/// <summary>
/// Process Auto Detect feature
/// </summary>
/// <param name="pdu"></param>
public override void ProcessSubHeaders(RdpemtBasePDU pdu)
{
if (pdu == null || pdu.TunnelHeader == null)
{
return;
}
if (detectBandwidth)
{
// if detect device, count bytes
bandwidthMeasurePayloadByteCount += ((uint)pdu.TunnelHeader.PayloadLength + pdu.TunnelHeader.HeaderLength);
}
RDP_TUNNEL_SUBHEADER[] RDPTunnelSubHeaders = pdu.TunnelHeader.SubHeaders;
if (RDPTunnelSubHeaders != null)
{
foreach (RDP_TUNNEL_SUBHEADER RDPTunnelSubHeader in RDPTunnelSubHeaders)
{
if (RDPTunnelSubHeader.SubHeaderType == RDP_TUNNEL_SUBHEADER_TYPE_Values.TYPE_ID_AUTODETECT_REQUEST)
{
uint sequenceNumber = (uint)(RDPTunnelSubHeader.SubHeaderData[1] << 8) + RDPTunnelSubHeader.SubHeaderData[0];
uint responseType = (uint)(RDPTunnelSubHeader.SubHeaderData[3] << 8) + RDPTunnelSubHeader.SubHeaderData[2];
if (responseType == (uint)AUTO_DETECT_REQUEST_TYPE.RDP_BW_START_AFTER_CONNECTTIME_OR_LOSSYUDP ||
responseType == (uint)AUTO_DETECT_REQUEST_TYPE.RDP_BW_START_AFTER_CONNECTTIME_OR_RELIABLEUDP)
{
// Start bandwidth detect
bandwidthMeasureStartTime = DateTime.Now;
bandwidthMeasurePayloadByteCount = 0;
detectBandwidth = true;
}
else if (responseType == (uint)AUTO_DETECT_REQUEST_TYPE.RDP_BW_STOP_AFTER_CONNECTTIME_OR_LOSSYUDP ||
responseType == (uint)AUTO_DETECT_REQUEST_TYPE.RDP_BW_STOP_AFTER_CONNECTTIME_OR_RELIABLEUDP)
{
detectBandwidth = false;
TimeSpan duration = DateTime.Now - bandwidthMeasureStartTime;
this.timeDelta = (uint)duration.TotalMilliseconds;
bwStopSequenceNumber = (ushort)sequenceNumber;
// Send RDP_BW_RESULTS
if (AutoHandle)
{
byte[] subHeader = GenerateSubHander_BWResult();
List <byte[]> subHeaders = new List <byte[]>();
subHeaders.Add(subHeader);
RDP_TUNNEL_DATA tunnelData = CreateTunnelDataPdu(null, subHeaders, RDP_TUNNEL_SUBHEADER_TYPE_Values.TYPE_ID_AUTODETECT_RESPONSE);
this.SendRdpemtPacket(tunnelData);
}
}
else if (responseType == (uint)AUTO_DETECT_REQUEST_TYPE.RDP_NETCHAR_RESULT_BANDWIDTH_AVERAGERTT ||
responseType == (uint)AUTO_DETECT_REQUEST_TYPE.RDP_NETCHAR_RESULT_BASERTT_BANDWIDTH_AVERAGERTT)
{
// Update bandwidth
RDP_NETCHAR_RESULT ncRes = RdpemtUtility.ParseRdpNetCharResult(RDPTunnelSubHeader.SubHeaderData);
this.bandwidth = ncRes.bandwidth;
}
}
}
}
}
/// <summary>
/// Process Auto Detect feature
/// </summary>
/// <param name="pdu"></param>
public override void ProcessSubHeaders(RdpemtBasePDU pdu)
{
RDP_TUNNEL_SUBHEADER[] RDPTunnelSubHeaders = pdu.TunnelHeader.SubHeaders;
if (RDPTunnelSubHeaders != null)
{
foreach (RDP_TUNNEL_SUBHEADER RDPTunnelSubHeader in RDPTunnelSubHeaders)
{
if (RDPTunnelSubHeader.SubHeaderType == RDP_TUNNEL_SUBHEADER_TYPE_Values.TYPE_ID_AUTODETECT_RESPONSE)
{
uint responseType = (uint)(RDPTunnelSubHeader.SubHeaderData[3] << 8) + RDPTunnelSubHeader.SubHeaderData[2];
if (responseType == (uint)AUTO_DETECT_RESPONSE_TYPE.RDP_BW_RESULTS_AFTER_CONNECT)
{
RDP_BW_RESULTS bwRes = RdpemtUtility.ParseRdpBWResults(RDPTunnelSubHeader.SubHeaderData);
this.bandwidth = (bwRes.byteCount * 8) / bwRes.timeDelta;
}
}
}
}
}
