131 lines
4.9 KiB
PHP
131 lines
4.9 KiB
PHP
<?php
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/*
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* LibreNMS module to capture statistics from the CISCO-NTP-MIB
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*
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* Copyright (c) 2016 Aaron Daniels <aaron@daniels.id.au>
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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\Util\IP;
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$module = 'ntp';
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$component = new LibreNMS\Component();
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$components = $component->getComponents($device['device_id'], array('type'=>$module));
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// We only care about our device id.
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$components = $components[$device['device_id']];
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// Begin our master array, all other values will be processed into this array.
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$tblComponents = array();
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// Let's gather some data..
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// For Reference:
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// http://www.oidview.com/mibs/9/CISCO-NTP-MIB.html
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// http://www.cisco.com/c/en/us/support/docs/availability/high-availability/19643-ntpm.html
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$cntpPeersVarEntry = snmpwalk_array_num($device, '.1.3.6.1.4.1.9.9.168.1.2.1.1', 2);
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/*
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* False == no object found - this is not an error, no objects exist
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* null == timeout or something else that caused an error, there may be objects but we couldn't get it.
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*/
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if (is_null($cntpPeersVarEntry)) {
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// We have to error here or we will end up deleting all our components.
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echo "Error\n";
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} else {
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// No Error, lets process things.
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d_echo("Objects Found:\n");
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// Let's grab the index for each NTP peer
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foreach ((array)$cntpPeersVarEntry['1.3.6.1.4.1.9.9.168.1.2.1.1'][2] as $index => $value) {
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$result = array();
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$result['UID'] = (string)$index; // This is cast as a string so it can be compared with the database value.
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$result['peer'] = $cntpPeersVarEntry['1.3.6.1.4.1.9.9.168.1.2.1.1'][3][$index];
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$result['port'] = $cntpPeersVarEntry['1.3.6.1.4.1.9.9.168.1.2.1.1'][4][$index];
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$result['stratum'] = $cntpPeersVarEntry['1.3.6.1.4.1.9.9.168.1.2.1.1'][9][$index];
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$result['peerref'] = IP::fromHexString($cntpPeersVarEntry['1.3.6.1.4.1.9.9.168.1.2.1.1'][15][$index], true);
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$result['label'] = $result['peer'].":".$result['port'];
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// Set the status, 16 = Bad
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if ($result['stratum'] == 16) {
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$result['status'] = 2;
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$result['error'] = 'NTP is not in sync';
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} else {
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$result['status'] = 0;
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$result['error'] = '';
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}
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d_echo("NTP Peer found: ");
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d_echo($result);
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$tblComponents[] = $result;
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}
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/*
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* Ok, we have our 2 array's (Components and SNMP) now we need
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* to compare and see what needs to be added/updated.
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*
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* Let's loop over the SNMP data to see if we need to ADD or UPDATE any components.
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*/
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foreach ($tblComponents as $key => $array) {
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$component_key = false;
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// Loop over our components to determine if the component exists, or we need to add it.
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foreach ($components as $compid => $child) {
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if ($child['UID'] === $array['UID']) {
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$component_key = $compid;
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}
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}
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if (!$component_key) {
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// The component doesn't exist, we need to ADD it - ADD.
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$new_component = $component->createComponent($device['device_id'], $module);
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$component_key = key($new_component);
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$components[$component_key] = array_merge($new_component[$component_key], $array);
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echo "+";
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} else {
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// The component does exist, merge the details in - UPDATE.
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$components[$component_key] = array_merge($components[$component_key], $array);
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echo ".";
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}
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}
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/*
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* Loop over the Component data to see if we need to DELETE any components.
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*/
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foreach ((array)$components as $key => $array) {
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// Guilty until proven innocent
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$found = false;
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foreach ($tblComponents as $k => $v) {
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if ($array['UID'] == $v['UID']) {
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// Yay, we found it...
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$found = true;
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}
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}
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if ($found === false) {
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// The component has not been found. we should delete it.
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echo "-";
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$component->deleteComponent($key);
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}
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}
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// Write the Components back to the DB.
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$component->setComponentPrefs($device['device_id'], $components);
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echo "\n";
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} // End if not error
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$module = strtolower($module);
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if (!empty($components)) {
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if (dbFetchCell('SELECT COUNT(*) FROM `applications` WHERE `device_id` = ? AND `app_type` = ?', array($device['device_id'], $module)) == '0') {
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dbInsert(array('device_id' => $device['device_id'], 'app_type' => $module, 'app_status' => '', 'app_instance' => ''), 'applications');
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}
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} else {
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dbDelete('applications', '`device_id` = ? AND `app_type` = ?', array($device['device_id'], $module));
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}
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