2015-10-19 16:29:35 +03:00
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#!/bin/sh
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#
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# Simple wireless statistics gatherer for collectd
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#
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# Description: Simple wireless statistics gatherer for collectd
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# Prereqs: OpenWRT compatible system / wlinfo / wl
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# Used via: Collectd exec plugin type
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# Author: Vladimir Vitkov <vvitkov@linux-bg.org>
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#
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# Version: 0.1
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# Date: 2015.05.25
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#
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# Changelog: 2015.05.25 - Initial version
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# Variable Definition
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2015-11-04 17:50:52 +02:00
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_HOSTNAME="${COLLECTD_HOSTNAME:-localhost}"
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_PERIOD="${COLLECTD_INTERVAL:-60}"
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2015-10-19 16:29:35 +03:00
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_PLUGIN='wlstats'
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# Binaries
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_iwinfo='iwinfo'
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_iw='iw'
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# main loop
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while true ; do
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_start_time=$(date +%s)
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# do work
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for _interface in $(${_iwinfo} | grep 'ESSID' | awk '{print $1}') ; do
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#for _interface in wlan0 ; do
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# get detailed essid info and prep for send
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${_iwinfo} ${_interface} info > /var/run/${_start_time}_${_interface}
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_tx_power=$(grep 'Tx-Power' /var/run/${_start_time}_${_interface} | awk '{print $2}')
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_link_quality=$(grep 'Link Quality' /var/run/${_start_time}_${_interface} | awk '{print $6}' | cut -d'/' -f1)
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_signal=$(grep 'Signal' /var/run/${_start_time}_${_interface} | awk '{print $2}' | tr -d '-')
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_noise=$(grep 'Noise' /var/run/${_start_time}_${_interface} | awk '{print $5}' | tr -d '-')
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_bit_rate=$(grep 'Bit Rate' /var/run/${_start_time}_${_interface} | awk '{print $3}')
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2015-11-04 17:51:13 +02:00
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_channel=$(grep 'Channel' /var/run/${_start_time}_${_interface} | awk '{print $4}')
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2015-10-19 16:29:35 +03:00
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_clients=$(${_iw} ${_interface} station dump | grep '^Station' | wc -l)
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# start emiting metrics
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echo -e "PUTVAL ${_HOSTNAME}/${_PLUGIN}-${_interface}/gauge-tx_power ${_start_time}:${_tx_power}"
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echo -e "PUTVAL ${_HOSTNAME}/${_PLUGIN}-${_interface}/gauge-link_quality ${_start_time}:${_link_quality}"
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echo -e "PUTVAL ${_HOSTNAME}/${_PLUGIN}-${_interface}/gauge-signal ${_start_time}:${_signal}"
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echo -e "PUTVAL ${_HOSTNAME}/${_PLUGIN}-${_interface}/gauge-noise ${_start_time}:${_noise}"
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echo -e "PUTVAL ${_HOSTNAME}/${_PLUGIN}-${_interface}/gauge-bit_rate ${_start_time}:${_bit_rate}"
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2015-11-04 17:51:13 +02:00
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echo -e "PUTVAL ${_HOSTNAME}/${_PLUGIN}-${_interface}/gauge-channel ${_start_time}:${_channel}"
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2015-10-19 16:29:35 +03:00
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echo -e "PUTVAL ${_HOSTNAME}/${_PLUGIN}-${_interface}/gauge-clients ${_start_time}:${_clients}"
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# now let's pick up the statistics
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for _metric in $(ls -1 /sys/kernel/debug/ieee80211/*/netdev:${_interface}/../statistics/) ; do
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echo -e "PUTVAL ${_HOSTNAME}/${_PLUGIN}-${_interface}/counter-$(echo ${_metric}) ${_start_time}:$(cat /sys/kernel/debug/ieee80211/*/netdev:${_interface}/../statistics/${_metric})"
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done
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# nuke the temp file
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rm -f /var/run/${_start_time}_${_interface}
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done
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# now calculate sleep time
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_end_time=$(date +%s)
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sleep $(echo ${_PERIOD} ${_end_time} ${_start_time} | awk '{print $1 - $2 + $3 }')
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done
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