librenms-librenms/includes/discovery/discovery-protocols.inc.php

<?php

echo 'Discovery protocols:';

global $link_exists;

$community = $device['community'];

if ($device['os'] == 'ironware' && $config['autodiscovery']['xdp'] === true) {
    echo ' Brocade FDP: ';
    $fdp_array = snmpwalk_cache_twopart_oid($device, 'snFdpCacheEntry', array(), 'FOUNDRY-SN-SWITCH-GROUP-MIB');
    if ($fdp_array) {
        unset($fdp_links);
        foreach (array_keys($fdp_array) as $key) {
            $interface    = dbFetchRow('SELECT * FROM `ports` WHERE `device_id` = ? AND `ifIndex` = ?', array($device['device_id'], $key));
            $fdp_if_array = $fdp_array[$key];
            foreach (array_keys($fdp_if_array) as $entry_key) {
                $fdp              = $fdp_if_array[$entry_key];
                $remote_device_id = dbFetchCell('SELECT `device_id` FROM `devices` WHERE `sysName` = ? OR `hostname` = ?', array($fdp['snFdpCacheDeviceId'], $fdp['snFdpCacheDeviceId']));

                if (!$remote_device_id) {
                    $remote_device_id = discover_new_device($fdp['snFdpCacheDeviceId'], $device, 'FDP', $interface);
                }

                if ($remote_device_id) {
                    $if             = $fdp['snFdpCacheDevicePort'];
                    $remote_port_id = dbFetchCell('SELECT port_id FROM `ports` WHERE (`ifDescr` = ? OR `ifName` = ?) AND `device_id` = ?', array($if, $if, $remote_device_id));
                }
                else {
                    $remote_port_id = '0';
                }

                discover_link($interface['port_id'], $fdp['snFdpCacheVendorId'], $remote_port_id, $fdp['snFdpCacheDeviceId'], $fdp['snFdpCacheDevicePort'], $fdp['snFdpCachePlatform'], $fdp['snFdpCacheVersion'], $device['device_id'], $remote_device_id);
            }
        }//end foreach
    }//end if
}//end if

echo ' CISCO-CDP-MIB: ';
unset($cdp_array);
$cdp_array = snmpwalk_cache_twopart_oid($device, 'cdpCache', array(), 'CISCO-CDP-MIB');
if ($cdp_array && $config['autodiscovery']['xdp'] === true) {
    unset($cdp_links);
    foreach (array_keys($cdp_array) as $key) {
        $interface        = dbFetchRow('SELECT * FROM `ports` WHERE device_id = ? AND `ifIndex` = ?', array($device['device_id'], $key));
        $cdp_if_array = $cdp_array[$key];
        foreach (array_keys($cdp_if_array) as $entry_key) {
            $cdp = $cdp_if_array[$entry_key];
            if (is_valid_hostname($cdp['cdpCacheDeviceId'])) {
                $remote_device_id = dbFetchCell('SELECT `device_id` FROM `devices` WHERE `sysName` = ? OR `hostname` = ?', array($cdp['cdpCacheDeviceId'], $cdp['cdpCacheDeviceId']));

                if (!$remote_device_id) {
                    $remote_device_id = discover_new_device($cdp['cdpCacheDeviceId'], $device, 'CDP', $interface);
                }

                if ($remote_device_id) {
                    $if             = $cdp['cdpCacheDevicePort'];
                    $remote_port_id = dbFetchCell('SELECT port_id FROM `ports` WHERE (`ifDescr` = ? OR `ifName` = ?) AND `device_id` = ?', array($if, $if, $remote_device_id));
                }
                else {
                    $remote_port_id = '0';
                }

                if ($interface['port_id'] && $cdp['cdpCacheDeviceId'] && $cdp['cdpCacheDevicePort']) {
                    discover_link($interface['port_id'], 'cdp', $remote_port_id, $cdp['cdpCacheDeviceId'], $cdp['cdpCacheDevicePort'], $cdp['cdpCachePlatform'], $cdp['cdpCacheVersion'], $device['device_id'], $remote_device_id);
                }
            }
            else {
                echo 'X';
            }//end if
        }//end foreach
    }//end foreach
}//end if

echo ' LLDP-MIB: ';

unset($lldp_array);
$lldp_array  = snmpwalk_cache_threepart_oid($device, 'lldpRemoteSystemsData', array(), 'LLDP-MIB');
$dot1d_array = snmpwalk_cache_oid($device, 'dot1dBasePortIfIndex', array(), 'BRIDGE-MIB');

if ($lldp_array && $config['autodiscovery']['xdp'] === true) {
    $lldp_links = '';
    foreach (array_keys($lldp_array) as $key) {
        $lldp_if_array = $lldp_array[$key];
        foreach (array_keys($lldp_if_array) as $entry_key) {
            if (is_numeric($dot1d_array[$entry_key]['dot1dBasePortIfIndex'])) {
                $ifIndex = $dot1d_array[$entry_key]['dot1dBasePortIfIndex'];
            }
            else {
                $ifIndex = $entry_key;
            }

            $interface     = dbFetchRow('SELECT * FROM `ports` WHERE `device_id` = ? AND `ifIndex` = ?', array($device['device_id'], $ifIndex));
            $lldp_instance = $lldp_if_array[$entry_key];
            foreach (array_keys($lldp_instance) as $entry_instance) {
                $lldp             = $lldp_instance[$entry_instance];
                $remote_device_id = dbFetchCell('SELECT `device_id` FROM `devices` WHERE `sysName` = ? OR `hostname` = ?', array($lldp['lldpRemSysName'], $lldp['lldpRemSysName']));

                if (!$remote_device_id && is_valid_hostname($lldp['lldpRemSysName'])) {
                    $remote_device_id = discover_new_device($lldp['lldpRemSysName'], $device, 'LLDP', $interface);
                }

                if ($remote_device_id) {
                    $if             = $lldp['lldpRemPortDesc'];
                    $id             = $lldp['lldpRemPortId'];
                    $remote_port_id = dbFetchCell('SELECT `port_id` FROM `ports` WHERE (`ifDescr` = ? OR `ifName` = ? OR `ifDescr` = ? OR `ifName` = ?) AND `device_id` = ?', array($if, $if, $id, $id, $remote_device_id));
                }
                else {
                    $remote_port_id = '0';
                }

                if (is_numeric($interface['port_id']) && isset($lldp['lldpRemSysName']) && isset($lldp['lldpRemPortId'])) {
                    discover_link($interface['port_id'], 'lldp', $remote_port_id, $lldp['lldpRemSysName'], $lldp['lldpRemPortId'], null, $lldp['lldpRemSysDesc'], $device['device_id'], $remote_device_id);
                }
            }//end foreach
        }//end foreach
    }//end foreach
}//end if

echo 'OSPF Discovery: ';

if ($config['autodiscovery']['ospf'] === true) {
    echo "enabled\n";
    foreach (dbFetchRows('SELECT DISTINCT(`ospfNbrIpAddr`),`device_id` FROM `ospf_nbrs` WHERE `device_id`=?', array($device['device_id'])) as $nbr) {
        $ip = $nbr['ospfNbrIpAddr'];
        if (match_network($config['autodiscovery']['nets-exclude'], $ip)) {
            echo 'x';
            continue;
        }

        if (!match_network($config['nets'], $ip)) {
            echo 'i';
            continue;
        }

        $name             = gethostbyaddr($ip);
        $remote_device_id = discover_new_device($name, $device, 'OSPF');
    }
}
else {
    echo "disabled\n";
}

if ($debug) {
    print_r($link_exists);
}

$sql = "SELECT * FROM `links` AS L, `ports` AS I WHERE L.local_port_id = I.port_id AND I.device_id = '".$device['device_id']."'";
foreach (dbFetchRows($sql) as $test) {
    $local_port_id   = $test['local_port_id'];
    $remote_hostname = $test['remote_hostname'];
    $remote_port     = $test['remote_port'];
    if ($debug) {
        echo "$local_port_id -> $remote_hostname -> $remote_port \n";
    }

    if (!$link_exists[$local_port_id][$remote_hostname][$remote_port]) {
        echo '-';
        $rows = dbDelete('links', '`id` = ?', array($test['id']));
        if ($debug) {
            echo "$rows deleted ";
        }
    }
}

unset($link_exists);
echo "\n";