tools/make-services.pl

   1 #!/usr/bin/perl -w
   2 # create the services file from
   3 # http://www.iana.org/assignments/enterprise-numbers
   4 #
   5 # $Id$
   6 #
   7 # Wireshark - Network traffic analyzer
   8 # By Gerald Combs <gerald@wireshark.org>
   9 # Copyright 2004 Gerald Combs
  10 #
  11 # This program is free software; you can redistribute it and/or
  12 # modify it under the terms of the GNU General Public License
  13 # as published by the Free Software Foundation; either version 2
  14 # of the License, or (at your option) any later version.
  15 #
  16 # This program is distributed in the hope that it will be useful,
  17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 # GNU General Public License for more details.
  20 #
  21 # You should have received a copy of the GNU General Public License
  22 # along with this program; if not, write to the Free Software
  23 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  24 use strict;
  25 use English;
  26
  27 my $svc_file = "services";
  28 my $in = shift;
  29 my $min_size = 2000000; # Size was 2654612 on 2011-08-31
  30 my @exclude_pats = qw(
  31         ^spr-itunes
  32         ^spl-itunes
  33         ^shilp
  34 );
  35 my $iana_port_url = "http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.txt";
  36
  37 # As of August 2011, the page linked from http://www.iana.org/protocols/
  38 # is XML. Perhaps we should parse that instead.
  39 $in = $iana_port_url unless(defined $in);
  40
  41 my $revision = '$Revision$';
  42 if ($revision !~ /[0-9]/ ) { $revision = "unknown"; }
  43
  44 my $body = "";
  45
  46 if($in =~ m/^http:/i) {
  47         eval "require LWP::UserAgent;";
  48         die "LWP isn't installed. It is part of the standard Perl module libwww." if $@;
  49
  50         my $agent    = LWP::UserAgent->new;
  51         $agent->env_proxy;
  52         $agent->agent("Wireshark make-services.pl/$revision");
  53
  54         warn "starting to fetch $in ...\n";
  55
  56         my $request  = HTTP::Request->new(GET => $in);
  57
  58
  59         if (-f $svc_file) {
  60                 my $mtime;
  61                 (undef,undef,undef,undef,undef,undef,undef,$min_size,undef,$mtime,undef,undef,undef) = stat($svc_file);
  62                 $request->if_modified_since( $mtime );
  63         }
  64
  65         my $result   = $agent->request($request);
  66
  67         if ($result->code eq 200) {
  68                 warn "done fetching $in\n";
  69                 my @in_lines = split /\n/, $result->content;
  70                 my $prefix = "";
  71                 my $exclude_match;
  72                 my $line;
  73                 my $pat;
  74                 foreach $line (@in_lines) {
  75                         $prefix = "# ";
  76                         $exclude_match = 0;
  77
  78                         if ($line =~ /^(\S+)\s+(\d+)\s+(tcp|udp|sctp|dccp)\s+(\S.*)/) {
  79                                 $line = "$1     $2/$3   # $4";
  80
  81                                 foreach $pat (@exclude_pats) {
  82                                         if ($line =~ $pat) {
  83                                                 $exclude_match = 1;
  84                                                 last;
  85                                         }
  86                                 }
  87
  88                                 if ($exclude_match) {
  89                                         $body .= "# Excluded by $PROGRAM_NAME\n";
  90                                 } else {
  91                                         $prefix = "";
  92                                 }
  93                         }
  94
  95                         $line =~ s/^\s+|\s+$//g;
  96
  97                         $body .= $prefix . $line . "\n";
  98                 }
  99         } elsif ($result->code eq 304) {
 100                 warn "$svc_file was up-to-date\n";
 101                 exit 0;
 102         } else {
 103                 die "request for $in failed with result code:" . $result->code;
 104         }
 105
 106 } else {
 107   open IN, "< $in";
 108   $body = <IN>;
 109   close IN;
 110 }
 111
 112 if (length($body) < $min_size * 0.9) {
 113         die "$in doesn't have enough data\n";
 114 }
 115
 116 open OUT, "> $svc_file";
 117
 118 print OUT <<"_HEADER";
 119 # This is a local copy of the IANA port-numbers file.
 120 #
 121 # \$Id\$
 122 #
 123 # Wireshark uses it to resolve port numbers into human readable
 124 # service names, e.g. TCP port 80 -> http.
 125 #
 126 # It is subject to copyright and being used with IANA's permission:
 127 # http://www.wireshark.org/lists/wireshark-dev/200708/msg00160.html
 128 #
 129 # The original file can be found at:
 130 # $iana_port_url
 131 #
 132 $body
 133 _HEADER
 134
 135 close OUT;