From a57445cca1f9924cb9c6a5a8f4f0bbf616ff4270 Mon Sep 17 00:00:00 2001 From: Jonathan Hui Date: Wed, 4 Mar 2026 22:09:58 -0600 Subject: [PATCH] [nexus] add test 1.2.LP.5.3.6 for SSED to MED transition (#12610) This commit adds Nexus test case 1.2.LP.5.3.6, which validates that a Router can support a child transitioning from a Synchronized Sleepy End Device (SSED) to a Minimal End Device (MED) and back. The test procedure involves: - Forming a network with a Leader, DUT (Router), and SSED child. - Verifying SSED attachment and initial CSL-based connectivity. - Transitioning the child to MED mode and verifying the corresponding MLE Child Update exchange and connectivity. - Transitioning the child back to SSED mode and verifying that CSL synchronization is resumed. Changes: - Implement tests/nexus/test_1_2_LP_5_3_6.cpp for test execution. - Implement tests/nexus/verify_1_2_LP_5_3_6.py for pcap verification, with logic to distinguish between synchronization and polling Data Requests. - Update tests/nexus/CMakeLists.txt to include the new test. - Update tests/nexus/run_nexus_tests.sh to add the test to the default test list. --- tests/nexus/CMakeLists.txt | 1 + tests/nexus/run_nexus_tests.sh | 1 + tests/nexus/test_1_2_LP_5_3_6.cpp | 301 +++++++++++++++++++++++++++++ tests/nexus/verify_1_2_LP_5_3_6.py | 242 +++++++++++++++++++++++ 4 files changed, 545 insertions(+) create mode 100644 tests/nexus/test_1_2_LP_5_3_6.cpp create mode 100644 tests/nexus/verify_1_2_LP_5_3_6.py diff --git a/tests/nexus/CMakeLists.txt b/tests/nexus/CMakeLists.txt index cc93382db..099d01ffb 100644 --- a/tests/nexus/CMakeLists.txt +++ b/tests/nexus/CMakeLists.txt @@ -220,6 +220,7 @@ ot_nexus_test(1_2_LP_5_3_2 "cert;nexus") ot_nexus_test(1_2_LP_5_3_3 "cert;nexus") ot_nexus_test(1_2_LP_5_3_4 "cert;nexus") ot_nexus_test(1_2_LP_5_3_5 "cert;nexus") +ot_nexus_test(1_2_LP_5_3_6 "cert;nexus") # Misc tests ot_nexus_test(border_admitter "core;nexus") diff --git a/tests/nexus/run_nexus_tests.sh b/tests/nexus/run_nexus_tests.sh index 09a771f69..0259ba1ba 100755 --- a/tests/nexus/run_nexus_tests.sh +++ b/tests/nexus/run_nexus_tests.sh @@ -155,6 +155,7 @@ DEFAULT_TESTS=( "1_2_LP_5_3_3" "1_2_LP_5_3_4" "1_2_LP_5_3_5" + "1_2_LP_5_3_6" ) # Use provided arguments or the default test list diff --git a/tests/nexus/test_1_2_LP_5_3_6.cpp b/tests/nexus/test_1_2_LP_5_3_6.cpp new file mode 100644 index 000000000..0b76d238e --- /dev/null +++ b/tests/nexus/test_1_2_LP_5_3_6.cpp @@ -0,0 +1,301 @@ +/* + * Copyright (c) 2026, 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. + */ + +#include + +#include "platform/nexus_core.hpp" +#include "platform/nexus_node.hpp" + +namespace ot { +namespace Nexus { + +/** + * Time to advance for a node to form a network and become leader, in milliseconds. + */ +static constexpr uint32_t kFormNetworkTime = 13 * 1000; + +/** + * Time to advance for a node to join as a child and upgrade to a router, in milliseconds. + */ +static constexpr uint32_t kAttachToRouterTime = 200 * 1000; + +/** + * Time to advance for a node to join as a SSED, in milliseconds. + */ +static constexpr uint32_t kAttachAsSsedTime = 20 * 1000; + +/** + * Time to advance for a node to transition between modes, in milliseconds. + */ +static constexpr uint32_t kTransitionTime = 10 * 1000; + +/** + * Time to advance for the network to stabilize, in milliseconds. + */ +static constexpr uint32_t kStabilizationTime = 10 * 1000; + +/** + * Payload size for a standard ICMPv6 Echo Request. + */ +static constexpr uint16_t kEchoPayloadSize = 10; + +/** + * Default hop limit for IPv6 packets. + */ +static constexpr uint8_t kDefaultHopLimit = 64; + +/** + * ICMPv6 Echo Request identifier for initial connectivity check. + */ +static constexpr uint16_t kEchoIdInitial = 1; + +/** + * ICMPv6 Echo Request identifier for connectivity check in MED mode. + */ +static constexpr uint16_t kEchoIdAsMed = 2; + +/** + * ICMPv6 Echo Request identifier for connectivity check after returning to SSED mode. + */ +static constexpr uint16_t kEchoIdAsSsed = 3; + +/** + * CSL period in milliseconds. + */ +static constexpr uint32_t kCslPeriodMs = 500; + +/** + * CSL timeout in seconds. + */ +static constexpr uint32_t kCslTimeoutSec = 20; + +void Test1_2_LP_5_3_6(void) +{ + /** + * 5.3.6 Router supports SSED transition to MED + * + * 5.3.6.1 Topology + * - Leader + * - Router_1 (DUT) + * - SSED_1 + * + * 5.3.6.2 Purpose & Description + * The purpose of this test case is to validate that a Router can support a child transitioning from a SSED to a + * MED and back. + * + * Spec Reference | V1.2 Section + * ----------------------------------------|------------- + * Router supports SSED transition to MED | 4.6.5.2 + */ + + Core nexus; + + Node &leader = nexus.CreateNode(); + Node &router1 = nexus.CreateNode(); + Node &ssed1 = nexus.CreateNode(); + + leader.SetName("LEADER"); + router1.SetName("ROUTER_1"); + ssed1.SetName("SSED_1"); + + nexus.AdvanceTime(0); + + Instance::SetLogLevel(kLogLevelNote); + + /** + * Step 0: SSED_1 + * - Description: Preconditions: Set CSL Synchronized Timeout = 20s, Set CSL Period = 500ms. + * - Pass Criteria: N/A + */ + Log("Step 0: SSED_1"); + + /** + * Step 1: All + * - Description: Topology formation: Leader, DUT, SSED_1. + * - Pass Criteria: N/A + */ + Log("Step 1: All"); + + /** Use AllowList feature to specify links between nodes. */ + leader.AllowList(router1); + router1.AllowList(leader); + router1.AllowList(ssed1); + ssed1.AllowList(router1); + + leader.Form(); + nexus.AdvanceTime(kFormNetworkTime); + VerifyOrQuit(leader.Get().IsLeader()); + + router1.Join(leader); + nexus.AdvanceTime(kAttachToRouterTime); + VerifyOrQuit(router1.Get().IsRouter()); + + /** + * Step 2: SSED_1 + * - Description: Automatically attaches to the DUT and establishes CSL synchronization. + * - Pass Criteria: + * - 2.1: The DUT MUST send MLE Child ID Response to SSED_1. + * - 2.2: The DUT MUST unicast MLE Child Update Response to SSED_1. + */ + Log("Step 2: SSED_1"); + + ssed1.Join(router1, Node::kAsSed); + nexus.AdvanceTime(kAttachAsSsedTime); + VerifyOrQuit(ssed1.Get().IsAttached()); + VerifyOrQuit(ssed1.Get().GetParent().GetExtAddress() == router1.Get().GetExtAddress()); + + ssed1.Get().SetCslPeriod(kCslPeriodMs * 1000 / OT_US_PER_TEN_SYMBOLS); + ssed1.Get().SetCslTimeout(kCslTimeoutSec); + nexus.AdvanceTime(kStabilizationTime); + + /** + * Step 3: Leader + * - Description: Harness verifies connectivity by instructing the device to send an ICMPv6 Echo Request to the + * SSED mesh-local address. + * - Pass Criteria: + * - 3.1: SSED_1 MUST NOT send a MAC Data Request prior to receiving the ICMPv6 Echo Request from the DUT. + */ + Log("Step 3: Leader"); + + /** + * Step 4: SSED_1 + * - Description: Automatically replies with ICMPv6 Echo Reply. + * - Pass Criteria: Verify that the SSED replies with an ICMPv6 Echo Reply and is received by the Router. + */ + Log("Step 4: SSED_1"); + + leader.SendEchoRequest(ssed1.Get().GetMeshLocalEid(), kEchoIdInitial, kEchoPayloadSize, kDefaultHopLimit); + nexus.AdvanceTime(kStabilizationTime); + + /** + * Step 5: SSED_1 (MED_1) + * - Description: Harness instructs the device to transition to a MED and send an MLE Child Update Request and + * properly sets the Mode TLV. + * - Pass Criteria: N/A + */ + Log("Step 5: SSED_1 (MED_1)"); + + { + Mle::DeviceMode mode; + mode.Set(Mle::DeviceMode::kModeRxOnWhenIdle | Mle::DeviceMode::kModeFullNetworkData); + SuccessOrQuit(ssed1.Get().SetDeviceMode(mode)); + } + + /** + * Step 6: Router_1 (DUT) + * - Description: Automatically responds with a MLE Child Update Response. + * - Pass Criteria: + * - 6.1: The DUT MUST unicast MLE Child Update Response to SSED_1, including the following: + * - Mode TLV + * - R bit = 1 + * - D bit = 0 + */ + Log("Step 6: Router_1 (DUT)"); + + nexus.AdvanceTime(kTransitionTime); + + /** + * Step 7: Leader + * - Description: Harness verifies connectivity by instructing the device to send an ICMPv6 Echo Request to + * SSED_1’s mesh-local address. + * - Pass Criteria: + * - 7.1: The DUT MUST forward the ICMPv6 Echo Reply from the SSED to the Leader. + */ + Log("Step 7: Leader"); + + leader.SendEchoRequest(ssed1.Get().GetMeshLocalEid(), kEchoIdAsMed, kEchoPayloadSize, kDefaultHopLimit); + nexus.AdvanceTime(kStabilizationTime); + + /** + * Step 8: MED_1 (SSED_1) + * - Description: Harness instructs the device to transition back to a SSED and send an MLE Child Update + * Request. + * - Pass Criteria: N/A + */ + Log("Step 8: MED_1 (SSED_1)"); + + { + Mle::DeviceMode mode; + mode.Set(Mle::DeviceMode::kModeFullNetworkData); + SuccessOrQuit(ssed1.Get().SetDeviceMode(mode)); + } + + /** + * Step 9: Router_1 (DUT) + * - Description: Automatically responds with a MLE Child Update Response. + * - Pass Criteria: + * - 9.1: The DUT MUST unicast MLE Child Update Response to SSED_1, including the following: + * - Mode TLV + * - R bit set = 0 + * - D bit set = 0 + */ + Log("Step 9: Router_1 (DUT)"); + + nexus.AdvanceTime(kTransitionTime); + + /** + * Step 10: SSED_1 + * - Description: Automatically begins sending synchronization messages containing CSL IEs. + * - Pass Criteria: N/A + */ + Log("Step 10: SSED_1"); + + nexus.AdvanceTime(kStabilizationTime); + + /** + * Step 11: Leader + * - Description: Harness verifies connectivity by instructing the device to send an ICMPv6 Echo Request to the + * SSED_1 mesh-local address. + * - Pass Criteria: + * - 11.1: SSED_1 MUST NOT send a MAC Data Request prior to receiving the ICMPv6 Echo Request from the DUT. + */ + Log("Step 11: Leader"); + + /** + * Step 12: SSED_1 + * - Description: Automatically replies with ICMPv6 Echo Reply. + * - Pass Criteria: + * - 12.1: SSED_1 MUST send an ICMPv6 Echo Reply. + */ + Log("Step 12: SSED_1"); + + leader.SendEchoRequest(ssed1.Get().GetMeshLocalEid(), kEchoIdAsSsed, kEchoPayloadSize, kDefaultHopLimit); + nexus.AdvanceTime(kStabilizationTime); + + nexus.SaveTestInfo("test_1_2_LP_5_3_6.json"); +} + +} // namespace Nexus +} // namespace ot + +int main(void) +{ + ot::Nexus::Test1_2_LP_5_3_6(); + printf("All tests passed\n"); + return 0; +} diff --git a/tests/nexus/verify_1_2_LP_5_3_6.py b/tests/nexus/verify_1_2_LP_5_3_6.py new file mode 100644 index 000000000..e4283f233 --- /dev/null +++ b/tests/nexus/verify_1_2_LP_5_3_6.py @@ -0,0 +1,242 @@ +#!/usr/bin/env python3 +# +# Copyright (c) 2026, 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 sys +import os + +import verify_utils +from pktverify import consts + + +def verify(pv): + # 5.3.6 Router supports SSED transition to MED + # + # 5.3.6.1 Topology + # - Leader + # - Router_1 (DUT) + # - SSED_1 + # + # 5.3.6.2 Purpose & Description + # - The purpose of this test case is to validate that a Router can support a child transitioning from a SSED to a + # MED and back. + # + # Spec Reference | V1.2 Section + # ----------------------------------------|------------- + # Router supports SSED transition to MED | 4.6.5.2 + + pkts = pv.pkts + pv.summary.show() + + LEADER = pv.vars['LEADER'] + ROUTER_1 = pv.vars['ROUTER_1'] + SSED_1 = pv.vars['SSED_1'] + LEADER_MLEID = pv.vars['LEADER_MLEID'] + SSED_1_MLEID = pv.vars['SSED_1_MLEID'] + SSED_1_RLOC16 = pv.vars['SSED_1_RLOC16'] + ROUTER_1_RLOC16 = pv.vars['ROUTER_1_RLOC16'] + LEADER_RLOC16 = pv.vars['LEADER_RLOC16'] + + # Step 0: SSED_1 + # - Description: Preconditions: Set CSL Synchronized Timeout = 20s, Set CSL Period = 500ms. + # - Pass Criteria: N/A + print("Step 0: SSED_1") + + # Step 1: All + # - Description: Topology formation: Leader, DUT, SSED_1. + # - Pass Criteria: N/A + print("Step 1: All") + + # Step 2: SSED_1 + # - Description: Automatically attaches to the DUT and establishes CSL synchronization. + # - Pass Criteria: + # - 2.1: The DUT MUST send MLE Child ID Response to SSED_1. + # - 2.2: The DUT MUST unicast MLE Child Update Response to SSED_1. + print("Step 2: SSED_1") + pkts.filter_wpan_src64(ROUTER_1).\ + filter_wpan_dst64(SSED_1).\ + filter_mle_cmd(consts.MLE_CHILD_ID_RESPONSE).\ + must_next() + + _response_pkt_1 = pkts.filter_wpan_src64(ROUTER_1).\ + filter_wpan_dst64(SSED_1).\ + filter_mle_cmd(consts.MLE_CHILD_UPDATE_RESPONSE).\ + must_next() + + # Step 3: Leader + # - Description: Harness verifies connectivity by instructing the device to send an ICMPv6 Echo Request to the + # SSED mesh-local address. + # - Pass Criteria: + # - 3.1: SSED_1 MUST NOT send a MAC Data Request prior to receiving the ICMPv6 Echo Request from the DUT. + print("Step 3: Leader") + _pkt_echo_req_1 = pkts.filter_ping_request().\ + filter_ipv6_src(LEADER_MLEID).\ + filter_ipv6_dst(SSED_1_MLEID).\ + filter_wpan_src64(ROUTER_1).\ + filter_wpan_dst16(SSED_1_RLOC16).\ + must_next() + + # SSED_1 MUST NOT send a MAC Data Request prior to receiving the ICMPv6 Echo Request from the DUT. + pkts.range((_response_pkt_1.number, _response_pkt_1.number), (_pkt_echo_req_1.number, _pkt_echo_req_1.number)).\ + filter_wpan_src64(SSED_1).\ + filter_wpan_dst16(ROUTER_1_RLOC16).\ + filter_wpan_cmd(consts.WPAN_DATA_REQUEST).\ + filter(lambda p: p.wpan.header_ie.csl.period == 0).\ + must_not_next() + + # Step 4: SSED_1 + # - Description: Automatically replies with ICMPv6 Echo Reply. + # - Pass Criteria: Verify that the SSED replies with an ICMPv6 Echo Reply and is received by the Router. + print("Step 4: SSED_1") + pkts.filter_ping_reply(identifier=_pkt_echo_req_1.icmpv6.echo.identifier).\ + filter_wpan_src64(SSED_1).\ + filter_wpan_dst16(ROUTER_1_RLOC16).\ + must_next() + + # Step 5: SSED_1 (MED_1) + # - Description: Harness instructs the device to transition to a MED and send an MLE Child Update Request and + # properly sets the Mode TLV. + # - Pass Criteria: N/A + print("Step 5: SSED_1 (MED_1)") + pkts.filter_wpan_src64(SSED_1).\ + filter_wpan_dst64(ROUTER_1).\ + filter_mle_cmd(consts.MLE_CHILD_UPDATE_REQUEST).\ + filter(lambda p: + p.mle.tlv.mode.receiver_on_idle == 1 and\ + p.mle.tlv.mode.device_type_bit == 0).\ + must_next() + + # Step 6: Router_1 (DUT) + # - Description: Automatically responds with a MLE Child Update Response. + # - Pass Criteria: + # - 6.1: The DUT MUST unicast MLE Child Update Response to SSED_1, including the following: + # - Mode TLV + # - R bit = 1 + # - D bit = 0 + print("Step 6: Router_1 (DUT)") + pkts.filter_wpan_src64(ROUTER_1).\ + filter_wpan_dst64(SSED_1).\ + filter_mle_cmd(consts.MLE_CHILD_UPDATE_RESPONSE).\ + filter(lambda p: + p.mle.tlv.mode.receiver_on_idle == 1 and\ + p.mle.tlv.mode.device_type_bit == 0).\ + must_next() + + # Step 7: Leader + # - Description: Harness verifies connectivity by instructing the device to send an ICMPv6 Echo Request to + # SSED_1’s mesh-local address. + # - Pass Criteria: + # - 7.1: The DUT MUST forward the ICMPv6 Echo Reply from the SSED to the Leader. + print("Step 7: Leader") + _pkt_echo_req_2 = pkts.filter_ping_request().\ + filter_ipv6_src(LEADER_MLEID).\ + filter_ipv6_dst(SSED_1_MLEID).\ + filter_wpan_src64(ROUTER_1).\ + filter_wpan_dst16(SSED_1_RLOC16).\ + must_next() + + pkts.filter_ping_reply(identifier=_pkt_echo_req_2.icmpv6.echo.identifier).\ + filter_wpan_src64(SSED_1).\ + filter_wpan_dst16(ROUTER_1_RLOC16).\ + must_next() + + # Verify that Router_1 forwards the reply to Leader + pkts.filter_ping_reply(identifier=_pkt_echo_req_2.icmpv6.echo.identifier).\ + filter_wpan_src16(ROUTER_1_RLOC16).\ + filter_wpan_dst16(LEADER_RLOC16).\ + must_next() + + # Step 8: MED_1 (SSED_1) + # - Description: Harness instructs the device to transition back to a SSED and send an MLE Child Update + # Request. + # - Pass Criteria: N/A + print("Step 8: MED_1 (SSED_1)") + pkts.filter_wpan_src64(SSED_1).\ + filter_wpan_dst64(ROUTER_1).\ + filter_mle_cmd(consts.MLE_CHILD_UPDATE_REQUEST).\ + filter(lambda p: + p.mle.tlv.mode.receiver_on_idle == 0 and\ + p.mle.tlv.mode.device_type_bit == 0).\ + must_next() + + # Step 9: Router_1 (DUT) + # - Description: Automatically responds with a MLE Child Update Response. + # - Pass Criteria: + # - 9.1: The DUT MUST unicast MLE Child Update Response to SSED_1, including the following: + # - Mode TLV + # - R bit set = 0 + # - D bit set = 0 + print("Step 9: Router_1 (DUT)") + _response_pkt_2 = pkts.filter_wpan_src64(ROUTER_1).\ + filter_wpan_dst64(SSED_1).\ + filter_mle_cmd(consts.MLE_CHILD_UPDATE_RESPONSE).\ + filter(lambda p: + p.mle.tlv.mode.receiver_on_idle == 0 and\ + p.mle.tlv.mode.device_type_bit == 0).\ + must_next() + + # Step 10: SSED_1 + # - Description: Automatically begins sending synchronization messages containing CSL IEs. + # - Pass Criteria: N/A + print("Step 10: SSED_1") + + # Step 11: Leader + # - Description: Harness verifies connectivity by instructing the device to send an ICMPv6 Echo Request to the + # SSED_1 mesh-local address. + # - Pass Criteria: + # - 11.1: SSED_1 MUST NOT send a MAC Data Request prior to receiving the ICMPv6 Echo Request from the DUT. + print("Step 11: Leader") + _pkt_echo_req_3 = pkts.filter_ping_request().\ + filter_ipv6_src(LEADER_MLEID).\ + filter_ipv6_dst(SSED_1_MLEID).\ + filter_wpan_src64(ROUTER_1).\ + filter_wpan_dst16(SSED_1_RLOC16).\ + must_next() + + # SSED_1 MUST NOT send a MAC Data Request prior to receiving the ICMPv6 Echo Request from the DUT. + pkts.range((_response_pkt_2.number, _response_pkt_2.number), (_pkt_echo_req_3.number, _pkt_echo_req_3.number)).\ + filter_wpan_src64(SSED_1).\ + filter_wpan_dst16(ROUTER_1_RLOC16).\ + filter_wpan_cmd(consts.WPAN_DATA_REQUEST).\ + filter(lambda p: p.wpan.header_ie.csl.period == 0).\ + must_not_next() + + # Step 12: SSED_1 + # - Description: Automatically replies with ICMPv6 Echo Reply. + # - Pass Criteria: + # - 12.1: SSED_1 MUST send an ICMPv6 Echo Reply. + print("Step 12: SSED_1") + pkts.filter_ping_reply(identifier=_pkt_echo_req_3.icmpv6.echo.identifier).\ + filter_wpan_src64(SSED_1).\ + filter_wpan_dst16(ROUTER_1_RLOC16).\ + filter(lambda p: p.wpan.header_ie.csl.period > 0).\ + must_next() + + +if __name__ == '__main__': + verify_utils.run_main(verify)