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# Author(s): Tomas PLESNIK <plesnik@ics.muni.cz>
# Jan SOUKAL <soukal@ics.muni.cz>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name of the Cesnet z.s.p.o nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# This software is provided ``as is'', and any express or implied
# warranties, including, but not limited to, the implied warranties of
# merchantability and fitness for a particular purpose are disclaimed.
# In no event shall the Cesnet z.s.p.o or contributors be liable for
# any direct, indirect, incidental, special, exemplary, or consequential
# damages (including, but not limited to, procurement of substitute
# goods or services; loss of use, data, or profits; or business
# interruption) however caused and on any theory of liability, whether
# in contract, strict liability, or tort (including negligence or
# otherwise) arising in any way out of the use of this software, even
# if advised of the possibility of such damage.
package WardenClientSend;
use strict;
use SOAP::Lite;
use IO::Socket::SSL qw(debug1);
use SOAP::Transport::TCP;
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#-------------------------------------------------------------------------------
# errMsg - print error message and die
#-------------------------------------------------------------------------------
sub errMsg
{
my $msg = shift;
die($msg . "\n");
} # End of errMsg
#-------------------------------------------------------------------------------
# c2s - connect to server, send request and receive response
#-------------------------------------------------------------------------------
sub c2s
{
my $uri = shift;
my $ssl_key_file = shift;
my $ssl_cert_file = shift;
my $ssl_ca_file = shift;
my $method = shift;
my $data = shift;
my $client;
my ($server, $port, $service) = $uri =~ /https:\/\/(.+)\:(\d+)\/(.+)/;
if (!($client = SOAP::Transport::TCP::Client->new(
PeerAddr => $server,
PeerPort => $port,
Proto => 'tcp',
SSL_use_cert => 1,
SSL_verify_mode => 0x02,
SSL_key_file => $ssl_key_file,
SSL_cert_file => $ssl_cert_file,
SSL_ca_file => $ssl_ca_file,
))) {errMsg("Sorry, unable to create socket: " . &SOAP::Transport::TCP::Client::errstr)}
# setting of URI and serialize SOAP envelope and data object
my $soap = SOAP::Lite->uri($uri);
my $envelope = $soap->serializer->envelope(method => $method, $data);
# setting of TCP URI and send serialized SOAP envelope and data
my $tcp_uri = "tcp://$server:$port/$service";
my $result = $client->send_receive(envelope => $envelope, endpoint => $tcp_uri);
# check server response
if (!defined $result) {
errMsg("Error: server returned empty response." . "\n" . "Problem with used SSL ceritificates or Warden server at $server:$port is down.");
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} else {
# deserialized response from server -> create SOAP envelope and data object
my $response = $soap->deserializer->deserialize($result);
# check SOAP fault status
$response->fault ? errMsg("Server sent error message:: " . $response->faultstring) : return 1;
}
}
#-------------------------------------------------------------------------------
# saveNewEvent - send new event from detection scripts to warden server
#-------------------------------------------------------------------------------
sub saveNewEvent
{
my $warden_path = shift;
my $event_ref = shift;
my $etcdir = $warden_path . "/etc/";
my $libdir = $warden_path . "/lib/";
# read the config file
require $libdir . "WardenClientConf.pm";
my $conf_file = $etcdir . "warden-client.conf";
my ($uri, $ssl_key_file, $ssl_cert_file, $ssl_ca_file) = WardenClientConf::loadConf($conf_file);
# prepare variables of event
my @event = @{$event_ref};
my $service = $event[0];
my $detected = $event[1];
my $type = $event[2];
my $source_type = $event[3];
my $source = $event[4];
my $target_proto = $event[5];
my $target_port = $event[6];
my $attack_scale = $event[7];
my $note = $event[8];
my $priority = $event[9];
my $timeout = $event[10];
# create SOAP data object
my $event = SOAP::Data->name(event => \SOAP::Data->value(
SOAP::Data->name(SERVICE => $service),
SOAP::Data->name(DETECTED => $detected),
SOAP::Data->name(TYPE => $type),
SOAP::Data->name(SOURCE_TYPE => $source_type),
SOAP::Data->name(SOURCE => $source),
SOAP::Data->name(TARGET_PROTO => $target_proto),
SOAP::Data->name(TARGET_PORT => $target_port),
SOAP::Data->name(ATTACK_SCALE => $attack_scale),
SOAP::Data->name(NOTE => $note),
SOAP::Data->name(PRIORITY => $priority),
SOAP::Data->name(TIMEOUT => $timeout)
));
my $result = c2s($uri, $ssl_key_file, $ssl_cert_file, $ssl_ca_file, "saveNewEvent", $event);
$result ? return 1 : return 0;
} # End of saveNewEvent
1;