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[nexus] implement test 1.2.LP.5.3.8 for SSED CSL channel modification (#12614)

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This commit implements and verifies Nexus test case 1.2.LP.5.3.8, which
validates that a Router (DUT) correctly supports a Synchronized Sleepy
End Device (SSED) that modifies its CSL Channel TLV.

Key changes:
- Created tests/nexus/test_1_2_LP_5_3_8.cpp to simulate the test
  topology (Leader, DUT, SSED_1) and execution steps.
- Implemented tests/nexus/verify_1_2_LP_5_3_8.py to perform automated
  packet verification of the test criteria.
- Integrated the new test into CMakeLists.txt and run_nexus_tests.sh.
- Used descriptive constants for CSL parameters and wait times to avoid
  magic numbers and ensure spec compliance (e.g., CSL timeout of 20s).
- Verified connectivity using ICMPv6 Echo exchanges across Primary,
  Secondary, and Ternary channels, ensuring the SSED only polls when
  expected.
This commit is contained in:
Jonathan Hui
2026-03-05 12:36:59 -06:00
committed by GitHub
parent 464ddcb9e6
commit 939fdee791
4 changed files with 675 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
tests/nexus/CMakeLists.txt
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@@ -222,6 +222,7 @@ 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")
ot_nexus_test(1_2_LP_5_3_7 "cert;nexus")
ot_nexus_test(1_2_LP_5_3_8 "cert;nexus")
# Misc tests
ot_nexus_test(border_admitter "core;nexus")
tests/nexus/run_nexus_tests.sh
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@@ -157,6 +157,7 @@ DEFAULT_TESTS=(
"1_2_LP_5_3_5"
"1_2_LP_5_3_6"
"1_2_LP_5_3_7"
"1_2_LP_5_3_8"
)
# Use provided arguments or the default test list
tests/nexus/test_1_2_LP_5_3_8.cpp
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@@ -0,0 +1,389 @@
/*
* 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 <stdio.h>
#include "meshcop/dataset.hpp"
#include "platform/nexus_core.hpp"
#include "platform/nexus_node.hpp"
#include "thread/mle.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.
*/
static constexpr uint32_t kAttachAsSsedTime = 10 * 1000;
/**
* Time to wait for the CSL change to complete, in milliseconds.
*/
static constexpr uint32_t kWaitCslChangeTime = 18 * 1000;
/**
* Time to wait for the network activities to complete, in milliseconds.
*/
static constexpr uint32_t kWaitNetworkActivitiesTime = 18 * 1000;
/**
* Time to wait for the Pending Dataset to take effect, in milliseconds.
*/
static constexpr uint32_t kDelayTimerTime = 10 * 1000;
/**
* Time to wait for the MLE Child Update Response, in milliseconds.
*/
static constexpr uint32_t kChildUpdateResponseWaitTime = 1000;
/**
* Time to wait for the Pending Dataset to settle, in milliseconds.
*/
static constexpr uint32_t kWaitPendingDatasetTime = 30 * 1000;
/**
* CSL Period in units of 160 microseconds. 500ms = 3125 units.
*/
static constexpr uint16_t kCslPeriod = 3125;
/**
* CSL Synchronized Timeout in seconds.
*/
static constexpr uint32_t kCslTimeout = 20;
/**
* Primary Channel.
*/
static constexpr uint8_t kPrimaryChannel = 11;
/**
* Secondary Channel.
*/
static constexpr uint8_t kSecondaryChannel = 12;
/**
* Ternary Channel.
*/
static constexpr uint8_t kTernaryChannel = 13;
/**
* PAN ID.
*/
static constexpr uint16_t kPanId = 0x1234;
/**
* Active Timestamp for the Pending Dataset.
*/
static constexpr uint64_t kActiveTimestamp = 200;
/**
* Pending Timestamp for the Pending Dataset.
*/
static constexpr uint64_t kPendingTimestamp = 100;
/**
* Payload size for a standard ICMPv6 Echo Request.
*/
static constexpr uint16_t kEchoPayloadSize = 10;
void Test5_3_8(void)
{
/**
* 5.3.8 Router supports SSED modifying CSL Channel TLV
*
* 5.3.8.1 Topology
* - Leader
* - Router_1 (DUT)
* - SSED_1
*
* 5.3.8.2 Purpose & Description
* The purpose of this test case is to validate that a Router can support a SSED that modifies the CSL Channel TLV.
*
* Spec Reference | V1.2 Section
* -------------------------------------------|--------------
* Router supports SSED modifying CSL Channel | 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);
Log("---------------------------------------------------------------------------------------");
Log("Step 0: SSED_1");
/**
* Step 0: SSED_1
* - Description: Preconditions: Set CSL Synchronized Timeout = 20s. Set CSL Period = 500ms.
* - Pass Criteria: N/A.
*/
ssed1.Get<Mle::Mle>().SetCslTimeout(kCslTimeout);
ssed1.Get<Mac::Mac>().SetCslPeriod(kCslPeriod);
Log("---------------------------------------------------------------------------------------");
Log("Step 1: All");
/**
* Step 1: All
* - Description: Topology formation: Leader, DUT, SSED_1.
* - Pass Criteria: N/A.
*/
/** Use AllowList feature to specify links between nodes. */
leader.AllowList(router1);
router1.AllowList(leader);
router1.AllowList(ssed1);
ssed1.AllowList(router1);
{
MeshCoP::Dataset::Info datasetInfo;
SuccessOrQuit(datasetInfo.GenerateRandom(leader.GetInstance()));
datasetInfo.Set<MeshCoP::Dataset::kChannel>(kPrimaryChannel);
datasetInfo.Set<MeshCoP::Dataset::kPanId>(kPanId);
leader.Get<MeshCoP::ActiveDatasetManager>().SaveLocal(datasetInfo);
}
leader.Get<ThreadNetif>().Up();
SuccessOrQuit(leader.Get<Mle::Mle>().Start());
nexus.AdvanceTime(kFormNetworkTime);
VerifyOrQuit(leader.Get<Mle::Mle>().IsLeader());
router1.Join(leader);
nexus.AdvanceTime(kAttachToRouterTime);
VerifyOrQuit(router1.Get<Mle::Mle>().IsRouter());
Log("---------------------------------------------------------------------------------------");
Log("Step 2: SSED_1");
/**
* Step 2: SSED_1
* - Description: Automatically attaches to the DUT on the Primary Channel 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.
*/
ssed1.Join(router1, Node::kAsSed);
nexus.AdvanceTime(kAttachAsSsedTime);
VerifyOrQuit(ssed1.Get<Mle::Mle>().IsAttached());
VerifyOrQuit(ssed1.Get<Mac::Mac>().IsCslEnabled());
Log("---------------------------------------------------------------------------------------");
Log("Step 3: Leader");
/**
* Step 3: Leader
* - Description: Harness verifies connectivity by instructing the device to send an ICMPv6 Echo Request to the
* SSED_1 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.
* - 3.2: The Leader MUST receive the ICMPv6 Echo Reply.
*/
nexus.SendAndVerifyEchoRequest(leader, ssed1.Get<Mle::Mle>().GetMeshLocalEid(), kEchoPayloadSize);
Log("---------------------------------------------------------------------------------------");
Log("Step 4: SSED_1");
/**
* Step 4: SSED_1
* - Description: Harness instructs the device to modify its CSL Channel TLV to the Secondary Channel and send a
* MLE Child Update Request.
* - Pass Criteria: N/A.
*/
ssed1.Get<Mac::Mac>().SetCslChannel(kSecondaryChannel);
ssed1.Get<Mle::Mle>().ScheduleChildUpdateRequest();
Log("---------------------------------------------------------------------------------------");
Log("Step 5: Router_1 (DUT)");
/**
* Step 5: Router_1 (DUT)
* - Description: Automatically responds with MLE Child Update Response.
* - Pass Criteria:
* - 5.1: The DUT MUST send MLE Child Update Response on the Secondary Channel.
*/
nexus.AdvanceTime(kChildUpdateResponseWaitTime);
Log("---------------------------------------------------------------------------------------");
Log("Step 6: Harness");
/**
* Step 6: Harness
* - Description: Harness waits 18 seconds for the CSL change to complete.
* - Pass Criteria: N/A.
*/
nexus.AdvanceTime(kWaitCslChangeTime);
Log("---------------------------------------------------------------------------------------");
Log("Step 7: Leader");
/**
* Step 7: Leader
* - Description: Harness verifies connectivity by sending an ICMPv6 Echo Request to the SSED_1 mesh-local
* address.
* - Pass Criteria:
* - 7.1: The DUT MUST transmit the ICMPv6 Echo Request on the Secondary Channel.
* - 7.2: SSED_1 MUST NOT send a MAC Data Request prior to receiving the ICMPv6 Echo Request from the DUT.
* - 7.3: The Leader MUST receive the ICMPv6 Echo Reply.
*/
nexus.SendAndVerifyEchoRequest(leader, ssed1.Get<Mle::Mle>().GetMeshLocalEid(), kEchoPayloadSize);
Log("---------------------------------------------------------------------------------------");
Log("Step 8: SSED_1");
/**
* Step 8: SSED_1
* - Description: Harness instructs the device to modify its CSL Channel TLV back to the original (Primary)
* Channel and send a MLE Child Update Request. To do this, the Harness sends the channel value ‘0’ which
* denotes ‘same channel as used for Thread Network’. Note: in OT CLI, this is set with `csl channel 0`.
* - Pass Criteria: N/A.
*/
ssed1.Get<Mac::Mac>().SetCslChannel(0);
ssed1.Get<Mle::Mle>().ScheduleChildUpdateRequest();
Log("---------------------------------------------------------------------------------------");
Log("Step 9: Router_1 (DUT)");
/**
* Step 9: Router_1 (DUT)
* - Description: Automatically responds with a MLE Child Update Response.
* - Pass Criteria:
* - 9.1: The DUT MUST send a MLE Child Update Response.
*/
nexus.AdvanceTime(kChildUpdateResponseWaitTime);
Log("---------------------------------------------------------------------------------------");
Log("Step 10: Harness");
/**
* Step 10: Harness
* - Description: Harness waits 18 seconds for the network activities to complete.
* - Pass Criteria: N/A.
*/
nexus.AdvanceTime(kWaitNetworkActivitiesTime);
Log("---------------------------------------------------------------------------------------");
Log("Step 11: Leader");
/**
* 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: The DUT MUST transmit the ICMPv6 Echo Request on the Primary Channel.
* - 11.2: SSED_1 MUST NOT send a MAC Data Request prior to receiving the ICMPv6 Echo Request from the DUT.
* - 11.3: The Leader MUST receive the ICMPv6 Echo Reply.
*/
nexus.SendAndVerifyEchoRequest(leader, ssed1.Get<Mle::Mle>().GetMeshLocalEid(), kEchoPayloadSize);
Log("---------------------------------------------------------------------------------------");
Log("Step 12: Leader");
/**
* Step 12: Leader
* - Description: Harness configures a new Terniary channel for the Thread Network, using the Pending Dataset.
* The new dataset automatically propagates to all devices in the network.
* - Pass Criteria: N/A.
*/
{
MeshCoP::Dataset::Info datasetInfo;
SuccessOrQuit(leader.Get<MeshCoP::ActiveDatasetManager>().Read(datasetInfo));
datasetInfo.Set<MeshCoP::Dataset::kChannel>(kTernaryChannel);
datasetInfo.Set<MeshCoP::Dataset::kDelay>(kDelayTimerTime);
{
MeshCoP::Timestamp timestamp;
timestamp.Clear();
timestamp.SetSeconds(kActiveTimestamp);
datasetInfo.Set<MeshCoP::Dataset::kActiveTimestamp>(timestamp);
timestamp.Clear();
timestamp.SetSeconds(kPendingTimestamp);
datasetInfo.Set<MeshCoP::Dataset::kPendingTimestamp>(timestamp);
}
leader.Get<MeshCoP::PendingDatasetManager>().SaveLocal(datasetInfo);
}
nexus.AdvanceTime(kWaitPendingDatasetTime);
Log("---------------------------------------------------------------------------------------");
Log("Step 13: Leader");
/**
* Step 13: Leader
* - Description: Harness verifies connectivity by sending an ICMPv6 Echo Request to the SSED_1 mesh-local
* address.
* - Pass Criteria:
* - 13.1: The DUT MUST transmit the ICMPv6 Echo Request on the Terniary Channel.
* - 13.2: SSED_1 MUST NOT send a MAC Data Request prior to receiving the ICMPv6 Echo Request from the DUT.
*/
nexus.SendAndVerifyEchoRequest(leader, ssed1.Get<Mle::Mle>().GetMeshLocalEid(), kEchoPayloadSize);
nexus.SaveTestInfo("test_1_2_LP_5_3_8.json");
}
} // namespace Nexus
} // namespace ot
int main(void)
{
ot::Nexus::Test5_3_8();
printf("All tests passed\n");
return 0;
}
tests/nexus/verify_1_2_LP_5_3_8.py
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@@ -0,0 +1,284 @@
#!/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
# Add the current directory to sys.path to find verify_utils
CUR_DIR = os.path.dirname(os.path.abspath(__file__))
sys.path.append(CUR_DIR)
import verify_utils
from pktverify import consts
# Constants to avoid magic numbers
PRIMARY_CHANNEL = 11
SECONDARY_CHANNEL = 12
TERNARY_CHANNEL = 13
CSL_CHANNEL_TLV = 80
def verify(pv):
# 5.3.8 Router supports SSED modifying CSL Channel TLV
#
# 5.3.8.1 Topology
# - Leader
# - Router_1 (DUT)
# - SSED_1
#
# 5.3.8.2 Purpose & Description
# The purpose of this test case is to validate that a Router can support a SSED that modifies the CSL Channel TLV.
#
# Spec Reference | V1.2 Section
# -------------------------------------------|--------------
# Router supports SSED modifying CSL Channel | 4.6.5.2
pkts = pv.pkts
pv.summary.show()
LEADER = pv.vars['LEADER']
ROUTER_1 = pv.vars['ROUTER_1']
ROUTER_1_RLOC16 = pv.vars['ROUTER_1_RLOC16']
SSED_1 = pv.vars['SSED_1']
SSED_1_RLOC16 = pv.vars['SSED_1_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 preconditions")
# Step 1: All
# - Description: Topology formation: Leader, DUT, SSED_1.
# - Pass Criteria: N/A.
print("Step 1: Topology formation")
# Step 2: SSED_1
# - Description: Automatically attaches to the DUT on the Primary Channel 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 attaches and establishes CSL synchronization")
pkts.filter_wpan_src64(ROUTER_1).\
filter_wpan_dst64(SSED_1).\
filter_mle_cmd(consts.MLE_CHILD_ID_RESPONSE).\
must_next()
pkts.filter_wpan_src64(ROUTER_1).\
filter_wpan_dst64(SSED_1).\
filter_mle_cmd(consts.MLE_CHILD_UPDATE_RESPONSE).\
must_next()
checkpoint = pkts.index
# Step 3: Leader
# - Description: Harness verifies connectivity by instructing the device to send an ICMPv6 Echo Request to the
# SSED_1 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.
# - 3.2: The Leader MUST receive the ICMPv6 Echo Reply.
print("Step 3: Leader verifies connectivity")
_pkt = pkts.filter_ping_request().\
filter_wpan_src64(ROUTER_1).\
filter_wpan_dst16(SSED_1_RLOC16).\
filter(lambda p: p.wpan_tap.ch_num == PRIMARY_CHANNEL).\
must_next()
pkts.range(checkpoint, pkts.index).\
filter_wpan_src64(SSED_1).\
filter_wpan_dst16(ROUTER_1_RLOC16).\
filter_wpan_cmd(consts.WPAN_DATA_REQUEST).\
filter(lambda p: p.wpan_tap.ch_num == PRIMARY_CHANNEL).\
must_not_next()
pkts.filter_ping_reply(identifier=_pkt.icmpv6.echo.identifier).\
filter_wpan_src64(SSED_1).\
filter_wpan_dst16(ROUTER_1_RLOC16).\
filter(lambda p: p.wpan_tap.ch_num == PRIMARY_CHANNEL).\
must_next()
checkpoint = pkts.index
# Step 4: SSED_1
# - Description: Harness instructs the device to modify its CSL Channel TLV to the Secondary Channel and send a
# MLE Child Update Request.
# - Pass Criteria: N/A.
print("Step 4: SSED_1 modifies CSL Channel TLV to Secondary Channel")
pkts.filter_wpan_src64(SSED_1).\
filter_wpan_dst64(ROUTER_1).\
filter_mle_cmd(consts.MLE_CHILD_UPDATE_REQUEST).\
filter(lambda p: CSL_CHANNEL_TLV in p.mle.tlv.type and p.wpan_tap.ch_num == PRIMARY_CHANNEL).\
must_next()
# Step 5: Router_1 (DUT)
# - Description: Automatically responds with MLE Child Update Response.
# - Pass Criteria:
# - 5.1: The DUT MUST send MLE Child Update Response on the Secondary Channel.
print("Step 5: Router_1 (DUT) responds with MLE Child Update Response on Secondary Channel")
pkts.filter_wpan_src64(ROUTER_1).\
filter_wpan_dst64(SSED_1).\
filter_mle_cmd(consts.MLE_CHILD_UPDATE_RESPONSE).\
filter(lambda p: p.wpan_tap.ch_num == SECONDARY_CHANNEL).\
must_next()
# Step 6: Harness
# - Description: Harness waits 18 seconds for the CSL change to complete.
# - Pass Criteria: N/A.
print("Step 6: Wait for CSL change to complete")
# Step 7: Leader
# - Description: Harness verifies connectivity by sending an ICMPv6 Echo Request to the SSED_1 mesh-local
# address.
# - Pass Criteria:
# - 7.1: The DUT MUST transmit the ICMPv6 Echo Request on the Secondary Channel.
# - 7.2: SSED_1 MUST NOT send a MAC Data Request prior to receiving the ICMPv6 Echo Request from the DUT.
# - 7.3: The Leader MUST receive the ICMPv6 Echo Reply.
print("Step 7: Leader verifies connectivity on Secondary Channel")
_pkt = pkts.filter_ping_request().\
filter_wpan_src64(ROUTER_1).\
filter_wpan_dst16(SSED_1_RLOC16).\
filter(lambda p: p.wpan_tap.ch_num == SECONDARY_CHANNEL).\
must_next()
pkts.range(checkpoint, pkts.index).\
filter_wpan_src64(SSED_1).\
filter_wpan_dst16(ROUTER_1_RLOC16).\
filter_wpan_cmd(consts.WPAN_DATA_REQUEST).\
filter(lambda p: p.wpan_tap.ch_num == SECONDARY_CHANNEL).\
must_not_next()
pkts.filter_ping_reply(identifier=_pkt.icmpv6.echo.identifier).\
filter_wpan_src64(SSED_1).\
filter_wpan_dst16(ROUTER_1_RLOC16).\
filter(lambda p: p.wpan_tap.ch_num == PRIMARY_CHANNEL).\
must_next()
checkpoint = pkts.index
# Step 8: SSED_1
# - Description: Harness instructs the device to modify its CSL Channel TLV back to the original (Primary)
# Channel and send a MLE Child Update Request. To do this, the Harness sends the channel value ‘0’ which
# denotes ‘same channel as used for Thread Network’. Note: in OT CLI, this is set with `csl channel 0`.
# - Pass Criteria: N/A.
print("Step 8: SSED_1 modifies CSL Channel TLV back to Primary Channel")
pkts.filter_wpan_src64(SSED_1).\
filter_wpan_dst64(ROUTER_1).\
filter_mle_cmd(consts.MLE_CHILD_UPDATE_REQUEST).\
filter(lambda p: CSL_CHANNEL_TLV in p.mle.tlv.type and p.wpan_tap.ch_num == PRIMARY_CHANNEL).\
must_next()
# Step 9: Router_1 (DUT)
# - Description: Automatically responds with a MLE Child Update Response.
# - Pass Criteria:
# - 9.1: The DUT MUST send a MLE Child Update Response.
print("Step 9: Router_1 (DUT) responds with MLE Child Update Response on Primary Channel")
pkts.filter_wpan_src64(ROUTER_1).\
filter_wpan_dst64(SSED_1).\
filter_mle_cmd(consts.MLE_CHILD_UPDATE_RESPONSE).\
filter(lambda p: p.wpan_tap.ch_num == PRIMARY_CHANNEL).\
must_next()
# Step 10: Harness
# - Description: Harness waits 18 seconds for the network activities to complete.
# - Pass Criteria: N/A.
print("Step 10: Wait for network activities to complete")
# 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: The DUT MUST transmit the ICMPv6 Echo Request on the Primary Channel.
# - 11.2: SSED_1 MUST NOT send a MAC Data Request prior to receiving the ICMPv6 Echo Request from the DUT.
# - 11.3: The Leader MUST receive the ICMPv6 Echo Reply.
print("Step 11: Leader verifies connectivity on Primary Channel")
_pkt = pkts.filter_ping_request().\
filter_wpan_src64(ROUTER_1).\
filter_wpan_dst16(SSED_1_RLOC16).\
filter(lambda p: p.wpan_tap.ch_num == PRIMARY_CHANNEL).\
must_next()
pkts.range(checkpoint, pkts.index).\
filter_wpan_src64(SSED_1).\
filter_wpan_dst16(ROUTER_1_RLOC16).\
filter_wpan_cmd(consts.WPAN_DATA_REQUEST).\
filter(lambda p: p.wpan_tap.ch_num == PRIMARY_CHANNEL).\
must_not_next()
pkts.filter_ping_reply(identifier=_pkt.icmpv6.echo.identifier).\
filter_wpan_src64(SSED_1).\
filter_wpan_dst16(ROUTER_1_RLOC16).\
filter(lambda p: p.wpan_tap.ch_num == PRIMARY_CHANNEL).\
must_next()
checkpoint = pkts.index
# Step 12: Leader
# - Description: Harness configures a new Terniary channel for the Thread Network, using the Pending Dataset.
# The new dataset automatically propagates to all devices in the network.
# - Pass Criteria: N/A.
print("Step 12: Leader configures Ternary channel via Pending Dataset")
# Step 13: Leader
# - Description: Harness verifies connectivity by sending an ICMPv6 Echo Request to the SSED_1 mesh-local
# address.
# - Pass Criteria:
# - 13.1: The DUT MUST transmit the ICMPv6 Echo Request on the Terniary Channel.
# - 13.2: SSED_1 MUST NOT send a MAC Data Request prior to receiving the ICMPv6 Echo Request from the DUT.
print("Step 13: Leader verifies connectivity on Ternary Channel")
_pkt = pkts.filter_ping_request().\
filter_wpan_src64(ROUTER_1).\
filter_wpan_dst16(SSED_1_RLOC16).\
filter(lambda p: p.wpan_tap.ch_num == TERNARY_CHANNEL).\
must_next()
pkts.range(checkpoint, pkts.index).\
filter_wpan_src64(SSED_1).\
filter_wpan_dst16(ROUTER_1_RLOC16).\
filter_wpan_cmd(consts.WPAN_DATA_REQUEST).\
filter(lambda p: p.wpan_tap.ch_num == TERNARY_CHANNEL).\
must_not_next()
pkts.filter_ping_reply(identifier=_pkt.icmpv6.echo.identifier).\
filter_wpan_src64(SSED_1).\
filter_wpan_dst16(ROUTER_1_RLOC16).\
filter(lambda p: p.wpan_tap.ch_num == TERNARY_CHANNEL).\
must_next()
if __name__ == '__main__':
verify_utils.run_main(verify)