src/nepi/resources/ns3/ns3netdevice.py

   1 #
   2 #    NEPI, a framework to manage network experiments
   3 #    Copyright (C) 2014 INRIA
   4 #
   5 #    This program is free software: you can redistribute it and/or modify
   6 #    it under the terms of the GNU General Public License as published by
   7 #    the Free Software Foundation, either version 3 of the License, or
   8 #    (at your option) any later version.
   9 #
  10 #    This program is distributed in the hope that it will be useful,
  11 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 #    GNU General Public License for more details.
  14 #
  15 #    You should have received a copy of the GNU General Public License
  16 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 #
  18 # Author: Alina Quereilhac <alina.quereilhac@inria.fr>
  19
  20 from nepi.execution.attribute import Attribute, Flags
  21 from nepi.execution.resource import clsinit_copy
  22 from nepi.resources.ns3.ns3base import NS3Base
  23
  24 import ipaddr
  25
  26 @clsinit_copy
  27 class NS3BaseNetDevice(NS3Base):
  28     _rtype = "abstract::ns3::NetDevice"
  29
  30     @classmethod
  31     def _register_attributes(cls):
  32         mac = Attribute("mac", "MAC address for device",
  33                 flags = Flags.Design)
  34
  35         ip = Attribute("ip", "IP address for device",
  36                 flags = Flags.Design)
  37
  38         prefix = Attribute("prefix", "Network prefix for device",
  39                 flags = Flags.Design)
  40
  41         cls._register_attribute(mac)
  42         cls._register_attribute(ip)
  43         cls._register_attribute(prefix)
  44
  45     @property
  46     def channel(self):
  47         from nepi.resources.ns3.ns3channel import NS3BaseChannel
  48         channels = self.get_connected(NS3BaseChannel.get_rtype())
  49         if channels: return channels[0]
  50         return None
  51
  52     @property
  53     def others_to_wait(self):
  54         others = set()
  55         node = self.node
  56         if node: others.add(node)
  57
  58         channel = self.channel
  59         if channel: others.add(channel)
  60         return others
  61
  62     def _configure_object(self):
  63         # Set Mac
  64         mac = self.get("mac")
  65         if mac:
  66             mac_uuid = self.simulator.create("Mac48Address", mac)
  67         else:
  68             mac_uuid = self.simulator.invoke("singleton::Mac48Address", "Allocate")
  69         self.simulator.invoke(self.uuid, "SetAddress", mac_uuid)
  70
  71         # Set IP address
  72         ip = self.get("ip")
  73         prefix = self.get("prefix")
  74
  75         i = ipaddr.IPAddress(ip)
  76         if i.version == 4:
  77             # IPv4
  78             ipv4 = self.node.ipv4
  79             ifindex_uuid = self.simulator.invoke(ipv4.uuid, "AddInterface",
  80                     self.uuid)
  81             ipv4_addr_uuid = self.simulator.create("Ipv4Address", ip)
  82             ipv4_mask_uuid = self.simulator.create("Ipv4Mask", "/%s" % str(prefix))
  83             inaddr_uuid = self.simulator.create("Ipv4InterfaceAddress",
  84                     ipv4_addr_uuid, ipv4_mask_uuid)
  85             self.simulator.invoke(ipv4.uuid, "AddAddress", ifindex_uuid,
  86                     inaddr_uuid)
  87             self.simulator.invoke(ipv4.uuid, "SetMetric", ifindex_uuid, 1)
  88             self.simulator.invoke(ipv4.uuid, "SetUp", ifindex_uuid)
  89         else:
  90             # IPv6
  91             # TODO!
  92             pass
  93
  94     def _connect_object(self):
  95         node = self.node
  96         if node and node.uuid not in self.connected:
  97             self.simulator.invoke(node.uuid, "AddDevice", self.uuid)
  98             self._connected.add(node.uuid)
  99
 100         channel = self.channel
 101         if channel and channel.uuid not in self.connected:
 102             self.simulator.invoke(self.uuid, "Attach", channel.uuid)
 103             self._connected.add(channel.uuid)
 104