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#!/usr/local/bin/php -f
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<?php
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/*
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* ppp-ipv6
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*
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* part of pfSense (https://www.pfsense.org)
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* Copyright (c) 2004-2013 BSD Perimeter
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* Copyright (c) 2013-2016 Electric Sheep Fencing
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* Copyright (c) 2014-2025 Rubicon Communications, LLC (Netgate)
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* All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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require_once("globals.inc");
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require_once("interfaces.inc");
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function interface_ipv6_lower($interface_real) {
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global $g;
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if (!empty($interface_real)) {
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$interface = convert_real_interface_to_friendly_interface_name($interface_real);
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if (empty($interface)) {
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return;
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}
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$ifcfg = config_get_path("interfaces/{$interface}");
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if (!empty($interface) && is_array($ifcfg) && interface_isppp_type($interface)) {
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if (!empty($ifcfg['ipaddrv6'])) {
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switch ($ifcfg['ipaddrv6']) {
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case 'slaac':
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case 'dhcp6':
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// Take no action if dhcp6 is active on the parent interface, not the PPP interface
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if ((($ifcfg['ipaddrv6'] == 'dhcp6') && !isset($ifcfg['dhcp6usev4iface'])) ||
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(($ifcfg['ipaddrv6'] == 'slaac') && !isset($ifcfg['slaacusev4iface'])) ||
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!interface_isppp_type($interface)) {
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break;
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}
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// reconfigure dhcp6c if it is running
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interface_dhcpv6_configure($interface, $ifcfg, true);
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// disable router advertisements (and therefore SLAAC)
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mwexec("/sbin/ifconfig " . escapeshellarg($interface_real) . " inet6 -accept_rtadv");
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// remove any autoconfigured IPv6 addresses
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exec("/sbin/ifconfig " . escapeshellarg($interface_real) . " inet6", $ifconfig_output);
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foreach ($ifconfig_output as $output) {
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if (preg_match('{ \A \s+ inet6 \s+ (\S+) .* autoconf .* \Z}xmsi', $output, $matches)) {
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mwexec("/sbin/ifconfig " . escapeshellarg($interface_real) . " inet6 " . escapeshellarg($matches[1]) . " delete");
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}
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}
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break;
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default:
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break;
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}
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}
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}
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}
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}
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function interface_ipv6_raise($interface_real) {
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if (!empty($interface_real)) {
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$interface = convert_real_interface_to_friendly_interface_name($interface_real);
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if (empty($interface)) {
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return;
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}
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$ifcfg = config_get_path("interfaces/{$interface}");
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if (!empty($interface) && is_array($ifcfg) && interface_isppp_type($interface)) {
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if (!empty($ifcfg['ipaddrv6'])) {
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switch ($ifcfg['ipaddrv6']) {
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case 'slaac':
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case 'dhcp6':
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// Take no action if dhcp6 is active on the parent interface, not the PPP interface
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if ((($ifcfg['ipaddrv6'] == 'dhcp6') && !isset($ifcfg['dhcp6usev4iface'])) ||
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(($ifcfg['ipaddrv6'] == 'slaac') && !isset($ifcfg['slaacusev4iface'])) ||
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!interface_isppp_type($interface)) {
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break;
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}
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interface_dhcpv6_configure($interface, $ifcfg);
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break;
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default:
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break;
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}
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}
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}
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}
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}
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// main entry point
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if ($argc != 3) {
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goto error;
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}
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$interface_real = trim($argv[1], " \n\t");
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if (empty($interface_real)) {
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goto error;
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}
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switch (strtolower($argv[2])) {
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case 'up':
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interface_ipv6_raise($interface_real);
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break;
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case 'down':
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interface_ipv6_lower($interface_real);
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break;
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default:
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goto error;
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break;
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}
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exit(0);
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error:
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if (!empty($argv[0])) {
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echo("Usage: " . substr(strrchr('/' . $argv[0], '/'), 1) . " <PPP interface> up|down\n");
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}
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exit(1);
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?>
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