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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) 2004-2016 Rubicon Communications, LLC (Netgate)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgment:
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* "This product includes software developed by the pfSense Project
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* for use in the pfSense® software distribution. (http://www.pfsense.org/).
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*
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* 4. The names "pfSense" and "pfSense Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* coreteam@pfsense.org.
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*
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* 5. Products derived from this software may not be called "pfSense"
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* nor may "pfSense" appear in their names without prior written
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* permission of the Electric Sheep Fencing, LLC.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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*
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* "This product includes software developed by the pfSense Project
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* for use in the pfSense software distribution (http://www.pfsense.org/).
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*
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* THIS SOFTWARE IS PROVIDED BY THE pfSense PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE pfSense PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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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, $config;
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if (!empty($interface_real)) {
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$interface = convert_real_interface_to_friendly_interface_name($interface_real);
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if (!empty($interface) && is_array($config['interfaces'][$interface]) && interface_isppp_type($interface)) {
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$ifcfg = $config['interfaces'][$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']) || $ifcfg['ipaddr']==='ppp')) {
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break;
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}
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// bring down dhcp6c if it is running
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$pidv6 = find_dhcp6c_process($interface_real);
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if ($pidv6) {
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posix_kill($pidv6, SIGTERM);
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sleep(3);
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}
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unlink_if_exists("{$g['varetc_path']}/dhcp6c_{$interface}.conf");
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// disable router advertisements (and therefore SLAAC)
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mwexec("/sbin/ifconfig " . escapeshellarg($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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global $config;
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if (!empty($interface_real)) {
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$interface = convert_real_interface_to_friendly_interface_name($interface_real);
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if (!empty($interface) && is_array($config['interfaces'][$interface]) && interface_isppp_type($interface)) {
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$ifcfg = $config['interfaces'][$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']) || $ifcfg['ipaddr']==='ppp')) {
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break;
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}
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$pidv6 = find_dhcp6c_process($interface_real);
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if (empty($pidv6)) {
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// only fire if router advertisements off
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// (if router advertisements are on, rtsold might be primed to fire dhcp6c already)
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exec("/sbin/ifconfig " . escapeshellarg($interface_real) . " inet6", $ifconfig_output);
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$start = true;
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foreach ($ifconfig_output as $output) {
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if (preg_match('{ \A .* ACCEPT_RTADV .* \Z}xmsi', $output)) {
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$start = false;
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break;
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}
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}
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if ($start) {
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interface_dhcpv6_configure($interface, $ifcfg);
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}
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}
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break;
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default:
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break;
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}
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}
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}
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}
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}
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// main entry point
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if ($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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