private static int BuildCFAPackgage(byte[] dgram, int bytes, SendControlTypes sendControlType, int package_id, byte[] copy_to)
{
ClearBuffer(copy_to);
copy_to[0] = 67; // C
copy_to[1] = 70; // F
copy_to[2] = 65; // A
copy_to[3] = (byte)sendControlType;
copy_to[4] = (byte)((package_id >> 24) & 255);
copy_to[5] = (byte)((package_id >> 16) & 255);
copy_to[6] = (byte)((package_id >> 8) & 255);
copy_to[7] = (byte)((package_id) & 255);
ByteWrite(dgram, bytes, copy_to, 8);
return(bytes + 8);
}
private void ProccessACKPackage(IPEndPoint remote_ep, byte[] package)
{
if (package[0] == 67 &&
package[1] == 70 &&
package[2] == 65)
{
// Is a CFA package
SendControlTypes control_type = (SendControlTypes)package[3];
int package_id = 0;
package_id = (package[4] << 24);
package_id = package_id | (package[5] << 16);
package_id = package_id | (package[6] << 8);
package_id = package_id | (package[7]);
switch (control_type)
{
case SendControlTypes.None:
break;
case SendControlTypes.Ordered:
break;
case SendControlTypes.Arrival:
case SendControlTypes.Both:
{
lock (m_remoteTunnels)
{
if (m_remoteTunnels.ContainsKey(remote_ep))
{
m_remoteTunnels[remote_ep].ACKPackage(package_id);
}
}
}
break;
default:
break;
}
}
}
public void Send(byte[] dgram, int bytes, IPEndPoint endPoint, SendControlTypes sendControlType)
{
switch (sendControlType)
{
case SendControlTypes.None:
{
m_udpClient.Send(dgram, bytes, endPoint);
}
break;
case SendControlTypes.Ordered:
break;
case SendControlTypes.Arrival:
case SendControlTypes.Both:
{
lock (m_remoteTunnels)
{
if (m_remoteTunnels.ContainsKey(endPoint))
{
m_remoteTunnels[endPoint].SendPackage(dgram, bytes, m_udpClient, endPoint);
}
else
{
CreateNewTunnel(endPoint).SendPackage(dgram, bytes, m_udpClient, endPoint);
}
}
}
break;
default:
break;
}
// Will automaticlly close when all packages are acked.
StartTunnelWork();
}
