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56c100ab
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Erik Fonnesbeck
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<?php
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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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b37a2e8c
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Phil Davis
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* available through the world-wide-web at
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56c100ab
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Erik Fonnesbeck
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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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03ab9b30
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Ermal
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* @license BSD License http://www.opensource.org/licenses/bsd-license.php
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bf416e49
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Ermal
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* @version CVS: $Id$
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56c100ab
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Erik Fonnesbeck
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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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b37a2e8c
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Phil Davis
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* Address Type: Reserved for Geographic-Based Unicast Addresses
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56c100ab
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Erik Fonnesbeck
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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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03ab9b30
|
Ermal
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/**
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* Address Type: Address range to embedded IPv4 ip in an IPv6 address (RFC 4291, Section 2.5.5)
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* @see getAddressType()
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*/
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define("NET_IPV6_IPV4MAPPING", 51);
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/**
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* Address Type: Unspecified (RFC 4291, Section 2.5.2)
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* @see getAddressType()
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*/
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define("NET_IPV6_UNSPECIFIED", 52);
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/**
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* Address Type: Unspecified (RFC 4291, Section 2.5.3)
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* @see getAddressType()
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*/
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define("NET_IPV6_LOOPBACK", 53);
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56c100ab
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Erik Fonnesbeck
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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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* @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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03ab9b30
|
Ermal
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* @copyright 2003-2010 The PHP Group
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* @license BSD License http://www.opensource.org/licenses/bsd-license.php
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* @version Release: 1.1.0RC5
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* @link http://pear.php.net/package/Net_IPv6
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56c100ab
|
Erik Fonnesbeck
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*/
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03ab9b30
|
Ermal
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class Net_IPv6
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{
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56c100ab
|
Erik Fonnesbeck
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| 138 |
03ab9b30
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Ermal
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// {{{ separate()
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/**
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* Separates an IPv6 address into the address and a prefix length part
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*
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* @param String $ip the (compressed) IP as Hex representation
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*
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* @return Array the first element is the IP, the second the prefix length
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* @since 1.2.0
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* @access public
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| 147 |
b37a2e8c
|
Phil Davis
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* @static
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| 148 |
03ab9b30
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Ermal
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*/
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b37a2e8c
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Phil Davis
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static function separate($ip)
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03ab9b30
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Ermal
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{
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b37a2e8c
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Phil Davis
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| 152 |
03ab9b30
|
Ermal
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$addr = $ip;
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$spec = '';
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if(false === strrpos($ip, '/')) {
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return array($addr, $spec);
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}
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$elements = explode('/', $ip);
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if(2 == count($elements)) {
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$addr = $elements[0];
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$spec = $elements[1];
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}
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return array($addr, $spec);
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}
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// }}}
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// {{{ removeNetmaskSpec()
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| 176 |
56c100ab
|
Erik Fonnesbeck
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/**
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bf416e49
|
Ermal
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* Removes a possible existing prefix length/ netmask specification at an IP address.
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56c100ab
|
Erik Fonnesbeck
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*
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03ab9b30
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Ermal
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* @param String $ip the (compressed) IP as Hex representation
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56c100ab
|
Erik Fonnesbeck
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*
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* @return String the IP without netmask length
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* @since 1.1.0
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* @access public
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* @static
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*/
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b85d9c61
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Ermal LUÇI
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static function removeNetmaskSpec($ip)
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56c100ab
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Erik Fonnesbeck
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{
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03ab9b30
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Ermal
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$elements = Net_IPv6::separate($ip);
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| 191 |
56c100ab
|
Erik Fonnesbeck
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| 192 |
03ab9b30
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Ermal
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return $elements[0];
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| 193 |
56c100ab
|
Erik Fonnesbeck
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| 194 |
03ab9b30
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Ermal
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}
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// }}}
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// {{{ removePrefixLength()
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| 197 |
56c100ab
|
Erik Fonnesbeck
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| 198 |
03ab9b30
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Ermal
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/**
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* Tests for a prefix length specification in the address
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* and removes the prefix length, if exists
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*
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| 202 |
b37a2e8c
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Phil Davis
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* The method is technically identical to removeNetmaskSpec() and
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| 203 |
03ab9b30
|
Ermal
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* will be dropped in a future release.
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*
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* @param String $ip a valid ipv6 address
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*
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* @return String the address without a prefix length
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* @access public
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* @static
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* @see removeNetmaskSpec()
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* @deprecated
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*/
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| 213 |
b85d9c61
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Ermal LUÇI
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static function removePrefixLength($ip)
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03ab9b30
|
Ermal
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{
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$pos = strrpos($ip, '/');
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| 216 |
56c100ab
|
Erik Fonnesbeck
|
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| 217 |
03ab9b30
|
Ermal
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if (false !== $pos) {
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return substr($ip, 0, $pos);
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| 220 |
56c100ab
|
Erik Fonnesbeck
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}
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03ab9b30
|
Ermal
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return $ip;
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| 224 |
56c100ab
|
Erik Fonnesbeck
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}
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03ab9b30
|
Ermal
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// }}}
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// {{{ getNetmaskSpec()
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| 229 |
56c100ab
|
Erik Fonnesbeck
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/**
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| 230 |
bf416e49
|
Ermal
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* Returns a possible existing prefix length/netmask specification on an IP address.
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| 231 |
56c100ab
|
Erik Fonnesbeck
|
*
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| 232 |
03ab9b30
|
Ermal
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* @param String $ip the (compressed) IP as Hex representation
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| 233 |
56c100ab
|
Erik Fonnesbeck
|
*
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* @return String the netmask spec
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* @since 1.1.0
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* @access public
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* @static
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| 238 |
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*/
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| 239 |
b37a2e8c
|
Phil Davis
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static function getNetmaskSpec($ip)
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| 240 |
56c100ab
|
Erik Fonnesbeck
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{
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| 241 |
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| 242 |
03ab9b30
|
Ermal
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$elements = Net_IPv6::separate($ip);
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| 243 |
56c100ab
|
Erik Fonnesbeck
|
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| 244 |
03ab9b30
|
Ermal
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return $elements[1];
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| 245 |
56c100ab
|
Erik Fonnesbeck
|
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| 246 |
03ab9b30
|
Ermal
|
}
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| 247 |
56c100ab
|
Erik Fonnesbeck
|
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| 248 |
03ab9b30
|
Ermal
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// }}}
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| 249 |
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// {{{ getPrefixLength()
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| 250 |
56c100ab
|
Erik Fonnesbeck
|
|
| 251 |
03ab9b30
|
Ermal
|
/**
|
| 252 |
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* Tests for a prefix length specification in the address
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| 253 |
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* and returns the prefix length, if exists
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| 254 |
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*
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| 255 |
b37a2e8c
|
Phil Davis
|
* The method is technically identical to getNetmaskSpec() and
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| 256 |
03ab9b30
|
Ermal
|
* will be dropped in a future release.
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| 257 |
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*
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| 258 |
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* @param String $ip a valid ipv6 address
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| 259 |
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*
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| 260 |
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* @return Mixed the prefix as String or false, if no prefix was found
|
| 261 |
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* @access public
|
| 262 |
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* @static
|
| 263 |
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* @deprecated
|
| 264 |
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*/
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| 265 |
b37a2e8c
|
Phil Davis
|
static function getPrefixLength($ip)
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| 266 |
03ab9b30
|
Ermal
|
{
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| 267 |
b37a2e8c
|
Phil Davis
|
if (preg_match("/^([0-9a-fA-F:]{2,39})\/(\d{1,3})*$/",
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| 268 |
03ab9b30
|
Ermal
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$ip, $matches)) {
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| 269 |
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| 270 |
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return $matches[2];
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| 271 |
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| 272 |
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} else {
|
| 273 |
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| 274 |
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return false;
|
| 275 |
56c100ab
|
Erik Fonnesbeck
|
|
| 276 |
|
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}
|
| 277 |
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| 278 |
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}
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| 279 |
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| 280 |
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// }}}
|
| 281 |
|
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// {{{ getNetmask()
|
| 282 |
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|
| 283 |
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/**
|
| 284 |
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* Calculates the network prefix based on the netmask bits.
|
| 285 |
|
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*
|
| 286 |
03ab9b30
|
Ermal
|
* @param String $ip the (compressed) IP in Hex format
|
| 287 |
|
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* @param int $bits if the number of netmask bits is not part of the IP
|
| 288 |
|
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* you must provide the number of bits
|
| 289 |
56c100ab
|
Erik Fonnesbeck
|
*
|
| 290 |
|
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* @return String the network prefix
|
| 291 |
|
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* @since 1.1.0
|
| 292 |
|
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* @access public
|
| 293 |
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* @static
|
| 294 |
|
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*/
|
| 295 |
b85d9c61
|
Ermal LUÇI
|
static function getNetmask($ip, $bits = null)
|
| 296 |
56c100ab
|
Erik Fonnesbeck
|
{
|
| 297 |
|
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if (null==$bits) {
|
| 298 |
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|
| 299 |
|
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$elements = explode('/', $ip);
|
| 300 |
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| 301 |
|
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if (2 == count($elements)) {
|
| 302 |
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| 303 |
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$addr = $elements[0];
|
| 304 |
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$bits = $elements[1];
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| 305 |
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| 306 |
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} else {
|
| 307 |
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| 308 |
77148acc
|
Ermal
|
include_once 'PEAR.inc';
|
| 309 |
56c100ab
|
Erik Fonnesbeck
|
|
| 310 |
|
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return PEAR::raiseError(NET_IPV6_NO_NETMASK_MSG,
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| 311 |
|
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NET_IPV6_NO_NETMASK);
|
| 312 |
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}
|
| 313 |
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| 314 |
|
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} else {
|
| 315 |
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| 316 |
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$addr = $ip;
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| 317 |
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| 318 |
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}
|
| 319 |
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| 320 |
|
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$addr = Net_IPv6::uncompress($addr);
|
| 321 |
|
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$binNetmask = str_repeat('1', $bits).str_repeat('0', 128 - $bits);
|
| 322 |
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| 323 |
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return Net_IPv6::_bin2Ip(Net_IPv6::_ip2Bin($addr) & $binNetmask);
|
| 324 |
|
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}
|
| 325 |
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| 326 |
|
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// }}}
|
| 327 |
|
|
// {{{ isInNetmask()
|
| 328 |
|
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|
| 329 |
|
|
/**
|
| 330 |
|
|
* Checks if an (compressed) IP is in a specific address space.
|
| 331 |
|
|
*
|
| 332 |
bf416e49
|
Ermal
|
* If the IP does not contain the number of netmask bits (F8000::FFFF/16)
|
| 333 |
56c100ab
|
Erik Fonnesbeck
|
* then you have to use the $bits parameter.
|
| 334 |
|
|
*
|
| 335 |
03ab9b30
|
Ermal
|
* @param String $ip the IP to check (eg. F800::FFFF)
|
| 336 |
|
|
* @param String $netmask the netmask (eg F800::)
|
| 337 |
|
|
* @param int $bits the number of netmask bits to compare,
|
| 338 |
|
|
* if not given in $ip
|
| 339 |
56c100ab
|
Erik Fonnesbeck
|
*
|
| 340 |
|
|
* @return boolean true if $ip is in the netmask
|
| 341 |
|
|
* @since 1.1.0
|
| 342 |
|
|
* @access public
|
| 343 |
|
|
* @static
|
| 344 |
|
|
*/
|
| 345 |
b85d9c61
|
Ermal LUÇI
|
static function isInNetmask($ip, $netmask, $bits=null)
|
| 346 |
56c100ab
|
Erik Fonnesbeck
|
{
|
| 347 |
|
|
// try to get the bit count
|
| 348 |
|
|
|
| 349 |
|
|
if (null == $bits) {
|
| 350 |
|
|
|
| 351 |
|
|
$elements = explode('/', $ip);
|
| 352 |
|
|
|
| 353 |
|
|
if (2 == count($elements)) {
|
| 354 |
|
|
|
| 355 |
|
|
$ip = $elements[0];
|
| 356 |
|
|
$bits = $elements[1];
|
| 357 |
|
|
|
| 358 |
|
|
} else if (null == $bits) {
|
| 359 |
|
|
|
| 360 |
|
|
$elements = explode('/', $netmask);
|
| 361 |
|
|
|
| 362 |
|
|
if (2 == count($elements)) {
|
| 363 |
|
|
|
| 364 |
|
|
$netmask = $elements[0];
|
| 365 |
03ab9b30
|
Ermal
|
$bits = $elements[1];
|
| 366 |
56c100ab
|
Erik Fonnesbeck
|
|
| 367 |
|
|
}
|
| 368 |
|
|
|
| 369 |
|
|
if (null == $bits) {
|
| 370 |
|
|
|
| 371 |
77148acc
|
Ermal
|
include_once 'PEAR.inc';
|
| 372 |
56c100ab
|
Erik Fonnesbeck
|
return PEAR::raiseError(NET_IPV6_NO_NETMASK_MSG,
|
| 373 |
|
|
NET_IPV6_NO_NETMASK);
|
| 374 |
|
|
|
| 375 |
|
|
}
|
| 376 |
|
|
|
| 377 |
|
|
}
|
| 378 |
|
|
|
| 379 |
|
|
}
|
| 380 |
|
|
|
| 381 |
|
|
$binIp = Net_IPv6::_ip2Bin(Net_IPv6::removeNetmaskSpec($ip));
|
| 382 |
|
|
$binNetmask = Net_IPv6::_ip2Bin(Net_IPv6::removeNetmaskSpec($netmask));
|
| 383 |
|
|
|
| 384 |
03ab9b30
|
Ermal
|
if (null != $bits
|
| 385 |
|
|
&& "" != $bits
|
| 386 |
|
|
&& 0 == strncmp($binNetmask, $binIp, $bits)) {
|
| 387 |
56c100ab
|
Erik Fonnesbeck
|
|
| 388 |
|
|
return true;
|
| 389 |
|
|
|
| 390 |
|
|
}
|
| 391 |
|
|
|
| 392 |
|
|
return false;
|
| 393 |
|
|
}
|
| 394 |
|
|
|
| 395 |
|
|
// }}}
|
| 396 |
|
|
// {{{ getAddressType()
|
| 397 |
|
|
|
| 398 |
|
|
/**
|
| 399 |
|
|
* Returns the type of an IPv6 address.
|
| 400 |
|
|
*
|
| 401 |
03ab9b30
|
Ermal
|
* RFC 2373, Section 2.3 describes several types of addresses in
|
| 402 |
bf416e49
|
Ermal
|
* the IPv6 address space.
|
| 403 |
|
|
* Several address types are markers for reserved spaces and as
|
| 404 |
|
|
* a consequence are subject to change.
|
| 405 |
56c100ab
|
Erik Fonnesbeck
|
*
|
| 406 |
03ab9b30
|
Ermal
|
* @param String $ip the IP address in Hex format,
|
| 407 |
56c100ab
|
Erik Fonnesbeck
|
* compressed IPs are allowed
|
| 408 |
|
|
*
|
| 409 |
bf416e49
|
Ermal
|
* @return int one of the address type constants
|
| 410 |
56c100ab
|
Erik Fonnesbeck
|
* @access public
|
| 411 |
|
|
* @since 1.1.0
|
| 412 |
|
|
* @static
|
| 413 |
|
|
*
|
| 414 |
|
|
* @see NET_IPV6_UNASSIGNED
|
| 415 |
|
|
* @see NET_IPV6_RESERVED
|
| 416 |
|
|
* @see NET_IPV6_RESERVED_NSAP
|
| 417 |
|
|
* @see NET_IPV6_RESERVED_IPX
|
| 418 |
|
|
* @see NET_IPV6_RESERVED_UNICAST_GEOGRAPHIC
|
| 419 |
|
|
* @see NET_IPV6_UNICAST_PROVIDER
|
| 420 |
|
|
* @see NET_IPV6_MULTICAST
|
| 421 |
|
|
* @see NET_IPV6_LOCAL_LINK
|
| 422 |
|
|
* @see NET_IPV6_LOCAL_SITE
|
| 423 |
b37a2e8c
|
Phil Davis
|
* @see NET_IPV6_IPV4MAPPING
|
| 424 |
|
|
* @see NET_IPV6_UNSPECIFIED
|
| 425 |
|
|
* @see NET_IPV6_LOOPBACK
|
| 426 |
56c100ab
|
Erik Fonnesbeck
|
* @see NET_IPV6_UNKNOWN_TYPE
|
| 427 |
|
|
*/
|
| 428 |
b37a2e8c
|
Phil Davis
|
static function getAddressType($ip)
|
| 429 |
56c100ab
|
Erik Fonnesbeck
|
{
|
| 430 |
|
|
$ip = Net_IPv6::removeNetmaskSpec($ip);
|
| 431 |
|
|
$binip = Net_IPv6::_ip2Bin($ip);
|
| 432 |
|
|
|
| 433 |
03ab9b30
|
Ermal
|
if(0 == strncmp(str_repeat('0', 128), $binip, 128)) { // ::/128
|
| 434 |
|
|
|
| 435 |
|
|
return NET_IPV6_UNSPECIFIED;
|
| 436 |
|
|
|
| 437 |
|
|
} else if(0 == strncmp(str_repeat('0', 127).'1', $binip, 128)) { // ::/128
|
| 438 |
|
|
|
| 439 |
|
|
return NET_IPV6_LOOPBACK;
|
| 440 |
|
|
|
| 441 |
|
|
} else if (0 == strncmp(str_repeat('0', 80).str_repeat('1', 16), $binip, 96)) { // ::ffff/96
|
| 442 |
|
|
|
| 443 |
b37a2e8c
|
Phil Davis
|
return NET_IPV6_IPV4MAPPING;
|
| 444 |
03ab9b30
|
Ermal
|
|
| 445 |
|
|
} else if (0 == strncmp('1111111010', $binip, 10)) {
|
| 446 |
56c100ab
|
Erik Fonnesbeck
|
|
| 447 |
|
|
return NET_IPV6_LOCAL_LINK;
|
| 448 |
|
|
|
| 449 |
|
|
} else if (0 == strncmp('1111111011', $binip, 10)) {
|
| 450 |
|
|
|
| 451 |
|
|
return NET_IPV6_LOCAL_SITE;
|
| 452 |
|
|
|
| 453 |
|
|
} else if (0 == strncmp('111111100', $binip, 9)) {
|
| 454 |
|
|
|
| 455 |
|
|
return NET_IPV6_UNASSIGNED;
|
| 456 |
|
|
|
| 457 |
|
|
} else if (0 == strncmp('11111111', $binip, 8)) {
|
| 458 |
|
|
|
| 459 |
|
|
return NET_IPV6_MULTICAST;
|
| 460 |
|
|
|
| 461 |
b37a2e8c
|
Phil Davis
|
} else if (0 == strncmp('00000000', $binip, 8)) {
|
| 462 |
56c100ab
|
Erik Fonnesbeck
|
|
| 463 |
|
|
return NET_IPV6_RESERVED;
|
| 464 |
|
|
|
| 465 |
03ab9b30
|
Ermal
|
} else if (0 == strncmp('00000001', $binip, 8)
|
| 466 |
56c100ab
|
Erik Fonnesbeck
|
|| 0 == strncmp('1111110', $binip, 7)) {
|
| 467 |
|
|
|
| 468 |
|
|
return NET_IPV6_UNASSIGNED;
|
| 469 |
|
|
|
| 470 |
|
|
} else if (0 == strncmp('0000001', $binip, 7)) {
|
| 471 |
|
|
|
| 472 |
|
|
return NET_IPV6_RESERVED_NSAP;
|
| 473 |
|
|
|
| 474 |
|
|
} else if (0 == strncmp('0000010', $binip, 7)) {
|
| 475 |
|
|
|
| 476 |
91f026b0
|
ayvis
|
return NET_IPV6_RESERVED_IPX;
|
| 477 |
56c100ab
|
Erik Fonnesbeck
|
|
| 478 |
|
|
} else if (0 == strncmp('0000011', $binip, 7) ||
|
| 479 |
|
|
0 == strncmp('111110', $binip, 6) ||
|
| 480 |
|
|
0 == strncmp('11110', $binip, 5) ||
|
| 481 |
|
|
0 == strncmp('00001', $binip, 5) ||
|
| 482 |
|
|
0 == strncmp('1110', $binip, 4) ||
|
| 483 |
|
|
0 == strncmp('0001', $binip, 4) ||
|
| 484 |
|
|
0 == strncmp('001', $binip, 3) ||
|
| 485 |
|
|
0 == strncmp('011', $binip, 3) ||
|
| 486 |
|
|
0 == strncmp('101', $binip, 3) ||
|
| 487 |
|
|
0 == strncmp('110', $binip, 3)) {
|
| 488 |
|
|
|
| 489 |
|
|
return NET_IPV6_UNASSIGNED;
|
| 490 |
|
|
|
| 491 |
|
|
} else if (0 == strncmp('010', $binip, 3)) {
|
| 492 |
|
|
|
| 493 |
|
|
return NET_IPV6_UNICAST_PROVIDER;
|
| 494 |
|
|
|
| 495 |
03ab9b30
|
Ermal
|
} else if (0 == strncmp('100', $binip, 3)) {
|
| 496 |
56c100ab
|
Erik Fonnesbeck
|
|
| 497 |
|
|
return NET_IPV6_RESERVED_UNICAST_GEOGRAPHIC;
|
| 498 |
|
|
|
| 499 |
|
|
}
|
| 500 |
|
|
|
| 501 |
|
|
return NET_IPV6_UNKNOWN_TYPE;
|
| 502 |
|
|
}
|
| 503 |
|
|
|
| 504 |
|
|
// }}}
|
| 505 |
|
|
// {{{ Uncompress()
|
| 506 |
|
|
|
| 507 |
|
|
/**
|
| 508 |
bf416e49
|
Ermal
|
* Uncompresses an IPv6 address
|
| 509 |
56c100ab
|
Erik Fonnesbeck
|
*
|
| 510 |
bf416e49
|
Ermal
|
* RFC 2373 allows you to compress zeros in an address to '::'. This
|
| 511 |
|
|
* function expects a valid IPv6 address and expands the '::' to
|
| 512 |
56c100ab
|
Erik Fonnesbeck
|
* the required zeros.
|
| 513 |
|
|
*
|
| 514 |
|
|
* Example: FF01::101 -> FF01:0:0:0:0:0:0:101
|
| 515 |
|
|
* ::1 -> 0:0:0:0:0:0:0:1
|
| 516 |
|
|
*
|
| 517 |
bf416e49
|
Ermal
|
* Note: You can also pass an invalid IPv6 address (usually as part of the process
|
| 518 |
|
|
* of validation by checkIPv6, which will validate the return string).
|
| 519 |
|
|
* This function will insert the "0" between "::" even if this results in too many
|
| 520 |
|
|
* numbers in total. It is NOT the purpose of this function to validate your input.
|
| 521 |
|
|
*
|
| 522 |
|
|
* Example of calling with invalid input: 1::2:3:4:5:6:7:8:9 -> 1:0:2:3:4:5:6:7:8:9
|
| 523 |
|
|
*
|
| 524 |
|
|
* @param String $ip a (possibly) valid IPv6-address (hex format)
|
| 525 |
b37a2e8c
|
Phil Davis
|
* @param Boolean $leadingZeros if true, leading zeros are added to each
|
| 526 |
|
|
* block of the address
|
| 527 |
|
|
* (FF01::101 ->
|
| 528 |
|
|
* FF01:0000:0000:0000:0000:0000:0000:0101)
|
| 529 |
03ab9b30
|
Ermal
|
*
|
| 530 |
bf416e49
|
Ermal
|
* @return String the uncompressed IPv6-address (hex format)
|
| 531 |
56c100ab
|
Erik Fonnesbeck
|
* @access public
|
| 532 |
|
|
* @see Compress()
|
| 533 |
|
|
* @static
|
| 534 |
03ab9b30
|
Ermal
|
* @author Pascal Uhlmann
|
| 535 |
56c100ab
|
Erik Fonnesbeck
|
*/
|
| 536 |
b85d9c61
|
Ermal LUÇI
|
static function uncompress($ip, $leadingZeros = false)
|
| 537 |
56c100ab
|
Erik Fonnesbeck
|
{
|
| 538 |
|
|
|
| 539 |
|
|
$prefix = Net_IPv6::getPrefixLength($ip);
|
| 540 |
|
|
|
| 541 |
|
|
if (false === $prefix) {
|
| 542 |
|
|
|
| 543 |
|
|
$prefix = '';
|
| 544 |
|
|
|
| 545 |
|
|
} else {
|
| 546 |
|
|
|
| 547 |
|
|
$ip = Net_IPv6::removePrefixLength($ip);
|
| 548 |
|
|
$prefix = '/'.$prefix;
|
| 549 |
|
|
|
| 550 |
|
|
}
|
| 551 |
|
|
|
| 552 |
|
|
$netmask = Net_IPv6::getNetmaskSpec($ip);
|
| 553 |
|
|
$uip = Net_IPv6::removeNetmaskSpec($ip);
|
| 554 |
|
|
|
| 555 |
|
|
$c1 = -1;
|
| 556 |
|
|
$c2 = -1;
|
| 557 |
|
|
|
| 558 |
|
|
if (false !== strpos($uip, '::') ) {
|
| 559 |
|
|
|
| 560 |
|
|
list($ip1, $ip2) = explode('::', $uip);
|
| 561 |
|
|
|
| 562 |
03ab9b30
|
Ermal
|
if ("" == $ip1) {
|
| 563 |
56c100ab
|
Erik Fonnesbeck
|
|
| 564 |
|
|
$c1 = -1;
|
| 565 |
|
|
|
| 566 |
|
|
} else {
|
| 567 |
|
|
|
| 568 |
|
|
$pos = 0;
|
| 569 |
|
|
|
| 570 |
|
|
if (0 < ($pos = substr_count($ip1, ':'))) {
|
| 571 |
|
|
|
| 572 |
|
|
$c1 = $pos;
|
| 573 |
|
|
|
| 574 |
|
|
} else {
|
| 575 |
|
|
|
| 576 |
|
|
$c1 = 0;
|
| 577 |
|
|
|
| 578 |
|
|
}
|
| 579 |
|
|
}
|
| 580 |
|
|
if ("" == $ip2) {
|
| 581 |
|
|
|
| 582 |
|
|
$c2 = -1;
|
| 583 |
|
|
|
| 584 |
|
|
} else {
|
| 585 |
|
|
|
| 586 |
|
|
$pos = 0;
|
| 587 |
|
|
|
| 588 |
|
|
if (0 < ($pos = substr_count($ip2, ':'))) {
|
| 589 |
|
|
|
| 590 |
|
|
$c2 = $pos;
|
| 591 |
|
|
|
| 592 |
|
|
} else {
|
| 593 |
|
|
|
| 594 |
|
|
$c2 = 0;
|
| 595 |
|
|
|
| 596 |
|
|
}
|
| 597 |
|
|
|
| 598 |
|
|
}
|
| 599 |
|
|
|
| 600 |
|
|
if (strstr($ip2, '.')) {
|
| 601 |
|
|
|
| 602 |
|
|
$c2++;
|
| 603 |
|
|
|
| 604 |
|
|
}
|
| 605 |
|
|
if (-1 == $c1 && -1 == $c2) { // ::
|
| 606 |
|
|
|
| 607 |
|
|
$uip = "0:0:0:0:0:0:0:0";
|
| 608 |
|
|
|
| 609 |
|
|
} else if (-1 == $c1) { // ::xxx
|
| 610 |
|
|
|
| 611 |
|
|
$fill = str_repeat('0:', 7-$c2);
|
| 612 |
|
|
$uip = str_replace('::', $fill, $uip);
|
| 613 |
|
|
|
| 614 |
|
|
} else if (-1 == $c2) { // xxx::
|
| 615 |
|
|
|
| 616 |
|
|
$fill = str_repeat(':0', 7-$c1);
|
| 617 |
|
|
$uip = str_replace('::', $fill, $uip);
|
| 618 |
|
|
|
| 619 |
|
|
} else { // xxx::xxx
|
| 620 |
|
|
|
| 621 |
bf416e49
|
Ermal
|
$fill = str_repeat(':0:', max(1, 6-$c2-$c1));
|
| 622 |
56c100ab
|
Erik Fonnesbeck
|
$uip = str_replace('::', $fill, $uip);
|
| 623 |
|
|
$uip = str_replace('::', ':', $uip);
|
| 624 |
|
|
|
| 625 |
|
|
}
|
| 626 |
|
|
}
|
| 627 |
03ab9b30
|
Ermal
|
|
| 628 |
|
|
if(true == $leadingZeros) {
|
| 629 |
b37a2e8c
|
Phil Davis
|
|
| 630 |
03ab9b30
|
Ermal
|
$uipT = array();
|
| 631 |
|
|
$uiparts = explode(':', $uip);
|
| 632 |
|
|
|
| 633 |
|
|
foreach($uiparts as $p) {
|
| 634 |
|
|
|
| 635 |
|
|
$uipT[] = sprintf('%04s', $p);
|
| 636 |
b37a2e8c
|
Phil Davis
|
|
| 637 |
03ab9b30
|
Ermal
|
}
|
| 638 |
|
|
|
| 639 |
|
|
$uip = implode(':', $uipT);
|
| 640 |
|
|
}
|
| 641 |
|
|
|
| 642 |
56c100ab
|
Erik Fonnesbeck
|
if ('' != $netmask) {
|
| 643 |
|
|
|
| 644 |
|
|
$uip = $uip.'/'.$netmask;
|
| 645 |
|
|
|
| 646 |
|
|
}
|
| 647 |
|
|
|
| 648 |
|
|
return $uip.$prefix;
|
| 649 |
|
|
}
|
| 650 |
|
|
|
| 651 |
|
|
// }}}
|
| 652 |
|
|
// {{{ Compress()
|
| 653 |
|
|
|
| 654 |
|
|
/**
|
| 655 |
bf416e49
|
Ermal
|
* Compresses an IPv6 address
|
| 656 |
56c100ab
|
Erik Fonnesbeck
|
*
|
| 657 |
bf416e49
|
Ermal
|
* RFC 2373 allows you to compress zeros in an address to '::'. This
|
| 658 |
|
|
* function expects a valid IPv6 address and compresses successive zeros
|
| 659 |
56c100ab
|
Erik Fonnesbeck
|
* to '::'
|
| 660 |
|
|
*
|
| 661 |
|
|
* Example: FF01:0:0:0:0:0:0:101 -> FF01::101
|
| 662 |
|
|
* 0:0:0:0:0:0:0:1 -> ::1
|
| 663 |
|
|
*
|
| 664 |
b37a2e8c
|
Phil Davis
|
* When $ip is an already compressed address and $force is false, the method returns
|
| 665 |
bf416e49
|
Ermal
|
* the value as is, even if the address can be compressed further.
|
| 666 |
03ab9b30
|
Ermal
|
*
|
| 667 |
|
|
* Example: FF01::0:1 -> FF01::0:1
|
| 668 |
|
|
*
|
| 669 |
|
|
* To enforce maximum compression, you can set the second argument $force to true.
|
| 670 |
|
|
*
|
| 671 |
b37a2e8c
|
Phil Davis
|
* Example: FF01::0:1 -> FF01::1
|
| 672 |
03ab9b30
|
Ermal
|
*
|
| 673 |
bf416e49
|
Ermal
|
* @param String $ip a valid IPv6-address (hex format)
|
| 674 |
|
|
* @param boolean $force if true the address will be compressed as best as possible (since 1.2.0)
|
| 675 |
03ab9b30
|
Ermal
|
*
|
| 676 |
bf416e49
|
Ermal
|
* @return String the compressed IPv6-address (hex format)
|
| 677 |
56c100ab
|
Erik Fonnesbeck
|
* @access public
|
| 678 |
03ab9b30
|
Ermal
|
* @see Uncompress()
|
| 679 |
56c100ab
|
Erik Fonnesbeck
|
* @static
|
| 680 |
|
|
* @author elfrink at introweb dot nl
|
| 681 |
|
|
*/
|
| 682 |
b37a2e8c
|
Phil Davis
|
static function compress($ip, $force = false)
|
| 683 |
56c100ab
|
Erik Fonnesbeck
|
{
|
| 684 |
b37a2e8c
|
Phil Davis
|
|
| 685 |
03ab9b30
|
Ermal
|
if(false !== strpos($ip, '::')) { // its already compressed
|
| 686 |
|
|
|
| 687 |
|
|
if(true == $force) {
|
| 688 |
|
|
|
| 689 |
b37a2e8c
|
Phil Davis
|
$ip = Net_IPv6::uncompress($ip);
|
| 690 |
03ab9b30
|
Ermal
|
|
| 691 |
|
|
} else {
|
| 692 |
|
|
|
| 693 |
|
|
return $ip;
|
| 694 |
|
|
|
| 695 |
|
|
}
|
| 696 |
|
|
|
| 697 |
|
|
}
|
| 698 |
|
|
|
| 699 |
56c100ab
|
Erik Fonnesbeck
|
$prefix = Net_IPv6::getPrefixLength($ip);
|
| 700 |
|
|
|
| 701 |
|
|
if (false === $prefix) {
|
| 702 |
|
|
|
| 703 |
|
|
$prefix = '';
|
| 704 |
|
|
|
| 705 |
|
|
} else {
|
| 706 |
|
|
|
| 707 |
|
|
$ip = Net_IPv6::removePrefixLength($ip);
|
| 708 |
|
|
$prefix = '/'.$prefix;
|
| 709 |
|
|
|
| 710 |
|
|
}
|
| 711 |
|
|
|
| 712 |
|
|
$netmask = Net_IPv6::getNetmaskSpec($ip);
|
| 713 |
|
|
$ip = Net_IPv6::removeNetmaskSpec($ip);
|
| 714 |
|
|
|
| 715 |
03ab9b30
|
Ermal
|
$ipp = explode(':', $ip);
|
| 716 |
56c100ab
|
Erik Fonnesbeck
|
|
| 717 |
03ab9b30
|
Ermal
|
for ($i = 0; $i < count($ipp); $i++) {
|
| 718 |
56c100ab
|
Erik Fonnesbeck
|
|
| 719 |
03ab9b30
|
Ermal
|
$ipp[$i] = dechex(hexdec($ipp[$i]));
|
| 720 |
56c100ab
|
Erik Fonnesbeck
|
|
| 721 |
03ab9b30
|
Ermal
|
}
|
| 722 |
56c100ab
|
Erik Fonnesbeck
|
|
| 723 |
03ab9b30
|
Ermal
|
$cip = ':' . join(':', $ipp) . ':';
|
| 724 |
56c100ab
|
Erik Fonnesbeck
|
|
| 725 |
bf416e49
|
Ermal
|
preg_match_all("/(:0)(:0)+/", $cip, $zeros);
|
| 726 |
56c100ab
|
Erik Fonnesbeck
|
|
| 727 |
03ab9b30
|
Ermal
|
if (count($zeros[0]) > 0) {
|
| 728 |
56c100ab
|
Erik Fonnesbeck
|
|
| 729 |
03ab9b30
|
Ermal
|
$match = '';
|
| 730 |
56c100ab
|
Erik Fonnesbeck
|
|
| 731 |
03ab9b30
|
Ermal
|
foreach ($zeros[0] as $zero) {
|
| 732 |
56c100ab
|
Erik Fonnesbeck
|
|
| 733 |
03ab9b30
|
Ermal
|
if (strlen($zero) > strlen($match)) {
|
| 734 |
56c100ab
|
Erik Fonnesbeck
|
|
| 735 |
03ab9b30
|
Ermal
|
$match = $zero;
|
| 736 |
56c100ab
|
Erik Fonnesbeck
|
|
| 737 |
|
|
}
|
| 738 |
03ab9b30
|
Ermal
|
}
|
| 739 |
56c100ab
|
Erik Fonnesbeck
|
|
| 740 |
03ab9b30
|
Ermal
|
$cip = preg_replace('/' . $match . '/', ':', $cip, 1);
|
| 741 |
56c100ab
|
Erik Fonnesbeck
|
|
| 742 |
03ab9b30
|
Ermal
|
}
|
| 743 |
56c100ab
|
Erik Fonnesbeck
|
|
| 744 |
03ab9b30
|
Ermal
|
$cip = preg_replace('/((^:)|(:$))/', '', $cip);
|
| 745 |
|
|
$cip = preg_replace('/((^:)|(:$))/', '::', $cip);
|
| 746 |
56c100ab
|
Erik Fonnesbeck
|
|
| 747 |
09c7e42c
|
Daniel Becker
|
if (empty($cip)) {
|
| 748 |
|
|
|
| 749 |
|
|
$cip = "::";
|
| 750 |
|
|
|
| 751 |
|
|
}
|
| 752 |
|
|
|
| 753 |
03ab9b30
|
Ermal
|
if ('' != $netmask) {
|
| 754 |
56c100ab
|
Erik Fonnesbeck
|
|
| 755 |
03ab9b30
|
Ermal
|
$cip = $cip.'/'.$netmask;
|
| 756 |
56c100ab
|
Erik Fonnesbeck
|
|
| 757 |
03ab9b30
|
Ermal
|
}
|
| 758 |
|
|
|
| 759 |
|
|
return $cip.$prefix;
|
| 760 |
56c100ab
|
Erik Fonnesbeck
|
|
| 761 |
|
|
}
|
| 762 |
|
|
|
| 763 |
03ab9b30
|
Ermal
|
// }}}
|
| 764 |
bf416e49
|
Ermal
|
// {{{ recommendedFormat()
|
| 765 |
|
|
/**
|
| 766 |
|
|
* Represent IPv6 address in RFC5952 format.
|
| 767 |
|
|
*
|
| 768 |
|
|
* @param String $ip a valid IPv6-address (hex format)
|
| 769 |
|
|
*
|
| 770 |
|
|
* @return String the recommended representation of IPv6-address (hex format)
|
| 771 |
|
|
* @access public
|
| 772 |
|
|
* @see compress()
|
| 773 |
|
|
* @static
|
| 774 |
|
|
* @author koyama at hoge dot org
|
| 775 |
|
|
* @todo This method may become a part of compress() in a further releases
|
| 776 |
|
|
*/
|
| 777 |
b85d9c61
|
Ermal LUÇI
|
static function recommendedFormat($ip)
|
| 778 |
bf416e49
|
Ermal
|
{
|
| 779 |
|
|
$compressed = self::compress($ip, true);
|
| 780 |
|
|
// RFC5952 4.2.2
|
| 781 |
|
|
// The symbol "::" MUST NOT be used to shorten just one
|
| 782 |
|
|
// 16-bit 0 field.
|
| 783 |
|
|
if ((substr_count($compressed, ':') == 7) &&
|
| 784 |
|
|
(strpos($compressed, '::') !== false)) {
|
| 785 |
|
|
$compressed = str_replace('::', ':0:', $compressed);
|
| 786 |
|
|
}
|
| 787 |
|
|
return $compressed;
|
| 788 |
|
|
}
|
| 789 |
|
|
// }}}
|
| 790 |
|
|
|
| 791 |
03ab9b30
|
Ermal
|
// {{{ isCompressible()
|
| 792 |
|
|
|
| 793 |
|
|
/**
|
| 794 |
bf416e49
|
Ermal
|
* Checks, if an IPv6 address can be compressed
|
| 795 |
03ab9b30
|
Ermal
|
*
|
| 796 |
bf416e49
|
Ermal
|
* @param String $ip a valid IPv6 address
|
| 797 |
b37a2e8c
|
Phil Davis
|
*
|
| 798 |
bf416e49
|
Ermal
|
* @return Boolean true, if address can be compressed
|
| 799 |
b37a2e8c
|
Phil Davis
|
*
|
| 800 |
03ab9b30
|
Ermal
|
* @access public
|
| 801 |
|
|
* @since 1.2.0b
|
| 802 |
|
|
* @static
|
| 803 |
|
|
* @author Manuel Schmitt
|
| 804 |
|
|
*/
|
| 805 |
b37a2e8c
|
Phil Davis
|
static function isCompressible($ip)
|
| 806 |
03ab9b30
|
Ermal
|
{
|
| 807 |
|
|
|
| 808 |
|
|
return (bool)($ip != Net_IPv6::compress($address));
|
| 809 |
|
|
|
| 810 |
b37a2e8c
|
Phil Davis
|
}
|
| 811 |
03ab9b30
|
Ermal
|
|
| 812 |
56c100ab
|
Erik Fonnesbeck
|
// }}}
|
| 813 |
|
|
// {{{ SplitV64()
|
| 814 |
|
|
|
| 815 |
|
|
/**
|
| 816 |
bf416e49
|
Ermal
|
* Splits an IPv6 address into the IPv6 and a possible IPv4 part
|
| 817 |
56c100ab
|
Erik Fonnesbeck
|
*
|
| 818 |
bf416e49
|
Ermal
|
* RFC 2373 allows you to note the last two parts of an IPv6 address as
|
| 819 |
|
|
* an IPv4 compatible address
|
| 820 |
56c100ab
|
Erik Fonnesbeck
|
*
|
| 821 |
|
|
* Example: 0:0:0:0:0:0:13.1.68.3
|
| 822 |
|
|
* 0:0:0:0:0:FFFF:129.144.52.38
|
| 823 |
|
|
*
|
| 824 |
bf416e49
|
Ermal
|
* @param String $ip a valid IPv6-address (hex format)
|
| 825 |
b37a2e8c
|
Phil Davis
|
* @param Boolean $uncompress if true, the address will be uncompressed
|
| 826 |
03ab9b30
|
Ermal
|
* before processing
|
| 827 |
56c100ab
|
Erik Fonnesbeck
|
*
|
| 828 |
03ab9b30
|
Ermal
|
* @return Array [0] contains the IPv6 part,
|
| 829 |
56c100ab
|
Erik Fonnesbeck
|
* [1] the IPv4 part (hex format)
|
| 830 |
|
|
* @access public
|
| 831 |
|
|
* @static
|
| 832 |
|
|
*/
|
| 833 |
b85d9c61
|
Ermal LUÇI
|
static function SplitV64($ip, $uncompress = true)
|
| 834 |
56c100ab
|
Erik Fonnesbeck
|
{
|
| 835 |
|
|
$ip = Net_IPv6::removeNetmaskSpec($ip);
|
| 836 |
|
|
|
| 837 |
|
|
if ($uncompress) {
|
| 838 |
|
|
|
| 839 |
|
|
$ip = Net_IPv6::Uncompress($ip);
|
| 840 |
|
|
|
| 841 |
|
|
}
|
| 842 |
|
|
|
| 843 |
|
|
if (strstr($ip, '.')) {
|
| 844 |
|
|
|
| 845 |
|
|
$pos = strrpos($ip, ':');
|
| 846 |
|
|
$ip{$pos} = '_';
|
| 847 |
|
|
$ipPart = explode('_', $ip);
|
| 848 |
|
|
|
| 849 |
|
|
return $ipPart;
|
| 850 |
|
|
|
| 851 |
|
|
} else {
|
| 852 |
|
|
|
| 853 |
|
|
return array($ip, "");
|
| 854 |
|
|
|
| 855 |
|
|
}
|
| 856 |
|
|
}
|
| 857 |
|
|
|
| 858 |
|
|
// }}}
|
| 859 |
|
|
// {{{ checkIPv6()
|
| 860 |
|
|
|
| 861 |
|
|
/**
|
| 862 |
bf416e49
|
Ermal
|
* Checks an IPv6 address
|
| 863 |
56c100ab
|
Erik Fonnesbeck
|
*
|
| 864 |
|
|
* Checks if the given IP is IPv6-compatible
|
| 865 |
|
|
*
|
| 866 |
bf416e49
|
Ermal
|
* @param String $ip a valid IPv6-address
|
| 867 |
03ab9b30
|
Ermal
|
*
|
| 868 |
bf416e49
|
Ermal
|
* @return Boolean true if $ip is an IPv6 address
|
| 869 |
56c100ab
|
Erik Fonnesbeck
|
* @access public
|
| 870 |
|
|
* @static
|
| 871 |
|
|
*/
|
| 872 |
b85d9c61
|
Ermal LUÇI
|
static function checkIPv6($ip)
|
| 873 |
56c100ab
|
Erik Fonnesbeck
|
{
|
| 874 |
bf416e49
|
Ermal
|
|
| 875 |
|
|
$elements = Net_IPv6::separate($ip);
|
| 876 |
b37a2e8c
|
Phil Davis
|
|
| 877 |
bf416e49
|
Ermal
|
$ip = $elements[0];
|
| 878 |
|
|
|
| 879 |
8b731067
|
Ermal
|
if('' != $elements[1] && ( !is_numeric($elements[1]) || 0 > $elements[1] || 128 < $elements[1])) {
|
| 880 |
bf416e49
|
Ermal
|
|
| 881 |
|
|
return false;
|
| 882 |
|
|
|
| 883 |
b37a2e8c
|
Phil Davis
|
}
|
| 884 |
56c100ab
|
Erik Fonnesbeck
|
|
| 885 |
|
|
$ipPart = Net_IPv6::SplitV64($ip);
|
| 886 |
|
|
$count = 0;
|
| 887 |
|
|
|
| 888 |
03ab9b30
|
Ermal
|
if (!empty($ipPart[0])) {
|
| 889 |
bf416e49
|
Ermal
|
$ipv6 = explode(':', $ipPart[0]);
|
| 890 |
|
|
|
| 891 |
|
|
foreach($ipv6 as $element) { // made a validate precheck
|
| 892 |
|
|
if(!preg_match('/[0-9a-fA-F]*/', $element)) {
|
| 893 |
|
|
return false;
|
| 894 |
|
|
}
|
| 895 |
|
|
}
|
| 896 |
56c100ab
|
Erik Fonnesbeck
|
|
| 897 |
|
|
for ($i = 0; $i < count($ipv6); $i++) {
|
| 898 |
|
|
|
| 899 |
03ab9b30
|
Ermal
|
if(4 < strlen($ipv6[$i])) {
|
| 900 |
b37a2e8c
|
Phil Davis
|
|
| 901 |
03ab9b30
|
Ermal
|
return false;
|
| 902 |
|
|
|
| 903 |
|
|
}
|
| 904 |
|
|
|
| 905 |
56c100ab
|
Erik Fonnesbeck
|
$dec = hexdec($ipv6[$i]);
|
| 906 |
|
|
$hex = strtoupper(preg_replace("/^[0]{1,3}(.*[0-9a-fA-F])$/",
|
| 907 |
b37a2e8c
|
Phil Davis
|
"\\1",
|
| 908 |
56c100ab
|
Erik Fonnesbeck
|
$ipv6[$i]));
|
| 909 |
|
|
|
| 910 |
|
|
if ($ipv6[$i] >= 0 && $dec <= 65535
|
| 911 |
|
|
&& $hex == strtoupper(dechex($dec))) {
|
| 912 |
|
|
|
| 913 |
|
|
$count++;
|
| 914 |
|
|
|
| 915 |
|
|
}
|
| 916 |
|
|
|
| 917 |
|
|
}
|
| 918 |
|
|
|
| 919 |
|
|
if (8 == $count) {
|
| 920 |
|
|
|
| 921 |
|
|
return true;
|
| 922 |
|
|
|
| 923 |
|
|
} else if (6 == $count and !empty($ipPart[1])) {
|
| 924 |
|
|
|
| 925 |
03ab9b30
|
Ermal
|
$ipv4 = explode('.', $ipPart[1]);
|
| 926 |
56c100ab
|
Erik Fonnesbeck
|
$count = 0;
|
| 927 |
|
|
|
| 928 |
|
|
for ($i = 0; $i < count($ipv4); $i++) {
|
| 929 |
|
|
|
| 930 |
|
|
if ($ipv4[$i] >= 0 && (integer)$ipv4[$i] <= 255
|
| 931 |
|
|
&& preg_match("/^\d{1,3}$/", $ipv4[$i])) {
|
| 932 |
|
|
|
| 933 |
|
|
$count++;
|
| 934 |
|
|
|
| 935 |
|
|
}
|
| 936 |
|
|
|
| 937 |
|
|
}
|
| 938 |
|
|
|
| 939 |
|
|
if (4 == $count) {
|
| 940 |
|
|
|
| 941 |
|
|
return true;
|
| 942 |
|
|
|
| 943 |
|
|
}
|
| 944 |
|
|
|
| 945 |
|
|
} else {
|
| 946 |
|
|
|
| 947 |
|
|
return false;
|
| 948 |
|
|
|
| 949 |
|
|
}
|
| 950 |
|
|
|
| 951 |
|
|
} else {
|
| 952 |
|
|
|
| 953 |
|
|
return false;
|
| 954 |
|
|
|
| 955 |
|
|
}
|
| 956 |
|
|
|
| 957 |
|
|
}
|
| 958 |
|
|
|
| 959 |
|
|
// }}}
|
| 960 |
|
|
|
| 961 |
|
|
// {{{ _parseAddress()
|
| 962 |
|
|
|
| 963 |
|
|
/**
|
| 964 |
|
|
* Returns the lowest and highest IPv6 address
|
| 965 |
|
|
* for a given IP and netmask specification
|
| 966 |
b37a2e8c
|
Phil Davis
|
*
|
| 967 |
|
|
* The netmask may be a part of the $ip or
|
| 968 |
bf416e49
|
Ermal
|
* the number of netmask bits is provided via $bits
|
| 969 |
56c100ab
|
Erik Fonnesbeck
|
*
|
| 970 |
|
|
* The result is an indexed array. The key 'start'
|
| 971 |
bf416e49
|
Ermal
|
* contains the lowest possible IP address. The key
|
| 972 |
56c100ab
|
Erik Fonnesbeck
|
* 'end' the highest address.
|
| 973 |
|
|
*
|
| 974 |
03ab9b30
|
Ermal
|
* @param String $ipToParse the IPv6 address
|
| 975 |
|
|
* @param String $bits the optional count of netmask bits
|
| 976 |
56c100ab
|
Erik Fonnesbeck
|
*
|
| 977 |
|
|
* @return Array ['start', 'end'] the lowest and highest IPv6 address
|
| 978 |
|
|
* @access public
|
| 979 |
|
|
* @static
|
| 980 |
|
|
* @author Nicholas Williams
|
| 981 |
|
|
*/
|
| 982 |
|
|
|
| 983 |
b85d9c61
|
Ermal LUÇI
|
static function parseAddress($ipToParse, $bits = null)
|
| 984 |
56c100ab
|
Erik Fonnesbeck
|
{
|
| 985 |
|
|
|
| 986 |
|
|
$ip = null;
|
| 987 |
|
|
$bitmask = null;
|
| 988 |
|
|
|
| 989 |
b37a2e8c
|
Phil Davis
|
if ( null == $bits ) {
|
| 990 |
56c100ab
|
Erik Fonnesbeck
|
|
| 991 |
03ab9b30
|
Ermal
|
$elements = explode('/', $ipToParse);
|
| 992 |
56c100ab
|
Erik Fonnesbeck
|
|
| 993 |
03ab9b30
|
Ermal
|
if ( 2 == count($elements) ) {
|
| 994 |
56c100ab
|
Erik Fonnesbeck
|
|
| 995 |
03ab9b30
|
Ermal
|
$ip = Net_IPv6::uncompress($elements[0]);
|
| 996 |
|
|
$bitmask = $elements[1];
|
| 997 |
56c100ab
|
Erik Fonnesbeck
|
|
| 998 |
03ab9b30
|
Ermal
|
} else {
|
| 999 |
56c100ab
|
Erik Fonnesbeck
|
|
| 1000 |
77148acc
|
Ermal
|
include_once 'PEAR.inc';
|
| 1001 |
56c100ab
|
Erik Fonnesbeck
|
|
| 1002 |
03ab9b30
|
Ermal
|
return PEAR::raiseError(NET_IPV6_NO_NETMASK_MSG,
|
| 1003 |
56c100ab
|
Erik Fonnesbeck
|
NET_IPV6_NO_NETMASK);
|
| 1004 |
03ab9b30
|
Ermal
|
}
|
| 1005 |
|
|
} else {
|
| 1006 |
56c100ab
|
Erik Fonnesbeck
|
|
| 1007 |
03ab9b30
|
Ermal
|
$ip = Net_IPv6::uncompress($ipToParse);
|
| 1008 |
|
|
$bitmask = $bits;
|
| 1009 |
56c100ab
|
Erik Fonnesbeck
|
|
| 1010 |
03ab9b30
|
Ermal
|
}
|
| 1011 |
56c100ab
|
Erik Fonnesbeck
|
|
| 1012 |
03ab9b30
|
Ermal
|
$binNetmask = str_repeat('1', $bitmask).
|
| 1013 |
56c100ab
|
Erik Fonnesbeck
|
str_repeat('0', 128 - $bitmask);
|
| 1014 |
03ab9b30
|
Ermal
|
$maxNetmask = str_repeat('1', 128);
|
| 1015 |
|
|
$netmask = Net_IPv6::_bin2Ip($binNetmask);
|
| 1016 |
56c100ab
|
Erik Fonnesbeck
|
|
| 1017 |
03ab9b30
|
Ermal
|
$startAddress = Net_IPv6::_bin2Ip(Net_IPv6::_ip2Bin($ip)
|
| 1018 |
|
|
& $binNetmask);
|
| 1019 |
|
|
$endAddress = Net_IPv6::_bin2Ip(Net_IPv6::_ip2Bin($ip)
|
| 1020 |
|
|
| ($binNetmask ^ $maxNetmask));
|
| 1021 |
56c100ab
|
Erik Fonnesbeck
|
|
| 1022 |
03ab9b30
|
Ermal
|
return array('start' => $startAddress, 'end' => $endAddress);
|
| 1023 |
56c100ab
|
Erik Fonnesbeck
|
}
|
| 1024 |
|
|
|
| 1025 |
|
|
// }}}
|
| 1026 |
|
|
|
| 1027 |
|
|
// {{{ _ip2Bin()
|
| 1028 |
|
|
|
| 1029 |
|
|
/**
|
| 1030 |
|
|
* Converts an IPv6 address from Hex into Binary representation.
|
| 1031 |
|
|
*
|
| 1032 |
b37a2e8c
|
Phil Davis
|
* @param String $ip the IP to convert (a:b:c:d:e:f:g:h),
|
| 1033 |
56c100ab
|
Erik Fonnesbeck
|
* compressed IPs are allowed
|
| 1034 |
|
|
*
|
| 1035 |
|
|
* @return String the binary representation
|
| 1036 |
|
|
* @access private
|
| 1037 |
48fa3f3e
|
NewEraCracker
|
* @since 1.1.0
|
| 1038 |
56c100ab
|
Erik Fonnesbeck
|
*/
|
| 1039 |
b37a2e8c
|
Phil Davis
|
static function _ip2Bin($ip)
|
| 1040 |
56c100ab
|
Erik Fonnesbeck
|
{
|
| 1041 |
|
|
$binstr = '';
|
| 1042 |
|
|
|
| 1043 |
|
|
$ip = Net_IPv6::removeNetmaskSpec($ip);
|
| 1044 |
|
|
$ip = Net_IPv6::Uncompress($ip);
|
| 1045 |
|
|
|
| 1046 |
|
|
$parts = explode(':', $ip);
|
| 1047 |
|
|
|
| 1048 |
03ab9b30
|
Ermal
|
foreach ( $parts as $v ) {
|
| 1049 |
56c100ab
|
Erik Fonnesbeck
|
|
| 1050 |
|
|
$str = base_convert($v, 16, 2);
|
| 1051 |
|
|
$binstr .= str_pad($str, 16, '0', STR_PAD_LEFT);
|
| 1052 |
|
|
|
| 1053 |
|
|
}
|
| 1054 |
|
|
|
| 1055 |
|
|
return $binstr;
|
| 1056 |
|
|
}
|
| 1057 |
|
|
|
| 1058 |
|
|
// }}}
|
| 1059 |
|
|
// {{{ _bin2Ip()
|
| 1060 |
|
|
|
| 1061 |
|
|
/**
|
| 1062 |
|
|
* Converts an IPv6 address from Binary into Hex representation.
|
| 1063 |
|
|
*
|
| 1064 |
03ab9b30
|
Ermal
|
* @param String $bin the IP address as binary
|
| 1065 |
56c100ab
|
Erik Fonnesbeck
|
*
|
| 1066 |
|
|
* @return String the uncompressed Hex representation
|
| 1067 |
|
|
* @access private
|
| 1068 |
48fa3f3e
|
NewEraCracker
|
* @since 1.1.0
|
| 1069 |
56c100ab
|
Erik Fonnesbeck
|
*/
|
| 1070 |
b85d9c61
|
Ermal LUÇI
|
static function _bin2Ip($bin)
|
| 1071 |
56c100ab
|
Erik Fonnesbeck
|
{
|
| 1072 |
|
|
$ip = "";
|
| 1073 |
|
|
|
| 1074 |
|
|
if (strlen($bin) < 128) {
|
| 1075 |
|
|
|
| 1076 |
03ab9b30
|
Ermal
|
$bin = str_pad($bin, 128, '0', STR_PAD_LEFT);
|
| 1077 |
56c100ab
|
Erik Fonnesbeck
|
|
| 1078 |
|
|
}
|
| 1079 |
|
|
|
| 1080 |
|
|
$parts = str_split($bin, "16");
|
| 1081 |
|
|
|
| 1082 |
03ab9b30
|
Ermal
|
foreach ( $parts as $v ) {
|
| 1083 |
56c100ab
|
Erik Fonnesbeck
|
|
| 1084 |
|
|
$str = base_convert($v, 2, 16);
|
| 1085 |
|
|
$ip .= $str.":";
|
| 1086 |
|
|
|
| 1087 |
|
|
}
|
| 1088 |
|
|
|
| 1089 |
03ab9b30
|
Ermal
|
$ip = substr($ip, 0, -1);
|
| 1090 |
56c100ab
|
Erik Fonnesbeck
|
|
| 1091 |
|
|
return $ip;
|
| 1092 |
|
|
}
|
| 1093 |
|
|
|
| 1094 |
|
|
// }}}
|
| 1095 |
|
|
}
|
| 1096 |
|
|
// }}}
|
| 1097 |
|
|
|
| 1098 |
|
|
/*
|
| 1099 |
|
|
* Local variables:
|
| 1100 |
|
|
* tab-width: 4
|
| 1101 |
|
|
* c-basic-offset: 4
|
| 1102 |
|
|
* c-hanging-comment-ender-p: nil
|
| 1103 |
|
|
* End:
|
| 1104 |
|
|
*/
|
| 1105 |
|
|
|
| 1106 |
7405845f
|
Phil Davis
|
?>
|