From 3d97a540b55703a6df6b78c3269b598dd007e004 Mon Sep 17 00:00:00 2001
From: kidfromjupiter <limahaliyana@gmail.com>
Date: Sat, 10 Jan 2026 11:23:19 +0000
Subject: [PATCH] Enabled BLE advertisements with extended + GATT server.

---
 internal/platform/implementation/linux/ble_v2_medium.cc  | 9 +++++++--
 .../implementation/linux/bluez_advertisement_monitor.h   | 8 +++++---
 internal/platform/implementation/linux/dbus.h            | 4 +++-
 3 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/internal/platform/implementation/linux/ble_v2_medium.cc b/internal/platform/implementation/linux/ble_v2_medium.cc
index a6d86523..bf1b082f 100644
--- a/internal/platform/implementation/linux/ble_v2_medium.cc
+++ b/internal/platform/implementation/linux/ble_v2_medium.cc
@@ -53,10 +53,10 @@ BleV2Medium::BleV2Medium(BluetoothAdapter &adapter)
   if (adv_monitor_manager_) {
     LOG(INFO)
         << __func__
-        << ": Registering path / with AdvertisementMonitorManager at "
+        << ": Registering path /com/google/nearby/medium/ble/advertisement/monitor with AdvertisementMonitorManager at "
         << adv_monitor_manager_->getObjectPath();
     try {
-      adv_monitor_manager_->RegisterMonitor("/");
+      adv_monitor_manager_->RegisterMonitor("/com/google/nearby/medium/ble/advertisement/monitor");
     } catch (const sdbus::Error &e) {
       DBUS_LOG_METHOD_CALL_ERROR(adv_monitor_manager_, "RegisterMonitor", e);
     }
@@ -251,6 +251,7 @@ bool BleV2Medium::IsExtendedAdvertisementsAvailable() {
 bool BleV2Medium::StartLEDiscovery() {
   std::map<std::string, sdbus::Variant> filter;
   filter["Transport"] = "auto";
+  filter["DuplicateData"] = true;
   auto &adapter = adapter_.GetBluezAdapterObject();
 
   try {
@@ -310,8 +311,12 @@ bool BleV2Medium::StartScanning(const Uuid &service_uuid,
       *system_bus_, service_uuid, tx_power_level, "or_patterns", devices_,
       std::move(callback));
   try {
+    // why is this emitted?
     monitor->emitInterfacesAddedSignal(
         {org::bluez::AdvertisementMonitor1_adaptor::INTERFACE_NAME});
+
+    // adv_monitor_manager_ -> RegisterMonitor(monitor -> getObjectPath());
+    LOG(INFO)<< __func__ << ": Registered advertisement monitor with path " << monitor -> getObjectPath();
   } catch (const sdbus::Error &e) {
     LOG(ERROR)
         << __func__
diff --git a/internal/platform/implementation/linux/bluez_advertisement_monitor.h b/internal/platform/implementation/linux/bluez_advertisement_monitor.h
index 24e57696..ea251f85 100644
--- a/internal/platform/implementation/linux/bluez_advertisement_monitor.h
+++ b/internal/platform/implementation/linux/bluez_advertisement_monitor.h
@@ -53,6 +53,7 @@ class AdvertisementMonitor final
   // Methods
   void Release() override {}
   void Activate() override {
+    LOG(INFO) <<__func__ << ": bluez advertisement monitor activated at path: " << getObjectPath();
     if (start_scanning_result_callback_ != nullptr) {
       start_scanning_result_callback_(absl::OkStatus());
     }
@@ -63,9 +64,9 @@ class AdvertisementMonitor final
 
   // Properties
   std::string Type() override { return type_; };
-  int16_t RSSILowThreshold() override { return 0; };
+  int16_t RSSILowThreshold() override { return 127; };
   int16_t RSSIHighThreshold() override {
-    return bluez::TxPowerLevelDbm(tx_power_level_);
+    return 127;
   }
   uint16_t RSSISamplingPeriod() override {
     // The Windows implementation uses a sampling interval of 2 seconds.
@@ -77,7 +78,8 @@ class AdvertisementMonitor final
     return {{0,
              0x16,
              {static_cast<uint8_t>(service_id_data[3] & 0xFF),
-              static_cast<uint8_t>(service_id_data[2] & 0xFF)}}};
+              static_cast<uint8_t>(service_id_data[2] & 0xFF)}
+    }};
   };
 
   std::shared_ptr<BluetoothDevices> devices_;
diff --git a/internal/platform/implementation/linux/dbus.h b/internal/platform/implementation/linux/dbus.h
index c0dfae9f..18e7ca4f 100644
--- a/internal/platform/implementation/linux/dbus.h
+++ b/internal/platform/implementation/linux/dbus.h
@@ -51,8 +51,10 @@ class RootObjectManager final
     : public sdbus::AdaptorInterfaces<sdbus::ObjectManager_adaptor,
                                       sdbus::Properties_adaptor> {
  public:
+  // only used in ble advertisement monitoring for now.
+  // TODO: Remove hardcodinged va
   explicit RootObjectManager(sdbus::IConnection &system_bus)
-      : AdaptorInterfaces(system_bus, "/") {
+      : AdaptorInterfaces(system_bus, "/com/google/nearby/medium/ble/advertisement/monitor") {
     registerAdaptor();
   }
   ~RootObjectManager() { unregisterAdaptor(); }