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Commit fe9e4d7a authored by Rahul Sabnis's avatar Rahul Sabnis Committed by Automerger Merge Worker
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Merge "Address API council feedback on GATT API changes." am: 56ddf94a am:... 

Merge "Address API council feedback on GATT API changes." am: 56ddf94a am: f387f744 am: 45840994

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2030693

Change-Id: Ia4e5d5503f7708c3749456ee408119025c30f9b8
parents 880c8807 45840994

android/app/src/com/android/bluetooth/gatt/GattService.java

+63 −51
Original line number Diff line number Diff line
@@ -16,7 +16,7 @@ 


package com.android.bluetooth.gatt;



import static android.content.pm.PackageManager.PERMISSION_GRANTED;

import static com.android.bluetooth.Utils.enforceBluetoothPrivilegedPermission;



import android.annotation.RequiresPermission;

import android.annotation.SuppressLint;
@@ -52,6 +52,7 @@ import android.content.AttributionSource; 
import android.content.Intent;

import android.net.MacAddress;

import android.os.Binder;

import android.os.Build;

import android.os.Handler;

import android.os.IBinder;

import android.os.Message;
@@ -424,40 +425,37 @@ public class GattService extends ProfileService { 
        sGattService = instance;

    }



    // Suppressed since we're not actually enforcing here

    // Suppressed because we are conditionally enforcing

    @SuppressLint("AndroidFrameworkRequiresPermission")

    private boolean permissionCheck(UUID characteristicUuid) {

        return !isHidCharUuid(characteristicUuid)

                || (checkCallingOrSelfPermission(BLUETOOTH_PRIVILEGED)

                        == PERMISSION_GRANTED);

    private void permissionCheck(UUID characteristicUuid) {

        if (!isHidCharUuid(characteristicUuid)) {

            return;

        }

        enforceBluetoothPrivilegedPermission(this);

    }



    // Suppressed since we're not actually enforcing here

    // Suppressed because we are conditionally enforcing

    @SuppressLint("AndroidFrameworkRequiresPermission")

    private boolean permissionCheck(int connId, int handle) {

        Set<Integer> restrictedHandles = mRestrictedHandles.get(connId);

        if (restrictedHandles == null || !restrictedHandles.contains(handle)) {

            return true;

    private void permissionCheck(int connId, int handle) {

        if (!isHandleRestricted(connId, handle)) {

            return;

        }



        return (checkCallingOrSelfPermission(BLUETOOTH_PRIVILEGED)

                == PERMISSION_GRANTED);

        enforceBluetoothPrivilegedPermission(this);

    }



    // Suppressed since we're not actually enforcing here

    // Suppressed because we are conditionally enforcing

    @SuppressLint("AndroidFrameworkRequiresPermission")

    private boolean permissionCheck(ClientMap.App app, int connId, int handle) {

        Set<Integer> restrictedHandles = mRestrictedHandles.get(connId);

        if (restrictedHandles == null || !restrictedHandles.contains(handle)) {

            return true;

    private void permissionCheck(ClientMap.App app, int connId, int handle) {

        if (!isHandleRestricted(connId, handle) || app.hasBluetoothPrivilegedPermission) {

            return;

        }



        if (!app.hasBluetoothPrivilegedPermission

                && checkCallingOrSelfPermission(BLUETOOTH_PRIVILEGED)== PERMISSION_GRANTED) {

        enforceBluetoothPrivilegedPermission(this);

        app.hasBluetoothPrivilegedPermission = true;

    }



        return app.hasBluetoothPrivilegedPermission;

    private boolean isHandleRestricted(int connId, int handle) {

        Set<Integer> restrictedHandles = mRestrictedHandles.get(connId);

        return restrictedHandles != null && restrictedHandles.contains(handle);

    }



    @Override
@@ -2299,7 +2297,13 @@ public class GattService extends ProfileService { 


        ClientMap.App app = mClientMap.getByConnId(connId);

        if (app != null) {

            if (!permissionCheck(app, connId, handle)) {

            try {

                permissionCheck(connId, handle);

            } catch (SecurityException ex) {

                // Only throws on T+ as this is an older API and did not throw prior to T

                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {

                    throw ex;

                }

                Log.w(TAG, "onNotify() - permission check failed!");

                return;

            }
@@ -3257,7 +3261,7 @@ public class GattService extends ProfileService { 
                this, attributionSource, "GattService getOwnAddress")) {

            return;

        }

        enforcePrivilegedPermission();

        enforceBluetoothPrivilegedPermission(this);

        mAdvertiseManager.getOwnAddress(advertiserId);

    }
@@ -3541,7 +3545,13 @@ public class GattService extends ProfileService { 
            return;

        }



        if (!permissionCheck(connId, handle)) {

        try {

            permissionCheck(connId, handle);

        } catch (SecurityException ex) {

            // Only throws on T+ as this is an older API and did not throw prior to T

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {

                throw ex;

            }

            Log.w(TAG, "readCharacteristic() - permission check failed!");

            return;

        }
@@ -3567,7 +3577,13 @@ public class GattService extends ProfileService { 
            return;

        }



        if (!permissionCheck(uuid)) {

        try {

            permissionCheck(uuid);

        } catch (SecurityException ex) {

            // Only throws on T+ as this is an older API and did not throw prior to T

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {

                throw ex;

            }

            Log.w(TAG, "readUsingCharacteristicUuid() - permission check failed!");

            return;

        }
@@ -3597,11 +3613,7 @@ public class GattService extends ProfileService { 
            Log.e(TAG, "writeCharacteristic() - No connection for " + address + "...");

            return BluetoothStatusCodes.ERROR_DEVICE_NOT_CONNECTED;

        }



        if (!permissionCheck(connId, handle)) {

            Log.w(TAG, "writeCharacteristic() - permission check failed!");

            return BluetoothStatusCodes.ERROR_MISSING_BLUETOOTH_PRIVILEGED_PERMISSION;

        }

        permissionCheck(connId, handle);



        Log.d(TAG, "writeCharacteristic() - trying to acquire permit.");

        // Lock the thread until onCharacteristicWrite callback comes back.
@@ -3642,7 +3654,13 @@ public class GattService extends ProfileService { 
            return;

        }



        if (!permissionCheck(connId, handle)) {

        try {

            permissionCheck(connId, handle);

        } catch (SecurityException ex) {

            // Only throws on T+ as this is an older API and did not throw prior to T

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {

                throw ex;

            }

            Log.w(TAG, "readDescriptor() - permission check failed!");

            return;

        }
@@ -3666,11 +3684,7 @@ public class GattService extends ProfileService { 
            Log.e(TAG, "writeDescriptor() - No connection for " + address + "...");

            return BluetoothStatusCodes.ERROR_DEVICE_NOT_CONNECTED;

        }



        if (!permissionCheck(connId, handle)) {

            Log.w(TAG, "writeDescriptor() - permission check failed!");

            return BluetoothStatusCodes.ERROR_MISSING_BLUETOOTH_PRIVILEGED_PERMISSION;

        }

        permissionCheck(connId, handle);



        gattClientWriteDescriptorNative(connId, handle, authReq, value);

        return BluetoothStatusCodes.SUCCESS;
@@ -3726,7 +3740,13 @@ public class GattService extends ProfileService { 
            return;

        }



        if (!permissionCheck(connId, handle)) {

        try {

            permissionCheck(connId, handle);

        } catch (SecurityException ex) {

            // Only throws on T+ as this is an older API and did not throw prior to T

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {

                throw ex;

            }

            Log.w(TAG, "registerForNotification() - permission check failed!");

            return;

        }
@@ -4451,25 +4471,17 @@ public class GattService extends ProfileService { 
                            == BluetoothDevice.ADDRESS_TYPE_PUBLIC && filter.getIrk() == null) {

                        // Do not enforce

                    } else {

                        enforcePrivilegedPermission();

                    }

                        enforceBluetoothPrivilegedPermission(this);

                    }

                }

            }

        }



    // Enforce caller has BLUETOOTH_PRIVILEGED permission. A {@link SecurityException} will be

    // thrown if the caller app does not have BLUETOOTH_PRIVILEGED permission.

    @RequiresPermission(android.Manifest.permission.BLUETOOTH_PRIVILEGED)

    private void enforcePrivilegedPermission() {

        enforceCallingOrSelfPermission(BLUETOOTH_PRIVILEGED,

                "Need BLUETOOTH_PRIVILEGED permission");

    }



    @SuppressLint("AndroidFrameworkRequiresPermission")

    private void enforcePrivilegedPermissionIfNeeded(ScanSettings settings) {

        if (needsPrivilegedPermissionForScan(settings)) {

            enforcePrivilegedPermission();

            enforceBluetoothPrivilegedPermission(this);

        }

    }

framework/api/current.txt

+0 −1
Original line number Diff line number Diff line
@@ -1061,7 +1061,6 @@ package android.bluetooth { 
    field public static final int ERROR_GATT_WRITE_NOT_ALLOWED = 200; // 0xc8

    field public static final int ERROR_GATT_WRITE_REQUEST_BUSY = 201; // 0xc9

    field public static final int ERROR_MISSING_BLUETOOTH_CONNECT_PERMISSION = 6; // 0x6

    field public static final int ERROR_MISSING_BLUETOOTH_PRIVILEGED_PERMISSION = 8; // 0x8

    field public static final int ERROR_PROFILE_SERVICE_NOT_BOUND = 9; // 0x9

    field public static final int ERROR_UNKNOWN = 2147483647; // 0x7fffffff

    field public static final int FEATURE_NOT_SUPPORTED = 11; // 0xb

framework/java/android/bluetooth/BluetoothGatt.java

+6 −13
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ import android.annotation.NonNull; 
import android.annotation.RequiresNoPermission;

import android.annotation.RequiresPermission;

import android.annotation.SuppressLint;

import android.bluetooth.BluetoothGattCharacteristic.WriteType;

import android.bluetooth.annotations.RequiresBluetoothConnectPermission;

import android.bluetooth.annotations.RequiresLegacyBluetoothPermission;

import android.compat.annotation.UnsupportedAppUsage;
@@ -423,9 +424,6 @@ public final class BluetoothGatt implements BluetoothProfile { 
                                if (status == 0) characteristic.setValue(value);

                                callback.onCharacteristicRead(BluetoothGatt.this, characteristic,

                                        value, status);

                                // Keep calling deprecated callback to maintain app compatibility

                                callback.onCharacteristicRead(BluetoothGatt.this, characteristic,

                                        status);

                            }

                        }

                    });
@@ -526,9 +524,6 @@ public final class BluetoothGatt implements BluetoothProfile { 
                                characteristic.setValue(value);

                                callback.onCharacteristicChanged(BluetoothGatt.this,

                                        characteristic, value);

                                // Keep calling deprecated callback to maintain app compatibility

                                callback.onCharacteristicChanged(BluetoothGatt.this,

                                        characteristic);

                            }

                        }

                    });
@@ -585,8 +580,6 @@ public final class BluetoothGatt implements BluetoothProfile { 
                                if (status == 0) descriptor.setValue(value);

                                callback.onDescriptorRead(BluetoothGatt.this, descriptor, status,

                                        value);

                                // Keep calling deprecated callback to maintain app compatibility

                                callback.onDescriptorRead(BluetoothGatt.this, descriptor, status);

                            }

                        }

                    });
@@ -1305,7 +1298,6 @@ public final class BluetoothGatt implements BluetoothProfile { 
        return true;

    }





    /**

     * Writes a given characteristic and its values to the associated remote device.

     *
@@ -1318,7 +1310,8 @@ public final class BluetoothGatt implements BluetoothProfile { 
     * @throws IllegalArgumentException if characteristic or its value are null

     *

     * @deprecated Use {@link BluetoothGatt#writeCharacteristic(BluetoothGattCharacteristic, byte[],

     * int)} as this is not memory safe.

     * int)} as this is not memory safe because it relies on a {@link BluetoothGattCharacteristic}

     * object whose underlying fields are subject to change outside this method.

     */

    @Deprecated

    @RequiresLegacyBluetoothPermission
@@ -1338,7 +1331,6 @@ public final class BluetoothGatt implements BluetoothProfile { 
    @IntDef(value = {

            BluetoothStatusCodes.SUCCESS,

            BluetoothStatusCodes.ERROR_MISSING_BLUETOOTH_CONNECT_PERMISSION,

            BluetoothStatusCodes.ERROR_MISSING_BLUETOOTH_PRIVILEGED_PERMISSION,

            BluetoothStatusCodes.ERROR_DEVICE_NOT_CONNECTED,

            BluetoothStatusCodes.ERROR_PROFILE_SERVICE_NOT_BOUND,

            BluetoothStatusCodes.ERROR_GATT_WRITE_NOT_ALLOWED,
@@ -1362,7 +1354,7 @@ public final class BluetoothGatt implements BluetoothProfile { 
    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)

    @WriteOperationReturnValues

    public int writeCharacteristic(@NonNull BluetoothGattCharacteristic characteristic,

            @NonNull byte[] value, int writeType) {

            @NonNull byte[] value, @WriteType int writeType) {

        if (characteristic == null) {

            throw new IllegalArgumentException("characteristic must not be null");

        }
@@ -1487,7 +1479,8 @@ public final class BluetoothGatt implements BluetoothProfile { 
     * @throws IllegalArgumentException if descriptor or its value are null

     *

     * @deprecated Use {@link BluetoothGatt#writeDescriptor(BluetoothGattDescriptor, byte[])} as

     * this is not memory safe.

     * this is not memory safe because it relies on a {@link BluetoothGattDescriptor} object

     * whose underlying fields are subject to change outside this method.

     */

    @Deprecated

    @RequiresLegacyBluetoothPermission

framework/java/android/bluetooth/BluetoothGattCallback.java

+3 −0
Original line number Diff line number Diff line
@@ -105,6 +105,7 @@ public abstract class BluetoothGattCallback { 
     */

    public void onCharacteristicRead(@NonNull BluetoothGatt gatt, @NonNull

            BluetoothGattCharacteristic characteristic, @NonNull byte[] value, int status) {

        onCharacteristicRead(gatt, characteristic, status);

    }



    /**
@@ -155,6 +156,7 @@ public abstract class BluetoothGattCallback { 
     */

    public void onCharacteristicChanged(@NonNull BluetoothGatt gatt,

            @NonNull BluetoothGattCharacteristic characteristic, @NonNull byte[] value) {

        onCharacteristicChanged(gatt, characteristic);

    }



    /**
@@ -184,6 +186,7 @@ public abstract class BluetoothGattCallback { 
     */

    public void onDescriptorRead(@NonNull BluetoothGatt gatt,

            @NonNull BluetoothGattDescriptor descriptor, int status, @NonNull byte[] value) {

        onDescriptorRead(gatt, descriptor, status);

    }



    /**

framework/java/android/bluetooth/BluetoothGattCharacteristic.java

+13 −1
Original line number Diff line number Diff line
@@ -15,11 +15,14 @@ 
 */

package android.bluetooth;



import android.annotation.IntDef;

import android.compat.annotation.UnsupportedAppUsage;

import android.os.Parcel;

import android.os.ParcelUuid;

import android.os.Parcelable;



import java.lang.annotation.Retention;

import java.lang.annotation.RetentionPolicy;

import java.util.ArrayList;

import java.util.List;

import java.util.UUID;
@@ -115,8 +118,17 @@ public class BluetoothGattCharacteristic implements Parcelable { 
     */

    public static final int PERMISSION_WRITE_SIGNED_MITM = 0x100;



    /** @hide */

    @Retention(RetentionPolicy.SOURCE)

    @IntDef(prefix = "WRITE_TYPE_", value = {

            WRITE_TYPE_DEFAULT,

            WRITE_TYPE_NO_RESPONSE,

            WRITE_TYPE_SIGNED

    })

    public @interface WriteType{}



    /**

     * Write characteristic, requesting acknoledgement by the remote device

     * Write characteristic, requesting acknowledgement by the remote device

     */

    public static final int WRITE_TYPE_DEFAULT = 0x02;