/// <summary>Initializes the Ethernet device by opening the TAP device and
/// starting the ISource thread.</summary>
/// <param name="tap">The name of the TAP device on the host.</param>
public Ethernet(string device_name)
{
for (int i = 0; i < 15; i++)
{
try {
_tap = Ipop.Tap.TapDevice.GetTapDevice(device_name);
break;
} catch {}
Thread.Sleep(2);
ProtocolLog.WriteIf(ProtocolLog.Exceptions,
"Unable to set up the tap, trying again...");
}
if (_tap == null)
{
ProtocolLog.WriteIf(ProtocolLog.Exceptions, "Unable to set up the tap.");
Environment.Exit(1);
}
Address = _tap.Address;
_running = true;
_read_thread = new Thread(ReadLoop);
_read_thread.IsBackground = true;
_read_thread.Start();
}
public static IEnumerable <TapDevice> GetTapDevices()
{
var guid = GetClassGuid();
var propertyBuffer = new StringBuilder();
var deviceInfoData = new SetupApi.SP_DEVINFO_DATA();
var deviceInfoSet = SetupApi.SetupDiGetClassDevsA(ref guid, 0, IntPtr.Zero,
SetupApi.DIGCF_PRESENT);
if (deviceInfoSet == IntPtr.Add(IntPtr.Zero, -1))
{
}
var cont = true;
for (var i = 0; cont; i++)
{
deviceInfoData.cbSize = (uint)Marshal.SizeOf(typeof(SetupApi.SP_DEVINFO_DATA));
;
//is devices exist for class
deviceInfoData.DevInst = 0;
deviceInfoData.ClassGuid = guid;
deviceInfoData.Reserved = (IntPtr)0;
var res = SetupApi.SetupDiEnumDeviceInfo(deviceInfoSet,
(uint)i, ref deviceInfoData);
if (!res && deviceInfoData.DevInst == 0)
{
cont = false;
break;
}
propertyBuffer.Capacity = SetupApi.MAX_DEV_LEN;
uint index = 0;
uint requiredSize = 0;
res = SetupApi.SetupDiGetDeviceRegistryProperty(deviceInfoSet,
ref deviceInfoData, SetupApi.SPDRP_DEVICEDESC, out index,
propertyBuffer, SetupApi.MAX_DEV_LEN,
out requiredSize);
if (!res)
{
var error = SetupApi.GetLastError();
SetupApi.SetupDiDestroyDeviceInfoList(deviceInfoSet);
throw new Win32Exception(error);
}
var device = new TapDevice
{
Name = propertyBuffer.ToString(),
DevInst = deviceInfoData.DevInst
};
index = 0;
requiredSize = 0;
res = SetupApi.SetupDiGetDeviceRegistryProperty(deviceInfoSet,
ref deviceInfoData, SetupApi.SPDRP_HARDWAREID, out index,
propertyBuffer, SetupApi.MAX_DEV_LEN,
out requiredSize);
if (!res)
{
var error = SetupApi.GetLastError();
SetupApi.SetupDiDestroyDeviceInfoList(deviceInfoSet);
throw new Win32Exception(error);
}
device.HardwareId = propertyBuffer.ToString();
if (device.HardwareId == HardwareID)
{
yield return(device);
}
}
}
