/// <summary>
/// Add a packet to this send queue.
/// </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 Add(byte[] packet, PcapUnmanagedStructures.pcap_pkthdr pcapHdr)
{
if (m_queue == IntPtr.Zero)
{
throw new PcapException("Can't add packet, this queue is disposed");
}
if (pcapHdr.caplen == 0)
{
pcapHdr.caplen = (uint)packet.Length;//set the length in the header field
}
//Marshal packet
IntPtr pktPtr;
pktPtr = Marshal.AllocHGlobal(packet.Length);
Marshal.Copy(packet, 0, pktPtr, packet.Length);
//Marshal header
IntPtr hdrPtr;
hdrPtr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(PcapUnmanagedStructures.pcap_pkthdr)));
Marshal.StructureToPtr(pcapHdr, hdrPtr, true);
int res = SafeNativeMethods.pcap_sendqueue_queue(m_queue, hdrPtr, pktPtr);
Marshal.FreeHGlobal(pktPtr);
Marshal.FreeHGlobal(hdrPtr);
return(res != -1);
}
protected virtual Packet MarshalPacket(IntPtr /* pcap_pkthdr* */ header, IntPtr data)
{
Packet p;
PcapUnmanagedStructures.pcap_pkthdr pkt_header =
(PcapUnmanagedStructures.pcap_pkthdr)Marshal.PtrToStructure(header,
typeof(PcapUnmanagedStructures.pcap_pkthdr));
byte[] pkt_data = new byte[pkt_header.caplen];
Marshal.Copy(data, pkt_data, 0, (int)pkt_header.caplen);
p = Packets.PacketFactory.dataToPacket(PcapDataLink, pkt_data,
new Packets.Util.Timeval((ulong)pkt_header.ts.tv_sec,
(ulong)pkt_header.ts.tv_usec));
p.pcapHeader = new PcapHeader(pkt_header);
return(p);
}
internal PcapStatistics(Packets.Packet p)
{
this.m_pktHdr = p.PcapHeader.m_pcap_pkthdr;
this.m_pktData = p.Bytes;
}
/// <summary>
/// Constructs a new Pcap Statistics strcuture
/// </summary>
/// <param name="pktHdr">Time value as PCAP_PKTHDR</param>
/// <param name="pktData">Statistics values as PCAP_PKTDATA</param>
internal PcapStatistics(PcapUnmanagedStructures.pcap_pkthdr pktHdr, PcapUnmanagedStructures.PCAP_PKTDATA pktData)
{
this.m_pktHdr = pktHdr;
this.m_pktData = pktData.bytes;
}
internal PcapStatistics(Packets.Packet p)
{
this.m_pktHdr = p.PcapHeader.m_pcap_pkthdr;
this.m_pktData = p.Bytes;
}
/// <summary>
/// Constructs a new Pcap Statistics strcuture
/// </summary>
/// <param name="pktHdr">Time value as PCAP_PKTHDR</param>
/// <param name="pktData">Statistics values as PCAP_PKTDATA</param>
internal PcapStatistics(PcapUnmanagedStructures.pcap_pkthdr pktHdr, PcapUnmanagedStructures.PCAP_PKTDATA pktData)
{
this.m_pktHdr = pktHdr;
this.m_pktData = pktData.bytes;
}
/// <summary>
/// Constructs a new PcapHeader
/// </summary>
/// <param name="m_pcap_pkthdr">The underlying pcap_pkthdr structure</param>
internal PcapHeader( PcapUnmanagedStructures.pcap_pkthdr m_pcap_pkthdr )
{
this.m_pcap_pkthdr = m_pcap_pkthdr;
}
/// <summary>
/// Constructs a new PcapHeader
/// </summary>
public PcapHeader()
{
m_pcap_pkthdr = new PcapUnmanagedStructures.pcap_pkthdr();
}
/// <summary>
/// Constructs a new PcapHeader
/// </summary>
/// <param name="m_pcap_pkthdr">The underlying pcap_pkthdr structure</param>
internal PcapHeader(PcapUnmanagedStructures.pcap_pkthdr m_pcap_pkthdr)
{
this.m_pcap_pkthdr = m_pcap_pkthdr;
}
/// <summary>
/// Constructs a new PcapHeader
/// </summary>
public PcapHeader()
{
m_pcap_pkthdr = new PcapUnmanagedStructures.pcap_pkthdr();
}