lib/python/Components/Network.py

   1 from os import system, popen, path as os_path, listdir
   2 from re import compile as re_compile, search as re_search
   3 from socket import *
   4 from enigma import eConsoleAppContainer
   5 from Components.Console import Console
   6 from Components.PluginComponent import plugins
   7 from Plugins.Plugin import PluginDescriptor
   8
   9 class Network:
  10         def __init__(self):
  11                 self.ifaces = {}
  12                 self.configuredInterfaces = []
  13                 self.configuredNetworkAdapters = []
  14                 self.NetworkState = 0
  15                 self.DnsState = 0
  16                 self.nameservers = []
  17                 self.ethtool_bin = "/usr/sbin/ethtool"
  18                 self.container = eConsoleAppContainer()
  19                 self.Console = Console()
  20                 self.LinkConsole = Console()
  21                 self.restartConsole = Console()
  22                 self.deactivateConsole = Console()
  23                 self.deactivateInterfaceConsole = Console()
  24                 self.activateConsole = Console()
  25                 self.resetNetworkConsole = Console()
  26                 self.DnsConsole = Console()
  27                 self.config_ready = None
  28                 self.getInterfaces()
  29
  30         def getInterfaces(self, callback = None):
  31                 devicesPattern = re_compile('[a-z]+[0-9]+')
  32                 self.configuredInterfaces = []
  33                 fp = file('/proc/net/dev', 'r')
  34                 result = fp.readlines()
  35                 fp.close()
  36                 for line in result:
  37                         try:
  38                                 device = devicesPattern.search(line).group()
  39                                 if device == 'wifi0':
  40                                         continue
  41                                 self.getDataForInterface(device, callback)
  42                         except AttributeError:
  43                                 pass
  44                 #print "self.ifaces:", self.ifaces
  45                 #self.writeNetworkConfig()
  46                 #print ord(' ')
  47                 #for line in result:
  48                 #       print ord(line[0])
  49
  50         # helper function
  51         def regExpMatch(self, pattern, string):
  52                 if string is None:
  53                         return None
  54                 try:
  55                         return pattern.search(string).group()
  56                 except AttributeError:
  57                         None
  58
  59         # helper function to convert ips from a sring to a list of ints
  60         def convertIP(self, ip):
  61                 strIP = ip.split('.')
  62                 ip = []
  63                 for x in strIP:
  64                         ip.append(int(x))
  65                 return ip
  66
  67         def getDataForInterface(self, iface,callback):
  68                 #get ip out of ip addr, as avahi sometimes overrides it in ifconfig.
  69                 if not self.Console:
  70                         self.Console = Console()
  71                 cmd = "ip -o addr"
  72                 self.Console.ePopen(cmd, self.IPaddrFinished, [iface,callback])
  73
  74         def IPaddrFinished(self, result, retval, extra_args):
  75                 (iface, callback ) = extra_args
  76                 data = { 'up': False, 'dhcp': False, 'preup' : False, 'postdown' : False }
  77                 globalIPpattern = re_compile("scope global")
  78                 ipRegexp = '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'
  79                 netRegexp = '[0-9]{1,2}'
  80                 macRegexp = '[0-9]{2}\:[0-9]{2}\:[0-9]{2}\:[a-z0-9]{2}\:[a-z0-9]{2}\:[a-z0-9]{2}'
  81                 ipLinePattern = re_compile('inet ' + ipRegexp + '/')
  82                 ipPattern = re_compile(ipRegexp)
  83                 netmaskLinePattern = re_compile('/' + netRegexp)
  84                 netmaskPattern = re_compile(netRegexp)
  85                 bcastLinePattern = re_compile(' brd ' + ipRegexp)
  86                 upPattern = re_compile('UP')
  87                 macPattern = re_compile('[0-9]{2}\:[0-9]{2}\:[0-9]{2}\:[a-z0-9]{2}\:[a-z0-9]{2}\:[a-z0-9]{2}')
  88                 macLinePattern = re_compile('link/ether ' + macRegexp)
  89
  90                 for line in result.splitlines():
  91                         split = line.strip().split(' ',2)
  92                         if (split[1][:-1] == iface):
  93                                 up = self.regExpMatch(upPattern, split[2])
  94                                 mac = self.regExpMatch(macPattern, self.regExpMatch(macLinePattern, split[2]))
  95                                 if up is not None:
  96                                         data['up'] = True
  97                                         if iface is not 'lo':
  98                                                 self.configuredInterfaces.append(iface)
  99                                 if mac is not None:
 100                                         data['mac'] = mac
 101                         if (split[1] == iface):
 102                                 if re_search(globalIPpattern, split[2]):
 103                                         ip = self.regExpMatch(ipPattern, self.regExpMatch(ipLinePattern, split[2]))
 104                                         netmask = self.calc_netmask(self.regExpMatch(netmaskPattern, self.regExpMatch(netmaskLinePattern, split[2])))
 105                                         bcast = self.regExpMatch(ipPattern, self.regExpMatch(bcastLinePattern, split[2]))
 106                                         if ip is not None:
 107                                                 data['ip'] = self.convertIP(ip)
 108                                         if netmask is not None:
 109                                                 data['netmask'] = self.convertIP(netmask)
 110                                         if bcast is not None:
 111                                                 data['bcast'] = self.convertIP(bcast)
 112
 113                 if not data.has_key('ip'):
 114                         data['dhcp'] = True
 115                         data['ip'] = [0, 0, 0, 0]
 116                         data['netmask'] = [0, 0, 0, 0]
 117                         data['gateway'] = [0, 0, 0, 0]
 118
 119                 cmd = "route -n | grep  " + iface
 120                 self.Console.ePopen(cmd,self.routeFinished, [iface, data, callback])
 121
 122         def routeFinished(self, result, retval, extra_args):
 123                 (iface, data, callback) = extra_args
 124                 ipRegexp = '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'
 125                 ipPattern = re_compile(ipRegexp)
 126                 ipLinePattern = re_compile(ipRegexp)
 127
 128                 for line in result.splitlines():
 129                         print line[0:7]
 130                         if line[0:7] == "0.0.0.0":
 131                                 gateway = self.regExpMatch(ipPattern, line[16:31])
 132                                 if gateway is not None:
 133                                         data['gateway'] = self.convertIP(gateway)
 134
 135                 self.ifaces[iface] = data
 136                 self.loadNetworkConfig(iface,callback)
 137
 138         def writeNetworkConfig(self):
 139                 self.configuredInterfaces = []
 140                 fp = file('/etc/network/interfaces', 'w')
 141                 fp.write("# automatically generated by enigma 2\n# do NOT change manually!\n\n")
 142                 fp.write("auto lo\n")
 143                 fp.write("iface lo inet loopback\n\n")
 144                 for ifacename, iface in self.ifaces.items():
 145                         if iface['up'] == True:
 146                                 fp.write("auto " + ifacename + "\n")
 147                                 self.configuredInterfaces.append(ifacename)
 148                         if iface['dhcp'] == True:
 149                                 fp.write("iface "+ ifacename +" inet dhcp\n")
 150                         if iface['dhcp'] == False:
 151                                 fp.write("iface "+ ifacename +" inet static\n")
 152                                 if iface.has_key('ip'):
 153                                         print tuple(iface['ip'])
 154                                         fp.write("      address %d.%d.%d.%d\n" % tuple(iface['ip']))
 155                                         fp.write("      netmask %d.%d.%d.%d\n" % tuple(iface['netmask']))
 156                                         if iface.has_key('gateway'):
 157                                                 fp.write("      gateway %d.%d.%d.%d\n" % tuple(iface['gateway']))
 158                         if iface.has_key("configStrings"):
 159                                 fp.write("\n" + iface["configStrings"] + "\n")
 160                         if iface["preup"] is not False and not iface.has_key("configStrings"):
 161                                 fp.write(iface["preup"])
 162                                 fp.write(iface["postdown"])
 163                         fp.write("\n")
 164                 fp.close()
 165                 self.writeNameserverConfig()
 166
 167         def writeNameserverConfig(self):
 168                 fp = file('/etc/resolv.conf', 'w')
 169                 for nameserver in self.nameservers:
 170                         fp.write("nameserver %d.%d.%d.%d\n" % tuple(nameserver))
 171                 fp.close()
 172
 173         def loadNetworkConfig(self,iface,callback = None):
 174                 interfaces = []
 175                 # parse the interfaces-file
 176                 try:
 177                         fp = file('/etc/network/interfaces', 'r')
 178                         interfaces = fp.readlines()
 179                         fp.close()
 180                 except:
 181                         print "[Network.py] interfaces - opening failed"
 182
 183                 ifaces = {}
 184                 currif = ""
 185                 for i in interfaces:
 186                         split = i.strip().split(' ')
 187                         if (split[0] == "iface"):
 188                                 currif = split[1]
 189                                 ifaces[currif] = {}
 190                                 if (len(split) == 4 and split[3] == "dhcp"):
 191                                         ifaces[currif]["dhcp"] = True
 192                                 else:
 193                                         ifaces[currif]["dhcp"] = False
 194                         if (currif == iface): #read information only for available interfaces
 195                                 if (split[0] == "address"):
 196                                         ifaces[currif]["address"] = map(int, split[1].split('.'))
 197                                         if self.ifaces[currif].has_key("ip"):
 198                                                 if self.ifaces[currif]["ip"] != ifaces[currif]["address"] and ifaces[currif]["dhcp"] == False:
 199                                                         self.ifaces[currif]["ip"] = map(int, split[1].split('.'))
 200                                 if (split[0] == "netmask"):
 201                                         ifaces[currif]["netmask"] = map(int, split[1].split('.'))
 202                                         if self.ifaces[currif].has_key("netmask"):
 203                                                 if self.ifaces[currif]["netmask"] != ifaces[currif]["netmask"] and ifaces[currif]["dhcp"] == False:
 204                                                         self.ifaces[currif]["netmask"] = map(int, split[1].split('.'))
 205                                 if (split[0] == "gateway"):
 206                                         ifaces[currif]["gateway"] = map(int, split[1].split('.'))
 207                                         if self.ifaces[currif].has_key("gateway"):
 208                                                 if self.ifaces[currif]["gateway"] != ifaces[currif]["gateway"] and ifaces[currif]["dhcp"] == False:
 209                                                         self.ifaces[currif]["gateway"] = map(int, split[1].split('.'))
 210                                 if (split[0] == "pre-up"):
 211                                         if self.ifaces[currif].has_key("preup"):
 212                                                 self.ifaces[currif]["preup"] = i
 213                                 if (split[0] == "post-down"):
 214                                         if self.ifaces[currif].has_key("postdown"):
 215                                                 self.ifaces[currif]["postdown"] = i
 216
 217                 for ifacename, iface in ifaces.items():
 218                         if self.ifaces.has_key(ifacename):
 219                                 self.ifaces[ifacename]["dhcp"] = iface["dhcp"]
 220                 if self.Console:
 221                         if len(self.Console.appContainers) == 0:
 222                                 # save configured interfacelist
 223                                 self.configuredNetworkAdapters = self.configuredInterfaces
 224                                 # load ns only once
 225                                 self.loadNameserverConfig()
 226                                 print "read configured interfac:", ifaces
 227                                 print "self.ifaces after loading:", self.ifaces
 228                                 self.config_ready = True
 229                                 self.msgPlugins()
 230                                 if callback is not None:
 231                                         callback(True)
 232
 233         def loadNameserverConfig(self):
 234                 ipRegexp = "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}"
 235                 nameserverPattern = re_compile("nameserver +" + ipRegexp)
 236                 ipPattern = re_compile(ipRegexp)
 237
 238                 resolv = []
 239                 try:
 240                         fp = file('/etc/resolv.conf', 'r')
 241                         resolv = fp.readlines()
 242                         fp.close()
 243                         self.nameservers = []
 244                 except:
 245                         print "[Network.py] resolv.conf - opening failed"
 246
 247                 for line in resolv:
 248                         if self.regExpMatch(nameserverPattern, line) is not None:
 249                                 ip = self.regExpMatch(ipPattern, line)
 250                                 if ip is not None:
 251                                         self.nameservers.append(self.convertIP(ip))
 252
 253                 print "nameservers:", self.nameservers
 254
 255         def deactivateNetworkConfig(self, callback = None):
 256                 self.deactivateConsole = Console()
 257                 self.commands = []
 258                 self.commands.append("/etc/init.d/avahi-daemon stop")
 259                 for iface in self.ifaces.keys():
 260                         cmd = "ip addr flush " + iface
 261                         self.commands.append(cmd)
 262                 self.commands.append("/etc/init.d/networking stop")
 263                 self.commands.append("killall -9 udhcpc")
 264                 self.commands.append("rm /var/run/udhcpc*")
 265                 self.deactivateConsole.eBatch(self.commands, self.deactivateNetworkFinished, callback, debug=True)
 266
 267         def deactivateNetworkFinished(self,extra_args):
 268                 callback = extra_args
 269                 if len(self.deactivateConsole.appContainers) == 0:
 270                         if callback is not None:
 271                                 callback(True)
 272
 273         def activateNetworkConfig(self, callback = None):
 274                 self.activateConsole = Console()
 275                 self.commands = []
 276                 self.commands.append("/etc/init.d/networking start")
 277                 self.commands.append("/etc/init.d/avahi-daemon start")
 278                 self.activateConsole.eBatch(self.commands, self.activateNetworkFinished, callback, debug=True)
 279
 280         def activateNetworkFinished(self,extra_args):
 281                 callback = extra_args
 282                 if len(self.activateConsole.appContainers) == 0:
 283                         if callback is not None:
 284                                 callback(True)
 285
 286         def getConfiguredAdapters(self):
 287                 return self.configuredNetworkAdapters
 288
 289         def getNumberOfAdapters(self):
 290                 return len(self.ifaces)
 291
 292         def getFriendlyAdapterName(self, x):
 293                 # maybe this needs to be replaced by an external list.
 294                 friendlyNames = {
 295                         "eth0": _("Integrated Ethernet"),
 296                         "wlan0": _("Wireless"),
 297                         "ath0": _("Integrated Wireless")
 298                 }
 299                 return friendlyNames.get(x, x) # when we have no friendly name, use adapter name
 300
 301         def getAdapterName(self, iface):
 302                 return iface
 303
 304         def getAdapterList(self):
 305                 return self.ifaces.keys()
 306
 307         def getAdapterAttribute(self, iface, attribute):
 308                 if self.ifaces.has_key(iface):
 309                         if self.ifaces[iface].has_key(attribute):
 310                                 return self.ifaces[iface][attribute]
 311                 return None
 312
 313         def setAdapterAttribute(self, iface, attribute, value):
 314                 print "setting for adapter", iface, "attribute", attribute, " to value", value
 315                 if self.ifaces.has_key(iface):
 316                         self.ifaces[iface][attribute] = value
 317
 318         def removeAdapterAttribute(self, iface, attribute):
 319                 if self.ifaces.has_key(iface):
 320                         if self.ifaces[iface].has_key(attribute):
 321                                 del self.ifaces[iface][attribute]
 322
 323         def getNameserverList(self):
 324                 if len(self.nameservers) == 0:
 325                         return [[0, 0, 0, 0], [0, 0, 0, 0]]
 326                 else:
 327                         return self.nameservers
 328
 329         def clearNameservers(self):
 330                 self.nameservers = []
 331
 332         def addNameserver(self, nameserver):
 333                 if nameserver not in self.nameservers:
 334                         self.nameservers.append(nameserver)
 335
 336         def removeNameserver(self, nameserver):
 337                 if nameserver in self.nameservers:
 338                         self.nameservers.remove(nameserver)
 339
 340         def changeNameserver(self, oldnameserver, newnameserver):
 341                 if oldnameserver in self.nameservers:
 342                         for i in range(len(self.nameservers)):
 343                                 if self.nameservers[i] == oldnameserver:
 344                                         self.nameservers[i] = newnameserver
 345
 346         def resetNetworkConfig(self, mode='lan', callback = None):
 347                 self.resetNetworkConsole = Console()
 348                 self.commands = []
 349                 self.commands.append("/etc/init.d/avahi-daemon stop")
 350                 for iface in self.ifaces.keys():
 351                         cmd = "ip addr flush " + iface
 352                         self.commands.append(cmd)
 353                 self.commands.append("/etc/init.d/networking stop")
 354                 self.commands.append("killall -9 udhcpc")
 355                 self.commands.append("rm /var/run/udhcpc*")
 356                 self.resetNetworkConsole.eBatch(self.commands, self.resetNetworkFinishedCB, [mode, callback], debug=True)
 357
 358         def resetNetworkFinishedCB(self, extra_args):
 359                 (mode, callback) = extra_args
 360                 if len(self.resetNetworkConsole.appContainers) == 0:
 361                         self.writeDefaultNetworkConfig(mode, callback)
 362
 363         def writeDefaultNetworkConfig(self,mode='lan', callback = None):
 364                 fp = file('/etc/network/interfaces', 'w')
 365                 fp.write("# automatically generated by enigma 2\n# do NOT change manually!\n\n")
 366                 fp.write("auto lo\n")
 367                 fp.write("iface lo inet loopback\n\n")
 368                 if mode == 'wlan':
 369                         fp.write("auto wlan0\n")
 370                         fp.write("iface wlan0 inet dhcp\n")
 371                 if mode == 'wlan-mpci':
 372                         fp.write("auto ath0\n")
 373                         fp.write("iface ath0 inet dhcp\n")
 374                 if mode == 'lan':
 375                         fp.write("auto eth0\n")
 376                         fp.write("iface eth0 inet dhcp\n")
 377                 fp.write("\n")
 378                 fp.close()
 379
 380                 self.resetNetworkConsole = Console()
 381                 self.commands = []
 382                 if mode == 'wlan':
 383                         self.commands.append("ifconfig eth0 down")
 384                         self.commands.append("ifconfig ath0 down")
 385                         self.commands.append("ifconfig wlan0 up")
 386                 if mode == 'wlan-mpci':
 387                         self.commands.append("ifconfig eth0 down")
 388                         self.commands.append("ifconfig wlan0 down")
 389                         self.commands.append("ifconfig ath0 up")
 390                 if mode == 'lan':
 391                         self.commands.append("ifconfig eth0 up")
 392                         self.commands.append("ifconfig wlan0 down")
 393                         self.commands.append("ifconfig ath0 down")
 394                 self.commands.append("/etc/init.d/avahi-daemon start")
 395                 self.resetNetworkConsole.eBatch(self.commands, self.resetNetworkFinished, [mode,callback], debug=True)
 396
 397         def resetNetworkFinished(self,extra_args):
 398                 (mode, callback) = extra_args
 399                 if len(self.resetNetworkConsole.appContainers) == 0:
 400                         if callback is not None:
 401                                 callback(True,mode)
 402
 403         def checkNetworkState(self,statecallback):
 404                 # www.dream-multimedia-tv.de, www.heise.de, www.google.de
 405                 cmd1 = "ping -c 1 82.149.226.170"
 406                 cmd2 = "ping -c 1 193.99.144.85"
 407                 cmd3 = "ping -c 1 209.85.135.103"
 408                 self.PingConsole = Console()
 409                 self.PingConsole.ePopen(cmd1, self.checkNetworkStateFinished,statecallback)
 410                 self.PingConsole.ePopen(cmd2, self.checkNetworkStateFinished,statecallback)
 411                 self.PingConsole.ePopen(cmd3, self.checkNetworkStateFinished,statecallback)
 412
 413         def checkNetworkStateFinished(self, result, retval,extra_args):
 414                 (statecallback) = extra_args
 415                 if self.PingConsole is not None:
 416                         if retval == 0:
 417                                 self.PingConsole = None
 418                                 statecallback(self.NetworkState)
 419                         else:
 420                                 self.NetworkState += 1
 421                                 if len(self.PingConsole.appContainers) == 0:
 422                                         statecallback(self.NetworkState)
 423
 424         def restartNetwork(self,callback = None):
 425                 self.restartConsole = Console()
 426                 self.config_ready = False
 427                 self.msgPlugins()
 428                 self.commands = []
 429                 self.commands.append("/etc/init.d/avahi-daemon stop")
 430                 for iface in self.ifaces.keys():
 431                         cmd = "ip addr flush " + iface
 432                         self.commands.append(cmd)
 433                 self.commands.append("/etc/init.d/networking stop")
 434                 self.commands.append("killall -9 udhcpc")
 435                 self.commands.append("rm /var/run/udhcpc*")
 436                 self.commands.append("/etc/init.d/networking start")
 437                 self.commands.append("/etc/init.d/avahi-daemon start")
 438                 self.restartConsole.eBatch(self.commands, self.restartNetworkFinished, callback, debug=True)
 439
 440         def restartNetworkFinished(self,extra_args):
 441                 ( callback ) = extra_args
 442                 if callback is not None:
 443                         callback(True)
 444
 445         def getLinkState(self,iface,callback):
 446                 cmd = self.ethtool_bin + " " + iface
 447                 self.LinkConsole = Console()
 448                 self.LinkConsole.ePopen(cmd, self.getLinkStateFinished,callback)
 449
 450         def getLinkStateFinished(self, result, retval,extra_args):
 451                 (callback) = extra_args
 452                 if self.LinkConsole is not None:
 453                         if len(self.LinkConsole.appContainers) == 0:
 454                                 callback(result)
 455
 456         def stopLinkStateConsole(self):
 457                 if self.LinkConsole is not None:
 458                         if len(self.LinkConsole.appContainers):
 459                                 for name in self.LinkConsole.appContainers.keys():
 460                                         self.LinkConsole.kill(name)
 461
 462         def stopDNSConsole(self):
 463                 if self.DnsConsole is not None:
 464                         if len(self.DnsConsole.appContainers):
 465                                 for name in self.DnsConsole.appContainers.keys():
 466                                         self.DnsConsole.kill(name)
 467
 468         def stopRestartConsole(self):
 469                 if self.restartConsole is not None:
 470                         if len(self.restartConsole.appContainers):
 471                                 for name in self.restartConsole.appContainers.keys():
 472                                         self.restartConsole.kill(name)
 473
 474         def stopGetInterfacesConsole(self):
 475                 if self.Console is not None:
 476                         if len(self.Console.appContainers):
 477                                 for name in self.Console.appContainers.keys():
 478                                         self.Console.kill(name)
 479
 480         def stopDeactivateInterfaceConsole(self):
 481                 if self.deactivateInterfaceConsole is not None:
 482                         if len(self.deactivateInterfaceConsole.appContainers):
 483                                 for name in self.deactivateInterfaceConsole.appContainers.keys():
 484                                         self.deactivateInterfaceConsole.kill(name)
 485
 486         def checkforInterface(self,iface):
 487                 if self.getAdapterAttribute(iface, 'up') is True:
 488                         return True
 489                 else:
 490                         ret=system("ifconfig " + iface + " up")
 491                         system("ifconfig " + iface + " down")
 492                         if ret == 0:
 493                                 return True
 494                         else:
 495                                 return False
 496
 497         def checkDNSLookup(self,statecallback):
 498                 cmd1 = "nslookup www.dream-multimedia-tv.de"
 499                 cmd2 = "nslookup www.heise.de"
 500                 cmd3 = "nslookup www.google.de"
 501                 self.DnsConsole = Console()
 502                 self.DnsConsole.ePopen(cmd1, self.checkDNSLookupFinished,statecallback)
 503                 self.DnsConsole.ePopen(cmd2, self.checkDNSLookupFinished,statecallback)
 504                 self.DnsConsole.ePopen(cmd3, self.checkDNSLookupFinished,statecallback)
 505
 506         def checkDNSLookupFinished(self, result, retval,extra_args):
 507                 (statecallback) = extra_args
 508                 if self.DnsConsole is not None:
 509                         if retval == 0:
 510                                 self.DnsConsole = None
 511                                 statecallback(self.DnsState)
 512                         else:
 513                                 self.DnsState += 1
 514                                 if len(self.DnsConsole.appContainers) == 0:
 515                                         statecallback(self.DnsState)
 516
 517         def deactivateInterface(self,iface,callback = None):
 518                 self.deactivateInterfaceConsole = Console()
 519                 self.commands = []
 520                 cmd1 = "ip addr flush " + iface
 521                 cmd2 = "ifconfig " + iface + " down"
 522                 self.commands.append(cmd1)
 523                 self.commands.append(cmd2)
 524                 self.deactivateInterfaceConsole.eBatch(self.commands, self.deactivateInterfaceFinished, callback, debug=True)
 525
 526         def deactivateInterfaceFinished(self,extra_args):
 527                 callback = extra_args
 528                 if self.deactivateInterfaceConsole:
 529                         if len(self.deactivateInterfaceConsole.appContainers) == 0:
 530                                 if callback is not None:
 531                                         callback(True)
 532
 533         def detectWlanModule(self):
 534                 self.wlanmodule = None
 535                 rt73_dir = "/sys/bus/usb/drivers/rt73/"
 536                 zd1211b_dir = "/sys/bus/usb/drivers/zd1211b/"
 537                 madwifi_dir = "/sys/bus/pci/drivers/ath_pci/"
 538                 if os_path.exists(madwifi_dir):
 539                         files = listdir(madwifi_dir)
 540                         if len(files) >= 1:
 541                                 self.wlanmodule = 'madwifi'
 542                 if os_path.exists(rt73_dir):
 543                         rtfiles = listdir(rt73_dir)
 544                         if len(rtfiles) == 2:
 545                                 self.wlanmodule = 'ralink'
 546                 if os_path.exists(zd1211b_dir):
 547                         zdfiles = listdir(zd1211b_dir)
 548                         if len(zdfiles) == 1:
 549                                 self.wlanmodule = 'zydas'
 550                 return self.wlanmodule
 551
 552         def calc_netmask(self,nmask):
 553                 from struct import pack, unpack
 554                 from socket import inet_ntoa, inet_aton
 555                 mask = 1L<<31
 556                 xnet = (1L<<32)-1
 557                 cidr_range = range(0, 32)
 558                 cidr = long(nmask)
 559                 if cidr not in cidr_range:
 560                         print 'cidr invalid: %d' % cidr
 561                         return None
 562                 else:
 563                         nm = ((1L<<cidr)-1)<<(32-cidr)
 564                         netmask = str(inet_ntoa(pack('>L', nm)))
 565                         return netmask
 566
 567         def msgPlugins(self):
 568                 if self.config_ready is not None:
 569                         for p in plugins.getPlugins(PluginDescriptor.WHERE_NETWORKCONFIG_READ):
 570                                 p(reason=self.config_ready)
 571
 572 iNetwork = Network()
 573
 574 def InitNetwork():
 575         pass