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[nexus] add test 6.5.2 Child Sync after Reset - No Parent Response (#12494)

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This commit adds a new Nexus test case for 'Child Synchronization
after Reset - No Parent Response' (6.5.2) as specified in the test
specification.

Summary of changes:
- Implemented Nexus test 6.5.2:
    - Added tests/nexus/test_6_5_2.cpp: Implements the test execution
      for both Topology A (End Device 'ED_1') and Topology B (Sleepy
      End Device 'SED_1'). The test simulates a DUT reset and a
      subsequent parent failure (Router 1), verifying that the DUT
      correctly reattaches to a different parent (Leader). The test
      uses direct method calls, sets log level to note, and uses
      AllowList for connectivity.
    - Added tests/nexus/verify_6_5_2.py: PCAP verification script.
      Validates the MLE Child Update Request TLVs, confirms the DUT
      resumes polling if it is a SED, and verifies the subsequent
      reattachment handshake with the Leader and ICMPv6 connectivity.
- Updated build and execution scripts:
    - Modified tests/nexus/CMakeLists.txt to build the new test.
    - Updated tests/nexus/run_nexus_tests.sh to include 6_5_2 in the
      default test list and added expansion logic for A/B topologies.
This commit is contained in:
Jonathan Hui
2026-02-19 22:43:50 -06:00
committed by GitHub
parent 9a525c46e4
commit 0d446ae788
4 changed files with 468 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
tests/nexus/CMakeLists.txt
+1
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@@ -176,6 +176,7 @@ ot_nexus_test(6_3_2 "cert;nexus")
ot_nexus_test(6_4_1 "cert;nexus")
ot_nexus_test(6_4_2 "cert;nexus")
ot_nexus_test(6_5_1 "cert;nexus")
ot_nexus_test(6_5_2 "cert;nexus")
ot_nexus_test(6_6_1 "cert;nexus")
ot_nexus_test(6_6_2 "cert;nexus")
ot_nexus_test(7_1_1 "cert;nexus")
tests/nexus/run_nexus_tests.sh
+2 -1
View File
@@ -112,6 +112,7 @@ DEFAULT_TESTS=(
"6_4_1_B"
"6_4_2"
"6_5_1"
"6_5_2"
"6_6_1"
"6_6_2"
"7_1_1"
@@ -205,7 +206,7 @@ run_test()
expanded_tests=()
for t in "${TESTS_TO_RUN[@]}"; do
case "$t" in
6_1_1 | 6_1_2 | 6_1_3 | 6_1_6 | 6_2_1 | 6_2_2 | 6_3_1 | 6_3_2 | 6_4_1 | 6_4_2 | 6_5_1 | 6_6_1 | 6_6_2)
6_1_1 | 6_1_2 | 6_1_3 | 6_1_6 | 6_2_1 | 6_2_2 | 6_3_1 | 6_3_2 | 6_4_1 | 6_4_2 | 6_5_1 | 6_5_2 | 6_6_1 | 6_6_2)
expanded_tests+=("${t}_A" "${t}_B")
;;
*)
tests/nexus/test_6_5_2.cpp
+288
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@@ -0,0 +1,288 @@
/*
* 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 <string.h>
#include "mac/data_poll_sender.hpp"
#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 the DUT to attach to a parent, in milliseconds.
*/
static constexpr uint32_t kAttachTime = 20 * 1000;
/**
* Time to wait for child synchronization, in milliseconds.
*/
static constexpr uint32_t kChildSyncTimeout = 20 * 1000;
/**
* Time to wait for ICMPv6 Echo response, in milliseconds.
*/
static constexpr uint32_t kEchoTimeout = 5000;
/**
* Data poll period for SED, in milliseconds.
*/
static constexpr uint32_t kPollPeriod = 500;
enum Topology
{
kTopologyA,
kTopologyB,
};
void RunTest_6_5_2(Topology aTopology, const char *aJsonFile)
{
/**
* 6.5.2 Child Synchronization after Reset - No Parent Response
*
* 6.5.2.1 Topology
* - Topology A: DUT as End Device (ED_1)
* - Topology B: DUT as Sleepy End Device (SED_1)
* - Leader
* - Router_1
*
* 6.5.2.2 Purpose & Description
* The purpose of this test case is to validate that after the DUT resets and receives no response from its parent,
* it will reattach to the network through a different parent.
*
* Spec Reference | V1.1 Section | V1.3.0 Section
* ---------------------------------|--------------|---------------
* Child Synchronization after Reset | 4.7.6 | 4.6.4
*/
Core nexus;
Node &leader = nexus.CreateNode();
Node &router1 = nexus.CreateNode();
Node &dut = nexus.CreateNode();
leader.SetName("LEADER");
router1.SetName("ROUTER_1");
if (aTopology == kTopologyA)
{
dut.SetName("ED_1");
}
else
{
dut.SetName("SED_1");
}
nexus.AdvanceTime(0);
Instance::SetLogLevel(kLogLevelNote);
Log("---------------------------------------------------------------------------------------");
if (aTopology == kTopologyA)
{
Log("Topology A: ED_1 (DUT)");
}
else
{
Log("Topology B: SED_1 (DUT)");
}
Log("---------------------------------------------------------------------------------------");
Log("Step 1: All");
/**
* Step 1: All
* - Description: Ensure topology is formed correctly
* - Pass Criteria: N/A
*/
leader.AllowList(router1);
router1.AllowList(leader);
router1.AllowList(dut);
dut.AllowList(router1);
leader.Form();
nexus.AdvanceTime(kFormNetworkTime);
VerifyOrQuit(leader.Get<Mle::Mle>().IsLeader());
router1.Join(leader);
nexus.AdvanceTime(kAttachToRouterTime);
VerifyOrQuit(router1.Get<Mle::Mle>().IsRouter());
if (aTopology == kTopologyA)
{
dut.Join(router1, Node::kAsMed);
}
else
{
dut.Join(router1, Node::kAsSed);
SuccessOrQuit(dut.Get<DataPollSender>().SetExternalPollPeriod(kPollPeriod));
}
nexus.AdvanceTime(kAttachTime);
VerifyOrQuit(dut.Get<Mle::Mle>().IsChild());
VerifyOrQuit(dut.Get<Mle::Mle>().GetParent().GetExtAddress() == router1.Get<Mac::Mac>().GetExtAddress());
Log("---------------------------------------------------------------------------------------");
Log("Step 2: Router_1");
/**
* Step 2: Router_1
* - Description: Harness silently removes Router_1 from the network
* - Pass Criteria: N/A
*/
router1.Reset();
Log("---------------------------------------------------------------------------------------");
Log("Step 3: ED_1 / SED_1 (DUT)");
/**
* Step 3: ED_1 / SED_1 (DUT)
* - Description: User is prompted to reset the DUT
* - Pass Criteria: N/A
*/
dut.Reset();
Log("---------------------------------------------------------------------------------------");
Log("Step 4: ED_1 / SED_1 (DUT)");
/**
* Step 4: ED_1 / SED_1 (DUT)
* - Description: Automatically sends an MLE Child Update Request to Router_1
* - Pass Criteria:
* - The following TLVs MUST be included in the Child Update Request:
* - Mode TLV
* - Challenge TLV (required for Thread version >= 4)
* - Address Registration TLV (optional)
* - If the DUT is a SED, it MUST resume polling after sending MLE Child Update Request.
*/
/**
* After reset, we need to restart the stack
*/
dut.Get<ThreadNetif>().Up();
if (aTopology == kTopologyB)
{
SuccessOrQuit(dut.Get<DataPollSender>().SetExternalPollPeriod(kPollPeriod));
}
SuccessOrQuit(dut.Get<Mle::Mle>().Start());
/**
* Step 4 happens automatically after start as the DUT tries to sync with its known parent.
* We allow some time for the Child Update Request to be sent.
*/
nexus.AdvanceTime(kChildSyncTimeout);
Log("---------------------------------------------------------------------------------------");
Log("Step 5: Router_1");
/**
* Step 5: Router_1
* - Description: No response
* - Pass Criteria: N/A
*/
Log("---------------------------------------------------------------------------------------");
Log("Step 6: ED_1 / SED_1 (DUT)");
/**
* Step 6: ED_1 / SED_1 (DUT)
* - Description: Automatically attaches to the Leader
* - Pass Criteria:
* - The DUT MUST attach to the Leader by following the procedure in 6.1.1 Attaching to a Router
*/
/**
* Enable link between Leader and DUT so it can re-attach to Leader.
*/
leader.AllowList(dut);
dut.AllowList(leader);
/**
* Wait for the DUT to realize synchronization failed and start a new attach process.
* This may take some time depending on MLE timeout.
*/
nexus.AdvanceTime(kAttachToRouterTime);
VerifyOrQuit(dut.Get<Mle::Mle>().IsChild());
VerifyOrQuit(dut.Get<Mle::Mle>().GetParent().GetExtAddress() == leader.Get<Mac::Mac>().GetExtAddress());
Log("---------------------------------------------------------------------------------------");
Log("Step 7: Leader");
/**
* Step 7: Leader
* - Description: Harness verifies connectivity by instructing the device to send an ICMPv6 Echo Request to the DUT
* link local address
* - Pass Criteria:
* - The DUT MUST respond with ICMPv6 Echo Reply
*/
nexus.SendAndVerifyEchoRequest(leader, dut.Get<Mle::Mle>().GetLinkLocalAddress(), 0, 64, kEchoTimeout);
nexus.SaveTestInfo(aJsonFile);
}
} // namespace Nexus
} // namespace ot
int main(int argc, char *argv[])
{
if (argc < 2)
{
ot::Nexus::RunTest_6_5_2(ot::Nexus::kTopologyA, "test_6_5_2_A.json");
ot::Nexus::RunTest_6_5_2(ot::Nexus::kTopologyB, "test_6_5_2_B.json");
}
else if (strcmp(argv[1], "A") == 0)
{
ot::Nexus::RunTest_6_5_2(ot::Nexus::kTopologyA, (argc > 2) ? argv[2] : "test_6_5_2_A.json");
}
else if (strcmp(argv[1], "B") == 0)
{
ot::Nexus::RunTest_6_5_2(ot::Nexus::kTopologyB, (argc > 2) ? argv[2] : "test_6_5_2_B.json");
}
else
{
fprintf(stderr, "Error: Invalid topology '%s'. Must be 'A' or 'B'.\n", argv[1]);
return 1;
}
printf("All tests passed\n");
return 0;
}
tests/nexus/verify_6_5_2.py
+177
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@@ -0,0 +1,177 @@
#!/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
def verify(pv):
# 6.5.2 Child Synchronization after Reset - No Parent Response
#
# 6.5.2.1 Topology
# - Topology A: DUT as End Device (ED_1)
# - Topology B: DUT as Sleepy End Device (SED_1)
# - Leader
# - Router_1
#
# 6.5.2.2 Purpose & Description
# The purpose of this test case is to validate that after the DUT resets and receives no response from its parent,
# it will reattach to the network through a different parent.
#
# Spec Reference | V1.1 Section | V1.3.0 Section
# ---------------------------------|--------------|---------------
# Child Synchronization after Reset | 4.7.6 | 4.6.4
pkts = pv.pkts
pv.summary.show()
LEADER = pv.vars['LEADER']
ROUTER_1 = pv.vars['ROUTER_1']
DUT = pv.vars['ED_1'] if 'ED_1' in pv.vars else pv.vars['SED_1']
# Step 1: All
# - Description: Ensure topology is formed correctly
# - Pass Criteria: N/A
print("Step 1: Ensure topology is formed correctly")
# Step 2: Router_1
# - Description: Harness silently removes Router_1 from the network
# - Pass Criteria: N/A
print("Step 2: Harness silently removes Router_1 from the network")
# Step 3: ED_1 / SED_1 (DUT)
# - Description: User is prompted to reset the DUT
# - Pass Criteria: N/A
print("Step 3: User is prompted to reset the DUT")
# Step 4: ED_1 / SED_1 (DUT)
# - Description: Automatically sends an MLE Child Update Request to Router_1
# - Pass Criteria:
# - The following TLVs MUST be included in the Child Update Request:
# - Mode TLV
# - Challenge TLV (required for Thread version >= 4)
# - Address Registration TLV (optional)
# - If the DUT is a SED, it MUST resume polling after sending MLE Child Update Request.
print("Step 4: DUT sends an MLE Child Update Request to Router_1")
pkts.filter_wpan_src64(DUT).\
filter_wpan_dst64(ROUTER_1).\
filter_mle_cmd(consts.MLE_CHILD_UPDATE_REQUEST).\
filter(lambda p: consts.MODE_TLV in p.mle.tlv.type).\
filter(lambda p: consts.CHALLENGE_TLV in p.mle.tlv.type).\
must_next()
if 'SED_1' in pv.vars:
pkts.filter_wpan_src64(DUT).\
filter_wpan_cmd(consts.WPAN_DATA_REQUEST).\
must_next()
# Step 5: Router_1
# - Description: No response
# - Pass Criteria: N/A
print("Step 5: Router_1 - No response")
# Step 6: ED_1 / SED_1 (DUT)
# - Description: Automatically attaches to the Leader
# - Pass Criteria:
# - The DUT MUST attach to the Leader by following the procedure in 6.1.1 Attaching to a Router
print("Step 6: DUT automatically attaches to the Leader")
# Procedure in 6.1.1: Parent Request, Parent Response, Child ID Request, Child ID Response
# Parent Request
pkts.filter_wpan_src64(DUT).\
filter_LLARMA().\
filter_mle_cmd(consts.MLE_PARENT_REQUEST).\
filter(lambda p: consts.CHALLENGE_TLV in p.mle.tlv.type).\
filter(lambda p: consts.MODE_TLV in p.mle.tlv.type).\
filter(lambda p: consts.SCAN_MASK_TLV in p.mle.tlv.type).\
filter(lambda p: consts.VERSION_TLV in p.mle.tlv.type).\
must_next()
# Parent Response from Leader
pkts.filter_wpan_src64(LEADER).\
filter_wpan_dst64(DUT).\
filter_mle_cmd(consts.MLE_PARENT_RESPONSE).\
filter(lambda p: consts.CHALLENGE_TLV in p.mle.tlv.type).\
filter(lambda p: consts.CONNECTIVITY_TLV in p.mle.tlv.type).\
filter(lambda p: consts.LEADER_DATA_TLV in p.mle.tlv.type).\
filter(lambda p: consts.LINK_LAYER_FRAME_COUNTER_TLV in p.mle.tlv.type).\
filter(lambda p: consts.LINK_MARGIN_TLV in p.mle.tlv.type).\
filter(lambda p: consts.RESPONSE_TLV in p.mle.tlv.type).\
filter(lambda p: consts.SOURCE_ADDRESS_TLV in p.mle.tlv.type).\
filter(lambda p: consts.VERSION_TLV in p.mle.tlv.type).\
must_next()
# Child ID Request to Leader
pkts.filter_wpan_src64(DUT).\
filter_wpan_dst64(LEADER).\
filter_mle_cmd(consts.MLE_CHILD_ID_REQUEST).\
filter(lambda p: consts.LINK_LAYER_FRAME_COUNTER_TLV in p.mle.tlv.type).\
filter(lambda p: consts.MODE_TLV in p.mle.tlv.type).\
filter(lambda p: consts.RESPONSE_TLV in p.mle.tlv.type).\
filter(lambda p: consts.TIMEOUT_TLV in p.mle.tlv.type).\
filter(lambda p: consts.TLV_REQUEST_TLV in p.mle.tlv.type).\
filter(lambda p: consts.VERSION_TLV in p.mle.tlv.type).\
must_next()
# Child ID Response from Leader
pkts.filter_wpan_src64(LEADER).\
filter_wpan_dst64(DUT).\
filter_mle_cmd(consts.MLE_CHILD_ID_RESPONSE).\
filter(lambda p: consts.ADDRESS16_TLV in p.mle.tlv.type).\
filter(lambda p: consts.LEADER_DATA_TLV in p.mle.tlv.type).\
filter(lambda p: consts.NETWORK_DATA_TLV in p.mle.tlv.type).\
filter(lambda p: consts.SOURCE_ADDRESS_TLV in p.mle.tlv.type).\
must_next()
# Step 7: Leader
# - Description: Harness verifies connectivity by instructing the device to send an ICMPv6 Echo Request to the DUT
# link local address
# - Pass Criteria:
# - The DUT MUST respond with ICMPv6 Echo Reply
print("Step 7: Leader verifies connectivity via ICMPv6 Echo")
_pkt = pkts.filter_ping_request().\
filter_wpan_src64(LEADER).\
filter_wpan_dst64(DUT).\
must_next()
pkts.filter_ping_reply(identifier=_pkt.icmpv6.echo.identifier).\
filter_wpan_src64(DUT).\
filter_wpan_dst64(LEADER).\
must_next()
if __name__ == '__main__':
verify_utils.run_main(verify)