Examples of org.jnetpcap.protocol.network.Ip4

org.jnetpcap.protocol.network.Ip4
IP version 4. Network layer internet protocol version 4. This is the main header file for Internet Protocol version 4. The header file defines various accessor methods for reading directly out of the Ip4 data structure found within the packet data buffer. The header is peered with the packet at appropriate offset into the buffer and data can be accessed via friendly accessor methods defined by this header, or by using JBuffer accessors. The header also performs decoding of the header, sepecifically decoding and attaching optional sub-headers to this header.
Ip4 header is the backbone of the internet.
@author Mark Bednarczyk @author Sly Technologies, Inc.

  /**
   * SKI p_test read entire suspect file.
   */
  public void SKIP_testReadEntireSuspectFile() {


    Ip4 ip = new Ip4();
    for (PcapPacket packet : TestUtils.getIterable(BUG_FILE)) {
      try {
        if (packet.getFrameNumber() == 15) {
          System.out.println(packet);
          System.out.println(packet

View Full Code Here

        " 01 00 5e 00  00 16 00 03  ff 2a 7a 6c  08 00 46 00"
            + " 00 28 d7 04  00 00 01 02  ac fa c0 a8  00 12 e0 00"
            + " 00 16 94 04  00 00 22 00  ea 03 00 00  00 01 04 00"
            + " 00 00 ef ff  ff fa 00 00  00 00 00 00             ";
    JMemoryPacket packet = new JMemoryPacket(JProtocol.ETHERNET_ID, data);
    Ip4 ip = new Ip4();
    Ip4.RouterAlert alert = new Ip4.RouterAlert();
    
    assertTrue(packet.hasHeader(ip));
    assertTrue(ip.hasSubHeader(alert));


    System.out.println(alert);
  }

View Full Code Here

    System.out.println(packet.toHexdump());
    packet.setUByte(14 + 9, 0x11); //UDP
    System.out.println(packet.toHexdump());
    packet.scan(JProtocol.ETHERNET_ID);
    Ethernet eth = packet.getHeader(new Ethernet());
    Ip4 ip = packet.getHeader(new Ip4());
    Udp udp = packet.getHeader(new Udp());
//    udp.transferFrom(getFakeData(1460)); //Generate Random bytes
    eth.destination(new byte[] {(byte) 0xaa, 0x0c, 0x08, 11, 22, 33});
    eth.source(new byte[] {(byte) 0xaa, 0x0c, 0x08, 11, 22, 34});
    ip.flags(0);
    ip.tos(0);
    ip.source(new byte[] {(byte) 192, (byte) 168, 18, (byte) 218});
    ip.setByteArray(16, new byte[] {(byte) 192,(byte) 168, 18, (byte) 219});
    
    ip.checksum(0);
    System.out.printf("crc=0x%X ip.len=%d\n", Checksum.inChecksum(ip, 0, ip.size()), ip.size());
    ip.checksum(Checksum.inChecksum(ip, 0, ip.size()));
    System.out.println(packet.getState().toDebugString());
    
    System.out.printf("crc=0x%X\n", Checksum.inChecksum(ip, 0, ip.size()));
    
    JBuffer b = new JBuffer(4);
    
    b.order(ByteOrder.LITTLE_ENDIAN);
    b.setUInt(0, 0x14010100);

View Full Code Here

   * Test ip4 cr c16 pkt1.
   */
  public void testIp4CRC16Pkt1() {


    JPacket packet = super.getPcapPacket(TestUtils.L2TP, 0);
    Ip4 ip = packet.getHeader(new Ip4());


    int computed = Checksum.inChecksum(ip, 0, ip.size());


    System.out.printf("1chunk=%x\n", computed);
    System.out.printf("shoudbe=%x checksum=%x\n", Checksum.inChecksumShouldBe(
        ip.checksum(), computed), ip.checksum());


    assertTrue(ip.isChecksumValid());
  }

View Full Code Here

   * Test ip4 cr c16 pkt2.
   */
  public void testIp4CRC16Pkt2() {


    JPacket packet = super.getPcapPacket(TestUtils.L2TP, 1);
    Ip4 ip = packet.getHeader(new Ip4());


    assertEquals(ip.calculateChecksum(), ip.checksum());
  }

View Full Code Here

   * Test ip4 cr c16 pkt50.
   */
  public void testIp4CRC16Pkt50() {


    JPacket packet = super.getPcapPacket(TestUtils.L2TP, 46 - 1);
    Ip4 ip = packet.getHeader(new Ip4());


    int crc;
    assertEquals(ip.checksum(), ip.calculateChecksum());


    // System.out.printf("ip.crc=%x computed=%x\n", ip.checksum(), crc);
  }

View Full Code Here

   * 
   * @throws InterruptedException
   *           the interrupted exception
   */
  public void testIp4CRC16EntireFile() throws InterruptedException {
    Ip4 ip = new Ip4();
    for (JPacket packet : super.getIterable(TestUtils.L2TP)) {
      Thread.sleep(10);
      long f = packet.getFrameNumber() + 1;
      assertTrue(packet.hasHeader(ip));


      assertEquals(20, ip.size());
      final int crc = ip.calculateChecksum();


      if (ip.checksum() != crc) {
        try {
          System.out.println(packet.getState().toDebugString());
          System.out.println(packet);
        } catch (Exception e) {
          System.out.println(packet.getState().toDebugString());
          e.printStackTrace();
        }
        System.out
            .printf("#%d: ip.crc=%x computed=%x\n", f, ip.checksum(), crc);
        System.out.println(ip.toHexdump());
      }


      assertEquals("Frame #" + f, ip.checksum(), crc);
    }
  }

View Full Code Here


    assertNotNull(pcap);


    pcap.dispatch(Pcap.DISPATCH_BUFFER_FULL, JProtocol.ETHERNET_ID,
        new PcapPacketHandler<Pcap>() {
          Ip4 ip = new Ip4();


          int i = 0, j = 0;


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


            // if (i++ % 1 == 0) {
//            packet = new PcapPacket(packet);
            j++;
            // }


            long f = packet.getFrameNumber();
            assertTrue("#" + f, packet.hasHeader(ip));
            System.out.println(packet.getState().toDebugString());


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


        }, null);
  }

View Full Code Here

    List<PcapPacket> l1 = getPacketList(L2TP);
    List<PcapPacket> l2 = getPacketList(L2TP);


    assertEquals(l1.size(), l2.size());


    Ip4 ip1 = new Ip4();
    Ip4 ip2 = new Ip4();


    for (int i = 0; i < l1.size(); i++) {
      PcapPacket p1 = l1.get(i);
      PcapPacket p2 = l2.get(i);


      int c1 = p1.getHeader(ip1).calculateChecksum();
      int c2 = p2.getHeader(ip2).calculateChecksum();


      System.out.println(ip1);
      System.out.println(ip2);


      assertEquals(c1, ip1.checksum());
      assertEquals(c2, ip2.checksum());


      assertEquals(c1, c2);
    }


  }

View Full Code Here

    if (pcap == null) {
      throw new IOException(errbuf.toString());
    }


    assertTrue(pcap.loop(Pcap.LOOP_INFINATE, new PcapPacketHandler<Pcap>() {
      Ip4 ip1 = new Ip4();


      Ip4 ip2 = new Ip4();


      int i = 0;


      public void nextPacket(PcapPacket p1, Pcap user) {
        i++;
        p1.getHeader(ip1);
        int c1 = ip1.calculateChecksum();


        PcapPacket p2 = new PcapPacket(p1);
        p2.getHeader(ip2);


        int c2 = ip2.calculateChecksum();


        if (c1 != c2) {
          System.out.printf("#%d crc_before=%x crc_after=%x\n", i, c1, c2);
          System.out.printf(
              "P1: %s\nheader1=%s\n\nstate1=%s\npacket1=%s\n\nip1=%s\n", p1
                  .toHexdump(), p1.getCaptureHeader().toDebugString(), p1
                  .getState().toDebugString(), p1.toDebugString(), ip1
                  .toDebugString());


          System.out.println("---------------------------");


          System.out.printf(
              "P2: %s\nheader2=%s\n\nstate2=%s\npacket2=%s\n\nip2=%s\n\n", p2
                  .toHexdump(), p2.getCaptureHeader().toDebugString(), p2
                  .getState().toDebugString(), p2.toDebugString(), ip2
                  .toDebugString());


          System.out.println("p1-p2.memory.diff=\n"
              + FormatUtils.hexdump(DataUtils.diff(p1, p2)));

View Full Code Here

0 1 2

TOP

Related Classes of org.jnetpcap.protocol.network.Ip4

org.jnetpcap.bugs.Bug2818101_RtpHeaderLength_Invalid

org.jnetpcap.bugs.Bug2832692_null_ptr_in_hasHeader

org.jnetpcap.bugs.Bug2878768_jmemory_packet_int

org.jnetpcap.header.TestAnotatedDefinition

org.jnetpcap.header.TestHttp

org.jnetpcap.header.TestIcmp

org.jnetpcap.header.TestSubHeader

org.jnetpcap.packet.TestJHeader

org.jnetpcap.protocol.TestTcpIp

org.jnetpcap.TestTransmitter

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.