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d1b7004fef
* Severity Enum Replace old Alert constants * Fix whitespace * Additional uses * style fixes * Fix test too * More missed locations * More
55 lines
1.8 KiB
PHP
55 lines
1.8 KiB
PHP
<?php
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/**
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* CiscoDHCPServerFreeAddressLow.php
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*
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* Logs an event when the number of available IP addresses for a DHCP
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* address pool has fallen below the defined low threshold. Configurable
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* by issuing the `utilization mark high <percent>` on the DHCP pool in
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* configuration mode.
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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 2022 Josh Silvas
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* @author Josh Silvas <josh@jsilvas.com>
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*/
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namespace LibreNMS\Snmptrap\Handlers;
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use App\Models\Device;
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use LibreNMS\Enum\Severity;
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use LibreNMS\Interfaces\SnmptrapHandler;
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use LibreNMS\Snmptrap\Trap;
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class CiscoDHCPServerFreeAddressLow implements SnmptrapHandler
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{
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/**
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* Handle snmptrap.
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* Data is pre-parsed and delivered as a Trap.
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*
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* @param Device $device
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* @param Trap $trap
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* @return void
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*/
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public function handle(Device $device, Trap $trap)
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{
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$oid_prefix = 'CISCO-IETF-DHCP-SERVER-MIB::cDhcpv4ServerSharedNetFreeAddresses.';
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$oid = $trap->findOid($oid_prefix);
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$pool = str_replace($oid_prefix, '', $oid);
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$value = $trap->getOidData($oid);
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$trap->log("SNMP Trap: DHCP pool $pool address space low. Free addresses: '$value' addresses.", Severity::Error);
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}
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}
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