| /* |
| * Copyright (C) 2018 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.net.ipsec.ike.exceptions; |
| |
| import android.annotation.NonNull; |
| import android.net.ipsec.ike.ChildSessionCallback; |
| import android.net.ipsec.ike.IkeSessionCallback; |
| |
| /** |
| * This exception is thrown if a SA proposal negotiation failed. |
| * |
| * <p>This exception indicates that either none of SA proposals from caller is acceptable or the |
| * negotiated SA proposal from the remote server is invalid. |
| * |
| * @see <a href="https://tools.ietf.org/html/rfc7296#section-2.7">RFC 7296, Internet Key Exchange |
| * Protocol Version 2 (IKEv2)</a> |
| */ |
| // Include the NO_PROPOSAL_CHOSEN Notify payload in an encrypted response message if received |
| // message is an encrypted request from SA initiator. |
| public final class NoValidProposalChosenException extends IkeProtocolException { |
| private static final int EXPECTED_ERROR_DATA_LEN = 0; |
| |
| /** |
| * Construct an instance of NoValidProposalChosenException. |
| * |
| * <p>Except for testing, IKE library users normally do not instantiate this object themselves |
| * but instead get a reference via {@link IkeSessionCallback} or {@link ChildSessionCallback}. |
| * |
| * @param message the descriptive message (which is saved for later retrieval by the {@link |
| * #getMessage()} method). |
| */ |
| public NoValidProposalChosenException(@NonNull String message) { |
| super(ERROR_TYPE_NO_PROPOSAL_CHOSEN, message); |
| } |
| |
| /** |
| * Construct an instance of NoValidProposalChosenException. |
| * |
| * <p>Except for testing, IKE library users normally do not instantiate this object themselves |
| * but instead get a reference via {@link IkeSessionCallback} or {@link ChildSessionCallback}. |
| * |
| * @param message the descriptive message (which is saved for later retrieval by the {@link |
| * #getMessage()} method). |
| * @param cause the cause (which is saved for later retrieval by the {@link #getCause()} |
| * method). |
| */ |
| public NoValidProposalChosenException(@NonNull String message, @NonNull Throwable cause) { |
| super(ERROR_TYPE_NO_PROPOSAL_CHOSEN, cause); |
| } |
| |
| /** |
| * Construct a instance of NoValidProposalChosenException from a notify payload. |
| * |
| * @param notifyData the notify data included in the payload. |
| * @hide |
| */ |
| public NoValidProposalChosenException(byte[] notifyData) { |
| super(ERROR_TYPE_NO_PROPOSAL_CHOSEN, notifyData); |
| } |
| |
| /** @hide */ |
| @Override |
| protected boolean isValidDataLength(int dataLen) { |
| return EXPECTED_ERROR_DATA_LEN == dataLen; |
| } |
| } |