| 1 |
root |
1.1 |
#!/usr/bin/perl |
| 2 |
|
|
|
| 3 |
|
|
use Event; |
| 4 |
|
|
use Time::HiRes qw(time); |
| 5 |
|
|
use Curses; |
| 6 |
|
|
use Socket; |
| 7 |
|
|
|
| 8 |
|
|
$DEV = "eth1"; |
| 9 |
|
|
$RAWDEV = "wifi0"; |
| 10 |
|
|
$PROC = "/proc/driver/aironet/$DEV"; |
| 11 |
|
|
|
| 12 |
|
|
$SIG{INT} = |
| 13 |
|
|
$SIG{TERM} = |
| 14 |
|
|
$SIG{HUP} = sub { exit }; |
| 15 |
|
|
|
| 16 |
|
|
sub config { |
| 17 |
|
|
open my $config, ">$PROC/Config" |
| 18 |
|
|
or die "$PROC/Config: $!"; |
| 19 |
|
|
print $config $_[0]; |
| 20 |
|
|
} |
| 21 |
|
|
|
| 22 |
|
|
config "Mode: yna\n"; |
| 23 |
|
|
system "ifconfig", $DEV, "up"; |
| 24 |
|
|
system "ifconfig", $RAWDEV, "up"; |
| 25 |
|
|
|
| 26 |
|
|
my $initscr; |
| 27 |
|
|
sub init_screen { |
| 28 |
|
|
initscr; |
| 29 |
|
|
$initscr = 1; |
| 30 |
|
|
start_color; |
| 31 |
|
|
cbreak; noecho; |
| 32 |
|
|
immedok 0; nonl; raw; intrflush 0; keypad 1; |
| 33 |
|
|
idlok 1; scrollok 0; leaveok 0; |
| 34 |
|
|
} |
| 35 |
|
|
|
| 36 |
|
|
sub end_win { |
| 37 |
|
|
endwin if $initscr--; |
| 38 |
|
|
} |
| 39 |
|
|
|
| 40 |
|
|
init_screen; |
| 41 |
|
|
|
| 42 |
|
|
my $refresh = Event->idle(nice => -5, parked => 1, min => 0.01, max => 1, repeat => 0, cb => sub { |
| 43 |
|
|
@menu = (); |
| 44 |
|
|
&$curmenu; |
| 45 |
|
|
|
| 46 |
|
|
$menu_idx += @menu if $menu_idx < 0; |
| 47 |
|
|
$menu_idx -= @menu if $menu_idx >= @menu; |
| 48 |
|
|
|
| 49 |
|
|
erase; |
| 50 |
|
|
|
| 51 |
|
|
move 0, 0; |
| 52 |
|
|
addstr $frame++; |
| 53 |
|
|
|
| 54 |
|
|
for my $idx (0 .. $#menu) { |
| 55 |
|
|
move 1 + $idx, 0; |
| 56 |
|
|
standout if $idx == $menu_idx; |
| 57 |
|
|
addstr $menu[$idx][0]; |
| 58 |
|
|
standend if $idx == $menu_idx; |
| 59 |
|
|
} |
| 60 |
|
|
|
| 61 |
|
|
move 2 + scalar@menu, 0; |
| 62 |
|
|
eval { |
| 63 |
|
|
$menu[$menu_idx][1]->(); |
| 64 |
|
|
}; |
| 65 |
|
|
|
| 66 |
|
|
refresh; |
| 67 |
|
|
}); |
| 68 |
|
|
|
| 69 |
|
|
Event->io(fd => \*STDIN, poll => 'r', cb => sub { |
| 70 |
|
|
my $ch = getch; |
| 71 |
|
|
if ($ch eq "\x1b" or $ch eq "q") { |
| 72 |
|
|
Event::unloop; |
| 73 |
|
|
} elsif ($ch eq KEY_DOWN or $ch eq "j") { |
| 74 |
|
|
$menu_idx++; |
| 75 |
|
|
} elsif ($ch eq KEY_UP or $ch eq "k") { |
| 76 |
|
|
$menu_idx--; |
| 77 |
|
|
} else { |
| 78 |
|
|
eval { |
| 79 |
|
|
$menu[$menu_idx][2]->($ch); |
| 80 |
|
|
}; |
| 81 |
|
|
} |
| 82 |
|
|
$refresh->start; |
| 83 |
|
|
}); |
| 84 |
|
|
|
| 85 |
|
|
END { |
| 86 |
|
|
end_win; |
| 87 |
|
|
config "Mode: adhoc\n"; |
| 88 |
|
|
} |
| 89 |
|
|
|
| 90 |
|
|
sub decode_tags { |
| 91 |
|
|
my $pkt = shift; |
| 92 |
|
|
my %tag; |
| 93 |
|
|
|
| 94 |
|
|
while ($pkt) { |
| 95 |
|
|
my ($id, $len) = unpack "C C", $pkt; |
| 96 |
|
|
my $data = substr $pkt, 2, $len; |
| 97 |
|
|
$pkt = substr $pkt, 2 + $len; |
| 98 |
|
|
|
| 99 |
|
|
$id = ({ |
| 100 |
|
|
0 => SSID, |
| 101 |
|
|
1 => rates, |
| 102 |
|
|
2 => FH, |
| 103 |
|
|
3 => DS, |
| 104 |
|
|
4 => CF, |
| 105 |
|
|
5 => TIM, |
| 106 |
|
|
6 => IBSS, |
| 107 |
|
|
16 => challenge, |
| 108 |
|
|
})->{$id}; |
| 109 |
|
|
$tag{$id} = $data; |
| 110 |
|
|
} |
| 111 |
|
|
|
| 112 |
|
|
%tag; |
| 113 |
|
|
} |
| 114 |
|
|
|
| 115 |
|
|
sub PF_PACKET (){ 17 } |
| 116 |
|
|
sub SOCK_RAW (){ 3 } |
| 117 |
|
|
sub ETH_P_ALL (){ 0x0003 } |
| 118 |
|
|
sub SIOCGIFINDEX (){ 0x000008933 } |
| 119 |
|
|
|
| 120 |
|
|
sub open_pcap_socket { |
| 121 |
|
|
socket my $cap, PF_PACKET, SOCK_RAW, (unpack "s", pack "n", ETH_P_ALL) |
| 122 |
|
|
or die "unable to open packet socket: $!"; |
| 123 |
|
|
|
| 124 |
|
|
my $ifidx = pack "a16 I", $RAWDEV; |
| 125 |
|
|
ioctl $cap, SIOCGIFINDEX, $ifidx |
| 126 |
|
|
or die "can't get index of interface $RAWDEV: $!"; |
| 127 |
|
|
$ifidx = unpack "x16 I", $ifidx; |
| 128 |
|
|
|
| 129 |
|
|
bind $cap, pack "S! S! I S! C C a8", PF_PACKET, (unpack "s", pack "n", ETH_P_ALL), $ifidx |
| 130 |
|
|
or die "unable to bind to interface: $!"; |
| 131 |
|
|
|
| 132 |
|
|
$cap; |
| 133 |
|
|
} |
| 134 |
|
|
|
| 135 |
|
|
sub e2h($) { |
| 136 |
|
|
join ":", map unpack("H*", $_), split //, $_[0]; |
| 137 |
|
|
} |
| 138 |
|
|
|
| 139 |
|
|
sub add_menu { |
| 140 |
|
|
my ($title, $display, $select) = @_; |
| 141 |
|
|
push @menu, [$title, $display, $select]; |
| 142 |
|
|
} |
| 143 |
|
|
|
| 144 |
|
|
$curmenu = \&menu_bss_list; |
| 145 |
|
|
|
| 146 |
|
|
sub bss2string { |
| 147 |
|
|
my $bss = shift; |
| 148 |
|
|
|
| 149 |
|
|
my $s = "AGE(" . int(time - $bss->{ts}) . ") " |
| 150 |
|
|
. "IP($bss->{ip}) " |
| 151 |
|
|
. "ARP($bss->{arp}) "; |
| 152 |
|
|
while (my ($k, $v) = each %{$bss->{ap}}) { |
| 153 |
|
|
$s .= "(" . e2h($k) . " $v->{mode} '$v->{essid}') "; |
| 154 |
|
|
} |
| 155 |
|
|
$s; |
| 156 |
|
|
} |
| 157 |
|
|
|
| 158 |
|
|
sub display_bss { |
| 159 |
|
|
my $bss = shift; |
| 160 |
|
|
|
| 161 |
|
|
addstr "TS: $bss->{ts}\n"; |
| 162 |
|
|
addstr "ARP/IP packets received: $bss->{arp}/$bss->{ip}\n"; |
| 163 |
|
|
|
| 164 |
|
|
addstr "\naccess points\n"; |
| 165 |
|
|
|
| 166 |
|
|
while (my ($k, $v) = each %{$bss->{ap}}) { |
| 167 |
|
|
addstr " " . e2h($k) . "\n"; |
| 168 |
|
|
addstr " mode $v->{mode}, channel $v->{channel}, essid '$v->{essid}'\n"; |
| 169 |
|
|
addstr " beacon frames received $v->{beacon}\n"; |
| 170 |
|
|
} |
| 171 |
|
|
|
| 172 |
|
|
addstr "\nstations\n"; |
| 173 |
|
|
|
| 174 |
|
|
while (my ($k, $v) = each %{$bss->{station}}) { |
| 175 |
|
|
addstr " " . e2h($k); |
| 176 |
|
|
while (my ($k, $v) = each %$v) { |
| 177 |
|
|
addstr " " . (inet_ntoa $k) . "($v)"; |
| 178 |
|
|
} |
| 179 |
|
|
addstr "\n"; |
| 180 |
|
|
} |
| 181 |
|
|
} |
| 182 |
|
|
|
| 183 |
|
|
sub menu_bss_list { |
| 184 |
|
|
my @menu; |
| 185 |
|
|
while (my ($k, $v) = each %$db) { |
| 186 |
|
|
add_menu e2h($k) . " " . bss2string($v), |
| 187 |
|
|
sub { display_bss $v }, |
| 188 |
|
|
sub { |
| 189 |
|
|
if ($_[0] eq KEY_LEFT or $_[0] eq "h") { |
| 190 |
|
|
Event::unloop; |
| 191 |
|
|
} elsif ($_[0] eq KEY_RIGHT or $_[0] eq "l") { |
| 192 |
|
|
#$curmenu = sub { display_bss $k }; |
| 193 |
|
|
} |
| 194 |
|
|
} for 1..3; |
| 195 |
|
|
} |
| 196 |
|
|
} |
| 197 |
|
|
|
| 198 |
|
|
sub activity { |
| 199 |
|
|
$db->{$_[0]}->{ts} = time; |
| 200 |
|
|
#print "activity ", e2h $_[0]; print "\n"; |
| 201 |
|
|
$refresh->start; |
| 202 |
|
|
} |
| 203 |
|
|
|
| 204 |
|
|
sub reg_ip { |
| 205 |
|
|
my ($bssid, $ip, $ether) = @_; |
| 206 |
|
|
$db->{$bssid}{station}{$ether}{$ip}++; |
| 207 |
|
|
activity $bssid; |
| 208 |
|
|
} |
| 209 |
|
|
|
| 210 |
|
|
{ |
| 211 |
|
|
my $cap = open_pcap_socket; |
| 212 |
|
|
my $pkt; |
| 213 |
|
|
|
| 214 |
|
|
Event->io(fd => $cap, poll => 'r', cb => sub { |
| 215 |
|
|
sysread $$cap, $pkt, 120; |
| 216 |
|
|
|
| 217 |
|
|
my ($fc1, $fc2, $sid, $a1, $a2, $a3, $sc, $pkt) |
| 218 |
|
|
= unpack "C C n a6 a6 a6 S a*", $pkt; |
| 219 |
|
|
|
| 220 |
|
|
$pkt = substr $pkt, 6 if $fc2 & 0x03 == 0x03; # skip A4 |
| 221 |
|
|
|
| 222 |
|
|
if ($fc1 == 0x80 or $fc1 == 0x50) { |
| 223 |
|
|
my ($ts1, $ts2, $bi, $cf, $pkt) |
| 224 |
|
|
= unpack "L L S S a*", $pkt; |
| 225 |
|
|
|
| 226 |
|
|
my %tag = decode_tags $pkt; |
| 227 |
|
|
|
| 228 |
|
|
my $ap = $db->{$a3}{ap}{$a2} ||= {}; |
| 229 |
|
|
$ap->{mode} = ($cf & 3) == 1 ? "AP" : "adhoc"; |
| 230 |
|
|
$ap->{essid} = $tag{SSID}; |
| 231 |
|
|
$ap->{channel} = ord $tag{DS}; |
| 232 |
|
|
$ap->{beacon}++; |
| 233 |
|
|
|
| 234 |
|
|
activity $a3; |
| 235 |
|
|
} elsif ($fc1 == 0x08) { |
| 236 |
|
|
my $bssid = ($a3, $a2, $a1)[$fc2 & 3]; |
| 237 |
|
|
|
| 238 |
|
|
my ($llc, $et, $pkt) = unpack "a6 n a*", $pkt; |
| 239 |
|
|
if ($llc eq "\xaa\xaa\x03\x00\x00\x00") { # SNAP/UI/ENCAP_ETHER |
| 240 |
|
|
if ($et == 0x0800) { |
| 241 |
|
|
my ($vhl, $tos, $len, $id, $off, $ttl, $prot, $sum, $src, $dst, $pkt) |
| 242 |
|
|
= unpack "C C n n n C C n a4 a4 a*", $pkt; |
| 243 |
|
|
if ($vhl & 0x40 == 0x40) { |
| 244 |
|
|
$db->{$bssid}{ip}++; |
| 245 |
|
|
reg_ip $bssid, $src, $a2; |
| 246 |
|
|
reg_ip $bssid, $dst, $a1; |
| 247 |
|
|
0 && |
| 248 |
|
|
printf "IP: %02x %02x %04x %04x: %s %s> %s %s %02x \n", |
| 249 |
|
|
$fc1, $fc2, $sid, $sc, |
| 250 |
|
|
(unpack "H*", $a2), (inet_ntoa $src), |
| 251 |
|
|
(unpack "H*", $a1), (inet_ntoa $dst), |
| 252 |
|
|
$prot; |
| 253 |
|
|
} |
| 254 |
|
|
} elsif ($et == 0x0806) { |
| 255 |
|
|
my ($hrd, $pro, $hln, $pln, $op, $src_hw, $src, $dst_hw, $dst) |
| 256 |
|
|
= unpack "n n C C n a6 a4 a6 a4", $pkt; |
| 257 |
|
|
if ($hrd == 1 and $hln == 6 and $pln == 4) { |
| 258 |
|
|
reg_ip $bssid, $src, $src_hw; |
| 259 |
|
|
reg_ip $bssid, $dst, $dst_hw if $op != 1; |
| 260 |
|
|
$db->{$bssid}{arp}++; |
| 261 |
|
|
0 && |
| 262 |
|
|
printf "ARP: %04x> %s %s : %s %s\n", |
| 263 |
|
|
$op, |
| 264 |
|
|
(unpack "H*", $src_hw), (inet_ntoa $src), |
| 265 |
|
|
(unpack "H*", $dst_hw), (inet_ntoa $dst); |
| 266 |
|
|
} |
| 267 |
|
|
} |
| 268 |
|
|
} else { |
| 269 |
|
|
0 && |
| 270 |
|
|
printf "?? %02x %02x %04x %04x: %s.%s \n", $fc1, $fc2, $sid, $sc, (unpack "H*", $llc), unpack "H*", $pkt; |
| 271 |
|
|
} |
| 272 |
|
|
} elsif ($fc1 != 0x40 and $fc1 != 0x10 and $fc1 != 0x00 and $fc1 != 0xb0) { |
| 273 |
|
|
0 && |
| 274 |
|
|
printf "%02x %02x %04x %04x: %s \n", $fc1, $fc2, $sid, $sc, unpack "H*", $pkt; |
| 275 |
|
|
} |
| 276 |
|
|
}); |
| 277 |
|
|
} |
| 278 |
|
|
|
| 279 |
|
|
Event::loop; |
| 280 |
|
|
|
| 281 |
|
|
|
