#!/bin/bash

# checks Fujitsu-Siemens Serverview Agents per snmp, output the affected subsystem(s) 
# Comments, Questions etc. mailto : kk@mkk.de Kevin Kuntz

####### ServerView MIBS ########

#Main-Tree Serverview
srv_view_oid=1.3.6.1.4.1.231.2.10.2.11

#System-Status
srv_view_sysstat_oid=$srv_view_oid.2.1.0

#System-Status-Return-Message
#Should return an error Message, but dont work here, so its not used
srv_view_sysstat_return_string_oid=$srv_view_oid.2.2.0

#Number of avaible Subsystems
srv_view_subsys_count_oid=$srv_view_oid.3.2.0

#Subsystem-Tree OID
srv_view_subsys_oid=$srv_view_oid.3.1.1

######## ServerView MIBS ########


#Output for incomplete,wrong or missing  parameters
syntax ()
{

	echo "Usage: check_serverview -H <host-address> <-C community String> <-v snmp-version>"
	echo 
	exit 3

}

#Function to check all subsystems, output every subsystem which is not "ok" 
check_sub ()
{

	subsys_count=$($get -c $community_string -v $snmp_version $Host -O v $srv_view_subsys_count_oid | cut -b10)

	for i in $(seq 1 $subsys_count) ; do  
		snmp_status=$($get -c $community_string -v $snmp_version $Host -O v $srv_view_subsys_oid.3.$i | cut -b10)

		if [ $snmp_status != 1 ]; then 

			( $get -c $community_string -v $snmp_version $Host -O v $srv_view_subsys_oid.2.$i | cut -b9- )
	
		fi
	done
}

#Dont know, how to use "dynamic", unordered command line parameters 

# Help Output

if [ $1 = "-h" ] ; then

	echo checks Fujitsu-Siemens Serverview Agents per snmp, output the affected subsystem*s* 
	echo Uses snmpget from the net-snmp-package
	echo
	echo -H 
	echo	host to check
	echo -C 
	echo	snmp community string, default is "public"
	echo -v	
	echo	snmp version, default is "1"
	echo 
	echo 	Comments, questions, sexual offers etc. mailto : kk@mkk.de Kevin Kuntz
	echo
	syntax

fi

# Setting Hostname
if [  x$1 = "x-H"  -a  x != x$2  ] ; then
	Host=$2
else	
	syntax
	exit 3
fi

# Setting Community String
if [  x$3 = "x-C"  -a  x != x$4  ] ; then

	community_string=$4

else
	community_string=public

fi

# Setting snmp version
if [ x$3 = "x-v" -a x != x$4 ] ; then

	snmp_version=$4

else

	snmp_version=1

fi

#Path to snmpget
get=$(which snmpget)

if [ -z $get ]; then 
	
	echo "Error snmpget not installed or wrong path"
	exit 3

fi

snmp_sysstat=$($get -c $community_string -v $snmp_version $Host -O v $srv_view_sysstat_oid | cut -b10)

case $snmp_sysstat in

	1)
		echo "Serverview Agent Status OK"
		exit 0
	;;

	2)
		echo -n "Serverview Agent Warning : "
		check_sub 	
		exit 1
	;;
	3|4)
		echo -n "Serverview Agent Critical : "
		check_sub 	
		exit 2
	;;

	*)

		echo "Serverview Agent Status unknown"
		exit 3

	;;
esac