private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
if (_device == null)
{
// Retrieve the device list
CaptureDeviceList devices = CaptureDeviceList.Instance;
// If no devices were found print an error
if (devices.Count < 1)
{
return;
}
List <WinPcapDevice> captureDevices =
devices.Where(d => d is WinPcapDevice).Cast <WinPcapDevice>().ToList();
var interfacePicker = new InterfacePicker(captureDevices);
interfacePicker.ShowDialog();
if (!interfacePicker.PressedYes)
{
return;
}
if (interfacePicker.SelectedDevice == null)
{
return;
}
// Print out the available network devices
_device = interfacePicker.SelectedDevice;
// Register our handler function to the
// 'packet arrival' event
_device.OnPacketArrival +=
device_OnPacketArrival;
}
UpdateStatus("Recording from " + _device.Interface.FriendlyName);
// Open the device for capturing
var readTimeoutMilliseconds = 1000;
_device.Open(DeviceMode.Promiscuous, readTimeoutMilliseconds);
// Start the capturing process
_device.StartCapture();
}