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# Copyright (C) 2016 Nippon Telegraph and Telephone Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import sys
import json
import time
import unittest
import collections
collections.Callable = collections.abc.Callable
import nose
from lib import base
from lib.base import (
BGP_FSM_ESTABLISHED,
assert_several_times,
local,
)
from lib.gobgp import GoBGPContainer
from lib.exabgp import ExaBGPContainer
from lib.noseplugin import OptionParser, parser_option
class GoBGPTestBase(unittest.TestCase):
SEND_MAX = 5
INSTALLED_PATHS = SEND_MAX + 1
@classmethod
def setUpClass(cls):
gobgp_ctn_image_name = parser_option.gobgp_image
base.TEST_PREFIX = parser_option.test_prefix
g1 = GoBGPContainer(name='g1', asn=65000, router_id='192.168.0.1',
ctn_image_name=gobgp_ctn_image_name,
log_level=parser_option.gobgp_log_level)
g2 = GoBGPContainer(name='g2', asn=65000, router_id='192.168.0.2',
ctn_image_name=gobgp_ctn_image_name,
log_level=parser_option.gobgp_log_level)
g3 = GoBGPContainer(name='g3', asn=65000, router_id='192.168.0.3',
ctn_image_name=gobgp_ctn_image_name,
log_level=parser_option.gobgp_log_level)
g4 = GoBGPContainer(name="g4", asn=65000, router_id="192.168.0.4",
ctn_image_name=gobgp_ctn_image_name,
log_level=parser_option.gobgp_log_level)
g5 = GoBGPContainer(name="g5", asn=65000,router_id="192.168.0.5",
ctn_image_name=gobgp_ctn_image_name,
log_level=parser_option.gobgp_log_level)
e1 = ExaBGPContainer(name="e1", asn=65000, router_id="192.168.0.6")
ctns = [g1, g2, g3, g4, g5, e1]
initial_wait_time = max(ctn.run() for ctn in ctns)
time.sleep(initial_wait_time)
g1.add_peer(e1, addpath=16)
e1.add_peer(g1, addpath=16)
g1.add_peer(g2, is_rr_client=True)
g2.add_peer(g1)
g1.add_peer(g3, addpath=cls.SEND_MAX, is_rr_client=True)
g3.add_peer(g1, addpath=cls.SEND_MAX)
g4.add_peer(g5, addpath=cls.SEND_MAX)
g5.add_peer(g4, addpath=cls.SEND_MAX)
cls.g1 = g1
cls.g2 = g2
cls.g3 = g3
cls.g4 = g4
cls.g5 = g5
cls.e1 = e1
# test each neighbor state is turned establish
def test_00_neighbor_established(self):
self.g1.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=self.g2)
self.g1.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=self.g3)
self.g1.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=self.e1)
self.g4.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=self.g5)
# prepare routes with path_id (no error check)
def test_01_prepare_add_paths_routes(self):
aspath = []
for i in range(self.INSTALLED_PATHS):
aspath.append((i + 1) * 100)
self.e1.add_route(
route="192.168.100.0/24",
identifier=(i + 1) * 10,
aspath=aspath,
)
# update multiple time the same route
# and expect the route counter to increment only once
for i in range(self.INSTALLED_PATHS):
self.g4.add_route(
route="192.168.100.0/24",
identifier=10,
local_pref=i + 100 + 1,
)
def test_02_check_g4_adj_out(self):
def f():
# the last update should have been received by g5
rib = self.g4.get_adj_rib_out(self.g5, add_path_enabled=True)
self.assertEqual(len(rib), 1)
self.assertEqual(len(rib[0]["paths"]), 1)
self.assertEqual(
rib[0]["paths"][0]["local-pref"], 100 + self.INSTALLED_PATHS
)
self.assertFalse(rib[0]["paths"][0].get("send-max-filtered", False))
assert_several_times(f)
def test_03_check_g5_global_rib(self):
def f():
# the last update should have been received by g5
rib = self.g5.get_global_rib()
self.assertEqual(len(rib), 1)
self.assertEqual(len(rib[0]["paths"]), 1)
self.assertEqual(
rib[0]["paths"][0]["local-pref"], 100 + self.INSTALLED_PATHS
)
assert_several_times(f)
# test INSTALLED_PATHS routes are installed to the rib due to add-path feature
def test_04_check_g1_global_rib(self):
def f():
rib = self.g1.get_global_rib()
self.assertEqual(len(rib), 1)
self.assertEqual(len(rib[0]["paths"]), self.INSTALLED_PATHS)
assert_several_times(f)
# test only the best path is advertised to g2
def test_05_check_g2_global_rib(self):
def f():
rib = self.g2.get_global_rib()
self.assertEqual(len(rib), 1)
self.assertEqual(len(rib[0]['paths']), 1)
self.assertEqual(len(rib[0]["paths"][0]["aspath"]), 1)
assert_several_times(f)
# test SEND_MAX routes are advertised to g3
def test_06_check_g3_global_rib(self):
def f():
rib = self.g3.get_global_rib()
self.assertEqual(len(rib), 1)
self.assertEqual(len(rib[0]["paths"]), self.SEND_MAX)
assert_several_times(f)
def test_07_check_g1_adj_out(self):
adj_out = self.g1.get_adj_rib_out(self.g2, add_path_enabled=True)
self.assertEqual(len(adj_out), 1)
self.assertEqual(len(adj_out[0]["paths"]), 1)
adj_out = self.g1.get_adj_rib_out(self.g3, add_path_enabled=True)
self.assertEqual(len(adj_out), 1)
self.assertEqual(len(adj_out[0]["paths"]), self.INSTALLED_PATHS)
# expect the last path to be filtered
self.assertTrue(adj_out[0]["paths"][-1].get("send-max-filtered", False))
# withdraw a route with path_id (no error check)
def test_08_withdraw_route_with_path_id(self):
self.e1.del_route(route="192.168.100.0/24", identifier=10)
# test the withdrawn route is removed from the rib
def test_09_check_g1_global_rib(self):
def f():
rib = self.g1.get_global_rib()
self.assertEqual(len(rib), 1)
self.assertEqual(len(rib[0]["paths"]), self.INSTALLED_PATHS - 1)
# we deleted the highest priority path
for path in rib[0]['paths']:
self.assertTrue(2 <= len(path["aspath"]) <= self.INSTALLED_PATHS)
assert_several_times(f)
def test_10_check_g1_adj_out(self):
adj_out = self.g1.get_adj_rib_out(self.g2, add_path_enabled=True)
self.assertEqual(len(adj_out), 1)
self.assertEqual(len(adj_out[0]["paths"]), 1)
adj_out = self.g1.get_adj_rib_out(self.g3, add_path_enabled=True)
self.assertEqual(len(adj_out), 1)
self.assertEqual(len(adj_out[0]["paths"]), self.SEND_MAX)
# expect the last path to not be filtered
self.assertFalse(adj_out[0]["paths"][-1].get("send-max-filtered", False))
# test the best path is replaced due to the removal from g1 rib
def test_11_check_g2_global_rib(self):
def f():
rib = self.g2.get_global_rib()
self.assertEqual(len(rib), 1)
self.assertEqual(len(rib[0]['paths']), 1)
self.assertEqual(len(rib[0]["paths"][0]["aspath"]), 2)
assert_several_times(f)
# test the withdrawn route is removed from the rib of g3
# and the filtered route is advertised to g3
def test_12_check_g3_global_rib(self):
def f():
rib = self.g3.get_global_rib()
self.assertEqual(len(rib), 1)
self.assertEqual(len(rib[0]["paths"]), self.SEND_MAX)
for path in rib[0]['paths']:
self.assertTrue(2 <= len(path["aspath"]) <= self.INSTALLED_PATHS)
assert_several_times(f)
# install a route with path_id via GoBGP CLI (no error check)
def test_13_install_add_paths_route_via_cli(self):
# identifier is duplicated with the identifier of the route from e1
self.g1.add_route(route='192.168.100.0/24', identifier=10, local_pref=500)
# test the route from CLI is installed to the rib
def test_14_check_g1_global_rib(self):
def f():
rib = self.g1.get_global_rib()
self.assertEqual(len(rib), 1)
self.assertEqual(len(rib[0]["paths"]), self.INSTALLED_PATHS)
for path in rib[0]['paths']:
if not path["aspath"]:
self.assertEqual(path['local-pref'], 500)
else:
self.assertTrue(2 <= len(path["aspath"]) <= self.INSTALLED_PATHS)
assert_several_times(f)
def test_15_check_g1_adj_out(self):
adj_out = self.g1.get_adj_rib_out(self.g2, add_path_enabled=True)
self.assertEqual(len(adj_out), 1)
self.assertEqual(len(adj_out[0]["paths"]), 1)
adj_out = self.g1.get_adj_rib_out(self.g3, add_path_enabled=True)
self.assertEqual(len(adj_out), 1)
self.assertEqual(len(adj_out[0]["paths"]), self.INSTALLED_PATHS)
# the new best path shouldn't be advertised as it is added after
# the limit is reached
self.assertEqual(adj_out[0]["paths"][0]["local-pref"], 500)
self.assertTrue(adj_out[0]["paths"][0].get("send-max-filtered", False))
# test the best path is replaced due to the CLI route from g1 rib
def test_16_check_g2_global_rib(self):
def f():
rib = self.g2.get_global_rib()
self.assertEqual(len(rib), 1)
self.assertEqual(len(rib[0]['paths']), 1)
self.assertEqual(len(rib[0]["paths"][0]["aspath"]), 0)
self.assertEqual(rib[0]["paths"][0]["local-pref"], 500)
assert_several_times(f)
# test the route from CLI is advertised from g1
def test_17_check_g3_global_rib(self):
def f():
rib = self.g3.get_global_rib()
self.assertEqual(len(rib), 1)
self.assertEqual(len(rib[0]["paths"]), self.SEND_MAX)
for path in rib[0]['paths']:
self.assertTrue(2 <= len(path["aspath"]) <= self.INSTALLED_PATHS)
assert_several_times(f)
# remove non-existing route with path_id via GoBGP CLI (no error check)
def test_18_remove_non_existing_add_paths_route_via_cli(self):
# specify locally non-existing identifier which has the same value
# with the identifier of the route from e1
self.g1.del_route(route='192.168.100.0/24', identifier=20)
# test none of route is removed by non-existing path_id via CLI
def test_19_check_g1_global_rib(self):
def f():
rib = self.g1.get_global_rib()
self.assertEqual(len(rib), 1)
self.assertEqual(len(rib[0]["paths"]), self.INSTALLED_PATHS)
for path in rib[0]['paths']:
if not path["aspath"]:
self.assertEqual(path['local-pref'], 500)
else:
self.assertTrue(2 <= len(path["aspath"]) <= self.INSTALLED_PATHS)
assert_several_times(f)
# remove route with path_id via GoBGP CLI (no error check)
def test_20_remove_add_paths_route_via_cli(self):
self.g1.del_route(route='192.168.100.0/24', identifier=10)
def test_21_check_g1_adj_out(self):
adj_out = self.g1.get_adj_rib_out(self.g2, add_path_enabled=True)
self.assertEqual(len(adj_out), 1)
self.assertEqual(len(adj_out[0]["paths"]), 1)
adj_out = self.g1.get_adj_rib_out(self.g3, add_path_enabled=True)
self.assertEqual(len(adj_out), 1)
self.assertEqual(len(adj_out[0]["paths"]), self.INSTALLED_PATHS - 1)
# test the route is removed from the rib via CLI
def test_22_check_g1_global_rib(self):
def f():
rib = self.g1.get_global_rib()
self.assertEqual(len(rib), 1)
self.assertEqual(len(rib[0]["paths"]), self.INSTALLED_PATHS - 1)
for path in rib[0]['paths']:
if not path["aspath"]:
self.assertTrue(2 <= len(path["aspath"]) <= self.INSTALLED_PATHS)
assert_several_times(f)
# test the best path is replaced the removal from g1 rib
def test_23_check_g2_global_rib(self):
def f():
rib = self.g2.get_global_rib()
self.assertEqual(len(rib), 1)
self.assertEqual(len(rib[0]['paths']), 1)
self.assertEqual(len(rib[0]["paths"][0]["aspath"]), 2)
assert_several_times(f)
# test the removed route from CLI is withdrawn by g1
def test_24_check_g3_global_rib(self):
def f():
rib = self.g3.get_global_rib()
self.assertEqual(len(rib), 1)
self.assertEqual(len(rib[0]["paths"]), self.SEND_MAX)
for path in rib[0]['paths']:
if not path["aspath"]:
self.assertTrue(2 <= len(path["aspath"]) <= self.INSTALLED_PATHS)
assert_several_times(f)
if __name__ == '__main__':
output = local("which docker 2>&1 > /dev/null ; echo $?", capture=True)
if int(output) != 0:
print("docker not found")
sys.exit(1)
nose.main(argv=sys.argv, addplugins=[OptionParser()],
defaultTest=sys.argv[0])
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