contrib/check_hprsc.pl

   1 #!/usr/bin/perl -wT
   2 #
   3 # Copyright (c) 2000 Hugo Gayosso
   4 #
   5 # Description:
   6 #    Nagios plug-in that monitors the resources on an HP-UX machine
   7 #    by querying the SNMP daemon
   8 #
   9 # License: General Public License (GPL)
  10 #          http://www.gnu.org/copyleft/gpl.txt
  11 #
  12 # ChangeLog
  13 #
  14
  15 # Requirements: Perl 5.005 or higher
  16
  17 # Variable initialization
  18 $ENV{'PATH'}="";
  19 $ENV{'ENV'}="";
  20 $ENV{'BASH_ENV'}="";
  21
  22
  23 if (-e "/usr/bin/snmpwalk") {
  24   $snmpwalk = "/usr/bin/snmpwalk";
  25 } elsif (-e "/usr/local/bin/snmpwalk") {
  26   $snmpwalk = "/usr/local/bin/snmpwalk";
  27 }
  28
  29
  30 # HP-UX SNMP OIDs
  31 $filesystemID1_OID   = ".1.3.6.1.4.1.11.2.3.1.2.2.1.1";
  32 $mounted_OID         = ".1.3.6.1.4.1.11.2.3.1.2.2.1.3";
  33 $totalspace_OID      = ".1.3.6.1.4.1.11.2.3.1.2.2.1.4";
  34 $freespace_OID       = ".1.3.6.1.4.1.11.2.3.1.2.2.1.6";
  35 $path_OID            = ".1.3.6.1.4.1.11.2.3.1.2.2.1.10";
  36 $cpu_5min_OID        = ".1.3.6.1.4.1.11.2.3.1.1.4";
  37
  38 use Getopt::Long;
  39
  40 GetOptions( "check-filesystem"   => \$chk_fs,
  41             "show-filesystems"   => \$show_fs,
  42             "check-filesystemID" => \$chk_fsid,
  43             "check-cpu"          => \$chk_cpu,
  44             "host=s"             => \$target_host,
  45             "community=s"        => \$target_community,
  46             "filesystemID1=i"    => \$fsid1_opt,
  47             "filesystem=s"       => \$fs_opt,
  48             "protocol:s"          => \$proto_opt,
  49             "warning=i"          => \$warning_opt,
  50             "critical=i"         => \$critical_opt);
  51
  52 $proto_opt = 1
  53   unless $proto_opt == 1        ||
  54          $proto_opt == '2c'     ||
  55          $proto_opt == 3;
  56
  57 if ($chk_fs) {
  58     walk_data($snmpwalk, $target_host, $target_community, $mounted_OID,$proto_opt );
  59     walk_data($snmpwalk, $target_host, $target_community, $totalspace_OID,$proto_opt );
  60     walk_data($snmpwalk, $target_host, $target_community, $freespace_OID,$proto_opt );    check_filesystem($fs_opt, $warning_opt, $critical_opt);
  61 } elsif ($show_fs) {
  62     walk_data($snmpwalk, $target_host, $target_community, $filesystemID1_OID,$proto_opt);
  63     walk_data($snmpwalk, $target_host, $target_community, $mounted_OID,$proto_opt );
  64     walk_data($snmpwalk, $target_host, $target_community, $path_OID,$proto_opt);
  65     show_filesystem();
  66 } elsif ($chk_fsid){
  67     $totalspace_fsID_OID = "$totalspace_OID.$fsid1_opt";
  68     $freespace_fsID_OID = "$freespace_OID.$fsid1_opt";
  69     walk_data($snmpwalk, $target_host, $target_community, $totalspace_fsID_OID,$proto_opt);
  70     walk_data($snmpwalk, $target_host, $target_community, $freespace_fsID_OID,$proto_opt);
  71     check_filesystemID1($fsid1_opt, $warning_opt, $critical_opt);
  72 } elsif ($chk_cpu) {
  73     get_cpu_load($snmpwalk, $target_host, $target_community, $cpu_5min_OID,$proto_opt);
  74     check_cpu_5min($cpu, $warning_opt, $critical_opt);
  75 } else {
  76     print "\n\nUsage:\n";
  77     print "Checking 5-min CPU Load:\n";
  78     print "     $0 --check-cpu -warning <threshold> --critical <threshold> --host <yourhost> --community <SNMP community> --protocol <SNMP version [1|2c|3]>\n\n";
  79     print "Checking local filesystem mounted on a host:\n";
  80     print "     $0 --show-filesystems --host <hostname> --community <SNMP community> --protocol <SNMP version [1|2c|3]>\n\n";
  81     print "Checking by filesystem name:\n";
  82     print "     $0 --check-filesystem --filesystem </dev/vg00/lvol1> --warning <% used space> --critical <% used space> --host <hostname> --community <SNMP community> --protocol <SNMP version [1|2c|3]>\n\n";
  83     print "Checking by filesystem ID:\n";
  84     print "     $0 --check-filesystemID --filesystemID <filesystemID1> --warning <% used space> --critical <% used space> --host <hostname> --community <SNMP community> --protocol <SNMP version [1|2c|3]>\n\n";
  85 }
  86
  87 sub get_cpu_load {
  88     my ($snmpwalk, $target_host, $target_community, $OID,$vers) = @_;
  89     die "cannot fork: $!" unless defined($pid = open(SNMPWALK, "-|"));
  90
  91     if ($pid) {   # parent
  92         while (<SNMPWALK>) {
  93             my @snmpdata = split(/:/,$_);
  94             $cpu = $snmpdata[1]/100;
  95         }
  96         close(SNMPWALK) or warn "kid exited $?";
  97     } else {      # child
  98         exec($snmpwalk,'-c',$target_community,'-v',$vers,$target_host,$OID)  or die "can't exec program: $!";
  99     }
 100 }
 101
 102 sub walk_data {
 103 #This function queries the SNMP daemon for the specific OID
 104     my ($snmpwalk, $target_host, $target_community, $OID,$vers) = @_;
 105
 106     die "cannot fork: $!" unless defined($pid = open(SNMPWALK, "-|"));
 107
 108     if ($pid) {   # parent
 109         while (<SNMPWALK>) {
 110             $output = $_;
 111             sort_walk_data($output);
 112         }
 113         close(SNMPWALK) or warn "kid exited $?";
 114     } else {      # child
 115         exec($snmpwalk,'-c',$target_community,'-v',$vers,$target_host,$OID)  or die "can't exec program: $!";
 116     }
 117 }
 118
 119 sub sort_walk_data {
 120     my ($snmp_data) = @_;
 121     @fields = split(/\./,$snmp_data);
 122     $item = $fields[8];
 123     $filesystemID1 = $fields[9];
 124     @fields2 = split(/=/,$fields[10]);
 125 #   $filesystemID2 = $fields2[0];
 126     $value = $fields2[1];
 127     chomp($value);
 128     if ($value =~ /"/) {
 129         @fields3 = split(/"/,$value);
 130         $value = $fields3[1];
 131     }
 132     if ($item == 3) {
 133         $mounted{$filesystemID1} = "$value";
 134     } elsif ($item == 4) {
 135         $totalspace{$filesystemID1} = "$value";
 136     } elsif ($item == 6) {
 137         $freespace{$filesystemID1} = "$value";
 138     } elsif ($item == 10) {
 139         $filesystempath{$filesystemID1} = "$value";
 140     }
 141 }
 142
 143 sub show_filesystem {
 144     print "\n\nfilesystemID1\tmounted filesystem\tfilesystem path\n";
 145     foreach $element (keys %mounted) {
 146         print "$element\t$mounted{$element}\t\t$filesystempath{$element}\n";
 147     }
 148     print "\n\n";
 149 }
 150
 151 sub check_filesystem {
 152
 153 # Warning  = percentage of used space >= $warning and < $critical
 154 # Critical = percentage of used space > $warning and >= $critical
 155 # OK       = percentage of used space < $warning and < $critical
 156
 157     my ($mounted_filesystem, $warning, $critical) = @_;
 158     foreach $element (keys %mounted) {
 159         if ($mounted{$element} eq $mounted_filesystem) {
 160             my $warning_result = $totalspace{$element}*(100-$warning)/100;
 161             my $critical_result = $totalspace{$element}*(100-$critical)/100;
 162             my $result_percent = $freespace{$element}*100/$totalspace{$element};
 163             if (($freespace{$element} <= $warning_result) && ($freespace{$element} > $critical_result)) {
 164                 printf "Only %d M (%d%s) free\n",$freespace{$element}/1024,$result_percent,"%";
 165                 exit 1;
 166             } elsif ($freespace{$element} <= $critical_result) {
 167                 printf "Only %d M (%d%s) free\n",$freespace{$element}/1024,$result_percent,"%";
 168                 exit 2;
 169             } else {
 170                 printf "Disk ok - %d M (%d%s) free\n",$freespace{$element}/1024,$result_percent,"%";
 171                 exit 0;
 172             }
 173         }
 174     }
 175     print "$mounted_filesystem doesn't exist in $target_host\n\n";
 176     exit -1;
 177 }
 178
 179 sub check_filesystemID1{
 180 # Warning  = percentage of used space >= $warning and < $critical
 181 # Critical = percentage of used space > $warning and >= $critical
 182 # OK       = percentage of used space < $warning and < $critical
 183
 184     my ($fsid1, $warning, $critical) = @_;
 185     foreach $element (keys %totalspace) {
 186         if ($element eq  $fsid1) {
 187             my $warning_result = $totalspace{$element}*(100-$warning)/100;
 188             my $critical_result = $totalspace{$element}*(100-$critical)/100;
 189             my $result_percent = $freespace{$element}*100/$totalspace{$element};
 190             if (($freespace{$element} <= $warning_result) && ($freespace{$element} >= $critical_result)) {
 191                 printf "Only %d M (%d%s) free\n",$freespace{$element}/1024,$result_percent,"%";
 192                 exit 1;
 193             } elsif ($freespace{$element} <= $critical_result) {
 194                 printf "Only %d M (%d%s) free\n",$freespace{$element}/1024,$result_percent,"%";
 195                 exit 2;
 196             } else {
 197                 printf "Disk ok - %d M (%d%s) free\n",$freespace{$element}/1024,$result_percent,"%";
 198                 exit 0;
 199             }
 200         }
 201     }
 202     print "$fsid1 doesn't exist in $target_host\n\n";
 203     exit -1;
 204 }
 205
 206 sub check_cpu_5min {
 207     my ($cpu, $warn, $crit) = @_;
 208     if ($cpu >= $crit) {
 209         print "Critical- 5-min load: $cpu\n";
 210         exit 2;
 211     } elsif ($cpu >= $warn) {
 212         print "Warning - 5-min load: $cpu\n";
 213         exit 1;
 214     } else {
 215         print "Load ok - 5-min load: $cpu\n";
 216         exit 0;
 217     }
 218 }
 219
 220
 221