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|
#!/usr/bin/perl
use strict;
use lib qw(/usr/lib/libDrakX);
use c;
use common;
use standalone;
use Digest::MD5;
use network::netconnect;
use network::tools;
use mygtk2 qw(gtknew);
use network::activefw;
use Gtk2::TrayIcon;
use ugtk2 qw(:create :helpers :wrappers);
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 %appletstate = (
connected => {
colour => [ 'connected' ],
changes => [ 'disconnected', 'error', 'busy' ],
menu => [ 'downNetwork', 'confNetwork', 'monitorNetwork', 'refresh', 'help' ],
tt => [ N_("Network is up on interface %s") ]
},
disconnected => {
colour => [ 'disconnected' ],
changes => [ 'connected', 'error', 'busy' ],
menu => [ 'upNetwork', 'confNetwork', 'refresh', 'help' ],
tt => [
#-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 => {
colour => [ 'disconnected' ],
changes => [ 'connected' ],
menu => [ 'confNetwork', 'refresh', 'help' ],
tt => [
N_("You do not have any configured Internet connection.
Run the \"Add Connection\" assistant from the Mandrakelinux Control Center")
]
}
);
my %actions = (
'upNetwork' => { name => sub { N("Connect %s", $_[0]) }, launch => \&network::tools::start_interface },
'downNetwork' => { name => sub { N("Disconnect %s", $_[0]) }, launch => \&network::tools::stop_interface },
'monitorNetwork' => { name => N("Monitor Network"), launch => sub { system("/usr/sbin/net_monitor --defaultintf $_[0] &") } },
'confNetwork' => { name => N("Configure Network"), launch => sub { system("/usr/sbin/drakconnect --skip-wizard &") } },
'refresh' => { name => N("Refresh"), launch => sub { checkNetwork() } },
'help' => { name => N("Get Online Help"), launch => sub { system("drakhelp --id internet-connection &") } }
);
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, $_[1]->time);
});
my ($opt) = @ARGV;
if ($opt eq '--force' || $opt eq '-f') { setAutoStart('TRUE') }
shouldStart() or die "$onstartupfile should be set to TRUE or use net_applet --force";
my $activefw = activefw->new(sub {
my ($con, $msg) = @_;
handle_attack($msg->get_args_list) if
$msg->get_interface eq "com.mandrakesoft.activefirewall" &&
$msg->get_path eq "/com/mandrakesoft/activefirewall" &&
$msg->get_member eq "Attack";
});
my $interactive_cb;
my @attacks_queue;
checkNetwork();
cronNetwork();
$icon->show_all;
Gtk2->main;
ugtk2::exit(0);
sub is_running {
my ($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 $ENV{USER}`;
}
sub shouldStart() {
my %p = getVarsFromSh($onstartupfile);
my $ret = $p{AUTOSTART} eq 'FALSE' ? 0 : 1;
$ret;
}
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 checkNetwork() {
my $netcnx = {};
my $netc = {};
my $intf = {};
network::netconnect::read_net_conf($netcnx, $netc, $intf);
my ($gw_intf, $is_up, $gw_address, $dns_server) = network::tools::get_internet_connection($netc, $intf);
go2State($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 getIP {
my ($interface) = shift;
my $ifconfig = '/sbin/ifconfig';
my @lines = `$ifconfig $interface`;
my @ip = map { if_(/inet adr:([\d.]+)/, $1) } @lines;
return wantarray() ? @ip : $ip[0];
}
sub cronNetwork() {
$timeout = Glib::Timeout->add(5*1000, sub {
checkNetwork();
1;
});
}
sub go2State {
my ($state_type, $interface) = @_;
if ($current_state ne $state_type) {
$current_state = $state_type;
$menu and $menu->destroy;
$menu = setState($state_type, $interface);
}
}
sub setState {
my ($state_type, $interface) = @_;
my $arr = $appletstate{$state_type}{menu};
my $tmp = gtkcreate_pixbuf($appletstate{$state_type}{colour}[0]);
$img->set_from_pixbuf($tmp);
gtkset_tip(Gtk2::Tooltips->new, $eventbox, formatAlaTeX(common::sprintf_fixutf8(translate($appletstate{$state_type}{tt}[0]), $interface)));
my $menu = Gtk2::Menu->new;
foreach (@$arr) {
my $name = ref($actions{$_}{name}) eq 'CODE' ? $actions{$_}{name}->($interface) : $actions{$_}{name};
my $launch = $actions{$_}{launch};
$menu->append(gtksignal_connect(gtkshow(Gtk2::MenuItem->new_with_label($name)), activate => sub { $launch->($interface) }));
}
$menu->append(gtkshow(Gtk2::SeparatorMenuItem->new));
$menu->append($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)) })));
$menu->append(gtkshow(gtksignal_connect(gtkset_active(Gtk2::CheckMenuItem->new_with_label(N("Always launch on startup")), shouldStart()),
toggled => sub { setAutoStart(uc(bool2text($_[0]->get_active))) })));
$menu->append(gtksignal_connect(gtkshow(Gtk2::MenuItem->new_with_label(N("Quit"))), activate => sub { mainQuit() }));
$menu;
}
sub mainQuit() {
Glib::Source->remove($timeout) if $timeout;
Gtk2->main_quit;
}
sub setAutoStart {
my $state = shift;
output_p $onstartupfile,
qq(AUTOSTART=$state
);
}
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 $ip_addr = activefw::get_ip_address($addr);
my $hostname = activefw::resolve_address($ip_addr);
my $service = activefw::get_service($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", 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;
}
|
