diff options
Diffstat (limited to 'tests/topotests/bgp_prefix_sid')
-rw-r--r-- | tests/topotests/bgp_prefix_sid/__init__.py | 0 | ||||
-rw-r--r-- | tests/topotests/bgp_prefix_sid/exabgp.env | 53 | ||||
-rw-r--r-- | tests/topotests/bgp_prefix_sid/peer1/exabgp.cfg | 103 | ||||
-rw-r--r-- | tests/topotests/bgp_prefix_sid/peer2/exabgp.cfg | 19 | ||||
-rw-r--r-- | tests/topotests/bgp_prefix_sid/r1/bgpd.conf | 17 | ||||
-rw-r--r-- | tests/topotests/bgp_prefix_sid/r1/zebra.conf | 7 | ||||
-rw-r--r-- | tests/topotests/bgp_prefix_sid/test_bgp_prefix_sid.py | 172 |
7 files changed, 371 insertions, 0 deletions
diff --git a/tests/topotests/bgp_prefix_sid/__init__.py b/tests/topotests/bgp_prefix_sid/__init__.py new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/tests/topotests/bgp_prefix_sid/__init__.py diff --git a/tests/topotests/bgp_prefix_sid/exabgp.env b/tests/topotests/bgp_prefix_sid/exabgp.env new file mode 100644 index 0000000..6c554f5 --- /dev/null +++ b/tests/topotests/bgp_prefix_sid/exabgp.env @@ -0,0 +1,53 @@ + +[exabgp.api] +encoder = text +highres = false +respawn = false +socket = '' + +[exabgp.bgp] +openwait = 60 + +[exabgp.cache] +attributes = true +nexthops = true + +[exabgp.daemon] +daemonize = true +pid = '/var/run/exabgp/exabgp.pid' +user = 'exabgp' + +[exabgp.log] +all = false +configuration = true +daemon = true +destination = '/var/log/exabgp.log' +enable = true +level = INFO +message = false +network = true +packets = false +parser = false +processes = true +reactor = true +rib = false +routes = false +short = false +timers = false + +[exabgp.pdb] +enable = false + +[exabgp.profile] +enable = false +file = '' + +[exabgp.reactor] +speed = 1.0 + +[exabgp.tcp] +acl = false +bind = '' +delay = 0 +once = false +port = 179 diff --git a/tests/topotests/bgp_prefix_sid/peer1/exabgp.cfg b/tests/topotests/bgp_prefix_sid/peer1/exabgp.cfg new file mode 100644 index 0000000..5b55366 --- /dev/null +++ b/tests/topotests/bgp_prefix_sid/peer1/exabgp.cfg @@ -0,0 +1,103 @@ +group controller { + neighbor 10.0.0.1 { + router-id 10.0.0.101; + local-address 10.0.0.101; + local-as 2; + peer-as 1; + + family { + ipv4 nlri-mpls; + } + + static { + # ref: draft-ietf-idr-bgp-prefix-sid-27 + # + # IANA temporarily assigned the following: + # attribute code type (suggested value: 40) to + # the BGP Prefix-SID attribute + # + # 0 1 2 3 + # 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + # +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + # | Type | Length | RESERVED | + # +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + # | Flags | Label Index | + # +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + # | Label Index | + # +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + # Figure. Label-Index TLV (Prefix-SID type-1) + # + # 0 1 2 3 + # 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + # +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + # | Type | Length | Flags | + # +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + # | Flags | + # +-+-+-+-+-+-+-+-+ + # + # +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + # | SRGB 1 (6 octets) | + # | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + # | | + # +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + # + # +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + # | SRGB n (6 octets) | + # | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + # | | + # +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+<Paste> + # Figure. Originator SRGB TLV (Prefix-SID type-3) + + # ExaBGP generic-attribute binary pattern: + # Attribute-type: 0x28 (40:BGP_PREFIX_SID) + # Attribute-flag: 0xc0 (Option, Transitive) + # Attribute-body: Label-Index TLV and Originator SRGB TLV + # Label-Index TLV: 0x01000700000000000001 + # Type (08bit): 0x01 + # Length (16bit): 0x0007 + # RESERVED (08bit): 0x00 + # Flags (16bit): 0x0000 + # Label Index (32bit): 0x00000001 + # Originator SRGB TLV: 0x03000800000c350000000a + # Type (08bit): 0x03 + # Length (16bit): 0x0008 (nb-SRGB is 1) + # Flags (16bit): 0x0000 + # SRGB1 (48bit): 0x0c3500:0x00000a (800000-800010 is SRGB1) + route 3.0.0.1/32 next-hop 10.0.0.101 label [800001] attribute [0x28 0xc0 0x0100070000000000000103000800000c350000000a]; + + # ExaBGP generic-attribute binary pattern: + # Attribute-type: 0x28 (40:BGP_PREFIX_SID) + # Attribute-flag: 0xc0 (Option, Transitive) + # Attribute-body: Label-Index TLV and Originator SRGB TLV + # Label-Index TLV: 0x01000700000000000001 + # Type (08bit): 0x01 + # Length (16bit): 0x0007 + # RESERVED (08bit): 0x00 + # Flags (16bit): 0x0000 + # Label Index (32bit): 0x00000002 + # Originator SRGB TLV: 0x03000800000c350000000a + # Type (08bit): 0x03 + # Length (16bit): 0x0008 (nb-SRGB is 1) + # Flags (16bit): 0x0000 + # SRGB1 (48bit): 0x0c3500:0x00000a (800000-800010 is SRGB1) + route 3.0.0.2/32 next-hop 10.0.0.101 label [800002] attribute [0x28 0xc0 0x0100070000000000000203000800000c350000000a]; + + # ExaBGP generic-attribute binary pattern: + # Attribute-type: 0x28 (40:BGP_PREFIX_SID) + # Attribute-flag: 0xc0 (Option, Transitive) + # Attribute-body: Label-Index TLV and Originator SRGB TLV + # Label-Index TLV: 0x01000700000000000001 + # Type (08bit): 0x01 + # Length (16bit): 0x0007 + # RESERVED (08bit): 0x00 + # Flags (16bit): 0x0000 + # Label Index (32bit): 0x00000003 + # Originator SRGB TLV: 0x03000800000c350000000a + # Type (08bit): 0x03 + # Length (16bit): 0x0008 (nb-SRGB is 1) + # Flags (16bit): 0x0000 + # SRGB1 (48bit): 0x0c3500:0x00000a (800000-800010 is SRGB1) + route 3.0.0.3/32 next-hop 10.0.0.101 label [800003] attribute [0x28 0xc0 0x0100070000000000000303000800000c350000000a]; + } + } +} diff --git a/tests/topotests/bgp_prefix_sid/peer2/exabgp.cfg b/tests/topotests/bgp_prefix_sid/peer2/exabgp.cfg new file mode 100644 index 0000000..379d0a3 --- /dev/null +++ b/tests/topotests/bgp_prefix_sid/peer2/exabgp.cfg @@ -0,0 +1,19 @@ +group controller { + + process receive-routes { + run "/etc/exabgp/exa-receive.py --no-timestamp 2"; + receive-routes; + encoder json; + } + + neighbor 10.0.0.1 { + router-id 10.0.0.102; + local-address 10.0.0.102; + local-as 3; + peer-as 1; + + family { + ipv4 nlri-mpls; + } + } +} diff --git a/tests/topotests/bgp_prefix_sid/r1/bgpd.conf b/tests/topotests/bgp_prefix_sid/r1/bgpd.conf new file mode 100644 index 0000000..e02226f --- /dev/null +++ b/tests/topotests/bgp_prefix_sid/r1/bgpd.conf @@ -0,0 +1,17 @@ +log stdout notifications +log commands +! +router bgp 1 + bgp router-id 10.0.0.1 + no bgp default ipv4-unicast + no bgp ebgp-requires-policy + neighbor 10.0.0.101 remote-as 2 + neighbor 10.0.0.101 timers 3 10 + neighbor 10.0.0.102 remote-as 3 + neighbor 10.0.0.102 timers 3 10 + ! + address-family ipv4 labeled-unicast + neighbor 10.0.0.101 activate + neighbor 10.0.0.102 activate + exit-address-family +! diff --git a/tests/topotests/bgp_prefix_sid/r1/zebra.conf b/tests/topotests/bgp_prefix_sid/r1/zebra.conf new file mode 100644 index 0000000..0cd2605 --- /dev/null +++ b/tests/topotests/bgp_prefix_sid/r1/zebra.conf @@ -0,0 +1,7 @@ +hostname r1 +! +interface r1-eth0 + ip address 10.0.0.1/24 + no shutdown +! +line vty diff --git a/tests/topotests/bgp_prefix_sid/test_bgp_prefix_sid.py b/tests/topotests/bgp_prefix_sid/test_bgp_prefix_sid.py new file mode 100644 index 0000000..bfc083b --- /dev/null +++ b/tests/topotests/bgp_prefix_sid/test_bgp_prefix_sid.py @@ -0,0 +1,172 @@ +#!/usr/bin/env python +# SPDX-License-Identifier: ISC + +# +# test_bgp_prefix_sid.py +# Part of NetDEF Topology Tests +# +# Copyright (c) 2020 by LINE Corporation +# Copyright (c) 2020 by Hiroki Shirokura <slank.dev@gmail.com> +# + +""" +test_bgp_prefix_sid.py: Test BGP topology with EBGP on prefix-sid +""" + +import json +import os +import sys +import functools +import pytest + +CWD = os.path.dirname(os.path.realpath(__file__)) +sys.path.append(os.path.join(CWD, "../")) + +# pylint: disable=C0413 +from lib import topotest +from lib.topogen import Topogen, TopoRouter, get_topogen +from lib.topolog import logger + +pytestmark = [pytest.mark.bgpd] + + +def build_topo(tgen): + router = tgen.add_router("r1") + switch = tgen.add_switch("s1") + switch.add_link(router) + + switch = tgen.gears["s1"] + peer1 = tgen.add_exabgp_peer("peer1", ip="10.0.0.101", defaultRoute="via 10.0.0.1") + peer2 = tgen.add_exabgp_peer("peer2", ip="10.0.0.102", defaultRoute="via 10.0.0.1") + switch.add_link(peer1) + switch.add_link(peer2) + + +def setup_module(module): + tgen = Topogen(build_topo, module.__name__) + tgen.start_topology() + + router = tgen.gears["r1"] + router.load_config( + TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format("r1")) + ) + router.load_config( + TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format("r1")) + ) + router.start() + + logger.info("starting exaBGP on peer1") + peer_list = tgen.exabgp_peers() + for pname, peer in peer_list.items(): + peer_dir = os.path.join(CWD, pname) + env_file = os.path.join(CWD, "exabgp.env") + logger.info("Running ExaBGP peer") + peer.start(peer_dir, env_file) + logger.info(pname) + + +def teardown_module(module): + tgen = get_topogen() + tgen.stop_topology() + + +def test_r1_receive_and_advertise_prefix_sid_type1(): + tgen = get_topogen() + router = tgen.gears["r1"] + + def _check_type1_r1(router, prefix, remoteLabel, labelIndex): + output = router.vtysh_cmd( + "show bgp ipv4 labeled-unicast {} json".format(prefix) + ) + output = json.loads(output) + expected = { + "prefix": prefix, + "advertisedTo": {"10.0.0.101": {}, "10.0.0.102": {}}, + "paths": [ + { + "valid": True, + "remoteLabel": remoteLabel, + "labelIndex": labelIndex, + } + ], + } + return topotest.json_cmp(output, expected) + + test_func = functools.partial(_check_type1_r1, router, "3.0.0.1/32", 800001, 1) + success, result = topotest.run_and_expect(test_func, None, count=10, wait=0.5) + assert result is None, 'Failed _check_type1_r1 in "{}"'.format(router) + + test_func = functools.partial(_check_type1_r1, router, "3.0.0.2/32", 800002, 2) + success, result = topotest.run_and_expect(test_func, None, count=10, wait=0.5) + assert result is None, 'Failed _check_type1_r1 in "{}"'.format(router) + + +def exabgp_get_update_prefix(filename, afi, nexthop, prefix): + with open(filename) as f: + for line in f.readlines(): + output = json.loads(line) + ret = output.get("neighbor") + if ret is None: + continue + ret = ret.get("message") + if ret is None: + continue + ret = ret.get("update") + if ret is None: + continue + ret = ret.get("announce") + if ret is None: + continue + ret = ret.get(afi) + if ret is None: + continue + ret = ret.get(nexthop) + if ret is None: + continue + ret = ret.get(prefix) + if ret is None: + continue + return output + return "Not found" + + +def test_peer2_receive_prefix_sid_type1(): + tgen = get_topogen() + peer2 = tgen.gears["peer2"] + logfile = "{}/{}-received.log".format(peer2.gearlogdir, peer2.name) + + def _check_type1_peer2(prefix, labelindex): + output = exabgp_get_update_prefix( + logfile, "ipv4 nlri-mpls", "10.0.0.101", prefix + ) + expected = { + "type": "update", + "neighbor": { + "ip": "10.0.0.1", + "message": { + "update": { + "attribute": { + "attribute-0x28-0xE0": "0x010007000000{:08x}".format( + labelindex + ) + }, + "announce": {"ipv4 nlri-mpls": {"10.0.0.101": {}}}, + } + }, + }, + } + return topotest.json_cmp(output, expected) + + test_func = functools.partial(_check_type1_peer2, "3.0.0.1/32", labelindex=1) + success, result = topotest.run_and_expect(test_func, None, count=10, wait=0.5) + assert result is None, 'Failed _check_type1_peer2 in "{}"'.format("peer2") + + test_func = functools.partial(_check_type1_peer2, "3.0.0.2/32", labelindex=2) + success, result = topotest.run_and_expect(test_func, None, count=10, wait=0.5) + assert result is None, 'Failed _check_type1_peer2 in "{}"'.format("peer2") + + +if __name__ == "__main__": + args = ["-s"] + sys.argv[1:] + ret = pytest.main(args) + sys.exit(ret) |