/usr/lib/xymon/client/ext/temp is in hobbit-plugins 20170628.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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# Copyright (C) 2012 Christoph Berg <myon@debian.org>
# Copyright (C) 2015 Axel Beckert <abe@debian.org>
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following
# conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
use strict;
use warnings;
use Module::Load::Conditional qw(can_load); # Needs to be loaded before Hobbit
use Hobbit;
use Carp;
use File::Which;
use YAML::Tiny;
my $bb = new Hobbit('temp');
#############################################################################
# Configuration of some basic limits if no limits are given by the hardware #
#############################################################################
my @CONFIG = qw(/etc/xymon/temp.yaml /etc/xymon/temp.local.yaml);
# Limits in degrees Celsius
my %yellow = (
disk => 47,
cpu => 80,
gpu => 80,
ram => 80,
);
my %red = (
disk => 55,
cpu => 90,
gpu => 90,
ram => 90,
);
foreach my $filename (@CONFIG) {
if ( -f $filename ) {
my $temp_cfg = YAML::Tiny->read($filename)->[0];
foreach my $key (keys %$temp_cfg) {
my $value = $temp_cfg->{$key};
if (ref($value) eq 'HASH') {
my $hash = $value;
if (exists $hash->{yellow}) {
$yellow{$key} = 0 + $hash->{yellow};
}
if (exists $hash->{red}) {
$red{$key} = 0 + $hash->{red};
}
} elsif (ref($value) eq 'ARRAY') {
my $array = $value;
if (exists $array->[0]) {
$yellow{$key} = 0 + $array->[0];
}
if (exists $array->[1]) {
$red{$key} = 0 + $array->[1];
}
} else {
if (defined $value) {
$yellow{$key} = $red{$key} = 0 + $value;
}
}
}
}
}
#############################################################################
# End of Configuration #
#############################################################################
my $trends = Hobbit::trends;
my $hddtemp = which('hddtemp');
my $sudo = which('sudo');
my $nvsmi = which('nvidia-smi');
my $smartctl = which('smartctl');
# find /sys -iname '*therm*' -o -iname '*tz*' -o -iname '*temp*' -ls
my @zones = sort glob "/sys/class/thermal/*/temp";
my @coretemp = sort(glob('/sys/devices/platform/*/hwmon/hwmon*/temp*_input'),
glob('/sys/devices/platform/*/temp*_input'),
glob('/sys/devices/pci*/*/temp*_input'));
my @harddisks = sort(glob('/dev/[hs]d[a-z]'),
glob('/dev/[hs]d[a-z][a-z]'));
my @areca_raids = sort(`fgrep -l Areca /sys/class/scsi_generic/sg*/device/vendor`);
my $nvsmi_qx_output = '';
if ($nvsmi and -x $nvsmi and -e '/dev/nvidiactl') {
my $cmd = "$nvsmi -q -x";
if (-e '/dev/nvidiactl' and !-w '/dev/nvidiactl') {
if (sudo_available(
'NVidia GPU temperature check with /dev/nvidiactl not being writable for xymon')) {
$cmd = "$sudo $cmd";
}
}
$nvsmi_qx_output = `$cmd 2>&1`;
}
# Exit if nothing to check is found
exit 0 unless (@zones or
@coretemp or
(@harddisks and $hddtemp and -x $hddtemp) or
(@areca_raids and $smartctl and -x $smartctl) or
$nvsmi_qx_output);
$bb->add_color ('clear');
# Old style zones
if (@zones) {
$bb->add_color ('green');
foreach my $zone (@zones) {
my $temp = read_one_chomped_line_from_file($zone) / 1000.0;
$zone =~ m!.*/(.+)/!;
my $name = $1;
$bb->color_line(color_by_temp_and_device($temp, 'cpu'),
sprintf("%s: %.1f °C\n", $name, $temp));
$trends->print ("[$bb->{test},$name.rrd]\n");
$trends->sprintf ("DS:temp:GAUGE:600:U:U %f\n", $temp);
}
}
# New style zones
if (@coretemp) {
$bb->add_color ('green');
foreach my $zone (@coretemp) {
my $name_file = $zone; $name_file =~ s/input/label/;
my $min_file = $zone; $min_file =~ s/input/min/;
my $mid_file = $zone; $mid_file =~ s/input/mid/;
my $max_file = $zone; $max_file =~ s/input/max/;
my $crit_file = $zone; $crit_file =~ s/input/crit/;
my $temp = read_one_chomped_line_from_file($zone);
next unless defined($temp);
$temp /= 1000.0;
my ($red, $yellow);
if (-r $crit_file and -r $max_file) {
$red = read_one_chomped_line_from_file($crit_file);
$yellow = read_one_chomped_line_from_file($max_file);
} elsif (-r $max_file and -r $mid_file) {
$red = read_one_chomped_line_from_file($max_file);
$yellow = read_one_chomped_line_from_file($mid_file);
} elsif (-r $max_file and -r $min_file) {
$red = read_one_chomped_line_from_file($max_file);
$yellow = read_one_chomped_line_from_file($min_file);
} elsif (-r $max_file) {
$red = $yellow = read_one_chomped_line_from_file($max_file);
} elsif (-r $crit_file) {
$red = $yellow = read_one_chomped_line_from_file($crit_file);
}
$red /= 1000.0 if defined($red);
$yellow /= 1000.0 if defined($yellow);
my $color;
my $name = $zone;
my $device = 'cpu';
if (-r $name_file) {
$name = read_one_chomped_line_from_file($name_file);
if ($name =~ /DIMM/) {
$device = 'ram';
}
}
$color =
color_calc_with_device_fallback($temp, $yellow, $red, $device);
if ($zone ne $name) {
$bb->color_line($color,
sprintf("%s: %.1f °C (%s)\n",
$name, $temp, $zone));
} else {
$bb->color_line($color,
sprintf("%s: %.1f °C\n",
$zone, $temp));
}
$zone =~ s:^/sys/::;
$zone =~ s/\W/_/g;
$trends->print ("[$bb->{test},$zone.rrd]\n");
$trends->sprintf ("DS:temp:GAUGE:600:U:U %f\n", $temp);
}
}
# Harddisks via hddtemp
if (@harddisks and $hddtemp and -x $hddtemp) {
# We don't know limits for/from hddtemp
$bb->add_color ('green');
my %disk;
# Check if can use TCP or if we need to use sudo
my $hddtemp_process = `pidof hddtemp`; chomp($hddtemp_process);
my @hddtemp_opts =
split("\000",
read_one_chomped_line_from_file("/proc/$hddtemp_process/cmdline"));
my ($daemon, $ip, $port) = (undef, '127.0.0.1', '7634');
for (my $i = 0; $i <= $#hddtemp_opts; $i++) {
if ($hddtemp_opts[$i] eq '-d') {
$daemon = 1;
} elsif ($hddtemp_opts[$i] eq '-l') {
$ip = $hddtemp_opts[++$i];
} elsif ($hddtemp_opts[$i] eq '-p') {
$port = $hddtemp_opts[++$i];
}
}
# The easiest and preferred way is to poll the daemon via TCP
if ($daemon) {
use IO::Socket::INET;
my $sock = IO::Socket::INET->new(PeerAddr => $ip,
PeerPort => $port,
Proto => 'tcp');
croak "Can't connect to hddtemp ($ip, $port)"
unless $sock && $sock->connected;
while (<$sock>) {
my @data = split(/\|/);
while (my @per_disk = splice(@data, 0, 5)) {
my $data = $disk{$per_disk[1]} = {};
$data->{type} = $per_disk[2];
$data->{temp} = $per_disk[3];
$data->{unit} = $per_disk[4];
}
}
$sock->close();
} elsif (sudo_available('hddtemp check without running hddtemp daemon')) {
my $cmd = "$sudo $hddtemp ".join(' ', @harddisks).' 2>&1';
open(my $hddtemp_fd, '-|', $cmd)
or croak "Can't call '$cmd': $!";
while (<$hddtemp_fd>) {
chomp;
next unless $_;
my @data = split(/: |\xb0\xc2|\xb0/);
next if $data[0] eq 'WARNING';
my $data = $disk{$data[0]} = {};
$data->{type} = $data[1];
if ($data[2] !~ /^\d/) {
$data->{warning} = $data[2];
$data->{unit} = '';
} else {
$data->{temp} = $data[2];
$data->{unit} = $data[3];
}
}
}
foreach my $dev (sort keys %disk) {
my $data = $disk{$dev};
my $shortdev = $dev; $shortdev =~ s:/dev/::;
if (exists $data->{warning}) {
my $warning = $data->{warning};
$bb->color_line('clear',
sprintf("%s: %s (%s)\n",
$dev,
$data->{warning},
$data->{type}));
} else {
$data->{temp} =~ s/[^0-9.]//g; # Strip anything not belonging to a number
if ($data->{unit} =~ /^[FC]$/) {
$data->{unit} = '°'.$data->{unit};
}
$bb->color_line(color_by_temp_and_device($data->{temp}, 'disk'),
sprintf("%s: %.1f %s (%s)\n",
$dev,
$data->{temp},
$data->{unit},
$data->{type}));
$trends->print ("[$bb->{test},$shortdev.rrd]\n");
$trends->sprintf ("DS:temp:GAUGE:600:U:U %f\n", $data->{temp});
}
}
}
# Disks behind Areca RAID Controllers
if (@areca_raids and $smartctl and -x $smartctl and
sudo_available('Areca RAID disks temperature check with smartctl')) {
chomp(@areca_raids);
foreach my $areca (@areca_raids) {
$areca =~ s:/vendor$::;
next if read_one_chomped_line_from_file("$areca/model")
!~ /RAID controller/i;
$areca =~ s:/sys/class/scsi_generic/(sg\d+)/device:/dev/$1:;
my $firmware_issues;
foreach my $disk (1..24) {
# First capture all output
my @smartctl_output =
`sudo smartctl -A -d areca,$disk $areca`;
chomp(@smartctl_output);
# Check for "outdated firmware" messages
my @firmware_issue = grep { /firmware/i } @smartctl_output;
if (@firmware_issue) {
$firmware_issues = join(" ",@firmware_issue);
}
# Skip the remaining logic if no device was found
next if grep { /No such device/i } @smartctl_output;
# Pick out the temperature line
my @smartctl_temp =
grep { /Temperature_Celsius/ } @smartctl_output;
next unless @smartctl_temp;
# Warn if we found more than one line (unexpected, unhandled so far)
carp "Multiple temperature lines in smartctl output for disk $disk, $areca"
if $#smartctl_temp > 0;
my $smartctl_temp = join(" ", @smartctl_temp);
# Try to parse that line
$smartctl_temp =~
s/^\d+\s+(Temperature.Celsius)[\s0-9x]*Old_age\s+Always\s+-\s+((\d+)(\s+.Min\/Max\s+(\d+)\/(\d+).)?)\s*$/$1 $2/;
my $temp = $3;
# Bail out if we can't parse it.
if (!defined($3)) {
carp "Don't know how to parse Areca smartctl output: '$smartctl_temp'";
next;
}
# We've found some temperature
$bb->color_line(color_by_temp_and_device($temp, 'disk'),
"Areca RAID Controller $areca, Disk $disk: $smartctl_temp\n");
my $shortareca = $areca; $shortareca =~ s:^/dev/::;
$trends->print ("[$bb->{test},areca_${shortareca}_disk${disk}.rrd]\n");
$trends->sprintf ("DS:temp:GAUGE:600:U:U %f\n", $temp);
}
if ($firmware_issues) {
$bb->color_line('clear',
"Areca RAID Controller $areca: $firmware_issues\n");
}
}
}
# NVidia GPUs
if ($nvsmi_qx_output) {
my %gpu;
# Extracting data from XML needs XML::Twig
if (can_load( modules => { 'XML::Twig' => 0 })) {
my $t = XML::Twig->new();
my $twig_object = $t->safe_parse($nvsmi_qx_output);
# safe_parse returns 0 on parse error and sets $@.
if (!$twig_object) {
# Remove unnecessary contents from error message
$@ =~ s/^\n+//s;
$@ =~ s:\n at \S+/temp line \d+\.\n*$::s;
$bb->color_line('clear',
"An error happened while parsing $nvsmi output: $@\n\n".
"Full output:\n\n$nvsmi_qx_output");
} else {
foreach my $gpu ($t->root->children('gpu')) {
my $id = $gpu->id;
$gpu{$id} = {};
my $temp = $gpu->first_child('temperature');
foreach my $gpu_temp ($temp->children()) {
$gpu{$id}{$gpu_temp->name} = $gpu_temp->text_only;
}
}
foreach my $gpu_id (sort keys %gpu) {
my $gpu = $gpu{$gpu_id};
my $temp = '';
my $color = 'clear';
my $gpu_temp = value_if_key_exists_defined_not_na($gpu, 'gpu_temp');
if ($gpu_temp) {
$bb->add_color ('green');
my ($temp, $unit) = split(/\s+/, $gpu_temp);
# gpu_temp_slow_threshold and gpu_temp_max_threshold
# are untested as I've only access to machines which
# return the value "N/A" for these fields. -- Axel
my ($red, $yellow);
$yellow =
value_if_key_exists_defined_not_na($gpu, 'gpu_temp_slow_threshold');
$red =
value_if_key_exists_defined_not_na($gpu, 'gpu_temp_max_threshold');
$color =
color_calc_with_device_fallback($temp, $yellow, $red, 'gpu');
$bb->color_line($color,
sprintf("NVidia GPU %s: %.1f °%s\n",
$gpu_id, $temp, $unit));
$trends->print ("[$bb->{test},GPU_$gpu_id.rrd]\n");
$trends->sprintf ("DS:temp:GAUGE:600:U:U %f\n", $temp);
}
}
}
} else {
# XML::Twig is not installed
$bb->color_line('yellow',
'There is an NVidia card in the machine and '.
'nvidia-smi is installed, but to parse its output '.
"libxml-twig-perl is also required.\n");
}
}
$bb->send;
$trends->send;
####################
# Helper Functions #
####################
sub read_one_chomped_line_from_file {
my $file = shift;
open(my $F, '<', $file) or carp "Couldn't open $file: $!";
my $line = <$F>;
close $F;
chomp $line if defined($line);
return $line;
}
sub color_calc {
my ($temp, $yellow, $red) = @_;
my $color =
$temp >= $red ? 'red' :
$temp >= $yellow ? 'yellow' :
'green';
return $color;
}
sub color_by_temp_and_device {
my ($temp, $device) = @_;
return color_calc($temp, $yellow{$device}, $red{$device});
}
sub color_calc_with_device_fallback {
my ($temp, $yellow, $red, $device) = @_;
$red = $red{$device} unless defined $red;
$yellow = $yellow{$device} unless defined $yellow;
return color_calc($temp, $yellow, $red);
}
sub value_if_key_exists_defined_not_na {
my ($hashref, $key) = @_;
if (exists $hashref->{$key} and
defined($hashref->{$key}) and
$hashref->{$key} ne 'N/A') {
return $hashref->{$key};
} else {
return undef;
}
}
sub sudo_available {
my $test = shift;
if (-x $sudo) {
return 1;
} else {
$bb->color_line('yellow',
"The $test requires sudo to be installed. ".
"The approriate configuration is part of the ".
"hobbit-plugins package and at /etc/sudoers.d/xymon.");
return 0;
}
}
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