206 lines
8.4 KiB
Python
206 lines
8.4 KiB
Python
#!/usr/bin/env python3
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#
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# Copyright (c) 2020, 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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import time
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import wpan
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from wpan import verify
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# -----------------------------------------------------------------------------------------------------------------------
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# Test description: This test covers behavior of device after trel network is temporarily disabled
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# and rediscovery of trel radio using probe mechanism.
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#
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# r1 ---------- r2
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# (15.4+trel) (15.4+trel)
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#
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# On r2 we disable trel temporarily.
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#
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test_name = __file__[:-3] if __file__.endswith('.py') else __file__
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print('-' * 120)
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print('Starting \'{}\''.format(test_name))
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# -----------------------------------------------------------------------------------------------------------------------
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# Creating `wpan.Nodes` instances
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speedup = 4
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wpan.Node.set_time_speedup_factor(speedup)
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r1 = wpan.Node(wpan.NODE_15_4_TREL)
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r2 = wpan.Node(wpan.NODE_15_4_TREL)
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c2 = wpan.Node(wpan.NODE_15_4)
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# -----------------------------------------------------------------------------------------------------------------------
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# Init all nodes
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wpan.Node.init_all_nodes()
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# -----------------------------------------------------------------------------------------------------------------------
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# Build network topology
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#
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r1.allowlist_node(r2)
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r2.allowlist_node(r1)
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r2.allowlist_node(c2)
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c2.allowlist_node(r2)
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r1.form("discover-by-rx")
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r2.join_node(r1, wpan.JOIN_TYPE_ROUTER)
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c2.join_node(r2, wpan.JOIN_TYPE_SLEEPY_END_DEVICE)
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# -----------------------------------------------------------------------------------------------------------------------
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# Test implementation
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WAIT_TIME = 5
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HIGH_PREFERENCE_THRESHOLD = 220
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MIN_PREFERENCE_THRESHOLD = 0
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r1_ext_address = r1.get(wpan.WPAN_EXT_ADDRESS)[1:-1]
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r1_rloc = int(r1.get(wpan.WPAN_THREAD_RLOC16), 16)
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r1_ml_address = r1.get(wpan.WPAN_IP6_MESH_LOCAL_ADDRESS)[1:-1]
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r2_ext_address = r2.get(wpan.WPAN_EXT_ADDRESS)[1:-1]
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r2_rloc = int(r2.get(wpan.WPAN_THREAD_RLOC16), 16)
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r2_ml_address = r2.get(wpan.WPAN_IP6_MESH_LOCAL_ADDRESS)[1:-1]
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# Wait for r2 to become router and r1 establishes a link with it
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def check_r1_router_table():
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router_table = wpan.parse_router_table_result(r1.get(wpan.WPAN_THREAD_ROUTER_TABLE))
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verify(len(router_table) == 2)
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for entry in router_table:
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verify(entry.rloc16 == r1_rloc or entry.is_link_established())
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wpan.verify_within(check_r1_router_table, WAIT_TIME)
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# Check that r1 detected both trel and 15.4 as supported radio by r2
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r1_radios = wpan.parse_list(r1.get(wpan.WPAN_OT_SUPPORTED_RADIO_LINKS))
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verify(
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len(r1_radios) == 2 and (wpan.RADIO_LINK_IEEE_802_15_4 in r1_radios) and (wpan.RADIO_LINK_TREL_UDP6 in r1_radios))
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r2_radios = wpan.parse_list(r2.get(wpan.WPAN_OT_SUPPORTED_RADIO_LINKS))
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verify(
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len(r2_radios) == 2 and (wpan.RADIO_LINK_IEEE_802_15_4 in r2_radios) and (wpan.RADIO_LINK_TREL_UDP6 in r2_radios))
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def check_r1_sees_r2_has_two_radio_links():
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r1_neighbor_radios = wpan.parse_multi_radio_result(r1.get(wpan.WPAN_OT_NEIGHBOR_TABLE_MULTI_RADIO_INFO))
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verify(len(r1_neighbor_radios) == 1)
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verify(len(r1_neighbor_radios[0].radios) == 2)
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wpan.verify_within(check_r1_sees_r2_has_two_radio_links, WAIT_TIME)
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# Send from r1 to r2 and verify that r1 prefers trel radio link for sending to r2.
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sender = r1.prepare_tx(r1_ml_address, r2_ml_address, "Hi r2 from r1", 5)
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recver = r2.prepare_rx(sender)
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wpan.Node.perform_async_tx_rx()
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verify(sender.was_successful)
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verify(recver.was_successful)
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r1_neighbor_radios = wpan.parse_multi_radio_result(r1.get(wpan.WPAN_OT_NEIGHBOR_TABLE_MULTI_RADIO_INFO))
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verify(len(r1_neighbor_radios) == 1)
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r2_radio_info = r1_neighbor_radios[0]
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verify(r2_radio_info.supports(wpan.RADIO_LINK_TREL_UDP6))
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verify(r2_radio_info.preference(wpan.RADIO_LINK_TREL_UDP6) >= HIGH_PREFERENCE_THRESHOLD)
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# Now disable trel link on r2 and send again. We expect that r1 would quickly learn that trel is
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# no longer supported by r2 and prefer 15.4 for tx to r2.
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r2.set(wpan.WPAN_OT_TREL_TEST_MODE_ENABLE, 'false')
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verify(r2.get(wpan.WPAN_OT_TREL_TEST_MODE_ENABLE) == 'false')
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sender = r1.prepare_tx(r1_ml_address, r2_ml_address, "Hi again r2 from r1", 5)
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wpan.Node.perform_async_tx_rx()
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verify(sender.was_successful)
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def check_r1_does_not_prefer_trel_for_r2():
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r1_neighbor_radios = wpan.parse_multi_radio_result(r1.get(wpan.WPAN_OT_NEIGHBOR_TABLE_MULTI_RADIO_INFO))
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verify(len(r1_neighbor_radios) == 1)
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r2_radio_info = r1_neighbor_radios[0]
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verify(r2_radio_info.supports(wpan.RADIO_LINK_TREL_UDP6))
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verify(r2_radio_info.preference(wpan.RADIO_LINK_TREL_UDP6) <= MIN_PREFERENCE_THRESHOLD)
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wpan.verify_within(check_r1_does_not_prefer_trel_for_r2, WAIT_TIME)
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# Check that we can send between r1 and r2 (now all tx should use 15.4)
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sender = r1.prepare_tx(r1_ml_address, r2_ml_address, "Hi on 15.4 r2 from r1", 5)
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recver = r2.prepare_rx(sender)
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wpan.Node.perform_async_tx_rx()
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verify(sender.was_successful)
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verify(recver.was_successful)
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r1_neighbor_radios = wpan.parse_multi_radio_result(r1.get(wpan.WPAN_OT_NEIGHBOR_TABLE_MULTI_RADIO_INFO))
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verify(len(r1_neighbor_radios) == 1)
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r2_radio_info = r1_neighbor_radios[0]
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verify(r2_radio_info.supports(wpan.RADIO_LINK_TREL_UDP6))
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verify(r2_radio_info.preference(wpan.RADIO_LINK_TREL_UDP6) <= MIN_PREFERENCE_THRESHOLD)
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verify(r2_radio_info.supports(wpan.RADIO_LINK_IEEE_802_15_4))
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verify(r2_radio_info.preference(wpan.RADIO_LINK_IEEE_802_15_4) >= HIGH_PREFERENCE_THRESHOLD)
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# Enable trel back on r2, start sending traffic from r1 to r2
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# The probe mechanism should kick and detect that r2 has trel again.
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r2.set(wpan.WPAN_OT_TREL_TEST_MODE_ENABLE, 'true')
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verify(r2.get(wpan.WPAN_OT_TREL_TEST_MODE_ENABLE) == 'true')
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sender = r1.prepare_tx(r1_ml_address, r2_ml_address, "Probing r2 from r1", 80)
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recver = r2.prepare_rx(sender)
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wpan.Node.perform_async_tx_rx()
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verify(sender.was_successful)
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verify(recver.was_successful)
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def check_r1_again_prefers_trel_for_r2():
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r1_neighbor_radios = wpan.parse_multi_radio_result(r1.get(wpan.WPAN_OT_NEIGHBOR_TABLE_MULTI_RADIO_INFO))
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verify(len(r1_neighbor_radios) == 1)
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r2_radio_info = r1_neighbor_radios[0]
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verify(r2_radio_info.supports(wpan.RADIO_LINK_TREL_UDP6))
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verify(r2_radio_info.preference(wpan.RADIO_LINK_TREL_UDP6) >= HIGH_PREFERENCE_THRESHOLD)
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wpan.verify_within(check_r1_again_prefers_trel_for_r2, WAIT_TIME)
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# -----------------------------------------------------------------------------------------------------------------------
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# Test finished
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wpan.Node.finalize_all_nodes()
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print('\'{}\' passed.'.format(test_name))
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