net.onrc.openvirtex.packet

Class TCP

java.lang.Object

net.onrc.openvirtex.packet.BasePacket

net.onrc.openvirtex.packet.TCP

All Implemented Interfaces:

IPacket

public class TCP
extends BasePacket

Author:

shudong.zhou@bigswitch.com

Field Summary

Fields

Modifier and Type	Field and Description
protected int	acknowledge
protected short	checksum
protected byte	dataOffset
protected short	destinationPort
protected short	flags
protected byte[]	options
protected int	sequence
protected short	sourcePort
protected short	urgentPointer
protected short	windowSize

Fields inherited from class net.onrc.openvirtex.packet.BasePacket

parent, payload

Constructor Summary

Constructors

Constructor and Description
TCP()

Method Summary

Methods

Modifier and Type	Method and Description
IPacket	deserialize(byte[] data, int offset, int length) Deserializes this packet layer and all possible payloads.
boolean	equals(Object obj)
int	getAcknowledge()
short	getChecksum()
byte	getDataOffset()
short	getDestinationPort()
short	getFlags()
byte[]	getOptions()
int	getSequence()
short	getSourcePort()
short	getTcpChecksum()
short	getUrgentPointer(short urgentPointer)
short	getWindowSize()
int	hashCode()
void	resetChecksum() Reset any checksums as needed, and call resetChecksum on all parents.
byte[]	serialize() Serializes the packet.
TCP	setAcknowledge(int ack)
TCP	setChecksum(short checksum)
TCP	setDataOffset(byte offset)
TCP	setDestinationPort(short destinationPort)
TCP	setFlags(short flags)
TCP	setOptions(byte[] options)
TCP	setSequence(int seq)
TCP	setSourcePort(short sourcePort)
TCP	setTcpChecksum(short checksum)
TCP	setUrgentPointer(short urgentPointer)
TCP	setWindowSize(short windowSize)

Methods inherited from class net.onrc.openvirtex.packet.BasePacket

clone, getParent, getPayload, setParent, setPayload

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Detail

sourcePort

protected short sourcePort

destinationPort

protected short destinationPort

sequence

protected int sequence

acknowledge

protected int acknowledge

dataOffset

protected byte dataOffset

flags

protected short flags

windowSize

protected short windowSize

checksum

protected short checksum

urgentPointer

protected short urgentPointer

options

protected byte[] options

Constructor Detail

TCP

public TCP()

Method Detail

getSourcePort

public short getSourcePort()

Returns:

the sourcePort

setSourcePort

public TCP setSourcePort(short sourcePort)

Parameters:

sourcePort - the sourcePort to set

getDestinationPort

public short getDestinationPort()

Returns:

the destinationPort

setDestinationPort

public TCP setDestinationPort(short destinationPort)

Parameters:

destinationPort - the destinationPort to set

getChecksum

public short getChecksum()

Returns:

the checksum

getSequence

public int getSequence()

setSequence

public TCP setSequence(int seq)

getAcknowledge

public int getAcknowledge()

setAcknowledge

public TCP setAcknowledge(int ack)

getDataOffset

public byte getDataOffset()

setDataOffset

public TCP setDataOffset(byte offset)

getFlags

public short getFlags()

setFlags

public TCP setFlags(short flags)

getWindowSize

public short getWindowSize()

setWindowSize

public TCP setWindowSize(short windowSize)

getTcpChecksum

public short getTcpChecksum()

setTcpChecksum

public TCP setTcpChecksum(short checksum)

resetChecksum

public void resetChecksum()

Description copied from interface: IPacket

Reset any checksums as needed, and call resetChecksum on all parents.

Specified by:

resetChecksum in interface IPacket

Overrides:

resetChecksum in class BasePacket

getUrgentPointer

public short getUrgentPointer(short urgentPointer)

setUrgentPointer

public TCP setUrgentPointer(short urgentPointer)

getOptions

public byte[] getOptions()

setOptions

public TCP setOptions(byte[] options)

setChecksum

public TCP setChecksum(short checksum)

Parameters:

checksum - the checksum to set

serialize

public byte[] serialize()

Serializes the packet. Will compute and set the following fields if they are set to specific values at the time serialize is called: -checksum : 0 -length : 0

Returns:

a byte[] containing this packet and payloads

hashCode

public int hashCode()

Overrides:

hashCode in class BasePacket

equals

public boolean equals(Object obj)

Overrides:

equals in class BasePacket

deserialize

public IPacket deserialize(byte[] data,
                  int offset,
                  int length)

Description copied from interface: IPacket

Deserializes this packet layer and all possible payloads.

offset - offset to start deserializing from

length - length of the data to deserialize

Returns:

the deserialized data