<?php

$uptime = snmp_get($device, "sysUpTime.0", "-Otv");
$time_offset = time() - intval($uptime) / 100;

$slavals = snmp_walk($device, "ciscoRttMonMIB.ciscoRttMonObjects.rttMonCtrl.rttMonLatestRttOperTable", "-OUsqt", "+CISCO-RTTMON-MIB");

$sla_table = array();
foreach (explode("\n", $slavals) as $sla) {
  $key_val = explode(" ", $sla, 2);
  if (count($key_val) != 2)
    $key_val[] = "";

  $key = $key_val[0];
  $value = $key_val[1];

  $prop_id = explode(".", $key);
  if ((count($prop_id) != 2) || !ctype_digit($prop_id[1]))
    continue;

  $property = str_replace("rttMonLatestRttOper", "", $prop_id[0]);
  $id = intval($prop_id[1]);

  $sla_table[$id][$property] = trim($value);
}

// Update timestamps
foreach ($sla_table as &$sla)
{
  $sla['UnixTime'] = intval($sla['Time'] / 100 + $time_offset);
  $sla['TimeStr'] = strftime("%Y-%m-%d %H:%M:%S", $sla['UnixTime']);
}
unset($sla);

foreach (dbFetchRows("SELECT * FROM `slas` WHERE `device_id` = ? AND `deleted` = 0 AND `status` = 1", array($device['device_id'])) as $sla)
{
  echo("SLA " . $sla['sla_nr'] . ": " . $sla['rtt_type'] . " " . $sla['owner'] . " " . $sla['tag']. "... ");

  $slarrd  = $config['rrd_dir'] . "/" . $device['hostname'] . "/" . safename("sla-" . $sla['sla_nr'] . ".rrd");

  if (!is_file($slarrd))
  {
    rrdtool_create($slarrd, "--step 300 \
     DS:rtt:GAUGE:600:0:300000 ".$config['rrd_rra']);
  }

  if (isset($sla_table[$sla['sla_nr']]))
  {
    $slaval = $sla_table[$sla['sla_nr']];
    echo($slaval['CompletionTime'] . "ms at " . $slaval['TimeStr']);
    $ts = $slaval['UnixTime'];
    $val = $slaval['CompletionTime'];
  }
  else
  {
    echo("NaN");
    $ts = 'N';
    $val = 'U';
  }
  rrdtool_update($slarrd,$ts.":".$val);
  echo("\n");
}

?>
