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/* ntfs.h - header for the NTFS filesystem */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2007,2009 Free Software Foundation, Inc.
*
* GRUB 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 3 of the License, or
* (at your option) any later version.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GRUB_NTFS_H
#define GRUB_NTFS_H 1
enum
{
GRUB_NTFS_FILE_MFT = 0,
GRUB_NTFS_FILE_MFTMIRR = 1,
GRUB_NTFS_FILE_LOGFILE = 2,
GRUB_NTFS_FILE_VOLUME = 3,
GRUB_NTFS_FILE_ATTRDEF = 4,
GRUB_NTFS_FILE_ROOT = 5,
GRUB_NTFS_FILE_BITMAP = 6,
GRUB_NTFS_FILE_BOOT = 7,
GRUB_NTFS_FILE_BADCLUS = 8,
GRUB_NTFS_FILE_QUOTA = 9,
GRUB_NTFS_FILE_UPCASE = 10,
};
enum
{
GRUB_NTFS_AT_STANDARD_INFORMATION = 0x10,
GRUB_NTFS_AT_ATTRIBUTE_LIST = 0x20,
GRUB_NTFS_AT_FILENAME = 0x30,
GRUB_NTFS_AT_OBJECT_ID = 0x40,
GRUB_NTFS_AT_SECURITY_DESCRIPTOR = 0x50,
GRUB_NTFS_AT_VOLUME_NAME = 0x60,
GRUB_NTFS_AT_VOLUME_INFORMATION = 0x70,
GRUB_NTFS_AT_DATA = 0x80,
GRUB_NTFS_AT_INDEX_ROOT = 0x90,
GRUB_NTFS_AT_INDEX_ALLOCATION = 0xA0,
GRUB_NTFS_AT_BITMAP = 0xB0,
GRUB_NTFS_AT_SYMLINK = 0xC0,
GRUB_NTFS_AT_EA_INFORMATION = 0xD0,
GRUB_NTFS_AT_EA = 0xE0,
};
enum
{
GRUB_NTFS_ATTR_READ_ONLY = 0x1,
GRUB_NTFS_ATTR_HIDDEN = 0x2,
GRUB_NTFS_ATTR_SYSTEM = 0x4,
GRUB_NTFS_ATTR_ARCHIVE = 0x20,
GRUB_NTFS_ATTR_DEVICE = 0x40,
GRUB_NTFS_ATTR_NORMAL = 0x80,
GRUB_NTFS_ATTR_TEMPORARY = 0x100,
GRUB_NTFS_ATTR_SPARSE = 0x200,
GRUB_NTFS_ATTR_REPARSE = 0x400,
GRUB_NTFS_ATTR_COMPRESSED = 0x800,
GRUB_NTFS_ATTR_OFFLINE = 0x1000,
GRUB_NTFS_ATTR_NOT_INDEXED = 0x2000,
GRUB_NTFS_ATTR_ENCRYPTED = 0x4000,
GRUB_NTFS_ATTR_DIRECTORY = 0x10000000,
GRUB_NTFS_ATTR_INDEX_VIEW = 0x20000000
};
enum
{
GRUB_NTFS_FLAG_COMPRESSED = 1,
GRUB_NTFS_FLAG_ENCRYPTED = 0x4000,
GRUB_NTFS_FLAG_SPARSE = 0x8000
};
#define GRUB_NTFS_BLK_SHR GRUB_DISK_SECTOR_BITS
#define GRUB_NTFS_MAX_MFT (4096 >> GRUB_NTFS_BLK_SHR)
#define GRUB_NTFS_MAX_IDX (16384 >> GRUB_NTFS_BLK_SHR)
#define GRUB_NTFS_COM_LEN 4096
#define GRUB_NTFS_COM_LOG_LEN 12
#define GRUB_NTFS_COM_SEC (GRUB_NTFS_COM_LEN >> GRUB_NTFS_BLK_SHR)
#define GRUB_NTFS_LOG_COM_SEC (GRUB_NTFS_COM_LOG_LEN - GRUB_NTFS_BLK_SHR)
#define GRUB_NTFS_ATTRIBUTE_HEADER_SIZE 16
/*
* To make attribute validation clearer the offsets for each value in the
* attribute headers are defined as macros.
*
* These offsets are all from:
* https://flatcap.github.io/linux-ntfs/ntfs/concepts/attribute_header.html
*/
/* These offsets are part of the attribute header. */
#define GRUB_NTFS_ATTRIBUTE_LENGTH 4
#define GRUB_NTFS_ATTRIBUTE_RESIDENT 8
#define GRUB_NTFS_ATTRIBUTE_NAME_LENGTH 9
#define GRUB_NTFS_ATTRIBUTE_NAME_OFFSET 10
/* Offsets for values needed for resident data. */
#define GRUB_NTFS_ATTRIBUTE_RES_LENGTH 16
#define GRUB_NTFS_ATTRIBUTE_RES_OFFSET 20
/* Offsets for values needed for non-resident data. */
#define GRUB_NTFS_ATTRIBUTE_DATA_RUNS 32
#define GRUB_NTFS_ATTRIBUTE_COMPRESSION_UNIT_SIZE 34
enum
{
GRUB_NTFS_AF_ALST = 1,
GRUB_NTFS_AF_MMFT = 2,
GRUB_NTFS_AF_GPOS = 4,
};
enum
{
GRUB_NTFS_RF_BLNK = 1
};
struct grub_ntfs_bpb
{
grub_uint8_t jmp_boot[3];
grub_uint8_t oem_name[8];
grub_uint16_t bytes_per_sector;
grub_uint8_t sectors_per_cluster;
grub_uint8_t reserved_1[7];
grub_uint8_t media;
grub_uint16_t reserved_2;
grub_uint16_t sectors_per_track;
grub_uint16_t num_heads;
grub_uint32_t num_hidden_sectors;
grub_uint32_t reserved_3;
grub_uint8_t bios_drive;
grub_uint8_t reserved_4[3];
grub_uint64_t num_total_sectors;
grub_uint64_t mft_lcn;
grub_uint64_t mft_mirr_lcn;
grub_int8_t clusters_per_mft;
grub_int8_t reserved_5[3];
grub_int8_t clusters_per_index;
grub_int8_t reserved_6[3];
grub_uint64_t num_serial;
grub_uint32_t checksum;
} GRUB_PACKED;
struct grub_ntfs_attr
{
int flags;
grub_uint8_t *emft_buf, *edat_buf;
grub_uint8_t *attr_cur, *attr_nxt, *attr_end;
grub_uint32_t save_pos;
grub_uint8_t *sbuf;
grub_uint8_t *end;
struct grub_ntfs_file *mft;
};
struct grub_ntfs_file
{
struct grub_ntfs_data *data;
grub_uint8_t *buf;
grub_uint64_t size;
grub_uint64_t mtime;
grub_uint64_t ino;
int inode_read;
struct grub_ntfs_attr attr;
};
struct grub_ntfs_data
{
struct grub_ntfs_file cmft;
struct grub_ntfs_file mmft;
grub_disk_t disk;
grub_uint64_t mft_size;
grub_uint64_t idx_size;
int log_spc;
grub_uint64_t mft_start;
grub_uint64_t uuid;
};
struct grub_ntfs_comp_table_element
{
grub_uint32_t next_vcn;
grub_uint32_t next_lcn;
};
struct grub_ntfs_comp
{
grub_disk_t disk;
int comp_head, comp_tail;
struct grub_ntfs_comp_table_element comp_table[16];
grub_uint32_t cbuf_ofs, cbuf_vcn;
int log_spc;
grub_uint8_t *cbuf;
};
struct grub_ntfs_rlst
{
int flags;
grub_disk_addr_t target_vcn, curr_vcn, next_vcn, curr_lcn;
grub_uint8_t *cur_run;
struct grub_ntfs_attr *attr;
struct grub_ntfs_comp comp;
void *file;
};
typedef grub_err_t (*grub_ntfscomp_func_t) (grub_uint8_t *dest,
grub_disk_addr_t ofs,
grub_size_t len,
struct grub_ntfs_rlst * ctx);
extern grub_ntfscomp_func_t grub_ntfscomp_func;
grub_err_t grub_ntfs_read_run_list (struct grub_ntfs_rlst *ctx);
#endif /* ! GRUB_NTFS_H */
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