verinec.netsim.entities.packets
Class TCPPacket

java.lang.Object
  desmoj.core.simulator.NamedObject
      desmoj.core.simulator.ModelComponent
          desmoj.core.simulator.Schedulable
              desmoj.core.simulator.Entity
                  verinec.netsim.entities.packets.Packet
                      verinec.netsim.entities.packets.Leaf
                          verinec.netsim.entities.packets.UDPPacket
                              verinec.netsim.entities.packets.TCPPacket

All Implemented Interfaces:

Cloneable

public class TCPPacket
extends UDPPacket

A TCP Packet

Version:

$Revision:835 $

Author:

Dominik Jungo

Field Summary

private int	ack the acknowledgment number
private boolean	fin the finish flag.
private boolean	psh the push flag.
private boolean	rst the reset flag.
private int	seq the sequence number
private boolean	syn the synchronize flag.
private boolean	urg the urgent flag.
private boolean	validity validity simulates the checksum.
private int	windowsize the sender's remainig window size

Constructor Summary

TCPPacket(Model owner, IPAddress srcaddress, IPAddress dstaddress, int srcPort, int dstPort)
Creates a new TCP Packet

Method Summary

int	getAck() gets the ack field
String	getProcessorName() gets the name of the processor that will process this packet
int	getSeq() gets the seq field
int	getWindowsize() gets the sender's remainig window size
boolean	isAck() test if the ackfied is set
boolean	isFin() gets the fin bit
boolean	isPsh() gets the psh bit
boolean	isRst() gets the rst bit
boolean	isSyn() tests if the syn field is set
boolean	isUrg() gets the urg bit
boolean	isValid() gets the packets validity (simulates checksum testing)
protected Leaf	selfClone()
void	setAck(int i) sets the ack bit
void	setFin(boolean b) sets the fin bit
void	setPsh(boolean b) sets the psh bit
void	setRst(boolean b) sets the rst bit
void	setSeq(int i) sets the seq bit
void	setSyn(boolean b) sets the syn bit
void	setUrg(boolean b) sets the urg bit
void	setValidity(boolean validity) sets the validity of this packet.
void	setWindowsize(int windowsize) sets the sender's remainig window size
String	toString() This returns a String representation of the Packet.

Methods inherited from class verinec.netsim.entities.packets.UDPPacket

byteArrayToPayload, createString, getDstPort, getSrcPort, payloadToByteArray, setDstPort, setSrcPort

Methods inherited from class verinec.netsim.entities.packets.Leaf

clone, getPayload, setPayload

Methods inherited from class verinec.netsim.entities.packets.Packet

getAge, getDstAddress, getPacketID, getSrcAddress, incrAge, setAge, setDstAddress, setPacketID, setSrcAddress

Methods inherited from class desmoj.core.simulator.Entity

getPriority, isEqual, isLarger, isLargerOrEqual, isNotEqual, isSimProcess, isSmaller, isSmallerOrEqual, numQueues, schedule, scheduleAfter, scheduleBefore, setPriority

Methods inherited from class desmoj.core.simulator.Schedulable

cancel, isCurrent, isScheduled, nextEntity, nextEvent, nextSchedulable, rename, reSchedule, scheduledAt

Methods inherited from class desmoj.core.simulator.ModelComponent

current, currentEntity, currentEvent, currentModel, currentSimProcess, currentTime, debugIsOn, debugOff, debugOn, epsilon, getModel, isExperimentCompatible, isModelCompatible, sendDebugNote, sendMessage, sendTraceNote, sendWarning, skipTraceNote, skipTraceNote, traceIsOn, traceOff, traceOn

Methods inherited from class desmoj.core.simulator.NamedObject

getName, getQuotedName

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

urg

private boolean urg

the urgent flag. data will be treated immedately by application

psh

private boolean psh

the push flag. data will be treated immedately by application

rst

private boolean rst

the reset flag. breaks or refuses connection

fin

private boolean fin

the finish flag. indicator that no more data is sent, connection will be teared town

syn

private boolean syn

the synchronize flag. used for synchronisation of sequence numbers during connection set up

seq

private int seq

the sequence number

ack

private int ack

the acknowledgment number

windowsize

private int windowsize

the sender's remainig window size

validity

private boolean validity

validity simulates the checksum. either the packet fits (true) or not (false) to the ckecksum

Constructor Detail

TCPPacket

public TCPPacket(Model owner,
                 IPAddress srcaddress,
                 IPAddress dstaddress,
                 int srcPort,
                 int dstPort)

Creates a new TCP Packet

Parameters:

owner - a Model

srcaddress - source address of this packet

dstaddress - destination address of this packet

srcPort - source port

dstPort - destionation port

Method Detail

getProcessorName

public String getProcessorName()

Description copied from class: Packet

gets the name of the processor that will process this packet

Overrides:

getProcessorName in class UDPPacket

Returns:

the name of the processor that will process this packet

See Also:

UDPPacket.getProcessorName()

isAck

public boolean isAck()

test if the ackfied is set

Returns:

the ackbit

getAck

public int getAck()

gets the ack field

Returns:

the ack field

isFin

public boolean isFin()

gets the fin bit

Returns:

the fin bit

isPsh

public boolean isPsh()

gets the psh bit

Returns:

the psh bit

isRst

public boolean isRst()

gets the rst bit

Returns:

the rst bit

isSyn

public boolean isSyn()

tests if the syn field is set

Returns:

the syn field flag

getSeq

public int getSeq()

gets the seq field

Returns:

the seq field

isUrg

public boolean isUrg()

gets the urg bit

Returns:

the urg bit

setAck

public void setAck(int i)

sets the ack bit

Parameters:

i - a integer value for the ack field

setFin

public void setFin(boolean b)

sets the fin bit

Parameters:

b - a boolean value for the fin bit

setPsh

public void setPsh(boolean b)

sets the psh bit

Parameters:

b - a boolean value for the psh bit

setRst

public void setRst(boolean b)

sets the rst bit

Parameters:

b - a boolean value for the rst bit

setSeq

public void setSeq(int i)

sets the seq bit

Parameters:

i - a integer value for the seq field

setUrg

public void setUrg(boolean b)

sets the urg bit

Parameters:

b - a boolean value for the urg bit

setSyn

public void setSyn(boolean b)

sets the syn bit

Parameters:

b - a boolean value for the syn bit

toString

public String toString()

Description copied from class: Packet

This returns a String representation of the Packet.

Overrides:

toString in class UDPPacket

Returns:

the a String representation of the Packet

See Also:

Leaf.toString()

isValid

public boolean isValid()

gets the packets validity (simulates checksum testing)

Returns:

true if the checksum fits to the packet, false otherwise.

setValidity

public void setValidity(boolean validity)

sets the validity of this packet.

Parameters:

validity - the validity of this packet

getWindowsize

public int getWindowsize()

gets the sender's remainig window size

Returns:

the sender's remainig window size

setWindowsize

public void setWindowsize(int windowsize)

sets the sender's remainig window size

Parameters:

windowsize - the sender's remainig window size

selfClone

protected Leaf selfClone()

Overrides:

selfClone in class UDPPacket