test/test_l2tp.py

   1 #!/usr/bin/env python
   2
   3 import unittest
   4
   5 from scapy.layers.l2 import Ether
   6 from scapy.layers.inet6 import IPv6
   7
   8 from framework import VppTestCase
   9
  10
  11 class TestL2tp(VppTestCase):
  12     """ L2TP Test Case """
  13
  14     @classmethod
  15     def setUpClass(cls):
  16         super(TestL2tp, cls).setUpClass()
  17
  18         cls.create_pg_interfaces(range(1))
  19         cls.pg0.admin_up()
  20         cls.pg0.config_ip6()
  21
  22     def test_l2tp_decap_local(self):
  23         """ L2TP don't accept packets unless configured """
  24
  25         pkt = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
  26                IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6, nh=115))
  27
  28         self.pg0.add_stream(pkt)
  29         self.pg_start()
  30
  31         # l2tp should not accept packets
  32         err = self.statistics.get_counter(
  33             '/err/l2tp-decap-local/l2tpv3 session not found')[0]
  34         self.assertEqual(err, 0)
  35         err_count = err
  36
  37         self.vapi.l2tpv3_create_tunnel(client_address=self.pg0.local_ip6,
  38                                        our_address=self.pg0.remote_ip6)
  39
  40         self.pg0.add_stream(pkt)
  41         self.pg_start()
  42
  43         # l2tp accepts packets
  44         err = self.statistics.get_counter(
  45             '/err/l2tp-decap-local/l2tpv3 session not found')[0]
  46         self.assertEqual(err, 1)
  47         err_count = err