# Copyright (C) 2015 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 json import sys import time import unittest import nose from lib.noseplugin import OptionParser, parser_option from lib import base from lib.base import ( BGP_FSM_IDLE, BGP_FSM_ACTIVE, BGP_FSM_ESTABLISHED, BGP_ATTR_TYPE_MULTI_EXIT_DISC, BGP_ATTR_TYPE_LOCAL_PREF, wait_for_completion, assert_several_times, local, ) from lib.gobgp import ( GoBGPContainer, extract_path_attribute, ) from lib.quagga import QuaggaBGPContainer from lib.exabgp import ExaBGPContainer class GoBGPTestBase(unittest.TestCase): @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) q1 = QuaggaBGPContainer(name='q1', asn=65001, router_id='192.168.0.2') q2 = QuaggaBGPContainer(name='q2', asn=65002, router_id='192.168.0.3') q3 = QuaggaBGPContainer(name='q3', asn=65003, router_id='192.168.0.4') qs = [q1, q2, q3] ctns = [g1, q1, q2, q3] initial_wait_time = max(ctn.run() for ctn in ctns) time.sleep(initial_wait_time) for q in qs: g1.add_peer(q, passwd='passwd') q.add_peer(g1, passwd='passwd', passive=True) # advertise a route from q1, q2, q3 for idx, q in enumerate(qs): route = '10.0.{0}.0/24'.format(idx + 1) q.add_route(route) cls.gobgp = g1 cls.quaggas = {'q1': q1, 'q2': q2, 'q3': q3} # test each neighbor state is turned establish def test_01_neighbor_established(self): for q in self.quaggas.values(): self.gobgp.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=q) def test_02_check_gobgp_global_rib(self): for q in self.quaggas.values(): # paths expected to exist in gobgp's global rib routes = list(q.routes.keys()) timeout = 120 interval = 1 count = 0 while True: # gobgp's global rib state = self.gobgp.get_neighbor_state(q) self.assertEqual(state, BGP_FSM_ESTABLISHED) global_rib = [p['prefix'] for p in self.gobgp.get_global_rib()] for p in global_rib: if p in routes: routes.remove(p) if len(routes) == 0: break time.sleep(interval) count += interval if count >= timeout: raise Exception('timeout') # check gobgp properly add it's own asn to aspath def test_03_check_gobgp_adj_out_rib(self): for q in self.quaggas.values(): for path in self.gobgp.get_adj_rib_out(q): asns = path['aspath'] self.assertTrue(self.gobgp.asn in asns) # check routes are properly advertised to all BGP speaker def test_04_check_quagga_global_rib(self): interval = 1 timeout = int(120 / interval) for q in self.quaggas.values(): done = False for _ in range(timeout): if done: break global_rib = q.get_global_rib() global_rib = [p['prefix'] for p in global_rib] if len(global_rib) < len(self.quaggas): time.sleep(interval) continue self.assertEqual(len(global_rib), len(self.quaggas)) for c in self.quaggas.values(): for r in c.routes: self.assertTrue(r in global_rib) done = True if done: continue # should not reach here raise AssertionError def test_05_add_quagga(self): q4 = QuaggaBGPContainer(name='q4', asn=65004, router_id='192.168.0.5') self.quaggas['q4'] = q4 initial_wait_time = q4.run() time.sleep(initial_wait_time) self.gobgp.add_peer(q4) q4.add_peer(self.gobgp) q4.add_route('10.0.4.0/24') self.gobgp.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=q4) def test_06_check_global_rib(self): self.test_02_check_gobgp_global_rib() self.test_04_check_quagga_global_rib() def test_07_stop_one_quagga(self): g1 = self.gobgp q4 = self.quaggas['q4'] q4.stop() self.gobgp.wait_for(expected_state=BGP_FSM_ACTIVE, peer=q4) g1.del_peer(q4) del self.quaggas['q4'] # check gobgp properly send withdrawal message with q4's route def test_08_check_global_rib(self): self.test_02_check_gobgp_global_rib() self.test_04_check_quagga_global_rib() def test_09_add_distant_relative(self): q1 = self.quaggas['q1'] q2 = self.quaggas['q2'] q3 = self.quaggas['q3'] q5 = QuaggaBGPContainer(name='q5', asn=65005, router_id='192.168.0.6') initial_wait_time = q5.run() time.sleep(initial_wait_time) for q in [q2, q3]: q5.add_peer(q) q.add_peer(q5) med200 = {'name': 'med200', 'type': 'permit', 'match': '0.0.0.0/0', 'med': 200} q2.add_policy(med200, self.gobgp, 'out') med100 = {'name': 'med100', 'type': 'permit', 'match': '0.0.0.0/0', 'med': 100} q3.add_policy(med100, self.gobgp, 'out') q5.add_route('10.0.6.0/24') self.gobgp.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=q2) self.gobgp.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=q3) q2.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=q5) q3.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=q5) timeout = 120 interval = 1 count = 0 while True: paths = self.gobgp.get_adj_rib_out(q1, '10.0.6.0/24') if len(paths) > 0: path = paths[0] print("{0}'s nexthop is {1}".format(path['nlri']['prefix'], path['nexthop'])) n_addrs = [i[1].split('/')[0] for i in self.gobgp.ip_addrs] if path['nexthop'] in n_addrs: break time.sleep(interval) count += interval if count >= timeout: raise Exception('timeout') def test_10_originate_path(self): self.gobgp.add_route('10.10.0.0/24') dst = self.gobgp.get_global_rib('10.10.0.0/24') self.assertEqual(len(dst), 1) self.assertEqual(len(dst[0]['paths']), 1) path = dst[0]['paths'][0] self.assertEqual(path['nexthop'], '0.0.0.0') self.assertEqual(len(path['aspath']), 0) def test_11_check_adj_rib_out(self): for q in self.quaggas.values(): paths = self.gobgp.get_adj_rib_out(q, '10.10.0.0/24') self.assertEqual(len(paths), 1) path = paths[0] peer_info = self.gobgp.peers[q] local_addr = peer_info['local_addr'].split('/')[0] self.assertEqual(path['nexthop'], local_addr) self.assertEqual(path['aspath'], [self.gobgp.asn]) def test_12_disable_peer(self): q1 = self.quaggas['q1'] self.gobgp.disable_peer(q1) self.gobgp.wait_for(expected_state=BGP_FSM_IDLE, peer=q1) time.sleep(3) for route in q1.routes.keys(): dst = self.gobgp.get_global_rib(route) self.assertEqual(len(dst), 0) for q in self.quaggas.values(): if q is q1: continue paths = self.gobgp.get_adj_rib_out(q, route) self.assertEqual(len(paths), 0) def test_13_enable_peer(self): q1 = self.quaggas['q1'] self.gobgp.enable_peer(q1) self.gobgp.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=q1) def test_14_check_adj_rib_out(self): self.test_11_check_adj_rib_out() def test_15_check_active_connection(self): g1 = self.gobgp g2 = GoBGPContainer(name='g2', asn=65000, router_id='192.168.0.7', ctn_image_name=self.gobgp.image, log_level=parser_option.gobgp_log_level) time.sleep(g2.run()) self.quaggas['g2'] = g2 g2.add_peer(g1, passive=True) g1.add_peer(g2) g1.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=g2) def test_16_check_local_pref_and_med_handling(self): g1 = self.gobgp g1.add_route('10.20.0.0/24', local_pref=1000, med=2000) # iBGP peer g2 = self.quaggas['g2'] paths = g2.get_global_rib('10.20.0.0/24') self.assertEqual(len(paths), 1) self.assertEqual(len(paths[0]['paths']), 1) path = paths[0]['paths'][0] local_pref = extract_path_attribute(path, BGP_ATTR_TYPE_LOCAL_PREF) self.assertEqual(local_pref['value'], 1000) med = extract_path_attribute(path, BGP_ATTR_TYPE_MULTI_EXIT_DISC) self.assertEqual(med['metric'], 2000) # eBGP peer q1 = self.quaggas['q1'] paths = q1.get_global_rib('10.20.0.0/24') self.assertEqual(len(paths), 1) path = paths[0] local_pref = extract_path_attribute(path, BGP_ATTR_TYPE_LOCAL_PREF) # local_pref's default value is 100 self.assertEqual(local_pref['value'], 100) med = extract_path_attribute(path, BGP_ATTR_TYPE_MULTI_EXIT_DISC) self.assertEqual(med['metric'], 2000) def test_17_check_shutdown(self): g1 = self.gobgp q1 = self.quaggas['q1'] q2 = self.quaggas['q2'] q3 = self.quaggas['q3'] q2.add_route('20.0.0.0/24') q3.add_route('20.0.0.0/24') self.test_01_neighbor_established() self.test_02_check_gobgp_global_rib() paths = q1.get_global_rib('20.0.0.0/24') self.assertEqual(len(paths), 1) n_addrs = [i[1].split('/')[0] for i in self.gobgp.ip_addrs] self.assertIn(paths[0]['nexthop'], n_addrs) q3.stop() self.gobgp.wait_for(expected_state=BGP_FSM_ACTIVE, peer=q3) def f(): paths = q1.get_global_rib('20.0.0.0/24') self.assertEqual(len(paths), 1) self.assertIn(paths[0]['nexthop'], n_addrs) assert_several_times(f) g1.del_peer(q3) del self.quaggas['q3'] def test_18_check_withdrawal(self): g1 = self.gobgp q1 = self.quaggas['q1'] q2 = self.quaggas['q2'] g1.add_route('30.0.0.0/24') q1.add_route('30.0.0.0/24') self.test_01_neighbor_established() self.test_02_check_gobgp_global_rib() paths = g1.get_adj_rib_out(q1, '30.0.0.0/24') self.assertEqual(len(paths), 1) self.assertNotIn('source-id', paths[0]) paths = g1.get_adj_rib_out(q2, '30.0.0.0/24') self.assertEqual(len(paths), 1) self.assertNotIn('source-id', paths[0]) g1.local('gobgp global rib del 30.0.0.0/24') def f(): paths = g1.get_adj_rib_out(q1, '30.0.0.0/24') self.assertEqual(len(paths), 0) paths = g1.get_adj_rib_out(q2, '30.0.0.0/24') self.assertEqual(len(paths), 1) self.assertEqual(paths[0]['source-id'], '192.168.0.2') assert_several_times(f) def test_19_check_grpc_add_neighbor(self): g1 = self.gobgp e1 = ExaBGPContainer(name='e1', asn=65000, router_id='192.168.0.7') time.sleep(e1.run()) e1.add_peer(g1) self.quaggas['e1'] = e1 n = e1.peers[g1]['local_addr'].split('/')[0] g1.local('gobgp n add {0} as 65000'.format(n)) g1.add_peer(e1, reload_config=False) g1.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=e1) def test_20_check_grpc_del_neighbor(self): g1 = self.gobgp e1 = self.quaggas['e1'] n = e1.peers[g1]['local_addr'].split('/')[0] g1.local('gobgp n del {0}'.format(n)) g1.del_peer(e1, reload_config=False) def test_21_check_withdrawal_2(self): g1 = self.gobgp g2 = self.quaggas['g2'] prefix = '40.10.0.0/24' g1.add_route(prefix) wait_for_completion(lambda: len(g1.get_global_rib(prefix)) == 1) wait_for_completion(lambda: len(g2.get_global_rib(prefix)) == 1) r = g2.local('gobgp monitor global rib -j', stream=True, tty=False) g1.local('gobgp global rib del 40.10.0.0/24') del g1.routes[prefix] wait_for_completion(lambda: len(g1.get_global_rib(prefix)) == 0) wait_for_completion(lambda: len(g2.get_global_rib(prefix)) == 0) ret = json.loads(next(r)) self.assertEqual(ret[0]['nlri']['prefix'], prefix) self.assertTrue('withdrawal' in ret[0]) def test_22_check_cli_sorted(self): g1 = self.gobgp cnt = 0 def next_prefix(): for i in range(100, 105): for j in range(100, 105): yield '{0}.{1}.0.0/24'.format(i, j) for p in next_prefix(): g1.local('gobgp global rib add {0}'.format(p)) cnt += 1 cnt2 = 0 g = next_prefix() n = next(g) for path in g1.local("gobgp global rib", capture=True).split('\n')[1:]: if [elem for elem in path.split(' ') if elem != ''][1] == n: try: cnt2 += 1 n = next(g) except StopIteration: break self.assertEqual(cnt, cnt2) def test_23_check_withdrawal3(self): gobgp_ctn_image_name = parser_option.gobgp_image g1 = self.gobgp g3 = GoBGPContainer(name='g3', asn=65006, router_id='192.168.0.8', ctn_image_name=gobgp_ctn_image_name, log_level=parser_option.gobgp_log_level) g4 = GoBGPContainer(name='g4', asn=65007, router_id='192.168.0.9', ctn_image_name=gobgp_ctn_image_name, log_level=parser_option.gobgp_log_level) initial_wait_time = max(ctn.run() for ctn in [g3, g4]) time.sleep(initial_wait_time) self.quaggas = {'g3': g3, 'g4': g4} g3.local('gobgp global rib add 50.0.0.0/24') g1.add_peer(g3, passive=True) g3.add_peer(g1) g1.add_peer(g4, passive=True) g4.add_peer(g1) self.test_01_neighbor_established() self.test_02_check_gobgp_global_rib() g4.local('gobgp global rib add 50.0.0.0/24 med 10') paths = g1.get_adj_rib_out(g3, '50.0.0.0/24') self.assertEqual(len(paths), 0) paths = g1.get_adj_rib_out(g4, '50.0.0.0/24') self.assertEqual(len(paths), 1) self.assertEqual(paths[0]['source-id'], '192.168.0.8') g3.local('gobgp global rib del 50.0.0.0/24') paths = g1.get_adj_rib_out(g3, '50.0.0.0/24') self.assertEqual(len(paths), 1) self.assertEqual(paths[0]['source-id'], '192.168.0.9') paths = g1.get_adj_rib_out(g4, '50.0.0.0/24') self.assertEqual(len(paths), 0) if __name__ == '__main__': output = local("which docker 2>&1 > /dev/null ; echo $?", capture=True) if int(output) is not 0: print("docker not found") sys.exit(1) nose.main(argv=sys.argv, addplugins=[OptionParser()], defaultTest=sys.argv[0])