Examples of org.jnetpcap.protocol.tcpip.Tcp

org.jnetpcap.protocol.tcpip.Tcp
edia.org/wiki/Tcp_protocol @author Mark Bednarczyk @author Sly Technologies, Inc.


    InetAddress dst = InetAddress.getByName("201.1.1.1");
    InetAddress src = InetAddress.getByName("192.168.1.1");


    Ip4 ip = packet.getHeader(new Ip4());
    Tcp tcp = packet.getHeader(new Tcp());


    ip.destination(dst.getAddress());
    ip.source(src.getAddress());


    ip.checksum(ip.calculateChecksum());
    tcp.checksum(tcp.calculateChecksum());
    packet.scan(Ethernet.ID);


    System.out.println(packet);
    List<PcapIf> alldevs = new ArrayList<PcapIf>(); // Will be filled with NICs
    StringBuilder errbuf = new StringBuilder(); // For any error msgs

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    assertNotNull(errbuf.toString(), pcap);


    pcap.loop(Pcap.LOOP_INFINATE, new PcapPacketHandler<String>() {
      Ip4 ip = new Ip4();


      Tcp tcp = new Tcp();


      // public void nextPacket(PcapHeader header, JBuffer buffer, String user)
      // {
      public void nextPacket(PcapPacket packet, String user) {


        if (packet.hasHeader(tcp) == false) {
          return;
        }


        // PcapPacket packet = new PcapPacket(header, buffer);


        long f = packet.getFrameNumber();
        assertTrue("#" + f, packet.hasHeader(ip));


        final int crc =
            Checksum.pseudoTcp(packet, ip.getOffset(), tcp.getOffset());


        if (crc != 0 && tcp.checksum() != crc) {
          System.out.println(tcp);
          System.out.printf("#%d: tcp.crc=%x computed=%x\n", f, tcp.checksum(),
              crc);
          // System.out.println(ip.toHexdump());
          // System.out.println(tcp.toHexdump());
          System.exit(0);
        }

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    assertNotNull(errbuf.toString(), pcap);


    pcap.loop(Pcap.LOOP_INFINATE, new PcapPacketHandler<String>() {
      Ip6 ip = new Ip6();


      Tcp tcp = new Tcp();


      public void nextPacket(PcapPacket packet, String user) {


        if (packet.hasHeader(tcp) == false) {
          return;
        }


        // PcapPacket packet = new PcapPacket(header, buffer);


        long f = packet.getFrameNumber();
        assertTrue("#" + f, packet.hasHeader(ip));


        assertTrue("Frame #" + f, tcp.isChecksumValid());
      }


    }, null);
  }

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   */
  public void testTcpOptions() {
    JPacket packet = TestUtils.getPcapPacket(SMALL_IMAP, 1 - 1);
    System.out.println(packet.toString());
    
    Tcp tcp = packet.getHeader(new Tcp());
    Tcp.Timestamp ts = new Tcp.Timestamp();
    
    if (tcp.hasSubHeader(ts)) {
      System.out.printf("tsval=%d tsecr=%d%n", ts.tsval(), ts.tsecr());
    }
  }

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    long pid = sig.getPid();
    ProcMem pm = new ProcMem();
    long base = 0;
    final PcapPacket packet = new PcapPacket(JMemory.POINTER);
    int loop = 0;
    final Tcp tcp = new Tcp();


    final JBufferHandler<Object> handler = new JBufferHandler<Object>() {


      public void nextPacket(PcapHeader header, JBuffer buffer, Object user) {

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    ProcMem pm = new ProcMem();
    long base = 0;


    final PcapPacket packet = new PcapPacket(JMemory.POINTER);
    final PcapPacket.State state = packet.getState();
    final Tcp tcp = new Tcp();
    // final TcpScanner tcpScanner = new TcpScanner();


    final ByteBuffer byteBuffer = ByteBuffer.allocate(8 * 1024);


    final ReferenceQueue<PcapPacket> refQueue =

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Related Classes of org.jnetpcap.protocol.tcpip.Tcp

org.jnetpcap.packet.TestForMemoryLeaks

org.jnetpcap.protocol.TestTcpIp

org.jnetpcap.TestTransmitter

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