Add an initial BLE v2 implementation.

2026-09-16 15:36:12 -04:00 · 2023-09-08 16:53:49 +05:30
parent 2425473981
commit 54d31abedf
32 changed files with 2442 additions and 28 deletions
@@ -0,0 +1,73 @@
+#include "internal/platform/implementation/linux/bluez_advertisement_monitor.h"
+#include "internal/platform/byte_array.h"
+#include "internal/platform/implementation/ble_v2.h"
+#include "internal/platform/implementation/linux/dbus.h"
+#include "internal/platform/implementation/linux/utils.h"
+#include "internal/platform/uuid.h"
+namespace nearby {
+namespace linux {
+namespace bluez {
+AdvertisementMonitor::AdvertisementMonitor(
+    sdbus::IConnection &system_bus, Uuid service_uuid,
+    api::ble_v2::TxPowerLevel tx_power_level, absl::string_view type,
+    std::shared_ptr<BluetoothDevices> devices,
+    api::ble_v2::BleMedium::ScanCallback scan_callback)
+    : AdvertisementMonitor(
+          system_bus, service_uuid, tx_power_level, type, std::move(devices),
+          api::ble_v2::BleMedium::ScanningCallback{
+              .start_scanning_result = nullptr,
+              .advertisement_found_cb =
+                  std::move(scan_callback.advertisement_found_cb)}) {}
+
+AdvertisementMonitor::AdvertisementMonitor(
+    sdbus::IConnection &system_bus, Uuid service_uuid,
+    api::ble_v2::TxPowerLevel tx_power_level, absl::string_view type,
+    std::shared_ptr<BluetoothDevices> devices,
+    api::ble_v2::BleMedium::ScanningCallback scan_callback)
+    : AdaptorInterfaces(system_bus, bluez::advertisement_monitor_path(
+                                        std::string{service_uuid})),
+      devices_(std::move(devices)),
+      scan_callback_{std::move(scan_callback.advertisement_found_cb)},
+      start_scanning_result_callback_(
+          std::move(scan_callback.start_scanning_result)),
+      type_(type),
+      service_uuid_(service_uuid),
+      tx_power_level_(tx_power_level) {
+  registerAdaptor();
+}
+
+void AdvertisementMonitor::DeviceFound(const sdbus::ObjectPath &device) {
+  devices_->cleanup_lost_peripherals();
+  auto peripheral = devices_->add_new_device(device);
+  std::map<std::string, sdbus::Variant> service_data;
+  try {
+    service_data = peripheral->ServiceData();
+  } catch (const sdbus::Error &e) {
+    DBUS_LOG_PROPERTY_GET_ERROR(peripheral, "ServiceData", e);
+    return;
+  }
+
+  struct api::ble_v2::BleAdvertisementData adv_data;
+  for (const auto &[uuid_str, data] : service_data) {
+    auto uuid = UuidFromString(uuid_str);
+    if (!uuid.has_value()) {
+      NEARBY_LOGS(ERROR)
+          << __func__
+          << ": Could not parse UUID string in ServiceData for peripheral "
+          << peripheral->getObjectPath();
+      continue;
+    }
+
+    std::vector<uint8_t> bytes = data;
+    adv_data.service_data.emplace(*uuid,
+                                  std::string(bytes.begin(), bytes.end()));
+  }
+  scan_callback_.advertisement_found_cb(*peripheral, adv_data);
+}
+
+void AdvertisementMonitor::DeviceLost(const sdbus::ObjectPath &device) {
+  devices_->mark_peripheral_lost(device);
+}
+}  // namespace bluez
+}  // namespace linux
+}  // namespace nearby