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/* $Id: VSCSISense.cpp $ */
/** @file
* Virtual SCSI driver: Sense handling
*/
/*
* Copyright (C) 2006-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#define LOG_GROUP LOG_GROUP_VSCSI
#include <VBox/log.h>
#include <iprt/assert.h>
#include <iprt/string.h>
#include "VSCSIInternal.h"
void vscsiSenseInit(PVSCSISENSE pVScsiSense)
{
memset(pVScsiSense->abSenseBuf, 0, sizeof(pVScsiSense->abSenseBuf));
/* Fill in valid sense information (can't be just zeros). */
pVScsiSense->abSenseBuf[0] = (1 << 7) | SCSI_SENSE_RESPONSE_CODE_CURR_FIXED; /* Fixed format */
pVScsiSense->abSenseBuf[2] = SCSI_SENSE_NONE;
pVScsiSense->abSenseBuf[7] = 10;
pVScsiSense->abSenseBuf[12] = SCSI_ASC_NONE;
}
int vscsiReqSenseOkSet(PVSCSISENSE pVScsiSense, PVSCSIREQINT pVScsiReq)
{
memset(pVScsiSense->abSenseBuf, 0, sizeof(pVScsiSense->abSenseBuf));
pVScsiSense->abSenseBuf[0] = (1 << 7) | SCSI_SENSE_RESPONSE_CODE_CURR_FIXED; /* Fixed format */
pVScsiSense->abSenseBuf[2] = SCSI_SENSE_NONE;
pVScsiSense->abSenseBuf[7] = 10;
pVScsiSense->abSenseBuf[12] = SCSI_ASC_NONE;
pVScsiSense->abSenseBuf[13] = SCSI_ASC_NONE; /* Should be ASCQ but it has the same value for success. */
if (pVScsiReq->pbSense && pVScsiReq->cbSense)
{
pVScsiReq->cbSenseWritten = RT_MIN(sizeof(pVScsiSense->abSenseBuf), pVScsiReq->cbSense);
memcpy(pVScsiReq->pbSense, pVScsiSense->abSenseBuf, pVScsiReq->cbSenseWritten);
}
return SCSI_STATUS_OK;
}
int vscsiReqSenseErrorSet(PVSCSISENSE pVScsiSense, PVSCSIREQINT pVScsiReq, uint8_t uSCSISenseKey, uint8_t uSCSIASC, uint8_t uSCSIASCQ)
{
memset(pVScsiSense->abSenseBuf, 0, sizeof(pVScsiSense->abSenseBuf));
pVScsiSense->abSenseBuf[0] = (1 << 7) | SCSI_SENSE_RESPONSE_CODE_CURR_FIXED; /* Fixed format */
pVScsiSense->abSenseBuf[2] = uSCSISenseKey;
pVScsiSense->abSenseBuf[7] = 10;
pVScsiSense->abSenseBuf[12] = uSCSIASC;
pVScsiSense->abSenseBuf[13] = uSCSIASCQ;
if (pVScsiReq->pbSense && pVScsiReq->cbSense)
{
pVScsiReq->cbSenseWritten = RT_MIN(sizeof(pVScsiSense->abSenseBuf), pVScsiReq->cbSense);
memcpy(pVScsiReq->pbSense, pVScsiSense->abSenseBuf, pVScsiReq->cbSenseWritten);
}
return SCSI_STATUS_CHECK_CONDITION;
}
int vscsiReqSenseErrorInfoSet(PVSCSISENSE pVScsiSense, PVSCSIREQINT pVScsiReq, uint8_t uSCSISenseKey, uint8_t uSCSIASC, uint8_t uSCSIASCQ, uint32_t uInfo)
{
memset(pVScsiSense->abSenseBuf, 0, sizeof(pVScsiSense->abSenseBuf));
pVScsiSense->abSenseBuf[0] = RT_BIT(7) | SCSI_SENSE_RESPONSE_CODE_CURR_FIXED; /* Fixed format */
pVScsiSense->abSenseBuf[2] = uSCSISenseKey;
scsiH2BE_U32(&pVScsiSense->abSenseBuf[3], uInfo);
pVScsiSense->abSenseBuf[7] = 10;
pVScsiSense->abSenseBuf[12] = uSCSIASC;
pVScsiSense->abSenseBuf[13] = uSCSIASCQ;
if (pVScsiReq->pbSense && pVScsiReq->cbSense)
{
pVScsiReq->cbSenseWritten = RT_MIN(sizeof(pVScsiSense->abSenseBuf), pVScsiReq->cbSense);
memcpy(pVScsiReq->pbSense, pVScsiSense->abSenseBuf, pVScsiReq->cbSenseWritten);
}
return SCSI_STATUS_CHECK_CONDITION;
}
int vscsiReqSenseCmd(PVSCSISENSE pVScsiSense, PVSCSIREQINT pVScsiReq)
{
/* Copy the current sense data to the buffer. */
RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, pVScsiSense->abSenseBuf, sizeof(pVScsiSense->abSenseBuf));
return vscsiReqSenseOkSet(pVScsiSense, pVScsiReq);
}
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