/// <summary>
/// Request time from NTP server and calls callback (if success)
/// </summary>
/// <param name="ntpServerAddress">NTP Server address</param>
/// <param name="port">port</param>
/// <param name="onRequestComplete">callback (called from other thread!)</param>
public static void RequestTimeFromNTP(string ntpServerAddress, int port, Action <DateTime?> onRequestComplete)
{
NetSocket socket = null;
var ntpEndPoint = MakeEndPoint(ntpServerAddress, port);
NetManager.OnMessageReceived onReceive = (data, length, code, point) =>
{
if (!point.Equals(ntpEndPoint) || length < 48)
{
return;
}
socket.Close();
ulong intPart = (ulong)data[40] << 24 | (ulong)data[41] << 16 | (ulong)data[42] << 8 | (ulong)data[43];
ulong fractPart = (ulong)data[44] << 24 | (ulong)data[45] << 16 | (ulong)data[46] << 8 | (ulong)data[47];
var milliseconds = (intPart * 1000) + ((fractPart * 1000) / 0x100000000L);
onRequestComplete(new DateTime(1900, 1, 1, 0, 0, 0, DateTimeKind.Utc).AddMilliseconds((long)milliseconds));
};
//Create and start socket
socket = new NetSocket(onReceive);
socket.Bind(IPAddress.Any, IPAddress.IPv6Any, 0, false);
//Send request
int errorCode = 0;
var sendData = new byte[48];
sendData[0] = 0x1B;
var sendCount = socket.SendTo(sendData, 0, sendData.Length, ntpEndPoint, ref errorCode);
if (errorCode != 0 || sendCount != sendData.Length)
{
onRequestComplete(null);
}
}
public void NatIntroduce(
IPEndPoint hostInternal,
IPEndPoint hostExternal,
IPEndPoint clientInternal,
IPEndPoint clientExternal,
string additionalInfo)
{
NetDataWriter dw = new NetDataWriter();
//First packet (server)
//send to client
dw.Put((byte)PacketProperty.NatIntroduction);
dw.Put(ClientByte);
dw.Put(hostInternal);
dw.Put(hostExternal);
dw.Put(additionalInfo, MaxTokenLength);
int errorCode = 0;
_socket.SendTo(dw.Data, 0, dw.Length, clientExternal, ref errorCode);
//Second packet (client)
//send to server
dw.Reset();
dw.Put((byte)PacketProperty.NatIntroduction);
dw.Put(HostByte);
dw.Put(clientInternal);
dw.Put(clientExternal);
dw.Put(additionalInfo, MaxTokenLength);
_socket.SendTo(dw.Data, 0, dw.Length, hostExternal, ref errorCode);
}
internal bool SendRaw(byte[] message, int start, int length, IPEndPoint remoteEndPoint)
{
if (!IsRunning)
{
return(false);
}
int errorCode = 0;
if (socket.SendTo(message, start, length, remoteEndPoint, ref errorCode) <= 0)
{
return(false);
}
//10040 message to long... need to check
//10065 no route to host
if (errorCode == 10040)
{
NetUtils.DebugWrite(ConsoleColor.Red, "[SRD] 10040, datalen: {0}", length);
return(false);
}
if (errorCode != 0 && errorCode != 10065)
{
//Send error
NetPeer fromPeer;
if (peers.TryGetValue(remoteEndPoint, out fromPeer))
{
DisconnectPeer(fromPeer, DisconnectReason.SocketSendError, errorCode, true, null, 0, 0);
}
var netEvent = CreateEvent(NetEventType.Error);
netEvent.RemoteEndPoint = remoteEndPoint;
netEvent.AdditionalData = errorCode;
EnqueueEvent(netEvent);
return(false);
}
#if STATS_ENABLED
Statistics.PacketsSent++;
Statistics.BytesSent += (uint)length;
#endif
return(true);
}
