lib/python/Plugins/SystemPlugins/WirelessLan/plugin.py

   1 from enigma import eTimer, eTPM, eEnv
   2 from Screens.Screen import Screen
   3 from Components.ActionMap import ActionMap, NumberActionMap
   4 from Components.Pixmap import Pixmap,MultiPixmap
   5 from Components.Label import Label
   6 from Components.Sources.StaticText import StaticText
   7 from Components.Sources.List import List
   8 from Components.MenuList import MenuList
   9 from Components.config import config, getConfigListEntry, ConfigYesNo, NoSave, ConfigSubsection, ConfigText, ConfigSelection, ConfigPassword
  10 from Components.ConfigList import ConfigListScreen
  11 from Components.Network import iNetwork
  12 from Components.Console import Console
  13 from Plugins.Plugin import PluginDescriptor
  14 from os import system, path as os_path, listdir
  15 from Tools.Directories import resolveFilename, SCOPE_PLUGINS, SCOPE_SKIN_IMAGE
  16 from Tools.LoadPixmap import LoadPixmap
  17 from Tools.HardwareInfo import HardwareInfo
  18 from Wlan import Wlan, wpaSupplicant, iStatus
  19 import sha
  20 from time import time
  21 from os import urandom
  22
  23 plugin_path = eEnv.resolve("${libdir}/enigma2/python/Plugins/SystemPlugins/WirelessLan")
  24
  25 list = []
  26 list.append("WEP")
  27 list.append("WPA")
  28 list.append("WPA2")
  29 list.append("WPA/WPA2")
  30
  31 weplist = []
  32 weplist.append("ASCII")
  33 weplist.append("HEX")
  34
  35 config.plugins.wlan = ConfigSubsection()
  36 config.plugins.wlan.essid = NoSave(ConfigText(default = "home", fixed_size = False))
  37 config.plugins.wlan.hiddenessid = NoSave(ConfigText(default = "home", fixed_size = False))
  38
  39 config.plugins.wlan.encryption = ConfigSubsection()
  40 config.plugins.wlan.encryption.enabled = NoSave(ConfigYesNo(default = False))
  41 config.plugins.wlan.encryption.type = NoSave(ConfigSelection(list, default = "WPA/WPA2" ))
  42 config.plugins.wlan.encryption.wepkeytype = NoSave(ConfigSelection(weplist, default = "ASCII"))
  43 config.plugins.wlan.encryption.psk = NoSave(ConfigPassword(default = "mysecurewlan", fixed_size = False))
  44
  45
  46 class WlanStatus(Screen):
  47         skin = """
  48                 <screen name="WlanStatus" position="center,center" size="560,400" title="Wireless Network State" >
  49                         <ePixmap pixmap="skin_default/buttons/red.png" position="0,0" size="140,40" alphatest="on" />
  50                         <widget source="key_red" render="Label" position="0,0" zPosition="1" size="140,40" font="Regular;20" halign="center" valign="center" backgroundColor="#9f1313" transparent="1" />
  51
  52                         <widget source="LabelBSSID" render="Label" position="10,60" size="250,25" valign="left" font="Regular;20" transparent="1" foregroundColor="#FFFFFF" />
  53                         <widget source="LabelESSID" render="Label" position="10,100" size="250,25" valign="center" font="Regular;20" transparent="1" foregroundColor="#FFFFFF" />
  54                         <widget source="LabelQuality" render="Label" position="10,140" size="250,25" valign="center" font="Regular;20" transparent="1" foregroundColor="#FFFFFF" />
  55                         <widget source="LabelSignal" render="Label" position="10,180" size="250,25" valign="center" font="Regular;20" transparent="1" foregroundColor="#FFFFFF" />
  56                         <widget source="LabelBitrate" render="Label" position="10,220" size="250,25" valign="center" font="Regular;20" transparent="1" foregroundColor="#FFFFFF" />
  57                         <widget source="LabelEnc" render="Label" position="10,260" size="250,25" valign="center" font="Regular;20" transparent="1" foregroundColor="#FFFFFF" />
  58
  59                         <widget source="BSSID" render="Label" position="320,60" size="180,25" valign="center" font="Regular;20" transparent="1" foregroundColor="#FFFFFF" />
  60                         <widget source="ESSID" render="Label" position="320,100" size="180,25" valign="center" font="Regular;20" transparent="1" foregroundColor="#FFFFFF" />
  61                         <widget source="quality" render="Label" position="320,140" size="180,25" valign="center" font="Regular;20" transparent="1" foregroundColor="#FFFFFF" />
  62                         <widget source="signal" render="Label" position="320,180" size="180,25" valign="center" font="Regular;20" transparent="1" foregroundColor="#FFFFFF" />
  63                         <widget source="bitrate" render="Label" position="320,220" size="180,25" valign="center" font="Regular;20" transparent="1" foregroundColor="#FFFFFF" />
  64                         <widget source="enc" render="Label" position="320,260" size="180,25" valign="center" font="Regular;20" transparent="1" foregroundColor="#FFFFFF" />
  65
  66                         <ePixmap pixmap="skin_default/div-h.png" position="0,350" zPosition="1" size="560,2" />
  67                         <widget source="IFtext" render="Label" position="10,355" size="120,21" zPosition="10" font="Regular;20" halign="left" backgroundColor="#25062748" transparent="1" />
  68                         <widget source="IF" render="Label" position="120,355" size="400,21" zPosition="10" font="Regular;20" halign="left" backgroundColor="#25062748" transparent="1" />
  69                         <widget source="Statustext" render="Label" position="10,375" size="115,21" zPosition="10" font="Regular;20" halign="left" backgroundColor="#25062748" transparent="1"/>
  70                         <widget name="statuspic" pixmaps="skin_default/buttons/button_green.png,skin_default/buttons/button_green_off.png" position="130,380" zPosition="10" size="15,16" transparent="1" alphatest="on"/>
  71                 </screen>"""
  72
  73         def __init__(self, session, iface):
  74                 Screen.__init__(self, session)
  75                 self.session = session
  76                 self.iface = iface
  77
  78                 self["LabelBSSID"] = StaticText(_('Accesspoint:'))
  79                 self["LabelESSID"] = StaticText(_('SSID:'))
  80                 self["LabelQuality"] = StaticText(_('Link Quality:'))
  81                 self["LabelSignal"] = StaticText(_('Signal Strength:'))
  82                 self["LabelBitrate"] = StaticText(_('Bitrate:'))
  83                 self["LabelEnc"] = StaticText(_('Encryption:'))
  84
  85                 self["BSSID"] = StaticText()
  86                 self["ESSID"] = StaticText()
  87                 self["quality"] = StaticText()
  88                 self["signal"] = StaticText()
  89                 self["bitrate"] = StaticText()
  90                 self["enc"] = StaticText()
  91
  92                 self["IFtext"] = StaticText()
  93                 self["IF"] = StaticText()
  94                 self["Statustext"] = StaticText()
  95                 self["statuspic"] = MultiPixmap()
  96                 self["statuspic"].hide()
  97                 self["key_red"] = StaticText(_("Close"))
  98
  99                 self.resetList()
 100                 self.updateStatusbar()
 101
 102                 self["actions"] = NumberActionMap(["WizardActions", "InputActions", "EPGSelectActions", "ShortcutActions"],
 103                 {
 104                         "ok": self.exit,
 105                         "back": self.exit,
 106                         "red": self.exit,
 107                 }, -1)
 108                 self.timer = eTimer()
 109                 self.timer.timeout.get().append(self.resetList)
 110                 self.onShown.append(lambda: self.timer.start(5000))
 111                 self.onLayoutFinish.append(self.layoutFinished)
 112                 self.onClose.append(self.cleanup)
 113
 114         def cleanup(self):
 115                 iStatus.stopWlanConsole()
 116
 117         def layoutFinished(self):
 118                 self.setTitle(_("Wireless Network State"))
 119
 120         def resetList(self):
 121                 iStatus.getDataForInterface(self.iface,self.getInfoCB)
 122
 123         def getInfoCB(self,data,status):
 124                 if data is not None:
 125                         if data is True:
 126                                 if status is not None:
 127                                         self["BSSID"].setText(status[self.iface]["acesspoint"])
 128                                         self["ESSID"].setText(status[self.iface]["essid"])
 129                                         self["quality"].setText(status[self.iface]["quality"])
 130                                         self["signal"].setText(status[self.iface]["signal"])
 131                                         self["bitrate"].setText(status[self.iface]["bitrate"])
 132                                         self["enc"].setText(status[self.iface]["encryption"])
 133                                         self.updateStatusLink(status)
 134
 135         def exit(self):
 136                 self.timer.stop()
 137                 self.close(True)
 138
 139         def updateStatusbar(self):
 140                 self["BSSID"].setText(_("Please wait..."))
 141                 self["ESSID"].setText(_("Please wait..."))
 142                 self["quality"].setText(_("Please wait..."))
 143                 self["signal"].setText(_("Please wait..."))
 144                 self["bitrate"].setText(_("Please wait..."))
 145                 self["enc"].setText(_("Please wait..."))
 146                 self["IFtext"].setText(_("Network:"))
 147                 self["IF"].setText(iNetwork.getFriendlyAdapterName(self.iface))
 148                 self["Statustext"].setText(_("Link:"))
 149
 150         def updateStatusLink(self,status):
 151                 if status is not None:
 152                         if status[self.iface]["acesspoint"] == "No Connection" or status[self.iface]["acesspoint"] == "Not-Associated" or status[self.iface]["acesspoint"] == False:
 153                                 self["statuspic"].setPixmapNum(1)
 154                         else:
 155                                 self["statuspic"].setPixmapNum(0)
 156                         self["statuspic"].show()
 157
 158
 159 class WlanScan(Screen):
 160         skin = """
 161                 <screen name="WlanScan" position="center,center" size="560,400" title="Choose a Wireless Network" >
 162                         <ePixmap pixmap="skin_default/buttons/red.png" position="0,0" size="140,40" alphatest="on" />
 163                         <ePixmap pixmap="skin_default/buttons/green.png" position="140,0" size="140,40" alphatest="on" />
 164                         <ePixmap pixmap="skin_default/buttons/yellow.png" position="280,0" size="140,40" alphatest="on" />
 165                         <widget source="key_red" render="Label" position="0,0" zPosition="1" size="140,40" font="Regular;20" halign="center" valign="center" backgroundColor="#9f1313" transparent="1" />
 166                         <widget source="key_green" render="Label" position="140,0" zPosition="1" size="140,40" font="Regular;20" halign="center" valign="center" backgroundColor="#1f771f" transparent="1" />
 167                         <widget source="key_yellow" render="Label" position="280,0" zPosition="1" size="140,40" font="Regular;20" halign="center" valign="center" backgroundColor="#a08500" transparent="1" />
 168                         <widget source="list" render="Listbox" position="5,40" size="550,300" scrollbarMode="showOnDemand">
 169                                 <convert type="TemplatedMultiContent">
 170                                         {"template": [
 171                                                         MultiContentEntryText(pos = (0, 0), size = (550, 30), font=0, flags = RT_HALIGN_LEFT, text = 0), # index 0 is the essid
 172                                                         MultiContentEntryText(pos = (0, 30), size = (175, 20), font=1, flags = RT_HALIGN_LEFT, text = 5), # index 5 is the interface
 173                                                         MultiContentEntryText(pos = (175, 30), size = (175, 20), font=1, flags = RT_HALIGN_LEFT, text = 4), # index 0 is the encryption
 174                                                         MultiContentEntryText(pos = (350, 0), size = (200, 20), font=1, flags = RT_HALIGN_LEFT, text = 2), # index 0 is the signal
 175                                                         MultiContentEntryText(pos = (350, 30), size = (200, 20), font=1, flags = RT_HALIGN_LEFT, text = 3), # index 0 is the maxrate
 176                                                         MultiContentEntryPixmapAlphaTest(pos = (0, 52), size = (550, 2), png = 6), # index 6 is the div pixmap
 177                                                 ],
 178                                         "fonts": [gFont("Regular", 28),gFont("Regular", 18)],
 179                                         "itemHeight": 54
 180                                         }
 181                                 </convert>
 182                         </widget>
 183                         <ePixmap pixmap="skin_default/div-h.png" position="0,340" zPosition="1" size="560,2" />
 184                         <widget source="info" render="Label" position="0,350" size="560,50" font="Regular;24" halign="center" valign="center" backgroundColor="#25062748" transparent="1" />
 185                 </screen>"""
 186
 187         def __init__(self, session, iface):
 188                 Screen.__init__(self, session)
 189                 self.session = session
 190                 self.iface = iface
 191                 self.skin_path = plugin_path
 192                 self.oldInterfaceState = iNetwork.getAdapterAttribute(self.iface, "up")
 193                 self.APList = None
 194                 self.newAPList = None
 195                 self.WlanList = None
 196                 self.cleanList = None
 197                 self.oldlist = {}
 198                 self.listLength = None
 199                 self.rescanTimer = eTimer()
 200                 self.rescanTimer.callback.append(self.rescanTimerFired)
 201
 202                 self["info"] = StaticText()
 203
 204                 self.list = []
 205                 self["list"] = List(self.list)
 206
 207                 self["key_red"] = StaticText(_("Close"))
 208                 self["key_green"] = StaticText(_("Connect"))
 209                 self["key_yellow"] = StaticText()
 210
 211                 self["actions"] = NumberActionMap(["WizardActions", "InputActions", "EPGSelectActions"],
 212                 {
 213                         "ok": self.select,
 214                         "back": self.cancel,
 215                 }, -1)
 216
 217                 self["shortcuts"] = ActionMap(["ShortcutActions"],
 218                 {
 219                         "red": self.cancel,
 220                         "green": self.select,
 221                 })
 222                 self.onLayoutFinish.append(self.layoutFinished)
 223                 self.getAccessPoints(refresh = False)
 224
 225         def layoutFinished(self):
 226                 self.setTitle(_("Choose a wireless network"))
 227
 228         def select(self):
 229                 cur = self["list"].getCurrent()
 230                 if cur is not None:
 231                         self.rescanTimer.stop()
 232                         del self.rescanTimer
 233                         if cur[1] is not None:
 234                                 if cur[1] == 'hidden...':
 235                                         essid = cur[1]
 236                                 else:
 237                                         essid = cur[0]
 238                                 self.close(essid,self.getWlanList())
 239                         else:
 240                                 self.close(None,None)
 241                 else:
 242                         self.rescanTimer.stop()
 243                         del self.rescanTimer
 244                         self.close(None,None)
 245
 246         def WlanSetupClosed(self, *ret):
 247                 if ret[0] == 2:
 248                         self.rescanTimer.stop()
 249                         del self.rescanTimer
 250                         self.close(None)
 251
 252         def cancel(self):
 253                 if self.oldInterfaceState is False:
 254                         iNetwork.setAdapterAttribute(self.iface, "up", False)
 255                         iNetwork.deactivateInterface(self.iface,self.deactivateInterfaceCB)
 256                 else:
 257                         self.rescanTimer.stop()
 258                         del self.rescanTimer
 259                         self.close(None)
 260
 261         def deactivateInterfaceCB(self,data):
 262                 if data is not None:
 263                         if data is True:
 264                                 self.rescanTimer.stop()
 265                                 del self.rescanTimer
 266                                 self.close(None)
 267
 268         def rescanTimerFired(self):
 269                 self.rescanTimer.stop()
 270                 self.updateAPList()
 271
 272         def buildEntryComponent(self, essid, bssid, encrypted, iface, maxrate, signal):
 273                 divpng = LoadPixmap(cached=True, path=resolveFilename(SCOPE_SKIN_IMAGE, "skin_default/div-h.png"))
 274                 encryption = encrypted and _("Yes") or _("No")
 275                 if bssid == 'hidden...':
 276                         return((essid, bssid, None, None, None, None, divpng))
 277                 else:
 278                         return((essid, bssid, _("Signal: ") + str(signal), _("Max. Bitrate: ") + str(maxrate), _("Encrypted: ") + encryption, _("Interface: ") + str(iface), divpng))
 279
 280         def updateAPList(self):
 281                 newList = []
 282                 newList = self.getAccessPoints(refresh = True)
 283                 self.newAPList = []
 284                 tmpList = []
 285                 newListIndex = None
 286                 currentListEntry = None
 287                 currentListIndex = None
 288
 289                 for ap in self.oldlist.keys():
 290                         data = self.oldlist[ap]['data']
 291                         if data is not None:
 292                                 tmpList.append(data)
 293
 294                 if len(tmpList):
 295                         if "hidden..." not in tmpList:
 296                                 tmpList.append( ( _("enter hidden network SSID"), "hidden...", True, self.iface, _("unavailable"), "" ) )
 297
 298                         for entry in tmpList:
 299                                 self.newAPList.append(self.buildEntryComponent( entry[0], entry[1], entry[2], entry[3], entry[4], entry[5] ))
 300
 301                         currentListEntry = self["list"].getCurrent()
 302                         idx = 0
 303                         for entry in self.newAPList:
 304                                 if entry[0] == currentListEntry[0]:
 305                                         newListIndex = idx
 306                                 idx +=1
 307                         self['list'].setList(self.newAPList)
 308                         self["list"].setIndex(newListIndex)
 309                         self["list"].updateList(self.newAPList)
 310                         self.listLength = len(self.newAPList)
 311                         self.buildWlanList()
 312                         self.setInfo()
 313
 314         def getAccessPoints(self, refresh = False):
 315                 self.APList = []
 316                 self.cleanList = []
 317                 self.w = Wlan(self.iface)
 318                 aps = self.w.getNetworkList()
 319                 if aps is not None:
 320                         print "[WirelessLan.py] got Accespoints!"
 321                         tmpList = []
 322                         compList = []
 323                         for ap in aps:
 324                                 a = aps[ap]
 325                                 if a['active']:
 326                                         tmpList.append( (a['essid'], a['bssid']) )
 327                                         compList.append( (a['essid'], a['bssid'], a['encrypted'], a['iface'], a['maxrate'], a['signal']) )
 328
 329                         for entry in tmpList:
 330                                 if entry[0] == "":
 331                                         for compentry in compList:
 332                                                 if compentry[1] == entry[1]:
 333                                                         compList.remove(compentry)
 334                         for entry in compList:
 335                                 self.cleanList.append( ( entry[0], entry[1], entry[2], entry[3], entry[4], entry[5] ) )
 336                                 if not self.oldlist.has_key(entry[0]):
 337                                         self.oldlist[entry[0]] = { 'data': entry }
 338                                 else:
 339                                         self.oldlist[entry[0]]['data'] = entry
 340
 341                 if "hidden..." not in self.cleanList:
 342                         self.cleanList.append( ( _("enter hidden network SSID"), "hidden...", True, self.iface, _("unavailable"), "" ) )
 343
 344                 for entry in self.cleanList:
 345                         self.APList.append(self.buildEntryComponent( entry[0], entry[1], entry[2], entry[3], entry[4], entry[5] ))
 346
 347                 if refresh is False:
 348                         self['list'].setList(self.APList)
 349                 self.listLength = len(self.APList)
 350                 self.setInfo()
 351                 self.rescanTimer.start(5000)
 352                 return self.cleanList
 353
 354         def setInfo(self):
 355                 length = self.getLength()
 356                 if length <= 1:
 357                         self["info"].setText(_("No wireless networks found! Please refresh."))
 358                 elif length == 2:
 359                         self["info"].setText(_("1 wireless network found!"))
 360                 else:
 361                         self["info"].setText(str(length-1)+_(" wireless networks found!"))
 362
 363         def buildWlanList(self):
 364                 self.WlanList = []
 365                 for entry in self['list'].list:
 366                         if entry[1] == "hidden...":
 367                                 self.WlanList.append(( "hidden...",_("enter hidden network SSID") ))#continue
 368                         else:
 369                                 self.WlanList.append( (entry[0], entry[0]) )
 370
 371         def getLength(self):
 372                 return self.listLength
 373
 374         def getWlanList(self):
 375                 if self.WlanList is None:
 376                         self.buildWlanList()
 377                 return self.WlanList
 378
 379
 380 def bin2long(s):
 381         return reduce( lambda x,y:(x<<8L)+y, map(ord, s))
 382
 383 def long2bin(l):
 384         res = ""
 385         for byte in range(128):
 386                 res += chr((l >> (1024 - (byte + 1) * 8)) & 0xff)
 387         return res
 388
 389 def rsa_pub1024(src, mod):
 390         return long2bin(pow(bin2long(src), 65537, bin2long(mod)))
 391
 392 def decrypt_block(src, mod):
 393         if len(src) != 128 and len(src) != 202:
 394                 return None
 395         dest = rsa_pub1024(src[:128], mod)
 396         hash = sha.new(dest[1:107])
 397         if len(src) == 202:
 398                 hash.update(src[131:192])
 399         result = hash.digest()
 400         if result == dest[107:127]:
 401                 return dest
 402         return None
 403
 404 def validate_certificate(cert, key):
 405         buf = decrypt_block(cert[8:], key)
 406         if buf is None:
 407                 return None
 408         return buf[36:107] + cert[139:196]
 409
 410 def get_random():
 411         try:
 412                 xor = lambda a,b: ''.join(chr(ord(c)^ord(d)) for c,d in zip(a,b*100))
 413                 random = urandom(8)
 414                 x = str(time())[-8:]
 415                 result = xor(random, x)
 416
 417                 return result
 418         except:
 419                 return None
 420
 421 def WlanStatusScreenMain(session, iface):
 422         session.open(WlanStatus, iface)
 423
 424 def callFunction(iface):
 425         w = Wlan(iface)
 426         i = w.getWirelessInterfaces()
 427         if i:
 428                 if iface in i:
 429                         return WlanStatusScreenMain
 430                 else:
 431                         if iNetwork.isWirelessInterface(iface):
 432                                 return WlanStatusScreenMain
 433                         else:
 434                                 return None
 435         return None
 436
 437 def configStrings(iface):
 438         hardware_info = HardwareInfo()
 439         if  hardware_info.device_name != "dm7025":
 440                 rootkey = ['\x9f', '|', '\xe4', 'G', '\xc9', '\xb4', '\xf4', '#', '&', '\xce', '\xb3', '\xfe', '\xda', '\xc9', 'U', '`', '\xd8', '\x8c', 's', 'o', '\x90', '\x9b', '\\', 'b', '\xc0', '\x89', '\xd1', '\x8c', '\x9e', 'J', 'T', '\xc5', 'X', '\xa1', '\xb8', '\x13', '5', 'E', '\x02', '\xc9', '\xb2', '\xe6', 't', '\x89', '\xde', '\xcd', '\x9d', '\x11', '\xdd', '\xc7', '\xf4', '\xe4', '\xe4', '\xbc', '\xdb', '\x9c', '\xea', '}', '\xad', '\xda', 't', 'r', '\x9b', '\xdc', '\xbc', '\x18', '3', '\xe7', '\xaf', '|', '\xae', '\x0c', '\xe3', '\xb5', '\x84', '\x8d', '\r', '\x8d', '\x9d', '2', '\xd0', '\xce', '\xd5', 'q', '\t', '\x84', 'c', '\xa8', ')', '\x99', '\xdc', '<', '"', 'x', '\xe8', '\x87', '\x8f', '\x02', ';', 'S', 'm', '\xd5', '\xf0', '\xa3', '_', '\xb7', 'T', '\t', '\xde', '\xa7', '\xf1', '\xc9', '\xae', '\x8a', '\xd7', '\xd2', '\xcf', '\xb2', '.', '\x13', '\xfb', '\xac', 'j', '\xdf', '\xb1', '\x1d', ':', '?']
 441                 etpm = eTPM()
 442                 l2cert = etpm.getCert(eTPM.TPMD_DT_LEVEL2_CERT)
 443                 if l2cert is None:
 444                         return
 445                 l2key = validate_certificate(l2cert, rootkey)
 446                 if l2key is None:
 447                         return
 448                 l3cert = etpm.getCert(eTPM.TPMD_DT_LEVEL3_CERT)
 449                 if l3cert is None:
 450                         return
 451                 l3key = validate_certificate(l3cert, l2key)
 452                 if l3key is None:
 453                         return
 454                 rnd = get_random()
 455                 if rnd is None:
 456                         return
 457                 val = etpm.challenge(rnd)
 458                 result = decrypt_block(val, l3key)
 459         if hardware_info.device_name == "dm7025" or result[80:88] == rnd:
 460                 driver = iNetwork.detectWlanModule(iface)
 461         else:
 462                 driver = 'dreambox'
 463         print 'Using "%s" as wpa-supplicant driver' % (driver)
 464         ret = ""
 465         if config.plugins.wlan.essid.value == "hidden...":
 466                 ret += "\tpre-up iwconfig " + iface + " essid \"" + config.plugins.wlan.hiddenessid.value + "\" || true\n"
 467         ret += "\tpre-up wpa_supplicant -i" + iface + " -c/etc/" + iface + "_wpa_supplicant.conf -B -dd -D" + driver + " || true\n"
 468         ret += "\tpre-down wpa_cli -i" + iface + " terminate || true\n"
 469         return ret
 470
 471 def Plugins(**kwargs):
 472         return PluginDescriptor(name=_("Wireless LAN"), description=_("Connect to a Wireless Network"), where = PluginDescriptor.WHERE_NETWORKSETUP, needsRestart = False, fnc={"ifaceSupported": callFunction, "configStrings": configStrings, "WlanPluginEntry": lambda x: "Wireless Network Configuartion..."})