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
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
package network::drakfirewall; # $Id$
use diagnostics;
use strict;
use network::shorewall;
use common;
my @all_servers =
(
{
name => N("Web Server"),
pkg => 'apache apache-mod_perl boa',
ports => '80/tcp 443/tcp',
},
{
name => N("Domain Name Server"),
pkg => 'bind',
ports => '53/tcp 53/udp',
},
{
name => "SSH",
pkg => 'openssh-server',
ports => '22/tcp',
},
{
name => "FTP",
pkg => 'ftp-server-krb5 wu-ftpd proftpd pure-ftpd',
ports => '20/tcp 21/tcp',
},
{
name => N("Mail Server"),
pkg => 'sendmail postfix qmail',
ports => '25/tcp',
},
{
name => N("POP and IMAP Server"),
pkg => 'imap courier-imap-pop',
ports => '109/tcp 110/tcp 143/tcp',
},
{
name => "Telnet",
pkg => 'telnet-server-krb5',
ports => '23/tcp',
hide => 1,
},
{
name => "CUPS",
pkg => 'cups',
ports => '631/tcp 631/udp',
hide => 1,
},
);
sub port2server {
my ($port) = @_;
find {
any { $port eq $_ } split(' ', $_->{ports});
} @all_servers;
}
sub check_ports_syntax {
my ($ports) = @_;
foreach (split ' ', $ports) {
my ($nb) = m!^(\d+)/(tcp|udp)$! or return $_;
1 <= $nb && $nb <= 65535 or return $_;
}
'';
}
sub to_ports {
my ($servers, $unlisted) = @_;
my $ports = join(' ', (map { $_->{ports} } @$servers), if_($unlisted, $unlisted));
\$ports;
}
sub from_ports {
my ($ports) = @_;
my @l;
my @unlisted;
foreach (split ' ', $$ports) {
if (my $s = port2server($_)) {
push @l, $s;
} else {
push @unlisted, $_;
}
}
[ uniq(@l) ], join(' ', @unlisted);
}
sub default_from_pkgs {
my ($in) = @_;
my @pkgs = $in->do_pkgs->are_installed(map { split ' ', $_->{pkg} } @all_servers);
[ grep {
my $s = $_;
any { member($_, @pkgs) } (split ' ', $s->{pkg});
} @all_servers ];
}
sub get_ports {
my ($_ports) = @_;
my $shorewall = network::shorewall::read() or return;
\$shorewall->{ports};
}
sub set_ports {
my ($in, $disabled, $ports) = @_;
my $shorewall = network::shorewall::read() || network::shorewall::default_interfaces() or die N("No network card");
if (!$disabled || -x "$::prefix/sbin/shorewall") {
$in->do_pkgs->ensure_is_installed('shorewall', '/sbin/shorewall', $::isInstall) or return;
$shorewall->{disabled} = $disabled;
$shorewall->{ports} = $$ports;
network::shorewall::write($shorewall);
}
}
sub get_conf {
my ($in, $disabled, $ports) = @_;
my $possible_servers = default_from_pkgs($in);
$_->{hide} = 0 foreach @$possible_servers;
if ($ports) {
$disabled, from_ports($ports);
} elsif (my $shorewall = network::shorewall::read()) {
$shorewall->{disabled}, from_ports(\$shorewall->{ports});
} else {
$in->ask_okcancel('', N("drakfirewall configurator
This configures a personal firewall for this Mandrake Linux machine.
For a powerful and dedicated firewall solution, please look to the
specialized MandrakeSecurity Firewall distribution."), 1) or return;
$in->ask_okcancel('', N("drakfirewall configurator
Make sure you have configured your Network/Internet access with
drakconnect before going any further."), 1) or return;
$disabled, $possible_servers, '';
}
}
sub choose {
my ($in, $disabled, $servers, $unlisted) = @_;
$_->{on} = 0 foreach @all_servers;
$_->{on} = 1 foreach @$servers;
my @l = grep { $_->{on} || !$_->{hide} } @all_servers;
$in->ask_from_({
messages => N("Which services would you like to allow the Internet to connect to?"),
advanced_messages => N("You can enter miscellaneous ports.
Valid examples are: 139/tcp 139/udp.
Have a look at /etc/services for information."),
callbacks => {
complete => sub {
if (my $invalid_port = check_ports_syntax($unlisted)) {
$in->ask_warn('', N("Invalid port given: %s.
The proper format is \"port/tcp\" or \"port/udp\",
where port is between 1 and 65535.", $invalid_port));
return 1;
}
},
} },
[
{ text => N("Everything (no firewall)"), val => \$disabled, type => 'bool' },
(map { { text => $_->{name}, val => \$_->{on}, type => 'bool', disabled => sub { $disabled } } } @l),
{ label => N("Other ports"), val => \$unlisted, advanced => 1, disabled => sub { $disabled } }
]) or return;
$disabled, to_ports([ grep { $_->{on} } @l ], $unlisted);
}
sub main {
my ($in, $disabled) = @_;
($disabled, my $servers, my $unlisted) = get_conf($in, $disabled) or return;
($disabled, my $ports) = choose($in, $disabled, $servers, $unlisted) or return;
set_ports($in, $disabled, $ports);
}
|
