Synnefo » snf-network

#!/bin/bash

function usage {

	echo "Usage: $0 <mode> <parent interface> <prv min> <prv max> <offset>"

	exit 1

}

if [ $# -ne 5 ]; then

	usage

fi

function up {

	iface=$1

	prv_min=$2

	prv_max=$3

	offset=$4

	echo "Adding VLANs $2 - $3"

	vconfig set_name_type DEV_PLUS_VID_NO_PAD

	for prv in $(seq $prv_min $prv_max); do

		vlan=$(($prv+$offset))

		bridge=prv$prv

		vconfig add $iface $vlan

		ifconfig $iface.$vlan up

		brctl addbr $bridge

		brctl setfd $bridge 0

		brctl addif $bridge $iface.$vlan # dev_plus_vid

		ifconfig $bridge up

	done

}

function down {

	iface=$1

	prv_min=$2

	prv_max=$3

	offset=$4

	echo "Removing VLANs $2 - $3"

	for prv in $(seq $prv_min $prv_max); do

		vlan=$(($prv+$offset))

		bridge=prv$prv

		(

		ifconfig $bridge down

		brctl delif $bridge $iface.$vlan # dev_plus_vid

		vconfig rem $iface.$vlan

		brctl delbr $bridge

		) 2>/dev/null

	done

}

mode=$1; shift

if [ "$mode" = "up" ]; then

	up $@

elif [ "$mode" = "down" ]; then

	down $@

else

	usage

fi