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 nepi.execution.ec import ExperimentController
  21 from nepi.execution.trace import TraceAttr
  22
  23 from test_utils import skipIfNotAlive, skipIf
  24
  25 import os
  26 import time
  27 import unittest
  28
  29 def add_node(ec, emu, addr, prefix):
  30     node = ec.register_resource("netns::Node")
  31     ec.register_connection(node, emu)
  32
  33     iface = ec.register_resource("netns::NodeInterface")
  34     ec.register_connection(iface, node)
  35
  36     ip = ec.register_resource("netns::IPv4Address")
  37     ec.set(ip, "ip", addr)
  38     ec.set(ip, "prefix", prefix)
  39     ec.register_connection(ip, iface)
  40
  41     print ec.get(ip, "ip"), addr
  42     print ec.get(ip, "prefix"), prefix
  43
  44     return node, iface
  45
  46 class LinuxNetNSEmulationTest(unittest.TestCase):
  47     def setUp(self):
  48         self.fedora_host = "mimas.inria.fr"
  49         self.fedora_user = "aquereil"
  50         self.fedora_identity = "%s/.ssh/id_rsa" % (os.environ['HOME'])
  51
  52     @skipIfNotAlive
  53     @skipIf(os.getuid() != 0, "Test requires root privileges")
  54     def t_ping(self, host, user = None, identity = None):
  55         ec = ExperimentController(exp_id = "test-netns-p2p-ping")
  56
  57         node = ec.register_resource("linux::Node")
  58         if host == "localhost":
  59             ec.set(node, "hostname", "localhost")
  60         else:
  61             ec.set(node, "hostname", host)
  62             ec.set(node, "username", user)
  63             ec.set(node, "identity", identity)
  64
  65         ec.set(node, "cleanProcesses", True)
  66         #ec.set(node, "cleanHome", True)
  67
  68         emu = ec.register_resource("linux::netns::Emulation")
  69         ec.set(emu, "verbose", True)
  70         ec.register_connection(emu, node)
  71
  72         netnode1, iface1 = add_node(ec, emu, "10.0.0.1", "24")
  73         netnode2, iface2 = add_node(ec, emu, "10.0.0.2", "24")
  74
  75         switch = ec.register_resource("netns::Switch")
  76         ec.register_connection(iface1, switch)
  77         ec.register_connection(iface2, switch)
  78
  79         ping = ec.register_resource("netns::Application")
  80         ec.set(ping, "command", "ping -c20 10.0.0.2")
  81         ec.register_connection(ping, netnode1)
  82
  83         ec.deploy()
  84
  85         ec.wait_finished([ping])
  86
  87         stdout = ec.trace(ping, "stdout")
  88
  89         expected = "20 packets transmitted, 20 received, 0% packet loss"
  90         self.assertTrue(stdout.find(expected) > -1)
  91
  92         ec.shutdown()
  93
  94     def ztest_ping_fedora(self):
  95         self.t_ping(self.fedora_host, self.fedora_user, self.fedora_identity)
  96
  97     def test_ping_local(self):
  98         self.t_ping("localhost")
  99
 100
 101 if __name__ == '__main__':
 102     unittest.main()
 103