From: Carmine Scarpitta Date: Thu, 20 Feb 2025 10:50:16 +0000 (+0100) Subject: tests: Add topotest to verify SRv6 routes with different encap behaviors X-Git-Url: https://git.puffer.fish/?a=commitdiff_plain;h=1ee54121a266e32779c553fdd9b36e07de0aa4da;p=mirror%2Ffrr.git tests: Add topotest to verify SRv6 routes with different encap behaviors This commit introduces a topotest to verify that staticd correctly programs SRv6 routes in the RIB for all supported encapsulation behaviors. Signed-off-by: Carmine Scarpitta --- diff --git a/tests/topotests/srv6_static_route_reduced/__init__.py b/tests/topotests/srv6_static_route_reduced/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/topotests/srv6_static_route_reduced/r1/frr.conf b/tests/topotests/srv6_static_route_reduced/r1/frr.conf new file mode 100644 index 0000000000..8018c1ddaf --- /dev/null +++ b/tests/topotests/srv6_static_route_reduced/r1/frr.conf @@ -0,0 +1,12 @@ +hostname r1 +! +log stdout notifications +log commands +! +ipv6 route fcbb:bbbb:1::/48 sr0 +ip route 192.0.2.1/32 sr0 segments fcbb:bbbb:1:2:3:4:5:6/fcbb:bbbb:7:8:fe00:: +ip route 192.0.2.2/32 sr0 segments fcbb:bbbb:1:2:3:4:5:6/fcbb:bbbb:7:8:fe00:: encap-behavior H_Encaps +ip route 192.0.2.3/32 sr0 segments fcbb:bbbb:1:2:3:4:5:6/fcbb:bbbb:7:8:fe00:: encap-behavior H_Encaps_Red +ipv6 route 2001:db8:1:1::1/128 sr0 segments fcbb:bbbb:1:2:3:4:5:6/fcbb:bbbb:7:8:fe00:: +ipv6 route 2001:db8:1:1::2/128 sr0 segments fcbb:bbbb:1:2:3:4:5:6/fcbb:bbbb:7:8:fe00:: encap-behavior H_Encaps +ipv6 route 2001:db8:1:1::3/128 sr0 segments fcbb:bbbb:1:2:3:4:5:6/fcbb:bbbb:7:8:fe00:: encap-behavior H_Encaps_Red diff --git a/tests/topotests/srv6_static_route_reduced/r1/setup.sh b/tests/topotests/srv6_static_route_reduced/r1/setup.sh new file mode 100644 index 0000000000..4b6cce89f8 --- /dev/null +++ b/tests/topotests/srv6_static_route_reduced/r1/setup.sh @@ -0,0 +1,2 @@ +ip link add sr0 type dummy +ip link set sr0 up diff --git a/tests/topotests/srv6_static_route_reduced/r1/show_ip_route.json b/tests/topotests/srv6_static_route_reduced/r1/show_ip_route.json new file mode 100644 index 0000000000..32e5e9e30d --- /dev/null +++ b/tests/topotests/srv6_static_route_reduced/r1/show_ip_route.json @@ -0,0 +1,83 @@ +{ + "192.0.2.1/32": [ + { + "prefix": "192.0.2.1/32", + "prefixLen": 32, + "protocol": "static", + "selected": true, + "destSelected": true, + "distance": 1, + "metric": 0, + "installed": true, + "nexthops": [ + { + "directlyConnected": true, + "active": true, + "weight": 1, + "seg6local": { + "action": "unspec" + }, + "seg6": [ + "fcbb:bbbb:1:2:3:4:5:6", + "fcbb:bbbb:7:8:fe00::" + ], + "srv6EncapBehavior": "H.Encaps" + } + ] + } + ], + "192.0.2.2/32": [ + { + "prefix": "192.0.2.2/32", + "prefixLen": 32, + "protocol": "static", + "selected": true, + "destSelected": true, + "distance": 1, + "metric": 0, + "installed": true, + "nexthops": [ + { + "directlyConnected": true, + "active": true, + "weight": 1, + "seg6local": { + "action": "unspec" + }, + "seg6": [ + "fcbb:bbbb:1:2:3:4:5:6", + "fcbb:bbbb:7:8:fe00::" + ], + "srv6EncapBehavior": "H.Encaps" + } + ] + } + ], + "192.0.2.3/32": [ + { + "prefix": "192.0.2.3/32", + "prefixLen": 32, + "protocol": "static", + "selected": true, + "destSelected": true, + "distance": 1, + "metric": 0, + "installed": true, + "nexthops": [ + { + "directlyConnected": true, + "active": true, + "weight": 1, + "seg6local": { + "action": "unspec" + }, + "seg6": [ + "fcbb:bbbb:1:2:3:4:5:6", + "fcbb:bbbb:7:8:fe00::" + ], + "srv6EncapBehavior": "H.Encaps.Red" + } + ] + } + ] +} diff --git a/tests/topotests/srv6_static_route_reduced/r1/show_ipv6_route.json b/tests/topotests/srv6_static_route_reduced/r1/show_ipv6_route.json new file mode 100644 index 0000000000..acec611197 --- /dev/null +++ b/tests/topotests/srv6_static_route_reduced/r1/show_ipv6_route.json @@ -0,0 +1,102 @@ +{ + "fcbb:bbbb:1::/48": [ + { + "prefix": "fcbb:bbbb:1::/48", + "prefixLen": 48, + "protocol": "static", + "selected": true, + "destSelected": true, + "distance": 1, + "metric": 0, + "installed": true, + "nexthops": [ + { + "directlyConnected": true, + "active": true, + "weight": 1 + } + ] + } + ], + "2001:db8:1:1::1/128": [ + { + "prefix": "2001:db8:1:1::1/128", + "prefixLen": 128, + "protocol": "static", + "selected": true, + "destSelected": true, + "distance": 1, + "metric": 0, + "installed": true, + "nexthops": [ + { + "directlyConnected": true, + "active": true, + "weight": 1, + "seg6local": { + "action": "unspec" + }, + "seg6": [ + "fcbb:bbbb:1:2:3:4:5:6", + "fcbb:bbbb:7:8:fe00::" + ], + "srv6EncapBehavior": "H.Encaps" + } + ] + } + ], + "2001:db8:1:1::2/128": [ + { + "prefix": "2001:db8:1:1::2/128", + "prefixLen": 128, + "protocol": "static", + "selected": true, + "destSelected": true, + "distance": 1, + "metric": 0, + "installed": true, + "nexthops": [ + { + "directlyConnected": true, + "active": true, + "weight": 1, + "seg6local": { + "action": "unspec" + }, + "seg6": [ + "fcbb:bbbb:1:2:3:4:5:6", + "fcbb:bbbb:7:8:fe00::" + ], + "srv6EncapBehavior": "H.Encaps" + } + ] + } + ], + "2001:db8:1:1::3/128": [ + { + "prefix": "2001:db8:1:1::3/128", + "prefixLen": 128, + "protocol": "static", + "selected": true, + "destSelected": true, + "distance": 1, + "metric": 0, + "installed": true, + "nexthops": [ + { + "directlyConnected": true, + "active": true, + "weight": 1, + "seg6local": { + "action": "unspec" + }, + "seg6": [ + "fcbb:bbbb:1:2:3:4:5:6", + "fcbb:bbbb:7:8:fe00::" + ], + "srv6EncapBehavior": "H.Encaps.Red" + } + ] + } + ] +} diff --git a/tests/topotests/srv6_static_route_reduced/test_srv6_static_route_reduced.py b/tests/topotests/srv6_static_route_reduced/test_srv6_static_route_reduced.py new file mode 100755 index 0000000000..e5fcf33933 --- /dev/null +++ b/tests/topotests/srv6_static_route_reduced/test_srv6_static_route_reduced.py @@ -0,0 +1,99 @@ +#!/usr/bin/env python +# SPDX-License-Identifier: ISC + +# +# test_srv6_static_route_reduced.py +# +# Copyright 2025 +# Carmine Scarpitta +# + +""" +test_srv6_static_route_reduced.py: +Test for SRv6 static route on zebra +""" + +import os +import sys +import json +import pytest +import functools + +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, get_topogen +from lib.topolog import logger +from lib.common_config import required_linux_kernel_version + +pytestmark = [pytest.mark.staticd] + + +def open_json_file(filename): + try: + with open(filename, "r") as f: + return json.load(f) + except IOError: + assert False, "Could not read file {}".format(filename) + + +def setup_module(mod): + result = required_linux_kernel_version("6.0") + if result is not True: + pytest.skip("Kernel requirements are not met, kernel version should be >=6.0") + + tgen = Topogen({None: "r1"}, mod.__name__) + tgen.start_topology() + for rname, router in tgen.routers().items(): + router.run("/bin/bash {}/{}/setup.sh".format(CWD, rname)) + router.load_frr_config("frr.conf") + tgen.start_router() + + +def teardown_module(): + tgen = get_topogen() + tgen.stop_topology() + + +def test_srv6_static_route(): + tgen = get_topogen() + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + router = tgen.gears["r1"] + + def _check_rib(router, expected_route_file): + logger.info("checking Zebra RIB") + output = json.loads(router.vtysh_cmd("show ip route static json")) + expected = open_json_file("{}/{}".format(CWD, expected_route_file)) + return topotest.json_cmp(output, expected) + + def check_rib(router, expected_file): + func = functools.partial(_check_rib, router, expected_file) + _, result = topotest.run_and_expect(func, None, count=20, wait=3) + assert result is None, "Failed" + + def _check_rib_v6(router, expected_route_file): + logger.info("checking Zebra RIB") + output = json.loads(router.vtysh_cmd("show ipv6 route static json")) + expected = open_json_file("{}/{}".format(CWD, expected_route_file)) + return topotest.json_cmp(output, expected) + + def check_rib_v6(router, expected_file): + func = functools.partial(_check_rib_v6, router, expected_file) + _, result = topotest.run_and_expect(func, None, count=20, wait=3) + assert result is None, "Failed" + + # FOR DEVELOPER: + # If you want to stop some specific line and start interactive shell, + # please use tgen.mininet_cli() to start it. + + logger.info("Test for SRv6 route configuration") + check_rib(router, "r1/show_ip_route.json") + check_rib_v6(router, "r1/show_ipv6_route.json") + + +if __name__ == "__main__": + args = ["-s"] + sys.argv[1:] + sys.exit(pytest.main(args))