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initial commit; version 22.5.12042

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This commit is contained in:
Chris Hammer
2022-12-12 23:28:25 -05:00
commit af1b03d79f
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179
includes/discovery/vlans/q-bridge-mib.inc.php Normal file
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<?php
/*
* Observium
*
* This file is part of Observium.
*
* @package observium
* @subpackage discovery
* @copyright (C) 2006-2013 Adam Armstrong, (C) 2013-2021 Observium Limited
*
*/
if (is_device_mib($device, 'CISCO-VTP-MIB')) {
// Q-BRIDGE-MIB is default mib, need excludes Cisco
return;
}
$domain_index = '1';
if (safe_count($discovery_vlans[$domain_index]) &&
is_device_mib($device, [ 'CISCOSB-vlan-MIB', 'RADLAN-vlan-MIB', 'Dell-vlan-MIB',
'DLINK-3100-vlan-MIB', 'EDGECORE-vlan-MIB', 'NETGEAR-RADLAN-vlan-MIB',
'IEEE8021-Q-BRIDGE-MIB' ])) {
// Already discovered by RADLAN based vlans or IEEE8021-Q-BRIDGE-MIB
return;
}
// Simplify dot1qVlanStaticTable walk
$dot1q_ports = snmpwalk_cache_oid($device, 'dot1qVlanStaticName', array(), 'Q-BRIDGE-MIB');
//$dot1q_ports = snmpwalk_cache_oid($device, 'dot1qVlanStaticTable', array(), 'Q-BRIDGE-MIB', NULL, OBS_SNMP_ALL_MULTILINE | OBS_SNMP_HEX);
if (!snmp_status()) {
return;
}
$dot1q_ports = snmpwalk_cache_oid($device, 'dot1qVlanStaticRowStatus', $dot1q_ports, 'Q-BRIDGE-MIB');
$dot1q_ports = snmpwalk_cache_oid($device, 'dot1qVlanStaticEgressPorts', $dot1q_ports, 'Q-BRIDGE-MIB', NULL, OBS_SNMP_ALL_MULTILINE | OBS_SNMP_HEX);
if (is_device_mib($device, 'JUNIPER-VLAN-MIB')) // Unsure if other Juniper platforms "affected"
{
// Fetch Juniper VLAN table for correct tag
$dot1q_ports = snmpwalk_cache_oid($device, 'jnxExVlanTable', $dot1q_ports, 'JUNIPER-VLAN-MIB');
}
/* Base port ifIndex association */
$dot1d_baseports = snmp_cache_table($device, 'dot1dBasePortIfIndex', array(), 'BRIDGE-MIB');
// Detect min ifIndex for vlan base ports
// Why, see here: http://jira.observium.org/browse/OBS-963
$use_baseports = count($dot1d_baseports) > 0;
/*
if ($use_baseports)
{
$vlan_ifindex_min = $dot1d_baseports[key($dot1d_baseports)]['dot1dBasePortIfIndex']; // First element
foreach ($dot1d_baseports as $entry)
{
// But min ifIndex can be in any entry
$vlan_ifindex_min = min($vlan_ifindex_min, $entry['dot1dBasePortIfIndex']);
}
} else {
$vlan_ifindex_min = 0;
}*/
/* End base port ifIndex association */
$binary_debug = array(); // DEBUG
foreach ($dot1q_ports as $vlan_num => $vlan) {
$vlan['ifIndex'] = $vlan_num;
// FTOS vlan fix
if ($device['os'] == 'ftos') {
// Q-BRIDGE-MIB::dot1qVlanStaticEgressPorts.1107787777, where 1107787777 is ifIndex for Vlan interface
//IF-MIB::ifDescr.1107787777 = STRING: Vlan 1
//IF-MIB::ifDescr.1107787998 = STRING: Vlan 222
$vlan_num = rewrite_ftos_vlanid($device, $vlan_num);
if (!is_numeric($vlan_num)) { continue; } // Skip unknown
}
// JunOS Vlan fix
if (isset($vlan['jnxExVlanTag'])) {
$vlan_num = $vlan['jnxExVlanTag'];
}
$vlan_array = array('ifIndex' => $vlan['ifIndex'],
'vlan_domain' => $domain_index,
'vlan_vlan' => $vlan_num,
'vlan_name' => $vlan['dot1qVlanStaticName'],
//'vlan_mtu' => '',
'vlan_type' => 'ethernet',
'vlan_status' => 'operational');
$discovery_vlans[$domain_index][$vlan_num] = $vlan_array;
/* End vlans discovery */
/* Per port vlans */
// Convert hex to binary map
$binary = hex2binmap($vlan['dot1qVlanStaticEgressPorts']);
if ($device['os'] == 'ftos') // FTOS specific
{
// FTOS devices use harder way for detect VLANs and associate ports
// See: https://www.force10networks.com/CSPortal20/TechTips/0041B_displaying_vlan_ports.aspx
// Port associations based on slot/port, each 12 hex pair (96 bin) is slot
foreach (str_split($binary, 96) as $slot => $binary_map)
{
$length = strlen($binary_map);
for ($i = 0; $i < $length; $i++)
{
if ($binary_map[$i])
{
// Now find slot/port from ifDescr
$port_map = '% '.$slot.'/'.($i + 1);
$ifIndex = dbFetchCell("SELECT `ifIndex` FROM `ports` WHERE `device_id` = ? AND `ifDescr` LIKE ? AND `deleted` = ? LIMIT 1", array($device['device_id'], $port_map, 0));
$discovery_ports_vlans[$ifIndex][$vlan_num] = array('vlan' => $vlan_num,
// FIXME. move STP to separate table
//'baseport' => $vlan_port_id,
//'priority' => $vlan_port['dot1dStpPortPriority'],
//'state' => $vlan_port['dot1dStpPortState'],
//'cost' => $vlan_port['dot1dStpPortPathCost']
);
}
}
}
} else {
// All others
// Assign binary vlans map to ports
$length = strlen($binary);
for ($i = 0; $i < $length; $i++)
{
if ($binary[$i])
{
//$ifIndex = $i + $vlan_ifindex_min; // This is incorrect ifIndex association!
if ($use_baseports)
{
// Skip all unknown indexes (OBS-2958)
if (!isset($dot1d_baseports[$i + 1]['dot1dBasePortIfIndex'])) { continue; }
$ifIndex = $dot1d_baseports[$i + 1]['dot1dBasePortIfIndex'];
} else {
$ifIndex = $i;
}
$binary_debug[$vlan_num][$i] = $ifIndex; // DEBUG
$discovery_ports_vlans[$ifIndex][$vlan_num] = array('vlan' => $vlan_num,
// FIXME. move STP to separate table
//'baseport' => $vlan_port_id,
//'priority' => $vlan_port['dot1dStpPortPriority'],
//'state' => $vlan_port['dot1dStpPortState'],
//'cost' => $vlan_port['dot1dStpPortPathCost']
);
}
}
}
}
print_debug_vars($binary_debug); // DEBUG
// As last point validate access ports that vlan is added (some devices not report it in dot1qVlanStaticTable)
$dot1q_ports = snmpwalk_cache_oid($device, 'dot1qPvid', array(), 'Q-BRIDGE-MIB');
foreach ($dot1q_ports as $entry)
{
$vlan_num = $entry['dot1qPvid'];
if (!isset($discovery_vlans[$domain_index][$vlan_num]))
{
$vlan_array = array('vlan_domain' => $domain_index,
'vlan_vlan' => $vlan_num,
'vlan_name' => 'VLAN '.$vlan_num,
//'vlan_mtu' => '',
'vlan_type' => 'ethernet',
'vlan_status' => 'operational');
$discovery_vlans[$domain_index][$vlan_num] = $vlan_array;
}
}
echo(PHP_EOL);
// EOF