1 | /* $Id: DrvHostDVD.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
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2 | /** @file
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3 | * DrvHostDVD - Host DVD block driver.
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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 |
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18 |
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19 | /*********************************************************************************************************************************
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20 | * Header Files *
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21 | *********************************************************************************************************************************/
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22 | #define LOG_GROUP LOG_GROUP_DRV_HOST_DVD
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23 | #include <iprt/asm.h>
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24 | #include <VBox/vmm/pdmdrv.h>
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25 | #include <VBox/vmm/pdmstorageifs.h>
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26 | #include <iprt/asm.h>
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27 | #include <iprt/assert.h>
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28 | #include <iprt/file.h>
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29 | #include <iprt/string.h>
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30 | #include <iprt/thread.h>
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31 | #include <iprt/critsect.h>
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32 | #include <VBox/scsi.h>
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33 | #include <VBox/scsiinline.h>
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34 |
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35 | #include "VBoxDD.h"
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36 | #include "DrvHostBase.h"
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37 | #include "ATAPIPassthrough.h"
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38 |
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39 | /** ATAPI sense info size. */
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40 | #define ATAPI_SENSE_SIZE 64
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41 | /** Size of an ATAPI packet. */
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42 | #define ATAPI_PACKET_SIZE 12
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43 |
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44 | /**
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45 | * Host DVD driver instance data.
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46 | */
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47 | typedef struct DRVHOSTDVD
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48 | {
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49 | /** Base drivr data. */
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50 | DRVHOSTBASE Core;
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51 | /** The current tracklist of the loaded medium if passthrough is used. */
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52 | PTRACKLIST pTrackList;
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53 | /** ATAPI sense data. */
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54 | uint8_t abATAPISense[ATAPI_SENSE_SIZE];
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55 | /** Flag whether to overwrite the inquiry data with our emulated settings. */
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56 | bool fInquiryOverwrite;
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57 | } DRVHOSTDVD;
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58 | /** Pointer to the host DVD driver instance data. */
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59 | typedef DRVHOSTDVD *PDRVHOSTDVD;
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60 |
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61 |
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62 | /*********************************************************************************************************************************
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63 | * Internal Functions *
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64 | *********************************************************************************************************************************/
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65 |
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66 |
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67 | static uint8_t drvHostDvdCmdOK(PDRVHOSTDVD pThis)
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68 | {
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69 | memset(pThis->abATAPISense, '\0', sizeof(pThis->abATAPISense));
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70 | pThis->abATAPISense[0] = 0x70;
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71 | pThis->abATAPISense[7] = 10;
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72 | return SCSI_STATUS_OK;
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73 | }
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74 |
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75 | static uint8_t drvHostDvdCmdError(PDRVHOSTDVD pThis, const uint8_t *pabATAPISense, size_t cbATAPISense)
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76 | {
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77 | Log(("%s: sense=%#x (%s) asc=%#x ascq=%#x (%s)\n", __FUNCTION__, pabATAPISense[2] & 0x0f, SCSISenseText(pabATAPISense[2] & 0x0f),
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78 | pabATAPISense[12], pabATAPISense[13], SCSISenseExtText(pabATAPISense[12], pabATAPISense[13])));
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79 | memset(pThis->abATAPISense, '\0', sizeof(pThis->abATAPISense));
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80 | memcpy(pThis->abATAPISense, pabATAPISense, RT_MIN(cbATAPISense, sizeof(pThis->abATAPISense)));
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81 | return SCSI_STATUS_CHECK_CONDITION;
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82 | }
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83 |
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84 | /** @todo deprecated function - doesn't provide enough info. Replace by direct
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85 | * calls to drvHostDvdCmdError() with full data. */
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86 | static uint8_t drvHostDvdCmdErrorSimple(PDRVHOSTDVD pThis, uint8_t uATAPISenseKey, uint8_t uATAPIASC)
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87 | {
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88 | uint8_t abATAPISense[ATAPI_SENSE_SIZE];
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89 | memset(abATAPISense, '\0', sizeof(abATAPISense));
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90 | abATAPISense[0] = 0x70 | (1 << 7);
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91 | abATAPISense[2] = uATAPISenseKey & 0x0f;
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92 | abATAPISense[7] = 10;
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93 | abATAPISense[12] = uATAPIASC;
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94 | return drvHostDvdCmdError(pThis, abATAPISense, sizeof(abATAPISense));
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95 | }
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96 |
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97 |
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98 | /**
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99 | * Parse the CDB and check whether it can be passed through safely.
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100 | *
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101 | * @returns Flag whether to passthrough to the device is considered safe.
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102 | * @param pThis The host DVD driver instance.
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103 | * @param pReq The request.
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104 | * @param pbCdb The CDB to parse.
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105 | * @param cbCdb Size of the CDB in bytes.
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106 | * @param cbBuf Size of the guest buffer.
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107 | * @param penmTxDir Where to store the transfer direction (guest to host or vice versa).
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108 | * @param pcbXfer Where to store the transfer size encoded in the CDB.
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109 | * @param pcbSector Where to store the sector size used for the transfer.
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110 | * @param pu8ScsiSts Where to store the SCSI status code.
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111 | */
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112 | static bool drvHostDvdParseCdb(PDRVHOSTDVD pThis, PDRVHOSTBASEREQ pReq,
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113 | const uint8_t *pbCdb, size_t cbCdb, size_t cbBuf,
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114 | PDMMEDIATXDIR *penmTxDir, size_t *pcbXfer,
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115 | size_t *pcbSector, uint8_t *pu8ScsiSts)
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116 | {
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117 | bool fPassthrough = false;
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118 |
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119 | if ( pbCdb[0] == SCSI_REQUEST_SENSE
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120 | && (pThis->abATAPISense[2] & 0x0f) != SCSI_SENSE_NONE)
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121 | {
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122 | /* Handle the command here and copy sense data over. */
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123 | void *pvBuf = NULL;
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124 | int rc = drvHostBaseBufferRetain(&pThis->Core, pReq, cbBuf, false /*fWrite*/, &pvBuf);
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125 | if (RT_SUCCESS(rc))
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126 | {
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127 | memcpy(pvBuf, &pThis->abATAPISense[0], RT_MIN(sizeof(pThis->abATAPISense), cbBuf));
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128 | rc = drvHostBaseBufferRelease(&pThis->Core, pReq, cbBuf, false /* fWrite */, pvBuf);
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129 | AssertRC(rc);
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130 | drvHostDvdCmdOK(pThis);
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131 | *pu8ScsiSts = SCSI_STATUS_OK;
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132 | }
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133 | }
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134 | else
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135 | fPassthrough = ATAPIPassthroughParseCdb(pbCdb, cbCdb, cbBuf, pThis->pTrackList,
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136 | &pThis->abATAPISense[0], sizeof(pThis->abATAPISense),
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137 | penmTxDir, pcbXfer, pcbSector, pu8ScsiSts);
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138 |
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139 | return fPassthrough;
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140 | }
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141 |
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142 |
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143 | /**
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144 | * Locks or unlocks the drive.
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145 | *
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146 | * @returns VBox status code.
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147 | * @param pThis The instance data.
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148 | * @param fLock True if the request is to lock the drive, false if to unlock.
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149 | */
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150 | static DECLCALLBACK(int) drvHostDvdDoLock(PDRVHOSTBASE pThis, bool fLock)
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151 | {
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152 | int rc = drvHostBaseDoLockOs(pThis, fLock);
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153 |
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154 | LogFlow(("drvHostDvdDoLock(, fLock=%RTbool): returns %Rrc\n", fLock, rc));
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155 | return rc;
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156 | }
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157 |
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158 |
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159 | /** @interface_method_impl{PDMIMEDIA,pfnSendCmd} */
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160 | static DECLCALLBACK(int) drvHostDvdSendCmd(PPDMIMEDIA pInterface, const uint8_t *pbCdb, size_t cbCdb,
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161 | PDMMEDIATXDIR enmTxDir, void *pvBuf, uint32_t *pcbBuf,
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162 | uint8_t *pabSense, size_t cbSense, uint32_t cTimeoutMillies)
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163 | {
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164 | PDRVHOSTBASE pThis = RT_FROM_MEMBER(pInterface, DRVHOSTBASE, IMedia);
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165 | int rc;
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166 | LogFlow(("%s: cmd[0]=%#04x txdir=%d pcbBuf=%d timeout=%d\n", __FUNCTION__, pbCdb[0], enmTxDir, *pcbBuf, cTimeoutMillies));
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167 |
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168 | RTCritSectEnter(&pThis->CritSect);
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169 | /* Pass the request on to the internal scsi command interface. */
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170 | if (enmTxDir == PDMMEDIATXDIR_FROM_DEVICE)
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171 | memset(pvBuf, '\0', *pcbBuf); /* we got read size, but zero it anyway. */
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172 | rc = drvHostBaseScsiCmdOs(pThis, pbCdb, cbCdb, enmTxDir, pvBuf, pcbBuf, pabSense, cbSense, cTimeoutMillies);
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173 | if (rc == VERR_UNRESOLVED_ERROR)
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174 | /* sense information set */
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175 | rc = VERR_DEV_IO_ERROR;
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176 |
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177 | if (pbCdb[0] == SCSI_GET_EVENT_STATUS_NOTIFICATION)
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178 | {
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179 | uint8_t *pbBuf = (uint8_t*)pvBuf;
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180 | Log2(("Event Status Notification class=%#02x supported classes=%#02x\n", pbBuf[2], pbBuf[3]));
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181 | if (RT_BE2H_U16(*(uint16_t*)pbBuf) >= 6)
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182 | Log2((" event %#02x %#02x %#02x %#02x\n", pbBuf[4], pbBuf[5], pbBuf[6], pbBuf[7]));
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183 | }
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184 | RTCritSectLeave(&pThis->CritSect);
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185 |
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186 | LogFlow(("%s: rc=%Rrc\n", __FUNCTION__, rc));
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187 | return rc;
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188 | }
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189 |
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190 |
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191 | /** @interface_method_impl{PDMIMEDIAEX,pfnIoReqSendScsiCmd} */
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192 | static DECLCALLBACK(int) drvHostDvdIoReqSendScsiCmd(PPDMIMEDIAEX pInterface, PDMMEDIAEXIOREQ hIoReq, uint32_t uLun,
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193 | const uint8_t *pbCdb, size_t cbCdb, PDMMEDIAEXIOREQSCSITXDIR enmTxDir,
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194 | size_t cbBuf, uint8_t *pabSense, size_t cbSense, uint8_t *pu8ScsiSts,
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195 | uint32_t cTimeoutMillies)
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196 | {
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197 | RT_NOREF3(uLun, cTimeoutMillies, enmTxDir);
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198 |
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199 | PDRVHOSTDVD pThis = RT_FROM_MEMBER(pInterface, DRVHOSTDVD, Core.IMediaEx);
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200 | PDRVHOSTBASEREQ pReq = (PDRVHOSTBASEREQ)hIoReq;
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201 | int rc = VINF_SUCCESS;
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202 |
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203 | LogFlow(("%s: pbCdb[0]=%#04x{%s} enmTxDir=%d cbBuf=%zu timeout=%u\n",
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204 | __FUNCTION__, pbCdb[0], SCSICmdText(pbCdb[0]), enmTxDir, cbBuf, cTimeoutMillies));
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205 |
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206 | RTCritSectEnter(&pThis->Core.CritSect);
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207 |
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208 | /*
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209 | * Parse the command first to fend off any illegal or dangerous commands we don't want the guest
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210 | * to execute on the host drive.
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211 | */
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212 | PDMMEDIATXDIR enmXferDir = PDMMEDIATXDIR_NONE;
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213 | size_t cbXfer = 0;
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214 | size_t cbSector = 0;
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215 | size_t cbScsiCmdBufLimit = drvHostBaseScsiCmdGetBufLimitOs(&pThis->Core);
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216 | bool fPassthrough = drvHostDvdParseCdb(pThis, pReq, pbCdb, cbCdb, cbBuf,
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217 | &enmXferDir, &cbXfer, &cbSector, pu8ScsiSts);
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218 | if (fPassthrough)
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219 | {
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220 | void *pvBuf = NULL;
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221 | size_t cbXferCur = cbXfer;
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222 |
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223 | pReq->cbReq = cbXfer;
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224 | pReq->cbResidual = cbXfer;
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225 |
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226 | if (cbXfer)
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227 | rc = drvHostBaseBufferRetain(&pThis->Core, pReq, cbXfer, enmXferDir == PDMMEDIATXDIR_TO_DEVICE, &pvBuf);
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228 |
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229 | if (cbXfer > cbScsiCmdBufLimit)
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230 | {
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231 | /* Linux accepts commands with up to 100KB of data, but expects
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232 | * us to handle commands with up to 128KB of data. The usual
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233 | * imbalance of powers. */
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234 | uint8_t aATAPICmd[ATAPI_PACKET_SIZE];
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235 | uint32_t iATAPILBA, cSectors;
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236 | uint8_t *pbBuf = (uint8_t *)pvBuf;
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237 |
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238 | switch (pbCdb[0])
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239 | {
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240 | case SCSI_READ_10:
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241 | case SCSI_WRITE_10:
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242 | case SCSI_WRITE_AND_VERIFY_10:
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243 | iATAPILBA = scsiBE2H_U32(pbCdb + 2);
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244 | cSectors = scsiBE2H_U16(pbCdb + 7);
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245 | break;
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246 | case SCSI_READ_12:
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247 | case SCSI_WRITE_12:
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248 | iATAPILBA = scsiBE2H_U32(pbCdb + 2);
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249 | cSectors = scsiBE2H_U32(pbCdb + 6);
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250 | break;
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251 | case SCSI_READ_CD:
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252 | iATAPILBA = scsiBE2H_U32(pbCdb + 2);
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253 | cSectors = scsiBE2H_U24(pbCdb + 6);
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254 | break;
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255 | case SCSI_READ_CD_MSF:
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256 | iATAPILBA = scsiMSF2LBA(pbCdb + 3);
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257 | cSectors = scsiMSF2LBA(pbCdb + 6) - iATAPILBA;
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258 | break;
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259 | default:
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260 | AssertMsgFailed(("Don't know how to split command %#04x\n", pbCdb[0]));
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261 | LogRelMax(10, ("HostDVD#%u: CD-ROM passthrough split error\n", pThis->Core.pDrvIns->iInstance));
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262 | *pu8ScsiSts = drvHostDvdCmdErrorSimple(pThis, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_ILLEGAL_OPCODE);
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263 | rc = drvHostBaseBufferRelease(&pThis->Core, pReq, cbBuf, enmXferDir == PDMMEDIATXDIR_TO_DEVICE, pvBuf);
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264 | RTCritSectLeave(&pThis->Core.CritSect);
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265 | return VINF_SUCCESS;
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266 | }
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267 | memcpy(aATAPICmd, pbCdb, RT_MIN(cbCdb, ATAPI_PACKET_SIZE));
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268 | uint32_t cReqSectors = 0;
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269 | for (uint32_t i = cSectors; i > 0; i -= cReqSectors)
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270 | {
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271 | if (i * cbSector > cbScsiCmdBufLimit)
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272 | cReqSectors = (uint32_t)(cbScsiCmdBufLimit / cbSector);
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273 | else
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274 | cReqSectors = i;
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275 | uint32_t cbCurrTX = (uint32_t)cbSector * cReqSectors;
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276 | switch (pbCdb[0])
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277 | {
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278 | case SCSI_READ_10:
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279 | case SCSI_WRITE_10:
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280 | case SCSI_WRITE_AND_VERIFY_10:
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281 | scsiH2BE_U32(aATAPICmd + 2, iATAPILBA);
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282 | scsiH2BE_U16(aATAPICmd + 7, cReqSectors);
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283 | break;
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284 | case SCSI_READ_12:
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285 | case SCSI_WRITE_12:
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286 | scsiH2BE_U32(aATAPICmd + 2, iATAPILBA);
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287 | scsiH2BE_U32(aATAPICmd + 6, cReqSectors);
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288 | break;
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289 | case SCSI_READ_CD:
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290 | scsiH2BE_U32(aATAPICmd + 2, iATAPILBA);
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291 | scsiH2BE_U24(aATAPICmd + 6, cReqSectors);
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292 | break;
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293 | case SCSI_READ_CD_MSF:
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294 | scsiLBA2MSF(aATAPICmd + 3, iATAPILBA);
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295 | scsiLBA2MSF(aATAPICmd + 6, iATAPILBA + cReqSectors);
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296 | break;
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297 | }
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298 | rc = drvHostBaseScsiCmdOs(&pThis->Core, aATAPICmd, sizeof(aATAPICmd),
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299 | enmXferDir, pbBuf, &cbCurrTX,
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300 | &pThis->abATAPISense[0], sizeof(pThis->abATAPISense),
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301 | cTimeoutMillies /**< @todo timeout */);
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302 | if (rc != VINF_SUCCESS)
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303 | break;
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304 |
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305 | pReq->cbResidual -= cbCurrTX;
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306 | iATAPILBA += cReqSectors;
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307 | pbBuf += cbSector * cReqSectors;
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308 | }
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309 | }
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310 | else
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311 | {
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312 | uint32_t cbXferTmp = (uint32_t)cbXferCur;
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313 | rc = drvHostBaseScsiCmdOs(&pThis->Core, pbCdb, cbCdb, enmXferDir, pvBuf, &cbXferTmp,
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314 | &pThis->abATAPISense[0], sizeof(pThis->abATAPISense), cTimeoutMillies);
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315 | if (RT_SUCCESS(rc))
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316 | pReq->cbResidual -= cbXferTmp;
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317 | }
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318 |
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319 | if (RT_SUCCESS(rc))
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320 | {
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321 | /* Do post processing for certain commands. */
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322 | switch (pbCdb[0])
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323 | {
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324 | case SCSI_SEND_CUE_SHEET:
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325 | case SCSI_READ_TOC_PMA_ATIP:
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326 | {
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327 | if (!pThis->pTrackList)
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328 | rc = ATAPIPassthroughTrackListCreateEmpty(&pThis->pTrackList);
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329 |
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330 | if (RT_SUCCESS(rc))
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331 | rc = ATAPIPassthroughTrackListUpdate(pThis->pTrackList, pbCdb, pvBuf);
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332 |
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333 | if (RT_FAILURE(rc))
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334 | LogRelMax(10, ("HostDVD#%u: Error (%Rrc) while updating the tracklist during %s, burning the disc might fail\n",
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335 | pThis->Core.pDrvIns->iInstance, rc,
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336 | pbCdb[0] == SCSI_SEND_CUE_SHEET ? "SEND CUE SHEET" : "READ TOC/PMA/ATIP"));
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337 | break;
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338 | }
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339 | case SCSI_SYNCHRONIZE_CACHE:
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340 | {
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341 | if (pThis->pTrackList)
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342 | ATAPIPassthroughTrackListClear(pThis->pTrackList);
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343 | break;
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344 | }
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345 | }
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346 |
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347 | if (enmXferDir == PDMMEDIATXDIR_FROM_DEVICE)
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348 | {
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349 | Assert(cbXferCur <= cbXfer);
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350 |
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351 | if ( pbCdb[0] == SCSI_INQUIRY
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352 | && pThis->fInquiryOverwrite)
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353 | {
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354 | const char *pszInqVendorId = "VBOX";
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355 | const char *pszInqProductId = "CD-ROM";
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356 | const char *pszInqRevision = "1.0";
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357 |
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358 | if (pThis->Core.pDrvMediaPort->pfnQueryScsiInqStrings)
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359 | {
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360 | rc = pThis->Core.pDrvMediaPort->pfnQueryScsiInqStrings(pThis->Core.pDrvMediaPort, &pszInqVendorId,
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361 | &pszInqProductId, &pszInqRevision);
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362 | AssertRC(rc);
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363 | }
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364 | /* Make sure that the real drive cannot be identified.
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365 | * Motivation: changing the VM configuration should be as
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366 | * invisible as possible to the guest. */
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367 | if (cbXferCur >= 8 + 8)
|
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368 | scsiPadStr((uint8_t *)pvBuf + 8, pszInqVendorId, 8);
|
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369 | if (cbXferCur >= 16 + 16)
|
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370 | scsiPadStr((uint8_t *)pvBuf + 16, pszInqProductId, 16);
|
---|
371 | if (cbXferCur >= 32 + 4)
|
---|
372 | scsiPadStr((uint8_t *)pvBuf + 32, pszInqRevision, 4);
|
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373 | }
|
---|
374 |
|
---|
375 | if (cbXferCur)
|
---|
376 | Log3(("ATAPI PT data read (%d): %.*Rhxs\n", cbXferCur, cbXferCur, (uint8_t *)pvBuf));
|
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377 | }
|
---|
378 |
|
---|
379 | *pu8ScsiSts = drvHostDvdCmdOK(pThis);
|
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380 | }
|
---|
381 | else
|
---|
382 | {
|
---|
383 | do
|
---|
384 | {
|
---|
385 | /* don't log superfluous errors */
|
---|
386 | if ( rc == VERR_DEV_IO_ERROR
|
---|
387 | && ( pbCdb[0] == SCSI_TEST_UNIT_READY
|
---|
388 | || pbCdb[0] == SCSI_READ_CAPACITY
|
---|
389 | || pbCdb[0] == SCSI_READ_DVD_STRUCTURE
|
---|
390 | || pbCdb[0] == SCSI_READ_TOC_PMA_ATIP))
|
---|
391 | break;
|
---|
392 | LogRelMax(10, ("HostDVD#%u: CD-ROM passthrough cmd=%#04x sense=%d ASC=%#02x ASCQ=%#02x %Rrc\n",
|
---|
393 | pThis->Core.pDrvIns->iInstance, pbCdb[0], pThis->abATAPISense[2] & 0x0f,
|
---|
394 | pThis->abATAPISense[12], pThis->abATAPISense[13], rc));
|
---|
395 | } while (0);
|
---|
396 | *pu8ScsiSts = SCSI_STATUS_CHECK_CONDITION;
|
---|
397 | rc = VINF_SUCCESS;
|
---|
398 | }
|
---|
399 |
|
---|
400 | if (cbXfer)
|
---|
401 | rc = drvHostBaseBufferRelease(&pThis->Core, pReq, cbXfer, enmXferDir == PDMMEDIATXDIR_TO_DEVICE, pvBuf);
|
---|
402 | }
|
---|
403 |
|
---|
404 | /*
|
---|
405 | * We handled the command, check the status code and copy over the sense data if
|
---|
406 | * it is CHECK CONDITION.
|
---|
407 | */
|
---|
408 | if ( *pu8ScsiSts == SCSI_STATUS_CHECK_CONDITION
|
---|
409 | && VALID_PTR(pabSense)
|
---|
410 | && cbSense > 0)
|
---|
411 | memcpy(pabSense, &pThis->abATAPISense[0], RT_MIN(cbSense, sizeof(pThis->abATAPISense)));
|
---|
412 |
|
---|
413 | RTCritSectLeave(&pThis->Core.CritSect);
|
---|
414 |
|
---|
415 | LogFlow(("%s: rc=%Rrc\n", __FUNCTION__, rc));
|
---|
416 | return rc;
|
---|
417 | }
|
---|
418 |
|
---|
419 |
|
---|
420 | /* -=-=-=-=- driver interface -=-=-=-=- */
|
---|
421 |
|
---|
422 |
|
---|
423 | /** @interface_method_impl{PDMDRVREG,pfnDestruct} */
|
---|
424 | static DECLCALLBACK(void) drvHostDvdDestruct(PPDMDRVINS pDrvIns)
|
---|
425 | {
|
---|
426 | PDRVHOSTDVD pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTDVD);
|
---|
427 |
|
---|
428 | if (pThis->pTrackList)
|
---|
429 | {
|
---|
430 | ATAPIPassthroughTrackListDestroy(pThis->pTrackList);
|
---|
431 | pThis->pTrackList = NULL;
|
---|
432 | }
|
---|
433 |
|
---|
434 | DRVHostBaseDestruct(pDrvIns);
|
---|
435 | }
|
---|
436 |
|
---|
437 | /**
|
---|
438 | * Construct a host dvd drive driver instance.
|
---|
439 | *
|
---|
440 | * @copydoc FNPDMDRVCONSTRUCT
|
---|
441 | */
|
---|
442 | static DECLCALLBACK(int) drvHostDvdConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
|
---|
443 | {
|
---|
444 | RT_NOREF(fFlags);
|
---|
445 | PDRVHOSTDVD pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTDVD);
|
---|
446 | LogFlow(("drvHostDvdConstruct: iInstance=%d\n", pDrvIns->iInstance));
|
---|
447 |
|
---|
448 | int rc = CFGMR3QueryBoolDef(pCfg, "InquiryOverwrite", &pThis->fInquiryOverwrite, true);
|
---|
449 | if (RT_FAILURE(rc))
|
---|
450 | return PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
451 | N_("HostDVD configuration error: failed to read \"InquiryOverwrite\" as boolean"));
|
---|
452 |
|
---|
453 | bool fPassthrough;
|
---|
454 | rc = CFGMR3QueryBool(pCfg, "Passthrough", &fPassthrough);
|
---|
455 | if (RT_SUCCESS(rc) && fPassthrough)
|
---|
456 | {
|
---|
457 | pThis->Core.IMedia.pfnSendCmd = drvHostDvdSendCmd;
|
---|
458 | pThis->Core.IMediaEx.pfnIoReqSendScsiCmd = drvHostDvdIoReqSendScsiCmd;
|
---|
459 | /* Passthrough requires opening the device in R/W mode. */
|
---|
460 | pThis->Core.fReadOnlyConfig = false;
|
---|
461 | }
|
---|
462 |
|
---|
463 | pThis->Core.pfnDoLock = drvHostDvdDoLock;
|
---|
464 |
|
---|
465 | /*
|
---|
466 | * Init instance data.
|
---|
467 | */
|
---|
468 | rc = DRVHostBaseInit(pDrvIns, pCfg, "Path\0Interval\0Locked\0BIOSVisible\0AttachFailError\0Passthrough\0InquiryOverwrite\0",
|
---|
469 | PDMMEDIATYPE_DVD);
|
---|
470 | LogFlow(("drvHostDvdConstruct: returns %Rrc\n", rc));
|
---|
471 | return rc;
|
---|
472 | }
|
---|
473 |
|
---|
474 |
|
---|
475 | /**
|
---|
476 | * Block driver registration record.
|
---|
477 | */
|
---|
478 | const PDMDRVREG g_DrvHostDVD =
|
---|
479 | {
|
---|
480 | /* u32Version */
|
---|
481 | PDM_DRVREG_VERSION,
|
---|
482 | /* szName */
|
---|
483 | "HostDVD",
|
---|
484 | /* szRCMod */
|
---|
485 | "",
|
---|
486 | /* szR0Mod */
|
---|
487 | "",
|
---|
488 | /* pszDescription */
|
---|
489 | "Host DVD Block Driver.",
|
---|
490 | /* fFlags */
|
---|
491 | PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
|
---|
492 | /* fClass. */
|
---|
493 | PDM_DRVREG_CLASS_BLOCK,
|
---|
494 | /* cMaxInstances */
|
---|
495 | ~0U,
|
---|
496 | /* cbInstance */
|
---|
497 | sizeof(DRVHOSTDVD),
|
---|
498 | /* pfnConstruct */
|
---|
499 | drvHostDvdConstruct,
|
---|
500 | /* pfnDestruct */
|
---|
501 | drvHostDvdDestruct,
|
---|
502 | /* pfnRelocate */
|
---|
503 | NULL,
|
---|
504 | /* pfnIOCtl */
|
---|
505 | NULL,
|
---|
506 | /* pfnPowerOn */
|
---|
507 | NULL,
|
---|
508 | /* pfnReset */
|
---|
509 | NULL,
|
---|
510 | /* pfnSuspend */
|
---|
511 | NULL,
|
---|
512 | /* pfnResume */
|
---|
513 | NULL,
|
---|
514 | /* pfnAttach */
|
---|
515 | NULL,
|
---|
516 | /* pfnDetach */
|
---|
517 | NULL,
|
---|
518 | /* pfnPowerOff */
|
---|
519 | NULL,
|
---|
520 | /* pfnSoftReset */
|
---|
521 | NULL,
|
---|
522 | /* u32EndVersion */
|
---|
523 | PDM_DRVREG_VERSION
|
---|
524 | };
|
---|
525 |
|
---|