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
  82         def setDHCP(self, useDHCP):
  83                 if (useDHCP):
  84                         print "Using DHCP"
  85                         config.network.ip.enabled = False
  86                         config.network.netmask.enabled = False
  87                         config.network.gateway.enabled = False
  88                         config.network.dns.enabled = False
  89                 else:
  90                         print "NOT using DHCP"
  91                         config.network.ip.enabled = True
  92                         config.network.netmask.enabled = True
  93                         config.network.gateway.enabled = True
  94                         config.network.dns.enabled = True
  95
  96         def setIPNameserver(self, ip):
  97                 return
  98                 resolvconf = file('/etc/resolv.conf', 'w')
  99                 resolvconf.write("nameserver %d.%d.%d.%d" % tuple(ip))
 100                 resolvconf.close()
 101
 102         def setMACAddress(self, mac):
 103                 #os.system("echo ifconfig eth0 ether %02x:%02x:%02x:%02x:%02x:%02x" % tuple(mac))
 104                 pass
 105
 106         def setIPAddress(self, ip):
 107                 pass
 108                 #os.system("echo ifconfig eth0 %d.%d.%d.%d" % tuple(ip))
 109                 #self.writeNetworkConfig()
 110
 111         def setGateway(self, ip):
 112                 pass
 113                 #os.system("echo route add default gw %d.%d.%d.%d" % tuple(ip))
 114                 #self.writeNetworkConfig()
 115
 116         def setNetmask(self, ip):
 117                 pass
 118                 #os.system("echo ifconfig eth0 netmask %d.%d.%d.%d" % tuple(ip))
 119                 #self.writeNetworkConfig()
 120
 121
 122 iNetwork = Network()
 123
 124 def InitNetwork():
 125         try:
 126                 ip = [0, 0, 0, 0]
 127                 print gethostbyname(gethostname())
 128                 ip = gethostbyname(gethostname()).split('.')
 129                 print ip
 130         except:
 131                 print "[Network.py] Could not get current ip (not necessarily an error)"
 132
 133         config.network = ConfigSubsection()
 134         config.network.dhcp = configElement_nonSave("config.network.dhcp", configSelection, 1, ("no", "yes"))
 135         config.network.ip = configElement_nonSave("config.network.ip", configSequence, ip, configsequencearg.get("IP"))
 136         config.network.netmask = configElement_nonSave("config.network.netmask", configSequence, [255,255,255,0], configsequencearg.get("IP"))
 137         config.network.gateway = configElement_nonSave("config.network.gateway", configSequence, [192,168,1,3], configsequencearg.get("IP"))
 138         config.network.dns = configElement_nonSave("config.network.dns", configSequence, [192,168,1,3], configsequencearg.get("IP"))
 139         config.network.mac = configElement_nonSave("config.network.mac", configSequence, [00,11,22,33,44,55], configsequencearg.get("MAC"))
 140
 141         iNetwork.loadNetworkConfig()
 142
 143         #FIXME using this till other concept for this is implemented
 144         #config.network.activate = configElement("config.network.activate", configSelection, 0, ("yes, sir", "you are my hero"))
 145         #config.network.activate = configElement("config.network.activate", configSelection, 0, ("yes", "you are my hero"))
 146
 147
 148         def writeNetworkConfig(configElement):
 149                 iNetwork.writeNetworkConfig()
 150
 151         def setIPAddress(configElement):
 152                 iNetwork.setIPAddress(configElement.value)
 153
 154         def setGateway(configElement):
 155                 iNetwork.setGateway(configElement.value)
 156
 157         def setNetmask(configElement):
 158                 iNetwork.setNetmask(configElement.value)
 159
 160         def setDHCP(configElement):
 161                 iNetwork.setDHCP(configElement.value)
 162
 163         def setIPNameserver(configElement):
 164                 iNetwork.setIPNameserver(configElement.value)
 165
 166         def setMACAddress(configElement):
 167                 iNetwork.setMACAddress(configElement.value)
 168
 169
 170         # this will call the "setup-val" initial
 171         config.network.dhcp.addNotifier(setDHCP)
 172         config.network.ip.addNotifier(setIPAddress)
 173         config.network.netmask.addNotifier(setNetmask)
 174         config.network.gateway.addNotifier(setGateway)
 175         config.network.dns.addNotifier(setIPNameserver)
 176         config.network.mac.addNotifier(setMACAddress)