IEEE 802.1x EAPOL-MKA packet support.

Change-Id: I61bc45226d5b84445d4fafa969150c4a707ab3bc
(cherry picked from commit 7cd5ff66764505e9c8688af8cb96fa4f089dcf3e)
diff --git a/utils/misc/src/main/java/org/onlab/packet/EAPOLMkpduParameterSet.java b/utils/misc/src/main/java/org/onlab/packet/EAPOLMkpduParameterSet.java
new file mode 100644
index 0000000..ba630d2
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+++ b/utils/misc/src/main/java/org/onlab/packet/EAPOLMkpduParameterSet.java
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+/*
+ * Copyright 2017-present Open Networking Laboratory
+ *
+ * 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 org.onlab.packet;
+
+/**
+ * Class representing EAPOL MKPDU Parameter Set.
+ * IEEE 802.1X Clause 11; Figure 11-7, Table 11-6
+ */
+public interface EAPOLMkpduParameterSet {
+    // Parameter Set Types.
+    public static final byte PARAMETERSET_TYPE_BASIC = 0;
+    public static final byte PARAMETERSET_TYPE_LIVE_PEER_LIST = 1;
+    public static final byte PARAMETERSET_TYPE_POTENTIAL_PEER_LIST = 2;
+    public static final byte PARAMETERSET_TYPE_MACSEC_SAK_USE = 3;
+    public static final byte PARAMETERSET_TYPE_DISTRIBUTED_SAK = 4;
+    public static final byte PARAMETERSET_TYPE_ICV_INDICATOR = (byte) 255;
+
+    // Member Identifier & Number fields.
+    public static final int FIELD_MI_LENGTH = 12;
+    public static final int FIELD_MN_LENGTH = 4;
+
+    // SCI field details.
+    public static final int FIELD_SCI_LENGTH = 8;
+
+    // Body Length field details.
+    public static final byte BODY_LENGTH_MSB_MASK = (byte) 0x0F;
+    public static final byte BODY_LENGTH_MSB_SHIFT = (byte) 0x08;
+    public static final byte BODY_LENGTH_OCTET_OFFSET = (byte) 0x04;
+
+    /**
+     * Retrieve Type of Parameter Set.
+     *
+     * @return parameter set type.
+     */
+    public byte getParameterSetType();
+
+    /**
+     * Total length; ie. including header and body length.
+     *
+     * @return short value.
+     */
+    public short getTotalLength();
+
+    /**
+     * Retrieve Body Length field of Parameter Set.
+     *
+     * @return body length of parameter set.
+     */
+    public short getBodyLength();
+
+    /**
+     * Utility function for Serializing Parameter Set.
+     *
+     * @return byte[] value
+     */
+    public byte[] serialize();
+}