198 lines
5.1 KiB
C
198 lines
5.1 KiB
C
/* ntfs.h - header for the NTFS filesystem */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2007,2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GRUB_NTFS_H
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#define GRUB_NTFS_H 1
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enum
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{
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GRUB_NTFS_FILE_MFT = 0,
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GRUB_NTFS_FILE_MFTMIRR = 1,
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GRUB_NTFS_FILE_LOGFILE = 2,
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GRUB_NTFS_FILE_VOLUME = 3,
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GRUB_NTFS_FILE_ATTRDEF = 4,
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GRUB_NTFS_FILE_ROOT = 5,
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GRUB_NTFS_FILE_BITMAP = 6,
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GRUB_NTFS_FILE_BOOT = 7,
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GRUB_NTFS_FILE_BADCLUS = 8,
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GRUB_NTFS_FILE_QUOTA = 9,
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GRUB_NTFS_FILE_UPCASE = 10,
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};
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enum
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{
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GRUB_NTFS_AT_STANDARD_INFORMATION = 0x10,
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GRUB_NTFS_AT_ATTRIBUTE_LIST = 0x20,
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GRUB_NTFS_AT_FILENAME = 0x30,
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GRUB_NTFS_AT_OBJECT_ID = 0x40,
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GRUB_NTFS_AT_SECURITY_DESCRIPTOR = 0x50,
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GRUB_NTFS_AT_VOLUME_NAME = 0x60,
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GRUB_NTFS_AT_VOLUME_INFORMATION = 0x70,
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GRUB_NTFS_AT_DATA = 0x80,
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GRUB_NTFS_AT_INDEX_ROOT = 0x90,
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GRUB_NTFS_AT_INDEX_ALLOCATION = 0xA0,
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GRUB_NTFS_AT_BITMAP = 0xB0,
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GRUB_NTFS_AT_SYMLINK = 0xC0,
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GRUB_NTFS_AT_EA_INFORMATION = 0xD0,
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GRUB_NTFS_AT_EA = 0xE0,
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};
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enum
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{
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GRUB_NTFS_ATTR_READ_ONLY = 0x1,
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GRUB_NTFS_ATTR_HIDDEN = 0x2,
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GRUB_NTFS_ATTR_SYSTEM = 0x4,
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GRUB_NTFS_ATTR_ARCHIVE = 0x20,
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GRUB_NTFS_ATTR_DEVICE = 0x40,
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GRUB_NTFS_ATTR_NORMAL = 0x80,
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GRUB_NTFS_ATTR_TEMPORARY = 0x100,
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GRUB_NTFS_ATTR_SPARSE = 0x200,
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GRUB_NTFS_ATTR_REPARSE = 0x400,
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GRUB_NTFS_ATTR_COMPRESSED = 0x800,
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GRUB_NTFS_ATTR_OFFLINE = 0x1000,
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GRUB_NTFS_ATTR_NOT_INDEXED = 0x2000,
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GRUB_NTFS_ATTR_ENCRYPTED = 0x4000,
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GRUB_NTFS_ATTR_DIRECTORY = 0x10000000,
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GRUB_NTFS_ATTR_INDEX_VIEW = 0x20000000
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};
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enum
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{
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GRUB_NTFS_FLAG_COMPRESSED = 1,
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GRUB_NTFS_FLAG_ENCRYPTED = 0x4000,
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GRUB_NTFS_FLAG_SPARSE = 0x8000
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};
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#define GRUB_NTFS_BLK_SHR GRUB_DISK_SECTOR_BITS
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#define GRUB_NTFS_MAX_MFT (4096 >> GRUB_NTFS_BLK_SHR)
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#define GRUB_NTFS_MAX_IDX (16384 >> GRUB_NTFS_BLK_SHR)
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#define GRUB_NTFS_COM_LEN 4096
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#define GRUB_NTFS_COM_LOG_LEN 12
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#define GRUB_NTFS_COM_SEC (GRUB_NTFS_COM_LEN >> GRUB_NTFS_BLK_SHR)
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#define GRUB_NTFS_LOG_COM_SEC (GRUB_NTFS_COM_LOG_LEN - GRUB_NTFS_BLK_SHR)
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enum
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{
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GRUB_NTFS_AF_ALST = 1,
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GRUB_NTFS_AF_MMFT = 2,
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GRUB_NTFS_AF_GPOS = 4,
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};
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enum
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{
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GRUB_NTFS_RF_BLNK = 1
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};
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struct grub_ntfs_bpb
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{
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grub_uint8_t jmp_boot[3];
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grub_uint8_t oem_name[8];
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grub_uint16_t bytes_per_sector;
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grub_uint8_t sectors_per_cluster;
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grub_uint8_t reserved_1[7];
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grub_uint8_t media;
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grub_uint16_t reserved_2;
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grub_uint16_t sectors_per_track;
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grub_uint16_t num_heads;
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grub_uint32_t num_hidden_sectors;
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grub_uint32_t reserved_3;
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grub_uint8_t bios_drive;
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grub_uint8_t reserved_4[3];
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grub_uint64_t num_total_sectors;
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grub_uint64_t mft_lcn;
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grub_uint64_t mft_mirr_lcn;
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grub_int8_t clusters_per_mft;
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grub_int8_t reserved_5[3];
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grub_int8_t clusters_per_index;
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grub_int8_t reserved_6[3];
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grub_uint64_t num_serial;
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grub_uint32_t checksum;
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} GRUB_PACKED;
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struct grub_ntfs_attr
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{
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int flags;
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grub_uint8_t *emft_buf, *edat_buf;
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grub_uint8_t *attr_cur, *attr_nxt, *attr_end;
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grub_uint32_t save_pos;
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grub_uint8_t *sbuf;
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struct grub_ntfs_file *mft;
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};
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struct grub_ntfs_file
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{
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struct grub_ntfs_data *data;
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grub_uint8_t *buf;
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grub_uint64_t size;
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grub_uint64_t mtime;
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grub_uint64_t ino;
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int inode_read;
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struct grub_ntfs_attr attr;
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};
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struct grub_ntfs_data
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{
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struct grub_ntfs_file cmft;
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struct grub_ntfs_file mmft;
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grub_disk_t disk;
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grub_uint64_t mft_size;
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grub_uint64_t idx_size;
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int log_spc;
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grub_uint64_t mft_start;
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grub_uint64_t uuid;
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};
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struct grub_ntfs_comp_table_element
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{
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grub_uint32_t next_vcn;
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grub_uint32_t next_lcn;
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};
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struct grub_ntfs_comp
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{
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grub_disk_t disk;
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int comp_head, comp_tail;
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struct grub_ntfs_comp_table_element comp_table[16];
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grub_uint32_t cbuf_ofs, cbuf_vcn;
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int log_spc;
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grub_uint8_t *cbuf;
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};
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struct grub_ntfs_rlst
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{
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int flags;
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grub_disk_addr_t target_vcn, curr_vcn, next_vcn, curr_lcn;
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grub_uint8_t *cur_run;
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struct grub_ntfs_attr *attr;
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struct grub_ntfs_comp comp;
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void *file;
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};
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typedef grub_err_t (*grub_ntfscomp_func_t) (grub_uint8_t *dest,
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grub_disk_addr_t ofs,
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grub_size_t len,
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struct grub_ntfs_rlst * ctx);
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extern grub_ntfscomp_func_t grub_ntfscomp_func;
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grub_err_t grub_ntfs_read_run_list (struct grub_ntfs_rlst *ctx);
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#endif /* ! GRUB_NTFS_H */
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