# 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 import base
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
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=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
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(path['as_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(path['as_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(path['as_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(path['as_path'] == [q3.asn])
# disable ebgp peer, check ebgp routes are removed
def test_11_disable_ebgp_peer(self):
q3 = self.quaggas['q3']
self.gobgp.disable_peer(q3)
del self.quaggas['q3']
self.gobgp.wait_for(expected_state=BGP_FSM_IDLE, peer=q3)
for route in q3.routes.iterkeys():
dst = self.gobgp.get_global_rib(route)
self.assertTrue(len(dst) == 0)
for q in self.quaggas.itervalues():
paths = self.gobgp.get_adj_rib_out(q)
# only gobgp's locally generated routes must exists
print paths
self.assertTrue(len(paths) == len(self.gobgp.routes))
def test_12_disable_ibgp_peer(self):
q1 = self.quaggas['q1']
self.gobgp.disable_peer(q1)
self.gobgp.wait_for(expected_state=BGP_FSM_IDLE, peer=q1)
for route in q1.routes.iterkeys():
dst = self.gobgp.get_global_rib(route)
self.assertTrue(len(dst) == 0)
def test_13_enable_ibgp_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_gobgp_adj_rib_out(self):
for q in self.quaggas.itervalues():
paths = self.gobgp.get_adj_rib_out(q)
# only gobgp's locally generated routes must exists
self.assertTrue(len(paths) == len(self.gobgp.routes))
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])