code.vuplus.com Git - vuplus_dvbapp/blob - 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
   7 class Network:
   8         def __init__(self):
   9                 self.ifaces = {}
  10                 self.configuredInterfaces = []
  11                 self.nameservers = []
  12                 self.ethtool_bin = "/usr/sbin/ethtool"
  13                 self.container = eConsoleAppContainer()
  14                 self.Console = Console()
  15                 self.getInterfaces()
  16
  17         def getInterfaces(self, callback = None):
  18                 devicesPattern = re_compile('[a-z]+[0-9]+')
  19                 self.configuredInterfaces = []
  20                 fp = file('/proc/net/dev', 'r')
  21                 result = fp.readlines()
  22                 fp.close()
  23                 for line in result:
  24                         try:
  25                                 device = devicesPattern.search(line).group()
  26                                 if device == 'wifi0':
  27                                         continue
  28                                 self.getDataForInterface(device, callback)
  29                         except AttributeError:
  30                                 pass
  31
  32         # helper function
  33         def regExpMatch(self, pattern, string):
  34                 if string is None:
  35                         return None
  36                 try:
  37                         return pattern.search(string).group()
  38                 except AttributeError:
  39                         None
  40
  41         # helper function to convert ips from a sring to a list of ints
  42         def convertIP(self, ip):
  43                 strIP = ip.split('.')
  44                 ip = []
  45                 for x in strIP:
  46                         ip.append(int(x))
  47                 return ip
  48
  49         def IPaddrFinished(self, result, retval, extra_args):
  50                 (iface, callback ) = extra_args
  51                 data = { 'up': False, 'dhcp': False, 'preup' : False, 'postdown' : False }
  52                 globalIPpattern = re_compile("scope global")
  53                 ipRegexp = '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'
  54                 ipLinePattern = re_compile('inet ' + ipRegexp +'/')
  55                 ipPattern = re_compile(ipRegexp)
  56
  57                 for line in result.splitlines():
  58                         split = line.strip().split(' ',2)
  59                         if (split[1] == iface):
  60                                 if re_search(globalIPpattern, split[2]):
  61                                         ip = self.regExpMatch(ipPattern, self.regExpMatch(ipLinePattern, split[2]))
  62                                         if ip is not None:
  63                                                 data['ip'] = self.convertIP(ip)
  64                 if not data.has_key('ip'):
  65                         data['dhcp'] = True
  66                         data['ip'] = [0, 0, 0, 0]
  67                         data['netmask'] = [0, 0, 0, 0]
  68                         data['gateway'] = [0, 0, 0, 0]
  69
  70                 cmd = "ifconfig " + iface
  71                 self.Console.ePopen(cmd, self.ifconfigFinished, [iface, data, callback])
  72
  73         def getDataForInterface(self, iface,callback):
  74                 #get ip out of ip addr, as avahi sometimes overrides it in ifconfig.
  75                 cmd = "ip -o addr"
  76                 self.Console.ePopen(cmd, self.IPaddrFinished, [iface,callback])
  77
  78         def ifconfigFinished(self, result, retval, extra_args ):
  79                 (iface, data, callback ) = extra_args
  80                 ipRegexp = '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'
  81                 ipLinePattern = re_compile('inet addr:' + ipRegexp)
  82                 netmaskLinePattern = re_compile('Mask:' + ipRegexp)
  83                 bcastLinePattern = re_compile('Bcast:' + ipRegexp)
  84                 ipPattern = re_compile(ipRegexp)
  85                 upPattern = re_compile('UP ')
  86                 macPattern = re_compile('[0-9]{2}\:[0-9]{2}\:[0-9]{2}\:[0-9]{2}\:[0-9]{2}\:[0-9]{2}')
  87
  88                 for line in result.splitlines():
  89                         #ip = self.regExpMatch(ipPattern, self.regExpMatch(ipLinePattern, line))
  90                         netmask = self.regExpMatch(ipPattern, self.regExpMatch(netmaskLinePattern, line))
  91                         bcast = self.regExpMatch(ipPattern, self.regExpMatch(bcastLinePattern, line))
  92                         up = self.regExpMatch(upPattern, line)
  93                         mac = self.regExpMatch(macPattern, line)
  94                         #if ip is not None:
  95                         #       data['ip'] = self.convertIP(ip)
  96                         if netmask is not None:
  97                                 data['netmask'] = self.convertIP(netmask)
  98                         if bcast is not None:
  99                                 data['bcast'] = self.convertIP(bcast)
 100                         if up is not None:
 101                                 data['up'] = True
 102                                 if iface is not 'lo':
 103                                         self.configuredInterfaces.append(iface)
 104                         if mac is not None:
 105                                 data['mac'] = mac
 106
 107                 cmd = "route -n | grep  " + iface
 108                 self.Console.ePopen(cmd,self.routeFinished,[iface,data,callback])
 109
 110         def routeFinished(self, result, retval, extra_args):
 111                 (iface, data, callback) = extra_args
 112                 ipRegexp = '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'
 113                 ipPattern = re_compile(ipRegexp)
 114                 ipLinePattern = re_compile(ipRegexp)
 115
 116                 for line in result.splitlines():
 117                         print line[0:7]
 118                         if line[0:7] == "0.0.0.0":
 119                                 gateway = self.regExpMatch(ipPattern, line[16:31])
 120                                 if gateway is not None:
 121                                         data['gateway'] = self.convertIP(gateway)
 122
 123                 for line in result.splitlines(): #get real netmask in case avahi has overridden ifconfig netmask
 124                         split = line.strip().split('   ')
 125                         if re_search(ipPattern, split[0]):
 126                                 foundip = self.convertIP(split[0])
 127                                 if (foundip[0] == data['ip'][0] and foundip[1] == data['ip'][1]):
 128                                         if re_search(ipPattern, split[4]):
 129                                                 mask = self.regExpMatch(ipPattern, self.regExpMatch(ipLinePattern, split[4]))
 130                                                 if mask is not None:
 131                                                         data['netmask'] = self.convertIP(mask)
 132                 self.ifaces[iface] = data
 133                 self.loadNetworkConfig(iface,callback)
 134
 135         def writeNetworkConfig(self):
 136                 self.configuredInterfaces = []
 137                 fp = file('/etc/network/interfaces', 'w')
 138                 fp.write("# automatically generated by enigma 2\n# do NOT change manually!\n\n")
 139                 fp.write("auto lo\n")
 140                 fp.write("iface lo inet loopback\n\n")
 141                 for ifacename, iface in self.ifaces.items():
 142                         if iface['up'] == True:
 143                                 fp.write("auto " + ifacename + "\n")
 144                                 self.configuredInterfaces.append(ifacename)
 145                         if iface['dhcp'] == True:
 146                                 fp.write("iface "+ ifacename +" inet dhcp\n")
 147                         if iface['dhcp'] == False:
 148                                 fp.write("iface "+ ifacename +" inet static\n")
 149                                 if iface.has_key('ip'):
 150                                         print tuple(iface['ip'])
 151                                         fp.write("      address %d.%d.%d.%d\n" % tuple(iface['ip']))
 152                                         fp.write("      netmask %d.%d.%d.%d\n" % tuple(iface['netmask']))
 153                                         if iface.has_key('gateway'):
 154                                                 fp.write("      gateway %d.%d.%d.%d\n" % tuple(iface['gateway']))
 155                         if iface.has_key("configStrings"):
 156                                 fp.write("\n" + iface["configStrings"] + "\n")
 157                         if iface["preup"] is not False and not iface.has_key("configStrings"):
 158                                 fp.write(iface["preup"])
 159                                 fp.write(iface["postdown"])
 160                         fp.write("\n")
 161                 fp.close()
 162                 self.writeNameserverConfig()
 163
 164         def writeNameserverConfig(self):
 165                 fp = file('/etc/resolv.conf', 'w')
 166                 for nameserver in self.nameservers:
 167                         fp.write("nameserver %d.%d.%d.%d\n" % tuple(nameserver))
 168                 fp.close()
 169
 170         def loadNetworkConfig(self,iface,callback = None):
 171                 interfaces = []
 172                 # parse the interfaces-file
 173                 try:
 174                         fp = file('/etc/network/interfaces', 'r')
 175                         interfaces = fp.readlines()
 176                         fp.close()
 177                 except:
 178                         print "[Network.py] interfaces - opening failed"
 179
 180                 ifaces = {}
 181                 currif = ""
 182                 for i in interfaces:
 183                         split = i.strip().split(' ')
 184                         if (split[0] == "iface"):
 185                                 currif = split[1]
 186                                 ifaces[currif] = {}
 187                                 if (len(split) == 4 and split[3] == "dhcp"):
 188                                         ifaces[currif]["dhcp"] = True
 189                                 else:
 190                                         ifaces[currif]["dhcp"] = False
 191                         if (currif == iface): #read information only for available interfaces
 192                                 if (split[0] == "address"):
 193                                         ifaces[currif]["address"] = map(int, split[1].split('.'))
 194                                         if self.ifaces[currif].has_key("ip"):
 195                                                 if self.ifaces[currif]["ip"] != ifaces[currif]["address"] and ifaces[currif]["dhcp"] == False:
 196                                                         self.ifaces[currif]["ip"] = map(int, split[1].split('.'))
 197                                 if (split[0] == "netmask"):
 198                                         ifaces[currif]["netmask"] = map(int, split[1].split('.'))
 199                                         if self.ifaces[currif].has_key("netmask"):
 200                                                 if self.ifaces[currif]["netmask"] != ifaces[currif]["netmask"] and ifaces[currif]["dhcp"] == False:
 201                                                         self.ifaces[currif]["netmask"] = map(int, split[1].split('.'))
 202                                 if (split[0] == "gateway"):
 203                                         ifaces[currif]["gateway"] = map(int, split[1].split('.'))
 204                                         if self.ifaces[currif].has_key("gateway"):
 205                                                 if self.ifaces[currif]["gateway"] != ifaces[currif]["gateway"] and ifaces[currif]["dhcp"] == False:
 206                                                         self.ifaces[currif]["gateway"] = map(int, split[1].split('.'))
 207                                 if (split[0] == "pre-up"):
 208                                         if self.ifaces[currif].has_key("preup"):
 209                                                 self.ifaces[currif]["preup"] = i
 210                                 if (split[0] == "post-down"):
 211                                         if self.ifaces[currif].has_key("postdown"):
 212                                                 self.ifaces[currif]["postdown"] = i
 213
 214                 for ifacename, iface in ifaces.items():
 215                         if self.ifaces.has_key(ifacename):
 216                                 self.ifaces[ifacename]["dhcp"] = iface["dhcp"]
 217                 if len(self.Console.appContainers) == 0:
 218                         # load ns only once
 219                         self.loadNameserverConfig()
 220                         print "read configured interfac:", ifaces
 221                         print "self.ifaces after loading:", self.ifaces
 222                         if callback is not None:
 223                                 callback(True)
 224
 225         def loadNameserverConfig(self):
 226                 ipRegexp = "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}"
 227                 nameserverPattern = re_compile("nameserver +" + ipRegexp)
 228                 ipPattern = re_compile(ipRegexp)
 229
 230                 resolv = []
 231                 try:
 232                         fp = file('/etc/resolv.conf', 'r')
 233                         resolv = fp.readlines()
 234                         fp.close()
 235                         self.nameservers = []
 236                 except:
 237                         print "[Network.py] resolv.conf - opening failed"
 238
 239                 for line in resolv:
 240                         if self.regExpMatch(nameserverPattern, line) is not None:
 241                                 ip = self.regExpMatch(ipPattern, line)
 242                                 if ip is not None:
 243                                         self.nameservers.append(self.convertIP(ip))
 244
 245                 print "nameservers:", self.nameservers
 246
 247         def deactivateNetworkConfig(self):
 248                 for iface in self.ifaces.keys():
 249                         system("ip addr flush " + iface)
 250                 system("/etc/init.d/networking stop")
 251                 system("killall -9 udhcpc")
 252                 system("rm /var/run/udhcpc*")
 253
 254         def activateNetworkConfig(self):
 255                 system("/etc/init.d/networking start")
 256                 self.getInterfaces()
 257
 258         def getNumberOfAdapters(self):
 259                 return len(self.ifaces)
 260
 261         def getFriendlyAdapterName(self, x):
 262                 # maybe this needs to be replaced by an external list.
 263                 friendlyNames = {
 264                         "eth0": _("Integrated Ethernet"),
 265                         "wlan0": _("Wireless"),
 266                         "ath0": _("Integrated Wireless")
 267                 }
 268                 return friendlyNames.get(x, x) # when we have no friendly name, use adapter name
 269
 270         def getAdapterName(self, iface):
 271                 return iface
 272
 273         def getAdapterList(self):
 274                 return self.ifaces.keys()
 275
 276         def getAdapterAttribute(self, iface, attribute):
 277                 if self.ifaces.has_key(iface):
 278                         if self.ifaces[iface].has_key(attribute):
 279                                 return self.ifaces[iface][attribute]
 280                 return None
 281
 282         def setAdapterAttribute(self, iface, attribute, value):
 283                 print "setting for adapter", iface, "attribute", attribute, " to value", value
 284                 if self.ifaces.has_key(iface):
 285                         self.ifaces[iface][attribute] = value
 286
 287         def removeAdapterAttribute(self, iface, attribute):
 288                 if self.ifaces.has_key(iface):
 289                         if self.ifaces[iface].has_key(attribute):
 290                                 del self.ifaces[iface][attribute]
 291
 292         def getNameserverList(self):
 293                 if len(self.nameservers) == 0:
 294                         return [[0, 0, 0, 0], [0, 0, 0, 0]]
 295                 else:
 296                         return self.nameservers
 297
 298         def clearNameservers(self):
 299                 self.nameservers = []
 300
 301         def addNameserver(self, nameserver):
 302                 if nameserver not in self.nameservers:
 303                         self.nameservers.append(nameserver)
 304
 305         def removeNameserver(self, nameserver):
 306                 if nameserver in self.nameservers:
 307                         self.nameservers.remove(nameserver)
 308
 309         def changeNameserver(self, oldnameserver, newnameserver):
 310                 if oldnameserver in self.nameservers:
 311                         for i in range(len(self.nameservers)):
 312                                 if self.nameservers[i] == oldnameserver:
 313                                         self.nameservers[i] = newnameserver
 314
 315         def writeDefaultNetworkConfig(self,mode='lan'):
 316                 fp = file('/etc/network/interfaces', 'w')
 317                 fp.write("# automatically generated by enigma 2\n# do NOT change manually!\n\n")
 318                 fp.write("auto lo\n")
 319                 fp.write("iface lo inet loopback\n\n")
 320                 if mode == 'wlan':
 321                         fp.write("auto wlan0\n")
 322                         fp.write("iface wlan0 inet dhcp\n")
 323                 if mode == 'wlan-mpci':
 324                         fp.write("auto ath0\n")
 325                         fp.write("iface ath0 inet dhcp\n")
 326                 if mode == 'lan':
 327                         fp.write("auto eth0\n")
 328                         fp.write("iface eth0 inet dhcp\n")
 329                 fp.write("\n")
 330                 fp.close()
 331
 332         def resetNetworkConfig(self,mode='lan'):
 333                 self.deactivateNetworkConfig()
 334                 self.writeDefaultNetworkConfig(mode)
 335                 if mode == 'wlan':
 336                         system("ifconfig eth0 down")
 337                         system("ifconfig ath0 down")
 338                         system("ifconfig wlan0 up")
 339                 if mode == 'wlan-mpci':
 340                         system("ifconfig eth0 down")
 341                         system("ifconfig wlan0 down")
 342                         system("ifconfig ath0 up")
 343                 if mode == 'lan':
 344                         system("ifconfig eth0 up")
 345                         system("ifconfig wlan0 down")
 346                         system("ifconfig ath0 down")
 347                 self.getInterfaces()
 348
 349         def checkNetworkState(self):
 350                  # www.dream-multimedia-tv.de, www.heise.de, www.google.de
 351                 return system("ping -c 1 82.149.226.170") == 0 or \
 352                         system("ping -c 1 193.99.144.85") == 0 or \
 353                         system("ping -c 1 209.85.135.103") == 0
 354
 355         def restartNetwork(self):
 356                 iNetwork.deactivateNetworkConfig()
 357                 iNetwork.activateNetworkConfig()
 358
 359         def getLinkState(self,iface,callback):
 360                 self.dataAvail = callback
 361                 cmd = self.ethtool_bin + " " + iface
 362                 self.container.appClosed.append(self.cmdFinished)
 363                 self.container.dataAvail.append(callback)
 364                 self.container.execute(cmd)
 365
 366         def cmdFinished(self,retval):
 367                 self.container.appClosed.remove(self.cmdFinished)
 368                 self.container.dataAvail.remove(self.dataAvail)
 369
 370         def stopContainer(self):
 371                 self.container.kill()
 372
 373         def ContainerRunning(self):
 374                 return self.container.running()
 375
 376         def checkforInterface(self,iface):
 377                 if self.getAdapterAttribute(iface, 'up') is True:
 378                         return True
 379                 else:
 380                         ret=system("ifconfig " + iface + " up")
 381                         system("ifconfig " + iface + " down")
 382                         if ret == 0:
 383                                 return True
 384                         else:
 385                                 return False
 386
 387         def checkDNSLookup(self):
 388                 return system("nslookup www.dream-multimedia-tv.de") == 0 or \
 389                         system("nslookup www.heise.de") == 0 or \
 390                         system("nslookup www.google.de")
 391
 392         def deactivateInterface(self,iface):
 393                 system("ifconfig " + iface + " down")
 394
 395         def detectWlanModule(self):
 396                 self.wlanmodule = None
 397                 rt73_dir = "/sys/bus/usb/drivers/rt73/"
 398                 zd1211b_dir = "/sys/bus/usb/drivers/zd1211b/"
 399                 madwifi_dir = "/sys/bus/pci/drivers/ath_pci/"
 400                 if os_path.exists(madwifi_dir):
 401                         files = listdir(madwifi_dir)
 402                         if len(files) >= 1:
 403                                 self.wlanmodule = 'madwifi'
 404                 if os_path.exists(rt73_dir):
 405                         rtfiles = listdir(rt73_dir)
 406                         if len(rtfiles) == 2:
 407                                 self.wlanmodule = 'ralink'
 408                 if os_path.exists(zd1211b_dir):
 409                         zdfiles = listdir(zd1211b_dir)
 410                         if len(zdfiles) == 1:
 411                                 self.wlanmodule = 'zydas'
 412                 return self.wlanmodule
 413
 414
 415 iNetwork = Network()
 416
 417 def InitNetwork():
 418         pass