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#!/usr/local/bin/php -f
<?php
/*
* ppp-ipv6
*
* part of pfSense (https://www.pfsense.org)
* Copyright (c) 2004-2016 Electric Sheep Fencing, LLC
* All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
require_once("globals.inc");
require_once("interfaces.inc");
function interface_ipv6_lower($interface_real) {
global $g, $config;
if (!empty($interface_real)) {
$interface = convert_real_interface_to_friendly_interface_name($interface_real);
if (!empty($interface) && is_array($config['interfaces'][$interface]) && interface_isppp_type($interface)) {
$ifcfg = $config['interfaces'][$interface];
if (!empty($ifcfg['ipaddrv6'])) {
switch ($ifcfg['ipaddrv6']) {
case 'slaac':
case 'dhcp6':
// Take no action if dhcp6 is active on the parent interface, not the PPP interface
if ($ifcfg['ipaddrv6']==='dhcp6' && !(isset($ifcfg['dhcp6usev4iface']) || $ifcfg['ipaddr']==='ppp')) {
break;
}
// bring down dhcp6c if it is running
$pidv6 = find_dhcp6c_process($interface_real);
if ($pidv6) {
posix_kill($pidv6, SIGTERM);
sleep(3);
}
unlink_if_exists("{$g['varetc_path']}/dhcp6c_{$interface}.conf");
// disable router advertisements (and therefore SLAAC)
mwexec("/sbin/ifconfig " . escapeshellarg($interface_real) . " inet6 -accept_rtadv");
// remove any autoconfigured IPv6 addresses
exec("/sbin/ifconfig " . escapeshellarg($interface_real) . " inet6", $ifconfig_output);
foreach ($ifconfig_output as $output) {
if (preg_match('{ \A \s+ inet6 \s+ (\S+) .* autoconf .* \Z}xmsi', $output, $matches)) {
mwexec("/sbin/ifconfig " . escapeshellarg($interface_real) . " inet6 " . escapeshellarg($matches[1]) . " delete");
}
}
break;
default:
break;
}
}
}
}
}
function interface_ipv6_raise($interface_real) {
global $config;
if (!empty($interface_real)) {
$interface = convert_real_interface_to_friendly_interface_name($interface_real);
if (!empty($interface) && is_array($config['interfaces'][$interface]) && interface_isppp_type($interface)) {
$ifcfg = $config['interfaces'][$interface];
if (!empty($ifcfg['ipaddrv6'])) {
switch ($ifcfg['ipaddrv6']) {
case 'slaac':
case 'dhcp6':
// Take no action if dhcp6 is active on the parent interface, not the PPP interface
if ($ifcfg['ipaddrv6']==='dhcp6' && !(isset($ifcfg['dhcp6usev4iface']) || $ifcfg['ipaddr']==='ppp')) {
break;
}
$pidv6 = find_dhcp6c_process($interface_real);
if (empty($pidv6)) {
// only fire if router advertisements off
// (if router advertisements are on, rtsold might be primed to fire dhcp6c already)
exec("/sbin/ifconfig " . escapeshellarg($interface_real) . " inet6", $ifconfig_output);
$start = true;
foreach ($ifconfig_output as $output) {
if (preg_match('{ \A .* ACCEPT_RTADV .* \Z}xmsi', $output)) {
$start = false;
break;
}
}
if ($start) {
interface_dhcpv6_configure($interface, $ifcfg);
}
}
break;
default:
break;
}
}
}
}
}
// main entry point
if ($argc != 3) {
goto error;
}
$interface_real = trim($argv[1], " \n\t");
if (empty($interface_real)) {
goto error;
}
switch (strtolower($argv[2])) {
case 'up':
interface_ipv6_raise($interface_real);
break;
case 'down':
interface_ipv6_lower($interface_real);
break;
default:
goto error;
break;
}
exit(0);
error:
if (!empty($argv[0])) {
echo("Usage: " . substr(strrchr('/' . $argv[0], '/'), 1) . " <PPP interface> up|down\n");
}
exit(1);
?>
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