diff options
Diffstat (limited to 'src/VBox/Devices/Storage/ATAPIPassthrough.cpp')
| -rw-r--r-- | src/VBox/Devices/Storage/ATAPIPassthrough.cpp | 632 |
1 files changed, 632 insertions, 0 deletions
diff --git a/src/VBox/Devices/Storage/ATAPIPassthrough.cpp b/src/VBox/Devices/Storage/ATAPIPassthrough.cpp new file mode 100644 index 00000000..22cc27fc --- /dev/null +++ b/src/VBox/Devices/Storage/ATAPIPassthrough.cpp @@ -0,0 +1,632 @@ +/* $Id: ATAPIPassthrough.cpp $ */ +/** @file + * VBox storage devices: ATAPI emulation (common code for DevATA and DevAHCI). + */ + +/* + * Copyright (C) 2012 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 <iprt/log.h> +#include <iprt/assert.h> +#include <iprt/mem.h> + +#include <VBox/log.h> +#include <VBox/err.h> +#include <VBox/cdefs.h> +#include <VBox/scsi.h> + +#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; + +DECLINLINE(uint16_t) atapiBE2H_U16(const uint8_t *pbBuf) +{ + return (pbBuf[0] << 8) | pbBuf[1]; +} + + +DECLINLINE(uint32_t) atapiBE2H_U24(const uint8_t *pbBuf) +{ + return (pbBuf[0] << 16) | (pbBuf[1] << 8) | pbBuf[2]; +} + + +DECLINLINE(uint32_t) atapiBE2H_U32(const uint8_t *pbBuf) +{ + return (pbBuf[0] << 24) | (pbBuf[1] << 16) | (pbBuf[2] << 8) | pbBuf[3]; +} + +DECLINLINE(int64_t) atapiMSF2LBA(const uint8_t *pbBuf) +{ + return ((int64_t)(pbBuf[0] * 60 + pbBuf[1]) * 75 + pbBuf[2]) - 150; /* 2 second pregap */ +} + +/** + * 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; + } + + 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 = atapiMSF2LBA(&pbCueSheetEntry[5]); + if (pbCueSheetEntry[1] != 0xaa) + { + /* Calculate number of sectors from the next entry. */ + int64_t iLbaNext = atapiMSF2LBA(&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. + */ +static int atapiTrackListUpdateFromSendCueSheet(PTRACKLIST pTrackList, const uint8_t *pbCDB, const void *pvBuf) +{ + int rc = VINF_SUCCESS; + unsigned cbCueSheet = atapiBE2H_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; + + 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) +{ + return VERR_NOT_IMPLEMENTED; +} + +/** + * Update track list from formatted TOC data. + * + * @returns VBox status code. + * @param pTrackList The track list to update. + * @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) +{ + int rc = VINF_SUCCESS; + unsigned cbToc = atapiBE2H_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, 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 = atapiMSF2LBA(&pbBuf[4]); + else + pTrack->iLbaStart = atapiBE2H_U32(&pbBuf[4]); + + if (pbBuf[2] != 0xaa) + { + /* Calculate number of sectors from the next entry. */ + int64_t iLbaNext; + + if (fMSF) + iLbaNext = atapiMSF2LBA(&pbBuf[4+8]); + else + iLbaNext = atapiBE2H_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) +{ + int rc = VINF_SUCCESS; + uint16_t cbBuffer = atapiBE2H_U16(&pbCDB[7]); + 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: + case 0x05: + default: + rc = VERR_INVALID_PARAMETER; + } + + return rc; +} + +static int atapiTrackListUpdateFromReadTrackInformation(PTRACKLIST pTrackList, const uint8_t *pbCDB, const void *pvBuf) +{ + return VERR_NOT_IMPLEMENTED; +} + +static int atapiTrackListUpdateFromReadDvdStructure(PTRACKLIST pTrackList, const uint8_t *pbCDB, const void *pvBuf) +{ + return VERR_NOT_IMPLEMENTED; +} + +static int atapiTrackListUpdateFromReadDiscInformation(PTRACKLIST pTrackList, const uint8_t *pbCDB, const void *pvBuf) +{ + return VERR_NOT_IMPLEMENTED; +} + +/** + * 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" : "")); + } +} + +DECLHIDDEN(int) ATAPIPassthroughTrackListCreateEmpty(PTRACKLIST *ppTrackList) +{ + int rc = VERR_NO_MEMORY; + PTRACKLIST pTrackList = (PTRACKLIST)RTMemAllocZ(sizeof(TRACKLIST)); + + if (pTrackList) + { + rc = VINF_SUCCESS; + *ppTrackList = pTrackList; + } + + return rc; +} + +DECLHIDDEN(void) ATAPIPassthroughTrackListDestroy(PTRACKLIST pTrackList) +{ + if (pTrackList->paTracks) + RTMemFree(pTrackList->paTracks); + RTMemFree(pTrackList); +} + +DECLHIDDEN(void) ATAPIPassthroughTrackListClear(PTRACKLIST pTrackList) +{ + pTrackList->cTracksCurrent = 0; + + /* Mark all tracks as undetected. */ + for (unsigned i = 0; i < pTrackList->cTracksMax; i++) + pTrackList->paTracks[i].fFlags |= TRACK_FLAGS_UNDETECTED; +} + +DECLHIDDEN(int) ATAPIPassthroughTrackListUpdate(PTRACKLIST pTrackList, const uint8_t *pbCDB, const void *pvBuf) +{ + int rc = VINF_SUCCESS; + + switch (pbCDB[0]) + { + case SCSI_SEND_CUE_SHEET: + rc = atapiTrackListUpdateFromSendCueSheet(pTrackList, pbCDB, pvBuf); + break; + case SCSI_SEND_DVD_STRUCTURE: + rc = atapiTrackListUpdateFromSendDvdStructure(pTrackList, pbCDB, pvBuf); + break; + case SCSI_READ_TOC_PMA_ATIP: + rc = atapiTrackListUpdateFromReadTocPmaAtip(pTrackList, pbCDB, pvBuf); + break; + case SCSI_READ_TRACK_INFORMATION: + rc = atapiTrackListUpdateFromReadTrackInformation(pTrackList, pbCDB, pvBuf); + break; + case SCSI_READ_DVD_STRUCTURE: + rc = atapiTrackListUpdateFromReadDvdStructure(pTrackList, pbCDB, pvBuf); + break; + case SCSI_READ_DISC_INFORMATION: + rc = atapiTrackListUpdateFromReadDiscInformation(pTrackList, pbCDB, pvBuf); + 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; +} + +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; +} + |