##############################################################################
# Copyright (c) 2015 Ericsson AB and others.
# stefan.k.berg@ericsson.com
# jonas.bjurel@ericsson.com
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################

#!/bin/sh
### BEGIN INIT INFO
# Provides:          control-bond
# Required-Start:    $remote_fs $all
# Required-Stop:
# Default-Start:     2 3 4 5
# Default-Stop:     0 1 6
# Short-Description: Bonds eth0 and eth1 and changes bridge configuration.
### END INIT INFO


PATH=/sbin:/usr/sbin:/bin:/usr/bin
VSCTL=/usr/bin/ovs-vsctl
APPCTL=/usr/bin/ovs-appctl


add_control_bond() {
        logger "Starting addition of control-bond"
        $VSCTL --may-exist br-fw-admin
        $VSCTL --may-exist br-mgmt
        $VSCTL add-bond br-fw-admin bond-control eth0 eth1

        $VSCTL set port br-mgmt tag=66
        $APPCTL bond/set-active-slave bond-control eth0

        $VSCTL add-port br-fw-admin admin-to-mgmt
        $VSCTL add-port br-mgmt mgmt-to-admin
        $VSCTL set interface admin-to-mgmt type=patch
        $VSCTL set interface mgmt-to-admin type=patch

        $VSCTL set interface admin-to-mgmt options:peer=mgmt-to-admin
        $VSCTL set interface mgmt-to-admin options:peer=admin-to-mgmt

        $VSCTL set port admin-to-mgmt trunk=66
        $VSCTL set port mgmt-to-admin trunk=66
        logger "Finished addition of control-bond"
}

status_control_bond() {
       if [ ! -f $VSCTL ]; then
         return 1
       else
         $VSCTL show | grep -q "admin-to-mgmt"
         return $?
       fi
}

case "$1" in
    start)
        status_control_bond
        if [ $? -eq 0 ]; then
            exit 0
        else
            add_control_bond
        fi
        ;;
    restart|reload|force-reload)
        echo "Error: argument '$1' not supported" >&2
        exit 3
        ;;
    status)
        status_control_bond
        if [ $? -eq 0 ]; then
           echo "The control-bond is enabled"
           exit 0
        else
           echo "The control-bond is disabled"
           exit 1
        fi

        ;;
    stop)
        echo "Stop is not supported"
        exit 0
        ;;
    *)
        echo "Usage: $0 start|status" >&2
        exit 3
        ;;
esac