src/platform/Linux/bluez/BluezAdvertisement.cpp - third_party/github/project-chip/connectedhomeip - Git at Google

 /*
  *
  *    Copyright (c) 2020-2023 Project CHIP Authors
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");
  *    you may not use this file except in compliance with the License.
  *    You may obtain a copy of the License at
  *
  *        http://www.apache.org/licenses/LICENSE-2.0
  *
  *    Unless required by applicable law or agreed to in writing, software
  *    distributed under the License is distributed on an "AS IS" BASIS,
  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  *    See the License for the specific language governing permissions and
  *    limitations under the License.
  */

 #include "BluezAdvertisement.h"

 #include <memory>
 #include <unistd.h>

 #include <gio/gio.h>
 #include <glib-object.h>
 #include <glib.h>

 #include <lib/support/CodeUtils.h>
 #include <lib/support/logging/CHIPLogging.h>
 #include <platform/ConfigurationManager.h>
 #include <platform/GLibTypeDeleter.h>
 #include <platform/Linux/dbus/bluez/DbusBluez.h>
 #include <platform/PlatformManager.h>

 #include "BluezEndpoint.h"
 #include "Types.h"

 namespace chip {
 namespace DeviceLayer {
 namespace Internal {

 BluezLEAdvertisement1 * BluezAdvertisement::CreateLEAdvertisement()
 {
     BluezLEAdvertisement1 * adv;
     BluezObjectSkeleton * object;
     GVariant * serviceUUID;
     GVariantBuilder serviceUUIDsBuilder;

     ChipLogDetail(DeviceLayer, "Create BLE adv object at %s", mpAdvPath);
     object = bluez_object_skeleton_new(mpAdvPath);

     adv = bluez_leadvertisement1_skeleton_new();

     g_variant_builder_init(&serviceUUIDsBuilder, G_VARIANT_TYPE("as"));
     g_variant_builder_add(&serviceUUIDsBuilder, "s", mpAdvUUID);

     serviceUUID = g_variant_builder_end(&serviceUUIDsBuilder);

     bluez_leadvertisement1_set_type_(adv, "peripheral");
     bluez_leadvertisement1_set_service_uuids(adv, serviceUUID);
     // empty manufacturer data
     // empty solicit UUIDs
     // empty data

     // Setting "Discoverable" to False on the adapter and to True on the advertisement convinces
     // Bluez to set "BR/EDR Not Supported" flag. Bluez doesn't provide API to do that explicitly
     // and the flag is necessary to force using LE transport.
     bluez_leadvertisement1_set_discoverable(adv, TRUE);
     bluez_leadvertisement1_set_discoverable_timeout(adv, 0 /* infinite */);

     // empty includes
     bluez_leadvertisement1_set_local_name(adv, mAdvName);
     bluez_leadvertisement1_set_appearance(adv, 0xffff /* no appearance */);
     // empty duration
     // empty timeout
     // empty secondary channel for now

     bluez_object_skeleton_set_leadvertisement1(object, adv);
     g_signal_connect(adv, "handle-release",
                      G_CALLBACK(+[](BluezLEAdvertisement1 * aAdv, GDBusMethodInvocation * aInv, BluezAdvertisement * self) {
                          return self->BluezLEAdvertisement1Release(aAdv, aInv);
                      }),
                      this);

     g_dbus_object_manager_server_export(mpRoot, G_DBUS_OBJECT_SKELETON(object));
     g_object_unref(object);

     return adv;
 }

 gboolean BluezAdvertisement::BluezLEAdvertisement1Release(BluezLEAdvertisement1 * aAdv, GDBusMethodInvocation * aInvocation)
 {
     ChipLogDetail(DeviceLayer, "Release BLE adv object in %s", __func__);
     g_dbus_object_manager_server_unexport(mpRoot, mpAdvPath);
     g_object_unref(mpAdv);
     mpAdv          = nullptr;
     mIsAdvertising = false;
     return TRUE;
 }

 CHIP_ERROR BluezAdvertisement::InitImpl()
 {
     // When creating D-Bus proxy object, the thread default context must be initialized. Otherwise,
     // all D-Bus signals will be delivered to the GLib global default main context.
     VerifyOrDie(g_main_context_get_thread_default() != nullptr);

     mpAdv = CreateLEAdvertisement();
     return CHIP_NO_ERROR;
 }

 CHIP_ERROR BluezAdvertisement::Init(const BluezEndpoint & aEndpoint, const char * aAdvUUID, const char * aAdvName)
 {
     GAutoPtr<char> rootPath;
     CHIP_ERROR err;

     VerifyOrExit(mpAdv == nullptr, err = CHIP_ERROR_INCORRECT_STATE;
                  ChipLogError(DeviceLayer, "FAIL: BLE advertisement already initialized in %s", __func__));

     mpRoot    = reinterpret_cast<GDBusObjectManagerServer *>(g_object_ref(aEndpoint.GetGattApplicationObjectManager()));
     mpAdapter = reinterpret_cast<BluezAdapter1 *>(g_object_ref(aEndpoint.GetAdapter()));

     g_object_get(G_OBJECT(mpRoot), "object-path", &MakeUniquePointerReceiver(rootPath).Get(), nullptr);
     mpAdvPath = g_strdup_printf("%s/advertising", rootPath.get());
     mpAdvUUID = g_strdup(aAdvUUID);

     if (aAdvName != nullptr)
     {
         g_snprintf(mAdvName, sizeof(mAdvName), "%s", aAdvName);
     }
     else
     {
         // Advertising name corresponding to the PID, for debug purposes.
         g_snprintf(mAdvName, sizeof(mAdvName), "%s%04x", CHIP_DEVICE_CONFIG_BLE_DEVICE_NAME_PREFIX, getpid() & 0xffff);
     }

     err = PlatformMgrImpl().GLibMatterContextInvokeSync(
         +[](BluezAdvertisement * self) { return self->InitImpl(); }, this);
     VerifyOrReturnError(err == CHIP_NO_ERROR, CHIP_ERROR_INCORRECT_STATE,
                         ChipLogError(Ble, "Failed to schedule BLE advertisement Init() on CHIPoBluez thread"));

     mIsInitialized = true;

 exit:
     return err;
 }

 CHIP_ERROR BluezAdvertisement::SetIntervals(AdvertisingIntervals aAdvIntervals)
 {
     VerifyOrReturnError(mpAdv != nullptr, CHIP_ERROR_UNINITIALIZED);
     // If the advertisement is already running, BlueZ will update the intervals
     // automatically. There is no need to stop and restart the advertisement.
     bluez_leadvertisement1_set_min_interval(mpAdv, aAdvIntervals.first * 0.625);
     bluez_leadvertisement1_set_max_interval(mpAdv, aAdvIntervals.second * 0.625);
     return CHIP_NO_ERROR;
 }

 CHIP_ERROR BluezAdvertisement::SetupServiceData(ServiceDataFlags aFlags)
 {
     VerifyOrReturnError(mpAdv != nullptr, CHIP_ERROR_UNINITIALIZED);

     Ble::ChipBLEDeviceIdentificationInfo deviceInfo;
     ReturnErrorOnFailure(ConfigurationMgr().GetBLEDeviceIdentificationInfo(deviceInfo));

 #if CHIP_ENABLE_ADDITIONAL_DATA_ADVERTISING
     deviceInfo.SetAdditionalDataFlag(true);
 #endif

 #if CHIP_DEVICE_CONFIG_BLE_EXT_ADVERTISING
     if (aFlags & kServiceDataExtendedAnnouncement)
     {
         deviceInfo.SetExtendedAnnouncementFlag(true);
         // In case of extended advertisement, specification requires that
         // the vendor ID and product ID are set to 0.
         deviceInfo.SetVendorId(0);
         deviceInfo.SetProductId(0);
     }
 #endif

     GVariantBuilder serviceDataBuilder;
     g_variant_builder_init(&serviceDataBuilder, G_VARIANT_TYPE("a{sv}"));
     g_variant_builder_add(&serviceDataBuilder, "{sv}", mpAdvUUID,
                           g_variant_new_fixed_array(G_VARIANT_TYPE_BYTE, &deviceInfo, sizeof(deviceInfo), sizeof(uint8_t)));

     GVariant * serviceData = g_variant_builder_end(&serviceDataBuilder);

     GAutoPtr<char> debugStr(g_variant_print(serviceData, TRUE));
     ChipLogDetail(DeviceLayer, "SET service data to %s", StringOrNullMarker(debugStr.get()));

     bluez_leadvertisement1_set_service_data(mpAdv, serviceData);

     return CHIP_NO_ERROR;
 }

 void BluezAdvertisement::Shutdown()
 {
     VerifyOrReturn(mIsInitialized);

     // Make sure that the advertisement is stopped before we start cleaning up.
     if (mIsAdvertising)
     {
         CHIP_ERROR err = Stop();
         if (err != CHIP_NO_ERROR)
         {
             ChipLogError(DeviceLayer, "Failed to stop BLE advertisement before shutdown: %" CHIP_ERROR_FORMAT, err.Format());
         }
     }

     // Release resources on the glib thread to synchronize with potential signal handlers
     // attached to the advertising object that may run on the glib thread.
     PlatformMgrImpl().GLibMatterContextInvokeSync(
         +[](BluezAdvertisement * self) {
             if (self->mpRoot != nullptr)
             {
                 g_object_unref(self->mpRoot);
                 self->mpRoot = nullptr;
             }
             if (self->mpAdapter != nullptr)
             {
                 g_object_unref(self->mpAdapter);
                 self->mpAdapter = nullptr;
             }
             if (self->mpAdv != nullptr)
             {
                 g_object_unref(self->mpAdv);
                 self->mpAdv = nullptr;
             }
             return CHIP_NO_ERROR;
         },
         this);

     g_free(mpAdvPath);
     mpAdvPath = nullptr;
     g_free(mpAdvUUID);
     mpAdvUUID = nullptr;

     mIsInitialized = false;
 }

 void BluezAdvertisement::StartDone(GObject * aObject, GAsyncResult * aResult)
 {
     BluezLEAdvertisingManager1 * advMgr = BLUEZ_LEADVERTISING_MANAGER1(aObject);
     GAutoPtr<GError> error;
     gboolean success = FALSE;

     success =
         bluez_leadvertising_manager1_call_register_advertisement_finish(advMgr, aResult, &MakeUniquePointerReceiver(error).Get());
     if (success == FALSE)
     {
         g_dbus_object_manager_server_unexport(mpRoot, mpAdvPath);
     }
     VerifyOrExit(success == TRUE, ChipLogError(DeviceLayer, "FAIL: RegisterAdvertisement : %s", error->message));

     mIsAdvertising = true;

     ChipLogDetail(DeviceLayer, "RegisterAdvertisement complete");

 exit:
     BLEManagerImpl::NotifyBLEPeripheralAdvStartComplete(success == TRUE, nullptr);
 }

 CHIP_ERROR BluezAdvertisement::StartImpl()
 {
     GDBusObject * adapter;
     BluezLEAdvertisingManager1 * advMgr = nullptr;
     GVariantBuilder optionsBuilder;
     GVariant * options;

     VerifyOrExit(!mIsAdvertising, ChipLogError(DeviceLayer, "FAIL: Advertising has already been enabled in %s", __func__));
     VerifyOrExit(mpAdapter != nullptr, ChipLogError(DeviceLayer, "FAIL: NULL mpAdapter in %s", __func__));

     adapter = g_dbus_interface_get_object(G_DBUS_INTERFACE(mpAdapter));
     VerifyOrExit(adapter != nullptr, ChipLogError(DeviceLayer, "FAIL: NULL adapter in %s", __func__));

     advMgr = bluez_object_get_leadvertising_manager1(BLUEZ_OBJECT(adapter));
     VerifyOrExit(advMgr != nullptr, ChipLogError(DeviceLayer, "FAIL: NULL advMgr in %s", __func__));

     g_variant_builder_init(&optionsBuilder, G_VARIANT_TYPE("a{sv}"));
     options = g_variant_builder_end(&optionsBuilder);

     bluez_leadvertising_manager1_call_register_advertisement(
         advMgr, mpAdvPath, options, nullptr,
         [](GObject * aObject, GAsyncResult * aResult, void * aData) {
             reinterpret_cast<BluezAdvertisement *>(aData)->StartDone(aObject, aResult);
         },
         this);

 exit:
     return CHIP_NO_ERROR;
 }

 CHIP_ERROR BluezAdvertisement::Start()
 {
     VerifyOrReturnError(mIsInitialized, CHIP_ERROR_INCORRECT_STATE);

     CHIP_ERROR err = PlatformMgrImpl().GLibMatterContextInvokeSync(
         +[](BluezAdvertisement * self) { return self->StartImpl(); }, this);
     VerifyOrReturnError(err == CHIP_NO_ERROR, CHIP_ERROR_INCORRECT_STATE,
                         ChipLogError(Ble, "Failed to schedule BLE advertisement Start() on CHIPoBluez thread"));
     return err;
 }

 void BluezAdvertisement::StopDone(GObject * aObject, GAsyncResult * aResult)
 {
     BluezLEAdvertisingManager1 * advMgr = BLUEZ_LEADVERTISING_MANAGER1(aObject);
     GAutoPtr<GError> error;
     gboolean success = FALSE;

     success =
         bluez_leadvertising_manager1_call_unregister_advertisement_finish(advMgr, aResult, &MakeUniquePointerReceiver(error).Get());

     if (success == FALSE)
     {
         g_dbus_object_manager_server_unexport(mpRoot, mpAdvPath);
     }
     else
     {
         mIsAdvertising = false;
     }

     VerifyOrExit(success == TRUE, ChipLogError(DeviceLayer, "FAIL: UnregisterAdvertisement : %s", error->message));

     ChipLogDetail(DeviceLayer, "UnregisterAdvertisement complete");

 exit:
     BLEManagerImpl::NotifyBLEPeripheralAdvStopComplete(success == TRUE, nullptr);
 }

 CHIP_ERROR BluezAdvertisement::StopImpl()
 {
     GDBusObject * adapter;
     BluezLEAdvertisingManager1 * advMgr = nullptr;

     VerifyOrExit(mIsAdvertising, ChipLogError(DeviceLayer, "FAIL: Advertising has already been disabled in %s", __func__));
     VerifyOrExit(mpAdapter != nullptr, ChipLogError(DeviceLayer, "FAIL: NULL mpAdapter in %s", __func__));

     adapter = g_dbus_interface_get_object(G_DBUS_INTERFACE(mpAdapter));
     VerifyOrExit(adapter != nullptr, ChipLogError(DeviceLayer, "FAIL: NULL adapter in %s", __func__));

     advMgr = bluez_object_get_leadvertising_manager1(BLUEZ_OBJECT(adapter));
     VerifyOrExit(advMgr != nullptr, ChipLogError(DeviceLayer, "FAIL: NULL advMgr in %s", __func__));

     bluez_leadvertising_manager1_call_unregister_advertisement(
         advMgr, mpAdvPath, nullptr,
         [](GObject * aObject, GAsyncResult * aResult, void * aData) {
             reinterpret_cast<BluezAdvertisement *>(aData)->StopDone(aObject, aResult);
         },
         this);

 exit:
     return CHIP_NO_ERROR;
 }

 CHIP_ERROR BluezAdvertisement::Stop()
 {
     VerifyOrReturnError(mIsInitialized, CHIP_ERROR_INCORRECT_STATE);

     CHIP_ERROR err = PlatformMgrImpl().GLibMatterContextInvokeSync(
         +[](BluezAdvertisement * self) { return self->StopImpl(); }, this);
     VerifyOrReturnError(err == CHIP_NO_ERROR, CHIP_ERROR_INCORRECT_STATE,
                         ChipLogError(Ble, "Failed to schedule BLE advertisement Stop() on CHIPoBluez thread"));
     return err;
 }

 } // namespace Internal
 } // namespace DeviceLayer
 } // namespace chip
	/*
	*
	* Copyright (c) 2020-2023 Project CHIP Authors
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	#include "BluezAdvertisement.h"

	#include <memory>
	#include <unistd.h>

	#include <gio/gio.h>
	#include <glib-object.h>
	#include <glib.h>

	#include <lib/support/CodeUtils.h>
	#include <lib/support/logging/CHIPLogging.h>
	#include <platform/ConfigurationManager.h>
	#include <platform/GLibTypeDeleter.h>
	#include <platform/Linux/dbus/bluez/DbusBluez.h>
	#include <platform/PlatformManager.h>

	#include "BluezEndpoint.h"
	#include "Types.h"

	namespace chip {
	namespace DeviceLayer {
	namespace Internal {

	BluezLEAdvertisement1 * BluezAdvertisement::CreateLEAdvertisement()
	{
	BluezLEAdvertisement1 * adv;
	BluezObjectSkeleton * object;
	GVariant * serviceUUID;
	GVariantBuilder serviceUUIDsBuilder;

	ChipLogDetail(DeviceLayer, "Create BLE adv object at %s", mpAdvPath);
	object = bluez_object_skeleton_new(mpAdvPath);

	adv = bluez_leadvertisement1_skeleton_new();

	g_variant_builder_init(&serviceUUIDsBuilder, G_VARIANT_TYPE("as"));
	g_variant_builder_add(&serviceUUIDsBuilder, "s", mpAdvUUID);

	serviceUUID = g_variant_builder_end(&serviceUUIDsBuilder);

	bluez_leadvertisement1_set_type_(adv, "peripheral");
	bluez_leadvertisement1_set_service_uuids(adv, serviceUUID);
	// empty manufacturer data
	// empty solicit UUIDs
	// empty data

	// Setting "Discoverable" to False on the adapter and to True on the advertisement convinces
	// Bluez to set "BR/EDR Not Supported" flag. Bluez doesn't provide API to do that explicitly
	// and the flag is necessary to force using LE transport.
	bluez_leadvertisement1_set_discoverable(adv, TRUE);
	bluez_leadvertisement1_set_discoverable_timeout(adv, 0 /* infinite */);

	// empty includes
	bluez_leadvertisement1_set_local_name(adv, mAdvName);
	bluez_leadvertisement1_set_appearance(adv, 0xffff /* no appearance */);
	// empty duration
	// empty timeout
	// empty secondary channel for now

	bluez_object_skeleton_set_leadvertisement1(object, adv);
	g_signal_connect(adv, "handle-release",
	G_CALLBACK(+[](BluezLEAdvertisement1 * aAdv, GDBusMethodInvocation * aInv, BluezAdvertisement * self) {
	return self->BluezLEAdvertisement1Release(aAdv, aInv);
	}),
	this);

	g_dbus_object_manager_server_export(mpRoot, G_DBUS_OBJECT_SKELETON(object));
	g_object_unref(object);

	return adv;
	}

	gboolean BluezAdvertisement::BluezLEAdvertisement1Release(BluezLEAdvertisement1 * aAdv, GDBusMethodInvocation * aInvocation)
	{
	ChipLogDetail(DeviceLayer, "Release BLE adv object in %s", __func__);
	g_dbus_object_manager_server_unexport(mpRoot, mpAdvPath);
	g_object_unref(mpAdv);
	mpAdv = nullptr;
	mIsAdvertising = false;
	return TRUE;
	}

	CHIP_ERROR BluezAdvertisement::InitImpl()
	{
	// When creating D-Bus proxy object, the thread default context must be initialized. Otherwise,
	// all D-Bus signals will be delivered to the GLib global default main context.
	VerifyOrDie(g_main_context_get_thread_default() != nullptr);

	mpAdv = CreateLEAdvertisement();
	return CHIP_NO_ERROR;
	}

	CHIP_ERROR BluezAdvertisement::Init(const BluezEndpoint & aEndpoint, const char * aAdvUUID, const char * aAdvName)
	{
	GAutoPtr<char> rootPath;
	CHIP_ERROR err;

	VerifyOrExit(mpAdv == nullptr, err = CHIP_ERROR_INCORRECT_STATE;
	ChipLogError(DeviceLayer, "FAIL: BLE advertisement already initialized in %s", __func__));

	mpRoot = reinterpret_cast<GDBusObjectManagerServer *>(g_object_ref(aEndpoint.GetGattApplicationObjectManager()));
	mpAdapter = reinterpret_cast<BluezAdapter1 *>(g_object_ref(aEndpoint.GetAdapter()));

	g_object_get(G_OBJECT(mpRoot), "object-path", &MakeUniquePointerReceiver(rootPath).Get(), nullptr);
	mpAdvPath = g_strdup_printf("%s/advertising", rootPath.get());
	mpAdvUUID = g_strdup(aAdvUUID);

	if (aAdvName != nullptr)
	{
	g_snprintf(mAdvName, sizeof(mAdvName), "%s", aAdvName);
	}
	else
	{
	// Advertising name corresponding to the PID, for debug purposes.
	g_snprintf(mAdvName, sizeof(mAdvName), "%s%04x", CHIP_DEVICE_CONFIG_BLE_DEVICE_NAME_PREFIX, getpid() & 0xffff);
	}

	err = PlatformMgrImpl().GLibMatterContextInvokeSync(
	+[](BluezAdvertisement * self) { return self->InitImpl(); }, this);
	VerifyOrReturnError(err == CHIP_NO_ERROR, CHIP_ERROR_INCORRECT_STATE,
	ChipLogError(Ble, "Failed to schedule BLE advertisement Init() on CHIPoBluez thread"));

	mIsInitialized = true;

	exit:
	return err;
	}

	CHIP_ERROR BluezAdvertisement::SetIntervals(AdvertisingIntervals aAdvIntervals)
	{
	VerifyOrReturnError(mpAdv != nullptr, CHIP_ERROR_UNINITIALIZED);
	// If the advertisement is already running, BlueZ will update the intervals
	// automatically. There is no need to stop and restart the advertisement.
	bluez_leadvertisement1_set_min_interval(mpAdv, aAdvIntervals.first * 0.625);
	bluez_leadvertisement1_set_max_interval(mpAdv, aAdvIntervals.second * 0.625);
	return CHIP_NO_ERROR;
	}

	CHIP_ERROR BluezAdvertisement::SetupServiceData(ServiceDataFlags aFlags)
	{
	VerifyOrReturnError(mpAdv != nullptr, CHIP_ERROR_UNINITIALIZED);

	Ble::ChipBLEDeviceIdentificationInfo deviceInfo;
	ReturnErrorOnFailure(ConfigurationMgr().GetBLEDeviceIdentificationInfo(deviceInfo));

	#if CHIP_ENABLE_ADDITIONAL_DATA_ADVERTISING
	deviceInfo.SetAdditionalDataFlag(true);
	#endif

	#if CHIP_DEVICE_CONFIG_BLE_EXT_ADVERTISING
	if (aFlags & kServiceDataExtendedAnnouncement)
	{
	deviceInfo.SetExtendedAnnouncementFlag(true);
	// In case of extended advertisement, specification requires that
	// the vendor ID and product ID are set to 0.
	deviceInfo.SetVendorId(0);
	deviceInfo.SetProductId(0);
	}
	#endif

	GVariantBuilder serviceDataBuilder;
	g_variant_builder_init(&serviceDataBuilder, G_VARIANT_TYPE("a{sv}"));
	g_variant_builder_add(&serviceDataBuilder, "{sv}", mpAdvUUID,
	g_variant_new_fixed_array(G_VARIANT_TYPE_BYTE, &deviceInfo, sizeof(deviceInfo), sizeof(uint8_t)));

	GVariant * serviceData = g_variant_builder_end(&serviceDataBuilder);

	GAutoPtr<char> debugStr(g_variant_print(serviceData, TRUE));
	ChipLogDetail(DeviceLayer, "SET service data to %s", StringOrNullMarker(debugStr.get()));

	bluez_leadvertisement1_set_service_data(mpAdv, serviceData);

	return CHIP_NO_ERROR;
	}

	void BluezAdvertisement::Shutdown()
	{
	VerifyOrReturn(mIsInitialized);

	// Make sure that the advertisement is stopped before we start cleaning up.
	if (mIsAdvertising)
	{
	CHIP_ERROR err = Stop();
	if (err != CHIP_NO_ERROR)
	{
	ChipLogError(DeviceLayer, "Failed to stop BLE advertisement before shutdown: %" CHIP_ERROR_FORMAT, err.Format());
	}
	}

	// Release resources on the glib thread to synchronize with potential signal handlers
	// attached to the advertising object that may run on the glib thread.
	PlatformMgrImpl().GLibMatterContextInvokeSync(
	+[](BluezAdvertisement * self) {
	if (self->mpRoot != nullptr)
	{
	g_object_unref(self->mpRoot);
	self->mpRoot = nullptr;
	}
	if (self->mpAdapter != nullptr)
	{
	g_object_unref(self->mpAdapter);
	self->mpAdapter = nullptr;
	}
	if (self->mpAdv != nullptr)
	{
	g_object_unref(self->mpAdv);
	self->mpAdv = nullptr;
	}
	return CHIP_NO_ERROR;
	},
	this);

	g_free(mpAdvPath);
	mpAdvPath = nullptr;
	g_free(mpAdvUUID);
	mpAdvUUID = nullptr;

	mIsInitialized = false;
	}

	void BluezAdvertisement::StartDone(GObject * aObject, GAsyncResult * aResult)
	{
	BluezLEAdvertisingManager1 * advMgr = BLUEZ_LEADVERTISING_MANAGER1(aObject);
	GAutoPtr<GError> error;
	gboolean success = FALSE;

	success =
	bluez_leadvertising_manager1_call_register_advertisement_finish(advMgr, aResult, &MakeUniquePointerReceiver(error).Get());
	if (success == FALSE)
	{
	g_dbus_object_manager_server_unexport(mpRoot, mpAdvPath);
	}
	VerifyOrExit(success == TRUE, ChipLogError(DeviceLayer, "FAIL: RegisterAdvertisement : %s", error->message));

	mIsAdvertising = true;

	ChipLogDetail(DeviceLayer, "RegisterAdvertisement complete");

	exit:
	BLEManagerImpl::NotifyBLEPeripheralAdvStartComplete(success == TRUE, nullptr);
	}

	CHIP_ERROR BluezAdvertisement::StartImpl()
	{
	GDBusObject * adapter;
	BluezLEAdvertisingManager1 * advMgr = nullptr;
	GVariantBuilder optionsBuilder;
	GVariant * options;

	VerifyOrExit(!mIsAdvertising, ChipLogError(DeviceLayer, "FAIL: Advertising has already been enabled in %s", __func__));
	VerifyOrExit(mpAdapter != nullptr, ChipLogError(DeviceLayer, "FAIL: NULL mpAdapter in %s", __func__));

	adapter = g_dbus_interface_get_object(G_DBUS_INTERFACE(mpAdapter));
	VerifyOrExit(adapter != nullptr, ChipLogError(DeviceLayer, "FAIL: NULL adapter in %s", __func__));

	advMgr = bluez_object_get_leadvertising_manager1(BLUEZ_OBJECT(adapter));
	VerifyOrExit(advMgr != nullptr, ChipLogError(DeviceLayer, "FAIL: NULL advMgr in %s", __func__));

	g_variant_builder_init(&optionsBuilder, G_VARIANT_TYPE("a{sv}"));
	options = g_variant_builder_end(&optionsBuilder);

	bluez_leadvertising_manager1_call_register_advertisement(
	advMgr, mpAdvPath, options, nullptr,
	[](GObject * aObject, GAsyncResult * aResult, void * aData) {
	reinterpret_cast<BluezAdvertisement *>(aData)->StartDone(aObject, aResult);
	},
	this);

	exit:
	return CHIP_NO_ERROR;
	}

	CHIP_ERROR BluezAdvertisement::Start()
	{
	VerifyOrReturnError(mIsInitialized, CHIP_ERROR_INCORRECT_STATE);

	CHIP_ERROR err = PlatformMgrImpl().GLibMatterContextInvokeSync(
	+[](BluezAdvertisement * self) { return self->StartImpl(); }, this);
	VerifyOrReturnError(err == CHIP_NO_ERROR, CHIP_ERROR_INCORRECT_STATE,
	ChipLogError(Ble, "Failed to schedule BLE advertisement Start() on CHIPoBluez thread"));
	return err;
	}

	void BluezAdvertisement::StopDone(GObject * aObject, GAsyncResult * aResult)
	{
	BluezLEAdvertisingManager1 * advMgr = BLUEZ_LEADVERTISING_MANAGER1(aObject);
	GAutoPtr<GError> error;
	gboolean success = FALSE;

	success =
	bluez_leadvertising_manager1_call_unregister_advertisement_finish(advMgr, aResult, &MakeUniquePointerReceiver(error).Get());

	if (success == FALSE)
	{
	g_dbus_object_manager_server_unexport(mpRoot, mpAdvPath);
	}
	else
	{
	mIsAdvertising = false;
	}

	VerifyOrExit(success == TRUE, ChipLogError(DeviceLayer, "FAIL: UnregisterAdvertisement : %s", error->message));

	ChipLogDetail(DeviceLayer, "UnregisterAdvertisement complete");

	exit:
	BLEManagerImpl::NotifyBLEPeripheralAdvStopComplete(success == TRUE, nullptr);
	}

	CHIP_ERROR BluezAdvertisement::StopImpl()
	{
	GDBusObject * adapter;
	BluezLEAdvertisingManager1 * advMgr = nullptr;

	VerifyOrExit(mIsAdvertising, ChipLogError(DeviceLayer, "FAIL: Advertising has already been disabled in %s", __func__));
	VerifyOrExit(mpAdapter != nullptr, ChipLogError(DeviceLayer, "FAIL: NULL mpAdapter in %s", __func__));

	adapter = g_dbus_interface_get_object(G_DBUS_INTERFACE(mpAdapter));
	VerifyOrExit(adapter != nullptr, ChipLogError(DeviceLayer, "FAIL: NULL adapter in %s", __func__));

	advMgr = bluez_object_get_leadvertising_manager1(BLUEZ_OBJECT(adapter));
	VerifyOrExit(advMgr != nullptr, ChipLogError(DeviceLayer, "FAIL: NULL advMgr in %s", __func__));

	bluez_leadvertising_manager1_call_unregister_advertisement(
	advMgr, mpAdvPath, nullptr,
	[](GObject * aObject, GAsyncResult * aResult, void * aData) {
	reinterpret_cast<BluezAdvertisement *>(aData)->StopDone(aObject, aResult);
	},
	this);

	exit:
	return CHIP_NO_ERROR;
	}

	CHIP_ERROR BluezAdvertisement::Stop()
	{
	VerifyOrReturnError(mIsInitialized, CHIP_ERROR_INCORRECT_STATE);

	CHIP_ERROR err = PlatformMgrImpl().GLibMatterContextInvokeSync(
	+[](BluezAdvertisement * self) { return self->StopImpl(); }, this);
	VerifyOrReturnError(err == CHIP_NO_ERROR, CHIP_ERROR_INCORRECT_STATE,
	ChipLogError(Ble, "Failed to schedule BLE advertisement Stop() on CHIPoBluez thread"));
	return err;
	}

	} // namespace Internal
	} // namespace DeviceLayer
	} // namespace chip