usbloadergx/source/libntfs/ntfs.h
2010-09-24 00:48:03 +00:00

154 lines
6.8 KiB
C

/**
* ntfs.h - Simple functionality for startup, mounting and unmounting of NTFS-based devices.
*
* Copyright (c) 2009 Rhys "Shareese" Koedijk
* Copyright (c) 2006 Michael "Chishm" Chisholm
*
* This program/include file 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; either version 2 of the License, or
* (at your option) any later version.
*
* This program/include file 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, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _LIBNTFS_H
#define _LIBNTFS_H
#ifdef __cplusplus
extern "C"
{
#endif
#include <gctypes.h>
#include <gccore.h>
#include <ogc/disc_io.h>
/* NTFS errno values */
#define ENOPART 3000 /* No partition was found */
#define EINVALPART 3001 /* Specified partition is invalid or not supported */
#define EDIRTY 3002 /* Volume is dirty and NTFS_RECOVER was not specified during mount */
#define EHIBERNATED 3003 /* Volume is hibernated and NTFS_IGNORE_HIBERFILE was not specified during mount */
/* NTFS cache options */
#define CACHE_DEFAULT_PAGE_COUNT 8 /* The default number of pages in the cache */
#define CACHE_DEFAULT_PAGE_SIZE 128 /* The default number of sectors per cache page */
/* NTFS mount flags */
#define NTFS_DEFAULT 0x00000000 /* Standard mount, expects a clean, non-hibernated volume */
#define NTFS_SHOW_HIDDEN_FILES 0x00000001 /* Display hidden files when enumerating directories */
#define NTFS_SHOW_SYSTEM_FILES 0x00000002 /* Display system files when enumerating directories */
#define NTFS_UPDATE_ACCESS_TIMES 0x00000004 /* Update file and directory access times */
#define NTFS_RECOVER 0x00000008 /* Reset $LogFile if dirty (i.e. from unclean disconnect) */
#define NTFS_IGNORE_HIBERFILE 0x00000010 /* Mount even if volume is hibernated */
#define NTFS_READ_ONLY 0x00000020 /* Mount in read only mode */
#define NTFS_IGNORE_CASE 0x00000040 /* Ignore case sensitivity. Everything must be and will be provided in lowercase. */
#define NTFS_SU NTFS_SHOW_HIDDEN_FILES | NTFS_SHOW_SYSTEM_FILES
#define NTFS_FORCE NTFS_RECOVER | NTFS_IGNORE_HIBERFILE
/**
* ntfs_md - NTFS mount descriptor
*/
typedef struct _ntfs_md
{
char name[32]; /* Mount name (can be accessed as "name:/") */
const DISC_INTERFACE *interface; /* Block device containing the mounted partition */
sec_t startSector; /* Local block address to first sector of partition */
} ntfs_md;
/**
* Find all NTFS partitions on a block device.
*
* @param INTERFACE The block device to search
* @param PARTITIONS (out) A pointer to receive the array of partition start sectors
*
* @return The number of entries in PARTITIONS or -1 if an error occurred (see errno)
* @note The caller is responsible for freeing PARTITIONS when finished with it
*/
extern int ntfsFindPartitions(const DISC_INTERFACE *interface, sec_t **partitions);
/**
* Mount all NTFS partitions on all inserted block devices.
*
* @param MOUNTS (out) A pointer to receive the array of mount descriptors
* @param FLAGS Additional mounting flags. (see above)
*
* @return The number of entries in MOUNTS or -1 if an error occurred (see errno)
* @note The caller is responsible for freeing MOUNTS when finished with it
* @note All device caches are setup using default values (see above)
*/
extern int ntfsMountAll(ntfs_md **mounts, u32 flags);
/**
* Mount all NTFS partitions on a block devices.
*
* @param INTERFACE The block device to mount.
* @param MOUNTS (out) A pointer to receive the array of mount descriptors
* @param FLAGS Additional mounting flags. (see above)
*
* @return The number of entries in MOUNTS or -1 if an error occurred (see errno)
* @note The caller is responsible for freeing MOUNTS when finished with it
* @note The device cache is setup using default values (see above)
*/
extern int ntfsMountDevice(const DISC_INTERFACE* interface, ntfs_md **mounts, u32 flags);
/**
* Mount a NTFS partition from a specific sector on a block device.
*
* @param NAME The name to mount the device under (can then be accessed as "NAME:/")
* @param INTERFACE The block device to mount
* @param STARTSECTOR The sector the partition begins at (see @ntfsFindPartitions)
* @param CACHEPAGECOUNT The total number of pages in the device cache
* @param CACHEPAGESIZE The number of sectors per cache page
* @param FLAGS Additional mounting flags (see above)
*
* @return True if mount was successful, false if no partition was found or an error occurred (see errno)
* @note ntfsFindPartitions should be used first to locate the partitions start sector
*/
extern bool ntfsMount(const char *name, const DISC_INTERFACE *interface, sec_t startSector, u32 cachePageCount,
u32 cachePageSize, u32 flags);
/**
* Unmount a NTFS partition.
*
* @param NAME The name of mount used in ntfsMountSimple() and ntfsMount()
* @param FORCE If true unmount even if the device is busy (may lead to data lose)
*/
extern void ntfsUnmount(const char *name, bool force);
/**
* Get the volume name of a mounted NTFS partition.
*
* @param NAME The name of mount (see @ntfsMountAll, @ntfsMountDevice, and @ntfsMount)
*
* @return The volumes name if successful or NULL if an error occurred (see errno)
*/
extern const char *ntfsGetVolumeName(const char *name);
/**
* Set the volume name of a mounted NTFS partition.
*
* @param NAME The name of mount (see @ntfsMountAll, @ntfsMountDevice, and @ntfsMount)
* @param VOLUMENAME The new volume name
*
* @return True if mount was successful, false if an error occurred (see errno)
* @note The mount must be write-enabled else this will fail
*/
extern bool ntfsSetVolumeName(const char *name, const char *volumeName);
typedef int (*_ntfs_frag_append_t)(void *ff, u32 offset, u32 sector, u32 count);
int _NTFS_get_fragments(const char *path, _ntfs_frag_append_t append_fragment, void *callback_data);
#ifdef __cplusplus
}
#endif
#endif /* _LIBNTFS_H */