| 1 | /** @file
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| 2 | * VBox HDD Container API.
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| 3 | * Will replace VBoxHDD.h.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2008 innotek GmbH
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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 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 | #ifndef ___VBox_VD_h
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| 28 | #define ___VBox_VD_h
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| 29 |
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| 30 | #include <VBox/cdefs.h>
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| 31 | #include <VBox/types.h>
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| 32 | #include <VBox/pdm.h>
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| 33 |
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| 34 | __BEGIN_DECLS
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| 35 |
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| 36 | #ifdef IN_RING0
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| 37 | # error "There are no VBox HDD Container APIs available in Ring-0 Host Context!"
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| 38 | #endif
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| 39 |
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| 40 | /** @defgroup grp_vd VBox HDD Container
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| 41 | * @{
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| 42 | */
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| 43 |
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| 44 | /** Current VMDK image version. */
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| 45 | #define VMDK_IMAGE_VERSION (0x0001)
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| 46 |
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| 47 | /** Current VDI image major version. */
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| 48 | #define VDI_IMAGE_VERSION_MAJOR (0x0001)
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| 49 | /** Current VDI image minor version. */
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| 50 | #define VDI_IMAGE_VERSION_MINOR (0x0001)
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| 51 | /** Current VDI image version. */
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| 52 | #define VDI_IMAGE_VERSION ((VDI_IMAGE_VERSION_MAJOR << 16) | VDI_IMAGE_VERSION_MINOR)
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| 53 |
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| 54 | /** Get VDI major version from combined version. */
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| 55 | #define VDI_GET_VERSION_MAJOR(uVer) ((uVer) >> 16)
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| 56 | /** Get VDI minor version from combined version. */
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| 57 | #define VDI_GET_VERSION_MINOR(uVer) ((uVer) & 0xffff)
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| 58 |
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| 59 | /** Placeholder for specifying the last opened image. */
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| 60 | #define VD_LAST_IMAGE 0xffffffffU
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| 61 |
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| 62 | /** @name VBox HDD container image types
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| 63 | * @{ */
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| 64 | typedef enum VDIMAGETYPE
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| 65 | {
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| 66 | /** Normal dynamically growing base image file. */
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| 67 | VD_IMAGE_TYPE_NORMAL = 1,
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| 68 | /** Preallocated base image file of a fixed size. */
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| 69 | VD_IMAGE_TYPE_FIXED,
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| 70 | /** Dynamically growing image file for undo/commit changes support. */
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| 71 | VD_IMAGE_TYPE_UNDO,
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| 72 | /** Dynamically growing image file for differencing support. */
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| 73 | VD_IMAGE_TYPE_DIFF,
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| 74 |
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| 75 | /** First valid image type value. */
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| 76 | VD_IMAGE_TYPE_FIRST = VD_IMAGE_TYPE_NORMAL,
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| 77 | /** Last valid image type value. */
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| 78 | VD_IMAGE_TYPE_LAST = VD_IMAGE_TYPE_DIFF
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| 79 | } VDIMAGETYPE;
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| 80 | /** Pointer to VBox HDD container image type. */
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| 81 | typedef VDIMAGETYPE *PVDIMAGETYPE;
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| 82 | /** @} */
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| 83 |
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| 84 | /** @name VBox HDD container image flags
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| 85 | * @{
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| 86 | */
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| 87 | /** No flags. */
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| 88 | #define VD_IMAGE_FLAGS_NONE (0)
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| 89 | /** VMDK: Split image into 2GB extents. */
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| 90 | #define VD_VMDK_IMAGE_FLAGS_SPLIT_2G (0x0001)
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| 91 | /** VMDK: Raw disk image (giving access to a number of host partitions). */
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| 92 | #define VD_VMDK_IMAGE_FLAGS_RAWDISK (0x0002)
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| 93 | /** VDI: Fill new blocks with zeroes while expanding image file. Only valid
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| 94 | * for newly created images, never set for opened existing images. */
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| 95 | #define VD_VDI_IMAGE_FLAGS_ZERO_EXPAND (0x0100)
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| 96 |
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| 97 | /** Mask of valid image flags for VMDK. */
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| 98 | #define VD_VMDK_IMAGE_FLAGS_MASK (VD_IMAGE_FLAGS_NONE | VD_VMDK_IMAGE_FLAGS_SPLIT_2G | VD_VMDK_IMAGE_FLAGS_RAWDISK)
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| 99 |
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| 100 | /** Mask of valid image flags for VDI. */
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| 101 | #define VD_VDI_IMAGE_FLAGS_MASK (VD_IMAGE_FLAGS_NONE | VD_VDI_IMAGE_FLAGS_ZERO_EXPAND)
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| 102 |
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| 103 | /** Mask of all valid image flags for all formats. */
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| 104 | #define VD_IMAGE_FLAGS_MASK (VD_VMDK_IMAGE_FLAGS_MASK | VD_VDI_IMAGE_FLAGS_MASK)
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| 105 |
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| 106 | /** Default image flags. */
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| 107 | #define VD_IMAGE_FLAGS_DEFAULT (VD_IMAGE_FLAGS_NONE)
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| 108 | /** @} */
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| 109 |
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| 110 |
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| 111 | /**
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| 112 | * Auxiliary type for describing partitions on raw disks.
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| 113 | */
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| 114 | typedef struct VBOXHDDRAWPART
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| 115 | {
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| 116 | /** Device to use for this partition. Can be the disk device if the offset
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| 117 | * field is set appropriately. If this is NULL, then this partition will
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| 118 | * not be accessible to the guest. The size of the partition must still
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| 119 | * be set correctly. */
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| 120 | const char *pszRawDevice;
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| 121 | /** Offset where the partition data starts in this device. */
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| 122 | uint64_t uPartitionStartOffset;
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| 123 | /** Offset where the partition data starts in the disk. */
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| 124 | uint64_t uPartitionStart;
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| 125 | /** Size of the partition. */
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| 126 | uint64_t cbPartition;
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| 127 | /** Size of the partitioning info to prepend. */
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| 128 | uint64_t cbPartitionData;
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| 129 | /** Offset where the partitioning info starts in the disk. */
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| 130 | uint64_t uPartitionDataStart;
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| 131 | /** Pointer to the partitioning info to prepend. */
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| 132 | const void *pvPartitionData;
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| 133 | } VBOXHDDRAWPART, *PVBOXHDDRAWPART;
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| 134 |
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| 135 | /**
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| 136 | * Auxiliary data structure for creating raw disks.
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| 137 | */
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| 138 | typedef struct VBOXHDDRAW
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| 139 | {
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| 140 | /** Signature for structure. Must be 'R', 'A', 'W', '\0'. Actually a trick
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| 141 | * to make logging of the comment string produce sensible results. */
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| 142 | char szSignature[4];
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| 143 | /** Flag whether access to full disk should be given (ignoring the
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| 144 | * partition information below). */
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| 145 | bool fRawDisk;
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| 146 | /** Filename for the raw disk. Ignored for partitioned raw disks.
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| 147 | * For Linux e.g. /dev/sda, and for Windows e.g. \\.\PhysicalDisk0. */
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| 148 | const char *pszRawDisk;
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| 149 | /** Number of entries in the partitions array. */
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| 150 | unsigned cPartitions;
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| 151 | /** Pointer to the partitions array. */
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| 152 | PVBOXHDDRAWPART pPartitions;
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| 153 | } VBOXHDDRAW, *PVBOXHDDRAW;
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| 154 |
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| 155 | /** @name VBox HDD container image open mode flags
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| 156 | * @{
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| 157 | */
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| 158 | /** Try to open image in read/write exclusive access mode if possible, or in read-only elsewhere. */
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| 159 | #define VD_OPEN_FLAGS_NORMAL 0
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| 160 | /** Open image in read-only mode with sharing access with others. */
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| 161 | #define VD_OPEN_FLAGS_READONLY RT_BIT(0)
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| 162 | /** Honor zero block writes instead of ignoring them whenever possible.
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| 163 | * This is not supported by all formats. It is silently ignored in this case. */
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| 164 | #define VD_OPEN_FLAGS_HONOR_ZEROES RT_BIT(1)
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| 165 | /** Honor writes of the same data instead of ignoring whenever possible.
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| 166 | * This is handled generically, and is only meaningful for differential image
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| 167 | * formats. It is silently ignored otherwise. */
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| 168 | #define VD_OPEN_FLAGS_HONOR_SAME RT_BIT(2)
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| 169 | /** Do not perform the base/diff image check on open. This internally implies
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| 170 | * opening the image as readonly. Images opened with this flag should only be
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| 171 | * used for querying information, and nothing else. */
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| 172 | #define VD_OPEN_FLAGS_INFO RT_BIT(3)
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| 173 | /** Mask of valid flags. */
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| 174 | #define VD_OPEN_FLAGS_MASK (VD_OPEN_FLAGS_NORMAL | VD_OPEN_FLAGS_READONLY | VD_OPEN_FLAGS_HONOR_ZEROES | VD_OPEN_FLAGS_HONOR_SAME | VD_OPEN_FLAGS_INFO)
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| 175 | /** @}*/
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| 176 |
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| 177 |
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| 178 | /** @name VBox HDD container backend capability flags
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| 179 | * @{
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| 180 | */
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| 181 | /** Supports UUIDs as expected by VirtualBox code. */
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| 182 | #define VD_CAP_UUID RT_BIT(0)
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| 183 | /** Supports creating fixed size images, allocating all space instantly. */
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| 184 | #define VD_CAP_CREATE_FIXED RT_BIT(1)
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| 185 | /** Supports creating dynamically growing images, allocating space on demand. */
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| 186 | #define VD_CAP_CREATE_DYNAMIC RT_BIT(2)
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| 187 | /** Supports creating images split in chunks of a bit less than 2GBytes. */
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| 188 | #define VD_CAP_CREATE_SPLIT_2G RT_BIT(3)
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| 189 | /** Supports being used as differencing image format backend. */
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| 190 | #define VD_CAP_DIFF RT_BIT(4)
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| 191 | /** @}*/
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| 192 |
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| 193 |
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| 194 | /**
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| 195 | * Data structure for returning a list of backend capabilities.
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| 196 | */
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| 197 | typedef struct VDBACKENDINFO
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| 198 | {
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| 199 | /** Name of the backend. */
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| 200 | char *pszBackend;
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| 201 | /** Capabilities of the backend (a combination of the VD_CAP_* flags). */
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| 202 | uint64_t uBackendCaps;
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| 203 | } VDBACKENDINFO, *PVDBACKENDINFO;
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| 204 |
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| 205 |
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| 206 | /**
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| 207 | * Error message callback.
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| 208 | *
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| 209 | * @param pvUser The opaque data passed on container creation.
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| 210 | * @param rc The VBox error code.
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| 211 | * @param RT_SRC_POS_DECL Use RT_SRC_POS.
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| 212 | * @param pszFormat Error message format string.
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| 213 | * @param va Error message arguments.
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| 214 | */
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| 215 | typedef DECLCALLBACK(void) FNVDERROR(void *pvUser, int rc, RT_SRC_POS_DECL, const char *pszFormat, va_list va);
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| 216 | /** Pointer to a FNVDERROR(). */
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| 217 | typedef FNVDERROR *PFNVDERROR;
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| 218 |
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| 219 |
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| 220 | /**
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| 221 | * VBox HDD Container main structure.
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| 222 | */
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| 223 | /* Forward declaration, VBOXHDD structure is visible only inside VBox HDD module. */
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| 224 | struct VBOXHDD;
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| 225 | typedef struct VBOXHDD VBOXHDD;
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| 226 | typedef VBOXHDD *PVBOXHDD;
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| 227 |
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| 228 |
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| 229 | /**
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| 230 | * Lists all HDD backends and their capabilities in a caller-provided buffer.
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| 231 | * Free all returned names with RTStrFree() when you no longer need them.
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| 232 | *
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| 233 | * @returns VBox status code.
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| 234 | * VERR_BUFFER_OVERFLOW if not enough space is passed.
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| 235 | * @param cEntriesAlloc Number of list entries available.
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| 236 | * @param pEntries Pointer to array for the entries.
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| 237 | * @param pcEntriesUsed Number of entries returned.
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| 238 | */
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| 239 | VBOXDDU_DECL(int) VDBackendInfo(unsigned cEntriesAlloc, PVDBACKENDINFO pEntries,
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| 240 | unsigned *pcEntriesUsed);
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| 241 |
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| 242 |
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| 243 | /**
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| 244 | * Allocates and initializes an empty HDD container.
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| 245 | * No image files are opened.
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| 246 | *
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| 247 | * @returns VBox status code.
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| 248 | * @param pfnError Callback for setting extended error information.
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| 249 | * @param pvErrorUser Opaque parameter for pfnError.
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| 250 | * @param ppDisk Where to store the reference to HDD container.
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| 251 | */
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| 252 | VBOXDDU_DECL(int) VDCreate(PFNVDERROR pfnError, void *pvErrorUser,
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| 253 | PVBOXHDD *ppDisk);
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| 254 |
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| 255 | /**
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| 256 | * Destroys HDD container.
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| 257 | * If container has opened image files they will be closed.
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| 258 | *
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| 259 | * @param pDisk Pointer to HDD container.
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| 260 | */
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| 261 | VBOXDDU_DECL(void) VDDestroy(PVBOXHDD pDisk);
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| 262 |
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| 263 | /**
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| 264 | * Try to get the backend name which can use this image.
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| 265 | *
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| 266 | * @returns VBox status code.
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| 267 | * @param pszFilename Name of the image file for which the backend is queried.
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| 268 | * @param ppszFormat Receives pointer of the UTF-8 string which contains the format name.
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| 269 | * The returned pointer must be freed using RTStrFree().
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| 270 | */
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| 271 | VBOXDDU_DECL(int) VDGetFormat(const char *pszFilename, char **ppszFormat);
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| 272 |
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| 273 | /**
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| 274 | * Opens an image file.
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| 275 | *
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| 276 | * The first opened image file in HDD container must have a base image type,
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| 277 | * others (next opened images) must be differencing or undo images.
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| 278 | * Linkage is checked for differencing image to be consistent with the previously opened image.
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| 279 | * When another differencing image is opened and the last image was opened in read/write access
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| 280 | * mode, then the last image is reopened in read-only with deny write sharing mode. This allows
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| 281 | * other processes to use images in read-only mode too.
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| 282 | *
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| 283 | * Note that the image is opened in read-only mode if a read/write open is not possible.
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| 284 | * Use VDIsReadOnly to check open mode.
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| 285 | *
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| 286 | * @returns VBox status code.
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| 287 | * @param pDisk Pointer to HDD container.
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| 288 | * @param pszBackend Name of the image file backend to use.
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| 289 | * @param pszFilename Name of the image file to open.
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| 290 | * @param uOpenFlags Image file open mode, see VD_OPEN_FLAGS_* constants.
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| 291 | */
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| 292 | VBOXDDU_DECL(int) VDOpen(PVBOXHDD pDisk, const char *pszBackend,
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| 293 | const char *pszFilename, unsigned uOpenFlags);
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| 294 |
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| 295 | /**
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| 296 | * Creates and opens a new base image file.
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| 297 | *
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| 298 | * @returns VBox status code.
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| 299 | * @param pDisk Pointer to HDD container.
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| 300 | * @param pszBackend Name of the image file backend to use.
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| 301 | * @param pszFilename Name of the image file to create.
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| 302 | * @param enmType Image type, only base image types are acceptable.
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| 303 | * @param cbSize Image size in bytes.
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| 304 | * @param uImageFlags Flags specifying special image features.
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| 305 | * @param pszComment Pointer to image comment. NULL is ok.
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| 306 | * @param pPCHSGeometry Pointer to physical disk geometry <= (16383,16,63). Not NULL.
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| 307 | * @param pLCHSGeometry Pointer to logical disk geometry <= (1024,255,63). Not NULL.
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| 308 | * @param uOpenFlags Image file open mode, see VD_OPEN_FLAGS_* constants.
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| 309 | * @param pfnProgress Progress callback. Optional. NULL if not to be used.
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| 310 | * @param pvUser User argument for the progress callback.
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| 311 | */
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| 312 | VBOXDDU_DECL(int) VDCreateBase(PVBOXHDD pDisk, const char *pszBackend,
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| 313 | const char *pszFilename, VDIMAGETYPE enmType,
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| 314 | uint64_t cbSize, unsigned uImageFlags,
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| 315 | const char *pszComment,
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| 316 | PCPDMMEDIAGEOMETRY pPCHSGeometry,
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| 317 | PCPDMMEDIAGEOMETRY pLCHSGeometry,
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| 318 | unsigned uOpenFlags, PFNVMPROGRESS pfnProgress,
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| 319 | void *pvUser);
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| 320 |
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| 321 | /**
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| 322 | * Creates and opens a new differencing image file in HDD container.
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| 323 | * See comments for VDOpen function about differencing images.
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| 324 | *
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| 325 | * @returns VBox status code.
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| 326 | * @param pDisk Pointer to HDD container.
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| 327 | * @param pszBackend Name of the image file backend to use.
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| 328 | * @param pszFilename Name of the differencing image file to create.
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| 329 | * @param uImageFlags Flags specifying special image features.
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| 330 | * @param pszComment Pointer to image comment. NULL is ok.
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| 331 | * @param uOpenFlags Image file open mode, see VD_OPEN_FLAGS_* constants.
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| 332 | * @param pfnProgress Progress callback. Optional. NULL if not to be used.
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| 333 | * @param pvUser User argument for the progress callback.
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| 334 | */
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| 335 | VBOXDDU_DECL(int) VDCreateDiff(PVBOXHDD pDisk, const char *pszBackend,
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| 336 | const char *pszFilename, unsigned uImageFlags,
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| 337 | const char *pszComment, unsigned uOpenFlags,
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| 338 | PFNVMPROGRESS pfnProgress, void *pvUser);
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| 339 |
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| 340 | /**
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| 341 | * Merges two images (not necessarily with direct parent/child relationship).
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| 342 | * As a side effect the source image and potentially the other images which
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| 343 | * are also merged to the destination are deleted from both the disk and the
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| 344 | * images in the HDD container.
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| 345 | *
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| 346 | * @returns VBox status code.
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| 347 | * @returns VERR_VDI_IMAGE_NOT_FOUND if image with specified number was not opened.
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| 348 | * @param pDisk Pointer to HDD container.
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| 349 | * @param nImageFrom Name of the image file to merge from.
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| 350 | * @param nImageTo Name of the image file to merge to.
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| 351 | * @param pfnProgress Progress callback. Optional. NULL if not to be used.
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| 352 | * @param pvUser User argument for the progress callback.
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| 353 | */
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| 354 | VBOXDDU_DECL(int) VDMerge(PVBOXHDD pDisk, unsigned nImageFrom,
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| 355 | unsigned nImageTo, PFNVMPROGRESS pfnProgress,
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| 356 | void *pvUser);
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| 357 |
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| 358 | /**
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| 359 | * Copies an image from one HDD container to another.
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| 360 | * The copy is opened in the target HDD container.
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| 361 | * It is possible to convert between different image formats, because the
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| 362 | * backend for the destination may be different from the source.
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| 363 | * If both the source and destination reference the same HDD container,
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| 364 | * then the image is moved (by copying/deleting or renaming) to the new location.
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| 365 | * The source container is unchanged if the move operation fails, otherwise
|
|---|
| 366 | * the image at the new location is opened in the same way as the old one was.
|
|---|
| 367 | *
|
|---|
| 368 | * @returns VBox status code.
|
|---|
| 369 | * @returns VERR_VDI_IMAGE_NOT_FOUND if image with specified number was not opened.
|
|---|
| 370 | * @param pDiskFrom Pointer to source HDD container.
|
|---|
| 371 | * @param nImage Image number, counts from 0. 0 is always base image of container.
|
|---|
| 372 | * @param pDiskTo Pointer to destination HDD container.
|
|---|
| 373 | * @param pszBackend Name of the image file backend to use (may be NULL to use the same as the source).
|
|---|
| 374 | * @param pszFilename New name of the image (may be NULL if pDiskFrom == pDiskTo).
|
|---|
| 375 | * @param fMoveByRename If true, attempt to perform a move by renaming (if successful the new size is ignored).
|
|---|
| 376 | * @param cbSize New image size (0 means leave unchanged).
|
|---|
| 377 | * @param pfnProgress Progress callback. Optional. NULL if not to be used.
|
|---|
| 378 | * @param pvUser User argument for the progress callback.
|
|---|
| 379 | */
|
|---|
| 380 | VBOXDDU_DECL(int) VDCopy(PVBOXHDD pDiskFrom, unsigned nImage, PVBOXHDD pDiskTo,
|
|---|
| 381 | const char *pszBackend, const char *pszFilename,
|
|---|
| 382 | bool fMoveByRename, uint64_t cbSize,
|
|---|
| 383 | PFNVMPROGRESS pfnProgress, void *pvUser);
|
|---|
| 384 |
|
|---|
| 385 | /**
|
|---|
| 386 | * Closes the last opened image file in HDD container.
|
|---|
| 387 | * If previous image file was opened in read-only mode (that is normal) and closing image
|
|---|
| 388 | * was opened in read-write mode (the whole disk was in read-write mode) - the previous image
|
|---|
| 389 | * will be reopened in read/write mode.
|
|---|
| 390 | *
|
|---|
| 391 | * @returns VBox status code.
|
|---|
| 392 | * @returns VERR_VDI_NOT_OPENED if no image is opened in HDD container.
|
|---|
| 393 | * @param pDisk Pointer to HDD container.
|
|---|
| 394 | * @param fDelete If true, delete the image from the host disk.
|
|---|
| 395 | */
|
|---|
| 396 | VBOXDDU_DECL(int) VDClose(PVBOXHDD pDisk, bool fDelete);
|
|---|
| 397 |
|
|---|
| 398 | /**
|
|---|
| 399 | * Closes all opened image files in HDD container.
|
|---|
| 400 | *
|
|---|
| 401 | * @returns VBox status code.
|
|---|
| 402 | * @param pDisk Pointer to HDD container.
|
|---|
| 403 | */
|
|---|
| 404 | VBOXDDU_DECL(int) VDCloseAll(PVBOXHDD pDisk);
|
|---|
| 405 |
|
|---|
| 406 | /**
|
|---|
| 407 | * Read data from virtual HDD.
|
|---|
| 408 | *
|
|---|
| 409 | * @returns VBox status code.
|
|---|
| 410 | * @returns VERR_VDI_NOT_OPENED if no image is opened in HDD container.
|
|---|
| 411 | * @param pDisk Pointer to HDD container.
|
|---|
| 412 | * @param uOffset Offset of first reading byte from start of disk.
|
|---|
| 413 | * @param pvBuf Pointer to buffer for reading data.
|
|---|
| 414 | * @param cbRead Number of bytes to read.
|
|---|
| 415 | */
|
|---|
| 416 | VBOXDDU_DECL(int) VDRead(PVBOXHDD pDisk, uint64_t uOffset, void *pvBuf, size_t cbRead);
|
|---|
| 417 |
|
|---|
| 418 | /**
|
|---|
| 419 | * Write data to virtual HDD.
|
|---|
| 420 | *
|
|---|
| 421 | * @returns VBox status code.
|
|---|
| 422 | * @returns VERR_VDI_NOT_OPENED if no image is opened in HDD container.
|
|---|
| 423 | * @param pDisk Pointer to HDD container.
|
|---|
| 424 | * @param uOffset Offset of first writing byte from start of disk.
|
|---|
| 425 | * @param pvBuf Pointer to buffer for writing data.
|
|---|
| 426 | * @param cbWrite Number of bytes to write.
|
|---|
| 427 | */
|
|---|
| 428 | VBOXDDU_DECL(int) VDWrite(PVBOXHDD pDisk, uint64_t uOffset, const void *pvBuf, size_t cbWrite);
|
|---|
| 429 |
|
|---|
| 430 | /**
|
|---|
| 431 | * Make sure the on disk representation of a virtual HDD is up to date.
|
|---|
| 432 | *
|
|---|
| 433 | * @returns VBox status code.
|
|---|
| 434 | * @returns VERR_VDI_NOT_OPENED if no image is opened in HDD container.
|
|---|
| 435 | * @param pDisk Pointer to HDD container.
|
|---|
| 436 | */
|
|---|
| 437 | VBOXDDU_DECL(int) VDFlush(PVBOXHDD pDisk);
|
|---|
| 438 |
|
|---|
| 439 | /**
|
|---|
| 440 | * Get number of opened images in HDD container.
|
|---|
| 441 | *
|
|---|
| 442 | * @returns Number of opened images for HDD container. 0 if no images have been opened.
|
|---|
| 443 | * @param pDisk Pointer to HDD container.
|
|---|
| 444 | */
|
|---|
| 445 | VBOXDDU_DECL(unsigned) VDGetCount(PVBOXHDD pDisk);
|
|---|
| 446 |
|
|---|
| 447 | /**
|
|---|
| 448 | * Get read/write mode of HDD container.
|
|---|
| 449 | *
|
|---|
| 450 | * @returns Virtual disk ReadOnly status.
|
|---|
| 451 | * @returns true if no image is opened in HDD container.
|
|---|
| 452 | * @param pDisk Pointer to HDD container.
|
|---|
| 453 | */
|
|---|
| 454 | VBOXDDU_DECL(bool) VDIsReadOnly(PVBOXHDD pDisk);
|
|---|
| 455 |
|
|---|
| 456 | /**
|
|---|
| 457 | * Get total capacity of an image in HDD container.
|
|---|
| 458 | *
|
|---|
| 459 | * @returns Virtual disk size in bytes.
|
|---|
| 460 | * @returns 0 if image with specified number was not opened.
|
|---|
| 461 | * @param pDisk Pointer to HDD container.
|
|---|
| 462 | * @param nImage Image number, counts from 0. 0 is always base image of container.
|
|---|
| 463 | */
|
|---|
| 464 | VBOXDDU_DECL(uint64_t) VDGetSize(PVBOXHDD pDisk, unsigned nImage);
|
|---|
| 465 |
|
|---|
| 466 | /**
|
|---|
| 467 | * Get total file size of an image in HDD container.
|
|---|
| 468 | *
|
|---|
| 469 | * @returns Virtual disk size in bytes.
|
|---|
| 470 | * @returns 0 if image with specified number was not opened.
|
|---|
| 471 | * @param pDisk Pointer to HDD container.
|
|---|
| 472 | * @param nImage Image number, counts from 0. 0 is always base image of container.
|
|---|
| 473 | */
|
|---|
| 474 | VBOXDDU_DECL(uint64_t) VDGetFileSize(PVBOXHDD pDisk, unsigned nImage);
|
|---|
| 475 |
|
|---|
| 476 | /**
|
|---|
| 477 | * Get virtual disk PCHS geometry of an image in HDD container.
|
|---|
| 478 | *
|
|---|
| 479 | * @returns VBox status code.
|
|---|
| 480 | * @returns VERR_VDI_IMAGE_NOT_FOUND if image with specified number was not opened.
|
|---|
| 481 | * @returns VERR_VDI_GEOMETRY_NOT_SET if no geometry present in the HDD container.
|
|---|
| 482 | * @param pDisk Pointer to HDD container.
|
|---|
| 483 | * @param nImage Image number, counts from 0. 0 is always base image of container.
|
|---|
| 484 | * @param pPCHSGeometry Where to store PCHS geometry. Not NULL.
|
|---|
| 485 | */
|
|---|
| 486 | VBOXDDU_DECL(int) VDGetPCHSGeometry(PVBOXHDD pDisk, unsigned nImage,
|
|---|
| 487 | PPDMMEDIAGEOMETRY pPCHSGeometry);
|
|---|
| 488 |
|
|---|
| 489 | /**
|
|---|
| 490 | * Store virtual disk PCHS geometry of an image in HDD container.
|
|---|
| 491 | *
|
|---|
| 492 | * @returns VBox status code.
|
|---|
| 493 | * @returns VERR_VDI_IMAGE_NOT_FOUND if image with specified number was not opened.
|
|---|
| 494 | * @param pDisk Pointer to HDD container.
|
|---|
| 495 | * @param nImage Image number, counts from 0. 0 is always base image of container.
|
|---|
| 496 | * @param pPCHSGeometry Where to load PCHS geometry from. Not NULL.
|
|---|
| 497 | */
|
|---|
| 498 | VBOXDDU_DECL(int) VDSetPCHSGeometry(PVBOXHDD pDisk, unsigned nImage,
|
|---|
| 499 | PCPDMMEDIAGEOMETRY pPCHSGeometry);
|
|---|
| 500 |
|
|---|
| 501 | /**
|
|---|
| 502 | * Get virtual disk LCHS geometry of an image in HDD container.
|
|---|
| 503 | *
|
|---|
| 504 | * @returns VBox status code.
|
|---|
| 505 | * @returns VERR_VDI_IMAGE_NOT_FOUND if image with specified number was not opened.
|
|---|
| 506 | * @returns VERR_VDI_GEOMETRY_NOT_SET if no geometry present in the HDD container.
|
|---|
| 507 | * @param pDisk Pointer to HDD container.
|
|---|
| 508 | * @param nImage Image number, counts from 0. 0 is always base image of container.
|
|---|
| 509 | * @param pLCHSGeometry Where to store LCHS geometry. Not NULL.
|
|---|
| 510 | */
|
|---|
| 511 | VBOXDDU_DECL(int) VDGetLCHSGeometry(PVBOXHDD pDisk, unsigned nImage,
|
|---|
| 512 | PPDMMEDIAGEOMETRY pLCHSGeometry);
|
|---|
| 513 |
|
|---|
| 514 | /**
|
|---|
| 515 | * Store virtual disk LCHS geometry of an image in HDD container.
|
|---|
| 516 | *
|
|---|
| 517 | * @returns VBox status code.
|
|---|
| 518 | * @returns VERR_VDI_IMAGE_NOT_FOUND if image with specified number was not opened.
|
|---|
| 519 | * @param pDisk Pointer to HDD container.
|
|---|
| 520 | * @param nImage Image number, counts from 0. 0 is always base image of container.
|
|---|
| 521 | * @param pLCHSGeometry Where to load LCHS geometry from. Not NULL.
|
|---|
| 522 | */
|
|---|
| 523 | VBOXDDU_DECL(int) VDSetLCHSGeometry(PVBOXHDD pDisk, unsigned nImage,
|
|---|
| 524 | PCPDMMEDIAGEOMETRY pLCHSGeometry);
|
|---|
| 525 |
|
|---|
| 526 | /**
|
|---|
| 527 | * Get version of image in HDD container.
|
|---|
| 528 | *
|
|---|
| 529 | * @returns VBox status code.
|
|---|
| 530 | * @returns VERR_VDI_IMAGE_NOT_FOUND if image with specified number was not opened.
|
|---|
| 531 | * @param pDisk Pointer to HDD container.
|
|---|
| 532 | * @param nImage Image number, counts from 0. 0 is always base image of container.
|
|---|
| 533 | * @param puVersion Where to store the image version.
|
|---|
| 534 | */
|
|---|
| 535 | VBOXDDU_DECL(int) VDGetVersion(PVBOXHDD pDisk, unsigned nImage,
|
|---|
| 536 | unsigned *puVersion);
|
|---|
| 537 |
|
|---|
| 538 | /**
|
|---|
| 539 | * Get type of image in HDD container.
|
|---|
| 540 | *
|
|---|
| 541 | * @returns VBox status code.
|
|---|
| 542 | * @returns VERR_VDI_IMAGE_NOT_FOUND if image with specified number was not opened.
|
|---|
| 543 | * @param pDisk Pointer to HDD container.
|
|---|
| 544 | * @param nImage Image number, counts from 0. 0 is always base image of container.
|
|---|
| 545 | * @param penmType Where to store the image type.
|
|---|
| 546 | */
|
|---|
| 547 | VBOXDDU_DECL(int) VDGetImageType(PVBOXHDD pDisk, unsigned nImage,
|
|---|
| 548 | PVDIMAGETYPE penmType);
|
|---|
| 549 |
|
|---|
| 550 | /**
|
|---|
| 551 | * Get flags of image in HDD container.
|
|---|
| 552 | *
|
|---|
| 553 | * @returns VBox status code.
|
|---|
| 554 | * @returns VERR_VDI_IMAGE_NOT_FOUND if image with specified number was not opened.
|
|---|
| 555 | * @param pDisk Pointer to HDD container.
|
|---|
| 556 | * @param nImage Image number, counts from 0. 0 is always base image of container.
|
|---|
| 557 | * @param puImageFlags Where to store the image flags.
|
|---|
| 558 | */
|
|---|
| 559 | VBOXDDU_DECL(int) VDGetImageFlags(PVBOXHDD pDisk, unsigned nImage, unsigned *puImageFlags);
|
|---|
| 560 |
|
|---|
| 561 | /**
|
|---|
| 562 | * Get open flags of image in HDD container.
|
|---|
| 563 | *
|
|---|
| 564 | * @returns VBox status code.
|
|---|
| 565 | * @returns VERR_VDI_IMAGE_NOT_FOUND if image with specified number was not opened.
|
|---|
| 566 | * @param pDisk Pointer to HDD container.
|
|---|
| 567 | * @param nImage Image number, counts from 0. 0 is always base image of container.
|
|---|
| 568 | * @param puOpenFlags Where to store the image open flags.
|
|---|
| 569 | */
|
|---|
| 570 | VBOXDDU_DECL(int) VDGetOpenFlags(PVBOXHDD pDisk, unsigned nImage,
|
|---|
| 571 | unsigned *puOpenFlags);
|
|---|
| 572 |
|
|---|
| 573 | /**
|
|---|
| 574 | * Set open flags of image in HDD container.
|
|---|
| 575 | * This operation may cause file locking changes and/or files being reopened.
|
|---|
| 576 | * Note that in case of unrecoverable error all images in HDD container will be closed.
|
|---|
| 577 | *
|
|---|
| 578 | * @returns VBox status code.
|
|---|
| 579 | * @returns VERR_VDI_IMAGE_NOT_FOUND if image with specified number was not opened.
|
|---|
| 580 | * @param pDisk Pointer to HDD container.
|
|---|
| 581 | * @param nImage Image number, counts from 0. 0 is always base image of container.
|
|---|
| 582 | * @param uOpenFlags Image file open mode, see VD_OPEN_FLAGS_* constants.
|
|---|
| 583 | */
|
|---|
| 584 | VBOXDDU_DECL(int) VDSetOpenFlags(PVBOXHDD pDisk, unsigned nImage,
|
|---|
| 585 | unsigned uOpenFlags);
|
|---|
| 586 |
|
|---|
| 587 | /**
|
|---|
| 588 | * Get base filename of image in HDD container. Some image formats use
|
|---|
| 589 | * other filenames as well, so don't use this for anything but informational
|
|---|
| 590 | * purposes.
|
|---|
| 591 | *
|
|---|
| 592 | * @returns VBox status code.
|
|---|
| 593 | * @returns VERR_VDI_IMAGE_NOT_FOUND if image with specified number was not opened.
|
|---|
| 594 | * @returns VERR_BUFFER_OVERFLOW if pszFilename buffer too small to hold filename.
|
|---|
| 595 | * @param pDisk Pointer to HDD container.
|
|---|
| 596 | * @param nImage Image number, counts from 0. 0 is always base image of container.
|
|---|
| 597 | * @param pszFilename Where to store the image file name.
|
|---|
| 598 | * @param cbFilename Size of buffer pszFilename points to.
|
|---|
| 599 | */
|
|---|
| 600 | VBOXDDU_DECL(int) VDGetFilename(PVBOXHDD pDisk, unsigned nImage,
|
|---|
| 601 | char *pszFilename, unsigned cbFilename);
|
|---|
| 602 |
|
|---|
| 603 | /**
|
|---|
| 604 | * Get the comment line of image in HDD container.
|
|---|
| 605 | *
|
|---|
| 606 | * @returns VBox status code.
|
|---|
| 607 | * @returns VERR_VDI_IMAGE_NOT_FOUND if image with specified number was not opened.
|
|---|
| 608 | * @returns VERR_BUFFER_OVERFLOW if pszComment buffer too small to hold comment text.
|
|---|
| 609 | * @param pDisk Pointer to HDD container.
|
|---|
| 610 | * @param nImage Image number, counts from 0. 0 is always base image of container.
|
|---|
| 611 | * @param pszComment Where to store the comment string of image. NULL is ok.
|
|---|
| 612 | * @param cbComment The size of pszComment buffer. 0 is ok.
|
|---|
| 613 | */
|
|---|
| 614 | VBOXDDU_DECL(int) VDGetComment(PVBOXHDD pDisk, unsigned nImage,
|
|---|
| 615 | char *pszComment, unsigned cbComment);
|
|---|
| 616 |
|
|---|
| 617 | /**
|
|---|
| 618 | * Changes the comment line of image in HDD container.
|
|---|
| 619 | *
|
|---|
| 620 | * @returns VBox status code.
|
|---|
| 621 | * @returns VERR_VDI_IMAGE_NOT_FOUND if image with specified number was not opened.
|
|---|
| 622 | * @param pDisk Pointer to HDD container.
|
|---|
| 623 | * @param nImage Image number, counts from 0. 0 is always base image of container.
|
|---|
| 624 | * @param pszComment New comment string (UTF-8). NULL is allowed to reset the comment.
|
|---|
| 625 | */
|
|---|
| 626 | VBOXDDU_DECL(int) VDSetComment(PVBOXHDD pDisk, unsigned nImage,
|
|---|
| 627 | const char *pszComment);
|
|---|
| 628 |
|
|---|
| 629 | /**
|
|---|
| 630 | * Get UUID of image in HDD container.
|
|---|
| 631 | *
|
|---|
| 632 | * @returns VBox status code.
|
|---|
| 633 | * @returns VERR_VDI_IMAGE_NOT_FOUND if image with specified number was not opened.
|
|---|
| 634 | * @param pDisk Pointer to HDD container.
|
|---|
| 635 | * @param nImage Image number, counts from 0. 0 is always base image of container.
|
|---|
| 636 | * @param pUuid Where to store the image UUID.
|
|---|
| 637 | */
|
|---|
| 638 | VBOXDDU_DECL(int) VDGetUuid(PVBOXHDD pDisk, unsigned nImage, PRTUUID pUuid);
|
|---|
| 639 |
|
|---|
| 640 | /**
|
|---|
| 641 | * Set the image's UUID. Should not be used by normal applications.
|
|---|
| 642 | *
|
|---|
| 643 | * @returns VBox status code.
|
|---|
| 644 | * @returns VERR_VDI_IMAGE_NOT_FOUND if image with specified number was not opened.
|
|---|
| 645 | * @param pDisk Pointer to HDD container.
|
|---|
| 646 | * @param nImage Image number, counts from 0. 0 is always base image of container.
|
|---|
| 647 | * @param pUuid New UUID of the image. If NULL, a new UUID is created.
|
|---|
| 648 | */
|
|---|
| 649 | VBOXDDU_DECL(int) VDSetUuid(PVBOXHDD pDisk, unsigned nImage, PCRTUUID pUuid);
|
|---|
| 650 |
|
|---|
| 651 | /**
|
|---|
| 652 | * Get last modification UUID of image in HDD container.
|
|---|
| 653 | *
|
|---|
| 654 | * @returns VBox status code.
|
|---|
| 655 | * @returns VERR_VDI_IMAGE_NOT_FOUND if image with specified number was not opened.
|
|---|
| 656 | * @param pDisk Pointer to HDD container.
|
|---|
| 657 | * @param nImage Image number, counts from 0. 0 is always base image of container.
|
|---|
| 658 | * @param pUuid Where to store the image modification UUID.
|
|---|
| 659 | */
|
|---|
| 660 | VBOXDDU_DECL(int) VDGetModificationUuid(PVBOXHDD pDisk, unsigned nImage,
|
|---|
| 661 | PRTUUID pUuid);
|
|---|
| 662 |
|
|---|
| 663 | /**
|
|---|
| 664 | * Set the image's last modification UUID. Should not be used by normal applications.
|
|---|
| 665 | *
|
|---|
| 666 | * @returns VBox status code.
|
|---|
| 667 | * @returns VERR_VDI_IMAGE_NOT_FOUND if image with specified number was not opened.
|
|---|
| 668 | * @param pDisk Pointer to HDD container.
|
|---|
| 669 | * @param nImage Image number, counts from 0. 0 is always base image of container.
|
|---|
| 670 | * @param pUuid New modification UUID of the image. If NULL, a new UUID is created.
|
|---|
| 671 | */
|
|---|
| 672 | VBOXDDU_DECL(int) VDSetModificationUuid(PVBOXHDD pDisk, unsigned nImage,
|
|---|
| 673 | PCRTUUID pUuid);
|
|---|
| 674 |
|
|---|
| 675 | /**
|
|---|
| 676 | * Get parent UUID of image in HDD container.
|
|---|
| 677 | *
|
|---|
| 678 | * @returns VBox status code.
|
|---|
| 679 | * @returns VERR_VDI_IMAGE_NOT_FOUND if image with specified number was not opened.
|
|---|
| 680 | * @param pDisk Pointer to HDD container.
|
|---|
| 681 | * @param nImage Image number, counts from 0. 0 is always base image of the container.
|
|---|
| 682 | * @param pUuid Where to store the parent image UUID.
|
|---|
| 683 | */
|
|---|
| 684 | VBOXDDU_DECL(int) VDGetParentUuid(PVBOXHDD pDisk, unsigned nImage,
|
|---|
| 685 | PRTUUID pUuid);
|
|---|
| 686 |
|
|---|
| 687 | /**
|
|---|
| 688 | * Set the image's parent UUID. Should not be used by normal applications.
|
|---|
| 689 | *
|
|---|
| 690 | * @returns VBox status code.
|
|---|
| 691 | * @param pDisk Pointer to HDD container.
|
|---|
| 692 | * @param nImage Image number, counts from 0. 0 is always base image of container.
|
|---|
| 693 | * @param pUuid New parent UUID of the image. If NULL, a new UUID is created.
|
|---|
| 694 | */
|
|---|
| 695 | VBOXDDU_DECL(int) VDSetParentUuid(PVBOXHDD pDisk, unsigned nImage,
|
|---|
| 696 | PCRTUUID pUuid);
|
|---|
| 697 |
|
|---|
| 698 |
|
|---|
| 699 | /**
|
|---|
| 700 | * Debug helper - dumps all opened images in HDD container into the log file.
|
|---|
| 701 | *
|
|---|
| 702 | * @param pDisk Pointer to HDD container.
|
|---|
| 703 | */
|
|---|
| 704 | VBOXDDU_DECL(void) VDDumpImages(PVBOXHDD pDisk);
|
|---|
| 705 |
|
|---|
| 706 | __END_DECLS
|
|---|
| 707 |
|
|---|
| 708 | /** @} */
|
|---|
| 709 |
|
|---|
| 710 | #endif
|
|---|
