Examples of org.jscsi.parser.BasicHeaderSegment

org.jscsi.parser.BasicHeaderSegment

BasicHeaderSegment

This class encapsulate a Basic Header Segment (BHS), which is defined in the iSCSI Protocol (RFC3720). It provides methods for serializing or deserializing such an object. The contained data can be accessed seperately by the getter methods.
The BHS has a fixed size, which is stored in the variable BHS_FIXED_SIZE. And these must the first bytes in a valid iSCSI Protocol Data Unit (PDU). org.jscsi.utils @author Volker Wildi

        return pdu;
    }


    public static final ProtocolDataUnit createLogoutResponsePdu (LogoutResponse response, int initiatorTaskTag, short time2Wait, short time2Retain) {
        final ProtocolDataUnit pdu = factory.create(false, true, OperationCode.LOGOUT_RESPONSE, "None", "None");
        final BasicHeaderSegment bhs = pdu.getBasicHeaderSegment();
        final LogoutResponseParser parser = (LogoutResponseParser) bhs.getParser();
        parser.setResponse(response);
        bhs.setInitiatorTaskTag(initiatorTaskTag);
        parser.setTime2Wait(time2Wait);
        parser.setTime2Retain(time2Retain);
        return (pdu);
    }

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        return (pdu);
    }


    public static final ProtocolDataUnit createTMResponsePdu (TaskManagementFunctionResponseParser.ResponseCode response, int initiatorTaskTag) {
        final ProtocolDataUnit pdu = factory.create(false, true, OperationCode.SCSI_TM_RESPONSE, "None", "None");
        final BasicHeaderSegment bhs = pdu.getBasicHeaderSegment();
        final TaskManagementFunctionResponseParser parser = (TaskManagementFunctionResponseParser) bhs.getParser();
        parser.setResponse(response);
        bhs.setInitiatorTaskTag(initiatorTaskTag);
        return (pdu);
    }

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        return (pdu);
    }


    public static final ProtocolDataUnit createReadyToTransferPdu (long logicalUnitNumber, int initiatorTaskTag, int targetTransferTag, int readyToTransferSequenceNumber, int bufferOffset, int desiredDataTransferLength) {
        final ProtocolDataUnit pdu = factory.create(false, true, OperationCode.R2T, "None", "None");
        final BasicHeaderSegment bhs = pdu.getBasicHeaderSegment();
        final Ready2TransferParser parser = (Ready2TransferParser) bhs.getParser();
        parser.setLogicalUnitNumber(logicalUnitNumber);
        bhs.setInitiatorTaskTag(initiatorTaskTag);
        parser.setTargetTransferTag(targetTransferTag);
        parser.setReady2TransferSequenceNumber(readyToTransferSequenceNumber);
        parser.setBufferOffset(bufferOffset);
        parser.setDesiredDataTransferLength(desiredDataTransferLength);
        return pdu;

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        return pdu;
    }


    public static final ProtocolDataUnit createSCSIResponsePdu (final boolean bidirectionalReadResidualOverflow, final boolean bidirectionalReadResidualUnderflow, final boolean residualOverflow, final boolean residualUnderflow, final SCSIResponseParser.ServiceResponse response, final SCSIStatus status, final int initiatorTaskTag, final int snackTag, final int expectedDataSequenceNumber, final int bidirectionalReadResidualCount, final int residualCount, final ScsiResponseDataSegment scsiResponseDataSegment) {
        final ProtocolDataUnit pdu = factory.create(false, true, OperationCode.SCSI_RESPONSE, "None", "None");
        final BasicHeaderSegment bhs = pdu.getBasicHeaderSegment();
        final SCSIResponseParser parser = (SCSIResponseParser) bhs.getParser();
        parser.setBidirectionalReadResidualOverflow(bidirectionalReadResidualOverflow);
        parser.setBidirectionalReadResidualUnderflow(bidirectionalReadResidualUnderflow);
        parser.setResidualOverflow(residualOverflow);
        parser.setResidualUnderflow(residualUnderflow);
        parser.setResponse(response);
        parser.setStatus(status);
        bhs.setInitiatorTaskTag(initiatorTaskTag);
        parser.setSNACKTag(snackTag);
        parser.setExpectedDataSequenceNumber(expectedDataSequenceNumber);
        parser.setBidirectionalReadResidualCount(bidirectionalReadResidualCount);
        parser.setResidualCount(residualCount);
        pdu.setDataSegment(scsiResponseDataSegment.serialize());

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        return pdu;
    }


    public static final ProtocolDataUnit createTextResponsePdu (boolean finalFlag, boolean continueFlag, long logicalUnitNumber, int initiatorTaskTag, int targetTransferTag, ByteBuffer dataSegment) {
        final ProtocolDataUnit pdu = factory.create(false, finalFlag, OperationCode.TEXT_RESPONSE, "None", "None");
        final BasicHeaderSegment bhs = pdu.getBasicHeaderSegment();
        final TextResponseParser parser = (TextResponseParser) bhs.getParser();
        parser.setContinueFlag(continueFlag);
        parser.setLogicalUnitNumber(logicalUnitNumber);
        bhs.setInitiatorTaskTag(initiatorTaskTag);
        parser.setTargetTransferTag(targetTransferTag);
        pdu.setDataSegment(dataSegment);
        return pdu;
    }

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        return pdu;
    }


    public static final ProtocolDataUnit createNopInPDU (final long logicalUnitNumber, final int initiatorTaskTag, final int targetTransferTag, final ByteBuffer dataSegment, final int statusSequenceNumber) {
        final ProtocolDataUnit pdu = factory.create(false, true, OperationCode.NOP_IN, "None", "None");
        final BasicHeaderSegment bhs = pdu.getBasicHeaderSegment();
        final NOPInParser parser = (NOPInParser) bhs.getParser();
        parser.setLogicalUnitNumber(logicalUnitNumber);
        bhs.setInitiatorTaskTag(initiatorTaskTag);
        parser.setTargetTransferTag(targetTransferTag);
        parser.setStatusSequenceNumber(statusSequenceNumber);
        pdu.setDataSegment(dataSegment);
        return pdu;
    }

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