From 444a4716fbdefb61d0b7964731470f3019033cc2 Mon Sep 17 00:00:00 2001 From: Donatas Abraitis Date: Thu, 16 Mar 2023 14:39:40 +0200 Subject: [PATCH] tests: Check if route-map works correctly if modifying prefix-lists Signed-off-by: Donatas Abraitis (cherry picked from commit a1e538178cb1ed09f6bbc0612605c5980bb9a3df) --- .../topotests/bgp_prefix_list_any/__init__.py | 0 .../bgp_prefix_list_any/r1/bgpd.conf | 9 ++ .../bgp_prefix_list_any/r1/zebra.conf | 4 + .../bgp_prefix_list_any/r2/bgpd.conf | 28 ++++++ .../bgp_prefix_list_any/r2/zebra.conf | 4 + .../test_bgp_prefix_list_any.py | 96 +++++++++++++++++++ 6 files changed, 141 insertions(+) create mode 100644 tests/topotests/bgp_prefix_list_any/__init__.py create mode 100644 tests/topotests/bgp_prefix_list_any/r1/bgpd.conf create mode 100644 tests/topotests/bgp_prefix_list_any/r1/zebra.conf create mode 100644 tests/topotests/bgp_prefix_list_any/r2/bgpd.conf create mode 100644 tests/topotests/bgp_prefix_list_any/r2/zebra.conf create mode 100644 tests/topotests/bgp_prefix_list_any/test_bgp_prefix_list_any.py diff --git a/tests/topotests/bgp_prefix_list_any/__init__.py b/tests/topotests/bgp_prefix_list_any/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/topotests/bgp_prefix_list_any/r1/bgpd.conf b/tests/topotests/bgp_prefix_list_any/r1/bgpd.conf new file mode 100644 index 0000000000..d822cdb917 --- /dev/null +++ b/tests/topotests/bgp_prefix_list_any/r1/bgpd.conf @@ -0,0 +1,9 @@ +! +router bgp 65001 + no bgp ebgp-requires-policy + no bgp network import-check + neighbor 192.168.1.2 remote-as external + address-family ipv4 unicast + network 192.168.0.1/32 + exit-address-family +! diff --git a/tests/topotests/bgp_prefix_list_any/r1/zebra.conf b/tests/topotests/bgp_prefix_list_any/r1/zebra.conf new file mode 100644 index 0000000000..b29940f46a --- /dev/null +++ b/tests/topotests/bgp_prefix_list_any/r1/zebra.conf @@ -0,0 +1,4 @@ +! +int r1-eth0 + ip address 192.168.1.1/24 +! diff --git a/tests/topotests/bgp_prefix_list_any/r2/bgpd.conf b/tests/topotests/bgp_prefix_list_any/r2/bgpd.conf new file mode 100644 index 0000000000..248b5d40ec --- /dev/null +++ b/tests/topotests/bgp_prefix_list_any/r2/bgpd.conf @@ -0,0 +1,28 @@ +! +debug bgp updates +! +router bgp 65002 + no bgp ebgp-requires-policy + no bgp network import-check + neighbor 192.168.1.1 remote-as external + address-family ipv4 unicast + network 10.10.10.1/32 + network 10.10.10.2/32 + network 10.10.10.3/32 + network 10.10.10.10/32 + neighbor 192.168.1.1 route-map r1 out + exit-address-family +! +ip prefix-list r1-1 seq 5 permit 10.10.10.1/32 +ip prefix-list r1-1 seq 10 permit 10.10.10.2/32 +ip prefix-list r1-1 seq 15 permit 10.10.10.3/32 +ip prefix-list r1-2 seq 5 permit 10.10.10.10/32 +!ip prefix-list r1-2 seq 5 deny any +! +route-map r1 permit 10 + match ip address prefix-list r1-1 +exit +! +route-map r1 permit 20 + match ip address prefix-list r1-2 +exit diff --git a/tests/topotests/bgp_prefix_list_any/r2/zebra.conf b/tests/topotests/bgp_prefix_list_any/r2/zebra.conf new file mode 100644 index 0000000000..cffe827363 --- /dev/null +++ b/tests/topotests/bgp_prefix_list_any/r2/zebra.conf @@ -0,0 +1,4 @@ +! +int r2-eth0 + ip address 192.168.1.2/24 +! diff --git a/tests/topotests/bgp_prefix_list_any/test_bgp_prefix_list_any.py b/tests/topotests/bgp_prefix_list_any/test_bgp_prefix_list_any.py new file mode 100644 index 0000000000..9446242787 --- /dev/null +++ b/tests/topotests/bgp_prefix_list_any/test_bgp_prefix_list_any.py @@ -0,0 +1,96 @@ +#!/usr/bin/env python +# SPDX-License-Identifier: ISC + +# Copyright (c) 2023 by +# Donatas Abraitis +# + +""" +Test if route-map works correctly when modifying prefix-list +from deny to permit with any, and vice-versa. +""" + +import os +import sys +import json +import pytest +import functools + +pytestmark = pytest.mark.bgpd + +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 + +pytestmark = [pytest.mark.bgpd] + + +def setup_module(mod): + topodef = {"s1": ("r1", "r2")} + tgen = Topogen(topodef, mod.__name__) + tgen.start_topology() + + router_list = tgen.routers() + + for i, (rname, router) in enumerate(router_list.items(), 1): + router.load_config( + TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname)) + ) + router.load_config( + TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname)) + ) + + tgen.start_router() + + +def teardown_module(mod): + tgen = get_topogen() + tgen.stop_topology() + + +def test_bgp_route_map_prefix_list(): + tgen = get_topogen() + + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + + r2 = tgen.gears["r2"] + + def _bgp_prefixes_sent(count): + output = json.loads(r2.vtysh_cmd("show bgp ipv4 unicast summary json")) + expected = {"peers": {"192.168.1.1": {"pfxSnt": count, "state": "Established"}}} + return topotest.json_cmp(output, expected) + + test_func = functools.partial(_bgp_prefixes_sent, 4) + _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5) + assert result is None, "Can't converge initial topology" + + r2.vtysh_cmd( + """ + configure terminal + ip prefix-list r1-2 seq 5 deny any + """ + ) + + test_func = functools.partial(_bgp_prefixes_sent, 3) + _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5) + assert result is None, "Only 3 prefixes MUST be advertised, seeing more" + + r2.vtysh_cmd( + """ + configure terminal + ip prefix-list r1-2 seq 5 permit 10.10.10.10/32 + """ + ) + + test_func = functools.partial(_bgp_prefixes_sent, 4) + _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5) + assert result is None, "More or less prefixes advertised to r1, MUST be 4" + + +if __name__ == "__main__": + args = ["-s"] + sys.argv[1:] + sys.exit(pytest.main(args)) -- 2.39.5