# 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 unittest from fabric.api import local from lib.gobgp import * from lib.quagga import * import sys import os import time import nose from noseplugin import OptionParser, parser_option from itertools import combinations class GoBGPTestBase(unittest.TestCase): @classmethod def setUpClass(cls): gobgp_ctn_image_name = parser_option.gobgp_image 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=65000, router_id='192.168.0.2') q2 = QuaggaBGPContainer(name='q2', asn=65000, router_id='192.168.0.3') qs = [q1, q2] ctns = [g1, q1, q2] # advertise a route from q1, q2, q3 for idx, c in enumerate(qs): route = '10.0.{0}.0/24'.format(idx+1) c.add_route(route) initial_wait_time = max(ctn.run() for ctn in ctns) time.sleep(initial_wait_time) br01 = Bridge(name='br01', subnet='192.168.10.0/24') [br01.addif(ctn) for ctn in ctns] # ibgp peer. loop topology for a, b in combinations(ctns, 2): a.add_peer(b) b.add_peer(a) cls.gobgp = g1 cls.quaggas = {'q1': q1, 'q2': q2} cls.bridges = {'br01': br01} # test each neighbor state is turned establish def test_01_neighbor_established(self): for q in self.quaggas.itervalues(): self.gobgp.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=q) def test_02_check_gobgp_global_rib(self): for q in self.quaggas.itervalues(): # paths expected to exist in gobgp's global rib routes = q.routes.keys() timeout = 120 interval = 1 count = 0 while True: # gobgp's global rib 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') def test_03_check_gobgp_adj_rib_out(self): for q in self.quaggas.itervalues(): paths = self.gobgp.get_adj_rib_out(q) # bgp speaker mustn't forward iBGP routes to iBGP peers self.assertTrue(len(paths) == 0) def test_04_originate_path(self): self.gobgp.add_route('10.10.0.0/24') dst = self.gobgp.get_global_rib('10.10.0.0/24') self.assertTrue(len(dst) == 1) self.assertTrue(len(dst[0]['paths']) == 1) path = dst[0]['paths'][0] self.assertTrue(path['nexthop'] == '0.0.0.0') self.assertTrue(len(self.gobgp._get_as_path(path)) == 0) def test_05_check_gobgp_adj_rib_out(self): for q in self.quaggas.itervalues(): paths = self.gobgp.get_adj_rib_out(q) self.assertTrue(len(paths) == len(self.gobgp.routes)) path = paths[0] self.assertTrue(path['nlri']['prefix'] == '10.10.0.0/24') peer_info = self.gobgp.peers[q] local_addr = peer_info['local_addr'].split('/')[0] self.assertTrue(path['nexthop'] == local_addr) self.assertTrue(len(self.gobgp._get_as_path(path)) == 0) # check routes are properly advertised to all BGP speaker def test_06_check_quagga_global_rib(self): interval = 1 timeout = int(120/interval) for q in self.quaggas.itervalues(): done = False for _ in range(timeout): if done: break global_rib = q.get_global_rib() # quagga's global_rib must have two routes at least, # a self-generated route and a gobgp-generated route if len(global_rib) < len(q.routes) + len(self.gobgp.routes): time.sleep(interval) continue peer_info = self.gobgp.peers[q] local_addr = peer_info['local_addr'].split('/')[0] for r in self.gobgp.routes.keys(): self.assertTrue(r in (p['prefix'] for p in global_rib)) for rr in global_rib: if rr['prefix'] == r: self.assertTrue(rr['nexthop'] == local_addr) for r in q.routes.keys(): self.assertTrue(r in (p['prefix'] for p in global_rib)) for rr in global_rib: if rr['prefix'] == r: self.assertTrue(rr['nexthop'] == '0.0.0.0') done = True if done: continue # should not reach here self.assertTrue(False) def test_07_add_ebgp_peer(self): q3 = QuaggaBGPContainer(name='q3', asn=65001, router_id='192.168.0.4') self.quaggas['q3'] = q3 q3.add_route('10.0.3.0/24') initial_wait_time = q3.run() time.sleep(initial_wait_time) self.bridges['br01'].addif(q3) self.gobgp.add_peer(q3) q3.add_peer(self.gobgp) self.gobgp.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=q3) def test_08_check_global_rib(self): self.test_02_check_gobgp_global_rib() def test_09_check_gobgp_ebgp_adj_rib_out(self): q1 = self.quaggas['q1'] q2 = self.quaggas['q2'] q3 = self.quaggas['q3'] paths = self.gobgp.get_adj_rib_out(q3) total_len = len(q1.routes) + len(q2.routes) + len(self.gobgp.routes) assert(len(paths) == total_len) for path in paths: peer_info = self.gobgp.peers[q3] local_addr = peer_info['local_addr'].split('/')[0] self.assertTrue(path['nexthop'] == local_addr) self.assertTrue(self.gobgp._get_as_path(path) == [self.gobgp.asn]) def test_10_check_gobgp_ibgp_adj_rib_out(self): q1 = self.quaggas['q1'] q3 = self.quaggas['q3'] peer_info = self.gobgp.peers[q3] neigh_addr = peer_info['neigh_addr'].split('/')[0] for prefix in q3.routes.iterkeys(): paths = self.gobgp.get_adj_rib_out(q1, prefix) self.assertTrue(len(paths) == 1) path = paths[0] # bgp router mustn't change nexthop of routes from eBGP peers # which are sent to iBGP peers self.assertTrue(path['nexthop'] == neigh_addr) # bgp router mustn't change aspath of routes from eBGP peers # which are sent to iBGP peers self.assertTrue(self.gobgp._get_as_path(path) == [q3.asn]) if __name__ == '__main__': if os.geteuid() is not 0: print "you are not root." sys.exit(1) 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])