Stop processing any incoming packets when turn port is disconnected.

webrtc/p2p/base/turnport.cc

 /*
  *  Copyright 2012 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 537 matching lines @@
                             << server_address_.address.ToString();
     return;
   }
 
   // The message must be at least the size of a channel header.
   if (size < TURN_CHANNEL_HEADER_SIZE) {
     LOG_J(LS_WARNING, this) << "Received TURN message that was too short";
     return;
   }
 
+  if (state_ == STATE_DISCONNECTED) {
+    LOG_J(LS_WARNING, this)
+        << "Received TURN message while the Turn port is disconnected";
+    return;
+  }
+
   // Check the message type, to see if is a Channel Data message.
   // The message will either be channel data, a TURN data indication, or
   // a response to a previous request.
   uint16_t msg_type = rtc::GetBE16(data);
   if (IsTurnChannelData(msg_type)) {
     HandleChannelData(msg_type, data, size, packet_time);
   } else if (msg_type == TURN_DATA_INDICATION) {
     HandleDataIndication(data, size, packet_time);
   } else {
     if (SharedSocket() &&
@@ skipping 932 matching lines @@
   } else {
     state_ = STATE_UNBOUND;
     port_->DestroyConnection(ext_addr_);
   }
 }
 void TurnEntry::OnChannelBindTimeout() {
   state_ = STATE_UNBOUND;
   port_->DestroyConnection(ext_addr_);
 }
 }  // namespace cricket