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nagios-snmp-plugins/check_snmp_nsbox.pl

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#!/usr/bin/perl -w
############################## check_snmp_nsbox #################
# Version : 1.0
# Date : Jan 16 2007
# Author : Patrick Proy ( patrick at proy.org)
# Help : http://www.manubulon.com/nagios/
# Licence : GPL - http://www.fsf.org/licenses/gpl.txt
# Changelog :
# Contributors :
#################################################################
#
# Help : ./check_snmp_nsbox.pl -h
#
use strict;
use Net::SNMP;
use Getopt::Long;
# Nagios specific
use lib "/usr/local/nagios/libexec";
use utils qw(%ERRORS $TIMEOUT);
#my $TIMEOUT = 15;
#my %ERRORS=('OK'=>0,'WARNING'=>1,'CRITICAL'=>2,'UNKNOWN'=>3,'DEPENDENT'=>4);
# SNMP Datas
my $ns_service_status= "1.3.6.1.4.1.14020.2.2.1.3.0"; # service status 1= ok ??
my $ns_service_table= "1.3.6.1.4.1.14020.2.3"; # vhost & diode table
my $ns_vhost_table= "1.3.6.1.4.1.14020.2.3.1"; # vhost table
my $ns_vhost_name= "1.0"; # GUI Vhost Name
my $ns_vhost_requests= "2.0"; # Instant Vhost Requests per Second : NOT POPULATED IN V 2.0.8
my $ns_vhost_Trequests= "2.0"; # Total Vhost Requests : NOT POPULATED IN V 2.0.8
my $ns_diode_table= "1.3.6.1.4.1.14020.2.3.2"; # diode table
my $ns_diode_name= "1.0"; # GUI Diode Name
my $ns_diode_status= "2.0"; # Last diode Status (" " = OK?) (undocumented)
my $ns_rsa_prct_usage= ".1.3.6.1.4.1.14020.1.1.1.3.0"; # % usage of RSA operations. (undocumented)
my $ns_rsa_oper_second= ".1.3.6.1.4.1.14020.1.1.3.4.0;"; # number of RSA operations/s (undocumented)
# Globals
my $Version='1.0';
my $o_host = undef; # hostname
my $o_community = undef; # community
my $o_port = 161; # port
my $o_help= undef; # wan't some help ?
my $o_verb= undef; # verbose mode
my $o_version= undef; # print version
my $o_timeout= undef; # Timeout (Default 5)
my $o_perf= undef; # Output performance data
my $o_version2= undef; # use snmp v2c
# specific
my $o_vhost= undef; # vhost regexp
my $o_diode= undef; # diode regexp
my $o_nvhost= undef; # vhost number
my $o_ndiode= undef; # diode number
# SNMPv3 specific
my $o_login= undef; # Login for snmpv3
my $o_passwd= undef; # Pass for snmpv3
my $v3protocols=undef; # V3 protocol list.
my $o_authproto='md5'; # Auth protocol
my $o_privproto='des'; # Priv protocol
my $o_privpass= undef; # priv password
# functions
sub p_version { print "check_snmp_nsbox version : $Version\n"; }
sub print_usage {
print "Usage: $0 [-v] -H <host> -C <snmp_community> [-2] | (-l login -x passwd [-X pass -L <authp>,<privp>]) -d <diode> -s <vhost> -n <ndiode>,<nvhost> [-p <port>] [-f] [-t <timeout>] [-V]\n";
}
sub isnnum { # Return true if arg is not a number
my $num = shift;
if ( $num =~ /^(\d+\.?\d*)|(^\.\d+)$/ ) { return 0 ;}
return 1;
}
sub set_status { # return worst status with this order : OK, unknwonw, warning, critical
my $new_status=shift;
my $cur_status=shift;
if (($cur_status == 0)|| ($new_status==$cur_status)){ return $new_status; }
if ($new_status==3) { return $cur_status; }
if ($new_status > $cur_status) {return $new_status;}
return $cur_status;
}
sub is_pattern_valid { # Test for things like "<I\s*[^>" or "+5-i"
my $pat = shift;
if (!defined($pat)) { $pat=" ";} # Just to get rid of compilation time warnings
return eval { "" =~ /$pat/; 1 } || 0;
}
sub help {
print "\nSNMP NetSecureOne Netbox monitor for Nagios version ",$Version,"\n";
print "(c)2004-2006 Patrick Proy\n\n";
print_usage();
print <<EOT;
Check that diode and vhost selected by regexp are active.
-v, --verbose
print extra debugging information
-h, --help
print this help message
-H, --hostname=HOST
name or IP address of host to check
-C, --community=COMMUNITY NAME
community name for the host's SNMP agent (implies v1 protocol)
-2, --v2c
Use snmp v2c
-l, --login=LOGIN ; -x, --passwd=PASSWD
Login and auth password for snmpv3 authentication
If no priv password exists, implies AuthNoPriv
-X, --privpass=PASSWD
Priv password for snmpv3 (AuthPriv protocol)
-L, --protocols=<authproto>,<privproto>
<authproto> : Authentication protocol (md5|sha : default md5)
<privproto> : Priv protocole (des|aes : default des)
-d, --diode=<diode>
Diode selection by regexp
-s, --vhost=<vhost>
Vhost selection by regexp
-n, --number=<ndiode>,<nvhost>
number of diode and vhost that must be up.
-P, --port=PORT
SNMP port (Default 161)
-f, --perfparse
Perfparse compatible output
-t, --timeout=INTEGER
timeout for SNMP in seconds (Default: 5)
-V, --version
prints version number
EOT
}
# For verbose output
sub verb { my $t=shift; print $t,"\n" if defined($o_verb) ; }
sub check_options {
Getopt::Long::Configure ("bundling");
GetOptions(
'v' => \$o_verb, 'verbose' => \$o_verb,
'h' => \$o_help, 'help' => \$o_help,
'H:s' => \$o_host, 'hostname:s' => \$o_host,
'p:i' => \$o_port, 'port:i' => \$o_port,
'C:s' => \$o_community, 'community:s' => \$o_community,
'l:s' => \$o_login, 'login:s' => \$o_login,
'x:s' => \$o_passwd, 'passwd:s' => \$o_passwd,
'X:s' => \$o_privpass, 'privpass:s' => \$o_privpass,
'L:s' => \$v3protocols, 'protocols:s' => \$v3protocols,
't:i' => \$o_timeout, 'timeout:i' => \$o_timeout,
'V' => \$o_version, 'version' => \$o_version,
'2' => \$o_version2, 'v2c' => \$o_version2,
'f' => \$o_perf, 'perfparse' => \$o_perf,
'd:s' => \$o_diode, 'diode:s' => \$o_diode,
's:s' => \$o_vhost, 'vhost:s' => \$o_vhost,
'n:s' => \$o_nvhost, 'number:s' => \$o_nvhost
);
# Basic checks
if (defined($o_timeout) && (isnnum($o_timeout) || ($o_timeout < 2) || ($o_timeout > 60)))
{ print "Timeout must be >1 and <60 !\n"; print_usage(); exit $ERRORS{"UNKNOWN"}}
if (!defined($o_timeout)) {$o_timeout=5;}
if (defined ($o_help) ) { help(); exit $ERRORS{"UNKNOWN"}};
if (defined($o_version)) { p_version(); exit $ERRORS{"UNKNOWN"}};
if ( ! defined($o_host) ) # check host and filter
{ print_usage(); exit $ERRORS{"UNKNOWN"}}
# check snmp information
if ( !defined($o_community) && (!defined($o_login) || !defined($o_passwd)) )
{ print "Put snmp login info!\n"; print_usage(); exit $ERRORS{"UNKNOWN"}}
if ((defined($o_login) || defined($o_passwd)) && (defined($o_community) || defined($o_version2)) )
{ print "Can't mix snmp v1,2c,3 protocols!\n"; print_usage(); exit $ERRORS{"UNKNOWN"}}
if (defined ($v3protocols)) {
if (!defined($o_login)) { print "Put snmp V3 login info with protocols!\n"; print_usage(); exit $ERRORS{"UNKNOWN"}}
my @v3proto=split(/,/,$v3protocols);
if ((defined ($v3proto[0])) && ($v3proto[0] ne "")) {$o_authproto=$v3proto[0]; } # Auth protocol
if (defined ($v3proto[1])) {$o_privproto=$v3proto[1]; } # Priv protocol
if ((defined ($v3proto[1])) && (!defined($o_privpass))) {
print "Put snmp V3 priv login info with priv protocols!\n"; print_usage(); exit $ERRORS{"UNKNOWN"}}
}
if (!defined($o_vhost) || !(is_pattern_valid($o_vhost)))
{ print "Vhost selection must be set and be a valid regexp (-s)\n"; print_usage(); exit $ERRORS{"UNKNOWN"}}
if (!defined($o_diode) || !(is_pattern_valid($o_diode)))
{ print "Diode selection must be set and be a valid regexp (-d)\n"; print_usage(); exit $ERRORS{"UNKNOWN"}}
if (!defined($o_nvhost))
{ print "Diode and vhost number must be set (-n)\n"; print_usage(); exit $ERRORS{"UNKNOWN"}}
my @nsbox_number=split(/,/,$o_nvhost);
if ($#nsbox_number != 1)
{ print "2 numbers must be set with -n option\n"; print_usage(); exit $ERRORS{"UNKNOWN"}}
if (isnnum($nsbox_number[0]) || isnnum($nsbox_number[1]))
{ print "2 numbers must be set with -n option\n"; print_usage(); exit $ERRORS{"UNKNOWN"}}
$o_ndiode=$nsbox_number[0];
$o_nvhost=$nsbox_number[1];
}
########## MAIN #######
check_options();
# Check gobal timeout if snmp screws up
if (defined($TIMEOUT)) {
verb("Alarm at $TIMEOUT + 5");
alarm($TIMEOUT+5);
} else {
verb("no global timeout defined : $o_timeout + 10");
alarm ($o_timeout+10);
}
# Connect to host
my ($session,$error);
if ( defined($o_login) && defined($o_passwd)) {
# SNMPv3 login
verb("SNMPv3 login");
if (!defined ($o_privpass)) {
verb("SNMPv3 AuthNoPriv login : $o_login, $o_authproto");
($session, $error) = Net::SNMP->session(
-hostname => $o_host,
-version => '3',
-username => $o_login,
-authpassword => $o_passwd,
-authprotocol => $o_authproto,
-timeout => $o_timeout
);
} else {
verb("SNMPv3 AuthPriv login : $o_login, $o_authproto, $o_privproto");
($session, $error) = Net::SNMP->session(
-hostname => $o_host,
-version => '3',
-username => $o_login,
-authpassword => $o_passwd,
-authprotocol => $o_authproto,
-privpassword => $o_privpass,
-privprotocol => $o_privproto,
-timeout => $o_timeout
);
}
} else {
if (defined ($o_version2)) {
# SNMPv2 Login
verb("SNMP v2c login");
($session, $error) = Net::SNMP->session(
-hostname => $o_host,
-version => 2,
-community => $o_community,
-port => $o_port,
-timeout => $o_timeout
);
} else {
# SNMPV1 login
verb("SNMP v1 login");
($session, $error) = Net::SNMP->session(
-hostname => $o_host,
-community => $o_community,
-port => $o_port,
-timeout => $o_timeout
);
}
}
if (!defined($session)) {
printf("ERROR opening session: %s.\n", $error);
exit $ERRORS{"UNKNOWN"};
}
########### check global status ##############
my @oidlist=($ns_service_status);
my $resultat = (Net::SNMP->VERSION < 4) ?
$session->get_request(@oidlist)
: $session->get_request(-varbindlist => \@oidlist);
if (!defined($resultat) || ($$resultat{$ns_service_status} eq "noSuchObject")) {
printf("ERROR: Global status oid not found : %s.\n", $session->error);
$session->close;
exit $ERRORS{"UNKNOWN"};
}
if ($$resultat{$ns_service_status} != 1) {
print "Global service is in state ",$$resultat{$ns_service_status}," : CRITICAL\n";
exit $ERRORS{"CRITICAL"};
}
########### check vhost & diode status ##############
$resultat=undef;
$resultat = (Net::SNMP->VERSION < 4) ?
$session->get_table($ns_service_table)
: $session->get_table(Baseoid => $ns_service_table);
if (!defined($resultat)) {
printf("ERROR: vhost and diode status table : %s.\n", $session->error);
$session->close;
exit $ERRORS{"UNKNOWN"};
}
$session->close;
my $output="";
my $output_perf="";
my ($index,$name)=undef;
my ($nvhost,$ndiode)=(0,0);
my (@found_vhost,@found_diode)=(undef,undef);
foreach my $key ( keys %$resultat) {
verb("OID : $key, Desc : $$resultat{$key}");
if ( $key =~ /($ns_vhost_table)\.(\d+)\.($ns_vhost_name)/ ) { # Get index of vhost with name
$index=$2;$name=$$resultat{$key};
if ($name =~ /$o_vhost/) {
$found_vhost[$nvhost++]=$name;
verb ("found vhost $name");
}
}
if ( $key =~ /($ns_diode_table)\.(\d+)\.($ns_diode_name)/ ) { # Get index of diode with name
$index=$2;$name=$$resultat{$key};
if ($name =~ /$o_diode/) {
# TODO Check diode status : undocumented for now.
$found_diode[$ndiode++]=$name;
verb ("found diode $name");
}
}
}
if (($ndiode<$o_ndiode) || ($nvhost<$o_nvhost)) {
$output = "Diode";
if ($ndiode == 0 ) { $output.= ": none ";}
else {
$output.= "(".$ndiode."): :";
for (my $i=0;$i<$ndiode;$i++) {
$output.=$found_diode[$i]." ";
}
}
$output .= "Vhost";
if ($nvhost == 0 ) { $output.= ": none ";}
else {
$output.= "(".$nvhost."): :";
for (my $i=0;$i<$nvhost;$i++) {
$output.=$found_vhost[$i]." ";
}
}
$output .= " < " . $o_ndiode .",". $o_nvhost ." : CRITICAL";
print $output,"\n";
exit $ERRORS{"CRITICAL"};
}
$output = $ndiode . " diodes, " .$nvhost." vhosts :";
if (($ndiode>$o_ndiode) || ($nvhost>$o_nvhost)) {
$output .= " > " . $o_ndiode .",". $o_nvhost ." : WARNING";
} else {
$output .= " OK";
}
print $output,"\n";
exit $ERRORS{"OK"};
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