verinec.netsim.firewall.packetFilter
Interface IPacketFilter

All Known Implementing Classes:

PacketFilterChain, PacketFilterRule

public interface IPacketFilter

Interface to the Packet-Filter

Version:

$Revision: 825 $

Author:

jason.hug@unifr.ch

Method Summary

IPacketAction	matchAction(Packet packet, String interfaceRef, String direction, String hostname, String simTime, ILogger eventsLog) This method receives a packet and checks in the defined packet-filter-chains if there are any rules that match.
String	toString() This returns a String representation of the Packet Filter

Method Detail

matchAction

IPacketAction matchAction(Packet packet,
                          String interfaceRef,
                          String direction,
                          String hostname,
                          String simTime,
                          ILogger eventsLog)

This method receives a packet and checks in the defined packet-filter-chains if there are any rules that match. If so the defined action is returned. If no match was observed the default policy of the packet-filter-chain is returned.

Parameters:

packet - Packet that should be inspected.

interfaceRef - From which interface the packet came from.

direction - In which direction the packet is heading. Use @link verinec.netsim.firewall.IFirewall#IN IN, @link verinec.netsim.firewall.IFirewall#OUT OUT or @link verinec.netsim.firewall.IFirewall#FORWARD FORWARD.

hostname - The hostname of the node for which the firewall is checking for.

simTime - Simulation time at which the firewall is being consulted.

eventsLog - The Verinec Simulator Event logger instance.

Returns:

The corresponding Action.

toString

String toString()

This returns a String representation of the Packet Filter

Overrides:

toString in class Object

Returns:

the a String representation of the Packet Filter