def _create_bgp_speaker_for_vlan(self, bgp_speaker_key, bgp_router):
"""Set up BGP speaker for an individual VLAN if required.
Args:
bgp_speaker_key (BgpSpeakerKey): BGP speaker key.
bgp_router: Router.
Returns:
ryu.services.protocols.bgp.bgpspeaker.BGPSpeaker: BGP speaker.
"""
route_handler = lambda x: self._bgp_route_handler(x, bgp_speaker_key)
server_address = sorted(bgp_router.bgp_server_addresses_by_ipv(bgp_speaker_key.ipv))[0]
beka = Beka(
local_address=str(server_address),
bgp_port=bgp_router.bgp_port(),
local_as=bgp_router.bgp_as(),
router_id=bgp_router.bgp_routerid(),
peer_up_handler=self._bgp_up_handler,
peer_down_handler=self._bgp_down_handler,
route_handler=route_handler,
error_handler=self.logger.warning)
for ip_dst, ip_gw in self._vlan_prefixes_by_ipv(bgp_router.bgp_vlan(), bgp_speaker_key.ipv):
beka.add_route(prefix=str(ip_dst), next_hop=str(ip_gw))
for bgp_neighbor_address in bgp_router.bgp_neighbor_addresses_by_ipv(bgp_speaker_key.ipv):
beka.add_neighbor(
connect_mode=bgp_router.bgp_connect_mode(),
peer_ip=str(bgp_neighbor_address),
peer_as=bgp_router.bgp_neighbor_as())
self.thread = hub.spawn(beka.run)
self.thread.name = 'beka'
return beka
def _create_bgp_speaker_for_vlan(self, vlan, bgp_speaker_key):
"""Set up BGP speaker for an individual VLAN if required.
Args:
vlan (valve VLAN): VLAN for BGP speaker.
Returns:
ryu.services.protocols.bgp.bgpspeaker.BGPSpeaker: BGP speaker.
"""
route_handler = lambda x: self._bgp_route_handler(x, bgp_speaker_key)
server_address = sorted(vlan.bgp_server_addresses_by_ipv(bgp_speaker_key.ipv))[0]
beka = Beka(
local_address=str(server_address),
bgp_port=vlan.bgp_port,
local_as=vlan.bgp_as,
router_id=vlan.bgp_routerid,
peer_up_handler=self._bgp_up_handler,
peer_down_handler=self._bgp_down_handler,
route_handler=route_handler,
error_handler=self.logger.warning)
for ip_dst, ip_gw in self._vlan_prefixes_by_ipv(vlan, bgp_speaker_key.ipv):
beka.add_route(prefix=str(ip_dst), next_hop=str(ip_gw))
for bgp_neighbor_address in vlan.bgp_neighbor_addresses_by_ipv(bgp_speaker_key.ipv):
beka.add_neighbor(
connect_mode=vlan.bgp_connect_mode,
peer_ip=str(bgp_neighbor_address),
peer_as=vlan.bgp_neighbor_as)
hub.spawn(beka.run)
return beka
def setUp(self):
self.beka = Beka(
local_address=None,
bgp_port=None,
local_as=None,
router_id=None,
peer_up_handler=None,
peer_down_handler=None,
route_handler=None,
error_handler=None
)
class BekaTestCase(unittest.TestCase):
def setUp(self):
self.beka = Beka(
local_address=None,
bgp_port=None,
local_as=None,
router_id=None,
peer_up_handler=None,
peer_down_handler=None,
route_handler=None,
error_handler=None
)
def test_add_neighbor_must_be_passive(self):
with self.assertRaises(ValueError) as context:
self.beka.add_neighbor("active", "10.1.1.1", 65004)
self.assertTrue("Only passive BGP supported" in str(context.exception))
def test_add_neighbor_cannot_add_twice(self):
self.assertFalse(self.beka.peers)
self.beka.add_neighbor("passive", "10.1.1.1", 65004)
self.assertTrue(self.beka.peers)
self.assertEqual(self.beka.peers["10.1.1.1"], {
"peer_ip": "10.1.1.1",
"peer_as": 65004
})
with self.assertRaises(ValueError) as context:
self.beka.add_neighbor("passive", "10.1.1.1", 65004)
self.assertTrue("Peer already added" in str(context.exception))
def test_add_route_adds_route(self):
self.beka.add_route("10.1.0.0/16", "192.168.1.3")
self.assertEqual(self.beka.routes_to_advertise[0],
RouteAddition(
prefix=IPPrefix.from_string("10.1.0.0/16"),
next_hop=IPAddress.from_string("192.168.1.3"),
as_path="",
origin="IGP"
)
)
def test_listening_on(self):
beka = Beka(
local_address='1.2.3.4',
bgp_port=12345,
local_as=23456,
router_id='4.3.2.1',
peer_up_handler=None,
peer_down_handler=None,
route_handler=None,
error_handler=None
)
self.assertTrue(beka.listening_on('1.2.3.4', 12345))
self.assertFalse(beka.listening_on('1.2.3.4', 23456))
self.assertFalse(beka.listening_on('4.3.2.1', 12345))
self.assertFalse(beka.listening_on('4.3.2.1', 23456))
self.assertFalse(beka.listening_on('8.8.8.8', 53))
def _create_bgp_speaker_for_vlan(self, vlan, bgp_speaker_key):
"""Set up BGP speaker for an individual VLAN if required.
Args:
vlan (valve VLAN): VLAN for BGP speaker.
Returns:
ryu.services.protocols.bgp.bgpspeaker.BGPSpeaker: BGP speaker.
"""
route_handler = lambda x: self._bgp_route_handler(x, bgp_speaker_key)
server_address = sorted(
vlan.bgp_server_addresses_by_ipv(bgp_speaker_key.ipv))[0]
beka = Beka(local_address=str(server_address),
bgp_port=vlan.bgp_port,
local_as=vlan.bgp_as,
router_id=vlan.bgp_routerid,
peer_up_handler=self._bgp_up_handler,
peer_down_handler=self._bgp_down_handler,
route_handler=route_handler,
error_handler=self.logger.warning)
for ip_dst, ip_gw in self._vlan_prefixes_by_ipv(
vlan, bgp_speaker_key.ipv):
beka.add_route(prefix=str(ip_dst), next_hop=str(ip_gw))
for bgp_neighbor_address in vlan.bgp_neighbor_addresses_by_ipv(
bgp_speaker_key.ipv):
beka.add_neighbor(connect_mode=vlan.bgp_connect_mode,
peer_ip=str(bgp_neighbor_address),
peer_as=vlan.bgp_neighbor_as)
hub.spawn(beka.run)
return beka
def run(self):
signal.signal(signal.SIGINT, self.signal_handler)
pool = GreenPool()
with open("beka.yaml") as file:
config = yaml.load(file.read())
for router in config["routers"]:
printmsg("Starting Beka on %s" % router["local_address"])
beka = Beka(
router["local_address"],
router["bgp_port"],
router["local_as"],
router["router_id"],
self.peer_up_handler,
self.peer_down_handler,
self.route_handler,
self.error_handler
)
for peer in router["peers"]:
beka.add_neighbor(
"passive",
peer["peer_ip"],
peer["peer_as"],
)
if "routes" in router:
for route in router["routes"]:
beka.add_route(
route["prefix"],
route["next_hop"]
)
self.bekas.append(beka)
pool.spawn_n(beka.run)
pool.waitall()
printmsg("All greenlets gone, exiting")
def _create_bgp_speaker_for_vlan(self, bgp_speaker_key, bgp_router):
"""Set up BGP speaker for an individual VLAN if required.
Args:
bgp_speaker_key (BgpSpeakerKey): BGP speaker key.
bgp_router: Router.
Returns:
ryu.services.protocols.bgp.bgpspeaker.BGPSpeaker: BGP speaker.
"""
server_address = sorted(
bgp_router.bgp_server_addresses_by_ipv(bgp_speaker_key.ipv))[0]
beka = Beka(local_address=str(server_address),
bgp_port=bgp_router.bgp_port(),
local_as=bgp_router.bgp_as(),
router_id=bgp_router.bgp_routerid(),
peer_up_handler=self._bgp_up_handler,
peer_down_handler=self._bgp_down_handler,
route_handler=lambda x: self._bgp_route_handler(
x, bgp_speaker_key),
error_handler=self.logger.warning)
for ip_dst, ip_gw in self._vlan_prefixes_by_ipv(
bgp_router.bgp_vlan(), bgp_speaker_key.ipv):
beka.add_route(prefix=str(ip_dst), next_hop=str(ip_gw))
for bgp_neighbor_address in bgp_router.bgp_neighbor_addresses_by_ipv(
bgp_speaker_key.ipv):
beka.add_neighbor(connect_mode=bgp_router.bgp_connect_mode(),
peer_ip=str(bgp_neighbor_address),
peer_as=bgp_router.bgp_neighbor_as())
self.thread = hub.spawn(beka.run)
self.thread.name = 'beka'
return beka
def test_listening_on(self):
beka = Beka(
local_address='1.2.3.4',
bgp_port=12345,
local_as=23456,
router_id='4.3.2.1',
peer_up_handler=None,
peer_down_handler=None,
route_handler=None,
error_handler=None
)
self.assertTrue(beka.listening_on('1.2.3.4', 12345))
self.assertFalse(beka.listening_on('1.2.3.4', 23456))
self.assertFalse(beka.listening_on('4.3.2.1', 12345))
self.assertFalse(beka.listening_on('4.3.2.1', 23456))
self.assertFalse(beka.listening_on('8.8.8.8', 53))
def _create_bgp_speaker_for_vlan(self, vlan, dp_id, vlan_vid, ipv):
"""Set up BGP speaker for an individual VLAN if required.
Args:
vlan (valve VLAN): VLAN for BGP speaker.
dp_id (int): Datapath ID for BGP speaker.
vlan_vid (vlan_vid): VLAN VID for BGP speaker.
Returns:
ryu.services.protocols.bgp.bgpspeaker.BGPSpeaker: BGP speaker.
"""
handler = lambda x: self._bgp_route_handler(x, dp_id, vlan_vid)
if len(vlan.bgp_server_addresses_by_ipv(ipv)) > 1:
self.logger.warning(
'Only one server per IPv per vlan supported')
server_address = sorted(vlan.bgp_server_addresses_by_ipv(ipv))[0]
beka = Beka(
local_address=str(server_address),
bgp_port=vlan.bgp_port,
local_as=vlan.bgp_as,
router_id=vlan.bgp_routerid,
peer_up_handler=self._bgp_up_handler,
peer_down_handler=self._bgp_down_handler,
route_handler=handler,
error_handler=self.logger.warning
)
for ip_dst, ip_gw in self._vlan_prefixes_by_ipv(vlan, ipv):
beka.add_route(prefix=str(ip_dst), next_hop=str(ip_gw))
for bgp_neighbor_address in vlan.bgp_neighbor_addresses_by_ipv(ipv):
beka.add_neighbor(
connect_mode="passive",
peer_ip=str(bgp_neighbor_address),
peer_as=vlan.bgp_neighbor_as
)
hub.spawn(beka.run)
return beka
