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contrib-munin/plugins/modem/cisco-epc3010_
2014-10-30 09:56:25 +01:00

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#!/bin/bash
# -*- sh -*-
: << =cut
=head1 NAME
epc3010_ - munin-plugin to monitor Upstream/Downstream Power Levels and Signal to Noise Ratio on Cisco EPC3010 EuroDocsis 3.0 Data Modem
=head1 CONFIGURATION
This plugin does not require configuration.
Create two links called epc3010_downstream and epc3010_upstream in order to use this script.
=head1 AUTHOR
Finn Andersen - xiphias256@gmail.com
=head1 LICENSE
GPLv2
=head1 MAGIC MARKERS
#%# family=contrib
#%# capabilities=autoconf
=cut
#
###############################################
#
# HISTORY
# v1.0 : Initial release
# 1.0.1 : More secure handling of tempfiles
#
###############################################
#
# Decide if you want upstream og downstream info
DIRECTION=${0##*epc3010_}
# Check if argument is autoconfig or config
case "$1" in
autoconfig)
# Does your network have a Cisco EPC3010?
curl -s http://192.168.100.1/Docsis_system.asp | grep -q "Cisco EPC3010"
if [ $? -eq 0 ]; then
echo "yes"
exit 0
else
echo "Can't find Cisco EPC3010 modem in your network"
exit 1
fi
;;
config)
if [ $DIRECTION == "downstream" ]; then
printf "graph_title Cisco EPC3010 Downstream measurements\n";
printf "graph_args -l 0 --base 1000\n"
printf "graph_category other\n"
printf "graph_vlabel Small number is Power Level, large number is SNR\n"
printf "graph_info Downstream Signal to Noise Ratio (dB) and Power Level (dBmV) from Cisco EPC3010 modem. Info is scraped from statuspage on the modem (http://192.168.100.1)\n"
printf "channel_1_pwr.label Channel 1 (dBmV)\n"
printf "channel_1_pwr.type GAUGE\n"
printf "channel_2_pwr.label Channel 2 (dBmV)\n"
printf "channel_2_pwr.type GAUGE\n"
printf "channel_3_pwr.label Channel 3 (dBmV)\n"
printf "channel_3_pwr.type GAUGE\n"
printf "channel_4_pwr.label Channel 4 (dBmV)\n"
printf "channel_4_pwr.type GAUGE\n"
printf "channel_5_pwr.label Channel 5 (dBmV)\n"
printf "channel_5_pwr.type GAUGE\n"
printf "channel_6_pwr.label Channel 6 (dBmV)\n"
printf "channel_6_pwr.type GAUGE\n"
printf "channel_7_pwr.label Channel 7 (dBmV)\n"
printf "channel_7_pwr.type GAUGE\n"
printf "channel_8_pwr.label Channel 8 (dBmV)\n"
printf "channel_8_pwr.type GAUGE\n"
printf "channel_1_snr.label Channel 1 (dB)\n"
printf "channel_1_snr.type GAUGE\n"
printf "channel_2_snr.label Channel 2 (dB)\n"
printf "channel_2_snr.type GAUGE\n"
printf "channel_3_snr.label Channel 3 (dB)\n"
printf "channel_3_snr.type GAUGE\n"
printf "channel_4_snr.label Channel 4 (dB)\n"
printf "channel_4_snr.type GAUGE\n"
printf "channel_5_snr.label Channel 5 (dB)\n"
printf "channel_5_snr.type GAUGE\n"
printf "channel_6_snr.label Channel 6 (dB)\n"
printf "channel_6_snr.type GAUGE\n"
printf "channel_7_snr.label Channel 7 (dB)\n"
printf "channel_7_snr.type GAUGE\n"
printf "channel_8_snr.label Channel 8 (dB)\n"
printf "channel_8_snr.type GAUGE\n"
exit 0
fi
if [ "$DIRECTION" == "upstream" ]; then
printf "graph_title Cisco EPC3010 Upstream measurements\n"
printf "graph_args -l 30 --base 1000\n"
printf "graph_category other\n"
printf "graph_vlabel Power level in dBmV\n"
printf "graph_info Upstream Power Levels from Cisco EPC3010 modem,scraped from its statuspage (http://192.168.100.1)\n"
printf "channel_1_pwr.label Channel 1 (dBmV)\n"
printf "channel_1_pwr.type GAUGE\n"
printf "channel_2_pwr.label Channel 2 (dBmV)\n"
printf "channel_2_pwr.type GAUGE\n"
printf "channel_3_pwr.label Channel 3 (dBmV)\n"
printf "channel_3_pwr.type GAUGE\n"
printf "channel_4_pwr.label Channel 4 (dBmV)\n"
printf "channel_4_pwr.type GAUGE\n"
exit 0
fi
;;
esac
# Location and name of tempfile to parse
FILENAME=$(mktemp /tmp/cisco_epc3010-XXXX.dump) || exit 1
# Get statuspage from the modem
curl -s -o $FILENAME http://192.168.100.1/Docsis_system.asp
# Bash arrays starts on index 0, we 0-pad the first index. It makes it easier later on..
SNR_ARRAY=( 0 $(cat $FILENAME | grep " ch_snr" | awk -F "nowrap>| <script" ' {print $2 }') )
PWR_ARRAY=( 0 $(cat $FILENAME | grep " ch_pwr" | awk -F "nowrap> | <script" ' {print $2 }') )
UP_PWR_ARRAY=( 0 $(cat $FILENAME | grep " up_pwr" | awk -F "nowrap>| <script" ' {print $2 }') )
#
# Downstream info - Modem outputs both Power Levels and Signal to Noise Ratio
#
if [ "$DIRECTION" == "downstream" ]; then
total=${#PWR_ARRAY[*]}
for (( index=1; index<$(( $total )); index++ ))
do
printf "channel_%d_pwr.value %s\n" $index ${PWR_ARRAY[$index]}
done
total=${#SNR_ARRAY[*]}
for (( index=1; index<$(( $total )); index++ ))
do
printf "channel_%d_snr.value %s\n" $index ${SNR_ARRAY[$index]}
done
exit 0
fi
#
# Upstream info - Modem outputs Power Levels
#
if [ "$DIRECTION" == "upstream" ]; then
total=${#UP_PWR_ARRAY[*]}
for (( index=1; index<$(( $total )); index++ ))
do
printf "channel_%d_pwr.value %s\n" $index ${UP_PWR_ARRAY[$index]}
done
exit 0
fi
#
# Remove tempory file, used for parsing data
#
trap "rm -rf $FILENAME" EXIT