mirror of
https://github.com/monitoring-plugins/monitoring-plugins.git
synced 2026-04-24 07:39:14 -04:00
Added -M for maxmsgsize (v1/v2c)
Added v3 support git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@743 f882894a-f735-0410-b71e-b25c423dba1c
This commit is contained in:
Subhendu Ghosh
parent
bf1f9663de
commit
cc80829d35
1 changed files with 230 additions and 93 deletions
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@ -7,6 +7,8 @@
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# Modified 5/2002 to conform to updated Nagios Plugin Guidelines (S. Ghosh)
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# Added -x option (4/2003)
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# Added -u option (4/2003)
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# Added -M option (10/2003)
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# Added SNMPv3 support (10/2003)
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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@ -40,9 +42,13 @@ Getopt::Long::Configure('bundling');
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my $PROGNAME = "check_ifstatus";
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sub print_help ();
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sub usage ();
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sub process_arguments ();
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my $status;
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my %ifOperStatus = ('1','up',
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my %ifOperStatus = ('1','up',
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'2','down',
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'3','testing',
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'4','unknown',
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@ -55,6 +61,8 @@ my $snmpkey=0;
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my $snmpoid=0;
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my $key=0;
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my $community = "public";
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my $maxmsgsize = 1472 ; # Net::SNMP default is 1472
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my ($seclevel, $authproto, $secname, $authpass, $privpass, $auth, $priv, $context);
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my $port = 161;
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my @snmpoids;
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my $snmpIfAdminStatus = '1.3.6.1.2.1.2.2.1.7';
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@ -93,98 +101,19 @@ $SIG{'ALRM'} = sub {
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print ("ERROR: No snmp response from $hostname (alarm timeout)\n");
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exit $ERRORS{"UNKNOWN"};
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};
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alarm($TIMEOUT);
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#Option checking
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$status = GetOptions(
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"V" => \$opt_V, "version" => \$opt_V,
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"h" => \$opt_h, "help" => \$opt_h,
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"v=i" => \$snmp_version, "snmp_version=i" => \$snmp_version,
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"C=s" =>\$community,"community=s" => \$community,
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"p=i" =>\$port, "port=i" => \$port,
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"H=s" => \$hostname, "hostname=s" => \$hostname,
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"I" => \$ifXTable, "ifmib" => \$ifXTable,
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"x:s" => \$opt_x, "exclude:s" => \$opt_x,
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"u=s" => \$opt_u, "unused_ports=s" => \$opt_u);
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if ($status == 0)
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$status = process_arguments();
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if ($status != 0)
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{
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print_help() ;
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exit $ERRORS{'OK'};
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}
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if ($opt_V) {
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print_revision($PROGNAME,'$Revision$ ');
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exit $ERRORS{'OK'};
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}
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if ($opt_h) {
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print_help();
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exit $ERRORS{'OK'};
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}
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if (defined $opt_x) {
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my @x = split(/,/, $opt_x);
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if ( @x) {
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foreach $key (@x){
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$excluded{$key} = 1;
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}
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}else{
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$excluded{23} = 1; # default PPP(23) if empty list - note (AIX seems to think PPP is 22 according to a post)
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}
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#debugging
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#foreach $x (keys %excluded)
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# { print "key = $x val = $excluded{$x}\n";}
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}
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if ($opt_u) {
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@unused_ports = split(/,/,$opt_u);
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foreach $key (@unused_ports) {
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$ifStatus{$key}{'notInUse'}++ ;
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}
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}
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if (! utils::is_hostname($hostname)){
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usage();
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exit $ERRORS{"UNKNOWN"};
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}
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if ( ! $snmp_version ) {
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$snmp_version =1 ;
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}else{
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if ( $snmp_version =~ /[12]/ ) {
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($session, $error) = Net::SNMP->session(
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-hostname => $hostname,
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-community => $community,
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-port => $port,
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-version => $snmp_version
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);
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if (!defined($session)) {
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$state='UNKNOWN';
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$answer=$error;
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print ("$state: $answer");
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exit $ERRORS{$state};
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}
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}elsif ( $snmp_version =~ /3/ ) {
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$state='UNKNOWN';
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print ("$state: No support for SNMP v3 yet\n");
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exit $ERRORS{$state};
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}else{
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$state='UNKNOWN';
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print ("$state: No support for SNMP v$snmp_version yet\n");
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exit $ERRORS{$state};
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}
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}
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alarm($TIMEOUT);
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push(@snmpoids,$snmpIfOperStatus);
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push(@snmpoids,$snmpIfAdminStatus);
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@ -205,7 +134,7 @@ foreach $snmpoid (@snmpoids) {
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if ( ( $snmpoid =~ $snmpIfName ) && defined $ifXTable ) {
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print ("$state: Device does not support ifTable - try without -I option\n");
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}else{
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print ("$state: $answer for $snmpoid with snmp version $snmp_version\n");
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print ("$state: $answer for $snmpoid with snmp version $snmp_version\n");
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}
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exit $ERRORS{$state};
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}
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@ -220,6 +149,8 @@ foreach $snmpoid (@snmpoids) {
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$session->close;
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alarm(0);
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foreach $key (keys %ifStatus) {
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# skip unused interfaces
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@ -230,18 +161,18 @@ foreach $key (keys %ifStatus) {
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# check only if interface type is not listed in %excluded
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if (!defined $excluded{$ifStatus{$key}{$snmpIfType}} ) {
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if ($ifStatus{$key}{$snmpIfOperStatus} == 1 ) { $ifup++ ;}
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if ($ifStatus{$key}{$snmpIfOperStatus} == 2 ) {
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$ifdown++ ;
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if ($ifStatus{$key}{$snmpIfOperStatus} == 2 ) {
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$ifdown++ ;
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if (defined $ifXTable) {
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$ifmessage .= sprintf("%s: down -> %s<BR>",
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$ifStatus{$key}{$snmpIfName},
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$ifStatus{$key}{$snmpIfAlias});
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$ifStatus{$key}{$snmpIfAlias});
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}else{
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$ifmessage .= sprintf("%s: down <BR>",
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$ifStatus{$key}{$snmpIfDescr});
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}
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}
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if ($ifStatus{$key}{$snmpIfOperStatus} == 5 ) { $ifdormant++ ;}
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if ($ifStatus{$key}{$snmpIfOperStatus} == 5 ) { $ifdormant++ ;}
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}else{
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$ifexclude++;
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}
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@ -278,7 +209,7 @@ print ("$state: $answer |$perfdata\n");
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exit $ERRORS{$state};
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sub usage {
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sub usage (){
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printf "\nMissing arguments!\n";
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printf "\n";
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printf "check_ifstatus -C <READCOMMUNITY> -p <PORT> -H <HOSTNAME>\n";
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@ -289,24 +220,230 @@ sub usage {
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exit $ERRORS{"UNKNOWN"};
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}
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sub print_help {
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sub print_help (){
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printf "check_ifstatus plugin for Nagios monitors operational \n";
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printf "status of each network interface on the target host\n";
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printf "status of each network interface on the target host\n";
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printf "\nUsage:\n";
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printf " -H (--hostname) Hostname to query - (required)\n";
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printf " -C (--community) SNMP read community (defaults to public,\n";
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printf " used with SNMP v1 and v2c\n";
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printf " -v (--snmp_version) 1 for SNMP v1 (default)\n";
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printf " 2 for SNMP v2c\n";
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printf " SNMP v2c will use get_bulk for less overhead\n";
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printf " SNMP v2c will use get_bulk for less overhead\n";
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printf " 3 for SNMPv3 (requires -U option)";
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printf " -p (--port) SNMP port (default 161)\n";
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printf " -I (--ifmib) Agent supports IFMIB ifXTable. For Cisco - this will provide\n";
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printf " the descriptive name. Do not use if you don't know what this is. \n";
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printf " -x (--exclude) A comma separated list of ifType values that should be excluded \n";
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printf " from the report (default for an empty list is PPP(23).\n";
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printf " -u (--unused_ports) A comma separated list of ifIndex values that should be excluded \n";
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printf " from the report (default is an empty exclusion list).\n";
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printf " See the IANAifType-MIB for a list of interface types.\n";
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printf " -L (--seclevel) choice of \"noAuthNoPriv\", \"authNoPriv\", or \"authPriv\"\n";
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printf " -U (--secname) username for SNMPv3 context\n";
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printf " -c (--context) SNMPv3 context name (default is empty string)";
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printf " -A (--authpass) authentication password (cleartext ascii or localized key\n";
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printf " in hex with 0x prefix generated by using \"snmpkey\" utility\n";
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printf " auth password and authEngineID\n";
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printf " -a (--authproto) Authentication protocol ( MD5 or SHA1)\n";
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printf " -X (--privpass) privacy password (cleartext ascii or localized key\n";
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printf " in hex with 0x prefix generated by using \"snmpkey\" utility\n";
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printf " privacy password and authEngineID\n";
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printf " -M (--maxmsgsize) Max message size - usefull only for v1 or v2c\n";
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printf " -V (--version) Plugin version\n";
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printf " -h (--help) usage help \n\n";
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print_revision($PROGNAME, '$Revision$');
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}
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sub process_arguments() {
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$status = GetOptions(
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"V" => \$opt_V, "version" => \$opt_V,
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"h" => \$opt_h, "help" => \$opt_h,
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"v=i" => \$snmp_version, "snmp_version=i" => \$snmp_version,
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"C=s" => \$community,"community=s" => \$community,
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"L=s" => \$seclevel, "seclevel=s" => \$seclevel,
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"a=s" => \$authproto, "authproto=s" => \$authproto,
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"U=s" => \$secname, "secname=s" => \$secname,
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"A=s" => \$authpass, "authpass=s" => \$authpass,
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"X=s" => \$privpass, "privpass=s" => \$privpass,
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"c=s" => \$context, "context=s" => \$context,
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"p=i" =>\$port, "port=i" => \$port,
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"H=s" => \$hostname, "hostname=s" => \$hostname,
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"I" => \$ifXTable, "ifmib" => \$ifXTable,
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"x:s" => \$opt_x, "exclude:s" => \$opt_x,
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"u=s" => \$opt_u, "unused_ports=s" => \$opt_u,
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"M=i" => \$maxmsgsize, "maxmsgsize=i" => \$maxmsgsize);
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if ($status == 0){
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print_help() ;
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exit $ERRORS{'OK'};
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}
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if ($opt_V) {
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print_revision($PROGNAME,'$Revision$ ');
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exit $ERRORS{'OK'};
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}
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if ($opt_h) {
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print_help();
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exit $ERRORS{'OK'};
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}
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if ($snmp_version =~ /3/ ) {
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# Must define a security level even though default is noAuthNoPriv
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# v3 requires a security username
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if (defined $seclevel && defined $secname) {
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# Must define a security level even though defualt is noAuthNoPriv
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unless ($seclevel eq ('noAuthNoPriv' || 'authNoPriv' || 'authPriv' ) ) {
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usage();
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exit $ERRORS{"UNKNOWN"};
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}
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# Authentication wanted
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if ($seclevel eq ('authNoPriv' || 'authPriv') ) {
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unless ($authproto eq ('MD5' || 'SHA1') ) {
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usage();
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exit $ERRORS{"UNKNOWN"};
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}
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if ( !defined $authpass) {
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usage();
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exit $ERRORS{"UNKNOWN"};
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}else{
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if ($authpass =~ /^0x/ ) {
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$auth = "-authkey => $authpass" ;
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}else{
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$auth = "-authpassword => $authpass";
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}
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}
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}
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# Privacy (DES encryption) wanted
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if ($seclevel eq 'authPriv' ) {
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if (! defined $privpass) {
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usage();
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exit $ERRORS{"UNKNOWN"};
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}else{
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if ($privpass =~ /^0x/){
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$priv = "-privkey => $privpass";
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}else{
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$priv = "-privpassword => $privpass";
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}
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}
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}
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# Context name defined or default
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unless ( defined $context) {
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$context = "";
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}
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}else {
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usage();
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exit $ERRORS{'UNKNOWN'}; ;
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}
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} # end snmpv3
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# for snmp v1 & v2c we default to community = "public"
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# Excluded interfaces types (ifType) (backup interfaces, dial-on demand interfaces, PPP interfaces
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if (defined $opt_x) {
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my @x = split(/,/, $opt_x);
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if ( @x) {
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foreach $key (@x){
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$excluded{$key} = 1;
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}
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}else{
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$excluded{23} = 1; # default PPP(23) if empty list - note (AIX seems to think PPP is 22 according to a post)
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}
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}
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# Excluded interface ports (ifIndex) - management reasons
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if ($opt_u) {
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@unused_ports = split(/,/,$opt_u);
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foreach $key (@unused_ports) {
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$ifStatus{$key}{'notInUse'}++ ;
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}
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}
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if (! utils::is_hostname($hostname)){
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usage();
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exit $ERRORS{"UNKNOWN"};
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}
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# create SNMP session handle based on options passed.
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if ( ! $snmp_version ) {
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$snmp_version =1 ;
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}else{
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if ( $snmp_version =~ /[12]/ ) {
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($session, $error) = Net::SNMP->session(
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-hostname => $hostname,
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-community => $community,
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-port => $port,
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-version => $snmp_version,
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-maxmsgsize => $maxmsgsize
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);
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if (!defined($session)) {
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$state='UNKNOWN';
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$answer=$error;
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print ("$state: $answer");
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exit $ERRORS{$state};
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}
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}elsif ( $snmp_version =~ /3/ ) {
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if ($seclevel eq 'noAuthNoPriv') {
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($session, $error) = Net::SNMP->session(
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-hostname => $hostname,
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-port => $port,
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-version => $snmp_version,
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-username => $secname,
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);
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}elsif ( $seclevel eq 'authNoPriv' ) {
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($session, $error) = Net::SNMP->session(
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-hostname => $hostname,
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-port => $port,
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-version => $snmp_version,
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-username => $secname,
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$auth
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);
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}elsif ($seclevel eq 'authPriv' ) {
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($session, $error) = Net::SNMP->session(
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-hostname => $hostname,
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-port => $port,
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-version => $snmp_version,
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-username => $secname,
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$auth,
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$priv
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);
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}
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if (!defined($session)) {
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$state='UNKNOWN';
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$answer=$error;
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print ("$state: $answer");
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exit $ERRORS{$state};
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}
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}else{
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$state='UNKNOWN';
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print ("$state: No support for SNMP v$snmp_version yet\n");
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exit $ERRORS{$state};
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}
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}
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return $ERRORS{"OK"};
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}
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