private void StartThread()
{
UdpClient receivingUdpClient = new UdpClient(PortServer);
IPEndPoint RemoteIpEndPoint = null;
try
{
while (!IsStop)
{
try
{
byte[] receiveBytes = receivingUdpClient.Receive(ref RemoteIpEndPoint);
byte[] ip = RemoteIpEndPoint.Address.GetAddressBytes();
if (receiveBytes[1] != 0x05)
{
continue;
}
HeaderNetFlow header = this.ParsingHeder(ref receiveBytes);
header.FromHost = (uint)(ip[3] & 0xFF | (ip[2] & 0xFF) << 8 | (ip[1] & 0xFF) << 16 | (ip[0] & 0xFF) << 24);//RawToUInt(ref ip, 0);
RowNetFlow[] rows = new RowNetFlow[header.Count];
for (int i = 0; i < header.Count; i++)
{
rows[i] = this.ParsingRow(ref receiveBytes, 24 + i * 48);
}
if (uiContext != null)
{
uiContext.Post(OnNewPackage, new NewPackageEvent(receiveBytes)
{
Header = header, Rows = rows
});
}
else
{
OnNewPackage(new NewPackageEvent(receiveBytes)
{
Header = header, Rows = rows
});
}
}
catch (ThreadAbortException exAbort)
{
Logs.Write(exAbort);
}
catch (Exception e)
{
Logs.Write(e);
}
}
receivingUdpClient.Close();
}
catch (Exception ex)
{
Logs.Write(ex);
receivingUdpClient.Close();
}
}
/// <summary>
/// Парсинг заголовка пакета Netflow v5
/// </summary>
/// param name="Data" ссылка не массив байт пакета
private HeaderNetFlow ParsingHeder(ref byte[] Data)
{
HeaderNetFlow ret = new HeaderNetFlow();
ret.Version = 5;
ret.Count = (ushort)((Data[3] & 0xFF) | (Data[2] & 0xFF) << 8);
ret.Sys_uptime = RawToUInt(ref Data, 4);
ret.Unix_secs = RawToUInt(ref Data, 8);
ret.Unix_nsecs = RawToUInt(ref Data, 12);
ret.Flow_sequence = RawToUInt(ref Data, 16);
ret.Engine_type = Data[20];
ret.Engine_id = Data[21];
ret.Sampling_interval = (ushort)((Data[23] & 0xFF) | (Data[22] & 0xFF) << 8);
return(ret);
}