| 1 | /* $Id: VSCSISense.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
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| 2 | /** @file
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| 3 | * Virtual SCSI driver: Sense handling
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2019 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 | #define LOG_GROUP LOG_GROUP_VSCSI
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| 18 | #include <VBox/log.h>
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| 19 | #include <iprt/assert.h>
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| 20 | #include <iprt/string.h>
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| 21 |
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| 22 | #include "VSCSIInternal.h"
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| 23 |
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| 24 | void vscsiSenseInit(PVSCSISENSE pVScsiSense)
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| 25 | {
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| 26 | memset(pVScsiSense->abSenseBuf, 0, sizeof(pVScsiSense->abSenseBuf));
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| 27 |
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| 28 | /* Fill in valid sense information (can't be just zeros). */
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| 29 | pVScsiSense->abSenseBuf[0] = (1 << 7) | SCSI_SENSE_RESPONSE_CODE_CURR_FIXED; /* Fixed format */
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| 30 | pVScsiSense->abSenseBuf[2] = SCSI_SENSE_NONE;
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| 31 | pVScsiSense->abSenseBuf[7] = 10;
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| 32 | pVScsiSense->abSenseBuf[12] = SCSI_ASC_NONE;
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| 33 | }
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| 34 |
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| 35 | int vscsiReqSenseOkSet(PVSCSISENSE pVScsiSense, PVSCSIREQINT pVScsiReq)
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| 36 | {
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| 37 | memset(pVScsiSense->abSenseBuf, 0, sizeof(pVScsiSense->abSenseBuf));
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| 38 |
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| 39 | pVScsiSense->abSenseBuf[0] = (1 << 7) | SCSI_SENSE_RESPONSE_CODE_CURR_FIXED; /* Fixed format */
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| 40 | pVScsiSense->abSenseBuf[2] = SCSI_SENSE_NONE;
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| 41 | pVScsiSense->abSenseBuf[7] = 10;
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| 42 | pVScsiSense->abSenseBuf[12] = SCSI_ASC_NONE;
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| 43 | pVScsiSense->abSenseBuf[13] = SCSI_ASC_NONE; /* Should be ASCQ but it has the same value for success. */
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| 44 |
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| 45 | if (pVScsiReq->pbSense && pVScsiReq->cbSense)
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| 46 | memcpy(pVScsiReq->pbSense, pVScsiSense->abSenseBuf, RT_MIN(sizeof(pVScsiSense->abSenseBuf), pVScsiReq->cbSense));
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| 47 |
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| 48 | return SCSI_STATUS_OK;
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| 49 | }
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| 50 |
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| 51 | int vscsiReqSenseErrorSet(PVSCSISENSE pVScsiSense, PVSCSIREQINT pVScsiReq, uint8_t uSCSISenseKey, uint8_t uSCSIASC, uint8_t uSCSIASCQ)
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| 52 | {
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| 53 | memset(pVScsiSense->abSenseBuf, 0, sizeof(pVScsiSense->abSenseBuf));
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| 54 | pVScsiSense->abSenseBuf[0] = (1 << 7) | SCSI_SENSE_RESPONSE_CODE_CURR_FIXED; /* Fixed format */
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| 55 | pVScsiSense->abSenseBuf[2] = uSCSISenseKey;
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| 56 | pVScsiSense->abSenseBuf[7] = 10;
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| 57 | pVScsiSense->abSenseBuf[12] = uSCSIASC;
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| 58 | pVScsiSense->abSenseBuf[13] = uSCSIASCQ;
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| 59 |
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| 60 | if (pVScsiReq->pbSense && pVScsiReq->cbSense)
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| 61 | memcpy(pVScsiReq->pbSense, pVScsiSense->abSenseBuf, RT_MIN(sizeof(pVScsiSense->abSenseBuf), pVScsiReq->cbSense));
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| 62 |
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| 63 | return SCSI_STATUS_CHECK_CONDITION;
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| 64 | }
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| 65 |
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| 66 | int vscsiReqSenseErrorInfoSet(PVSCSISENSE pVScsiSense, PVSCSIREQINT pVScsiReq, uint8_t uSCSISenseKey, uint8_t uSCSIASC, uint8_t uSCSIASCQ, uint32_t uInfo)
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| 67 | {
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| 68 | memset(pVScsiSense->abSenseBuf, 0, sizeof(pVScsiSense->abSenseBuf));
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| 69 | pVScsiSense->abSenseBuf[0] = RT_BIT(7) | SCSI_SENSE_RESPONSE_CODE_CURR_FIXED; /* Fixed format */
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| 70 | pVScsiSense->abSenseBuf[2] = uSCSISenseKey;
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| 71 | scsiH2BE_U32(&pVScsiSense->abSenseBuf[3], uInfo);
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| 72 | pVScsiSense->abSenseBuf[7] = 10;
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| 73 | pVScsiSense->abSenseBuf[12] = uSCSIASC;
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| 74 | pVScsiSense->abSenseBuf[13] = uSCSIASCQ;
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| 75 |
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| 76 | if (pVScsiReq->pbSense && pVScsiReq->cbSense)
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| 77 | memcpy(pVScsiReq->pbSense, pVScsiSense->abSenseBuf, RT_MIN(sizeof(pVScsiSense->abSenseBuf), pVScsiReq->cbSense));
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| 78 |
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| 79 | return SCSI_STATUS_CHECK_CONDITION;
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| 80 | }
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| 81 |
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| 82 | int vscsiReqSenseCmd(PVSCSISENSE pVScsiSense, PVSCSIREQINT pVScsiReq)
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| 83 | {
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| 84 | /* Copy the current sense data to the buffer. */
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| 85 | RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, pVScsiSense->abSenseBuf, sizeof(pVScsiSense->abSenseBuf));
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| 86 | return vscsiReqSenseOkSet(pVScsiSense, pVScsiReq);
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| 87 | }
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| 88 |
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