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119 lines
4.1 KiB
Python
Executable File
119 lines
4.1 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 unittest
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import thread_cert
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import config
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import pktverify
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from pktverify.consts import MA1
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# Test description:
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# The purpose of this test case is to verify that a Border Router device is able to properly
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# forward traffic in response to multicast destination when it comes from another BBR.
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#
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# Topology:
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# ----------------(eth)------------------
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# | | |
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# BR1 (Leader) ------ TD HOST
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#
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BR_1 = 1
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TD = 2
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HOST = 3
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class ManualMulticastAddressConfig(thread_cert.TestCase):
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USE_MESSAGE_FACTORY = False
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TOPOLOGY = {
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BR_1: {
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'name': 'BR_1',
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'is_otbr': True,
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'version': '1.2',
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},
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TD: {
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'name': 'TD',
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'is_otbr': True,
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'router_eligible': False,
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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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br1 = self.nodes[BR_1]
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td = self.nodes[TD]
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host = self.nodes[HOST]
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br1.start()
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self.simulator.go(config.LEADER_STARTUP_DELAY)
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self.assertEqual('leader', br1.get_state())
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self.assertTrue(br1.is_primary_backbone_router)
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td.start()
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self.simulator.go(5)
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self.assertEqual('child', td.get_state())
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# TD registers for multicast address, MA1, at BR_1.
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td.add_ipmaddr_tun(MA1)
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self.simulator.go(10)
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# Host sends a ping packet to the multicast address, MA1. TD should
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# respond to the ping request.
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self.assertTrue(
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host.ping(MA1, backbone=True, ttl=10, interface=host.get_ip6_address(config.ADDRESS_TYPE.ONLINK_ULA)[0]))
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self.simulator.go(5)
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def verify(self, pv: pktverify.packet_verifier.PacketVerifier):
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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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# 1. Host sends a ping packet to the multicast address, MA1.
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_pkt = pkts.filter_eth_src(vars['Host_ETH']) \
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.filter_ipv6_dst(MA1) \
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.filter_ping_request() \
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.must_next()
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# 1. TD receives the multicast ping packet and sends a ping response
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# packet back to Host.
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# TD receives the MPL packet containing an encapsulated ping packet to
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# MA1, sent by Host, and unicasts a ping response packet back to Host.
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pkts.filter_ipv6_dst(_pkt.ipv6.src) \
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.filter_ping_reply(identifier=_pkt.icmpv6.echo.identifier) \
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.must_next()
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if __name__ == '__main__':
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unittest.main()
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