public void ProcessPing(StandardPingTunnelPacket ping, UdpClient udpClient)
{
StandardPongTunnelPacket pong = new StandardPongTunnelPacket()
{
data = ping.data
};
byte[] bytes = pong.getBytes();
udpClient.Send(bytes, bytes.Length, ping.ip);
//Logger.Debug("Sent a UDP pong [seq=" + ping.data[0] + "] to " + ping.ip);
}
public BasicTunnelPacket getPacket(byte[] bytes, IPEndPoint ip)
{
BasicTunnelPacket packet;
switch (bytes[BasicTunnelPacket.PKT_POS_TYPE])
{
case BasicTunnelPacket.PKT_TYPE_PING:
packet = new StandardPingTunnelPacket();
break;
case BasicTunnelPacket.PKT_TYPE_PONG:
packet = new StandardPongTunnelPacket();
break;
case BasicTunnelPacket.PKT_TYPE_SYNC_RS:
packet = new StandardSyncRsTunnelPacket();
break;
case BasicTunnelPacket.PKT_TYPE_SYNC_RQ:
packet = new StandardSyncRqTunnelPacket();
break;
case BasicTunnelPacket.PKT_TYPE_WAVE_RS:
packet = new StandardWaveTunnelRsPacket();
break;
case BasicTunnelPacket.PKT_TYPE_WAVE_RQ:
packet = new StandardWaveTunnelRqPacket();
break;
case BasicTunnelPacket.PKT_TYPE_DATA:
packet = new StandardTunnelDataPacket();
break;
case BasicTunnelPacket.PKT_TYPE_NOP:
packet = new StandardTunnelNopPacket();
break;
case BasicTunnelPacket.PKT_TYPE_CLOSE:
packet = new StandardCloseTunnelPacket();
break;
default:
throw new UnknownPacketException("Failed to determine packet type [" + bytes[BasicTunnelPacket.PKT_POS_TYPE] + "]");
}
packet.processPacket(bytes, ip);
return(packet);
}
public int Ping(IPEndPoint ipEndPoint, int timeout, UdpClient udpClient)
{
StandardPingTunnelPacket ping = new StandardPingTunnelPacket()
{
data = new[] { _pingSeq++ }
};
long startTime = DateTime.Now.Ticks;
_pingEvent.Reset();
byte[] bytes = ping.getBytes();
udpClient.Send(bytes, bytes.Length, ipEndPoint);
if (!_pingEvent.WaitOne(timeout))
{
throw new TimeoutException("Timeout occured while attempting to ping [seq=" + ping.data[0] + "] " + ipEndPoint);
}
long stopTime = DateTime.Now.Ticks;
int pingTimeMillis = (int)((stopTime - startTime) / 10000);
Logger.Debug("Successfully UDP pinged [seq=" + ping.data[0] + "] tunnel " + Id + " in " + pingTimeMillis + "ms");
return(pingTimeMillis);
}
