diff options
Diffstat (limited to 'tests/topotests/bgp_redistribute_table')
9 files changed, 483 insertions, 0 deletions
diff --git a/tests/topotests/bgp_redistribute_table/__init__.py b/tests/topotests/bgp_redistribute_table/__init__.py new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/tests/topotests/bgp_redistribute_table/__init__.py diff --git a/tests/topotests/bgp_redistribute_table/r1/bgpd.conf b/tests/topotests/bgp_redistribute_table/r1/bgpd.conf new file mode 100644 index 0000000..c5e0fcd --- /dev/null +++ b/tests/topotests/bgp_redistribute_table/r1/bgpd.conf @@ -0,0 +1,8 @@ +router bgp 65500 + bgp router-id 192.0.2.1 + no bgp ebgp-requires-policy + neighbor 192.168.0.2 remote-as 65501 + address-family ipv4 unicast + neighbor 192.168.0.2 activate + exit-address-family +! diff --git a/tests/topotests/bgp_redistribute_table/r1/ipv4_routes_with_all_redistribute.json b/tests/topotests/bgp_redistribute_table/r1/ipv4_routes_with_all_redistribute.json new file mode 100644 index 0000000..e5a27f3 --- /dev/null +++ b/tests/topotests/bgp_redistribute_table/r1/ipv4_routes_with_all_redistribute.json @@ -0,0 +1,71 @@ +{ + "172.31.0.2/32": [ + { + "prefix": "172.31.0.2/32", + "protocol": "bgp", + "vrfId": 0, + "vrfName": "default", + "selected": true, + "destSelected": true, + "distance": 20, + "metric": 0, + "installed": true, + "nexthops": [ + { + "fib": true, + "ip": "192.168.0.2", + "afi": "ipv4", + "interfaceName": "r1-eth0", + "active": true, + "weight": 1 + } + ] + } + ], + "172.31.0.10/32": [ + { + "prefix": "172.31.0.10/32", + "protocol": "bgp", + "vrfId": 0, + "vrfName": "default", + "selected": true, + "destSelected": true, + "distance": 20, + "metric": 0, + "installed": true, + "nexthops": [ + { + "fib": true, + "ip": "192.168.0.2", + "afi": "ipv4", + "interfaceName": "r1-eth0", + "active": true, + "weight": 1 + } + ] + } + ], + "172.31.0.15/32": [ + { + "prefix": "172.31.0.15/32", + "protocol": "bgp", + "vrfId": 0, + "vrfName": "default", + "selected": true, + "destSelected": true, + "distance": 20, + "metric": 0, + "installed": true, + "nexthops": [ + { + "fib": true, + "ip": "192.168.0.2", + "afi": "ipv4", + "interfaceName": "r1-eth0", + "active": true, + "weight": 1 + } + ] + } + ] +} diff --git a/tests/topotests/bgp_redistribute_table/r1/ipv4_routes_with_redistribute.json b/tests/topotests/bgp_redistribute_table/r1/ipv4_routes_with_redistribute.json new file mode 100644 index 0000000..1304edd --- /dev/null +++ b/tests/topotests/bgp_redistribute_table/r1/ipv4_routes_with_redistribute.json @@ -0,0 +1,48 @@ +{ + "172.31.0.2/32": [ + { + "prefix": "172.31.0.2/32", + "protocol": "bgp", + "vrfId": 0, + "vrfName": "default", + "selected": true, + "destSelected": true, + "distance": 20, + "metric": 0, + "installed": true, + "nexthops": [ + { + "fib": true, + "ip": "192.168.0.2", + "afi": "ipv4", + "interfaceName": "r1-eth0", + "active": true, + "weight": 1 + } + ] + } + ], + "172.31.0.10/32": [ + { + "prefix": "172.31.0.10/32", + "protocol": "bgp", + "vrfId": 0, + "vrfName": "default", + "selected": true, + "destSelected": true, + "distance": 20, + "metric": 0, + "installed": true, + "nexthops": [ + { + "fib": true, + "ip": "192.168.0.2", + "afi": "ipv4", + "interfaceName": "r1-eth0", + "active": true, + "weight": 1 + } + ] + } + ] +} diff --git a/tests/topotests/bgp_redistribute_table/r1/ipv4_routes_without_redistribute.json b/tests/topotests/bgp_redistribute_table/r1/ipv4_routes_without_redistribute.json new file mode 100644 index 0000000..74f594f --- /dev/null +++ b/tests/topotests/bgp_redistribute_table/r1/ipv4_routes_without_redistribute.json @@ -0,0 +1,25 @@ +{ + "172.31.0.2/32": [ + { + "prefix": "172.31.0.2/32", + "protocol": "bgp", + "vrfId": 0, + "vrfName": "default", + "selected": true, + "destSelected": true, + "distance": 20, + "metric": 0, + "installed": true, + "nexthops": [ + { + "fib": true, + "ip": "192.168.0.2", + "afi": "ipv4", + "interfaceName": "r1-eth0", + "active": true, + "weight": 1 + } + ] + } + ] +} diff --git a/tests/topotests/bgp_redistribute_table/r1/zebra.conf b/tests/topotests/bgp_redistribute_table/r1/zebra.conf new file mode 100644 index 0000000..abe6d39 --- /dev/null +++ b/tests/topotests/bgp_redistribute_table/r1/zebra.conf @@ -0,0 +1,7 @@ +log stdout +interface r1-eth1 + ip address 172.31.0.1/32 +! +interface r1-eth0 + ip address 192.168.0.1/24 +! diff --git a/tests/topotests/bgp_redistribute_table/r2/bgpd.conf b/tests/topotests/bgp_redistribute_table/r2/bgpd.conf new file mode 100644 index 0000000..2ce7043 --- /dev/null +++ b/tests/topotests/bgp_redistribute_table/r2/bgpd.conf @@ -0,0 +1,10 @@ +router bgp 65501 + bgp router-id 192.0.2.2 + no bgp ebgp-requires-policy + neighbor 192.168.0.1 remote-as 65500 + address-family ipv4 unicast + network 172.31.0.2/32 + neighbor 192.168.0.1 activate + redistribute table-direct 2200 + exit-address-family +! diff --git a/tests/topotests/bgp_redistribute_table/r2/zebra.conf b/tests/topotests/bgp_redistribute_table/r2/zebra.conf new file mode 100644 index 0000000..89ad2ec --- /dev/null +++ b/tests/topotests/bgp_redistribute_table/r2/zebra.conf @@ -0,0 +1,8 @@ +log stdout +interface r2-eth0 + ip address 192.168.0.2/24 +! +interface r2-eth1 + ip address 172.31.0.2/32 + ip address 172.31.1.2/24 +! diff --git a/tests/topotests/bgp_redistribute_table/test_bgp_redistribute_table.py b/tests/topotests/bgp_redistribute_table/test_bgp_redistribute_table.py new file mode 100644 index 0000000..08b70ae --- /dev/null +++ b/tests/topotests/bgp_redistribute_table/test_bgp_redistribute_table.py @@ -0,0 +1,306 @@ +#!/usr/bin/env python +# SPDX-License-Identifier: ISC + +# +# test_bgp_redistribute_table.py +# Part of NetDEF Topology Tests +# +# Copyright (c) 2023 by 6WIND +# + +""" + test_bgp_redistribute_table.py: Test the FRR BGP daemon with 'redistribute table-direct' +""" + +import os +import sys +import json +from functools import partial +import pytest + +# Save the Current Working Directory to find configuration files. +CWD = os.path.dirname(os.path.realpath(__file__)) +sys.path.append(os.path.join(CWD, "../")) + +# pylint: disable=C0413 +# Import topogen and topotest helpers +from lib import topotest +from lib.common_config import step +from lib.topogen import Topogen, TopoRouter, get_topogen +from lib.topolog import logger + +# Required to instantiate the topology builder class. + + +pytestmark = [pytest.mark.bgpd] + + +def build_topo(tgen): + "Build function" + + # Create 2 routers. + tgen.add_router("r1") + tgen.add_router("r2") + + switch = tgen.add_switch("s1") + switch.add_link(tgen.gears["r1"]) + switch.add_link(tgen.gears["r2"]) + + switch = tgen.add_switch("s2") + switch.add_link(tgen.gears["r1"]) + + switch = tgen.add_switch("s3") + switch.add_link(tgen.gears["r2"]) + + +def setup_module(mod): + "Sets up the pytest environment" + tgen = Topogen(build_topo, mod.__name__) + tgen.start_topology() + + router_list = tgen.routers() + + for rname, router in router_list.items(): + 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)) + ) + + # Initialize all routers. + tgen.start_router() + + +def teardown_module(_mod): + "Teardown the pytest environment" + tgen = get_topogen() + + tgen.stop_topology() + + +def _router_json_cmp_exact_filter(router, cmd, expected): + output = router.vtysh_cmd(cmd) + logger.info("{}: {}\n{}".format(router.name, cmd, output)) + + json_output = json.loads(output) + + # filter out tableVersion, version, nhVrfId and vrfId + for route, attrs in json_output.items(): + for attr in attrs: + if "table" in attr: + attr.pop("table") + if "internalStatus" in attr: + attr.pop("internalStatus") + if "internalFlags" in attr: + attr.pop("internalFlags") + if "internalNextHopNum" in attr: + attr.pop("internalNextHopNum") + if "internalNextHopActiveNum" in attr: + attr.pop("internalNextHopActiveNum") + if "nexthopGroupId" in attr: + attr.pop("nexthopGroupId") + if "installedNexthopGroupId" in attr: + attr.pop("installedNexthopGroupId") + if "uptime" in attr: + attr.pop("uptime") + if "prefixLen" in attr: + attr.pop("prefixLen") + if "asPath" in attr: + attr.pop("asPath") + for nexthop in attr.get("nexthops", []): + if "flags" in nexthop: + nexthop.pop("flags") + if "interfaceIndex" in nexthop: + nexthop.pop("interfaceIndex") + + return topotest.json_cmp(json_output, expected, exact=True) + + +def _check_zebra_rib_r1(with_redistributed_route, with_second_route=False): + tgen = get_topogen() + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + + with_str = "" if with_redistributed_route else "out" + + router = tgen.gears["r1"] + if with_redistributed_route: + with_str = "" + if with_second_route: + json_file = "{}/{}/ipv4_routes_with_all_redistribute.json".format( + CWD, router.name + ) + else: + json_file = "{}/{}/ipv4_routes_with_redistribute.json".format( + CWD, router.name + ) + else: + with_str = "out" + json_file = "{}/{}/ipv4_routes_without_redistribute.json".format( + CWD, router.name + ) + + step(f"Checking IPv4 routes for convergence on r1 with{with_str} kernel route") + expected = json.loads(open(json_file).read()) + test_func = partial( + _router_json_cmp_exact_filter, + router, + "show ip route bgp json", + expected, + ) + _, result = topotest.run_and_expect(test_func, None, count=10, wait=0.5) + assertmsg = '"{}" JSON output mismatches'.format(router.name) + assert result is None, assertmsg + + +def _test_add_and_check_kernel_route_on_table_2200(): + tgen = get_topogen() + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + + router_list = tgen.routers() + + step("r2, adding new kernel route 172.31.0.10/32 on table 2200") + cmd = "ip route add 172.31.0.10/32 via 172.31.1.10 table 2200" + tgen.net["r2"].cmd(cmd) + + _check_zebra_rib_r1(True) + + +def test_step1_protocols_convergence(): + """ + Assert that all protocols have converged + statuses as they depend on it. + """ + tgen = get_topogen() + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + + logger.info("Checking IPv4 routes for convergence on r1") + _check_zebra_rib_r1(False) + + +def test_step2_add_kernel_route_on_table_2200(): + """ + On r2, create a kernel route on table 2200 + * Check that the kernel route is redistributed to r1 + """ + _test_add_and_check_kernel_route_on_table_2200() + + +def test_step3_remove_kernel_route_on_table_2200(): + """ + On r2, remove a kernel route on table 2200 + * Check that the kernel route is no more redistributed to r1 + """ + tgen = get_topogen() + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + + router_list = tgen.routers() + + step("r2, remove a kernel route on table 2200") + cmd = "ip route delete 172.31.0.10/32 via 172.31.1.10 table 2200" + tgen.net["r2"].cmd(cmd) + + _check_zebra_rib_r1(False) + + +def test_step4_add_kernel_route_on_table_2200(): + """ + On r2, add a kernel route on table 2200 + * Check that the kernel route is redistributed to r1 + """ + _test_add_and_check_kernel_route_on_table_2200() + + +def test_step5_no_redistribute_table_2200(): + """ + On r2, unconfigure the 'no redistribute' service + * Check that the 'redistribute' command is not configured + * Check that the kernel route is not redistributed to r1 + """ + tgen = get_topogen() + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + + tgen.gears["r2"].vtysh_cmd( + "configure terminal\nrouter bgp 65501\naddress-family ipv4 unicast\nno redistribute table-direct\n" + ) + + step("r2, check that the 'redistribute' command is not configured") + out = tgen.net["r2"].cmd( + "vtysh -c 'show running-config' | grep 'redistribute table-direct'" + ) + + if "redistribute" in out: + assert True, "r2, redistribute command still present" + + _check_zebra_rib_r1(False) + + +def test_step6_redistribute_table_2200(): + """ + On r2, configure the 'redistribute' service + * Check that the 'redistribute' command is configured + * Check that the kernel route is redistributed to r1 + """ + tgen = get_topogen() + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + + tgen.gears["r2"].vtysh_cmd( + "configure terminal\nrouter bgp 65501\naddress-family ipv4 unicast\nredistribute table-direct 2200\n" + ) + + step("r2, check that the 'redistribute' command is configured") + out = tgen.net["r2"].cmd( + "vtysh -c 'show running-config' | grep 'redistribute table-direct'" + ) + if "redistribute" not in out: + assert True, "r2, redistribute command still present" + + _check_zebra_rib_r1(True) + + +def test_step7_reset_bgp_instance_add_kernel_route_and_add_bgp(): + """ + On r2, remove BGP configuration, create a kernel route on table 2200, + then restore BGP configuration + * Check that the kernel route is redistributed to r1 + """ + + tgen = get_topogen() + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + + router_list = tgen.routers() + + router = tgen.gears["r2"] + step("r2, removing r2 BGP configuration") + router.vtysh_cmd("configure terminal\nno router bgp 65501\n") + + step("r2, adding new kernel route 172.31.0.15/32 on table 2200") + cmd = "ip route add 172.31.0.15/32 via 172.31.1.100 table 2200" + tgen.net["r2"].cmd(cmd) + + router = tgen.gears["r2"] + step("r2, restoring r2 BGP configuration") + tgen.net["r2"].cmd("vtysh -f {}".format(os.path.join(CWD, "r2/bgpd.conf"))) + + _check_zebra_rib_r1(True, with_second_route=True) + + +def test_memory_leak(): + "Run the memory leak test and report results." + tgen = get_topogen() + if not tgen.is_memleak_enabled(): + pytest.skip("Memory leak test/report is disabled") + + tgen.report_memory_leaks() + + +if __name__ == "__main__": + args = ["-s"] + sys.argv[1:] + sys.exit(pytest.main(args)) |