org.jscsi.parser.reject

Enum RejectParser.ReasonCode

java.lang.Object

java.lang.Enum<RejectParser.ReasonCode>

org.jscsi.parser.reject.RejectParser.ReasonCode

All Implemented Interfaces:

Serializable, Comparable<RejectParser.ReasonCode>

Enclosing class:

RejectParser

public static enum RejectParser.ReasonCode
extends Enum<RejectParser.ReasonCode>

This enumeration defines all valid reasonCode code, which are defined in the iSCSI Standard (RFC 3720).

Code (hex)	Explanation	Can the original PDU be re-sent?
0x01	Reserved	no
0x02	Data (payload) Digest Error	yes (Note 1)
0x03	SNACK Reject	yes
0x04	Protocol Error (e.g., SNACK request for a status that was already acknowledged)	no
0x05	Command not supported	no
0x06	Immediate Command Reject - too many immediate commands	yes
0x07	Task in progress	no
0x08	Invalid Data ACK	no
0x09	Invalid PDU field	no (Note 2)
0x0a	Long Operation Reject - Can't generate Target Transfer Tag - out of resources	yes
0x0b	Negotiation Reset	no
0x0c	Waiting for Logout	no

Note 1: For iSCSI, Data-Out PDU retransmission is only done if the target requests retransmission with a recovery R2T. However, if this is the data digest error on immediate data, the initiator may choose to retransmit the whole PDU including the immediate data.

Note 2: A target should use this reasonCode code for all invalid values of PDU fields that are meant to describe a task, a response, or a data transfer. Some examples are invalid TTT/ITT, buffer offset, LUN qualifying a TTT, and an invalid sequence number in a SNACK.

All other values for Reason are reserved.

Enum Constant Summary

Enum Constants

Enum Constant and Description
COMMAND_NOT_SUPPORTED Command not supported.
DATA_DIGEST_ERROR Data (payload) Digest Error.
IMMEDIATE_COMMAND_REJECT Immediate Command Reject - too many immediate commands.
INVALID_DATA_ACK Invalid Data ACK.
INVALID_PDU_FIELD Invalid PDU field.
LONG_OPERATION_REJECT Long Operation Reject - Can't generate Target Transfer Tag - out of resources.
NEGOTIATION_RESET Negotiation Reset.
PROTOCOL_ERROR Protocol Error (e.g., SNACK request for a status that was already acknowledged).
RESERVED Reserved.
SNACK_REJECT SNACK Reject.
TASK_IN_PROGRESS Task in progress.
WAITING_FOR_LOGOUT Waiting for Logout.

Method Summary

Methods

Modifier and Type	Method and Description
byte	value() Returns the value of this enumeration.
static RejectParser.ReasonCode	valueOf(byte value) Returns the constant defined for the given value.
static RejectParser.ReasonCode	valueOf(String name) Returns the enum constant of this type with the specified name.
static RejectParser.ReasonCode[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

RESERVED

public static final RejectParser.ReasonCode RESERVED

Reserved.

DATA_DIGEST_ERROR

public static final RejectParser.ReasonCode DATA_DIGEST_ERROR

Data (payload) Digest Error.

SNACK_REJECT

public static final RejectParser.ReasonCode SNACK_REJECT

SNACK Reject.

PROTOCOL_ERROR

public static final RejectParser.ReasonCode PROTOCOL_ERROR

Protocol Error (e.g., SNACK request for a status that was already acknowledged).

COMMAND_NOT_SUPPORTED

public static final RejectParser.ReasonCode COMMAND_NOT_SUPPORTED

Command not supported.

IMMEDIATE_COMMAND_REJECT

public static final RejectParser.ReasonCode IMMEDIATE_COMMAND_REJECT

Immediate Command Reject - too many immediate commands.

TASK_IN_PROGRESS

public static final RejectParser.ReasonCode TASK_IN_PROGRESS

Task in progress.

INVALID_DATA_ACK

public static final RejectParser.ReasonCode INVALID_DATA_ACK

Invalid Data ACK.

INVALID_PDU_FIELD

public static final RejectParser.ReasonCode INVALID_PDU_FIELD

Invalid PDU field.

LONG_OPERATION_REJECT

public static final RejectParser.ReasonCode LONG_OPERATION_REJECT

Long Operation Reject - Can't generate Target Transfer Tag - out of resources.

NEGOTIATION_RESET

public static final RejectParser.ReasonCode NEGOTIATION_RESET

Negotiation Reset.

WAITING_FOR_LOGOUT

public static final RejectParser.ReasonCode WAITING_FOR_LOGOUT

Waiting for Logout.

Method Detail

values

public static RejectParser.ReasonCode[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (RejectParser.ReasonCode c : RejectParser.ReasonCode.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static RejectParser.ReasonCode valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

value

public final byte value()

Returns the value of this enumeration.

Returns:

The value of this enumeration.

valueOf

public static final RejectParser.ReasonCode valueOf(byte value)

Returns the constant defined for the given value.

Parameters:

value - The value to search for.

Returns:

The constant defined for the given value. Or null, if this value is not defined by this enumeration.