From: Stefan Schantl <stefan.schantl@ipfire.org>
Date: Wed, 25 Jan 2017 13:48:21 +0000 (+0100)
Subject: Only call radvd_update if a zone contains an IPv6.
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=6325e3ccbfb73c8ee428b349eacbfc6de19dec47;p=people%2Fjschlag%2Fnetwork.git

Only call radvd_update if a zone contains an IPv6.

On systems which lacks any IPv6 configured zone, radvd would be
started with an empty configuration file and crashes which will
brick the system startup and results in a frozen system.

Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/src/functions/functions.routing b/src/functions/functions.routing
index c7aac09..4824f34 100644
--- a/src/functions/functions.routing
+++ b/src/functions/functions.routing
@@ -81,7 +81,9 @@ routing_default_update() {
 		routes=$(echo ${routes})
 
 		# Reload radvd configuration
-		[[ "${proto}" = "ipv6" ]] && radvd_update
+		if [[ "${proto}" = "ipv6" ]] && db_exists "${zone}/ipv6"; then
+			radvd_update
+		fi
 
 		# Remove all default routes.
 		if [ -z "${routes}" ]; then