#!/bin/sh
#
# lxc_macvlan Start/Stop LXC MACVLAN interface
#
# chkconfig: 345 98 02
# description: Starts/Stops LXC MACVLAN interface.
#
### BEGIN INIT INFO
# Provides: lxc_macvlan
# Default-Start: 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start/Stop LXC MACVLAN interface
# Description: Start/Stop LXC MACVLAN interface
### END INIT INFO

# Source function library
. /etc/rc.d/init.d/functions

# Source any configurable options
test ! -r /etc/sysconfig/lxc_macvlan ||
        . /etc/sysconfig/lxc_macvlan

# Tests for data provided in /etc/sysconfig/lxc_macvlan
if [ -z "$MACVLAN_DEV" ]; then 
    echo "MACVLAN_DEV not set is /etc/sysconfig/lxc_macvlan"
    exit 6
fi

if [ -z "$MACVLAN_NAME" ]; then
    echo "MACVLAN_NAME not set is /etc/sysconfig/lxc_macvlan"
    exit 6
fi

if [ -z "$MACVLAN_ADDRESS" ]; then
    echo "MACVLAN_ADDRESS not set is /etc/sysconfig/lxc_macvlan"
    exit 6
fi

# If not defined MACVLAN_HWADDRESS, calculate it from MACVLAN_ADDRESS
if [ -z "$MACVLAN_HWADDRESS" ]; then 
    MACVLAN_HWADDRESS=`echo $MACVLAN_ADDRESS | awk -F "/" '{print $1}' | awk -F "." '{ printf "00:16:3e:%x:%x:%x\n", $2, $3, $4 }'`
    # TODO: Print on start() only
    # echo "MACVLAN_HWADDRESS not set, using calculated from MACVLAN_ADDRESS=${MACVLAN_ADDRESS} value: ${MACVLAN_HWADDRESS}"; 
fi


start() {
        msg_starting "LXC macvlan interface"
	# set -x
	ip link add link $MACVLAN_DEV name $MACVLAN_NAME address $MACVLAN_HWADDRESS type macvlan mode bridge
	ip link set $MACVLAN_NAME up
	ip address add $MACVLAN_ADDRESS brd + dev $MACVLAN_NAME
	# TODO: check if works: 
	#    cat  /sys/class/net/macv0/address                                                                                                                                                                                                        
	#    00:13:00:00:20:14
        RETVAL=$?
	[ $RETVAL -eq 0 ] && ok || fail
}

stop() {
        msg_stopping "LXC macvlan interface"
	# set -x
	ip link set $MACVLAN_NAME down
	ip link del $MACVLAN_NAME
        RETVAL=$?
	[ $RETVAL -eq 0 ] && ok || fail
}

status() {
	ip addr show $MACVLAN_NAME 
}


RETVAL=0

# See how we were called.
case "$1" in
  start)
	start
	;;

  stop)
	stop
	;;
  restart|reload|force-reload)
	stop
	start
	;;
  status)
	status
	;;
  *)

        msg_usage "$0 {start|stop|restart|reload|force-reload|status}"
        exit 3
esac

exit  $RETVAL