lib/python/Components/Network.py

   1 from os import system, popen, path as os_path, listdir
   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                                 if device == 'wifi0':
  25                                         continue
  26                                 self.ifaces[device] = self.getDataForInterface(device)
  27                                 # Show only UP Interfaces in E2
  28                                 #if self.getAdapterAttribute(device, 'up') is False:
  29                                 #       del self.ifaces[device]
  30                         except AttributeError:
  31                                 pass
  32
  33                 print "self.ifaces:", self.ifaces
  34                 self.loadNetworkConfig()
  35                 #self.writeNetworkConfig()
  36                 #print ord(' ')
  37                 #for line in result:
  38                 #       print ord(line[0])
  39
  40         # helper function
  41         def regExpMatch(self, pattern, string):
  42                 if string is None:
  43                         return None
  44                 try:
  45                         return pattern.search(string).group()
  46                 except AttributeError:
  47                         None
  48
  49         # helper function to convert ips from a sring to a list of ints
  50         def convertIP(self, ip):
  51                 strIP = ip.split('.')
  52                 ip = []
  53                 for x in strIP:
  54                         ip.append(int(x))
  55                 return ip
  56
  57         def getDataForInterface(self, iface):
  58                 #ipRegexp = '[0-9]{1,2,3}\.[0-9]{1,2,3}\.[0-9]{1,2,3}\.[0-9]{1,2,3}'
  59                 ipRegexp = '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'
  60                 ipLinePattern = re_compile('inet addr:' + ipRegexp)
  61                 netmaskLinePattern = re_compile('Mask:' + ipRegexp)
  62                 bcastLinePattern = re_compile('Bcast:' + ipRegexp)
  63                 ipPattern = re_compile(ipRegexp)
  64                 upPattern = re_compile('UP ')
  65                 macPattern = re_compile('[0-9]{2}\:[0-9]{2}\:[0-9]{2}\:[0-9]{2}\:[0-9]{2}\:[0-9]{2}')
  66
  67                 fp = popen("ifconfig " + iface)
  68                 result = fp.readlines()
  69                 fp.close()
  70                 data = { 'up': False, 'dhcp': False }
  71                 for line in result:
  72                         ip = self.regExpMatch(ipPattern, self.regExpMatch(ipLinePattern, line))
  73                         netmask = self.regExpMatch(ipPattern, self.regExpMatch(netmaskLinePattern, line))
  74                         bcast = self.regExpMatch(ipPattern, self.regExpMatch(bcastLinePattern, line))
  75                         up = self.regExpMatch(upPattern, line)
  76                         mac = self.regExpMatch(macPattern, line)
  77                         if ip is not None:
  78                                 data['ip'] = self.convertIP(ip)
  79                         if netmask is not None:
  80                                 data['netmask'] = self.convertIP(netmask)
  81                         if bcast is not None:
  82                                 data['bcast'] = self.convertIP(bcast)
  83                         if up is not None:
  84                                 data['up'] = True
  85                         if mac is not None:
  86                                 data['mac'] = mac
  87                 if not data.has_key('ip'):
  88                         data['dhcp'] = True
  89                         data['ip'] = [192, 168, 1, 2]
  90                         data['netmask'] = [255, 255, 255, 0]
  91                         data['gateway'] = [192, 168, 1, 1]
  92
  93                 fp = popen("route -n | grep  " + iface)
  94                 result = fp.readlines()
  95                 fp.close()
  96                 for line in result:
  97                         print line[0:7]
  98                         if line[0:7] == "0.0.0.0":
  99                                 gateway = self.regExpMatch(ipPattern, line[16:31])
 100                                 if gateway is not None:
 101                                         data['gateway'] = self.convertIP(gateway)
 102                 return data
 103
 104         def writeNetworkConfig(self):
 105                 fp = file('/etc/network/interfaces', 'w')
 106                 fp.write("# automatically generated by enigma 2\n# do NOT change manually!\n\n")
 107                 fp.write("auto lo\n")
 108                 fp.write("iface lo inet loopback\n\n")
 109                 for ifacename, iface in self.ifaces.items():
 110                         if iface['up'] == True:
 111                                 fp.write("auto " + ifacename + "\n")
 112                         if iface['dhcp'] == True:
 113                                 fp.write("iface "+ ifacename +" inet dhcp\n")
 114                         if iface['dhcp'] == False:
 115                                 fp.write("iface "+ ifacename +" inet static\n")
 116                                 if iface.has_key('ip'):
 117                                         print tuple(iface['ip'])
 118                                         fp.write("      address %d.%d.%d.%d\n" % tuple(iface['ip']))
 119                                         fp.write("      netmask %d.%d.%d.%d\n" % tuple(iface['netmask']))
 120                                         if iface.has_key('gateway'):
 121                                                 fp.write("      gateway %d.%d.%d.%d\n" % tuple(iface['gateway']))
 122                         if iface.has_key("configStrings"):
 123                                 fp.write("\n" + iface["configStrings"] + "\n")
 124                         fp.write("\n")
 125                 fp.close()
 126                 self.writeNameserverConfig()
 127
 128         def writeNameserverConfig(self):
 129                 fp = file('/etc/resolv.conf', 'w')
 130                 for nameserver in self.nameservers:
 131                         fp.write("nameserver %d.%d.%d.%d\n" % tuple(nameserver))
 132                 fp.close()
 133
 134         def loadNetworkConfig(self):
 135                 self.loadNameserverConfig()
 136                 interfaces = []
 137                 # parse the interfaces-file
 138                 try:
 139                         fp = file('/etc/network/interfaces', 'r')
 140                         interfaces = fp.readlines()
 141                         fp.close()
 142                 except:
 143                         print "[Network.py] interfaces - opening failed"
 144
 145                 ifaces = {}
 146                 currif = ""
 147                 for i in interfaces:
 148                         split = i.strip().split(' ')
 149                         if (split[0] == "iface"):
 150                                 currif = split[1]
 151                                 ifaces[currif] = {}
 152                                 if (len(split) == 4 and split[3] == "dhcp"):
 153                                         ifaces[currif]["dhcp"] = True
 154                                 else:
 155                                         ifaces[currif]["dhcp"] = False
 156                         if (currif != ""):
 157                                 if (split[0] == "address"):
 158                                         ifaces[currif]["address"] = map(int, split[1].split('.'))
 159                                 if (split[0] == "netmask"):
 160                                         ifaces[currif]["netmask"] = map(int, split[1].split('.'))
 161                                 if (split[0] == "gateway"):
 162                                         ifaces[currif]["gateway"] = map(int, split[1].split('.'))
 163
 164                 self.configuredInterfaces = ifaces
 165                 print "read interfaces:", ifaces
 166                 for ifacename, iface in ifaces.items():
 167                         if self.ifaces.has_key(ifacename):
 168                                 self.ifaces[ifacename]["dhcp"] = iface["dhcp"]
 169
 170                 print "self.ifaces after loading:", self.ifaces
 171
 172         def loadNameserverConfig(self):
 173                 ipRegexp = "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}"
 174                 nameserverPattern = re_compile("nameserver +" + ipRegexp)
 175                 ipPattern = re_compile(ipRegexp)
 176
 177                 resolv = []
 178                 try:
 179                         fp = file('/etc/resolv.conf', 'r')
 180                         resolv = fp.readlines()
 181                         fp.close()
 182                         self.nameservers = []
 183                 except:
 184                         print "[Network.py] resolv.conf - opening failed"
 185
 186                 for line in resolv:
 187                         if self.regExpMatch(nameserverPattern, line) is not None:
 188                                 ip = self.regExpMatch(ipPattern, line)
 189                                 if ip is not None:
 190                                         self.nameservers.append(self.convertIP(ip))
 191
 192                 print "nameservers:", self.nameservers
 193
 194         def deactivateNetworkConfig(self):
 195                 for iface in self.ifaces.keys():
 196                         system("ip addr flush " + iface)
 197                 system("/etc/init.d/networking stop")
 198                 system("killall -9 udhcpc")
 199                 system("rm /var/run/udhcpc*")
 200
 201         def activateNetworkConfig(self):
 202                 system("/etc/init.d/networking start")
 203                 self.getInterfaces()
 204
 205         def getNumberOfAdapters(self):
 206                 return len(self.ifaces)
 207
 208         def getFriendlyAdapterName(self, x):
 209                 # maybe this needs to be replaced by an external list.
 210                 friendlyNames = {
 211                         "eth0": _("Integrated Ethernet"),
 212                         "wlan0": _("Wireless"),
 213                         "ath0": _("Integrated Wireless")
 214                 }
 215                 return friendlyNames.get(x, x) # when we have no friendly name, use adapter name
 216
 217         def getAdapterName(self, iface):
 218                 return iface
 219
 220         def getAdapterList(self):
 221                 return self.ifaces.keys()
 222
 223         def getAdapterAttribute(self, iface, attribute):
 224                 if self.ifaces.has_key(iface):
 225                         if self.ifaces[iface].has_key(attribute):
 226                                 return self.ifaces[iface][attribute]
 227                 return None
 228
 229         def setAdapterAttribute(self, iface, attribute, value):
 230                 print "setting for adapter", iface, "attribute", attribute, " to value", value
 231                 if self.ifaces.has_key(iface):
 232                         self.ifaces[iface][attribute] = value
 233
 234         def removeAdapterAttribute(self, iface, attribute):
 235                 if self.ifaces.has_key(iface):
 236                         if self.ifaces[iface].has_key(attribute):
 237                                 del self.ifaces[iface][attribute]
 238
 239         def getNameserverList(self):
 240                 if len(self.nameservers) == 0:
 241                         return [[0, 0, 0, 0], [0, 0, 0, 0]]
 242                 else:
 243                         return self.nameservers
 244
 245         def clearNameservers(self):
 246                 self.nameservers = []
 247
 248         def addNameserver(self, nameserver):
 249                 if nameserver not in self.nameservers:
 250                         self.nameservers.append(nameserver)
 251
 252         def removeNameserver(self, nameserver):
 253                 if nameserver in self.nameservers:
 254                         self.nameservers.remove(nameserver)
 255
 256         def changeNameserver(self, oldnameserver, newnameserver):
 257                 if oldnameserver in self.nameservers:
 258                         for i in range(len(self.nameservers)):
 259                                 if self.nameservers[i] == oldnameserver:
 260                                         self.nameservers[i] = newnameserver
 261
 262         def writeDefaultNetworkConfig(self,mode='lan'):
 263                 fp = file('/etc/network/interfaces', 'w')
 264                 fp.write("# automatically generated by enigma 2\n# do NOT change manually!\n\n")
 265                 fp.write("auto lo\n")
 266                 fp.write("iface lo inet loopback\n\n")
 267                 if mode == 'wlan':
 268                         fp.write("auto wlan0\n")
 269                         fp.write("iface wlan0 inet dhcp\n")
 270                 if mode == 'wlan-mpci':
 271                         fp.write("auto ath0\n")
 272                         fp.write("iface ath0 inet dhcp\n")
 273                 if mode == 'lan':
 274                         fp.write("auto eth0\n")
 275                         fp.write("iface eth0 inet dhcp\n")
 276                 fp.write("\n")
 277                 fp.close()
 278
 279         def resetNetworkConfig(self,mode='lan'):
 280                 self.deactivateNetworkConfig()
 281                 self.writeDefaultNetworkConfig(mode)
 282                 if mode == 'wlan':
 283                         system("ifconfig eth0 down")
 284                         system("ifconfig ath0 down")
 285                         system("ifconfig wlan0 up")
 286                 if mode == 'wlan-mpci':
 287                         system("ifconfig eth0 down")
 288                         system("ifconfig wlan0 down")
 289                         system("ifconfig ath0 up")
 290                 if mode == 'lan':
 291                         system("ifconfig eth0 up")
 292                         system("ifconfig wlan0 down")
 293                         system("ifconfig ath0 down")
 294                 self.getInterfaces()
 295
 296         def checkNetworkState(self):
 297                  # www.dream-multimedia-tv.de, www.heise.de, www.google.de
 298                 return system("ping -c 1 82.149.226.170") == 0 or \
 299                         system("ping -c 1 193.99.144.85") == 0 or \
 300                         system("ping -c 1 209.85.135.103") == 0
 301
 302         def restartNetwork(self):
 303                 iNetwork.deactivateNetworkConfig()
 304                 iNetwork.activateNetworkConfig()
 305
 306         def getLinkState(self,iface,callback):
 307                 self.dataAvail = callback
 308                 cmd = self.ethtool_bin + " " + iface
 309                 self.container.appClosed.get().append(self.cmdFinished)
 310                 self.container.dataAvail.get().append(callback)
 311                 self.container.execute(cmd)
 312
 313         def cmdFinished(self,retval):
 314                 self.container.appClosed.get().remove(self.cmdFinished)
 315                 self.container.dataAvail.get().remove(self.dataAvail)
 316
 317         def checkforInterface(self,iface):
 318                 if self.getAdapterAttribute(iface, 'up') is True:
 319                         return True
 320                 else:
 321                         ret=system("ifconfig " + iface + " up")
 322                         system("ifconfig " + iface + " down")
 323                         if ret == 0:
 324                                 return True
 325                         else:
 326                                 return False
 327
 328         def checkDNSLookup(self):
 329                 return system("nslookup www.dream-multimedia-tv.de") == 0 or \
 330                         system("nslookup www.heise.de") == 0 or \
 331                         system("nslookup www.google.de")
 332
 333         def deactivateInterface(self,iface):
 334                 system("ifconfig " + iface + " down")
 335
 336         def detectWlanModule(self):
 337                 self.wlanmodule = None
 338                 rt73_dir = "/sys/bus/usb/drivers/rt73/"
 339                 zd1211b_dir = "/sys/bus/usb/drivers/zd1211b/"
 340                 madwifi_dir = "/sys/bus/pci/drivers/ath_pci/"
 341                 if os_path.exists(madwifi_dir):
 342                         files = listdir(madwifi_dir)
 343                         if len(files) >= 1:
 344                                 self.wlanmodule = 'madwifi'
 345                 elif os_path.exists(rt73_dir):
 346                         files = listdir(rt73_dir)
 347                         if len(files) >= 1:
 348                                 self.wlanmodule = 'ralink'
 349                 elif os_path.exists(zd1211b_dir):
 350                         files = listdir(zd1211b_dir)
 351                         if len(files) != 0:
 352                                 self.wlanmodule = 'zydas'
 353                 return self.wlanmodule
 354
 355
 356 iNetwork = Network()
 357
 358 def InitNetwork():
 359         pass