device/bluetooth/bluetooth_adapter_chromeos.cc

   1 // Copyright 2013 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 "device/bluetooth/bluetooth_adapter_chromeos.h"
   6
   7 #include <string>
   8
   9 #include "base/bind.h"
  10 #include "base/location.h"
  11 #include "base/logging.h"
  12 #include "base/metrics/histogram.h"
  13 #include "base/sequenced_task_runner.h"
  14 #include "base/single_thread_task_runner.h"
  15 #include "base/sys_info.h"
  16 #include "base/thread_task_runner_handle.h"
  17 #include "chromeos/dbus/bluetooth_adapter_client.h"
  18 #include "chromeos/dbus/bluetooth_agent_manager_client.h"
  19 #include "chromeos/dbus/bluetooth_agent_service_provider.h"
  20 #include "chromeos/dbus/bluetooth_device_client.h"
  21 #include "chromeos/dbus/bluetooth_input_client.h"
  22 #include "chromeos/dbus/dbus_thread_manager.h"
  23 #include "device/bluetooth/bluetooth_adapter_profile_chromeos.h"
  24 #include "device/bluetooth/bluetooth_advertisement_chromeos.h"
  25 #include "device/bluetooth/bluetooth_audio_sink_chromeos.h"
  26 #include "device/bluetooth/bluetooth_device.h"
  27 #include "device/bluetooth/bluetooth_device_chromeos.h"
  28 #include "device/bluetooth/bluetooth_pairing_chromeos.h"
  29 #include "device/bluetooth/bluetooth_remote_gatt_characteristic_chromeos.h"
  30 #include "device/bluetooth/bluetooth_remote_gatt_descriptor_chromeos.h"
  31 #include "device/bluetooth/bluetooth_remote_gatt_service_chromeos.h"
  32 #include "device/bluetooth/bluetooth_socket_chromeos.h"
  33 #include "device/bluetooth/bluetooth_socket_thread.h"
  34 #include "device/bluetooth/bluetooth_uuid.h"
  35 #include "third_party/cros_system_api/dbus/service_constants.h"
  36
  37 using device::BluetoothAdapter;
  38 using device::BluetoothAudioSink;
  39 using device::BluetoothDevice;
  40 using device::BluetoothDiscoveryFilter;
  41 using device::BluetoothSocket;
  42 using device::BluetoothUUID;
  43
  44 namespace {
  45
  46 // The agent path is relatively meaningless since BlueZ only permits one to
  47 // exist per D-Bus connection, it just has to be unique within Chromium.
  48 const char kAgentPath[] = "/org/chromium/bluetooth_agent";
  49
  50 void OnUnregisterAgentError(const std::string& error_name,
  51                             const std::string& error_message) {
  52   // It's okay if the agent didn't exist, it means we never saw an adapter.
  53   if (error_name == bluetooth_agent_manager::kErrorDoesNotExist)
  54     return;
  55
  56   LOG(WARNING) << "Failed to unregister pairing agent: "
  57                << error_name << ": " << error_message;
  58 }
  59
  60 }  // namespace
  61
  62 namespace device {
  63
  64 // static
  65 base::WeakPtr<BluetoothAdapter> BluetoothAdapter::CreateAdapter(
  66     const InitCallback& init_callback) {
  67   return chromeos::BluetoothAdapterChromeOS::CreateAdapter();
  68 }
  69
  70 }
  71
  72 namespace chromeos {
  73
  74 // static
  75 base::WeakPtr<BluetoothAdapter> BluetoothAdapterChromeOS::CreateAdapter() {
  76   BluetoothAdapterChromeOS* adapter = new BluetoothAdapterChromeOS();
  77   return adapter->weak_ptr_factory_.GetWeakPtr();
  78 }
  79
  80 void BluetoothAdapterChromeOS::Shutdown() {
  81   if (dbus_is_shutdown_)
  82     return;
  83   DCHECK(DBusThreadManager::IsInitialized())
  84       << "Call BluetoothAdapterFactory::Shutdown() before "
  85          "DBusThreadManager::Shutdown().";
  86
  87   if (IsPresent())
  88     RemoveAdapter();  // Also deletes devices_.
  89   DCHECK(devices_.empty());
  90   // profiles_ should be empty because all BluetoothSockets have been signaled
  91   // that this adapter is disappearing.
  92   DCHECK(profiles_.empty());
  93
  94   for (auto& it : profile_queues_)
  95     delete it.second;
  96   profile_queues_.clear();
  97
  98   DBusThreadManager::Get()->GetBluetoothAdapterClient()->RemoveObserver(this);
  99   DBusThreadManager::Get()->GetBluetoothDeviceClient()->RemoveObserver(this);
 100   DBusThreadManager::Get()->GetBluetoothInputClient()->RemoveObserver(this);
 101
 102   VLOG(1) << "Unregistering pairing agent";
 103   DBusThreadManager::Get()->GetBluetoothAgentManagerClient()->UnregisterAgent(
 104       dbus::ObjectPath(kAgentPath), base::Bind(&base::DoNothing),
 105       base::Bind(&OnUnregisterAgentError));
 106
 107   agent_.reset();
 108   dbus_is_shutdown_ = true;
 109 }
 110
 111 BluetoothAdapterChromeOS::BluetoothAdapterChromeOS()
 112     : dbus_is_shutdown_(false),
 113       num_discovery_sessions_(0),
 114       discovery_request_pending_(false),
 115       weak_ptr_factory_(this) {
 116   ui_task_runner_ = base::ThreadTaskRunnerHandle::Get();
 117   socket_thread_ = device::BluetoothSocketThread::Get();
 118
 119   DBusThreadManager::Get()->GetBluetoothAdapterClient()->AddObserver(this);
 120   DBusThreadManager::Get()->GetBluetoothDeviceClient()->AddObserver(this);
 121   DBusThreadManager::Get()->GetBluetoothInputClient()->AddObserver(this);
 122
 123   // Register the pairing agent.
 124   dbus::Bus* system_bus = DBusThreadManager::Get()->GetSystemBus();
 125   agent_.reset(BluetoothAgentServiceProvider::Create(
 126       system_bus, dbus::ObjectPath(kAgentPath), this));
 127   DCHECK(agent_.get());
 128
 129   std::vector<dbus::ObjectPath> object_paths =
 130       DBusThreadManager::Get()->GetBluetoothAdapterClient()->GetAdapters();
 131
 132   if (!object_paths.empty()) {
 133     VLOG(1) << object_paths.size() << " Bluetooth adapter(s) available.";
 134     SetAdapter(object_paths[0]);
 135   }
 136 }
 137
 138 BluetoothAdapterChromeOS::~BluetoothAdapterChromeOS() {
 139   Shutdown();
 140 }
 141
 142 std::string BluetoothAdapterChromeOS::GetAddress() const {
 143   if (!IsPresent())
 144     return std::string();
 145
 146   BluetoothAdapterClient::Properties* properties =
 147       DBusThreadManager::Get()->GetBluetoothAdapterClient()->
 148           GetProperties(object_path_);
 149   DCHECK(properties);
 150
 151   return BluetoothDevice::CanonicalizeAddress(properties->address.value());
 152 }
 153
 154 std::string BluetoothAdapterChromeOS::GetName() const {
 155   if (!IsPresent())
 156     return std::string();
 157
 158   BluetoothAdapterClient::Properties* properties =
 159       DBusThreadManager::Get()->GetBluetoothAdapterClient()->
 160           GetProperties(object_path_);
 161   DCHECK(properties);
 162
 163   return properties->alias.value();
 164 }
 165
 166 void BluetoothAdapterChromeOS::SetName(const std::string& name,
 167                                        const base::Closure& callback,
 168                                        const ErrorCallback& error_callback) {
 169   if (!IsPresent()) {
 170     error_callback.Run();
 171     return;
 172   }
 173
 174   DBusThreadManager::Get()->GetBluetoothAdapterClient()->
 175       GetProperties(object_path_)->alias.Set(
 176           name,
 177           base::Bind(&BluetoothAdapterChromeOS::OnPropertyChangeCompleted,
 178                      weak_ptr_factory_.GetWeakPtr(),
 179                      callback,
 180                      error_callback));
 181 }
 182
 183 bool BluetoothAdapterChromeOS::IsInitialized() const {
 184   return true;
 185 }
 186
 187 bool BluetoothAdapterChromeOS::IsPresent() const {
 188   return !dbus_is_shutdown_ && !object_path_.value().empty();
 189 }
 190
 191 bool BluetoothAdapterChromeOS::IsPowered() const {
 192   if (!IsPresent())
 193     return false;
 194
 195   BluetoothAdapterClient::Properties* properties =
 196       DBusThreadManager::Get()->GetBluetoothAdapterClient()->
 197           GetProperties(object_path_);
 198
 199   return properties->powered.value();
 200 }
 201
 202 void BluetoothAdapterChromeOS::SetPowered(
 203     bool powered,
 204     const base::Closure& callback,
 205     const ErrorCallback& error_callback) {
 206   if (!IsPresent()) {
 207     error_callback.Run();
 208     return;
 209   }
 210
 211   DBusThreadManager::Get()->GetBluetoothAdapterClient()->
 212       GetProperties(object_path_)->powered.Set(
 213           powered,
 214           base::Bind(&BluetoothAdapterChromeOS::OnPropertyChangeCompleted,
 215                      weak_ptr_factory_.GetWeakPtr(),
 216                      callback,
 217                      error_callback));
 218 }
 219
 220 bool BluetoothAdapterChromeOS::IsDiscoverable() const {
 221   if (!IsPresent())
 222     return false;
 223
 224   BluetoothAdapterClient::Properties* properties =
 225       DBusThreadManager::Get()->GetBluetoothAdapterClient()->
 226           GetProperties(object_path_);
 227
 228   return properties->discoverable.value();
 229 }
 230
 231 void BluetoothAdapterChromeOS::SetDiscoverable(
 232     bool discoverable,
 233     const base::Closure& callback,
 234     const ErrorCallback& error_callback) {
 235   if (!IsPresent()) {
 236     error_callback.Run();
 237     return;
 238   }
 239
 240   DBusThreadManager::Get()->GetBluetoothAdapterClient()->
 241       GetProperties(object_path_)->discoverable.Set(
 242           discoverable,
 243           base::Bind(&BluetoothAdapterChromeOS::OnSetDiscoverable,
 244                      weak_ptr_factory_.GetWeakPtr(),
 245                      callback,
 246                      error_callback));
 247 }
 248
 249 bool BluetoothAdapterChromeOS::IsDiscovering() const {
 250   if (!IsPresent())
 251     return false;
 252
 253   BluetoothAdapterClient::Properties* properties =
 254       DBusThreadManager::Get()->GetBluetoothAdapterClient()->
 255           GetProperties(object_path_);
 256
 257   return properties->discovering.value();
 258 }
 259
 260 void BluetoothAdapterChromeOS::CreateRfcommService(
 261     const BluetoothUUID& uuid,
 262     const ServiceOptions& options,
 263     const CreateServiceCallback& callback,
 264     const CreateServiceErrorCallback& error_callback) {
 265   DCHECK(!dbus_is_shutdown_);
 266   VLOG(1) << object_path_.value() << ": Creating RFCOMM service: "
 267           << uuid.canonical_value();
 268   scoped_refptr<BluetoothSocketChromeOS> socket =
 269       BluetoothSocketChromeOS::CreateBluetoothSocket(
 270           ui_task_runner_, socket_thread_);
 271   socket->Listen(this,
 272                  BluetoothSocketChromeOS::kRfcomm,
 273                  uuid,
 274                  options,
 275                  base::Bind(callback, socket),
 276                  error_callback);
 277 }
 278
 279 void BluetoothAdapterChromeOS::CreateL2capService(
 280     const BluetoothUUID& uuid,
 281     const ServiceOptions& options,
 282     const CreateServiceCallback& callback,
 283     const CreateServiceErrorCallback& error_callback) {
 284   DCHECK(!dbus_is_shutdown_);
 285   VLOG(1) << object_path_.value() << ": Creating L2CAP service: "
 286           << uuid.canonical_value();
 287   scoped_refptr<BluetoothSocketChromeOS> socket =
 288       BluetoothSocketChromeOS::CreateBluetoothSocket(
 289           ui_task_runner_, socket_thread_);
 290   socket->Listen(this,
 291                  BluetoothSocketChromeOS::kL2cap,
 292                  uuid,
 293                  options,
 294                  base::Bind(callback, socket),
 295                  error_callback);
 296 }
 297
 298 void BluetoothAdapterChromeOS::RegisterAudioSink(
 299     const BluetoothAudioSink::Options& options,
 300     const device::BluetoothAdapter::AcquiredCallback& callback,
 301     const BluetoothAudioSink::ErrorCallback& error_callback) {
 302   VLOG(1) << "Registering audio sink";
 303   if (!this->IsPresent()) {
 304     error_callback.Run(BluetoothAudioSink::ERROR_INVALID_ADAPTER);
 305     return;
 306   }
 307   scoped_refptr<BluetoothAudioSinkChromeOS> audio_sink(
 308       new BluetoothAudioSinkChromeOS(this));
 309   audio_sink->Register(
 310       options, base::Bind(&BluetoothAdapterChromeOS::OnRegisterAudioSink,
 311                           weak_ptr_factory_.GetWeakPtr(), callback,
 312                           error_callback, audio_sink),
 313       error_callback);
 314 }
 315
 316 void BluetoothAdapterChromeOS::RegisterAdvertisement(
 317     scoped_ptr<device::BluetoothAdvertisement::Data> advertisement_data,
 318     const CreateAdvertisementCallback& callback,
 319     const CreateAdvertisementErrorCallback& error_callback) {
 320   scoped_refptr<BluetoothAdvertisementChromeOS> advertisement(
 321       new BluetoothAdvertisementChromeOS(advertisement_data.Pass(), this));
 322   advertisement->Register(base::Bind(callback, advertisement), error_callback);
 323 }
 324
 325 void BluetoothAdapterChromeOS::RemovePairingDelegateInternal(
 326     BluetoothDevice::PairingDelegate* pairing_delegate) {
 327   // Before removing a pairing delegate make sure that there aren't any devices
 328   // currently using it; if there are, clear the pairing context which will
 329   // make any responses no-ops.
 330   for (DevicesMap::iterator iter = devices_.begin();
 331        iter != devices_.end(); ++iter) {
 332     BluetoothDeviceChromeOS* device_chromeos =
 333         static_cast<BluetoothDeviceChromeOS*>(iter->second);
 334
 335     BluetoothPairingChromeOS* pairing = device_chromeos->GetPairing();
 336     if (pairing && pairing->GetPairingDelegate() == pairing_delegate)
 337       device_chromeos->EndPairing();
 338   }
 339 }
 340
 341 void BluetoothAdapterChromeOS::AdapterAdded(
 342     const dbus::ObjectPath& object_path) {
 343   // Set the adapter to the newly added adapter only if no adapter is present.
 344   if (!IsPresent())
 345     SetAdapter(object_path);
 346 }
 347
 348 void BluetoothAdapterChromeOS::AdapterRemoved(
 349     const dbus::ObjectPath& object_path) {
 350   if (object_path == object_path_)
 351     RemoveAdapter();
 352 }
 353
 354 void BluetoothAdapterChromeOS::AdapterPropertyChanged(
 355     const dbus::ObjectPath& object_path,
 356     const std::string& property_name) {
 357   if (object_path != object_path_)
 358     return;
 359   DCHECK(IsPresent());
 360
 361   BluetoothAdapterClient::Properties* properties =
 362       DBusThreadManager::Get()->GetBluetoothAdapterClient()->
 363           GetProperties(object_path_);
 364
 365   if (property_name == properties->powered.name())
 366     PoweredChanged(properties->powered.value());
 367   else if (property_name == properties->discoverable.name())
 368     DiscoverableChanged(properties->discoverable.value());
 369   else if (property_name == properties->discovering.name())
 370     DiscoveringChanged(properties->discovering.value());
 371 }
 372
 373 void BluetoothAdapterChromeOS::DeviceAdded(
 374   const dbus::ObjectPath& object_path) {
 375   DCHECK(DBusThreadManager::Get());
 376   BluetoothDeviceClient::Properties* properties =
 377       DBusThreadManager::Get()->GetBluetoothDeviceClient()->
 378           GetProperties(object_path);
 379   if (!properties || properties->adapter.value() != object_path_)
 380     return;
 381   DCHECK(IsPresent());
 382
 383   BluetoothDeviceChromeOS* device_chromeos =
 384       new BluetoothDeviceChromeOS(this,
 385                                   object_path,
 386                                   ui_task_runner_,
 387                                   socket_thread_);
 388   DCHECK(devices_.find(device_chromeos->GetAddress()) == devices_.end());
 389
 390   devices_[device_chromeos->GetAddress()] = device_chromeos;
 391
 392   FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_,
 393                     DeviceAdded(this, device_chromeos));
 394 }
 395
 396 void BluetoothAdapterChromeOS::DeviceRemoved(
 397     const dbus::ObjectPath& object_path) {
 398   for (DevicesMap::iterator iter = devices_.begin();
 399        iter != devices_.end(); ++iter) {
 400     BluetoothDeviceChromeOS* device_chromeos =
 401         static_cast<BluetoothDeviceChromeOS*>(iter->second);
 402     if (device_chromeos->object_path() == object_path) {
 403       devices_.erase(iter);
 404
 405       FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_,
 406                         DeviceRemoved(this, device_chromeos));
 407       delete device_chromeos;
 408       return;
 409     }
 410   }
 411 }
 412
 413 void BluetoothAdapterChromeOS::DevicePropertyChanged(
 414     const dbus::ObjectPath& object_path,
 415     const std::string& property_name) {
 416   BluetoothDeviceChromeOS* device_chromeos = GetDeviceWithPath(object_path);
 417   if (!device_chromeos)
 418     return;
 419
 420   BluetoothDeviceClient::Properties* properties =
 421       DBusThreadManager::Get()->GetBluetoothDeviceClient()->
 422           GetProperties(object_path);
 423
 424   if (property_name == properties->bluetooth_class.name() ||
 425       property_name == properties->address.name() ||
 426       property_name == properties->alias.name() ||
 427       property_name == properties->paired.name() ||
 428       property_name == properties->trusted.name() ||
 429       property_name == properties->connected.name() ||
 430       property_name == properties->uuids.name() ||
 431       property_name == properties->rssi.name())
 432     NotifyDeviceChanged(device_chromeos);
 433
 434   // When a device becomes paired, mark it as trusted so that the user does
 435   // not need to approve every incoming connection
 436   if (property_name == properties->paired.name() &&
 437       properties->paired.value() && !properties->trusted.value())
 438     device_chromeos->SetTrusted();
 439
 440   // UMA connection counting
 441   if (property_name == properties->connected.name()) {
 442     // PlayStation joystick tries to reconnect after disconnection from USB.
 443     // If it is still not trusted, set it, so it becomes available on the
 444     // list of known devices.
 445     if (properties->connected.value() && device_chromeos->IsTrustable() &&
 446         !properties->trusted.value())
 447       device_chromeos->SetTrusted();
 448
 449     int count = 0;
 450
 451     for (DevicesMap::iterator iter = devices_.begin();
 452          iter != devices_.end(); ++iter) {
 453       if (iter->second->IsPaired() && iter->second->IsConnected())
 454         ++count;
 455     }
 456
 457     UMA_HISTOGRAM_COUNTS_100("Bluetooth.ConnectedDeviceCount", count);
 458   }
 459 }
 460
 461 void BluetoothAdapterChromeOS::InputPropertyChanged(
 462     const dbus::ObjectPath& object_path,
 463     const std::string& property_name) {
 464   BluetoothDeviceChromeOS* device_chromeos = GetDeviceWithPath(object_path);
 465   if (!device_chromeos)
 466     return;
 467
 468   BluetoothInputClient::Properties* properties =
 469       DBusThreadManager::Get()->GetBluetoothInputClient()->
 470           GetProperties(object_path);
 471
 472   // Properties structure can be removed, which triggers a change in the
 473   // BluetoothDevice::IsConnectable() property, as does a change in the
 474   // actual reconnect_mode property.
 475   if (!properties ||
 476       property_name == properties->reconnect_mode.name())
 477     NotifyDeviceChanged(device_chromeos);
 478 }
 479
 480 void BluetoothAdapterChromeOS::Released() {
 481   VLOG(1) << "Release";
 482   if (!IsPresent())
 483     return;
 484   DCHECK(agent_.get());
 485
 486   // Called after we unregister the pairing agent, e.g. when changing I/O
 487   // capabilities. Nothing much to be done right now.
 488 }
 489
 490 void BluetoothAdapterChromeOS::RequestPinCode(
 491     const dbus::ObjectPath& device_path,
 492     const PinCodeCallback& callback) {
 493   DCHECK(IsPresent());
 494   DCHECK(agent_.get());
 495   VLOG(1) << device_path.value() << ": RequestPinCode";
 496
 497   BluetoothPairingChromeOS* pairing = GetPairing(device_path);
 498   if (!pairing) {
 499     callback.Run(REJECTED, "");
 500     return;
 501   }
 502
 503   pairing->RequestPinCode(callback);
 504 }
 505
 506 void BluetoothAdapterChromeOS::DisplayPinCode(
 507     const dbus::ObjectPath& device_path,
 508     const std::string& pincode) {
 509   DCHECK(IsPresent());
 510   DCHECK(agent_.get());
 511   VLOG(1) << device_path.value() << ": DisplayPinCode: " << pincode;
 512
 513   BluetoothPairingChromeOS* pairing = GetPairing(device_path);
 514   if (!pairing)
 515     return;
 516
 517   pairing->DisplayPinCode(pincode);
 518 }
 519
 520 void BluetoothAdapterChromeOS::RequestPasskey(
 521     const dbus::ObjectPath& device_path,
 522     const PasskeyCallback& callback) {
 523   DCHECK(IsPresent());
 524   DCHECK(agent_.get());
 525   VLOG(1) << device_path.value() << ": RequestPasskey";
 526
 527   BluetoothPairingChromeOS* pairing = GetPairing(device_path);
 528   if (!pairing) {
 529     callback.Run(REJECTED, 0);
 530     return;
 531   }
 532
 533   pairing->RequestPasskey(callback);
 534 }
 535
 536 void BluetoothAdapterChromeOS::DisplayPasskey(
 537     const dbus::ObjectPath& device_path,
 538     uint32 passkey,
 539     uint16 entered) {
 540   DCHECK(IsPresent());
 541   DCHECK(agent_.get());
 542   VLOG(1) << device_path.value() << ": DisplayPasskey: " << passkey
 543           << " (" << entered << " entered)";
 544
 545   BluetoothPairingChromeOS* pairing = GetPairing(device_path);
 546   if (!pairing)
 547     return;
 548
 549   if (entered == 0)
 550     pairing->DisplayPasskey(passkey);
 551
 552   pairing->KeysEntered(entered);
 553 }
 554
 555 void BluetoothAdapterChromeOS::RequestConfirmation(
 556     const dbus::ObjectPath& device_path,
 557     uint32 passkey,
 558     const ConfirmationCallback& callback) {
 559   DCHECK(IsPresent());
 560   DCHECK(agent_.get());
 561   VLOG(1) << device_path.value() << ": RequestConfirmation: " << passkey;
 562
 563   BluetoothPairingChromeOS* pairing = GetPairing(device_path);
 564   if (!pairing) {
 565     callback.Run(REJECTED);
 566     return;
 567   }
 568
 569   pairing->RequestConfirmation(passkey, callback);
 570 }
 571
 572 void BluetoothAdapterChromeOS::RequestAuthorization(
 573     const dbus::ObjectPath& device_path,
 574     const ConfirmationCallback& callback) {
 575   DCHECK(IsPresent());
 576   DCHECK(agent_.get());
 577   VLOG(1) << device_path.value() << ": RequestAuthorization";
 578
 579   BluetoothPairingChromeOS* pairing = GetPairing(device_path);
 580   if (!pairing) {
 581     callback.Run(REJECTED);
 582     return;
 583   }
 584
 585   pairing->RequestAuthorization(callback);
 586 }
 587
 588 void BluetoothAdapterChromeOS::AuthorizeService(
 589     const dbus::ObjectPath& device_path,
 590     const std::string& uuid,
 591     const ConfirmationCallback& callback) {
 592   DCHECK(IsPresent());
 593   DCHECK(agent_.get());
 594   VLOG(1) << device_path.value() << ": AuthorizeService: " << uuid;
 595
 596   BluetoothDeviceChromeOS* device_chromeos = GetDeviceWithPath(device_path);
 597   if (!device_chromeos) {
 598     callback.Run(CANCELLED);
 599     return;
 600   }
 601
 602   // We always set paired devices to Trusted, so the only reason that this
 603   // method call would ever be called is in the case of a race condition where
 604   // our "Set('Trusted', true)" method call is still pending in the Bluetooth
 605   // daemon because it's busy handling the incoming connection.
 606   if (device_chromeos->IsPaired()) {
 607     callback.Run(SUCCESS);
 608     return;
 609   }
 610
 611   // TODO(keybuk): reject service authorizations when not paired, determine
 612   // whether this is acceptable long-term.
 613   LOG(WARNING) << "Rejecting service connection from unpaired device "
 614                << device_chromeos->GetAddress() << " for UUID " << uuid;
 615   callback.Run(REJECTED);
 616 }
 617
 618 void BluetoothAdapterChromeOS::Cancel() {
 619   DCHECK(IsPresent());
 620   DCHECK(agent_.get());
 621   VLOG(1) << "Cancel";
 622 }
 623
 624 void BluetoothAdapterChromeOS::OnRegisterAgent() {
 625   VLOG(1) << "Pairing agent registered, requesting to be made default";
 626
 627   DBusThreadManager::Get()->GetBluetoothAgentManagerClient()->
 628       RequestDefaultAgent(
 629           dbus::ObjectPath(kAgentPath),
 630           base::Bind(&BluetoothAdapterChromeOS::OnRequestDefaultAgent,
 631                      weak_ptr_factory_.GetWeakPtr()),
 632           base::Bind(&BluetoothAdapterChromeOS::OnRequestDefaultAgentError,
 633                      weak_ptr_factory_.GetWeakPtr()));
 634 }
 635
 636 void BluetoothAdapterChromeOS::OnRegisterAgentError(
 637     const std::string& error_name,
 638     const std::string& error_message) {
 639   // Our agent being already registered isn't an error.
 640   if (error_name == bluetooth_agent_manager::kErrorAlreadyExists)
 641     return;
 642
 643   LOG(WARNING) << ": Failed to register pairing agent: "
 644                << error_name << ": " << error_message;
 645 }
 646
 647 void BluetoothAdapterChromeOS::OnRequestDefaultAgent() {
 648   VLOG(1) << "Pairing agent now default";
 649 }
 650
 651 void BluetoothAdapterChromeOS::OnRequestDefaultAgentError(
 652     const std::string& error_name,
 653     const std::string& error_message) {
 654   LOG(WARNING) << ": Failed to make pairing agent default: "
 655                << error_name << ": " << error_message;
 656 }
 657
 658 void BluetoothAdapterChromeOS::OnRegisterAudioSink(
 659     const device::BluetoothAdapter::AcquiredCallback& callback,
 660     const device::BluetoothAudioSink::ErrorCallback& error_callback,
 661     scoped_refptr<BluetoothAudioSink> audio_sink) {
 662   if (!IsPresent()) {
 663     VLOG(1) << "Failed to register audio sink, adapter not present";
 664     error_callback.Run(BluetoothAudioSink::ERROR_INVALID_ADAPTER);
 665     return;
 666   }
 667   DCHECK(audio_sink.get());
 668   callback.Run(audio_sink);
 669 }
 670
 671 BluetoothDeviceChromeOS*
 672 BluetoothAdapterChromeOS::GetDeviceWithPath(
 673     const dbus::ObjectPath& object_path) {
 674   if (!IsPresent())
 675     return NULL;
 676
 677   for (DevicesMap::iterator iter = devices_.begin(); iter != devices_.end();
 678        ++iter) {
 679     BluetoothDeviceChromeOS* device_chromeos =
 680         static_cast<BluetoothDeviceChromeOS*>(iter->second);
 681     if (device_chromeos->object_path() == object_path)
 682       return device_chromeos;
 683   }
 684
 685   return NULL;
 686 }
 687
 688 BluetoothPairingChromeOS* BluetoothAdapterChromeOS::GetPairing(
 689     const dbus::ObjectPath& object_path) {
 690   DCHECK(IsPresent());
 691   BluetoothDeviceChromeOS* device_chromeos = GetDeviceWithPath(object_path);
 692   if (!device_chromeos) {
 693     LOG(WARNING) << "Pairing Agent request for unknown device: "
 694                  << object_path.value();
 695     return NULL;
 696   }
 697
 698   BluetoothPairingChromeOS* pairing = device_chromeos->GetPairing();
 699   if (pairing)
 700     return pairing;
 701
 702   // The device doesn't have its own pairing context, so this is an incoming
 703   // pairing request that should use our best default delegate (if we have one).
 704   BluetoothDevice::PairingDelegate* pairing_delegate = DefaultPairingDelegate();
 705   if (!pairing_delegate)
 706     return NULL;
 707
 708   return device_chromeos->BeginPairing(pairing_delegate);
 709 }
 710
 711 void BluetoothAdapterChromeOS::SetAdapter(const dbus::ObjectPath& object_path) {
 712   DCHECK(!IsPresent());
 713   DCHECK(!dbus_is_shutdown_);
 714   object_path_ = object_path;
 715
 716   VLOG(1) << object_path_.value() << ": using adapter.";
 717
 718   VLOG(1) << "Registering pairing agent";
 719   DBusThreadManager::Get()->GetBluetoothAgentManagerClient()->
 720       RegisterAgent(
 721           dbus::ObjectPath(kAgentPath),
 722           bluetooth_agent_manager::kKeyboardDisplayCapability,
 723           base::Bind(&BluetoothAdapterChromeOS::OnRegisterAgent,
 724                      weak_ptr_factory_.GetWeakPtr()),
 725           base::Bind(&BluetoothAdapterChromeOS::OnRegisterAgentError,
 726                      weak_ptr_factory_.GetWeakPtr()));
 727
 728   SetDefaultAdapterName();
 729
 730   BluetoothAdapterClient::Properties* properties =
 731       DBusThreadManager::Get()->GetBluetoothAdapterClient()->
 732           GetProperties(object_path_);
 733
 734   PresentChanged(true);
 735
 736   if (properties->powered.value())
 737     PoweredChanged(true);
 738   if (properties->discoverable.value())
 739     DiscoverableChanged(true);
 740   if (properties->discovering.value())
 741     DiscoveringChanged(true);
 742
 743   std::vector<dbus::ObjectPath> device_paths =
 744       DBusThreadManager::Get()->GetBluetoothDeviceClient()->
 745           GetDevicesForAdapter(object_path_);
 746
 747   for (std::vector<dbus::ObjectPath>::iterator iter = device_paths.begin();
 748        iter != device_paths.end(); ++iter) {
 749     DeviceAdded(*iter);
 750   }
 751 }
 752
 753 void BluetoothAdapterChromeOS::SetDefaultAdapterName() {
 754   DCHECK(IsPresent());
 755   std::string board = base::SysInfo::GetLsbReleaseBoard();
 756   std::string alias;
 757   if (board.substr(0, 6) == "stumpy") {
 758     alias = "Chromebox";
 759   } else if (board.substr(0, 4) == "link") {
 760     alias = "Chromebook Pixel";
 761   } else {
 762     alias = "Chromebook";
 763   }
 764
 765   SetName(alias, base::Bind(&base::DoNothing), base::Bind(&base::DoNothing));
 766 }
 767
 768 void BluetoothAdapterChromeOS::RemoveAdapter() {
 769   DCHECK(IsPresent());
 770   VLOG(1) << object_path_.value() << ": adapter removed.";
 771
 772   BluetoothAdapterClient::Properties* properties =
 773       DBusThreadManager::Get()->GetBluetoothAdapterClient()->
 774           GetProperties(object_path_);
 775
 776   object_path_ = dbus::ObjectPath("");
 777
 778   if (properties->powered.value())
 779     PoweredChanged(false);
 780   if (properties->discoverable.value())
 781     DiscoverableChanged(false);
 782   if (properties->discovering.value())
 783     DiscoveringChanged(false);
 784
 785   // Copy the devices list here and clear the original so that when we
 786   // send DeviceRemoved(), GetDevices() returns no devices.
 787   DevicesMap devices = devices_;
 788   devices_.clear();
 789
 790   for (DevicesMap::iterator iter = devices.begin();
 791        iter != devices.end(); ++iter) {
 792     FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_,
 793                       DeviceRemoved(this, iter->second));
 794     delete iter->second;
 795   }
 796
 797   PresentChanged(false);
 798 }
 799
 800 void BluetoothAdapterChromeOS::PoweredChanged(bool powered) {
 801   FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_,
 802                     AdapterPoweredChanged(this, powered));
 803 }
 804
 805 void BluetoothAdapterChromeOS::DiscoverableChanged(bool discoverable) {
 806   FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_,
 807                     AdapterDiscoverableChanged(this, discoverable));
 808 }
 809
 810 void BluetoothAdapterChromeOS::DiscoveringChanged(
 811     bool discovering) {
 812   // If the adapter stopped discovery due to a reason other than a request by
 813   // us, reset the count to 0.
 814   VLOG(1) << "Discovering changed: " << discovering;
 815   if (!discovering && !discovery_request_pending_
 816       && num_discovery_sessions_ > 0) {
 817     VLOG(1) << "Marking sessions as inactive.";
 818     num_discovery_sessions_ = 0;
 819     MarkDiscoverySessionsAsInactive();
 820   }
 821   FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_,
 822                     AdapterDiscoveringChanged(this, discovering));
 823 }
 824
 825 void BluetoothAdapterChromeOS::PresentChanged(bool present) {
 826   FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_,
 827                     AdapterPresentChanged(this, present));
 828 }
 829
 830 void BluetoothAdapterChromeOS::NotifyDeviceChanged(
 831     BluetoothDeviceChromeOS* device) {
 832   DCHECK(device->adapter_ == this);
 833
 834   FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_,
 835                     DeviceChanged(this, device));
 836 }
 837
 838 void BluetoothAdapterChromeOS::NotifyGattServiceAdded(
 839     BluetoothRemoteGattServiceChromeOS* service) {
 840   DCHECK_EQ(service->GetAdapter(), this);
 841   DCHECK_EQ(
 842       static_cast<BluetoothDeviceChromeOS*>(service->GetDevice())->adapter_,
 843       this);
 844
 845   FOR_EACH_OBSERVER(BluetoothAdapter::Observer,
 846                     observers_,
 847                     GattServiceAdded(this, service->GetDevice(), service));
 848 }
 849
 850 void BluetoothAdapterChromeOS::NotifyGattServiceRemoved(
 851     BluetoothRemoteGattServiceChromeOS* service) {
 852   DCHECK_EQ(service->GetAdapter(), this);
 853   DCHECK_EQ(
 854       static_cast<BluetoothDeviceChromeOS*>(service->GetDevice())->adapter_,
 855       this);
 856
 857   FOR_EACH_OBSERVER(BluetoothAdapter::Observer,
 858                     observers_,
 859                     GattServiceRemoved(this, service->GetDevice(), service));
 860 }
 861
 862 void BluetoothAdapterChromeOS::NotifyGattServiceChanged(
 863     BluetoothRemoteGattServiceChromeOS* service) {
 864   DCHECK_EQ(service->GetAdapter(), this);
 865
 866   FOR_EACH_OBSERVER(BluetoothAdapter::Observer,
 867                     observers_,
 868                     GattServiceChanged(this, service));
 869 }
 870
 871 void BluetoothAdapterChromeOS::NotifyGattDiscoveryComplete(
 872     BluetoothRemoteGattServiceChromeOS* service) {
 873   DCHECK_EQ(service->GetAdapter(), this);
 874
 875   FOR_EACH_OBSERVER(BluetoothAdapter::Observer,
 876                     observers_,
 877                     GattDiscoveryCompleteForService(this, service));
 878 }
 879
 880 void BluetoothAdapterChromeOS::NotifyGattCharacteristicAdded(
 881     BluetoothRemoteGattCharacteristicChromeOS* characteristic) {
 882   DCHECK_EQ(static_cast<BluetoothRemoteGattServiceChromeOS*>(
 883                 characteristic->GetService())->GetAdapter(),
 884             this);
 885
 886   FOR_EACH_OBSERVER(BluetoothAdapter::Observer,
 887                     observers_,
 888                     GattCharacteristicAdded(this, characteristic));
 889 }
 890
 891 void BluetoothAdapterChromeOS::NotifyGattCharacteristicRemoved(
 892     BluetoothRemoteGattCharacteristicChromeOS* characteristic) {
 893   DCHECK_EQ(static_cast<BluetoothRemoteGattServiceChromeOS*>(
 894                 characteristic->GetService())->GetAdapter(),
 895             this);
 896
 897   FOR_EACH_OBSERVER(BluetoothAdapter::Observer,
 898                     observers_,
 899                     GattCharacteristicRemoved(this, characteristic));
 900 }
 901
 902 void BluetoothAdapterChromeOS::NotifyGattDescriptorAdded(
 903     BluetoothRemoteGattDescriptorChromeOS* descriptor) {
 904   DCHECK_EQ(static_cast<BluetoothRemoteGattServiceChromeOS*>(
 905                 descriptor->GetCharacteristic()->GetService())->GetAdapter(),
 906             this);
 907
 908   FOR_EACH_OBSERVER(BluetoothAdapter::Observer,
 909                     observers_,
 910                     GattDescriptorAdded(this, descriptor));
 911 }
 912
 913 void BluetoothAdapterChromeOS::NotifyGattDescriptorRemoved(
 914     BluetoothRemoteGattDescriptorChromeOS* descriptor) {
 915   DCHECK_EQ(static_cast<BluetoothRemoteGattServiceChromeOS*>(
 916                 descriptor->GetCharacteristic()->GetService())->GetAdapter(),
 917             this);
 918
 919   FOR_EACH_OBSERVER(BluetoothAdapter::Observer,
 920                     observers_,
 921                     GattDescriptorRemoved(this, descriptor));
 922 }
 923
 924 void BluetoothAdapterChromeOS::NotifyGattCharacteristicValueChanged(
 925     BluetoothRemoteGattCharacteristicChromeOS* characteristic,
 926     const std::vector<uint8>& value) {
 927   DCHECK_EQ(static_cast<BluetoothRemoteGattServiceChromeOS*>(
 928                 characteristic->GetService())->GetAdapter(),
 929             this);
 930
 931   FOR_EACH_OBSERVER(
 932       BluetoothAdapter::Observer,
 933       observers_,
 934       GattCharacteristicValueChanged(this, characteristic, value));
 935 }
 936
 937 void BluetoothAdapterChromeOS::NotifyGattDescriptorValueChanged(
 938     BluetoothRemoteGattDescriptorChromeOS* descriptor,
 939     const std::vector<uint8>& value) {
 940   DCHECK_EQ(static_cast<BluetoothRemoteGattServiceChromeOS*>(
 941                 descriptor->GetCharacteristic()->GetService())->GetAdapter(),
 942             this);
 943
 944   FOR_EACH_OBSERVER(BluetoothAdapter::Observer,
 945                     observers_,
 946                     GattDescriptorValueChanged(this, descriptor, value));
 947 }
 948
 949 void BluetoothAdapterChromeOS::UseProfile(
 950     const BluetoothUUID& uuid,
 951     const dbus::ObjectPath& device_path,
 952     const BluetoothProfileManagerClient::Options& options,
 953     BluetoothProfileServiceProvider::Delegate* delegate,
 954     const ProfileRegisteredCallback& success_callback,
 955     const ErrorCompletionCallback& error_callback) {
 956   DCHECK(delegate);
 957
 958   if (!IsPresent()) {
 959     VLOG(2) << "Adapter not present, erroring out";
 960     error_callback.Run("Adapter not present");
 961     return;
 962   }
 963
 964   if (profiles_.find(uuid) != profiles_.end()) {
 965     // TODO(jamuraa) check that the options are the same and error when they are
 966     // not.
 967     SetProfileDelegate(uuid, device_path, delegate, success_callback,
 968                        error_callback);
 969     return;
 970   }
 971
 972   if (profile_queues_.find(uuid) == profile_queues_.end()) {
 973     BluetoothAdapterProfileChromeOS::Register(
 974         uuid, options,
 975         base::Bind(&BluetoothAdapterChromeOS::OnRegisterProfile, this, uuid),
 976         base::Bind(&BluetoothAdapterChromeOS::OnRegisterProfileError, this,
 977                    uuid));
 978
 979     profile_queues_[uuid] = new std::vector<RegisterProfileCompletionPair>();
 980   }
 981
 982   profile_queues_[uuid]->push_back(std::make_pair(
 983       base::Bind(&BluetoothAdapterChromeOS::SetProfileDelegate, this, uuid,
 984                  device_path, delegate, success_callback, error_callback),
 985       error_callback));
 986 }
 987
 988 void BluetoothAdapterChromeOS::ReleaseProfile(
 989     const dbus::ObjectPath& device_path,
 990     BluetoothAdapterProfileChromeOS* profile) {
 991   VLOG(2) << "Releasing Profile: " << profile->uuid().canonical_value()
 992           << " from " << device_path.value();
 993   profile->RemoveDelegate(
 994       device_path, base::Bind(&BluetoothAdapterChromeOS::RemoveProfile,
 995                               weak_ptr_factory_.GetWeakPtr(), profile->uuid()));
 996 }
 997
 998 void BluetoothAdapterChromeOS::RemoveProfile(const BluetoothUUID& uuid) {
 999   VLOG(2) << "Remove Profile: " << uuid.canonical_value();
1000
1001   if (profiles_.find(uuid) != profiles_.end()) {
1002     delete profiles_[uuid];
1003     profiles_.erase(uuid);
1004   }
1005 }
1006
1007 void BluetoothAdapterChromeOS::OnRegisterProfile(
1008     const BluetoothUUID& uuid,
1009     scoped_ptr<BluetoothAdapterProfileChromeOS> profile) {
1010   profiles_[uuid] = profile.release();
1011
1012   if (profile_queues_.find(uuid) == profile_queues_.end())
1013     return;
1014
1015   for (auto& it : *profile_queues_[uuid])
1016     it.first.Run();
1017   delete profile_queues_[uuid];
1018   profile_queues_.erase(uuid);
1019 }
1020
1021 void BluetoothAdapterChromeOS::SetProfileDelegate(
1022     const BluetoothUUID& uuid,
1023     const dbus::ObjectPath& device_path,
1024     BluetoothProfileServiceProvider::Delegate* delegate,
1025     const ProfileRegisteredCallback& success_callback,
1026     const ErrorCompletionCallback& error_callback) {
1027   if (profiles_.find(uuid) == profiles_.end()) {
1028     error_callback.Run("Cannot find profile!");
1029     return;
1030   }
1031
1032   if (profiles_[uuid]->SetDelegate(device_path, delegate)) {
1033     success_callback.Run(profiles_[uuid]);
1034     return;
1035   }
1036   // Already set
1037   error_callback.Run(bluetooth_agent_manager::kErrorAlreadyExists);
1038 }
1039
1040 void BluetoothAdapterChromeOS::OnRegisterProfileError(
1041     const BluetoothUUID& uuid,
1042     const std::string& error_name,
1043     const std::string& error_message) {
1044   VLOG(2) << object_path_.value() << ": Failed to register profile: "
1045           << error_name << ": " << error_message;
1046   if (profile_queues_.find(uuid) == profile_queues_.end())
1047     return;
1048
1049   for (auto& it : *profile_queues_[uuid])
1050     it.second.Run(error_message);
1051
1052   delete profile_queues_[uuid];
1053   profile_queues_.erase(uuid);
1054 }
1055
1056 void BluetoothAdapterChromeOS::OnSetDiscoverable(
1057     const base::Closure& callback,
1058     const ErrorCallback& error_callback,
1059     bool success) {
1060   if (!IsPresent()) {
1061     error_callback.Run();
1062     return;
1063   }
1064
1065   // Set the discoverable_timeout property to zero so the adapter remains
1066   // discoverable forever.
1067   DBusThreadManager::Get()->GetBluetoothAdapterClient()->
1068       GetProperties(object_path_)->discoverable_timeout.Set(
1069           0,
1070           base::Bind(&BluetoothAdapterChromeOS::OnPropertyChangeCompleted,
1071                      weak_ptr_factory_.GetWeakPtr(),
1072                      callback,
1073                      error_callback));
1074 }
1075
1076 void BluetoothAdapterChromeOS::OnPropertyChangeCompleted(
1077     const base::Closure& callback,
1078     const ErrorCallback& error_callback,
1079     bool success) {
1080   if (IsPresent() && success)
1081     callback.Run();
1082   else
1083     error_callback.Run();
1084 }
1085
1086 void BluetoothAdapterChromeOS::AddDiscoverySession(
1087     BluetoothDiscoveryFilter* discovery_filter,
1088     const base::Closure& callback,
1089     const ErrorCallback& error_callback) {
1090   if (!IsPresent()) {
1091     error_callback.Run();
1092     return;
1093   }
1094   VLOG(1) << __func__;
1095   if (discovery_request_pending_) {
1096     // The pending request is either to stop a previous session or to start a
1097     // new one. Either way, queue this one.
1098     DCHECK(num_discovery_sessions_ == 1 || num_discovery_sessions_ == 0);
1099     VLOG(1) << "Pending request to start/stop device discovery. Queueing "
1100             << "request to start a new discovery session.";
1101     discovery_request_queue_.push(
1102         std::make_tuple(discovery_filter, callback, error_callback));
1103     return;
1104   }
1105
1106   // The adapter is already discovering.
1107   if (num_discovery_sessions_ > 0) {
1108     DCHECK(IsDiscovering());
1109     DCHECK(!discovery_request_pending_);
1110     num_discovery_sessions_++;
1111     SetDiscoveryFilter(BluetoothDiscoveryFilter::Merge(
1112                            GetMergedDiscoveryFilter().get(), discovery_filter),
1113                        callback, error_callback);
1114     return;
1115   }
1116
1117   // There are no active discovery sessions.
1118   DCHECK_EQ(num_discovery_sessions_, 0);
1119
1120   if (discovery_filter) {
1121     discovery_request_pending_ = true;
1122
1123     scoped_ptr<BluetoothDiscoveryFilter> df(new BluetoothDiscoveryFilter(
1124         BluetoothDiscoveryFilter::Transport::TRANSPORT_DUAL));
1125     df->CopyFrom(*discovery_filter);
1126     SetDiscoveryFilter(
1127         df.Pass(),
1128         base::Bind(&BluetoothAdapterChromeOS::OnPreSetDiscoveryFilter,
1129                    weak_ptr_factory_.GetWeakPtr(), callback, error_callback),
1130         base::Bind(&BluetoothAdapterChromeOS::OnPreSetDiscoveryFilterError,
1131                    weak_ptr_factory_.GetWeakPtr(), callback, error_callback));
1132     return;
1133   } else
1134     current_filter_.reset();
1135
1136   // This is the first request to start device discovery.
1137   discovery_request_pending_ = true;
1138   DBusThreadManager::Get()->GetBluetoothAdapterClient()->StartDiscovery(
1139       object_path_,
1140       base::Bind(&BluetoothAdapterChromeOS::OnStartDiscovery,
1141                  weak_ptr_factory_.GetWeakPtr(), callback, error_callback),
1142       base::Bind(&BluetoothAdapterChromeOS::OnStartDiscoveryError,
1143                  weak_ptr_factory_.GetWeakPtr(), callback, error_callback));
1144 }
1145
1146 void BluetoothAdapterChromeOS::RemoveDiscoverySession(
1147     BluetoothDiscoveryFilter* discovery_filter,
1148     const base::Closure& callback,
1149     const ErrorCallback& error_callback) {
1150   if (!IsPresent()) {
1151     error_callback.Run();
1152     return;
1153   }
1154
1155   VLOG(1) << __func__;
1156   // There are active sessions other than the one currently being removed.
1157   if (num_discovery_sessions_ > 1) {
1158     DCHECK(IsDiscovering());
1159     DCHECK(!discovery_request_pending_);
1160     num_discovery_sessions_--;
1161
1162     SetDiscoveryFilter(GetMergedDiscoveryFilterMasked(discovery_filter),
1163                        callback, error_callback);
1164     return;
1165   }
1166
1167   // If there is a pending request to BlueZ, then queue this request.
1168   if (discovery_request_pending_) {
1169     VLOG(1) << "Pending request to start/stop device discovery. Queueing "
1170             << "request to stop discovery session.";
1171     error_callback.Run();
1172     return;
1173   }
1174
1175   // There are no active sessions. Return error.
1176   if (num_discovery_sessions_ == 0) {
1177     // TODO(armansito): This should never happen once we have the
1178     // DiscoverySession API. Replace this case with an assert once it's
1179     // the deprecated methods have been removed. (See crbug.com/3445008).
1180     VLOG(1) << "No active discovery sessions. Returning error.";
1181     error_callback.Run();
1182     return;
1183   }
1184
1185   // There is exactly one active discovery session. Request BlueZ to stop
1186   // discovery.
1187   DCHECK_EQ(num_discovery_sessions_, 1);
1188   discovery_request_pending_ = true;
1189   DBusThreadManager::Get()->GetBluetoothAdapterClient()->
1190       StopDiscovery(
1191           object_path_,
1192           base::Bind(&BluetoothAdapterChromeOS::OnStopDiscovery,
1193                      weak_ptr_factory_.GetWeakPtr(),
1194                      callback),
1195           base::Bind(&BluetoothAdapterChromeOS::OnStopDiscoveryError,
1196                      weak_ptr_factory_.GetWeakPtr(),
1197                      error_callback));
1198 }
1199
1200 void BluetoothAdapterChromeOS::SetDiscoveryFilter(
1201     scoped_ptr<BluetoothDiscoveryFilter> discovery_filter,
1202     const base::Closure& callback,
1203     const ErrorCallback& error_callback) {
1204   if (!IsPresent()) {
1205     error_callback.Run();
1206     return;
1207   }
1208
1209   // If old and new filter are equal (null) then don't make request, just call
1210   // succes callback
1211   if (!current_filter_ && !discovery_filter.get()) {
1212     callback.Run();
1213     return;
1214   }
1215
1216   // If old and new filter are not null and equal then don't make request, just
1217   // call succes callback
1218   if (current_filter_ && discovery_filter &&
1219       current_filter_->Equals(*discovery_filter)) {
1220     callback.Run();
1221     return;
1222   }
1223
1224   current_filter_.reset(discovery_filter.release());
1225
1226   chromeos::BluetoothAdapterClient::DiscoveryFilter dbus_discovery_filter;
1227
1228   if (current_filter_.get()) {
1229     uint16_t pathloss;
1230     int16_t rssi;
1231     uint8_t transport;
1232     std::set<device::BluetoothUUID> uuids;
1233
1234     if (current_filter_->GetPathloss(&pathloss))
1235       dbus_discovery_filter.pathloss.reset(new uint16_t(pathloss));
1236
1237     if (current_filter_->GetRSSI(&rssi))
1238       dbus_discovery_filter.rssi.reset(new int16_t(rssi));
1239
1240     transport = current_filter_->GetTransport();
1241     if (transport == BluetoothDiscoveryFilter::Transport::TRANSPORT_LE) {
1242       dbus_discovery_filter.transport.reset(new std::string("le"));
1243     } else if (transport ==
1244                BluetoothDiscoveryFilter::Transport::TRANSPORT_CLASSIC) {
1245       dbus_discovery_filter.transport.reset(new std::string("bredr"));
1246     } else if (transport ==
1247                BluetoothDiscoveryFilter::Transport::TRANSPORT_DUAL) {
1248       dbus_discovery_filter.transport.reset(new std::string("auto"));
1249     }
1250
1251     current_filter_->GetUUIDs(uuids);
1252     if (uuids.size()) {
1253       dbus_discovery_filter.uuids =
1254           scoped_ptr<std::vector<std::string>>(new std::vector<std::string>);
1255
1256       for (const auto& it : uuids)
1257         dbus_discovery_filter.uuids.get()->push_back(it.value());
1258     }
1259   }
1260
1261   DBusThreadManager::Get()->GetBluetoothAdapterClient()->SetDiscoveryFilter(
1262       object_path_, dbus_discovery_filter,
1263       base::Bind(&BluetoothAdapterChromeOS::OnSetDiscoveryFilter,
1264                  weak_ptr_factory_.GetWeakPtr(), callback, error_callback),
1265       base::Bind(&BluetoothAdapterChromeOS::OnSetDiscoveryFilterError,
1266                  weak_ptr_factory_.GetWeakPtr(), callback, error_callback));
1267 }
1268
1269 void BluetoothAdapterChromeOS::OnStartDiscovery(
1270     const base::Closure& callback,
1271     const ErrorCallback& error_callback) {
1272   // Report success on the original request and increment the count.
1273   VLOG(1) << __func__;
1274   DCHECK(discovery_request_pending_);
1275   DCHECK_EQ(num_discovery_sessions_, 0);
1276   discovery_request_pending_ = false;
1277   num_discovery_sessions_++;
1278   if (IsPresent())
1279     callback.Run();
1280   else
1281     error_callback.Run();
1282
1283   // Try to add a new discovery session for each queued request.
1284   ProcessQueuedDiscoveryRequests();
1285 }
1286
1287 void BluetoothAdapterChromeOS::OnStartDiscoveryError(
1288     const base::Closure& callback,
1289     const ErrorCallback& error_callback,
1290     const std::string& error_name,
1291     const std::string& error_message) {
1292   LOG(WARNING) << object_path_.value() << ": Failed to start discovery: "
1293                << error_name << ": " << error_message;
1294
1295   // Failed to start discovery. This can only happen if the count is at 0.
1296   DCHECK_EQ(num_discovery_sessions_, 0);
1297   DCHECK(discovery_request_pending_);
1298   discovery_request_pending_ = false;
1299
1300   // Discovery request may fail if discovery was previously initiated by Chrome,
1301   // but the session were invalidated due to the discovery state unexpectedly
1302   // changing to false and then back to true. In this case, report success.
1303   if (IsPresent() && error_name == bluetooth_device::kErrorInProgress &&
1304       IsDiscovering()) {
1305     VLOG(1) << "Discovery previously initiated. Reporting success.";
1306     num_discovery_sessions_++;
1307     callback.Run();
1308   } else {
1309     error_callback.Run();
1310   }
1311
1312   // Try to add a new discovery session for each queued request.
1313   ProcessQueuedDiscoveryRequests();
1314 }
1315
1316 void BluetoothAdapterChromeOS::OnStopDiscovery(const base::Closure& callback) {
1317   // Report success on the original request and decrement the count.
1318   VLOG(1) << __func__;
1319   DCHECK(discovery_request_pending_);
1320   DCHECK_EQ(num_discovery_sessions_, 1);
1321   discovery_request_pending_ = false;
1322   num_discovery_sessions_--;
1323   callback.Run();
1324
1325   current_filter_.reset();
1326
1327   // Try to add a new discovery session for each queued request.
1328   ProcessQueuedDiscoveryRequests();
1329 }
1330
1331 void BluetoothAdapterChromeOS::OnStopDiscoveryError(
1332     const ErrorCallback& error_callback,
1333     const std::string& error_name,
1334     const std::string& error_message) {
1335   LOG(WARNING) << object_path_.value() << ": Failed to stop discovery: "
1336                << error_name << ": " << error_message;
1337
1338   // Failed to stop discovery. This can only happen if the count is at 1.
1339   DCHECK(discovery_request_pending_);
1340   DCHECK_EQ(num_discovery_sessions_, 1);
1341   discovery_request_pending_ = false;
1342   error_callback.Run();
1343
1344   // Try to add a new discovery session for each queued request.
1345   ProcessQueuedDiscoveryRequests();
1346 }
1347
1348 void BluetoothAdapterChromeOS::OnPreSetDiscoveryFilter(
1349     const base::Closure& callback,
1350     const ErrorCallback& error_callback) {
1351   // This is the first request to start device discovery.
1352   DCHECK(discovery_request_pending_);
1353   DCHECK_EQ(num_discovery_sessions_, 0);
1354
1355   DBusThreadManager::Get()->GetBluetoothAdapterClient()->StartDiscovery(
1356       object_path_,
1357       base::Bind(&BluetoothAdapterChromeOS::OnStartDiscovery,
1358                  weak_ptr_factory_.GetWeakPtr(), callback, error_callback),
1359       base::Bind(&BluetoothAdapterChromeOS::OnStartDiscoveryError,
1360                  weak_ptr_factory_.GetWeakPtr(), callback, error_callback));
1361 }
1362
1363 void BluetoothAdapterChromeOS::OnPreSetDiscoveryFilterError(
1364     const base::Closure& callback,
1365     const ErrorCallback& error_callback) {
1366   LOG(WARNING) << object_path_.value()
1367                << ": Failed to pre set discovery filter.";
1368
1369   // Failed to start discovery. This can only happen if the count is at 0.
1370   DCHECK_EQ(num_discovery_sessions_, 0);
1371   DCHECK(discovery_request_pending_);
1372   discovery_request_pending_ = false;
1373
1374   error_callback.Run();
1375
1376   // Try to add a new discovery session for each queued request.
1377   ProcessQueuedDiscoveryRequests();
1378 }
1379
1380 void BluetoothAdapterChromeOS::OnSetDiscoveryFilter(
1381     const base::Closure& callback,
1382     const ErrorCallback& error_callback) {
1383   // Report success on the original request and increment the count.
1384   VLOG(1) << __func__;
1385   if (IsPresent())
1386     callback.Run();
1387   else
1388     error_callback.Run();
1389 }
1390
1391 void BluetoothAdapterChromeOS::OnSetDiscoveryFilterError(
1392     const base::Closure& callback,
1393     const ErrorCallback& error_callback,
1394     const std::string& error_name,
1395     const std::string& error_message) {
1396   LOG(WARNING) << object_path_.value()
1397                << ": Failed to set discovery filter: " << error_name << ": "
1398                << error_message;
1399
1400   error_callback.Run();
1401
1402   // Try to add a new discovery session for each queued request.
1403   ProcessQueuedDiscoveryRequests();
1404 }
1405
1406 void BluetoothAdapterChromeOS::ProcessQueuedDiscoveryRequests() {
1407   while (!discovery_request_queue_.empty()) {
1408     VLOG(1) << "Process queued discovery request.";
1409     DiscoveryParamTuple params = discovery_request_queue_.front();
1410     discovery_request_queue_.pop();
1411     AddDiscoverySession(std::get<0>(params), std::get<1>(params),
1412                         std::get<2>(params));
1413
1414     // If the queued request resulted in a pending call, then let it
1415     // asynchonously process the remaining queued requests once the pending
1416     // call returns.
1417     if (discovery_request_pending_)
1418       return;
1419   }
1420 }
1421
1422 }  // namespace chromeos