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.execution.trace import Trace
  23 from nepi.resources.ns3.ns3base import NS3Base
  24
  25 import ipaddr
  26
  27 @clsinit_copy
  28 class NS3BaseNetDevice(NS3Base):
  29     _rtype = "abstract::ns3::NetDevice"
  30
  31     @classmethod
  32     def _register_attributes(cls):
  33         mac = Attribute("mac", "MAC address for device",
  34                 flags = Flags.Design)
  35
  36         ip = Attribute("ip", "IP address for device",
  37                 flags = Flags.Design)
  38
  39         prefix = Attribute("prefix", "Network prefix for device",
  40                 flags = Flags.Design)
  41
  42         cls._register_attribute(mac)
  43         cls._register_attribute(ip)
  44         cls._register_attribute(prefix)
  45
  46     @classmethod
  47     def _register_traces(cls):
  48         pcap = Trace("pcap", "Dump traffic sniffed on the network device in Pcap format")
  49         promisc_pcap = Trace("promiscPcap", "Dump traffic sniffed in promiscuous mode on the network device in Pcap format")
  50         ascii = Trace("ascii", "Dump traffic sniffed on the network device in Ascii format")
  51
  52         cls._register_trace(pcap)
  53         cls._register_trace(promisc_pcap)
  54         cls._register_trace(ascii)
  55
  56     def __init__(self, ec, guid):
  57         super(NS3BaseNetDevice, self).__init__(ec, guid)
  58         self._ascii_helper_uuid = None
  59         self._device_helper_uuid = None
  60
  61     @property
  62     def node(self):
  63         from nepi.resources.ns3.ns3node import NS3BaseNode
  64         nodes = self.get_connected(NS3BaseNode.get_rtype())
  65
  66         if not nodes:
  67             msg = "Device not connected to node"
  68             self.error(msg)
  69             raise RuntimeError, msg
  70
  71         return nodes[0]
  72
  73     @property
  74     def channel(self):
  75         from nepi.resources.ns3.ns3channel import NS3BaseChannel
  76         channels = self.get_connected(NS3BaseChannel.get_rtype())
  77
  78         if not channels:
  79             msg = "Device not connected to channel"
  80             self.error(msg)
  81             raise RuntimeError, msg
  82
  83         return channels[0]
  84
  85     @property
  86     def queue(self):
  87         from nepi.resources.ns3.ns3queue import NS3BaseQueue
  88         queue = self.get_connected(NS3BaseQueue.get_rtype())
  89
  90         if not queue:
  91             msg = "Device not connected to queue"
  92             self.error(msg)
  93             raise RuntimeError, msg
  94
  95         return queue[0]
  96
  97     @property
  98     def ascii_helper_uuid(self):
  99         if not self._ascii_helper_uuid:
 100             self._ascii_helper_uuid = self.simulation.create("AsciiTraceHelper")
 101         return self._ascii_helper_uuid
 102
 103     @property
 104     def device_helper_uuid(self):
 105         if not self._device_helper_uuid:
 106             rtype = self.get_rtype()
 107             if rtype == "ns3::PointToPointNetDevice":
 108                 classname = "PointToPointHelper"
 109             elif rtype == "ns3::CsmaNetDevice":
 110                 classname = "CsmaHelper"
 111             elif rtype == "ns3::EmuNetDevice":
 112                 classname = "EmuHelper"
 113             elif rtype == "ns3::FdNetDevice":
 114                 classname = "FdNetDeviceHelper"
 115             elif rtype in [ "ns3::BaseStationNetDevice", "SubscriberStationNetDevice" ]:
 116                 classname = "WimaxHelper"
 117             elif rtype == "ns3::WifiNetDevice":
 118                 classname = "YansWifiPhyHelper"
 119
 120             self._device_helper_uuid = self.simulation.create(classname)
 121
 122         return self._device_helper_uuid
 123
 124     @property
 125     def _rms_to_wait(self):
 126         rms = set()
 127
 128         node = self.node
 129         rms.add(node)
 130
 131         rms.add(self.channel)
 132         return rms
 133
 134     def _configure_object(self):
 135         # Set Mac
 136         self._configure_mac_address()
 137
 138         # Set IP address
 139         self._configure_ip_address()
 140
 141         # Enable traces
 142         self._configure_traces()
 143
 144     def _configure_mac_address(self):
 145         mac = self.get("mac")
 146         if mac:
 147             mac_uuid = self.simulation.create("Mac48Address", mac)
 148         else:
 149             mac_uuid = self.simulation.invoke("singleton::Mac48Address", "Allocate")
 150
 151         self.simulation.invoke(self.uuid, "SetAddress", mac_uuid)
 152
 153     def _configure_ip_address(self):
 154         ip = self.get("ip")
 155         prefix = self.get("prefix")
 156
 157         i = ipaddr.IPAddress(ip)
 158         if i.version == 4:
 159             # IPv4
 160             ipv4 = self.node.ipv4
 161             ifindex_uuid = self.simulation.invoke(ipv4.uuid, "AddInterface",
 162                     self.uuid)
 163             ipv4_addr_uuid = self.simulation.create("Ipv4Address", ip)
 164             ipv4_mask_uuid = self.simulation.create("Ipv4Mask", "/%s" % str(prefix))
 165             inaddr_uuid = self.simulation.create("Ipv4InterfaceAddress",
 166                     ipv4_addr_uuid, ipv4_mask_uuid)
 167             self.simulation.invoke(ipv4.uuid, "AddAddress", ifindex_uuid,
 168                     inaddr_uuid)
 169             self.simulation.invoke(ipv4.uuid, "SetMetric", ifindex_uuid, 1)
 170             self.simulation.invoke(ipv4.uuid, "SetUp", ifindex_uuid)
 171         else:
 172             # IPv6
 173             # TODO!
 174             pass
 175
 176     def _configure_traces(self):
 177         if self.trace_enabled("pcap"):
 178             helper_uuid = self.device_helper_uuid
 179
 180             filename = "trace-pcap-netdev-%d.pcap" % self.guid
 181             self._trace_filename["pcap"] = filename
 182
 183             filepath = self.simulation.trace_filepath(filename)
 184
 185             self.simulation.invoke(helper_uuid, "EnablePcap", filepath,
 186                     self.uuid, promiscuous = False, explicitFilename = True)
 187
 188         if self.trace_enabled("promiscPcap"):
 189             helper_uuid = self.device_helper_uuid
 190
 191             filename = "trace-promisc-pcap-netdev-%d.pcap" % self.guid
 192             self._trace_filename["promiscPcap"] = filename
 193
 194             filepath = self.simulation.trace_filepath(filename)
 195
 196             self.simulation.invoke(helper_uuid, "EnablePcap", filepath,
 197                     self.uuid, promiscuous = True, explicitFilename = True)
 198
 199         if self.trace_enabled("ascii"):
 200             helper_uuid = self.device_helper_uuid
 201             ascii_helper_uuid = self.ascii_helper_uuid
 202
 203             filename = "trace-ascii-netdev-%d.tr" % self.guid
 204             self._trace_filename["ascii"] = filename
 205
 206             filepath = self.simulation.trace_filepath(filename)
 207             stream_uuid = self.simulation.invoke(ascii_helper_uuid,
 208                     "CreateFileStream", filepath)
 209             self.simulation.invoke(helper_uuid, "EnableAscii", stream_uuid,
 210                     self.uuid)
 211
 212     def _connect_object(self):
 213         node = self.node
 214         if node and node.uuid not in self.connected:
 215             self.simulation.invoke(node.uuid, "AddDevice", self.uuid)
 216             self._connected.add(node.uuid)
 217
 218         channel = self.channel
 219         if channel and channel.uuid not in self.connected:
 220             self.simulation.invoke(self.uuid, "Attach", channel.uuid)
 221             self._connected.add(channel.uuid)
 222
 223         # Verify that the device has a queue. If no queue is added a segfault
 224         # error occurs
 225         queue = self.queue
 226