verinec.importer.analysis.traceroute
Class TRJPcap.TRJPcapObject

java.lang.Object
  java.lang.Thread
      verinec.importer.analysis.traceroute.ATraceRoute
          verinec.importer.analysis.traceroute.TRJPcap.TRJPcapObject

All Implemented Interfaces:

Runnable

Enclosing class:

TRJPcap

private static class TRJPcap.TRJPcapObject
extends ATraceRoute

This class provides a traceroute and encapsulates the algorithm. To send an receive packages, the JPCap library is used.

Author:

martial.seifriz at unifr.ch

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

private jpcap.JpcapCaptor	captor The packet captor
private long	endTime
private byte	id The identifier of this traceroute.
private Logger	log The logger for this object
private jpcap.JpcapSender	sender The packet sender
private long	startTime
private long	startTimeTotal
private String	statusMessage For logging purposes.
private InetAddress	targetIP The ip adress of the target host
private InetAddress	thisHostIP The ip adress of this host
private short	ttl
private int	unreachableHosts

Fields inherited from class verinec.importer.analysis.traceroute.ATraceRoute

logger, MAX_RETRIES, MAX_UNREACHABLE_HOSTS, maxHops, targetHost, timeOut, UNREACHABLE_HOST_IP, UNREACHABLE_HOST_NAME

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

protected

TRJPcap.TRJPcapObject(jpcap.JpcapSender sender, jpcap.JpcapCaptor captor, InetAddress thisHost) The constructor needs a sender and a captor for the packages and the ip of the host, which calls the traceroute method.

Method Summary

protected void	abort() Make the implementation abort traceroute.
protected Vector	traceRoute(int maxHops, int timeOut, String target) This method implements a classical traceroute algorithm with increasing ttl.
private String	treatTimxceed(jpcap.packet.ICMPPacket p)
private String	waitForResponse(jpcap.packet.ICMPPacket icmp) Wait for an ICMP response to our request.

Methods inherited from class verinec.importer.analysis.traceroute.ATraceRoute

isCancled

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, run, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Field Detail

log

private Logger log

The logger for this object

sender

private jpcap.JpcapSender sender

The packet sender

captor

private jpcap.JpcapCaptor captor

The packet captor

thisHostIP

private InetAddress thisHostIP

The ip adress of this host

targetIP

private InetAddress targetIP

The ip adress of the target host

id

private byte id

The identifier of this traceroute. It identifies a package for this instance.

startTimeTotal

private long startTimeTotal

startTime

private long startTime

endTime

private long endTime

unreachableHosts

private int unreachableHosts

ttl

private short ttl

statusMessage

private String statusMessage

For logging purposes.

Constructor Detail

TRJPcap.TRJPcapObject

protected TRJPcap.TRJPcapObject(jpcap.JpcapSender sender,
                                jpcap.JpcapCaptor captor,
                                InetAddress thisHost)

The constructor needs a sender and a captor for the packages and the ip of the host, which calls the traceroute method.

Parameters:

sender -

captor -

thisHost -

Method Detail

traceRoute

protected Vector traceRoute(int maxHops,
                            int timeOut,
                            String target)
                     throws TraceRouteException

This method implements a classical traceroute algorithm with increasing ttl. To send and receive of the icmp packages, the JPcap library is used. To use JPcap, super user rights are required. The method is not reentrant, that is for several traces, we must wait for each to finish before starting the next.

Specified by:

traceRoute in class ATraceRoute

Parameters:

maxHops - The maximum number of hops between the source and targed host

timeOut - The time in ms between sending and receiving of a request

target - The target host IP in string representation (xxx.xxx.xxx.xxx)

Returns:

a Vector containing the IPs as strins

Throws:

TraceRouteException

waitForResponse

private String waitForResponse(jpcap.packet.ICMPPacket icmp)

Wait for an ICMP response to our request.

Parameters:

icmp - The request packet. (For resend after time out)

Returns:

The IP the answer came from. If timed out to many times, this is ATraceRoute.UNREACHABLE_HOST_IP.

treatTimxceed

private String treatTimxceed(jpcap.packet.ICMPPacket p)

abort

protected void abort()

Make the implementation abort traceroute.

Overrides:

abort in class ATraceRoute