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https://github.com/Security-Onion-Solutions/securityonion.git
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45 lines
1.7 KiB
Bash
45 lines
1.7 KiB
Bash
#!/bin/bash
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#
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# Copyright Security Onion Solutions LLC and/or licensed to Security Onion Solutions LLC under one
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# or more contributor license agreements. Licensed under the Elastic License 2.0 as shown at
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# https://securityonion.net/license; you may not use this file except in compliance with the
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# Elastic License 2.0.
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# This script returns the average of all the workers average capture loss to telegraf / influxdb in influx format include nanosecond precision timestamp
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# if this script isn't already running
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{%- from 'zeek/config.map.jinja' import ZEEKMERGED %}
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if [[ ! "`pidof -x $(basename $0) -o %PPID`" ]]; then
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if [ -d "/host/nsm/zeek/spool/logger" ]; then
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{%- if ZEEKMERGED.config.node.pins %}
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WORKERS={{ ZEEKMERGED.config.node.pins | length }}
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{%- else %}
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WORKERS={{ ZEEKMERGED.config.node.lb_procs }}
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{%- endif %}
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ZEEKLOG=/host/nsm/zeek/spool/logger/capture_loss.log
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elif [ -d "/host/nsm/zeek/spool/zeeksa" ]; then
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WORKERS=1
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ZEEKLOG=/host/nsm/zeek/spool/zeeksa/capture_loss.log
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else
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echo 'Zeek capture_loss.log not found' >/dev/stderr
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exit 2
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fi
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LASTCAPTURELOSSLOG=/var/log/telegraf/lastcaptureloss.txt
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if [ -f "$ZEEKLOG" ]; then
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CURRENTTS=$(tail -1 $ZEEKLOG | jq .ts | sed 's/"//g')
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if [ -f "$LASTCAPTURELOSSLOG" ]; then
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LASTTS=$(cat $LASTCAPTURELOSSLOG)
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if [[ "$LASTTS" != "$CURRENTTS" ]]; then
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LOSS=$(tail -$WORKERS $ZEEKLOG | awk -F, '{print $NF}' | sed 's/}//' | awk -v WORKERS=$WORKERS -F: '{LOSS += $2 / WORKERS} END { print LOSS}')
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echo "zeekcaptureloss loss=$LOSS"
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fi
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fi
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echo "$CURRENTTS" > $LASTCAPTURELOSSLOG
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fi
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fi
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exit 0
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