/// <summary>
/// Writes a packet to the pcap dump file associated with this device.
/// </summary>
/// <param name="p">The packet to write</param>
public void Dump(Kavprot.Packets.RawPacket p)
{
var data = p.Data;
var timeval = p.Timeval;
var header = new PcapHeader(timeval.Seconds, timeval.MicroSeconds,
(uint)data.Length, (uint)data.Length);
Dump(data, header);
}
/// <summary>
/// Convert an unmanaged packet into a managed Kavprot.Packets.RawPacket
/// </summary>
/// <param name="header">
/// A <see cref="IntPtr"/>
/// </param>
/// <param name="data">
/// A <see cref="IntPtr"/>
/// </param>
/// <returns>
/// A <see cref="Kavprot.Packets.RawPacket"/>
/// </returns>
protected virtual Kavprot.Packets.RawPacket MarshalRawPacket(IntPtr /* pcap_pkthdr* */ header, IntPtr data)
{
Kavprot.Packets.RawPacket p;
// marshal the header
var pcapHeader = new PcapHeader(header);
var pkt_data = new byte[pcapHeader.CaptureLength];
Marshal.Copy(data, pkt_data, 0, (int)pcapHeader.CaptureLength);
p = new Kavprot.Packets.RawPacket(LinkType,
new Kavprot.Packets.PosixTimeval(pcapHeader.Seconds,
pcapHeader.MicroSeconds),
pkt_data);
return(p);
}
/// <summary>
/// Writes a packet to the pcap dump file associated with this device.
/// </summary>
public void Dump(byte[] p, PcapHeader h)
{
ThrowIfNotOpen("Cannot dump packet, device is not opened");
if (!DumpOpened)
{
throw new DeviceNotReadyException("Cannot dump packet, dump file is not opened");
}
//Marshal packet
IntPtr pktPtr;
pktPtr = Marshal.AllocHGlobal(p.Length);
Marshal.Copy(p, 0, pktPtr, p.Length);
//Marshal header
IntPtr hdrPtr = h.MarshalToIntPtr();
LibPcapSafeNativeMethods.pcap_dump(m_pcapDumpHandle, hdrPtr, pktPtr);
Marshal.FreeHGlobal(pktPtr);
Marshal.FreeHGlobal(hdrPtr);
}
