Merge "Add BluetoothShellCommand" into tm-dev am: cc7477d15e (f3a23c58) · Commits · e / os / android_packages_modules_Bluetooth

service/Android.bp

+1 −0

Original line number	Diff line number	Diff line
		@@ -67,6 +67,7 @@ java_library {
		static_libs: [
		"androidx.annotation_annotation",
		"androidx.appcompat_appcompat",
		"modules-utils-shell-command-handler",
		],

		apex_available: [

service/java/com/android/server/bluetooth/BluetoothManagerService.java

+10 −1

Original line number	Diff line number	Diff line
		@@ -68,6 +68,7 @@ import android.os.HandlerThread;
		import android.os.IBinder;
		import android.os.Looper;
		import android.os.Message;
		import android.os.ParcelFileDescriptor;
		import android.os.PowerExemptionManager;
		import android.os.Process;
		import android.os.RemoteCallbackList;
		@@ -1019,7 +1020,7 @@ public class BluetoothManagerService extends IBluetoothManager.Stub {
		// Check if packageName belongs to callingUid
		final int callingUid = Binder.getCallingUid();
		final boolean isCallerSystem = UserHandle.getAppId(callingUid) == Process.SYSTEM_UID;
		if (!isCallerSystem) {
		if (!isCallerSystem && callingUid != Process.SHELL_UID) {
		checkPackage(callingUid, attributionSource.getPackageName());

		if (requireForeground && !checkIfCallerIsForegroundUser()) {
		@@ -3018,6 +3019,14 @@ public class BluetoothManagerService extends IBluetoothManager.Stub {
		attributionSource, message);
		}

		@Override
		public int handleShellCommand(@NonNull ParcelFileDescriptor in,
		@NonNull ParcelFileDescriptor out, @NonNull ParcelFileDescriptor err,
		@NonNull String[] args) {
		return new BluetoothShellCommand(this, mContext).exec(this, in.getFileDescriptor(),
		out.getFileDescriptor(), err.getFileDescriptor(), args);
		}

		static @NonNull Bundle getTempAllowlistBroadcastOptions() {
		final long duration = 10_000;
		final BroadcastOptions bOptions = BroadcastOptions.makeBasic();

service/java/com/android/server/bluetooth/BluetoothShellCommand.java

0 → 100644

+125 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2022 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.bluetooth;

		import android.content.AttributionSource;
		import android.content.Context;
		import android.os.Binder;
		import android.os.Process;
		import android.os.RemoteException;
		import android.util.Log;

		import com.android.modules.utils.BasicShellCommandHandler;

		import java.io.PrintWriter;

		class BluetoothShellCommand extends BasicShellCommandHandler {
		private static final String TAG = "BluetoothShellCommand";

		private final BluetoothManagerService mManagerService;
		private final Context mContext;

		private final BluetoothCommand[] mBluetoothCommands = {
		new Enable(),
		new Disable(),
		};

		private abstract class BluetoothCommand {
		abstract String getName();
		// require root permission by default, can be override in command implementation
		boolean isPrivileged() {
		return true;
		}
		abstract int exec(PrintWriter pw) throws RemoteException;
		}

		private class Enable extends BluetoothCommand {
		@Override
		String getName() {
		return "enable";
		}
		@Override
		boolean isPrivileged() {
		return false;
		}
		@Override
		public int exec(PrintWriter pw) throws RemoteException {
		pw.println("Enabling Bluetooth");
		return mManagerService.enable(AttributionSource.myAttributionSource()) ? 0 : -1;
		}
		}

		private class Disable extends BluetoothCommand {
		@Override
		String getName() {
		return "disable";
		}
		@Override
		boolean isPrivileged() {
		return false;
		}
		@Override
		public int exec(PrintWriter pw) throws RemoteException {
		pw.println("Disabling Bluetooth");
		return mManagerService.disable(AttributionSource.myAttributionSource(), true) ? 0 : -1;
		}
		}

		BluetoothShellCommand(BluetoothManagerService managerService, Context context) {
		mManagerService = managerService;
		mContext = context;
		}

		@Override
		public int onCommand(String cmd) {
		if (cmd == null) {
		return handleDefaultCommands(null);
		}

		for (BluetoothCommand bt_cmd : mBluetoothCommands) {
		if (cmd.equals(bt_cmd.getName())) {
		if (bt_cmd.isPrivileged()) {
		final int uid = Binder.getCallingUid();
		if (uid != Process.ROOT_UID) {
		throw new SecurityException("Uid " + uid + " does not have access to "
		+ cmd + " bluetooth command (or such command doesn't exist)");
		}
		}
		try {
		return bt_cmd.exec(getOutPrintWriter());
		} catch (RemoteException e) {
		Log.w(TAG, cmd + ": error\nException: " + e.getMessage());
		getErrPrintWriter().println(cmd + ": error\nException: " + e.getMessage());
		e.rethrowFromSystemServer();
		}
		}
		}
		return handleDefaultCommands(cmd);
		}

		@Override
		public void onHelp() {
		PrintWriter pw = getOutPrintWriter();
		pw.println("Bluetooth Commands:");
		pw.println(" help or -h");
		pw.println(" Print this help text.");
		pw.println(" enable");
		pw.println(" Enable Bluetooth on this device.");
		pw.println(" disable");
		pw.println(" Disable Bluetooth on this device.");
		}
		}