From 95ece573034369e2372a03b2fe5447fb96e24dfa Mon Sep 17 00:00:00 2001
From: Quentin Garnier <qgarnier@merethis.com>
Date: Thu, 20 Mar 2014 16:44:10 +0100
Subject: [PATCH] Refs #5379 Initial work on linux local mode diskio

---
 os/linux/local/mode/diskio.pm | 371 ++++++++++++++++++++++++++++++++++
 os/linux/local/plugin.pm      |   1 +
 2 files changed, 372 insertions(+)
 create mode 100644 os/linux/local/mode/diskio.pm

diff --git a/os/linux/local/mode/diskio.pm b/os/linux/local/mode/diskio.pm
new file mode 100644
index 000000000..d4aca11f5
--- /dev/null
+++ b/os/linux/local/mode/diskio.pm
@@ -0,0 +1,371 @@
+################################################################################
+# Copyright 2005-2014 MERETHIS
+# Centreon is developped by : Julien Mathis and Romain Le Merlus under
+# GPL Licence 2.0.
+# 
+# This program is free software; you can redistribute it and/or modify it under 
+# the terms of the GNU General Public License as published by the Free Software 
+# Foundation ; either version 2 of the License.
+# 
+# This program is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
+# PARTICULAR PURPOSE. See the GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License along with 
+# this program; if not, see <http://www.gnu.org/licenses>.
+# 
+# Linking this program statically or dynamically with other modules is making a 
+# combined work based on this program. Thus, the terms and conditions of the GNU 
+# General Public License cover the whole combination.
+# 
+# As a special exception, the copyright holders of this program give MERETHIS 
+# permission to link this program with independent modules to produce an executable, 
+# regardless of the license terms of these independent modules, and to copy and 
+# distribute the resulting executable under terms of MERETHIS choice, provided that 
+# MERETHIS also meet, for each linked independent module, the terms  and conditions 
+# of the license of that module. An independent module is a module which is not 
+# derived from this program. If you modify this program, you may extend this 
+# exception to your version of the program, but you are not obliged to do so. If you
+# do not wish to do so, delete this exception statement from your version.
+# 
+# For more information : contact@centreon.com
+# Authors : Quentin Garnier <qgarnier@merethis.com>
+#
+####################################################################################
+
+package os::linux::local::mode::diskio;
+
+use base qw(centreon::plugins::mode);
+
+use strict;
+use warnings;
+use centreon::plugins::misc;
+use centreon::plugins::statefile;
+use Digest::MD5 qw(md5_hex);
+
+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 =>
+                                {
+                                  "hostname:s"        => { name => 'hostname' },
+                                  "remote"            => { name => 'remote' },
+                                  "ssh-option:s@"     => { name => 'ssh_option' },
+                                  "ssh-path:s"        => { name => 'ssh_path' },
+                                  "ssh-command:s"     => { name => 'ssh_command', default => 'ssh' },
+                                  "timeout:s"         => { name => 'timeout', default => 30 },
+                                  "sudo"              => { name => 'sudo' },
+                                  "command:s"         => { name => 'command', default => 'tail' },
+                                  "command-path:s"    => { name => 'command_path', },
+                                  "command-options:s" => { name => 'command_options', default => '-n +1 /proc/stat /proc/diskstats 2>&1' },
+                                  "warning-bytes-read:s"    => { name => 'warning_bytes_read' },
+                                  "critical-bytes-read:s"   => { name => 'critical_bytes_read' },
+                                  "warning-bytes-write:s"   => { name => 'warning_bytes_write' },
+                                  "critical-bytes-write:s"  => { name => 'critical_bytes_write' },
+                                  "warning-utils:s"         => { name => 'warning_utils' },
+                                  "critical-utils:s"        => { name => 'critical_utils' },
+                                  "name:s"                  => { name => 'name' },
+                                  "regexp"                  => { name => 'use_regexp' },
+                                  "regexp-isensitive"       => { name => 'use_regexpi' },
+                                  "interrupt-frequency:s"   => { name => 'interrupt_frequency', default => 1000 },
+                                  "bytes_per_sector:s"      => { name => 'bytes_per_sector', default => 512 },
+                                });
+    $self->{result} = { cpu => {}, total_cpu => 0, disks => {} };
+    $self->{hostname} = undef;
+    $self->{statefile_value} = centreon::plugins::statefile->new(%options);
+    return $self;
+}
+
+sub check_options {
+    my ($self, %options) = @_;
+    $self->SUPER::init(%options);
+
+    if (($self->{perfdata}->threshold_validate(label => 'warning-bytes-read', value => $self->{option_results}->{warning_bytes_read})) == 0) {
+        $self->{output}->add_option_msg(short_msg => "Wrong warning-bytes-read threshold '" . $self->{option_results}->{warning_bytes_read} . "'.");
+        $self->{output}->option_exit();
+    }
+    if (($self->{perfdata}->threshold_validate(label => 'critical-bytes-read', value => $self->{option_results}->{critical_bytes_read})) == 0) {
+        $self->{output}->add_option_msg(short_msg => "Wrong critical-bytes-read threshold '" . $self->{option_results}->{critical_bytes_read} . "'.");
+        $self->{output}->option_exit();
+    }
+    if (($self->{perfdata}->threshold_validate(label => 'warning-bytes-write', value => $self->{option_results}->{warning_bytes_write})) == 0) {
+        $self->{output}->add_option_msg(short_msg => "Wrong warning-bytes-write threshold '" . $self->{option_results}->{warning_bytes_write} . "'.");
+        $self->{output}->option_exit();
+    }
+    if (($self->{perfdata}->threshold_validate(label => 'critical-bytes-write', value => $self->{option_results}->{critical_bytes_write})) == 0) {
+        $self->{output}->add_option_msg(short_msg => "Wrong critical-bytes-write threshold '" . $self->{option_results}->{critical_bytes_writes} . "'.");
+        $self->{output}->option_exit();
+    }
+    if (($self->{perfdata}->threshold_validate(label => 'warning-utils', value => $self->{option_results}->{warning_utils})) == 0) {
+        $self->{output}->add_option_msg(short_msg => "Wrong warning-utils threshold '" . $self->{option_results}->{warning_utils} . "'.");
+        $self->{output}->option_exit();
+    }
+    if (($self->{perfdata}->threshold_validate(label => 'critical-utils', value => $self->{option_results}->{critical_utils})) == 0) {
+        $self->{output}->add_option_msg(short_msg => "Wrong critical-utils threshold '" . $self->{option_results}->{critical_utils} . "'.");
+        $self->{output}->option_exit();
+    }
+    
+    $self->{statefile_value}->check_options(%options);
+    $self->{hostname} = $self->{option_results}->{hostname};
+    if (!defined($self->{hostname})) {
+        $self->{hostname} = 'me';
+    }
+}
+
+sub manage_selection {
+    my ($self, %options) = @_;
+
+    my $stdout = centreon::plugins::misc::execute(output => $self->{output},
+                                                  options => $self->{option_results},
+                                                  sudo => $self->{option_results}->{sudo},
+                                                  command => $self->{option_results}->{command},
+                                                  command_path => $self->{option_results}->{command_path},
+                                                  command_options => $self->{option_results}->{command_options});
+    
+    $stdout =~ /\/proc\/stat(.*)\/proc\/diskstats(.*)/msg;
+    my ($cpu_parts, $disk_parts) = ($1, $2);
+    
+    # Manage CPU Parts
+    $cpu_parts =~ /^cpu\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)/ms;
+    $self->{result}->{cpu}->{idle} = $4;
+    $self->{result}->{cpu}->{system} = $3;
+    $self->{result}->{cpu}->{user} = $1;
+    $self->{result}->{cpu}->{iowait} = $5;
+    
+    while ($cpu_parts =~ /^cpu(\d+)/msg) {
+        $self->{result}->{total_cpu}++;
+    }
+    
+    # Manage Disk Parts
+    while ($disk_parts =~ /^\s*(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+/msg) {
+        my ($partition_name, $read_sector, $write_sector, $read_ms, $write_ms, $ms_ticks) = ($3, $6, $10, $7, $11, $13);
+        
+        next if (defined($self->{option_results}->{name}) && defined($self->{option_results}->{use_regexp}) && defined($self->{option_results}->{use_regexpi}) 
+            && $partition_name !~ /$self->{option_results}->{name}/i);
+        next if (defined($self->{option_results}->{name}) && defined($self->{option_results}->{use_regexp}) && !defined($self->{option_results}->{use_regexpi}) 
+            && $partition_name !~ /$self->{option_results}->{name}/);
+        next if (defined($self->{option_results}->{name}) && !defined($self->{option_results}->{use_regexp}) && !defined($self->{option_results}->{use_regexpi})
+            && $partition_name ne $self->{option_results}->{name});
+
+        $self->{result}->{disks}->{$partition_name} = { read_sectors => $read_sector, write_sectors => $write_sector,
+                                                        read_ms => $read_ms, write_ms => $write_ms, ticks => $ms_ticks};
+    }
+    
+    if (scalar(keys %{$self->{result}}) <= 0) {
+        if (defined($self->{option_results}->{name})) {
+            $self->{output}->add_option_msg(short_msg => "No partition found for name '" . $self->{option_results}->{name} . "'.");
+        } else {
+            $self->{output}->add_option_msg(short_msg => "No partition found.");
+        }
+        $self->{output}->option_exit();
+    }
+}
+
+sub run {
+    my ($self, %options) = @_;
+	
+    $self->manage_selection();
+
+    use Data::Dumper;
+    print Data::Dumper::Dumper($self->{result});
+    exit(1);
+    
+    my $new_datas = {};
+    $self->{statefile_value}->read(statefile => "cache_linux_local_" . $self->{hostname}  . '_' . $self->{mode} . '_' . (defined($self->{option_results}->{name}) ? md5_hex($self->{option_results}->{name}) : md5_hex('all')));
+    $new_datas->{last_timestamp} = time();
+    my $old_timestamp = $self->{statefile_value}->get(name => 'last_timestamp');
+    
+    if (!defined($self->{option_results}->{name}) || defined($self->{option_results}->{use_regexp})) {
+        $self->{output}->output_add(severity => 'OK',
+                                    short_msg => 'All traffic are ok.');
+    }
+    
+    foreach my $name (sort(keys %{$self->{result}})) {
+ 
+        $new_datas->{'in_' . $name} = $self->{result}->{$name}->{in} * 8;
+        $new_datas->{'out_' . $name} = $self->{result}->{$name}->{out} * 8;
+        
+        my $old_in = $self->{statefile_value}->get(name => 'in_' . $name);
+        my $old_out = $self->{statefile_value}->get(name => 'out_' . $name);
+        if (!defined($old_timestamp) || !defined($old_in) || !defined($old_out)) {
+            next;
+        }
+        if ($new_datas->{'in_' . $name} < $old_in) {
+            # We set 0. Has reboot.
+            $old_in = 0;
+        }
+        if ($new_datas->{'out_' . $name} < $old_out) {
+            # We set 0. Has reboot.
+            $old_out = 0;
+        }
+
+        my $time_delta = $new_datas->{last_timestamp} - $old_timestamp;
+        if ($time_delta <= 0) {
+            # At least one second. two fast calls ;)
+            $time_delta = 1;
+        }
+        my $in_absolute_per_sec = ($new_datas->{'in_' . $name} - $old_in) / $time_delta;
+        my $out_absolute_per_sec = ($new_datas->{'out_' . $name} - $old_out) / $time_delta;
+        
+        my ($exit, $interface_speed, $in_prct, $out_prct);
+        if (defined($self->{option_results}->{speed}) && $self->{option_results}->{speed} ne '') {
+            $interface_speed = $self->{option_results}->{speed} * 1000000;
+            $in_prct = $in_absolute_per_sec * 100 / ($self->{option_results}->{speed} * 1000000);
+            $out_prct = $out_absolute_per_sec * 100 / ($self->{option_results}->{speed} * 1000000);
+            if ($self->{option_results}->{units} eq '%') {
+                my $exit1 = $self->{perfdata}->threshold_check(value => $in_prct, threshold => [ { label => 'critical-in', 'exit_litteral' => 'critical' }, { label => 'warning-in', exit_litteral => 'warning' } ]);
+                my $exit2 = $self->{perfdata}->threshold_check(value => $out_prct, threshold => [ { label => 'critical-out', 'exit_litteral' => 'critical' }, { label => 'warning-out', exit_litteral => 'warning' } ]);
+                $exit = $self->{output}->get_most_critical(status => [ $exit1, $exit2 ]);
+            }
+            $in_prct = sprintf("%.2f", $in_prct);
+            $out_prct = sprintf("%.2f", $out_prct);
+        } else {
+            my $exit1 = $self->{perfdata}->threshold_check(value => $in_absolute_per_sec, threshold => [ { label => 'critical-in', 'exit_litteral' => 'critical' }, { label => 'warning-in', exit_litteral => 'warning' } ]);
+            my $exit2 = $self->{perfdata}->threshold_check(value => $out_absolute_per_sec, threshold => [ { label => 'critical-out', 'exit_litteral' => 'critical' }, { label => 'warning-out', exit_litteral => 'warning' } ]);
+            $exit = $self->{output}->get_most_critical(status => [ $exit1, $exit2 ]);
+            $in_prct = '-';
+            $out_prct = '-';
+        }
+       
+        ###########
+        # Manage Output
+        ###########
+        
+        my ($in_value, $in_unit) = $self->{perfdata}->change_bytes(value => $in_absolute_per_sec, network => 1);
+        my ($out_value, $out_unit) = $self->{perfdata}->change_bytes(value => $out_absolute_per_sec, network => 1);
+        $self->{output}->output_add(long_msg => sprintf("Interface '%s' Traffic In : %s/s (%s %%), Out : %s/s (%s %%) ", $name,
+                                       $in_value . $in_unit, $in_prct,
+                                       $out_value . $out_unit, $out_prct));
+        if (!$self->{output}->is_status(value => $exit, compare => 'ok', litteral => 1) || (defined($self->{option_results}->{name}) && !defined($self->{option_results}->{use_regexp}))) {
+            $self->{output}->output_add(severity => $exit,
+                                        short_msg => sprintf("Interface '%s' Traffic In : %s/s (%s %%), Out : %s/s (%s %%) ", $name,
+                                            $in_value . $in_unit, $in_prct,
+                                            $out_value . $out_unit, $out_prct));
+        }
+
+        my $extra_label = '';
+        $extra_label = '_' . $name if (!defined($self->{option_results}->{name}) || defined($self->{option_results}->{use_regexp}));
+        $self->{output}->perfdata_add(label => 'traffic_in' . $extra_label, unit => 'b/s',
+                                      value => sprintf("%.2f", $in_absolute_per_sec),
+                                      warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning-in', total => $interface_speed),
+                                      critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical-in', total => $interface_speed),
+                                      min => 0, max => $interface_speed);
+        $self->{output}->perfdata_add(label => 'traffic_out' . $extra_label, unit => 'b/s',
+                                      value => sprintf("%.2f", $out_absolute_per_sec),
+                                      warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning-out', total => $interface_speed),
+                                      critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical-out', total => $interface_speed),
+                                      min => 0, max => $interface_speed);
+    }
+    
+    $self->{statefile_value}->write(data => $new_datas);    
+    if (!defined($old_timestamp)) {
+        $self->{output}->output_add(severity => 'OK',
+                                    short_msg => "Buffer creation...");
+    }
+    
+    $self->{output}->display();
+    $self->{output}->exit();
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+Check some disk io counters:
+read and writes bytes per seconds, milliseconds time spent reading and writing, %util (like iostat) 
+
+=over 8
+
+=item B<--remote>
+
+Execute command remotely in 'ssh'.
+
+=item B<--hostname>
+
+Hostname to query (need --remote).
+
+=item B<--ssh-option>
+
+Specify multiple options like the user (example: --ssh-option='-l=centreon-engine' --ssh-option='-p=52').
+
+=item B<--ssh-path>
+
+Specify ssh command path (default: none)
+
+=item B<--ssh-command>
+
+Specify ssh command (default: 'ssh'). Useful to use 'plink'.
+
+=item B<--timeout>
+
+Timeout in seconds for the command (Default: 30).
+
+=item B<--sudo>
+
+Use 'sudo' to execute the command.
+
+=item B<--command>
+
+Command to get information (Default: 'tail').
+Can be changed if you have output in a file.
+
+=item B<--command-path>
+
+Command path (Default: none).
+
+=item B<--command-options>
+
+Command options (Default: '-n +1 /proc/stat /proc/diskstats 2>&1').
+
+=item B<--warning-bytes-read>
+
+Threshold warning in bytes per seconds read.
+
+=item B<--critical-bytes-read>
+
+Threshold critical in bytes per seconds read.
+
+=item B<--warning-bytes-write>
+
+Threshold warning in bytes per seconds write.
+
+=item B<--critical-bytes-write>
+
+Threshold critical in bytes per seconds write.
+
+=item B<--warning-utils>
+
+Threshold warning in %utils.
+
+=item B<--critical-utils>
+
+Threshold critical in %utils.
+
+=item B<--name>
+
+Set the partition name (empty means 'check all partitions')
+
+=item B<--regexp>
+
+Allows to use regexp to filter partition name (with option --name).
+
+=item B<--regexp-isensitive>
+
+Allows to use regexp non case-sensitive (with --regexp).
+
+=item B<--bytes-per-sector>
+
+Bytes per sector (Default: 512)
+
+=item B<--interrupt-frequency>
+
+Linux Kernel Timer Interrupt Frequency (Default: 1000)
+
+=back
+
+=cut
\ No newline at end of file
diff --git a/os/linux/local/plugin.pm b/os/linux/local/plugin.pm
index 339c536c5..9fdbac863 100644
--- a/os/linux/local/plugin.pm
+++ b/os/linux/local/plugin.pm
@@ -49,6 +49,7 @@ sub new {
     %{$self->{modes}} = (
                          'cpu'              => 'os::linux::local::mode::cpu',
                          'cmd-return'       => 'os::linux::local::mode::cmdreturn',
+                         'diskio'           => 'os::linux::local::mode::diskio',
                          'files-size'       => 'os::linux::local::mode::filessize',
                          'files-date'       => 'os::linux::local::mode::filesdate',
                          'inodes'           => 'os::linux::local::mode::inodes',