Examples of org.jnetpcap.packet.JPacket$State

org.jnetpcap.packet.JPacket
map of presence of headers char *pkt_data; // packet data buffer int32_t pkt_header_count; // total number of headers found // Keep track of how many instances of each header we have uint8_t pkt_instance_counts[MAX_ID_COUNT]; header_t pkt_headers[]; // One per header + 1 more for payload } packet_t; and struct header_t
```
 typedef struct header_t { int32_t hdr_id; // header ID uint32_t hdr_offset; // offset into the packet_t->data buffer int32_t hdr_length; // length of the header in packet_t->data buffer } header_t; 
```
The methods in this State provide 3 sets of functions. Looking up global state of the packet found in packet_state_t structure, looking up header information in struct header_t by header ID retrieved from JRegistry and instance numbers, looking up header information by direct indexes into native maps and arrays. Instance numbers specify which instance of the header, if more than 1 exists in a packet. For example if there is a packet with 2 Ip4 headers such as
```
 Ethernet->Ip4->Snmp->Ip4  or  Ethernet->Ip4->Ip4 (IP tunneled IP) 
```
the first Ip4 header is instance 0 and the second Ip4 header is instance 2. You can use the method {@link #getInstanceCount(int)} to learn how manyinstance headers exists. That information is stored in the packet_state_t structure for efficiency.
@author Mark Bednarczyk @author Sly Technologies, Inc.

   *           the registry header errors
   */
  public void SKIPtestRip1() throws RegistryHeaderErrors {
    final int RIP1_ID = JRegistry.register(Rip1.class);
    
    JPacket packet = super.getPcapPacket(RIP_V1, 1 - 1);
    
    assertTrue(packet.hasHeader(RIP1_ID));
    
    Rip1 rip = new Rip1();
    
    System.out.println(packet);

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(

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  /**
   * 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());
  }

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  /**
   * 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


  /**
   * Test ip4 fragment flag directly.
   */
  public void testIp4FragmentFlagDirectly() {
    JPacket packet = TestUtils.getPcapPacket(TestUtils.REASEMBLY, 1 - 1);
    Ethernet eth = new Ethernet();


    if (packet.hasHeader(eth)) {
      // System.out.println(eth);
      // System.out.printf("flags=%x\n", eth.getState().getFlags());
      assertNotSame(JHeader.State.FLAG_HEADER_FRAGMENTED, (eth.getState()
          .getFlags() & JHeader.State.FLAG_HEADER_FRAGMENTED));
    }


    Ip4 ip = new Ip4();
    if (packet.hasHeader(ip)) {
      // System.out.println(ip);
      // System.out.printf("flags=%x\n", ip.getState().getFlags());
      assertEquals(JHeader.State.FLAG_HEADER_FRAGMENTED, (ip.getState()
          .getFlags() & JHeader.State.FLAG_HEADER_FRAGMENTED));
    }


    Icmp icmp = new Icmp();
    if (packet.hasHeader(icmp)) {
      // System.out.println(icmp);
      // System.out.printf("flags=%x\n", icmp.getState().getFlags());
      assertEquals(JHeader.State.FLAG_HEADER_FRAGMENTED, (icmp.getState()
          .getFlags() & JHeader.State.FLAG_HEADER_FRAGMENTED));
    }

View Full Code Here


  /**
   * Test j header is fragmented.
   */
  public void testJHeaderIsFragmented() {
    JPacket packet = TestUtils.getPcapPacket(TestUtils.REASEMBLY, 1 - 1);
    Ethernet eth = new Ethernet();


    if (packet.hasHeader(eth)) {
      assertFalse(eth.isFragmented());
    }


    Ip4 ip = new Ip4();
    if (packet.hasHeader(ip)) {
      assertTrue(ip.isFragmented());
    }


    Icmp icmp = new Icmp();
    if (packet.hasHeader(icmp)) {
      assertTrue(ip.isFragmented());
    }


  }

View Full Code Here

  
  /**
   * Test tcp options.
   */
  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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            + "31 04 69 61  67 72 03 6e  65 74 00 00  01 00 01 c0"
            + "17 00 06 00  01 00 00 2a  30 00 2f 05  70 64 6e 73"
            + "31 08 75 6c  74 72 61 64  6e 73 c0 1c  07 6b 67 72"
            + "61 75 65 72  c0 17 77 bf  dd f5 00 00  2a 30 00 00"
            + "0e 10 00 27  8d 00 00 01  51 80" + "";
    final JPacket packet = new JMemoryPacket(JProtocol.ETHERNET_ID, data);


    // final String TEMP_CAP = "tests/temp.pcap";
    // final File TEMP_CAP_FILE = new File(TEMP_CAP);
    // if (TEMP_CAP_FILE.exists()) {
    // TEMP_CAP_FILE.delete();
    // }
    // FormatUtils.createPcapFile(TEMP_CAP, data);


    // System.out.println(packet);
    System.out.println(packet.getHeader(new Ethernet()));
    System.out.println(packet.getHeader(new Ip4()));
    System.out.println(packet.getHeader(new Udp()));
    System.out.println(packet.getState().toDebugString());


  }

View Full Code Here

  /**
   * Test rtp heuristics.
   */
  public void testRtpHeuristics() {


    JPacket packet = super.getPcapPacket(SIP_G711, 499 - 1);


    // System.out.println(JRegistry.toDebugString());
    System.out.println(packet.getState().toDebugString());
    System.out.println(packet);
    System.out.flush();


    assertNotNull(packet);
    assertTrue(packet.hasHeader(JProtocol.RTP_ID));
  }

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    Ip4.Timestamp ts = new Ip4.Timestamp();
    Ip4.LooseSourceRoute lsroute = new Ip4.LooseSourceRoute();
    Ip4.StrictSourceRoute ssroute = new Ip4.StrictSourceRoute();
    Ip4.RecordRoute record = new Ip4.RecordRoute();


    JPacket packet =
        TestUtils.getPcapPacket("tests/test-icmp-recordroute-opt.pcap", 0);


    JFormatter out = new TextFormatter();
    out.format(packet);
    
    assertNotNull(packet);
    assertTrue(packet.hasHeader(ip));
    assertTrue(ip.hasSubHeaders());
    assertFalse(ip.hasSubHeader(lsroute));
    assertFalse(ip.hasSubHeader(ssroute));
    assertFalse(ip.hasSubHeader(ts));
    
    assertTrue(ip.hasSubHeader(record));
    assertEquals(9, record.addressCount());
    
    byte[] b = record.address(0);
    assertNotNull(b);
    assertEquals(4, b.length);
    assertEquals(-64, b[0]); // 192 in unsinged int
    assertEquals(-88, b[1]); // 168 in unsigned int
    assertEquals(1, b[2]);   // 1
    assertEquals(13, b[3]);  // 13
    
    assertNotNull(packet);
    assertTrue(packet.hasHeader(ip));
    assertTrue(ip.hasSubHeaders());
    assertFalse(ip.hasSubHeader(lsroute));
    assertFalse(ip.hasSubHeader(ssroute));
    assertFalse(ip.hasSubHeader(ts));

View Full Code Here

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