1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
#! @PATHTOPERL@ -w
# vim:syntax=perl
use strict;
use lib '@LR_PERL5LIBDIR@';
use Lire::DlfSchema;
use Lire::Program qw( :msg :dlf );
use Lire::WELF;
init_dlf_converter( "proxy" );
my $schema = Lire::DlfSchema::load_schema( "proxy" );
my $dlf_maker =
$schema->make_hashref2asciidlf_func( qw/time client_ip client_host
user duration cache_result req_result protocol
dst_ip dst_host dst_port operation requested_url bytes rule
useragent cat_site cat_page catlevel_site catlevel_page /);
my $lines = 0;
my $dlflines = 0;
my $errorlines = 0;
my $parser = new Lire::WELF;
while (<>) {
chomp;
$lines++;
eval {
my $welf = $parser->parse( $_ );
die "not a firewall WELF record: id=", $welf->{id}, "\n"
unless $welf->{id} eq 'firewall';
# Skip messages without proto, src, dst
return unless defined $welf->{proto} &&
defined $welf->{src} && $welf->{dst};
my %dlf = ( time => $welf->{time},
rule => $welf->{rule},
user => $welf->{user},
duration => $welf->{duration},
client_ip => $welf->{src},
client_host => $welf->{srcname} || $welf->{src},
dst_ip => $welf->{dst},
dst_host => $welf->{dstname} || $welf->{dst},
dst_port => $welf->{dst_port},
protocol => $welf->{proto},
operation => $welf->{op},
requested_url => $welf->{arg},
req_result => $welf->{result},
cache_result => $welf->{cache},
useragent => $welf->{agent},
# Category
cat_action => $welf->{cat_action},
cat_site => $welf->{cat_site},
catlevel_site => $welf->{catlevel_site},
cat_page => $welf->{cat_page},
catlevel_page => $welf->{catlevel_page},
);
# Bytes should be computed from rcvd and sent
if ( $welf->{rcvd} || $welf->{sent}) {
$dlf{bytes} = 0;
$dlf{bytes} += $welf->{rcvd} if $welf->{rcvd};
$dlf{bytes} += $welf->{sent} if $welf->{sent};
}
my $dlf = $dlf_maker->( \%dlf );
print join( " ", @$dlf), "\n";
$dlflines++;
};
if ($@) {
lr_warn( $@ );
lr_notice( qq{cannot convert line $. "$_" to proxy dlf, skipping} );
$errorlines++;
}
}
end_dlf_converter( $lines, $dlflines, $errorlines );
__END__
=pod
=head1 NAME
welf_proxy2dlf - convert logs in WebTrends Enhanced Log Format to proxy DLF
=head1 SYNOPSIS
B<welf_proxy2dlf> I<file>
=head1 DESCRIPTION
B<welf_proxy2dlf> converts firewall logs in the WebTrends Enhanced Log
Format into the proxy DLF.
That format is defined at the following URL:
http://www.webtrends.com/partners/welfOverview.htm
This converter also supports the SonicWall extensions.
A list of firewall products that supports that format can be found
at the following URL:
http://www.webtrends.com/partners/firewall.htm
=head1 IMPLEMENTATION NOTES
Welf log files contains information about many applications: proxies,
packet filters, IDS. IDS and packet filters information is handled by
the firewall superservice, whereas the proxy information is handled by
the proxy supersevice.
This converter will only convert records with a proto, src and dst
field. All other records are ignored (they won't be ignored by the
firewall superservice).
=head1 SEE ALSO
Lire::WELF(3) welf2dlf(1)
=head1 AUTHORS
Francis J. Lacoste <flacoste@logreport.org>
=head1 VERSION
$Id: welf_proxy2dlf.in,v 1.1 2002/02/05 21:57:22 flacoste Exp $
=head1 COPYRIGHT
Copyright (C) 2001 Stichting LogReport Foundation LogReport@LogReport.org
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, or
(at your option) any later version.
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 (see COPYING); if not, check with
http://www.gnu.org/copyleft/gpl.html or write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
=cut
# Local Variables:
# mode: cperl
# End:
|
