private void lstDevices_SelectedIndexChanged(object sender, EventArgs e)
{
if (lstDevices.SelectedIndex > -1)
{
lblSelectedDevice.Text = lstDevices.SelectedItem.ToString();
Log("selected device changed to " + devices[lstDevices.SelectedIndex].Description.ToString());
device = devices[lstDevices.SelectedIndex];
}
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="device">
/// A <see cref="LibPcapLiveDevice"/>
/// </param>
/// <param name="captureFilename">
/// A <see cref="System.String"/>
/// </param>
public CaptureFileWriterDevice(LibPcapLiveDevice device,
string captureFilename) :
this((PacketDotNet.LinkLayers)LibPcapSafeNativeMethods.pcap_datalink(device.PcapHandle),
LibPcapSafeNativeMethods.pcap_snapshot(device.PcapHandle),
captureFilename,
FileMode.OpenOrCreate)
{
}
public void TestStatistics()
{
var devices = LibPcapLiveDeviceList.Instance;
if (devices.Count == 0)
{
var error = "No pcap supported devices found, are you running" +
" as a user with access to adapters (root on Linux)?";
throw new System.InvalidOperationException(error);
}
else
{
Console.WriteLine("Found {0} devices", devices.Count);
}
SharpPcap.LibPcap.LibPcapLiveDevice dev = null;
foreach (var d in devices)
{
Console.WriteLine(d.ToString());
if (d.Name == "any")
{
dev = d;
}
}
// if we couldn't find the 'any' device (maybe we are running on Windows)
// then just use the first device we can find, if there are any devices
if ((dev == null) && devices.Count != 0)
{
dev = devices[0];
}
Assert.IsNotNull(dev, "Unable to find a capture device");
// open a device for capture
dev.Open();
// wait a little while so maybe packets will pass by
System.Threading.Thread.Sleep(500);
// retrieve the statistics
var statistics = dev.Statistics;
// output the statistics
Console.WriteLine("statistics: {0}", statistics.ToString());
dev.Close();
}
/// <summary>
/// Constructs a new ARP Resolver
/// </summary>
/// <param name="device">The network device on which this resolver sends its ARP packets</param>
public ARP(LibPcap.LibPcapLiveDevice device)
{
_device = device;
}
private void SetupAdapter()
{
if (mDevice != null)
{
mDevice.Close();
}
foreach (LibPcapLiveDevice device in LibPcapLiveDeviceList.Instance)
{
if (device.Interface.FriendlyName == Config.Instance.Interface)
{
mDevice = device;
break;
}
}
if (mDevice == null)
{
// Well shit...
MessageBox.Show("Invalid configuration. Please re-setup your MultiShark configuration.", "MultiShark", MessageBoxButtons.OK, MessageBoxIcon.Error);
if (ShowSetupForm() != DialogResult.OK)
{
Close();
return;
}
SetupAdapter();
}
try
{
mDevice.Open(DeviceMode.Promiscuous, 1);
}
catch
{
MessageBox.Show("Failed to set the device in Promiscuous mode! But that doesn't really matter lol.");
mDevice.Open();
}
mDevice.Filter = string.Format("tcp portrange {0}-{1}", Config.Instance.LowPort, Config.Instance.HighPort);
}
/// <summary>
/// Creates a new ethernet port instance
/// </summary>
/// <param name="options">The options for the port</param>
public EthernetPort(EthernetPortOptions options)
{
this._options = options.Clone();
this._device = _getCaptureDevice();
this._device.OnPacketArrival += _onPacketArrival;
}
private void MainForm_Load(object pSender, EventArgs pArgs)
{
if (new SetupForm().ShowDialog(this) != DialogResult.OK) { Close(); return; }
foreach (LibPcapLiveDevice device in LibPcapLiveDeviceList.Instance)
{
if (device.Interface.FriendlyName == Config.Instance.Interface)
{
mDevice = device;
break;
}
}
try
{
mDevice.Open(DeviceMode.Promiscuous, 1);
}
catch
{
MessageBox.Show("Failed to set the device in Promiscuous mode! But that doesn't really matter lol.");
mDevice.Open();
}
mDevice.Filter = string.Format("tcp portrange {0}-{1}", Config.Instance.LowPort, Config.Instance.HighPort);
mTimer.Enabled = true;
mSearchForm.Show(mDockPanel);
mDataForm.Show(mDockPanel);
mStructureForm.Show(mDockPanel);
mPropertyForm.Show(mDockPanel);
DockPane rightPane1 = new DockPane(mStructureForm, DockState.DockRight, true);
DockPane rightPane2 = new DockPane(mPropertyForm, DockState.DockRight, true);
rightPane1.Show();
rightPane2.Show();
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="device">
/// A <see cref="LibPcapLiveDevice"/>
/// </param>
/// <param name="captureFilename">
/// A <see cref="System.String"/>
/// </param>
/// <param name="mode">
/// A <see cref="FileMode"/>
/// </param>
public CaptureFileWriterDevice(LibPcapLiveDevice device,
string captureFilename,
FileMode mode) :
this((PacketDotNet.LinkLayers)LibPcapSafeNativeMethods.pcap_datalink(device.PcapHandle),
LibPcapSafeNativeMethods.pcap_snapshot(device.PcapHandle),
captureFilename,
mode)
{
}
public void Start()
{
_device = Open();
if (_device == null) throw new Exception("Cannot open Ethernet interface");
_deviceMac = _device.Interface.MacAddress.GetAddressBytes();
// filter to only bacnet packets
_device.Filter = "ether proto 0x82";
System.Threading.Thread th = new Threading.Thread(CaptureThread);
th.IsBackground = true;
th.Start();
}
/// <summary>
/// Constructs a new ARP Resolver
/// </summary>
/// <param name="device">The network device on which this resolver sends its ARP packets</param>
public ARP(LibPcap.LibPcapLiveDevice device)
{
_device = device;
}
/// <summary>
/// Retrieve pcap statistics from the adapter
/// </summary>
/// <param name="pcap_t">
/// pcap_t* for the adapter
/// A <see cref="IntPtr"/>
/// </param>
internal PcapStatistics(IntPtr pcap_t)
{
IntPtr stat;
if (Environment.OSVersion.Platform == PlatformID.Unix)
{
// allocate memory for the struct
stat = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(PcapUnmanagedStructures.pcap_stat_unix)));
}
else
{
// allocate memory for the struct
stat = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(PcapUnmanagedStructures.pcap_stat_windows)));
}
// retrieve the stats
var result = (PcapUnmanagedStructures.PcapStatReturnValue)LibPcapSafeNativeMethods.pcap_stats(pcap_t, stat);
// process the return value
switch (result)
{
case PcapUnmanagedStructures.PcapStatReturnValue.Error:
// retrieve the error information
var error = LibPcapLiveDevice.GetLastError(pcap_t);
// free the stats memory so we don't leak before we throw
Marshal.FreeHGlobal(stat);
throw new StatisticsException(error);
case PcapUnmanagedStructures.PcapStatReturnValue.Success:
// nothing to do upon success
break;
}
// marshal the unmanaged memory into an object of the proper type
if (Environment.OSVersion.Platform == PlatformID.Unix)
{
var managedStat = (PcapUnmanagedStructures.pcap_stat_unix)Marshal.PtrToStructure(stat,
typeof(PcapUnmanagedStructures.pcap_stat_unix));
// copy the values
this.ReceivedPackets = (uint)managedStat.ps_recv;
this.DroppedPackets = (uint)managedStat.ps_drop;
// this.InterfaceDroppedPackets = (uint)managedStat.ps_ifdrop;
}
else
{
var managedStat = (PcapUnmanagedStructures.pcap_stat_windows)Marshal.PtrToStructure(stat,
typeof(PcapUnmanagedStructures.pcap_stat_windows));
// copy the values
this.ReceivedPackets = (uint)managedStat.ps_recv;
this.DroppedPackets = (uint)managedStat.ps_drop;
// this.InterfaceDroppedPackets = (uint)managedStat.ps_ifdrop;
}
// NOTE: Not supported on unix or winpcap, no need to
// put a bogus value in this field
this.InterfaceDroppedPackets = 0;
// free the stats
Marshal.FreeHGlobal(stat);
}
