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261 lines
7.1 KiB
C
261 lines
7.1 KiB
C
/******************************************************************************
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* ventoy.h
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*
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* Copyright (c) 2020, longpanda <admin@ventoy.net>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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 this program; if not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef __VENTOY_H__
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#define __VENTOY_H__
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#define COMPILE_ASSERT(expr) extern char __compile_assert[(expr) ? 1 : -1]
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#define VENTOY_COMPATIBLE_STR "VENTOY COMPATIBLE"
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#define VENTOY_COMPATIBLE_STR_LEN 17
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#define VENTOY_GUID { 0x77772020, 0x2e77, 0x6576, { 0x6e, 0x74, 0x6f, 0x79, 0x2e, 0x6e, 0x65, 0x74 }}
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typedef enum ventoy_fs_type
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{
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ventoy_fs_exfat = 0, /* 0: exfat */
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ventoy_fs_ntfs, /* 1: NTFS */
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ventoy_fs_ext, /* 2: ext2/ext3/ext4 */
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ventoy_fs_xfs, /* 3: XFS */
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ventoy_fs_udf, /* 4: UDF */
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ventoy_fs_fat, /* 5: FAT */
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ventoy_fs_max
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}ventoy_fs_type;
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typedef enum ventoy_chain_type
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{
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ventoy_chain_linux = 0, /* 0: linux */
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ventoy_chain_windows, /* 1: windows */
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ventoy_chain_wim, /* 2: wim */
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ventoy_chain_max
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}ventoy_chain_type;
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#pragma pack(1)
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typedef struct ventoy_guid
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{
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grub_uint32_t data1;
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grub_uint16_t data2;
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grub_uint16_t data3;
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grub_uint8_t data4[8];
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}ventoy_guid;
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typedef struct ventoy_image_disk_region
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{
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grub_uint32_t image_sector_count; /* image sectors contained in this region (in 2048) */
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grub_uint32_t image_start_sector; /* image sector start (in 2048) */
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grub_uint64_t disk_start_sector; /* disk sector start (in 512) */
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}ventoy_image_disk_region;
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typedef struct ventoy_image_location
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{
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ventoy_guid guid;
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/* image sector size, currently this value is always 2048 */
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grub_uint32_t image_sector_size;
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/* disk sector size, normally the value is 512 */
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grub_uint32_t disk_sector_size;
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grub_uint32_t region_count;
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/*
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* disk region data (region_count)
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* If the image file has more than one fragments in disk,
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* there will be more than one region data here.
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*
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*/
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ventoy_image_disk_region regions[1];
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/* ventoy_image_disk_region regions[2~region_count-1] */
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}ventoy_image_location;
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typedef struct ventoy_os_param
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{
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ventoy_guid guid; // VENTOY_GUID
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grub_uint8_t chksum; // checksum
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grub_uint8_t vtoy_disk_guid[16];
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grub_uint64_t vtoy_disk_size; // disk size in bytes
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grub_uint16_t vtoy_disk_part_id; // begin with 1
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grub_uint16_t vtoy_disk_part_type; // 0:exfat 1:ntfs other: reserved
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char vtoy_img_path[384]; // It seems to be enough, utf-8 format
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grub_uint64_t vtoy_img_size; // image file size in bytes
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/*
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* Ventoy will write a copy of ventoy_image_location data into runtime memory
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* this is the physically address and length of that memory.
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* Address 0 means no such data exist.
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* Address will be aligned by 4KB.
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*
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*/
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grub_uint64_t vtoy_img_location_addr;
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grub_uint32_t vtoy_img_location_len;
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/*
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* These 32 bytes are reserved by ventoy.
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*
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* vtoy_reserved[0]: vtoy_break_level
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* vtoy_reserved[1]: vtoy_debug_level
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* vtoy_reserved[2]: vtoy_chain_type 0:Linux 1:Windows 2:wimfile
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* vtoy_reserved[3]: vtoy_iso_format 0:iso9660 1:udf
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* vtoy_reserved[4]: vtoy_windows_cd_prompt
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*
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*/
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grub_uint8_t vtoy_reserved[32]; // Internal use by ventoy
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grub_uint8_t reserved[31];
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}ventoy_os_param;
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typedef struct ventoy_windows_data
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{
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char auto_install_script[384];
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char injection_archive[384];
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grub_uint8_t reserved[256];
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}ventoy_windows_data;
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#pragma pack()
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// compile assert check : sizeof(ventoy_os_param) must be 512
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COMPILE_ASSERT(sizeof(ventoy_os_param) == 512);
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#pragma pack(4)
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typedef struct ventoy_chain_head
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{
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ventoy_os_param os_param;
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grub_uint32_t disk_drive;
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grub_uint32_t drive_map;
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grub_uint32_t disk_sector_size;
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grub_uint64_t real_img_size_in_bytes;
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grub_uint64_t virt_img_size_in_bytes;
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grub_uint32_t boot_catalog;
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grub_uint8_t boot_catalog_sector[2048];
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grub_uint32_t img_chunk_offset;
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grub_uint32_t img_chunk_num;
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grub_uint32_t override_chunk_offset;
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grub_uint32_t override_chunk_num;
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grub_uint32_t virt_chunk_offset;
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grub_uint32_t virt_chunk_num;
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}ventoy_chain_head;
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typedef struct ventoy_img_chunk
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{
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grub_uint32_t img_start_sector; // sector size: 2KB
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grub_uint32_t img_end_sector; // included
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grub_uint64_t disk_start_sector; // in disk_sector_size
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grub_uint64_t disk_end_sector; // included
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}ventoy_img_chunk;
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typedef struct ventoy_override_chunk
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{
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grub_uint64_t img_offset;
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grub_uint32_t override_size;
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grub_uint8_t override_data[512];
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}ventoy_override_chunk;
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typedef struct ventoy_virt_chunk
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{
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grub_uint32_t mem_sector_start;
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grub_uint32_t mem_sector_end;
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grub_uint32_t mem_sector_offset;
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grub_uint32_t remap_sector_start;
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grub_uint32_t remap_sector_end;
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grub_uint32_t org_sector_start;
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}ventoy_virt_chunk;
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#define DEFAULT_CHUNK_NUM 1024
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typedef struct ventoy_img_chunk_list
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{
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grub_uint32_t max_chunk;
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grub_uint32_t cur_chunk;
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ventoy_img_chunk *chunk;
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}ventoy_img_chunk_list;
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#pragma pack()
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#define ventoy_filt_register grub_file_filter_register
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#pragma pack(1)
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#define GRUB_FILE_REPLACE_MAGIC 0x1258BEEF
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typedef const char * (*grub_env_get_pf)(const char *name);
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typedef int (*grub_env_set_pf)(const char *name, const char *val);
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typedef int (*grub_env_printf_pf)(const char *fmt, ...);
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typedef struct ventoy_grub_param_file_replace
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{
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grub_uint32_t magic;
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char old_file_name[4][256];
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grub_uint32_t old_name_cnt;
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grub_uint32_t new_file_virtual_id;
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}ventoy_grub_param_file_replace;
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typedef struct ventoy_grub_param
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{
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grub_env_get_pf grub_env_get;
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grub_env_set_pf grub_env_set;
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ventoy_grub_param_file_replace file_replace;
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grub_env_printf_pf grub_env_printf;
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}ventoy_grub_param;
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#pragma pack()
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int grub_ext_get_file_chunk(grub_uint64_t part_start, grub_file_t file, ventoy_img_chunk_list *chunk_list);
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int grub_fat_get_file_chunk(grub_uint64_t part_start, grub_file_t file, ventoy_img_chunk_list *chunk_list);
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void grub_iso9660_set_nojoliet(int nojoliet);
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grub_uint64_t grub_iso9660_get_last_read_pos(grub_file_t file);
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grub_uint64_t grub_iso9660_get_last_file_dirent_pos(grub_file_t file);
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grub_uint64_t grub_udf_get_file_offset(grub_file_t file);
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grub_uint64_t grub_udf_get_last_pd_size_offset(void);
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grub_uint64_t grub_udf_get_last_file_attr_offset
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(
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grub_file_t file,
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grub_uint32_t *startBlock,
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grub_uint64_t *fe_entry_size_offset
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);
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int ventoy_is_efi_os(void);
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#endif /* __VENTOY_H__ */
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