void SelectedInterface_WlanNotification(Wlan.WlanNotificationData notifyData)
{
if (notifyData.notificationSource == Wlan.WlanNotificationSource.MSM)
{
SelectedInterface.RefreshConnected();
}
}
void SelectedInterface_WlanConnectionNotification(Wlan.WlanNotificationData notifyData, Wlan.WlanConnectionNotificationData connNotifyData)
{
if (owner != null && owner.IsVisible)
{
SelectedInterface?.UpdateInformation();
UpdateNetworkSignalQuality();
}
}
void SelectedInterface_WlanNotification(Wlan.WlanNotificationData notifyData)
{
if (owner != null && owner.IsVisible && notifyData.notificationSource == Wlan.WlanNotificationSource.MSM)
{
SelectedInterface?.UpdateInformation();
UpdateNetworkSignalQuality();
}
}
private void Owner_IsVisibleChanged(object sender, System.Windows.DependencyPropertyChangedEventArgs e)
{
if (owner.IsVisible)
{
selectedInterface.interFace.WlanConnectionNotification += SelectedInterface_WlanConnectionNotification;
selectedInterface.interFace.WlanNotification += SelectedInterface_WlanNotification;
selectedInterface.interFace.WlanReasonNotification += SelectedInterface_WlanReasonNotification;
SelectedInterface?.UpdateInformation();
}
else
{
selectedInterface.interFace.WlanConnectionNotification -= SelectedInterface_WlanConnectionNotification;
selectedInterface.interFace.WlanNotification -= SelectedInterface_WlanNotification;
selectedInterface.interFace.WlanReasonNotification -= SelectedInterface_WlanReasonNotification;
}
}
void SelectedInterface_WlanConnectionNotification(Wlan.WlanNotificationData notifyData, Wlan.WlanConnectionNotificationData connNotifyData)
{
SelectedInterface.RefreshConnected();
}
void SelectedInterface_WlanReasonNotification(Wlan.WlanNotificationData notifyData, Wlan.WlanReasonCode reasonCode)
{
SelectedInterface.RefreshConnected();
}
public void PacketHandler()
{
Packet packet;
try
{
IsBusy = true;
cts = new CancellationTokenSource();
CancellationToken token = cts.Token;
// Open the device
communicator = SelectedInterface.Open(65536, // 65536 guarantees that the whole packet will be captured on all the link layers
PacketDeviceOpenAttributes.Promiscuous, // promiscuous mode
1000); // read timeout
if (!string.IsNullOrEmpty(trafficFilter))
{
communicator.SetFilter(trafficFilter);
}
do
{
PacketCommunicatorReceiveResult result = communicator.ReceivePacket(out packet);
switch (result)
{
case PacketCommunicatorReceiveResult.Timeout:
// Timeout elapsed
continue;
case PacketCommunicatorReceiveResult.Ok:
if (packet.Ethernet.EtherType == EthernetType.IpV4)
{
Application.Current.Dispatcher.Invoke(() =>
{
packets.Add(packet);
StatHandler.UpdateStats(packet);
});
}
break;
default:
throw new InvalidOperationException("PacketCommunicator InvalidOperationException");
}
} while (!token.IsCancellationRequested);
}
catch (Exception ex)
{
MessageBox.Show("A handled exception occurred: " + ex.Message, "Tcp/Ip sniffer",
MessageBoxButton.OK, MessageBoxImage.Warning);
}
finally
{
communicator.Break();
communicator.Dispose();
communicator = null;
cts.Dispose();
cts = null;
IsBusy = false;
}
}
