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 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.trace import TraceAttr
  24
  25 from test_utils import skipIfNotAlive, skipIf
  26
  27 import os
  28 import time
  29 import unittest
  30
  31 def add_node(ec, emu, addr, prefix):
  32     node = ec.register_resource("netns::Node")
  33     ec.register_connection(node, emu)
  34
  35     iface = ec.register_resource("netns::NodeInterface")
  36     ec.register_connection(iface, node)
  37
  38     ip = ec.register_resource("netns::IPv4Address")
  39     ec.set(ip, "ip", addr)
  40     ec.set(ip, "prefix", prefix)
  41     ec.register_connection(ip, iface)
  42
  43     print(ec.get(ip, "ip"), addr)
  44     print(ec.get(ip, "prefix"), prefix)
  45
  46     return node, iface
  47
  48 class LinuxNetNSEmulationTest(unittest.TestCase):
  49     def setUp(self):
  50         self.fedora_host = "mimas.inria.fr"
  51         self.fedora_user = "aquereil"
  52         self.fedora_identity = "%s/.ssh/id_rsa" % (os.environ['HOME'])
  53
  54     @skipIfNotAlive
  55     @skipIf(os.getuid() != 0, "Test requires root privileges")
  56     def t_ping(self, host, user = None, identity = None):
  57         ec = ExperimentController(exp_id = "test-netns-p2p-ping")
  58
  59         node = ec.register_resource("linux::Node")
  60         if host == "localhost":
  61             ec.set(node, "hostname", "localhost")
  62         else:
  63             ec.set(node, "hostname", host)
  64             ec.set(node, "username", user)
  65             ec.set(node, "identity", identity)
  66
  67         ec.set(node, "cleanProcesses", True)
  68         #ec.set(node, "cleanHome", True)
  69
  70         emu = ec.register_resource("linux::netns::Emulation")
  71         ec.set(emu, "verbose", True)
  72         ec.register_connection(emu, node)
  73
  74         netnode1, iface1 = add_node(ec, emu, "10.0.0.1", "24")
  75         netnode2, iface2 = add_node(ec, emu, "10.0.0.2", "24")
  76
  77         switch = ec.register_resource("netns::Switch")
  78         ec.register_connection(iface1, switch)
  79         ec.register_connection(iface2, switch)
  80
  81         ping = ec.register_resource("netns::Application")
  82         ec.set(ping, "command", "ping -c20 10.0.0.2")
  83         ec.register_connection(ping, netnode1)
  84
  85         ec.deploy()
  86
  87         ec.wait_finished([ping])
  88
  89         stdout = ec.trace(ping, "stdout")
  90
  91         expected = "20 packets transmitted, 20 received, 0% packet loss"
  92         self.assertTrue(stdout.find(expected) > -1)
  93
  94         ec.shutdown()
  95
  96     def ztest_ping_fedora(self):
  97         self.t_ping(self.fedora_host, self.fedora_user, self.fedora_identity)
  98
  99     def test_ping_local(self):
 100         self.t_ping("localhost")
 101
 102
 103 if __name__ == '__main__':
 104     unittest.main()
 105