1 /* 2 * Copyright (C) 2021 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.net.vcn.persistablebundleutils; 18 19 import static com.android.internal.annotations.VisibleForTesting.Visibility; 20 21 import android.annotation.NonNull; 22 import android.net.ipsec.ike.ChildSaProposal; 23 import android.os.PersistableBundle; 24 25 import com.android.internal.annotations.VisibleForTesting; 26 import com.android.server.vcn.util.PersistableBundleUtils; 27 28 import java.util.List; 29 import java.util.Objects; 30 31 /** 32 * Provides utility methods to convert ChildSaProposal to/from PersistableBundle. 33 * 34 * @hide 35 */ 36 @VisibleForTesting(visibility = Visibility.PRIVATE) 37 public final class ChildSaProposalUtils extends SaProposalUtilsBase { 38 /** Serializes a ChildSaProposal to a PersistableBundle. */ 39 @NonNull toPersistableBundle(ChildSaProposal proposal)40 public static PersistableBundle toPersistableBundle(ChildSaProposal proposal) { 41 return SaProposalUtilsBase.toPersistableBundle(proposal); 42 } 43 44 /** Constructs a ChildSaProposal by deserializing a PersistableBundle. */ 45 @NonNull fromPersistableBundle(@onNull PersistableBundle in)46 public static ChildSaProposal fromPersistableBundle(@NonNull PersistableBundle in) { 47 Objects.requireNonNull(in, "PersistableBundle was null"); 48 49 final ChildSaProposal.Builder builder = new ChildSaProposal.Builder(); 50 51 final PersistableBundle encryptionBundle = in.getPersistableBundle(ENCRYPT_ALGO_KEY); 52 Objects.requireNonNull(encryptionBundle, "Encryption algo bundle was null"); 53 final List<EncryptionAlgoKeyLenPair> encryptList = 54 PersistableBundleUtils.toList(encryptionBundle, EncryptionAlgoKeyLenPair::new); 55 for (EncryptionAlgoKeyLenPair t : encryptList) { 56 builder.addEncryptionAlgorithm(t.encryptionAlgo, t.keyLen); 57 } 58 59 final int[] integrityAlgoIdArray = in.getIntArray(INTEGRITY_ALGO_KEY); 60 Objects.requireNonNull(integrityAlgoIdArray, "Integrity algo array was null"); 61 for (int algo : integrityAlgoIdArray) { 62 builder.addIntegrityAlgorithm(algo); 63 } 64 65 final int[] dhGroupArray = in.getIntArray(DH_GROUP_KEY); 66 Objects.requireNonNull(dhGroupArray, "DH Group array was null"); 67 for (int dh : dhGroupArray) { 68 builder.addDhGroup(dh); 69 } 70 71 return builder.build(); 72 } 73 } 74