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Abtin Keshavarzian 064529cbfc [nexus] add helper to allow link between nodes in nexus (#12906)
Added `Core::AllowLinkBetween()` and `Core::UnallowLinkBetween()`
helper methods to the Nexus test platform. These methods simplify
establishing bidirectional links between nodes in simulation tests by
handling the reciprocal `AllowList()` calls in a single step.

Updated various Nexus test cases to utilize these new helpers,
replacing manual bidirectional `AllowList()` calls. This change
reduces verbosity and ensures consistency in how links are established
in the test topology.
2026-04-17 13:22:27 -05:00

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/*
* Copyright (c) 2026, The OpenThread Authors.
* All rights reserved.
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* modification, are permitted provided that the following conditions are met:
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* names of its contributors may be used to endorse or promote products
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*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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*/
#include <stdio.h>
#include "mac/mac.hpp"
#include "platform/nexus_core.hpp"
#include "platform/nexus_node.hpp"
#include "thread/child_table.hpp"
#include "thread/neighbor.hpp"
#include "thread/neighbor_table.hpp"
#include "thread/network_data_local.hpp"
#include "thread/network_data_notifier.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 child, in milliseconds.
*/
static constexpr uint32_t kAttachAsChildTime = 5 * 1000;
/**
* Child timeout value in seconds.
*/
static constexpr uint32_t kChildTimeout = 10;
/**
* Time to advance for the network to stabilize, in milliseconds.
*/
static constexpr uint32_t kStabilizationTime = 10 * 1000;
/**
* IPv6 Prefix 1.
*/
static const char kPrefix1[] = "2001::/64";
/**
* IPv6 Prefix 2.
*/
static const char kPrefix2[] = "2002::/64";
void Test7_1_8(const char *aJsonFile)
{
/**
* 7.1.8 Network data propagation – Border Router as End Device in Thread network; registers new server data
* information after network is formed
*
* 7.1.8.1 Topology
* - FED_1 is configured to require complete network data. (Mode TLV)
*
* 7.1.8.2 Purpose & Description
* The purpose of this test case is to verify that when global prefix information is set on the FED, the DUT
* properly disseminates the associated network data. It also verifies that the DUT sends revised server data
* information to the Leader when the FED is removed.
*
* Spec Reference | V1.1 Section | V1.3.0 Section
* -------------------------------------------|--------------------|--------------------
* Thread Network Data / Stable Thread | 5.13 / 5.14 / 5.15 | 5.13 / 5.14 / 5.15
* Network Data / Network Data Propagation | |
*/
Core nexus;
Node &leader = nexus.CreateNode();
Node &router1 = nexus.CreateNode(); // DUT
Node &fed1 = nexus.CreateNode();
leader.SetName("LEADER");
router1.SetName("ROUTER_1");
fed1.SetName("FED_1");
nexus.AdvanceTime(0);
SuccessOrQuit(Instance::SetGlobalLogLevel(kLogLevelNote));
Log("---------------------------------------------------------------------------------------");
Log("Step 1: All");
/**
* Step 1: All
* - Description: Topology Ensure topology is formed correctly.
* - Pass Criteria: N/A.
*/
AllowLinkBetween(leader, router1);
AllowLinkBetween(router1, fed1);
leader.Form();
nexus.AdvanceTime(kFormNetworkTime);
VerifyOrQuit(leader.Get<Mle::Mle>().IsLeader());
router1.Join(leader);
nexus.AdvanceTime(kAttachToRouterTime);
VerifyOrQuit(router1.Get<Mle::Mle>().IsRouter());
fed1.Get<Mle::Mle>().SetTimeout(kChildTimeout);
fed1.Join(router1, Node::kAsFed);
nexus.AdvanceTime(kAttachAsChildTime);
VerifyOrQuit(fed1.Get<Mle::Mle>().IsChild());
nexus.AdvanceTime(kStabilizationTime);
Log("---------------------------------------------------------------------------------------");
Log("Step 2: FED_1");
/**
* Step 2: FED_1
* - Description: Harness configures device with the following On-Mesh Prefix Set:
* - Prefix 1: P_Prefix=2001::/64 P_stable=1 P_default=1 P_slaac=1 P_on_mesh=1 P_preferred=1
* - Prefix 2: P_Prefix=2002::/64 P_stable=0 P_default=1 P_slaac=1 P_on_mesh=1 P_preferred=1
* - Automatically sends a CoAP Server Data Notification message with the server’s information (Prefix, Border
* Router) to the Leader.
* - Pass Criteria: N/A.
*/
{
NetworkData::OnMeshPrefixConfig config;
config.Clear();
SuccessOrQuit(config.GetPrefix().FromString(kPrefix1));
config.mStable = true;
config.mDefaultRoute = true;
config.mSlaac = true;
config.mOnMesh = true;
config.mPreferred = true;
SuccessOrQuit(fed1.Get<NetworkData::Local>().AddOnMeshPrefix(config));
config.Clear();
SuccessOrQuit(config.GetPrefix().FromString(kPrefix2));
config.mStable = false;
config.mDefaultRoute = true;
config.mSlaac = true;
config.mOnMesh = true;
config.mPreferred = true;
SuccessOrQuit(fed1.Get<NetworkData::Local>().AddOnMeshPrefix(config));
fed1.Get<NetworkData::Notifier>().HandleServerDataUpdated();
}
nexus.AdvanceTime(kStabilizationTime);
Log("---------------------------------------------------------------------------------------");
Log("Step 3: Leader");
/**
* Step 3: Leader
* - Description: Automatically transmits a 2.04 Changed CoAP response to the DUT. Automatically transmits
* multicast MLE Data Response with the new information collected, adding also 6LoWPAN ID TLV for the prefix set
* on FED_1.
* - Pass Criteria: N/A.
*/
nexus.AdvanceTime(kStabilizationTime);
Log("---------------------------------------------------------------------------------------");
Log("Step 4: Router_1 (DUT)");
/**
* Step 4: Router_1 (DUT)
* - Description: Automatically transmits multicast MLE Data Response with the new information collected, adding
* also 6LoWPAN ID TLV for the prefix set on FED_1.
* - Pass Criteria: The DUT MUST send a multicast MLE Data Response.
*/
nexus.AdvanceTime(kStabilizationTime);
Log("---------------------------------------------------------------------------------------");
Log("Step 5: FED_1");
/**
* Step 5: FED_1
* - Description: Harness silently powers-down FED_1 and waits for Router_1 to remove FED_1 from its neighbor
* table.
* - Pass Criteria: N/A.
*/
fed1.Get<Mle::Mle>().Stop();
// Wait for the child to be timed out by the parent router.
nexus.AdvanceTime((kChildTimeout + 2) * 1000);
// Verify that the child is removed from the neighbor table.
VerifyOrQuit(router1.Get<NeighborTable>().FindNeighbor(fed1.Get<Mac::Mac>().GetExtAddress()) == nullptr,
"FED_1 should be removed after timeout");
nexus.AdvanceTime(kStabilizationTime);
Log("---------------------------------------------------------------------------------------");
Log("Step 6: Router_1 (DUT)");
/**
* Step 6: Router_1 (DUT)
* - Description: Automatically notifies Leader of removed server’s (FED_1’s) RLOC16.
* - Pass Criteria: The DUT MUST send a CoAP Server Data Notification message to the Leader containing only the
* removed server’s RLOC16:
* - CoAP Request URI: coap://[<leader address>]:MM/a/sd
* - CoAP Payload: RLOC16 TLV.
*/
nexus.AdvanceTime(kStabilizationTime);
nexus.SaveTestInfo(aJsonFile);
}
} // namespace Nexus
} // namespace ot
int main(int argc, char *argv[])
{
ot::Nexus::Test7_1_8((argc > 2) ? argv[2] : "test_1_1_7_1_8.json");
printf("All tests passed\n");
return 0;
}