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