1 files changed, 76 insertions, 0 deletions
diff --git a/src/java/com/android/ike/ikev2/message/IkeVendorPayload.java b/src/java/com/android/ike/ikev2/message/IkeVendorPayload.java
new file mode 100644
index 00000000..85996535
--- /dev/null
+++ b/src/java/com/android/ike/ikev2/message/IkeVendorPayload.java
@@ -0,0 +1,76 @@
+/*
+ * 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.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 ID Payload";
+    }
+}