--- /dev/null
+/**
+* Copyright (c) 2008 The Board of Trustees of The Leland Stanford Junior
+* 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.openflow.protocol;
+
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.concurrent.ConcurrentHashMap;
+
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.openflow.util.HexString;
+import org.openflow.util.U16;
+import org.openflow.util.U32;
+import org.openflow.util.U8;
+
+/**
+ * The base class for all OpenFlow protocol messages. This class contains the
+ * equivalent of the ofp_header which is present in all OpenFlow messages.
+ *
+ * @author David Erickson (daviderickson@cs.stanford.edu) - Feb 3, 2010
+ * @author Rob Sherwood (rob.sherwood@stanford.edu) - Feb 3, 2010
+ */
+public class OFMessage {
+ public static final int MAXIMUM_LENGTH = (1 << 16) - 1;
+ public static byte OFP_VERSION = 0x01;
+ public static int MINIMUM_LENGTH = 8;
+
+ protected byte version;
+ protected OFType type;
+ protected short length;
+ protected int xid;
+
+ private ConcurrentHashMap<String, Object> storage;
+
+ public OFMessage() {
+ storage = null;
+ this.version = OFP_VERSION;
+ }
+
+ protected synchronized ConcurrentHashMap<String, Object> getMessageStore() {
+ if (storage == null) {
+ storage = new ConcurrentHashMap<String, Object>();;
+ }
+ return storage;
+ }
+
+ /**
+ * Get the length of this message
+ *
+ * @return
+ */
+ public short getLength() {
+ return length;
+ }
+
+ /**
+ * Get the length of this message, unsigned
+ *
+ * @return
+ */
+ public int getLengthU() {
+ return U16.f(length);
+ }
+
+ /**
+ * Set the length of this message
+ *
+ * @param length
+ */
+ public OFMessage setLength(short length) {
+ this.length = length;
+ return this;
+ }
+
+ /**
+ * Set the length of this message, unsigned
+ *
+ * @param length
+ */
+ public OFMessage setLengthU(int length) {
+ this.length = U16.t(length);
+ return this;
+ }
+
+ /**
+ * Get the type of this message
+ *
+ * @return
+ */
+ public OFType getType() {
+ return type;
+ }
+
+ /**
+ * Set the type of this message
+ *
+ * @param type
+ */
+ public void setType(OFType type) {
+ this.type = type;
+ }
+
+ /**
+ * Get the OpenFlow version of this message
+ *
+ * @return
+ */
+ public byte getVersion() {
+ return version;
+ }
+
+ /**
+ * Set the OpenFlow version of this message
+ *
+ * @param version
+ */
+ public void setVersion(byte version) {
+ this.version = version;
+ }
+
+ /**
+ * Get the transaction id of this message
+ *
+ * @return
+ */
+ public int getXid() {
+ return xid;
+ }
+
+ /**
+ * Set the transaction id of this message
+ *
+ * @param xid
+ */
+ public void setXid(int xid) {
+ this.xid = xid;
+ }
+
+ /**
+ * Read this message off the wire from the specified ByteBuffer
+ * @param data
+ */
+ public void readFrom(ChannelBuffer data) {
+ this.version = data.readByte();
+ this.type = OFType.valueOf(data.readByte());
+ this.length = data.readShort();
+ this.xid = data.readInt();
+ }
+
+ /**
+ * Write this message's binary format to the specified ByteBuffer
+ * @param data
+ */
+ public void writeTo(ChannelBuffer data) {
+ data.writeByte(version);
+ data.writeByte(type.getTypeValue());
+ data.writeShort(length);
+ data.writeInt(xid);
+ }
+
+ /**
+ * Returns a summary of the message
+ * @return "ofmsg=v=$version;t=$type:l=$len:xid=$xid"
+ */
+ @Override
+ public String toString() {
+ return "ofmsg" +
+ ":v=" + U8.f(this.getVersion()) +
+ ";t=" + this.getType() +
+ ";l=" + this.getLengthU() +
+ ";x=" + U32.f(this.getXid());
+ }
+
+ @Override
+ public int hashCode() {
+ final int prime = 97;
+ int result = 1;
+ result = prime * result + length;
+ result = prime * result + ((type == null) ? 0 : type.hashCode());
+ result = prime * result + version;
+ result = prime * result + xid;
+ return result;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (obj == null) {
+ return false;
+ }
+ if (!(obj instanceof OFMessage)) {
+ return false;
+ }
+ OFMessage other = (OFMessage) obj;
+ if (length != other.length) {
+ return false;
+ }
+ if (type == null) {
+ if (other.type != null) {
+ return false;
+ }
+ } else if (!type.equals(other.type)) {
+ return false;
+ }
+ if (version != other.version) {
+ return false;
+ }
+ if (xid != other.xid) {
+ return false;
+ }
+ return true;
+ }
+
+ /*
+ public static String getDataAsString(IOFSwitch sw, OFMessage msg) {
+
+
+ Ethernet eth;
+ StringBuffer sb = new StringBuffer("");
+
+ DateFormat dateFormat = new SimpleDateFormat("HH:mm:ss.SSS");
+ Date date = new Date();
+
+ sb.append(dateFormat.format(date));
+ sb.append(" ");
+
+ switch (msg.getType()) {
+ case PACKET_IN:
+ OFPacketIn pktIn = (OFPacketIn) msg;
+ sb.append("packet_in [ ");
+ sb.append(sw.getStringId());
+ sb.append(" -> Controller");
+ sb.append(" ]");
+
+ sb.append("\ntotal length: ");
+ sb.append(pktIn.getTotalLength());
+ sb.append("\nin_port: ");
+ sb.append(pktIn.getInPort());
+ sb.append("\ndata_length: ");
+ sb.append(pktIn.getTotalLength() - OFPacketIn.MINIMUM_LENGTH);
+ sb.append("\nbuffer: ");
+ sb.append(pktIn.getBufferId());
+
+ break;
+
+ case PACKET_OUT:
+ OFPacketOut pktOut = (OFPacketOut) msg;
+ sb.append("packet_out [ ");
+ sb.append("Controller -> ");
+ sb.append(HexString.toHexString(sw.getId()));
+ sb.append(" ]");
+
+ sb.append("\nin_port: ");
+ sb.append(pktOut.getInPort());
+ sb.append("\nactions_len: ");
+ sb.append(pktOut.getActionsLength());
+ if (pktOut.getActions() != null) {
+ sb.append("\nactions: ");
+ sb.append(pktOut.getActions().toString());
+ }
+ break;
+
+ case FLOW_MOD:
+ OFFlowMod fm = (OFFlowMod) msg;
+ sb.append("flow_mod [ ");
+ sb.append("Controller -> ");
+ sb.append(HexString.toHexString(sw.getId()));
+ sb.append(" ]");
+
+
+ sb.append("\nADD: cookie: ");
+ sb.append(fm.getCookie());
+ sb.append(" idle: ");
+ sb.append(fm.getIdleTimeout());
+ sb.append(" hard: ");
+ sb.append(fm.getHardTimeout());
+ sb.append(" pri: ");
+ sb.append(fm.getPriority());
+ sb.append(" buf: ");
+ sb.append(fm.getBufferId());
+ sb.append(" flg: ");
+ sb.append(fm.getFlags());
+ if (fm.getActions() != null) {
+ sb.append("\nactions: ");
+ sb.append(fm.getActions().toString());
+ }
+ break;
+
+ default:
+ sb.append("[Unknown Packet]");
+ }
+
+ sb.append("\n\n");
+ return sb.toString();
+
+ }
+ */
+
+
+ // Check if this is really required
+ /*
+ public static byte[] getData(IOFSwitch sw, OFMessage msg, FloodlightContext cntx) {
+ return OFMessage.getDataAsString(sw, msg, cntx).getBytes();
+ }
+ */
+}
Code Review / controller.git / blobdiff