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authorFederico Ceratto <federico.ceratto@gmail.com>2016-03-30 21:40:42 +0000
committerFederico Ceratto <federico.ceratto@gmail.com>2016-03-30 21:40:42 +0000
commit9ce153ce7167c11adba8ac225edc7a707e97c6eb (patch)
tree9f6e849cce2dcc7e5b4e9e6252c843dc2d0787a2 /charts.d/ap.chart.sh
downloadnetdata-9ce153ce7167c11adba8ac225edc7a707e97c6eb.tar.xz
netdata-9ce153ce7167c11adba8ac225edc7a707e97c6eb.zip
Imported Upstream version 1.0.0upstream/1.0.0
Diffstat (limited to 'charts.d/ap.chart.sh')
-rwxr-xr-xcharts.d/ap.chart.sh160
1 files changed, 160 insertions, 0 deletions
diff --git a/charts.d/ap.chart.sh b/charts.d/ap.chart.sh
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+#!/bin/sh
+
+# _update_every is a special variable - it holds the number of seconds
+# between the calls of the _update() function
+ap_update_every=
+ap_priority=6900
+
+declare -A ap_devs=()
+
+export PATH="${PATH}:/sbin:/usr/sbin:/usr/local/sbin"
+
+# _check is called once, to find out if this chart should be enabled or not
+ap_check() {
+ local ev=$(iw dev | awk '
+ BEGIN {
+ i = "";
+ ssid = "";
+ ap = 0;
+ }
+ /^[ \t]+Interface / {
+ if( ap == 1 ) {
+ print "ap_devs[" i "]=\"" ssid "\""
+ }
+
+ i = $2;
+ ssid = "";
+ ap = 0;
+ }
+ /^[ \t]+ssid / { ssid = $2; }
+ /^[ \t]+type AP$/ { ap = 1; }
+ END {
+ if( ap == 1 ) {
+ print "ap_devs[" i "]=\"" ssid "\""
+ }
+ }
+ ')
+ eval "${ev}"
+
+ # this should return:
+ # - 0 to enable the chart
+ # - 1 to disable the chart
+
+ [ ${#ap_devs[@]} -gt 0 ] && return 0
+ return 1
+}
+
+# _create is called once, to create the charts
+ap_create() {
+ local ssid dev
+
+ for dev in "${!ap_devs[@]}"
+ do
+ ssid="${ap_devs[${dev}]}"
+
+ # create the chart with 3 dimensions
+ cat <<EOF
+CHART ap_clients.${dev} '' "Connected clients to ${ssid} on ${dev}" "clients" ${dev} ap.clients line $[ap_priority + 1] $ap_update_every
+DIMENSION clients '' absolute 1 1
+
+CHART ap_bandwidth.${dev} '' "Bandwidth for ${ssid} on ${dev}" "kilobits/s" ${dev} ap.net area $[ap_priority + 2] $ap_update_every
+DIMENSION received '' incremental 8 1024
+DIMENSION sent '' incremental -8 1024
+
+CHART ap_packets.${dev} '' "Packets for ${ssid} on ${dev}" "packets/s" ${dev} ap.packets line $[ap_priority + 3] $ap_update_every
+DIMENSION received '' incremental 1 1
+DIMENSION sent '' incremental -1 1
+
+CHART ap_issues.${dev} '' "Transmit Issues for ${ssid} on ${dev}" "issues/s" ${dev} ap.issues line $[ap_priority + 4] $ap_update_every
+DIMENSION retries 'tx retries' incremental 1 1
+DIMENSION failures 'tx failures' incremental -1 1
+
+CHART ap_signal.${dev} '' "Average Signal for ${ssid} on ${dev}" "dBm" ${dev} ap.signal line $[ap_priority + 5] $ap_update_every
+DIMENSION signal 'average signal' absolute 1 1
+
+CHART ap_bitrate.${dev} '' "Bitrate for ${ssid} on ${dev}" "Mbps" ${dev} ap.bitrate line $[ap_priority + 6] $ap_update_every
+DIMENSION receive '' absolute 1 1000
+DIMENSION transmit '' absolute -1 1000
+DIMENSION expected 'expected throughput' absolute 1 1000
+EOF
+
+ done
+
+ return 0
+}
+
+# _update is called continiously, to collect the values
+ap_update() {
+ # the first argument to this function is the microseconds since last update
+ # pass this parameter to the BEGIN statement (see bellow).
+
+ # do all the work to collect / calculate the values
+ # for each dimension
+ # remember: KEEP IT SIMPLE AND SHORT
+
+ for dev in "${!ap_devs[@]}"
+ do
+ iw ${dev} station dump |\
+ awk "
+ BEGIN {
+ c = 0;
+ rb = 0;
+ tb = 0;
+ rp = 0;
+ tp = 0;
+ tr = 0;
+ tf = 0;
+ tt = 0;
+ rt = 0;
+ s = 0;
+ g = 0;
+ e = 0;
+ }
+ /^Station/ { c++; }
+ /^[ \\t]+rx bytes:/ { rb += \$3 }
+ /^[ \\t]+tx bytes:/ { tb += \$3 }
+ /^[ \\t]+rx packets:/ { rp += \$3 }
+ /^[ \\t]+tx packets:/ { tp += \$3 }
+ /^[ \\t]+tx retries:/ { tr += \$3 }
+ /^[ \\t]+tx failed:/ { tf += \$3 }
+ /^[ \\t]+signal:/ { s += \$2; }
+ /^[ \\t]+rx bitrate:/ { x = \$3; rt += x * 1000; }
+ /^[ \\t]+tx bitrate:/ { x = \$3; tt += x * 1000; }
+ /^[ \\t]+expected throughput:(.*)Mbps/ {
+ x=\$3;
+ sub(/Mbps/, \"\", x);
+ e += x * 1000;
+ }
+ END {
+ print \"BEGIN ap_clients.${dev}\"
+ print \"SET clients = \" c;
+ print \"END\"
+ print \"BEGIN ap_bandwidth.${dev}\"
+ print \"SET received = \" rb;
+ print \"SET sent = \" tb;
+ print \"END\"
+ print \"BEGIN ap_packets.${dev}\"
+ print \"SET received = \" rp;
+ print \"SET sent = \" tp;
+ print \"END\"
+ print \"BEGIN ap_issues.${dev}\"
+ print \"SET retries = \" tr;
+ print \"SET failures = \" tf;
+ print \"END\"
+ print \"BEGIN ap_signal.${dev}\"
+ print \"SET signal = \" s / c;
+ print \"END\"
+
+ if( c == 0 ) c = 1;
+ print \"BEGIN ap_bitrate.${dev}\"
+ print \"SET receive = \" rt / c;
+ print \"SET transmit = \" tt / c;
+ print \"SET expected = \" e / c;
+ print \"END\"
+ }
+ "
+ done
+
+ return 0
+}
+