#!/bin/sh

# Configuration of the bridge should be done in /etc/network/interfaces.d/bridgeX
# Read more at https://wiki.debian.org/BridgeNetworkConnections

[ ! -x /usr/sbin/brctl ] && exit 0

case "$IF_BRIDGE_PORTS" in
	"")
		exit 0 ;;
	none)
		INTERFACES="" ;;
	all)
		INTERFACES=$(grep eth /proc/net/dev|sed 's/\(\ *\)\(eth[^:]*\)\(.*\)/\2/') ;;
	*)
		INTERFACES="$IF_BRIDGE_PORTS" ;;
esac

brctl addbr $IFACE &&

for i in $INTERFACES; do
	[ -x /etc/network/if-pre-up.d/vlan ] && env IFACE=$i /etc/network/if-pre-up.d/vlan
	brctl addif $IFACE $i && ip link set dev $i up
done

brctl stp $IFACE off