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First cut at MIB-based discovery; not efficient

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This commit is contained in:
Paul Gear
2015-06-16 08:13:08 +10:00
parent 874dc5ede5
commit d969ef679b
4 changed files with 147 additions and 10 deletions
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includes/discovery/mib.inc.php
+53
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@@ -0,0 +1,53 @@
<?php
/*
* LibreNMS MIB-based discovery
*
* Copyright (c) 2015 Gear Consulting Pty Ltd <github@libertysys.com.au>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at your
* option) any later version. Please see LICENSE.txt at the top level of
* the source code distribution for details.
*/
/*
* The overall plan for MIB-based support is:
*
* Discovery:
* 1. SNMP_get sysObjectID; look for a MIB matching this object (set_os_mib).
* 2. Add any extra MIBs that should be there for a given device
* (includes/discovery/os/*.inc.php).
* 3. Walk these MIBs to see if they exist in the device (this file).
* Save the ones that do in the database table device_oids.
*
* Polling:
* 5. For each MIB in the device_oids table, walk the device for that MIB.
* 6. Save each MIB value in its own RRD file. (At present there is no
* deletion of values that disappear.)
*
* Graphing:
* 7. For each MIB in the device_oids table, create a graph from the RRD
* file. All graphs go into the MIB section at present.
*/
set_os_mib($device);
$mibs = array();
// remove any existing device_oids for this device
dbDelete('device_oids', 'device_id = ?', array($device['device_id']));
// parse MIBs and check for them on the device
foreach ($device['mibs'] as $name => $module) {
d_echo("MIB discovery: $name, $module");
$mibs[$name] = snmp_mib_load($name, $module);
$oids = snmpwalk_cache_oid($device, "$module::$name", array(), $module);
// add the oids for this device
foreach ($oids[0] as $key => $val) {
$data = $mibs[$name][$key];
$data['device_id'] = $device['device_id'];
$result = dbInsert($data, 'device_oids');
d_echo("dbInsert for $name $key returned $result");
}
}
includes/discovery/os/ruckuswireless.inc.php
+8
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@@ -3,6 +3,7 @@
* LibreNMS Ruckus Wireless OS information module
*
* Copyright (c) 2015 Søren Friis Rosiak <sorenrosiak@gmail.com>
* Copyright (c) 2015 Gear Consulting Pty Ltd <github@libertysys.com.au>
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at your
@@ -14,4 +15,11 @@ if (!$os) {
$os = "ruckuswireless";
}
}
if ($os == "ruckuswireless") {
$ruckus_mibs = array(
"ruckusZDSystemStats" => "RUCKUS-ZD-SYSTEM-MIB",
);
set_mibs($ruckus_mibs, $device);
}
?>