/// <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(byte[] p, PcapHeader h)
{
if (!Opened)
{
throw new PcapDeviceNotReadyException("Cannot dump packet, device is not opened");
}
if (!DumpOpened)
{
throw new PcapDeviceNotReadyException("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();
SafeNativeMethods.pcap_dump(m_pcapDumpHandle, hdrPtr, pktPtr);
Marshal.FreeHGlobal(pktPtr);
Marshal.FreeHGlobal(hdrPtr);
}
/// <summary>
/// Add a packet to this send queue. The PcapHeader defines the packet length.
/// </summary>
/// <param name="packet">The packet bytes to add</param>
/// <param name="pcapHdr">The pcap header of the packet</param>
/// <returns>True if success, else false</returns>
internal bool AddInternal(byte[] packet, PcapHeader pcapHdr)
{
if (m_queue == IntPtr.Zero)
{
throw new PcapException("Can't add packet, this queue is disposed");
}
// the header defines the size to send
if (pcapHdr.CaptureLength > packet.Length)
{
string error = string.Format("pcapHdr.CaptureLength of {0} > packet.Length {1}",
pcapHdr.CaptureLength, packet.Length);
throw new System.InvalidOperationException(error);
}
//Marshal packet
IntPtr pktPtr;
pktPtr = Marshal.AllocHGlobal(packet.Length);
Marshal.Copy(packet, 0, pktPtr, packet.Length);
//Marshal header
IntPtr hdrPtr = pcapHdr.MarshalToIntPtr();
int res = SafeNativeMethods.pcap_sendqueue_queue(m_queue, hdrPtr, pktPtr);
Marshal.FreeHGlobal(pktPtr);
Marshal.FreeHGlobal(hdrPtr);
return(res != -1);
}
/// <summary>
/// Add a packet to this send queue. The PcapHeader defines the packet length.
/// </summary>
/// <param name="packet">The packet bytes to add</param>
/// <param name="pcapHdr">The pcap header of the packet</param>
/// <returns>True if success, else false</returns>
internal bool AddInternal(byte[] packet, PcapHeader pcapHdr)
{
if (m_queue == IntPtr.Zero)
{
throw new PcapException("Can't add packet, this queue is disposed");
}
// the header defines the size to send
if (pcapHdr.CaptureLength > packet.Length)
{
string error = string.Format("pcapHdr.CaptureLength of {0} > packet.Length {1}",
pcapHdr.CaptureLength, packet.Length);
throw new System.InvalidOperationException(error);
}
//Marshal packet
IntPtr pktPtr;
pktPtr = Marshal.AllocHGlobal(packet.Length);
Marshal.Copy(packet, 0, pktPtr, packet.Length);
//Marshal header
IntPtr hdrPtr = pcapHdr.MarshalToIntPtr();
int res = SafeNativeMethods.pcap_sendqueue_queue(m_queue, hdrPtr, pktPtr);
Marshal.FreeHGlobal(pktPtr);
Marshal.FreeHGlobal(hdrPtr);
return (res != -1);
}
/// <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(byte[] p, PcapHeader h)
{
if (!Opened)
throw new PcapDeviceNotReadyException("Cannot dump packet, device is not opened");
if (!DumpOpened)
throw new PcapDeviceNotReadyException("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();
SafeNativeMethods.pcap_dump(m_pcapDumpHandle, hdrPtr, pktPtr);
Marshal.FreeHGlobal(pktPtr);
Marshal.FreeHGlobal(hdrPtr);
}
