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includes/discovery/processors.inc.php
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168
includes/discovery/processors.inc.php
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<?php
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/**
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* Observium
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*
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* This file is part of Observium.
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*
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* @package observium
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* @subpackage discovery
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* @copyright (C) 2006-2013 Adam Armstrong, (C) 2013-2021 Observium Limited
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*
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*/
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// Include all discovery modules by supported MIB
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$include_dir = "includes/discovery/processors";
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include("includes/include-dir-mib.inc.php");
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// Detect processors by simple MIB-based discovery :
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// FIXME - this should also be extended to understand multiple entries in a table, and take descr from an OID but this is all I need right now :)
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foreach (get_device_mibs_permitted($device) as $mib)
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{
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if (is_array($config['mibs'][$mib]['processor']))
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{
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print_cli_data_field("$mib");
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foreach ($config['mibs'][$mib]['processor'] as $entry_name => $entry)
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{
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$entry['found'] = FALSE;
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// Check duplicate processors by $valid['processor'] array
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if (discovery_check_if_type_exist($entry, 'processor')) { continue 2; }
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// Precision (scale)
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$precision = 1;
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if (isset($entry['scale']) && is_numeric($entry['scale']) && $entry['scale'] != 1)
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{
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// FIXME, currently we support only int precision, need convert all to float scale!
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$precision = round(1 / $entry['scale'], 0);
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}
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if ($entry['type'] == 'table')
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{
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// Use the type as the table if no table is set.
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if(!isset($entry['table'])) { $entry['table'] = $entry_name; }
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$processors_array = snmpwalk_cache_oid($device, $entry['table'], array(), $mib, NULL, OBS_SNMP_ALL_NUMERIC_INDEX);
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if ($entry['table_descr'])
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{
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// If descr in separate table with same indexes
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$processors_array = snmpwalk_cache_oid($device, $entry['table_descr'], $processors_array, $mib, NULL, OBS_SNMP_ALL_NUMERIC_INDEX);
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}
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if (empty($entry['oid_num']))
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{
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// Use snmptranslate if oid_num not set
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$entry['oid_num'] = snmp_translate($entry['oid'], $mib);
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}
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$i = 1; // Used in descr as $i++
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$processors_count = count($processors_array);
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foreach ($processors_array as $index => $processor)
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{
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$dot_index = '.' . $index;
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$oid_num = $entry['oid_num'] . $dot_index;
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// Rewrite specific keys
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$replace_array = array(
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'index' => $index, // Index in descr
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'i' => $i, // i++ counter in descr
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);
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$descr = entity_descr_definition('processor', $entry, array_merge($replace_array, $processor), $processors_count);
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$idle = (isset($entry['idle']) && $entry['idle'] ? 1 : 0);
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$usage = snmp_fix_numeric($processor[$entry['oid']]);
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if (is_numeric($usage))
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{
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if (isset($entry['rename_rrd']))
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{
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$old_rrd = 'processor-'.$entry['rename_rrd'].'-'.$index;
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$new_rrd = 'processor-'.$entry_name.'-'.$entry['table'] . $dot_index;
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rename_rrd($device, $old_rrd, $new_rrd);
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unset($old_rrd, $new_rrd);
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}
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discover_processor($valid['processor'], $device, $oid_num, $entry['oid'] . $dot_index, $entry_name, $descr, $precision, $usage, NULL, NULL, $idle);
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$entry['found'] = TRUE;
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}
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$i++;
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}
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} else {
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// Static processor
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$index = 0; // FIXME. Need use same indexes style as in sensors
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// Fetch description from oid if specified
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$replace_array = array('index' => $index);
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if (isset($entry['oid_descr']))
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{
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$replace_array[$entry['oid_descr']] = snmp_get_oid($device, $entry['oid_descr'], $mib);
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}
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$descr = entity_descr_definition('processor', $entry, $replace_array);
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if (isset($entry['oid_count']) && $entry['oid_count'])
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{
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// Get processors count if exist for MIB
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$processor_count = snmp_get_oid($device, $entry['oid_count'], $mib);
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if ($processor_count > 1)
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{
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$descr .= ' x'.$processor_count;
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}
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}
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if (empty($entry['oid_num']))
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{
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// Use snmptranslate if oid_num not set
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$entry['oid_num'] = snmp_translate($entry['oid'], $mib);
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}
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// Idle
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$idle = (isset($entry['idle']) && $entry['idle'] ? 1 : 0);
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$usage = snmp_fix_numeric(snmp_get_oid($device, $entry['oid'], $mib));
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// If we have valid usage, discover the processor
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if (is_numeric($usage) && $usage != '4294967295')
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{
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// Rename RRD if requested
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if (isset($entry['rename_rrd']))
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{
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$old_rrd = 'processor-'.$entry['rename_rrd'];
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$new_rrd = 'processor-'.$entry_name.'-'.$index;
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rename_rrd($device, $old_rrd, $new_rrd);
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unset($old_rrd, $new_rrd);
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}
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discover_processor($valid['processor'], $device, $entry['oid_num'], $index, $entry_name, $descr, $precision, $usage, NULL, NULL, $idle);
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$entry['found'] = TRUE;
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}
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}
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unset($processors_array, $processor, $dot_index, $descr, $i); // Clean up
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if (isset($entry['stop_if_found']) && $entry['stop_if_found'] && $entry['found']) { break; } // Stop loop if processor found
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}
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print_cli(PHP_EOL); // Close MIB entry line.
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}
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}
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// Remove processors which weren't redetected here
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foreach (dbFetchRows('SELECT * FROM `processors` WHERE `device_id` = ?', array($device['device_id'])) as $test_processor)
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{
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$processor_index = $test_processor['processor_index'];
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$processor_type = $test_processor['processor_type'];
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$processor_descr = $test_processor['processor_descr'];
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print_debug($processor_index . " -> " . $processor_type);
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if (!$valid['processor'][$processor_type][$processor_index])
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{
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$GLOBALS['module_stats'][$module]['deleted']++; //echo('-');
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dbDelete('processors', '`processor_id` = ?', array($test_processor['processor_id']));
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log_event("Processor removed: type ".$processor_type." index ".$processor_index." descr ". $processor_descr, $device, 'processor', $test_processor['processor_id']);
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}
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unset($processor_oid); unset($processor_type);
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}
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$GLOBALS['module_stats'][$module]['status'] = safe_count($valid['processor']);
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if (OBS_DEBUG && $GLOBALS['module_stats'][$module]['status'])
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{
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print_vars($valid['processor']);
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}
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// EOF
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