95 lines
4.0 KiB
PHP
95 lines
4.0 KiB
PHP
<?php
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/**
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* Observium
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*
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* This file is part of Observium.
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*
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* @package observium
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* @subpackage discovery
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* @copyright (C) Adam Armstrong
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*
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*/
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// This is generic *-ISDP-MIB discovery.
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$isdp_array = snmpwalk_cache_twopart_oid($device, 'agentIsdpCacheTable', [], $mib, NULL, OBS_SNMP_ALL_MULTILINE);
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print_debug_vars($isdp_array);
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if (empty($isdp_array)) {
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return;
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}
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foreach ($isdp_array as $ifIndex => $port_neighbours) {
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$port = get_port_by_index_cache($device, $ifIndex);
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foreach ($port_neighbours as $entry_id => $isdp) {
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if (safe_empty($isdp['agentIsdpCacheDevicePort']) && safe_empty($isdp['agentIsdpCachePlatform']) &&
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safe_empty($isdp['agentIsdpCacheAddress']) && safe_empty($isdp['agentIsdpCacheVersion'])) {
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// All neighbour fields are empty, ignore
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print_debug("Neighbour ignored: proto[isdp], " . $isdp['agentIsdpCacheDeviceId']);
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continue;
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}
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// Normally not possible, but I keep this ability for search local port
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if (!$port && !safe_empty($isdp['agentIsdpCacheLocalIntf'])) {
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$if = $isdp['agentIsdpCacheLocalIntf'];
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$query = 'SELECT * FROM `ports` WHERE (`ifName` = ? OR `ifDescr` = ? OR `port_label_short` = ?) AND `device_id` = ? AND `deleted` = ?';
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$port = dbFetchRow($query, [$if, $if, $if, $device['device_id'], 0]);
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}
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// Remote Hostname
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if (str_contains($isdp['agentIsdpCacheDeviceId'], '(')) {
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// Fix for Nexus ISDP neighbors: <hostname>(serial number)
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$isdp['agentIsdpCacheDeviceId'] = explode('(', $isdp['agentIsdpCacheDeviceId'])[0];
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}
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$remote_hostname = trim($isdp['agentIsdpCacheDeviceId']);
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// Remote address
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$remote_address = hex2ip($isdp['agentIsdpCacheAddress']);
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// Last change
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$last_change = timeticks_to_sec($isdp['agentIsdpCacheLastChange']);
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if ($last_change > 0) {
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$last_change = get_time() - $last_change;
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}
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// Try to find a remote device and check if already cached
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$remote_device_id = get_autodiscovery_device_id($device, $remote_hostname, $remote_address);
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if (is_null($remote_device_id) && // NULL - never cached in other rounds
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check_autodiscovery($remote_hostname, $remote_address)) // Check all previous autodiscovery rounds
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{
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// Neighbour never checked, try autodiscovery
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$remote_device_id = autodiscovery_device($remote_hostname, $remote_address, 'ISDP', $isdp['agentIsdpCachePlatform'], $device, $port);
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}
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$remote_port_id = NULL;
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$if = $isdp['agentIsdpCacheDevicePort'];
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if ($remote_device_id) {
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$query = 'SELECT `port_id` FROM `ports` WHERE (`ifName` = ? OR `ifDescr` = ? OR `port_label_short` = ?) AND `device_id` = ? AND `deleted` = ?';
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$remote_port_id = dbFetchCell($query, [$if, $if, $if, $remote_device_id, 0]);
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if (!$remote_port_id) {
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// Try by IP
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$peer_where = generate_query_values_and($remote_device_id, 'device_id'); // Additional filter for include self IPs
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// Fetch all ports with peer IP and filter by UP
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if ($ids = get_entity_ids_ip_by_network('port', $remote_address, $peer_where)) {
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$remote_port_id = $ids[0];
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//$port = get_port_by_id_cache($ids[0]);
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}
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}
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}
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$neighbour = [
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'remote_device_id' => $remote_device_id,
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'remote_port_id' => $remote_port_id,
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'remote_hostname' => $remote_hostname,
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'remote_port' => $isdp['agentIsdpCacheDevicePort'],
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'remote_platform' => $isdp['agentIsdpCachePlatform'],
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'remote_version' => $isdp['agentIsdpCacheVersion'],
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'remote_address' => $remote_address,
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'last_change' => $last_change
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];
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discover_neighbour($port, 'isdp', $neighbour);
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}
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}
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// EOF
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