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import os
import re
from socket import *
from enigma import eTimer, eConsoleAppContainer
class Network:
def __init__(self):
self.ifaces = {}
self.configuredInterfaces = {}
self.nameservers = []
self.getInterfaces()
self.ethtool_bin = "/usr/sbin/ethtool"
self.container = eConsoleAppContainer()
def getInterfaces(self):
devicesPattern = re.compile('[a-z]+[0-9]+')
fp = file('/proc/net/dev', 'r')
result = fp.readlines()
fp.close()
for line in result:
try:
device = devicesPattern.search(line).group()
self.ifaces[device] = self.getDataForInterface(device)
# Show only UP Interfaces in E2
if self.getAdapterAttribute(device, 'up') is False:
del self.ifaces[device]
except AttributeError:
pass
print "self.ifaces:", self.ifaces
self.loadNetworkConfig()
#self.writeNetworkConfig()
#print ord(' ')
#for line in result:
# print ord(line[0])
# helper function
def regExpMatch(self, pattern, string):
if string is None:
return None
try:
return pattern.search(string).group()
except AttributeError:
None
# helper function to convert ips from a sring to a list of ints
def convertIP(self, ip):
strIP = ip.split('.')
ip = []
for x in strIP:
ip.append(int(x))
return ip
def getDataForInterface(self, iface):
#ipRegexp = '[0-9]{1,2,3}\.[0-9]{1,2,3}\.[0-9]{1,2,3}\.[0-9]{1,2,3}'
ipRegexp = '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'
ipLinePattern = re.compile('inet addr:' + ipRegexp)
netmaskLinePattern = re.compile('Mask:' + ipRegexp)
bcastLinePattern = re.compile('Bcast:' + ipRegexp)
ipPattern = re.compile(ipRegexp)
upPattern = re.compile('UP ')
macPattern = re.compile('[0-9]{2}\:[0-9]{2}\:[0-9]{2}\:[0-9]{2}\:[0-9]{2}\:[0-9]{2}')
fp = os.popen("ifconfig " + iface)
result = fp.readlines()
fp.close()
data = { 'up': False, 'dhcp': False }
for line in result:
ip = self.regExpMatch(ipPattern, self.regExpMatch(ipLinePattern, line))
netmask = self.regExpMatch(ipPattern, self.regExpMatch(netmaskLinePattern, line))
bcast = self.regExpMatch(ipPattern, self.regExpMatch(bcastLinePattern, line))
up = self.regExpMatch(upPattern, line)
mac = self.regExpMatch(macPattern, line)
if ip is not None:
data['ip'] = self.convertIP(ip)
if netmask is not None:
data['netmask'] = self.convertIP(netmask)
if bcast is not None:
data['bcast'] = self.convertIP(bcast)
if up is not None:
data['up'] = True
if mac is not None:
data['mac'] = mac
if not data.has_key('ip'):
data['dhcp'] = True
data['ip'] = [192, 168, 1, 2]
data['netmask'] = [255, 255, 255, 0]
data['gateway'] = [192, 168, 1, 1]
fp = os.popen("route -n | grep " + iface)
result = fp.readlines()
fp.close()
for line in result:
print line[0:7]
if line[0:7] == "0.0.0.0":
gateway = self.regExpMatch(ipPattern, line[16:31])
if gateway is not None:
data['gateway'] = self.convertIP(gateway)
return data
def writeNetworkConfig(self):
fp = file('/etc/network/interfaces', 'w')
fp.write("# automatically generated by enigma 2\n# do NOT change manually!\n\n")
fp.write("auto lo\n")
fp.write("iface lo inet loopback\n\n")
for ifacename, iface in self.ifaces.items():
if iface['up'] == True:
fp.write("auto " + ifacename + "\n")
if iface['dhcp'] == True:
fp.write("iface "+ ifacename +" inet dhcp\n")
else:
fp.write("iface "+ ifacename +" inet static\n")
if iface.has_key('ip'):
print tuple(iface['ip'])
fp.write(" address %d.%d.%d.%d\n" % tuple(iface['ip']))
fp.write(" netmask %d.%d.%d.%d\n" % tuple(iface['netmask']))
if iface.has_key('gateway'):
fp.write(" gateway %d.%d.%d.%d\n" % tuple(iface['gateway']))
if iface.has_key("configStrings"):
fp.write("\n" + iface["configStrings"] + "\n")
fp.write("\n")
fp.close()
self.writeNameserverConfig()
def writeNameserverConfig(self):
fp = file('/etc/resolv.conf', 'w')
for nameserver in self.nameservers:
fp.write("nameserver %d.%d.%d.%d\n" % tuple(nameserver))
fp.close()
def loadNetworkConfig(self):
self.loadNameserverConfig()
interfaces = []
# parse the interfaces-file
try:
fp = file('/etc/network/interfaces', 'r')
interfaces = fp.readlines()
fp.close()
except:
print "[Network.py] interfaces - opening failed"
ifaces = {}
currif = ""
for i in interfaces:
split = i.strip().split(' ')
if (split[0] == "iface"):
currif = split[1]
ifaces[currif] = {}
if (len(split) == 4 and split[3] == "dhcp"):
ifaces[currif]["dhcp"] = True
else:
ifaces[currif]["dhcp"] = False
if (currif != ""):
if (split[0] == "address"):
ifaces[currif]["address"] = map(int, split[1].split('.'))
if (split[0] == "netmask"):
ifaces[currif]["netmask"] = map(int, split[1].split('.'))
if (split[0] == "gateway"):
ifaces[currif]["gateway"] = map(int, split[1].split('.'))
self.configuredInterfaces = ifaces
print "read interfaces:", ifaces
for ifacename, iface in ifaces.items():
if self.ifaces.has_key(ifacename):
self.ifaces[ifacename]["dhcp"] = iface["dhcp"]
print "self.ifaces after loading:", self.ifaces
def loadNameserverConfig(self):
ipRegexp = "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}"
nameserverPattern = re.compile("nameserver +" + ipRegexp)
ipPattern = re.compile(ipRegexp)
resolv = []
try:
fp = file('/etc/resolv.conf', 'r')
resolv = fp.readlines()
fp.close()
self.nameservers = []
except:
print "[Network.py] resolv.conf - opening failed"
for line in resolv:
if self.regExpMatch(nameserverPattern, line) is not None:
ip = self.regExpMatch(ipPattern, line)
if ip is not None:
self.nameservers.append(self.convertIP(ip))
print "nameservers:", self.nameservers
def deactivateNetworkConfig(self):
for iface in self.ifaces.keys():
os.system("ip addr flush " + iface)
os.system("/etc/init.d/networking stop")
os.system("killall -9 udhcpc")
os.system("rm /var/run/udhcpc*")
def activateNetworkConfig(self):
os.system("/etc/init.d/networking start")
self.getInterfaces()
def getNumberOfAdapters(self):
return len(self.ifaces)
def getFriendlyAdapterName(self, x):
# maybe this needs to be replaced by an external list.
friendlyNames = {
"eth0": _("Integrated Ethernet"),
"wlan0": _("Wireless")
}
return friendlyNames.get(x, x) # when we have no friendly name, use adapter name
def getAdapterName(self, iface):
return iface
def getAdapterList(self):
return self.ifaces.keys()
def getAdapterAttribute(self, iface, attribute):
if self.ifaces.has_key(iface):
if self.ifaces[iface].has_key(attribute):
return self.ifaces[iface][attribute]
return None
def setAdapterAttribute(self, iface, attribute, value):
print "setting for adapter", iface, "attribute", attribute, " to value", value
if self.ifaces.has_key(iface):
self.ifaces[iface][attribute] = value
def removeAdapterAttribute(self, iface, attribute):
if self.ifaces.has_key(iface):
if self.ifaces[iface].has_key(attribute):
del self.ifaces[iface][attribute]
def getNameserverList(self):
if len(self.nameservers) == 0:
return [[0, 0, 0, 0], [0, 0, 0, 0]]
else:
return self.nameservers
def clearNameservers(self):
self.nameservers = []
def addNameserver(self, nameserver):
if nameserver not in self.nameservers:
self.nameservers.append(nameserver)
def removeNameserver(self, nameserver):
if nameserver in self.nameservers:
self.nameservers.remove(nameserver)
def changeNameserver(self, oldnameserver, newnameserver):
if oldnameserver in self.nameservers:
for i in range(len(self.nameservers)):
if self.nameservers[i] == oldnameserver:
self.nameservers[i] = newnameserver
def writeDefaultNetworkConfig(self,mode='lan'):
fp = file('/etc/network/interfaces', 'w')
fp.write("# automatically generated by enigma 2\n# do NOT change manually!\n\n")
fp.write("auto lo\n")
fp.write("iface lo inet loopback\n\n")
if mode == 'wlan':
fp.write("auto wlan0\n")
fp.write("iface wlan0 inet dhcp\n")
else:
fp.write("auto eth0\n")
fp.write("iface eth0 inet dhcp\n")
fp.write("\n")
fp.close()
def resetNetworkConfig(self,mode='lan'):
self.deactivateNetworkConfig()
self.writeDefaultNetworkConfig(mode)
if mode == 'wlan':
os.system("ifconfig eth0 down")
os.system("ifconfig wlan0 up")
else:
os.system("ifconfig eth0 up")
os.system("ifconfig wlan0 down")
def checkNetworkState(self):
ok_counter = 0
ret1=os.system("ping -c 1 www.dream-multimedia-tv.de")
if ret1 != 0:
ok_counter = ok_counter + 1
ret2=os.system("ping -c 1 www.heise.de")
if ret2 != 0:
ok_counter = ok_counter + 1
ret3=os.system("ping -c 1 www.google.de")
if ret2 != 0:
ok_counter = ok_counter + 1
if ok_counter == 0:
return True
else:
return False
def restartNetwork(self):
iNetwork.deactivateNetworkConfig()
iNetwork.activateNetworkConfig()
def getLinkState(self,iface,callback):
self.dataAvail = callback
cmd = self.ethtool_bin + " " + iface
self.container.appClosed.get().append(self.cmdFinished)
self.container.dataAvail.get().append(callback)
self.container.execute(cmd)
def cmdFinished(self,retval):
self.container.appClosed.get().remove(self.cmdFinished)
self.container.dataAvail.get().remove(self.dataAvail)
iNetwork = Network()
def InitNetwork():
pass
|
