| /* |
| * 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 com.android.ike.ikev2.exceptions; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * This exception is thrown when payload type is not supported and critical bit is set |
| * |
| * <p>Include UNSUPPORTED_CRITICAL_PAYLOAD Notify payloads in a response message. Each payload |
| * contains only one payload type. |
| * |
| * @see <a href="https://tools.ietf.org/html/rfc7296#section-2.5">RFC 7296, Internet Key Exchange |
| * Protocol Version 2 (IKEv2)</a> |
| */ |
| public final class UnsupportedCriticalPayloadException extends IkeProtocolException { |
| private static final int EXPECTED_ERROR_DATA_LEN = 1; |
| |
| public final List<Integer> payloadTypeList; |
| |
| /** |
| * Construct an instance of UnsupportedCriticalPayloadException. |
| * |
| * <p>To keep IkeProtocolException simpler, we only pass the first payload type to the |
| * superclass which can be retrieved by users. |
| * |
| * @param payloadList the list of all unsupported critical payload types. |
| */ |
| public UnsupportedCriticalPayloadException(List<Integer> payloadList) { |
| super( |
| ERROR_TYPE_UNSUPPORTED_CRITICAL_PAYLOAD, |
| integerToByteArray(payloadList.get(0), EXPECTED_ERROR_DATA_LEN)); |
| payloadTypeList = payloadList; |
| } |
| |
| /** |
| * Construct a instance of UnsupportedCriticalPayloadException from a notify payload. |
| * |
| * @param notifyData the notify data included in the payload. |
| */ |
| public UnsupportedCriticalPayloadException(byte[] notifyData) { |
| super(ERROR_TYPE_UNSUPPORTED_CRITICAL_PAYLOAD, notifyData); |
| payloadTypeList = new ArrayList<>(1); |
| payloadTypeList.add(byteArrayToInteger(notifyData)); |
| } |
| |
| /** |
| * Return the all the unsupported critical payloads included in this exception. |
| * |
| * @return the unsupported critical payload list. |
| */ |
| public List<Integer> getUnsupportedCriticalPayloadList() { |
| return payloadTypeList; |
| } |
| |
| @Override |
| protected boolean isValidDataLength(int dataLen) { |
| return EXPECTED_ERROR_DATA_LEN == dataLen; |
| } |
| } |