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125 lines
4.3 KiB
Python
Executable File
125 lines
4.3 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Copyright (c) 2024, 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 ipaddress
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import typing
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import unittest
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import config
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import thread_cert
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# Test description:
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#
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# This test verifies DHCP6 PD pauses requesting PD prefix when there is another BR advertising PD prefix.
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#
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LEADER = 1
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ROUTER = 2
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class TestDhcp6Pd(thread_cert.TestCase):
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SUPPORT_NCP = False
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USE_MESSAGE_FACTORY = False
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TOPOLOGY = {
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LEADER: {
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'name': 'Leader',
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'allowlist': [ROUTER],
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'is_otbr': True,
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'mode': 'rdn',
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},
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ROUTER: {
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'name': 'Router',
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'allowlist': [LEADER],
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'is_otbr': True,
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'mode': 'rdn',
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},
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}
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def test(self):
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leader = self.nodes[LEADER]
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router = self.nodes[ROUTER]
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#---------------------------------------------------------------
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# Start the server & client devices.
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# Case 1: Only 1 BR receives PD prefix
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leader.start()
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self.simulator.go(config.LEADER_STARTUP_DELAY)
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self.assertEqual(leader.get_state(), 'leader')
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leader.pd_set_enabled(True)
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router.start()
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self.simulator.go(config.ROUTER_STARTUP_DELAY)
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self.assertEqual(router.get_state(), 'router')
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router.pd_set_enabled(True)
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leader.start_pd_radvd_service("2001:db8:abcd:1234::/64")
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self.simulator.go(30)
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self.assertSetEqual({leader.pd_state, router.pd_state}, {"running", "idle"})
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self.assertEqual(leader.pd_get_prefix(), "2001:db8:abcd:1234::/64")
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# Case 2: More than one BR receives PD prefix
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# The BR with "smaller" PD prefix wins
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# Clean up and ensure no prefix is currently published.
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leader.pd_set_enabled(False)
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router.pd_set_enabled(False)
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self.simulator.go(30)
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leader.start_pd_radvd_service("2001:db8:abcd:1234::/64")
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router.start_pd_radvd_service("2001:db8:1234:abcd::/64")
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leader.pd_set_enabled(True)
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router.pd_set_enabled(True)
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self.simulator.go(30)
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self.assertSetEqual({leader.pd_state, router.pd_state}, {"running", "idle"})
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# Case 3: When the other BR lost PD prefix, the remaining BR should try to request one.
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if leader.pd_state == 'running':
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br_to_stop = leader
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br_to_continue = router
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expected_prefix = "2001:db8:1234:abcd::/64"
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else:
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br_to_stop = router
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br_to_continue = leader
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expected_prefix = "2001:db8:abcd:1234::/64"
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br_to_stop.pd_set_enabled(False)
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self.simulator.go(30)
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self.assertEqual(br_to_continue.pd_state, "running")
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self.assertEqual(br_to_continue.pd_get_prefix(), expected_prefix)
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if __name__ == '__main__':
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unittest.main()
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