#!/bin/sh

DAEMON=knock
DAEMON_BIN=knockd
. /etc/init.d/modlibrc


config() {
	if [ ! -e "/tmp/flash/knock/knockd.conf" ]; then
		cat /usr/share/doc/knock/knockd.conf > /tmp/flash/knock/knockd.conf
	fi
}

start() {
	set -o noglob
	local countdown=10
	while [ $((countdown--)) -gt 0 ] && ! ifconfig $KNOCK_INTERFACE > /dev/null 2>&1; do
		sleep 1
	done
	modlib_startdaemon $DAEMON_BIN -d -c /tmp/flash/knock/knockd.conf -i "$KNOCK_INTERFACE"
}

case $1 in
	""|load)
		[ -d "/tmp/flash/knock" ] || mkdir /tmp/flash/knock
		[ -r /tmp/flash/knockd.conf ] && mv /tmp/flash/knockd.conf /tmp/flash/knock/knockd.conf
		config

		modreg cgi 'knock' 'Knock'
		modreg daemon $DAEMON
		modreg file knock conf 'config' 0 "knockd_conf"

		modlib_start $KNOCK_ENABLED
		;;
	unload)
		modunreg file knock
		modunreg daemon $DAEMON
		modunreg cgi knock
		modlib_stop
		;;
	start)
		modlib_start
		;;
	stop)
		modlib_stop
		;;
	restart)
		modlib_restart
		;;
	status)
		modlib_status
		;;
	*)
		echo "Usage: $0 [load|unload|start|stop|restart|status]" 1>&2
		exit 1
		;;
esac

exit 0