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centreon-plugins
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add snmp discovery in linux local

This commit is contained in:
Colin Gagnaire 2019-04-10 18:28:02 +02:00
parent d7916a7274
commit bf3a89b9fb
3 changed files with 202 additions and 22 deletions
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46
centreon-plugins/centreon/plugins/snmp.pm
View File

@ -43,28 +43,30 @@ sub new {
$options{output}->option_exit();
}
$options{options}->add_options(arguments => {
"hostname|host:s" => { name => 'host' },
"snmp-community:s" => { name => 'snmp_community', default => 'public' },
"snmp-version:s" => { name => 'snmp_version', default => 1 },
"snmp-port:s" => { name => 'snmp_port', default => 161 },
"snmp-timeout:s" => { name => 'snmp_timeout', default => 1 },
"snmp-retries:s" => { name => 'snmp_retries', default => 5 },
"maxrepetitions:s" => { name => 'maxrepetitions', default => 50 },
"subsetleef:s" => { name => 'subsetleef', default => 50 },
"subsettable:s" => { name => 'subsettable', default => 100 },
"snmp-autoreduce:s" => { name => 'snmp_autoreduce' },
"snmp-force-getnext" => { name => 'snmp_force_getnext' },
"snmp-username:s" => { name => 'snmp_security_name' },
"authpassphrase:s" => { name => 'snmp_auth_passphrase' },
"authprotocol:s" => { name => 'snmp_auth_protocol' },
"privpassphrase:s" => { name => 'snmp_priv_passphrase' },
"privprotocol:s" => { name => 'snmp_priv_protocol' },
"contextname:s" => { name => 'snmp_context_name' },
"contextengineid:s" => { name => 'snmp_context_engine_id' },
"securityengineid:s" => { name => 'snmp_security_engine_id' },
"snmp-errors-exit:s" => { name => 'snmp_errors_exit', default => 'unknown' },
});
if (!defined($options{noptions})) {
$options{options}->add_options(arguments => {
"hostname|host:s" => { name => 'host' },
"snmp-community:s" => { name => 'snmp_community', default => 'public' },
"snmp-version:s" => { name => 'snmp_version', default => 1 },
"snmp-port:s" => { name => 'snmp_port', default => 161 },
"snmp-timeout:s" => { name => 'snmp_timeout', default => 1 },
"snmp-retries:s" => { name => 'snmp_retries', default => 5 },
"maxrepetitions:s" => { name => 'maxrepetitions', default => 50 },
"subsetleef:s" => { name => 'subsetleef', default => 50 },
"subsettable:s" => { name => 'subsettable', default => 100 },
"snmp-autoreduce:s" => { name => 'snmp_autoreduce' },
"snmp-force-getnext" => { name => 'snmp_force_getnext' },
"snmp-username:s" => { name => 'snmp_security_name' },
"authpassphrase:s" => { name => 'snmp_auth_passphrase' },
"authprotocol:s" => { name => 'snmp_auth_protocol' },
"privpassphrase:s" => { name => 'snmp_priv_passphrase' },
"privprotocol:s" => { name => 'snmp_priv_protocol' },
"contextname:s" => { name => 'snmp_context_name' },
"contextengineid:s" => { name => 'snmp_context_engine_id' },
"securityengineid:s" => { name => 'snmp_security_engine_id' },
"snmp-errors-exit:s" => { name => 'snmp_errors_exit', default => 'unknown' },
});
}
$options{options}->add_help(package => __PACKAGE__, sections => 'SNMP OPTIONS');
#####

177
centreon-plugins/os/linux/local/mode/discoverysnmp.pm Normal file
View File

@ -0,0 +1,177 @@
#
# Copyright 2019 Centreon (http://www.centreon.com/)
#
# Centreon is a full-fledged industry-strength solution that meets
# the needs in IT infrastructure and application monitoring for
# service performance.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
package os::linux::local::mode::discoverysnmp;
use base qw(centreon::plugins::mode);
use strict;
use warnings;
use centreon::plugins::snmp;
use NetAddr::IP;
use JSON::XS;
sub new {
my ($class, %options) = @_;
my $self = $class->SUPER::new(package => __PACKAGE__, %options);
bless $self, $class;
$self->{version} = '1.0';
$options{options}->add_options(arguments => {
"subnet:s" => { name => 'subnet' },
"snmp-port:s" => { name => 'snmp_port' },
"snmp-version:s@" => { name => 'snmp_version' },
"snmp-community:s@" => { name => 'snmp_community' },
"snmp-timeout:s" => { name => 'snmp_timeout', default => 1 },
"prettify" => { name => 'prettify' },
});
$self->{snmp} = centreon::plugins::snmp->new(%options, noptions => 1);
return $self;
}
sub check_options {
my ($self, %options) = @_;
$self->SUPER::init(%options);
if (!defined($self->{option_results}->{subnet}) ||
$self->{option_results}->{subnet} !~ /(\d+)\.(\d+)\.(\d+)\.(\d+)\/(\d+)/) {
$self->{output}->add_option_msg(short_msg => "Need to specify --subnet option (<ip>/<cidr>).");
$self->{output}->option_exit();
}
if (!defined($self->{option_results}->{snmp_port}) || $self->{option_results}->{snmp_port} eq '') {
$self->{output}->add_option_msg(short_msg => "Need to specify --snmp-port option.");
$self->{output}->option_exit();
}
if (!defined($self->{option_results}->{snmp_community}) || $self->{option_results}->{snmp_community} eq '') {
$self->{output}->add_option_msg(short_msg => "Need to specify --snmp-community option.");
$self->{output}->option_exit();
}
if (!defined($self->{option_results}->{snmp_version}) || $self->{option_results}->{snmp_version} eq '') {
$self->{output}->add_option_msg(short_msg => "Need to specify --snmp-version option.");
$self->{output}->option_exit();
}
if (!defined($self->{option_results}->{snmp_timeout}) || $self->{option_results}->{snmp_timeout} !~ /(\d+)/) {
$self->{output}->add_option_msg(short_msg => "Need to specify --snmp-timeout option.");
$self->{output}->option_exit();
}
$self->{snmp}->set_snmp_connect_params(Timeout => $self->{option_results}->{snmp_timeout} * (10**6));
$self->{snmp}->set_snmp_connect_params(Retries => 0);
$self->{snmp}->set_snmp_params(subsetleef => 1);
$self->{snmp}->set_snmp_params(snmp_autoreduce => 0);
$self->{snmp}->set_snmp_params(snmp_errors_exit => 'unknown');
}
sub define_type {
my ($self, %options) = @_;
return "linux" if ($options{desc} =~ /linux/i);
return "windows" if ($options{desc} =~ /windows/i);
return "unknown";
}
sub snmp_request {
my ($self, %options) = @_;
$self->{snmp}->set_snmp_connect_params(DestHost => $options{ip});
$self->{snmp}->set_snmp_connect_params(Community => $options{community});
$self->{snmp}->set_snmp_connect_params(Version => $options{version});
$self->{snmp}->set_snmp_connect_params(RemotePort => $options{port});
$self->{snmp}->connect();
return $self->{snmp}->get_leef(oids => [ $self->{oid_sysDescr}, $self->{oid_sysName} ],
nothing_quit => 0, dont_quit => 1);
}
sub run {
my ($self, %options) = @_;
$self->{oid_sysDescr} = ".1.3.6.1.2.1.1.1.0";
$self->{oid_sysName} = ".1.3.6.1.2.1.1.5.0";
my @disco_data;
my $disco_stats;
my $last_version;
my $last_community;
my $subnet = NetAddr::IP->new($self->{option_results}->{subnet});
$disco_stats->{start_time} = time();
foreach my $ip (@{$subnet->splitref($subnet->bits())}) {
my $result;
foreach my $community (@{$self->{option_results}->{snmp_community}}) {
foreach my $version (@{$self->{option_results}->{snmp_version}}) {
$result = $self->snmp_request(ip => $ip->addr, community => $community, version => $version,
port => $self->{option_results}->{snmp_port});
$last_version = $version;
$last_community = $community;
last if (defined($result));
}
}
next if (!defined($result) || $result eq '');
my %host;
$host{type} = $self->define_type(desc => $result->{$self->{oid_sysDescr}});
$host{desc} = $result->{$self->{oid_sysDescr}};
$host{ip} = $ip->addr;
$host{hostname} = $result->{$self->{oid_sysName}};
$host{snmp_version} = $last_version;
$host{snmp_community} = $last_community;
$host{snmp_port} = $self->{option_results}->{snmp_port};
push @disco_data, \%host;
}
$disco_stats->{end_time} = time();
$disco_stats->{duration} = $disco_stats->{end_time} - $disco_stats->{start_time};
$disco_stats->{discovered_items} = @disco_data;
$disco_stats->{results} = \@disco_data;
my $encoded_data;
eval {
if (defined($self->{option_results}->{prettify})) {
$encoded_data = JSON::XS->new->utf8->pretty->encode($disco_stats);
} else {
$encoded_data = JSON::XS->new->utf8->encode($disco_stats);
}
};
if ($@) {
$encoded_data = '{"code":"encode_error","message":"Cannot encode discovered data into JSON format"}';
}
$self->{output}->output_add(short_msg => $encoded_data);
$self->{output}->display(nolabel => 1, force_ignore_perfdata => 1);
$self->{output}->exit();
}
1;
__END__
=head1 MODE
Resources discovery.
=over 8
=back
=cut

1
centreon-plugins/os/linux/local/plugin.pm
View File

@ -36,6 +36,7 @@ sub new {
'cmd-return' => 'os::linux::local::mode::cmdreturn',
'connections' => 'os::linux::local::mode::connections',
'directlvm-usage' => 'os::linux::local::mode::directlvmusage',
'discovery-snmp' => 'os::linux::local::mode::discoverysnmp',
'diskio' => 'os::linux::local::mode::diskio',
'files-size' => 'os::linux::local::mode::filessize',
'files-date' => 'os::linux::local::mode::filesdate',