org.jnetpcap.protocol.tcpip
Class TcpSequencer

java.lang.Object
  org.jnetpcap.packet.analysis.AbstractAnalyzer
      org.jnetpcap.packet.analysis.AbstractSequencer
          org.jnetpcap.protocol.tcpip.TcpSequencer

All Implemented Interfaces:

AnalyzerListener<TcpStreamEvent>, FragmentSequencer, JAnalyzer

public class TcpSequencer
extends AbstractSequencer
implements AnalyzerListener<TcpStreamEvent>

Groups related tcp segments in contigues sequences. Sequences analyzes tcp segments, rearranges them and groups them into related segments. Notifies its listeners using events which can further process the grouped segments. For example TcpAssembler uses these sequences to reassemble the separate tcp segements into a single buffer.

Author:

Mark Bednarczyk, Sly Technologies, Inc.

Field Summary

Fields inherited from class org.jnetpcap.packet.analysis.AbstractSequencer

fragmentation, fragSupport

Fields inherited from interface org.jnetpcap.packet.analysis.FragmentSequencer

DEFAULT_FRAGMENT_TIMEOUT, reassembly

Constructor Summary

TcpSequencer()

Method Summary

java.util.List<JAnalysis>	generateInfo(FragmentSequence sequence) Allows an analyzer to generate analyzer specific information to be displayed by formatters.
void	processAnalyzerEvent(TcpStreamEvent evt)
boolean	processPacket(JPacket packet)
void	setConsume(boolean consume)
void	setFragmentationBoundary(int hash, long start, long length)
void	setFragmentationBoundary(JPacket packet, long length)

Methods inherited from class org.jnetpcap.packet.analysis.AbstractSequencer

addFragmentationListener, getProcessingTime, getSequence, removeFragmentationListener, removeSequence, setProcessingTime, timeout

Methods inherited from class org.jnetpcap.packet.analysis.AbstractAnalyzer

consumePacket, getInQueue, getOutQueue, getPriority, getTimeoutQueue, hold, processHeaders, processHeaders, release, setParent

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jnetpcap.packet.analysis.JAnalyzer

consumePacket, getInQueue, getOutQueue, getPriority, getTimeoutQueue, hold, processHeaders, processHeaders, release, setParent

Constructor Detail

TcpSequencer

public TcpSequencer()

Method Detail

generateInfo

public java.util.List<JAnalysis> generateInfo(FragmentSequence sequence)

Description copied from interface: FragmentSequencer

Allows an analyzer to generate analyzer specific information to be displayed by formatters.

Specified by:

generateInfo in interface FragmentSequencer

Returns:

list typically made up of AnalysisInfo objects

processAnalyzerEvent

public void processAnalyzerEvent(TcpStreamEvent evt)

Specified by:

processAnalyzerEvent in interface AnalyzerListener<TcpStreamEvent>

processPacket

public boolean processPacket(JPacket packet)

Specified by:

processPacket in interface JAnalyzer

Specified by:

processPacket in class AbstractAnalyzer

setFragmentationBoundary

public void setFragmentationBoundary(int hash,
                                     long start,
                                     long length)

setFragmentationBoundary

public void setFragmentationBoundary(JPacket packet,
                                     long length)

setConsume

public void setConsume(boolean consume)

Parameters:

b -