548 lines
17 KiB
Java
548 lines
17 KiB
Java
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/*
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* Copyright (C) 2009 The Android Open Source Project
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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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* http://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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*/
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package android.bluetooth;
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import android.annotation.FlaggedApi;
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import android.annotation.NonNull;
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import android.annotation.Nullable;
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import android.annotation.SuppressLint;
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import android.annotation.SystemApi;
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import android.compat.annotation.UnsupportedAppUsage;
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import android.os.ParcelUuid;
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import com.android.bluetooth.flags.Flags;
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import java.nio.ByteBuffer;
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import java.nio.ByteOrder;
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import java.util.Arrays;
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import java.util.HashSet;
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import java.util.UUID;
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/**
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* Static helper methods and constants to decode the ParcelUuid of remote devices. Bluetooth service
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* UUIDs are defined in the SDP section of the Bluetooth Assigned Numbers document. The constant 128
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* bit values in this class are calculated as: uuid * 2^96 + {@link #BASE_UUID}.
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*
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* @hide
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*/
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@SystemApi
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@SuppressLint("AndroidFrameworkBluetoothPermission")
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public final class BluetoothUuid {
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/**
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* UUID corresponding to the Audio sink role (also referred to as the A2DP sink role).
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid A2DP_SINK =
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ParcelUuid.fromString("0000110B-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Audio source role (also referred to as the A2DP source role).
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid A2DP_SOURCE =
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ParcelUuid.fromString("0000110A-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Advanced Audio Distribution Profile (A2DP).
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid ADV_AUDIO_DIST =
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ParcelUuid.fromString("0000110D-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Headset Profile (HSP).
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid HSP =
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ParcelUuid.fromString("00001108-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Headset Profile (HSP) Audio Gateway role.
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid HSP_AG =
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ParcelUuid.fromString("00001112-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Hands-Free Profile (HFP).
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid HFP =
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ParcelUuid.fromString("0000111E-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Hands-Free Profile (HFP) Audio Gateway role.
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid HFP_AG =
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ParcelUuid.fromString("0000111F-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Audio Video Remote Control Profile (AVRCP).
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid AVRCP =
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ParcelUuid.fromString("0000110E-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Audio Video Remote Control Profile (AVRCP) controller role.
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid AVRCP_CONTROLLER =
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ParcelUuid.fromString("0000110F-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Audio Video Remote Control Profile (AVRCP) target role.
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid AVRCP_TARGET =
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ParcelUuid.fromString("0000110C-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the OBject EXchange (OBEX) Object Push Profile (OPP).
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid OBEX_OBJECT_PUSH =
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ParcelUuid.fromString("00001105-0000-1000-8000-00805f9b34fb");
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/**
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* UUID corresponding to the Human Interface Device (HID) profile.
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid HID =
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ParcelUuid.fromString("00001124-0000-1000-8000-00805f9b34fb");
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/**
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* UUID corresponding to the Human Interface Device over GATT Profile (HOGP).
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid HOGP =
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ParcelUuid.fromString("00001812-0000-1000-8000-00805f9b34fb");
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/**
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* UUID corresponding to the Personal Area Network User (PANU) role.
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid PANU =
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ParcelUuid.fromString("00001115-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Network Access Point (NAP) role.
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid NAP =
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ParcelUuid.fromString("00001116-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Bluetooth Network Encapsulation Protocol (BNEP).
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid BNEP =
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ParcelUuid.fromString("0000000f-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Phonebook Access Profile (PBAP) client role.
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid PBAP_PCE =
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ParcelUuid.fromString("0000112e-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Phonebook Access Profile (PBAP) server role.
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid PBAP_PSE =
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ParcelUuid.fromString("0000112f-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Message Access Profile (MAP).
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid MAP =
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ParcelUuid.fromString("00001134-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Message Notification Server (MNS) role.
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid MNS =
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ParcelUuid.fromString("00001133-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Message Access Server (MAS) role.
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid MAS =
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ParcelUuid.fromString("00001132-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Sim Access Profile (SAP).
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid SAP =
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ParcelUuid.fromString("0000112D-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Hearing Aid Profile.
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid HEARING_AID =
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ParcelUuid.fromString("0000FDF0-0000-1000-8000-00805f9b34fb");
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/**
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* UUID corresponding to the Hearing Access Service (HAS).
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid HAS =
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ParcelUuid.fromString("00001854-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Made For iPhone/iPod/iPad Hearing Aid Service (MFi HAS).
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*
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* @hide
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*/
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@NonNull
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@SystemApi
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@FlaggedApi(Flags.FLAG_MFI_HAS_UUID)
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public static final ParcelUuid MFI_HAS =
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ParcelUuid.fromString("7D74F4BD-C74A-4431-862C-CCE884371592");
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/**
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* UUID corresponding to Audio Stream Control (also known as Bluetooth Low Energy Audio).
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid LE_AUDIO =
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ParcelUuid.fromString("0000184E-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Device Identification Profile (DIP).
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid DIP =
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ParcelUuid.fromString("00001200-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Volume Control Service.
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid VOLUME_CONTROL =
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ParcelUuid.fromString("00001844-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Generic Media Control Service.
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid GENERIC_MEDIA_CONTROL =
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ParcelUuid.fromString("00001849-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Media Control Service.
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid MEDIA_CONTROL =
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ParcelUuid.fromString("00001848-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Coordinated Set Identification Service.
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid COORDINATED_SET =
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ParcelUuid.fromString("00001846-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Common Audio Service.
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*
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* @hide
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*/
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@NonNull @SystemApi
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public static final ParcelUuid CAP =
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ParcelUuid.fromString("00001853-0000-1000-8000-00805F9B34FB");
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/**
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* UUID corresponding to the Broadcast Audio Scan Service (also known as LE Audio Broadcast
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* Assistant).
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*
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* @hide
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*/
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@NonNull
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public static final ParcelUuid BATTERY =
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ParcelUuid.fromString("0000180F-0000-1000-8000-00805F9B34FB");
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/** @hide */
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@NonNull @SystemApi
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public static final ParcelUuid BASS =
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ParcelUuid.fromString("0000184F-0000-1000-8000-00805F9B34FB");
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/**
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* Telephony and Media Audio Profile (TMAP) UUID
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*
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* @hide
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*/
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@NonNull
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public static final ParcelUuid TMAP =
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ParcelUuid.fromString("00001855-0000-1000-8000-00805F9B34FB");
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/** @hide */
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@NonNull @SystemApi
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public static final ParcelUuid BASE_UUID =
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ParcelUuid.fromString("00000000-0000-1000-8000-00805F9B34FB");
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/**
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* Length of bytes for 16 bit UUID
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*
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* @hide
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*/
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@SystemApi public static final int UUID_BYTES_16_BIT = 2;
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/**
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* Length of bytes for 32 bit UUID
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*
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* @hide
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*/
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@SystemApi public static final int UUID_BYTES_32_BIT = 4;
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/**
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* Length of bytes for 128 bit UUID
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*
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* @hide
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*/
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@SystemApi public static final int UUID_BYTES_128_BIT = 16;
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/**
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* Returns true if there any common ParcelUuids in uuidA and uuidB.
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*
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* @param uuidA - List of ParcelUuids
|
||
|
|
* @param uuidB - List of ParcelUuids
|
||
|
|
* @hide
|
||
|
|
*/
|
||
|
|
@SystemApi
|
||
|
|
public static boolean containsAnyUuid(
|
||
|
|
@Nullable ParcelUuid[] uuidA, @Nullable ParcelUuid[] uuidB) {
|
||
|
|
if (uuidA == null && uuidB == null) return true;
|
||
|
|
|
||
|
|
if (uuidA == null) {
|
||
|
|
return uuidB.length == 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (uuidB == null) {
|
||
|
|
return uuidA.length == 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
HashSet<ParcelUuid> uuidSet = new HashSet<ParcelUuid>(Arrays.asList(uuidA));
|
||
|
|
for (ParcelUuid uuid : uuidB) {
|
||
|
|
if (uuidSet.contains(uuid)) return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Extract the Service Identifier or the actual uuid from the Parcel Uuid. For example, if
|
||
|
|
* 0000110B-0000-1000-8000-00805F9B34FB is the parcel Uuid, this function will return 110B
|
||
|
|
*/
|
||
|
|
private static int getServiceIdentifierFromParcelUuid(ParcelUuid parcelUuid) {
|
||
|
|
UUID uuid = parcelUuid.getUuid();
|
||
|
|
long value = (uuid.getMostSignificantBits() & 0xFFFFFFFF00000000L) >>> 32;
|
||
|
|
return (int) value;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Parse UUID from bytes. The {@code uuidBytes} can represent a 16-bit, 32-bit or 128-bit UUID,
|
||
|
|
* but the returned UUID is always in 128-bit format. Note UUID is little endian in Bluetooth.
|
||
|
|
*
|
||
|
|
* @param uuidBytes Byte representation of uuid.
|
||
|
|
* @return {@link ParcelUuid} parsed from bytes.
|
||
|
|
* @throws IllegalArgumentException If the {@code uuidBytes} cannot be parsed.
|
||
|
|
* @hide
|
||
|
|
*/
|
||
|
|
@NonNull
|
||
|
|
@SystemApi
|
||
|
|
public static ParcelUuid parseUuidFrom(@Nullable byte[] uuidBytes) {
|
||
|
|
if (uuidBytes == null) {
|
||
|
|
throw new IllegalArgumentException("uuidBytes cannot be null");
|
||
|
|
}
|
||
|
|
int length = uuidBytes.length;
|
||
|
|
if (length != UUID_BYTES_16_BIT
|
||
|
|
&& length != UUID_BYTES_32_BIT
|
||
|
|
&& length != UUID_BYTES_128_BIT) {
|
||
|
|
throw new IllegalArgumentException("uuidBytes length invalid - " + length);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Construct a 128 bit UUID.
|
||
|
|
if (length == UUID_BYTES_128_BIT) {
|
||
|
|
ByteBuffer buf = ByteBuffer.wrap(uuidBytes).order(ByteOrder.LITTLE_ENDIAN);
|
||
|
|
long msb = buf.getLong(8);
|
||
|
|
long lsb = buf.getLong(0);
|
||
|
|
return new ParcelUuid(new UUID(msb, lsb));
|
||
|
|
}
|
||
|
|
|
||
|
|
// For 16 bit and 32 bit UUID we need to convert them to 128 bit value.
|
||
|
|
// 128_bit_value = uuid * 2^96 + BASE_UUID
|
||
|
|
long shortUuid;
|
||
|
|
if (length == UUID_BYTES_16_BIT) {
|
||
|
|
shortUuid = uuidBytes[0] & 0xFF;
|
||
|
|
shortUuid += (uuidBytes[1] & 0xFF) << 8;
|
||
|
|
} else {
|
||
|
|
shortUuid = uuidBytes[0] & 0xFF;
|
||
|
|
shortUuid += (uuidBytes[1] & 0xFF) << 8;
|
||
|
|
shortUuid += (uuidBytes[2] & 0xFF) << 16;
|
||
|
|
shortUuid += (uuidBytes[3] & 0xFF) << 24;
|
||
|
|
}
|
||
|
|
long msb = BASE_UUID.getUuid().getMostSignificantBits() + (shortUuid << 32);
|
||
|
|
long lsb = BASE_UUID.getUuid().getLeastSignificantBits();
|
||
|
|
return new ParcelUuid(new UUID(msb, lsb));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Parse UUID to bytes. The returned value is shortest representation, a 16-bit, 32-bit or
|
||
|
|
* 128-bit UUID, Note returned value is little endian (Bluetooth).
|
||
|
|
*
|
||
|
|
* @param uuid uuid to parse.
|
||
|
|
* @return shortest representation of {@code uuid} as bytes.
|
||
|
|
* @throws IllegalArgumentException If the {@code uuid} is null.
|
||
|
|
* @hide
|
||
|
|
*/
|
||
|
|
public static byte[] uuidToBytes(ParcelUuid uuid) {
|
||
|
|
if (uuid == null) {
|
||
|
|
throw new IllegalArgumentException("uuid cannot be null");
|
||
|
|
}
|
||
|
|
|
||
|
|
if (is16BitUuid(uuid)) {
|
||
|
|
byte[] uuidBytes = new byte[UUID_BYTES_16_BIT];
|
||
|
|
int uuidVal = getServiceIdentifierFromParcelUuid(uuid);
|
||
|
|
uuidBytes[0] = (byte) (uuidVal & 0xFF);
|
||
|
|
uuidBytes[1] = (byte) ((uuidVal & 0xFF00) >> 8);
|
||
|
|
return uuidBytes;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (is32BitUuid(uuid)) {
|
||
|
|
byte[] uuidBytes = new byte[UUID_BYTES_32_BIT];
|
||
|
|
int uuidVal = getServiceIdentifierFromParcelUuid(uuid);
|
||
|
|
uuidBytes[0] = (byte) (uuidVal & 0xFF);
|
||
|
|
uuidBytes[1] = (byte) ((uuidVal & 0xFF00) >> 8);
|
||
|
|
uuidBytes[2] = (byte) ((uuidVal & 0xFF0000) >> 16);
|
||
|
|
uuidBytes[3] = (byte) ((uuidVal & 0xFF000000) >> 24);
|
||
|
|
return uuidBytes;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Construct a 128 bit UUID.
|
||
|
|
long msb = uuid.getUuid().getMostSignificantBits();
|
||
|
|
long lsb = uuid.getUuid().getLeastSignificantBits();
|
||
|
|
|
||
|
|
byte[] uuidBytes = new byte[UUID_BYTES_128_BIT];
|
||
|
|
ByteBuffer buf = ByteBuffer.wrap(uuidBytes).order(ByteOrder.LITTLE_ENDIAN);
|
||
|
|
buf.putLong(8, msb);
|
||
|
|
buf.putLong(0, lsb);
|
||
|
|
return uuidBytes;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Check whether the given parcelUuid can be converted to 16 bit bluetooth uuid.
|
||
|
|
*
|
||
|
|
* @return true if the parcelUuid can be converted to 16 bit uuid, false otherwise.
|
||
|
|
* @hide
|
||
|
|
*/
|
||
|
|
@UnsupportedAppUsage
|
||
|
|
public static boolean is16BitUuid(ParcelUuid parcelUuid) {
|
||
|
|
UUID uuid = parcelUuid.getUuid();
|
||
|
|
if (uuid.getLeastSignificantBits() != BASE_UUID.getUuid().getLeastSignificantBits()) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
return ((uuid.getMostSignificantBits() & 0xFFFF0000FFFFFFFFL) == 0x1000L);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Check whether the given parcelUuid can be converted to 32 bit bluetooth uuid.
|
||
|
|
*
|
||
|
|
* @return true if the parcelUuid can be converted to 32 bit uuid, false otherwise.
|
||
|
|
* @hide
|
||
|
|
*/
|
||
|
|
@UnsupportedAppUsage
|
||
|
|
public static boolean is32BitUuid(ParcelUuid parcelUuid) {
|
||
|
|
UUID uuid = parcelUuid.getUuid();
|
||
|
|
if (uuid.getLeastSignificantBits() != BASE_UUID.getUuid().getLeastSignificantBits()) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
if (is16BitUuid(parcelUuid)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
return ((uuid.getMostSignificantBits() & 0xFFFFFFFFL) == 0x1000L);
|
||
|
|
}
|
||
|
|
|
||
|
|
private BluetoothUuid() {}
|
||
|
|
}
|