/** @file * IPRT - Filesystem, VFS implementations. */ /* * Copyright (C) 2006-2022 Oracle and/or its affiliates. * * This file is part of VirtualBox base platform packages, as * available from https://www.virtualbox.org. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation, in version 3 of the * License. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . * * The contents of this file may alternatively be used under the terms * of the Common Development and Distribution License Version 1.0 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included * in the VirtualBox 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. * * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 */ #ifndef IPRT_INCLUDED_fsvfs_h #define IPRT_INCLUDED_fsvfs_h #ifndef RT_WITHOUT_PRAGMA_ONCE # pragma once #endif #include #include 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); /** * Formats a 2.88MB 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) RTFsFatVolFormat288(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 */