/* $Id: ATAPIPassthrough.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */ /** @file * VBox storage devices: ATAPI emulation (common code for DevATA and DevAHCI). */ /* * Copyright (C) 2012-2020 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. */ #define LOG_GROUP LOG_GROUP_DEV_IDE #include #include #include #include #include #include #include #include #include #include "ATAPIPassthrough.h" /** The track was not detected yet. */ #define TRACK_FLAGS_UNDETECTED RT_BIT_32(0) /** The track is the lead in track of the medium. */ #define TRACK_FLAGS_LEAD_IN RT_BIT_32(1) /** The track is the lead out track of the medium. */ #define TRACK_FLAGS_LEAD_OUT RT_BIT_32(2) /** Don't clear already detected tracks on the medium. */ #define ATAPI_TRACK_LIST_REALLOCATE_FLAGS_DONT_CLEAR RT_BIT_32(0) /** * Track main data form. */ typedef enum TRACKDATAFORM { /** Invalid data form. */ TRACKDATAFORM_INVALID = 0, /** 2352 bytes of data. */ TRACKDATAFORM_CDDA, /** CDDA data is pause. */ TRACKDATAFORM_CDDA_PAUSE, /** Mode 1 with 2048 bytes sector size. */ TRACKDATAFORM_MODE1_2048, /** Mode 1 with 2352 bytes sector size. */ TRACKDATAFORM_MODE1_2352, /** Mode 1 with 0 bytes sector size (generated by the drive). */ TRACKDATAFORM_MODE1_0, /** XA Mode with 2336 bytes sector size. */ TRACKDATAFORM_XA_2336, /** XA Mode with 2352 bytes sector size. */ TRACKDATAFORM_XA_2352, /** XA Mode with 0 bytes sector size (generated by the drive). */ TRACKDATAFORM_XA_0, /** Mode 2 with 2336 bytes sector size. */ TRACKDATAFORM_MODE2_2336, /** Mode 2 with 2352 bytes sector size. */ TRACKDATAFORM_MODE2_2352, /** Mode 2 with 0 bytes sector size (generated by the drive). */ TRACKDATAFORM_MODE2_0 } TRACKDATAFORM; /** * Subchannel data form. */ typedef enum SUBCHNDATAFORM { /** Invalid subchannel data form. */ SUBCHNDATAFORM_INVALID = 0, /** 0 bytes for the subchannel (generated by the drive). */ SUBCHNDATAFORM_0, /** 96 bytes of data for the subchannel. */ SUBCHNDATAFORM_96 } SUBCHNDATAFORM; /** * Track entry. */ typedef struct TRACK { /** Start LBA of the track. */ int64_t iLbaStart; /** Number of sectors in the track. */ uint32_t cSectors; /** Data form of main data. */ TRACKDATAFORM enmMainDataForm; /** Data form of sub channel. */ SUBCHNDATAFORM enmSubChnDataForm; /** Flags for the track. */ uint32_t fFlags; } TRACK, *PTRACK; /** * Media track list. */ typedef struct TRACKLIST { /** Number of detected tracks of the current medium. */ unsigned cTracksCurrent; /** Maximum number of tracks the list can contain. */ unsigned cTracksMax; /** Variable list of tracks. */ PTRACK paTracks; } TRACKLIST, *PTRACKLIST; /** * Reallocate the given track list to be able to hold the given number of tracks. * * @returns VBox status code. * @param pTrackList The track list to reallocate. * @param cTracks Number of tracks the list must be able to hold. * @param fFlags Flags for the reallocation. */ static int atapiTrackListReallocate(PTRACKLIST pTrackList, unsigned cTracks, uint32_t fFlags) { int rc = VINF_SUCCESS; if (!(fFlags & ATAPI_TRACK_LIST_REALLOCATE_FLAGS_DONT_CLEAR)) ATAPIPassthroughTrackListClear(pTrackList); if (pTrackList->cTracksMax < cTracks) { PTRACK paTracksNew = (PTRACK)RTMemRealloc(pTrackList->paTracks, cTracks * sizeof(TRACK)); if (paTracksNew) { pTrackList->paTracks = paTracksNew; /* Mark new tracks as undetected. */ for (unsigned i = pTrackList->cTracksMax; i < cTracks; i++) pTrackList->paTracks[i].fFlags |= TRACK_FLAGS_UNDETECTED; pTrackList->cTracksMax = cTracks; } else rc = VERR_NO_MEMORY; } if (RT_SUCCESS(rc)) pTrackList->cTracksCurrent = cTracks; return rc; } /** * Initilizes the given track from the given CUE sheet entry. * * @returns nothing. * @param pTrack The track to initialize. * @param pbCueSheetEntry CUE sheet entry to use. */ static void atapiTrackListEntryCreateFromCueSheetEntry(PTRACK pTrack, const uint8_t *pbCueSheetEntry) { TRACKDATAFORM enmTrackDataForm = TRACKDATAFORM_INVALID; SUBCHNDATAFORM enmSubChnDataForm = SUBCHNDATAFORM_INVALID; /* Determine size of main data based on the data form field. */ switch (pbCueSheetEntry[3] & 0x3f) { case 0x00: /* CD-DA with data. */ enmTrackDataForm = TRACKDATAFORM_CDDA; break; case 0x01: /* CD-DA without data (used for pauses between tracks). */ enmTrackDataForm = TRACKDATAFORM_CDDA_PAUSE; break; case 0x10: /* CD-ROM mode 1 */ case 0x12: enmTrackDataForm = TRACKDATAFORM_MODE1_2048; break; case 0x11: case 0x13: enmTrackDataForm = TRACKDATAFORM_MODE1_2352; break; case 0x14: enmTrackDataForm = TRACKDATAFORM_MODE1_0; break; case 0x20: /* CD-ROM XA, CD-I */ case 0x22: enmTrackDataForm = TRACKDATAFORM_XA_2336; break; case 0x21: case 0x23: enmTrackDataForm = TRACKDATAFORM_XA_2352; break; case 0x24: enmTrackDataForm = TRACKDATAFORM_XA_0; break; case 0x31: /* CD-ROM Mode 2 */ case 0x33: enmTrackDataForm = TRACKDATAFORM_MODE2_2352; break; case 0x30: case 0x32: enmTrackDataForm = TRACKDATAFORM_MODE2_2336; break; case 0x34: enmTrackDataForm = TRACKDATAFORM_MODE2_0; break; default: /* Reserved, invalid mode. Log and leave default sector size. */ LogRel(("ATA: Invalid data form mode %d for current CUE sheet\n", pbCueSheetEntry[3] & 0x3f)); } /* Determine size of sub channel data based on data form field. */ switch ((pbCueSheetEntry[3] & 0xc0) >> 6) { case 0x00: /* Sub channel all zeroes, autogenerated by the drive. */ enmSubChnDataForm = SUBCHNDATAFORM_0; break; case 0x01: case 0x03: enmSubChnDataForm = SUBCHNDATAFORM_96; break; default: LogRel(("ATA: Invalid sub-channel data form mode %u for current CUE sheet\n", pbCueSheetEntry[3] & 0xc0)); } pTrack->enmMainDataForm = enmTrackDataForm; pTrack->enmSubChnDataForm = enmSubChnDataForm; pTrack->iLbaStart = scsiMSF2LBA(&pbCueSheetEntry[5]); if (pbCueSheetEntry[1] != 0xaa) { /* Calculate number of sectors from the next entry. */ int64_t iLbaNext = scsiMSF2LBA(&pbCueSheetEntry[5+8]); pTrack->cSectors = iLbaNext - pTrack->iLbaStart; } else { pTrack->fFlags |= TRACK_FLAGS_LEAD_OUT; pTrack->cSectors = 0; } pTrack->fFlags &= ~TRACK_FLAGS_UNDETECTED; } /** * Update the track list from a SEND CUE SHEET request. * * @returns VBox status code. * @param pTrackList Track list to update. * @param pbCDB CDB of the SEND CUE SHEET request. * @param pvBuf The CUE sheet. * @param cbBuf The buffer size (max). */ static int atapiTrackListUpdateFromSendCueSheet(PTRACKLIST pTrackList, const uint8_t *pbCDB, const void *pvBuf, size_t cbBuf) { int rc; unsigned cbCueSheet = scsiBE2H_U24(pbCDB + 6); unsigned cTracks = cbCueSheet / 8; AssertReturn(cbCueSheet % 8 == 0 && cTracks, VERR_INVALID_PARAMETER); rc = atapiTrackListReallocate(pTrackList, cTracks, 0); if (RT_SUCCESS(rc)) { const uint8_t *pbCueSheet = (uint8_t *)pvBuf; PTRACK pTrack = pTrackList->paTracks; AssertLogRelReturn(cTracks <= cbBuf, VERR_BUFFER_OVERFLOW); for (unsigned i = 0; i < cTracks; i++) { atapiTrackListEntryCreateFromCueSheetEntry(pTrack, pbCueSheet); if (i == 0) pTrack->fFlags |= TRACK_FLAGS_LEAD_IN; pTrack++; pbCueSheet += 8; } } return rc; } static int atapiTrackListUpdateFromSendDvdStructure(PTRACKLIST pTrackList, const uint8_t *pbCDB, const void *pvBuf, size_t cbBuf) { RT_NOREF(pTrackList, pbCDB, pvBuf, cbBuf); return VERR_NOT_IMPLEMENTED; } /** * Update track list from formatted TOC data. * * @returns VBox status code. * @param pTrackList The track list to update. * @param iTrack The first track the TOC has data for. * @param fMSF Flag whether block addresses are in MSF or LBA format. * @param pbBuf Buffer holding the formatted TOC. * @param cbBuffer Size of the buffer. */ static int atapiTrackListUpdateFromFormattedToc(PTRACKLIST pTrackList, uint8_t iTrack, bool fMSF, const uint8_t *pbBuf, uint32_t cbBuffer) { RT_NOREF(iTrack, cbBuffer); /** @todo unused parameters */ int rc; unsigned cbToc = scsiBE2H_U16(pbBuf); uint8_t iTrackFirst = pbBuf[2]; unsigned cTracks; cbToc -= 2; pbBuf += 4; AssertReturn(cbToc % 8 == 0, VERR_INVALID_PARAMETER); cTracks = cbToc / 8 + iTrackFirst; rc = atapiTrackListReallocate(pTrackList, iTrackFirst + cTracks, ATAPI_TRACK_LIST_REALLOCATE_FLAGS_DONT_CLEAR); if (RT_SUCCESS(rc)) { PTRACK pTrack = &pTrackList->paTracks[iTrackFirst]; for (unsigned i = iTrackFirst; i < cTracks; i++) { if (pbBuf[1] & 0x4) pTrack->enmMainDataForm = TRACKDATAFORM_MODE1_2048; else pTrack->enmMainDataForm = TRACKDATAFORM_CDDA; pTrack->enmSubChnDataForm = SUBCHNDATAFORM_0; if (fMSF) pTrack->iLbaStart = scsiMSF2LBA(&pbBuf[4]); else pTrack->iLbaStart = scsiBE2H_U32(&pbBuf[4]); if (pbBuf[2] != 0xaa) { /* Calculate number of sectors from the next entry. */ int64_t iLbaNext; if (fMSF) iLbaNext = scsiMSF2LBA(&pbBuf[4+8]); else iLbaNext = scsiBE2H_U32(&pbBuf[4+8]); pTrack->cSectors = iLbaNext - pTrack->iLbaStart; } else pTrack->cSectors = 0; pTrack->fFlags &= ~TRACK_FLAGS_UNDETECTED; pbBuf += 8; pTrack++; } } return rc; } static int atapiTrackListUpdateFromReadTocPmaAtip(PTRACKLIST pTrackList, const uint8_t *pbCDB, const void *pvBuf, size_t cbBuf) { int rc; uint16_t cbBuffer = (uint16_t)RT_MIN(scsiBE2H_U16(&pbCDB[7]), cbBuf); bool fMSF = (pbCDB[1] & 0x2) != 0; uint8_t uFmt = pbCDB[2] & 0xf; uint8_t iTrack = pbCDB[6]; switch (uFmt) { case 0x00: rc = atapiTrackListUpdateFromFormattedToc(pTrackList, iTrack, fMSF, (uint8_t *)pvBuf, cbBuffer); break; case 0x01: case 0x02: case 0x03: case 0x04: rc = VERR_NOT_IMPLEMENTED; break; case 0x05: rc = VINF_SUCCESS; /* Does not give information about the tracklist. */ break; default: rc = VERR_INVALID_PARAMETER; } return rc; } static int atapiTrackListUpdateFromReadTrackInformation(PTRACKLIST pTrackList, const uint8_t *pbCDB, const void *pvBuf, size_t cbBuf) { RT_NOREF(pTrackList, pbCDB, pvBuf, cbBuf); return VERR_NOT_IMPLEMENTED; } static int atapiTrackListUpdateFromReadDvdStructure(PTRACKLIST pTrackList, const uint8_t *pbCDB, const void *pvBuf, size_t cbBuf) { RT_NOREF(pTrackList, pbCDB, pvBuf, cbBuf); return VERR_NOT_IMPLEMENTED; } static int atapiTrackListUpdateFromReadDiscInformation(PTRACKLIST pTrackList, const uint8_t *pbCDB, const void *pvBuf, size_t cbBuf) { RT_NOREF(pTrackList, pbCDB, pvBuf, cbBuf); return VERR_NOT_IMPLEMENTED; } #ifdef LOG_ENABLED /** * Converts the given track data form to a string. * * @returns Track data form as a string. * @param enmTrackDataForm The track main data form. */ static const char *atapiTrackListMainDataFormToString(TRACKDATAFORM enmTrackDataForm) { switch (enmTrackDataForm) { case TRACKDATAFORM_CDDA: return "CD-DA"; case TRACKDATAFORM_CDDA_PAUSE: return "CD-DA Pause"; case TRACKDATAFORM_MODE1_2048: return "Mode 1 (2048 bytes)"; case TRACKDATAFORM_MODE1_2352: return "Mode 1 (2352 bytes)"; case TRACKDATAFORM_MODE1_0: return "Mode 1 (0 bytes)"; case TRACKDATAFORM_XA_2336: return "XA (2336 bytes)"; case TRACKDATAFORM_XA_2352: return "XA (2352 bytes)"; case TRACKDATAFORM_XA_0: return "XA (0 bytes)"; case TRACKDATAFORM_MODE2_2336: return "Mode 2 (2336 bytes)"; case TRACKDATAFORM_MODE2_2352: return "Mode 2 (2352 bytes)"; case TRACKDATAFORM_MODE2_0: return "Mode 2 (0 bytes)"; case TRACKDATAFORM_INVALID: default: return "Invalid"; } } /** * Converts the given subchannel data form to a string. * * @returns Subchannel data form as a string. * @param enmSubChnDataForm The subchannel main data form. */ static const char *atapiTrackListSubChnDataFormToString(SUBCHNDATAFORM enmSubChnDataForm) { switch (enmSubChnDataForm) { case SUBCHNDATAFORM_0: return "0"; case SUBCHNDATAFORM_96: return "96"; case SUBCHNDATAFORM_INVALID: default: return "Invalid"; } } /** * Dump the complete track list to the release log. * * @returns nothing. * @param pTrackList The track list to dump. */ static void atapiTrackListDump(PTRACKLIST pTrackList) { LogRel(("Track List: cTracks=%u\n", pTrackList->cTracksCurrent)); for (unsigned i = 0; i < pTrackList->cTracksCurrent; i++) { PTRACK pTrack = &pTrackList->paTracks[i]; LogRel((" Track %u: LBAStart=%lld cSectors=%u enmMainDataForm=%s enmSubChnDataForm=%s fFlags=[%s%s%s]\n", i, pTrack->iLbaStart, pTrack->cSectors, atapiTrackListMainDataFormToString(pTrack->enmMainDataForm), atapiTrackListSubChnDataFormToString(pTrack->enmSubChnDataForm), pTrack->fFlags & TRACK_FLAGS_UNDETECTED ? "UNDETECTED " : "", pTrack->fFlags & TRACK_FLAGS_LEAD_IN ? "Lead-In " : "", pTrack->fFlags & TRACK_FLAGS_LEAD_OUT ? "Lead-Out" : "")); } } #endif /* LOG_ENABLED */ /** * Creates an empty track list handle. * * @returns VBox status code. * @param ppTrackList Where to store the track list handle on success. */ DECLHIDDEN(int) ATAPIPassthroughTrackListCreateEmpty(PTRACKLIST *ppTrackList) { PTRACKLIST pTrackList = (PTRACKLIST)RTMemAllocZ(sizeof(TRACKLIST)); if (pTrackList) { *ppTrackList = pTrackList; return VINF_SUCCESS; } return VERR_NO_MEMORY; } /** * Destroys the allocated task list handle. * * @returns nothing. * @param pTrackList The track list handle to destroy. */ DECLHIDDEN(void) ATAPIPassthroughTrackListDestroy(PTRACKLIST pTrackList) { if (pTrackList->paTracks) RTMemFree(pTrackList->paTracks); RTMemFree(pTrackList); } /** * Clears all tracks from the given task list. * * @returns nothing. * @param pTrackList The track list to clear. */ DECLHIDDEN(void) ATAPIPassthroughTrackListClear(PTRACKLIST pTrackList) { AssertPtrReturnVoid(pTrackList); pTrackList->cTracksCurrent = 0; /* Mark all tracks as undetected. */ for (unsigned i = 0; i < pTrackList->cTracksMax; i++) pTrackList->paTracks[i].fFlags |= TRACK_FLAGS_UNDETECTED; } /** * Updates the track list from the given CDB and data buffer. * * @returns VBox status code. * @param pTrackList The track list to update. * @param pbCDB The CDB buffer. * @param pvBuf The data buffer. * @param cbBuf The buffer isze. */ DECLHIDDEN(int) ATAPIPassthroughTrackListUpdate(PTRACKLIST pTrackList, const uint8_t *pbCDB, const void *pvBuf, size_t cbBuf) { int rc; switch (pbCDB[0]) { case SCSI_SEND_CUE_SHEET: rc = atapiTrackListUpdateFromSendCueSheet(pTrackList, pbCDB, pvBuf, cbBuf); break; case SCSI_SEND_DVD_STRUCTURE: rc = atapiTrackListUpdateFromSendDvdStructure(pTrackList, pbCDB, pvBuf, cbBuf); break; case SCSI_READ_TOC_PMA_ATIP: rc = atapiTrackListUpdateFromReadTocPmaAtip(pTrackList, pbCDB, pvBuf, cbBuf); break; case SCSI_READ_TRACK_INFORMATION: rc = atapiTrackListUpdateFromReadTrackInformation(pTrackList, pbCDB, pvBuf, cbBuf); break; case SCSI_READ_DVD_STRUCTURE: rc = atapiTrackListUpdateFromReadDvdStructure(pTrackList, pbCDB, pvBuf, cbBuf); break; case SCSI_READ_DISC_INFORMATION: rc = atapiTrackListUpdateFromReadDiscInformation(pTrackList, pbCDB, pvBuf, cbBuf); break; default: LogRel(("ATAPI: Invalid opcode %#x while determining media layout\n", pbCDB[0])); rc = VERR_INVALID_PARAMETER; } #ifdef LOG_ENABLED atapiTrackListDump(pTrackList); #endif return rc; } /** * Return the sector size from the track matching the LBA in the given track list. * * @returns Sector size. * @param pTrackList The track list to use. * @param iAtapiLba The start LBA to get the sector size for. */ DECLHIDDEN(uint32_t) ATAPIPassthroughTrackListGetSectorSizeFromLba(PTRACKLIST pTrackList, uint32_t iAtapiLba) { PTRACK pTrack = NULL; uint32_t cbAtapiSector = 2048; if (pTrackList->cTracksCurrent) { if ( iAtapiLba > UINT32_C(0xffff4fa1) && (int32_t)iAtapiLba < -150) { /* Lead-In area, this is always the first entry in the cue sheet. */ pTrack = pTrackList->paTracks; Assert(pTrack->fFlags & TRACK_FLAGS_LEAD_IN); LogFlowFunc(("Selected Lead-In area\n")); } else { int64_t iAtapiLba64 = (int32_t)iAtapiLba; pTrack = &pTrackList->paTracks[1]; /* Go through the track list and find the correct entry. */ for (unsigned i = 1; i < pTrackList->cTracksCurrent - 1; i++) { if (pTrack->fFlags & TRACK_FLAGS_UNDETECTED) continue; if ( pTrack->iLbaStart <= iAtapiLba64 && iAtapiLba64 < pTrack->iLbaStart + pTrack->cSectors) break; pTrack++; } } if (pTrack) { switch (pTrack->enmMainDataForm) { case TRACKDATAFORM_CDDA: case TRACKDATAFORM_MODE1_2352: case TRACKDATAFORM_XA_2352: case TRACKDATAFORM_MODE2_2352: cbAtapiSector = 2352; break; case TRACKDATAFORM_MODE1_2048: cbAtapiSector = 2048; break; case TRACKDATAFORM_CDDA_PAUSE: case TRACKDATAFORM_MODE1_0: case TRACKDATAFORM_XA_0: case TRACKDATAFORM_MODE2_0: cbAtapiSector = 0; break; case TRACKDATAFORM_XA_2336: case TRACKDATAFORM_MODE2_2336: cbAtapiSector = 2336; break; case TRACKDATAFORM_INVALID: default: AssertMsgFailed(("Invalid track data form %d\n", pTrack->enmMainDataForm)); } switch (pTrack->enmSubChnDataForm) { case SUBCHNDATAFORM_0: break; case SUBCHNDATAFORM_96: cbAtapiSector += 96; break; case SUBCHNDATAFORM_INVALID: default: AssertMsgFailed(("Invalid subchannel data form %d\n", pTrack->enmSubChnDataForm)); } } } return cbAtapiSector; } static uint8_t atapiPassthroughCmdErrorSimple(uint8_t *pbSense, size_t cbSense, uint8_t uATAPISenseKey, uint8_t uATAPIASC) { memset(pbSense, '\0', cbSense); if (RT_LIKELY(cbSense >= 13)) { pbSense[0] = 0x70 | (1 << 7); pbSense[2] = uATAPISenseKey & 0x0f; pbSense[7] = 10; pbSense[12] = uATAPIASC; } return SCSI_STATUS_CHECK_CONDITION; } /** * Parses the given CDB and returns whether it is safe to pass it through to the host drive. * * @returns Flag whether passing the CDB through to the host drive is safe. * @param pbCdb The CDB to parse. * @param cbCdb Size of the CDB in bytes. * @param cbBuf Size of the guest buffer. * @param pTrackList The track list for the current medium if available (optional). * @param pbSense Pointer to the sense buffer. * @param cbSense Size of the sense buffer. * @param penmTxDir Where to store the transfer direction (guest to host or vice versa). * @param pcbXfer Where to store the transfer size encoded in the CDB. * @param pcbSector Where to store the sector size used for the transfer. * @param pu8ScsiSts Where to store the SCSI status code. */ DECLHIDDEN(bool) ATAPIPassthroughParseCdb(const uint8_t *pbCdb, size_t cbCdb, size_t cbBuf, PTRACKLIST pTrackList, uint8_t *pbSense, size_t cbSense, PDMMEDIATXDIR *penmTxDir, size_t *pcbXfer, size_t *pcbSector, uint8_t *pu8ScsiSts) { uint32_t uLba = 0; uint32_t cSectors = 0; size_t cbSector = 0; size_t cbXfer = 0; bool fPassthrough = false; PDMMEDIATXDIR enmTxDir = PDMMEDIATXDIR_NONE; RT_NOREF(cbCdb); switch (pbCdb[0]) { /* First the commands we can pass through without further processing. */ case SCSI_BLANK: case SCSI_CLOSE_TRACK_SESSION: case SCSI_LOAD_UNLOAD_MEDIUM: case SCSI_PAUSE_RESUME: case SCSI_PLAY_AUDIO_10: case SCSI_PLAY_AUDIO_12: case SCSI_PLAY_AUDIO_MSF: case SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL: case SCSI_REPAIR_TRACK: case SCSI_RESERVE_TRACK: case SCSI_SCAN: case SCSI_SEEK_10: case SCSI_SET_CD_SPEED: case SCSI_SET_READ_AHEAD: case SCSI_START_STOP_UNIT: case SCSI_STOP_PLAY_SCAN: case SCSI_SYNCHRONIZE_CACHE: case SCSI_TEST_UNIT_READY: case SCSI_VERIFY_10: fPassthrough = true; break; case SCSI_ERASE_10: uLba = scsiBE2H_U32(pbCdb + 2); cbXfer = scsiBE2H_U16(pbCdb + 7); enmTxDir = PDMMEDIATXDIR_TO_DEVICE; fPassthrough = true; break; case SCSI_FORMAT_UNIT: cbXfer = cbBuf; enmTxDir = PDMMEDIATXDIR_TO_DEVICE; fPassthrough = true; break; case SCSI_GET_CONFIGURATION: cbXfer = scsiBE2H_U16(pbCdb + 7); enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; case SCSI_GET_EVENT_STATUS_NOTIFICATION: cbXfer = scsiBE2H_U16(pbCdb + 7); enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; case SCSI_GET_PERFORMANCE: cbXfer = cbBuf; enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; case SCSI_INQUIRY: cbXfer = scsiBE2H_U16(pbCdb + 3); enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; case SCSI_MECHANISM_STATUS: cbXfer = scsiBE2H_U16(pbCdb + 8); enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; case SCSI_MODE_SELECT_10: cbXfer = scsiBE2H_U16(pbCdb + 7); enmTxDir = PDMMEDIATXDIR_TO_DEVICE; fPassthrough = true; break; case SCSI_MODE_SENSE_10: cbXfer = scsiBE2H_U16(pbCdb + 7); enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; case SCSI_READ_10: uLba = scsiBE2H_U32(pbCdb + 2); cSectors = scsiBE2H_U16(pbCdb + 7); cbSector = 2048; cbXfer = cSectors * cbSector; enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; case SCSI_READ_12: uLba = scsiBE2H_U32(pbCdb + 2); cSectors = scsiBE2H_U32(pbCdb + 6); cbSector = 2048; cbXfer = cSectors * cbSector; enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; case SCSI_READ_BUFFER: cbXfer = scsiBE2H_U24(pbCdb + 6); enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; case SCSI_READ_BUFFER_CAPACITY: cbXfer = scsiBE2H_U16(pbCdb + 7); enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; case SCSI_READ_CAPACITY: cbXfer = 8; enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; case SCSI_READ_CD: case SCSI_READ_CD_MSF: { /* Get sector size based on the expected sector type field. */ switch ((pbCdb[1] >> 2) & 0x7) { case 0x0: /* All types. */ { uint32_t iLbaStart; if (pbCdb[0] == SCSI_READ_CD) iLbaStart = scsiBE2H_U32(&pbCdb[2]); else iLbaStart = scsiMSF2LBA(&pbCdb[3]); if (pTrackList) cbSector = ATAPIPassthroughTrackListGetSectorSizeFromLba(pTrackList, iLbaStart); else cbSector = 2048; /* Might be incorrect if we couldn't determine the type. */ break; } case 0x1: /* CD-DA */ cbSector = 2352; break; case 0x2: /* Mode 1 */ cbSector = 2048; break; case 0x3: /* Mode 2 formless */ cbSector = 2336; break; case 0x4: /* Mode 2 form 1 */ cbSector = 2048; break; case 0x5: /* Mode 2 form 2 */ cbSector = 2324; break; default: /* Reserved */ AssertMsgFailed(("Unknown sector type\n")); cbSector = 0; /** @todo we should probably fail the command here already. */ } if (pbCdb[0] == SCSI_READ_CD) cbXfer = scsiBE2H_U24(pbCdb + 6) * cbSector; else /* SCSI_READ_MSF */ { cSectors = scsiMSF2LBA(pbCdb + 6) - scsiMSF2LBA(pbCdb + 3); if (cSectors > 32) cSectors = 32; /* Limit transfer size to 64~74K. Safety first. In any case this can only harm software doing CDDA extraction. */ cbXfer = cSectors * cbSector; } enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; } case SCSI_READ_DISC_INFORMATION: cbXfer = scsiBE2H_U16(pbCdb + 7); enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; case SCSI_READ_DVD_STRUCTURE: cbXfer = scsiBE2H_U16(pbCdb + 8); enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; case SCSI_READ_FORMAT_CAPACITIES: cbXfer = scsiBE2H_U16(pbCdb + 7); enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; case SCSI_READ_SUBCHANNEL: cbXfer = scsiBE2H_U16(pbCdb + 7); enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; case SCSI_READ_TOC_PMA_ATIP: cbXfer = scsiBE2H_U16(pbCdb + 7); enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; case SCSI_READ_TRACK_INFORMATION: cbXfer = scsiBE2H_U16(pbCdb + 7); enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; case SCSI_REPORT_KEY: cbXfer = scsiBE2H_U16(pbCdb + 8); enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; case SCSI_REQUEST_SENSE: cbXfer = pbCdb[4]; enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; case SCSI_SEND_CUE_SHEET: cbXfer = scsiBE2H_U24(pbCdb + 6); enmTxDir = PDMMEDIATXDIR_TO_DEVICE; fPassthrough = true; break; case SCSI_SEND_DVD_STRUCTURE: cbXfer = scsiBE2H_U16(pbCdb + 8); enmTxDir = PDMMEDIATXDIR_TO_DEVICE; fPassthrough = true; break; case SCSI_SEND_EVENT: cbXfer = scsiBE2H_U16(pbCdb + 8); enmTxDir = PDMMEDIATXDIR_TO_DEVICE; fPassthrough = true; break; case SCSI_SEND_KEY: cbXfer = scsiBE2H_U16(pbCdb + 8); enmTxDir = PDMMEDIATXDIR_TO_DEVICE; fPassthrough = true; break; case SCSI_SEND_OPC_INFORMATION: cbXfer = scsiBE2H_U16(pbCdb + 7); enmTxDir = PDMMEDIATXDIR_TO_DEVICE; fPassthrough = true; break; case SCSI_SET_STREAMING: cbXfer = scsiBE2H_U16(pbCdb + 9); enmTxDir = PDMMEDIATXDIR_TO_DEVICE; fPassthrough = true; break; case SCSI_WRITE_10: case SCSI_WRITE_AND_VERIFY_10: uLba = scsiBE2H_U32(pbCdb + 2); cSectors = scsiBE2H_U16(pbCdb + 7); if (pTrackList) cbSector = ATAPIPassthroughTrackListGetSectorSizeFromLba(pTrackList, uLba); else cbSector = 2048; cbXfer = cSectors * cbSector; enmTxDir = PDMMEDIATXDIR_TO_DEVICE; fPassthrough = true; break; case SCSI_WRITE_12: uLba = scsiBE2H_U32(pbCdb + 2); cSectors = scsiBE2H_U32(pbCdb + 6); if (pTrackList) cbSector = ATAPIPassthroughTrackListGetSectorSizeFromLba(pTrackList, uLba); else cbSector = 2048; cbXfer = cSectors * cbSector; enmTxDir = PDMMEDIATXDIR_TO_DEVICE; fPassthrough = true; break; case SCSI_WRITE_BUFFER: switch (pbCdb[1] & 0x1f) { case 0x04: /* download microcode */ case 0x05: /* download microcode and save */ case 0x06: /* download microcode with offsets */ case 0x07: /* download microcode with offsets and save */ case 0x0e: /* download microcode with offsets and defer activation */ case 0x0f: /* activate deferred microcode */ LogRel(("ATAPI: CD-ROM passthrough command attempted to update firmware, blocked\n")); *pu8ScsiSts = atapiPassthroughCmdErrorSimple(pbSense, cbSense, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_INV_FIELD_IN_CMD_PACKET); break; default: cbXfer = scsiBE2H_U16(pbCdb + 6); enmTxDir = PDMMEDIATXDIR_TO_DEVICE; fPassthrough = true; break; } break; case SCSI_REPORT_LUNS: /* Not part of MMC-3, but used by Windows. */ cbXfer = scsiBE2H_U32(pbCdb + 6); enmTxDir = PDMMEDIATXDIR_FROM_DEVICE; fPassthrough = true; break; case SCSI_REZERO_UNIT: /* Obsolete command used by cdrecord. What else would one expect? * This command is not sent to the drive, it is handled internally, * as the Linux kernel doesn't like it (message "scsi: unknown * opcode 0x01" in syslog) and replies with a sense code of 0, * which sends cdrecord to an endless loop. */ *pu8ScsiSts = atapiPassthroughCmdErrorSimple(pbSense, cbSense, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_ILLEGAL_OPCODE); break; default: LogRel(("ATAPI: Passthrough unimplemented for command %#x\n", pbCdb[0])); *pu8ScsiSts = atapiPassthroughCmdErrorSimple(pbSense, cbSense, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_ILLEGAL_OPCODE); break; } if (fPassthrough) { *penmTxDir = enmTxDir; *pcbXfer = cbXfer; *pcbSector = cbSector; } return fPassthrough; }