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74 lines
2.7 KiB
PHP
74 lines
2.7 KiB
PHP
<?php
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/**
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* Dispatcher.php
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*
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* Creates the correct handler for the trap and then sends it the trap.
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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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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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* @link https://www.librenms.org
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*
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* @copyright 2018 Tony Murray
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* @author Tony Murray <murraytony@gmail.com>
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*/
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namespace LibreNMS\Snmptrap;
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use LibreNMS\Alert\AlertRules;
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use LibreNMS\Config;
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use LibreNMS\Snmptrap\Handlers\Fallback;
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use Log;
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class Dispatcher
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{
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/**
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* Instantiate the correct handler for this trap and call it's handle method
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*/
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public static function handle(Trap $trap)
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{
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if (empty($trap->getDevice())) {
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Log::warning('Could not find device for trap', ['trap_text' => $trap->getRaw()]);
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return false;
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}
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if ($trap->findOid('iso.3.6.1.6.3.1.1.4.1.0')) {
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// Even the TrapOid is not properly converted to text, so snmptrapd is probably not
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// configured with any MIBs (-M and/or -m).
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// LibreNMS snmptraps code cannot process received data. Let's inform the user.
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Log::event('Misconfigured MIBS or MIBDIRS for snmptrapd, check https://docs.librenms.org/Extensions/SNMP-Trap-Handler/ : ' . $trap->getRaw(), $trap->getDevice(), 'system');
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return false;
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}
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// note, this doesn't clear the resolved SnpmtrapHandler so only one per run
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/** @var \LibreNMS\Interfaces\SnmptrapHandler $handler */
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$handler = app(\LibreNMS\Interfaces\SnmptrapHandler::class, [$trap->getTrapOid()]);
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$handler->handle($trap->getDevice(), $trap);
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// log an event if appropriate
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$fallback = $handler instanceof Fallback;
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$logging = Config::get('snmptraps.eventlog', 'unhandled');
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$detailed = Config::get('snmptraps.eventlog_detailed', false);
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if ($logging == 'all' || ($fallback && $logging == 'unhandled')) {
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Log::event($trap->toString($detailed), $trap->getDevice(), 'trap');
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} else {
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$rules = new AlertRules;
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$rules->runRules($trap->getDevice()->device_id);
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}
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return ! $fallback;
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}
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}
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