(svn r15961) -Codechange: prepare the 'client' side for receiving 'session keys' from the masterserver so servers can register with multiple IPs as the same server.

1 files changed, 11 insertions, 0 deletions

diff --git a/src/network/network_udp.cpp b/src/network/network_udp.cpp
index 77de8fcd2..c1a775d46 100644
--- a/src/network/network_udp.cpp
+++ b/src/network/network_udp.cpp
@@ -28,6 +28,9 @@
 
 ThreadMutex *_network_udp_mutex = ThreadMutex::New();
 
+/** Session key to register ourselves to the master server */
+static uint64 _session_key = 0;
+
 enum {
 	ADVERTISE_NORMAL_INTERVAL = 30000, // interval between advertising in ticks (15 minutes)
 	ADVERTISE_RETRY_INTERVAL  =   300, // readvertise when no response after this many ticks (9 seconds)
@@ -43,6 +46,7 @@ NetworkUDPSocketHandler *_udp_master_socket = NULL; ///< udp master socket
 class MasterNetworkUDPSocketHandler : public NetworkUDPSocketHandler {
 protected:
 	DECLARE_UDP_RECEIVE_COMMAND(PACKET_UDP_MASTER_ACK_REGISTER);
+	DECLARE_UDP_RECEIVE_COMMAND(PACKET_UDP_MASTER_SESSION_KEY);
 public:
 	virtual ~MasterNetworkUDPSocketHandler() {}
 };
@@ -56,6 +60,12 @@ DEF_UDP_RECEIVE_COMMAND(Master, PACKET_UDP_MASTER_ACK_REGISTER)
 	if (!_settings_client.network.server_advertise) NetworkUDPRemoveAdvertise();
 }
 
+DEF_UDP_RECEIVE_COMMAND(Master, PACKET_UDP_MASTER_SESSION_KEY)
+{
+	_session_key = p->Recv_uint64();
+	DEBUG(net, 2, "[udp] received new session key from master server");
+}
+
 ///*** Communication with clients (we are server) ***/
 
 class ServerNetworkUDPSocketHandler : public NetworkUDPSocketHandler {
@@ -503,6 +513,7 @@ void NetworkUDPAdvertiseThread(void *pntr)
 	p.Send_string(NETWORK_MASTER_SERVER_WELCOME_MESSAGE);
 	p.Send_uint8 (NETWORK_MASTER_SERVER_VERSION);
 	p.Send_uint16(_settings_client.network.server_port);
+	p.Send_uint64(_session_key);
 
 	_network_udp_mutex->BeginCritical();
 	if (_udp_master_socket != NULL) _udp_master_socket->SendPacket(&p, &out_addr);