GRUB2/MOD_SRC/grub-2.04/include/grub/ventoy.h

   1 /******************************************************************************
   2  * ventoy.h
   3  *
   4  * Copyright (c) 2020, longpanda <admin@ventoy.net>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 3 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  *
  19  */
  20
  21 #ifndef __VENTOY_H__
  22 #define __VENTOY_H__
  23
  24 #define COMPILE_ASSERT(a, expr)  extern char __compile_assert##a[(expr) ? 1 : -1]
  25
  26 #define VENTOY_COMPATIBLE_STR      "VENTOY COMPATIBLE"
  27 #define VENTOY_COMPATIBLE_STR_LEN  17
  28
  29 #define VENTOY_GUID { 0x77772020, 0x2e77, 0x6576, { 0x6e, 0x74, 0x6f, 0x79, 0x2e, 0x6e, 0x65, 0x74 }}
  30
  31 typedef enum ventoy_fs_type
  32 {
  33     ventoy_fs_exfat = 0, /* 0: exfat */
  34     ventoy_fs_ntfs,      /* 1: NTFS */
  35     ventoy_fs_ext,       /* 2: ext2/ext3/ext4 */
  36     ventoy_fs_xfs,       /* 3: XFS */
  37     ventoy_fs_udf,       /* 4: UDF */
  38     ventoy_fs_fat,       /* 5: FAT */
  39
  40     ventoy_fs_max
  41 }ventoy_fs_type;
  42
  43 typedef enum ventoy_chain_type
  44 {
  45     ventoy_chain_linux = 0, /* 0: linux */
  46     ventoy_chain_windows,   /* 1: windows */
  47     ventoy_chain_wim,       /* 2: wim */
  48
  49     ventoy_chain_max
  50 }ventoy_chain_type;
  51
  52 #pragma pack(1)
  53
  54 typedef struct ventoy_guid
  55 {
  56     grub_uint32_t   data1;
  57     grub_uint16_t   data2;
  58     grub_uint16_t   data3;
  59     grub_uint8_t    data4[8];
  60 }ventoy_guid;
  61
  62
  63 typedef struct ventoy_image_disk_region
  64 {
  65     grub_uint32_t   image_sector_count; /* image sectors contained in this region (in 2048) */
  66     grub_uint32_t   image_start_sector; /* image sector start (in 2048) */
  67     grub_uint64_t   disk_start_sector;  /* disk sector start (in 512) */
  68 }ventoy_image_disk_region;
  69
  70 typedef struct ventoy_image_location
  71 {
  72     ventoy_guid  guid;
  73
  74     /* image sector size, 2048/512 */
  75     grub_uint32_t   image_sector_size;
  76
  77     /* disk sector size, normally the value is 512 */
  78     grub_uint32_t   disk_sector_size;
  79
  80     grub_uint32_t   region_count;
  81
  82     /*
  83      * disk region data (region_count)
  84      * If the image file has more than one fragments in disk,
  85      * there will be more than one region data here.
  86      *
  87      */
  88     ventoy_image_disk_region regions[1];
  89
  90     /* ventoy_image_disk_region regions[2~region_count-1] */
  91 }ventoy_image_location;
  92
  93
  94 typedef struct ventoy_os_param
  95 {
  96     ventoy_guid    guid;                  // VENTOY_GUID
  97     grub_uint8_t   chksum;                // checksum
  98
  99     grub_uint8_t   vtoy_disk_guid[16];
 100     grub_uint64_t  vtoy_disk_size;       // disk size in bytes
 101     grub_uint16_t  vtoy_disk_part_id;    // begin with 1
 102     grub_uint16_t  vtoy_disk_part_type;  // 0:exfat   1:ntfs  other: reserved
 103     char           vtoy_img_path[384];   // It seems to be enough, utf-8 format
 104     grub_uint64_t  vtoy_img_size;        // image file size in bytes
 105
 106     /*
 107      * Ventoy will write a copy of ventoy_image_location data into runtime memory
 108      * this is the physically address and length of that memory.
 109      * Address 0 means no such data exist.
 110      * Address will be aligned by 4KB.
 111      *
 112      */
 113     grub_uint64_t  vtoy_img_location_addr;
 114     grub_uint32_t  vtoy_img_location_len;
 115
 116     /*
 117      * These 32 bytes are reserved by ventoy.
 118      *
 119      * vtoy_reserved[0]: vtoy_break_level
 120      * vtoy_reserved[1]: vtoy_debug_level
 121      * vtoy_reserved[2]: vtoy_chain_type     0:Linux    1:Windows  2:wimfile
 122      * vtoy_reserved[3]: vtoy_iso_format     0:iso9660  1:udf
 123      * vtoy_reserved[4]: vtoy_windows_cd_prompt
 124      *
 125      */
 126     grub_uint8_t   vtoy_reserved[32];    // Internal use by ventoy
 127
 128     grub_uint8_t   vtoy_disk_signature[4];
 129
 130     grub_uint8_t   reserved[27];
 131 }ventoy_os_param;
 132
 133
 134 typedef struct ventoy_windows_data
 135 {
 136     char auto_install_script[384];
 137     char injection_archive[384];
 138     grub_uint8_t reserved[256];
 139 }ventoy_windows_data;
 140
 141
 142 typedef struct ventoy_secure_data
 143 {
 144     grub_uint8_t magic1[16];     /* VENTOY_GUID */
 145     grub_uint8_t diskuuid[16];
 146     grub_uint8_t Checksum[16];
 147     grub_uint8_t adminSHA256[32];
 148     grub_uint8_t reserved[4000];
 149     grub_uint8_t magic2[16];     /* VENTOY_GUID */
 150 }ventoy_secure_data;
 151
 152 #pragma pack()
 153
 154 // compile assert check : sizeof(ventoy_os_param) must be 512
 155 COMPILE_ASSERT(1,sizeof(ventoy_os_param) == 512);
 156 COMPILE_ASSERT(2,sizeof(ventoy_secure_data) == 4096);
 157
 158
 159
 160
 161
 162
 163
 164 #pragma pack(4)
 165
 166 typedef struct ventoy_chain_head
 167 {
 168     ventoy_os_param os_param;
 169
 170     grub_uint32_t disk_drive;
 171     grub_uint32_t drive_map;
 172     grub_uint32_t disk_sector_size;
 173
 174     grub_uint64_t real_img_size_in_bytes;
 175     grub_uint64_t virt_img_size_in_bytes;
 176     grub_uint32_t boot_catalog;
 177     grub_uint8_t  boot_catalog_sector[2048];
 178
 179     grub_uint32_t img_chunk_offset;
 180     grub_uint32_t img_chunk_num;
 181
 182     grub_uint32_t override_chunk_offset;
 183     grub_uint32_t override_chunk_num;
 184
 185     grub_uint32_t virt_chunk_offset;
 186     grub_uint32_t virt_chunk_num;
 187 }ventoy_chain_head;
 188
 189 typedef struct ventoy_image_desc
 190 {
 191     grub_uint64_t disk_size;
 192     grub_uint64_t part1_size;
 193     grub_uint8_t  disk_uuid[16];
 194     grub_uint8_t  disk_signature[4];
 195     grub_uint32_t img_chunk_count;
 196     /* ventoy_img_chunk list */
 197 }ventoy_image_desc;
 198
 199
 200
 201 typedef struct ventoy_img_chunk
 202 {
 203     grub_uint32_t img_start_sector; // sector size: 2KB
 204     grub_uint32_t img_end_sector;   // included
 205
 206     grub_uint64_t disk_start_sector; // in disk_sector_size
 207     grub_uint64_t disk_end_sector;   // included
 208 }ventoy_img_chunk;
 209
 210
 211 typedef struct ventoy_override_chunk
 212 {
 213     grub_uint64_t img_offset;
 214     grub_uint32_t override_size;
 215     grub_uint8_t  override_data[512];
 216 }ventoy_override_chunk;
 217
 218 typedef struct ventoy_virt_chunk
 219 {
 220     grub_uint32_t mem_sector_start;
 221     grub_uint32_t mem_sector_end;
 222     grub_uint32_t mem_sector_offset;
 223     grub_uint32_t remap_sector_start;
 224     grub_uint32_t remap_sector_end;
 225     grub_uint32_t org_sector_start;
 226 }ventoy_virt_chunk;
 227
 228 #define DEFAULT_CHUNK_NUM   1024
 229 typedef struct ventoy_img_chunk_list
 230 {
 231     grub_uint32_t max_chunk;
 232     grub_uint32_t cur_chunk;
 233     ventoy_img_chunk *chunk;
 234 }ventoy_img_chunk_list;
 235
 236
 237 #pragma pack()
 238
 239 #define ventoy_filt_register grub_file_filter_register
 240
 241 #pragma pack(1)
 242
 243 #define GRUB_FILE_REPLACE_MAGIC  0x1258BEEF
 244
 245 typedef const char * (*grub_env_get_pf)(const char *name);
 246 typedef int (*grub_env_set_pf)(const char *name, const char *val);
 247 typedef int (*grub_env_printf_pf)(const char *fmt, ...);
 248
 249 typedef struct ventoy_grub_param_file_replace
 250 {
 251     grub_uint32_t magic;
 252     char old_file_name[4][256];
 253     grub_uint32_t old_name_cnt;
 254     grub_uint32_t new_file_virtual_id;
 255 }ventoy_grub_param_file_replace;
 256
 257 typedef struct ventoy_grub_param
 258 {
 259     grub_env_get_pf grub_env_get;
 260     grub_env_set_pf grub_env_set;
 261     ventoy_grub_param_file_replace file_replace;
 262     grub_env_printf_pf grub_env_printf;
 263 }ventoy_grub_param;
 264
 265 #pragma pack()
 266
 267 int grub_ext_get_file_chunk(grub_uint64_t part_start, grub_file_t file, ventoy_img_chunk_list *chunk_list);
 268 int grub_fat_get_file_chunk(grub_uint64_t part_start, grub_file_t file, ventoy_img_chunk_list *chunk_list);
 269 void grub_iso9660_set_nojoliet(int nojoliet);
 270 grub_uint64_t grub_iso9660_get_last_read_pos(grub_file_t file);
 271 grub_uint64_t grub_iso9660_get_last_file_dirent_pos(grub_file_t file);
 272 grub_uint64_t grub_udf_get_file_offset(grub_file_t file);
 273 grub_uint64_t grub_udf_get_last_pd_size_offset(void);
 274 grub_uint64_t grub_udf_get_last_file_attr_offset
 275 (
 276     grub_file_t file,
 277     grub_uint32_t *startBlock,
 278     grub_uint64_t *fe_entry_size_offset
 279 );
 280 int ventoy_is_efi_os(void);
 281
 282 #endif /* __VENTOY_H__ */
 283