simnet
Class Traceroute

java.lang.Object
  java.lang.Thread
      simnet.Application
          simnet.Traceroute

All Implemented Interfaces:

BPFConsumer, Pluggable, PlugoutListener, java.lang.Runnable, SimnetWindowListener

public class Traceroute

extends Application

implements BPFConsumer, Pluggable

An application that performs traceroutes.

Field Summary

private BPF	bpf
private int	last_ipid The ipid of the last packet we sent out
private boolean	noresponse Variable that is set when no ICMP Time Exceeded response is received
private int	resp_src the source of the response
private boolean	running

Fields inherited from class simnet.Application

appid, appstart, frame, initialized, node, NODE_ID, pid, random, sim, win

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Traceroute()

Method Summary

protected boolean	check(ICMP_Packet icmpp) Check if this packet was in response to our last packet.
void	inBPF(int bpf_id, IP_Packet ip_packet) Processes incoming IP packets from the previously loaded BPF rule.
boolean	prePlugout(java.lang.Object replacement) A traceroute application can only be removed if it is not currently tracerout'ing
void	tr(java.lang.Integer dest) Performs a traceroute to the specified Node.
void	tr(java.lang.String destination) Performs a traceroute to the specified Node.
void	traceroute(int dest) Performs a traceroute to the specified Node.
void	traceroute(java.lang.Integer destination) Performs a traceroute to the specified Node.
void	traceroute(java.lang.String destination) Performs a traceroute to the specified Node.

Methods inherited from class simnet.Application

closeWindow, customInit, finalize, getTitleString, initialize, plugoutNotification, printout, printout, processWindowCommand, rawOut, run, window

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getContextClassLoader, getName, getPriority, getThreadGroup, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setName, setPriority, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Field Detail

running

private boolean running

noresponse

private boolean noresponse

Variable that is set when no ICMP Time Exceeded response is received

resp_src

private int resp_src

the source of the response

bpf

private BPF bpf

last_ipid

private int last_ipid

The ipid of the last packet we sent out

Constructor Detail

Traceroute

public Traceroute()

Method Detail

tr

public void tr(java.lang.Integer dest)

Performs a traceroute to the specified Node. Same as traceroute(int) Called direcly from the UserInterface to provide an shorter traceroute command.

Parameters:

dest - the ID of destination node

tr

public void tr(java.lang.String destination)

Performs a traceroute to the specified Node. Same as traceroute(int) Called direcly from the UserInterface to provide an shorter traceroute command that takes Node names as argument.

Parameters:

destination - the ID of destination node

traceroute

public void traceroute(java.lang.String destination)

Performs a traceroute to the specified Node. Same as traceroute(int) Called direcly from the UserInterface to provide a traceroute command that takes Node names as argument.

Parameters:

destination - the ID of destination node

traceroute

public void traceroute(java.lang.Integer destination)

Performs a traceroute to the specified Node. Same as traceroute(int) Called direcly from the UserInterface to provide a traceroute command.

Parameters:

destination - the ID of destination node

traceroute

public void traceroute(int dest)

Performs a traceroute to the specified Node.

Parameters:

dest - the ID of destination node

prePlugout

public boolean prePlugout(java.lang.Object replacement)

A traceroute application can only be removed if it is not currently tracerout'ing

Specified by:

prePlugout in interface Pluggable

Returns:

if this object can now be removed (was the operation sucessful)

inBPF

public void inBPF(int bpf_id,
                  IP_Packet ip_packet)

Processes incoming IP packets from the previously loaded BPF rule.

Specified by:

inBPF in interface BPFConsumer

Parameters:

bpf_id - the ID of the BPF rule that the ip_packet matched

ip_packet - incoming IP packet

check

protected boolean check(ICMP_Packet icmpp)

Check if this packet was in response to our last packet.