test/test_l2tp.py

   1 #!/usr/bin/env python3
   2
   3 import unittest
   4
   5 from scapy.layers.l2 import Ether
   6 from scapy.layers.inet6 import IPv6
   7
   8 from framework import tag_fixme_vpp_workers
   9 from framework import VppTestCase
  10
  11
  12 @tag_fixme_vpp_workers
  13 class TestL2tp(VppTestCase):
  14     """L2TP Test Case"""
  15
  16     @classmethod
  17     def setUpClass(cls):
  18         super(TestL2tp, cls).setUpClass()
  19
  20         cls.create_pg_interfaces(range(1))
  21         cls.pg0.admin_up()
  22         cls.pg0.config_ip6()
  23
  24     def test_l2tp_decap_local(self):
  25         """L2TP don't accept packets unless configured"""
  26
  27         pkt = Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / IPv6(
  28             src=self.pg0.remote_ip6, dst=self.pg0.local_ip6, nh=115
  29         )
  30
  31         self.pg0.add_stream(pkt)
  32         self.pg_start()
  33
  34         # l2tp should not accept packets
  35         err = self.statistics.get_counter(
  36             "/err/l2tp-decap-local/l2tpv3 session not found"
  37         )[0]
  38         self.assertEqual(err, 0)
  39         err_count = err
  40
  41         self.vapi.l2tpv3_create_tunnel(
  42             client_address=self.pg0.local_ip6, our_address=self.pg0.remote_ip6
  43         )
  44
  45         self.pg0.add_stream(pkt)
  46         self.pg_start()
  47
  48         # l2tp accepts packets
  49         err = self.statistics.get_counter(
  50             "/err/l2tp-decap-local/l2tpv3 session not found"
  51         )[0]
  52         self.assertEqual(err, 1)
  53         err_count = err