mirror of
https://github.com/librenms/librenms.git
synced 2024-10-07 16:52:45 +00:00
96 lines
3.7 KiB
PHP
96 lines
3.7 KiB
PHP
<?php
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// Build SNMP Cache Array
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$port_stats = array();
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$port_stats = snmpwalk_cache_oid($device, 'ifDescr', $port_stats, 'IF-MIB');
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$port_stats = snmpwalk_cache_oid($device, 'ifName', $port_stats, 'IF-MIB');
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$port_stats = snmpwalk_cache_oid($device, 'ifType', $port_stats, 'IF-MIB');
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// End Building SNMP Cache Array
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d_echo($port_stats);
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// By default libreNMS uses the ifIndex to associate ports on devices with ports discoverd/polled
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// before and stored in the database. On Linux boxes this is a problem as ifIndexes may be
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// unstable between reboots or (re)configuration of tunnel interfaces (think: GRE/OpenVPN/Tinc/...)
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// The port association configuration allows to choose between association via ifIndex, ifName,
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// or maybe other means in the future. The default port association mode still is ifIndex for
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// compatibility reasons.
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$port_association_mode = $config['default_port_association_mode'];
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if ($device['port_association_mode']) {
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$port_association_mode = get_port_assoc_mode_name($device['port_association_mode']);
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}
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// Build array of ports in the database and an ifIndex/ifName -> port_id map
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$ports_mapped = get_ports_mapped($device['device_id']);
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$ports_db = $ports_mapped['ports'];
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//
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// Rename any old RRD files still named after the previous ifIndex based naming schema.
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foreach ($ports_mapped['maps']['ifIndex'] as $ifIndex => $port_id) {
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foreach (array ('', '-adsl', '-dot3') as $suffix) {
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$old_rrd_name = "port-$ifIndex$suffix.rrd";
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$new_rrd_name = getPortRrdName($port_id, ltrim($suffix, '-'));
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rrd_file_rename($device, $old_rrd_name, $new_rrd_name);
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}
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}
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// New interface detection
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foreach ($port_stats as $ifIndex => $port) {
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// Store ifIndex in port entry and prefetch ifName as we'll need it multiple times
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$port['ifIndex'] = $ifIndex;
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$ifName = $port['ifName'];
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// Get port_id according to port_association_mode used for this device
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$port_id = get_port_id($ports_mapped, $port, $port_association_mode);
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if (is_port_valid($port, $device)) {
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// Port newly discovered?
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if (! is_array($ports_db[$port_id])) {
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$port_id = dbInsert(array('device_id' => $device['device_id'], 'ifIndex' => $ifIndex, 'ifName' => $ifName), 'ports');
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$ports[$port_id] = dbFetchRow('SELECT * FROM `ports` WHERE `device_id` = ? AND `port_id` = ?', array($device['device_id'], $port_id));
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echo 'Adding: '.$ifName.'('.$ifIndex.')('.$port_id.')';
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} // Port re-discovered after previous deletion?
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elseif ($ports_db[$port_id]['deleted'] == '1') {
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dbUpdate(array('deleted' => '0'), 'ports', '`port_id` = ?', array($port_id));
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$ports_db[$port_id]['deleted'] = '0';
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echo 'U';
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} else {
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echo '.';
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}
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// We've seen it. Remove it from the cache.
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unset($ports_l[$ifIndex]);
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} // Port vanished (mark as deleted)
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else {
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if (is_array($ports_db[$port_id])) {
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if ($ports_db[$port_id]['deleted'] != '1') {
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dbUpdate(array('deleted' => '1'), 'ports', '`port_id` = ?', array($port_id));
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$ports_db[$port_id]['deleted'] = '1';
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echo '-';
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}
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}
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echo 'X';
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}//end if
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}//end foreach
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// End New interface detection
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// Interface Deletion
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// If it's in our $ports_l list, that means it's not been seen. Mark it deleted.
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foreach ($ports_l as $ifIndex => $port_id) {
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if ($ports_db[$ifIndex]['deleted'] == '0') {
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dbUpdate(array('deleted' => '1'), 'ports', '`port_id` = ?', array($port_id));
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echo '-'.$ifIndex;
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}
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}
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// End interface deletion
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echo "\n";
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// Clear Variables Here
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unset($port_stats);
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unset($ports_db);
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