Plugin:check centreon snmp remote storage


 * 1) ! /usr/bin/perl -w
 * 2) Copyright 2004-2013 MERETHIS
 * 3) Centreon is developped by : Julien Mathis and Romain Le Merlus under
 * 4) GPL Licence 2.0.
 * 5) This program is free software; you can redistribute it and/or modify it under
 * 6) the terms of the GNU General Public License as published by the Free Software
 * 7) Foundation ; either version 2 of the License.
 * 8) This program is distributed in the hope that it will be useful, but WITHOUT ANY
 * 9) WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 * 10) PARTICULAR PURPOSE. See the GNU General Public License for more details.
 * 11) You should have received a copy of the GNU General Public License along with
 * 12) this program; if not, see .
 * 13) Linking this program statically or dynamically with other modules is making a
 * 14) combined work based on this program. Thus, the terms and conditions of the GNU
 * 15) General Public License cover the whole combination.
 * 16) As a special exception, the copyright holders of this program give MERETHIS
 * 17) permission to link this program with independent modules to produce an executable,
 * 18) regardless of the license terms of these independent modules, and to copy and
 * 19) distribute the resulting executable under terms of MERETHIS choice, provided that
 * 20) MERETHIS also meet, for each linked independent module, the terms  and conditions
 * 21) of the license of that module. An independent module is a module which is not
 * 22) derived from this program. If you modify this program, you may extend this
 * 23) exception to your version of the program, but you are not obliged to do so. If you
 * 24) do not wish to do so, delete this exception statement from your version.
 * 25) For more information : contact@centreon.com
 * 26) SVN : $URL$
 * 27) SVN : $Id$
 * 28) Script init
 * 1) exception to your version of the program, but you are not obliged to do so. If you
 * 2) do not wish to do so, delete this exception statement from your version.
 * 3) For more information : contact@centreon.com
 * 4) SVN : $URL$
 * 5) SVN : $Id$
 * 6) Script init
 * 1) SVN : $Id$
 * 2) Script init
 * 1) Script init
 * 1) Script init
 * 1) Script init

use strict; require "/usr/lib/nagios/plugins/Centreon/SNMP/Utils.pm";

use vars qw($PROGNAME); use Getopt::Long; use vars qw($opt_V $opt_t $opt_h $opt_f $opt_d $opt_n $opt_w $opt_c $opt_s $opt_L $opt_M $opt_a @test);

my %ERRORS = ('OK' => 0, 'WARNING' => 1, 'CRITICAL' => 2, 'UNKNOWN' => 3);

my %centreon = Centreon::SNMP::Utils::load_oids($ERRORS{'UNKNOWN'}, "/usr/lib/nagios/plugins/centreon.conf");


 * 1) Plugin var init

my ($hrStorageDescr, $hrStorageAllocationUnits, $hrStorageSize, $hrStorageUsed, $hrStorageLabel); my ($AllocationUnits, $Size, $Used); my ($tot, $used, $pourcent, $return_code);

$PROGNAME = "$0"; sub print_help ; sub print_usage ;

my %OPTION = (   "host" => undef,    "snmp-community" => "public", "snmp-version" => 1, "snmp-port" => 161,     "snmp-auth-key" => undef, "snmp-auth-user" => undef, "snmp-auth-password" => undef, "snmp-auth-protocol" => "MD5",    "snmp-priv-key" => undef, "snmp-priv-password" => undef, "snmp-priv-protocol" => "DES",    "maxrepetitions" => undef, "snmptimeout" => undef,    "64-bits" => undef, );

Getopt::Long::Configure('bundling'); GetOptions (   "H|hostname|host=s"         => \$OPTION{'host'},    "C|community=s"             => \$OPTION{'snmp-community'},    "v|snmp|snmp-version=s"     => \$OPTION{'snmp-version'},    "P|snmpport|snmp-port=i"    => \$OPTION{'snmp-port'},    "u|username=s"              => \$OPTION{'snmp-auth-user'},    "p|authpassword|password=s" => \$OPTION{'snmp-auth-password'},    "k|authkey=s"               => \$OPTION{'snmp-auth-key'},    "authprotocol=s"            => \$OPTION{'snmp-auth-protocol'},    "privpassword=s"            => \$OPTION{'snmp-priv-password'},    "privkey=s"                 => \$OPTION{'snmp-priv-key'},    "privprotocol=s"            => \$OPTION{'snmp-priv-protocol'},    "maxrepetitions=s"          => \$OPTION{'maxrepetitions'},    "snmp-timeout=i"            => \$OPTION{'snmptimeout'},    "64-bits"                   => \$OPTION{'64-bits'},

"h"  => \$opt_h, "help"         => \$opt_h, "V"  => \$opt_V, "version"      => \$opt_V, "s"  => \$opt_s, "show"         => \$opt_s, "d=s" => \$opt_d, "disk=s"      => \$opt_d, "n"  => \$opt_n, "name"         => \$opt_n, "w=s" => \$opt_w, "warning=s"   => \$opt_w, "c=s" => \$opt_c, "critical=s"  => \$opt_c, "L"  => \$opt_L, "label"        => \$opt_L, "a=s" => \$opt_a, "cache=s"   => \$opt_a, "M"  => \$opt_M, "t=s" => \$opt_t);

if ($opt_V) { print_revision($PROGNAME,'$Revision: 1.3 $'); exit $ERRORS{'OK'}; } if ($opt_h) { print_help; exit $ERRORS{'OK'}; }

my $partition = 0; if (!defined($opt_s)) { if (!defined($opt_d)) { print "Option -d (--disk) needed\n"; exit $ERRORS{'UNKNOWN'}; }   if ($opt_d =~ /([0-9]+)/ && !defined($opt_n)) { $partition = $1; } elsif (!$opt_n){ print "Unknown -d: number expected... try another disk - number\n"; exit $ERRORS{'UNKNOWN'}; }   if (defined($opt_n) && !defined($opt_d)) { print "Option -n (--name) need option -d (--disk)\n"; exit $ERRORS{'UNKNOWN'}; } }

$opt_a = 3 if (!$opt_a);

if (!$opt_c) { $opt_c = 95; } if (!$opt_w) { $opt_w = 90; }

my $criticalMB = 0; my $warningMB = 0;
 * 1) this are boolean variables to see if --warn or --crit were set in MB/GB
 * 2) --warn and --crit values will be stored in $warning and $critical variables
 * 3) if they are set in GB they are converted to MB

my $critical = 95; if ($opt_c && $opt_c =~ /^[0-9]+$/) { $critical = $opt_c; } if ($opt_c && $opt_c =~ /^([0-9]+)(.)[Bb]$/) { $criticalMB = 1; $critical = $1; ($critical = $critical * 1024) if $2 =~ /[Gg]/ ; }

my $warning = 90; if ($opt_w && $opt_w =~ /^[0-9]+$/) { $warning = $opt_w; } if ($opt_w && $opt_w =~ /^([0-9]+)(.)[Bb]$/) { $warningMB = 1; $warning = $1; ($warning = $warning * 1024) if $2 =~ /[Gg]/ ; }

if ($criticalMB == $warningMB) { if ($criticalMB && ($critical >= $warning)) { print "(--crit) must be inferior to (--warn) when using absolute size"; print_usage; exit $ERRORS{'OK'}; }    if (!$criticalMB && ($critical <= $warning)) { print "(--crit) must be superior to (--warn)"; print_usage; exit $ERRORS{'OK'}; } } else { print "(--crit) and (--warn) must both use either percent or absolute sizes"; print_usage; exit $ERRORS{'OK'}; }
 * 1) If one of the warning/critical thresholds is set in MB/GB and the other in percent the check will fail
 * 2) if both are percent or storage size the check will be performed in different ways
 * 3) percent applies to used space so --crit must be higher than --warn
 * 4) MB applies to free space so --crit must be lower than --warn

my $name = $0; $name =~ s/\.pl.*//g;

my $OID_hrStorageDescr = ""; if (defined($opt_t) && ($opt_t eq "AIX" || $opt_t eq "AS400")) { $OID_hrStorageDescr = ".1.3.6.1.2.1.25.3.8.1.2"; } else { $OID_hrStorageDescr = $centreon{MIB2}{HR_STORAGE_DESCR}; } my $OID_hrStorageAllocationUnits = $centreon{MIB2}{HR_STORAGE_ALLOCATION_UNITS}; my $OID_hrStorageSize = $centreon{MIB2}{HR_STORAGE_SIZE}; my $OID_hrStorageUsed = $centreon{MIB2}{HR_STORAGE_USED};
 * 1) Plugin snmp requests

my ($session_params) = Centreon::SNMP::Utils::check_snmp_options($ERRORS{'UNKNOWN'}, \%OPTION); my $session = Centreon::SNMP::Utils::connection($ERRORS{'UNKNOWN'}, $session_params);

my $cacheFile = "/var/lib/centreon/centplugins/remote_storage_cache_". $OPTION{'host'}; my $result; my $mustCreateFile = 0; my $row; my $countLine;

if (-e $cacheFile) { my $one_line = 0; open(FILE,"<".$cacheFile); $row = ; if (defined($row)) { chomp $row; my $deltaTime = time - $row; if ($deltaTime > ($opt_a * 3600)) { $mustCreateFile = 1; }       $one_line = 1 if (!); }   close(FILE); # Manage file empty or line 1 empty if (!defined($row) || $row eq '' || $one_line == 1) { $mustCreateFile = 1; } } else { $mustCreateFile = 1; }
 * 1) Cache File exists, lets read it
 * 1) Cache File exists, lets read it

if ($mustCreateFile) { $result = Centreon::SNMP::Utils::get_snmp_table($OID_hrStorageDescr, $session, $ERRORS{'UNKNOWN'}, \%OPTION); unless (open(FILE,">".$cacheFile)){ print "Check mod for temporary file : ".$cacheFile."...\n"; exit $ERRORS{"UNKNOWN"}; }   my $currentTime = time; my $first = 0; foreach my $key (oid_lex_sort(keys %$result)) { if (defined($opt_t) && $opt_t eq "AS400"){ $result->{$key} =~ s/\ //g; }               my @oid_list = split (/\./,$key); my $partitionIndex = pop (@oid_list); if ($first == 0) { print FILE $currentTime."\n"; $first = 1; }       print FILE $partitionIndex.";".$result->{$key}."\n"; }   close(FILE); }

if ($opt_n) { if (!-e $cacheFile) { printf("ERROR: Could not open " . $cacheFile); exit $ERRORS{'UNKNOWN'}; }
 * 1) getting partition using its name instead of its oid index

my $expr = ""; my $case_sensitive = 1; if ($opt_d =~ m/^[A-Za-z]:/i) { $opt_d =~ s/\\/\\\\/g; $expr = "^$opt_d"; } elsif ($opt_d =~ m/^\//) { $expr = "^$opt_d\$"; } else { $case_sensitive = 0; $expr = "$opt_d"; }   open(FILE,"<".$cacheFile); $countLine = 0; while ($row = ){ chomp $row; if ($countLine) { my @resLine = split(/\;/, $row); if ($case_sensitive == 1 && $resLine[1] =~ /$expr/) { $partition = $resLine[0]; } elsif ($case_sensitive == 0 && $resLine[1] =~ /$expr/i) { $partition = $resLine[0]; }       }        $countLine++; }   close(FILE); }

if ($opt_s) { if (!-e $cacheFile) { printf("ERROR: Could not open " . $cacheFile); exit $ERRORS{'UNKNOWN'}; }

open(FILE,"<".$cacheFile); $countLine = 0; while ($row = ){ if ($countLine) { my @resLine = split(/\;/, $row); print "hrStorage ".$resLine[0]." :: ".$resLine[1]; }       $countLine++; }   close(FILE); exit $ERRORS{'OK'}; }

$result = Centreon::SNMP::Utils::get_snmp_leef([$OID_hrStorageDescr.".".$partition,                                               $OID_hrStorageAllocationUnits.".".$partition,                                                $OID_hrStorageSize.".".$partition,                                                $OID_hrStorageUsed.".".$partition                                                ], $session, $ERRORS{'UNKNOWN'},                                                defined($opt_n) ? " Cases: 1) SNMP not working. 2) specify the disk name when option -n is used. 3) Disk not exist. 4) Delete cache file '$cacheFile' (maybe corrupted)" : undef);

$hrStorageDescr =  $result->{$OID_hrStorageDescr.".".$partition }; $AllocationUnits =  $result->{$OID_hrStorageAllocationUnits.".".$partition }; $Size =  $result->{$OID_hrStorageSize.".".$partition }; $Used =  $result->{$OID_hrStorageUsed.".".$partition };

$hrStorageLabel = $hrStorageDescr; if ($hrStorageDescr =~ /Label:(.*) Serial Number/) { $hrStorageLabel = $1; } else { $hrStorageLabel = ''; }


 * 1) Plugins var treatmen

if (!$Size){ print "Disk CRITICAL - no output (-p number expected... it doesn't exist, try another disk number)\n"; exit $ERRORS{'CRITICAL'}; }

if (($Size =~ /([0-9]+)/) && ($AllocationUnits =~ /([0-9]+)/)){

if ($hrStorageDescr =~ /\:/){ my @tab = split(/\:/, $hrStorageDescr); $hrStorageDescr = $tab[0]. ":";   }

if (!$Size){ print "The number of the option -p is not a hard drive\n"; exit $ERRORS{'CRITICAL'}; }   $tot = 1; $tot = $Size * $AllocationUnits; if (!$tot) { $tot = 1; }   $used = $Used * $AllocationUnits; $pourcent = ($used * 100) / $tot;

if (length($pourcent) > 2){ @test = split (/\./, $pourcent); $pourcent = $test[0]; }   my $totMB = $tot / 1048576; my $usedMB = $used / 1048576; my $freeMB = $totMB - $usedMB; my $totGB = $totMB / 1024; my $usedGB = $usedMB / 1024; my $freeGB = $freeMB / 1024; # Plugin return code if ($criticalMB ? ($freeMB <= $critical) : ($pourcent >= $critical)) { print "Disk CRITICAL - "; $return_code = 2; } elsif ($warningMB ? ($freeMB <= $warning) : ($pourcent >= $warning)) { print "Disk WARNING - "; $return_code = 1; } else { print "Disk OK - "; $return_code = 0; }

if ($hrStorageDescr){ $hrStorageDescr =~ s/\ //g if (defined($opt_t) && $opt_t eq "AS400"); my $warn; my $crit; $warn = $warningMB ? $tot-$warning*1024*1024 : int($warning * $tot / 100); $crit = $criticalMB ? $tot-$critical*1024*1024 : int($critical * $tot / 100); if ($opt_M) { printf($hrStorageDescr . " TOTAL: %dMB USED: %dMB (%d%%) FREE: %dMB (%d%%)", $totMB, $usedMB, $pourcent, $freeMB, 100-$pourcent ); } else { printf($hrStorageDescr . " TOTAL: %.3fGB USED: %.3fGB (%d%%) FREE: %.3fGB (%d%%)", $totGB, $usedGB, $pourcent, $freeGB, 100-$pourcent ); }       if ($opt_L) { print " - ".$hrStorageLabel; }       print "|size=".$tot."B used=".$used."B;".$warn.";".$crit.";0;".$tot."\n"; exit $return_code; } else { printf("TOTAL: %.3fGB USED: %.3fGB (%d%%)", $totMB, $usedMB, $pourcent ); exit $return_code; } } else { print "Disk CRITICAL - no output (-d number expected... it doesn't exist, try another disk number)\n"; exit $ERRORS{'CRITICAL'}; }

sub print_usage { print "\nUsage:\n"; print "$PROGNAME\n"; print "  -H (--hostname)   Hostname to query (required)\n"; print "  -C (--community)  SNMP read community (defaults to public)\n"; print "                    used with SNMP v1 and v2c\n"; print "  -v (--snmp-version)  1 for SNMP v1 (default)\n"; print "                       2 for SNMP v2c\n"; print "                       3 for SNMP v3\n"; print "  -P (--snmp-port)  SNMP port (default: 161)\n"; print "  -k (--authkey)    snmp V3 key\n"; print "  -u (--username)   snmp V3 username \n"; print "  -p (--password)   snmp V3 password\n"; print "  --authprotocol    protocol MD5/SHA  (v3)\n"; print "  --privprotocol    encryption system (DES/AES)(v3) \n"; print "  --privpassword    passphrase (v3) \n"; print "  --64-bits         Use 64 bits OID\n"; print "  --maxrepetitions  To use when you have the error: 'Message size exceeded buffer maxMsgSize'\n"; print "                    Work only with SNMP v2c and v3 (Example: --maxrepetitions=1)\n"; print "  --snmp-timeout    SNMP Timeout\n"; print "  -d (--disk)       Set the disk (number expected) ex: 1, 2,... (default: 2 )\n"; print "  -n (--name)       Allows to use disk name with option -d instead of disk oid index\n"; print "                    (ex: -d \"C:\" -n, -d \"E:\" -n, -d \"Swap Memory\" -n, -d \"Real Memory\" -n\n";    print "                     (choose an unique expression for each disk)\n";    print "   -s (--show)       Lists all disks (debug mode)\n";    print "   -w (--warn)       Minimum fill level at which a warning message will be generated\n";    print "                     (default 80)\n";    print "                     By using the optional suffixes MB/GB the argument is interpreted as absolute size \n";    print "                     and it becomes a threshold for free space. (ex. 100MB; 3GB)\n";    print "   -c (--crit)       Minimum fill level at which a critical message will be generated\n";    print "                     (default 95)\n";    print "                     By using the optional suffixes MB/GB the argument is interpreted as absolute size \n";    print "                     and it becomes a threshold for free space. (ex. 50MB; 1GB)\n";   print "                     ex.: -w 1GB -c 256MB generates a warning when free space reaches 1GB\n";    print "                          and critical when there are less than 256MB left\n";    print "   -V (--version)    Plugin version\n";    print "   -L                add Windows drive label to output\n";    print "   -M                Shows the size in output in MB instead of GB\n";    print "   -t                To use for AIX or AS/400 (ex. 'AIX' or 'AS/400')\n";    print "   -a (--cache)      Updates cache file every n hours instead of doing snmpwalk for every check (default: 3)\n";    print "   -h (--help)       usage help\n";

}

sub print_help { print "##############################################\n"; print "#   Copyright (c) 2004-2013 Centreon        #\n"; print "#   Bugs to http://forge.centreon.com/      #\n"; print "##############################################\n"; print_usage; print "\n"; }