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check_pf_gw_status
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check_pf_gw_status
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#!/bin/sh
#
# Manuel Gayer 2022-02-22
GWSTATUSCMD="/usr/local/sbin/pfSsh.php playback gatewaystatus"
rmin='0.000'
plmin=0
plmax=100
exitstatus=3
usage() {
echo "check_pf_gw_status - Nagios Plugin for checking Gateway Status"
echo ""
echo "check_pf_gw_status [-h] ( -l | -G <gwname> -w <wrtt,wpl>% -c <crtt,cpl>% )"
echo ""
exit 3
}
listgw() {
$GWSTATUSCMD | tail -n +2 | awk '{print $1}'
}
parse_args() {
while test $# -gt 0; do
case $1 in
-h)
usage
shift
;;
-l)
echo 'List of gateways on this pfsense:'
listgw
exit 3
shift
;;
-G)
gwname=$2
shift
;;
-w)
wrtt=$(echo $2 | cut -d',' -f1)
wpl=$(echo $2 | cut -d',' -f2 | tr -d '%')
shift
;;
-c)
crtt=$(echo $2 | cut -d',' -f1)
cpl=$(echo $2 | cut -d',' -f2 | tr -d '%')
shift
;;
*)
echo "ERROR: unknown parameter \"$1\""
usage
shift
;;
esac
shift
done
}
parse_args "$@"
if [ -z "$gwname" ] || [ -z "$wrtt" ] || [ -z "$wpl" ] || [ -z "$crtt" ] || [ -z "$cpl" ]; then
usage
fi
wrtt=$(printf "%0.3f" "$wrtt")
crtt=$(printf "%0.3f" "$crtt")
STAT=$($GWSTATUSCMD | grep "^${gwname}\s" | sed -E -e 's/[[:blank:]]+/,/g' -e 's/ms//g' -e 's/%//g')
if [ -z "$STAT" ]; then
echo -n "Gateway with name '${gwname}' does not exist, possible values are: "
listgw | xargs
exit 3
fi
GWNAME=$(echo $STAT | cut -d',' -f1)
GWMONITOR=$(echo $STAT | cut -d',' -f2)
GWSOURCE=$(echo $STAT | cut -d',' -f3)
GWRTT=$(printf "%0.3f" $(echo $STAT | cut -d',' -f4))
GWRTTSD=$(printf "%0.3f" $(echo $STAT | cut -d',' -f5))
GWLOSS=$(echo $STAT | cut -d',' -f6)
GWSTATUS=$(echo $STAT | cut -d',' -f7)
GWSUBSTATUS=$(echo $STAT | cut -d',' -f8 | sed 's/none//')
if [ -n "$GWSUBSTATUS" ]; then
GWSUBSTATUS=' ('$GWSUBSTATUS')'
fi
if [ "$GWSTATUS" = 'online' ]; then
exitstatus=0
fi
if [ 1 -eq "$(echo "${GWRTT} >= ${wrtt}" | bc)" ] && [ 1 -eq "$(echo "${GWRTT} < ${crtt}" | bc)" ] ||
[ 1 -eq "$(echo "${GWLOSS} >= ${wpl}" | bc)" ] && [ 1 -eq "$(echo "${GWLOSS} < ${cpl}" | bc)" ]; then
exitstatus=1
fi
if [ "$GWSTATUS" = 'down' ] ||
[ 1 -eq "$(echo "${GWRTT} >= ${crtt}" | bc)" ] ||
[ 1 -eq "$(echo "${GWLOSS} >= ${cpl}" | bc)" ]; then
exitstatus=2
fi
case $exitstatus in
0) exitmessage='OK' ;;
1) exitmessage='WARNING' ;;
2) exitmessage='CRITICAL' ;;
3) exitmessage='UNKNOWN' ;;
esac
echo "GATEWAY ${GWNAME} ${exitmessage} - Status = ${GWSTATUS}${GWSUBSTATUS}, Packet loss = ${GWLOSS}%, RTT = ${GWRTT}ms, Monitor=${GWMONITOR}|rtt=${GWRTT}ms;${wrtt};${crtt};${rmin} pl=${GWLOSS}%;${wpl};${cpl};${plmin};${plmax}"
exit $exitstatus