| /* |
| * 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.internal.net.ipsec.ike.message; |
| |
| import java.nio.ByteBuffer; |
| |
| /** |
| * IkeVendorPayload represents a Vendor ID payload |
| * |
| * <p>Vendor ID allows a vendor to experiment with new features. This implementation doesn't have |
| * support for any specific Vendor IDs. |
| * |
| * <p>Critical bit must be ignored when doing decoding. |
| * |
| * @see <a href="https://tools.ietf.org/html/rfc7296#page-105">RFC 7296, Internet Key Exchange |
| * Protocol Version 2 (IKEv2)</a> |
| */ |
| public final class IkeVendorPayload extends IkePayload { |
| public final byte[] vendorId; |
| |
| /** |
| * Construct an instance of IkeVendorPayload in the context of {@link IkePayloadFactory}. |
| * |
| * @param critical indicates if it is a critical payload. |
| * @param payloadBody the vendor ID. |
| */ |
| IkeVendorPayload(boolean critical, byte[] payloadBody) { |
| super(PAYLOAD_TYPE_VENDOR, critical); |
| vendorId = payloadBody; |
| } |
| |
| /** |
| * Throw an Exception when trying to encode this payload. |
| * |
| * @throws UnsupportedOperationException for this payload. |
| */ |
| @Override |
| protected void encodeToByteBuffer(@PayloadType int nextPayload, ByteBuffer byteBuffer) { |
| throw new UnsupportedOperationException( |
| "It is not supported to encode a " + getTypeString()); |
| } |
| |
| /** |
| * Get entire payload length. |
| * |
| * @return entire payload length. |
| */ |
| @Override |
| protected int getPayloadLength() { |
| return GENERIC_HEADER_LENGTH + vendorId.length; |
| } |
| |
| /** |
| * Return the payload type as a String. |
| * |
| * @return the payload type as a String. |
| */ |
| @Override |
| public String getTypeString() { |
| return "Vendor"; |
| } |
| } |