#!/bin/sh
#
# pppoe-relay	PPP over Ethernet Relay Server
#
# chkconfig:	345 47 53
#
# description:	PPP over Ethernet Relay Server
#

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

# Get network config
. /etc/sysconfig/network

# Get service config
[ -f /etc/sysconfig/pppoe-relay ] && . /etc/sysconfig/pppoe-relay

# Check that networking is up.
if is_yes "${NETWORKING}"; then
	if [ ! -f /var/lock/subsys/network -a "$1" != stop -a "$1" != status ]; then
		msg_network_down "PPPoE Relay Server"
		exit 1
	fi
else
	exit 0
fi

PPPOE_RELAY_IFACES_SERVERS_OPT=
for iface in $PPPOE_RELAY_IFACES_SERVERS; do
	PPPOE_RELAY_IFACES_SERVERS_OPT="-S $iface $$PPPOE_RELAY_IFACES_SERVERS"
done

PPPOE_RELAY_IFACES_CLIENTS=
for iface in $PPPOE_RELAY_IFACES_CLIENTS; do
	PPPOE_RELAY_IFACES_CLIENTS_OPT="-C $iface $PPPOE_RELAY_IFACES_CLIENTS"
done
PPPOE_RELAY_IFACES_BOTH=
for iface in $PPPOE_RELAY_IFACES_BOTH; do
	PPPOE_RELAY_IFACES_BOTH_OPT="-B $iface $PPPOE_RELAY_IFACES_BOTH"
done

[ -z "$PPPOE_RELAY_MAX_SESSIONS" ] && PPPOE_RELAY_MAX_SESSIONS=500
[ -z "$PPPOE_RELAY_TIMEOUT" ] && PPPOE_RELAY_TIMEOUT=600

RETVAL=0
# See how we were called.
case "$1" in
  start)
	# Check if the service is already running?
	if [ ! -f /var/lock/subsys/pppoe-relay ]; then
		msg_starting "PPPoE Relay Server"
		for iface in $PPPOE_RELAY_IFACES_SERVERS $PPPOE_RELAY_IFACES_CLIENTS $PPPOE_RELAY_IFACES_BOTH; do
			ip link set $iface up 2> /dev/null
		done
		daemon /usr/sbin/pppoe-relay \
			$PPPOE_RELAY_IFACES_SERVERS_OPT \
			$PPPOE_RELAY_IFACES_CLIENTS_OPT \
			$PPPOE_RELAY_IFACES_BOTH_OPT \
			-n $PPPOE_RELAY_MAX_SESSIONS -i $PPPOE_RELAY_TIMEOUT
		RETVAL=$?
		[ $RETVAL -eq 0 ] && touch /var/lock/subsys/pppoe-relay
	else
		msg_already_running "PPPoE Relay Server"
	fi
	;;
  stop)
	if [ -f /var/lock/subsys/pppoe-relay ]; then
		msg_stopping "PPPoE Relay Server"
		killproc pppoe-relay
		rm -f /var/lock/subsys/pppoe-relay >/dev/null 2>&1
	else
		msg_not_running "PPPoE Relay Server"
	fi
	;;
  restart|force-reload)
	$0 stop
	$0 start
	exit $?
	;;
  status)
	status pppoe-relay
	exit $?
	;;
  *)
	msg_usage "$0 {start|stop|restart|force-reload|status}"
	exit 3
esac

exit $RETVAL