#!/usr/bin/php -q
<?php
#
#    Program : check_esx_networkperformance_TxQOvQ.php
#            :
#     Author : Karim vaes <kvaes@vangenechten.com>
#            :
#    Purpose : Check how the ESX's network performance
#	     :
#	Info : http://www.vmware.com/support/kb/enduser/std_adp.php?p_faqid=1428
#            :
#      Notes : No Support Given
#	     : 1.0 - be sure to enter a trailing slash for the directory
#============:==============================================================
#        1.0 : 07/04/2006
#            : Initial coding
//PARAMS
$ARG1 = $argv[1];
$ARG2 = $argv[2];
$ARG3 = $argv[3];
$ARG4 = $argv[4];

//DEFAULTS
if ($ARG3 == "") { $ARG3 = 5000;}
if ($ARG4 == "") { $ARG4 = 10000;}

//FUNCTIONS
function perf($ARG1,$ARG2,$ARG3,$ARG4) {
  // GET THE RXQQV VALUE ON THE REMOTE SYSTEM
  $COMMAND="/usr/bin/ssh -x -q -l root $ARG1 cat /proc/vmware/net/$ARG2 | grep Remote";
  exec($COMMAND,$OUTPUT,$ERROR);
  if ($ERROR <> 0) { echo "WARN - Permission Error - check authorized_keys or NIC not present"; exit(0);}
  $output = str_replace("Remote:  ", "",$OUTPUT[0]);
  $TxQOvQ = trim(substr($output, 110, 11));

  //DEFINE THE TEMP STORAGE FILENAME
  $ARG2 = str_replace("/", "", $ARG2);
  $ARG2 = str_replace(":", "", $ARG2);
  $filename = "./$ARG2$ARG1.TxQOvQ";
  
  //GET PREVIOUS VALUE
  $OUTPUT="";
  $COMMAND="cat $filename";
  exec($COMMAND,$OUTPUT,$ERROR);
  $previous = $OUTPUT[0];

  //WRITE THE CURRENT VALUE
  $fp = fopen($filename, 'w') or exit(2);
  fwrite($fp,"$TxQOvQ");
  fclose($fp);

  //CALC DIFFERENCE
  $diff = $TxQOvQ - $previous;
  
  //CHECKUPTIME
  switch (TRUE) {
      case ($diff > $ARG4):
       echo "CRITICAL - TxQOvQ($TxQOvQ)";
       exit(2);
       break;
      case ($diff > $ARG3):
       echo "WARNING - TxQOvQ($TxQOvQ)";
       exit(1);
       break;
      case ($diff < $ARG3):
       echo "OKAY - TxQOvQ($TxQOvQ)";
       exit(0);
       break;
      default:
       echo "Something odd!";
       exit(2);
  }
}
function help() {
  echo "check_esx_networkperformance.php %SERVER     :  perf check\n";
  echo "check_esx_networkperformance.php HELP        :  this text\n";
  exit(2);
}

//MAIN
switch (TRUE) {
  case ($ARG1 <> ""):
   perf($ARG1,$ARG2,$ARG3,$ARG4);
   break;
  default:
   help();
}
?>