batman-adv: init script tries to retrieve interfaces from uci

The batman-adv init script will query uci (network.$iface.ifname)
to retrieve the interface name to re-use the existing network
configuration system. 
The default iface configuration (batman-adv.bat0.interfaces) is 
set to 'mesh' which allows to start batman-adv as soon as the
network configuration contains a 'mesh' stanza.
Signed-off-by: NFilippo Sallemi <tonyputi@gmail.com>
Signed-off-by: NGioacchino Mazzurco <gmazzurco89@gmail.com>



git-svn-id: svn://svn.openwrt.org/openwrt/packages/net/batman-adv@26719 3c298f89-4303-0410-b956-a3cf2f4a3e73

files/etc/config/batman-adv

 
 config 'mesh' 'bat0'
-	option 'interfaces' 'wlan0'
+	option 'interfaces' 'mesh'
 	option 'aggregated_ogms'
 	option 'bonding'
 	option 'fragmentation'

files/etc/init.d/batman-adv

 #!/bin/sh /etc/rc.common
+# Copyright (C) 2011 OpenWrt.org
+
 START=90
 
 is_module_loaded() {
@@ -33,11 +35,16 @@ start_mesh () {
 		echo Error, you must specify at least a network interface
 		return
 	fi
-
+	
 	for interface in $interfaces
 	   do
-		[ ! -f "/sys/class/net/$interface/batman_adv/mesh_iface" ] && echo "Can't add interface $interface - ignoring" && continue
-		echo $meshif > /sys/class/net/$interface/batman_adv/mesh_iface
+	      ifname=$(uci -P /var/state get network.$interface.ifname 2>&-)
+	      [ ! -f "/sys/class/net/$ifname/batman_adv/mesh_iface" ] && {
+	         ifname=${interface}
+	         [ ! -f "/sys/class/net/$ifname/batman_adv/mesh_iface" ] && echo "Can't add interface $ifname - ignoring" && continue
+	      }
+
+	      echo $meshif > /sys/class/net/$ifname/batman_adv/mesh_iface
 	   done
 
 	if [ $orig_interval ]; then
@@ -86,7 +93,7 @@ stop_mesh() {
 	for iface in $(ls /sys/class/net/*)
 	   do
 		 [ ! -f "$iface/batman_adv/mesh_iface" ] && continue
-		 [ "$(head -1 $iface/batman_adv/mesh_iface)" != "status: $meshif" ] && continue
+		 [ "$(head -1 $iface/batman_adv/mesh_iface)" != "$meshif" ] && continue
 
 		 echo "none" > $iface/batman_adv/mesh_iface
 	   done