From 2122a9c58ebbe7601f3a0b5f1ce02950147339c3 Mon Sep 17 00:00:00 2001
From: Yahav Nussbaum <yahav@google.com>
Date: Tue, 16 Jan 2024 11:54:55 +0000
Subject: [PATCH] Add Powered Off Finding operations to NearbyService

Interface only change, without actual use of the HAL API.

Bug: 307898240
Test: atest NearbyUnitTests
Change-Id: I00772535a8f9247794ff59e465ed2b5af19576b4
---
 .../java/android/nearby/INearbyManager.aidl   |  9 +++-
 .../nearby/PoweredOffFindingEphemeralId.aidl  | 26 ++++++++++++
 .../android/server/nearby/NearbyService.java  | 30 ++++++++++++++
 .../managers/BluetoothFinderManager.java      | 41 +++++++++++++++++++
 4 files changed, 105 insertions(+), 1 deletion(-)
 create mode 100644 nearby/framework/java/android/nearby/PoweredOffFindingEphemeralId.aidl
 create mode 100644 nearby/service/java/com/android/server/nearby/managers/BluetoothFinderManager.java

diff --git a/nearby/framework/java/android/nearby/INearbyManager.aidl b/nearby/framework/java/android/nearby/INearbyManager.aidl
index 7af271ecf2..21ae0ac6cc 100644
--- a/nearby/framework/java/android/nearby/INearbyManager.aidl
+++ b/nearby/framework/java/android/nearby/INearbyManager.aidl
@@ -20,6 +20,7 @@ import android.nearby.IBroadcastListener;
 import android.nearby.IScanListener;
 import android.nearby.BroadcastRequestParcelable;
 import android.nearby.ScanRequest;
+import android.nearby.PoweredOffFindingEphemeralId;
 import android.nearby.aidl.IOffloadCallback;
 
 /**
@@ -40,4 +41,10 @@ interface INearbyManager {
     void stopBroadcast(in IBroadcastListener callback, String packageName, @nullable String attributionTag);
 
     void queryOffloadCapability(in IOffloadCallback callback) ;
-}
\ No newline at end of file
+
+    void setPoweredOffFindingEphemeralIds(in List<PoweredOffFindingEphemeralId> eids);
+
+    void setPoweredOffModeEnabled(boolean enabled);
+
+    boolean getPoweredOffModeEnabled();
+}
diff --git a/nearby/framework/java/android/nearby/PoweredOffFindingEphemeralId.aidl b/nearby/framework/java/android/nearby/PoweredOffFindingEphemeralId.aidl
new file mode 100644
index 0000000000..9f4bfef6df
--- /dev/null
+++ b/nearby/framework/java/android/nearby/PoweredOffFindingEphemeralId.aidl
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2024, The Android Open Source Project
+ *
+ * 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.
+ */
+
+package android.nearby;
+
+/**
+ * Find My Device network ephemeral ID for powered off finding.
+ *
+ * @hide
+ */
+parcelable PoweredOffFindingEphemeralId {
+    byte[20] bytes;
+}
diff --git a/nearby/service/java/com/android/server/nearby/NearbyService.java b/nearby/service/java/com/android/server/nearby/NearbyService.java
index 3c183ec22c..1575f0776a 100644
--- a/nearby/service/java/com/android/server/nearby/NearbyService.java
+++ b/nearby/service/java/com/android/server/nearby/NearbyService.java
@@ -35,12 +35,14 @@ import android.nearby.IBroadcastListener;
 import android.nearby.INearbyManager;
 import android.nearby.IScanListener;
 import android.nearby.NearbyManager;
+import android.nearby.PoweredOffFindingEphemeralId;
 import android.nearby.ScanRequest;
 import android.nearby.aidl.IOffloadCallback;
 import android.util.Log;
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.server.nearby.injector.Injector;
+import com.android.server.nearby.managers.BluetoothFinderManager;
 import com.android.server.nearby.managers.BroadcastProviderManager;
 import com.android.server.nearby.managers.DiscoveryManager;
 import com.android.server.nearby.managers.DiscoveryProviderManager;
@@ -50,6 +52,8 @@ import com.android.server.nearby.util.identity.CallerIdentity;
 import com.android.server.nearby.util.permissions.BroadcastPermissions;
 import com.android.server.nearby.util.permissions.DiscoveryPermissions;
 
+import java.util.List;
+
 /** Service implementing nearby functionality. */
 public class NearbyService extends INearbyManager.Stub {
     public static final String TAG = "NearbyService";
@@ -79,6 +83,7 @@ public class NearbyService extends INearbyManager.Stub {
             };
     private final DiscoveryManager mDiscoveryProviderManager;
     private final BroadcastProviderManager mBroadcastProviderManager;
+    private final BluetoothFinderManager mBluetoothFinderManager;
 
     public NearbyService(Context context) {
         mContext = context;
@@ -90,6 +95,7 @@ public class NearbyService extends INearbyManager.Stub {
                 mNearbyConfiguration.refactorDiscoveryManager()
                         ? new DiscoveryProviderManager(context, mInjector)
                         : new DiscoveryProviderManagerLegacy(context, mInjector);
+        mBluetoothFinderManager = new BluetoothFinderManager();
     }
 
     @VisibleForTesting
@@ -148,6 +154,30 @@ public class NearbyService extends INearbyManager.Stub {
         mDiscoveryProviderManager.queryOffloadCapability(callback);
     }
 
+    @Override
+    public void setPoweredOffFindingEphemeralIds(List<PoweredOffFindingEphemeralId> eids) {
+        // Permissions check
+        enforceBluetoothPrivilegedPermission(mContext);
+
+        mBluetoothFinderManager.sendEids(eids);
+    }
+
+    @Override
+    public void setPoweredOffModeEnabled(boolean enabled) {
+        // Permissions check
+        enforceBluetoothPrivilegedPermission(mContext);
+
+        mBluetoothFinderManager.setPoweredOffFinderMode(enabled);
+    }
+
+    @Override
+    public boolean getPoweredOffModeEnabled() {
+        // Permissions check
+        enforceBluetoothPrivilegedPermission(mContext);
+
+        return mBluetoothFinderManager.getPoweredOffFinderMode();
+    }
+
     /**
      * Called by the service initializer.
      *
diff --git a/nearby/service/java/com/android/server/nearby/managers/BluetoothFinderManager.java b/nearby/service/java/com/android/server/nearby/managers/BluetoothFinderManager.java
new file mode 100644
index 0000000000..63ff516ce5
--- /dev/null
+++ b/nearby/service/java/com/android/server/nearby/managers/BluetoothFinderManager.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * 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.
+ */
+
+package com.android.server.nearby.managers;
+
+import android.nearby.PoweredOffFindingEphemeralId;
+
+import java.util.List;
+
+/** Connects to {@link IBluetoothFinder} HAL and invokes its API. */
+// A placeholder implementation until the HAL API can be used.
+public class BluetoothFinderManager {
+
+    private boolean mPoweredOffFindingModeEnabled = false;
+
+    /** An empty implementation of the corresponding HAL API call. */
+    public void sendEids(List<PoweredOffFindingEphemeralId> eids) {}
+
+    /** A placeholder implementation of the corresponding HAL API call. */
+    public void setPoweredOffFinderMode(boolean enable) {
+        mPoweredOffFindingModeEnabled = enable;
+    }
+
+    /** A placeholder implementation of the corresponding HAL API call. */
+    public boolean getPoweredOffFinderMode() {
+        return mPoweredOffFindingModeEnabled;
+    }
+}
-- 
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