#!/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 FILENAME=$(mktemp -q) || exit 1 trap 'rm -f "$FILENAME"' EXIT # 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 $(awk -F'[<>]' '/ ch_snr/{print $3}' "$FILENAME") ) PWR_ARRAY=( 0 $(awk -F'[<>]' '/ ch_pwr/{print $3}' "$FILENAME") ) UP_PWR_ARRAY=( 0 $(awk -F'[<>]' '/ up_pwr/{print $3}' "$FILENAME") ) # # 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