| 1 | /** @file
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| 2 | * IPRT - Filesystem, VFS implementations.
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| 3 | */
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| 4 |
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| 5 | /*
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| 6 | * Copyright (C) 2006-2023 Oracle and/or its affiliates.
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| 7 | *
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| 8 | * This file is part of VirtualBox base platform packages, as
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| 9 | * available from https://www.virtualbox.org.
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| 10 | *
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| 11 | * This program is free software; you can redistribute it and/or
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| 12 | * modify it under the terms of the GNU General Public License
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| 13 | * as published by the Free Software Foundation, in version 3 of the
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| 14 | * License.
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| 15 | *
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| 16 | * This program is distributed in the hope that it will be useful, but
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| 17 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 19 | * General Public License for more details.
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| 20 | *
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| 21 | * You should have received a copy of the GNU General Public License
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| 22 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 23 | *
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| 24 | * The contents of this file may alternatively be used under the terms
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| 25 | * of the Common Development and Distribution License Version 1.0
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| 26 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 27 | * in the VirtualBox distribution, in which case the provisions of the
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| 28 | * CDDL are applicable instead of those of the GPL.
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| 29 | *
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| 30 | * You may elect to license modified versions of this file under the
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| 31 | * terms and conditions of either the GPL or the CDDL or both.
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| 32 | *
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| 33 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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| 34 | */
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| 35 |
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| 36 | #ifndef IPRT_INCLUDED_fsvfs_h
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| 37 | #define IPRT_INCLUDED_fsvfs_h
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| 38 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 39 | # pragma once
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| 40 | #endif
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| 41 |
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| 42 | #include <iprt/cdefs.h>
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| 43 | #include <iprt/types.h>
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| 44 |
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| 45 |
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| 46 | RT_C_DECLS_BEGIN
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| 47 |
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| 48 | /** @defgroup grp_rt_fs_vfs VFS File System Implementations
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| 49 | * @ingroup grp_rt_fs
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| 50 | * @{
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| 51 | */
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| 52 |
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| 53 | /**
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| 54 | * Opens a FAT file system volume.
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| 55 | *
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| 56 | * @returns IPRT status code.
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| 57 | * @param hVfsFileIn The file or device backing the volume.
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| 58 | * @param fReadOnly Whether to mount it read-only.
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| 59 | * @param offBootSector The offset of the boot sector relative to the start
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| 60 | * of @a hVfsFileIn. Pass 0 for floppies.
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| 61 | * @param phVfs Where to return the virtual file system handle.
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| 62 | * @param pErrInfo Where to return additional error information.
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| 63 | */
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| 64 | RTDECL(int) RTFsFatVolOpen(RTVFSFILE hVfsFileIn, bool fReadOnly, uint64_t offBootSector, PRTVFS phVfs, PRTERRINFO pErrInfo);
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| 65 |
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| 66 |
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| 67 | /**
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| 68 | * FAT type (format).
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| 69 | */
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| 70 | typedef enum RTFSFATTYPE
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| 71 | {
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| 72 | RTFSFATTYPE_INVALID = 0,
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| 73 | RTFSFATTYPE_FAT12,
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| 74 | RTFSFATTYPE_FAT16,
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| 75 | RTFSFATTYPE_FAT32,
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| 76 | RTFSFATTYPE_END
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| 77 | } RTFSFATTYPE;
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| 78 |
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| 79 |
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| 80 | /** @name RTFSFATVOL_FMT_F_XXX - RTFsFatVolFormat flags
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| 81 | * @{ */
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| 82 | /** Perform a full format, filling unused sectors with 0xf6. */
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| 83 | #define RTFSFATVOL_FMT_F_FULL UINT32_C(0)
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| 84 | /** Perform a quick format.
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| 85 | * I.e. just write the boot sector, FATs and root directory. */
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| 86 | #define RTFSFATVOL_FMT_F_QUICK RT_BIT_32(0)
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| 87 | /** Mask containing all valid flags. */
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| 88 | #define RTFSFATVOL_FMT_F_VALID_MASK UINT32_C(0x00000001)
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| 89 | /** @} */
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| 90 |
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| 91 | /**
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| 92 | * Formats a FAT volume.
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| 93 | *
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| 94 | * @returns IRPT status code.
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| 95 | * @param hVfsFile The volume file.
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| 96 | * @param offVol The offset into @a hVfsFile of the file.
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| 97 | * Typically 0.
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| 98 | * @param cbVol The size of the volume. Pass 0 if the rest of
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| 99 | * hVfsFile should be used.
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| 100 | * @param fFlags See RTFSFATVOL_FMT_F_XXX.
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| 101 | * @param cbSector The logical sector size. Must be power of two.
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| 102 | * Optional, pass zero to use 512.
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| 103 | * @param cSectorsPerCluster Number of sectors per cluster. Power of two.
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| 104 | * Optional, pass zero to auto detect.
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| 105 | * @param enmFatType The FAT type (12, 16, 32) to use.
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| 106 | * Optional, pass RTFSFATTYPE_INVALID for default.
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| 107 | * @param cHeads The number of heads to report in the BPB.
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| 108 | * Optional, pass zero to auto detect.
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| 109 | * @param cSectorsPerTrack The number of sectors per track to put in the
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| 110 | * BPB. Optional, pass zero to auto detect.
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| 111 | * @param bMedia The media byte value and FAT ID to use.
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| 112 | * Optional, pass zero to auto detect.
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| 113 | * @param cRootDirEntries Number of root directory entries.
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| 114 | * Optional, pass zero to auto detect.
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| 115 | * @param cHiddenSectors Number of hidden sectors. Pass 0 for
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| 116 | * unpartitioned media.
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| 117 | * @param pErrInfo Additional error information, maybe. Optional.
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| 118 | */
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| 119 | RTDECL(int) RTFsFatVolFormat(RTVFSFILE hVfsFile, uint64_t offVol, uint64_t cbVol, uint32_t fFlags, uint16_t cbSector,
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| 120 | uint16_t cSectorsPerCluster, RTFSFATTYPE enmFatType, uint32_t cHeads, uint32_t cSectorsPerTrack,
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| 121 | uint8_t bMedia, uint16_t cRootDirEntries, uint32_t cHiddenSectors, PRTERRINFO pErrInfo);
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| 122 |
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| 123 | /**
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| 124 | * Formats a 1.44MB floppy image.
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| 125 | *
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| 126 | * @returns IPRT status code.
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| 127 | * @param hVfsFile The image. Will be grown to 1.44MB if
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| 128 | * necessary.
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| 129 | * @param fQuick Whether to quick format the floppy or not.
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| 130 | */
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| 131 | RTDECL(int) RTFsFatVolFormat144(RTVFSFILE hVfsFile, bool fQuick);
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| 132 |
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| 133 | /**
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| 134 | * Formats a 2.88MB floppy image.
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| 135 | *
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| 136 | * @returns IPRT status code.
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| 137 | * @param hVfsFile The image. Will be grown to 1.44MB if
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| 138 | * necessary.
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| 139 | * @param fQuick Whether to quick format the floppy or not.
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| 140 | */
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| 141 | RTDECL(int) RTFsFatVolFormat288(RTVFSFILE hVfsFile, bool fQuick);
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| 142 |
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| 143 |
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| 144 | /**
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| 145 | * Opens an EXT2/3/4 file system volume.
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| 146 | *
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| 147 | * @returns IPRT status code.
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| 148 | * @param hVfsFileIn The file or device backing the volume.
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| 149 | * @param fMntFlags RTVFSMNT_F_XXX.
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| 150 | * @param fExtFlags Reserved, MBZ.
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| 151 | * @param phVfs Where to return the virtual file system handle.
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| 152 | * @param pErrInfo Where to return additional error information.
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| 153 | */
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| 154 | RTDECL(int) RTFsExtVolOpen(RTVFSFILE hVfsFileIn, uint32_t fMntFlags, uint32_t fExtFlags, PRTVFS phVfs, PRTERRINFO pErrInfo);
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| 155 |
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| 156 |
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| 157 |
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| 158 | /** @name RTFSISO9660_F_XXX - ISO 9660 mount flags.
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| 159 | * @{ */
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| 160 | /** Do not use the UDF part if present. */
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| 161 | #define RTFSISO9660_F_NO_UDF RT_BIT_32(0)
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| 162 | /** Do not use the joliet part. */
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| 163 | #define RTFSISO9660_F_NO_JOLIET RT_BIT_32(1)
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| 164 | /** Do not use the rock ridge extensions if present. */
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| 165 | #define RTFSISO9660_F_NO_ROCK RT_BIT_32(2)
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| 166 | /** Valid ISO 9660 mount option mask. */
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| 167 | #define RTFSISO9660_F_VALID_MASK UINT32_C(0x00000007)
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| 168 | /** Checks if @a a_fNoType is the only acceptable volume type. */
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| 169 | #define RTFSISO9660_F_IS_ONLY_TYPE(a_fFlags, a_fNoType) \
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| 170 | ( ((a_fFlags) & (RTFSISO9660_F_NO_UDF | RTFSISO9660_F_NO_JOLIET | RTFSISO9660_F_NO_ROCK)) \
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| 171 | == (~(a_fNoType) & (RTFSISO9660_F_NO_UDF | RTFSISO9660_F_NO_JOLIET | RTFSISO9660_F_NO_ROCK)) )
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| 172 | /** @} */
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| 173 |
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| 174 | /**
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| 175 | * Opens an ISO 9660 file system volume.
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| 176 | *
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| 177 | * @returns IPRT status code.
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| 178 | * @param hVfsFileIn The file or device backing the volume.
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| 179 | * @param fFlags RTFSISO9660_F_XXX.
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| 180 | * @param phVfs Where to return the virtual file system handle.
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| 181 | * @param pErrInfo Where to return additional error information.
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| 182 | */
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| 183 | RTDECL(int) RTFsIso9660VolOpen(RTVFSFILE hVfsFileIn, uint32_t fFlags, PRTVFS phVfs, PRTERRINFO pErrInfo);
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| 184 |
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| 185 |
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| 186 | /**
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| 187 | * Opens an NTFS file system volume.
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| 188 | *
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| 189 | * @returns IPRT status code.
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| 190 | * @param hVfsFileIn The file or device backing the volume.
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| 191 | * @param fMntFlags RTVFSMNT_F_XXX.
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| 192 | * @param fNtfsFlags Reserved, MBZ.
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| 193 | * @param phVfs Where to return the virtual file system handle.
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| 194 | * @param pErrInfo Where to return additional error information.
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| 195 | */
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| 196 | RTDECL(int) RTFsNtfsVolOpen(RTVFSFILE hVfsFileIn, uint32_t fMntFlags, uint32_t fNtfsFlags, PRTVFS phVfs, PRTERRINFO pErrInfo);
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| 197 |
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| 198 |
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| 199 | /** @} */
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| 200 |
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| 201 | RT_C_DECLS_END
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| 202 |
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| 203 | #endif /* !IPRT_INCLUDED_fsvfs_h */
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| 204 |
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