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| -rw-r--r-- | include/iprt/fsvfs.h | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/include/iprt/fsvfs.h b/include/iprt/fsvfs.h new file mode 100644 index 00000000..d7d56788 --- /dev/null +++ b/include/iprt/fsvfs.h @@ -0,0 +1,185 @@ +/** @file + * IPRT - Filesystem, VFS implementations. + */ + +/* + * Copyright (C) 2006-2019 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. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL) only, as it comes in the "COPYING.CDDL" file of the + * VirtualBox OSE distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + */ + +#ifndef IPRT_INCLUDED_fsvfs_h +#define IPRT_INCLUDED_fsvfs_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include <iprt/cdefs.h> +#include <iprt/types.h> + + +RT_C_DECLS_BEGIN + +/** @defgroup grp_rt_fs_vfs VFS File System Implementations + * @ingroup grp_rt_fs + * @{ + */ + +/** + * Opens a FAT file system volume. + * + * @returns IPRT status code. + * @param hVfsFileIn The file or device backing the volume. + * @param fReadOnly Whether to mount it read-only. + * @param offBootSector The offset of the boot sector relative to the start + * of @a hVfsFileIn. Pass 0 for floppies. + * @param phVfs Where to return the virtual file system handle. + * @param pErrInfo Where to return additional error information. + */ +RTDECL(int) RTFsFatVolOpen(RTVFSFILE hVfsFileIn, bool fReadOnly, uint64_t offBootSector, PRTVFS phVfs, PRTERRINFO pErrInfo); + + +/** + * FAT type (format). + */ +typedef enum RTFSFATTYPE +{ + RTFSFATTYPE_INVALID = 0, + RTFSFATTYPE_FAT12, + RTFSFATTYPE_FAT16, + RTFSFATTYPE_FAT32, + RTFSFATTYPE_END +} RTFSFATTYPE; + + +/** @name RTFSFATVOL_FMT_F_XXX - RTFsFatVolFormat flags + * @{ */ +/** Perform a full format, filling unused sectors with 0xf6. */ +#define RTFSFATVOL_FMT_F_FULL UINT32_C(0) +/** Perform a quick format. + * I.e. just write the boot sector, FATs and root directory. */ +#define RTFSFATVOL_FMT_F_QUICK RT_BIT_32(0) +/** Mask containing all valid flags. */ +#define RTFSFATVOL_FMT_F_VALID_MASK UINT32_C(0x00000001) +/** @} */ + +/** + * Formats a FAT volume. + * + * @returns IRPT status code. + * @param hVfsFile The volume file. + * @param offVol The offset into @a hVfsFile of the file. + * Typically 0. + * @param cbVol The size of the volume. Pass 0 if the rest of + * hVfsFile should be used. + * @param fFlags See RTFSFATVOL_FMT_F_XXX. + * @param cbSector The logical sector size. Must be power of two. + * Optional, pass zero to use 512. + * @param cSectorsPerCluster Number of sectors per cluster. Power of two. + * Optional, pass zero to auto detect. + * @param enmFatType The FAT type (12, 16, 32) to use. + * Optional, pass RTFSFATTYPE_INVALID for default. + * @param cHeads The number of heads to report in the BPB. + * Optional, pass zero to auto detect. + * @param cSectorsPerTrack The number of sectors per track to put in the + * BPB. Optional, pass zero to auto detect. + * @param bMedia The media byte value and FAT ID to use. + * Optional, pass zero to auto detect. + * @param cRootDirEntries Number of root directory entries. + * Optional, pass zero to auto detect. + * @param cHiddenSectors Number of hidden sectors. Pass 0 for + * unpartitioned media. + * @param pErrInfo Additional error information, maybe. Optional. + */ +RTDECL(int) RTFsFatVolFormat(RTVFSFILE hVfsFile, uint64_t offVol, uint64_t cbVol, uint32_t fFlags, uint16_t cbSector, + uint16_t cSectorsPerCluster, RTFSFATTYPE enmFatType, uint32_t cHeads, uint32_t cSectorsPerTrack, + uint8_t bMedia, uint16_t cRootDirEntries, uint32_t cHiddenSectors, PRTERRINFO pErrInfo); + +/** + * Formats a 1.44MB floppy image. + * + * @returns IPRT status code. + * @param hVfsFile The image. Will be grown to 1.44MB if + * necessary. + * @param fQuick Whether to quick format the floppy or not. + */ +RTDECL(int) RTFsFatVolFormat144(RTVFSFILE hVfsFile, bool fQuick); + + + +/** + * Opens an EXT2/3/4 file system volume. + * + * @returns IPRT status code. + * @param hVfsFileIn The file or device backing the volume. + * @param fMntFlags RTVFSMNT_F_XXX. + * @param fExtFlags Reserved, MBZ. + * @param phVfs Where to return the virtual file system handle. + * @param pErrInfo Where to return additional error information. + */ +RTDECL(int) RTFsExtVolOpen(RTVFSFILE hVfsFileIn, uint32_t fMntFlags, uint32_t fExtFlags, PRTVFS phVfs, PRTERRINFO pErrInfo); + + + +/** @name RTFSISO9660_F_XXX - ISO 9660 mount flags. + * @{ */ +/** Do not use the UDF part if present. */ +#define RTFSISO9660_F_NO_UDF RT_BIT_32(0) +/** Do not use the joliet part. */ +#define RTFSISO9660_F_NO_JOLIET RT_BIT_32(1) +/** Do not use the rock ridge extensions if present. */ +#define RTFSISO9660_F_NO_ROCK RT_BIT_32(2) +/** Valid ISO 9660 mount option mask. */ +#define RTFSISO9660_F_VALID_MASK UINT32_C(0x00000007) +/** Checks if @a a_fNoType is the only acceptable volume type. */ +#define RTFSISO9660_F_IS_ONLY_TYPE(a_fFlags, a_fNoType) \ + ( ((a_fFlags) & (RTFSISO9660_F_NO_UDF | RTFSISO9660_F_NO_JOLIET | RTFSISO9660_F_NO_ROCK)) \ + == (~(a_fNoType) & (RTFSISO9660_F_NO_UDF | RTFSISO9660_F_NO_JOLIET | RTFSISO9660_F_NO_ROCK)) ) +/** @} */ + +/** + * Opens an ISO 9660 file system volume. + * + * @returns IPRT status code. + * @param hVfsFileIn The file or device backing the volume. + * @param fFlags RTFSISO9660_F_XXX. + * @param phVfs Where to return the virtual file system handle. + * @param pErrInfo Where to return additional error information. + */ +RTDECL(int) RTFsIso9660VolOpen(RTVFSFILE hVfsFileIn, uint32_t fFlags, PRTVFS phVfs, PRTERRINFO pErrInfo); + + +/** + * Opens an NTFS file system volume. + * + * @returns IPRT status code. + * @param hVfsFileIn The file or device backing the volume. + * @param fMntFlags RTVFSMNT_F_XXX. + * @param fNtfsFlags Reserved, MBZ. + * @param phVfs Where to return the virtual file system handle. + * @param pErrInfo Where to return additional error information. + */ +RTDECL(int) RTFsNtfsVolOpen(RTVFSFILE hVfsFileIn, uint32_t fMntFlags, uint32_t fNtfsFlags, PRTVFS phVfs, PRTERRINFO pErrInfo); + + +/** @} */ + +RT_C_DECLS_END + +#endif /* !IPRT_INCLUDED_fsvfs_h */ + |