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a0587154c4
* Sensors move can skip and output into singleton * style * rrd_type --------- Co-authored-by: PipoCanaja <38363551+PipoCanaja@users.noreply.github.com>
1163 lines
42 KiB
PHP
1163 lines
42 KiB
PHP
<?php
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/*
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* LibreNMS Network Management and Monitoring System
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* Copyright (C) 2006-2011, Observium Developers - http://www.observium.org
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* See COPYING for more details.
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*/
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use App\Actions\Device\ValidateDeviceAndCreate;
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use App\Models\Device;
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use App\Models\Eventlog;
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use App\Models\Ipv4Address;
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use App\Models\Ipv4Network;
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use App\Models\Ipv6Address;
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use App\Models\Ipv6Network;
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use App\Models\Port;
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use Illuminate\Support\Str;
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use LibreNMS\Config;
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use LibreNMS\Device\YamlDiscovery;
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use LibreNMS\Enum\Severity;
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use LibreNMS\Exceptions\HostExistsException;
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use LibreNMS\Exceptions\InvalidIpException;
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use LibreNMS\OS;
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use LibreNMS\Util\IP;
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use LibreNMS\Util\IPv4;
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use LibreNMS\Util\IPv6;
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use LibreNMS\Util\UserFuncHelper;
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/**
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* @param string $hostname
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* @param array $device
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* @param string $method name of process discoverying this device
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* @param array|null $interface Interface this device was discovered on
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* @return false|int
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*
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* @throws InvalidIpException
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*/
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function discover_new_device($hostname, $device, $method, $interface = null)
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{
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d_echo("discovering $hostname\n");
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if (IP::isValid($hostname)) {
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$ip = $hostname;
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if (! Config::get('discovery_by_ip', false)) {
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d_echo('Discovery by IP disabled, skipping ' . $hostname);
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log_event("$method discovery of " . $hostname . ' failed - Discovery by IP disabled', $device['device_id'], 'discovery', 4);
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return false;
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}
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} elseif (\LibreNMS\Util\Validate::hostname($hostname)) {
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if ($mydomain = Config::get('mydomain')) {
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$full_host = rtrim($hostname, '.') . '.' . $mydomain;
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if (isDomainResolves($full_host)) {
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$hostname = $full_host;
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}
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}
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$ip = gethostbyname($hostname);
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if ($ip == $hostname) {
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d_echo("name lookup of $hostname failed\n");
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log_event("$method discovery of " . $hostname . ' failed - Check name lookup', $device['device_id'], 'discovery', 5);
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return false;
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}
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} else {
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d_echo("Discovery failed: '$hostname' is not a valid ip or dns name\n");
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return false;
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}
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d_echo("ip lookup result: $ip\n");
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$hostname = rtrim($hostname, '.'); // remove trailing dot
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$ip = IP::parse($ip, true);
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if ($ip->inNetworks(Config::get('autodiscovery.nets-exclude'))) {
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d_echo("$ip in an excluded network - skipping\n");
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return false;
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}
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if (! $ip->inNetworks(Config::get('nets'))) {
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d_echo("$ip not in a matched network - skipping\n");
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return false;
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}
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try {
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$remote_device = new Device([
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'hostname' => $hostname,
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'poller_group' => $device['poller_group'],
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]);
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$result = (new ValidateDeviceAndCreate($remote_device))->execute();
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if ($result) {
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echo '+[' . $remote_device->hostname . '(' . $remote_device->device_id . ')]';
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$extra_log = is_array($interface) ? ' (port ' . cleanPort($interface)['label'] . ') ' : '';
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Eventlog::log('Device ' . $remote_device->hostname . " ($ip) $extra_log autodiscovered through $method on " . $device['hostname'], $device['device_id'], 'discovery', Severity::Ok);
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return $remote_device->device_id;
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}
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Eventlog::log("$method discovery of " . $remote_device->hostname . " ($ip) failed - Check ping and SNMP access", $device['device_id'], 'discovery', Severity::Error);
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} catch (HostExistsException $e) {
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// already have this device
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} catch (Exception $e) {
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Eventlog::log("$method discovery of " . $hostname . " ($ip) failed - " . $e->getMessage(), $device['device_id'], 'discovery', Severity::Error);
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}
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return false;
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}
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//end discover_new_device()
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/**
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* @param array $device The device to poll
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* @param bool $force_module Ignore device module overrides
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* @return bool if the device was discovered or skipped
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*/
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function discover_device(&$device, $force_module = false)
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{
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if ($device['snmp_disable'] == '1') {
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return true;
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}
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global $valid;
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$valid = [];
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// Start counting device poll time
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echo $device['hostname'] . ' ' . $device['device_id'] . ' ' . $device['os'] . ' ';
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$helper = new \LibreNMS\Polling\ConnectivityHelper(DeviceCache::getPrimary());
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if (! $helper->isUp()) {
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return false;
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}
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$discovery_modules = ['core' => true] + Config::get('discovery_modules', []);
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/** @var \App\Polling\Measure\MeasurementManager $measurements */
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$measurements = app(\App\Polling\Measure\MeasurementManager::class);
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$measurements->checkpoint(); // don't count previous stats
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foreach ($discovery_modules as $module => $module_status) {
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$os_module_status = Config::getOsSetting($device['os'], "discovery_modules.$module");
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$device_module_status = DeviceCache::getPrimary()->getAttrib('discover_' . $module);
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d_echo('Modules status: Global' . (isset($module_status) ? ($module_status ? '+ ' : '- ') : ' '));
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d_echo('OS' . (isset($os_module_status) ? ($os_module_status ? '+ ' : '- ') : ' '));
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d_echo('Device' . ($device_module_status !== null ? ($device_module_status ? '+ ' : '- ') : ' '));
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if ($force_module === true ||
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$device_module_status ||
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($os_module_status && $device_module_status === null) ||
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($module_status && ! isset($os_module_status) && $device_module_status === null)
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) {
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$module_start = microtime(true);
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$start_memory = memory_get_usage();
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echo "\n#### Load disco module $module ####\n";
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try {
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include "includes/discovery/$module.inc.php";
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} catch (Throwable $e) {
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// isolate module exceptions so they don't disrupt the polling process
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Log::error("%rError discovering $module module for {$device['hostname']}.%n $e", ['color' => true]);
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Eventlog::log("Error discovering $module module. Check log file for more details.", $device['device_id'], 'discovery', Severity::Error);
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report($e);
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// Re-throw exception if we're in CI
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if (getenv('CI') == true) {
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throw $e;
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}
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}
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$module_time = microtime(true) - $module_start;
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$module_time = substr($module_time, 0, 5);
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$module_mem = (memory_get_usage() - $start_memory);
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printf("\n>> Runtime for discovery module '%s': %.4f seconds with %s bytes\n", $module, $module_time, $module_mem);
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$measurements->printChangedStats();
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echo "#### Unload disco module $module ####\n\n";
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} elseif ($device_module_status == '0') {
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echo "Module [ $module ] disabled on host.\n\n";
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} elseif (isset($os_module_status) && $os_module_status == '0') {
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echo "Module [ $module ] disabled on os.\n\n";
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} else {
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echo "Module [ $module ] disabled globally.\n\n";
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}
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}
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return true;
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}
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//end discover_device()
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// Discover sensors
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function discover_sensor($unused, $class, $device, $oid, $index, $type, $descr, $divisor = 1, $multiplier = 1, $low_limit = null, $low_warn_limit = null, $warn_limit = null, $high_limit = null, $current = null, $poller_type = 'snmp', $entPhysicalIndex = null, $entPhysicalIndex_measured = null, $user_func = null, $group = null, $rrd_type = 'GAUGE'): bool
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{
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$low_limit = set_null($low_limit);
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$low_warn_limit = set_null($low_warn_limit);
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$warn_limit = set_null($warn_limit);
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$high_limit = set_null($high_limit);
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$current = cast_number($current);
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if (! is_numeric($divisor)) {
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$divisor = 1;
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}
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app('sensor-discovery')->discover(new \App\Models\Sensor([
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'poller_type' => $poller_type,
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'sensor_class' => $class,
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'device_id' => $device['device_id'],
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'sensor_oid' => $oid,
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'sensor_index' => $index,
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'sensor_type' => $type,
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'sensor_descr' => $descr,
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'sensor_divisor' => $divisor,
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'sensor_multiplier' => $multiplier,
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'sensor_limit' => $high_limit,
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'sensor_limit_warn' => $warn_limit,
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'sensor_limit_low' => $low_limit,
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'sensor_limit_low_warn' => $low_warn_limit,
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'sensor_current' => $current,
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'entPhysicalIndex' => $entPhysicalIndex,
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'entPhysicalIndex_measured' => $entPhysicalIndex_measured,
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'user_func' => $user_func,
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'group' => $group,
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'rrd_type' => $rrd_type,
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]));
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return true;
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}
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function discover_juniAtmVp(&$valid, $device, $port_id, $vp_id, $vp_descr)
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{
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d_echo("Discover Juniper ATM VP: $port_id, $vp_id, $vp_descr\n");
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if (dbFetchCell('SELECT COUNT(*) FROM `juniAtmVp` WHERE `port_id` = ? AND `vp_id` = ?', [$port_id, $vp_id]) == '0') {
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$inserted = dbInsert(['port_id' => $port_id, 'vp_id' => $vp_id, 'vp_descr' => $vp_descr], 'juniAtmVp');
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d_echo("( $inserted inserted )\n");
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// FIXME vv no $device!
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log_event('Juniper ATM VP Added: port ' . $port_id . ' vp ' . $vp_id . ' descr' . $vp_descr, $device, 'juniAtmVp', 3, $inserted);
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} else {
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echo '.';
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}
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$valid[$port_id][$vp_id] = 1;
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}
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//end discover_juniAtmVp()
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function discover_link($local_port_id, $protocol, $remote_port_id, $remote_hostname, $remote_port, $remote_platform, $remote_version, $local_device_id, $remote_device_id)
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{
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global $link_exists;
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d_echo("Discover link: $local_port_id, $protocol, $remote_port_id, $remote_hostname, $remote_port, $remote_platform, $remote_version, $remote_device_id\n");
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if (dbFetchCell(
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'SELECT COUNT(*) FROM `links` WHERE `remote_hostname` = ? AND `local_port_id` = ? AND `protocol` = ? AND `remote_port` = ?',
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[
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$remote_hostname,
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$local_port_id,
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$protocol,
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$remote_port,
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]
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) == '0') {
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$insert_data = [
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'local_port_id' => $local_port_id,
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'local_device_id' => $local_device_id,
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'protocol' => $protocol,
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'remote_hostname' => $remote_hostname,
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'remote_device_id' => (int) $remote_device_id,
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'remote_port' => $remote_port,
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'remote_platform' => $remote_platform,
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'remote_version' => $remote_version,
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];
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if (! empty($remote_port_id)) {
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$insert_data['remote_port_id'] = (int) $remote_port_id;
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}
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$inserted = dbInsert($insert_data, 'links');
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echo '+';
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d_echo("( $inserted inserted )");
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} else {
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$sql = 'SELECT `id`,`local_device_id`,`remote_platform`,`remote_version`,`remote_device_id`,`remote_port_id` FROM `links`';
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$sql .= ' WHERE `remote_hostname` = ? AND `local_port_id` = ? AND `protocol` = ? AND `remote_port` = ?';
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$data = dbFetchRow($sql, [$remote_hostname, $local_port_id, $protocol, $remote_port]);
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$update_data = [
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'local_device_id' => $local_device_id,
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'remote_platform' => $remote_platform,
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'remote_version' => $remote_version,
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'remote_device_id' => (int) $remote_device_id,
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'remote_port_id' => (int) $remote_port_id,
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];
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$id = $data['id'];
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unset($data['id']);
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if ($data == $update_data) {
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echo '.';
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} else {
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$updated = dbUpdate($update_data, 'links', '`id` = ?', [$id]);
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echo 'U';
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d_echo("( $updated updated )");
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}//end if
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}//end if
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$link_exists[$local_port_id][$remote_hostname][$remote_port] = 1;
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}
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//end discover_link()
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function discover_storage(&$valid, $device, $index, $type, $mib, $descr, $size, $units, $used = null)
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{
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if (ignore_storage($device['os'], $descr)) {
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return;
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}
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d_echo("Discover Storage: $index, $type, $mib, $descr, $size, $units, $used\n");
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if ($descr && $size > '0') {
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$storage = dbFetchRow('SELECT * FROM `storage` WHERE `storage_index` = ? AND `device_id` = ? AND `storage_mib` = ?', [$index, $device['device_id'], $mib]);
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if (empty($storage)) {
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if (Config::getOsSetting($device['os'], 'storage_perc_warn')) {
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$perc_warn = Config::getOsSetting($device['os'], 'storage_perc_warn');
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} else {
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$perc_warn = Config::get('storage_perc_warn', 60);
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}
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dbInsert(
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[
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'device_id' => $device['device_id'],
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'storage_descr' => $descr,
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'storage_index' => $index,
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'storage_mib' => $mib,
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'storage_type' => $type,
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'storage_units' => $units,
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'storage_size' => $size,
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'storage_used' => $used,
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'storage_perc_warn' => $perc_warn,
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],
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'storage'
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);
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echo '+';
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} else {
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$updated = dbUpdate(['storage_descr' => $descr, 'storage_type' => $type, 'storage_units' => $units, 'storage_size' => $size], 'storage', '`device_id` = ? AND `storage_index` = ? AND `storage_mib` = ?', [$device['device_id'], $index, $mib]);
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if ($updated) {
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echo 'U';
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} else {
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echo '.';
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}
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}//end if
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$valid[$mib][$index] = 1;
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}//end if
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}
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function discover_process_ipv6(&$valid, $ifIndex, $ipv6_address, $ipv6_prefixlen, $ipv6_origin, $context_name = '')
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{
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global $device;
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if (! IPv6::isValid($ipv6_address, true)) {
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// ignore link-locals (coming from IPV6-MIB)
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return;
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}
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$ipv6 = new IPv6($ipv6_address);
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$ipv6_network = $ipv6->getNetwork($ipv6_prefixlen);
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$ipv6_compressed = $ipv6->compressed();
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$port_id = Port::where([
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['device_id', $device['device_id']],
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['ifIndex', $ifIndex],
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])->value('port_id');
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if ($port_id && $ipv6_prefixlen > '0' && $ipv6_prefixlen < '129' && $ipv6_compressed != '::1') {
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d_echo('IPV6: Found port id: ' . $port_id);
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$ipv6netDB = Ipv6Network::updateOrCreate([
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'ipv6_network' => $ipv6_network,
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], [
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'context_name' => $context_name,
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]);
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if ($ipv6netDB->wasChanged()) {
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d_echo('IPV6: Update DB ipv6_networks');
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}
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$ipv6_network_id = Ipv6Network::where('ipv6_network', $ipv6_network)->where('context_name', $context_name)->value('ipv6_network_id');
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if ($ipv6_network_id) {
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d_echo('IPV6: Found network id: ' . $ipv6_network_id);
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$ipv6adrDB = Ipv6Address::updateOrCreate([
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'ipv6_address' => $ipv6_address,
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'ipv6_prefixlen' => $ipv6_prefixlen,
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'port_id' => $port_id,
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], [
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'ipv6_compressed' => $ipv6_compressed,
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'ipv6_origin' => $ipv6_origin,
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'ipv6_network_id' => $ipv6_network_id,
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'context_name' => $context_name,
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]);
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if ($ipv6adrDB->wasChanged()) {
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d_echo('IPV6: Update DB ipv6_addresses');
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}
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$full_address = "$ipv6_address/$ipv6_prefixlen";
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$valid_address = $full_address . '-' . $port_id;
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$valid['ipv6'][$valid_address] = 1;
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}//endif network_id
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}//endif port_id && others
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}//end discover_process_ipv6()
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/**
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* create or update IPv4 Addresses and/or IPv4 Networks
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*
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* @param pointer $valid_v4
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* @param array $device
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* @param int $ifIndex
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* @param string $ipv4_address
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* @param string $mask
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* @param string $context_name
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* @return array
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*
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* @throws InvalidIpException
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*/
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function discover_process_ipv4(&$valid_v4, $device, int $ifIndex, $ipv4_address, $mask, $context_name = '')
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{
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$cidr = IPv4::netmask2cidr($mask);
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try {
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$ipv4 = new IPv4($ipv4_address . '/' . $cidr);
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} catch (InvalidIpException $e) {
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d_echo('Invalid data: ' . $ipv4_address);
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return;
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}
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$ipv4_network = $ipv4->getNetworkAddress() . '/' . $ipv4->cidr;
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if ($ipv4_address != '0.0.0.0' && $ifIndex > 0) {
|
|
$port_id = get_port_by_index_cache($device['device_id'], $ifIndex)['port_id'];
|
|
|
|
if (is_numeric($port_id)) {
|
|
$dbIpv4Net = Ipv4Network::updateOrCreate([
|
|
'ipv4_network' => $ipv4_network,
|
|
], [
|
|
'context_name' => $device['context_name'],
|
|
]);
|
|
|
|
if (! $dbIpv4Net->wasRecentlyCreated && $dbIpv4Net->wasChanged()) {
|
|
Eventlog::log('IPv4 network ' . $ipv4_network . ' changed', $device['device_id'], 'ipv4', Severity::Warning);
|
|
echo 'Nu';
|
|
}
|
|
if ($dbIpv4Net->wasRecentlyCreated) {
|
|
Eventlog::log('IPv4 network ' . $ipv4_network . ' created', $device['device_id'], 'ipv4', Severity::Notice);
|
|
echo 'N+';
|
|
}
|
|
|
|
$ipv4_network_id = Ipv4Network::where('ipv4_network', $ipv4_network)->value('ipv4_network_id');
|
|
$dbIpv4Addr = Ipv4Address::updateOrCreate([
|
|
'ipv4_address' => $ipv4_address,
|
|
'ipv4_prefixlen' => $cidr,
|
|
'ipv4_network_id' => $ipv4_network_id,
|
|
'port_id' => $port_id,
|
|
], [
|
|
'context_name' => $device['context_name'],
|
|
]);
|
|
|
|
if (! $dbIpv4Addr->wasRecentlyCreated && $dbIpv4Addr->wasChanged()) {
|
|
Eventlog::log('IPv4 address ' . $ipv4_address . '/' . $cidr . ' changed', $device['device_id'], 'ipv4', Severity::Warning);
|
|
echo 'Au';
|
|
}
|
|
if ($dbIpv4Addr->wasRecentlyCreated) {
|
|
Eventlog::log('IPv4 address ' . $ipv4_address . '/' . $cidr . ' created', $device['device_id'], 'ipv4', Severity::Notice);
|
|
echo 'A+';
|
|
}
|
|
$full_address = $ipv4_address . '/' . $cidr . '|' . $ifIndex;
|
|
$valid_v4[$full_address] = 1;
|
|
} else {
|
|
d_echo('No port id found for ifindex: ' . $ifIndex . PHP_EOL);
|
|
}
|
|
}
|
|
}
|
|
/*
|
|
* Check entity sensors to be excluded
|
|
*
|
|
* @param string value to check
|
|
* @param array device
|
|
*
|
|
* @return bool true if sensor is valid
|
|
* false if sensor is invalid
|
|
*/
|
|
function check_entity_sensor($string, $device)
|
|
{
|
|
$fringe = array_merge(Config::get('bad_entity_sensor_regex', []), Config::getOsSetting($device['os'], 'bad_entity_sensor_regex', []));
|
|
|
|
foreach ($fringe as $bad) {
|
|
if (preg_match($bad . 'i', $string)) {
|
|
d_echo("Ignored entity sensor: $bad : $string");
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Get the device divisor, account for device specific quirks
|
|
* The default divisor is 10
|
|
*
|
|
* @param array $device device array
|
|
* @param string $os_version firmware version poweralert quirks
|
|
* @param string $sensor_type the type of this sensor
|
|
* @param string $oid the OID of this sensor
|
|
* @return int
|
|
*/
|
|
function get_device_divisor($device, $os_version, $sensor_type, $oid)
|
|
{
|
|
if ($device['os'] == 'poweralert') {
|
|
if ($sensor_type == 'current' || $sensor_type == 'frequency') {
|
|
if (version_compare($os_version, '12.06.0068', '>=')) {
|
|
return 10;
|
|
} elseif (version_compare($os_version, '12.04.0055', '=')) {
|
|
return 10;
|
|
} elseif (version_compare($os_version, '12.04.0056', '>=')) {
|
|
return 1;
|
|
}
|
|
} elseif ($sensor_type == 'load') {
|
|
if (version_compare($os_version, '12.06.0064', '=')) {
|
|
return 10;
|
|
} else {
|
|
return 1;
|
|
}
|
|
}
|
|
} elseif ($device['os'] == 'huaweiups') {
|
|
if ($sensor_type == 'frequency') {
|
|
if (Str::startsWith($device['hardware'], 'UPS2000')) {
|
|
return 10;
|
|
}
|
|
|
|
return 100;
|
|
}
|
|
} elseif ($device['os'] == 'hpe-rtups') {
|
|
if ($sensor_type == 'voltage' && ! Str::startsWith($oid, '.1.3.6.1.2.1.33.1.2.5.') && ! Str::startsWith($oid, '.1.3.6.1.2.1.33.1.3.3.1.3')) {
|
|
return 1;
|
|
}
|
|
} elseif ($device['os'] == 'apc-mgeups') {
|
|
if ($sensor_type == 'voltage') {
|
|
return 10;
|
|
}
|
|
}
|
|
|
|
// UPS-MIB Defaults
|
|
|
|
if ($sensor_type == 'load') {
|
|
return 1;
|
|
}
|
|
|
|
if ($sensor_type == 'voltage' && ! Str::startsWith($oid, '.1.3.6.1.2.1.33.1.2.5.')) {
|
|
return 1;
|
|
}
|
|
|
|
if ($sensor_type == 'runtime') {
|
|
if (Str::startsWith($oid, '.1.3.6.1.2.1.33.1.2.2.')) {
|
|
return 60;
|
|
}
|
|
|
|
if (Str::startsWith($oid, '.1.3.6.1.2.1.33.1.2.3.')) {
|
|
if ($device['os'] == 'routeros' && $device['version'] && version_compare($device['version'], '6.47', '<')) {
|
|
return 60;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
return 10;
|
|
}
|
|
|
|
/**
|
|
* Should we ignore this storage device based on teh description? (usually the mount path or drive)
|
|
*
|
|
* @param string $os The OS of the device
|
|
* @param string $descr The description of the storage
|
|
* @return bool
|
|
*/
|
|
function ignore_storage($os, $descr)
|
|
{
|
|
foreach (Config::getCombined($os, 'ignore_mount') as $im) {
|
|
if ($im == $descr) {
|
|
d_echo("ignored $descr (matched: $im)\n");
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
foreach (Config::getCombined($os, 'ignore_mount_string') as $ims) {
|
|
if (Str::contains($descr, $ims)) {
|
|
d_echo("ignored $descr (matched: $ims)\n");
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
foreach (Config::getCombined($os, 'ignore_mount_regexp') as $imr) {
|
|
if (preg_match($imr, $descr)) {
|
|
d_echo("ignored $descr (matched: $imr)\n");
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @param OS $os
|
|
* @param $sensor_type
|
|
* @param $pre_cache
|
|
*/
|
|
function discovery_process($os, $sensor_class, $pre_cache)
|
|
{
|
|
$discovery = $os->getDiscovery('sensors');
|
|
$device = $os->getDeviceArray();
|
|
|
|
if (! empty($discovery[$sensor_class]) && ! app('sensor-discovery')->canSkip(new \App\Models\Sensor(['sensor_class' => $sensor_class]))) {
|
|
$sensor_options = [];
|
|
if (isset($discovery[$sensor_class]['options'])) {
|
|
$sensor_options = $discovery[$sensor_class]['options'];
|
|
}
|
|
|
|
d_echo("Dynamic Discovery ($sensor_class): ");
|
|
d_echo($discovery[$sensor_class]);
|
|
|
|
foreach ($discovery[$sensor_class]['data'] as $data) {
|
|
$tmp_name = $data['oid'];
|
|
|
|
if (! isset($pre_cache[$tmp_name])) {
|
|
continue;
|
|
}
|
|
|
|
$raw_data = (array) $pre_cache[$tmp_name];
|
|
|
|
d_echo("Data $tmp_name: ");
|
|
d_echo($raw_data);
|
|
$count = 0;
|
|
|
|
foreach ($raw_data as $index => $snmp_data) {
|
|
$count++;
|
|
$user_function = null;
|
|
if (isset($data['user_func'])) {
|
|
$user_function = $data['user_func'];
|
|
}
|
|
// get the value for this sensor, check 'value' and 'oid', if state string, translate to a number
|
|
$data['value'] = isset($data['value']) ? $data['value'] : $data['oid']; // fallback to oid if value is not set
|
|
|
|
$snmp_value = $snmp_data[$data['value']] ?? '';
|
|
if (! is_numeric($snmp_value)) {
|
|
if ($sensor_class === 'temperature') {
|
|
// For temp sensors, try and detect fahrenheit values
|
|
if (is_string($snmp_value) && Str::endsWith($snmp_value, ['f', 'F'])) {
|
|
$user_function = 'fahrenheit_to_celsius';
|
|
}
|
|
}
|
|
preg_match('/-?\d*\.?\d+/', $snmp_value, $temp_response);
|
|
if (! empty($temp_response[0])) {
|
|
$snmp_value = $temp_response[0];
|
|
}
|
|
}
|
|
|
|
if (is_numeric($snmp_value)) {
|
|
$value = $snmp_value;
|
|
} elseif ($sensor_class === 'state') {
|
|
// translate string states to values (poller does this as well)
|
|
$states = array_column($data['states'], 'value', 'descr');
|
|
$value = isset($states[$snmp_value]) ? $states[$snmp_value] : false;
|
|
} else {
|
|
$value = false;
|
|
}
|
|
|
|
$skippedFromYaml = YamlDiscovery::canSkipItem($value, $index, $data, $sensor_options, $pre_cache);
|
|
|
|
// Check if we have a "num_oid" value. If not, we'll try to compute it from textual OIDs with snmptranslate.
|
|
if (empty($data['num_oid'])) {
|
|
try {
|
|
$data['num_oid'] = YamlDiscovery::computeNumericalOID($os, $data);
|
|
} catch (\Exception $e) {
|
|
d_echo('Error: We cannot find a numerical OID for ' . $data['value'] . '. Skipping this one...');
|
|
$skippedFromYaml = true;
|
|
// Because we don't have a num_oid, we have no way to add this sensor.
|
|
}
|
|
}
|
|
|
|
if ($skippedFromYaml === false && is_numeric($value)) {
|
|
d_echo("Sensor fetched value: $value\n");
|
|
|
|
// process the oid (num_oid will contain index or str2num replacement calls)
|
|
$oid = trim(YamlDiscovery::replaceValues('num_oid', $index, null, $data, []));
|
|
|
|
// process the description
|
|
$descr = trim(YamlDiscovery::replaceValues('descr', $index, null, $data, $pre_cache));
|
|
|
|
// process the group
|
|
$group = trim(YamlDiscovery::replaceValues('group', $index, null, $data, $pre_cache)) ?: null;
|
|
|
|
$divisor = (int) (isset($data['divisor']) ? (YamlDiscovery::replaceValues('divisor', $index, $count, $data, $pre_cache) ?: 1) : ($sensor_options['divisor'] ?? 1));
|
|
$multiplier = (int) (isset($data['multiplier']) ? (YamlDiscovery::replaceValues('multiplier', $index, $count, $data, $pre_cache) ?: 1) : ($sensor_options['multiplier'] ?? 1));
|
|
|
|
$limits = ['low_limit', 'low_warn_limit', 'warn_limit', 'high_limit'];
|
|
foreach ($limits as $limit) {
|
|
if (isset($data[$limit]) && is_numeric($data[$limit])) {
|
|
$$limit = $data[$limit];
|
|
} else {
|
|
$$limit = YamlDiscovery::getValueFromData($limit, $index, $data, $pre_cache, 'null');
|
|
if (is_numeric($$limit)) {
|
|
$$limit = ($$limit / $divisor) * $multiplier;
|
|
}
|
|
if (is_numeric($$limit) && isset($user_function)) {
|
|
if (is_callable($user_function)) {
|
|
$$limit = $user_function($$limit);
|
|
} else {
|
|
$$limit = (new UserFuncHelper($$limit))->{$user_function}();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
$sensor_name = $device['os'];
|
|
|
|
if ($sensor_class === 'state') {
|
|
$sensor_name = $data['state_name'] ?? $data['oid'];
|
|
create_state_index($sensor_name, $data['states']);
|
|
} else {
|
|
// We default to 1 for both divisors / multipliers so it should be safe to do the calculation using both.
|
|
$value = ($value / $divisor) * $multiplier;
|
|
}
|
|
|
|
$entPhysicalIndex = YamlDiscovery::replaceValues('entPhysicalIndex', $index, null, $data, $pre_cache) ?: null;
|
|
$entPhysicalIndex_measured = isset($data['entPhysicalIndex_measured']) ? $data['entPhysicalIndex_measured'] : null;
|
|
|
|
//user_func must be applied after divisor/multiplier
|
|
if (isset($user_function)) {
|
|
if (is_callable($user_function)) {
|
|
$value = $user_function($value);
|
|
} else {
|
|
$value = (new UserFuncHelper($value, $snmp_data[$data['value']], $data))->{$user_function}();
|
|
}
|
|
}
|
|
|
|
$uindex = $index;
|
|
if (isset($data['index'])) {
|
|
if (Str::contains($data['index'], '{{')) {
|
|
$uindex = trim(YamlDiscovery::replaceValues('index', $index, null, $data, $pre_cache));
|
|
} else {
|
|
$uindex = $data['index'];
|
|
}
|
|
}
|
|
|
|
discover_sensor(null, $sensor_class, $device, $oid, $uindex, $sensor_name, $descr, $divisor, $multiplier, $low_limit, $low_warn_limit, $warn_limit, $high_limit, $value, 'snmp', $entPhysicalIndex, $entPhysicalIndex_measured, $user_function, $group, $data['rrd_type'] ?? 'GAUGE');
|
|
|
|
if ($sensor_class === 'state') {
|
|
create_sensor_to_state_index($device, $sensor_name, $uindex);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param $types
|
|
* @param OS $os
|
|
* @param array $pre_cache
|
|
*/
|
|
function sensors($types, $os, $pre_cache = [])
|
|
{
|
|
$device = &$os->getDeviceArray();
|
|
foreach ((array) $types as $sensor_class) {
|
|
echo ucfirst($sensor_class) . ': ';
|
|
$dir = Config::get('install_dir') . '/includes/discovery/sensors/' . $sensor_class . '/';
|
|
|
|
if (isset($device['os_group']) && is_file($dir . $device['os_group'] . '.inc.php')) {
|
|
include $dir . $device['os_group'] . '.inc.php';
|
|
}
|
|
if (is_file($dir . $device['os'] . '.inc.php')) {
|
|
include $dir . $device['os'] . '.inc.php';
|
|
}
|
|
if (Config::getOsSetting($device['os'], 'rfc1628_compat', false)) {
|
|
if (is_file($dir . '/rfc1628.inc.php')) {
|
|
include $dir . '/rfc1628.inc.php';
|
|
}
|
|
}
|
|
discovery_process($os, $sensor_class, $pre_cache);
|
|
app('sensor-discovery')->sync(sensor_class: $sensor_class, poller_type: 'snmp');
|
|
echo "\n";
|
|
}
|
|
}
|
|
|
|
function build_bgp_peers($device, $data, $peer2)
|
|
{
|
|
d_echo("Peers : $data\n");
|
|
$remove = [
|
|
'ARISTA-BGP4V2-MIB::aristaBgp4V2PeerRemoteAs.1.',
|
|
'ALCATEL-IND1-BGP-MIB::alaBgpPeerAS.',
|
|
'CISCO-BGP4-MIB::cbgpPeer2RemoteAs.',
|
|
'BGP4-MIB::bgpPeerRemoteAs.',
|
|
'HUAWEI-BGP-VPN-MIB::hwBgpPeerRemoteAs.',
|
|
'.1.3.6.1.4.1.2636.5.1.1.2.1.1.1.13.',
|
|
];
|
|
$peers = trim(str_replace($remove, '', $data));
|
|
|
|
$peerlist = [];
|
|
$ver = '';
|
|
foreach ($peers ? explode("\n", $peers) : [] as $peer) {
|
|
$local_ip = null;
|
|
if ($peer2 === true) {
|
|
[$ver, $peer] = explode('.', $peer, 2);
|
|
}
|
|
[$peer_ip, $peer_as] = explode(' ', $peer);
|
|
if ($device['os'] === 'junos') {
|
|
$ver = '';
|
|
$octets = count(explode('.', $peer_ip));
|
|
if ($octets > 11) {
|
|
// ipv6
|
|
$peer_ip = (string) IP::parse(snmp2ipv6($peer_ip), true);
|
|
} else {
|
|
// ipv4
|
|
$peer_ip = implode('.', array_slice(explode('.', $peer_ip), -4));
|
|
}
|
|
} else {
|
|
if (strstr($peer_ip, ':')) {
|
|
$peer_ip_snmp = preg_replace('/:/', ' ', $peer_ip);
|
|
$peer_ip = preg_replace('/(\S+\s+\S+)\s/', '$1:', $peer_ip_snmp);
|
|
$peer_ip = str_replace('"', '', str_replace(' ', '', $peer_ip));
|
|
}
|
|
}
|
|
if ($peer && $peer_ip != '0.0.0.0') {
|
|
if ($peer_as < 0) {
|
|
//if ASN is negative -> overflow int32 -> original number is max(INT32) - min(INT32) + 1 + value
|
|
$peer_as = 4294967296 + $peer_as;
|
|
}
|
|
d_echo("Found peer $peer_ip (AS$peer_as)\n");
|
|
$peerlist[] = [
|
|
'ip' => $peer_ip,
|
|
'as' => $peer_as,
|
|
'localip' => $local_ip ?: '0.0.0.0',
|
|
'ver' => $ver,
|
|
];
|
|
}
|
|
}
|
|
|
|
return $peerlist;
|
|
}
|
|
|
|
function build_cbgp_peers($device, $peer, $af_data, $peer2)
|
|
{
|
|
d_echo('afi data :: ');
|
|
d_echo($af_data);
|
|
|
|
$af_list = [];
|
|
foreach ($af_data as $k => $v) {
|
|
if ($peer2 === true) {
|
|
[,$k] = explode('.', $k, 2);
|
|
}
|
|
|
|
d_echo("AFISAFI = $k\n");
|
|
|
|
$afisafi_tmp = explode('.', $k);
|
|
if ($device['os_group'] === 'vrp') {
|
|
$vpninst_id = array_shift($afisafi_tmp);
|
|
$afi = array_shift($afisafi_tmp);
|
|
$safi = array_shift($afisafi_tmp);
|
|
$peertype = array_shift($afisafi_tmp);
|
|
$bgp_ip = implode('.', $afisafi_tmp);
|
|
} elseif ($device['os'] == 'aos7') {
|
|
$afi = 'ipv4';
|
|
$safi = 'unicast';
|
|
$bgp_ip = $k;
|
|
} else {
|
|
$safi = array_pop($afisafi_tmp);
|
|
$afi = array_pop($afisafi_tmp);
|
|
$bgp_ip = str_replace(".$afi.$safi", '', $k);
|
|
if ($device['os_group'] === 'arista') {
|
|
$bgp_ip = str_replace("$afi.", '', $bgp_ip);
|
|
}
|
|
}
|
|
$bgp_ip = preg_replace('/:/', ' ', $bgp_ip);
|
|
$bgp_ip = preg_replace('/(\S+\s+\S+)\s/', '$1:', $bgp_ip);
|
|
$bgp_ip = str_replace('"', '', str_replace(' ', '', $bgp_ip));
|
|
|
|
if ($afi && $safi && $bgp_ip == $peer['ip']) {
|
|
$af_list[$bgp_ip][$afi][$safi] = 1;
|
|
add_cbgp_peer($device, $peer, $afi, $safi);
|
|
}
|
|
}
|
|
|
|
return $af_list;
|
|
}
|
|
|
|
function add_bgp_peer($device, $peer)
|
|
{
|
|
if (dbFetchCell('SELECT COUNT(*) from `bgpPeers` WHERE device_id = ? AND bgpPeerIdentifier = ?', [$device['device_id'], $peer['ip']]) < '1') {
|
|
$bgpPeers = [
|
|
'device_id' => $device['device_id'],
|
|
'bgpPeerIdentifier' => $peer['ip'],
|
|
'bgpPeerRemoteAs' => $peer['as'],
|
|
'context_name' => $device['context_name'],
|
|
'astext' => $peer['astext'],
|
|
'bgpPeerState' => 'idle',
|
|
'bgpPeerAdminStatus' => 'stop',
|
|
'bgpLocalAddr' => $peer['localip'] ?: '0.0.0.0',
|
|
'bgpPeerRemoteAddr' => '0.0.0.0',
|
|
'bgpPeerInUpdates' => 0,
|
|
'bgpPeerOutUpdates' => 0,
|
|
'bgpPeerInTotalMessages' => 0,
|
|
'bgpPeerOutTotalMessages' => 0,
|
|
'bgpPeerFsmEstablishedTime' => 0,
|
|
'bgpPeerInUpdateElapsedTime' => 0,
|
|
];
|
|
dbInsert($bgpPeers, 'bgpPeers');
|
|
if (Config::get('autodiscovery.bgp')) {
|
|
$name = gethostbyaddr($peer['ip']);
|
|
discover_new_device($name, $device, 'BGP');
|
|
}
|
|
echo '+';
|
|
} else {
|
|
dbUpdate(['bgpPeerRemoteAs' => $peer['as'], 'astext' => $peer['astext']], 'bgpPeers', 'device_id=? AND bgpPeerIdentifier=?', [$device['device_id'], $peer['ip']]);
|
|
echo '.';
|
|
}
|
|
}
|
|
|
|
function add_cbgp_peer($device, $peer, $afi, $safi)
|
|
{
|
|
if (dbFetchCell('SELECT COUNT(*) from `bgpPeers_cbgp` WHERE device_id = ? AND bgpPeerIdentifier = ? AND afi=? AND safi=?', [$device['device_id'], $peer['ip'], $afi, $safi]) == 0) {
|
|
$cbgp = [
|
|
'device_id' => $device['device_id'],
|
|
'bgpPeerIdentifier' => $peer['ip'],
|
|
'afi' => $afi,
|
|
'safi' => $safi,
|
|
'context_name' => $device['context_name'],
|
|
'AcceptedPrefixes' => 0,
|
|
'DeniedPrefixes' => 0,
|
|
'PrefixAdminLimit' => 0,
|
|
'PrefixThreshold' => 0,
|
|
'PrefixClearThreshold' => 0,
|
|
'AdvertisedPrefixes' => 0,
|
|
'SuppressedPrefixes' => 0,
|
|
'WithdrawnPrefixes' => 0,
|
|
'AcceptedPrefixes_delta' => 0,
|
|
'AcceptedPrefixes_prev' => 0,
|
|
'DeniedPrefixes_delta' => 0,
|
|
'DeniedPrefixes_prev' => 0,
|
|
'AdvertisedPrefixes_delta' => 0,
|
|
'AdvertisedPrefixes_prev' => 0,
|
|
'SuppressedPrefixes_delta' => 0,
|
|
'SuppressedPrefixes_prev' => 0,
|
|
'WithdrawnPrefixes_delta' => 0,
|
|
'WithdrawnPrefixes_prev' => 0,
|
|
];
|
|
dbInsert($cbgp, 'bgpPeers_cbgp');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* check if we should skip this device from discovery
|
|
*
|
|
* @param string $sysName
|
|
* @param string $sysDescr
|
|
* @param string $platform
|
|
* @return bool
|
|
*/
|
|
function can_skip_discovery($sysName, $sysDescr = '', $platform = '')
|
|
{
|
|
if ($sysName) {
|
|
foreach ((array) Config::get('autodiscovery.xdp_exclude.sysname_regexp') as $needle) {
|
|
if (preg_match($needle . 'i', $sysName)) {
|
|
d_echo("$sysName - regexp '$needle' matches '$sysName' - skipping device discovery \n");
|
|
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($sysDescr) {
|
|
foreach ((array) Config::get('autodiscovery.xdp_exclude.sysdesc_regexp') as $needle) {
|
|
if (preg_match($needle . 'i', $sysDescr)) {
|
|
d_echo("$sysName - regexp '$needle' matches '$sysDescr' - skipping device discovery \n");
|
|
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($platform) {
|
|
foreach ((array) Config::get('autodiscovery.cdp_exclude.platform_regexp') as $needle) {
|
|
if (preg_match($needle . 'i', $platform)) {
|
|
d_echo("$sysName - regexp '$needle' matches '$platform' - skipping device discovery \n");
|
|
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Try to find a device by sysName, hostname, ip, or mac_address
|
|
* If a device cannot be found, returns 0
|
|
*
|
|
* @param string $name sysName or hostname
|
|
* @param string $ip May be an IP or hex string
|
|
* @param string $mac_address
|
|
* @return int the device_id or 0
|
|
*/
|
|
function find_device_id($name = '', $ip = '', $mac_address = '')
|
|
{
|
|
$where = [];
|
|
$params = [];
|
|
|
|
if ($name && \LibreNMS\Util\Validate::hostname($name)) {
|
|
$where[] = '`hostname`=?';
|
|
$params[] = $name;
|
|
|
|
if ($mydomain = Config::get('mydomain')) {
|
|
$where[] = '`hostname`=?';
|
|
$params[] = "$name.$mydomain";
|
|
|
|
$where[] = 'concat(`hostname`, \'.\', ?) =?';
|
|
$params[] = "$mydomain";
|
|
$params[] = "$name";
|
|
}
|
|
}
|
|
|
|
if ($ip) {
|
|
$where[] = '`hostname`=?';
|
|
$params[] = $ip;
|
|
|
|
try {
|
|
$params[] = IP::fromHexString($ip)->packed();
|
|
$where[] = '`ip`=?';
|
|
} catch (InvalidIpException $e) {
|
|
//
|
|
}
|
|
}
|
|
|
|
if (! empty($where)) {
|
|
$sql = 'SELECT `device_id` FROM `devices` WHERE ' . implode(' OR ', $where);
|
|
if ($device_id = dbFetchCell($sql, $params)) {
|
|
return (int) $device_id;
|
|
}
|
|
}
|
|
|
|
if ($mac_address && $mac_address != '000000000000') {
|
|
if ($device_id = dbFetchCell('SELECT `device_id` FROM `ports` WHERE `ifPhysAddress`=?', [$mac_address])) {
|
|
return (int) $device_id;
|
|
}
|
|
}
|
|
|
|
if ($name) {
|
|
$where = [];
|
|
$params = [];
|
|
|
|
$where[] = '`sysName`=?';
|
|
$params[] = $name;
|
|
|
|
if ($mydomain = Config::get('mydomain')) {
|
|
$where[] = '`sysName`=?';
|
|
$params[] = "$name.$mydomain";
|
|
|
|
$where[] = 'concat(`sysName`, \'.\', ?) =?';
|
|
$params[] = "$mydomain";
|
|
$params[] = "$name";
|
|
}
|
|
|
|
$sql = 'SELECT `device_id` FROM `devices` WHERE ' . implode(' OR ', $where) . ' LIMIT 2';
|
|
$ids = dbFetchColumn($sql, $params);
|
|
if (count($ids) == 1) {
|
|
return (int) $ids[0];
|
|
} elseif (count($ids) > 1) {
|
|
d_echo("find_device_id: more than one device found with sysName '$name'.\n");
|
|
// don't do anything, try other methods, if any
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Try to find a port by ifDescr, ifName, ifAlias, or MAC
|
|
*
|
|
* @param string $description matched against ifDescr, ifName, and ifAlias
|
|
* @param string $identifier matched against ifDescr, ifName, and ifAlias
|
|
* @param int $device_id restrict search to ports on a specific device
|
|
* @param string $mac_address check against ifPhysAddress (should be in lowercase hexadecimal)
|
|
* @return int
|
|
*/
|
|
function find_port_id($description, $identifier = '', $device_id = 0, $mac_address = null)
|
|
{
|
|
if (! ($device_id || $mac_address)) {
|
|
return 0;
|
|
}
|
|
|
|
$statements = [];
|
|
$params = [];
|
|
|
|
if ($device_id) {
|
|
if ($description) {
|
|
// order is important here, the standard says this is ifDescr, which some mfg confuse with ifName
|
|
$statements[] = 'SELECT `port_id` FROM `ports` WHERE `device_id`=? AND (`ifDescr`=? OR `ifName`=?)';
|
|
$params[] = $device_id;
|
|
$params[] = $description;
|
|
$params[] = $description;
|
|
}
|
|
|
|
if ($identifier) {
|
|
if (is_numeric($identifier)) {
|
|
$statements[] = 'SELECT `port_id` FROM `ports` WHERE `device_id`=? AND (`ifIndex`=? OR `ifAlias`=?)';
|
|
} else {
|
|
$statements[] = 'SELECT `port_id` FROM `ports` WHERE `device_id`=? AND (`ifDescr`=? OR `ifName`=?)';
|
|
}
|
|
$params[] = $device_id;
|
|
$params[] = $identifier;
|
|
$params[] = $identifier;
|
|
}
|
|
|
|
if ($description) {
|
|
// we check ifAlias last because this is a user editable field, but some bad LLDP implementations use it
|
|
$statements[] = 'SELECT `port_id` FROM `ports` WHERE `device_id`=? AND `ifAlias`=?';
|
|
$params[] = $device_id;
|
|
$params[] = $description;
|
|
}
|
|
}
|
|
|
|
if ($mac_address) {
|
|
$mac_statement = 'SELECT `port_id` FROM `ports` WHERE ';
|
|
if ($device_id) {
|
|
$mac_statement .= '`device_id`=? AND ';
|
|
$params[] = $device_id;
|
|
}
|
|
$mac_statement .= '`ifPhysAddress`=?';
|
|
|
|
$statements[] = $mac_statement;
|
|
$params[] = $mac_address;
|
|
}
|
|
|
|
if (empty($statements)) {
|
|
return 0;
|
|
}
|
|
|
|
$queries = implode(' UNION ', $statements);
|
|
$sql = "SELECT * FROM ($queries LIMIT 1) p";
|
|
|
|
return (int) dbFetchCell($sql, $params);
|
|
}
|