<?php

// FIXME -- we're walking, so we can discover here too.

if ($device['os_group'] == "cisco")
{
  $cip_oids = array('cipMacHCSwitchedBytes', 'cipMacHCSwitchedPkts');
  echo("Cisco MAC - Caching OID: ");
  $cip_array = array();

  foreach ($cip_oids as $oid)
  {
    echo("$oid ");
    $cip_array = snmpwalk_cache_cip($device, $oid, $cip_array, "CISCO-IP-STAT-MIB");
  }

  $polled = time();

  $mac_entries = 0;

  $acc_rows = dbFetchRows("SELECT *, A.poll_time AS poll_time FROM `mac_accounting` as A, `ports` AS I where A.port_id = I.port_id AND I.device_id = ?", array($device['device_id']));

  foreach ($acc_rows as $acc)
  {
    $device_id = $acc['device_id'];
    $ifIndex = $acc['ifIndex'];
    $mac = $acc['mac'];

    $polled_period = $polled - $acc['poll_time'];

    if ($cip_array[$ifIndex][$mac])
    {
      $acc['update']['poll_time'] = $polled;
      $acc['update']['poll_prev'] = $acc['poll_time'];
      $acc['update']['poll_period'] = $polled_period;

      $mac_entries++;

      $b_in = $cip_array[$ifIndex][$mac]['cipMacHCSwitchedBytes']['input'];
      $b_out = $cip_array[$ifIndex][$mac]['cipMacHCSwitchedBytes']['output'];
      $p_in = $cip_array[$ifIndex][$mac]['cipMacHCSwitchedPkts']['input'];
      $p_out = $cip_array[$ifIndex][$mac]['cipMacHCSwitchedPkts']['output'];

      $this_ma = &$cip_array[$ifIndex][$mac];

      // Update metrics
      foreach ($cip_oids as $oid)
      {
        foreach (array('input','output') as $dir)
        {
          $oid_dir = $oid . "_" . $dir;
          $acc['update'][$oid_dir] = $this_ma[$oid][$dir];
          $acc['update'][$oid_dir.'_prev'] = $acc[$oid_dir];
          $oid_prev = $oid_dir . "_prev";
          if ($this_ma[$oid][$dir])
          {
            $oid_diff = $this_ma[$oid][$dir] - $acc[$oid_dir];
            $oid_rate  = $oid_diff / $polled_period;
            $acc['update'][$oid_dir.'_rate'] = $oid_rate;
            $acc['update'][$oid_dir.'_delta'] = $oid_diff;
            if ($debug) { echo("\n $oid_dir ($oid_diff B) $oid_rate Bps $polled_period secs\n"); }
          }
        }
      }

      if ($debug) { echo("\n" . $acc['hostname']." ".$acc['ifDescr'] . "  $mac -> $b_in:$b_out:$p_in:$p_out "); }

      $rrdfile = $config['rrd_dir'] . "/" . $device['hostname'] . "/" . safename("cip-" . $acc['ifIndex'] . "-" . $acc['mac'] . ".rrd");

      if (!is_file($rrdfile))
      {
        rrdtool_create($rrdfile,"DS:IN:COUNTER:600:0:12500000000 \
          DS:OUT:COUNTER:600:0:12500000000 \
          DS:PIN:COUNTER:600:0:12500000000 \
          DS:POUT:COUNTER:600:0:12500000000 " . $config['rrd_rra']);
      }

      // FIXME - use memcached to make sure these values don't go backwards?
      $rrdupdate = array($b_in, $b_out, $p_in, $p_out);
      rrdtool_update($rrdfile, $rrdupdate);

      if ($acc['update'])
      { // Do Updates
        dbUpdate($acc['update'], 'mac_accounting', '`ma_id` = ?', array($acc['ma_id']));
      } // End Updates
    }
  }

  unset($cip_array);

  if ($mac_entries) { echo(" $mac_entries MAC accounting entries\n"); }

  echo("\n");
}

?>