From: Steven Barth <cyrus@openwrt.org>
Date: Sun, 19 Jan 2014 17:35:33 +0000 (+0000)
Subject: firewall: don't reload if there were no address or data changes
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=fac5e62abdec3cb5370bd09fdb704052001c3f30;p=openwrt%2Fstaging%2Fblocktrron.git

firewall: don't reload if there were no address or data changes

This fixes packet loss due to reloading firewall every minute with IPv6
implementation of certain ISPs.

SVN-Revision: 39332
---

diff --git a/package/network/config/firewall/files/firewall.hotplug b/package/network/config/firewall/files/firewall.hotplug
index e34dc635a6..f1eab001d4 100644
--- a/package/network/config/firewall/files/firewall.hotplug
+++ b/package/network/config/firewall/files/firewall.hotplug
@@ -1,6 +1,7 @@
 #!/bin/sh
 
 [ "$ACTION" = ifup -o "$ACTION" = ifupdate ] || exit 0
+[ "$ACTION" = ifupdate -a -z "$IFUPDATE_ADDRESSES" -a -z "$IFUPDATE_DATA" ] && exit 0
 
 /etc/init.d/firewall enabled || exit 0