test/resources/linux/ns3/cross_ns3_linux_tuntapfdlink_ping.py

   1 #!/usr/bin/env python
   2 #
   3 #    NEPI, a framework to manage network experiments
   4 #    Copyright (C) 2013 INRIA
   5 #
   6 #    This program is free software: you can redistribute it and/or modify
   7 #    it under the terms of the GNU General Public License version 2 as
   8 #    published by the Free Software Foundation;
   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.ec import ExperimentController
  21 from nepi.execution.resource import ResourceState, ResourceAction
  22 from nepi.execution.trace import TraceAttr
  23
  24 from test_utils import skipIfNotAlive
  25
  26 import os
  27 import time
  28 import unittest
  29
  30 def add_ns3_node(ec, simu):
  31     node = ec.register_resource("ns3::Node")
  32     ec.set(node, "enableStack", True)
  33     ec.register_connection(node, simu)
  34
  35     """
  36     ipv4 = ec.register_resource("ns3::Ipv4L3Protocol")
  37     ec.register_connection(node, ipv4)
  38
  39     arp = ec.register_resource("ns3::ArpL3Protocol")
  40     ec.register_connection(node, arp)
  41
  42     icmp = ec.register_resource("ns3::Icmpv4L4Protocol")
  43     ec.register_connection(node, icmp)
  44
  45     udp = ec.register_resource("ns3::UdpL4Protocol")
  46     ec.register_connection(node, udp)
  47     """
  48
  49     return node
  50
  51 def add_fd_device(ec, node, ip, prefix):
  52     dev = ec.register_resource("ns3::FdNetDevice")
  53     ec.set(dev, "ip", ip)
  54     ec.set(dev, "prefix", prefix)
  55     ec.register_connection(node, dev)
  56
  57     return dev
  58
  59 def add_tap_device(ec, node, ip, prefix):
  60     dev = ec.register_resource("linux::Tap")
  61     ec.set(dev, "ip", ip)
  62     ec.set(dev, "prefix", prefix)
  63     ec.register_connection(node, dev)
  64
  65     return dev
  66
  67 def add_point2point_device(ec, node, ip, prefix):
  68     dev = ec.register_resource("ns3::PointToPointNetDevice")
  69     ec.set(dev, "ip", ip)
  70     ec.set(dev, "prefix", prefix)
  71     ec.register_connection(node, dev)
  72
  73     queue = ec.register_resource("ns3::DropTailQueue")
  74     ec.register_connection(dev, queue)
  75
  76     return dev
  77
  78 class LinuxNS3FdNetDeviceTest(unittest.TestCase):
  79     def setUp(self):
  80         self.fedora_host = "nepi2.pl.sophia.inria.fr"
  81         self.fedora_user = "inria_nepi"
  82         self.fedora_identity = "%s/.ssh/id_rsa_planetlab" % (os.environ['HOME'])
  83
  84         self.ubuntu_host = "roseval.pl.sophia.inria.fr"
  85         self.ubuntu_user = "inria_nepi"
  86         self.ubuntu_identity = "%s/.ssh/id_rsa" % (os.environ['HOME'])
  87
  88     @skipIfNotAlive
  89     def t_cross_ping(self, host, user = None, identity = None):
  90         ec = ExperimentController(exp_id = "test-linux-ns3-tap-fd")
  91
  92         node = ec.register_resource("linux::Node")
  93         if host == "localhost":
  94             ec.set(node, "hostname", "localhost")
  95         else:
  96             ec.set(node, "hostname", host)
  97             ec.set(node, "username", user)
  98             ec.set(node, "identity", identity)
  99
 100         ec.set(node, "cleanProcesses", True)
 101         ec.set(node, "cleanExperiment", True)
 102
 103         simu = ec.register_resource("linux::ns3::Simulation")
 104         ec.set(simu, "simulatorImplementationType", "ns3::RealtimeSimulatorImpl")
 105         ec.set(simu, "checksumEnabled", True)
 106         ec.set(simu, "verbose", True)
 107         #ec.set(simu, "buildMode", "debug")
 108         #ec.set(simu, "nsLog", "FdNetDevice")
 109         ec.register_connection(simu, node)
 110
 111         nsnode1 = add_ns3_node(ec, simu)
 112         dev1 = add_point2point_device(ec, nsnode1, "10.0.0.1", "30")
 113
 114         nsnode2 = add_ns3_node(ec, simu)
 115         dev2 = add_point2point_device(ec, nsnode2, "10.0.0.2", "30")
 116
 117         # Add routes on the NS3 side
 118         r1 = ec.register_resource("ns3::Route")
 119         ec.set(r1, "network", "10.0.1.0")
 120         ec.set(r1, "prefix", "30")
 121         ec.set(r1, "nexthop", "10.0.0.1")
 122         ec.register_connection(r1, nsnode2)
 123
 124         # Create channel
 125         chan = ec.register_resource("ns3::PointToPointChannel")
 126         ec.set(chan, "Delay", "0s")
 127         ec.register_connection(chan, dev1)
 128         ec.register_connection(chan, dev2)
 129
 130         fddev = add_fd_device(ec, nsnode1, "10.0.1.2", "30")
 131         ec.enable_trace(fddev, "pcap")
 132         ec.enable_trace(fddev, "promiscPcap")
 133         ec.enable_trace(fddev, "ascii")
 134
 135         tap = add_tap_device(ec, node, "10.0.1.1", "30")
 136
 137         crosslink = ec.register_resource("linux::ns3::TunTapFdLink")
 138         ec.register_connection(crosslink, tap)
 139         ec.register_connection(crosslink, fddev)
 140
 141         # Add routes on the localhost side
 142         r2 = ec.register_resource("linux::Route")
 143         ec.set(r2, "network", "10.0.0.0")
 144         ec.set(r2, "prefix", "30")
 145         ec.set(r2, "nexthop", "10.0.1.2")
 146         ec.register_connection(r2, tap)
 147
 148         app = ec.register_resource("linux::Application")
 149         ec.set(app, "command", "ping -c3 10.0.0.1")
 150         ec.register_connection(app, node)
 151
 152         ec.register_condition(app, ResourceAction.START, simu,
 153                 ResourceState.STARTED, time="5s")
 154
 155         ec.deploy()
 156
 157         ec.wait_finished([app])
 158
 159         stdout = ec.trace(app, "stdout")
 160         print stdout
 161         expected = "3 packets transmitted, 3 received, 0% packet loss"
 162         self.assertTrue(stdout.find(expected) > -1)
 163
 164         ## Releasing to force ns3 to flush the traces
 165         ec.release()
 166         pcap = ec.trace(fddev, "pcap")
 167
 168         self.assertTrue(len(pcap) > 4000)
 169         ec.shutdown()
 170
 171     def ztest_cross_ping_fedora(self):
 172         self.t_cross_ping(self.fedora_host, self.fedora_user, self.fedora_identity)
 173
 174     def test_cross_ping_ubuntu(self):
 175         self.t_cross_ping(self.ubuntu_host, self.ubuntu_user, self.ubuntu_identity)
 176
 177     def test_cross_ping_local(self):
 178         self.t_cross_ping("localhost")
 179
 180
 181 if __name__ == '__main__':
 182     unittest.main()
 183