From aeb44799f3693c198c48926c85b4468a6dccb9f9 Mon Sep 17 00:00:00 2001
From: Renato Botelho <garga@FreeBSD.org>
Date: Mon, 4 Aug 2014 12:34:52 -0300
Subject: Fix #3790. Fix IPv6 Prefix ID check using interface user choose
 before save

---
 usr/local/www/interfaces.php | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'usr/local/www/interfaces.php')

diff --git a/usr/local/www/interfaces.php b/usr/local/www/interfaces.php
index 2aadb71..e1d05c0 100644
--- a/usr/local/www/interfaces.php
+++ b/usr/local/www/interfaces.php
@@ -464,6 +464,12 @@ if ($_POST['apply']) {
 
 	unset($input_errors);
 	$pconfig = $_POST;
+
+	if (isset($_POST['track6-interface'])) {
+		$ipv6_delegation_length = calculate_ipv6_delegation_length($_POST['track6-interface']);
+		$ipv6_num_prefix_ids = pow(2, $ipv6_delegation_length);
+	}
+
 	if (is_numeric("0x" . $_POST['track6-prefix-id--hex']))
 		$pconfig['track6-prefix-id'] = intval($_POST['track6-prefix-id--hex'], 16);
 	else
-- 
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