#!/bin/sh

if [ ! -x /sbin/bridge ] && [ ! -f /sys/class/net/$IFACE/bridge/vlan_filtering ]
then
  exit 0
fi

# Enabling vlan filtering feature
if [ "$MODE" = "start" ] ; then

  if [ -n "$IF_BRIDGE_VLAN_AWARE" ]
  then
    echo 1 > /sys/class/net/$IFACE/bridge/vlan_filtering
  else
   exit 0
  fi

fi

. /lib/bridge-utils/bridge-utils.sh

case "$IF_BRIDGE_PORTS" in
    "")
	exit 0
	;;
    none)
	INTERFACES=""
	;;
    *)
	INTERFACES="$IF_BRIDGE_PORTS"
	;;
esac

all_interfaces= &&
unset all_interfaces &&
bridge_parse_ports $INTERFACES | while read i
do
  for port in $i
  do
    if [ "$MODE" = "start" ] && [ -d /sys/class/net/$IFACE/brif/$port ]; then
        # we allow vlan to pass through attached interface
        if [ -n "$IF_BRIDGE_VIDS" ]
	then
            for VID in $IF_BRIDGE_VIDS
            do
                bridge vlan add dev $port vid $VID
            done
	else
            bridge vlan add dev $port vid 2-4094
        fi
    fi
  done
done