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ce996bd3
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Simon Cornelius P. Umacob
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<?php
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523855b0
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Scott Ullrich
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/*
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b6aed0e1
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Scott Ullrich
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pfSense_MODULE: utils
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523855b0
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Scott Ullrich
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*/
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ce996bd3
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Simon Cornelius P. Umacob
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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/**
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* This file contains the implementation of the Net_IPv6 class
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*
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* PHP versions 4 and 5
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*
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* LICENSE: This source file is subject to the New BSD license, that is
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* available through the world-wide-web at
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* http://www.opensource.org/licenses/bsd-license.php
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* If you did not receive a copy of the new BSDlicense and are unable
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* to obtain it through the world-wide-web, please send a note to
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* license@php.net so we can mail you a copy immediately
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*
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* @category Net
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* @package Net_IPv6
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* @author Alexander Merz <alexander.merz@web.de>
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* @copyright 2003-2005 The PHP Group
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* @license http://www.opensource.org/licenses/bsd-license.php
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* @version CVS: $Id: IPv6.inc,v 1.2 2008/11/26 03:54:43 sumacob Exp $
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* @link http://pear.php.net/package/Net_IPv6
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*/
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// {{{ constants
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/**
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* Error message if netmask bits was not found
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* @see isInNetmask
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*/
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define("NET_IPV6_NO_NETMASK_MSG", "Netmask length not found");
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/**
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* Error code if netmask bits was not found
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* @see isInNetmask
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*/
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define("NET_IPV6_NO_NETMASK", 10);
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/**
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* Address Type: Unassigned (RFC 1884, Section 2.3)
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* @see getAddressType()
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*/
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define("NET_IPV6_UNASSIGNED", 1);
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/**
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* Address Type: Reserved (RFC 1884, Section 2.3)
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* @see getAddressType()
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*/
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define("NET_IPV6_RESERVED", 11);
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/**
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* Address Type: Reserved for NSAP Allocation (RFC 1884, Section 2.3)
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* @see getAddressType()
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*/
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define("NET_IPV6_RESERVED_NSAP", 12);
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/**
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* Address Type: Reserved for IPX Allocation (RFC 1884, Section 2.3)
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* @see getAddressType()
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*/
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define("NET_IPV6_RESERVED_IPX", 13);
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/**
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* Address Type: Reserved for Geographic-Based Unicast Addresses
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* (RFC 1884, Section 2.3)
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* @see getAddressType()
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*/
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define("NET_IPV6_RESERVED_UNICAST_GEOGRAPHIC", 14);
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/**
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* Address Type: Provider-Based Unicast Address (RFC 1884, Section 2.3)
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* @see getAddressType()
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*/
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define("NET_IPV6_UNICAST_PROVIDER", 22);
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/**
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* Address Type: Multicast Addresses (RFC 1884, Section 2.3)
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* @see getAddressType()
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*/
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define("NET_IPV6_MULTICAST", 31);
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/**
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* Address Type: Link Local Use Addresses (RFC 1884, Section 2.3)
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* @see getAddressType()
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*/
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define("NET_IPV6_LOCAL_LINK", 42);
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/**
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* Address Type: Link Local Use Addresses (RFC 1884, Section 2.3)
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* @see getAddressType()
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*/
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define("NET_IPV6_LOCAL_SITE", 43);
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/**
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* Address Type: address can not assigned to a specific type
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* @see getAddressType()
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*/
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define("NET_IPV6_UNKNOWN_TYPE", 1001);
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// }}}
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// {{{ Net_IPv6
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/**
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* Class to validate and to work with IPv6 addresses.
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*
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* @category Net
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* @package Net_IPv6
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* @copyright 2003-2005 The PHP Group
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* @license http://www.opensource.org/licenses/bsd-license.php
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* @version $Release$
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* @link http://pear.php.net/package/Net_IPv6
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* @author Alexander Merz <alexander.merz@web.de>
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* @author <elfrink at introweb dot nl>
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* @author Josh Peck <jmp at joshpeck dot org>
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*/
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class Net_IPv6 {
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// {{{ removeNetmaskBits()
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/**
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* Removes a possible existing netmask specification at an IP addresse.
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*
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* @param String $ip the (compressed) IP as Hex representation
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*
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* @return String the IP without netmask length
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* @since 1.1.0
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* @access public
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* @static
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*/
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function removeNetmaskSpec($ip)
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{
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$addr = $ip;
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if (false !== strpos($ip, '/')) {
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$elements = explode('/', $ip);
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if (2 == count($elements)) {
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$addr = $elements[0];
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}
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}
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return $addr;
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}
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/**
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* Returns a possible existing netmask specification at an IP addresse.
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*
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* @param String $ip the (compressed) IP as Hex representation
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*
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* @return String the netmask spec
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* @since 1.1.0
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* @access public
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* @static
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*/
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function getNetmaskSpec($ip)
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{
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$spec = '';
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if (false !== strpos($ip, '/')) {
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$elements = explode('/', $ip);
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if (2 == count($elements)) {
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$spec = $elements[1];
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}
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}
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return $spec;
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}
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// }}}
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// {{{ getNetmask()
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/**
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* Calculates the network prefix based on the netmask bits.
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*
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* @param String $ip the (compressed) IP in Hex format
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* @param int $bits if the number of netmask bits is not part of the IP
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* you must provide the number of bits
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*
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* @return String the network prefix
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* @since 1.1.0
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* @access public
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* @static
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*/
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function getNetmask($ip, $bits = null)
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{
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if (null==$bits) {
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$elements = explode('/', $ip);
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if (2 == count($elements)) {
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$addr = $elements[0];
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$bits = $elements[1];
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} else {
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include_once 'PEAR.inc';
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return PEAR::raiseError(NET_IPV6_NO_NETMASK_MSG,
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NET_IPV6_NO_NETMASK);
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}
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} else {
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$addr = $ip;
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}
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$addr = Net_IPv6::uncompress($addr);
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$binNetmask = str_repeat('1', $bits).str_repeat('0', 128 - $bits);
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return Net_IPv6::_bin2Ip(Net_IPv6::_ip2Bin($addr) & $binNetmask);
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}
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// }}}
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// {{{ isInNetmask()
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/**
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* Checks if an (compressed) IP is in a specific address space.
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*
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* IF the IP does not contains the number of netmask bits (F8000::FFFF/16)
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* then you have to use the $bits parameter.
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*
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* @param String $ip the IP to check (eg. F800::FFFF)
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* @param String $netmask the netmask (eg F800::)
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* @param int $bits the number of netmask bits to compare,
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* if not given in $ip
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*
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* @return boolean true if $ip is in the netmask
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* @since 1.1.0
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* @access public
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* @static
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*/
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function isInNetmask($ip, $netmask, $bits=null)
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{
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// try to get the bit count
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if (null == $bits) {
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$elements = explode('/', $ip);
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| 256 |
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if (2 == count($elements)) {
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$ip = $elements[0];
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$bits = $elements[1];
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} else if (null == $bits) {
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| 263 |
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$elements = explode('/', $netmask);
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| 265 |
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if (2 == count($elements)) {
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$netmask = $elements[0];
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$bits = $elements[1];
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}
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if (null == $bits) {
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include_once 'PEAR.inc';
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return PEAR::raiseError(NET_IPV6_NO_NETMASK_MSG,
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NET_IPV6_NO_NETMASK);
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}
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| 280 |
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}
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| 281 |
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| 282 |
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}
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| 284 |
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$binIp = Net_IPv6::_ip2Bin(Net_IPv6::removeNetmaskSpec($ip));
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$binNetmask = Net_IPv6::_ip2Bin(Net_IPv6::removeNetmaskSpec($netmask));
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| 287 |
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if (null != $bits
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&& "" != $bits
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&& 0 == strncmp( $binNetmask, $binIp, $bits)) {
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| 290 |
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| 291 |
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return true;
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| 292 |
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| 293 |
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}
|
| 294 |
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| 295 |
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return false;
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| 296 |
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}
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| 297 |
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| 298 |
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// }}}
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| 299 |
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// {{{ getAddressType()
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| 300 |
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| 301 |
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/**
|
| 302 |
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* Returns the type of an IPv6 address.
|
| 303 |
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*
|
| 304 |
|
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* RFC 1883, Section 2.3 describes several types of addresses in
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| 305 |
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* the IPv6 addresse space.
|
| 306 |
|
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* Several addresse types are markers for reserved spaces and as
|
| 307 |
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* consequence a subject to change.
|
| 308 |
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*
|
| 309 |
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* @param String $ip the IP address in Hex format,
|
| 310 |
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* compressed IPs are allowed
|
| 311 |
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*
|
| 312 |
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* @return int one of the addresse type constants
|
| 313 |
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* @access public
|
| 314 |
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* @since 1.1.0
|
| 315 |
|
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* @static
|
| 316 |
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*
|
| 317 |
|
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* @see NET_IPV6_UNASSIGNED
|
| 318 |
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* @see NET_IPV6_RESERVED
|
| 319 |
|
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* @see NET_IPV6_RESERVED_NSAP
|
| 320 |
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* @see NET_IPV6_RESERVED_IPX
|
| 321 |
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* @see NET_IPV6_RESERVED_UNICAST_GEOGRAPHIC
|
| 322 |
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* @see NET_IPV6_UNICAST_PROVIDER
|
| 323 |
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* @see NET_IPV6_MULTICAST
|
| 324 |
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* @see NET_IPV6_LOCAL_LINK
|
| 325 |
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* @see NET_IPV6_LOCAL_SITE
|
| 326 |
|
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* @see NET_IPV6_UNKNOWN_TYPE
|
| 327 |
|
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*/
|
| 328 |
|
|
function getAddressType($ip)
|
| 329 |
|
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{
|
| 330 |
|
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$ip = Net_IPv6::removeNetmaskSpec($ip);
|
| 331 |
|
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$binip = Net_IPv6::_ip2Bin($ip);
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| 332 |
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| 333 |
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if (0 == strncmp('1111111010', $binip, 10)) {
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| 334 |
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| 335 |
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return NET_IPV6_LOCAL_LINK;
|
| 336 |
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| 337 |
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} else if (0 == strncmp('1111111011', $binip, 10)) {
|
| 338 |
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| 339 |
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return NET_IPV6_LOCAL_SITE;
|
| 340 |
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| 341 |
|
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} else if (0 == strncmp('111111100', $binip, 9)) {
|
| 342 |
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| 343 |
|
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return NET_IPV6_UNASSIGNED;
|
| 344 |
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| 345 |
|
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} else if (0 == strncmp('11111111', $binip, 8)) {
|
| 346 |
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| 347 |
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return NET_IPV6_MULTICAST;
|
| 348 |
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| 349 |
|
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} else if (0 == strncmp('00000000', $binip, 8)) {
|
| 350 |
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| 351 |
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return NET_IPV6_RESERVED;
|
| 352 |
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| 353 |
|
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} else if (0 == strncmp('00000001', $binip, 8)
|
| 354 |
|
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|| 0 == strncmp('1111110', $binip, 7)) {
|
| 355 |
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|
| 356 |
|
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return NET_IPV6_UNASSIGNED;
|
| 357 |
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|
| 358 |
|
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} else if (0 == strncmp('0000001', $binip, 7)) {
|
| 359 |
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|
| 360 |
|
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return NET_IPV6_RESERVED_NSAP;
|
| 361 |
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|
| 362 |
|
|
} else if (0 == strncmp('0000010', $binip, 7)) {
|
| 363 |
|
|
|
| 364 |
|
|
return NET_IPV6_RESERVED_IPX;;
|
| 365 |
|
|
|
| 366 |
|
|
} else if (0 == strncmp('0000011', $binip, 7) ||
|
| 367 |
|
|
0 == strncmp('111110', $binip, 6) ||
|
| 368 |
|
|
0 == strncmp('11110', $binip, 5) ||
|
| 369 |
|
|
0 == strncmp('00001', $binip, 5) ||
|
| 370 |
|
|
0 == strncmp('1110', $binip, 4) ||
|
| 371 |
|
|
0 == strncmp('0001', $binip, 4) ||
|
| 372 |
|
|
0 == strncmp('001', $binip, 3) ||
|
| 373 |
|
|
0 == strncmp('011', $binip, 3) ||
|
| 374 |
|
|
0 == strncmp('101', $binip, 3) ||
|
| 375 |
|
|
0 == strncmp('110', $binip, 3)) {
|
| 376 |
|
|
|
| 377 |
|
|
return NET_IPV6_UNASSIGNED;
|
| 378 |
|
|
|
| 379 |
|
|
} else if (0 == strncmp('010', $binip, 3)) {
|
| 380 |
|
|
|
| 381 |
|
|
return NET_IPV6_UNICAST_PROVIDER;
|
| 382 |
|
|
|
| 383 |
|
|
} else if (0 == strncmp('100', $binip, 3)) {
|
| 384 |
|
|
|
| 385 |
|
|
return NET_IPV6_RESERVED_UNICAST_GEOGRAPHIC;
|
| 386 |
|
|
|
| 387 |
|
|
}
|
| 388 |
|
|
|
| 389 |
|
|
return NET_IPV6_UNKNOWN_TYPE;
|
| 390 |
|
|
}
|
| 391 |
|
|
|
| 392 |
|
|
// }}}
|
| 393 |
|
|
// {{{ Uncompress()
|
| 394 |
|
|
|
| 395 |
|
|
/**
|
| 396 |
|
|
* Uncompresses an IPv6 adress
|
| 397 |
|
|
*
|
| 398 |
|
|
* RFC 2373 allows you to compress zeros in an adress to '::'. This
|
| 399 |
|
|
* function expects an valid IPv6 adress and expands the '::' to
|
| 400 |
|
|
* the required zeros.
|
| 401 |
|
|
*
|
| 402 |
|
|
* Example: FF01::101 -> FF01:0:0:0:0:0:0:101
|
| 403 |
|
|
* ::1 -> 0:0:0:0:0:0:0:1
|
| 404 |
|
|
*
|
| 405 |
|
|
* @access public
|
| 406 |
|
|
* @see Compress()
|
| 407 |
|
|
* @static
|
| 408 |
|
|
* @param string $ip a valid IPv6-adress (hex format)
|
| 409 |
|
|
* @return string the uncompressed IPv6-adress (hex format)
|
| 410 |
|
|
*/
|
| 411 |
|
|
function uncompress($ip)
|
| 412 |
|
|
{
|
| 413 |
|
|
|
| 414 |
|
|
$prefix = Net_IPv6::getPrefixLength($ip);
|
| 415 |
|
|
|
| 416 |
|
|
if (false === $prefix) {
|
| 417 |
|
|
|
| 418 |
|
|
$prefix = '';
|
| 419 |
|
|
|
| 420 |
|
|
} else {
|
| 421 |
|
|
|
| 422 |
|
|
$ip = Net_IPv6::removePrefixLength($ip);
|
| 423 |
|
|
$prefix = '/'.$prefix;
|
| 424 |
|
|
|
| 425 |
|
|
}
|
| 426 |
|
|
|
| 427 |
|
|
$netmask = Net_IPv6::getNetmaskSpec($ip);
|
| 428 |
|
|
$uip = Net_IPv6::removeNetmaskSpec($ip);
|
| 429 |
|
|
|
| 430 |
|
|
$c1 = -1;
|
| 431 |
|
|
$c2 = -1;
|
| 432 |
|
|
|
| 433 |
|
|
if (false !== strpos($uip, '::') ) {
|
| 434 |
|
|
|
| 435 |
|
|
list($ip1, $ip2) = explode('::', $uip);
|
| 436 |
|
|
|
| 437 |
|
|
if("" == $ip1) {
|
| 438 |
|
|
|
| 439 |
|
|
$c1 = -1;
|
| 440 |
|
|
|
| 441 |
|
|
} else {
|
| 442 |
|
|
|
| 443 |
|
|
$pos = 0;
|
| 444 |
|
|
|
| 445 |
|
|
if (0 < ($pos = substr_count($ip1, ':'))) {
|
| 446 |
|
|
|
| 447 |
|
|
$c1 = $pos;
|
| 448 |
|
|
|
| 449 |
|
|
} else {
|
| 450 |
|
|
|
| 451 |
|
|
$c1 = 0;
|
| 452 |
|
|
|
| 453 |
|
|
}
|
| 454 |
|
|
}
|
| 455 |
|
|
if ("" == $ip2) {
|
| 456 |
|
|
|
| 457 |
|
|
$c2 = -1;
|
| 458 |
|
|
|
| 459 |
|
|
} else {
|
| 460 |
|
|
|
| 461 |
|
|
$pos = 0;
|
| 462 |
|
|
|
| 463 |
|
|
if (0 < ($pos = substr_count($ip2, ':'))) {
|
| 464 |
|
|
|
| 465 |
|
|
$c2 = $pos;
|
| 466 |
|
|
|
| 467 |
|
|
} else {
|
| 468 |
|
|
|
| 469 |
|
|
$c2 = 0;
|
| 470 |
|
|
|
| 471 |
|
|
}
|
| 472 |
|
|
|
| 473 |
|
|
}
|
| 474 |
|
|
|
| 475 |
|
|
if (strstr($ip2, '.')) {
|
| 476 |
|
|
|
| 477 |
|
|
$c2++;
|
| 478 |
|
|
|
| 479 |
|
|
}
|
| 480 |
|
|
if (-1 == $c1 && -1 == $c2) { // ::
|
| 481 |
|
|
|
| 482 |
|
|
$uip = "0:0:0:0:0:0:0:0";
|
| 483 |
|
|
|
| 484 |
|
|
} else if (-1 == $c1) { // ::xxx
|
| 485 |
|
|
|
| 486 |
|
|
$fill = str_repeat('0:', 7-$c2);
|
| 487 |
|
|
$uip = str_replace('::', $fill, $uip);
|
| 488 |
|
|
|
| 489 |
|
|
} else if (-1 == $c2) { // xxx::
|
| 490 |
|
|
|
| 491 |
|
|
$fill = str_repeat(':0', 7-$c1);
|
| 492 |
|
|
$uip = str_replace('::', $fill, $uip);
|
| 493 |
|
|
|
| 494 |
|
|
} else { // xxx::xxx
|
| 495 |
|
|
|
| 496 |
|
|
$fill = str_repeat(':0:', 6-$c2-$c1);
|
| 497 |
|
|
$uip = str_replace('::', $fill, $uip);
|
| 498 |
|
|
$uip = str_replace('::', ':', $uip);
|
| 499 |
|
|
|
| 500 |
|
|
}
|
| 501 |
|
|
}
|
| 502 |
|
|
if ('' != $netmask) {
|
| 503 |
|
|
|
| 504 |
|
|
$uip = $uip.'/'.$netmask;
|
| 505 |
|
|
|
| 506 |
|
|
}
|
| 507 |
|
|
|
| 508 |
|
|
return $uip.$prefix;
|
| 509 |
|
|
}
|
| 510 |
|
|
|
| 511 |
|
|
// }}}
|
| 512 |
|
|
// {{{ Compress()
|
| 513 |
|
|
|
| 514 |
|
|
/**
|
| 515 |
|
|
* Compresses an IPv6 adress
|
| 516 |
|
|
*
|
| 517 |
|
|
* RFC 2373 allows you to compress zeros in an adress to '::'. This
|
| 518 |
|
|
* function expects an valid IPv6 adress and compresses successive zeros
|
| 519 |
|
|
* to '::'
|
| 520 |
|
|
*
|
| 521 |
|
|
* Example: FF01:0:0:0:0:0:0:101 -> FF01::101
|
| 522 |
|
|
* 0:0:0:0:0:0:0:1 -> ::1
|
| 523 |
|
|
*
|
| 524 |
|
|
* @access public
|
| 525 |
|
|
* @see Uncompress()
|
| 526 |
|
|
* @static
|
| 527 |
|
|
* @param string $ip a valid IPv6-adress (hex format)
|
| 528 |
|
|
* @return string the compressed IPv6-adress (hex format)
|
| 529 |
|
|
* @author elfrink at introweb dot nl
|
| 530 |
|
|
*/
|
| 531 |
|
|
function compress($ip)
|
| 532 |
|
|
{
|
| 533 |
|
|
$prefix = Net_IPv6::getPrefixLength($ip);
|
| 534 |
|
|
|
| 535 |
|
|
if (false === $prefix) {
|
| 536 |
|
|
|
| 537 |
|
|
$prefix = '';
|
| 538 |
|
|
|
| 539 |
|
|
} else {
|
| 540 |
|
|
|
| 541 |
|
|
$ip = Net_IPv6::removePrefixLength($ip);
|
| 542 |
|
|
$prefix = '/'.$prefix;
|
| 543 |
|
|
|
| 544 |
|
|
}
|
| 545 |
|
|
|
| 546 |
|
|
$netmask = Net_IPv6::getNetmaskSpec($ip);
|
| 547 |
|
|
$ip = Net_IPv6::removeNetmaskSpec($ip);
|
| 548 |
|
|
|
| 549 |
|
|
if (!strstr($ip, '::')) {
|
| 550 |
|
|
|
| 551 |
|
|
$ipp = explode(':',$ip);
|
| 552 |
|
|
|
| 553 |
|
|
for ($i = 0; $i < count($ipp); $i++) {
|
| 554 |
|
|
|
| 555 |
|
|
$ipp[$i] = dechex(hexdec($ipp[$i]));
|
| 556 |
|
|
|
| 557 |
|
|
}
|
| 558 |
|
|
|
| 559 |
|
|
$cip = ':' . join(':',$ipp) . ':';
|
| 560 |
|
|
|
| 561 |
|
|
preg_match_all("/(:0)+/", $cip, $zeros);
|
| 562 |
|
|
|
| 563 |
|
|
if (count($zeros[0]) > 0) {
|
| 564 |
|
|
|
| 565 |
|
|
$match = '';
|
| 566 |
|
|
|
| 567 |
|
|
foreach($zeros[0] as $zero) {
|
| 568 |
|
|
|
| 569 |
|
|
if (strlen($zero) > strlen($match)) {
|
| 570 |
|
|
|
| 571 |
|
|
$match = $zero;
|
| 572 |
|
|
|
| 573 |
|
|
}
|
| 574 |
|
|
}
|
| 575 |
|
|
|
| 576 |
|
|
$cip = preg_replace('/' . $match . '/', ':', $cip, 1);
|
| 577 |
|
|
|
| 578 |
|
|
}
|
| 579 |
|
|
|
| 580 |
|
|
$cip = preg_replace('/((^:)|(:$))/', '' ,$cip);
|
| 581 |
|
|
$cip = preg_replace('/((^:)|(:$))/', '::' ,$cip);
|
| 582 |
|
|
|
| 583 |
|
|
}
|
| 584 |
|
|
if ('' != $netmask) {
|
| 585 |
|
|
|
| 586 |
|
|
$cip = $cip.'/'.$netmask;
|
| 587 |
|
|
|
| 588 |
|
|
}
|
| 589 |
|
|
|
| 590 |
|
|
return $cip.$prefix;
|
| 591 |
|
|
}
|
| 592 |
|
|
|
| 593 |
|
|
// }}}
|
| 594 |
|
|
// {{{ SplitV64()
|
| 595 |
|
|
|
| 596 |
|
|
/**
|
| 597 |
|
|
* Splits an IPv6 adress into the IPv6 and a possible IPv4 part
|
| 598 |
|
|
*
|
| 599 |
|
|
* RFC 2373 allows you to note the last two parts of an IPv6 adress as
|
| 600 |
|
|
* an IPv4 compatible adress
|
| 601 |
|
|
*
|
| 602 |
|
|
* Example: 0:0:0:0:0:0:13.1.68.3
|
| 603 |
|
|
* 0:0:0:0:0:FFFF:129.144.52.38
|
| 604 |
|
|
*
|
| 605 |
|
|
* @param string $ip a valid IPv6-adress (hex format)
|
| 606 |
|
|
*
|
| 607 |
|
|
* @return array [0] contains the IPv6 part,
|
| 608 |
|
|
* [1] the IPv4 part (hex format)
|
| 609 |
|
|
* @access public
|
| 610 |
|
|
* @static
|
| 611 |
|
|
*/
|
| 612 |
|
|
function SplitV64($ip, $uncompress = true)
|
| 613 |
|
|
{
|
| 614 |
|
|
$ip = Net_IPv6::removeNetmaskSpec($ip);
|
| 615 |
|
|
|
| 616 |
|
|
if ($uncompress) {
|
| 617 |
|
|
|
| 618 |
|
|
$ip = Net_IPv6::Uncompress($ip);
|
| 619 |
|
|
|
| 620 |
|
|
}
|
| 621 |
|
|
|
| 622 |
|
|
if (strstr($ip, '.')) {
|
| 623 |
|
|
|
| 624 |
|
|
$pos = strrpos($ip, ':');
|
| 625 |
|
|
$ip{$pos} = '_';
|
| 626 |
|
|
$ipPart = explode('_', $ip);
|
| 627 |
|
|
|
| 628 |
|
|
return $ipPart;
|
| 629 |
|
|
|
| 630 |
|
|
} else {
|
| 631 |
|
|
|
| 632 |
|
|
return array($ip, "");
|
| 633 |
|
|
|
| 634 |
|
|
}
|
| 635 |
|
|
}
|
| 636 |
|
|
|
| 637 |
|
|
// }}}
|
| 638 |
|
|
// {{{ checkIPv6()
|
| 639 |
|
|
|
| 640 |
|
|
/**
|
| 641 |
|
|
* Checks an IPv6 adress
|
| 642 |
|
|
*
|
| 643 |
|
|
* Checks if the given IP is IPv6-compatible
|
| 644 |
|
|
*
|
| 645 |
|
|
* @access public
|
| 646 |
|
|
* @static
|
| 647 |
|
|
* @param string $ip a valid IPv6-adress
|
| 648 |
|
|
* @return boolean true if $ip is an IPv6 adress
|
| 649 |
|
|
*/
|
| 650 |
|
|
function checkIPv6($ip)
|
| 651 |
|
|
{
|
| 652 |
|
|
$ip = Net_IPv6::removePrefixLength($ip);
|
| 653 |
|
|
$ip = Net_IPv6::removeNetmaskSpec($ip);
|
| 654 |
|
|
|
| 655 |
|
|
$ipPart = Net_IPv6::SplitV64($ip);
|
| 656 |
|
|
$count = 0;
|
| 657 |
|
|
|
| 658 |
|
|
if (!empty($ipPart[0]))
|
| 659 |
|
|
{
|
| 660 |
|
|
$ipv6 =explode(':', $ipPart[0]);
|
| 661 |
|
|
|
| 662 |
|
|
for ($i = 0; $i < count($ipv6); $i++) {
|
| 663 |
|
|
|
| 664 |
|
|
$dec = hexdec($ipv6[$i]);
|
| 665 |
|
|
$hex = strtoupper(preg_replace("/^[0]{1,3}(.*[0-9a-fA-F])$/",
|
| 666 |
|
|
"\\1",
|
| 667 |
|
|
$ipv6[$i]));
|
| 668 |
|
|
|
| 669 |
|
|
if ($ipv6[$i] >= 0 && $dec <= 65535
|
| 670 |
|
|
&& $hex == strtoupper(dechex($dec))) {
|
| 671 |
|
|
|
| 672 |
|
|
$count++;
|
| 673 |
|
|
|
| 674 |
|
|
}
|
| 675 |
|
|
|
| 676 |
|
|
}
|
| 677 |
|
|
|
| 678 |
|
|
if (8 == $count) {
|
| 679 |
|
|
|
| 680 |
|
|
return true;
|
| 681 |
|
|
|
| 682 |
|
|
} else if (6 == $count and !empty($ipPart[1])) {
|
| 683 |
|
|
|
| 684 |
|
|
$ipv4 = explode('.',$ipPart[1]);
|
| 685 |
|
|
$count = 0;
|
| 686 |
|
|
|
| 687 |
|
|
for ($i = 0; $i < count($ipv4); $i++) {
|
| 688 |
|
|
|
| 689 |
|
|
if ($ipv4[$i] >= 0 && (integer)$ipv4[$i] <= 255
|
| 690 |
|
|
&& preg_match("/^\d{1,3}$/", $ipv4[$i])) {
|
| 691 |
|
|
|
| 692 |
|
|
$count++;
|
| 693 |
|
|
|
| 694 |
|
|
}
|
| 695 |
|
|
|
| 696 |
|
|
}
|
| 697 |
|
|
|
| 698 |
|
|
if (4 == $count) {
|
| 699 |
|
|
|
| 700 |
|
|
return true;
|
| 701 |
|
|
|
| 702 |
|
|
}
|
| 703 |
|
|
|
| 704 |
|
|
} else {
|
| 705 |
|
|
|
| 706 |
|
|
return false;
|
| 707 |
|
|
|
| 708 |
|
|
}
|
| 709 |
|
|
|
| 710 |
|
|
} else {
|
| 711 |
|
|
|
| 712 |
|
|
return false;
|
| 713 |
|
|
|
| 714 |
|
|
}
|
| 715 |
|
|
|
| 716 |
|
|
}
|
| 717 |
|
|
|
| 718 |
|
|
// }}}
|
| 719 |
|
|
// {{{ getPrefixLength()
|
| 720 |
|
|
|
| 721 |
|
|
/**
|
| 722 |
|
|
* Tests for a prefix length specification in the address
|
| 723 |
|
|
* and returns the prefix length, if exists
|
| 724 |
|
|
*
|
| 725 |
|
|
* @param String $ip a valid ipv6 address
|
| 726 |
|
|
*
|
| 727 |
|
|
* @return Mixed the prefix as String or false, if no prefix was found
|
| 728 |
|
|
* @access public
|
| 729 |
|
|
* @static
|
| 730 |
|
|
*/
|
| 731 |
|
|
function getPrefixLength($ip)
|
| 732 |
|
|
{
|
| 733 |
|
|
if (preg_match("/^([0-9a-fA-F:]{2,39})\/(\d{1,3})*$/",
|
| 734 |
|
|
$ip, $matches)) {
|
| 735 |
|
|
|
| 736 |
|
|
return $matches[2];
|
| 737 |
|
|
|
| 738 |
|
|
} else {
|
| 739 |
|
|
|
| 740 |
|
|
return false;
|
| 741 |
|
|
|
| 742 |
|
|
}
|
| 743 |
|
|
|
| 744 |
|
|
}
|
| 745 |
|
|
|
| 746 |
|
|
// }}}
|
| 747 |
|
|
// {{{ removePrefixLength()
|
| 748 |
|
|
|
| 749 |
|
|
/**
|
| 750 |
|
|
* Tests for a prefix length specification in the address
|
| 751 |
|
|
* and removes the prefix length, if exists
|
| 752 |
|
|
*
|
| 753 |
|
|
* @param String $ip a valid ipv6 address
|
| 754 |
|
|
*
|
| 755 |
|
|
* @return String the address without a prefix length
|
| 756 |
|
|
* @access public
|
| 757 |
|
|
* @static
|
| 758 |
|
|
*/
|
| 759 |
|
|
function removePrefixLength($ip)
|
| 760 |
|
|
{
|
| 761 |
|
|
$pos = strrpos($ip, '/');
|
| 762 |
|
|
|
| 763 |
|
|
if (false !== $pos) {
|
| 764 |
|
|
|
| 765 |
|
|
return substr($ip, 0, $pos);
|
| 766 |
|
|
|
| 767 |
|
|
}
|
| 768 |
|
|
|
| 769 |
|
|
return $ip;
|
| 770 |
|
|
}
|
| 771 |
|
|
|
| 772 |
|
|
// }}}
|
| 773 |
|
|
|
| 774 |
|
|
// {{{ _parseAddress()
|
| 775 |
|
|
|
| 776 |
|
|
/**
|
| 777 |
|
|
* Returns the lowest and highest IPv6 address
|
| 778 |
|
|
* for a given IP and netmask specification
|
| 779 |
|
|
*
|
| 780 |
|
|
* The netmask may be a part of the $ip or
|
| 781 |
|
|
* the number of netwask bits is provided via $bits
|
| 782 |
|
|
*
|
| 783 |
|
|
* The result is an indexed array. The key 'start'
|
| 784 |
|
|
* contains the lowest possible IP adress. The key
|
| 785 |
|
|
* 'end' the highest address.
|
| 786 |
|
|
*
|
| 787 |
|
|
* @param String $ip the IPv6 address
|
| 788 |
|
|
* @param String $bits the optional count of netmask bits
|
| 789 |
|
|
*
|
| 790 |
|
|
* @return Array ['start', 'end'] the lowest and highest IPv6 address
|
| 791 |
|
|
* @access public
|
| 792 |
|
|
* @static
|
| 793 |
|
|
* @author Nicholas Williams
|
| 794 |
|
|
*/
|
| 795 |
|
|
|
| 796 |
|
|
function parseAddress($ipToParse, $bits = null)
|
| 797 |
|
|
{
|
| 798 |
|
|
|
| 799 |
|
|
$ip = null;
|
| 800 |
|
|
$bitmask = null;
|
| 801 |
|
|
|
| 802 |
|
|
if( null == $bits )
|
| 803 |
|
|
{
|
| 804 |
|
|
|
| 805 |
|
|
$elements = explode('/', $ipToParse);
|
| 806 |
|
|
|
| 807 |
|
|
if( 2 == count($elements) ) {
|
| 808 |
|
|
|
| 809 |
|
|
$ip = Net_IPv6::uncompress($elements[0]);
|
| 810 |
|
|
$bitmask = $elements[1];
|
| 811 |
|
|
|
| 812 |
|
|
} else {
|
| 813 |
|
|
|
| 814 |
|
|
include_once 'PEAR.inc';
|
| 815 |
|
|
|
| 816 |
|
|
return PEAR::raiseError(NET_IPV6_NO_NETMASK_MSG,
|
| 817 |
|
|
NET_IPV6_NO_NETMASK);
|
| 818 |
|
|
}
|
| 819 |
|
|
}
|
| 820 |
|
|
else
|
| 821 |
|
|
{
|
| 822 |
|
|
|
| 823 |
|
|
$ip = Net_IPv6::uncompress($ipToParse);
|
| 824 |
|
|
$bitmask = $bits;
|
| 825 |
|
|
|
| 826 |
|
|
}
|
| 827 |
|
|
|
| 828 |
|
|
$binNetmask = str_repeat('1', $bitmask).
|
| 829 |
|
|
str_repeat('0', 128 - $bitmask);
|
| 830 |
|
|
$maxNetmask = str_repeat('1', 128);
|
| 831 |
|
|
$netmask = Net_IPv6::_bin2Ip($binNetmask);
|
| 832 |
|
|
|
| 833 |
|
|
$startAddress = Net_IPv6::_bin2Ip(Net_IPv6::_ip2Bin($ip)
|
| 834 |
|
|
& $binNetmask);
|
| 835 |
|
|
$endAddress = Net_IPv6::_bin2Ip(Net_IPv6::_ip2Bin($ip)
|
| 836 |
|
|
| ($binNetmask ^ $maxNetmask));
|
| 837 |
|
|
|
| 838 |
|
|
return array('start' => $startAddress, 'end' => $endAddress);
|
| 839 |
|
|
}
|
| 840 |
|
|
|
| 841 |
|
|
// }}}
|
| 842 |
|
|
|
| 843 |
|
|
// {{{ _ip2Bin()
|
| 844 |
|
|
|
| 845 |
|
|
/**
|
| 846 |
|
|
* Converts an IPv6 address from Hex into Binary representation.
|
| 847 |
|
|
*
|
| 848 |
|
|
* @param String $ip the IP to convert (a:b:c:d:e:f:g:h),
|
| 849 |
|
|
* compressed IPs are allowed
|
| 850 |
|
|
*
|
| 851 |
|
|
* @return String the binary representation
|
| 852 |
|
|
* @access private
|
| 853 |
|
|
@ @since 1.1.0
|
| 854 |
|
|
*/
|
| 855 |
|
|
function _ip2Bin($ip)
|
| 856 |
|
|
{
|
| 857 |
|
|
$binstr = '';
|
| 858 |
|
|
|
| 859 |
|
|
$ip = Net_IPv6::removeNetmaskSpec($ip);
|
| 860 |
|
|
$ip = Net_IPv6::Uncompress($ip);
|
| 861 |
|
|
|
| 862 |
|
|
$parts = explode(':', $ip);
|
| 863 |
|
|
|
| 864 |
|
|
foreach($parts as $v) {
|
| 865 |
|
|
|
| 866 |
|
|
$str = base_convert($v, 16, 2);
|
| 867 |
|
|
$binstr .= str_pad($str, 16, '0', STR_PAD_LEFT);
|
| 868 |
|
|
|
| 869 |
|
|
}
|
| 870 |
|
|
|
| 871 |
|
|
return $binstr;
|
| 872 |
|
|
}
|
| 873 |
|
|
|
| 874 |
|
|
// }}}
|
| 875 |
|
|
// {{{ _bin2Ip()
|
| 876 |
|
|
|
| 877 |
|
|
/**
|
| 878 |
|
|
* Converts an IPv6 address from Binary into Hex representation.
|
| 879 |
|
|
*
|
| 880 |
|
|
* @param String $ip the IP as binary
|
| 881 |
|
|
*
|
| 882 |
|
|
* @return String the uncompressed Hex representation
|
| 883 |
|
|
* @access private
|
| 884 |
|
|
@ @since 1.1.0
|
| 885 |
|
|
*/
|
| 886 |
|
|
function _bin2Ip($bin)
|
| 887 |
|
|
{
|
| 888 |
|
|
$ip = "";
|
| 889 |
|
|
|
| 890 |
|
|
if (strlen($bin) < 128) {
|
| 891 |
|
|
|
| 892 |
|
|
$bin = str_pad($str, 128, '0', STR_PAD_LEFT);
|
| 893 |
|
|
|
| 894 |
|
|
}
|
| 895 |
|
|
|
| 896 |
|
|
$parts = str_split($bin, "16");
|
| 897 |
|
|
|
| 898 |
|
|
foreach($parts as $v) {
|
| 899 |
|
|
|
| 900 |
|
|
$str = base_convert($v, 2, 16);
|
| 901 |
|
|
$ip .= $str.":";
|
| 902 |
|
|
|
| 903 |
|
|
}
|
| 904 |
|
|
|
| 905 |
|
|
$ip = substr($ip, 0,-1);
|
| 906 |
|
|
|
| 907 |
|
|
return $ip;
|
| 908 |
|
|
}
|
| 909 |
|
|
|
| 910 |
|
|
// }}}
|
| 911 |
|
|
}
|
| 912 |
|
|
// }}}
|
| 913 |
|
|
|
| 914 |
|
|
/*
|
| 915 |
|
|
* Local variables:
|
| 916 |
|
|
* tab-width: 4
|
| 917 |
|
|
* c-basic-offset: 4
|
| 918 |
|
|
* c-hanging-comment-ender-p: nil
|
| 919 |
|
|
* End:
|
| 920 |
|
|
*/
|
| 921 |
|
|
|
| 922 |
523855b0
|
Scott Ullrich
|
?>
|