lib/python/Components/Network.py

   1 from config import *
   2
   3 import os
   4 from socket import *
   5
   6 class Network:
   7         def __init__(self):
   8                 pass
   9
  10         def writeNetworkConfig(self):
  11                 # fixme restarting and updating the network too often. possible fix: check current config and execute only if changed :/
  12                 # fixme using interfaces.tmp instead of interfaces for now
  13                 fp = file('/etc/network/interfaces', 'w')
  14                 fp.write("auto eth0\n")
  15                 if (config.network.dhcp.value == _("yes")):
  16                         fp.write("iface eth0 inet dhcp\n")
  17                 else:
  18                         fp.write("iface eth0 inet static\n")
  19                         fp.write("      address %d.%d.%d.%d\n" % tuple(config.network.ip.value))
  20                         fp.write("      netmask %d.%d.%d.%d\n" % tuple(config.network.netmask.value))
  21                         fp.write("      gateway %d.%d.%d.%d\n" % tuple(config.network.gateway.value))
  22                 fp.close()
  23
  24         def loadNetworkConfig(self):
  25                 try:
  26                         # parse the interfaces-file
  27                         fp = file('/etc/network/interfaces', 'r')
  28                         interfaces = fp.readlines()
  29                         fp.close()
  30
  31                         ifaces = {}
  32                         currif = ""
  33                         for i in interfaces:
  34                                 split = i.strip().split(' ')
  35                                 if (split[0] == "iface"):
  36                                         currif = split[1]
  37                                         ifaces[currif] = {}
  38                                         if (len(split) == 4 and split[3] == "dhcp"):
  39                                                 ifaces[currif]["dhcp"] = "yes"
  40                                         else:
  41                                                 ifaces[currif]["dhcp"] = "no"
  42                                 if (currif != ""):
  43                                         if (split[0] == "address"):
  44                                                 ifaces[currif]["address"] = map(int, split[1].split('.'))
  45                                         if (split[0] == "netmask"):
  46                                                 ifaces[currif]["netmask"] = map(int, split[1].split('.'))
  47                                         if (split[0] == "gateway"):
  48                                                 ifaces[currif]["gateway"] = map(int, split[1].split('.'))
  49
  50                         # parse the resolv.conf-file
  51                         fp = file('/etc/network/interfaces', 'r')
  52                         resolv = fp.readlines()
  53                         fp.close()
  54                 except:
  55                         pass
  56
  57                 try:
  58                         for i in resolv:
  59                                 split = i.strip().split(' ')
  60                                 if (split[0] == "nameserver"):
  61                                         config.network.nameserver.value = map(int, split[1].split('.'))
  62                 except:
  63                         pass
  64
  65                 try:
  66                         # set this config
  67                         if (ifaces.has_key("eth0")):
  68                                 if (ifaces["eth0"]["dhcp"] == "yes"):
  69                                         config.network.dhcp.value = 1
  70                                 else:
  71                                         config.network.dhcp.value = 0
  72                                 if (ifaces["eth0"].has_key("address")): config.network.ip.value = ifaces["eth0"]["address"]
  73                                 if (ifaces["eth0"].has_key("netmask")): config.network.netmask.value = ifaces["eth0"]["netmask"]
  74                                 if (ifaces["eth0"].has_key("gateway")): config.network.gateway.value = ifaces["eth0"]["gateway"]
  75                 except:
  76                         pass
  77
  78         def activateNetworkConfig(self):
  79                 import os
  80                 os.system("/etc/init.d/networking restart")
  81                 config.network.ip.value = self.getCurrentIP()
  82
  83         def setDHCP(self, useDHCP):
  84                 if (useDHCP):
  85                         print "Using DHCP"
  86                         config.network.ip.enabled = False
  87                         config.network.netmask.enabled = False
  88                         config.network.gateway.enabled = False
  89                         config.network.dns.enabled = False
  90                 else:
  91                         print "NOT using DHCP"
  92                         config.network.ip.enabled = True
  93                         config.network.netmask.enabled = True
  94                         config.network.gateway.enabled = True
  95                         config.network.dns.enabled = True
  96
  97         def setIPNameserver(self, ip):
  98                 return
  99                 resolvconf = file('/etc/resolv.conf', 'w')
 100                 resolvconf.write("nameserver %d.%d.%d.%d" % tuple(ip))
 101                 resolvconf.close()
 102
 103         def setMACAddress(self, mac):
 104                 #os.system("echo ifconfig eth0 ether %02x:%02x:%02x:%02x:%02x:%02x" % tuple(mac))
 105                 pass
 106
 107         def setIPAddress(self, ip):
 108                 pass
 109                 #os.system("echo ifconfig eth0 %d.%d.%d.%d" % tuple(ip))
 110                 #self.writeNetworkConfig()
 111
 112         def setGateway(self, ip):
 113                 pass
 114                 #os.system("echo route add default gw %d.%d.%d.%d" % tuple(ip))
 115                 #self.writeNetworkConfig()
 116
 117         def setNetmask(self, ip):
 118                 pass
 119                 #os.system("echo ifconfig eth0 netmask %d.%d.%d.%d" % tuple(ip))
 120                 #self.writeNetworkConfig()
 121
 122         def getCurrentIP(self):
 123                 ip = [0, 0, 0, 0]
 124                 try:
 125                         print gethostbyname(gethostname())
 126                         ip = gethostbyname(gethostname()).split('.')
 127                 except:
 128                         print "[Network.py] Could not get current ip (not necessarily an error)"
 129                 print "[Network.py] got ip " + str(ip)
 130                 return ip
 131
 132 iNetwork = Network()
 133
 134 def InitNetwork():
 135         ip = iNetwork.getCurrentIP()
 136
 137
 138         config.network = ConfigSubsection()
 139         config.network.dhcp = configElement_nonSave("config.network.dhcp", configSelection, 1, (_("no"), _("yes")))
 140         config.network.ip = configElement_nonSave("config.network.ip", configSequence, ip, configsequencearg.get("IP"))
 141         config.network.netmask = configElement_nonSave("config.network.netmask", configSequence, [255,255,255,0], configsequencearg.get("IP"))
 142         config.network.gateway = configElement_nonSave("config.network.gateway", configSequence, [192,168,1,3], configsequencearg.get("IP"))
 143         config.network.dns = configElement_nonSave("config.network.dns", configSequence, [192,168,1,3], configsequencearg.get("IP"))
 144         config.network.mac = configElement_nonSave("config.network.mac", configSequence, [00,11,22,33,44,55], configsequencearg.get("MAC"))
 145
 146         iNetwork.loadNetworkConfig()
 147
 148         #FIXME using this till other concept for this is implemented
 149         #config.network.activate = configElement("config.network.activate", configSelection, 0, ("yes, sir", "you are my hero"))
 150         #config.network.activate = configElement("config.network.activate", configSelection, 0, ("yes", "you are my hero"))
 151
 152
 153         def writeNetworkConfig(configElement):
 154                 iNetwork.writeNetworkConfig()
 155
 156         def setIPAddress(configElement):
 157                 iNetwork.setIPAddress(configElement.value)
 158
 159         def setGateway(configElement):
 160                 iNetwork.setGateway(configElement.value)
 161
 162         def setNetmask(configElement):
 163                 iNetwork.setNetmask(configElement.value)
 164
 165         def setDHCP(configElement):
 166                 iNetwork.setDHCP(configElement.value)
 167
 168         def setIPNameserver(configElement):
 169                 iNetwork.setIPNameserver(configElement.value)
 170
 171         def setMACAddress(configElement):
 172                 iNetwork.setMACAddress(configElement.value)
 173
 174
 175         # this will call the "setup-val" initial
 176         config.network.dhcp.addNotifier(setDHCP)
 177         config.network.ip.addNotifier(setIPAddress)
 178         config.network.netmask.addNotifier(setNetmask)
 179         config.network.gateway.addNotifier(setGateway)
 180         config.network.dns.addNotifier(setIPNameserver)
 181         config.network.mac.addNotifier(setMACAddress)