lib/python/Components/Network.py

   1 from os import system, popen
   2 from re import compile as re_compile
   3 from socket import *
   4 from enigma import eConsoleAppContainer
   5
   6 class Network:
   7         def __init__(self):
   8                 self.ifaces = {}
   9                 self.configuredInterfaces = {}
  10                 self.nameservers = []
  11                 self.getInterfaces()
  12                 self.ethtool_bin = "/usr/sbin/ethtool"
  13                 self.container = eConsoleAppContainer()
  14
  15         def getInterfaces(self):
  16                 devicesPattern = re_compile('[a-z]+[0-9]+')
  17
  18                 fp = file('/proc/net/dev', 'r')
  19                 result = fp.readlines()
  20                 fp.close()
  21                 for line in result:
  22                         try:
  23                                 device = devicesPattern.search(line).group()
  24                                 self.ifaces[device] = self.getDataForInterface(device)
  25                                 # Show only UP Interfaces in E2
  26                                 #if self.getAdapterAttribute(device, 'up') is False:
  27                                 #       del self.ifaces[device]
  28                         except AttributeError:
  29                                 pass
  30
  31                 print "self.ifaces:", self.ifaces
  32                 self.loadNetworkConfig()
  33                 #self.writeNetworkConfig()
  34                 #print ord(' ')
  35                 #for line in result:
  36                 #       print ord(line[0])
  37
  38         # helper function
  39         def regExpMatch(self, pattern, string):
  40                 if string is None:
  41                         return None
  42                 try:
  43                         return pattern.search(string).group()
  44                 except AttributeError:
  45                         None
  46
  47         # helper function to convert ips from a sring to a list of ints
  48         def convertIP(self, ip):
  49                 strIP = ip.split('.')
  50                 ip = []
  51                 for x in strIP:
  52                         ip.append(int(x))
  53                 return ip
  54
  55         def getDataForInterface(self, iface):
  56                 #ipRegexp = '[0-9]{1,2,3}\.[0-9]{1,2,3}\.[0-9]{1,2,3}\.[0-9]{1,2,3}'
  57                 ipRegexp = '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'
  58                 ipLinePattern = re_compile('inet addr:' + ipRegexp)
  59                 netmaskLinePattern = re_compile('Mask:' + ipRegexp)
  60                 bcastLinePattern = re_compile('Bcast:' + ipRegexp)
  61                 ipPattern = re_compile(ipRegexp)
  62                 upPattern = re_compile('UP ')
  63                 macPattern = re_compile('[0-9]{2}\:[0-9]{2}\:[0-9]{2}\:[0-9]{2}\:[0-9]{2}\:[0-9]{2}')
  64
  65                 fp = popen("ifconfig " + iface)
  66                 result = fp.readlines()
  67                 fp.close()
  68                 data = { 'up': False, 'dhcp': False }
  69                 for line in result:
  70                         ip = self.regExpMatch(ipPattern, self.regExpMatch(ipLinePattern, line))
  71                         netmask = self.regExpMatch(ipPattern, self.regExpMatch(netmaskLinePattern, line))
  72                         bcast = self.regExpMatch(ipPattern, self.regExpMatch(bcastLinePattern, line))
  73                         up = self.regExpMatch(upPattern, line)
  74                         mac = self.regExpMatch(macPattern, line)
  75                         if ip is not None:
  76                                 data['ip'] = self.convertIP(ip)
  77                         if netmask is not None:
  78                                 data['netmask'] = self.convertIP(netmask)
  79                         if bcast is not None:
  80                                 data['bcast'] = self.convertIP(bcast)
  81                         if up is not None:
  82                                 data['up'] = True
  83                         if mac is not None:
  84                                 data['mac'] = mac
  85                 if not data.has_key('ip'):
  86                         data['dhcp'] = True
  87                         data['ip'] = [192, 168, 1, 2]
  88                         data['netmask'] = [255, 255, 255, 0]
  89                         data['gateway'] = [192, 168, 1, 1]
  90
  91                 fp = popen("route -n | grep  " + iface)
  92                 result = fp.readlines()
  93                 fp.close()
  94                 for line in result:
  95                         print line[0:7]
  96                         if line[0:7] == "0.0.0.0":
  97                                 gateway = self.regExpMatch(ipPattern, line[16:31])
  98                                 if gateway is not None:
  99                                         data['gateway'] = self.convertIP(gateway)
 100                 return data
 101
 102         def writeNetworkConfig(self):
 103                 fp = file('/etc/network/interfaces', 'w')
 104                 fp.write("# automatically generated by enigma 2\n# do NOT change manually!\n\n")
 105                 fp.write("auto lo\n")
 106                 fp.write("iface lo inet loopback\n\n")
 107                 for ifacename, iface in self.ifaces.items():
 108                         if iface['up'] == True:
 109                                 fp.write("auto " + ifacename + "\n")
 110                                 if iface['dhcp'] == True:
 111                                         fp.write("iface "+ ifacename +" inet dhcp\n")
 112                                 if iface['dhcp'] == False:
 113                                         fp.write("iface "+ ifacename +" inet static\n")
 114                                         if iface.has_key('ip'):
 115                                                 print tuple(iface['ip'])
 116                                                 fp.write("      address %d.%d.%d.%d\n" % tuple(iface['ip']))
 117                                                 fp.write("      netmask %d.%d.%d.%d\n" % tuple(iface['netmask']))
 118                                                 if iface.has_key('gateway'):
 119                                                         fp.write("      gateway %d.%d.%d.%d\n" % tuple(iface['gateway']))
 120                                 if iface.has_key("configStrings"):
 121                                         fp.write("\n" + iface["configStrings"] + "\n")
 122                                 fp.write("\n")
 123                 fp.close()
 124                 self.writeNameserverConfig()
 125
 126         def writeNameserverConfig(self):
 127                 fp = file('/etc/resolv.conf', 'w')
 128                 for nameserver in self.nameservers:
 129                         fp.write("nameserver %d.%d.%d.%d\n" % tuple(nameserver))
 130                 fp.close()
 131
 132         def loadNetworkConfig(self):
 133                 self.loadNameserverConfig()
 134                 interfaces = []
 135                 # parse the interfaces-file
 136                 try:
 137                         fp = file('/etc/network/interfaces', 'r')
 138                         interfaces = fp.readlines()
 139                         fp.close()
 140                 except:
 141                         print "[Network.py] interfaces - opening failed"
 142
 143                 ifaces = {}
 144                 currif = ""
 145                 for i in interfaces:
 146                         split = i.strip().split(' ')
 147                         if (split[0] == "iface"):
 148                                 currif = split[1]
 149                                 ifaces[currif] = {}
 150                                 if (len(split) == 4 and split[3] == "dhcp"):
 151                                         ifaces[currif]["dhcp"] = True
 152                                 else:
 153                                         ifaces[currif]["dhcp"] = False
 154                         if (currif != ""):
 155                                 if (split[0] == "address"):
 156                                         ifaces[currif]["address"] = map(int, split[1].split('.'))
 157                                 if (split[0] == "netmask"):
 158                                         ifaces[currif]["netmask"] = map(int, split[1].split('.'))
 159                                 if (split[0] == "gateway"):
 160                                         ifaces[currif]["gateway"] = map(int, split[1].split('.'))
 161
 162                 self.configuredInterfaces = ifaces
 163                 print "read interfaces:", ifaces
 164                 for ifacename, iface in ifaces.items():
 165                         if self.ifaces.has_key(ifacename):
 166                                 self.ifaces[ifacename]["dhcp"] = iface["dhcp"]
 167
 168                 print "self.ifaces after loading:", self.ifaces
 169
 170         def loadNameserverConfig(self):
 171                 ipRegexp = "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}"
 172                 nameserverPattern = re_compile("nameserver +" + ipRegexp)
 173                 ipPattern = re_compile(ipRegexp)
 174
 175                 resolv = []
 176                 try:
 177                         fp = file('/etc/resolv.conf', 'r')
 178                         resolv = fp.readlines()
 179                         fp.close()
 180                         self.nameservers = []
 181                 except:
 182                         print "[Network.py] resolv.conf - opening failed"
 183
 184                 for line in resolv:
 185                         if self.regExpMatch(nameserverPattern, line) is not None:
 186                                 ip = self.regExpMatch(ipPattern, line)
 187                                 if ip is not None:
 188                                         self.nameservers.append(self.convertIP(ip))
 189
 190                 print "nameservers:", self.nameservers
 191
 192         def deactivateNetworkConfig(self):
 193                 for iface in self.ifaces.keys():
 194                         system("ip addr flush " + iface)
 195                 system("/etc/init.d/networking stop")
 196                 system("killall -9 udhcpc")
 197                 system("rm /var/run/udhcpc*")
 198
 199         def activateNetworkConfig(self):
 200                 system("/etc/init.d/networking start")
 201                 self.getInterfaces()
 202
 203         def getNumberOfAdapters(self):
 204                 return len(self.ifaces)
 205
 206         def getFriendlyAdapterName(self, x):
 207                 # maybe this needs to be replaced by an external list.
 208                 friendlyNames = {
 209                         "eth0": _("Integrated Ethernet"),
 210                         "wlan0": _("Wireless"),
 211                         "ath0": _("Integrated Wireless")
 212                 }
 213                 return friendlyNames.get(x, x) # when we have no friendly name, use adapter name
 214
 215         def getAdapterName(self, iface):
 216                 return iface
 217
 218         def getAdapterList(self):
 219                 return self.ifaces.keys()
 220
 221         def getAdapterAttribute(self, iface, attribute):
 222                 if self.ifaces.has_key(iface):
 223                         if self.ifaces[iface].has_key(attribute):
 224                                 return self.ifaces[iface][attribute]
 225                 return None
 226
 227         def setAdapterAttribute(self, iface, attribute, value):
 228                 print "setting for adapter", iface, "attribute", attribute, " to value", value
 229                 if self.ifaces.has_key(iface):
 230                         self.ifaces[iface][attribute] = value
 231
 232         def removeAdapterAttribute(self, iface, attribute):
 233                 if self.ifaces.has_key(iface):
 234                         if self.ifaces[iface].has_key(attribute):
 235                                 del self.ifaces[iface][attribute]
 236
 237         def getNameserverList(self):
 238                 if len(self.nameservers) == 0:
 239                         return [[0, 0, 0, 0], [0, 0, 0, 0]]
 240                 else:
 241                         return self.nameservers
 242
 243         def clearNameservers(self):
 244                 self.nameservers = []
 245
 246         def addNameserver(self, nameserver):
 247                 if nameserver not in self.nameservers:
 248                         self.nameservers.append(nameserver)
 249
 250         def removeNameserver(self, nameserver):
 251                 if nameserver in self.nameservers:
 252                         self.nameservers.remove(nameserver)
 253
 254         def changeNameserver(self, oldnameserver, newnameserver):
 255                 if oldnameserver in self.nameservers:
 256                         for i in range(len(self.nameservers)):
 257                                 if self.nameservers[i] == oldnameserver:
 258                                         self.nameservers[i] = newnameserver
 259
 260         def writeDefaultNetworkConfig(self,mode='lan'):
 261                 fp = file('/etc/network/interfaces', 'w')
 262                 fp.write("# automatically generated by enigma 2\n# do NOT change manually!\n\n")
 263                 fp.write("auto lo\n")
 264                 fp.write("iface lo inet loopback\n\n")
 265                 if mode == 'wlan':
 266                         fp.write("auto wlan0\n")
 267                         fp.write("iface wlan0 inet dhcp\n")
 268                 if mode == 'wlan-mpci':
 269                         fp.write("auto ath0\n")
 270                         fp.write("iface eth0 inet dhcp\n")
 271                 if mode == 'lan':
 272                         fp.write("auto eth0\n")
 273                         fp.write("iface eth0 inet dhcp\n")
 274                 fp.write("\n")
 275                 fp.close()
 276
 277         def resetNetworkConfig(self,mode='lan'):
 278                 self.deactivateNetworkConfig()
 279                 self.writeDefaultNetworkConfig(mode)
 280                 if mode == 'wlan':
 281                         system("ifconfig eth0 down")
 282                         system("ifconfig ath0 down")
 283                         system("ifconfig wlan0 up")
 284                 if mode == 'wlan-mpci':
 285                         system("ifconfig eth0 down")
 286                         system("ifconfig wlan0 down")
 287                         system("ifconfig ath0 up")
 288                 if mode == 'lan':
 289                         system("ifconfig eth0 up")
 290                         system("ifconfig wlan0 down")
 291                         system("ifconfig ath0 down")
 292                 self.getInterfaces()
 293
 294         def checkNetworkState(self):
 295                 ok_counter = 0
 296                 ret1=system("ping -c 1 www.dream-multimedia-tv.de")
 297                 if ret1 != 0:
 298                         ok_counter = ok_counter + 1
 299                 ret2=system("ping -c 1 www.heise.de")
 300                 if ret2 != 0:
 301                         ok_counter = ok_counter + 1
 302                 ret3=system("ping -c 1 www.google.de")
 303                 if ret2 != 0:
 304                         ok_counter = ok_counter + 1
 305                 if ok_counter <= 2:
 306                         return True
 307                 else:
 308                         return False
 309
 310         def restartNetwork(self):
 311                 iNetwork.deactivateNetworkConfig()
 312                 iNetwork.activateNetworkConfig()
 313
 314         def getLinkState(self,iface,callback):
 315                 self.dataAvail = callback
 316                 cmd = self.ethtool_bin + " " + iface
 317                 self.container.appClosed.get().append(self.cmdFinished)
 318                 self.container.dataAvail.get().append(callback)
 319                 self.container.execute(cmd)
 320
 321         def cmdFinished(self,retval):
 322                 self.container.appClosed.get().remove(self.cmdFinished)
 323                 self.container.dataAvail.get().remove(self.dataAvail)
 324
 325         def checkforInterface(self,iface):
 326                 if self.getAdapterAttribute(iface, 'up') is True:
 327                         return True
 328                 else:
 329                         ret=system("ifconfig " + iface + " up")
 330                         system("ifconfig " + iface + " down")
 331                         if ret == 0:
 332                                 return True
 333                         else:
 334                                 return False
 335
 336         def checkDNSLookup(self):
 337                 ok_counter = 0
 338                 ret1=system("nslookup www.dream-multimedia-tv.de")
 339                 if ret1 != 0:
 340                         ok_counter = ok_counter + 1
 341                 ret2=system("nslookup www.heise.de")
 342                 if ret2 != 0:
 343                         ok_counter = ok_counter + 1
 344                 ret3=system("nslookup www.google.de")
 345                 if ret2 != 0:
 346                         ok_counter = ok_counter + 1
 347                 if ok_counter <= 2:
 348                         return True
 349                 else:
 350                         return False
 351
 352         def deactivateInterface(self,iface):
 353                 system("ifconfig " + iface + " down")
 354
 355         def detectWlanModule(self):
 356                 self.wlanmodule = None
 357                 rt73_dir = "/sys/bus/usb/drivers/rt73/"
 358                 zd1211b_dir = "/sys/bus/usb/drivers/zd1211b/"
 359                 if os_path.exists(rt73_dir):
 360                         files = []
 361                         files = listdir(rt73_dir)
 362                         if len(files) >= 1:
 363                                 self.wlanmodule = 'ralink'
 364                 if os_path.exists(zd1211b_dir):
 365                         files = []
 366                         files = listdir(zd1211b_dir)
 367                         if len(files) != 0:
 368                                 self.wlanmodule = 'zydas'
 369                 return self.wlanmodule
 370
 371
 372 iNetwork = Network()
 373
 374 def InitNetwork():
 375         pass