librenms-librenms/includes/polling/wifi.inc.php

<?php

if ($device['type'] == 'network' || $device['type'] == 'firewall')
{
  echo("Wireless: ");

  ##### GENERIC FRAMEWORK, FILLING VARIABLES
  if ($device['os'] == 'airport')
  {
    echo("Checking Airport Wireless clients... ");

    $wificlients1 = snmp_get($device, "wirelessNumber.0", "-OUqnv", "AIRPORT-BASESTATION-3-MIB") +0;

    echo($wificlients1 . " clients\n");

    # FIXME Also interesting to poll? dhcpNumber.0 for number of active dhcp leases
  }

  if ($device['os'] == 'ios' and substr($device['hardware'],0,4) == 'AIR-')
  {
    echo("Checking Aironet Wireless clients... ");

    $wificlients1 = snmp_get($device, "cDot11ActiveWirelessClients.1", "-OUqnv", "CISCO-DOT11-ASSOCIATION-MIB");
    $wificlients2 = snmp_get($device, "cDot11ActiveWirelessClients.2", "-OUqnv", "CISCO-DOT11-ASSOCIATION-MIB");

    echo(($wificlients1 +0) . " clients on dot11Radio0, " . ($wificlients2 +0) . " clients on dot11Radio1\n");
  }

  #MikroTik RouterOS
  if ($device['os'] == 'routeros')
  {
    # Check inventory for wireless card in device. Valid types be here:
    $wirelesscards = array('Wireless', 'Atheros');
    foreach ($wirelesscards as $wirelesscheck)
    {
      if (dbFetchCell("SELECT COUNT(*) FROM `entPhysical` WHERE `device_id` = ?AND `entPhysicalDescr` LIKE ?", array($device['device_id'], "%".$wirelesscheck."%")) >= "1")
      {
        echo("Checking RouterOS Wireless clients... ");

        $wificlients1 = snmp_get($device, "mtxrWlApClientCount", "-OUqnv", "MIKROTIK-MIB");

        echo(($wificlients1 +0) . " clients\n");
        break;
      }
      unset($wirelesscards);
    }
  }

  if ($device['os'] == 'symbol' AND (stristr($device['hardware'],"AP")))
  {
    echo("Checking Symbol Wireless clients... ");

    $wificlients1 = snmp_get($device, ".1.3.6.1.4.1.388.11.2.4.2.100.10.1.18.1", "-Ovq", "\"\"");

    echo(($wificlients1 +0) . " clients on wireless connector, ");
  }

  ##### RRD Filling Code
  if (isset($wificlients1) && $wificlients1 != "")
  {
    $wificlientsrrd  = $config['rrd_dir'] . "/" . $device['hostname'] . "/" . safename("wificlients-radio1.rrd");

    if (!is_file($wificlientsrrd))
    {
      rrdtool_create($wificlientsrrd,"--step 300 \
     DS:wificlients:GAUGE:600:-273:1000 ".$config['rrd_rra']);
    }

    rrdtool_update($wificlientsrrd,"N:".$wificlients1);

    $graphs['wifi_clients'] = TRUE;
  }

  if (isset($wificlients2) && $wificlients2 != "")
  {
    $wificlientsrrd  = $config['rrd_dir'] . "/" . $device['hostname'] . "/" . safename("wificlients-radio2.rrd");

    if (!is_file($wificlientsrrd))
    {
      rrdtool_create($wificlientsrrd,"--step 300 \
     DS:wificlients:GAUGE:600:-273:1000 ".$config['rrd_rra']);
    }

    rrdtool_update($wificlientsrrd,"N:".$wificlients2);

    $graphs['wifi_clients'] = TRUE;
  }

  unset($wificlients2, $wificlients1);
}

echo("\n");

?>