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[nexus] add test 5.5.5 Split and Merge with REED (#12448)
This commit adds a new Nexus test case for 'Split and Merge with REED'
(5.5.5) as specified in the Thread Test Specification.
The test demonstrates that a REED will upgrade to a Router when it
becomes a necessary parent for an isolated Router after its previous
neighbor (Router 3) is removed from the network.
Summary of changes:
- tests/nexus/test_5_5_5.cpp: C++ test execution script.
- Sets up a topology with 16 active routers total.
- Uses AllowList to specify exact links between nodes.
- Powerdowns Router 3 to isolate Router 1.
- Verifies REED 1 (DUT) upgrades to router and Router 1 reattaches.
- Includes 1-line log outputs for each test step.
- Uses mesh-local EID for ICMP Echo connectivity verification.
- tests/nexus/verify_5_5_5.py: Python PCAP verification script.
- Verifies all MLE messages and CoAP Address Solicit Request.
- Ensures proper TLVs are present in MLE and CoAP messages.
- Tracks ICMPv6 Echo Request/Reply hop-by-hop through the DUT.
- Follows "one condition per line" style for better readability.
- tests/nexus/CMakeLists.txt: Added the new test to the build system.
- tests/nexus/run_nexus_tests.sh: Added 5_5_5 to the default test list.
This commit is contained in:
Jonathan Hui
@@ -153,6 +153,7 @@ ot_nexus_test(5_5_2 "cert;nexus")
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ot_nexus_test(5_5_3 "cert;nexus")
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ot_nexus_test(5_5_4_1 "cert;nexus")
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ot_nexus_test(5_5_4_2 "cert;nexus")
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ot_nexus_test(5_5_5 "cert;nexus")
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# Misc tests
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ot_nexus_test(border_admitter "core;nexus")
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@@ -83,6 +83,7 @@ DEFAULT_TESTS=(
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"5_5_3"
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"5_5_4_1"
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"5_5_4_2"
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"5_5_5"
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)
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# Use provided arguments or the default test list
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@@ -0,0 +1,278 @@
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/*
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* Copyright (c) 2026, 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
|
||||
* 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.
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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
|
||||
* 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
|
||||
* 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)
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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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*/
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#include <stdio.h>
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#include "platform/nexus_core.hpp"
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#include "platform/nexus_node.hpp"
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namespace ot {
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namespace Nexus {
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/**
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* Time to advance for a node to form a network and become leader, in milliseconds.
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*/
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static constexpr uint32_t kFormNetworkTime = 13 * 1000;
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/**
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* Time to advance for a node to join as a child and upgrade to a router, in milliseconds.
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*/
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static constexpr uint32_t kAttachToRouterTime = 200 * 1000;
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/**
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* Time to advance for an isolated router to detect isolation and re-attach, in milliseconds.
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*/
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static constexpr uint32_t kReattachTime = 120 * 1000;
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/**
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* Time to advance for a node to join as a child.
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*/
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static constexpr uint32_t kAttachAsChildTime = 10 * 1000;
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/**
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* Time to advance for the network to stabilize after routers have attached.
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*/
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static constexpr uint32_t kStabilizationTime = 60 * 1000;
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/**
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* Timeout for ICMP Echo response, in milliseconds.
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*/
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static constexpr uint32_t kPingTimeout = 5000;
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void Test5_5_5(void)
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{
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/**
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* 5.5.5 Split and Merge with REED
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*
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* 5.5.5.1 Topology
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* - Test topology has a total of 16 active routers, including the Leader. Router_1 is restricted only to
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* communicate with Router_3 and the DUT.
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*
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* 5.5.5.2 Purpose & Description
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* The purpose of this test case is to show that the DUT will upgrade to a Router when Router_3 is eliminated.
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*
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* Spec Reference | V1.1 Section | V1.3.0 Section
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* ---------------------------|--------------|---------------
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* Thread Network Partitions | 5.16 | 5.16
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*/
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Core nexus;
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Node &leader = nexus.CreateNode();
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Node *r[16];
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for (uint16_t i = 1; i <= 15; i++)
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{
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r[i] = &nexus.CreateNode();
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r[i]->SetName("ROUTER", i);
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}
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Node &dut = nexus.CreateNode();
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leader.SetName("LEADER");
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dut.SetName("REED", 1);
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nexus.AdvanceTime(0);
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Instance::SetLogLevel(kLogLevelNote);
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Log("---------------------------------------------------------------------------------------");
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Log("Step 1: All");
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/**
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* Step 1: All
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* - Description: Ensure topology is formed correctly without the DUT.
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* - Pass Criteria: N/A
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*/
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/** Configure AllowList for specific links. */
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for (uint16_t i = 2; i <= 15; i++)
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{
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leader.AllowList(*r[i]);
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r[i]->AllowList(leader);
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}
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r[1]->AllowList(*r[3]);
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r[3]->AllowList(*r[1]);
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/** DUT links. */
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dut.AllowList(*r[2]);
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r[2]->AllowList(dut);
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leader.Form();
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nexus.AdvanceTime(kFormNetworkTime);
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VerifyOrQuit(leader.Get<Mle::Mle>().IsLeader());
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for (uint16_t i = 2; i <= 15; i++)
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{
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r[i]->Join(leader);
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}
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nexus.AdvanceTime(kAttachToRouterTime);
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r[1]->Join(leader);
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nexus.AdvanceTime(kAttachToRouterTime);
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VerifyOrQuit(r[1]->Get<Mle::Mle>().IsRouter());
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VerifyOrQuit(r[2]->Get<Mle::Mle>().IsRouter());
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VerifyOrQuit(r[3]->Get<Mle::Mle>().IsRouter());
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nexus.AdvanceTime(kStabilizationTime);
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Log("---------------------------------------------------------------------------------------");
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Log("Step 2: REED_1 (DUT)");
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/**
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* Step 2: REED_1 (DUT)
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* - Description: The DUT is added to the topology. Harness filters are set to limit the DUT to attach to Router_2.
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* - Pass Criteria: The DUT MUST NOT attempt to become an active router by sending an Address Solicit Request.
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*/
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SuccessOrQuit(dut.Get<Mle::Mle>().SetRouterEligible(false));
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dut.Join(leader);
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nexus.AdvanceTime(kAttachAsChildTime);
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VerifyOrQuit(dut.Get<Mle::Mle>().IsChild());
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VerifyOrQuit(dut.Get<Mle::Mle>().GetParent().GetExtAddress() == r[2]->Get<Mac::Mac>().GetExtAddress());
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nexus.AdvanceTime(kStabilizationTime);
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Log("---------------------------------------------------------------------------------------");
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Log("Step 3: Router_3");
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/**
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* Step 3: Router_3
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* - Description: Harness instructs the device to powerdown – removing it from the network.
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* - Pass Criteria: N/A
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*/
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r[3]->Reset();
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Log("---------------------------------------------------------------------------------------");
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Log("Step 4: Router_1");
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/**
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* Step 4: Router_1
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* - Description: Automatically attempt to re-attach to the partition by sending multicast Parent Requests to the
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* Routers and REEDs address.
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* - Pass Criteria: N/A
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*/
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SuccessOrQuit(dut.Get<Mle::Mle>().SetRouterEligible(true));
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dut.AllowList(*r[1]);
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r[1]->AllowList(dut);
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nexus.AdvanceTime(kReattachTime);
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Log("---------------------------------------------------------------------------------------");
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Log("Step 5: REED_1 (DUT)");
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/**
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* Step 5: REED_1 (DUT)
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* - Description: Automatically sends MLE Parent Response to Router_1.
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* - Pass Criteria:
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* - The DUT MUST send MLE Parent response to Router_1.
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* - The MLE Parent Response to Router_1 MUST be properly formatted.
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*/
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Log("---------------------------------------------------------------------------------------");
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Log("Step 6: Router_1");
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/**
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* Step 6: Router_1
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* - Description: Automatically sends MLE Child ID Request to the DUT.
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* - Pass Criteria: N/A
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*/
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Log("---------------------------------------------------------------------------------------");
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Log("Step 7: REED_1 (DUT)");
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/**
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* Step 7: REED_1 (DUT)
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* - Description: Automatically sends an Address Solicit Request to Leader, receives a short address and becomes a
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* router.
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* - Pass Criteria:
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* - The Address Solicit Request MUST be properly formatted:
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* - CoAP Request URI: coap://[<leader address>]:MM/a/as
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* - CoAP Payload:
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* - MAC Extended Address TLV
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* - Status TLV
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* - RLOC16 TLV (optional)
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*/
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Log("---------------------------------------------------------------------------------------");
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Log("Step 8: REED_1 (DUT)");
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/**
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* Step 8: REED_1 (DUT)
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* - Description: Automatically (optionally) sends multicast Link Request.
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* - Pass Criteria:
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* - The DUT MAY send a multicast Link Request Message.
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* - If sent, the following TLVs MUST be present in the Multicast Link Request Message:
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* - Challenge TLV
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* - Leader Data TLV
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* - TLV Request TLV: Link Margin
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* - Source Address TLV
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* - Version TLV
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*/
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Log("---------------------------------------------------------------------------------------");
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Log("Step 9: REED_1 (DUT)");
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/**
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* Step 9: REED_1 (DUT)
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* - Description: Automatically sends Child ID Response to Router_1.
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* - Pass Criteria:
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* - The DUT MUST send MLE Child ID Response to Router_1.
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* - The Child ID Response MUST be properly formatted.
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*/
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nexus.AdvanceTime(kStabilizationTime);
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VerifyOrQuit(dut.Get<Mle::Mle>().IsRouter());
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VerifyOrQuit(r[1]->Get<Mle::Mle>().IsChild());
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VerifyOrQuit(r[1]->Get<Mle::Mle>().GetParent().GetExtAddress() == dut.Get<Mac::Mac>().GetExtAddress());
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Log("---------------------------------------------------------------------------------------");
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Log("Step 10: Router_1");
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/**
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* Step 10: Router_1
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* - Description: Harness instructs the device to send an ICMPv6 Echo Request to the Leader.
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* - Pass Criteria:
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* - The DUT MUST route the ICMPv6 Echo request to the Leader.
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* - The DUT MUST route the ICMPv6 Echo reply back to Router_1.
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*/
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nexus.SendAndVerifyEchoRequest(*r[1], leader.Get<Mle::Mle>().GetMeshLocalEid(), 0, 64, kPingTimeout);
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nexus.SaveTestInfo("test_5_5_5.json");
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}
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} // namespace Nexus
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} // namespace ot
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int main(void)
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{
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ot::Nexus::Test5_5_5();
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printf("All tests passed\n");
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return 0;
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}
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@@ -0,0 +1,214 @@
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#!/usr/bin/env python3
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#
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# Copyright (c) 2026, 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
|
||||
# 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.
|
||||
#
|
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import sys
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import os
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# Add the current directory to sys.path to find verify_utils
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CUR_DIR = os.path.dirname(os.path.abspath(__file__))
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sys.path.append(CUR_DIR)
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import verify_utils
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from pktverify import consts
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def verify(pv):
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# 5.5.5 Split and Merge with REED
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#
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# 5.5.5.1 Topology
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# - Test topology has a total of 16 active routers, including the Leader. Router_1 is restricted only to
|
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# communicate with Router_3 and the DUT.
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#
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# 5.5.5.2 Purpose & Description
|
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# The purpose of this test case is to show that the DUT will upgrade to a Router when Router_3 is eliminated.
|
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#
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# Spec Reference | V1.1 Section | V1.3.0 Section
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# ---------------------------|--------------|---------------
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# Thread Network Partitions | 5.16 | 5.16
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pkts = pv.pkts
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pv.summary.show()
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LEADER = pv.vars['LEADER']
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ROUTER_1 = pv.vars['ROUTER_1']
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ROUTER_2 = pv.vars['ROUTER_2']
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REED_1 = pv.vars['REED_1']
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# Step 1: All
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# - Description: Ensure topology is formed correctly without the DUT.
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# - Pass Criteria: N/A
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print("Step 1: All")
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# Step 2: REED_1 (DUT)
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# - Description: The DUT is added to the topology. Harness filters are set to limit the DUT to attach to Router_2.
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# - Pass Criteria: The DUT MUST NOT attempt to become an active router by sending an Address Solicit Request.
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print("Step 2: REED_1 (DUT)")
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pkts.filter_wpan_src64(REED_1).\
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filter_wpan_dst64(ROUTER_2).\
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filter_mle_cmd(consts.MLE_CHILD_ID_REQUEST).\
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must_next()
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step2_end = pkts.index
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# Step 3: Router_3
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# - Description: Harness instructs the device to powerdown – removing it from the network.
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# - Pass Criteria: N/A
|
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print("Step 3: Router_3")
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# Step 4: Router_1
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# - Description: Automatically attempt to re-attach to the partition by sending multicast Parent Requests to the
|
||||
# Routers and REEDs address.
|
||||
# - Pass Criteria: N/A
|
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print("Step 4: Router_1")
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step4_start = pkts.index
|
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pkts.filter_wpan_src64(ROUTER_1).\
|
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filter_LLARMA().\
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filter_mle_cmd(consts.MLE_PARENT_REQUEST).\
|
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must_next()
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||||
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# Step 2 (verify): The DUT MUST NOT attempt to become an active router by sending an Address Solicit Request.
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pkts.range(step2_end, step4_start).\
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filter_wpan_src64(REED_1).\
|
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filter_coap_request(consts.ADDR_SOL_URI).\
|
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must_not_next()
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||||
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||||
# Step 5: REED_1 (DUT)
|
||||
# - Description: Automatically sends MLE Parent Response to Router_1.
|
||||
# - Pass Criteria:
|
||||
# - The DUT MUST send MLE Parent response to Router_1.
|
||||
# - The MLE Parent Response to Router_1 MUST be properly formatted.
|
||||
print("Step 5: REED_1 (DUT)")
|
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pkts.filter_wpan_src64(REED_1).\
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filter_wpan_dst64(ROUTER_1).\
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filter_mle_cmd(consts.MLE_PARENT_RESPONSE).\
|
||||
filter(lambda p: {
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||||
consts.CHALLENGE_TLV,
|
||||
consts.CONNECTIVITY_TLV,
|
||||
consts.LEADER_DATA_TLV,
|
||||
consts.LINK_LAYER_FRAME_COUNTER_TLV,
|
||||
consts.LINK_MARGIN_TLV,
|
||||
consts.RESPONSE_TLV,
|
||||
consts.SOURCE_ADDRESS_TLV,
|
||||
consts.VERSION_TLV
|
||||
} <= set(p.mle.tlv.type)).\
|
||||
must_next()
|
||||
|
||||
# Step 6: Router_1
|
||||
# - Description: Automatically sends MLE Child ID Request to the DUT.
|
||||
# - Pass Criteria: N/A
|
||||
print("Step 6: Router_1")
|
||||
pkts.filter_wpan_src64(ROUTER_1).\
|
||||
filter_wpan_dst64(REED_1).\
|
||||
filter_mle_cmd(consts.MLE_CHILD_ID_REQUEST).\
|
||||
must_next()
|
||||
|
||||
# Step 7: REED_1 (DUT)
|
||||
# - Description: Automatically sends an Address Solicit Request to Leader, receives a short address and becomes a
|
||||
# router.
|
||||
# - Pass Criteria:
|
||||
# - The Address Solicit Request MUST be properly formatted:
|
||||
# - CoAP Request URI: coap://[<leader address>]:MM/a/as
|
||||
# - CoAP Payload:
|
||||
# - MAC Extended Address TLV
|
||||
# - Status TLV
|
||||
# - RLOC16 TLV (optional)
|
||||
print("Step 7: REED_1 (DUT)")
|
||||
pkts.filter_wpan_src64(REED_1).\
|
||||
filter_coap_request(consts.ADDR_SOL_URI).\
|
||||
filter(lambda p: {
|
||||
consts.NL_MAC_EXTENDED_ADDRESS_TLV,
|
||||
consts.NL_STATUS_TLV
|
||||
} <= set(p.coap.tlv.type)).\
|
||||
must_next()
|
||||
|
||||
# Step 8: REED_1 (DUT)
|
||||
# - Description: Automatically (optionally) sends multicast Link Request.
|
||||
# - Pass Criteria:
|
||||
# - The DUT MAY send a multicast Link Request Message.
|
||||
# - If sent, the following TLVs MUST be present in the Multicast Link Request Message:
|
||||
# - Challenge TLV
|
||||
# - Leader Data TLV
|
||||
# - TLV Request TLV: Link Margin
|
||||
# - Source Address TLV
|
||||
# - Version TLV
|
||||
print("Step 8: REED_1 (DUT)")
|
||||
link_req = pkts.filter_wpan_src64(REED_1).\
|
||||
filter_LLANMA().\
|
||||
filter_mle_cmd(consts.MLE_LINK_REQUEST).\
|
||||
filter(lambda p: {
|
||||
consts.CHALLENGE_TLV,
|
||||
consts.LEADER_DATA_TLV,
|
||||
consts.TLV_REQUEST_TLV,
|
||||
consts.SOURCE_ADDRESS_TLV,
|
||||
consts.VERSION_TLV
|
||||
} <= set(p.mle.tlv.type)).\
|
||||
next()
|
||||
|
||||
# Step 9: REED_1 (DUT)
|
||||
# - Description: Automatically sends Child ID Response to Router_1.
|
||||
# - Pass Criteria:
|
||||
# - The DUT MUST send MLE Child ID Response to Router_1.
|
||||
# - The Child ID Response MUST be properly formatted.
|
||||
print("Step 9: REED_1 (DUT)")
|
||||
pkts.filter_wpan_src64(REED_1).\
|
||||
filter_wpan_dst64(ROUTER_1).\
|
||||
filter_mle_cmd(consts.MLE_CHILD_ID_RESPONSE).\
|
||||
filter(lambda p: {
|
||||
consts.ADDRESS16_TLV,
|
||||
consts.LEADER_DATA_TLV,
|
||||
consts.NETWORK_DATA_TLV,
|
||||
consts.SOURCE_ADDRESS_TLV
|
||||
} <= set(p.mle.tlv.type)).\
|
||||
must_next()
|
||||
|
||||
# Step 10: Router_1
|
||||
# - Description: Harness instructs the device to send an ICMPv6 Echo Request to the Leader.
|
||||
# - Pass Criteria:
|
||||
# - The DUT MUST route the ICMPv6 Echo request to the Leader.
|
||||
# - The DUT MUST route the ICMPv6 Echo reply back to Router_1.
|
||||
ROUTER_1_RLOC16 = pv.vars['ROUTER_1_RLOC16']
|
||||
ROUTER_2_RLOC16 = pv.vars['ROUTER_2_RLOC16']
|
||||
REED_1_RLOC16 = pv.vars['REED_1_RLOC16']
|
||||
|
||||
print("Step 10: Router_1")
|
||||
_pkt = pkts.filter_ping_request().\
|
||||
filter_wpan_src64(ROUTER_1).\
|
||||
filter_wpan_dst16(REED_1_RLOC16).\
|
||||
must_next()
|
||||
pkts.filter_ping_request().\
|
||||
filter_wpan_src64(REED_1).\
|
||||
filter_wpan_dst16(ROUTER_2_RLOC16).\
|
||||
must_next()
|
||||
pkts.filter_ping_reply(identifier=_pkt.icmpv6.echo.identifier).\
|
||||
filter_wpan_src64(REED_1).\
|
||||
filter_wpan_dst16(ROUTER_1_RLOC16).\
|
||||
must_next()
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
verify_utils.run_main(verify)
|
||||
Reference in New Issue
Block a user