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1 : /*
2 : *
3 : * Copyright (c) 2021 Project CHIP Authors
4 : * All rights reserved.
5 : *
6 : * Licensed under the Apache License, Version 2.0 (the "License");
7 : * you may not use this file except in compliance with the License.
8 : * You may obtain a copy of the License at
9 : *
10 : * http://www.apache.org/licenses/LICENSE-2.0
11 : *
12 : * Unless required by applicable law or agreed to in writing, software
13 : * distributed under the License is distributed on an "AS IS" BASIS,
14 : * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 : * See the License for the specific language governing permissions and
16 : * limitations under the License.
17 : */
18 :
19 : /**
20 : * @file
21 : * Implementation of CHIP Device Controller Factory, a utility/manager class
22 : * that vends Controller objects
23 : */
24 :
25 : #include <controller/CHIPDeviceControllerFactory.h>
26 :
27 : #include <app/InteractionModelEngine.h>
28 : #include <app/OperationalSessionSetup.h>
29 : #include <app/TimerDelegates.h>
30 : #include <app/reporting/ReportSchedulerImpl.h>
31 : #include <app/util/DataModelHandler.h>
32 : #include <lib/core/ErrorStr.h>
33 : #include <messaging/ReliableMessageProtocolConfig.h>
34 :
35 : #if CONFIG_DEVICE_LAYER
36 : #include <platform/CHIPDeviceLayer.h>
37 : #include <platform/ConfigurationManager.h>
38 : #endif
39 :
40 : #include <app/server/Dnssd.h>
41 : #include <protocols/secure_channel/CASEServer.h>
42 : #include <protocols/secure_channel/SimpleSessionResumptionStorage.h>
43 :
44 : using namespace chip::Inet;
45 : using namespace chip::System;
46 : using namespace chip::Credentials;
47 :
48 : namespace chip {
49 : namespace Controller {
50 :
51 0 : CHIP_ERROR DeviceControllerFactory::Init(FactoryInitParams params)
52 : {
53 :
54 : // SystemState is only set the first time init is called, after that it is managed
55 : // internally. If SystemState is set then init has already completed.
56 0 : if (mSystemState != nullptr)
57 : {
58 0 : ChipLogError(Controller, "Device Controller Factory already initialized...");
59 0 : return CHIP_NO_ERROR;
60 : }
61 :
62 : // Save our initialization state that we can't recover later from a
63 : // created-but-shut-down system state.
64 0 : mListenPort = params.listenPort;
65 0 : mFabricIndependentStorage = params.fabricIndependentStorage;
66 0 : mOperationalKeystore = params.operationalKeystore;
67 0 : mOpCertStore = params.opCertStore;
68 0 : mCertificateValidityPolicy = params.certificateValidityPolicy;
69 0 : mSessionResumptionStorage = params.sessionResumptionStorage;
70 0 : mEnableServerInteractions = params.enableServerInteractions;
71 :
72 : // Initialize the system state. Note that it is left in a somewhat
73 : // special state where it is initialized, but has a ref count of 0.
74 0 : CHIP_ERROR err = InitSystemState(params);
75 :
76 0 : return err;
77 : }
78 :
79 0 : CHIP_ERROR DeviceControllerFactory::ReinitSystemStateIfNecessary()
80 : {
81 0 : VerifyOrReturnError(mSystemState != nullptr, CHIP_ERROR_INCORRECT_STATE);
82 0 : VerifyOrReturnError(mSystemState->IsShutDown(), CHIP_NO_ERROR);
83 :
84 0 : FactoryInitParams params;
85 0 : params.systemLayer = mSystemState->SystemLayer();
86 0 : params.udpEndPointManager = mSystemState->UDPEndPointManager();
87 : #if INET_CONFIG_ENABLE_TCP_ENDPOINT
88 0 : params.tcpEndPointManager = mSystemState->TCPEndPointManager();
89 : #endif
90 : #if CONFIG_NETWORK_LAYER_BLE
91 0 : params.bleLayer = mSystemState->BleLayer();
92 : #endif
93 0 : params.listenPort = mListenPort;
94 0 : params.fabricIndependentStorage = mFabricIndependentStorage;
95 0 : params.enableServerInteractions = mEnableServerInteractions;
96 0 : params.groupDataProvider = mSystemState->GetGroupDataProvider();
97 0 : params.sessionKeystore = mSystemState->GetSessionKeystore();
98 0 : params.fabricTable = mSystemState->Fabrics();
99 0 : params.operationalKeystore = mOperationalKeystore;
100 0 : params.opCertStore = mOpCertStore;
101 0 : params.certificateValidityPolicy = mCertificateValidityPolicy;
102 0 : params.sessionResumptionStorage = mSessionResumptionStorage;
103 :
104 : // re-initialization keeps any previously initialized values. The only place where
105 : // a provider exists is in the InteractionModelEngine, so just say "keep it as is".
106 0 : params.dataModelProvider = app::InteractionModelEngine::GetInstance()->GetDataModelProvider();
107 :
108 0 : return InitSystemState(params);
109 : }
110 :
111 0 : CHIP_ERROR DeviceControllerFactory::InitSystemState(FactoryInitParams params)
112 : {
113 0 : if (mSystemState != nullptr)
114 : {
115 0 : Platform::Delete(mSystemState);
116 0 : mSystemState = nullptr;
117 : }
118 :
119 0 : DeviceControllerSystemStateParams stateParams;
120 : #if CONFIG_DEVICE_LAYER
121 0 : ReturnErrorOnFailure(DeviceLayer::PlatformMgr().InitChipStack());
122 :
123 0 : stateParams.systemLayer = &DeviceLayer::SystemLayer();
124 0 : stateParams.udpEndPointManager = DeviceLayer::UDPEndPointManager();
125 : #if INET_CONFIG_ENABLE_TCP_ENDPOINT
126 0 : stateParams.tcpEndPointManager = DeviceLayer::TCPEndPointManager();
127 : #endif
128 : #else
129 : stateParams.systemLayer = params.systemLayer;
130 : stateParams.tcpEndPointManager = params.tcpEndPointManager;
131 : stateParams.udpEndPointManager = params.udpEndPointManager;
132 : ChipLogError(Controller, "Warning: Device Controller Factory should be with a CHIP Device Layer...");
133 : #endif // CONFIG_DEVICE_LAYER
134 :
135 : #if INET_CONFIG_ENABLE_TCP_ENDPOINT
136 0 : auto tcpListenParams = Transport::TcpListenParameters(stateParams.tcpEndPointManager)
137 0 : .SetAddressType(IPAddressType::kIPv6)
138 0 : .SetListenPort(params.listenPort)
139 0 : .SetServerListenEnabled(false); // Initialize as a TCP Client
140 : #endif
141 :
142 0 : if (params.dataModelProvider == nullptr)
143 : {
144 0 : ChipLogError(AppServer, "Device Controller Factory requires a `dataModelProvider` value.");
145 0 : ChipLogError(AppServer, "For backwards compatibility, you likely can use `CodegenDataModelProviderInstance(...)`");
146 : }
147 :
148 0 : VerifyOrReturnError(params.dataModelProvider != nullptr, CHIP_ERROR_INVALID_ARGUMENT);
149 0 : VerifyOrReturnError(stateParams.systemLayer != nullptr, CHIP_ERROR_INVALID_ARGUMENT);
150 0 : VerifyOrReturnError(stateParams.udpEndPointManager != nullptr, CHIP_ERROR_INVALID_ARGUMENT);
151 :
152 : // OperationalCertificateStore needs to be provided to init the fabric table if fabric table is
153 : // not provided wholesale.
154 0 : VerifyOrReturnError((params.fabricTable != nullptr) || (params.opCertStore != nullptr), CHIP_ERROR_INVALID_ARGUMENT);
155 0 : VerifyOrReturnError(params.sessionKeystore != nullptr, CHIP_ERROR_INVALID_ARGUMENT);
156 :
157 : #if CONFIG_NETWORK_LAYER_BLE
158 : #if CONFIG_DEVICE_LAYER
159 0 : stateParams.bleLayer = DeviceLayer::ConnectivityMgr().GetBleLayer();
160 : #else
161 : stateParams.bleLayer = params.bleLayer;
162 : #endif // CONFIG_DEVICE_LAYER
163 : #if CHIP_DEVICE_CONFIG_ENABLE_WIFIPAF
164 : stateParams.wifipaf_layer = params.wifipaf_layer;
165 : #endif
166 0 : VerifyOrReturnError(stateParams.bleLayer != nullptr, CHIP_ERROR_INVALID_ARGUMENT);
167 : #endif
168 :
169 0 : stateParams.transportMgr = chip::Platform::New<DeviceTransportMgr>();
170 :
171 : //
172 : // The logic below expects IPv6 to be at index 0 of this tuple. Please do not alter that.
173 : //
174 0 : ReturnErrorOnFailure(stateParams.transportMgr->Init(Transport::UdpListenParameters(stateParams.udpEndPointManager)
175 : .SetAddressType(Inet::IPAddressType::kIPv6)
176 : .SetListenPort(params.listenPort)
177 : #if INET_CONFIG_ENABLE_IPV4
178 : ,
179 : Transport::UdpListenParameters(stateParams.udpEndPointManager)
180 : .SetAddressType(Inet::IPAddressType::kIPv4)
181 : .SetListenPort(params.listenPort)
182 : #endif
183 : #if CONFIG_NETWORK_LAYER_BLE
184 : ,
185 : Transport::BleListenParameters(stateParams.bleLayer)
186 : #endif
187 : #if INET_CONFIG_ENABLE_TCP_ENDPOINT
188 : ,
189 : tcpListenParams
190 : #endif
191 : #if CHIP_DEVICE_CONFIG_ENABLE_WIFIPAF
192 : ,
193 : Transport::WiFiPAFListenParameters()
194 : #endif
195 : ));
196 :
197 : // TODO(#16231): All the new'ed state above/below in this method is never properly released or null-checked!
198 0 : stateParams.sessionMgr = chip::Platform::New<SessionManager>();
199 0 : stateParams.certificateValidityPolicy = params.certificateValidityPolicy;
200 0 : stateParams.unsolicitedStatusHandler = Platform::New<Protocols::SecureChannel::UnsolicitedStatusHandler>();
201 0 : stateParams.exchangeMgr = chip::Platform::New<Messaging::ExchangeManager>();
202 0 : stateParams.messageCounterManager = chip::Platform::New<secure_channel::MessageCounterManager>();
203 0 : stateParams.groupDataProvider = params.groupDataProvider;
204 0 : stateParams.timerDelegate = chip::Platform::New<chip::app::DefaultTimerDelegate>();
205 0 : stateParams.reportScheduler = chip::Platform::New<app::reporting::ReportSchedulerImpl>(stateParams.timerDelegate);
206 0 : stateParams.sessionKeystore = params.sessionKeystore;
207 0 : stateParams.bdxTransferServer = chip::Platform::New<bdx::BDXTransferServer>();
208 :
209 : // if no fabricTable was provided, create one and track it in stateParams for cleanup
210 0 : stateParams.fabricTable = params.fabricTable;
211 :
212 0 : FabricTable * tempFabricTable = nullptr;
213 0 : if (stateParams.fabricTable == nullptr)
214 : {
215 : // TODO(#16231): Previously (and still) the objects new-ed in this entire method seem expected to last forever...
216 0 : auto newFabricTable = Platform::MakeUnique<FabricTable>();
217 0 : VerifyOrReturnError(newFabricTable, CHIP_ERROR_NO_MEMORY);
218 :
219 0 : FabricTable::InitParams fabricTableInitParams;
220 0 : fabricTableInitParams.storage = params.fabricIndependentStorage;
221 0 : fabricTableInitParams.operationalKeystore = params.operationalKeystore;
222 0 : fabricTableInitParams.opCertStore = params.opCertStore;
223 0 : ReturnErrorOnFailure(newFabricTable->Init(fabricTableInitParams));
224 0 : stateParams.fabricTable = newFabricTable.release();
225 0 : tempFabricTable = stateParams.fabricTable;
226 0 : }
227 :
228 : SessionResumptionStorage * sessionResumptionStorage;
229 0 : if (params.sessionResumptionStorage == nullptr)
230 : {
231 0 : auto ownedSessionResumptionStorage = chip::Platform::MakeUnique<SimpleSessionResumptionStorage>();
232 0 : ReturnErrorOnFailure(ownedSessionResumptionStorage->Init(params.fabricIndependentStorage));
233 0 : stateParams.ownedSessionResumptionStorage = std::move(ownedSessionResumptionStorage);
234 0 : stateParams.externalSessionResumptionStorage = nullptr;
235 0 : sessionResumptionStorage = stateParams.ownedSessionResumptionStorage.get();
236 0 : }
237 : else
238 : {
239 0 : stateParams.ownedSessionResumptionStorage = nullptr;
240 0 : stateParams.externalSessionResumptionStorage = params.sessionResumptionStorage;
241 0 : sessionResumptionStorage = stateParams.externalSessionResumptionStorage;
242 : }
243 :
244 0 : auto delegate = chip::Platform::MakeUnique<ControllerFabricDelegate>();
245 0 : ReturnErrorOnFailure(delegate->Init(sessionResumptionStorage, stateParams.groupDataProvider));
246 0 : stateParams.fabricTableDelegate = delegate.get();
247 0 : ReturnErrorOnFailure(stateParams.fabricTable->AddFabricDelegate(stateParams.fabricTableDelegate));
248 0 : delegate.release();
249 :
250 0 : ReturnErrorOnFailure(stateParams.sessionMgr->Init(stateParams.systemLayer, stateParams.transportMgr,
251 : stateParams.messageCounterManager, params.fabricIndependentStorage,
252 : stateParams.fabricTable, *stateParams.sessionKeystore));
253 0 : ReturnErrorOnFailure(stateParams.exchangeMgr->Init(stateParams.sessionMgr));
254 0 : ReturnErrorOnFailure(stateParams.messageCounterManager->Init(stateParams.exchangeMgr));
255 0 : ReturnErrorOnFailure(stateParams.unsolicitedStatusHandler->Init(stateParams.exchangeMgr));
256 0 : ReturnErrorOnFailure(stateParams.bdxTransferServer->Init(stateParams.systemLayer, stateParams.exchangeMgr));
257 :
258 0 : chip::app::InteractionModelEngine * interactionModelEngine = chip::app::InteractionModelEngine::GetInstance();
259 :
260 : // Initialize the data model now that everything cluster implementations might
261 : // depend on is initalized.
262 0 : interactionModelEngine->SetDataModelProvider(params.dataModelProvider);
263 :
264 0 : ReturnErrorOnFailure(Dnssd::Resolver::Instance().Init(stateParams.udpEndPointManager));
265 :
266 0 : if (params.enableServerInteractions)
267 : {
268 0 : stateParams.caseServer = chip::Platform::New<CASEServer>();
269 :
270 : // Enable listening for session establishment messages.
271 0 : ReturnErrorOnFailure(stateParams.caseServer->ListenForSessionEstablishment(
272 : stateParams.exchangeMgr, stateParams.sessionMgr, stateParams.fabricTable, sessionResumptionStorage,
273 : stateParams.certificateValidityPolicy, stateParams.groupDataProvider));
274 :
275 : //
276 : // We need to advertise the port that we're listening to for unsolicited messages over UDP. However, we have both a IPv4
277 : // and IPv6 endpoint to pick from. Given that the listen port passed in may be set to 0 (which then has the kernel select
278 : // a valid port at bind time), that will result in two possible ports being provided back from the resultant endpoint
279 : // initializations. Since IPv6 is POR for Matter, let's go ahead and pick that port.
280 : //
281 0 : app::DnssdServer::Instance().SetSecuredPort(stateParams.transportMgr->GetTransport().GetImplAtIndex<0>().GetBoundPort());
282 :
283 : //
284 : // TODO: This is a hack to workaround the fact that we have a bi-polar stack that has controller and server modalities that
285 : // are mutually exclusive in terms of initialization of key stack singletons. Consequently, DnssdServer accesses
286 : // Server::GetInstance().GetFabricTable() to access the fabric table, but we don't want to do that when we're initializing
287 : // the controller logic since the factory here has its own fabric table.
288 : //
289 : // Consequently, reach in set the fabric table pointer to point to the right version.
290 : //
291 0 : app::DnssdServer::Instance().SetFabricTable(stateParams.fabricTable);
292 :
293 : #if INET_CONFIG_ENABLE_TCP_ENDPOINT
294 : // Disable the TCP Server based on the TCPListenParameters setting.
295 0 : app::DnssdServer::Instance().SetTCPServerEnabled(tcpListenParams.IsServerListenEnabled());
296 : #endif
297 : }
298 :
299 0 : stateParams.sessionSetupPool = Platform::New<DeviceControllerSystemStateParams::SessionSetupPool>();
300 0 : stateParams.caseClientPool = Platform::New<DeviceControllerSystemStateParams::CASEClientPool>();
301 :
302 : CASEClientInitParams sessionInitParams = {
303 0 : .sessionManager = stateParams.sessionMgr,
304 : .sessionResumptionStorage = sessionResumptionStorage,
305 0 : .certificateValidityPolicy = stateParams.certificateValidityPolicy,
306 0 : .exchangeMgr = stateParams.exchangeMgr,
307 0 : .fabricTable = stateParams.fabricTable,
308 0 : .groupDataProvider = stateParams.groupDataProvider,
309 : // Don't provide an MRP local config, so each CASE initiation will use
310 : // the then-current value.
311 : .mrpLocalConfig = NullOptional,
312 0 : };
313 :
314 : CASESessionManagerConfig sessionManagerConfig = {
315 : .sessionInitParams = sessionInitParams,
316 0 : .clientPool = stateParams.caseClientPool,
317 0 : .sessionSetupPool = stateParams.sessionSetupPool,
318 0 : };
319 :
320 : // TODO: Need to be able to create a CASESessionManagerConfig here!
321 0 : stateParams.caseSessionManager = Platform::New<CASESessionManager>();
322 0 : ReturnErrorOnFailure(stateParams.caseSessionManager->Init(stateParams.systemLayer, sessionManagerConfig));
323 :
324 0 : ReturnErrorOnFailure(interactionModelEngine->Init(stateParams.exchangeMgr, stateParams.fabricTable, stateParams.reportScheduler,
325 : stateParams.caseSessionManager));
326 :
327 : // store the system state
328 0 : mSystemState = chip::Platform::New<DeviceControllerSystemState>(std::move(stateParams));
329 0 : mSystemState->SetTempFabricTable(tempFabricTable, params.enableServerInteractions);
330 0 : ChipLogDetail(Controller, "System State Initialized...");
331 0 : return CHIP_NO_ERROR;
332 0 : }
333 :
334 0 : void DeviceControllerFactory::PopulateInitParams(ControllerInitParams & controllerParams, const SetupParams & params)
335 : {
336 0 : controllerParams.operationalCredentialsDelegate = params.operationalCredentialsDelegate;
337 0 : controllerParams.operationalKeypair = params.operationalKeypair;
338 0 : controllerParams.hasExternallyOwnedOperationalKeypair = params.hasExternallyOwnedOperationalKeypair;
339 0 : controllerParams.controllerNOC = params.controllerNOC;
340 0 : controllerParams.controllerICAC = params.controllerICAC;
341 0 : controllerParams.controllerRCAC = params.controllerRCAC;
342 0 : controllerParams.permitMultiControllerFabrics = params.permitMultiControllerFabrics;
343 0 : controllerParams.removeFromFabricTableOnShutdown = params.removeFromFabricTableOnShutdown;
344 0 : controllerParams.deleteFromFabricTableOnShutdown = params.deleteFromFabricTableOnShutdown;
345 :
346 0 : controllerParams.systemState = mSystemState;
347 0 : controllerParams.controllerVendorId = params.controllerVendorId;
348 :
349 0 : controllerParams.enableServerInteractions = params.enableServerInteractions;
350 0 : if (params.fabricIndex.HasValue())
351 : {
352 0 : controllerParams.fabricIndex.SetValue(params.fabricIndex.Value());
353 : }
354 0 : }
355 :
356 0 : void DeviceControllerFactory::ControllerInitialized(const DeviceController & controller)
357 : {
358 0 : if (mEnableServerInteractions && controller.GetFabricIndex() != kUndefinedFabricIndex)
359 : {
360 : // Restart DNS-SD advertising, because initialization of this controller could
361 : // have modified whether a particular fabric identity should be
362 : // advertised. Just calling AdvertiseOperational() is not good enough
363 : // here, since we might be removing advertising.
364 0 : app::DnssdServer::Instance().StartServer();
365 : }
366 0 : }
367 :
368 0 : CHIP_ERROR DeviceControllerFactory::SetupController(SetupParams params, DeviceController & controller)
369 : {
370 0 : VerifyOrReturnError(params.controllerVendorId != VendorId::Unspecified, CHIP_ERROR_INVALID_ARGUMENT);
371 0 : ReturnErrorOnFailure(ReinitSystemStateIfNecessary());
372 :
373 0 : ControllerInitParams controllerParams;
374 0 : PopulateInitParams(controllerParams, params);
375 :
376 0 : CHIP_ERROR err = controller.Init(controllerParams);
377 :
378 0 : if (err == CHIP_NO_ERROR)
379 : {
380 0 : ControllerInitialized(controller);
381 : }
382 :
383 0 : return err;
384 : }
385 :
386 0 : CHIP_ERROR DeviceControllerFactory::SetupCommissioner(SetupParams params, DeviceCommissioner & commissioner)
387 : {
388 0 : VerifyOrReturnError(params.controllerVendorId != VendorId::Unspecified, CHIP_ERROR_INVALID_ARGUMENT);
389 0 : ReturnErrorOnFailure(ReinitSystemStateIfNecessary());
390 :
391 0 : CommissionerInitParams commissionerParams;
392 :
393 : // PopulateInitParams works against ControllerInitParams base class of CommissionerInitParams only
394 0 : PopulateInitParams(commissionerParams, params);
395 :
396 : // Set commissioner-specific fields not in ControllerInitParams
397 0 : commissionerParams.pairingDelegate = params.pairingDelegate;
398 0 : commissionerParams.defaultCommissioner = params.defaultCommissioner;
399 0 : commissionerParams.deviceAttestationVerifier = params.deviceAttestationVerifier;
400 :
401 0 : CHIP_ERROR err = commissioner.Init(commissionerParams);
402 :
403 0 : if (err == CHIP_NO_ERROR)
404 : {
405 0 : ControllerInitialized(commissioner);
406 : }
407 :
408 0 : return err;
409 : }
410 :
411 0 : CHIP_ERROR DeviceControllerFactory::ServiceEvents()
412 : {
413 0 : VerifyOrReturnError(mSystemState != nullptr, CHIP_ERROR_INCORRECT_STATE);
414 :
415 : #if CONFIG_DEVICE_LAYER
416 0 : ReturnErrorOnFailure(DeviceLayer::PlatformMgr().StartEventLoopTask());
417 : #endif // CONFIG_DEVICE_LAYER
418 :
419 0 : return CHIP_NO_ERROR;
420 : }
421 :
422 0 : void DeviceControllerFactory::RetainSystemState()
423 : {
424 0 : (void) mSystemState->Retain();
425 0 : }
426 :
427 0 : bool DeviceControllerFactory::ReleaseSystemState()
428 : {
429 0 : return mSystemState->Release();
430 : }
431 :
432 0 : CHIP_ERROR DeviceControllerFactory::EnsureAndRetainSystemState()
433 : {
434 0 : ReturnErrorOnFailure(ReinitSystemStateIfNecessary());
435 0 : RetainSystemState();
436 0 : return CHIP_NO_ERROR;
437 : }
438 :
439 0 : DeviceControllerFactory::~DeviceControllerFactory()
440 : {
441 0 : Shutdown();
442 0 : }
443 :
444 0 : void DeviceControllerFactory::Shutdown()
445 : {
446 0 : if (mSystemState != nullptr)
447 : {
448 : // ~DeviceControllerSystemState will call Shutdown(),
449 : // which in turn ensures that the reference count is 0.
450 0 : Platform::Delete(mSystemState);
451 0 : mSystemState = nullptr;
452 : }
453 0 : mFabricIndependentStorage = nullptr;
454 0 : mOperationalKeystore = nullptr;
455 0 : mOpCertStore = nullptr;
456 0 : mCertificateValidityPolicy = nullptr;
457 0 : mSessionResumptionStorage = nullptr;
458 0 : }
459 :
460 0 : void DeviceControllerSystemState::Shutdown()
461 : {
462 0 : VerifyOrDie(mRefCount == 0);
463 0 : if (mHaveShutDown)
464 : {
465 : // Nothing else to do here.
466 0 : return;
467 : }
468 0 : mHaveShutDown = true;
469 :
470 0 : ChipLogDetail(Controller, "Shutting down the System State, this will teardown the CHIP Stack");
471 :
472 0 : if (mTempFabricTable && mEnableServerInteractions)
473 : {
474 : // The DnssdServer is holding a reference to our temp fabric table,
475 : // which we are about to destroy. Stop it, so that it will stop trying
476 : // to use it.
477 0 : app::DnssdServer::Instance().StopServer();
478 : }
479 :
480 0 : if (mFabricTableDelegate != nullptr)
481 : {
482 0 : if (mFabrics != nullptr)
483 : {
484 0 : mFabrics->RemoveFabricDelegate(mFabricTableDelegate);
485 : }
486 :
487 0 : chip::Platform::Delete(mFabricTableDelegate);
488 0 : mFabricTableDelegate = nullptr;
489 : }
490 :
491 0 : if (mBDXTransferServer != nullptr)
492 : {
493 0 : mBDXTransferServer->Shutdown();
494 0 : chip::Platform::Delete(mBDXTransferServer);
495 0 : mBDXTransferServer = nullptr;
496 : }
497 :
498 0 : if (mCASEServer != nullptr)
499 : {
500 0 : mCASEServer->Shutdown();
501 0 : chip::Platform::Delete(mCASEServer);
502 0 : mCASEServer = nullptr;
503 : }
504 :
505 0 : if (mCASESessionManager != nullptr)
506 : {
507 0 : mCASESessionManager->Shutdown();
508 0 : Platform::Delete(mCASESessionManager);
509 0 : mCASESessionManager = nullptr;
510 : }
511 :
512 : // The above took care of CASE handshakes, and shutting down all the
513 : // controllers should have taken care of the PASE handshakes. Clean up any
514 : // outstanding secure sessions (shouldn't really be any, since controllers
515 : // should have handled that, but just in case).
516 0 : if (mSessionMgr != nullptr)
517 : {
518 0 : mSessionMgr->ExpireAllSecureSessions();
519 : }
520 :
521 : // mCASEClientPool and mSessionSetupPool must be deallocated
522 : // after mCASESessionManager, which uses them.
523 :
524 0 : if (mSessionSetupPool != nullptr)
525 : {
526 0 : Platform::Delete(mSessionSetupPool);
527 0 : mSessionSetupPool = nullptr;
528 : }
529 :
530 0 : if (mCASEClientPool != nullptr)
531 : {
532 0 : Platform::Delete(mCASEClientPool);
533 0 : mCASEClientPool = nullptr;
534 : }
535 :
536 0 : Dnssd::Resolver::Instance().Shutdown();
537 :
538 : // Shut down the interaction model
539 0 : app::InteractionModelEngine::GetInstance()->Shutdown();
540 :
541 : // Shut down the TransportMgr. This holds Inet::UDPEndPoints so it must be shut down
542 : // before PlatformMgr().Shutdown() shuts down Inet.
543 0 : if (mTransportMgr != nullptr)
544 : {
545 0 : mTransportMgr->Close();
546 0 : chip::Platform::Delete(mTransportMgr);
547 0 : mTransportMgr = nullptr;
548 : }
549 :
550 0 : if (mExchangeMgr != nullptr)
551 : {
552 0 : mExchangeMgr->Shutdown();
553 : }
554 0 : if (mSessionMgr != nullptr)
555 : {
556 0 : mSessionMgr->Shutdown();
557 : }
558 :
559 0 : mSystemLayer = nullptr;
560 0 : mUDPEndPointManager = nullptr;
561 : #if INET_CONFIG_ENABLE_TCP_ENDPOINT
562 0 : mTCPEndPointManager = nullptr;
563 : #endif
564 : #if CONFIG_NETWORK_LAYER_BLE
565 0 : mBleLayer = nullptr;
566 : #endif // CONFIG_NETWORK_LAYER_BLE
567 :
568 0 : if (mMessageCounterManager != nullptr)
569 : {
570 0 : chip::Platform::Delete(mMessageCounterManager);
571 0 : mMessageCounterManager = nullptr;
572 : }
573 :
574 0 : if (mExchangeMgr != nullptr)
575 : {
576 0 : chip::Platform::Delete(mExchangeMgr);
577 0 : mExchangeMgr = nullptr;
578 : }
579 :
580 0 : if (mUnsolicitedStatusHandler != nullptr)
581 : {
582 0 : Platform::Delete(mUnsolicitedStatusHandler);
583 0 : mUnsolicitedStatusHandler = nullptr;
584 : }
585 :
586 0 : if (mSessionMgr != nullptr)
587 : {
588 0 : chip::Platform::Delete(mSessionMgr);
589 0 : mSessionMgr = nullptr;
590 : }
591 :
592 0 : if (mReportScheduler != nullptr)
593 : {
594 0 : chip::Platform::Delete(mReportScheduler);
595 0 : mReportScheduler = nullptr;
596 : }
597 :
598 0 : if (mTimerDelegate != nullptr)
599 : {
600 0 : chip::Platform::Delete(mTimerDelegate);
601 0 : mTimerDelegate = nullptr;
602 : }
603 :
604 0 : if (mTempFabricTable != nullptr)
605 : {
606 0 : mTempFabricTable->Shutdown();
607 0 : chip::Platform::Delete(mTempFabricTable);
608 0 : mTempFabricTable = nullptr;
609 : // if we created a temp fabric table, then mFabrics points to it.
610 : // if we did not create a temp fabric table, then keep the reference
611 : // so that SetupController/Commissioner can use it
612 0 : mFabrics = nullptr;
613 : }
614 :
615 : #if CONFIG_DEVICE_LAYER
616 : //
617 : // We can safely call PlatformMgr().Shutdown(), which like DeviceController::Shutdown(),
618 : // expects to be called with external thread synchronization and will not try to acquire the
619 : // stack lock.
620 : //
621 : // Actually stopping the event queue is a separable call that applications will have to sequence.
622 : // Consumers are expected to call PlaformMgr().StopEventLoopTask() before calling
623 : // DeviceController::Shutdown() in the CONFIG_DEVICE_LAYER configuration
624 : //
625 0 : DeviceLayer::PlatformMgr().Shutdown();
626 : #endif
627 : }
628 :
629 : } // namespace Controller
630 : } // namespace chip
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