diff options
Diffstat (limited to 'plugins/tests/check_snmp_agent.pl')
| -rw-r--r-- | plugins/tests/check_snmp_agent.pl | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/plugins/tests/check_snmp_agent.pl b/plugins/tests/check_snmp_agent.pl new file mode 100644 index 0000000..38912e9 --- /dev/null +++ b/plugins/tests/check_snmp_agent.pl @@ -0,0 +1,111 @@ +#! /usr/bin/perl -w -I .. +# +# Subagent for testing check_snmp +# + +#use strict; # Doesn't work +use NetSNMP::OID qw(:all); +use NetSNMP::agent; +use NetSNMP::ASN qw(ASN_OCTET_STR ASN_COUNTER ASN_COUNTER64 ASN_INTEGER ASN_INTEGER64 ASN_UNSIGNED ASN_UNSIGNED64); +#use Math::Int64 qw(uint64); # Skip that module while we don't need it +sub uint64 { return $_ } + +if (!$agent) { + print "This program must run as an embedded NetSNMP agent\n"; + exit 1; +} + +my $baseoid = '.1.3.6.1.4.1.8072.3.2.67'; +my $multiline = 'Cisco Internetwork Operating System Software +IOS (tm) Catalyst 4000 "L3" Switch Software (cat4000-I9K91S-M), Version +12.2(20)EWA, RELEASE SOFTWARE (fc1) +Technical Support: http://www.cisco.com/techsupport +Copyright (c) 1986-2004 by cisco Systems, Inc. +'; +my $multilin2 = "Kisco Outernetwork Oserating Gystem Totware +Copyleft (c) 2400-2689 by kisco Systrems, Inc."; +my $multilin3 = 'This should not confuse check_snmp "parser" +into thinking there is no 2nd line'; +my $multilin4 = 'It\'s getting even harder if the line +ends with with this: C:\\'; +my $multilin5 = 'And now have fun with with this: "C:\\" +because we\'re not done yet!'; + +# Next are arrays of indexes (Type, initial value and increments) +# 0..19 <---- please update comment when adding/removing fields +my @fields = (ASN_OCTET_STR, ASN_OCTET_STR, ASN_OCTET_STR, ASN_OCTET_STR, ASN_OCTET_STR, ASN_UNSIGNED, ASN_UNSIGNED, ASN_COUNTER, ASN_COUNTER64, ASN_UNSIGNED, ASN_COUNTER, ASN_OCTET_STR, ASN_OCTET_STR, ASN_OCTET_STR, ASN_OCTET_STR, ASN_OCTET_STR, ASN_INTEGER, ASN_OCTET_STR, ASN_OCTET_STR, ASN_INTEGER ); +my @values = ($multiline, $multilin2, $multilin3, $multilin4, $multilin5, 4294965296, 1000, 4294965296, uint64("18446744073709351616"), int(rand(2**32)), 64000, "stringtests", "3.5", "87.4startswithnumberbutshouldbestring", '555"I said"', 'CUSTOM CHECK OK: foo is 12345', -2, '-4', '-6.6', 42 ); +# undef increments are randomized +my @incrts = (undef, undef, undef, undef, undef, 1000, -500, 1000, 100000, undef, 666, undef, undef, undef, undef, undef, -1, undef, undef, 0 ); + +# Number of elements in our OID +my $oidelts; +{ + my @oid = split(/\./, $baseoid); + $oidelts = scalar(@oid); +} + +my $regoid = new NetSNMP::OID($baseoid); +$agent->register('check_snmp_agent', $regoid, \&my_snmp_handler); + +sub my_snmp_handler { + my ($handler, $registration_info, $request_info, $requests) = @_; + + for (my $request = $requests; $request; $request = $request->next) { + my $oid = $request->getOID(); + my $index; + my $next_index; + + # Validate the OID + my @numarray = $oid->to_array(); + if (@numarray != $oidelts) { + if ($request_info->getMode() == MODE_GETNEXT && @numarray == ($oidelts - 1)) { + # GETNEXT for the base oid; set it to the first index + push(@numarray, 0); + $next_index = 0; + } else { + # We got a request for the base OID or with extra elements + $request->setError($request_info, SNMP_ERR_NOERROR); + next; + } + } + + $index = pop(@numarray); + if ($index >= scalar(@fields)) { + # Index is out of bounds + $request->setError($request_info, SNMP_ERR_NOERROR); + next; + } + + # Handle the request + if ($request_info->getMode() == MODE_GETNEXT) { + if (++$index >= scalar(@fields)) { + # Index will grow out of bounds + $request->setError($request_info, SNMP_ERR_NOERROR); + next; + } + $index = (defined($next_index) ? $next_index : $index); + $request->setOID("$baseoid.$index"); + } elsif ($request_info->getMode() != MODE_GET) { + # Everything else is write-related modes + $request->setError($request_info, SNMP_ERR_READONLY); + next; + } + + # Set the response... setValue is a bit touchy about the data type, but accepts plain strings. + my $value = sprintf("%s", $values[$index]); + $request->setValue($fields[$index], $value); + + # And update the value + if (defined($incrts[$index])) { + $values[$index] += $incrts[$index]; + } elsif ($fields[$index] != ASN_OCTET_STR) { + my $minus = int(rand(2))*-1; + $minus = 1 unless ($minus); + my $exp = 32; + $exp = 64 if ($fields[$index] == ASN_COUNTER64 || $fields[$index] == ASN_INTEGER64 || $fields[$index] == ASN_UNSIGNED64); + $values[$index] = int(rand(2**$exp)); + } + } +} + |