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      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.security.keymaster;
     18 
     19 import android.os.IBinder;
     20 import android.os.Parcel;
     21 import android.os.Parcelable;
     22 
     23 /**
     24  * Class for handling the parceling of return values from keymaster crypto operations
     25  * (begin/update/finish).
     26  * @hide
     27  */
     28 public class OperationResult implements Parcelable {
     29     public final int resultCode;
     30     public final IBinder token;
     31     public final long operationHandle;
     32     public final int inputConsumed;
     33     public final byte[] output;
     34     public final KeymasterArguments outParams;
     35 
     36     public static final Parcelable.Creator<OperationResult> CREATOR = new
     37             Parcelable.Creator<OperationResult>() {
     38                 @Override
     39                 public OperationResult createFromParcel(Parcel in) {
     40                     return new OperationResult(in);
     41                 }
     42 
     43                 @Override
     44                 public OperationResult[] newArray(int length) {
     45                     return new OperationResult[length];
     46                 }
     47             };
     48 
     49     public OperationResult(
     50             int resultCode, IBinder token, long operationHandle, int inputConsumed, byte[] output,
     51             KeymasterArguments outParams) {
     52         this.resultCode = resultCode;
     53         this.token = token;
     54         this.operationHandle = operationHandle;
     55         this.inputConsumed = inputConsumed;
     56         this.output = output;
     57         this.outParams = outParams;
     58     }
     59 
     60     protected OperationResult(Parcel in) {
     61         resultCode = in.readInt();
     62         token = in.readStrongBinder();
     63         operationHandle = in.readLong();
     64         inputConsumed = in.readInt();
     65         output = in.createByteArray();
     66         outParams = KeymasterArguments.CREATOR.createFromParcel(in);
     67     }
     68 
     69     @Override
     70     public int describeContents() {
     71         return 0;
     72     }
     73 
     74     @Override
     75     public void writeToParcel(Parcel out, int flags) {
     76         out.writeInt(resultCode);
     77         out.writeStrongBinder(token);
     78         out.writeLong(operationHandle);
     79         out.writeInt(inputConsumed);
     80         out.writeByteArray(output);
     81         outParams.writeToParcel(out, flags);
     82     }
     83 }
     84