mirror of
https://github.com/Security-Onion-Solutions/securityonion.git
synced 2025-12-07 17:52:46 +01:00
52 lines
1.6 KiB
Bash
52 lines
1.6 KiB
Bash
#!/bin/bash
|
|
#
|
|
# Copyright 2014,2015,2016,2017,2018,2019,2020,2021 Security Onion Solutions, LLC
|
|
#
|
|
# 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/>.
|
|
|
|
|
|
APP=suriloss
|
|
lf=/tmp/$APP-pidLockFile
|
|
# create empty lock file if none exists
|
|
cat /dev/null >> $lf
|
|
read lastPID < $lf
|
|
# if lastPID is not null and a process with that pid exists , exit
|
|
[ ! -z "$lastPID" -a -d /proc/$lastPID ] && exit
|
|
echo $$ > $lf
|
|
|
|
SURILOG=$(tac /var/log/suricata/stats.log | grep kernel | head -4)
|
|
CHECKIT=$(echo $SURILOG | grep -o 'drop' | wc -l)
|
|
|
|
if [ $CHECKIT == 2 ]; then
|
|
declare RESULT=($SURILOG)
|
|
|
|
CURRENTDROP=${RESULT[4]}
|
|
PASTDROP=${RESULT[14]}
|
|
DROPPED=$((CURRENTDROP - PASTDROP))
|
|
if [ $DROPPED == 0 ]; then
|
|
LOSS=0
|
|
echo "suridrop drop=0"
|
|
else
|
|
CURRENTPACKETS=${RESULT[9]}
|
|
PASTPACKETS=${RESULT[19]}
|
|
TOTALCURRENT=$((CURRENTPACKETS + CURRENTDROP))
|
|
TOTALPAST=$((PASTPACKETS + PASTDROP))
|
|
TOTAL=$((TOTALCURRENT - TOTALPAST))
|
|
|
|
LOSS=$(echo 4 k $DROPPED $TOTAL / p | dc)
|
|
echo "suridrop drop=$LOSS"
|
|
fi
|
|
else
|
|
echo "suridrop drop=0"
|
|
fi |