| 1 | /* $Id: ATAPIPassthrough.h 76565 2019-01-01 04:23:20Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VBox storage devices: ATAPI passthrough helpers (common code for DevATA and DevAHCI).
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2012-2019 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 | #ifndef VBOX_INCLUDED_SRC_Storage_ATAPIPassthrough_h
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| 19 | #define VBOX_INCLUDED_SRC_Storage_ATAPIPassthrough_h
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| 20 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 21 | # pragma once
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| 22 | #endif
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| 23 |
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| 24 | #include <VBox/cdefs.h>
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| 25 | #include <VBox/vmm/pdmifs.h>
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| 26 | #include <VBox/vmm/pdmstorageifs.h>
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| 27 |
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| 28 | RT_C_DECLS_BEGIN
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| 29 |
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| 30 | /**
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| 31 | * Opaque media track list.
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| 32 | */
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| 33 | typedef struct TRACKLIST *PTRACKLIST;
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| 34 |
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| 35 | /**
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| 36 | * Creates an empty track list handle.
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| 37 | *
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| 38 | * @returns VBox status code.
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| 39 | * @param ppTrackList Where to store the track list handle on success.
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| 40 | */
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| 41 | DECLHIDDEN(int) ATAPIPassthroughTrackListCreateEmpty(PTRACKLIST *ppTrackList);
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| 42 |
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| 43 | /**
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| 44 | * Destroys the allocated task list handle.
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| 45 | *
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| 46 | * @returns nothing.
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| 47 | * @param pTrackList The track list handle to destroy.
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| 48 | */
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| 49 | DECLHIDDEN(void) ATAPIPassthroughTrackListDestroy(PTRACKLIST pTrackList);
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| 50 |
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| 51 | /**
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| 52 | * Clears all tracks from the given task list.
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| 53 | *
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| 54 | * @returns nothing.
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| 55 | * @param pTrackList The track list to clear.
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| 56 | */
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| 57 | DECLHIDDEN(void) ATAPIPassthroughTrackListClear(PTRACKLIST pTrackList);
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| 58 |
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| 59 | /**
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| 60 | * Updates the track list from the given CDB and data buffer.
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| 61 | *
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| 62 | * @returns VBox status code.
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| 63 | * @param pTrackList The track list to update.
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| 64 | * @param pCDB The CDB buffer.
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| 65 | * @param pvBuf The data buffer.
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| 66 | */
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| 67 | DECLHIDDEN(int) ATAPIPassthroughTrackListUpdate(PTRACKLIST pTrackList, const uint8_t *pCDB, const void *pvBuf);
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| 68 |
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| 69 | /**
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| 70 | * Return the sector size from the track matching the LBA in the given track list.
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| 71 | *
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| 72 | * @returns Sector size.
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| 73 | * @param pTrackList The track list to use.
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| 74 | * @param iAtapiLba The start LBA to get the sector size for.
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| 75 | */
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| 76 | DECLHIDDEN(uint32_t) ATAPIPassthroughTrackListGetSectorSizeFromLba(PTRACKLIST pTrackList, uint32_t iAtapiLba);
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| 77 |
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| 78 | /**
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| 79 | * Parses the given CDB and returns whether it is safe to pass it through to the host drive.
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| 80 | *
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| 81 | * @returns Flag whether passing the CDB through to the host drive is safe.
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| 82 | * @param pbCdb The CDB to parse.
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| 83 | * @param cbCdb Size of the CDB in bytes.
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| 84 | * @param cbBuf Size of the guest buffer.
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| 85 | * @param pTrackList The track list for the current medium if available (optional).
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| 86 | * @param pbSense Pointer to the sense buffer.
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| 87 | * @param cbSense Size of the sense buffer.
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| 88 | * @param penmTxDir Where to store the transfer direction (guest to host or vice versa).
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| 89 | * @param pcbXfer Where to store the transfer size encoded in the CDB.
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| 90 | * @param pcbSector Where to store the sector size used for the transfer.
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| 91 | * @param pu8ScsiSts Where to store the SCSI status code.
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| 92 | */
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| 93 | DECLHIDDEN(bool) ATAPIPassthroughParseCdb(const uint8_t *pbCdb, size_t cbCdb, size_t cbBuf,
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| 94 | PTRACKLIST pTrackList, uint8_t *pbSense, size_t cbSense,
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| 95 | PDMMEDIATXDIR *penmTxDir, size_t *pcbXfer,
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| 96 | size_t *pcbSector, uint8_t *pu8ScsiSts);
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| 97 |
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| 98 | RT_C_DECLS_END
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| 99 |
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| 100 | #endif /* !VBOX_INCLUDED_SRC_Storage_ATAPIPassthrough_h */
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