181 lines
6.7 KiB
C
181 lines
6.7 KiB
C
/*
|
|
* volume.h - Exports for NTFS volume handling. Part of the Linux-NTFS project.
|
|
*
|
|
* Copyright (c) 2000-2003 Anton Altaparmakov
|
|
*
|
|
* 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 (in the main directory of the Linux-NTFS
|
|
* distribution in the file COPYING); if not, write to the Free Software
|
|
* Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef _NTFS_VOLUME_H
|
|
#define _NTFS_VOLUME_H
|
|
|
|
#include "config.h"
|
|
|
|
#include <stdio.h>
|
|
#include <sys/mount.h>
|
|
#ifdef HAVE_MNTENT_H
|
|
# include <mntent.h>
|
|
#endif
|
|
|
|
/* Cygwin doesn't seem to have MS_RDONLY, so we define it here. */
|
|
#if defined(__CYGWIN32__) && !defined(MS_RDONLY)
|
|
typedef enum {
|
|
MS_RDONLY = 1,
|
|
} MS_MOUNT;
|
|
#endif
|
|
|
|
/* Forward declaration */
|
|
typedef struct _ntfs_volume ntfs_volume;
|
|
|
|
#include "types.h"
|
|
#include "support.h"
|
|
#include "inode.h"
|
|
#include "device.h"
|
|
|
|
/*
|
|
* Flags returned by the ntfs_check_if_mounted() function.
|
|
*/
|
|
typedef enum {
|
|
NTFS_MF_MOUNTED = 1, /* Device is mounted. */
|
|
NTFS_MF_ISROOT = 2, /* Device is mounted as system root. */
|
|
NTFS_MF_READONLY = 4, /* Device is mounted read-only. */
|
|
} ntfs_mount_flags;
|
|
|
|
extern int ntfs_check_if_mounted(const char *file, unsigned long *mnt_flags);
|
|
|
|
/*
|
|
* Defined bits for the state field in the ntfs_volume structure.
|
|
*/
|
|
typedef enum {
|
|
NV_ReadOnly, /* 1: Volume is read-only. */
|
|
NV_CaseSensitive, /* 1: Volume is mounted case-sensitive. */
|
|
} ntfs_volume_state_bits;
|
|
|
|
#define test_nvol_flag(nv, flag) test_bit(NV_##flag, (nv)->state)
|
|
#define set_nvol_flag(nv, flag) set_bit(NV_##flag, (nv)->state)
|
|
#define clear_nvol_flag(nv, flag) clear_bit(NV_##flag, (nv)->state)
|
|
|
|
#define NVolReadOnly(nv) test_nvol_flag(nv, ReadOnly)
|
|
#define NVolSetReadOnly(nv) set_nvol_flag(nv, ReadOnly)
|
|
#define NVolClearReadOnly(nv) clear_nvol_flag(nv, ReadOnly)
|
|
|
|
#define NVolCaseSensitive(nv) test_nvol_flag(nv, CaseSensitive)
|
|
#define NVolSetCaseSensitive(nv) set_nvol_flag(nv, CaseSensitive)
|
|
#define NVolClearCaseSensitive(nv) clear_nvol_flag(nv, CaseSensitive)
|
|
|
|
/*
|
|
* NTFS version 1.1 and 1.2 are used by Windows NT4.
|
|
* NTFS version 2.x is used by Windows 2000 Beta
|
|
* NTFS version 3.0 is used by Windows 2000.
|
|
* NTFS version 3.1 is used by Windows XP and Windows Server 2003.
|
|
*/
|
|
|
|
#define NTFS_V1_1(major, minor) ((major) == 1 && (minor) == 1)
|
|
#define NTFS_V1_2(major, minor) ((major) == 1 && (minor) == 2)
|
|
#define NTFS_V2_X(major, minor) ((major) == 2)
|
|
#define NTFS_V3_0(major, minor) ((major) == 3 && (minor) == 0)
|
|
#define NTFS_V3_1(major, minor) ((major) == 3 && (minor) == 1)
|
|
|
|
#define NTFS_BUF_SIZE 8192
|
|
|
|
/*
|
|
* ntfs_volume - structure describing an open volume in memory
|
|
*/
|
|
struct _ntfs_volume {
|
|
struct ntfs_device *dev;/* NTFS device associated with the volume. */
|
|
char *vol_name; /* Name of the volume. */
|
|
unsigned long state; /* NTFS specific flags describing this volume.
|
|
See ntfs_volume_state_bits above. */
|
|
u8 major_ver; /* Ntfs major version of volume. */
|
|
u8 minor_ver; /* Ntfs minor version of volume. */
|
|
u16 flags; /* Bit array of VOLUME_* flags. */
|
|
|
|
u16 sector_size; /* Byte size of a sector. */
|
|
u8 sector_size_bits; /* Log(2) of the byte size of a sector. */
|
|
u32 cluster_size; /* Byte size of a cluster. */
|
|
u32 mft_record_size; /* Byte size of a mft record. */
|
|
u8 cluster_size_bits; /* Log(2) of the byte size of a cluster. */
|
|
u8 mft_record_size_bits;/* Log(2) of the byte size of a mft record. */
|
|
|
|
/* Variables used by the cluster and mft allocators. */
|
|
u8 mft_zone_multiplier; /* Initial mft zone multiplier. */
|
|
s64 mft_data_pos; /* Mft record number at which to allocate the
|
|
next mft record. */
|
|
LCN mft_zone_start; /* First cluster of the mft zone. */
|
|
LCN mft_zone_end; /* First cluster beyond the mft zone. */
|
|
LCN mft_zone_pos; /* Current position in the mft zone. */
|
|
LCN data1_zone_pos; /* Current position in the first data zone. */
|
|
LCN data2_zone_pos; /* Current position in the second data zone. */
|
|
|
|
s64 nr_clusters; /* Volume size in clusters, hence also the
|
|
number of bits in lcn_bitmap. */
|
|
ntfs_inode *lcnbmp_ni; /* ntfs_inode structure for FILE_Bitmap. */
|
|
ntfs_attr *lcnbmp_na; /* ntfs_attr structure for the data attribute
|
|
of FILE_Bitmap. Each bit represents a
|
|
cluster on the volume, bit 0 representing
|
|
lcn 0 and so on. A set bit means that the
|
|
cluster and vice versa. */
|
|
|
|
s64 nr_mft_records; /* Number of records in the mft, equals the
|
|
number of bits in mft_bitmap. */
|
|
LCN mft_lcn; /* Logical cluster number of the data attribute
|
|
for FILE_MFT. */
|
|
ntfs_inode *mft_ni; /* ntfs_inode structure for FILE_MFT. */
|
|
ntfs_attr *mft_na; /* ntfs_attr structure for the data attribute
|
|
of FILE_MFT. */
|
|
ntfs_attr *mftbmp_na; /* ntfs_attr structure for the bitmap attribute
|
|
of FILE_MFT. Each bit represents an mft
|
|
record in the $DATA attribute, bit 0
|
|
representing mft record 0 and so on. A set
|
|
bit means that the mft record is in use and
|
|
vice versa. */
|
|
|
|
int mftmirr_size; /* Size of the FILE_MFTMirr in mft records. */
|
|
LCN mftmirr_lcn; /* Logical cluster number of the data attribute
|
|
for FILE_MFTMirr. */
|
|
ntfs_inode *mftmirr_ni; /* ntfs_inode structure for FILE_MFTMirr. */
|
|
ntfs_attr *mftmirr_na; /* ntfs_attr structure for the data attribute
|
|
of FILE_MFTMirr. */
|
|
|
|
uchar_t *upcase; /* Upper case equivalents of all 65536 2-byte
|
|
Unicode characters. Obtained from
|
|
FILE_UpCase. */
|
|
u32 upcase_len; /* Length in Unicode characters of the upcase
|
|
table. */
|
|
|
|
ATTR_DEF *attrdef; /* Attribute definitions. Obtained from
|
|
FILE_AttrDef. */
|
|
u32 attrdef_len; /* Size of the attribute definition table in
|
|
bytes. */
|
|
};
|
|
|
|
extern ntfs_volume *ntfs_volume_alloc(void);
|
|
|
|
extern ntfs_volume *ntfs_volume_startup(struct ntfs_device *dev,
|
|
unsigned long rwflag);
|
|
|
|
extern ntfs_volume *ntfs_device_mount(struct ntfs_device *dev,
|
|
unsigned long rwflag);
|
|
extern ntfs_volume *ntfs_mount(const char *name, unsigned long rwflag);
|
|
extern int ntfs_umount(ntfs_volume *vol, const BOOL force);
|
|
|
|
extern int ntfs_version_is_supported(ntfs_volume *vol);
|
|
extern int ntfs_logfile_reset(ntfs_volume *vol);
|
|
extern int ntfs_volume_set_flags(ntfs_volume *v, const u16 flags);
|
|
|
|
#endif /* defined _NTFS_VOLUME_H */
|
|
|