adding packet types
diff --git a/utils/misc/src/main/java/org/onlab/packet/DHCPPacketType.java b/utils/misc/src/main/java/org/onlab/packet/DHCPPacketType.java
new file mode 100644
index 0000000..a1b5bea
--- /dev/null
+++ b/utils/misc/src/main/java/org/onlab/packet/DHCPPacketType.java
@@ -0,0 +1,130 @@
+/*******************************************************************************
+ * Copyright 2014 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.
+ ******************************************************************************/
+/**
+ * Copyright 2011, Big Switch Networks, Inc.
+ * Originally created by David Erickson, Stanford University
+ *
+ * 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;
+
+public enum DHCPPacketType {
+ // From RFC 1533
+ DHCPDISCOVER(1), DHCPOFFER(2), DHCPREQUEST(3), DHCPDECLINE(4), DHCPACK(5), DHCPNAK(
+ 6), DHCPRELEASE(7),
+
+ // From RFC2132
+ DHCPINFORM(8),
+
+ // From RFC3203
+ DHCPFORCERENEW(9),
+
+ // From RFC4388
+ DHCPLEASEQUERY(10), DHCPLEASEUNASSIGNED(11), DHCPLEASEUNKNOWN(12), DHCPLEASEACTIVE(
+ 13);
+
+ protected int value;
+
+ private DHCPPacketType(final int value) {
+ this.value = value;
+ }
+
+ public int getValue() {
+ return this.value;
+ }
+
+ @Override
+ public String toString() {
+ switch (this.value) {
+ case 1:
+ return "DHCPDISCOVER";
+ case 2:
+ return "DHCPOFFER";
+ case 3:
+ return "DHCPREQUEST";
+ case 4:
+ return "DHCPDECLINE";
+ case 5:
+ return "DHCPACK";
+ case 6:
+ return "DHCPNAK";
+ case 7:
+ return "DHCPRELEASE";
+ case 8:
+ return "DHCPINFORM";
+ case 9:
+ return "DHCPFORCERENEW";
+ case 10:
+ return "DHCPLEASEQUERY";
+ case 11:
+ return "DHCPLEASEUNASSIGNED";
+ case 12:
+ return "DHCPLEASEUNKNOWN";
+ case 13:
+ return "DHCPLEASEACTIVE";
+ default:
+ break;
+ }
+
+ return null;
+ }
+
+ public static DHCPPacketType getType(final int value) {
+ switch (value) {
+ case 1:
+ return DHCPDISCOVER;
+ case 2:
+ return DHCPOFFER;
+ case 3:
+ return DHCPREQUEST;
+ case 4:
+ return DHCPDECLINE;
+ case 5:
+ return DHCPACK;
+ case 6:
+ return DHCPNAK;
+ case 7:
+ return DHCPRELEASE;
+ case 8:
+ return DHCPINFORM;
+ case 9:
+ return DHCPFORCERENEW;
+ case 10:
+ return DHCPLEASEQUERY;
+ case 11:
+ return DHCPLEASEUNASSIGNED;
+ case 12:
+ return DHCPLEASEUNKNOWN;
+ case 13:
+ return DHCPLEASEACTIVE;
+ default:
+ break;
+ }
+
+ return null;
+ }
+}