github.com/osrg/gobgp@v2.0.0+incompatible/test/scenario_test/bgp_malformed_msg_handling_test.py (about)

     1  # Copyright (C) 2017 Nippon Telegraph and Telephone Corporation.
     2  #
     3  # Licensed under the Apache License, Version 2.0 (the "License");
     4  # you may not use this file except in compliance with the License.
     5  # You may obtain a copy of the License at
     6  #
     7  #    http://www.apache.org/licenses/LICENSE-2.0
     8  #
     9  # Unless required by applicable law or agreed to in writing, software
    10  # distributed under the License is distributed on an "AS IS" BASIS,
    11  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
    12  # implied.
    13  # See the License for the specific language governing permissions and
    14  # limitations under the License.
    15  
    16  from __future__ import absolute_import
    17  
    18  import sys
    19  import time
    20  import unittest
    21  
    22  from fabric.api import local
    23  import nose
    24  
    25  from lib.noseplugin import OptionParser, parser_option
    26  
    27  from lib import base
    28  from lib.base import BGP_FSM_ESTABLISHED
    29  from lib.gobgp import GoBGPContainer
    30  from lib.exabgp import ExaBGPContainer
    31  
    32  
    33  class GoBGPTestBase(unittest.TestCase):
    34  
    35      @classmethod
    36      def setUpClass(cls):
    37          gobgp_ctn_image_name = parser_option.gobgp_image
    38          base.TEST_PREFIX = parser_option.test_prefix
    39  
    40          g1 = GoBGPContainer(name='g1', asn=65000, router_id='192.168.0.1',
    41                              ctn_image_name=gobgp_ctn_image_name,
    42                              log_level=parser_option.gobgp_log_level)
    43          e1 = ExaBGPContainer(name='e1', asn=65001, router_id='192.168.0.2')
    44  
    45          ctns = [g1, e1]
    46          initial_wait_time = max(ctn.run() for ctn in ctns)
    47          time.sleep(initial_wait_time)
    48  
    49          g1.add_peer(e1, treat_as_withdraw=True)
    50          e1.add_peer(g1)
    51  
    52          cls.g1 = g1
    53          cls.e1 = e1
    54  
    55      # test each neighbor state is turned establish
    56      def test_01_neighbor_established(self):
    57          self.g1.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=self.e1)
    58  
    59      def test_02_attribute_discard(self):
    60          # Malformed attribute 'AGGREGATOR' should be discard, but the session should not be disconnected.
    61          self.e1.add_route('10.0.0.0/24', attribute='0x07 0xc0 0x0000006400')
    62  
    63          # Confirm the session is not disconnected
    64          for _ in range(5):
    65              state = self.g1.get_neighbor_state(self.e1)
    66              self.assertTrue(BGP_FSM_ESTABLISHED, state)
    67              time.sleep(1)
    68  
    69          # Confirm the path is added
    70          dests = self.g1.get_global_rib()
    71          self.assertEqual(len(dests), 1)
    72          routes = dests[0]['paths']
    73          self.assertEqual(len(routes), 1)
    74  
    75          # Confirm the attribute 'AGGREGATOR(type=7)' is discarded
    76          for d in routes[0]['attrs']:
    77              self.assertFalse(d['type'] == 7)
    78  
    79          self.e1.del_route('10.0.0.0/24')
    80  
    81      def test_03_treat_as_withdraw(self):
    82          # Malformed attribute 'MULTI_EXIT_DESC' should be treated as withdraw,
    83          # but the session should not be disconnected.
    84          self.e1.add_route('20.0.0.0/24', attribute='0x04 0x80 0x00000064')
    85          self.e1.add_route('30.0.0.0/24', attribute='0x04 0x80 0x00000064')
    86          # Malformed
    87          self.e1.add_route('30.0.0.0/24', attribute='0x04 0x80 0x0000000064')
    88  
    89          # Confirm the session is not disconnected
    90          for _ in range(5):
    91              state = self.g1.get_neighbor_state(self.e1)
    92              self.assertTrue(BGP_FSM_ESTABLISHED, state)
    93              time.sleep(1)
    94  
    95          # Confirm the number of path in RIB is only one
    96          dests = self.g1.get_global_rib()
    97          self.assertEqual(len(dests), 1)
    98          self.assertEqual(dests[0]['paths'][0]['nlri']['prefix'], '20.0.0.0/24')
    99  
   100  
   101  if __name__ == '__main__':
   102      output = local("which docker 2>&1 > /dev/null ; echo $?", capture=True)
   103      if int(output) is not 0:
   104          print "docker not found"
   105          sys.exit(1)
   106  
   107      nose.main(argv=sys.argv, addplugins=[OptionParser()],
   108                defaultTest=sys.argv[0])