summaryrefslogtreecommitdiffstats
path: root/perl-install/standalone/net_applet
blob: 50c5acd6985b88b969938bc2ceb775ef8678680d (plain)
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
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
#!/usr/bin/perl

use strict;
use lib qw(/usr/lib/libDrakX);
use c;
use common;
use standalone;
use Digest::MD5;
use network::network;
use network::tools;

use mygtk2 qw(gtknew);
use network::activefw;
use network::monitor;

use Gtk2::TrayIcon;

use ugtk2 qw(:create :helpers :wrappers);

my $enable_activefw;

my ($eventbox, $img);
my ($current_state, $menu, $timeout);
my $onstartupfile = "$ENV{HOME}/.net_applet";
add_icon_path("/usr/share/libDrakX/pixmaps/");
# Allow multiple instances, but only one per user:
is_running('net_applet') and die "net_applet already running\n";
my $prog_name = "/usr/bin/net_applet";
my $current_md5 = md5file($prog_name);

my $net = {};
my $watched_interface;

my $dbus = dbus_object::system_bus();
my $monitor = network::monitor->new($dbus);

my %pixbufs =
  (
      state => { map { $_ => gtkcreate_pixbuf($_) } qw(connected disconnected) },
      link_level => { map { $_ => gtkcreate_pixbuf("wifi-$_.png") } qw(20 40 60 80 100) },
      keyring => gtkcreate_pixbuf("/usr/share/pixmaps/keyring-small.png"), #- provided by usermode, required by drakxtools
  );
my %wireless_networks;
my %tooltips =
  (
      connected => N_("Network is up on interface %s"),
      disconnected =>
        #-PO: keep the "Configure Network" substring synced with the "Configure Network" message below
        N_("Network is down on interface %s. Click on \"Configure Network\""),
      notconfigured => N_("You do not have any configured Internet connection.
Run the \"%s\" assistant from the Mandriva Linux Control Center", N("Set up a new network interface (LAN, ISDN, ADSL, ...)")),
  );

my %actions = (
               'upNetwork' => { name => sub { N("Connect %s", $_[0]) }, launch => sub { network::tools::start_interface($_[0], 1) } },
               'downNetwork' => { name => sub { N("Disconnect %s", $_[0]) }, launch => sub { network::tools::stop_interface($_[0], 1) } },
               'monitorNetwork' => { name => N("Monitor Network"), launch => sub { system("/usr/sbin/net_monitor --defaultintf $_[0] &") } },
               'wireless' => { name => N("Manage wireless networks"), launch => sub { system("/usr/sbin/drakroam &") } },
               'confNetwork' => { name => N("Configure Network"), launch => sub { system("/usr/sbin/drakconnect --skip-wizard &") } },
               'chooseInterface' => {
                   name => N("Watched interface"),
                   choices => sub { N("Auto-detect"), sort keys %{$net->{ifcfg}} },
                   choice_selected => sub { $watched_interface ? $_[0] eq $watched_interface : $_[0] eq N("Auto-detect") },
                   launch => sub {
                       $watched_interface = $_[0] eq N("Auto-detect") ? undef : $_[0];
                       checkNetworkForce();
                   }
               },
               'chooseProfile' => {
                   name => N("Profiles"),
                   choices => sub { network::network::netprofile_list() },
                   choice_selected => sub { $_[0] eq $net->{PROFILE} },
                   launch => sub {
		       require run_program;
		       $net->{PROFILE} = $_[0];
		       run_program::raw({ detach => 1 }, network::tools::wrap_command_for_root('/sbin/set-netprofile', $net->{PROFILE}));
                   }
               },
               'help' => { name => N("Get Online Help"), launch => sub { system("drakhelp --id internet-connection &") } },
               'quit' => { name => N("Quit"), launch => \&mainQuit },
              );

gtkadd(my $icon = Gtk2::TrayIcon->new("Net_Applet"),
       gtkadd($eventbox = Gtk2::EventBox->new,
              gtkpack($img = Gtk2::Image->new)
             )
      );
$eventbox->signal_connect(button_press_event => sub {
			      if ($_[1]->button == 1) {
				  is_running('net_monitor') or netMonitor();
			      }
                              $_[1]->button == 3 && $menu and $menu->popup(undef, undef, undef, undef, $_[1]->button, $_[1]->time);
                          });

shouldStart() or die "$onstartupfile should be set to TRUE or use net_applet --force";

my $activefw;
my $interactive_cb;
my @attacks_queue;

if ($enable_activefw) {
    $activefw = network::activefw->new($dbus, sub {
        my ($_con, $msg) = @_;
        handle_attack($msg->get_args_list) if $msg->get_member eq "Attack";
    });
}

checkNetworkForce();
cronNetwork();
get_unprocessed_attacks() if $enable_activefw;

$icon->show_all;

$SIG{HUP} = sub {
    print "received SIGHUP, reloading network configuration\n";
    checkNetworkForce();
};

Gtk2->main;

ugtk2::exit(0);

sub is_running {
    my ($name) = @_;
    any {
	my ($ppid, $pid, $n) = /^\s*(\d+)\s+(\d+)\s+(.*)/;
	#- to run ps, perl may create some process with $name as name and 1 as ppid
	$ppid != 1 && $pid != $$ && $n eq $name;
    } `ps -o '%P %p %c' -u $ENV{USER}`;
}
sub shouldStart() {
    my ($opt) = @ARGV;
    if ($opt eq '--force' || $opt eq '-f') {
        return 1;
    }
    return getAutoStart();
}
sub md5file {
    my @md5;
    foreach my $file (@_) {
	open(my $FILE, $file) or do { print STDERR "Can not open '$file': $!"; push @md5, "" };
	binmode($FILE);
	push @md5, Digest::MD5->new->addfile($FILE)->hexdigest;
	close($FILE);
    }
    return wantarray() ? @md5 : $md5[0];
}
sub netMonitor() {
    system("/usr/sbin/net_monitor&");
    checkNetwork();
}
sub checkWireless() {
    my $networks = $monitor->list_wireless;
    foreach (keys %$networks) {
        my $net = $wireless_networks{$_} ||= {};
        put_in_hash($net, $networks->{$_});
        unless (exists $net->{menuitem}) {
            $net->{menuitem} = Gtk2::CheckMenuItem->new;
            $net->{menuitem}->add(gtkpack_(gtkshow(Gtk2::HBox->new),
                                           1, gtkset_alignment($net->{ssid_label} = Gtk2::Label->new, 0, 0),
                                           0, $net->{keyring_image} = Gtk2::Image->new_from_pixbuf($pixbufs{keyring}),
                                           0, $net->{level_image} = Gtk2::Image->new));
            undef $current_state; #- force menu redraw
        }
        $net->{ssid_label}->set_text($net->{ssid} || "[$_]");
        $net->{keyring_image}->visible(defined $net->{flags});
        my $approx_level = 20 + int($net->{signal_level}/20)*20;
        $net->{level_image}->set_from_pixbuf($pixbufs{link_level}{$approx_level});
    }
    $wireless_networks{$_}{menuitem}->visible(exists $networks->{$_}) foreach keys %wireless_networks;
}
sub checkNetwork() {
    checkWireless();
    my ($gw_intf, $_is_up, $gw_address) = $watched_interface ?
      ($watched_interface, network::tools::get_interface_status($watched_interface)) :
      network::tools::get_internet_connection($net);
    go2State($gw_address ? 'connected' : $gw_intf ? 'disconnected' : 'notconfigured', $gw_intf);

    my $new_md5 = md5file($prog_name);
    if ($new_md5 ne $current_md5) { exec($prog_name) }
}
sub checkNetworkForce() {
    $net = {};
    network::network::read_net_conf($net);
    undef $current_state;
    checkNetwork();
}
sub cronNetwork() {
    $timeout = Glib::Timeout->add(2000, sub {
                                      checkNetwork();
                                      1;
                                  });
}
sub go2State {
    my ($state_type, $interface) = @_;
    if ($current_state ne $state_type) {
        $current_state = $state_type;
        if ($menu) {
            foreach (keys %wireless_networks) {
                $wireless_networks{$_}{menuitem}->get_parent and $menu->remove($wireless_networks{$_}{menuitem});
            }
            $menu->destroy;
        }
        $menu = setState($state_type, $interface);
    }
}
sub setState {
    my ($state_type, $interface) = @_;

    $img->set_from_pixbuf($pixbufs{state}{$state_type eq 'connected' ? 'connected' : 'disconnected'});
    gtkset_tip(Gtk2::Tooltips->new, $eventbox, formatAlaTeX(common::sprintf_fixutf8(translate($tooltips{$state_type}), $interface)));

    my $menu = Gtk2::Menu->new;
    my $add_action = sub {
        my ($action) = @_;
        my $name = ref($actions{$action}{name}) eq 'CODE' ? $actions{$action}{name}->($interface) : $actions{$action}{name};
        my $launch = $actions{$action}{launch};
        if ($actions{$action}{choices}) {
            my $selected = $actions{$action}{choice_selected};
            $menu->append(gtkshow(create_menu($name, map {
                my $choice = $_;
                my $w = gtkshow(gtkset_active(Gtk2::CheckMenuItem->new_with_label($choice), $selected->($choice)));
                gtksignal_connect($w, activate => sub { $launch->($choice) });
                $w->set_draw_as_radio(1);
                $w;
            } $actions{$action}{choices}->())));
        } else {
            $menu->append(gtksignal_connect(gtkshow(Gtk2::MenuItem->new_with_label($name)), activate => sub { $launch->($interface) }));
        }
    };

    $state_type eq 'connected' and $add_action->($_) foreach qw(downNetwork monitorNetwork);
    $state_type eq 'disconnected' and $add_action->('upNetwork');
    $add_action->('confNetwork');
    $menu->append(gtkshow(Gtk2::SeparatorMenuItem->new));

    if ($state_type ne 'notconfigured') {
        if (detect_devices::has_wireless()) {
            $add_action->('wireless');
            $menu->append($_->{menuitem}) foreach values %wireless_networks;
            $menu->append(gtkshow(Gtk2::SeparatorMenuItem->new));
        }
        $add_action->('chooseInterface');
    }

    $add_action->('chooseProfile');
    if ($enable_activefw) {
        $menu->append($interactive_cb = gtkshow(gtksignal_connect(gtkset_active(Gtk2::CheckMenuItem->new_with_label(N("Interactive intrusion detection")),
                                                                                $activefw->get_interactive),
                                                                  toggled => sub { $activefw->set_interactive(to_bool($_[0]->get_active)) })));
    }
    $menu->append(gtkshow(gtksignal_connect(gtkset_active(Gtk2::CheckMenuItem->new_with_label(N("Always launch on startup")), getAutoStart()),
                                            toggled => sub { setAutoStart(uc(bool2text($_[0]->get_active))) })));
    $menu->append(gtkshow(Gtk2::SeparatorMenuItem->new));
    $add_action->('help');
    $add_action->('quit');
    $menu;
}
sub mainQuit() {
     Glib::Source->remove($timeout) if $timeout;
     Gtk2->main_quit;
}
sub getAutoStart() {
    my %p = getVarsFromSh($onstartupfile);
    return to_bool($p{AUTOSTART} ne 'FALSE');
}
sub setAutoStart {
    my $state = shift;
    output_p $onstartupfile,
    qq(AUTOSTART=$state
);
}

sub get_unprocessed_attacks() {
    my @packets = $activefw->get_reports;
    while (my @attack = splice(@packets, 0, 9)) {
        handle_attack(@attack);
    }
}

sub handle_attack {
    push @attacks_queue, [ @_ ];
    @attacks_queue == 1 and ask_attack_verdict($attacks_queue[0]);
}

sub set_attack_verdict {
    my ($seq, $verdict) = @_;
    $activefw->blacklist($seq, $verdict);
    shift @attacks_queue;
    @attacks_queue and ask_attack_verdict($attacks_queue[0]);
}

sub ask_attack_verdict {
    my ($attack) = @_;
    my ($seq, $timestamp, $indev, $prefix, $_sensor, $protocol, $addr, $port, $icmp_type) = @$attack;

    unless ($interactive_cb->get_active) {
        #- let the daemon handle the blacklist policy in automatic mode
        set_attack_verdict($seq, undef);
        return;
    }

    my $ip_addr = network::activefw::get_ip_address($addr);
    my $hostname = network::activefw::resolve_address($ip_addr);
    my $service = network::activefw::get_service($port);

    my $msg = $prefix eq "SCAN" ? N("A port scanning attack has been attempted by %s.", $hostname)
            : $prefix eq "SERV" ? N("The %s service has been attacked by %s.", $service , $hostname)
            : $prefix eq "PASS" ? N("A password cracking attack has been attempted by %s.", $hostname)
            : undef;
    unless ($msg) {
        print "unhandled attack type, skipping\n";
        return;
    }

    my $w = Gtk2::Window->new;
    $w->set_title(N("Active Firewall: intrusion detected"));
    $w->set_icon(gtknew('Pixbuf', file => "/usr/lib/libDrakX/icons/drakfirewall.png"));
    my ($yes, $no, $auto);

    gtkadd($w,
           gtknew('VBox', spacing => 5, children_loose => [
               gtknew('HBox', children => [
                   0, Gtk2::Image->new_from_stock('gtk-dialog-warning', 'dialog'),
                   0, gtknew('Label', text => "   "),
                   1, gtknew('VBox', children => [
                       0, $msg,
                       0, N("Do you want to blacklist the attacker?")
                   ])
               ]),
               gtknew('HButtonBox', layout => 'edge', children_loose => [
                   $no = gtknew('Button', text => N("No"), clicked => sub {
                       $w->destroy;
                       set_attack_verdict($seq, 0);
                   }),
                   $yes = gtknew('Button', text => N("Yes"), clicked => sub {
                       $auto->get_active and $interactive_cb->set_active(0);
                       $w->destroy;
                       set_attack_verdict($seq, 1);
                   })
               ]),
               $auto = gtknew('CheckButton', text => N("Always blacklist (do not ask again)"), toggled => sub {
                   $no->set_sensitive(!$_[0]->get_active);
               }),
               gtkadd(Gtk2::Expander->new(N("Attack details")),
                      gtknew('HBox', children => [
                          0, gtknew('Label', text => "     "),
                          1, gtknew('VBox', children_loose => [
                              N("Attack time: %s", network::activefw::format_date($timestamp)),
                              N("Network interface: %s", $indev),
                              N("Attack type: %s", $prefix),
                              if_($protocol, N("Protocol: %s", $protocol)),
                              N("Attacker IP address: %s", $ip_addr),
                              if_($hostname ne $ip_addr, N("Attacker hostname: %s", $hostname)),
                              if_($service, N("Service attacked: %s", $service)),
                              if_($port, N("Port attacked: %s", $port)),
                              if_($icmp_type, N("Type of ICMP attack: %s", $icmp_type))
                          ])
                      ])),
           ]));
    $yes->grab_focus;
    gtksignal_connect($w, delete_event => sub {
        if ($auto->get_active) {
            $interactive_cb->set_active(0);
            set_attack_verdict($seq, 1);
        } else {
            set_attack_verdict($seq, 0);
        }
    });
    $w->show_all;
}