+++ /dev/null
-#!/usr/bin/env python
-# SPDX-License-Identifier: ISC
-
-#
-# test_ospf_multi_instance.py
-#
-# Copyright (c) 2024 LabN Consulting
-# Acee Lindem
-#
-
-import os
-import sys
-from functools import partial
-import pytest
-
-# pylint: disable=C0413
-# Import topogen and topotest helpers
-from lib import topotest
-from lib.topogen import Topogen, TopoRouter, get_topogen
-from lib.topolog import logger
-
-from lib.common_config import (
- step,
- create_interface_in_kernel,
-)
-
-
-"""
-test_ospf_metric_propagation.py: Test OSPF/BGP metric propagation
-"""
-
-TOPOLOGY = """
-
- +---------+ +--------------------+ +---------+
- | r1 | | r2 | r2 | | r3 |
- | | | ospf 1 | ospf 2 | | |
- | 1.1.1.1 | eth0 eth0| 2.2.2.1 | 2.2.2.2 |eth1 eth0| 3.3.3.1 |
- | +-------------+ | +-------------+ |
- | | 10.1.1.0/24 | | | 10.1.2.0/24 | |
- +---------+ +--------------------+ +---------+
-
-
-"""
-
-# Save the Current Working Directory to find configuration files.
-CWD = os.path.dirname(os.path.realpath(__file__))
-sys.path.append(os.path.join(CWD, "../"))
-
-# Required to instantiate the topology builder class.
-
-pytestmark = [pytest.mark.ospfd, pytest.mark.bgpd]
-
-
-def build_topo(tgen):
- "Build function"
-
- # Create 3 routers
- tgen.add_router("r1")
- tgen.add_router("r2")
- tgen.add_router("r3")
-
- # Interconect router 1, 2 (0)
- switch = tgen.add_switch("s1-1-2")
- switch.add_link(tgen.gears["r1"])
- switch.add_link(tgen.gears["r2"])
-
- # Interconect router 2, 3 (1)
- switch = tgen.add_switch("s2-2-3")
- switch.add_link(tgen.gears["r2"])
- switch.add_link(tgen.gears["r3"])
-
- # Add more loopbacks to r2
- create_interface_in_kernel(
- tgen, "r2", "lo1", "2.2.2.1", netmask="255.255.255.255", create=True
- )
- create_interface_in_kernel(
- tgen, "r2", "lo2", "2.2.2.2", netmask="255.255.255.255", create=True
- )
-
-
-def setup_module(mod):
- logger.info("OSPF Multi-Instance:\n {}".format(TOPOLOGY))
-
- tgen = Topogen(build_topo, mod.__name__)
- tgen.start_topology()
-
- # Starting Routers
- router_list = tgen.routers()
-
- for rname, router in router_list.items():
- logger.info("Loading router %s" % rname)
- router.load_frr_config(os.path.join(CWD, "{}/frr.conf".format(rname)))
-
- # Initialize all routers.
- tgen.start_router()
-
-
-def teardown_module():
- "Teardown the pytest environment"
- tgen = get_topogen()
- tgen.stop_topology()
-
-
-def test_multi_instance_default_origination():
- tgen = get_topogen()
-
- if tgen.routers_have_failure():
- pytest.skip("Skipped because of router(s) failure")
-
- step("Configure a local default route")
- r1 = tgen.gears["r1"]
- r1.vtysh_cmd("conf t\nip route 0.0.0.0/0 Null0")
-
- step("Verify the R1 configuration and install of 'ip route 0.0.0.0/0 Null0'")
- prefix_suppression_cfg = (
- tgen.net["r1"]
- .cmd('vtysh -c "show running" | grep "^ip route 0.0.0.0/0 Null0"')
- .rstrip()
- )
- assertmsg = "'ip route 0.0.0.0/0 Null0' applied, but not present in configuration"
- assert prefix_suppression_cfg == "ip route 0.0.0.0/0 Null0", assertmsg
-
- input_dict = {
- "0.0.0.0/0": [
- {
- "prefix": "0.0.0.0/0",
- "prefixLen": 0,
- "protocol": "static",
- "nexthops": [
- {
- "blackhole": True,
- }
- ],
- }
- ]
- }
- test_func = partial(
- topotest.router_json_cmp, r1, "show ip route 0.0.0.0/0 json", input_dict
- )
- _, result = topotest.run_and_expect(test_func, None, count=60, wait=1)
- assertmsg = "0.0.0.0/0 not installed on router r1"
- assert result is None, assertmsg
-
- step(
- "Verify the R1 configuration and advertisement of 'default-information originate'"
- )
- r1.vtysh_cmd("conf t\nrouter ospf\n default-information originate")
-
- input_dict = {
- "asExternalLinkStates": [
- {
- "lsaType": "AS-external-LSA",
- "linkStateId": "0.0.0.0",
- "advertisingRouter": "1.1.1.1",
- "networkMask": 0,
- "metricType": "E2 (Larger than any link state path)",
- "metric": 10,
- "forwardAddress": "0.0.0.0",
- "externalRouteTag": 0,
- }
- ]
- }
- test_func = partial(
- topotest.router_json_cmp, r1, "show ip ospf database json", input_dict
- )
-
- r2 = tgen.gears["r2"]
- step("Verify the OSPF instance 1 installation of default route on router 2")
- input_dict = {
- "0.0.0.0/0": [
- {
- "prefix": "0.0.0.0/0",
- "prefixLen": 0,
- "protocol": "ospf",
- "instance": 1,
- "nexthops": [
- {
- "ip": "10.1.1.1",
- "interfaceName": "r2-eth0",
- }
- ],
- }
- ]
- }
- test_func = partial(
- topotest.router_json_cmp, r2, "show ip route 0.0.0.0/0 json", input_dict
- )
- _, result = topotest.run_and_expect(test_func, None, count=60, wait=1)
- assertmsg = "0.0.0.0/0 not installed on router r2"
- assert result is None, assertmsg
-
- step("Configure OSPF 'default-intformation originate' on router r2 instance 2")
- r2.vtysh_cmd("conf t\nrouter ospf 2\n default-information originate")
-
- step("Verify r2 instance 2 AS-External default origination")
- input_dict = {
- "ospfInstance": 2,
- "routerId": "2.2.2.2",
- "asExternalLinkStates": [
- {
- "lsaType": "AS-external-LSA",
- "linkStateId": "0.0.0.0",
- "advertisingRouter": "2.2.2.2",
- "networkMask": 0,
- "metricType": "E2 (Larger than any link state path)",
- "tos": 0,
- "metric": 10,
- "forwardAddress": "0.0.0.0",
- "externalRouteTag": 0,
- }
- ],
- }
- test_func = partial(
- topotest.router_json_cmp,
- r2,
- "show ip ospf 2 database external json",
- input_dict,
- )
- _, result = topotest.run_and_expect(test_func, None, count=60, wait=1)
- assertmsg = "AS-External default not originated by router r2 OSPF instance 2"
- assert result is None, assertmsg
-
- step("Update the OSPF instance 2 distance so it will be preferred over instance 1")
- r2.vtysh_cmd("conf t\nrouter ospf 2\n distance 15")
-
- step("Generate a default route from OSPF on r3")
- r3 = tgen.gears["r3"]
- r3.vtysh_cmd("conf t\nrouter ospf\n default-information originate")
- r3.vtysh_cmd("conf t\nip route 0.0.0.0/0 Null0")
-
- step("Verify r3 AS-External default origination on r2")
- input_dict = {
- "ospfInstance": 2,
- "routerId": "2.2.2.2",
- "asExternalLinkStates": [
- {
- "lsaType": "AS-external-LSA",
- "linkStateId": "0.0.0.0",
- "advertisingRouter": "3.3.3.1",
- "length": 36,
- "networkMask": 0,
- "metricType": "E2 (Larger than any link state path)",
- "tos": 0,
- "metric": 10,
- "forwardAddress": "0.0.0.0",
- "externalRouteTag": 0,
- }
- ],
- }
- test_func = partial(
- topotest.router_json_cmp,
- r2,
- "show ip ospf 2 database external json",
- input_dict,
- )
- _, result = topotest.run_and_expect(test_func, None, count=60, wait=1)
- assertmsg = "AS-External default not originated by router r3 OSPF"
- assert result is None, assertmsg
-
- step("Verify r3's default installed by OSPF instance 2 is preferred on r2")
- input_dict = {
- "0.0.0.0/0": [
- {
- "prefix": "0.0.0.0/0",
- "prefixLen": 0,
- "protocol": "ospf",
- "instance": 2,
- "distance": 15,
- "nexthops": [
- {
- "ip": "10.1.2.3",
- "interfaceName": "r2-eth1",
- }
- ],
- }
- ]
- }
- test_func = partial(
- topotest.router_json_cmp, r2, "show ip route 0.0.0.0/0 json", input_dict
- )
- _, result = topotest.run_and_expect(test_func, None, count=60, wait=1)
- assertmsg = "0.0.0.0/0 from r3 not installed on router r2"
- assert result is None, assertmsg
-
- step(
- "Verify that r2's OSPF instance 2 AS-External LSA default is flushed due to default from r3"
- )
- input_dict = {
- "ospfInstance": 2,
- "routerId": "2.2.2.2",
- "asExternalLinkStates": [
- {
- "lsaAge": 3600,
- "lsaType": "AS-external-LSA",
- "linkStateId": "0.0.0.0",
- "advertisingRouter": "2.2.2.2",
- "networkMask": 0,
- "metricType": "E2 (Larger than any link state path)",
- "tos": 0,
- "metric": 10,
- "forwardAddress": "0.0.0.0",
- "externalRouteTag": 0,
- }
- ],
- }
- test_func = partial(
- topotest.router_json_cmp,
- r2,
- "show ip ospf 2 database external json",
- input_dict,
- )
- _, result = topotest.run_and_expect(test_func, None, count=60, wait=1)
- assertmsg = "AS-External default not flushed by router r2 OSPF instance 2"
- assert result is None, assertmsg
-
- step("Remove r3's default route and verify that its advertisement is flushed")
- r3.vtysh_cmd("conf t\nno ip route 0.0.0.0/0 Null0")
- input_dict = {
- "routerId": "3.3.3.1",
- "asExternalLinkStates": [
- {
- "lsaAge": 3600,
- "lsaType": "AS-external-LSA",
- "linkStateId": "0.0.0.0",
- "advertisingRouter": "3.3.3.1",
- "networkMask": 0,
- "metricType": "E2 (Larger than any link state path)",
- "tos": 0,
- "metric": 10,
- "forwardAddress": "0.0.0.0",
- "externalRouteTag": 0,
- }
- ],
- }
- test_func = partial(
- topotest.router_json_cmp, r3, "show ip ospf database external json", input_dict
- )
- _, result = topotest.run_and_expect(test_func, None, count=60, wait=1)
- assertmsg = "AS-External default not flushed by router r3 OSPF"
- assert result is None, assertmsg
-
- step(
- "Verify that r2's OSPF instance 2 AS-External default is advertised and installed by r3"
- )
- input_dict = {
- "routerId": "3.3.3.1",
- "asExternalLinkStates": [
- {
- "lsaType": "AS-external-LSA",
- "linkStateId": "0.0.0.0",
- "advertisingRouter": "2.2.2.2",
- "networkMask": 0,
- "metricType": "E2 (Larger than any link state path)",
- "tos": 0,
- "metric": 10,
- "forwardAddress": "0.0.0.0",
- "externalRouteTag": 0,
- }
- ],
- }
- test_func = partial(
- topotest.router_json_cmp, r3, "show ip ospf database external json", input_dict
- )
- assertmsg = "AS-External default not originated by r2 OSPF instance 2"
- assert result is None, assertmsg
-
- step("Verify r2's OSPF instance 2 is AS-External default is installed on r3")
- input_dict = {
- "0.0.0.0/0": [
- {
- "prefix": "0.0.0.0/0",
- "prefixLen": 0,
- "protocol": "ospf",
- "distance": 20,
- "nexthops": [
- {
- "ip": "10.1.2.2",
- "interfaceName": "r3-eth0",
- }
- ],
- }
- ]
- }
- test_func = partial(
- topotest.router_json_cmp, r3, "show ip route 0.0.0.0/0 json", input_dict
- )
- _, result = topotest.run_and_expect(test_func, None, count=60, wait=1)
- assertmsg = "0.0.0.0/0 from router r2 not installed on r3"
- assert result is None, assertmsg
-
-
-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))
projects / matthieu / frr.git / commitdiff