#!/bin/sh
# az [2012-05-05 Sat 19:11] tiny killswitch reaction tool
# if rfkill blocked, properly shut down the interface
# if rfkill unblocked, bring the interface up

# interface name hardcoded (lazy me)
XIFACE=eth1

ME=$(busybox basename $0)"[$$]"
[ -t 2 ] && LOGARGS=-s
mesg () 
{
    busybox logger $LOGARGS -t "$ME" "$@"
}

debug_mesg () 
{
    [ -z "$DEBUG" ] && return
    mesg "$@"
}

# rfkill devs: marks state as 1 for on, 0 and 2 for off
if [ "$RFKILL_TYPE" = "wlan" -a "$ACTION" = "change" ] ; then
    debug_mesg "interface $XIFACE/$RFKILL_TYPE to state $RFKILL_STATE"
		
    if [ "$RFKILL_STATE" = "1" ] ; then
				mesg "bringing up interface $XIFACE"
				# on hp dm1 a bit of delay is necessary, or 
				# the interface doesn't go up, the supplicant can't scan
				# and we're stuck
				sleep 1
				/sbin/ifup $XIFACE
    elif [ "$RFKILL_STATE" != "1" ]; then
				mesg "taking down interface $XIFACE"
				/sbin/ifdown $XIFACE
    fi
fi
exit 0