| /* |
| * 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.Parcel; |
| import android.os.Parcelable; |
| |
| import java.math.BigInteger; |
| import java.util.ArrayList; |
| import java.util.Date; |
| import java.util.List; |
| |
| /** |
| * @hide |
| */ |
| public class KeyCharacteristics implements Parcelable { |
| public KeymasterArguments swEnforced; |
| public KeymasterArguments hwEnforced; |
| |
| public static final Parcelable.Creator<KeyCharacteristics> CREATOR = |
| new Parcelable.Creator<KeyCharacteristics>() { |
| @Override |
| public KeyCharacteristics createFromParcel(Parcel in) { |
| return new KeyCharacteristics(in); |
| } |
| |
| @Override |
| public KeyCharacteristics[] newArray(int length) { |
| return new KeyCharacteristics[length]; |
| } |
| }; |
| |
| @UnsupportedAppUsage |
| public KeyCharacteristics() {} |
| |
| protected KeyCharacteristics(Parcel in) { |
| readFromParcel(in); |
| } |
| |
| @Override |
| public int describeContents() { |
| return 0; |
| } |
| |
| @Override |
| public void writeToParcel(Parcel out, int flags) { |
| swEnforced.writeToParcel(out, flags); |
| hwEnforced.writeToParcel(out, flags); |
| } |
| |
| @UnsupportedAppUsage |
| public void readFromParcel(Parcel in) { |
| swEnforced = KeymasterArguments.CREATOR.createFromParcel(in); |
| hwEnforced = KeymasterArguments.CREATOR.createFromParcel(in); |
| } |
| |
| /** |
| * Returns the value of the specified enum tag or {@code defaultValue} if the tag is not |
| * present. |
| * |
| * @throws IllegalArgumentException if {@code tag} is not an enum tag. |
| */ |
| public Integer getEnum(int tag) { |
| if (hwEnforced.containsTag(tag)) { |
| return hwEnforced.getEnum(tag, -1); |
| } else if (swEnforced.containsTag(tag)) { |
| return swEnforced.getEnum(tag, -1); |
| } else { |
| return null; |
| } |
| } |
| |
| /** |
| * Returns all values of the specified repeating enum tag. |
| * |
| * throws IllegalArgumentException if {@code tag} is not a repeating enum tag. |
| */ |
| public List<Integer> getEnums(int tag) { |
| List<Integer> result = new ArrayList<Integer>(); |
| result.addAll(hwEnforced.getEnums(tag)); |
| result.addAll(swEnforced.getEnums(tag)); |
| return result; |
| } |
| |
| /** |
| * Returns the value of the specified unsigned 32-bit int tag or {@code defaultValue} if the tag |
| * is not present. |
| * |
| * @throws IllegalArgumentException if {@code tag} is not an unsigned 32-bit int tag. |
| */ |
| public long getUnsignedInt(int tag, long defaultValue) { |
| if (hwEnforced.containsTag(tag)) { |
| return hwEnforced.getUnsignedInt(tag, defaultValue); |
| } else { |
| return swEnforced.getUnsignedInt(tag, defaultValue); |
| } |
| } |
| |
| /** |
| * Returns all values of the specified repeating unsigned 64-bit long tag. |
| * |
| * @throws IllegalArgumentException if {@code tag} is not a repeating unsigned 64-bit long tag. |
| */ |
| public List<BigInteger> getUnsignedLongs(int tag) { |
| List<BigInteger> result = new ArrayList<BigInteger>(); |
| result.addAll(hwEnforced.getUnsignedLongs(tag)); |
| result.addAll(swEnforced.getUnsignedLongs(tag)); |
| return result; |
| } |
| |
| /** |
| * Returns the value of the specified date tag or {@code null} if the tag is not present. |
| * |
| * @throws IllegalArgumentException if {@code tag} is not a date tag or if the tag's value |
| * represents a time instant which is after {@code 2^63 - 1} milliseconds since Unix |
| * epoch. |
| */ |
| public Date getDate(int tag) { |
| Date result = swEnforced.getDate(tag, null); |
| if (result != null) { |
| return result; |
| } |
| return hwEnforced.getDate(tag, null); |
| } |
| |
| /** |
| * Returns {@code true} if the provided boolean tag is present, {@code false} if absent. |
| * |
| * @throws IllegalArgumentException if {@code tag} is not a boolean tag. |
| */ |
| public boolean getBoolean(int tag) { |
| if (hwEnforced.containsTag(tag)) { |
| return hwEnforced.getBoolean(tag); |
| } else { |
| return swEnforced.getBoolean(tag); |
| } |
| } |
| } |
| |