194 lines
4.2 KiB
Bash
194 lines
4.2 KiB
Bash
#!/bin/bash
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# Written By Nicole
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# Any Comments or Questions please e-mail to ml@nicole-haehnel.de
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#
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# Plugin Name: check_ipsec
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# Version: 2.0
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# Date: 26/08/2008
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#
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# Usage: check_ipsec --tunnels <n>
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#
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# gateways.txt file must be located in same directory
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# and has to look like:
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# nameofconn1 192.168.0.1
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# nameofconn2 192.168.1.1
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#
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# ------------Defining Variables------------
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PROGNAME=`basename $0`
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PROGPATH=`echo $0 | sed -e 's,[\\/][^\\/][^\\/]*$,,'`
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REVISION=`echo '$Revision: 2.0 $' | sed -e 's/[^0-9.]//g'`
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#STRONG=`$IPSECBIN --version |grep strongSwan | wc -l`
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DOWN=""
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# ---------- Change to your needs ----------
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PLUGINPATH="/usr/lib64/nagios/plugins"
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GATEWAYLIST="gateways.txt"
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IPSECBIN="/usr/sbin/ipsec"
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FPINGBIN="/usr/sbin/fping"
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# ping server in network on the other side of the tunnel
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PINGIP=1 # ping yes or no (1/0)
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# ------------------------------------------
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. $PROGPATH/utils.sh
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# Testing availability of $IPSECBIN, $FPINGBIN and $GATEWAYLIST
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if [ $# -eq 0 ];
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then
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echo UNKNOWN - missing Arguments. Run check_ipsec --help
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exit $STATE_UNKNOWN
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fi
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test -e $IPSECBIN
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if [ $? -ne 0 ];
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then
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echo CRITICAL - $IPSECBIN not exist
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exit $STATE_CRITICAL
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else
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STRONG=`$IPSECBIN --version |grep strongSwan | wc -l`
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fi
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if [ $PINGIP -eq 1 ]
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then
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test -e $FPINGBIN
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if [ $? -ne 0 ];
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then
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echo CRITICAL - $FPINGBIN not exist
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exit $STATE_CRITICAL
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fi
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fi
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test -e $PROGPATH/$GATEWAYLIST
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if [ $? -ne 0 ];
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then
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echo CRITICAL - $GATEWAYLIST not exist
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exit $STATE_CRITICAL
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fi
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print_usage() {
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echo "Usage:"
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echo " $PROGNAME --tunnels <number of configured tunnels>"
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echo " $PROGNAME --help"
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echo " $PROGNAME --version"
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echo " Created by Nicole, questions or problems e-mail ml@nicole-haehnel.de"
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echo ""
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}
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print_help() {
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print_revision $PROGNAME $REVISION
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echo ""
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print_usage
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echo " Checks vpn connection status of an openswan or strongswan installation."
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echo ""
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echo " --tunnels <number of configured tunnels>"
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echo " -T <number of configured tunnels>"
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echo " provides the tunnel status of the openswan or strongswan installation"
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echo ""
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echo " --help"
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echo " -h"
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echo " prints this help screen"
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echo ""
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echo " --version"
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echo " -V"
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echo " Print version and license information"
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echo ""
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}
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check_tunnel() {
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if [[ "$STRONG" -eq "1" ]]
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then
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eroutes=`$IPSECBIN status | grep -e "IPsec SA established" | grep -e "newest IPSEC" | wc -l`
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else
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eroutes=`$IPSECBIN whack --status | grep -e "IPsec SA established" | grep -e "newest IPSEC" | wc -l`
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fi
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if [[ "$eroutes" -eq "$2" ]]
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then
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echo "OK - All $2 tunnels are up an running"
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exit $STATE_OK
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elif [[ "$eroutes" -gt "$2" ]]
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then
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echo "WARNING - More than $2 ($eroutes) tunnels are up an running"
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exit $STATE_WARNING
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else
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echo "CRITICAL - Only $eroutes tunnels from $2 are up an running - $(location)"
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exit $STATE_CRITICAL
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fi
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}
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location() {
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count=0
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i=1
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while read line; do
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CONN=`echo $line| awk '{print $1}'`
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IP=`echo $line| awk '{print $2}'`
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if [[ "$STRONG" -eq "1" ]]
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then
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tunneltest=`$IPSECBIN status | grep -e "IPsec SA established" | grep -e "newest IPSEC" |grep -e $CONN | wc -l`
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else
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tunneltest=`$IPSECBIN whack --status | grep -e "IPsec SA established" | grep -e "newest IPSEC" |grep -e "$CONN" | wc -l`
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fi
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if [[ "$tunneltest" -eq "0" ]]
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then
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count=$[$count+1]
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DOWN="$DOWN $CONN"
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fi
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if [[ "$PINGIP" -eq "1" && "$tunneltest" -eq "1" ]]
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then
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alive=`$FPINGBIN $IP -r 1 | grep alive | wc -l`
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if [[ "$alive" -eq "0" ]]
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then
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count=$[$count+1]
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DOWN="$DOWN $CONN (no ping)"
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fi
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fi
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i=$[$i+1]
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done < $PLUGINPATH/$GATEWAYLIST
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echo $DOWN
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}
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case "$1" in
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--help)
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print_help
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exit $STATE_OK
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;;
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-h)
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print_help
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exit $STATE_OK
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;;
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--version)
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print_revision $PLUGIN $REVISION
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exit $STATE_OK
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;;
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-V)
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print_revision $PLUGIN $REVISION
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exit $STATE_OK
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;;
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--tunnels)
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check_tunnel $1 $2
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;;
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-T)
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check_tunnel $1 $2
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;;
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*)
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print_help
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exit $STATE_OK
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esac
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