internal void SendConnectionEstablished()
{
NetOutgoingMessage om = m_peer.CreateMessage(0);
om.m_messageType = NetMessageType.ConnectionEstablished;
om.Write((float)NetTime.Now);
m_peer.SendLibrary(om, m_remoteEndpoint);
m_handshakeAttempts = 0;
InitializePing();
if (m_status != NetConnectionStatus.Connected)
{
SetStatus(NetConnectionStatus.Connected, "Connected to " + NetUtility.ToHexString(m_remoteUniqueIdentifier));
}
}
private void InitializeNetwork()
{
lock (m_initializeLock)
{
m_configuration.Lock();
if (m_status == NetPeerStatus.Running)
{
return;
}
if (m_configuration.m_enableUPnP)
{
m_upnp = new NetUPnP(this);
}
InitializePools();
m_releasedIncomingMessages.Clear();
m_unsentUnconnectedMessages.Clear();
m_handshakes.Clear();
// bind to socket
IPEndPoint iep = null;
iep = new IPEndPoint(m_configuration.LocalAddress, m_configuration.Port);
EndPoint ep = (EndPoint)iep;
m_socket = new PlatformSocket();
m_socket.ReceiveBufferSize = m_configuration.ReceiveBufferSize;
m_socket.SendBufferSize = m_configuration.SendBufferSize;
m_socket.Blocking = false;
m_socket.Bind(ep);
m_socket.Setup();
IPEndPoint boundEp = m_socket.LocalEndPoint as IPEndPoint;
LogDebug("Socket bound to " + boundEp + ": " + m_socket.IsBound);
m_listenPort = boundEp.Port;
m_receiveBuffer = new byte[m_configuration.ReceiveBufferSize];
m_sendBuffer = new byte[m_configuration.SendBufferSize];
m_readHelperMessage = new NetIncomingMessage(NetIncomingMessageType.Error);
m_readHelperMessage.m_data = m_receiveBuffer;
byte[] macBytes = new byte[8];
NetRandom.Instance.NextBytes(macBytes);
#if IS_FULL_NET_AVAILABLE
try
{
System.Net.NetworkInformation.PhysicalAddress pa = NetUtility.GetMacAddress();
if (pa != null)
{
macBytes = pa.GetAddressBytes();
LogVerbose("Mac address is " + NetUtility.ToHexString(macBytes));
}
else
{
LogWarning("Failed to get Mac address");
}
}
catch (NotSupportedException)
{
// not supported; lets just keep the random bytes set above
}
#endif
byte[] epBytes = BitConverter.GetBytes(boundEp.GetHashCode());
byte[] combined = new byte[epBytes.Length + macBytes.Length];
Array.Copy(epBytes, 0, combined, 0, epBytes.Length);
Array.Copy(macBytes, 0, combined, epBytes.Length, macBytes.Length);
#if WINDOWS_PHONE
SHA1 s = new SHA1Managed();
m_uniqueIdentifier = BitConverter.ToInt64(s.ComputeHash(combined), 0);
#else
m_uniqueIdentifier = BitConverter.ToInt64(SHA1.Create().ComputeHash(combined), 0);
#endif
m_status = NetPeerStatus.Running;
}
}
internal void ReceivedHandshake(double now, NetMessageType tp, int ptr, int payloadLength)
{
m_peer.VerifyNetworkThread();
byte[] hail;
switch (tp)
{
case NetMessageType.Connect:
if (m_status == NetConnectionStatus.None)
{
// Whee! Server full has already been checked
bool ok = ValidateHandshakeData(ptr, payloadLength, out hail);
if (ok)
{
if (hail != null)
{
m_remoteHailMessage = m_peer.CreateIncomingMessage(NetIncomingMessageType.Data, hail);
m_remoteHailMessage.LengthBits = (hail.Length * 8);
}
else
{
m_remoteHailMessage = null;
}
if (m_peerConfiguration.IsMessageTypeEnabled(NetIncomingMessageType.ConnectionApproval))
{
// ok, let's not add connection just yet
NetIncomingMessage appMsg = m_peer.CreateIncomingMessage(NetIncomingMessageType.ConnectionApproval, (m_remoteHailMessage == null ? 0 : m_remoteHailMessage.LengthBytes));
appMsg.m_receiveTime = now;
appMsg.m_senderConnection = this;
appMsg.m_senderEndpoint = this.m_remoteEndpoint;
if (m_remoteHailMessage != null)
{
appMsg.Write(m_remoteHailMessage.m_data, 0, m_remoteHailMessage.LengthBytes);
}
m_peer.ReleaseMessage(appMsg);
return;
}
SendConnectResponse((float)now, true);
}
return;
}
if (m_status == NetConnectionStatus.RespondedConnect)
{
// our ConnectResponse must have been lost
SendConnectResponse((float)now, true);
return;
}
m_peer.LogDebug("Unhandled Connect: " + tp + ", status is " + m_status + " length: " + payloadLength);
break;
case NetMessageType.ConnectResponse:
switch (m_status)
{
case NetConnectionStatus.InitiatedConnect:
// awesome
bool ok = ValidateHandshakeData(ptr, payloadLength, out hail);
if (ok)
{
if (hail != null)
{
m_remoteHailMessage = m_peer.CreateIncomingMessage(NetIncomingMessageType.Data, hail);
m_remoteHailMessage.LengthBits = (hail.Length * 8);
}
else
{
m_remoteHailMessage = null;
}
m_peer.AcceptConnection(this);
SendConnectionEstablished();
return;
}
break;
case NetConnectionStatus.RespondedConnect:
// hello, wtf?
break;
case NetConnectionStatus.Disconnecting:
case NetConnectionStatus.Disconnected:
case NetConnectionStatus.None:
// wtf? anyway, bye!
break;
case NetConnectionStatus.Connected:
// my ConnectionEstablished must have been lost, send another one
SendConnectionEstablished();
return;
}
break;
case NetMessageType.ConnectionEstablished:
switch (m_status)
{
case NetConnectionStatus.Connected:
// ok...
break;
case NetConnectionStatus.Disconnected:
case NetConnectionStatus.Disconnecting:
case NetConnectionStatus.None:
// too bad, almost made it
break;
case NetConnectionStatus.InitiatedConnect:
// weird, should have been ConnectResponse...
break;
case NetConnectionStatus.RespondedConnect:
// awesome
NetIncomingMessage msg = m_peer.SetupReadHelperMessage(ptr, payloadLength);
InitializeRemoteTimeOffset(msg.ReadSingle());
m_peer.AcceptConnection(this);
InitializePing();
SetStatus(NetConnectionStatus.Connected, "Connected to " + NetUtility.ToHexString(m_remoteUniqueIdentifier));
return;
}
break;
case NetMessageType.Disconnect:
// ouch
string reason = "Ouch";
try
{
NetIncomingMessage inc = m_peer.SetupReadHelperMessage(ptr, payloadLength);
reason = inc.ReadString();
}
catch
{
}
ExecuteDisconnect(reason, false);
break;
case NetMessageType.Discovery:
m_peer.HandleIncomingDiscoveryRequest(now, m_remoteEndpoint, ptr, payloadLength);
return;
case NetMessageType.DiscoveryResponse:
m_peer.HandleIncomingDiscoveryResponse(now, m_remoteEndpoint, ptr, payloadLength);
return;
case NetMessageType.Ping:
// silently ignore
return;
default:
m_peer.LogDebug("Unhandled type during handshake: " + tp + " length: " + payloadLength);
break;
}
}