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 __future__ import print_function
  21
  22 from nepi.execution.ec import ExperimentController
  23 from nepi.execution.resource import ResourceState, ResourceAction
  24 from nepi.execution.trace import TraceAttr
  25
  26 from test_utils import skipIfNotAlive
  27
  28 import os
  29 import time
  30 import unittest
  31
  32 def add_ns3_node(ec, simu):
  33     node = ec.register_resource("ns3::Node")
  34     ec.set(node, "enableStack", True)
  35     ec.register_connection(node, simu)
  36
  37     """
  38     ipv4 = ec.register_resource("ns3::Ipv4L3Protocol")
  39     ec.register_connection(node, ipv4)
  40
  41     arp = ec.register_resource("ns3::ArpL3Protocol")
  42     ec.register_connection(node, arp)
  43
  44     icmp = ec.register_resource("ns3::Icmpv4L4Protocol")
  45     ec.register_connection(node, icmp)
  46
  47     udp = ec.register_resource("ns3::UdpL4Protocol")
  48     ec.register_connection(node, udp)
  49     """
  50
  51     return node
  52
  53 def add_fd_device(ec, node, ip, prefix):
  54     dev = ec.register_resource("ns3::FdNetDevice")
  55     ec.set(dev, "ip", ip)
  56     ec.set(dev, "prefix", prefix)
  57     ec.register_connection(node, dev)
  58
  59     return dev
  60
  61 def add_tap_device(ec, node, ip, prefix):
  62     dev = ec.register_resource("linux::Tap")
  63     ec.set(dev, "ip", ip)
  64     ec.set(dev, "prefix", prefix)
  65     ec.register_connection(node, dev)
  66
  67     return dev
  68
  69 def add_point2point_device(ec, node, ip, prefix):
  70     dev = ec.register_resource("ns3::PointToPointNetDevice")
  71     ec.set(dev, "ip", ip)
  72     ec.set(dev, "prefix", prefix)
  73     ec.register_connection(node, dev)
  74
  75     queue = ec.register_resource("ns3::DropTailQueue")
  76     ec.register_connection(dev, queue)
  77
  78     return dev
  79
  80 class LinuxNS3FdNetDeviceTest(unittest.TestCase):
  81     def setUp(self):
  82         self.fedora_host = "nepi2.pl.sophia.inria.fr"
  83         self.fedora_user = "inria_nepi"
  84         self.fedora_identity = "%s/.ssh/id_rsa_planetlab" % (os.environ['HOME'])
  85
  86         self.ubuntu_host = "roseval.pl.sophia.inria.fr"
  87         self.ubuntu_user = "inria_nepi"
  88         self.ubuntu_identity = "%s/.ssh/id_rsa" % (os.environ['HOME'])
  89
  90     @skipIfNotAlive
  91     def t_cross_ping(self, host, user = None, identity = None):
  92         ec = ExperimentController(exp_id = "test-linux-ns3-tap-fd")
  93
  94         node = ec.register_resource("linux::Node")
  95         if host == "localhost":
  96             ec.set(node, "hostname", "localhost")
  97         else:
  98             ec.set(node, "hostname", host)
  99             ec.set(node, "username", user)
 100             ec.set(node, "identity", identity)
 101
 102         ec.set(node, "cleanProcesses", True)
 103         ec.set(node, "cleanExperiment", True)
 104
 105         simu = ec.register_resource("linux::ns3::Simulation")
 106         ec.set(simu, "simulatorImplementationType", "ns3::RealtimeSimulatorImpl")
 107         ec.set(simu, "checksumEnabled", True)
 108         ec.set(simu, "verbose", True)
 109         #ec.set(simu, "buildMode", "debug")
 110         #ec.set(simu, "nsLog", "FdNetDevice")
 111         ec.register_connection(simu, node)
 112
 113         nsnode1 = add_ns3_node(ec, simu)
 114         dev1 = add_point2point_device(ec, nsnode1, "10.0.0.1", "30")
 115
 116         nsnode2 = add_ns3_node(ec, simu)
 117         dev2 = add_point2point_device(ec, nsnode2, "10.0.0.2", "30")
 118
 119         # Add routes on the NS3 side
 120         r1 = ec.register_resource("ns3::Route")
 121         ec.set(r1, "network", "10.0.1.0")
 122         ec.set(r1, "prefix", "30")
 123         ec.set(r1, "nexthop", "10.0.0.1")
 124         ec.register_connection(r1, nsnode2)
 125
 126         # Create channel
 127         chan = ec.register_resource("ns3::PointToPointChannel")
 128         ec.set(chan, "Delay", "0s")
 129         ec.register_connection(chan, dev1)
 130         ec.register_connection(chan, dev2)
 131
 132         fddev = add_fd_device(ec, nsnode1, "10.0.1.2", "30")
 133         ec.enable_trace(fddev, "pcap")
 134         ec.enable_trace(fddev, "promiscPcap")
 135         ec.enable_trace(fddev, "ascii")
 136
 137         tap = add_tap_device(ec, node, "10.0.1.1", "30")
 138
 139         crosslink = ec.register_resource("linux::ns3::TunTapFdLink")
 140         ec.register_connection(crosslink, tap)
 141         ec.register_connection(crosslink, fddev)
 142
 143         # Add routes on the localhost side
 144         r2 = ec.register_resource("linux::Route")
 145         ec.set(r2, "network", "10.0.0.0")
 146         ec.set(r2, "prefix", "30")
 147         ec.set(r2, "nexthop", "10.0.1.2")
 148         ec.register_connection(r2, tap)
 149
 150         app = ec.register_resource("linux::Application")
 151         ec.set(app, "command", "ping -c3 10.0.0.1")
 152         ec.register_connection(app, node)
 153
 154         ec.register_condition(app, ResourceAction.START, simu,
 155                 ResourceState.STARTED, time="5s")
 156
 157         ec.deploy()
 158
 159         ec.wait_finished([app])
 160
 161         stdout = ec.trace(app, "stdout")
 162         print(stdout)
 163         expected = "3 packets transmitted, 3 received, 0% packet loss"
 164         self.assertTrue(stdout.find(expected) > -1)
 165
 166         ## Releasing to force ns3 to flush the traces
 167         ec.release()
 168         pcap = ec.trace(fddev, "pcap")
 169
 170         self.assertTrue(len(pcap) > 4000)
 171         ec.shutdown()
 172
 173     def ztest_cross_ping_fedora(self):
 174         self.t_cross_ping(self.fedora_host, self.fedora_user, self.fedora_identity)
 175
 176     def test_cross_ping_ubuntu(self):
 177         self.t_cross_ping(self.ubuntu_host, self.ubuntu_user, self.ubuntu_identity)
 178
 179     def test_cross_ping_local(self):
 180         self.t_cross_ping("localhost")
 181
 182
 183 if __name__ == '__main__':
 184     unittest.main()
 185