initial import
Change-Id: Ief25aef0066ea96bd2c329ccef974c072b3a5a73
diff --git a/of/lib/src/main/java/org/projectfloodlight/openflow/types/IpEcn.java b/of/lib/src/main/java/org/projectfloodlight/openflow/types/IpEcn.java
new file mode 100644
index 0000000..654df01
--- /dev/null
+++ b/of/lib/src/main/java/org/projectfloodlight/openflow/types/IpEcn.java
@@ -0,0 +1,73 @@
+package org.projectfloodlight.openflow.types;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.projectfloodlight.openflow.exceptions.OFParseError;
+
+import com.google.common.hash.PrimitiveSink;
+
+public enum IpEcn implements OFValueType<IpEcn> {
+ ECN_00((byte)0),
+ ECN_01((byte)1),
+ ECN_10((byte)2),
+ ECN_11((byte)3),
+ ECN_NO_MASK((byte)0xFF);
+
+ public static final IpEcn NONE = ECN_00;
+ public static final IpEcn NO_MASK = ECN_NO_MASK;
+ public static final IpEcn FULL_MASK = ECN_00;
+
+ static final int LENGTH = 1;
+
+ private final byte ecn;
+
+ private IpEcn(byte ecn) {
+ this.ecn = ecn;
+ }
+
+ public static IpEcn of(byte ecn) {
+ switch (ecn) {
+ case 0:
+ return ECN_00;
+ case 1:
+ return ECN_01;
+ case 2:
+ return ECN_10;
+ case 3:
+ return ECN_11;
+ default:
+ throw new IllegalArgumentException("Illegal IP ECN value: " + ecn);
+ }
+ }
+
+ @Override
+ public int getLength() {
+ return LENGTH;
+ }
+
+ @Override
+ public String toString() {
+ return (ecn < 3 ? "0" : "") + Integer.toBinaryString(ecn);
+ }
+
+ public void writeByte(ChannelBuffer c) {
+ c.writeByte(this.ecn);
+ }
+
+ public static IpEcn readByte(ChannelBuffer c) throws OFParseError {
+ return IpEcn.of((byte)(c.readUnsignedByte()));
+ }
+
+ @Override
+ public IpEcn applyMask(IpEcn mask) {
+ return IpEcn.of((byte)(this.ecn & mask.ecn));
+ }
+
+ public byte getEcnValue() {
+ return ecn;
+ }
+
+ @Override
+ public void putTo(PrimitiveSink sink) {
+ sink.putByte(ecn);
+ }
+}