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28 #ifndef WEBRTC_P2P_BASE_STUNSERVER_H_
29 #define WEBRTC_P2P_BASE_STUNSERVER_H_
31 #include "webrtc/p2p/base/stun.h"
32 #include "webrtc/base/asyncudpsocket.h"
33 #include "webrtc/base/scoped_ptr.h"
37 const int STUN_SERVER_PORT = 3478;
39 class StunServer : public sigslot::has_slots<> {
41 // Creates a STUN server, which will listen on the given socket.
42 explicit StunServer(rtc::AsyncUDPSocket* socket);
43 // Removes the STUN server from the socket and deletes the socket.
47 // Slot for AsyncSocket.PacketRead:
49 rtc::AsyncPacketSocket* socket, const char* buf, size_t size,
50 const rtc::SocketAddress& remote_addr,
51 const rtc::PacketTime& packet_time);
53 // Handlers for the different types of STUN/TURN requests:
54 virtual void OnBindingRequest(StunMessage* msg,
55 const rtc::SocketAddress& addr);
56 void OnAllocateRequest(StunMessage* msg,
57 const rtc::SocketAddress& addr);
58 void OnSharedSecretRequest(StunMessage* msg,
59 const rtc::SocketAddress& addr);
60 void OnSendRequest(StunMessage* msg,
61 const rtc::SocketAddress& addr);
63 // Sends an error response to the given message back to the user.
64 void SendErrorResponse(
65 const StunMessage& msg, const rtc::SocketAddress& addr,
66 int error_code, const char* error_desc);
68 // Sends the given message to the appropriate destination.
69 void SendResponse(const StunMessage& msg,
70 const rtc::SocketAddress& addr);
72 // A helper method to compose a STUN binding response.
73 void GetStunBindReqponse(StunMessage* request,
74 const rtc::SocketAddress& remote_addr,
75 StunMessage* response) const;
78 rtc::scoped_ptr<rtc::AsyncUDPSocket> socket_;
81 } // namespace cricket
83 #endif // WEBRTC_P2P_BASE_STUNSERVER_H_