test/resources/linux/netns/netnsemulation.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.trace import TraceAttr
  23
  24 from test_utils import skipIfNotAlive, skipIf
  25
  26 import os
  27 import time
  28 import unittest
  29
  30 def add_node(ec, emu, addr, prefix):
  31     node = ec.register_resource("netns::Node")
  32     ec.register_connection(node, emu)
  33
  34     iface = ec.register_resource("netns::NodeInterface")
  35     ec.register_connection(iface, node)
  36
  37     ip = ec.register_resource("netns::IPv4Address")
  38     ec.set(ip, "ip", addr)
  39     ec.set(ip, "prefix", prefix)
  40     ec.register_connection(ip, iface)
  41
  42     print ec.get(ip, "ip"), addr
  43     print ec.get(ip, "prefix"), prefix
  44
  45     return node, iface
  46
  47 class LinuxNetNSEmulationTest(unittest.TestCase):
  48     def setUp(self):
  49         self.fedora_host = "mimas.inria.fr"
  50         self.fedora_user = "aquereil"
  51         self.fedora_identity = "%s/.ssh/id_rsa" % (os.environ['HOME'])
  52
  53     @skipIfNotAlive
  54     @skipIf(os.getuid() != 0, "Test requires root privileges")
  55     def t_ping(self, host, user = None, identity = None):
  56         ec = ExperimentController(exp_id = "test-netns-p2p-ping")
  57
  58         node = ec.register_resource("linux::Node")
  59         if host == "localhost":
  60             ec.set(node, "hostname", "localhost")
  61         else:
  62             ec.set(node, "hostname", host)
  63             ec.set(node, "username", user)
  64             ec.set(node, "identity", identity)
  65
  66         ec.set(node, "cleanProcesses", True)
  67         #ec.set(node, "cleanHome", True)
  68
  69         emu = ec.register_resource("linux::netns::Emulation")
  70         ec.set(emu, "verbose", True)
  71         ec.register_connection(emu, node)
  72
  73         netnode1, iface1 = add_node(ec, emu, "10.0.0.1", "24")
  74         netnode2, iface2 = add_node(ec, emu, "10.0.0.2", "24")
  75
  76         switch = ec.register_resource("netns::Switch")
  77         ec.register_connection(iface1, switch)
  78         ec.register_connection(iface2, switch)
  79
  80         ping = ec.register_resource("netns::Application")
  81         ec.set(ping, "command", "ping -c20 10.0.0.2")
  82         ec.register_connection(ping, netnode1)
  83
  84         ec.deploy()
  85
  86         ec.wait_finished([ping])
  87
  88         stdout = ec.trace(ping, "stdout")
  89
  90         expected = "20 packets transmitted, 20 received, 0% packet loss"
  91         self.assertTrue(stdout.find(expected) > -1)
  92
  93         ec.shutdown()
  94
  95     def ztest_ping_fedora(self):
  96         self.t_ping(self.fedora_host, self.fedora_user, self.fedora_identity)
  97
  98     def test_ping_local(self):
  99         self.t_ping("localhost")
 100
 101
 102 if __name__ == '__main__':
 103     unittest.main()
 104