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# shellcheck shell=bash
# no need for shebang - this file is loaded from charts.d.plugin
# SPDX-License-Identifier: GPL-3.0-or-later
# netdata
# real-time performance and health monitoring, done right!
# (C) 2016 Costa Tsaousis <costa@tsaousis.gr>
#
# sensors docs
# https://www.kernel.org/doc/Documentation/hwmon/sysfs-interface
# if this chart is called X.chart.sh, then all functions and global variables
# must start with X_
# the directory the kernel keeps sensor data
sensors_sys_dir="${NETDATA_HOST_PREFIX}/sys/devices"
# how deep in the tree to check for sensor data
sensors_sys_depth=10
# if set to 1, the script will overwrite internal
# script functions with code generated ones
# leave to 1, is faster
sensors_source_update=1
# how frequently to collect sensor data
# the default is to collect it at every iteration of charts.d
sensors_update_every=
sensors_priority=90000
declare -A sensors_excluded=()
sensors_find_all_files() {
find "$1" -maxdepth $sensors_sys_depth -name \*_input -o -name temp 2>/dev/null
}
sensors_find_all_dirs() {
# shellcheck disable=SC2162
sensors_find_all_files "$1" | while read; do
dirname "$REPLY"
done | sort -u
}
# _check is called once, to find out if this chart should be enabled or not
sensors_check() {
# this should return:
# - 0 to enable the chart
# - 1 to disable the chart
[ -z "$(sensors_find_all_files "$sensors_sys_dir")" ] && error "no sensors found in '$sensors_sys_dir'." && return 1
return 0
}
sensors_check_files() {
# we only need sensors that report a non-zero value
# also remove not needed sensors
local f v excluded
for f in "$@"; do
[ ! -f "$f" ] && continue
for ex in "${sensors_excluded[@]}"; do
[[ $f =~ .*$ex$ ]] && excluded='1' && break
done
[ "$excluded" != "1" ] && v="$(cat "$f")" || v=0
v=$((v + 1 - 1))
[ $v -ne 0 ] && echo "$f" && continue
excluded=
error "$f gives zero values"
done
}
sensors_check_temp_type() {
# valid temp types are 1 to 6
# disabled sensors have the value 0
local f t v
for f in "$@"; do
# shellcheck disable=SC2001
t=$(echo "$f" | sed "s|_input$|_type|g")
[ "$f" = "$t" ] && echo "$f" && continue
[ ! -f "$t" ] && echo "$f" && continue
v="$(cat "$t")"
v=$((v + 1 - 1))
[ $v -ne 0 ] && echo "$f" && continue
error "$f is disabled"
done
}
# _create is called once, to create the charts
sensors_create() {
local path dir name x file lfile labelname device subsystem id type mode files multiplier divisor
# we create a script with the source of the
# sensors_update() function
# - the highest speed we can achieve -
[ $sensors_source_update -eq 1 ] && echo >"$TMP_DIR/sensors.sh" "sensors_update() {"
for path in $(sensors_find_all_dirs "$sensors_sys_dir" | sort -u); do
dir=$(basename "$path")
device=
subsystem=
id=
type=
name=
[ -h "$path/device" ] && device=$(readlink -f "$path/device")
[ ! -z "$device" ] && device=$(basename "$device")
[ -z "$device" ] && device="$dir"
[ -h "$path/subsystem" ] && subsystem=$(readlink -f "$path/subsystem")
[ ! -z "$subsystem" ] && subsystem=$(basename "$subsystem")
[ -z "$subsystem" ] && subsystem="$dir"
[ -f "$path/name" ] && name=$(cat "$path/name")
[ -z "$name" ] && name="$dir"
[ -f "$path/type" ] && type=$(cat "$path/type")
[ -z "$type" ] && type="$dir"
id="$(fixid "$device.$subsystem.$dir")"
debug "path='$path', dir='$dir', device='$device', subsystem='$subsystem', id='$id', name='$name'"
for mode in temperature voltage fans power current energy humidity; do
files=
multiplier=1
divisor=1
algorithm="absolute"
case $mode in
temperature)
files="$(
ls "$path"/temp*_input 2>/dev/null
ls "$path/temp" 2>/dev/null
)"
files="$(sensors_check_files "$files")"
files="$(sensors_check_temp_type "$files")"
[ -z "$files" ] && continue
echo "CHART sensors.temp_$id '' '$name Temperature' 'Celsius' 'temperature' 'sensors.temp' line $((sensors_priority + 1)) $sensors_update_every"
echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.temp_$id \$1\""
divisor=1000
;;
voltage)
files="$(ls "$path"/in*_input 2>/dev/null)"
files="$(sensors_check_files "$files")"
[ -z "$files" ] && continue
echo "CHART sensors.volt_$id '' '$name Voltage' 'Volts' 'voltage' 'sensors.volt' line $((sensors_priority + 2)) $sensors_update_every"
echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.volt_$id \$1\""
divisor=1000
;;
current)
files="$(ls "$path"/curr*_input 2>/dev/null)"
files="$(sensors_check_files "$files")"
[ -z "$files" ] && continue
echo "CHART sensors.curr_$id '' '$name Current' 'Ampere' 'current' 'sensors.curr' line $((sensors_priority + 3)) $sensors_update_every"
echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.curr_$id \$1\""
divisor=1000
;;
power)
files="$(ls "$path"/power*_input 2>/dev/null)"
files="$(sensors_check_files "$files")"
[ -z "$files" ] && continue
echo "CHART sensors.power_$id '' '$name Power' 'Watt' 'power' 'sensors.power' line $((sensors_priority + 4)) $sensors_update_every"
echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.power_$id \$1\""
divisor=1000000
;;
fans)
files="$(ls "$path"/fan*_input 2>/dev/null)"
files="$(sensors_check_files "$files")"
[ -z "$files" ] && continue
echo "CHART sensors.fan_$id '' '$name Fans Speed' 'Rotations / Minute' 'fans' 'sensors.fans' line $((sensors_priority + 5)) $sensors_update_every"
echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.fan_$id \$1\""
;;
energy)
files="$(ls "$path"/energy*_input 2>/dev/null)"
files="$(sensors_check_files "$files")"
[ -z "$files" ] && continue
echo "CHART sensors.energy_$id '' '$name Energy' 'Joule' 'energy' 'sensors.energy' areastack $((sensors_priority + 6)) $sensors_update_every"
echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.energy_$id \$1\""
algorithm="incremental"
divisor=1000000
;;
humidity)
files="$(ls "$path"/humidity*_input 2>/dev/null)"
files="$(sensors_check_files "$files")"
[ -z "$files" ] && continue
echo "CHART sensors.humidity_$id '' '$name Humidity' 'Percent' 'humidity' 'sensors.humidity' line $((sensors_priority + 7)) $sensors_update_every"
echo >>"$TMP_DIR/sensors.sh" "echo \"BEGIN sensors.humidity_$id \$1\""
divisor=1000
;;
*)
continue
;;
esac
for x in $files; do
file="$x"
fid="$(fixid "$file")"
lfile="$(basename "$file" | sed "s|_input$|_label|g")"
labelname="$(basename "$file" | sed "s|_input$||g")"
if [ ! "$path/$lfile" = "$file" ] && [ -f "$path/$lfile" ]; then
labelname="$(cat "$path/$lfile")"
fi
echo "DIMENSION $fid '$labelname' $algorithm $multiplier $divisor"
echo >>"$TMP_DIR/sensors.sh" "echo \"SET $fid = \"\$(< $file )"
done
echo >>"$TMP_DIR/sensors.sh" "echo END"
done
done
[ $sensors_source_update -eq 1 ] && echo >>"$TMP_DIR/sensors.sh" "}"
# ok, load the function sensors_update() we created
# shellcheck source=/dev/null
[ $sensors_source_update -eq 1 ] && . "$TMP_DIR/sensors.sh"
return 0
}
# _update is called continuously, to collect the values
sensors_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
# shellcheck source=/dev/null
[ $sensors_source_update -eq 0 ] && . "$TMP_DIR/sensors.sh" "$1"
return 0
}
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