| OLD | NEW |
|---|
| (Empty) |
| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "components/proximity_auth/ble/bluetooth_low_energy_weave_client_connec
tion.h" | |
| 6 | |
| 7 #include <utility> | |
| 8 | |
| 9 #include "base/bind.h" | |
| 10 #include "base/location.h" | |
| 11 #include "base/task_runner.h" | |
| 12 #include "base/threading/thread_task_runner_handle.h" | |
| 13 #include "components/proximity_auth/bluetooth_throttler.h" | |
| 14 #include "components/proximity_auth/connection_finder.h" | |
| 15 #include "components/proximity_auth/logging/logging.h" | |
| 16 #include "components/proximity_auth/wire_message.h" | |
| 17 #include "device/bluetooth/bluetooth_gatt_connection.h" | |
| 18 | |
| 19 using device::BluetoothAdapter; | |
| 20 using device::BluetoothDevice; | |
| 21 using device::BluetoothGattConnection; | |
| 22 using device::BluetoothRemoteGattService; | |
| 23 using device::BluetoothRemoteGattCharacteristic; | |
| 24 using device::BluetoothGattNotifySession; | |
| 25 using device::BluetoothUUID; | |
| 26 | |
| 27 namespace proximity_auth { | |
| 28 namespace weave { | |
| 29 namespace { | |
| 30 | |
| 31 typedef BluetoothLowEnergyWeavePacketReceiver::State ReceiverState; | |
| 32 | |
| 33 // The UUID of the TX characteristic used to transmit data to the server. | |
| 34 const char kTXCharacteristicUUID[] = "00000100-0004-1000-8000-001A11000101"; | |
| 35 | |
| 36 // The UUID of the RX characteristic used to receive data from the server. | |
| 37 const char kRXCharacteristicUUID[] = "00000100-0004-1000-8000-001A11000102"; | |
| 38 | |
| 39 } // namespace | |
| 40 | |
| 41 BluetoothLowEnergyWeaveClientConnection:: | |
| 42 BluetoothLowEnergyWeaveClientConnection( | |
| 43 const RemoteDevice& device, | |
| 44 scoped_refptr<device::BluetoothAdapter> adapter, | |
| 45 const BluetoothUUID remote_service_uuid, | |
| 46 BluetoothThrottler* bluetooth_throttler, | |
| 47 int max_number_of_write_attempts) | |
| 48 : Connection(device), | |
| 49 adapter_(adapter), | |
| 50 remote_service_({remote_service_uuid, ""}), | |
| 51 packet_generator_( | |
| 52 BluetoothLowEnergyWeavePacketGenerator::Factory::NewInstance()), | |
| 53 packet_receiver_( | |
| 54 BluetoothLowEnergyWeavePacketReceiver::Factory::NewInstance( | |
| 55 BluetoothLowEnergyWeavePacketReceiver::ReceiverType::CLIENT)), | |
| 56 tx_characteristic_({BluetoothUUID(kTXCharacteristicUUID), ""}), | |
| 57 rx_characteristic_({BluetoothUUID(kRXCharacteristicUUID), ""}), | |
| 58 bluetooth_throttler_(bluetooth_throttler), | |
| 59 task_runner_(base::ThreadTaskRunnerHandle::Get()), | |
| 60 sub_status_(SubStatus::DISCONNECTED), | |
| 61 write_remote_characteristic_pending_(false), | |
| 62 max_number_of_write_attempts_(max_number_of_write_attempts), | |
| 63 weak_ptr_factory_(this) { | |
| 64 DCHECK(adapter_); | |
| 65 DCHECK(adapter_->IsInitialized()); | |
| 66 | |
| 67 adapter_->AddObserver(this); | |
| 68 } | |
| 69 | |
| 70 BluetoothLowEnergyWeaveClientConnection:: | |
| 71 ~BluetoothLowEnergyWeaveClientConnection() { | |
| 72 // Since the destructor can be called at anytime, it would be unwise to send a | |
| 73 // connection close since we might not be connected at all. | |
| 74 DestroyConnection(); | |
| 75 | |
| 76 if (adapter_) { | |
| 77 adapter_->RemoveObserver(this); | |
| 78 adapter_ = NULL; | |
| 79 } | |
| 80 } | |
| 81 | |
| 82 void BluetoothLowEnergyWeaveClientConnection::Connect() { | |
| 83 DCHECK(sub_status() == SubStatus::DISCONNECTED); | |
| 84 | |
| 85 SetSubStatus(SubStatus::WAITING_GATT_CONNECTION); | |
| 86 base::TimeDelta throttler_delay = bluetooth_throttler_->GetDelay(); | |
| 87 PA_LOG(INFO) << "Connecting in " << throttler_delay; | |
| 88 | |
| 89 start_time_ = base::TimeTicks::Now(); | |
| 90 | |
| 91 // If necessary, wait to create a new GATT connection. | |
| 92 // | |
| 93 // Avoid creating a new GATT connection immediately after a given device was | |
| 94 // disconnected. This is a workaround for crbug.com/508919. | |
| 95 if (!throttler_delay.is_zero()) { | |
| 96 task_runner_->PostDelayedTask( | |
| 97 FROM_HERE, | |
| 98 base::Bind( | |
| 99 &BluetoothLowEnergyWeaveClientConnection::CreateGattConnection, | |
| 100 weak_ptr_factory_.GetWeakPtr()), | |
| 101 throttler_delay); | |
| 102 return; | |
| 103 } | |
| 104 | |
| 105 CreateGattConnection(); | |
| 106 } | |
| 107 | |
| 108 void BluetoothLowEnergyWeaveClientConnection::CreateGattConnection() { | |
| 109 DCHECK(sub_status() == SubStatus::WAITING_GATT_CONNECTION); | |
| 110 | |
| 111 BluetoothDevice* remote_device = GetRemoteDevice(); | |
| 112 if (remote_device) { | |
| 113 PA_LOG(INFO) << "Creating GATT connection with " | |
| 114 << remote_device->GetAddress(); | |
| 115 | |
| 116 remote_device->CreateGattConnection( | |
| 117 base::Bind( | |
| 118 &BluetoothLowEnergyWeaveClientConnection::OnGattConnectionCreated, | |
| 119 weak_ptr_factory_.GetWeakPtr()), | |
| 120 base::Bind(&BluetoothLowEnergyWeaveClientConnection:: | |
| 121 OnCreateGattConnectionError, | |
| 122 weak_ptr_factory_.GetWeakPtr())); | |
| 123 } else { | |
| 124 SetSubStatus(SubStatus::DISCONNECTED); | |
| 125 } | |
| 126 } | |
| 127 | |
| 128 void BluetoothLowEnergyWeaveClientConnection::Disconnect() { | |
| 129 if (sub_status_ == SubStatus::CONNECTED) { | |
| 130 // Friendly disconnect by sending a connection close and then destroy the | |
| 131 // the connection once the connection close has been sent. | |
| 132 WriteRequest request(packet_generator_->CreateConnectionClose( | |
| 133 ReasonForClose::CLOSE_WITHOUT_ERROR), | |
| 134 WriteRequestType::CONNECTION_CLOSE); | |
| 135 WriteRemoteCharacteristic(request); | |
| 136 } else { | |
| 137 DestroyConnection(); | |
| 138 } | |
| 139 } | |
| 140 | |
| 141 void BluetoothLowEnergyWeaveClientConnection::DestroyConnection() { | |
| 142 if (sub_status() != SubStatus::DISCONNECTED) { | |
| 143 weak_ptr_factory_.InvalidateWeakPtrs(); | |
| 144 StopNotifySession(); | |
| 145 characteristic_finder_.reset(); | |
| 146 if (gatt_connection_) { | |
| 147 PA_LOG(INFO) << "Disconnect from device " | |
| 148 << gatt_connection_->GetDeviceAddress(); | |
| 149 | |
| 150 // Destroying BluetoothGattConnection also disconnects it. | |
| 151 gatt_connection_.reset(); | |
| 152 } | |
| 153 | |
| 154 // Only transition to the DISCONNECTED state after perfoming all necessary | |
| 155 // operations. Otherwise, it'll trigger observers that can pontentially | |
| 156 // destroy the current instance (causing a crash). | |
| 157 SetSubStatus(SubStatus::DISCONNECTED); | |
| 158 } | |
| 159 } | |
| 160 | |
| 161 void BluetoothLowEnergyWeaveClientConnection::SetSubStatus( | |
| 162 SubStatus new_sub_status) { | |
| 163 sub_status_ = new_sub_status; | |
| 164 | |
| 165 // Sets the status of parent class proximity_auth::Connection accordingly. | |
| 166 if (new_sub_status == SubStatus::CONNECTED) { | |
| 167 SetStatus(Status::CONNECTED); | |
| 168 } else if (new_sub_status == SubStatus::DISCONNECTED) { | |
| 169 SetStatus(Status::DISCONNECTED); | |
| 170 } else { | |
| 171 SetStatus(Status::IN_PROGRESS); | |
| 172 } | |
| 173 } | |
| 174 | |
| 175 void BluetoothLowEnergyWeaveClientConnection::SetTaskRunnerForTesting( | |
| 176 scoped_refptr<base::TaskRunner> task_runner) { | |
| 177 task_runner_ = task_runner; | |
| 178 } | |
| 179 | |
| 180 void BluetoothLowEnergyWeaveClientConnection::SendMessageImpl( | |
| 181 std::unique_ptr<WireMessage> message) { | |
| 182 PA_LOG(INFO) << "Sending message " << message->Serialize(); | |
| 183 std::string serialized_msg = message->Serialize(); | |
| 184 | |
| 185 std::vector<Packet> packets = | |
| 186 packet_generator_->EncodeDataMessage(serialized_msg); | |
| 187 | |
| 188 std::shared_ptr<WireMessage> request_message(message.release()); | |
| 189 | |
| 190 for (uint32_t i = 0; i < packets.size(); ++i) { | |
| 191 WriteRequestType request_type = (i == packets.size() - 1) | |
| 192 ? WriteRequestType::MESSAGE_COMPLETE | |
| 193 : WriteRequestType::REGULAR; | |
| 194 WriteRequest request(packets[i], request_type, request_message); | |
| 195 WriteRemoteCharacteristic(request); | |
| 196 } | |
| 197 } | |
| 198 | |
| 199 // Changes in the GATT connection with the remote device should be observed | |
| 200 // here. If the GATT connection is dropped, we should call DestroyConnection() | |
| 201 // anyway, so the object can notify its observers. | |
| 202 void BluetoothLowEnergyWeaveClientConnection::DeviceChanged( | |
| 203 BluetoothAdapter* adapter, | |
| 204 BluetoothDevice* device) { | |
| 205 DCHECK(device); | |
| 206 if (sub_status() == SubStatus::DISCONNECTED || | |
| 207 device->GetAddress() != GetDeviceAddress()) | |
| 208 return; | |
| 209 | |
| 210 if (sub_status() != SubStatus::WAITING_GATT_CONNECTION && | |
| 211 !device->IsConnected()) { | |
| 212 PA_LOG(INFO) << "GATT connection dropped " << GetDeviceAddress() | |
| 213 << "\ndevice connected: " << device->IsConnected() | |
| 214 << "\ngatt connection: " | |
| 215 << (gatt_connection_ ? gatt_connection_->IsConnected() | |
| 216 : false); | |
| 217 DestroyConnection(); | |
| 218 } | |
| 219 } | |
| 220 | |
| 221 void BluetoothLowEnergyWeaveClientConnection::DeviceRemoved( | |
| 222 BluetoothAdapter* adapter, | |
| 223 BluetoothDevice* device) { | |
| 224 DCHECK(device); | |
| 225 if (sub_status_ == SubStatus::DISCONNECTED || | |
| 226 device->GetAddress() != GetDeviceAddress()) | |
| 227 return; | |
| 228 | |
| 229 PA_LOG(INFO) << "Device removed " << GetDeviceAddress(); | |
| 230 DestroyConnection(); | |
| 231 } | |
| 232 | |
| 233 void BluetoothLowEnergyWeaveClientConnection::GattCharacteristicValueChanged( | |
| 234 BluetoothAdapter* adapter, | |
| 235 BluetoothRemoteGattCharacteristic* characteristic, | |
| 236 const Packet& value) { | |
| 237 DCHECK_EQ(adapter, adapter_.get()); | |
| 238 if (sub_status() != SubStatus::WAITING_CONNECTION_RESPONSE && | |
| 239 sub_status() != SubStatus::CONNECTED) | |
| 240 return; | |
| 241 | |
| 242 PA_LOG(INFO) << "Characteristic value changed: " | |
| 243 << characteristic->GetUUID().canonical_value(); | |
| 244 | |
| 245 if (characteristic->GetIdentifier() == rx_characteristic_.id) { | |
| 246 ReceiverState state = packet_receiver_->ReceivePacket(value); | |
| 247 | |
| 248 PA_LOG(INFO) << "\nReceiver State: " << state; | |
| 249 switch (state) { | |
| 250 case ReceiverState::DATA_READY: | |
| 251 OnBytesReceived(packet_receiver_->GetDataMessage()); | |
| 252 break; | |
| 253 case ReceiverState::CONNECTION_CLOSED: | |
| 254 PA_LOG(ERROR) << "Connection closed due to: " << GetReasonForClose(); | |
| 255 DestroyConnection(); | |
| 256 break; | |
| 257 case ReceiverState::ERROR_DETECTED: | |
| 258 OnPacketReceiverError(); | |
| 259 break; | |
| 260 case ReceiverState::WAITING: | |
| 261 // Receiver state should have changed from CONNECTING to WAITING if | |
| 262 // a proper connection response had been received. | |
| 263 // The max packet size selected from the connection response will be | |
| 264 // used to generate future data packets. | |
| 265 packet_generator_->SetMaxPacketSize( | |
| 266 packet_receiver_->GetMaxPacketSize()); | |
| 267 DCHECK(sub_status() == SubStatus::WAITING_CONNECTION_RESPONSE); | |
| 268 CompleteConnection(); | |
| 269 break; | |
| 270 case ReceiverState::RECEIVING_DATA: | |
| 271 // Normal in between states, so do nothing. | |
| 272 break; | |
| 273 default: | |
| 274 NOTREACHED(); | |
| 275 } | |
| 276 } | |
| 277 } | |
| 278 | |
| 279 void BluetoothLowEnergyWeaveClientConnection::CompleteConnection() { | |
| 280 PA_LOG(INFO) << "Connection completed. Time elapsed: " | |
| 281 << base::TimeTicks::Now() - start_time_; | |
| 282 SetSubStatus(SubStatus::CONNECTED); | |
| 283 } | |
| 284 | |
| 285 void BluetoothLowEnergyWeaveClientConnection::OnCreateGattConnectionError( | |
| 286 device::BluetoothDevice::ConnectErrorCode error_code) { | |
| 287 DCHECK(sub_status_ == SubStatus::WAITING_GATT_CONNECTION); | |
| 288 PA_LOG(WARNING) << "Error creating GATT connection to " | |
| 289 << remote_device().bluetooth_address | |
| 290 << " error code: " << error_code; | |
| 291 DestroyConnection(); | |
| 292 } | |
| 293 | |
| 294 void BluetoothLowEnergyWeaveClientConnection::OnGattConnectionCreated( | |
| 295 std::unique_ptr<device::BluetoothGattConnection> gatt_connection) { | |
| 296 DCHECK(sub_status() == SubStatus::WAITING_GATT_CONNECTION); | |
| 297 PA_LOG(INFO) << "GATT connection with " << gatt_connection->GetDeviceAddress() | |
| 298 << " created."; | |
| 299 PrintTimeElapsed(); | |
| 300 | |
| 301 // Informing |bluetooth_trottler_| a new connection was established. | |
| 302 bluetooth_throttler_->OnConnection(this); | |
| 303 | |
| 304 gatt_connection_ = std::move(gatt_connection); | |
| 305 SetSubStatus(SubStatus::WAITING_CHARACTERISTICS); | |
| 306 characteristic_finder_.reset(CreateCharacteristicsFinder( | |
| 307 base::Bind( | |
| 308 &BluetoothLowEnergyWeaveClientConnection::OnCharacteristicsFound, | |
| 309 weak_ptr_factory_.GetWeakPtr()), | |
| 310 base::Bind(&BluetoothLowEnergyWeaveClientConnection:: | |
| 311 OnCharacteristicsFinderError, | |
| 312 weak_ptr_factory_.GetWeakPtr()))); | |
| 313 } | |
| 314 | |
| 315 BluetoothLowEnergyCharacteristicsFinder* | |
| 316 BluetoothLowEnergyWeaveClientConnection::CreateCharacteristicsFinder( | |
| 317 const BluetoothLowEnergyCharacteristicsFinder::SuccessCallback& | |
| 318 success_callback, | |
| 319 const BluetoothLowEnergyCharacteristicsFinder::ErrorCallback& | |
| 320 error_callback) { | |
| 321 return new BluetoothLowEnergyCharacteristicsFinder( | |
| 322 adapter_, GetRemoteDevice(), remote_service_, tx_characteristic_, | |
| 323 rx_characteristic_, success_callback, error_callback); | |
| 324 } | |
| 325 | |
| 326 void BluetoothLowEnergyWeaveClientConnection::OnCharacteristicsFound( | |
| 327 const RemoteAttribute& service, | |
| 328 const RemoteAttribute& tx_characteristic, | |
| 329 const RemoteAttribute& rx_characteristic) { | |
| 330 PA_LOG(INFO) << "Remote chacteristics found."; | |
| 331 PrintTimeElapsed(); | |
| 332 | |
| 333 DCHECK(sub_status() == SubStatus::WAITING_CHARACTERISTICS); | |
| 334 remote_service_ = service; | |
| 335 tx_characteristic_ = tx_characteristic; | |
| 336 rx_characteristic_ = rx_characteristic; | |
| 337 | |
| 338 SetSubStatus(SubStatus::CHARACTERISTICS_FOUND); | |
| 339 StartNotifySession(); | |
| 340 } | |
| 341 | |
| 342 void BluetoothLowEnergyWeaveClientConnection::OnCharacteristicsFinderError( | |
| 343 const RemoteAttribute& tx_characteristic, | |
| 344 const RemoteAttribute& rx_characteristic) { | |
| 345 DCHECK(sub_status() == SubStatus::WAITING_CHARACTERISTICS); | |
| 346 PA_LOG(WARNING) << "Connection error, missing characteristics for SmartLock " | |
| 347 "service.\n" | |
| 348 << (tx_characteristic.id.empty() | |
| 349 ? tx_characteristic.uuid.canonical_value() | |
| 350 : "") | |
| 351 << ", " | |
| 352 << (rx_characteristic.id.empty() | |
| 353 ? ", " + rx_characteristic.uuid.canonical_value() | |
| 354 : "") | |
| 355 << " not found."; | |
| 356 | |
| 357 DestroyConnection(); | |
| 358 } | |
| 359 | |
| 360 void BluetoothLowEnergyWeaveClientConnection::StartNotifySession() { | |
| 361 DCHECK(sub_status() == SubStatus::CHARACTERISTICS_FOUND); | |
| 362 BluetoothRemoteGattCharacteristic* characteristic = | |
| 363 GetGattCharacteristic(rx_characteristic_.id); | |
| 364 CHECK(characteristic); | |
| 365 | |
| 366 // This is a workaround for crbug.com/507325. If |characteristic| is already | |
| 367 // notifying |characteristic->StartNotifySession()| will fail with | |
| 368 // GATT_ERROR_FAILED. | |
| 369 if (characteristic->IsNotifying()) { | |
| 370 PA_LOG(INFO) << characteristic->GetUUID().canonical_value() | |
| 371 << " already notifying."; | |
| 372 SetSubStatus(SubStatus::NOTIFY_SESSION_READY); | |
| 373 SendConnectionRequest(); | |
| 374 return; | |
| 375 } | |
| 376 | |
| 377 SetSubStatus(SubStatus::WAITING_NOTIFY_SESSION); | |
| 378 characteristic->StartNotifySession( | |
| 379 base::Bind( | |
| 380 &BluetoothLowEnergyWeaveClientConnection::OnNotifySessionStarted, | |
| 381 weak_ptr_factory_.GetWeakPtr()), | |
| 382 base::Bind(&BluetoothLowEnergyWeaveClientConnection::OnNotifySessionError, | |
| 383 weak_ptr_factory_.GetWeakPtr())); | |
| 384 } | |
| 385 | |
| 386 void BluetoothLowEnergyWeaveClientConnection::OnNotifySessionStarted( | |
| 387 std::unique_ptr<BluetoothGattNotifySession> notify_session) { | |
| 388 DCHECK(sub_status() == SubStatus::WAITING_NOTIFY_SESSION); | |
| 389 PA_LOG(INFO) << "Notification session started " | |
| 390 << notify_session->GetCharacteristicIdentifier(); | |
| 391 PrintTimeElapsed(); | |
| 392 | |
| 393 SetSubStatus(SubStatus::NOTIFY_SESSION_READY); | |
| 394 notify_session_ = std::move(notify_session); | |
| 395 | |
| 396 SendConnectionRequest(); | |
| 397 } | |
| 398 | |
| 399 void BluetoothLowEnergyWeaveClientConnection::OnNotifySessionError( | |
| 400 BluetoothRemoteGattService::GattErrorCode error) { | |
| 401 DCHECK(sub_status() == SubStatus::WAITING_NOTIFY_SESSION); | |
| 402 PA_LOG(WARNING) << "Error starting notification session: " << error; | |
| 403 DestroyConnection(); | |
| 404 } | |
| 405 | |
| 406 void BluetoothLowEnergyWeaveClientConnection::StopNotifySession() { | |
| 407 if (notify_session_) { | |
| 408 notify_session_->Stop(base::Bind(&base::DoNothing)); | |
| 409 notify_session_.reset(); | |
| 410 } | |
| 411 } | |
| 412 | |
| 413 void BluetoothLowEnergyWeaveClientConnection::SendConnectionRequest() { | |
| 414 if (sub_status() == SubStatus::NOTIFY_SESSION_READY) { | |
| 415 PA_LOG(INFO) << "Sending connection request to the server"; | |
| 416 SetSubStatus(SubStatus::WAITING_CONNECTION_RESPONSE); | |
| 417 | |
| 418 WriteRequest write_request(packet_generator_->CreateConnectionRequest(), | |
| 419 WriteRequestType::CONNECTION_REQUEST); | |
| 420 | |
| 421 WriteRemoteCharacteristic(write_request); | |
| 422 } | |
| 423 } | |
| 424 | |
| 425 void BluetoothLowEnergyWeaveClientConnection::WriteRemoteCharacteristic( | |
| 426 const WriteRequest& request) { | |
| 427 write_requests_queue_.push(request); | |
| 428 PA_LOG(ERROR) << "you got " << request.message.get(); | |
| 429 ProcessNextWriteRequest(); | |
| 430 } | |
| 431 | |
| 432 void BluetoothLowEnergyWeaveClientConnection::ProcessNextWriteRequest() { | |
| 433 BluetoothRemoteGattCharacteristic* characteristic = | |
| 434 GetGattCharacteristic(tx_characteristic_.id); | |
| 435 if (!write_requests_queue_.empty() && !write_remote_characteristic_pending_ && | |
| 436 characteristic) { | |
| 437 write_remote_characteristic_pending_ = true; | |
| 438 const WriteRequest& next_request = write_requests_queue_.front(); | |
| 439 | |
| 440 PA_LOG(INFO) << "Writing to characteristic " << next_request.value.size() | |
| 441 << " bytes"; | |
| 442 characteristic->WriteRemoteCharacteristic( | |
| 443 next_request.value, | |
| 444 base::Bind(&BluetoothLowEnergyWeaveClientConnection:: | |
| 445 OnRemoteCharacteristicWritten, | |
| 446 weak_ptr_factory_.GetWeakPtr()), | |
| 447 base::Bind(&BluetoothLowEnergyWeaveClientConnection:: | |
| 448 OnWriteRemoteCharacteristicError, | |
| 449 weak_ptr_factory_.GetWeakPtr())); | |
| 450 } | |
| 451 } | |
| 452 | |
| 453 void BluetoothLowEnergyWeaveClientConnection::OnRemoteCharacteristicWritten() { | |
| 454 PA_LOG(INFO) << "Characteristic written."; | |
| 455 | |
| 456 DCHECK(!write_requests_queue_.empty()); | |
| 457 | |
| 458 const WriteRequest& request = write_requests_queue_.front(); | |
| 459 | |
| 460 switch (request.request_type) { | |
| 461 case WriteRequestType::REGULAR: | |
| 462 case WriteRequestType::CONNECTION_REQUEST: | |
| 463 break; | |
| 464 case WriteRequestType::MESSAGE_COMPLETE: | |
| 465 OnDidSendMessage(*request.message, true); | |
| 466 break; | |
| 467 case WriteRequestType::CONNECTION_CLOSE: | |
| 468 DestroyConnection(); | |
| 469 break; | |
| 470 default: | |
| 471 NOTREACHED(); | |
| 472 } | |
| 473 | |
| 474 // Removes the top of queue (already processed) and process the next request. | |
| 475 write_requests_queue_.pop(); | |
| 476 write_remote_characteristic_pending_ = false; | |
| 477 ProcessNextWriteRequest(); | |
| 478 } | |
| 479 | |
| 480 void BluetoothLowEnergyWeaveClientConnection::OnWriteRemoteCharacteristicError( | |
| 481 BluetoothRemoteGattService::GattErrorCode error) { | |
| 482 PA_LOG(WARNING) << "Error " << error << " writing characteristic: " | |
| 483 << tx_characteristic_.uuid.canonical_value(); | |
| 484 | |
| 485 write_remote_characteristic_pending_ = false; | |
| 486 | |
| 487 DCHECK(!write_requests_queue_.empty()); | |
| 488 WriteRequest* request = &write_requests_queue_.front(); | |
| 489 | |
| 490 // Increases the number of failed attempts and retry. | |
| 491 | |
| 492 if (++request->number_of_failed_attempts >= max_number_of_write_attempts_) { | |
| 493 switch (request->request_type) { | |
| 494 case WriteRequestType::REGULAR: | |
| 495 case WriteRequestType::MESSAGE_COMPLETE: | |
| 496 OnDidSendMessage(*request->message, false); | |
| 497 break; | |
| 498 case WriteRequestType::CONNECTION_CLOSE: | |
| 499 case WriteRequestType::CONNECTION_REQUEST: | |
| 500 break; | |
| 501 default: | |
| 502 NOTREACHED(); | |
| 503 } | |
| 504 | |
| 505 // If the previous write failed that many times, probably can't write a | |
| 506 // connection close either, so just destroy the connection. | |
| 507 DestroyConnection(); | |
| 508 } else { | |
| 509 ProcessNextWriteRequest(); | |
| 510 } | |
| 511 } | |
| 512 | |
| 513 void BluetoothLowEnergyWeaveClientConnection::OnPacketReceiverError() { | |
| 514 PA_LOG(ERROR) << "Received erroneous packet. Closing connection."; | |
| 515 | |
| 516 WriteRequest request(packet_generator_->CreateConnectionClose( | |
| 517 packet_receiver_->GetReasonToClose()), | |
| 518 WriteRequestType::CONNECTION_CLOSE); | |
| 519 | |
| 520 // Skip all other writes that's not in progress. | |
| 521 | |
| 522 // C++ queue does not have a clear method. | |
| 523 // According to stackoverflow | |
| 524 // "http://stackoverflow.com/questions/709146/how-do-i-clear-the-stdqueue- | |
| 525 // efficiently" | |
| 526 std::queue<WriteRequest> empty; | |
| 527 std::swap(write_requests_queue_, empty); | |
| 528 | |
| 529 if (write_remote_characteristic_pending_) { | |
| 530 // Add the in progress write back to the queue. | |
| 531 write_requests_queue_.push(empty.front()); | |
| 532 } | |
| 533 | |
| 534 WriteRemoteCharacteristic(request); | |
| 535 } | |
| 536 | |
| 537 void BluetoothLowEnergyWeaveClientConnection::PrintTimeElapsed() { | |
| 538 PA_LOG(INFO) << "Time elapsed: " << base::TimeTicks::Now() - start_time_; | |
| 539 } | |
| 540 | |
| 541 std::string BluetoothLowEnergyWeaveClientConnection::GetDeviceAddress() { | |
| 542 // When the remote device is connected we should rely on the address given by | |
| 543 // |gatt_connection_|. As the device address may change if the device is | |
| 544 // paired. The address in |gatt_connection_| is automatically updated in this | |
| 545 // case. | |
| 546 return gatt_connection_ ? gatt_connection_->GetDeviceAddress() | |
| 547 : remote_device().bluetooth_address; | |
| 548 } | |
| 549 | |
| 550 BluetoothDevice* BluetoothLowEnergyWeaveClientConnection::GetRemoteDevice() { | |
| 551 // It's not possible to simply use | |
| 552 // |adapter_->GetDevice(GetDeviceAddress())| to find the device with MAC | |
| 553 // address |GetDeviceAddress()|. For paired devices, | |
| 554 // BluetoothAdapter::GetDevice(XXX) searches for the temporary MAC address | |
| 555 // XXX, whereas |GetDeviceAddress()| is the real MAC address. This is a | |
| 556 // bug in the way device::BluetoothAdapter is storing the devices (see | |
| 557 // crbug.com/497841). | |
| 558 std::vector<BluetoothDevice*> devices = adapter_->GetDevices(); | |
| 559 for (const auto& device : devices) { | |
| 560 if (device->GetAddress() == GetDeviceAddress()) | |
| 561 return device; | |
| 562 } | |
| 563 | |
| 564 return nullptr; | |
| 565 } | |
| 566 | |
| 567 BluetoothRemoteGattService* | |
| 568 BluetoothLowEnergyWeaveClientConnection::GetRemoteService() { | |
| 569 BluetoothDevice* remote_device = GetRemoteDevice(); | |
| 570 if (!remote_device) { | |
| 571 PA_LOG(WARNING) << "Remote device not found."; | |
| 572 return NULL; | |
| 573 } | |
| 574 if (remote_service_.id.empty()) { | |
| 575 std::vector<BluetoothRemoteGattService*> services = | |
| 576 remote_device->GetGattServices(); | |
| 577 for (const auto& service : services) | |
| 578 if (service->GetUUID() == remote_service_.uuid) { | |
| 579 remote_service_.id = service->GetIdentifier(); | |
| 580 break; | |
| 581 } | |
| 582 } | |
| 583 return remote_device->GetGattService(remote_service_.id); | |
| 584 } | |
| 585 | |
| 586 BluetoothRemoteGattCharacteristic* | |
| 587 BluetoothLowEnergyWeaveClientConnection::GetGattCharacteristic( | |
| 588 const std::string& gatt_characteristic) { | |
| 589 BluetoothRemoteGattService* remote_service = GetRemoteService(); | |
| 590 if (!remote_service) { | |
| 591 PA_LOG(WARNING) << "Remote service not found."; | |
| 592 return NULL; | |
| 593 } | |
| 594 return remote_service->GetCharacteristic(gatt_characteristic); | |
| 595 } | |
| 596 | |
| 597 std::string BluetoothLowEnergyWeaveClientConnection::GetReasonForClose() { | |
| 598 switch (packet_receiver_->GetReasonForClose()) { | |
| 599 case ReasonForClose::CLOSE_WITHOUT_ERROR: | |
| 600 return "CLOSE_WITHOUT_ERROR"; | |
| 601 case ReasonForClose::UNKNOWN_ERROR: | |
| 602 return "UNKNOWN_ERROR"; | |
| 603 case ReasonForClose::NO_COMMON_VERSION_SUPPORTED: | |
| 604 return "NO_COMMON_VERSION_SUPPORTED"; | |
| 605 case ReasonForClose::RECEIVED_PACKET_OUT_OF_SEQUENCE: | |
| 606 return "RECEIVED_PACKET_OUT_OF_SEQUENCE"; | |
| 607 case ReasonForClose::APPLICATION_ERROR: | |
| 608 return "APPLICATION_ERROR"; | |
| 609 default: | |
| 610 NOTREACHED(); | |
| 611 return ""; | |
| 612 } | |
| 613 } | |
| 614 | |
| 615 BluetoothLowEnergyWeaveClientConnection::WriteRequest::WriteRequest( | |
| 616 const Packet& val, | |
| 617 WriteRequestType request_type, | |
| 618 std::shared_ptr<WireMessage> message) | |
| 619 : value(val), | |
| 620 request_type(request_type), | |
| 621 message(message), | |
| 622 number_of_failed_attempts(0) {} | |
| 623 | |
| 624 BluetoothLowEnergyWeaveClientConnection::WriteRequest::WriteRequest( | |
| 625 const Packet& val, | |
| 626 WriteRequestType request_type) | |
| 627 : value(val), | |
| 628 request_type(request_type), | |
| 629 message(nullptr), | |
| 630 number_of_failed_attempts(0) {} | |
| 631 | |
| 632 BluetoothLowEnergyWeaveClientConnection::WriteRequest::WriteRequest( | |
| 633 const WriteRequest& other) = default; | |
| 634 | |
| 635 BluetoothLowEnergyWeaveClientConnection::WriteRequest::~WriteRequest() {} | |
| 636 | |
| 637 } // namespace weave | |
| 638 | |
| 639 } // namespace proximity_auth | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2189913002:
Revert of Substituting legacy protocol with uWeave protocol (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master