summaryrefslogtreecommitdiffstats
path: root/plugins-scripts/check_ifstatus.pl
diff options
context:
space:
mode:
Diffstat (limited to 'plugins-scripts/check_ifstatus.pl')
-rwxr-xr-xplugins-scripts/check_ifstatus.pl250
1 files changed, 250 insertions, 0 deletions
diff --git a/plugins-scripts/check_ifstatus.pl b/plugins-scripts/check_ifstatus.pl
new file mode 100755
index 0000000..f54008f
--- /dev/null
+++ b/plugins-scripts/check_ifstatus.pl
@@ -0,0 +1,250 @@
1#!/usr/local/bin/perl -w
2#
3# check_ifstatus.pl - nagios plugin
4#
5#
6# Copyright (C) 2000 Christoph Kron
7# Modified 5/2002 to conform to updated Nagios Plugin Guidelines (S. Ghosh)
8#
9# This program is free software; you can redistribute it and/or
10# modify it under the terms of the GNU General Public License
11# as published by the Free Software Foundation; either version 2
12# of the License, or (at your option) any later version.
13#
14# This program is distributed in the hope that it will be useful,
15# but WITHOUT ANY WARRANTY; without even the implied warranty of
16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17# GNU General Public License for more details.
18#
19# You should have received a copy of the GNU General Public License
20# along with this program; if not, write to the Free Software
21# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22#
23#
24# Report bugs to: ck@zet.net, nagiosplug-help@lists.sf.net
25#
26# 11.01.2000 Version 1.0
27#
28# $Id$
29
30use POSIX;
31use strict;
32use lib utils.pm ;
33use utils qw($TIMEOUT %ERRORS &print_revision &support);
34
35use Net::SNMP;
36use Getopt::Long;
37Getopt::Long::Configure('bundling');
38
39my $PROGNAME = "check_ifstatus";
40
41
42my $status;
43my %ifOperStatus = ('1','up',
44 '2','down',
45 '3','testing',
46 '4','unknown',
47 '5','dormant',
48 '6','notPresent');
49
50my $state = "UNKNOWN";
51my $answer = "";
52my $snmpkey=0;
53my $snmpoid=0;
54my $key=0;
55my $community = "public";
56my $port = 161;
57my @snmpoids;
58my $snmpIfAdminStatus = '1.3.6.1.2.1.2.2.1.7';
59my $snmpIfDescr = '1.3.6.1.2.1.2.2.1.2';
60my $snmpIfOperStatus = '1.3.6.1.2.1.2.2.1.8';
61my $snmpIfName = '1.3.6.1.2.1.31.1.1.1.1';
62my $snmpIfAlias = '1.3.6.1.2.1.31.1.1.1.18';
63my $snmpLocIfDescr = '1.3.6.1.4.1.9.2.2.1.1.28';
64my $hostname;
65my $session;
66my $error;
67my $response;
68my %ifStatus;
69my $ifup =0 ;
70my $ifdown =0;
71my $ifdormant = 0;
72my $ifmessage = "";
73my $snmp_version = 1;
74my $ifXTable;
75my $opt_h ;
76my $opt_V ;
77
78
79
80
81
82# Just in case of problems, let's not hang Nagios
83$SIG{'ALRM'} = sub {
84 print ("ERROR: No snmp response from $hostname (alarm timeout)\n");
85 exit $ERRORS{"UNKNOWN"};
86};
87alarm($TIMEOUT);
88
89
90
91#Option checking
92$status = GetOptions(
93 "V" => \$opt_V, "version" => \$opt_V,
94 "h" => \$opt_h, "help" => \$opt_h,
95 "v=i" => \$snmp_version, "snmp_version=i" => \$snmp_version,
96 "C=s" =>\$community,"community=s" => \$community,
97 "p=i" =>\$port, "port=i" => \$port,
98 "H=s" => \$hostname, "hostname=s" => \$hostname,
99 "I" => \$ifXTable, "ifmib" => \$ifXTable );
100
101if ($status == 0)
102{
103 print_help() ;
104 exit $ERRORS{'OK'};
105}
106
107
108if ($opt_V) {
109 print_revision($PROGNAME,'$Revision$ ');
110 exit $ERRORS{'OK'};
111}
112
113if ($opt_h) {
114 print_help();
115 exit $ERRORS{'OK'};
116}
117
118if (! utils::is_hostname($hostname)){
119 usage();
120 exit $ERRORS{"UNKNOWN"};
121}
122
123if ( ! $snmp_version ) {
124 $snmp_version =1 ;
125}else{
126 if ( $snmp_version =~ /[12]/ ) {
127
128 ($session, $error) = Net::SNMP->session(
129 -hostname => $hostname,
130 -community => $community,
131 -port => $port,
132 -version => $snmp_version
133 );
134
135 if (!defined($session)) {
136 $state='UNKNOWN';
137 $answer=$error;
138 print ("$state: $answer");
139 exit $ERRORS{$state};
140 }
141
142
143 }elsif ( $snmp_version =~ /3/ ) {
144 $state='UNKNOWN';
145 print ("$state: No support for SNMP v3 yet\n");
146 exit $ERRORS{$state};
147 }else{
148 $state='UNKNOWN';
149 print ("$state: No support for SNMP v$snmp_version yet\n");
150 exit $ERRORS{$state};
151 }
152}
153
154
155
156push(@snmpoids,$snmpIfOperStatus);
157push(@snmpoids,$snmpIfAdminStatus);
158push(@snmpoids,$snmpIfDescr);
159push(@snmpoids,$snmpIfName) if ( defined $ifXTable);
160
161
162
163foreach $snmpoid (@snmpoids) {
164
165 if (!defined($response = $session->get_table($snmpoid))) {
166 $answer=$session->error;
167 $session->close;
168 $state = 'CRITICAL';
169 print ("$state: $answer for $snmpoid with snmp version $snmp_version\n");
170 exit $ERRORS{$state};
171 }
172
173 foreach $snmpkey (keys %{$response}) {
174 $snmpkey =~ /.*\.(\d+)$/;
175 $key = $1;
176 $ifStatus{$key}{$snmpoid} = $response->{$snmpkey};
177 }
178}
179
180
181$session->close;
182
183foreach $key (keys %ifStatus) {
184
185 # check only if interface is administratively up
186 if ($ifStatus{$key}{$snmpIfAdminStatus} == 1 ) {
187 if ($ifStatus{$key}{$snmpIfOperStatus} == 1 ) { $ifup++ ;}
188 if ($ifStatus{$key}{$snmpIfOperStatus} == 2 ) {
189 $ifdown++ ;
190 $ifmessage .= sprintf("%s: down -> %s<BR>",
191 $ifStatus{$key}{$snmpIfDescr},
192 $ifStatus{$key}{$snmpIfName});
193
194 }
195 if ($ifStatus{$key}{$snmpIfOperStatus} == 5 ) { $ifdormant++ ;}
196 }
197 }
198
199
200 if ($ifdown > 0) {
201 $state = 'CRITICAL';
202 $answer = sprintf("host '%s', interfaces up: %d, down: %d, dormant: %d<BR>",
203 $hostname,
204 $ifup,
205 $ifdown,
206 $ifdormant);
207 $answer = $answer . $ifmessage . "\n";
208 }
209 else {
210 $state = 'OK';
211 $answer = sprintf("host '%s', interfaces up: %d, down: %d, dormant: %d\n",
212 $hostname,
213 $ifup,
214 $ifdown,
215 $ifdormant);
216 }
217
218print ("$state: $answer");
219exit $ERRORS{$state};
220
221
222sub usage {
223 printf "\nMissing arguments!\n";
224 printf "\n";
225 printf "check_ifstatus -C <READCOMMUNITY> -p <PORT> -H <HOSTNAME>\n";
226 printf "Copyright (C) 2000 Christoph Kron\n";
227 printf "Updates 5/2002 Subhendu Ghosh\n";
228 printf "\n\n";
229 support();
230 exit $ERRORS{"UNKNOWN"};
231}
232
233sub print_help {
234 printf "check_ifstatus plugin for Nagios monitors operational \n";
235 printf "status of each network interface on the target host\n";
236 printf "\nUsage:\n";
237 printf " -H (--hostname) Hostname to query - (required)\n";
238 printf " -C (--community) SNMP read community (defaults to public,\n";
239 printf " used with SNMP v1 and v2c\n";
240 printf " -v (--snmp_version) 1 for SNMP v1 (default)\n";
241 printf " 2 for SNMP v2c\n";
242 printf " SNMP v2c will use get_bulk for less overhead\n";
243 printf " -p (--port) SNMP port (default 161)\n";
244 printf " -I (--ifmib) Agent supports IFMIB ifXTable. Do not use if\n";
245 printf " you don't know what this is.\n";
246 printf " -V (--version) Plugin version\n";
247 printf " -h (--help) usage help \n\n";
248 print_revision($PROGNAME, '$Revision$');
249
250}