Packet (nl.sidnlabs:pcap-lib 0.2.15 API)

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 Summary

Fields
Modifier and Type	Field and Description
`protected boolean`	`doNotFragment`
`protected String`	`dst`
`protected int`	`dstPort`
`protected boolean`	`fragmented`
`protected boolean`	`fragmentFlagM`
`protected long`	`fragOffset`
`protected int`	`ipHeaderLen`
`protected long`	`ipId`
`protected int`	`ipVersion`
`protected boolean`	`lastFragment`
`protected int`	`len`
`static Packet`	`NULL`
`protected int`	`payloadLength`
`protected byte`	`protocol`
`protected int`	`reassembledFragments`
`protected int`	`reassembledTCPFragments`
`protected String`	`src`
`protected int`	`srcPort`
`protected long`	`tcpAck`
`protected boolean`	`tcpFlagAck`
`protected boolean`	`tcpFlagCwr`
`protected boolean`	`tcpFlagEce`
`protected boolean`	`tcpFlagFin`
`protected boolean`	`tcpFlagNs`
`protected boolean`	`tcpFlagPsh`
`protected boolean`	`tcpFlagRst`
`protected boolean`	`tcpFlagSyn`
`protected boolean`	`tcpFlagUrg`
`protected int`	`tcpflow`
`protected TcpHandshake`	`tcpHandshake`
`protected int`	`tcpHeaderLen`
`protected long`	`tcpSeq`
`protected int`	`tcpWindowSize`
`protected long`	`tsMicro`
`protected long`	`tsMilli`
`protected long`	`tsSec`
`protected int`	`ttl`

Constructor Summary

Constructors
Constructor and Description

Packet()

Packet(byte protocol)

Constructors
Constructor and Description
`Packet()`
`Packet(byte protocol)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`Datagram`	`getDatagram()`
`TCPFlow`	`getFlow()` Get FLOW from Client to Server
`TCPFlow`	`getReverseFlow()` Get FLOW from Server to Client
`boolean`	`isIPv4()`
`boolean`	`isIPv6()`
`long`	`nextAck()` Calculate next sequence number

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

NULL
```
public static final Packet NULL
```

len
```
protected int len
```

tsSec
```
protected long tsSec
```

tsMicro
```
protected long tsMicro
```

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
```

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
```

tcpHandshake
```
protected TcpHandshake tcpHandshake
```

Constructor Detail

Packet
```
public Packet()
```

Packet
```
public Packet(byte protocol)
```

Method Detail
- 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

Class Packet

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

NULL

len

tsSec

tsMicro

tsMilli

ipId

ttl

ipVersion

ipHeaderLen

protocol

src

dst

fragOffset

fragmented

lastFragment

doNotFragment

reassembledFragments

fragmentFlagM

reassembledTCPFragments

srcPort

dstPort

tcpflow

tcpHeaderLen

tcpSeq

tcpAck

tcpFlagNs

tcpFlagCwr

tcpFlagEce

tcpFlagUrg

tcpFlagAck

tcpFlagPsh

tcpFlagRst

tcpFlagSyn

tcpFlagFin

tcpWindowSize

payloadLength

tcpHandshake

Constructor Detail

Packet

Packet

Method Detail

getFlow

getReverseFlow

getDatagram

isIPv4

isIPv6

nextAck