trunk/openslp/multicast_route_set.sh

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
exit $retval
1	PING_OPTIONS_1='-c1 -w1'
2	PING_OPTIONS_2='-c1 -i1'
3	MULTICAST_ADDRESS='239.255.255.253'
4	TMP_FILE=/tmp/route.check
5	PING_ERROR_NO_ROUTE='unreachable'
6
7	MSG_FAILED_TO_FIND='Failed to Detect Multicast Route'
8	MSG_SUCCESS_ON_FIND='Multicast Route Enabled'
9	MSG_ADDING_ROUTE='Attempting to Add Multicast Route ...'
10	MSG_FAILED_TO_ADD=' FAILED - Route NOT Added.'
11	MSG_SUCCES_ON_ADD=' SUCCESS - Route Added.'
12
13	CMD_GET_INTERFACE="netstat -i \| awk 'BEGIN{}(NR>2)&&(!/^lo*/){print \$1}'"
14	CMD_ADD_ROUTE="route add -net 224.0.0.0 netmask 240.0.0.0"
15
16	ping $PING_OPTIONS_1 $MULTICAST_ADDRESS 2> $TMP_FILE 1> /dev/null
17	if [ $? = 2 ]; then
18	ping $PING_OPTIONS_2 $MULTICAST_ADDRESS 2> $TMP_FILE 1> /dev/null
19	fi
20
21	grep $PING_ERROR_NO_ROUTE $TMP_FILE > /dev/null 2>&1
22	err_unreachable_found=$?
23
24	#If errors, add route. Otherwise, do nothing
25	if [ -s $TMP_FILE ] && [ $err_unreachable_found = 0 ]; then
26
27	if [ $1 != 0 ]; then
28	rc_echo $MSG_FAILED_TO_FIND
29	rc_echo $MSG_ADDING_ROUTE
30	fi
31
32	$CMD_ADD_ROUTE `eval $CMD_GET_INTERFACE` > /dev/null 2>&1
33	retval=$?
34	if [ $1 != 0 ]; then
35
36	if [ $retval = 0 ]; then
37	rc_echo $MSG_SUCCES_ON_ADD
38	else
39	rc_echo $MSG_FAILED_TO_ADD
40	fi
41	fi
42	else
43	if [ $1 != 0 ]; then
44	rc_echo -n $MSG_SUCCESS_ON_FIND
45	fi
46	retval=0
47	fi
48
49	rm -f $TMP_FILE # Clean up
50	exit $retval