/// <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((GodLesZ.Library.Network.Packet.LinkLayers)LibPcapSafeNativeMethods.pcap_datalink(device.PcapHandle),
LibPcapSafeNativeMethods.pcap_snapshot(device.PcapHandle),
captureFilename,
FileMode.OpenOrCreate) {
}
/// <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((GodLesZ.Library.Network.Packet.LinkLayers)LibPcapSafeNativeMethods.pcap_datalink(device.PcapHandle),
LibPcapSafeNativeMethods.pcap_snapshot(device.PcapHandle),
captureFilename,
FileMode.OpenOrCreate)
{
}
/// <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);
}
/// <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>
/// 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;
}