Package nl.sidnlabs.pcap.packet

Class Packet

java.lang.Object
nl.sidnlabs.pcap.packet.Packet
Direct Known Subclasses:
DNSPacket, ICMPPacket
public class Packet extends Object
Packet contains a combination of IP layer and UDP/TCP/DNS layer data Fragmented IP is joined into a single Packet object Fragmented UDP is joined into a single Packet object TCP session with multiple DNS queries in a stream before the PSH or FIN will cause multiple DNS messages to get added to the Packet object.

  • Field Details

    • NULL

      public static final Packet NULL

    • len

      protected int len

    • tsMilli

      protected long tsMilli

    • ipId

      protected long ipId

    • ttl

      protected int ttl

    • ipVersion

      protected int ipVersion

    • ipHeaderLen

      protected int ipHeaderLen

    • protocol

      protected byte protocol

    • src

      protected String src

    • dst

      protected String dst

    • srcAddr

      protected InetAddress srcAddr

    • dstAddr

      protected InetAddress dstAddr

    • fragOffset

      protected long fragOffset

    • fragmented

      protected boolean fragmented

    • lastFragment

      protected boolean lastFragment

    • doNotFragment

      protected boolean doNotFragment

    • reassembledFragments

      protected int reassembledFragments

    • fragmentFlagM

      protected boolean fragmentFlagM

    • reassembledTCPFragments

      protected int reassembledTCPFragments

    • srcPort

      protected int srcPort

    • dstPort

      protected int dstPort

    • tcpflow

      protected int tcpflow

    • tcpHeaderLen

      protected int tcpHeaderLen

    • tcpSeq

      protected long tcpSeq

    • tcpAck

      protected long tcpAck

    • tcpFlagNs

      protected boolean tcpFlagNs

    • tcpFlagCwr

      protected boolean tcpFlagCwr

    • tcpFlagEce

      protected boolean tcpFlagEce

    • tcpFlagUrg

      protected boolean tcpFlagUrg

    • tcpFlagAck

      protected boolean tcpFlagAck

    • tcpFlagPsh

      protected boolean tcpFlagPsh

    • tcpFlagRst

      protected boolean tcpFlagRst

    • tcpFlagSyn

      protected boolean tcpFlagSyn

    • tcpFlagFin

      protected boolean tcpFlagFin

    • tcpWindowSize

      protected int tcpWindowSize

    • payloadLength

      protected int payloadLength

    • tcpHandshakeRTT

      protected int tcpHandshakeRTT

  • Constructor Details

    • Packet

      public Packet()

    • Packet

      public Packet(byte protocol)

  • Method Details

    • getFlow

      public TCPFlow getFlow()
      Get FLOW from Client to Server
      Returns:
      TCPFlow

    • getReverseFlow

      public TCPFlow getReverseFlow()
      Get FLOW from Server to Client
      Returns:
      TCPFlow

    • getDatagram

      public Datagram getDatagram()

    • isIPv4

      public boolean isIPv4()

    • isIPv6

      public boolean isIPv6()

    • nextAck

      public long nextAck()
      Calculate next sequence number
      Returns:
      sequencenumber expected in the next ack for this packet