| #!/usr/bin/env python3 |
| # |
| # Copyright (c) 2021, The OpenThread Authors. |
| # All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are met: |
| # 1. Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # 2. Redistributions in binary form must reproduce the above copyright |
| # notice, this list of conditions and the following disclaimer in the |
| # documentation and/or other materials provided with the distribution. |
| # 3. Neither the name of the copyright holder nor the |
| # names of its contributors may be used to endorse or promote products |
| # derived from this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' |
| # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| # POSSIBILITY OF SUCH DAMAGE. |
| # |
| import logging |
| import unittest |
| |
| import config |
| import pktverify |
| from pktverify import packet_verifier, packet_filter, consts |
| import thread_cert |
| |
| # Test description: |
| # This test verifies that the Border Router will use the same RA parameters |
| # when there is already a running radvd service on the same host. |
| # |
| # Topology: |
| # ----------------(eth)-------------------- |
| # | | |
| # BR (Leader) HOST |
| # | |
| # ROUTER |
| # |
| |
| BR = 1 |
| ROUTER = 2 |
| HOST = 3 |
| |
| ON_LINK_PREFIX = 'fd00::/64' |
| |
| |
| class SingleBorderRouter(thread_cert.TestCase): |
| USE_MESSAGE_FACTORY = False |
| |
| TOPOLOGY = { |
| BR: { |
| 'name': 'BR', |
| 'allowlist': [ROUTER], |
| 'is_otbr': True, |
| 'version': '1.2', |
| }, |
| ROUTER: { |
| 'name': 'Router', |
| 'allowlist': [BR], |
| 'version': '1.2', |
| }, |
| HOST: { |
| 'name': 'Host', |
| 'is_host': True |
| }, |
| } |
| |
| def test(self): |
| br = self.nodes[BR] |
| router = self.nodes[ROUTER] |
| host = self.nodes[HOST] |
| |
| host.start(start_radvd=False) |
| self.simulator.go(5) |
| |
| br.start_radvd_service(prefix=ON_LINK_PREFIX, slaac=True) |
| self.simulator.go(5) |
| |
| br.start() |
| self.simulator.go(5) |
| self.assertEqual('leader', br.get_state()) |
| |
| router.start() |
| self.simulator.go(5) |
| self.assertEqual('router', router.get_state()) |
| |
| self.simulator.go(10) |
| self.collect_ipaddrs() |
| |
| logging.info("BR addrs: %r", br.get_addrs()) |
| logging.info("ROUTER addrs: %r", router.get_addrs()) |
| logging.info("HOST addrs: %r", host.get_addrs()) |
| |
| self.assertEqual(len(br.get_prefixes()), 1) |
| self.assertEqual(len(router.get_prefixes()), 1) |
| self.assertEqual(len(br.get_routes()), 1) |
| self.assertEqual(len(router.get_routes()), 1) |
| |
| self.assertEqual(len(br.get_ip6_address(config.ADDRESS_TYPE.OMR)), 1) |
| self.assertEqual(len(router.get_ip6_address(config.ADDRESS_TYPE.OMR)), 1) |
| |
| # radvd doesn't deprecates the PIO so that the Border Router will not |
| # advertise its own on-link prefix immediately. |
| self.assertEqual(len(host.get_ip6_address(config.ADDRESS_TYPE.ONLINK_ULA)), 1) |
| |
| self.assertTrue(router.ping(host.get_ip6_address(config.ADDRESS_TYPE.ONLINK_ULA)[0])) |
| self.assertTrue(host.ping(router.get_ip6_address(config.ADDRESS_TYPE.OMR)[0], backbone=True)) |
| |
| # Stop the radvd service and wait for the Border Router |
| # to reset the RA parameters. |
| br.stop_radvd_service() |
| self.simulator.go(15) |
| |
| self.assertEqual(len(br.get_prefixes()), 1) |
| self.assertEqual(len(router.get_prefixes()), 1) |
| self.assertEqual(len(br.get_routes()), 1) |
| self.assertEqual(len(router.get_routes()), 1) |
| |
| self.assertEqual(len(br.get_ip6_address(config.ADDRESS_TYPE.OMR)), 1) |
| self.assertEqual(len(router.get_ip6_address(config.ADDRESS_TYPE.OMR)), 1) |
| self.assertEqual(len(host.get_ip6_address(config.ADDRESS_TYPE.ONLINK_ULA)), 1) |
| |
| self.assertTrue(router.ping(host.get_ip6_address(config.ADDRESS_TYPE.ONLINK_ULA)[0])) |
| self.assertTrue(host.ping(router.get_ip6_address(config.ADDRESS_TYPE.OMR)[0], backbone=True)) |
| |
| self.collect_ipaddrs() |
| self.collect_rloc16s() |
| self.collect_rlocs() |
| self.collect_extra_vars() |
| |
| def verify(self, pv: pktverify.packet_verifier.PacketVerifier): |
| RA_OPT_TYPE_PIO = 3 |
| RA_OPT_TYPE_RIO = 24 |
| |
| pkts = pv.pkts |
| vars = pv.vars |
| pv.summary.show() |
| logging.info(f'vars = {vars}') |
| |
| # Ensure the topology is formed correctly |
| pv.verify_attached('Router', 'BR') |
| |
| # verify that radvd sends RA messages with PIO. |
| radvd_ra = pkts.filter_eth_src(vars['BR_ETH']) \ |
| .filter_icmpv6_nd_ra() \ |
| .filter(lambda p: RA_OPT_TYPE_PIO in p.icmpv6.opt.type) \ |
| .must_next() |
| |
| # Verify that the BR sends RA messages with the same parameters. |
| br_ra = pkts.filter_eth_src(vars['BR_ETH']) \ |
| .filter_icmpv6_nd_ra() \ |
| .filter(lambda p: RA_OPT_TYPE_RIO in p.icmpv6.opt.type) \ |
| .filter(lambda p: p.icmpv6.nd.ra.router_lifetime == radvd_ra.icmpv6.nd.ra.router_lifetime) \ |
| .filter(lambda p: p.icmpv6.nd.ra.retrans_timer == radvd_ra.icmpv6.nd.ra.retrans_timer) \ |
| .filter(lambda p: p.icmpv6.nd.ra.reachable_time == radvd_ra.icmpv6.nd.ra.reachable_time) \ |
| .must_next() |
| |
| # Verify that radvd sends at lease one RA message with zero Router Lifetime |
| # when it is stopped. |
| pkts.filter_eth_src(vars['BR_ETH']) \ |
| .filter_icmpv6_nd_ra() \ |
| .filter(lambda p: RA_OPT_TYPE_PIO in p.icmpv6.opt.type) \ |
| .filter(lambda p: p.icmpv6.nd.ra.router_lifetime == 0) \ |
| .must_next() |
| |
| # Verify that the BR forgets radvd's RA parameters. |
| pkts.filter_eth_src(vars['BR_ETH']) \ |
| .filter_icmpv6_nd_ra() \ |
| .filter(lambda p: RA_OPT_TYPE_RIO in p.icmpv6.opt.type) \ |
| .filter(lambda p: p.icmpv6.nd.ra.router_lifetime == 0) \ |
| .filter(lambda p: p.icmpv6.nd.ra.retrans_timer == 0) \ |
| .filter(lambda p: p.icmpv6.nd.ra.reachable_time == 0) \ |
| .must_next() |
| |
| # TODO: verify that the BR forgets the radvd's RA parameters in |
| # a period after radvd is force killed. |
| |
| |
| if __name__ == '__main__': |
| unittest.main() |
