- add network::shorewall

- add tinyfirewall during install

1 files changed, 180 insertions, 0 deletions

diff --git a/perl-install/network/tinyfirewall.pm b/perl-install/network/tinyfirewall.pm
new file mode 100644
index 000000000..39df72521
--- /dev/null
+++ b/perl-install/network/tinyfirewall.pm
@@ -0,0 +1,180 @@
+package network::tinyfirewall; # $Id$
+
+use diagnostics;
+use strict;
+
+use network::shorewall;
+use common;
+
+my @all_servers = 
+(
+  { 
+   name => _("Web Server"),
+   pkg => 'apache apache-mod_perl boa',
+   ports => '80/tcp 443/tcp',
+  },
+  {
+   name => _("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 => _("Mail Server"),
+   pkg => 'sendmail postfix qmail',
+   ports => '25/tcp',
+  },
+  {
+   name => _("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) = @_;
+    foreach (@all_servers) {
+	return $_ if grep { $port eq $_ } split ' ', $_->{ports};
+    }
+    undef;
+}
+
+sub check_ports_syntax {
+    my ($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 ' ', $$ports) {
+	if (my $s = port2server($_)) {
+	    push @l, $s;
+	} else {
+	    push @unlisted, $_;
+	}
+    }
+    [ uniq(@l) ], join(' ', @unlisted);
+}
+
+sub default_from_pkgs {
+    my ($in) = @_;
+    my @pkgs = $in->do_pkgs->are_installed(map { split ' ', $_->{pkg} } @all_servers);
+    [ grep {
+	my $s = $_;
+	grep { member($_, @pkgs) } split ' ', $s->{pkg};
+    } @all_servers ];
+}
+
+sub get_ports {
+    my ($ports) = @_;
+    my $shorewall = network::shorewall::read() or return;
+    \$shorewall->{ports};
+}
+
+sub set_ports {
+    my ($disabled, $ports) = @_;
+
+    my $shorewall = network::shorewall::read() || network::shorewall::default_interfaces() or die '';
+    $shorewall->{disabled} = $disabled;
+    $shorewall->{ports} = $$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('', _("tinyfirewall configurator
+
+This configures a personal firewall for this Mandrake Linux machine.
+For a powerful dedicated firewall solution, please look to the
+specialized MandrakeSecurity Firewall distribution."), 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 => _("Which services would you like to allow the Internet to connect to?"),
+		    advanced_messages => _("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('', _("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 => _("Everything (no firewall)"), val => \$disabled, type => 'bool' },
+		   (map { { text => $_->{name}, val => \$_->{on}, type => 'bool', disabled => sub { $disabled } } } @l),
+		   { label => _("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;
+
+    $in->do_pkgs->ensure_is_installed('shorewall', '/sbin/shorewall', $::isInstall) or return;
+
+    ($disabled, my $ports) = choose($in, $disabled, $servers, $unlisted) or return;
+
+    set_ports($disabled, $ports);
+}