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# Copyright (C) 2013 Nippon Telegraph and Telephone Corporation.
# Copyright (C) 2013 YAMAMOTO Takashi <yamamoto at valinux co jp>
#
# 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 nose.tools import eq_
from nose.tools import ok_
from ryu.lib.packet import bgp
from ryu.lib.packet import afi
from ryu.lib.packet import safi
class Test_bgp(unittest.TestCase):
""" Test case for ryu.lib.packet.bgp
"""
def setUp(self):
pass
def tearDown(self):
pass
def test_open1(self):
msg = bgp.BGPOpen(my_as=30000, bgp_identifier='192.0.2.1')
binmsg = msg.serialize()
msg2, rest = bgp.BGPMessage.parser(binmsg)
eq_(str(msg), str(msg2))
eq_(len(msg), 29)
eq_(rest, '')
def test_open2(self):
opt_param = [bgp.BGPOptParamCapabilityUnknown(cap_code=200,
cap_value='hoge'),
bgp.BGPOptParamCapabilityRouteRefresh(),
bgp.BGPOptParamCapabilityFourOctetAsNumber(
as_number=1234567),
bgp.BGPOptParamUnknown(type_=99, value='fuga')]
msg = bgp.BGPOpen(my_as=30000, bgp_identifier='192.0.2.2',
opt_param=opt_param)
binmsg = msg.serialize()
msg2, rest = bgp.BGPMessage.parser(binmsg)
eq_(str(msg), str(msg2))
ok_(len(msg) > 29)
eq_(rest, '')
def test_update1(self):
msg = bgp.BGPUpdate()
binmsg = msg.serialize()
msg2, rest = bgp.BGPMessage.parser(binmsg)
eq_(str(msg), str(msg2))
eq_(len(msg), 23)
eq_(rest, '')
def test_update2(self):
withdrawn_routes = [bgp.BGPWithdrawnRoute(length=0,
ip_addr='192.0.2.13'),
bgp.BGPWithdrawnRoute(length=1,
ip_addr='192.0.2.13'),
bgp.BGPWithdrawnRoute(length=3,
ip_addr='192.0.2.13'),
bgp.BGPWithdrawnRoute(length=7,
ip_addr='192.0.2.13'),
bgp.BGPWithdrawnRoute(length=32,
ip_addr='192.0.2.13')]
path_attributes = [
bgp.BGPPathAttributeOrigin(value=1),
bgp.BGPPathAttributeAsPath(value=[[1000], set([1001, 1002]),
[1003, 1004]]),
bgp.BGPPathAttributeNextHop(value='192.0.2.199'),
bgp.BGPPathAttributeMultiExitDisc(value=2000000000),
bgp.BGPPathAttributeLocalPref(value=1000000000),
bgp.BGPPathAttributeAtomicAggregate(),
bgp.BGPPathAttributeAggregator(as_number=40000,
ip_addr='192.0.2.99'),
bgp.BGPPathAttributeAs4Path(value=[[1000000], set([1000001, 1002]),
[1003, 1000004]]),
bgp.BGPPathAttributeAs4Aggregator(as_number=100040000,
ip_addr='192.0.2.99'),
bgp.BGPPathAttributeUnknown(flags=0, type_=100, value=300*'bar')
]
nlri = [
bgp.BGPNLRI(length=24, ip_addr='203.0.113.1'),
bgp.BGPNLRI(length=16, ip_addr='203.0.113.0')
]
msg = bgp.BGPUpdate(withdrawn_routes=withdrawn_routes,
path_attributes=path_attributes,
nlri=nlri)
binmsg = msg.serialize()
msg2, rest = bgp.BGPMessage.parser(binmsg)
eq_(str(msg), str(msg2))
ok_(len(msg) > 23)
eq_(rest, '')
def test_keepalive(self):
msg = bgp.BGPKeepAlive()
binmsg = msg.serialize()
msg2, rest = bgp.BGPMessage.parser(binmsg)
eq_(str(msg), str(msg2))
eq_(len(msg), 19)
eq_(rest, '')
def test_notification(self):
data = "hoge"
msg = bgp.BGPNotification(error_code=1, error_subcode=2, data=data)
binmsg = msg.serialize()
msg2, rest = bgp.BGPMessage.parser(binmsg)
eq_(str(msg), str(msg2))
eq_(len(msg), 21 + len(data))
eq_(rest, '')
def test_route_refresh(self):
msg = bgp.BGPRouteRefresh(afi=afi.IP, safi=safi.MPLS_VPN)
binmsg = msg.serialize()
msg2, rest = bgp.BGPMessage.parser(binmsg)
eq_(str(msg), str(msg2))
eq_(len(msg), 23)
eq_(rest, '')
def test_stream_parser(self):
msgs = [
bgp.BGPNotification(error_code=1, error_subcode=2, data="foo"),
bgp.BGPNotification(error_code=3, error_subcode=4, data="bar"),
bgp.BGPNotification(error_code=5, error_subcode=6, data="baz"),
]
binmsgs = ''.join([bytes(msg.serialize()) for msg in msgs])
sp = bgp.StreamParser()
results = []
for b in binmsgs:
for m in sp.parse(b):
results.append(m)
eq_(str(results), str(msgs))
def test_parser(self):
files = [
'bgp4-open',
# commented out because
# 1. we don't support 32 bit AS numbers in AS_PATH
# 2. quagga always uses EXTENDED for AS_PATH
# 'bgp4-update',
'bgp4-keepalive',
]
dir = '../packet_data/bgp4/'
for f in files:
print 'testing', f
binmsg = open(dir + f).read()
msg, rest = bgp.BGPMessage.parser(binmsg)
binmsg2 = msg.serialize()
eq_(binmsg, binmsg2)
eq_(rest, '')
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