From 352defe4356b9ee6ac0042b4c34957006e0a9f77 Mon Sep 17 00:00:00 2001
From: schinken <schinken@bamberg.ccc.de>
Date: Sat, 9 Jan 2016 13:37:17 +0100
Subject: Add possibility to configure radvd valid lifetime

---
 src/etc/inc/services.inc                           |  9 ++++++++
 .../local/www/services_router_advertisements.php   | 27 ++++++++++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/src/etc/inc/services.inc b/src/etc/inc/services.inc
index 0a1d56a..1ddc1c5 100644
--- a/src/etc/inc/services.inc
+++ b/src/etc/inc/services.inc
@@ -181,6 +181,15 @@ function services_radvd_configure($blacklist = array()) {
 				$radvdconf .= "\t\tAdvRouterAddr on;\n";
 				break;
 		}
+
+		if(is_numericint($dhcpv6ifconf['ravalidlifetime'])) {
+		  $radvdconf .= "\t\tAdvValidLifetime {$dhcpv6ifconf['ravalidlifetime']};\n";
+		}
+
+		if(is_numericint($dhcpv6ifconf['rapreferredlifetime'])) {
+		  $radvdconf .= "\t\tAdvPreferredLifetime {$dhcpv6ifconf['rapreferredlifetime']};\n";
+		}
+
 		$radvdconf .= "\t};\n";
 
 		if (is_array($dhcpv6ifconf['subnets']['item'])) {
diff --git a/src/usr/local/www/services_router_advertisements.php b/src/usr/local/www/services_router_advertisements.php
index 1693b4a..bcc896b 100644
--- a/src/usr/local/www/services_router_advertisements.php
+++ b/src/usr/local/www/services_router_advertisements.php
@@ -118,6 +118,10 @@ if (is_array($config['dhcpdv6'][$if])) {
 	if ($pconfig['rapriority'] == "") {
 		$pconfig['rapriority'] = "medium";
 	}
+
+	$pconfig['ravalidlifetime'] = $config['dhcpdv6'][$if]['ravalidlifetime'];
+	$pconfig['rapreferredlifetime'] = $config['dhcpdv6'][$if]['rapreferredlifetime'];
+
 	$pconfig['rainterface'] = $config['dhcpdv6'][$if]['rainterface'];
 	$pconfig['radomainsearchlist'] = $config['dhcpdv6'][$if]['radomainsearchlist'];
 	list($pconfig['radns1'], $pconfig['radns2'], $pconfig['radns3']) = $config['dhcpdv6'][$if]['radnsserver'];
@@ -188,6 +192,10 @@ if ($_POST) {
 		}
 	}
 
+	if ($_POST['ravalidlifetime'] && (!is_numeric($_POST['ravalidlifetime']) || ($_POST['ravalidlifetime'] < 7200))) {
+		$input_errors[] = gettext("A valid lifetime below 2 hrs will be ignored by clients (RFC 4862 Section 5.5.3 point e)");
+	}
+
 	if (!$input_errors) {
 		if (!is_array($config['dhcpdv6'][$if])) {
 			$config['dhcpdv6'][$if] = array();
@@ -197,6 +205,9 @@ if ($_POST) {
 		$config['dhcpdv6'][$if]['rapriority'] = $_POST['rapriority'];
 		$config['dhcpdv6'][$if]['rainterface'] = $_POST['rainterface'];
 
+		$config['dhcpdv6'][$if]['ravalidlifetime'] = $_POST['ravalidlifetime'];
+		$config['dhcpdv6'][$if]['rapreferredlifetime'] = $_POST['rapreferredlifetime'];
+
 		$config['dhcpdv6'][$if]['radomainsearchlist'] = $_POST['radomainsearchlist'];
 		unset($config['dhcpdv6'][$if]['radnsserver']);
 		if ($_POST['radns1']) {
@@ -295,6 +306,22 @@ $section->addInput(new Form_Select(
 	$priority_modes
 ))->setHelp('Select the Priority for the Router Advertisement (RA) Daemon.');
 
+$section->addInput(new Form_Input(
+	'ravalidlifetime',
+	'Default valid lifetime',
+	'text',
+	$pconfig['ravalidlifetime']
+))->setHelp('Seconds. The length of time in seconds (relative to the time the packet is sent) that the prefix is valid for the purpose of on-link determination.' . ' <br />' .
+'The default is 86400 seconds.');
+
+$section->addInput(new Form_Input(
+	'rapreferredlifetime',
+	'Default preferred lifetime',
+	'text',
+	$pconfig['rapreferredlifetime']
+))->setHelp('Seconds. The length of time in seconds (relative to the time the packet is sent) that addresses generated from the prefix via stateless address autoconfiguration remain preferred.' . ' <br />' .
+			'The default is 14400 seconds.');
+
 $carplistif = array();
 if (count($carplist) > 0) {
 	foreach ($carplist as $ifname => $vip) {
-- 
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