test/resources/linux/ns3/cross_ns3_linux_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 as published by
   8 #    the Free Software Foundation, either version 3 of the License, or
   9 #    (at your option) any later version.
  10 #
  11 #    This program is distributed in the hope that it will be useful,
  12 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 #    GNU General Public License for more details.
  15 #
  16 #    You should have received a copy of the GNU General Public License
  17 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 #
  19 # Author: Alina Quereilhac <alina.quereilhac@inria.fr>
  20
  21 from nepi.execution.ec import ExperimentController
  22 from nepi.execution.resource import ResourceState, ResourceAction
  23 from nepi.execution.trace import TraceAttr
  24
  25 from test_utils import skipIfNotAlive
  26
  27 import os
  28 import time
  29 import unittest
  30
  31 def add_ns3_node(ec, simu):
  32     node = ec.register_resource("ns3::Node")
  33     ec.set(node, "enableStack", True)
  34     ec.register_connection(node, simu)
  35
  36     """
  37     ipv4 = ec.register_resource("ns3::Ipv4L3Protocol")
  38     ec.register_connection(node, ipv4)
  39
  40     arp = ec.register_resource("ns3::ArpL3Protocol")
  41     ec.register_connection(node, arp)
  42
  43     icmp = ec.register_resource("ns3::Icmpv4L4Protocol")
  44     ec.register_connection(node, icmp)
  45
  46     udp = ec.register_resource("ns3::UdpL4Protocol")
  47     ec.register_connection(node, udp)
  48     """
  49
  50     return node
  51
  52 def add_fd_device(ec, node, ip, prefix):
  53     dev = ec.register_resource("ns3::FdNetDevice")
  54     ec.set(dev, "ip", ip)
  55     ec.set(dev, "prefix", prefix)
  56     ec.register_connection(node, dev)
  57
  58     return dev
  59
  60 def add_tap_device(ec, node, ip, prefix):
  61     dev = ec.register_resource("linux::Tap")
  62     ec.set(dev, "ip", ip)
  63     ec.set(dev, "prefix", prefix)
  64     ec.register_connection(node, dev)
  65
  66     return dev
  67
  68 def add_point2point_device(ec, node, ip, prefix):
  69     dev = ec.register_resource("ns3::PointToPointNetDevice")
  70     ec.set(dev, "ip", ip)
  71     ec.set(dev, "prefix", prefix)
  72     ec.register_connection(node, dev)
  73
  74     queue = ec.register_resource("ns3::DropTailQueue")
  75     ec.register_connection(dev, queue)
  76
  77     return dev
  78
  79 class LinuxNS3FdNetDeviceTest(unittest.TestCase):
  80     def setUp(self):
  81         self.fedora_host = "nepi2.pl.sophia.inria.fr"
  82         self.fedora_user = "inria_nepi"
  83         self.fedora_identity = "%s/.ssh/id_rsa_planetlab" % (os.environ['HOME'])
  84
  85         self.ubuntu_host = "roseval.pl.sophia.inria.fr"
  86         self.ubuntu_user = "inria_nepi"
  87         self.ubuntu_identity = "%s/.ssh/id_rsa" % (os.environ['HOME'])
  88
  89     @skipIfNotAlive
  90     def t_cross_ping(self, host, user = None, identity = None):
  91         ec = ExperimentController(exp_id = "test-linux-ns3-tap-fd")
  92
  93         node = ec.register_resource("linux::Node")
  94         if host == "localhost":
  95             ec.set(node, "hostname", "localhost")
  96         else:
  97             ec.set(node, "hostname", host)
  98             ec.set(node, "username", user)
  99             ec.set(node, "identity", identity)
 100
 101         ec.set(node, "cleanProcesses", True)
 102         ec.set(node, "cleanExperiment", True)
 103
 104         simu = ec.register_resource("linux::ns3::Simulation")
 105         ec.set(simu, "simulatorImplementationType", "ns3::RealtimeSimulatorImpl")
 106         ec.set(simu, "checksumEnabled", True)
 107         ec.set(simu, "verbose", True)
 108         #ec.set(simu, "buildMode", "debug")
 109         #ec.set(simu, "nsLog", "FdNetDevice")
 110         ec.register_connection(simu, node)
 111
 112         nsnode1 = add_ns3_node(ec, simu)
 113         dev1 = add_point2point_device(ec, nsnode1, "10.0.0.1", "30")
 114
 115         nsnode2 = add_ns3_node(ec, simu)
 116         dev2 = add_point2point_device(ec, nsnode2, "10.0.0.2", "30")
 117
 118         # Add routes on the NS3 side
 119         r1 = ec.register_resource("ns3::Route")
 120         ec.set(r1, "network", "10.0.1.0")
 121         ec.set(r1, "prefix", "30")
 122         ec.set(r1, "nexthop", "10.0.0.1")
 123         ec.register_connection(r1, nsnode2)
 124
 125         # Create channel
 126         chan = ec.register_resource("ns3::PointToPointChannel")
 127         ec.set(chan, "Delay", "0s")
 128         ec.register_connection(chan, dev1)
 129         ec.register_connection(chan, dev2)
 130
 131         fddev = add_fd_device(ec, nsnode1, "10.0.1.2", "30")
 132         ec.enable_trace(fddev, "pcap")
 133         ec.enable_trace(fddev, "promiscPcap")
 134         ec.enable_trace(fddev, "ascii")
 135
 136         tap = add_tap_device(ec, node, "10.0.1.1", "30")
 137
 138         crosslink = ec.register_resource("linux::ns3::TunTapFdLink")
 139         ec.register_connection(crosslink, tap)
 140         ec.register_connection(crosslink, fddev)
 141
 142         # Add routes on the localhost side
 143         r2 = ec.register_resource("linux::Route")
 144         ec.set(r2, "network", "10.0.0.0")
 145         ec.set(r2, "prefix", "30")
 146         ec.set(r2, "nexthop", "10.0.1.2")
 147         ec.register_connection(r2, tap)
 148
 149         app = ec.register_resource("linux::Application")
 150         ec.set(app, "command", "ping -c3 10.0.0.1")
 151         ec.register_connection(app, node)
 152
 153         ec.register_condition(app, ResourceAction.START, simu,
 154                 ResourceState.STARTED, time="5s")
 155
 156         ec.deploy()
 157
 158         ec.wait_finished([app])
 159
 160         stdout = ec.trace(app, "stdout")
 161         print stdout
 162         expected = "3 packets transmitted, 3 received, 0% packet loss"
 163         self.assertTrue(stdout.find(expected) > -1)
 164
 165         ## Releasing to force ns3 to flush the traces
 166         ec.release()
 167         pcap = ec.trace(fddev, "pcap")
 168
 169         self.assertTrue(len(pcap) > 4000)
 170         ec.shutdown()
 171
 172     def ztest_cross_ping_fedora(self):
 173         self.t_cross_ping(self.fedora_host, self.fedora_user, self.fedora_identity)
 174
 175     def test_cross_ping_ubuntu(self):
 176         self.t_cross_ping(self.ubuntu_host, self.ubuntu_user, self.ubuntu_identity)
 177
 178     def test_cross_ping_local(self):
 179         self.t_cross_ping("localhost")
 180
 181
 182 if __name__ == '__main__':
 183     unittest.main()
 184