#!/bin/sh
# $Header: /root/magellan-cvs/src/openslp/slpd.rc,v 1.1 2009-06-11 13:22:04 niro Exp $

#%rlevels: 3:s 4:s 5:s 0:k 1:k 2:k 6:k
#%start: 30
#%stop: 30

#deps
#%needs:
#%before:
#%after:

source /etc/conf.d/rc
source $rc_functions

#
# Does nothing if a route exists that supports multicast traffic.
# If no routes supporting multicast traffic exists, the function
# tries to add one.  A 0 is returned on success and a 1 on failure.
# One parameter must be passed in.  This variable determins verbosity.
# If parameter is non-zero debugging will appear.
#
multicast_route_set()
{
	PING_OPTIONS_1='-c1 -w1'
	PING_OPTIONS_2='-c1 -i1'
	MULTICAST_ADDRESS='239.255.255.253'
	TMP_FILE=/tmp/route.check
	PING_ERROR_NO_ROUTE='unreachable'

	MSG_FAILED_TO_FIND='Failed to Detect Multicast Route'
	MSG_SUCCESS_ON_FIND='Multicast Route Enabled'
	MSG_ADDING_ROUTE='Attempting to Add Multicast Route ...'
	MSG_FAILED_TO_ADD=' FAILED - Route NOT Added.'
	MSG_SUCCES_ON_ADD=' SUCCESS - Route Added.'

	CMD_GET_INTERFACE="netstat -i | awk 'BEGIN{}(NR>2)&&(!/^lo*/){print \$1}'"
	CMD_ADD_ROUTE="route add -net 224.0.0.0 netmask 240.0.0.0"

	ping $PING_OPTIONS_1 $MULTICAST_ADDRESS 2> $TMP_FILE 1> /dev/null
	if [ $? = 2 ]; then
		ping $PING_OPTIONS_2 $MULTICAST_ADDRESS 2> $TMP_FILE 1> /dev/null
	fi

	grep $PING_ERROR_NO_ROUTE $TMP_FILE > /dev/null 2>&1
	err_unreachable_found=$?

	#If errors, add route. Otherwise, do nothing
	if [ -s $TMP_FILE ] && [ $err_unreachable_found = 0 ]; then 

		if [ $1 != 0 ]; then
			rc_echo $MSG_FAILED_TO_FIND 
			rc_echo $MSG_ADDING_ROUTE 
		fi

		$CMD_ADD_ROUTE `eval $CMD_GET_INTERFACE` > /dev/null 2>&1
		retval=$?
		if [ $1 != 0 ]; then

			if [ $retval = 0 ]; then
				rc_echo $MSG_SUCCES_ON_ADD
			else
				rc_echo $MSG_FAILED_TO_ADD
			fi
		fi
	else
		if [ $1 != 0 ]; then
			rc_echo -n $MSG_SUCCESS_ON_FIND
		fi
		retval=0
	fi

	rm -f $TMP_FILE # Clean up
	return $retval
}

checkconfig()
{
	multicast_route_set 0
	if [ $? -ne 0 ]
	then
		rc_echo "No route available for multicast traffic!"
		exit 1
	fi
}

case "$1" in
	start)
		checkconfig
		rc_print "Starting slpd ..."
		start-stop-daemon --start --quiet --exec /usr/sbin/slpd --pidfile /var/run/slpd.pid
		evaluate_retval

		update_svcstatus $1
		splash svc_started "$(basename $0)" 0
		;;

	stop)
		rc_print "Stopping slpd ..."
		start-stop-daemon --stop --quiet --pidfile /var/run/slpd.pid
		evaluate_retval

		update_svcstatus $1
		splash svc_stopped "$(basename $0)" 0
		;;

	restart)
		$0 stop
		sleep 1
		$0 start
		;;

	*)
		rc_echo "Usage: $0 {start|stop|restart}"
		exit 1
		;;
esac