Allow receiving a packet on a TURN port from an unknown address.

webrtc/p2p/base/turnserver.h

 /*
  *  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 172 matching lines @@
     redirect_hook_ = redirect_hook;
   }
 
   void set_enable_otu_nonce(bool enable) { enable_otu_nonce_ = enable; }
 
   // If set to true, reject CreatePermission requests to RFC1918 addresses.
   void set_reject_private_addresses(bool filter) {
     reject_private_addresses_ = filter;
   }
 
+  void set_enable_permission_checks(bool enable) {
+    enable_permission_checks_ = enable;
+  }
+
   // Starts listening for packets from internal clients.
   void AddInternalSocket(rtc::AsyncPacketSocket* socket,
                          ProtocolType proto);
   // Starts listening for the connections on this socket. When someone tries
   // to connect, the connection will be accepted and a new internal socket
   // will be added.
   void AddInternalServerSocket(rtc::AsyncSocket* socket,
                                ProtocolType proto);
   // Specifies the factory to use for creating external sockets.
   void SetExternalSocketFactory(rtc::PacketSocketFactory* factory,
@@ skipping 58 matching lines @@
   rtc::Thread* thread_;
   std::string nonce_key_;
   std::string realm_;
   std::string software_;
   TurnAuthInterface* auth_hook_;
   TurnRedirectInterface* redirect_hook_;
   // otu - one-time-use. Server will respond with 438 if it's
   // sees the same nonce in next transaction.
   bool enable_otu_nonce_;
   bool reject_private_addresses_ = false;
+  // Check for permission when receiving an external packet.
+  bool enable_permission_checks_ = true;
 
   InternalSocketMap server_sockets_;
   ServerSocketMap server_listen_sockets_;
   std::unique_ptr<rtc::PacketSocketFactory> external_socket_factory_;
   rtc::SocketAddress external_addr_;
 
   AllocationMap allocations_;
 
   // For testing only. If this is non-zero, the next NONCE will be generated
   // from this value, and it will be reset to 0 after generating the NONCE.
   int64_t ts_for_next_nonce_ = 0;
 
   friend class TurnServerAllocation;
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_P2P_BASE_TURNSERVER_H_