+++ /dev/null
-package org.openflow.protocol;
-
-import java.nio.ByteBuffer;
-import java.util.Arrays;
-import java.util.List;
-
-import org.openflow.protocol.factory.OFMessageFactory;
-import org.openflow.protocol.factory.OFMessageFactoryAware;
-import org.openflow.util.U16;
-
-/**
- * Represents an ofp_error_msg
- *
- * @author David Erickson (daviderickson@cs.stanford.edu)
- * @author Rob Sherwood (rob.sherwood@stanford.edu)
- */
-public class OFError extends OFMessage implements OFMessageFactoryAware {
- public static int MINIMUM_LENGTH = 12;
-
- public enum OFErrorType {
- OFPET_HELLO_FAILED, OFPET_BAD_REQUEST, OFPET_BAD_ACTION, OFPET_FLOW_MOD_FAILED, OFPET_PORT_MOD_FAILED, OFPET_QUEUE_OP_FAILED
- }
-
- public enum OFHelloFailedCode {
- OFPHFC_INCOMPATIBLE, OFPHFC_EPERM
- }
-
- public enum OFBadRequestCode {
- OFPBRC_BAD_VERSION, OFPBRC_BAD_TYPE, OFPBRC_BAD_STAT, OFPBRC_BAD_VENDOR, OFPBRC_BAD_SUBTYPE, OFPBRC_EPERM, OFPBRC_BAD_LEN, OFPBRC_BUFFER_EMPTY, OFPBRC_BUFFER_UNKNOWN
- }
-
- public enum OFBadActionCode {
- OFPBAC_BAD_TYPE, OFPBAC_BAD_LEN, OFPBAC_BAD_VENDOR, OFPBAC_BAD_VENDOR_TYPE, OFPBAC_BAD_OUT_PORT, OFPBAC_BAD_ARGUMENT, OFPBAC_EPERM, OFPBAC_TOO_MANY, OFPBAC_BAD_QUEUE
- }
-
- public enum OFFlowModFailedCode {
- OFPFMFC_ALL_TABLES_FULL, OFPFMFC_OVERLAP, OFPFMFC_EPERM, OFPFMFC_BAD_EMERG_TIMEOUT, OFPFMFC_BAD_COMMAND, OFPFMFC_UNSUPPORTED
- }
-
- public enum OFPortModFailedCode {
- OFPPMFC_BAD_PORT, OFPPMFC_BAD_HW_ADDR
- }
-
- public enum OFQueueOpFailedCode {
- OFPQOFC_BAD_PORT, OFPQOFC_BAD_QUEUE, OFPQOFC_EPERM
- }
-
- protected short errorType;
- protected short errorCode;
- protected OFMessageFactory factory;
- protected byte[] error;
- protected boolean errorIsAscii;
-
- public OFError() {
- super();
- this.type = OFType.ERROR;
- this.length = U16.t(MINIMUM_LENGTH);
- }
-
- /**
- * @return the errorType
- */
- public short getErrorType() {
- return errorType;
- }
-
- /**
- * @param errorType
- * the errorType to set
- */
- public void setErrorType(short errorType) {
- this.errorType = errorType;
- }
-
- public void setErrorType(OFErrorType type) {
- this.errorType = (short) type.ordinal();
- }
-
- /**
- * @return the errorCode
- */
- public short getErrorCode() {
- return errorCode;
- }
-
- /**
- * @param errorCode
- * the errorCode to set
- */
- public void setErrorCode(OFHelloFailedCode code) {
- this.errorCode = (short) code.ordinal();
- }
-
- public void setErrorCode(short errorCode) {
- this.errorCode = errorCode;
- }
-
- public void setErrorCode(OFBadRequestCode code) {
- this.errorCode = (short) code.ordinal();
- }
-
- public void setErrorCode(OFBadActionCode code) {
- this.errorCode = (short) code.ordinal();
- }
-
- public void setErrorCode(OFFlowModFailedCode code) {
- this.errorCode = (short) code.ordinal();
- }
-
- public void setErrorCode(OFPortModFailedCode code) {
- this.errorCode = (short) code.ordinal();
- }
-
- public void setErrorCode(OFQueueOpFailedCode code) {
- this.errorCode = (short) code.ordinal();
- }
-
- public OFMessage getOffendingMsg() {
- // should only have one message embedded; if more than one, just
- // grab first
- if (this.error == null)
- return null;
- ByteBuffer errorMsg = ByteBuffer.wrap(this.error);
- if (factory == null)
- throw new RuntimeException("MessageFactory not set");
- List<OFMessage> messages = this.factory.parseMessages(errorMsg,
- error.length);
- // OVS apparently sends partial messages in errors
- // need to be careful of that AND can't use data.limit() as
- // a packet boundary because there could be more data queued
- if (messages.size() > 0) {
- return messages.get(0);
- } else {
- return null;
- }
- }
-
- /**
- * Write this offending message into the payload of the Error message
- *
- * @param offendingMsg
- */
-
- public void setOffendingMsg(OFMessage offendingMsg) {
- if (offendingMsg == null) {
- super.setLengthU(MINIMUM_LENGTH);
- } else {
- this.error = new byte[offendingMsg.getLengthU()];
- ByteBuffer data = ByteBuffer.wrap(this.error);
- offendingMsg.writeTo(data);
- super.setLengthU(MINIMUM_LENGTH + offendingMsg.getLengthU());
- }
- }
-
- public OFMessageFactory getFactory() {
- return factory;
- }
-
- @Override
- public void setMessageFactory(OFMessageFactory factory) {
- this.factory = factory;
- }
-
- /**
- * @return the error
- */
- public byte[] getError() {
- return error;
- }
-
- /**
- * @param error
- * the error to set
- */
- public void setError(byte[] error) {
- this.error = error;
- }
-
- /**
- * @return the errorIsAscii
- */
- public boolean isErrorIsAscii() {
- return errorIsAscii;
- }
-
- /**
- * @param errorIsAscii
- * the errorIsAscii to set
- */
- public void setErrorIsAscii(boolean errorIsAscii) {
- this.errorIsAscii = errorIsAscii;
- }
-
- @Override
- public void readFrom(ByteBuffer data) {
- super.readFrom(data);
- this.errorType = data.getShort();
- this.errorCode = data.getShort();
- int dataLength = this.getLengthU() - MINIMUM_LENGTH;
- if (dataLength > 0) {
- this.error = new byte[dataLength];
- data.get(this.error);
- if (this.errorType == OFErrorType.OFPET_HELLO_FAILED.ordinal())
- this.errorIsAscii = true;
- }
- }
-
- @Override
- public void writeTo(ByteBuffer data) {
- super.writeTo(data);
- data.putShort(errorType);
- data.putShort(errorCode);
- if (error != null)
- data.put(error);
- }
-
- /*
- * (non-Javadoc)
- *
- * @see java.lang.Object#hashCode()
- */
- @Override
- public int hashCode() {
- final int prime = 31;
- int result = super.hashCode();
- result = prime * result + Arrays.hashCode(error);
- result = prime * result + errorCode;
- result = prime * result + (errorIsAscii ? 1231 : 1237);
- result = prime * result + errorType;
- return result;
- }
-
- /*
- * (non-Javadoc)
- *
- * @see java.lang.Object#equals(java.lang.Object)
- */
- @Override
- public boolean equals(Object obj) {
- if (this == obj)
- return true;
- if (!super.equals(obj))
- return false;
- if (getClass() != obj.getClass())
- return false;
- OFError other = (OFError) obj;
- if (!Arrays.equals(error, other.error))
- return false;
- if (errorCode != other.errorCode)
- return false;
- if (errorIsAscii != other.errorIsAscii)
- return false;
- if (errorType != other.errorType)
- return false;
- return true;
- }
-
-}