arch/all-pc/boot/grub2-aros/include/grub/ntfs.h

   1 /* ntfs.h - header for the NTFS filesystem */
   2 /*
   3  *  GRUB  --  GRand Unified Bootloader
   4  *  Copyright (C) 2007,2009  Free Software Foundation, Inc.
   5  *
   6  *  GRUB is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  GRUB is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifndef GRUB_NTFS_H
  21 #define GRUB_NTFS_H     1
  22
  23 enum
  24   {
  25     GRUB_NTFS_FILE_MFT     =  0,
  26     GRUB_NTFS_FILE_MFTMIRR =  1,
  27     GRUB_NTFS_FILE_LOGFILE =  2,
  28     GRUB_NTFS_FILE_VOLUME  =  3,
  29     GRUB_NTFS_FILE_ATTRDEF =  4,
  30     GRUB_NTFS_FILE_ROOT    =  5,
  31     GRUB_NTFS_FILE_BITMAP  =  6,
  32     GRUB_NTFS_FILE_BOOT    =  7,
  33     GRUB_NTFS_FILE_BADCLUS =  8,
  34     GRUB_NTFS_FILE_QUOTA   =  9,
  35     GRUB_NTFS_FILE_UPCASE  = 10,
  36   };
  37
  38 enum
  39   {
  40     GRUB_NTFS_AT_STANDARD_INFORMATION = 0x10,
  41     GRUB_NTFS_AT_ATTRIBUTE_LIST       = 0x20,
  42     GRUB_NTFS_AT_FILENAME             = 0x30,
  43     GRUB_NTFS_AT_OBJECT_ID            = 0x40,
  44     GRUB_NTFS_AT_SECURITY_DESCRIPTOR  = 0x50,
  45     GRUB_NTFS_AT_VOLUME_NAME          = 0x60,
  46     GRUB_NTFS_AT_VOLUME_INFORMATION   = 0x70,
  47     GRUB_NTFS_AT_DATA                 = 0x80,
  48     GRUB_NTFS_AT_INDEX_ROOT           = 0x90,
  49     GRUB_NTFS_AT_INDEX_ALLOCATION     = 0xA0,
  50     GRUB_NTFS_AT_BITMAP               = 0xB0,
  51     GRUB_NTFS_AT_SYMLINK              = 0xC0,
  52     GRUB_NTFS_AT_EA_INFORMATION       = 0xD0,
  53     GRUB_NTFS_AT_EA                   = 0xE0,
  54   };
  55
  56 enum
  57   {
  58     GRUB_NTFS_ATTR_READ_ONLY   = 0x1,
  59     GRUB_NTFS_ATTR_HIDDEN      = 0x2,
  60     GRUB_NTFS_ATTR_SYSTEM      = 0x4,
  61     GRUB_NTFS_ATTR_ARCHIVE     = 0x20,
  62     GRUB_NTFS_ATTR_DEVICE      = 0x40,
  63     GRUB_NTFS_ATTR_NORMAL      = 0x80,
  64     GRUB_NTFS_ATTR_TEMPORARY   = 0x100,
  65     GRUB_NTFS_ATTR_SPARSE      = 0x200,
  66     GRUB_NTFS_ATTR_REPARSE     = 0x400,
  67     GRUB_NTFS_ATTR_COMPRESSED  = 0x800,
  68     GRUB_NTFS_ATTR_OFFLINE     = 0x1000,
  69     GRUB_NTFS_ATTR_NOT_INDEXED = 0x2000,
  70     GRUB_NTFS_ATTR_ENCRYPTED   = 0x4000,
  71     GRUB_NTFS_ATTR_DIRECTORY   = 0x10000000,
  72     GRUB_NTFS_ATTR_INDEX_VIEW  = 0x20000000
  73   };
  74
  75 enum
  76   {
  77     GRUB_NTFS_FLAG_COMPRESSED           = 1,
  78     GRUB_NTFS_FLAG_ENCRYPTED            = 0x4000,
  79     GRUB_NTFS_FLAG_SPARSE               = 0x8000
  80   };
  81
  82 #define GRUB_NTFS_BLK_SHR               GRUB_DISK_SECTOR_BITS
  83
  84 #define GRUB_NTFS_MAX_MFT               (4096 >> GRUB_NTFS_BLK_SHR)
  85 #define GRUB_NTFS_MAX_IDX               (16384 >> GRUB_NTFS_BLK_SHR)
  86
  87 #define GRUB_NTFS_COM_LEN               4096
  88 #define GRUB_NTFS_COM_LOG_LEN   12
  89 #define GRUB_NTFS_COM_SEC               (GRUB_NTFS_COM_LEN >> GRUB_NTFS_BLK_SHR)
  90
  91 enum
  92   {
  93     GRUB_NTFS_AF_ALST           = 1,
  94     GRUB_NTFS_AF_MMFT           = 2,
  95     GRUB_NTFS_AF_GPOS           = 4,
  96   };
  97
  98 enum
  99   {
 100     GRUB_NTFS_RF_COMP           = 1,
 101     GRUB_NTFS_RF_CBLK           = 2,
 102     GRUB_NTFS_RF_BLNK           = 4
 103   };
 104
 105 struct grub_ntfs_bpb
 106 {
 107   grub_uint8_t jmp_boot[3];
 108   grub_uint8_t oem_name[8];
 109   grub_uint16_t bytes_per_sector;
 110   grub_uint8_t sectors_per_cluster;
 111   grub_uint8_t reserved_1[7];
 112   grub_uint8_t media;
 113   grub_uint16_t reserved_2;
 114   grub_uint16_t sectors_per_track;
 115   grub_uint16_t num_heads;
 116   grub_uint32_t num_hidden_sectors;
 117   grub_uint32_t reserved_3;
 118   grub_uint8_t bios_drive;
 119   grub_uint8_t reserved_4[3];
 120   grub_uint64_t num_total_sectors;
 121   grub_uint64_t mft_lcn;
 122   grub_uint64_t mft_mirr_lcn;
 123   grub_int8_t clusters_per_mft;
 124   grub_int8_t reserved_5[3];
 125   grub_int8_t clusters_per_index;
 126   grub_int8_t reserved_6[3];
 127   grub_uint64_t num_serial;
 128   grub_uint32_t checksum;
 129 } __attribute__ ((packed));
 130
 131 struct grub_ntfs_attr
 132 {
 133   int flags;
 134   char *emft_buf, *edat_buf;
 135   char *attr_cur, *attr_nxt, *attr_end;
 136   grub_uint32_t save_pos;
 137   char *sbuf;
 138   struct grub_ntfs_file *mft;
 139 };
 140
 141 struct grub_ntfs_file
 142 {
 143   struct grub_ntfs_data *data;
 144   char *buf;
 145   grub_uint64_t size;
 146   grub_uint64_t mtime;
 147   grub_uint32_t ino;
 148   int inode_read;
 149   struct grub_ntfs_attr attr;
 150 };
 151
 152 struct grub_ntfs_data
 153 {
 154   struct grub_ntfs_file cmft;
 155   struct grub_ntfs_file mmft;
 156   grub_disk_t disk;
 157   grub_uint32_t mft_size;
 158   grub_uint32_t idx_size;
 159   grub_uint32_t spc;
 160   grub_uint32_t mft_start;
 161   grub_uint64_t uuid;
 162 };
 163
 164 struct grub_ntfs_comp_table_element
 165 {
 166   grub_uint32_t next_vcn;
 167   grub_uint32_t next_lcn;
 168 };
 169
 170 struct grub_ntfs_comp
 171 {
 172   grub_disk_t disk;
 173   int comp_head, comp_tail;
 174   struct grub_ntfs_comp_table_element comp_table[16];
 175   grub_uint32_t cbuf_ofs, cbuf_vcn, spc;
 176   char *cbuf;
 177 };
 178
 179 struct grub_ntfs_rlst
 180 {
 181   int flags;
 182   grub_disk_addr_t target_vcn, curr_vcn, next_vcn, curr_lcn;
 183   char *cur_run;
 184   struct grub_ntfs_attr *attr;
 185   struct grub_ntfs_comp comp;
 186 };
 187
 188 typedef grub_err_t (*grub_ntfscomp_func_t) (struct grub_ntfs_attr * at,
 189                                             char *dest,
 190                                             grub_disk_addr_t ofs,
 191                                             grub_size_t len,
 192                                             struct grub_ntfs_rlst * ctx,
 193                                             grub_disk_addr_t vcn);
 194
 195 extern grub_ntfscomp_func_t grub_ntfscomp_func;
 196
 197 grub_err_t grub_ntfs_read_run_list (struct grub_ntfs_rlst *ctx);
 198
 199 #endif /* ! GRUB_NTFS_H */