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# vi: ts=4 ai noet
#
# Copyright (C) 2006-2007 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import md5
from gettext import gettext as _
import gobject, gtk
IW_AUTH_ALG_OPEN_SYSTEM = 0x00000001
IW_AUTH_ALG_SHARED_KEY = 0x00000002
IW_AUTH_WPA_VERSION_DISABLED = 0x00000001
IW_AUTH_WPA_VERSION_WPA = 0x00000002
IW_AUTH_WPA_VERSION_WPA2 = 0x00000004
NM_802_11_CAP_NONE = 0x00000000
NM_802_11_CAP_PROTO_NONE = 0x00000001
NM_802_11_CAP_PROTO_WEP = 0x00000002
NM_802_11_CAP_PROTO_WPA = 0x00000004
NM_802_11_CAP_PROTO_WPA2 = 0x00000008
NM_802_11_CAP_KEY_MGMT_PSK = 0x00000040
NM_802_11_CAP_KEY_MGMT_802_1X = 0x00000080
NM_802_11_CAP_CIPHER_WEP40 = 0x00001000
NM_802_11_CAP_CIPHER_WEP104 = 0x00002000
NM_802_11_CAP_CIPHER_TKIP = 0x00004000
NM_802_11_CAP_CIPHER_CCMP = 0x00008000
NM_AUTH_TYPE_WPA_PSK_AUTO = 0x00000000
IW_AUTH_CIPHER_NONE = 0x00000001
IW_AUTH_CIPHER_WEP40 = 0x00000002
IW_AUTH_CIPHER_TKIP = 0x00000004
IW_AUTH_CIPHER_CCMP = 0x00000008
IW_AUTH_CIPHER_WEP104 = 0x00000010
IW_AUTH_KEY_MGMT_802_1X = 0x1
IW_AUTH_KEY_MGMT_PSK = 0x2
def string_is_hex(key):
is_hex = True
for c in key:
if not 'a' <= c.lower() <= 'f' and not '0' <= c <= '9':
is_hex = False
return is_hex
def string_is_ascii(string):
try:
string.encode('ascii')
return True
except:
return False
def string_to_hex(passphrase):
key = ''
for c in passphrase:
key += '%02x' % ord(c)
return key
def hash_passphrase(passphrase):
# passphrase must have a length of 64
if len(passphrase) > 64:
passphrase = passphrase[:64]
elif len(passphrase) < 64:
while len(passphrase) < 64:
passphrase += passphrase[:64 - len(passphrase)]
passphrase = md5.new(passphrase).digest()
return string_to_hex(passphrase)[:26]
class KeyDialog(gtk.Dialog):
def __init__(self, net, async_cb, async_err_cb):
gtk.Dialog.__init__(self, flags=gtk.DIALOG_MODAL)
self.set_title("Wireless Key Required")
self._net = net
self._async_cb = async_cb
self._async_err_cb = async_err_cb
self.set_has_separator(False)
label = gtk.Label("A wireless encryption key is required for\n" \
" the wireless network '%s'." % net.get_ssid())
self.vbox.pack_start(label)
self._entry = gtk.Entry()
#self._entry.props.visibility = False
self._entry.connect('changed', self._update_response_sensitivity)
self._entry.connect('activate', self._entry_activate_cb)
self.vbox.pack_start(self._entry)
self.vbox.set_spacing(6)
self.vbox.show_all()
self.add_buttons(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL,
gtk.STOCK_OK, gtk.RESPONSE_OK)
self.set_default_response(gtk.RESPONSE_OK)
self._update_response_sensitivity()
self._entry.grab_focus()
self.set_has_separator(True)
def _entry_activate_cb(self, entry):
self.response(gtk.RESPONSE_OK)
def create_security(self):
raise NotImplementedError
def get_network(self):
return self._net
def get_callbacks(self):
return (self._async_cb, self._async_err_cb)
class WEPKeyDialog(KeyDialog):
def __init__(self, net, async_cb, async_err_cb):
KeyDialog.__init__(self, net, async_cb, async_err_cb)
self.store = gtk.ListStore(str, int)
self.store.append(["Open System", IW_AUTH_ALG_OPEN_SYSTEM])
self.store.append(["Shared Key", IW_AUTH_ALG_SHARED_KEY])
self.combo = gtk.ComboBox(self.store)
cell = gtk.CellRendererText()
self.combo.pack_start(cell, True)
self.combo.add_attribute(cell, 'text', 0)
self.combo.set_active(0)
self.hbox = gtk.HBox()
self.hbox.pack_start(gtk.Label(_("Authentication Type:")))
self.hbox.pack_start(self.combo)
self.hbox.show_all()
self.vbox.pack_start(self.hbox)
def create_security(self):
key = self._entry.get_text()
if key.startswith('$:'):
key = key[2:]
elif key.startswith('s:') and ((len(key) - 2) in [5, 13]):
key = string_to_hex(key[2:])
else:
key = hash_passphrase(key)
it = self.combo.get_active_iter()
(auth_alg, ) = self.store.get(it, 1)
we_cipher = None
if len(key) == 26:
we_cipher = IW_AUTH_CIPHER_WEP104
elif len(key) == 10:
we_cipher = IW_AUTH_CIPHER_WEP40
from nminfo import Security
return Security.new_from_args(we_cipher, (key, auth_alg))
def _update_response_sensitivity(self, ignored=None):
# As the md5 passphrase can be of any length and has no indicator, we
# cannot check for the validity of the input.
self.set_response_sensitive(gtk.RESPONSE_OK, True)
class WPAKeyDialog(KeyDialog):
def __init__(self, net, async_cb, async_err_cb):
KeyDialog.__init__(self, net, async_cb, async_err_cb)
self.store = gtk.ListStore(str, int)
self.store.append(["Automatic", NM_AUTH_TYPE_WPA_PSK_AUTO])
if net.get_caps() & NM_802_11_CAP_CIPHER_CCMP:
self.store.append(["AES-CCMP", IW_AUTH_CIPHER_CCMP])
if net.get_caps() & NM_802_11_CAP_CIPHER_TKIP:
self.store.append(["TKIP", IW_AUTH_CIPHER_TKIP])
self.combo = gtk.ComboBox(self.store)
cell = gtk.CellRendererText()
self.combo.pack_start(cell, True)
self.combo.add_attribute(cell, 'text', 0)
self.combo.set_active(0)
self.hbox = gtk.HBox()
self.hbox.pack_start(gtk.Label(_("Encryption Type:")))
self.hbox.pack_start(self.combo)
self.hbox.show_all()
self.vbox.pack_start(self.hbox)
def create_security(self):
ssid = self.get_network().get_ssid()
key = self._entry.get_text()
is_hex = string_is_hex(key)
real_key = None
if len(key) == 64 and is_hex:
# Hex key
real_key = key
elif len(key) >= 8 and len(key) <= 63:
# passphrase
import commands
(s, o) = commands.getstatusoutput("/usr/sbin/wpa_passphrase '%s' '%s'" % (ssid, key))
if s != 0:
raise RuntimeError("Error hashing passphrase: %s" % o)
lines = o.split("\n")
for line in lines:
if line.strip().startswith("psk="):
real_key = line.strip()[4:]
if real_key and len(real_key) != 64:
real_key = None
if not real_key:
raise RuntimeError("Invalid key")
it = self.combo.get_active_iter()
(we_cipher, ) = self.store.get(it, 1)
wpa_ver = IW_AUTH_WPA_VERSION_WPA
caps = self.get_network().get_caps()
if caps & NM_802_11_CAP_PROTO_WPA2:
wpa_ver = IW_AUTH_WPA_VERSION_WPA2
from nminfo import Security
return Security.new_from_args(we_cipher, (real_key, wpa_ver, IW_AUTH_KEY_MGMT_PSK))
def _update_response_sensitivity(self, ignored=None):
key = self._entry.get_text()
is_hex = string_is_hex(key)
valid = False
if len(key) == 64 and is_hex:
# hex key
valid = True
elif len(key) >= 8 and len(key) <= 63:
# passphrase
valid = True
self.set_response_sensitive(gtk.RESPONSE_OK, valid)
return False
def new_key_dialog(net, async_cb, async_err_cb):
caps = net.get_caps()
if (caps & NM_802_11_CAP_CIPHER_TKIP or caps & NM_802_11_CAP_CIPHER_CCMP) and \
(caps & NM_802_11_CAP_PROTO_WPA or caps & NM_802_11_CAP_PROTO_WPA2):
return WPAKeyDialog(net, async_cb, async_err_cb)
elif (caps & NM_802_11_CAP_CIPHER_WEP40 or caps & NM_802_11_CAP_CIPHER_WEP104) and \
(caps & NM_802_11_CAP_PROTO_WEP):
return WEPKeyDialog(net, async_cb, async_err_cb)
else:
raise RuntimeError("Unhandled network capabilities %x" % caps)
class FakeNet(object):
def get_ssid(self):
return "olpcwpa"
def get_caps(self):
# return NM_802_11_CAP_CIPHER_WEP104 | NM_802_11_CAP_PROTO_WEP
return NM_802_11_CAP_CIPHER_CCMP | NM_802_11_CAP_CIPHER_TKIP | NM_802_11_CAP_PROTO_WPA
def response_cb(widget, response_id):
if response_id == gtk.RESPONSE_OK:
print dialog.get_options()
else:
print "canceled"
widget.hide()
widget.destroy()
if __name__ == "__main__":
net = FakeNet()
dialog = new_key_dialog(net, None, None)
dialog.connect("response", response_cb)
dialog.run()
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