mirror of
https://github.com/librenms/librenms.git
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86 lines
3.6 KiB
PHP
86 lines
3.6 KiB
PHP
<?php
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/*
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* LibreNMS module to capture statistics from the AT-NTP-MIB
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*
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* Copyright (c) 2018 Matt Read <matt.read@alliedtelesis.co.nz>
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version. Please see LICENSE.txt at the top level of
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* the source code distribution for details.
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*/
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use LibreNMS\RRD\RrdDefinition;
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$tmp_module = 'ntp';
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$component = new LibreNMS\Component();
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$options = [];
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$options['filter']['type'] = ['=', $tmp_module];
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$options['filter']['disabled'] = ['=', 0];
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$options['filter']['ignore'] = ['=', 0];
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$components = $component->getComponents($device['device_id'], $options);
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// We only care about our device id.
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$components = $components[$device['device_id']];
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// Only collect SNMP data if we have enabled components
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if (count($components > 0)) {
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// Let's gather the stats..
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$atNtpAssociationEntry = snmpwalk_group($device, 'atNtpAssociationEntry', 'AT-NTP-MIB');
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// Loop through the components and extract the data.
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foreach ($components as $key => &$array) {
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$peer = $array['peer'];
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// Let's make sure the rrd is setup for this class.
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$rrd_name = ['ntp', $peer];
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$rrd_def = RrdDefinition::make()
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->addDataset('stratum', 'GAUGE', 0, 16)
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->addDataset('offset', 'GAUGE', -1000)
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->addDataset('delay', 'GAUGE', -1000)
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->addDataset('dispersion', 'GAUGE', -1000);
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$array['stratum'] = $atNtpAssociationEntry[$array['UID']]['atNtpAssociationStratum'];
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// Set the status, 16 = Bad
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if ($array['stratum'] == 16) {
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$array['status'] = 2;
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$array['error'] = 'NTP is not in sync';
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} else {
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$array['status'] = 0;
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$array['error'] = '';
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}
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// Extract the statistics and update rrd
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$rrd['stratum'] = $array['stratum'];
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$rrd['offset'] = $atNtpAssociationEntry[$array['UID']]['atNtpAssociationOffset'];
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$rrd['offset'] = str_replace(' milliseconds', '', $rrd['offset']);
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$rrd['offset'] = $rrd['offset'] / 1000; // Convert to seconds
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$rrd['delay'] = $atNtpAssociationEntry[$array['UID']]['atNtpAssociationDelay'];
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$rrd['delay'] = str_replace(' milliseconds', '', $rrd['delay']);
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$rrd['delay'] = $rrd['delay'] / 1000; // Convert to seconds
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$rrd['dispersion'] = $atNtpAssociationEntry[$array['UID']]['atNtpAssociationDisp'];
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$tags = compact('ntp', 'rrd_name', 'rrd_def', 'peer');
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data_update($device, 'ntp', $tags, $rrd);
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// Let's print some debugging info.
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d_echo("\n\nComponent: " . $key . "\n");
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d_echo(' Index: ' . $array['UID'] . "\n");
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d_echo(' Peer: ' . $array['peer'] . ':' . $array['port'] . "\n");
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d_echo(' Stratum: atNtpAssociationStratum.' . $array['UID'] . ' = ' . $rrd['stratum'] . "\n");
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d_echo(' Offset: atNtpAssociationOffset.' . $array['UID'] . ' = ' . $rrd['offset'] . "\n");
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d_echo(' Delay: atNtpAssociationDelay.' . $array['UID'] . ' = ' . $rrd['delay'] . "\n");
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d_echo(' Dispersion: atNtpAssociationDisp.' . $array['UID'] . ' = ' . $rrd['dispersion'] . "\n");
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// Clean-up after yourself!
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unset($filename, $rrd_filename, $rrd);
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} // End foreach components
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// Write the Components back to the DB.
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$component->setComponentPrefs($device['device_id'], $components);
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} // end if count components
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// Clean-up after yourself!
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unset($type, $components, $component, $options, $tmp_module);
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