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