#!/bin/sh

DAEMON=pptpd
. /etc/init.d/modlibrc

config() {
	set -o noglob
	rm -f /mod/etc/ppp/ip-up
	rm -f /mod/etc/ppp/ip-down
	[ -x "/tmp/flash/ppp/pppd_ip-up" ] && /tmp/flash/ppp/pppd_ip-up > /mod/etc/ppp/ip-up
	[ ! -e "/mod/etc/ppp/ip-up" ] && /mod/etc/default.pppd/pppd_ip-up > /mod/etc/ppp/ip-up
	[ -x "/tmp/flash/ppp/pppd_ip-down" ] && /tmp/flash/ppp/pppd_ip-down > /mod/etc/ppp/ip-down
	[ ! -e "/mod/etc/ppp/ip-down" ] && /mod/etc/default.pppd/pppd_ip-down > /mod/etc/ppp/ip-down
	chmod 755 /mod/etc/ppp/ip-up
	chmod 755 /mod/etc/ppp/ip-down
}

start() {
	kver="$(uname -r)"
	modprobe arc4
	[ "${kver:4:2}" -lt 28 ] && modprobe sha1 || modprobe sha1_generic 2>/dev/null
	modprobe ppp_generic 2>/dev/null
	modprobe ppp_async 2>/dev/null
	modprobe ppp_deflate
	modprobe ppp_mppe_mppc
	modlib_startdaemon $DAEMON -c /etc/ppp/$DAEMON.conf
}

stop() {
	kill $(ps | grep pp[t]pd | grep -vE "rc.pp|pppd" | sed 's/^[^0-9]*\([0-9]*\).*/\1/')
}

case $1 in
	""|load)
		[ ! -d "/tmp/flash/ppp" ] && mkdir -p /tmp/flash/ppp
		[ ! -d "/mod/etc/ppp" ] && mkdir -p /mod/etc/ppp

		[ ! -e "/tmp/flash/ppp/options.pptpd" ] && /mod/etc/default.${DAEMON}/pptpd_options > /tmp/flash/ppp/options.pptpd
		[ ! -e "/tmp/flash/ppp/pptpd.conf" ] && /mod/etc/default.${DAEMON}/pptpd_conf > /tmp/flash/ppp/pptpd.conf

		[ ! -e "/mod/etc/ppp/options.pptpd" ] && ln -s /tmp/flash/ppp/options.pptpd /mod/etc/ppp/options.pptpd
		[ ! -e "/mod/etc/ppp/pptpd.conf" ] && ln -s /tmp/flash/ppp/pptpd.conf /mod/etc/ppp/pptpd.conf

		modreg cgi 'pptpd' 'PPTPD'
		modreg daemon $DAEMON
		modreg file pptpd options 'options.pptpd' 0 "pptpd_options"
		modreg file pptpd conf 'pptpd.conf' 0 "pptpd_conf"

		modlib_start $PPTPD_ENABLED
		;;
	unload)
		modunreg cgi pptpd
		modunreg daemon $DAEMON
		modunreg file pptpd
		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