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nlri_tests.py
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#!/usr/bin/env python3
# encoding: utf-8
"""
open.py
Created by Thomas Morin, Orange on 2015-07-10.
Copyright (c) 2009-2015 Orange. All rights reserved.
License: 3-clause BSD. (See the COPYRIGHT file)
"""
import unittest
from exabgp.reactor.protocol import AFI, SAFI
from exabgp.bgp.message.update import Attributes
from exabgp.bgp.message.update.attribute.localpref import LocalPreference
from exabgp.bgp.message.update.attribute.community.extended.communities import (
ExtendedCommunities,
)
from exabgp.bgp.message.update.attribute.community.extended import (
RouteTargetASN2Number as RouteTarget,
)
from exabgp.bgp.message.update.attribute.community.extended.encapsulation import (
Encapsulation,
)
from exabgp.bgp.message.update.attribute.community.extended import RTRecord
from exabgp.bgp.message.update.nlri.ipvpn import IPVPN
from exabgp.bgp.message.update.nlri.rtc import RTC
from exabgp.bgp.message.update.nlri.evpn.mac import MAC as EVPNMAC
from exabgp.bgp.message.update.nlri.evpn.multicast import Multicast as EVPNMulticast
from exabgp.bgp.message.update.nlri.evpn.prefix import Prefix as EVPNPrefix
from exabgp.bgp.message.update.nlri.evpn.nlri import EVPN
from exabgp.bgp.message.update.nlri.mvpn.nlri import MVPN
from exabgp.bgp.message.update.nlri.mvpn.sourcead import SourceAD as MVPN_SourceAD
from exabgp.bgp.message.update.nlri.mvpn.sourcejoin import SourceJoin as MVPN_SourceJoin
from exabgp.bgp.message.update.nlri.mvpn.sharedjoin import SharedJoin as MVPN_SharedJoin
from exabgp.bgp.message.update.nlri.qualifier.rd import RouteDistinguisher
from exabgp.bgp.message.update.nlri.qualifier.labels import Labels
from exabgp.bgp.message.update.nlri.qualifier.esi import ESI
from exabgp.bgp.message.update.nlri.qualifier.etag import EthernetTag
from exabgp.bgp.message.update.nlri.qualifier.mac import MAC
from exabgp.protocol.ip import IP
from exabgp.bgp.message import Action
class TestNLRIs(unittest.TestCase):
# Tests on MVPN NLRIs
def test300_MVPNSourceAD_CreatePackUnpack(self):
"""Test pack/unpack for MVPN Source A-D route"""
nlri = MVPN_SourceAD(
afi=AFI.ipv4,
rd=RouteDistinguisher.fromElements('42.42.42.42', 5),
source=IP.create('1.2.3.0'),
group=IP.create('226.0.0.1'),
)
packed = nlri.pack()
unpacked, leftover = MVPN.unpack_nlri(
afi=AFI.ipv4,
safi=SAFI.mcast_vpn,
bgp=packed,
action=Action.UNSET,
addpath=None,
)
self.assertEqual(0, len(leftover))
self.assertTrue(isinstance(unpacked, MVPN_SourceAD))
self.assertEqual('1.2.3.0', str(unpacked.source))
self.assertEqual('42.42.42.42:5', unpacked.rd._str())
self.assertEqual('226.0.0.1', str(unpacked.group))
nlri = MVPN_SourceAD(
afi=AFI.ipv6,
rd=RouteDistinguisher.fromElements('42.42.42.42', 5),
source=IP.create('fd12::2'),
group=IP.create('ff0e::1'),
)
packed = nlri.pack()
unpacked, leftover = MVPN.unpack_nlri(
afi=AFI.ipv6,
safi=SAFI.mcast_vpn,
bgp=packed,
action=Action.UNSET,
addpath=None,
)
self.assertEqual(0, len(leftover))
self.assertTrue(isinstance(unpacked, MVPN_SourceAD))
self.assertEqual('fd12::2', str(unpacked.source))
self.assertEqual('42.42.42.42:5', unpacked.rd._str())
self.assertEqual('ff0e::1', str(unpacked.group))
def test300_MVPNSourceJoin_CreatePackUnpack(self):
"""Test pack/unpack for MVPN Source-Join route"""
nlri = MVPN_SourceJoin(
afi=AFI.ipv4,
rd=RouteDistinguisher.fromElements('42.42.42.42', 5),
source=IP.create('1.2.3.0'),
group=IP.create('226.0.0.1'),
source_as=1234,
)
packed = nlri.pack()
unpacked, leftover = MVPN.unpack_nlri(
afi=AFI.ipv4,
safi=SAFI.mcast_vpn,
bgp=packed,
action=Action.UNSET,
addpath=None,
)
self.assertEqual(0, len(leftover))
self.assertTrue(isinstance(unpacked, MVPN_SourceJoin))
self.assertEqual('1.2.3.0', str(unpacked.source))
self.assertEqual('42.42.42.42:5', unpacked.rd._str())
self.assertEqual('226.0.0.1', str(unpacked.group))
self.assertEqual(1234, unpacked.source_as)
nlri = MVPN_SourceJoin(
afi=AFI.ipv6,
rd=RouteDistinguisher.fromElements('42.42.42.42', 5),
source=IP.create('fd12::2'),
group=IP.create('ff0e::1'),
source_as=1234,
)
packed = nlri.pack()
unpacked, leftover = MVPN.unpack_nlri(
afi=AFI.ipv6,
safi=SAFI.mcast_vpn,
bgp=packed,
action=Action.UNSET,
addpath=None,
)
self.assertEqual(0, len(leftover))
self.assertTrue(isinstance(unpacked, MVPN_SourceJoin))
self.assertEqual('fd12::2', str(unpacked.source))
self.assertEqual('42.42.42.42:5', unpacked.rd._str())
self.assertEqual('ff0e::1', str(unpacked.group))
self.assertEqual(1234, unpacked.source_as)
def test300_MVPNSharedJoin_CreatePackUnpack(self):
"""Test pack/unpack for MVPN Shared-Join route"""
nlri = MVPN_SharedJoin(
afi=AFI.ipv4,
rd=RouteDistinguisher.fromElements('42.42.42.42', 5),
source=IP.create('1.2.3.0'),
group=IP.create('226.0.0.1'),
source_as=1234,
)
packed = nlri.pack()
unpacked, leftover = MVPN.unpack_nlri(
afi=AFI.ipv4,
safi=SAFI.mcast_vpn,
bgp=packed,
action=Action.UNSET,
addpath=None,
)
self.assertEqual(0, len(leftover))
self.assertTrue(isinstance(unpacked, MVPN_SharedJoin))
self.assertEqual('1.2.3.0', str(unpacked.source))
self.assertEqual('42.42.42.42:5', unpacked.rd._str())
self.assertEqual('226.0.0.1', str(unpacked.group))
self.assertEqual(1234, unpacked.source_as)
nlri = MVPN_SharedJoin(
afi=AFI.ipv6,
rd=RouteDistinguisher.fromElements('42.42.42.42', 5),
source=IP.create('fd12::2'),
group=IP.create('ff0e::1'),
source_as=1234,
)
packed = nlri.pack()
unpacked, leftover = MVPN.unpack_nlri(
afi=AFI.ipv6,
safi=SAFI.mcast_vpn,
bgp=packed,
action=Action.UNSET,
addpath=None,
)
self.assertEqual(0, len(leftover))
self.assertTrue(isinstance(unpacked, MVPN_SharedJoin))
self.assertEqual('fd12::2', str(unpacked.source))
self.assertEqual('42.42.42.42:5', unpacked.rd._str())
self.assertEqual('ff0e::1', str(unpacked.group))
self.assertEqual(1234, unpacked.source_as)
# Tests on IPVPN NLRIs
def test200_IPVPNCreatePackUnpack(self):
"""Test pack/unpack for IPVPN routes"""
nlri = IPVPN.new(
AFI.ipv4,
SAFI.mpls_vpn,
IP.pton('1.2.3.0'),
24,
Labels([42], True),
RouteDistinguisher.fromElements('42.42.42.42', 5),
)
packed = nlri.pack()
unpacked, leftover = IPVPN.unpack_nlri(AFI.ipv4, SAFI.mpls_vpn, packed, Action.UNSET, None)
self.assertEqual(0, len(leftover))
# TODO: compare packed with a reference encoding verified
# as conformant with RFC4364
self.assertTrue(isinstance(unpacked, IPVPN))
self.assertEqual('1.2.3.0/24', unpacked.cidr.prefix())
self.assertEqual(1, len(unpacked.labels.labels))
self.assertEqual(42, unpacked.labels.labels[0])
self.assertEqual('42.42.42.42:5', unpacked.rd._str())
# Tests on EVPN NLRIs
def test99_EVPNMACCreatePackUnpack(self):
"""Test pack/unpack for E-VPN MAC routes"""
nlri = EVPNMAC(
RouteDistinguisher.fromElements('42.42.42.42', 5),
ESI(),
EthernetTag(111),
MAC('01:02:03:04:05:06'),
6 * 8,
Labels([42], True),
IP.create('1.1.1.1'),
)
packed = nlri.pack()
unpacked, leftover = EVPN.unpack_nlri(AFI.l2vpn, SAFI.evpn, packed, Action.UNSET, None)
self.assertEqual(0, len(leftover))
# TODO: compare packed with a reference encoding verified
# as conformant with RFC7432
self.assertTrue(isinstance(unpacked, EVPNMAC))
self.assertEqual('42.42.42.42:5', unpacked.rd._str())
self.assertEqual(ESI.DEFAULT, unpacked.esi.esi)
self.assertEqual(EthernetTag(111), unpacked.etag)
self.assertEqual(MAC('01:02:03:04:05:06'), unpacked.mac)
self.assertEqual(IP.create('1.1.1.1'), unpacked.ip)
self.assertEqual(1, len(unpacked.label.labels))
self.assertEqual(42, unpacked.label.labels[0])
def test99_EVPNMulticastCreatePackUnpack(self):
"""Test pack/unpack for E-VPN Multicast routes"""
nlri = EVPNMulticast(
RouteDistinguisher.fromElements('42.42.42.42', 5),
EthernetTag(111),
IP.create('1.1.1.1'),
)
packed = nlri.pack()
unpacked, leftover = EVPN.unpack_nlri(AFI.l2vpn, SAFI.evpn, packed, Action.UNSET, None)
self.assertEqual(0, len(leftover))
# TODO: compare packed with a reference encoding verified
# as conformant with RFC7432
self.assertTrue(isinstance(unpacked, EVPNMulticast))
self.assertEqual('42.42.42.42:5', unpacked.rd._str())
self.assertEqual(EthernetTag(111), unpacked.etag)
self.assertEqual(IP.create('1.1.1.1'), unpacked.ip)
def test99_EVPNPrefixCreatePackUnpack(self):
"""Test pack/unpack for E-VPN Prefix routes"""
nlri = EVPNPrefix(
RouteDistinguisher.fromElements('42.42.42.42', 5),
ESI(),
EthernetTag(111),
Labels([42], True),
IP.create('1.1.1.0'),
24,
IP.create('2.2.2.2'),
)
packed = nlri.pack()
unpacked, leftover = EVPN.unpack_nlri(AFI.l2vpn, SAFI.evpn, packed, Action.UNSET, None)
self.assertEqual(0, len(leftover))
# TODO: compare packed with a reference encoding verified
# as conformant with RFC7432
self.assertTrue(isinstance(unpacked, EVPNPrefix))
self.assertEqual('42.42.42.42:5', unpacked.rd._str())
self.assertEqual(ESI.DEFAULT, unpacked.esi.esi)
self.assertEqual(EthernetTag(111), unpacked.etag)
self.assertEqual(IP.create('1.1.1.0'), unpacked.ip)
self.assertEqual(24, unpacked.iplen)
self.assertEqual(IP.create('2.2.2.2'), unpacked.gwip)
self.assertEqual(1, len(unpacked.label.labels))
self.assertEqual(42, unpacked.label.labels[0])
def test100_EVPNMACHashEqual(self):
"""
Two indistinct EVPN NLRI should
hash to the same value, and be equal
"""
nlri1 = EVPNMAC(
RouteDistinguisher.fromElements('42.42.42.42', 5),
ESI(),
EthernetTag(111),
MAC('01:02:03:04:05:06'),
6 * 8,
Labels([42], True),
IP.create('1.1.1.1'),
)
nlri2 = EVPNMAC(
RouteDistinguisher.fromElements('42.42.42.42', 5),
ESI(),
EthernetTag(111),
MAC('01:02:03:04:05:06'),
6 * 8,
Labels([42], True),
IP.create('1.1.1.1'),
)
self.assertEqual(hash(nlri1), hash(nlri2))
self.assertEqual(nlri1, nlri2)
def test101_EVPNHashEqual_somefieldsvary(self):
"""
Two EVPN MAC NLRIs differing by their ESI or label or RD,
or nexthop, but otherwise identical should hash to the same value,
and be equal
"""
nlri0 = EVPNMAC(
RouteDistinguisher.fromElements('42.42.42.42', 5),
ESI(),
EthernetTag(111),
MAC('01:02:03:04:05:06'),
6 * 8,
Labels([42], True),
IP.create('1.1.1.1'),
)
# ESI
nlri1 = EVPNMAC(
RouteDistinguisher.fromElements('42.42.42.42', 5),
ESI(
bytes(
[
1,
]
* 10
)
),
EthernetTag(111),
MAC('01:02:03:04:05:06'),
6 * 8,
Labels([42], True),
IP.create('1.1.1.1'),
)
# label
nlri2 = EVPNMAC(
RouteDistinguisher.fromElements('42.42.42.42', 5),
ESI(),
EthernetTag(111),
MAC('01:02:03:04:05:06'),
6 * 8,
Labels([4444], True),
IP.create('1.1.1.1'),
)
# IP: different IPs, but same MACs: different route
nlri3 = EVPNMAC(
RouteDistinguisher.fromElements('42.42.42.42', 5),
ESI(),
EthernetTag(111),
MAC('01:02:03:04:05:06'),
6 * 8,
Labels([42], True),
IP.create('2.2.2.2'),
)
# with a next hop...
nlri4 = EVPNMAC(
RouteDistinguisher.fromElements('42.42.42.42', 5),
ESI(),
EthernetTag(111),
MAC('01:02:03:04:05:06'),
6 * 8,
Labels([42], True),
IP.create('1.1.1.1'),
IP.pton('10.10.10.10'),
)
nlri5 = EVPNMAC(
RouteDistinguisher.fromElements('42.42.42.42', 5),
ESI(),
EthernetTag(111),
MAC('01:02:03:04:05:06'),
6 * 8,
Labels([42], True),
IP.create('1.1.1.1'),
IP.pton('11.11.11.11'),
)
self.assertEqual(hash(nlri0), hash(nlri1))
self.assertEqual(hash(nlri0), hash(nlri2))
self.assertEqual(hash(nlri0), hash(nlri4))
self.assertEqual(nlri0, nlri1)
self.assertEqual(nlri0, nlri2)
self.assertEqual(nlri0, nlri4)
self.assertEqual(nlri1, nlri2)
self.assertEqual(nlri1, nlri4)
self.assertEqual(nlri2, nlri4)
self.assertEqual(nlri4, nlri5)
self.assertNotEqual(hash(nlri0), hash(nlri3))
self.assertNotEqual(nlri0, nlri3)
self.assertNotEqual(nlri1, nlri3)
self.assertNotEqual(nlri2, nlri3)
self.assertNotEqual(nlri3, nlri4)
# tests on RTC NLRI
def test99_RTCCreatePackUnpack(self):
"""Test pack/unpack for RTC routes"""
nlri = RTC.new(AFI.ipv4, SAFI.rtc, 64512, RouteTarget(64577, 123))
packed = nlri.pack()
unpacked, leftover = RTC.unpack_nlri(AFI.ipv4, SAFI.mpls_vpn, packed, Action.UNSET, None)
self.assertEqual(0, len(leftover))
# TODO: compare packed with a reference encoding verified
# as conformant with RFC4684
self.assertTrue(isinstance(unpacked, RTC))
self.assertEqual(64512, unpacked.origin)
self.assertTrue(isinstance(unpacked.rt, RouteTarget))
self.assertEqual(64577, unpacked.rt.asn)
self.assertEqual(123, unpacked.rt.number)
def test98_RTCWildcardPackUnpack(self):
"""Test pack/unpack for RTC routes"""
nlri = RTC.new(AFI.ipv4, SAFI.rtc, 0, None)
packed = nlri.pack()
unpacked, leftover = RTC.unpack_nlri(AFI.ipv4, SAFI.mpls_vpn, packed, Action.UNSET, None)
self.assertEqual(0, len(leftover))
# TODO: compare packed with a reference encoding verified
# as conformant with RFC4684
self.assertTrue(isinstance(unpacked, RTC))
self.assertEqual(0, unpacked.origin)
self.assertIsNone(unpacked.rt)
# tests on attributes
def test4_DistinctAttributes(self):
atts1 = Attributes()
atts1.add(LocalPreference(10))
atts2 = Attributes()
atts2.add(LocalPreference(20))
self.assertNotEqual(atts1, atts2)
def test5_SameAttributes(self):
atts1 = Attributes()
atts1.add(LocalPreference(10))
atts2 = Attributes()
atts2.add(LocalPreference(10))
self.assertEqual(hash(atts1), hash(atts2))
self.assertEqual(atts1, atts2)
def test6_SameAttributesOrderMultivalued(self):
atts1 = Attributes()
eComs1 = ExtendedCommunities()
eComs1.communities.append(RouteTarget(64512, 1))
eComs1.communities.append(Encapsulation(Encapsulation.Type.VXLAN))
eComs1.communities.append(RouteTarget(64512, 2))
atts1.add(eComs1)
atts2 = Attributes()
eComs2 = ExtendedCommunities()
eComs2.communities.append(RouteTarget(64512, 2))
eComs2.communities.append(RouteTarget(64512, 1))
eComs2.communities.append(Encapsulation(Encapsulation.Type.VXLAN))
atts2.add(eComs2)
self.assertEqual(hash(atts1), hash(atts2))
self.assertEqual(atts1, atts2)
def test10_Ecoms(self):
eComs1 = ExtendedCommunities()
eComs1.communities.append(Encapsulation(Encapsulation.Type.VXLAN))
atts1 = Attributes()
atts1.add(eComs1)
eComs2 = ExtendedCommunities()
eComs2.communities.append(Encapsulation(Encapsulation.Type.VXLAN))
eComs2.communities.append(RouteTarget(64512, 1))
atts2 = Attributes()
atts2.add(eComs2)
self.assertFalse(atts1.sameValuesAs(atts2))
self.assertFalse(atts2.sameValuesAs(atts1))
def test11_RTs(self):
rt1a = RouteTarget(64512, 1)
rt1b = RouteTarget(64512, 1)
rt3 = RouteTarget(64512, 2)
rt4 = RouteTarget(64513, 1)
self.assertEqual(hash(rt1a), hash(rt1b))
self.assertNotEqual(hash(rt1a), hash(rt3))
self.assertNotEqual(hash(rt1a), hash(rt4))
self.assertEqual(rt1a, rt1b)
self.assertNotEqual(rt1a, rt3)
self.assertNotEqual(rt1a, rt4)
self.assertEqual(set([rt1a]), set([rt1b]))
self.assertEqual(1, len(set([rt1a]).intersection(set([rt1b]))))
def test12_RTRecord(self):
rt = RouteTarget(64512, 22)
rt_record = RTRecord.from_rt(rt)
_ = rt_record
if __name__ == '__main__':
unittest.main()