core/java/android/security/keymaster/OperationResult.java

/*
 * Copyright (C) 2015 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.security.keymaster;

import android.annotation.UnsupportedAppUsage;
import android.os.IBinder;
import android.os.Parcel;
import android.os.Parcelable;

/**
 * Class for handling the parceling of return values from keymaster crypto operations
 * (begin/update/finish).
 * @hide
 */
public class OperationResult implements Parcelable {
    public final int resultCode;
    public final IBinder token;
    public final long operationHandle;
    public final int inputConsumed;
    public final byte[] output;
    public final KeymasterArguments outParams;

    @UnsupportedAppUsage
    public static final @android.annotation.NonNull Parcelable.Creator<OperationResult> CREATOR = new
            Parcelable.Creator<OperationResult>() {
                @Override
                public OperationResult createFromParcel(Parcel in) {
                    return new OperationResult(in);
                }

                @Override
                public OperationResult[] newArray(int length) {
                    return new OperationResult[length];
                }
            };

    public OperationResult(
            int resultCode, IBinder token, long operationHandle, int inputConsumed, byte[] output,
            KeymasterArguments outParams) {
        this.resultCode = resultCode;
        this.token = token;
        this.operationHandle = operationHandle;
        this.inputConsumed = inputConsumed;
        this.output = output;
        this.outParams = outParams;
    }

    public OperationResult(int resultCode) {
        this(resultCode, null, 0, 0, null, null);
    }

    protected OperationResult(Parcel in) {
        resultCode = in.readInt();
        token = in.readStrongBinder();
        operationHandle = in.readLong();
        inputConsumed = in.readInt();
        output = in.createByteArray();
        outParams = KeymasterArguments.CREATOR.createFromParcel(in);
    }

    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel out, int flags) {
        out.writeInt(resultCode);
        out.writeStrongBinder(token);
        out.writeLong(operationHandle);
        out.writeInt(inputConsumed);
        out.writeByteArray(output);
        outParams.writeToParcel(out, flags);
    }
}