552 lines
20 KiB
Perl
Executable file
552 lines
20 KiB
Perl
Executable file
#!/usr/bin/perl -w
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############################## check_snmp_css.pl #################
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# Version : 1.0.1
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# Date : 27 Sept 2006
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# Author : Patrick Proy ( patrick at proy.org)
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# Help : http://www.manubulon.com/nagios/
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# License : GPL - http://www.fsf.org/licenses/gpl.txt
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# Changelog :
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# Contributors :
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#################################################################
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#
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# Help : ./check_snmp_css.pl -h
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#
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use strict;
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use Net::SNMP;
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use Getopt::Long;
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# Icinga specific
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my %ERRORS = ('OK' => 0, 'WARNING' => 1, 'CRITICAL' => 2, 'UNKNOWN' => 3, 'DEPENDENT' => 4);
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# SNMP Datas
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my $css_svc_table = "1.3.6.1.4.1.9.9.368.1.15.2.1"; # Svc table
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my $css_svc_name = "1.3.6.1.4.1.9.9.368.1.15.2.1.1"; # Service Name / apSvcName
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my $css_svc_index = "1.3.6.1.4.1.9.9.368.1.15.2.1.2"; # apSvcIndex
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my $css_svc_enable = "1.3.6.1.4.1.9.9.368.1.15.2.1.12"; # apSvcEnable
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my $css_svc_state = "1.3.6.1.4.1.9.9.368.1.15.2.1.17"; # apSvcState : suspended(1), down(2), alive(4), dying(5)
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my $css_svc_maxconn = "1.3.6.1.4.1.9.9.368.1.15.2.1.19"; # Max connexions / apSvcMaxConnections
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my $css_svc_conn = "1.3.6.1.4.1.9.9.368.1.15.2.1.20"; # apSvcConnections
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my $css_svc_avgresp = "1.3.6.1.4.1.9.9.368.1.15.2.1.65"; # apSvcAvgResponseTime : average response time
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my $css_svc_maxresp = "1.3.6.1.4.1.9.9.368.1.15.2.1.66"; # apSvcPeakAvgResponseTime : peak response time
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my @css_svc_state_txt = ("", "suspended", "down", "", "alive", "dying");
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my @css_svc_state_nag = (3, 2, 2, 3, 0, 2);
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# Globals
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my $VERSION = "2.0.0";
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my $o_host = undef; # hostname
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my $o_community = undef; # community
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my $o_port = 161; # port
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my $o_help = undef; # wan't some help ?
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my $o_verb = undef; # verbose mode
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my $o_version = undef; # print version
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my $o_timeout = undef; # Timeout (Default 5)
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my $o_perf = undef; # Output performance data
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my $o_version2 = undef; # use snmp v2c
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#Specific
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my $o_dir = "/tmp/"; # Directory to store temp file in it.
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my $o_dir_set = undef; # defined if names and index must be read form file.
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my $o_name = undef; # service name (regexp)
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my $o_warn_number = undef; # minimum number of service before warning
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my $o_crit_number = undef; # minimum number of service before critical
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my $o_warn_conn = undef; # % of max connexions for warning level
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my $o_crit_conn = undef; # % of max connexions for critical level
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my $o_warn_resp = undef; # average response time for warning level
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my $o_crit_resp = undef; # average response time for critical level
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my @o_levels = undef;
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# SNMPv3 specific
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my $o_login = undef; # Login for snmpv3
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my $o_passwd = undef; # Pass for snmpv3
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my $v3protocols = undef; # V3 protocol list.
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my $o_authproto = 'md5'; # Auth protocol
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my $o_privproto = 'des'; # Priv protocol
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my $o_privpass = undef; # priv password
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# functions
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sub p_version { print "check_snmp_css version : $VERSION\n"; }
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sub print_usage {
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print
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"Usage: $0 [-v] -H <host> -C <snmp_community> [-2] | (-l login -x passwd [-X pass -L <authp>,<privp>]) -n <name> [-d directory] [-w <num>,<resp>,<conn> -c <num>,<resp>,<conn>] [-p <port>] [-f] [-t <timeout>] [-V]\n";
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}
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sub isnnum { # Return true if arg is not a number
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my $num = shift;
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if ($num =~ /^-?(\d+\.?\d*)|(^\.\d+)$/) { return 0; }
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return 1;
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}
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sub set_status { # return worst status with this order : OK, unknwonw, warning, critical
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my $new_status = shift;
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my $cur_status = shift;
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if (($cur_status == 0) || ($new_status == $cur_status)) { return $new_status; }
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if ($new_status == 3) { return $cur_status; }
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if ($new_status > $cur_status) { return $new_status; }
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return $cur_status;
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}
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sub is_pattern_valid { # Test for things like "<I\s*[^>" or "+5-i"
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my $pat = shift;
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if (!defined($pat)) { $pat = " "; } # Just to get rid of compilation time warnings
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return eval { "" =~ /$pat/; 1 } || 0;
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}
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sub round ($$) {
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sprintf "%.$_[1]f", $_[0];
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}
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sub help {
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print "\nSNMP Cisco CSS monitor for Icinga/Nagios/Naemon/Shinken, Version ", $VERSION, "\n";
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print "(c)2004-2006 Patrick Proy\n\n";
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print_usage();
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print <<EOT;
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-v, --verbose
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print extra debugging information
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-h, --help
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print this help message
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-H, --hostname=HOST
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name or IP address of host to check
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-n, --name=<name>
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regexp to select service
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-w, --warning=<num>,<resp>,<conn>
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Optional. Warning level for
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- minimum number of active & alive service
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- average response time
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- number of connexions
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For no warnings, put -1 (ex : -w5,-1,3).
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When using negative numbers, dont put space after "-w"
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-d, --dir=<directory to put file>
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Directory where the temp file with index, created by check_snmp_css_main.pl, can be found
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If no directory is set, /tmp will be used
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-c, --critical=<num>,resp>,<conn>
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Optional. Critical levels (-1 for no critical levels)
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See warning levels.
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-C, --community=COMMUNITY NAME
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community name for the host's SNMP agent (implies v1 protocol)
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-2, --v2c
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Use snmp v2c
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-l, --login=LOGIN ; -x, --passwd=PASSWD
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Login and auth password for snmpv3 authentication
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If no priv password exists, implies AuthNoPriv
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-X, --privpass=PASSWD
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Priv password for snmpv3 (AuthPriv protocol)
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-L, --protocols=<authproto>,<privproto>
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<authproto> : Authentication protocol (md5|sha : default md5)
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<privproto> : Priv protocole (des|aes : default des)
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-P, --port=PORT
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SNMP port (Default 161)
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-f, --perfparse
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Perfparse compatible output
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-t, --timeout=INTEGER
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timeout for SNMP in seconds (Default: 5)
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-V, --version
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prints version number
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EOT
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}
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# For verbose output
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sub verb { my $t = shift; print $t, "\n" if defined($o_verb); }
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sub check_options {
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Getopt::Long::Configure("bundling");
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GetOptions(
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'v' => \$o_verb,
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'verbose' => \$o_verb,
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'h' => \$o_help,
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'help' => \$o_help,
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'H:s' => \$o_host,
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'hostname:s' => \$o_host,
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'p:i' => \$o_port,
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'port:i' => \$o_port,
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'C:s' => \$o_community,
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'community:s' => \$o_community,
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'l:s' => \$o_login,
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'login:s' => \$o_login,
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'x:s' => \$o_passwd,
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'passwd:s' => \$o_passwd,
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'X:s' => \$o_privpass,
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'privpass:s' => \$o_privpass,
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'L:s' => \$v3protocols,
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'protocols:s' => \$v3protocols,
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't:i' => \$o_timeout,
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'timeout:i' => \$o_timeout,
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'V' => \$o_version,
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'version' => \$o_version,
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'2' => \$o_version2,
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'v2c' => \$o_version2,
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'f' => \$o_perf,
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'perfparse' => \$o_perf,
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'n:s' => \$o_name,
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'name:s' => \$o_name,
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'w:s' => \$o_warn_conn,
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'warning:s' => \$o_warn_conn,
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'c:s' => \$o_crit_conn,
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'critical:s' => \$o_crit_conn,
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'd:s' => \$o_dir_set,
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'dir:s' => \$o_dir_set
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);
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# Basic checks
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if (defined($o_timeout) && (isnnum($o_timeout) || ($o_timeout < 2) || ($o_timeout > 60))) {
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print "Timeout must be >1 and <60 !\n";
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print_usage();
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exit $ERRORS{"UNKNOWN"};
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}
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if (!defined($o_timeout)) { $o_timeout = 5; }
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if (defined($o_help)) { help(); exit $ERRORS{"UNKNOWN"} }
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if (defined($o_version)) { p_version(); exit $ERRORS{"UNKNOWN"} }
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if (!defined($o_host)) # check host and filter
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{
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print_usage();
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exit $ERRORS{"UNKNOWN"};
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}
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# check snmp information
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if (!defined($o_community) && (!defined($o_login) || !defined($o_passwd))) {
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print "Put snmp login info!\n";
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print_usage();
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exit $ERRORS{"UNKNOWN"};
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}
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if ((defined($o_login) || defined($o_passwd)) && (defined($o_community) || defined($o_version2))) {
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print "Can't mix snmp v1,2c,3 protocols!\n";
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print_usage();
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exit $ERRORS{"UNKNOWN"};
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}
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if (defined($v3protocols)) {
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if (!defined($o_login)) {
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print "Put snmp V3 login info with protocols!\n";
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print_usage();
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exit $ERRORS{"UNKNOWN"};
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}
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my @v3proto = split(/,/, $v3protocols);
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if ((defined($v3proto[0])) && ($v3proto[0] ne "")) { $o_authproto = $v3proto[0]; } # Auth protocol
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if (defined($v3proto[1])) { $o_privproto = $v3proto[1]; } # Priv protocol
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if ((defined($v3proto[1])) && (!defined($o_privpass))) {
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print "Put snmp V3 priv login info with priv protocols!\n";
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print_usage();
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exit $ERRORS{"UNKNOWN"};
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}
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}
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if (!defined($o_name) || !(is_pattern_valid($o_name))) {
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print "Need a service name!\n";
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print_usage();
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exit $ERRORS{"UNKNOWN"};
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}
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if (defined($o_warn_conn)) {
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@o_levels = split(/,/, $o_warn_conn);
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if (defined($o_levels[0])) {
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if (isnnum($o_levels[0])) { print "Need number for warning!\n"; print_usage(); exit $ERRORS{"UNKNOWN"} }
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if ($o_levels[0] != -1) { $o_warn_number = $o_levels[0]; }
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}
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if (defined($o_levels[1])) {
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if (isnnum($o_levels[1])) { print "Need number for warning!\n"; print_usage(); exit $ERRORS{"UNKNOWN"} }
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if ($o_levels[1] != -1) { $o_warn_conn = $o_levels[1]; }
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else { $o_warn_conn = undef; }
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} else {
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$o_warn_conn = undef;
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}
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if (defined($o_levels[2])) {
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if (isnnum($o_levels[2])) { print "Need number for warning!\n"; print_usage(); exit $ERRORS{"UNKNOWN"} }
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if ($o_levels[2] != -1) { $o_warn_resp = $o_levels[2]; }
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}
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}
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if (defined($o_crit_conn)) {
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@o_levels = split(/,/, $o_crit_conn);
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if (defined($o_levels[0])) {
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if (isnnum($o_levels[0])) { print "Need number for critical!\n"; print_usage(); exit $ERRORS{"UNKNOWN"} }
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if ($o_levels[0] != -1) {
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$o_crit_number = $o_levels[0];
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if (defined($o_warn_number) && ($o_crit_number >= $o_warn_number)) {
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print "critical must be < warning!\n";
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print_usage();
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exit $ERRORS{"UNKNOWN"};
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}
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}
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}
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if (defined($o_levels[1])) {
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if (isnnum($o_levels[1])) { print "Need number for critical!\n"; print_usage(); exit $ERRORS{"UNKNOWN"} }
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if ($o_levels[1] != -1) {
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$o_crit_conn = $o_levels[1];
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if (defined($o_warn_conn) && ($o_warn_conn >= $o_crit_conn)) {
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print "critical must be > warning!\n";
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print_usage();
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exit $ERRORS{"UNKNOWN"};
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}
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} else {
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$o_crit_conn = undef;
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}
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} else {
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$o_crit_conn = undef;
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}
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if (defined($o_levels[2])) {
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if (isnnum($o_levels[2])) { print "Need number for critical!\n"; print_usage(); exit $ERRORS{"UNKNOWN"} }
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if ($o_levels[2] != -1) {
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$o_crit_resp = $o_levels[1];
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if (defined($o_warn_resp) && ($o_warn_resp >= $o_crit_resp)) {
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print "critical must be > warning!\n";
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print_usage();
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exit $ERRORS{"UNKNOWN"};
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}
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}
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}
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}
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if (defined($o_dir_set)) {
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if ($o_dir_set ne "") { $o_dir = $o_dir_set; }
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verb("Tmp directory : $o_dir");
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}
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}
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########## MAIN #######
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check_options();
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if (defined($o_timeout)) {
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verb("Alarm in $o_timeout seconds");
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alarm($o_timeout);
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}
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$SIG{'ALRM'} = sub {
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print "No answer from host $o_host:$o_port\n";
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exit $ERRORS{"UNKNOWN"};
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};
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# Connect to host
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my ($session, $error);
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if (defined($o_login) && defined($o_passwd)) {
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# SNMPv3 login
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verb("SNMPv3 login");
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if (!defined($o_privpass)) {
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verb("SNMPv3 AuthNoPriv login : $o_login, $o_authproto");
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($session, $error) = Net::SNMP->session(
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-hostname => $o_host,
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-version => '3',
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-username => $o_login,
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-authpassword => $o_passwd,
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-authprotocol => $o_authproto,
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-timeout => $o_timeout
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);
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} else {
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verb("SNMPv3 AuthPriv login : $o_login, $o_authproto, $o_privproto");
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($session, $error) = Net::SNMP->session(
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-hostname => $o_host,
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-version => '3',
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-username => $o_login,
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-authpassword => $o_passwd,
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-authprotocol => $o_authproto,
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-privpassword => $o_privpass,
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-privprotocol => $o_privproto,
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-timeout => $o_timeout
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);
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}
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} else {
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if (defined($o_version2)) {
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# SNMPv2 Login
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verb("SNMP v2c login");
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($session, $error) = Net::SNMP->session(
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-hostname => $o_host,
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-version => 2,
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-community => $o_community,
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-port => $o_port,
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-timeout => $o_timeout
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);
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} else {
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# SNMPV1 login
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verb("SNMP v1 login");
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($session, $error) = Net::SNMP->session(
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-hostname => $o_host,
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-community => $o_community,
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-port => $o_port,
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-timeout => $o_timeout
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);
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}
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}
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if (!defined($session)) {
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printf("ERROR opening session: %s.\n", $error);
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exit $ERRORS{"UNKNOWN"};
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}
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$session->max_msg_size(10000);
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########### Cisco CSS checks ##############
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my (@index, @svcname) = (undef, undef);
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my ($numsvc, $numoid, $numoid2) = 0;
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my (@oid, @oid_list, @oid_list2) = undef;
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my $resultat = undef;
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# Get load table by snmp or file
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if (defined($o_dir_set)) {
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my $file_name = $o_dir . "/Nagios_css_" . $o_host;
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my $file_lock = $file_name . ".lock";
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# Check for lock file during 3 seconds max and quit if sill here.
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my $file_timeout = 0;
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while (-e $file_lock) {
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sleep(1);
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if ($file_timeout == 3) {
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print "Lock file remaining for more than 3 sec : UNKNOWN\n";
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exit $ERRORS{"UNKNOWN"};
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}
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$file_timeout++;
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}
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# Open file for reading.
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open(FILE, "< " . $file_name);
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while (<FILE>) {
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my @file_line = split(/:/, $_);
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if ((defined($file_line[1])) && ($file_line[1] =~ /$o_name/)) { # select service by name
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chomp($file_line[1]);
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$svcname[$numsvc] = $file_line[1];
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my $key = $file_line[0];
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verb("Found : $svcname[$numsvc]");
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$index[$numsvc++] = $key;
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# Build oid for snmpget
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$oid_list[$numoid++] = $css_svc_enable . $key;
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$oid_list[$numoid++] = $css_svc_state . $key;
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$oid_list2[$numoid2++] = $css_svc_maxconn . $key;
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$oid_list2[$numoid2++] = $css_svc_conn . $key;
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$oid_list2[$numoid2++] = $css_svc_avgresp . $key;
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}
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}
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close(FILE);
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} else {
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$resultat
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= (version->parse(Net::SNMP->VERSION) < 4)
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? $session->get_table($css_svc_name)
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: $session->get_table(Baseoid => $css_svc_name);
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if (!defined($resultat)) {
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printf("ERROR: Description table : %s.\n", $session->error);
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$session->close;
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exit $ERRORS{"UNKNOWN"};
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}
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# Get name data & index
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foreach my $key (keys %$resultat) {
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verb("OID : $key, Desc : $$resultat{$key}");
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if ($$resultat{$key} =~ /$o_name/) { # select service by name
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$svcname[$numsvc] = $$resultat{$key};
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$key =~ s/$css_svc_name//;
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verb("Found : $svcname[$numsvc]");
|
|
$index[$numsvc++] = $key;
|
|
|
|
# Build oid for snmpget
|
|
$oid_list[$numoid++] = $css_svc_enable . $key;
|
|
$oid_list[$numoid++] = $css_svc_state . $key;
|
|
$oid_list2[$numoid2++] = $css_svc_maxconn . $key;
|
|
$oid_list2[$numoid2++] = $css_svc_conn . $key;
|
|
$oid_list2[$numoid2++] = $css_svc_avgresp . $key;
|
|
}
|
|
}
|
|
}
|
|
|
|
# Check if a least one service found
|
|
if ($numsvc == 0) {
|
|
print "No service matching ", $o_name, " found : CRITICAL\n";
|
|
exit $ERRORS{"CRITICAL"};
|
|
}
|
|
|
|
$resultat = undef;
|
|
$resultat
|
|
= (version->parse(Net::SNMP->VERSION) < 4)
|
|
? $session->get_request(@oid_list)
|
|
: $session->get_request(-varbindlist => \@oid_list);
|
|
|
|
if (!defined($resultat)) {
|
|
printf("ERROR: Status get : %s.\n", $session->error);
|
|
$session->close;
|
|
exit $ERRORS{"UNKNOWN"};
|
|
}
|
|
my $resultat2 = undef;
|
|
$resultat2
|
|
= (version->parse(Net::SNMP->VERSION) < 4)
|
|
? $session->get_request(@oid_list2)
|
|
: $session->get_request(-varbindlist => \@oid_list2);
|
|
|
|
if (!defined($resultat2)) {
|
|
printf("ERROR: Conn get : %s.\n", $session->error);
|
|
$session->close;
|
|
exit $ERRORS{"UNKNOWN"};
|
|
}
|
|
|
|
my $output = "";
|
|
my $output_perf = "";
|
|
my $numsvc_ok = 0;
|
|
my $output_done = 0;
|
|
my $global_status = 0;
|
|
|
|
for (my $i = 0; $i < $numsvc; $i++) {
|
|
my $key = $index[$i];
|
|
if ($$resultat{ $css_svc_enable . $key } == 0) {
|
|
|
|
# service disabled
|
|
if ($output ne "") { $output .= ", "; }
|
|
$output .= $svcname[$i] . " : Disabled";
|
|
} else {
|
|
if ($css_svc_state_nag[$$resultat{ $css_svc_state . $key }] != 0) {
|
|
|
|
# state not OK
|
|
if ($output ne "") { $output .= ", "; }
|
|
$output .= $svcname[$i] . " : " . $css_svc_state_txt[$$resultat{ $css_svc_state . $key }];
|
|
} else {
|
|
$numsvc_ok++;
|
|
$output_done = 0;
|
|
|
|
# state OK
|
|
my $prctconn
|
|
= round(($$resultat2{ $css_svc_conn . $key } / $$resultat2{ $css_svc_maxconn . $key }) * 100, 0);
|
|
my $resptime = $$resultat2{ $css_svc_avgresp . $key };
|
|
if (defined($o_warn_conn) && ($prctconn > $o_warn_conn)) {
|
|
if ($output ne "") { $output .= ", "; }
|
|
$output .= $svcname[$i] . ":" . $prctconn . "%, " . $resptime . "ms";
|
|
set_status(1, $global_status);
|
|
$output_done = 1;
|
|
}
|
|
if (defined($o_crit_conn) && ($prctconn > $o_crit_conn)) {
|
|
if ($output_done == 0) {
|
|
$output .= $svcname[$i] . ":" . $prctconn . "%, " . $resptime . "ms";
|
|
$output_done = 1;
|
|
}
|
|
set_status(2, $global_status);
|
|
}
|
|
if (defined($o_warn_resp) && ($prctconn > $o_warn_resp)) {
|
|
if ($output_done == 0) {
|
|
$output .= $svcname[$i] . ":" . $prctconn . "%, " . $resptime . "ms";
|
|
$output_done = 1;
|
|
}
|
|
set_status(1, $global_status);
|
|
}
|
|
if (defined($o_crit_resp) && ($prctconn > $o_crit_resp)) {
|
|
if ($output_done == 0) {
|
|
$output .= $svcname[$i] . ":" . $prctconn . "%, " . $resptime . "ms";
|
|
$output_done = 1;
|
|
}
|
|
set_status(2, $global_status);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
$output .= " " . $numsvc_ok . "/" . $numsvc . " services OK";
|
|
|
|
if (($global_status == 2) || ((defined($o_crit_number)) && ($numsvc_ok <= $o_crit_number)) || ($numsvc_ok == 0)) {
|
|
print $output, " : CRITICAL\n";
|
|
exit $ERRORS{"CRITICAL"};
|
|
}
|
|
if (($global_status == 1) || ((defined($o_warn_number)) && ($numsvc_ok <= $o_warn_number))) {
|
|
print $output, " : WARNING\n";
|
|
exit $ERRORS{"WARNING"};
|
|
}
|
|
print $output, " : OK\n";
|
|
exit $ERRORS{"OK"};
|