eu.emi.security.authn.x509.helpers.proxy

Class IPAddressHelper

java.lang.Object

eu.emi.security.authn.x509.helpers.proxy.IPAddressHelper

public class IPAddressHelper
extends Object

Helpers for IP addresses comparison. Mostly the code from Tigran's ipmatcher library (GNU license).

Author:

Tigran Mkrtchyan, K. Benedyczak

Constructor Summary

Constructors

Constructor and Description
IPAddressHelper()

Method Summary

Modifier and Type	Method and Description
static boolean	isWithinAddressSpace(byte[] ipBytes, byte[] ipAddressWithNetmask) Tests whether the ipAddress is within the address space defined by the ipAddressWithNetmask.

Methods inherited from class java.lang.Object

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

Constructor Detail

IPAddressHelper

public IPAddressHelper()

Method Detail

isWithinAddressSpace

public static boolean isWithinAddressSpace(byte[] ipBytes,
                                           byte[] ipAddressWithNetmask)

Tests whether the ipAddress is within the address space defined by the ipAddressWithNetmask.

Parameters:

ipBytes - The IP address bytes to compare against the address space.

ipAddressWithNetmask - The 8 (IPv4) or 32 (IPv6) byte array containing in the first half the base IP address bytes and in the second half the netmask bytes.

Returns:

true if ip matches subnet.