserver.cc b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunserver.cc
new file mode 100644
index 00000000..6e4f6b66
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunserver.cc
@@ -0,0 +1,160 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "talk/base/bytebuffer.h"
+#include "talk/p2p/base/stunserver.h"
+#include <iostream>
+
+#ifdef POSIX
+extern "C" {
+#include <errno.h>
+}
+#endif // POSIX
+
+namespace cricket {
+
+StunServer::StunServer(AsyncUDPSocket* socket) : socket_(socket) {
+  socket_->SignalReadPacket.connect(this, &StunServer::OnPacket);
+}
+
+StunServer::~StunServer() {
+  socket_->SignalReadPacket.disconnect(this);
+}
+
+void StunServer::OnPacket(
+    const char* buf, size_t size, const SocketAddress& remote_addr,
+    AsyncPacketSocket* socket) {
+
+  // TODO: If appropriate, look for the magic cookie before parsing.
+
+  // Parse the STUN message.
+  ByteBuffer bbuf(buf, size);
+  StunMessage msg;
+  if (!msg.Read(&bbuf)) {
+    SendErrorResponse(msg, remote_addr, 400, "Bad Request");
+    return;
+  }
+
+  // TODO: If this is UDP, then we shouldn't allow non-fully-parsed messages.
+
+  // TODO: If unknown non-optiional (<= 0x7fff) attributes are found, send a
+  //       420 "Unknown Attribute" response.
+
+  // TODO: Check that a message-integrity attribute was given (or send 401
+  //       "Unauthorized").  Check that a username attribute was given (or send
+  //       432 "Missing Username").  Look up the username and password.  If it
+  //       is missing or the HMAC is wrong, send 431 "Integrity Check Failure".
+
+  // Send the message to the appropriate handler function.
+  switch (msg.type()) {
+  case STUN_BINDING_REQUEST:
+    OnBindingRequest(&msg, remote_addr);
+    return;
+
+  case STUN_ALLOCATE_REQUEST:
+    OnAllocateRequest(&msg, remote_addr);
+    return;
+
+  default:
+    SendErrorResponse(msg, remote_addr, 600, "Operation Not Supported");
+  }
+}
+
+void StunServer::OnBindingRequest(
+    StunMessage* msg, const SocketAddress& remote_addr) {
+  StunMessage response;
+  response.SetType(STUN_BINDING_RESPONSE);
+  response.SetTransactionID(msg->transaction_id());
+
+  // Tell the user the address that we received their request from.
+  StunAddressAttribute* mapped_addr =
+      StunAttribute::CreateAddress(STUN_ATTR_MAPPED_ADDRESS);
+  mapped_addr->SetFamily(1);
+  mapped_addr->SetPort(remote_addr.port());
+  mapped_addr->SetIP(remote_addr.ip());
+  response.AddAttribute(mapped_addr);
+
+  // Tell the user the address that we are sending the response from.
+  SocketAddress local_addr = socket_->GetLocalAddress();
+  StunAddressAttribute* source_addr =
+      StunAttribute::CreateAddress(STUN_ATTR_SOURCE_ADDRESS);
+  source_addr->SetFamily(1);
+  source_addr->SetPort(local_addr.port());
+  source_addr->SetIP(local_addr.ip());
+  response.AddAttribute(source_addr);
+
+  // TODO: Add username and message-integrity.
+
+  // TODO: Add changed-address.  (Keep information about three other servers.)
+
+  SendResponse(response, remote_addr);
+}
+
+void StunServer::OnAllocateRequest(
+    StunMessage* msg, const SocketAddress& addr) {
+  SendErrorResponse(*msg, addr, 600, "Operation Not Supported");
+}
+
+void StunServer::OnSharedSecretRequest(
+    StunMessage* msg, const SocketAddress& addr) {
+  SendErrorResponse(*msg, addr, 600, "Operation Not Supported");
+}
+
+void StunServer::OnSendRequest(StunMessage* msg, const SocketAddress& addr) {
+  SendErrorResponse(*msg, addr, 600, "Operation Not Supported");
+}
+
+void StunServer::SendErrorResponse(
+    const StunMessage& msg, const SocketAddress& addr, int error_code,
+    const char* error_desc) {
+
+  StunMessage err_msg;
+  err_msg.SetType(GetStunErrorResponseType(msg.type()));
+  err_msg.SetTransactionID(msg.transaction_id());
+
+  StunErrorCodeAttribute* err_code = StunAttribute::CreateErrorCode();
+  err_code->SetErrorClass(error_code / 100);
+  err_code->SetNumber(error_code % 100);
+  err_code->SetReason(error_desc);
+  err_msg.AddAttribute(err_code);
+
+  SendResponse(err_msg, addr);
+}
+
+void StunServer::SendResponse(
+    const StunMessage& msg, const SocketAddress& addr) {
+
+  ByteBuffer buf;
+  msg.Write(&buf);
+
+  // TODO: Allow response addr attribute if sent from another stun server.
+
+  if (socket_->SendTo(buf.Data(), buf.Length(), addr) < 0)
+    std::cerr << "sendto: " << std::strerror(errno) << std::endl;
+}
+
+} // namespace cricket
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunserver.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunserver.h
new file mode 100644
index 00000000..3043645d
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunserver.h
@@ -0,0 +1,73 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __STUNSERVER_H__
+#define __STUNSERVER_H__
+
+#include "talk/base/asyncudpsocket.h"
+#include "talk/p2p/base/stun.h"
+
+namespace cricket {
+
+const int STUN_SERVER_PORT = 3478;
+
+class StunServer : public sigslot::has_slots<> {
+public:
+  // Creates a STUN server, which will listen on the given socket.
+  StunServer(AsyncUDPSocket* socket);
+
+  // Removes the STUN server from the socket, but does not delete the socket.
+  ~StunServer();
+
+protected:
+
+  // Slot for AsyncSocket.PacketRead:
+  void OnPacket(
+      const char* buf, size_t size, const SocketAddress& remote_addr,
+      AsyncPacketSocket* socket);
+
+  // Handlers for the different types of STUN/TURN requests:
+  void OnBindingRequest(StunMessage* msg, const SocketAddress& addr);
+  void OnAllocateRequest(StunMessage* msg, const SocketAddress& addr);
+  void OnSharedSecretRequest(StunMessage* msg, const SocketAddress& addr);
+  void OnSendRequest(StunMessage* msg, const SocketAddress& addr);
+
+  // Sends an error response to the given message back to the user.
+  void SendErrorResponse(
+      const StunMessage& msg, const SocketAddress& addr, int error_code,
+      const char* error_desc);
+
+  // Sends the given message to the appropriate destination.
+  void SendResponse(const StunMessage& msg, const SocketAddress& addr);
+
+private:
+  AsyncUDPSocket* socket_;
+};
+
+} // namespace cricket
+
+#endif // __STUNSERVER_H__
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunserver.pro b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunserver.pro
new file mode 100644
index 00000000..dce92ec4
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunserver.pro
@@ -0,0 +1,14 @@
+TEMPLATE = app
+INCLUDEPATH = ../../..
+DEFINES += POSIX
+
+include(../../../../../conf.pri)
+
+# Input
+SOURCES += \
+	stunserver.cc \
+	stunserver_main.cc \
+	../../base/host.cc #\
+#	../../base/socketaddresspair.cc
+
+LIBS += ../../../liblibjingle.a
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunserver_main.cc b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunserver_main.cc
new file mode 100644
index 00000000..bd8a96e5
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/stunserver_main.cc
@@ -0,0 +1,66 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "talk/base/host.h"
+#include "talk/base/thread.h"
+#include "talk/p2p/base/stunserver.h"
+#include <iostream>
+
+#ifdef POSIX
+extern "C" {
+#include <errno.h>
+}
+#endif // POSIX
+
+using namespace cricket;
+
+int main(int argc, char* argv[]) {
+  if (argc != 1) {
+    std::cerr << "usage: stunserver" << std::endl;
+    return 1;
+  }
+
+  SocketAddress server_addr(LocalHost().networks()[1]->ip(), 7000);
+
+  Thread *pthMain = Thread::Current(); 
+  
+  AsyncUDPSocket* server_socket = CreateAsyncUDPSocket(pthMain->socketserver());
+  if (server_socket->Bind(server_addr) < 0) {
+    std::cerr << "bind: " << std::strerror(errno) << std::endl;
+    return 1;
+  }
+
+  StunServer* server = new StunServer(server_socket);
+
+  std::cout << "Listening at " << server_addr.ToString() << std::endl;
+
+  pthMain->Loop();
+
+  delete server;
+  delete server_socket;
+  return 0;
+}
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/tcpport.cc b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/tcpport.cc
new file mode 100644
index 00000000..a2d2adc6
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/tcpport.cc
@@ -0,0 +1,250 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if defined(_MSC_VER) && _MSC_VER < 1300
+#pragma warning(disable:4786)
+#endif
+#include "talk/p2p/base/tcpport.h"
+#include "talk/base/logging.h"
+#ifdef WIN32
+#include "talk/base/winfirewall.h"
+#endif // WIN32
+#include <iostream>
+#include <cassert>
+
+#if defined(_MSC_VER) && _MSC_VER < 1300
+namespace std {
+  using ::strerror;
+}
+#endif
+
+#ifdef POSIX
+extern "C" {
+#include <errno.h>
+}
+#endif // POSIX
+
+namespace cricket {
+
+#ifdef WIN32
+static WinFirewall win_firewall;
+#endif  // WIN32
+
+TCPPort::TCPPort(Thread* thread, SocketFactory* factory, Network* network,
+                 const SocketAddress& address)
+    : Port(thread, LOCAL_PORT_TYPE, factory, network), error_(0) {
+  incoming_only_ = (address.port() != 0);
+  socket_ = thread->socketserver()->CreateAsyncSocket(SOCK_STREAM);
+  socket_->SignalReadEvent.connect(this, &TCPPort::OnAcceptEvent);
+  if (socket_->Bind(address) < 0)
+    LOG(INFO) << "bind: " << std::strerror(socket_->GetError());
+}
+
+TCPPort::~TCPPort() {
+  delete socket_;
+}
+
+Connection* TCPPort::CreateConnection(const Candidate& address, CandidateOrigin origin) {
+  // We only support TCP protocols
+  if ((address.protocol() != "tcp") && (address.protocol() != "ssltcp"))
+    return 0;
+
+  // We can't accept TCP connections incoming on other ports
+  if (origin == ORIGIN_OTHER_PORT)
+    return 0;
+
+  // Check if we are allowed to make outgoing TCP connections
+  if (incoming_only_ && (origin == ORIGIN_MESSAGE))
+    return 0;
+
+  // We don't know how to act as an ssl server yet
+  if ((address.protocol() == "ssltcp") && (origin == ORIGIN_THIS_PORT))
+    return 0;
+
+  TCPConnection* conn = 0;
+  if (AsyncTCPSocket * socket = GetIncoming(address.address(), true)) {
+    socket->SignalReadPacket.disconnect(this);
+    conn = new TCPConnection(this, address, socket);
+  } else {
+    conn = new TCPConnection(this, address);
+  }
+  AddConnection(conn);
+  return conn;
+}
+
+void TCPPort::PrepareAddress() {
+  assert(socket_);
+
+  bool allow_listen = true;
+#ifdef WIN32
+  if (win_firewall.Initialize()) {
+    char module_path[MAX_PATH + 1] = { 0 };
+    ::GetModuleFileNameA(NULL, module_path, MAX_PATH);
+    if (win_firewall.Enabled() && !win_firewall.Authorized(module_path)) {
+      allow_listen = false;
+    }
+  }
+#endif // WIN32
+  if (allow_listen) {
+    if (socket_->Listen(5) < 0)
+      LOG(INFO) << "listen: " << std::strerror(socket_->GetError());
+  } else {
+    LOG(INFO) << "not listening due to firewall restrictions";
+  }
+  // Note: We still add the address, since otherwise the remote side won't recognize
+  // our incoming TCP connections.
+  add_address(socket_->GetLocalAddress(), "tcp");
+}
+
+int TCPPort::SendTo(const void* data, size_t size, const SocketAddress& addr, bool payload) {
+  AsyncTCPSocket * socket = 0;
+
+  if (TCPConnection * conn = static_cast<TCPConnection*>(GetConnection(addr))) {
+    socket = conn->socket();
+  } else {
+    socket = GetIncoming(addr);
+  }
+  if (!socket) {
+    LOG(INFO) << "Unknown destination for SendTo: " << addr.ToString();
+    return -1; // TODO: Set error_
+  }
+
+  //LOG(INFO) << "TCPPort::SendTo(" << size << ", " << addr.ToString() << ")";
+
+  int sent = socket->Send(data, size);
+  if (sent < 0)
+    error_ = socket->GetError();
+  return sent;
+}
+
+int TCPPort::SetOption(Socket::Option opt, int value) {
+  return socket_->SetOption(opt, value);
+}
+
+int TCPPort::GetError() {
+  assert(socket_);
+  return error_;
+}
+
+void TCPPort::OnAcceptEvent(AsyncSocket* socket) {
+  assert(socket == socket_);
+
+  Incoming incoming;
+  AsyncSocket * newsocket = static_cast<AsyncSocket *>(socket->Accept(&incoming.addr));
+  if (!newsocket) {
+    // TODO: Do something better like forwarding the error to the user.
+    LOG(INFO) << "accept: " << socket_->GetError() << " " <<  std::strerror(socket_->GetError());
+    return;
+  }
+  incoming.socket = new AsyncTCPSocket(newsocket);
+  incoming.socket->SignalReadPacket.connect(this, &TCPPort::OnReadPacket);
+
+  LOG(INFO) << "accepted incoming connection from " << incoming.addr.ToString();
+  incoming_.push_back(incoming);
+
+  // Prime a read event in case data is waiting
+  newsocket->SignalReadEvent(newsocket);
+}
+
+AsyncTCPSocket * TCPPort::GetIncoming(const SocketAddress& addr, bool remove) {
+  AsyncTCPSocket * socket = 0;
+  for (std::list<Incoming>::iterator it = incoming_.begin(); it != incoming_.end(); ++it) {
+    if (it->addr == addr) {
+      socket = it->socket;
+      if (remove)
+        incoming_.erase(it);
+      break;
+    }
+  }
+  return socket;
+}
+
+void TCPPort::OnReadPacket(const char* data, size_t size, const SocketAddress& remote_addr,
+      AsyncPacketSocket* socket) {
+  Port::OnReadPacket(data, size, remote_addr);
+}
+
+TCPConnection::TCPConnection(TCPPort* port, const Candidate& candidate, AsyncTCPSocket* socket)
+    : Connection(port, 0, candidate), socket_(socket), error_(0) {
+  bool outgoing = (socket_ == 0);
+  if (outgoing) {
+    socket_ = static_cast<AsyncTCPSocket *>(port->CreatePacketSocket(
+                (candidate.protocol() == "ssltcp") ? PROTO_SSLTCP : PROTO_TCP));
+  }
+  socket_->SignalReadPacket.connect(this, &TCPConnection::OnReadPacket);
+  socket_->SignalClose.connect(this, &TCPConnection::OnClose);
+  if (outgoing) {
+    connected_ = false;
+    socket_->SignalConnect.connect(this, &TCPConnection::OnConnect);
+    socket_->Connect(candidate.address());
+    LOG(INFO) << "Connecting to " << candidate.address().ToString();
+  }
+}
+
+TCPConnection::~TCPConnection() {
+}
+
+int TCPConnection::Send(const void* data, size_t size) {
+  if (write_state() != STATE_WRITABLE)
+    return 0;
+
+  int sent = socket_->Send(data, size);
+  if (sent < 0) {
+    error_ = socket_->GetError();
+  } else {
+    sent_total_bytes_ += sent;
+  }
+  return sent;
+}
+
+int TCPConnection::GetError() {
+  return error_;
+}
+
+TCPPort* TCPConnection::tcpport() {
+  return static_cast<TCPPort*>(port_);
+}
+
+void TCPConnection::OnConnect(AsyncTCPSocket* socket) {
+  assert(socket == socket_);
+  LOG(INFO) << "tcp connected to " << socket->GetRemoteAddress().ToString();
+  set_connected(true);
+}
+
+void TCPConnection::OnClose(AsyncTCPSocket* socket, int error) {
+  assert(socket == socket_);
+  LOG(INFO) << "tcp closed with error: " << error;
+  set_connected(false);
+}
+
+void TCPConnection::OnReadPacket(const char* data, size_t size, const SocketAddress& remote_addr,
+      AsyncPacketSocket* socket) {
+  assert(socket == socket_);
+  Connection::OnReadPacket(data, size);
+}
+
+} // namespace cricket
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/tcpport.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/tcpport.h
new file mode 100644
index 00000000..f6a9beb7
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/tcpport.h
@@ -0,0 +1,116 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __TCPPORT_H__
+#define __TCPPORT_H__
+
+#include <list>
+#include "talk/base/asynctcpsocket.h"
+#include "talk/p2p/base/port.h"
+
+namespace cricket {
+
+class TCPConnection;
+
+extern const std::string LOCAL_PORT_TYPE; // type of TCP ports
+
+// Communicates using a local TCP port.
+//
+// This class is designed to allow subclasses to take advantage of the
+// connection management provided by this class.  A subclass should take of all
+// packet sending and preparation, but when a packet is received, it should
+// call this TCPPort::OnReadPacket (3 arg) to dispatch to a connection.
+class TCPPort : public Port {
+public:
+  TCPPort(Thread* thread, SocketFactory* factory, Network* network,
+          const SocketAddress& address);
+  virtual ~TCPPort();
+
+  virtual Connection* CreateConnection(const Candidate& address, CandidateOrigin origin);
+
+  virtual void PrepareAddress();
+
+  virtual int SetOption(Socket::Option opt, int value);
+  virtual int GetError();
+
+protected:
+  // Handles sending using the local TCP socket.
+  virtual int SendTo(const void* data, size_t size, const SocketAddress& addr, bool payload);
+
+  // Creates TCPConnection for incoming sockets
+  void OnAcceptEvent(AsyncSocket* socket);
+
+  AsyncSocket* socket() { return socket_; }
+
+private:
+  bool incoming_only_;
+  AsyncSocket* socket_;
+  int error_;
+
+  struct Incoming {
+    SocketAddress addr;
+    AsyncTCPSocket * socket;
+  };
+  std::list<Incoming> incoming_;
+
+  AsyncTCPSocket * GetIncoming(const SocketAddress& addr, bool remove = false);
+
+  // Receives packet signal from the local TCP Socket.
+  void OnReadPacket(const char* data, size_t size, const SocketAddress& remote_addr,
+      AsyncPacketSocket* socket);
+
+  friend class TCPConnection;
+};
+
+class TCPConnection : public Connection {
+public:
+  // Connection is outgoing unless socket is specified
+  TCPConnection(TCPPort* port, const Candidate& candidate, AsyncTCPSocket* socket = 0);
+  virtual ~TCPConnection();
+
+  virtual int Send(const void* data, size_t size);
+  virtual int GetError();
+
+  AsyncTCPSocket * socket() { return socket_; }
+
+private:
+  TCPPort* tcpport();
+  AsyncTCPSocket* socket_;
+  bool connected_;
+  int error_;
+
+  void OnConnect(AsyncTCPSocket* socket);
+  void OnClose(AsyncTCPSocket* socket, int error);
+  void OnReadPacket(const char* data, size_t size, const SocketAddress& remote_addr,
+      AsyncPacketSocket* socket);
+
+  friend class TCPPort;
+};
+
+} // namespace cricket
+
+#endif // __TCPPORT_H__
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/udpport.cc b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/udpport.cc
new file mode 100644
index 00000000..fabbb25b
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/udpport.cc
@@ -0,0 +1,117 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if defined(_MSC_VER) && _MSC_VER < 1300
+#pragma warning(disable:4786)
+#endif
+#include "talk/base/logging.h"
+#include "talk/p2p/base/udpport.h"
+#include <iostream>
+#include <cassert>
+
+#if defined(_MSC_VER) && _MSC_VER < 1300
+namespace std {
+  using ::strerror;
+}
+#endif
+
+#ifdef POSIX
+extern "C" {
+#include <errno.h>
+}
+#endif // POSIX
+
+namespace cricket {
+
+const std::string LOCAL_PORT_TYPE("local");
+
+UDPPort::UDPPort(Thread* thread, SocketFactory* factory, Network* network,
+                 const SocketAddress& address)
+    : Port(thread, LOCAL_PORT_TYPE, factory, network), error_(0) {
+  socket_ = CreatePacketSocket(PROTO_UDP);
+  socket_->SignalReadPacket.connect(this, &UDPPort::OnReadPacketSlot);
+  if (socket_->Bind(address) < 0)
+    PLOG(LERROR, socket_->GetError()) << "bind";
+}
+
+UDPPort::UDPPort(Thread* thread, const std::string &type,
+                 SocketFactory* factory, Network* network)
+  : Port(thread, type, factory, network), socket_(0), error_(0) {
+}
+
+UDPPort::~UDPPort() {
+  delete socket_;
+}
+
+void UDPPort::PrepareAddress() {
+  assert(socket_);
+  add_address(socket_->GetLocalAddress(), "udp");
+}
+
+Connection* UDPPort::CreateConnection(const Candidate& address, CandidateOrigin origin) {
+  if (address.protocol() != "udp")
+    return 0;
+
+  Connection * conn = new ProxyConnection(this, 0, address);
+  AddConnection(conn);
+  return conn;
+}
+
+int UDPPort::SendTo(const void* data, size_t size, const SocketAddress& addr, bool payload) {
+  assert(socket_);
+  int sent = socket_->SendTo(data, size, addr);
+  if (sent < 0)
+    error_ = socket_->GetError();
+  return sent;
+}
+
+int UDPPort::SetOption(Socket::Option opt, int value) {
+  return socket_->SetOption(opt, value);
+}
+
+int UDPPort::GetError() {
+  assert(socket_);
+  return error_;
+}
+
+void UDPPort::OnReadPacketSlot(
+    const char* data, size_t size, const SocketAddress& remote_addr,
+    AsyncPacketSocket* socket) {
+  assert(socket == socket_);
+  OnReadPacket(data, size, remote_addr);
+}
+
+void UDPPort::OnReadPacket(
+    const char* data, size_t size, const SocketAddress& remote_addr) {
+  if (Connection* conn = GetConnection(remote_addr)) {
+    conn->OnReadPacket(data, size);
+  } else {
+    Port::OnReadPacket(data, size, remote_addr);
+  }
+}
+
+} // namespace cricket
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/udpport.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/udpport.h
new file mode 100644
index 00000000..4bcd113e
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/base/udpport.h
@@ -0,0 +1,81 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __UDPPORT_H__
+#define __UDPPORT_H__
+
+#include "talk/base/asyncudpsocket.h"
+#include "talk/p2p/base/port.h"
+
+namespace cricket {
+
+extern const std::string LOCAL_PORT_TYPE; // type of UDP ports
+
+// Communicates using a local UDP port.
+//
+// This class is designed to allow subclasses to take advantage of the
+// connection management provided by this class.  A subclass should take of all
+// packet sending and preparation, but when a packet is received, it should
+// call this UDPPort::OnReadPacket (3 arg) to dispatch to a connection.
+class UDPPort : public Port {
+public:
+  UDPPort(Thread* thread, SocketFactory* factory, Network* network,
+          const SocketAddress& address);
+  virtual ~UDPPort();
+
+  virtual void PrepareAddress();
+  virtual Connection* CreateConnection(const Candidate& address, CandidateOrigin origin);
+
+  virtual int SetOption(Socket::Option opt, int value);
+  virtual int GetError();
+
+protected:
+  UDPPort(Thread* thread, const std::string &type, SocketFactory* factory,
+          Network* network);
+
+  // Handles sending using the local UDP socket.
+  virtual int SendTo(const void* data, size_t size, const SocketAddress& addr, bool payload);
+
+  // Dispatches the given packet to the port or connection as appropriate.
+  void OnReadPacket(
+      const char* data, size_t size, const SocketAddress& remote_addr);
+
+  AsyncPacketSocket* socket() { return socket_; }
+
+private:
+  AsyncPacketSocket* socket_;
+  int error_;
+
+  // Receives packet signal from the local UDP Socket.
+  void OnReadPacketSlot(
+      const char* data, size_t size, const SocketAddress& remote_addr,
+      AsyncPacketSocket* socket);
+};
+
+} // namespace cricket
+
+#endif // __UDPPORT_H__
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/Makefile.am b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/Makefile.am
new file mode 100644
index 00000000..2bdd95ff
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/Makefile.am
@@ -0,0 +1,11 @@
+libcricketp2pclient_la_SOURCES = sessionclient.cc \
+				 basicportallocator.cc \
+				 socketmonitor.cc
+
+noinst_HEADERS =                 basicportallocator.h \
+				 sessionclient.h \
+				 socketmonitor.h 
+
+AM_CPPFLAGS = -I$(srcdir)/../../.. -DLINUX -DPOSIX -DINTERNAL_BUILD
+
+noinst_LTLIBRARIES = libcricketp2pclient.la
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/basicportallocator.cc b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/basicportallocator.cc
new file mode 100644
index 00000000..5192595c
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/basicportallocator.cc
@@ -0,0 +1,667 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if defined(_MSC_VER) && _MSC_VER < 1300
+#pragma warning(disable:4786)
+#endif
+#include "talk/base/host.h"
+#include "talk/base/logging.h"
+#include "talk/p2p/client/basicportallocator.h"
+#include "talk/p2p/base/port.h"
+#include "talk/p2p/base/udpport.h"
+#include "talk/p2p/base/tcpport.h"
+#include "talk/p2p/base/stunport.h"
+#include "talk/p2p/base/relayport.h"
+#include "talk/p2p/base/helpers.h"
+#include <cassert>
+
+namespace {
+
+const uint32 MSG_CONFIG_START = 1;
+const uint32 MSG_CONFIG_READY = 2;
+const uint32 MSG_ALLOCATE = 3;
+const uint32 MSG_ALLOCATION_PHASE = 4;
+const uint32 MSG_SHAKE = 5;
+
+const uint32 ALLOCATE_DELAY = 250;
+const uint32 ALLOCATION_STEP_DELAY = 1 * 1000;
+
+const int PHASE_UDP = 0;
+const int PHASE_RELAY = 1;
+const int PHASE_TCP = 2;
+const int PHASE_SSLTCP = 3;
+const int kNumPhases = 4;
+
+const float PREF_LOCAL_UDP = 1.0f;
+const float PREF_LOCAL_STUN = 0.9f;
+const float PREF_LOCAL_TCP = 0.8f;
+const float PREF_RELAY = 0.5f;
+
+const float RELAY_PRIMARY_PREF_MODIFIER = 0.0f; // modifiers of the above constants
+const float RELAY_BACKUP_PREF_MODIFIER = -0.2f;
+
+
+// Returns the phase in which a given local candidate (or rather, the port that
+// gave rise to that local candidate) would have been created.
+int LocalCandidateToPhase(const cricket::Candidate& candidate) {
+  cricket::ProtocolType proto;
+  bool result = cricket::StringToProto(candidate.protocol().c_str(), proto);
+  if (result) {
+    if (candidate.type() == cricket::LOCAL_PORT_TYPE) {
+      switch (proto) {
+      case cricket::PROTO_UDP: return PHASE_UDP;
+      case cricket::PROTO_TCP: return PHASE_TCP;
+      default: assert(false);
+      }
+    } else if (candidate.type() == cricket::STUN_PORT_TYPE) {
+      return PHASE_UDP;
+    } else if (candidate.type() == cricket::RELAY_PORT_TYPE) {
+      switch (proto) {
+      case cricket::PROTO_UDP: return PHASE_RELAY;
+      case cricket::PROTO_TCP: return PHASE_TCP;
+      case cricket::PROTO_SSLTCP: return PHASE_SSLTCP;
+      default: assert(false);
+      }
+    } else {
+      assert(false);
+    }
+  } else {
+    assert(false);
+  }
+  return PHASE_UDP; // reached only with assert failure
+}
+
+const int SHAKE_MIN_DELAY = 45 * 1000; // 45 seconds
+const int SHAKE_MAX_DELAY = 90 * 1000; // 90 seconds
+
+int ShakeDelay() {
+  int range = SHAKE_MAX_DELAY - SHAKE_MIN_DELAY + 1;
+  return SHAKE_MIN_DELAY + cricket::CreateRandomId() % range;
+}
+
+}
+
+namespace cricket {
+
+// Performs the allocation of ports, in a sequenced (timed) manner, for a given
+// network and IP address.
+class AllocationSequence: public MessageHandler {
+public:
+  AllocationSequence(BasicPortAllocatorSession* session,
+                     Network* network,
+                     PortConfiguration* config);
+  ~AllocationSequence();
+
+  // Determines whether this sequence is operating on an equivalent network
+  // setup to the one given.
+  bool IsEquivalent(Network* network);
+
+  // Starts and stops the sequence.  When started, it will continue allocating
+  // new ports on its own timed schedule.
+  void Start();
+  void Stop();
+
+  // MessageHandler:
+  void OnMessage(Message* msg);
+
+  void EnableProtocol(ProtocolType proto);
+  bool ProtocolEnabled(ProtocolType proto) const;
+
+private:
+  BasicPortAllocatorSession* session_;
+  Network* network_;
+  uint32 ip_;
+  PortConfiguration* config_;
+  bool running_;
+  int step_;
+  int step_of_phase_[kNumPhases];
+
+  typedef std::vector<ProtocolType> ProtocolList;
+  ProtocolList protocols_;
+
+  void CreateUDPPorts();
+  void CreateTCPPorts();
+  void CreateStunPorts();
+  void CreateRelayPorts();
+};
+
+
+// BasicPortAllocator
+
+BasicPortAllocator::BasicPortAllocator(NetworkManager* network_manager)
+  : network_manager_(network_manager), best_writable_phase_(-1), stun_address_(NULL), relay_address_(NULL) {
+}
+
+BasicPortAllocator::BasicPortAllocator(NetworkManager* network_manager, SocketAddress* stun_address, SocketAddress *relay_address)
+  : network_manager_(network_manager), best_writable_phase_(-1), stun_address_(stun_address), relay_address_(relay_address) {
+}
+
+BasicPortAllocator::~BasicPortAllocator() {
+}
+
+int BasicPortAllocator::best_writable_phase() const {
+  // If we are configured with an HTTP proxy, the best bet is to use the relay
+  if ((best_writable_phase_ == -1)
+      && ((proxy().type == PROXY_HTTPS) || (proxy().type == PROXY_UNKNOWN))) {
+    return PHASE_RELAY;
+  }
+  return best_writable_phase_;
+}
+
+PortAllocatorSession *BasicPortAllocator::CreateSession(const std::string &name) {
+  return new BasicPortAllocatorSession(this, name, stun_address_, relay_address_);
+}
+
+void BasicPortAllocator::AddWritablePhase(int phase) {
+  if ((best_writable_phase_ == -1) || (phase < best_writable_phase_))
+    best_writable_phase_ = phase;
+}
+
+// BasicPortAllocatorSession
+
+BasicPortAllocatorSession::BasicPortAllocatorSession(
+    BasicPortAllocator *allocator,
+    const std::string &name)
+  : allocator_(allocator), name_(name), network_thread_(NULL),
+    config_thread_(NULL), allocation_started_(false), running_(false),
+    stun_address_(NULL), relay_address_(NULL) {
+}
+
+BasicPortAllocatorSession::BasicPortAllocatorSession(
+    BasicPortAllocator *allocator,
+    const std::string &name,
+    SocketAddress *stun_address,
+    SocketAddress *relay_address)
+  : allocator_(allocator), name_(name), network_thread_(NULL),
+    config_thread_(NULL), allocation_started_(false), running_(false),
+    stun_address_(stun_address), relay_address_(relay_address) {
+}
+
+BasicPortAllocatorSession::~BasicPortAllocatorSession() {
+  if (config_thread_ != NULL)
+    config_thread_->Clear(this);
+  if (network_thread_ != NULL)
+    network_thread_->Clear(this);
+
+  std::vector<PortData>::iterator it;
+  for (it = ports_.begin(); it != ports_.end(); it++)
+    delete it->port;
+
+  for (uint32 i = 0; i < configs_.size(); ++i)
+    delete configs_[i];
+
+  for (uint32 i = 0; i < sequences_.size(); ++i)
+    delete sequences_[i];
+}
+
+void BasicPortAllocatorSession::GetInitialPorts() {
+  network_thread_ = Thread::Current();
+  if (!config_thread_)
+    config_thread_ = network_thread_;
+
+  config_thread_->Post(this, MSG_CONFIG_START);
+
+  if (allocator()->flags() & PORTALLOCATOR_ENABLE_SHAKER)
+    network_thread_->PostDelayed(ShakeDelay(), this, MSG_SHAKE);
+}
+
+void BasicPortAllocatorSession::StartGetAllPorts() {
+  assert(Thread::Current() == network_thread_);
+  running_ = true;
+  if (allocation_started_)
+    network_thread_->PostDelayed(ALLOCATE_DELAY, this, MSG_ALLOCATE);
+  for (uint32 i = 0; i < sequences_.size(); ++i)
+    sequences_[i]->Start();
+  for (size_t i = 0; i < ports_.size(); ++i)
+    ports_[i].port->Start();
+}
+
+void BasicPortAllocatorSession::StopGetAllPorts() {
+  assert(Thread::Current() == network_thread_);
+  running_ = false;
+  network_thread_->Clear(this, MSG_ALLOCATE);
+  for (uint32 i = 0; i < sequences_.size(); ++i)
+    sequences_[i]->Stop();
+}
+
+void BasicPortAllocatorSession::OnMessage(Message *message) {
+  switch (message->message_id) {
+  case MSG_CONFIG_START:
+    assert(Thread::Current() == config_thread_);
+    GetPortConfigurations();
+    break;
+
+  case MSG_CONFIG_READY:
+    assert(Thread::Current() == network_thread_);
+    OnConfigReady(static_cast<PortConfiguration*>(message->pdata));
+    break;
+
+  case MSG_ALLOCATE:
+    assert(Thread::Current() == network_thread_);
+    OnAllocate();
+    break;
+
+  case MSG_SHAKE:
+    assert(Thread::Current() == network_thread_);
+    OnShake();
+    break;
+
+  default:
+    assert(false);
+  }
+}
+
+void BasicPortAllocatorSession::GetPortConfigurations() {
+  PortConfiguration* config = NULL;
+  if (stun_address_ != NULL)
+    config = new PortConfiguration(*stun_address_,
+				   CreateRandomString(16),
+				   CreateRandomString(16),
+				   "");
+  PortConfiguration::PortList ports;
+  if (relay_address_ != NULL) {
+    ports.push_back(ProtocolAddress(*relay_address_, PROTO_UDP));
+    config->AddRelay(ports, RELAY_PRIMARY_PREF_MODIFIER);
+  }
+
+  ConfigReady(config);
+}
+
+void BasicPortAllocatorSession::ConfigReady(PortConfiguration* config) {
+  network_thread_->Post(this, MSG_CONFIG_READY, config);
+}
+
+// Adds a configuration to the list.
+void BasicPortAllocatorSession::OnConfigReady(PortConfiguration* config) {
+  if (config)
+    configs_.push_back(config);
+
+  AllocatePorts();
+}
+
+void BasicPortAllocatorSession::AllocatePorts() {
+  assert(Thread::Current() == network_thread_);
+
+  if (allocator_->proxy().type != PROXY_NONE)
+    Port::set_proxy(allocator_->proxy());
+
+  network_thread_->Post(this, MSG_ALLOCATE);
+}
+
+// For each network, see if we have a sequence that covers it already.  If not,
+// create a new sequence to create the appropriate ports.
+void BasicPortAllocatorSession::OnAllocate() {
+  std::vector<Network*> networks;
+  allocator_->network_manager()->GetNetworks(networks);
+
+  for (uint32 i = 0; i < networks.size(); ++i) {
+    if (HasEquivalentSequence(networks[i]))
+      continue;
+
+    PortConfiguration* config = NULL;
+    if (configs_.size() > 0)
+      config = configs_.back();
+
+    AllocationSequence* sequence =
+        new AllocationSequence(this, networks[i], config);
+    if (running_)
+      sequence->Start();
+
+    sequences_.push_back(sequence);
+  }
+
+  allocation_started_ = true;
+  if (running_)
+    network_thread_->PostDelayed(ALLOCATE_DELAY, this, MSG_ALLOCATE);
+}
+
+bool BasicPortAllocatorSession::HasEquivalentSequence(Network* network) {
+  for (uint32 i = 0; i < sequences_.size(); ++i)
+    if (sequences_[i]->IsEquivalent(network))
+      return true;
+  return false;
+}
+
+void BasicPortAllocatorSession::AddAllocatedPort(Port* port,
+                                                 AllocationSequence * seq,
+                                                 float pref,
+                                                 bool prepare_address) {
+  if (!port)
+    return;
+
+  port->set_name(name_);
+  port->set_preference(pref);
+  port->set_generation(generation());
+  PortData data;
+  data.port = port;
+  data.sequence = seq;
+  data.ready = false;
+  ports_.push_back(data);
+  port->SignalAddressReady.connect(this, &BasicPortAllocatorSession::OnAddressReady);
+  port->SignalConnectionCreated.connect(this, &BasicPortAllocatorSession::OnConnectionCreated);
+  port->SignalDestroyed.connect(this, &BasicPortAllocatorSession::OnPortDestroyed);
+  if (prepare_address)
+    port->PrepareAddress();
+  if (running_)
+    port->Start();
+}
+
+void BasicPortAllocatorSession::OnAddressReady(Port *port) {
+  assert(Thread::Current() == network_thread_);
+  std::vector<PortData>::iterator it = std::find(ports_.begin(), ports_.end(), port);
+  assert(it != ports_.end());
+  assert(!it->ready);
+  it->ready = true;
+  SignalPortReady(this, port);
+
+  // Only accumulate the candidates whose protocol has been enabled
+  std::vector<Candidate> candidates;
+  const std::vector<Candidate>& potentials = port->candidates();
+  for (size_t i=0; i<potentials.size(); ++i) {
+    ProtocolType pvalue;
+    if (!StringToProto(potentials[i].protocol().c_str(), pvalue))
+      continue;
+    if (it->sequence->ProtocolEnabled(pvalue)) {
+      candidates.push_back(potentials[i]);
+    }
+  }
+  if (!candidates.empty()) {
+    SignalCandidatesReady(this, candidates);
+  }
+}
+
+void BasicPortAllocatorSession::OnProtocolEnabled(AllocationSequence * seq, ProtocolType proto) {
+  std::vector<Candidate> candidates;
+  for (std::vector<PortData>::iterator it = ports_.begin(); it != ports_.end(); ++it) {
+    if (!it->ready || (it->sequence != seq))
+      continue;
+
+    const std::vector<Candidate>& potentials = it->port->candidates();
+    for (size_t i=0; i<potentials.size(); ++i) {
+      ProtocolType pvalue;
+      if (!StringToProto(potentials[i].protocol().c_str(), pvalue))
+        continue;
+      if (pvalue == proto) {
+        candidates.push_back(potentials[i]);
+      }
+    }
+  }
+  if (!candidates.empty()) {
+    SignalCandidatesReady(this, candidates);
+  }
+}
+
+void BasicPortAllocatorSession::OnPortDestroyed(Port* port) {
+  assert(Thread::Current() == network_thread_);
+  std::vector<PortData>::iterator iter =
+      find(ports_.begin(), ports_.end(), port);
+  assert(iter != ports_.end());
+  ports_.erase(iter);
+
+  LOG(INFO) << "Removed port from allocator: "
+            << static_cast<int>(ports_.size()) << " remaining";
+}
+
+void BasicPortAllocatorSession::OnConnectionCreated(Port* port, Connection* conn) {
+  conn->SignalStateChange.connect(this, &BasicPortAllocatorSession::OnConnectionStateChange);
+}
+
+void BasicPortAllocatorSession::OnConnectionStateChange(Connection* conn) {
+  if (conn->write_state() == Connection::STATE_WRITABLE)
+    allocator_->AddWritablePhase(LocalCandidateToPhase(conn->local_candidate()));
+}
+
+void BasicPortAllocatorSession::OnShake() {
+  LOG(INFO) << ">>>>> SHAKE <<<<< >>>>> SHAKE <<<<< >>>>> SHAKE <<<<<";
+
+  std::vector<Port*> ports;
+  std::vector<Connection*> connections;
+
+  for (size_t i = 0; i < ports_.size(); ++i) {
+    if (ports_[i].ready)
+      ports.push_back(ports_[i].port);
+  }
+
+  for (size_t i = 0; i < ports.size(); ++i) {
+    Port::AddressMap::const_iterator iter;
+    for (iter = ports[i]->connections().begin();
+         iter != ports[i]->connections().end();
+         ++iter) {
+      connections.push_back(iter->second);
+    }
+  }
+
+  LOG(INFO) << ">>>>> Destroying " << (int)ports.size() << " ports and "
+            << (int)connections.size() << " connections";
+
+  for (size_t i = 0; i < connections.size(); ++i)
+    connections[i]->Destroy();
+
+  if (running_ || (ports.size() > 0) || (connections.size() > 0))
+    network_thread_->PostDelayed(ShakeDelay(), this, MSG_SHAKE);
+}
+
+// AllocationSequence
+
+AllocationSequence::AllocationSequence(BasicPortAllocatorSession* session,
+                                       Network* network,
+                                       PortConfiguration* config)
+  : session_(session), network_(network), ip_(network->ip()), config_(config),
+    running_(false), step_(0) {
+
+  // All of the phases up until the best-writable phase so far run in step 0.
+  // The other phases follow sequentially in the steps after that.  If there is
+  // no best-writable so far, then only phase 0 occurs in step 0.
+  int last_phase_in_step_zero =
+      _max(0, session->allocator()->best_writable_phase());
+  for (int phase = 0; phase < kNumPhases; ++phase)
+    step_of_phase_[phase] = _max(0, phase - last_phase_in_step_zero);
+
+  // Immediately perform phase 0.
+  OnMessage(NULL);
+}
+
+AllocationSequence::~AllocationSequence() {
+  session_->network_thread()->Clear(this);
+}
+
+bool AllocationSequence::IsEquivalent(Network* network) {
+  return (network == network_) && (ip_ == network->ip());
+}
+
+void AllocationSequence::Start() {
+  running_ = true;
+  session_->network_thread()->PostDelayed(ALLOCATION_STEP_DELAY,
+                                          this,
+                                          MSG_ALLOCATION_PHASE);
+}
+
+void AllocationSequence::Stop() {
+  running_ = false;
+  session_->network_thread()->Clear(this, MSG_ALLOCATION_PHASE);
+}
+
+void AllocationSequence::OnMessage(Message* msg) {
+  assert(Thread::Current() == session_->network_thread());
+  if (msg)
+    assert(msg->message_id == MSG_ALLOCATION_PHASE);
+
+  // Perform all of the phases in the current step.
+  for (int phase = 0; phase < kNumPhases; phase++) {
+    if (step_of_phase_[phase] != step_)
+      continue;
+
+    switch (phase) {
+    case PHASE_UDP:
+      LOG(INFO) << "Phase=UDP Step=" << step_;
+      CreateUDPPorts();
+      CreateStunPorts();
+      EnableProtocol(PROTO_UDP);
+      break;
+
+    case PHASE_RELAY:
+      LOG(INFO) << "Phase=RELAY Step=" << step_;
+      CreateRelayPorts();
+      break;
+
+    case PHASE_TCP:
+      LOG(INFO) << "Phase=TCP Step=" << step_;
+      CreateTCPPorts();
+      EnableProtocol(PROTO_TCP);
+      break;
+
+    case PHASE_SSLTCP:
+      LOG(INFO) << "Phase=SSLTCP Step=" << step_;
+      EnableProtocol(PROTO_SSLTCP);
+      break;
+
+    default:
+      // Nothing else we can do.
+      return;
+    }
+  }
+
+  // TODO: use different delays for each stage
+  step_ += 1;
+  if (running_) {
+    session_->network_thread()->PostDelayed(ALLOCATION_STEP_DELAY,
+                                            this,
+                                            MSG_ALLOCATION_PHASE);
+  }
+}
+
+void AllocationSequence::EnableProtocol(ProtocolType proto) {
+  if (!ProtocolEnabled(proto)) {
+    protocols_.push_back(proto);
+    session_->OnProtocolEnabled(this, proto);
+  }
+}
+
+bool AllocationSequence::ProtocolEnabled(ProtocolType proto) const {
+  for (ProtocolList::const_iterator it = protocols_.begin(); it != protocols_.end(); ++it) {
+    if (*it == proto)
+      return true;
+  }
+  return false;
+}
+
+void AllocationSequence::CreateUDPPorts() {
+  if (session_->allocator()->flags() & PORTALLOCATOR_DISABLE_UDP)
+    return;
+
+  Port* port = new UDPPort(session_->network_thread(), NULL, network_,
+                           SocketAddress(ip_, 0));
+  session_->AddAllocatedPort(port, this, PREF_LOCAL_UDP);
+}
+
+void AllocationSequence::CreateTCPPorts() {
+  if (session_->allocator()->flags() & PORTALLOCATOR_DISABLE_TCP)
+    return;
+
+  Port* port = new TCPPort(session_->network_thread(), NULL, network_,
+                           SocketAddress(ip_, 0));
+  session_->AddAllocatedPort(port, this, PREF_LOCAL_TCP); 
+}
+
+void AllocationSequence::CreateStunPorts() {
+  if (session_->allocator()->flags() & PORTALLOCATOR_DISABLE_STUN)
+    return;
+
+  if (!config_ || config_->stun_address.IsAny())
+    return;
+
+  Port* port = new StunPort(session_->network_thread(), NULL, network_,
+                            SocketAddress(ip_, 0), config_->stun_address);
+  session_->AddAllocatedPort(port, this, PREF_LOCAL_STUN); 
+}
+
+void AllocationSequence::CreateRelayPorts() {
+  if (session_->allocator()->flags() & PORTALLOCATOR_DISABLE_RELAY)
+    return;
+
+  if (!config_)
+    return;
+
+  PortConfiguration::RelayList::const_iterator relay;
+  for (relay = config_->relays.begin();
+       relay != config_->relays.end();
+       ++relay) {
+
+    RelayPort *port = new RelayPort(session_->network_thread(), NULL, network_,
+                                    SocketAddress(ip_, 0),
+                                    config_->username, config_->password,
+                                    config_->magic_cookie);
+    // Note: We must add the allocated port before we add addresses because
+    //       the latter will create candidates that need name and preference
+    //       settings.  However, we also can't prepare the address (normally
+    //       done by AddAllocatedPort) until we have these addresses.  So we
+    //       wait to do that until below.
+    session_->AddAllocatedPort(port, this, PREF_RELAY + relay->pref_modifier, false);
+
+    // Add the addresses of this protocol.
+    PortConfiguration::PortList::const_iterator relay_port;
+    for (relay_port = relay->ports.begin();
+          relay_port != relay->ports.end();
+          ++relay_port) {
+      port->AddServerAddress(*relay_port);
+      port->AddExternalAddress(*relay_port);
+    }
+
+    // Start fetching an address for this port.
+    port->PrepareAddress();
+  }
+}
+
+// PortConfiguration
+
+PortConfiguration::PortConfiguration(const SocketAddress& sa,
+                                     const std::string& un,
+                                     const std::string& pw,
+                                     const std::string& mc)
+  : stun_address(sa), username(un), password(pw), magic_cookie(mc) {
+}
+
+void PortConfiguration::AddRelay(const PortList& ports, float pref_modifier) {
+  RelayServer relay;
+  relay.ports = ports;
+  relay.pref_modifier = pref_modifier;
+  relays.push_back(relay);
+}
+
+bool PortConfiguration::SupportsProtocol(
+    const PortConfiguration::RelayServer& relay, ProtocolType type) {
+  PortConfiguration::PortList::const_iterator relay_port;
+  for (relay_port = relay.ports.begin();
+        relay_port != relay.ports.end();
+        ++relay_port) {
+    if (relay_port->proto == type)
+      return true;
+  }
+  return false;
+}
+
+} // namespace cricket
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/basicportallocator.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/basicportallocator.h
new file mode 100644
index 00000000..0f7b96b4
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/basicportallocator.h
@@ -0,0 +1,172 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _BASICPORTALLOCATOR_H_
+#define _BASICPORTALLOCATOR_H_
+
+#include "talk/base/thread.h"
+#include "talk/base/messagequeue.h"
+#include "talk/base/network.h"
+#include "talk/p2p/base/portallocator.h"
+#include <string>
+#include <vector>
+
+namespace cricket {
+
+class BasicPortAllocator: public PortAllocator {
+public:
+  BasicPortAllocator(NetworkManager* network_manager);
+  BasicPortAllocator(NetworkManager* network_manager, SocketAddress *stun_server, SocketAddress *relay_server);
+  virtual ~BasicPortAllocator();
+
+  NetworkManager* network_manager() { return network_manager_; }
+
+  // Returns the best (highest preference) phase that has produced a port that
+  // produced a writable connection.  If no writable connections have been
+  // produced, this returns -1.
+  int best_writable_phase() const;
+
+  virtual PortAllocatorSession *CreateSession(const std::string &name);
+
+  // Called whenever a connection becomes writable with the argument being the
+  // phase that the corresponding port was created in.
+  void AddWritablePhase(int phase);
+
+private:
+  NetworkManager* network_manager_;
+  SocketAddress* stun_address_;
+  SocketAddress* relay_address_;
+  int best_writable_phase_;
+};
+
+struct PortConfiguration;
+class AllocationSequence;
+
+class BasicPortAllocatorSession: public PortAllocatorSession, public MessageHandler {
+public:
+  BasicPortAllocatorSession(BasicPortAllocator *allocator,
+			    const std::string &name);
+  BasicPortAllocatorSession(BasicPortAllocator *allocator,
+                            const std::string &name,
+			    SocketAddress *stun_address,
+			    SocketAddress *relay_address);
+  ~BasicPortAllocatorSession();
+
+  BasicPortAllocator* allocator() { return allocator_; }
+  const std::string& name() const { return name_; }
+  Thread* network_thread() { return network_thread_; }
+
+  Thread* config_thread() { return config_thread_; }
+  void set_config_thread(Thread* thread) { config_thread_ = thread; }
+
+  virtual void GetInitialPorts();
+  virtual void StartGetAllPorts();
+  virtual void StopGetAllPorts();
+  virtual bool IsGettingAllPorts() { return running_; }
+
+protected:
+  // Starts the process of getting the port configurations.
+  virtual void GetPortConfigurations();
+
+  // Adds a port configuration that is now ready.  Once we have one for each
+  // network (or a timeout occurs), we will start allocating ports.
+  void ConfigReady(PortConfiguration* config);
+
+  // MessageHandler.  Can be overriden if message IDs do not conflict.
+  virtual void OnMessage(Message *message);
+
+private:
+  void OnConfigReady(PortConfiguration* config);
+  void OnConfigTimeout();
+  void AllocatePorts();
+  void OnAllocate();
+  bool HasEquivalentSequence(Network* network);
+  void AddAllocatedPort(Port* port, AllocationSequence * seq, float pref, bool prepare_address = true);
+  void OnAddressReady(Port *port);
+  void OnProtocolEnabled(AllocationSequence * seq, ProtocolType proto);
+  void OnPortDestroyed(Port* port);
+  void OnConnectionCreated(Port* port, Connection* conn);
+  void OnConnectionStateChange(Connection* conn);
+  void OnShake();
+
+  BasicPortAllocator *allocator_;
+  std::string name_;
+  Thread* network_thread_;
+  Thread* config_thread_;
+  bool configuration_done_;
+  bool allocation_started_;
+  bool running_; // set when StartGetAllPorts is called
+  std::vector<PortConfiguration*> configs_;
+  std::vector<AllocationSequence*> sequences_;
+  SocketAddress *stun_address_;
+  SocketAddress *relay_address_;
+
+  struct PortData {
+    Port * port;
+    AllocationSequence * sequence;
+    bool ready;
+
+    bool operator==(Port * rhs) const { return (port == rhs); }
+  };
+  std::vector<PortData> ports_;
+
+  friend class AllocationSequence;
+};
+
+// Records configuration information useful in creating ports.
+struct PortConfiguration: public MessageData {
+  SocketAddress stun_address;
+  std::string username;
+  std::string password;
+  std::string magic_cookie;
+
+  typedef std::vector<ProtocolAddress> PortList;
+  struct RelayServer {
+    PortList ports;
+    float pref_modifier; // added to the protocol modifier to get the
+                         // preference for this particular server
+  };
+
+  typedef std::vector<RelayServer> RelayList;
+  RelayList relays;
+
+  PortConfiguration(const SocketAddress& stun_address,
+                    const std::string& username,
+                    const std::string& password,
+                    const std::string& magic_cookie);
+
+  // Adds another relay server, with the given ports and modifier, to the list.
+  void AddRelay(const PortList& ports, float pref_modifier);
+
+  // Determines whether the given relay server supports the given protocol.
+  static bool SupportsProtocol(const PortConfiguration::RelayServer& relay,
+                               ProtocolType type);
+};
+
+} // namespace cricket
+
+#endif // _BASICPORTALLOCATOR_H_
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/sessionclient.cc b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/sessionclient.cc
new file mode 100644
index 00000000..09b38a52
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/sessionclient.cc
@@ -0,0 +1,545 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if defined(_MSC_VER) && _MSC_VER < 1300
+#pragma warning(disable:4786)
+#endif
+#include "talk/p2p/client/sessionclient.h"
+#include "talk/p2p/base/helpers.h"
+#include "talk/base/logging.h"
+#include "talk/xmllite/qname.h"
+#include "talk/xmpp/constants.h"
+#include "talk/xmllite/xmlprinter.h"
+#include <iostream>
+#undef SetPort
+
+namespace {
+
+// We only allow usernames to be this many characters or fewer.
+const size_t kMaxUsernameSize = 16;
+
+}
+
+namespace cricket {
+
+#if 0
+>>>>>>
+<iq from="..." to="..." type="set" id="27">
+  <session xmlns="http://www.google.com/session" type="initiate" id="Dr45JU8A34DF" initiator="...">
+    <description xmlns="http://www.whoever.com/whatever">
+      ...
+    </description>
+  </session>
+</iq>
+
+<<<<<<
+<iq from="..." to="..." type="result" id="27"/>
+
+>>>>>>
+<iq from="..." to="..." type="set" id="28">
+  <session xmlns="http://www.google.com/session" type="candidates" id="Dr45JU8A34DF" initiator="...">
+    <candidate name="rtp" address="X.X.X.X" port="NNN" username="asdf" password="asdf" preference="1.0" type="udp" network="bleh"/>
+    <candidate name="rtp" address="X.X.X.X" port="NNN" username="asdf" password="asdf" preference="1.0" type="udp" network="bleh"/>
+    <candidate name="rtp" address="X.X.X.X" port="NNN" username="asdf" password="asdf" preference="1.0" type="udp" network="bleh"/>
+  </session>
+</iq>>
+
+<<<<<<
+<iq from="..." to="..." type="result" id="28"/>
+
+#endif
+
+const std::string NS_GOOGLESESSION("http://www.google.com/session");
+const buzz::QName QN_GOOGLESESSION_SESSION(true, NS_GOOGLESESSION, "session");
+const buzz::QName QN_GOOGLESESSION_CANDIDATE(true, NS_GOOGLESESSION, "candidate");
+const buzz::QName QN_GOOGLESESSION_TARGET(true, NS_GOOGLESESSION, "target");
+const buzz::QName QN_GOOGLESESSION_COOKIE(true, NS_GOOGLESESSION, "cookie");
+const buzz::QName QN_GOOGLESESSION_REGARDING(true, NS_GOOGLESESSION, "regarding");
+
+const buzz::QName QN_TYPE(true, buzz::STR_EMPTY, "type");
+const buzz::QName QN_ID(true, buzz::STR_EMPTY, "id");
+const buzz::QName QN_INITIATOR(true, buzz::STR_EMPTY, "initiator");
+const buzz::QName QN_NAME(true, buzz::STR_EMPTY, "name");
+const buzz::QName QN_PORT(true, buzz::STR_EMPTY, "port");
+const buzz::QName QN_NETWORK(true, buzz::STR_EMPTY, "network");
+const buzz::QName QN_GENERATION(true, buzz::STR_EMPTY, "generation");
+const buzz::QName QN_ADDRESS(true, buzz::STR_EMPTY, "address");
+const buzz::QName QN_USERNAME(true, buzz::STR_EMPTY, "username");
+const buzz::QName QN_PASSWORD(true, buzz::STR_EMPTY, "password");
+const buzz::QName QN_PREFERENCE(true, buzz::STR_EMPTY, "preference");
+const buzz::QName QN_PROTOCOL(true, buzz::STR_EMPTY, "protocol");
+const buzz::QName QN_KEY(true, buzz::STR_EMPTY, "key");
+
+class XmlCookie: public SessionMessage::Cookie {
+public:
+  XmlCookie(const buzz::XmlElement* elem)
+    : elem_(new buzz::XmlElement(*elem)) {
+  }
+
+  virtual ~XmlCookie() {
+    delete elem_;
+  }
+
+  const buzz::XmlElement* elem() const { return elem_; }
+
+  virtual Cookie* Copy() {
+    return new XmlCookie(elem_);
+  }
+
+private:
+  buzz::XmlElement* elem_;
+};
+
+SessionClient::SessionClient(SessionManager *session_manager) {
+  session_manager_ = session_manager;
+  session_manager_->SignalSessionCreate.connect(this, &SessionClient::OnSessionCreateSlot);
+  session_manager_->SignalSessionDestroy.connect(this, &SessionClient::OnSessionDestroySlot);
+}
+
+SessionClient::~SessionClient() {
+}
+
+void SessionClient::OnSessionCreateSlot(Session *session, bool received_initiate) {
+  // Does this session belong to this session client?
+  if (session->name() == GetSessionDescriptionName()) {
+    session->SignalOutgoingMessage.connect(this, &SessionClient::OnOutgoingMessage);
+    OnSessionCreate(session, received_initiate);
+  }
+}
+
+void SessionClient::OnSessionDestroySlot(Session *session) {
+  if (session->name() == GetSessionDescriptionName()) {
+    session->SignalOutgoingMessage.disconnect(this);
+    OnSessionDestroy(session);
+  }
+}
+
+bool SessionClient::IsClientStanza(const buzz::XmlElement *stanza) {
+  // Is it a IQ set stanza?
+  if (stanza->Name() != buzz::QN_IQ)
+    return false;
+  if (stanza->Attr(buzz::QN_TYPE) != buzz::STR_SET)
+    return false;
+
+  // Make sure it has the right child element
+  const buzz::XmlElement* element
+    = stanza->FirstNamed(QN_GOOGLESESSION_SESSION);
+  if (element == NULL)
+    return false;
+
+  // Is it one of the allowed types?
+  std::string type;
+  if (element->HasAttr(QN_TYPE)) {
+    type = element->Attr(QN_TYPE);
+    if (type != "initiate" && type != "accept" && type != "modify" &&
+        type != "candidates" && type != "reject" && type != "redirect" &&
+        type != "terminate") {
+      return false;
+    }
+  }
+
+  // Does this client own the session description namespace?
+  buzz::QName qn_session_desc(GetSessionDescriptionName(), "description");
+  const buzz::XmlElement* description = element->FirstNamed(qn_session_desc);
+  if (type == "initiate" || type == "accept" || type == "modify") {
+    if (description == NULL)
+      return false;
+  } else {
+    if (description != NULL)
+      return false;
+  }
+
+  // It's good
+  return true;
+}
+
+void SessionClient::OnIncomingStanza(const buzz::XmlElement *stanza) {
+  SessionMessage message;
+  if (!ParseIncomingMessage(stanza, message))
+    return;
+
+  session_manager_->OnIncomingMessage(message);
+}
+
+void SessionClient::OnFailedSend(const buzz::XmlElement *original_stanza,
+                                 const buzz::XmlElement *failure_stanza) {
+  SessionMessage message;
+  if (!ParseIncomingMessage(original_stanza, message))
+    return;
+
+  // Note the from/to represents the *original* stanza and not the from/to
+  // on any return path
+  session_manager_->OnIncomingError(message);
+}
+
+bool SessionClient::ParseIncomingMessage(const buzz::XmlElement *stanza,
+                                         SessionMessage& message) {
+  // Parse stanza into SessionMessage
+  const buzz::XmlElement* element
+    = stanza->FirstNamed(QN_GOOGLESESSION_SESSION);
+
+  std::string type = element->Attr(QN_TYPE);
+  if (type == "initiate" || type == "accept" || type == "modify") {
+    ParseInitiateAcceptModify(stanza, message);
+  } else if (type == "candidates") {
+    ParseCandidates(stanza, message);
+  } else if (type == "reject" || type == "terminate") {
+    ParseRejectTerminate(stanza, message);
+  } else if (type == "redirect") {
+    ParseRedirect(stanza, message);
+  } else {
+    return false;
+  }
+
+  return true;
+}
+
+void SessionClient::ParseHeader(const buzz::XmlElement *stanza, SessionMessage &message) {
+  if (stanza->HasAttr(buzz::QN_FROM))
+    message.set_from(stanza->Attr(buzz::QN_FROM));
+  if (stanza->HasAttr(buzz::QN_TO))
+    message.set_to(stanza->Attr(buzz::QN_TO));
+
+  const buzz::XmlElement *element
+    = stanza->FirstNamed(QN_GOOGLESESSION_SESSION);
+  if (element->HasAttr(QN_ID))
+    message.session_id().set_id_str(element->Attr(QN_ID));
+
+  if (element->HasAttr(QN_INITIATOR))
+    message.session_id().set_initiator(element->Attr(QN_INITIATOR));
+
+  std::string type = element->Attr(QN_TYPE);
+  if (type == "initiate") {
+    message.set_type(SessionMessage::TYPE_INITIATE);
+  } else if (type == "accept") {
+    message.set_type(SessionMessage::TYPE_ACCEPT);
+  } else if (type == "modify") {
+    message.set_type(SessionMessage::TYPE_MODIFY);
+  } else if (type == "candidates") {
+    message.set_type(SessionMessage::TYPE_CANDIDATES);
+  } else if (type == "reject") {
+    message.set_type(SessionMessage::TYPE_REJECT);
+  } else if (type == "redirect") {
+    message.set_type(SessionMessage::TYPE_REDIRECT);
+  } else if (type == "terminate") {
+    message.set_type(SessionMessage::TYPE_TERMINATE);
+  } else {
+    assert(false);
+  }
+}
+
+void SessionClient::ParseInitiateAcceptModify(const buzz::XmlElement *stanza, SessionMessage &message) {
+  // Pull the standard header pieces out
+  ParseHeader(stanza, message);
+
+  // Parse session description
+  const buzz::XmlElement *session
+    = stanza->FirstNamed(QN_GOOGLESESSION_SESSION);
+  buzz::QName qn_session_desc(GetSessionDescriptionName(), "description");
+  const buzz::XmlElement* desc_elem = session->FirstNamed(qn_session_desc);
+  const SessionDescription *description = NULL;
+  if (desc_elem)
+    description = CreateSessionDescription(desc_elem);
+  message.set_name(GetSessionDescriptionName());
+  message.set_description(description);
+}
+
+void SessionClient::ParseCandidates(const buzz::XmlElement *stanza, SessionMessage &message) {
+  // Pull the standard header pieces out
+  ParseHeader(stanza, message);
+
+  // Parse candidates and session description
+  std::vector<Candidate> candidates;
+  const buzz::XmlElement *element
+    = stanza->FirstNamed(QN_GOOGLESESSION_SESSION);
+  const buzz::XmlElement *child = element->FirstElement();
+  while (child != NULL) {
+    if (child->Name() == QN_GOOGLESESSION_CANDIDATE) {
+      Candidate candidate;
+      if (ParseCandidate(child, &candidate))
+        candidates.push_back(candidate);
+    }
+    child = child->NextElement();
+  }
+  message.set_name(GetSessionDescriptionName());
+  message.set_candidates(candidates);
+}
+
+void SessionClient::ParseRejectTerminate(const buzz::XmlElement *stanza, SessionMessage &message) {
+  // Reject and terminate are very simple
+  ParseHeader(stanza, message);
+}
+
+bool SessionClient::ParseCandidate(const buzz::XmlElement *child,
+                                   Candidate* candidate) {
+  // Check for all of the required attributes.
+  if (!child->HasAttr(QN_NAME) ||
+      !child->HasAttr(QN_ADDRESS) ||
+      !child->HasAttr(QN_PORT) ||
+      !child->HasAttr(QN_USERNAME) ||
+      !child->HasAttr(QN_PREFERENCE) ||
+      !child->HasAttr(QN_PROTOCOL) ||
+      !child->HasAttr(QN_GENERATION)) {
+    LOG(LERROR) << "Candidate missing required attribute";
+    return false;
+  }
+
+  SocketAddress address;
+  address.SetIP(child->Attr(QN_ADDRESS));
+  std::istringstream ist(child->Attr(QN_PORT));
+  int port;
+  ist >> port;
+  address.SetPort(port);
+
+  if (address.IsAny()) {
+    LOG(LERROR) << "Candidate has address 0";
+    return false;
+  }
+
+  // Always disallow addresses that refer to the local host.
+  if (address.IsLocalIP()) {
+    LOG(LERROR) << "Candidate has local IP address";
+    return false;
+  }
+
+  // Disallow all ports below 1024, except for 80 and 443 on public addresses.
+  if (port < 1024) {
+    if ((port != 80) && (port != 443)) {
+      LOG(LERROR) << "Candidate has port below 1024, not 80 or 443";
+      return false;
+    }
+    if (address.IsPrivateIP()) {
+      LOG(LERROR) << "Candidate has port of 80 or 443 with private IP address";
+      return false;
+    }
+  }
+
+  candidate->set_name(child->Attr(QN_NAME));
+  candidate->set_address(address);
+  candidate->set_username(child->Attr(QN_USERNAME));
+  candidate->set_preference_str(child->Attr(QN_PREFERENCE));
+  candidate->set_protocol(child->Attr(QN_PROTOCOL));
+  candidate->set_generation_str(child->Attr(QN_GENERATION));
+
+  // Check that the username is not too long and does not use any bad chars.
+  if (candidate->username().size() > kMaxUsernameSize) {
+    LOG(LERROR) << "Candidate username is too long";
+    return false;
+  }
+  if (!IsBase64Encoded(candidate->username())) {
+    LOG(LERROR) << "Candidate username has non-base64 encoded characters";
+    return false;
+  }
+
+  // Look for the non-required attributes.
+  if (child->HasAttr(QN_PASSWORD))
+    candidate->set_password(child->Attr(QN_PASSWORD));
+  if (child->HasAttr(QN_TYPE))
+    candidate->set_type(child->Attr(QN_TYPE));
+  if (child->HasAttr(QN_NETWORK))
+    candidate->set_network_name(child->Attr(QN_NETWORK));
+
+  return true;
+}
+
+void SessionClient::ParseRedirect(const buzz::XmlElement *stanza, SessionMessage &message) {
+  // Pull the standard header pieces out
+  ParseHeader(stanza, message);
+  const buzz::XmlElement *session = stanza->FirstNamed(QN_GOOGLESESSION_SESSION);
+
+  // Parse the target and cookie.
+
+  const buzz::XmlElement* target = session->FirstNamed(QN_GOOGLESESSION_TARGET);
+  if (target)
+    message.set_redirect_target(target->Attr(QN_NAME));
+
+  const buzz::XmlElement* cookie = session->FirstNamed(QN_GOOGLESESSION_COOKIE);
+  if (cookie)
+    message.set_redirect_cookie(new XmlCookie(cookie));
+}
+
+void SessionClient::OnOutgoingMessage(Session *session, const SessionMessage &message) {
+  // Translate the message into an XMPP stanza
+
+  buzz::XmlElement *result = NULL;
+  switch (message.type()) {
+  case SessionMessage::TYPE_INITIATE:
+  case SessionMessage::TYPE_ACCEPT:
+  case SessionMessage::TYPE_MODIFY:
+    result = TranslateInitiateAcceptModify(message);
+    break;
+
+  case SessionMessage::TYPE_CANDIDATES:
+    result = TranslateCandidates(message);
+    break;
+
+  case SessionMessage::TYPE_REJECT:
+  case SessionMessage::TYPE_TERMINATE:
+    result = TranslateRejectTerminate(message);
+    break;
+
+  case SessionMessage::TYPE_REDIRECT:
+    result = TranslateRedirect(message);
+    break;
+  }
+
+  // Send the stanza. Note that SessionClient is passing on ownership
+  // of result.
+  if (result != NULL) {
+    SignalSendStanza(this, result);
+  }
+}
+
+buzz::XmlElement *SessionClient::TranslateHeader(const SessionMessage &message) {
+  buzz::XmlElement *result = new buzz::XmlElement(buzz::QN_IQ);
+  result->AddAttr(buzz::QN_TO, message.to());
+  result->AddAttr(buzz::QN_TYPE, buzz::STR_SET);
+  buzz::XmlElement *session = new buzz::XmlElement(QN_GOOGLESESSION_SESSION, true);
+  result->AddElement(session);
+  switch (message.type()) {
+  case SessionMessage::TYPE_INITIATE:
+    session->AddAttr(QN_TYPE, "initiate");
+    break;
+  case SessionMessage::TYPE_ACCEPT:
+    session->AddAttr(QN_TYPE, "accept");
+    break;
+  case SessionMessage::TYPE_MODIFY:
+    session->AddAttr(QN_TYPE, "modify");
+    break;
+  case SessionMessage::TYPE_CANDIDATES:
+    session->AddAttr(QN_TYPE, "candidates");
+    break;
+  case SessionMessage::TYPE_REJECT:
+    session->AddAttr(QN_TYPE, "reject");
+    break;
+  case SessionMessage::TYPE_REDIRECT:
+    session->AddAttr(QN_TYPE, "redirect");
+    break;
+  case SessionMessage::TYPE_TERMINATE:
+    session->AddAttr(QN_TYPE, "terminate");
+    break;
+  }
+  session->AddAttr(QN_ID, message.session_id().id_str());
+  session->AddAttr(QN_INITIATOR, message.session_id().initiator());
+  return result;
+}
+
+buzz::XmlElement *SessionClient::TranslateCandidate(const Candidate &candidate) {
+  buzz::XmlElement *result = new buzz::XmlElement(QN_GOOGLESESSION_CANDIDATE);
+  result->AddAttr(QN_NAME, candidate.name());
+  result->AddAttr(QN_ADDRESS, candidate.address().IPAsString());
+  result->AddAttr(QN_PORT, candidate.address().PortAsString());
+  result->AddAttr(QN_USERNAME, candidate.username());
+  result->AddAttr(QN_PASSWORD, candidate.password());
+  result->AddAttr(QN_PREFERENCE, candidate.preference_str());
+  result->AddAttr(QN_PROTOCOL, candidate.protocol());
+  result->AddAttr(QN_TYPE, candidate.type());
+  result->AddAttr(QN_NETWORK, candidate.network_name());
+  result->AddAttr(QN_GENERATION, candidate.generation_str());
+  return result;
+}
+
+buzz::XmlElement *SessionClient::TranslateInitiateAcceptModify(const SessionMessage &message) {
+  // Header info common to all message types
+  buzz::XmlElement *result = TranslateHeader(message);
+  buzz::XmlElement *session = result->FirstNamed(QN_GOOGLESESSION_SESSION);
+
+  // Candidates
+  assert(message.candidates().size() == 0);
+
+  // Session Description
+  buzz::XmlElement* description = TranslateSessionDescription(message.description());
+  assert(description->Name().LocalPart() == "description");
+  assert(description->Name().Namespace() == GetSessionDescriptionName());
+  session->AddElement(description);
+
+  if (message.redirect_cookie() != NULL) {
+    const buzz::XmlElement* cookie =
+      reinterpret_cast<XmlCookie*>(message.redirect_cookie())->elem();
+    for (const buzz::XmlElement* elem = cookie->FirstElement(); elem; elem = elem->NextElement())
+      session->AddElement(new buzz::XmlElement(*elem));
+  }
+
+  return result;
+}
+
+buzz::XmlElement *SessionClient::TranslateCandidates(const SessionMessage &message) {
+  // Header info common to all message types
+  buzz::XmlElement *result = TranslateHeader(message);
+  buzz::XmlElement *session = result->FirstNamed(QN_GOOGLESESSION_SESSION);
+
+  // Candidates
+  std::vector<Candidate>::const_iterator it;
+  for (it = message.candidates().begin(); it != message.candidates().end(); it++)
+    session->AddElement(TranslateCandidate(*it));
+
+  return result;
+}
+
+buzz::XmlElement *SessionClient::TranslateRejectTerminate(const SessionMessage &message) {
+  // These messages are simple, and only have a header
+  return TranslateHeader(message);
+}
+
+buzz::XmlElement *SessionClient::TranslateRedirect(const SessionMessage &message) {
+  // Header info common to all message types
+  buzz::XmlElement *result = TranslateHeader(message);
+  buzz::XmlElement *session = result->FirstNamed(QN_GOOGLESESSION_SESSION);
+
+  assert(message.candidates().size() == 0);
+  assert(message.description() == NULL);
+
+  assert(message.redirect_target().size() > 0);
+  buzz::XmlElement* target = new buzz::XmlElement(QN_GOOGLESESSION_TARGET);
+  target->AddAttr(QN_NAME, message.redirect_target());
+  session->AddElement(target);
+
+  buzz::XmlElement* cookie = new buzz::XmlElement(QN_GOOGLESESSION_COOKIE);
+  session->AddElement(cookie);
+
+  // If the message does not have a redirect cookie, then this is a redirect
+  // initiated by us.  We will automatically add a regarding cookie.
+  if (message.redirect_cookie() == NULL) {
+    buzz::XmlElement* regarding = new buzz::XmlElement(QN_GOOGLESESSION_REGARDING);
+    regarding->AddAttr(QN_NAME, GetJid().BareJid().Str());
+    cookie->AddElement(regarding);
+  } else {
+    const buzz::XmlElement* cookie_elem = 
+        reinterpret_cast<const XmlCookie*>(message.redirect_cookie())->elem();
+    const buzz::XmlElement* elem;
+    for (elem = cookie_elem->FirstElement(); elem; elem = elem->NextElement())
+      cookie->AddElement(new buzz::XmlElement(*elem));
+  }
+
+  return result;
+}
+
+SessionManager *SessionClient::session_manager() {
+  return session_manager_;
+}
+
+} // namespace cricket
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/sessionclient.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/sessionclient.h
new file mode 100644
index 00000000..69a18422
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/sessionclient.h
@@ -0,0 +1,104 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _SESSIONCLIENT_H_
+#define _SESSIONCLIENT_H_
+
+#include "talk/p2p/base/sessiondescription.h"
+#include "talk/p2p/base/sessionmessage.h"
+#include "talk/p2p/base/sessionmanager.h"
+#include "talk/xmllite/xmlelement.h"
+#include "talk/xmpp/jid.h"
+namespace cricket {
+
+// Generic XMPP session client. This class knows how to translate
+// a SessionMessage to and from XMPP stanzas. The SessionDescription
+// is a custom description implemented by the client.
+
+// This class knows how to talk to the session manager, however the
+// session manager doesn't have knowledge of a particular SessionClient.
+
+class SessionClient : public sigslot::has_slots<> {
+public:
+  SessionClient(SessionManager *psm);
+  virtual ~SessionClient();
+
+  // Call this method to determine if a stanza is for this session client
+  bool IsClientStanza(const buzz::XmlElement *stanza);
+
+  // Call this method to deliver a stanza to this session client
+  void OnIncomingStanza(const buzz::XmlElement *stanza);
+
+  // Call this whenever an error is recieved in response to an outgoing
+  // session IQ.  Include the original stanza and any failure stanza.  If
+  // the failure is due to a time out, the failure_stanza should be NULL
+  void OnFailedSend(const buzz::XmlElement* original_stanza,
+                    const buzz::XmlElement* failure_stanza);
+
+  SessionManager *session_manager();
+
+  // Implement this method for stanza sending
+  sigslot::signal2<SessionClient*, const buzz::XmlElement*> SignalSendStanza;
+
+protected:
+  // Override these to know when sessions belonging to this client create/destroy
+
+  virtual void OnSessionCreate(Session * /*session*/, bool /*received_initiate*/) {}
+  virtual void OnSessionDestroy(Session * /*session*/) {}
+
+  // Implement these methods for a custom session description
+  virtual const SessionDescription *CreateSessionDescription(const buzz::XmlElement *element) = 0;
+  virtual buzz::XmlElement *TranslateSessionDescription(const SessionDescription *description) = 0;
+  virtual const std::string &GetSessionDescriptionName() = 0;
+  virtual const buzz::Jid &GetJid() const = 0;
+
+  SessionManager *session_manager_;
+
+private:
+  void OnSessionCreateSlot(Session *session, bool received_initiate);
+  void OnSessionDestroySlot(Session *session);
+  void OnOutgoingMessage(Session *session, const SessionMessage &message);
+  void ParseHeader(const buzz::XmlElement *stanza, SessionMessage &message);
+  bool ParseCandidate(const buzz::XmlElement *child, Candidate* candidate);
+  bool ParseIncomingMessage(const buzz::XmlElement *stanza,
+                            SessionMessage& message);
+  void ParseInitiateAcceptModify(const buzz::XmlElement *stanza, SessionMessage &message);
+  void ParseCandidates(const buzz::XmlElement *stanza, SessionMessage &message);
+  void ParseRejectTerminate(const buzz::XmlElement *stanza, SessionMessage &message);
+  void ParseRedirect(const buzz::XmlElement *stanza, SessionMessage &message);
+  buzz::XmlElement *TranslateHeader(const SessionMessage &message);
+  buzz::XmlElement *TranslateCandidate(const Candidate &candidate);
+  buzz::XmlElement *TranslateInitiateAcceptModify(const SessionMessage &message);
+  buzz::XmlElement *TranslateCandidates(const SessionMessage &message);
+  buzz::XmlElement *TranslateRejectTerminate(const SessionMessage &message);
+  buzz::XmlElement *TranslateRedirect(const SessionMessage &message);
+
+};
+
+} // namespace cricket
+
+#endif // _SESSIONCLIENT_H_
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/socketmonitor.cc b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/socketmonitor.cc
new file mode 100644
index 00000000..dd9fa67c
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/socketmonitor.cc
@@ -0,0 +1,149 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "socketmonitor.h"
+#include <cassert>
+
+namespace cricket {
+
+const uint32 MSG_MONITOR_POLL = 1;
+const uint32 MSG_MONITOR_START = 2;
+const uint32 MSG_MONITOR_STOP = 3;
+const uint32 MSG_MONITOR_SIGNAL = 4;
+
+SocketMonitor::SocketMonitor(P2PSocket *socket, Thread *monitor_thread) {
+  socket_ = socket;
+  monitoring_thread_ = monitor_thread;
+  monitoring_ = false;
+}
+
+SocketMonitor::~SocketMonitor() {
+  socket_->thread()->Clear(this);
+  monitoring_thread_->Clear(this);
+}
+
+void SocketMonitor::Start(int milliseconds) {
+  rate_ = milliseconds;
+  if (rate_ < 250)
+    rate_ = 250;
+  socket_->thread()->Post(this, MSG_MONITOR_START);
+}
+
+void SocketMonitor::Stop() {
+  socket_->thread()->Post(this, MSG_MONITOR_STOP);
+}
+
+void SocketMonitor::OnMessage(Message *message) {
+  CritScope cs(&crit_);
+
+  switch (message->message_id) {
+  case MSG_MONITOR_START:
+    assert(Thread::Current() == socket_->thread());
+    if (!monitoring_) {
+      monitoring_ = true;
+      socket_->SignalConnectionMonitor.connect(this, &SocketMonitor::OnConnectionMonitor);
+      PollSocket(true);
+    }
+    break;
+
+  case MSG_MONITOR_STOP:
+    assert(Thread::Current() == socket_->thread());
+    if (monitoring_) {
+      monitoring_ = false;
+      socket_->SignalConnectionMonitor.disconnect(this);
+      socket_->thread()->Clear(this);
+    }
+    break;
+
+  case MSG_MONITOR_POLL:
+    assert(Thread::Current() == socket_->thread());
+    PollSocket(true);
+    break;
+
+  case MSG_MONITOR_SIGNAL:
+    {
+      assert(Thread::Current() == monitoring_thread_);
+      std::vector<ConnectionInfo> infos = connection_infos_;
+      crit_.Leave();
+      SignalUpdate(this, infos);
+      crit_.Enter();
+    }
+    break;
+  }
+}
+
+void SocketMonitor::OnConnectionMonitor(P2PSocket *socket) {
+  CritScope cs(&crit_);
+  if (monitoring_)
+    PollSocket(false);
+}
+
+void SocketMonitor::PollSocket(bool poll) {
+  CritScope cs(&crit_);
+  assert(Thread::Current() == socket_->thread());
+
+  // Gather connection infos
+
+  connection_infos_.clear();
+  const std::vector<Connection *> &connections = socket_->connections();
+  std::vector<Connection *>::const_iterator it;
+  for (it = connections.begin(); it != connections.end(); it++) {
+    Connection *connection = *it;
+    ConnectionInfo info;
+    info.best_connection = socket_->best_connection() == connection;
+    info.readable = connection->read_state() == Connection::STATE_READABLE;
+    info.writable = connection->write_state() == Connection::STATE_WRITABLE;
+    info.timeout = connection->write_state() == Connection::STATE_WRITE_TIMEOUT;
+    info.new_connection = false; // connection->new_connection();
+    info.rtt = connection->rtt();
+    info.sent_total_bytes = connection->sent_total_bytes();
+    info.sent_bytes_second = connection->sent_bytes_second();
+    info.recv_total_bytes = connection->recv_total_bytes();
+    info.recv_bytes_second = connection->recv_bytes_second();
+    info.local_candidate = connection->local_candidate();
+    info.remote_candidate = connection->remote_candidate();
+    info.est_quality = connection->port()->network()->quality();
+    info.key = reinterpret_cast<void *>(connection);
+    connection_infos_.push_back(info);
+  }
+
+  // Signal the monitoring thread, start another poll timer
+
+  monitoring_thread_->Post(this, MSG_MONITOR_SIGNAL);
+  if (poll)
+    socket_->thread()->PostDelayed(rate_, this, MSG_MONITOR_POLL);
+}
+
+P2PSocket *SocketMonitor::socket() {
+  return socket_;
+}
+
+Thread *SocketMonitor::monitor_thread() {
+  return monitoring_thread_;
+}
+
+}
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/socketmonitor.h b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/socketmonitor.h
new file mode 100644
index 00000000..549e90b6
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/p2p/client/socketmonitor.h
@@ -0,0 +1,85 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _SOCKETMONITOR_H_
+#define _SOCKETMONITOR_H_
+
+#include "talk/base/thread.h"
+#include "talk/base/sigslot.h"
+#include "talk/base/criticalsection.h"
+#include "talk/p2p/base/p2psocket.h"
+#include "talk/p2p/base/port.h"
+#include <vector>
+
+namespace cricket {
+
+struct ConnectionInfo {
+  bool best_connection;
+  bool writable;
+  bool readable;
+  bool timeout;
+  bool new_connection;
+  size_t rtt;
+  size_t sent_total_bytes;
+  size_t sent_bytes_second;
+  size_t recv_total_bytes;
+  size_t recv_bytes_second;
+  Candidate local_candidate;
+  Candidate remote_candidate;
+  double est_quality;
+  void *key;
+};
+
+class SocketMonitor : public MessageHandler, public sigslot::has_slots<> {
+public:
+  SocketMonitor(P2PSocket *socket, Thread *monitor_thread);
+  ~SocketMonitor();
+
+  void Start(int cms);
+  void Stop();
+
+  P2PSocket *socket();
+  Thread *monitor_thread();
+
+  sigslot::signal2<SocketMonitor *, const std::vector<ConnectionInfo> &> SignalUpdate;
+
+protected:
+  void OnMessage(Message *message);
+  void OnConnectionMonitor(P2PSocket *socket);
+  void PollSocket(bool poll);
+
+  std::vector<ConnectionInfo> connection_infos_;
+  P2PSocket *socket_;
+  Thread *monitoring_thread_;
+  CriticalSection crit_;
+  uint32 rate_;
+  bool monitoring_;
+};
+
+}
+
+#endif // _SOCKETMONITOR_H_