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#!/bin/bash
# Check Grid Engine CSP certificate and CRL expiries
# Copyright (C) 2014 Dave Love, University of Liverpool
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Requires openssl on the path.
# We check the stuff under CATOP (e.g. /opt/sge/default/common/sgeCA),
# but not under LOCALTOP (e.g. /var/lib/sgeCA/sge_qmaster/default) on
# the assumption Nagios can't read that, and rely on it being
# synchonized.
set -e
trap fail ERR
fail () {
echo "error in check"
exit $STATE_UNKNOWN
}
REVISION=1.0
PROGPATH=`echo $0 | /bin/sed -e 's,[\\/][^\\/][^\\/]*$,,'`
. $PROGPATH/utils.sh
usage () {
echo "\
Usage: $(basename $0) -t <catop> -w <days> -c <days> [--help] [--version]
Grid Engine CSP-checking plugin for Nagios, using openssl(1). Prints a
list of expir{ed,ing} certificates, which may be user names, 'daemon', or 'CA'.
'CRL' may be included if the CRL next update time is too early.
-t, --catop CATOP location, per sge_ca -showCaTop, e.g.
/opt/sge/default/common/sgeCA
-w, --warning Report warning if any expiries within this number
of days
-c, --critcal Report critical if any expiries within this number
of days
-h, --help Print this help
--version Print version"
}
help () {
print_revision $PROGNAME $REVISION
echo; usage
}
while [ $# -gt 0 ]; do
case $1 in
(-h|--help) help; exit $STATE_OK;;
(-t|--catop) shift; catop=$1; shift;;
# (-l|--localtop) shift; localtop=$1; shift;;
(-w|--warning) shift; warn=$1; shift;;
(-c|--critical) shift; crit=$1; shift;;
(--version|-V) print_revision $PROGNAME $REVISION; exit $STATE_OK;;
(*) usage; exit $STATE_UNKNOWN;;
esac
done
if [ ! type openssl 2>/dev/null ]; then
echo "openssl not found"
exit $STATE_UNKNOWN
fi
if [ -z "$catop" -o -z "$warn" -o -z "$crit" ]; then
usage
exit $STATE_UNKNOWN
fi
if [ ! -d "$catop" ]; then
echo "catop not a directory"; exit $STATE_UNKNOWN
fi
if [[ ! "$warn$crit" =~ ^[0-9]+$ ]]; then
usage; exit $STATE_UNKNOWN
fi
now=$(date +%s)
warnt=$(($warn*3600*24 + $now))
critt=$(($crit*3600*24 + $now))
critnum=0
warnnum=0
maxcrit=9
maxwarn=9
exp=$(date -d "$(openssl crl -nextupdate -noout -in "$catop/ca-crl.pem" | sed -e s/nextUpdate=//)" +%s)
if [[ $exp -lt $critt ]]; then
critlist=CRL; critnum=1
elif [[ $exp -lt $warnt ]]; then
warnlist=CRL; warnnum=1
fi
warn_or_crit () {
exp=$(date -d "$(openssl x509 -enddate -noout -in "$1" | sed -e s/notAfter=//)" +%s)
if [[ $exp -lt $critt ]]; then
echo crit
elif [[ $exp -lt $warnt ]]; then
echo warn
fi
}
case $(warn_or_crit $catop/cacert.pem) in
(crit) critlist="$critlist CA"; critnum=$(($critnum + 1));;
(warn) warnlist="$warnlist CA"; warnnum=$(($warnnum + 1));;
esac
case $(warn_or_crit $catop/certs/cert.pem) in
(crit) critlist="$critlist daemon"; critnum=$(($critnum + 1));;
(warn) warnlist="$warnlist daemon"; warnnum=$(($warnnum + 1));;
esac
for c in "$catop"/usercerts/*; do
(($critnum > $maxcrit)) && break
case $(warn_or_crit $c/cert.pem) in
(crit) critnum=$(($critnum + 1))
(($critnum > $maxcrit)) && break
critlist="$critlist $(basename $c)";;
(warn) (($critnum > 1)) && continue
warnnum=$(($warnnum + 1))
(($warnnum > $maxwarn)) && continue
warnlist="$warnlist $(basename $c)";;
esac
done
# This won't work in general, as Nagios probably won't have permission
# to read the keys.
# for c in "$localtop"/userkeys/*; do
# (($critnum > $maxcrit)) && break
# case $(warn_or_crit $c/cert.pem) in
# (crit) critnum=$(($critnum + 1))
# (($critnum > $maxcrit)) && break
# critlist="$critlist $(basename $c)(local)";;
# (warn) (($critnum > 1)) && continue
# warnnum=$(($warnnum + 1))
# (($warnnum > $maxwarn)) && continue
# warnlist="$warnlist $(basename $c)(local)";;
# esac
# done
(( $critnum > $maxcrit)) && critlist="$critlist ..."
(( $warnnum > $maxwarn)) && warnlist="$warnlist ..."
if (( $critnum > 0 )); then
echo "CRITICAL: expiry critical: $critlist"
exit $STATE_CRITICAL
elif (( $warnnum > 0 )); then
echo "WARNING: expiry warning: $critlist"
exit $STATE_WARNING
else
echo OK
exit $STATE_OK
fi
|
