librenms-librenms/includes/discovery/cisco-mac-accounting.inc.php

<?php

if ($device['os_group'] == 'cisco') {
    $datas = shell_exec($config['snmpbulkwalk'].' -M '.$config['mibdir'].' -m CISCO-IP-STAT-MIB -Oqn '.snmp_gen_auth($device).' '.$device['hostname'].' cipMacSwitchedBytes');
    // echo("$datas\n");
    // echo("done\n");
    foreach (explode("\n", $datas) as $data) {
        list($oid) = explode(' ', $data);
        $oid       = str_replace('.1.3.6.1.4.1.9.9.84.1.2.1.1.4.', '', $oid);
        list($if, $direction, $a_a, $a_b, $a_c, $a_d, $a_e, $a_f) = explode('.', $oid);
        $oid = "$a_a.$a_b.$a_c.$a_d.$a_e.$a_f";
        unset($interface);
        $interface = dbFetchRow('SELECT * FROM `ports` WHERE `device_id` = ? AND `ifIndex` = ?', array($device['device_id'], $if));
        $ah_a      = zeropad(dechex($a_a));
        $ah_b      = zeropad(dechex($a_b));
        $ah_c      = zeropad(dechex($a_c));
        $ah_d      = zeropad(dechex($a_d));
        $ah_e      = zeropad(dechex($a_e));
        $ah_f      = zeropad(dechex($a_f));
        $mac       = "$ah_a:$ah_b:$ah_c:$ah_d:$ah_e:$ah_f";
        $mac_cisco = "$ah_a$ah_b.$ah_c$ah_d.$ah_e$ah_f";
        $mac_cisco = $mac_table[$if][$mac]['ciscomac'];
        $clean_mac = $mac_table[$if][$mac]['cleanmac'];
        $ip        = $mac_table[$if][$mac]['ip'];
        if ($ip && $interface) {
            $new_mac = str_replace(':', '', $mac);
            // echo($interface['ifDescr'] . " ($if) -> $mac ($oid) -> $ip");
            if (dbFetchCell('SELECT COUNT(*) from mac_accounting WHERE port_id = ? AND mac = ?', array($interface['port_id'], $clean_mac))) {
                // $sql = "UPDATE `mac_accounting` SET `mac` = '$clean_mac' WHERE port_id = '".$interface['port_id']."' AND `mac` = '$clean_mac'";
                // mysql_query($sql);
                // if (mysql_affected_rows()) { echo("      UPDATED!"); }
                // echo($sql);
                echo '.';
            } else {
                // echo("      Not Exists!");
                dbInsert(array('port_id' => $interface['port_id'], 'mac' => $clean_mac), 'mac_accounting');
                echo '+';
            }

            // echo("\n");
        }
    }//end foreach

    echo "\n";
} //end if

// FIXME - NEEDS TO REMOVE STALE ENTRIES?? :O