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Add BLE V1 windows platform implementation
This CL implements the BLE V1 Medium and its corresponding unit tests: - Start/Stop Advertising - Start/Stop Scanning - Receive BLE Advertisement callbacks handler - BLE Advertisement Publisher/Watcher status callbacks handler PiperOrigin-RevId: 449824666
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aaronyujiaze
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Copybara-Service
Copybara-Service
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// Copyright 2022 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "internal/platform/implementation/windows/ble_medium.h"
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#include <array>
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#include "gmock/gmock.h"
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#include "protobuf-matchers/protocol-buffer-matchers.h"
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#include "gtest/gtest.h"
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#include "absl/synchronization/notification.h"
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#include "internal/platform/implementation/ble.h"
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#include "internal/platform/implementation/bluetooth_adapter.h"
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#include "internal/platform/implementation/windows/ble.h"
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#include "internal/platform/implementation/windows/bluetooth_adapter.h"
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namespace location {
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namespace nearby {
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namespace windows {
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namespace {
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constexpr uint8_t kCopresenceServiceUuid[] = {0xfe, 0xf3};
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constexpr uint8_t kVersionBitmask = 0xE0;
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constexpr uint8_t kSocketVersionBitmask = 0x1C;
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constexpr uint8_t kFastAdvertisementFlagBitmask = 0x02;
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constexpr uint8_t kPcpBitmask = 0x1F;
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constexpr uint8_t kVisibilityBitmask = 0x01;
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TEST(BleMedium, DISABLED_StartAdvertising) {
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BluetoothAdapter bluetoothAdapter;
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BleMedium ble_medium(bluetoothAdapter);
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std::array<char, 29> advertising_data_byte_array;
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// (2 bytes) 16-bit Service UUID 0xf3fe
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advertising_data_byte_array.at(0) =
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static_cast<unsigned char>(kCopresenceServiceUuid[1]);
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advertising_data_byte_array.at(1) =
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static_cast<unsigned char>(kCopresenceServiceUuid[0]);
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// (1 byte) version [3-bits] + socket_version [3-bits] +
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// fast_advertisement_flag [1-bit] + reserved [1-bit]
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uint8_t ble_medium_version = 0x02; // mediums::BleAdvertisement::Version::kV2
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uint8_t socket_version =
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0x02; // mediums::BleAdvertisement::SocketVersion::kV2
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bool fast_advertisement = true; // Is Fast Advertisement
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uint8_t ble_medium_advertisement_metadata_byte =
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(ble_medium_version << 5) & kVersionBitmask;
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ble_medium_advertisement_metadata_byte |=
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(socket_version << 2) & kSocketVersionBitmask;
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ble_medium_advertisement_metadata_byte |=
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((fast_advertisement ? 1 : 0) << 1) & kFastAdvertisementFlagBitmask;
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advertising_data_byte_array.at(2) =
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static_cast<unsigned char>(ble_medium_advertisement_metadata_byte);
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// (1 byte) body_length
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advertising_data_byte_array.at(3) = static_cast<unsigned char>(
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0x19); // always 25 bytes for Fast Advertisement
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// (1 byte) Nearby Connection version [3-bits] + pcp [5-bits]
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uint8_t ble_connections_version =
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0x01; // connections::BleAdvertisement::Version::kV1
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uint8_t pcp = 0x02; // connections::Pcp::kP2pCluster
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uint8_t ble_connections_advertisement_metadata_byte =
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(ble_connections_version << 5) & kVersionBitmask;
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ble_connections_advertisement_metadata_byte |= pcp & kPcpBitmask;
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advertising_data_byte_array.at(4) =
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static_cast<unsigned char>(ble_connections_advertisement_metadata_byte);
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// (4 bytes) endpoint_id
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for (int i = 0; i < 4; ++i) {
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advertising_data_byte_array.at(5 + i) = static_cast<unsigned char>(0x00);
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}
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// (1 byte) endpoint_info_size
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advertising_data_byte_array.at(9) = static_cast<unsigned char>(
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0x11); // always 17-bytes for Fast Advertisement
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// =========endpoint_info [17-bytes]============
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// (1 byte) Nearby Share version [3-bits] + visibility [1-bit] + reserved
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// [4-bits]
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uint8_t nearby_share_version = 0x00; // nearby share v1
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uint8_t visibility = 0x00; // [placeholder] sharing::Visibility::kAllContacts
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uint8_t nearby_share_metadata_byte =
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(nearby_share_version << 5) & kVersionBitmask;
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nearby_share_metadata_byte |= ((visibility & kVisibilityBitmask) << 4);
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advertising_data_byte_array.at(10) = static_cast<unsigned char>(0x00);
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// (2 bytes) salt
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for (int i = 0; i < 2; ++i) {
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advertising_data_byte_array.at(11 + i) = static_cast<unsigned char>(0x00);
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}
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// (14 bytes) encrypted_metadata_key
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for (int i = 0; i < 14; ++i) {
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advertising_data_byte_array.at(13 + i) = static_cast<unsigned char>(0x00);
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}
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// =========endpoint_info [17-bytes]============
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// (2 bytes) device_token
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for (int i = 0; i < 2; ++i) {
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advertising_data_byte_array.at(27 + i) = static_cast<unsigned char>(0x00);
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}
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ByteArray advertising_data(advertising_data_byte_array);
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EXPECT_TRUE(
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ble_medium.StartAdvertising("NearbyShare", advertising_data, "\xfe\xf3"));
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}
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TEST(BleMedium, DISABLED_StopAdvertising) {
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BluetoothAdapter bluetoothAdapter;
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BleMedium ble_medium(bluetoothAdapter);
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std::array<char, 2> advertising_data_byte_array;
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// (2 bytes) 16-bit Service UUID 0xf3fe
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advertising_data_byte_array.at(0) =
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static_cast<unsigned char>(kCopresenceServiceUuid[1]);
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advertising_data_byte_array.at(1) =
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static_cast<unsigned char>(kCopresenceServiceUuid[0]);
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ByteArray advertising_data(advertising_data_byte_array);
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EXPECT_TRUE(
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ble_medium.StartAdvertising("NearbyShare", advertising_data, "\xfe\xf3"));
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EXPECT_TRUE(ble_medium.StopAdvertising("NearbyShare"));
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}
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TEST(BleMedium, DISABLED_StartScanning) {
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BluetoothAdapter bluetoothAdapter;
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BleMedium ble_medium(bluetoothAdapter);
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BleMedium::DiscoveredPeripheralCallback discovered_peripheral_callback = {
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.peripheral_discovered_cb = [this](api::BlePeripheral& peripheral,
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const std::string& service_id,
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bool fast_advertisement) {},
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.peripheral_lost_cb = [this](api::BlePeripheral& peripheral,
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const std::string& service_id) {}};
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EXPECT_TRUE(ble_medium.StartScanning("NearbyShare", "\xfe\xf3",
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discovered_peripheral_callback));
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}
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TEST(BleMedium, DISABLED_ReceiveAdvertisement) {
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absl::Notification advertisement_received_notification;
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BluetoothAdapter bluetoothAdapter;
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BleMedium ble_medium(bluetoothAdapter);
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BleMedium::DiscoveredPeripheralCallback discovered_peripheral_callback = {
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.peripheral_discovered_cb =
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[this, &advertisement_received_notification](
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api::BlePeripheral& peripheral, const std::string& service_id,
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bool fast_advertisement) {
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advertisement_received_notification.Notify();
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},
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.peripheral_lost_cb = [this](api::BlePeripheral& peripheral,
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const std::string& service_id) {}};
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EXPECT_TRUE(ble_medium.StartScanning("NearbyShare", "\xfe\xf3",
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discovered_peripheral_callback));
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EXPECT_TRUE(
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advertisement_received_notification.WaitForNotificationWithTimeout(
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absl::Seconds(5)));
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}
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TEST(BleMedium, DISABLED_StopScanning) {
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BluetoothAdapter bluetoothAdapter;
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BleMedium ble_medium(bluetoothAdapter);
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BleMedium::DiscoveredPeripheralCallback discovered_peripheral_callback = {
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.peripheral_discovered_cb =
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[this](api::BlePeripheral& peripheral, const std::string& service_id,
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bool fast_advertisement) { EXPECT_TRUE(fast_advertisement); },
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.peripheral_lost_cb = [this](api::BlePeripheral& peripheral,
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const std::string& service_id) {}};
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EXPECT_TRUE(ble_medium.StartScanning("NearbyShare", "\xfe\xf3",
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discovered_peripheral_callback));
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EXPECT_TRUE(ble_medium.StopScanning("NearbyShare"));
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}
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} // namespace
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} // namespace windows
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} // namespace nearby
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} // namespace location
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