pandorafms/pandora_server/util/pandora_xml_stress.pl

297 lines
10 KiB
Perl
Executable File

#!/usr/bin/perl
################################################################################
# Pandora XML Stress tool.
################################################################################
# Copyright (c) 2009 Ramon Novoa, rnovoa@artica.es
# Copyright (c) 2009 Artica Soluciones Tecnologicas S.L.
#
# 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; version 2
# 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
################################################################################
use strict;
use warnings;
use threads;
use threads::shared;
use Time::Local;
use Time::HiRes qw(gettimeofday);
use POSIX qw (strftime ceil);
# Global variables used for statistics
my $Agents :shared = 0;
my $Modules :shared = 0;
my $XMLFiles :shared = 0;
my $LogLock :shared;
################################################################################
# Load the configuration file.
################################################################################
sub load_config ($\%\@) {
my ($conf_file, $conf, $modules) = @_;
open (FILE, "<", $conf_file) || die ("[error] Could not open configuration file '$conf_file': $!.\n\n");
while (my $line = <FILE>) {
# A module definition
if ($line =~ m/module_begin/) {
my %module;
# A comment
next if ($line =~ m/^#/);
while (my $line = <FILE>) {
# A comment
next if ($line =~ m/^#/);
last if ($line =~ m/module_end/);
# Unknown line
next if ($line !~ /^\s*(\w+)\s+(.+)$/);
$module{$1} = $2;
}
push (@{$modules}, \%module);
$Modules++;
next;
}
# Unknown line
next if ($line !~ /^\s*(\w+)\s+(.+)$/);
$conf->{$1} = $2;
}
close (FILE);
}
################################################################################
# Generate XML files.
################################################################################
sub generate_xml_files ($$$$$) {
my ($agents, $start, $step, $conf, $modules) = @_;
# Read agent configuration
my $interval = get_conf_token ($conf, 'agent_interval', '300');
my $xml_version = get_conf_token ($conf, 'xml_version', '1.0');
my $encoding = get_conf_token ($conf, 'encoding', 'ISO-8859-1');
my $os_name = get_conf_token ($conf, 'os_name', 'Linux');
my $os_version = get_conf_token ($conf, 'os_version', '2.6');
my $temporal = get_conf_token ($conf, 'temporal', '/tmp');
my $startup_delay = get_conf_token ($conf, 'startup_delay', '5');
# Get time_from
my $time_now = strftime ("%Y-%m-%d %H:%M:%S", localtime ());
my $time_from = get_conf_token ($conf, 'time_from', $time_now);
die ("[error] Invalid time_from: $time_from\n\n") unless ($time_from =~ /(\d+)\-(\d+)\-(\d+) +(\d+):(\d+):(\d+)/);
my $utimestamp_from = timelocal($6, $5, $4, $3, $2 - 1, $1 - 1900);
# Get time_to
my $time_to = get_conf_token ($conf, 'time_to', $time_now);
die ("[error] Invalid time_to: $time_to\n\n") unless ($time_to =~ /(\d+)\-(\d+)\-(\d+) +(\d+):(\d+):(\d+)/);
my $utimestamp_to = timelocal($6, $5, $4, $3, $2 - 1, $1 - 1900);
# Generate data files
my $utimestamp = $utimestamp_from;
while ($utimestamp <= $utimestamp_to) {
for (my $i = $start; $i < $start + $step; $i++) {
# Get the name of the agent
last unless defined ($agents->[$i]);
my $agent_name = $agents->[$i];
# XML header
my $timestamp = strftime ("%Y-%m-%d %H:%M:%S", localtime ($utimestamp));
my $xml_data = "<?xml version='$xml_version' encoding='$encoding'?>\n";
$xml_data .= "<agent_data os_name='$os_name' os_version='$os_version' interval='$interval' version='$os_version' timestamp='$timestamp' agent_name='$agent_name'>\n";
foreach my $module (@{$modules}) {
# Skip unnamed modules
my $module_name = get_conf_token ($module, 'module_name', '');
next if ($module_name eq '');
# Read module configuration
my $module_type = get_conf_token ($module, 'module_type', 'generic_data');
my $module_description = get_conf_token ($module, 'module_description', '');
my $module_min = get_conf_token ($module, 'module_min', '0');
my $module_max = get_conf_token ($module, 'module_max', '255');
my $module_variation = get_conf_token ($module, 'module_variation', '100');
my $module_data = get_conf_token ($module, 'module_data', '');
# Generate module data
$xml_data .= "\t<module>\n";
$xml_data .= "\t\t<name>$module_name</name>\n";
$xml_data .= "\t\t<description>$module_description</description>\n";
$xml_data .= "\t\t<type>$module_type</type>\n";
my $rnd_data = generate_random_data ($module_type, $module_data, $module_min, $module_max, $module_variation);
$module->{'module_data'} = $rnd_data;
$xml_data .= "\t\t<data>$rnd_data</data>\n";
$xml_data .= "\t</module>\n";
}
$xml_data .= "</agent_data>\n";
# Fix the temporal path
my $last_char = chop ($temporal);
$temporal .= $last_char if ($last_char ne '/');
# Save the XML data file
my $xml_file = $temporal . '/' . $agent_name . '_' . $utimestamp . '.data';
open (FILE, ">", $xml_file) || die ("[error] Could not write to '$xml_file': $!.\n\n");
print FILE $xml_data;
close (FILE);
copy_xml_file ($conf, $xml_file);
$XMLFiles++;
}
# First run, let the server create the new agent before sending more data
if ($utimestamp == $utimestamp_from) {
threads->yield ();
sleep ($startup_delay);
}
$utimestamp += $interval;
}
}
################################################################################
# Generates random data according to the module type.
################################################################################
sub generate_random_data ($$$$$) {
my ($module_type, $current_data, $min, $max, $variation) = @_;
my $change_rnd = int rand (100);
return $current_data unless ($variation > $change_rnd) or $current_data eq '';
# String
if ($module_type =~ m/string/) {
my @chars = ("A" .. "Z","a" .. "z", 0..9);
return join ("", @chars[map {rand @chars} (1..(rand ($max - $min + 1) + $min))]);
}
# Proc
if ($module_type =~ m/proc/) {
return int rand (2);
}
# Generic data
return int (rand ($max - $min + 1) + $min);
}
################################################################################
# Returns the value of a configuration token.
################################################################################
sub copy_xml_file ($$) {
my ($conf, $file) = @_;
my $server_ip = get_conf_token ($conf, 'server_ip', '');
return if ($server_ip eq '');
my $server_port = get_conf_token ($conf, 'server_port', '41121');
my $tentacle_opts = get_conf_token ($conf, 'tentacle_opts', '');
# Send the file and delete it
`tentacle_client -a $server_ip -p $server_port $tentacle_opts $file > /dev/null 2>&1`;
unlink ($file);
}
################################################################################
# Returns the value of a configuration token.
################################################################################
sub get_conf_token ($$$) {
my ($hash_ref, $token, $def_value) = @_;
return $def_value unless ref ($hash_ref) and defined ($hash_ref->{$token});
return $hash_ref->{$token};
}
################################################################################
# Prints a message to the logfile.
################################################################################
sub log_message ($$) {
my ($conf, $message) = @_;
my $utimestamp = time ();
my $log_file = get_conf_token ($conf, 'log_file', '');
# Log to stdout
if ($log_file eq '') {
print "[$utimestamp] $message\n";
return;
}
# Log to file
{
lock $LogLock;
open (LOG_FILE, '>>', $log_file) || die ("[error] Could not open log file '$log_file': $!.\n\n");
print LOG_FILE "[$utimestamp] $message\n";
close (LOG_FILE);
}
}
################################################################################
# Main
################################################################################
my (%conf, @modules);
# Check command line parameters
if ($#ARGV != 0) {
print "Usage:\n\t$0 <configuration file>\n\n";
exit 1;
}
# Load configuration file
load_config ($ARGV[0], %conf, @modules);
die ("[error] No agent file specified in configuration file.\n\n") unless defined ($conf{'agent_file'});
open (FILE, "<", $conf{'agent_file'}) || die ("[error] Could not open agent configuration file '" . $conf{'agent_file'} . "': $!.\n\n");
# Read agent names
my @agents;
while (my $agent_name = <FILE>) {
chomp ($agent_name);
push (@agents, $agent_name);
$Agents++;
}
close (FILE);
# Get the maximum number of threads and the number of agents per thread
my $max_threads = get_conf_token (\%conf, 'max_threads', '10');
$max_threads = 10 unless ($max_threads > 0);
my $step = ceil ($Agents / $max_threads);
my $t0 = gettimeofday ();
for (my $i = 0; $i < $Agents; $i += $step) {
threads->create (\&generate_xml_files, \@agents, $i, $step, \%conf, \@modules);
}
# Log some information for the user
my $time_now = strftime ("%Y-%m-%d %H:%M:%S", localtime ());
my $time_from = get_conf_token (\%conf, 'time_from', $time_now);
my $time_to = get_conf_token (\%conf, 'time_to', $time_now);
my $interval = get_conf_token (\%conf, 'interval', '300');
log_message (\%conf, "Generating XML data files for $Agents agents from $time_from to $time_to interval $interval.");
# Wait for all threads to finish
foreach my $thr (threads->list(threads::all)) {
$thr->join ();
}
my $t1 = gettimeofday ();
# Log statistics
log_message (\%conf, "\tTotal agents:\t$Agents\n\t\tTotal modules:\t" . ($Agents * $Modules) . "\t($Modules per agent)\n\t\tTotal XML:\t$XMLFiles\t(" . int ($XMLFiles / ($t1 - $t0)) . " per second)");