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190 lines
7.2 KiB
Python
Executable File
190 lines
7.2 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Copyright (c) 2021, The OpenThread Authors.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. Neither the name of the copyright holder nor the
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# names of its contributors may be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS'
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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import logging
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import unittest
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import config
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import pktverify
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from pktverify import packet_verifier, packet_filter, consts
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import thread_cert
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# Test description:
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# This test verifies that the Border Router will use the same RA parameters
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# when there is already a running radvd service on the same host.
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#
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# Topology:
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# ----------------(eth)--------------------
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# | |
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# BR (Leader) HOST
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# |
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# ROUTER
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#
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BR = 1
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ROUTER = 2
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HOST = 3
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ON_LINK_PREFIX = 'fd00::/64'
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class SingleBorderRouter(thread_cert.TestCase):
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USE_MESSAGE_FACTORY = False
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TOPOLOGY = {
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BR: {
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'name': 'BR',
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'allowlist': [ROUTER],
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'is_otbr': True,
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'version': '1.2',
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},
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ROUTER: {
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'name': 'Router',
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'allowlist': [BR],
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'version': '1.2',
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},
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HOST: {
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'name': 'Host',
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'is_host': True
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},
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}
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def test(self):
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br = self.nodes[BR]
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router = self.nodes[ROUTER]
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host = self.nodes[HOST]
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host.start(start_radvd=False)
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self.simulator.go(5)
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br.start_radvd_service(prefix=ON_LINK_PREFIX, slaac=True)
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self.simulator.go(5)
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br.start()
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self.simulator.go(config.LEADER_STARTUP_DELAY)
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self.assertEqual('leader', br.get_state())
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router.start()
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self.simulator.go(config.ROUTER_STARTUP_DELAY)
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self.assertEqual('router', router.get_state())
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self.simulator.go(config.BORDER_ROUTER_STARTUP_DELAY)
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self.collect_ipaddrs()
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logging.info("BR addrs: %r", br.get_addrs())
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logging.info("ROUTER addrs: %r", router.get_addrs())
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logging.info("HOST addrs: %r", host.get_addrs())
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self.assertEqual(len(br.get_netdata_omr_prefixes()), 1)
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self.assertEqual(len(router.get_netdata_omr_prefixes()), 1)
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self.assertEqual(len(br.get_netdata_non_nat64_routes()), 1)
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self.assertEqual(len(router.get_netdata_non_nat64_routes()), 1)
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self.assertEqual(len(br.get_ip6_address(config.ADDRESS_TYPE.OMR)), 1)
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self.assertEqual(len(router.get_ip6_address(config.ADDRESS_TYPE.OMR)), 1)
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# radvd doesn't deprecates the PIO so that the Border Router will not
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# advertise its own on-link prefix immediately.
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self.assertEqual(len(host.get_ip6_address(config.ADDRESS_TYPE.ONLINK_ULA)), 1)
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self.assertTrue(router.ping(host.get_ip6_address(config.ADDRESS_TYPE.ONLINK_ULA)[0]))
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self.assertTrue(host.ping(router.get_ip6_address(config.ADDRESS_TYPE.OMR)[0], backbone=True))
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# Stop the radvd service and wait for the Border Router
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# to reset the RA parameters.
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br.stop_radvd_service()
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self.simulator.go(15)
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self.assertEqual(len(br.get_netdata_omr_prefixes()), 1)
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self.assertEqual(len(router.get_netdata_omr_prefixes()), 1)
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self.assertEqual(len(br.get_netdata_non_nat64_routes()), 1)
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self.assertEqual(len(router.get_netdata_non_nat64_routes()), 1)
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self.assertEqual(len(br.get_ip6_address(config.ADDRESS_TYPE.OMR)), 1)
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self.assertEqual(len(router.get_ip6_address(config.ADDRESS_TYPE.OMR)), 1)
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self.assertEqual(len(host.get_ip6_address(config.ADDRESS_TYPE.ONLINK_ULA)), 1)
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self.assertTrue(router.ping(host.get_ip6_address(config.ADDRESS_TYPE.ONLINK_ULA)[0]))
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self.assertTrue(host.ping(router.get_ip6_address(config.ADDRESS_TYPE.OMR)[0], backbone=True))
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self.collect_ipaddrs()
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self.collect_rloc16s()
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self.collect_rlocs()
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self.collect_extra_vars()
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def verify(self, pv: pktverify.packet_verifier.PacketVerifier):
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RA_OPT_TYPE_PIO = 3
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RA_OPT_TYPE_RIO = 24
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pkts = pv.pkts
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vars = pv.vars
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pv.summary.show()
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logging.info(f'vars = {vars}')
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# Ensure the topology is formed correctly
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pv.verify_attached('Router', 'BR')
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# verify that radvd sends RA messages with PIO.
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radvd_ra = pkts.filter_eth_src(vars['BR_ETH']) \
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.filter_icmpv6_nd_ra() \
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.filter(lambda p: RA_OPT_TYPE_PIO in p.icmpv6.opt.type) \
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.must_next()
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# Verify that the BR sends RA messages with the same parameters.
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br_ra = pkts.filter_eth_src(vars['BR_ETH']) \
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.filter_icmpv6_nd_ra() \
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.filter(lambda p: RA_OPT_TYPE_RIO in p.icmpv6.opt.type) \
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.filter(lambda p: p.icmpv6.nd.ra.router_lifetime == radvd_ra.icmpv6.nd.ra.router_lifetime) \
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.filter(lambda p: p.icmpv6.nd.ra.retrans_timer == radvd_ra.icmpv6.nd.ra.retrans_timer) \
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.filter(lambda p: p.icmpv6.nd.ra.reachable_time == radvd_ra.icmpv6.nd.ra.reachable_time) \
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.must_next()
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# Verify that radvd sends at lease one RA message with zero Router Lifetime
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# when it is stopped.
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pkts.filter_eth_src(vars['BR_ETH']) \
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.filter_icmpv6_nd_ra() \
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.filter(lambda p: RA_OPT_TYPE_PIO in p.icmpv6.opt.type) \
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.filter(lambda p: p.icmpv6.nd.ra.router_lifetime == 0) \
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.must_next()
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# Verify that the BR forgets radvd's RA parameters.
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pkts.filter_eth_src(vars['BR_ETH']) \
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.filter_icmpv6_nd_ra() \
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.filter(lambda p: RA_OPT_TYPE_RIO in p.icmpv6.opt.type) \
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.filter(lambda p: p.icmpv6.nd.ra.router_lifetime == 0) \
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.filter(lambda p: p.icmpv6.nd.ra.retrans_timer == 0) \
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.filter(lambda p: p.icmpv6.nd.ra.reachable_time == 0) \
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.must_next()
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# TODO: verify that the BR forgets the radvd's RA parameters in
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# a period after radvd is force killed.
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if __name__ == '__main__':
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unittest.main()
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