/*

* The C code for a grub4dos executable may have defines as follows:

* 用于编写外部命令的函数定义。

*/

#ifndef GRUB4DOS_2010_03_01

#define GRUB4DOS_2010_03_01

int grub_main (char *arg,int flags);

#undef NULL

#define NULL         ((void *) 0)

/* Error codes (descriptions are in common.c) */

typedef enum

{

  ERR_NONE = 0,

  ERR_BAD_FILENAME,

  ERR_BAD_FILETYPE,

  ERR_BAD_GZIP_DATA,

  ERR_BAD_GZIP_HEADER,

  ERR_BAD_PART_TABLE,

  ERR_BAD_VERSION,

  ERR_BELOW_1MB,

  ERR_BOOT_COMMAND,

  ERR_BOOT_FAILURE,

  ERR_BOOT_FEATURES,

  ERR_DEV_FORMAT,

  ERR_DEV_VALUES,

  ERR_EXEC_FORMAT,

  ERR_FILELENGTH,

  ERR_FILE_NOT_FOUND,

  ERR_FSYS_CORRUPT,

  ERR_FSYS_MOUNT,

  ERR_GEOM,

  ERR_NEED_LX_KERNEL,

  ERR_NEED_MB_KERNEL,

  ERR_NO_DISK,

  ERR_NO_PART,

  ERR_NUMBER_PARSING,

  ERR_OUTSIDE_PART,

  ERR_READ,

  ERR_SYMLINK_LOOP,

  ERR_UNRECOGNIZED,

  ERR_WONT_FIT,

  ERR_WRITE,

  ERR_BAD_ARGUMENT,

  ERR_UNALIGNED,

  ERR_PRIVILEGED,

  ERR_DEV_NEED_INIT,

  ERR_NO_DISK_SPACE,

  ERR_NUMBER_OVERFLOW,

  ERR_DEFAULT_FILE,

  ERR_DEL_MEM_DRIVE,

  ERR_DISABLE_A20,

  ERR_DOS_BACKUP,

  ERR_ENABLE_A20,

  ERR_EXTENDED_PARTITION,

  ERR_FILENAME_FORMAT,

  ERR_HD_VOL_START_0,

  ERR_INT13_ON_HOOK,

  ERR_INT13_OFF_HOOK,

  ERR_INVALID_BOOT_CS,

  ERR_INVALID_BOOT_IP,

  ERR_INVALID_FLOPPIES,

  ERR_INVALID_HARDDRIVES,

  ERR_INVALID_HEADS,

  ERR_INVALID_LOAD_LENGTH,

  ERR_INVALID_LOAD_OFFSET,

  ERR_INVALID_LOAD_SEGMENT,

  ERR_INVALID_SECTORS,

  ERR_INVALID_SKIP_LENGTH,

  ERR_INVALID_RAM_DRIVE,

  ERR_IN_SITU_FLOPPY,

  ERR_IN_SITU_MEM,

  ERR_MD_BASE,

  ERR_NON_CONTIGUOUS,

  ERR_NO_DRIVE_MAPPED,

  ERR_NO_HEADS,

  ERR_NO_SECTORS,

  ERR_PARTITION_TABLE_FULL,

  ERR_RD_BASE,

  ERR_SPECIFY_GEOM,

  ERR_SPECIFY_MEM,

  ERR_SPECIFY_RESTRICTION,

//  ERR_INVALID_RD_BASE,

//  ERR_INVALID_RD_SIZE,

  ERR_MD5_FORMAT,

  ERR_WRITE_GZIP_FILE,

  ERR_FUNC_CALL,

//  ERR_WRITE_TO_NON_MEM_DRIVE,

  ERR_INTERNAL_CHECK,

  MAX_ERR_NUM

} grub_error_t;

#define install_partition (*(unsigned long *)0×8208)

#define boot_drive (*(unsigned long *)0×8280)

#define pxe_yip (*(unsigned long *)0×8284)

#define pxe_sip (*(unsigned long *)0×8288)

#define pxe_gip (*(unsigned long *)0x828C)

#define filesize (*(unsigned long long *)0×8290)

#define saved_mem_upper (*(unsigned long *)0×8298)

#define saved_partition (*(unsigned long *)0x829C)

#define saved_drive (*(unsigned long *)0x82A0)

#define no_decompression (*(unsigned long *)0x82A4)

#define part_start (*(unsigned long long *)0x82A8)

#define part_length (*(unsigned long long *)0x82B0)

#define fb_status (*(unsigned long *)0x82B8)

#define is64bit (*(unsigned long *)0x82BC)

#define saved_mem_higher (*(unsigned long long *)0x82C0)

#define cdrom_drive (*(unsigned long *)0x82C8)

#define ram_drive (*(unsigned long *)0x82CC)

#define rd_base (*(unsigned long long *)0x82D0)

#define rd_size (*(unsigned long long *)0x82D8)

#define addr_system_functions (*(unsigned long *)0×8300)

#define next_partition_drive        ((*(unsigned long **)0×8304)[0])

#define next_partition_dest        ((*(unsigned long **)0×8304)[1])

#define next_partition_partition    ((*(unsigned long ***)0×8304)[2])

#define next_partition_type        ((*(unsigned long ***)0×8304)[3])

#define next_partition_start        ((*(unsigned long ***)0×8304)[4])

#define next_partition_len        ((*(unsigned long ***)0×8304)[5])

#define next_partition_offset        ((*(unsigned long ***)0×8304)[6])

#define next_partition_entry        ((*(unsigned long ***)0×8304)[7])

#define next_partition_ext_offset    ((*(unsigned long ***)0×8304)[8])

#define next_partition_buf        ((*(char ***)0×8304)[9])

#define quit_print        ((*(int **)0×8304)[10])

//#define buf_drive    ((*(int **)0×8304)[11])

//#define buf_track    ((*(int **)0×8304)[12])

#define filesystem_type ((*(int **)0×8304)[13])

//#define query_block_entries ((*(long **)0×8304)[14])

//#define map_start_sector ((*(unsigned long **)0×8304)[15])

#define buf_geom ((*(struct geometry ***)0×8304)[16])

#define tmp_geom ((*(struct geometry ***)0×8304)[17])

#define term_table ((*(struct term_entry ***)0×8304)[18])

#define current_term ((*(struct term_entry ***)0×8304)[19])

#define fsys_table ((*(struct fsys_entry ***)0×8304)[20])

//#define fsys_type ((*(int **)0×8304)[21])

//#define NUM_FSYS ((*(const int **)0×8304)[22])

#define graphics_inited ((*(const int **)0×8304)[23])

#define VARIABLE_GRAPHICS ((char *)(*(int ***)0×8304)[24])

#define font8x16 ((unsigned char *)(*(int ***)0×8304)[25])

#define fontx ((*(int **)0×8304)[26])

#define fonty ((*(int **)0×8304)[27])

#define graphics_CURSOR ((*(int **)0×8304)[28])

#define menu_broder ((*(struct broder ***)0×8304)[29])

#define cursorX (*(short *)(VARIABLE_GRAPHICS))

#define cursorY (*(short *)(VARIABLE_GRAPHICS + 2))

#define cursorBuf ((char *)(VARIABLE_GRAPHICS + 6))

#define free_mem_start (*(unsigned long *)0x82F0)

#define free_mem_end (*(unsigned long *)0x82F4)

#define saved_mmap_addr (*(unsigned long *)0x82F8)

#define saved_mmap_length (*(unsigned long *)0x82FB)

#define DRIVE_MAP_SIZE    8

#define PXE_DRIVE        0×21

#define INITRD_DRIVE    0×22

#define FB_DRIVE        0×23

#define SECTOR_SIZE        0×200

#define SECTOR_BITS        9

#define BIOSDISK_FLAG_BIFURCATE        0×4

#define MB_ARD_MEMORY    1

#define MB_INFO_MEM_MAP    0×00000040

#define errnum (*(grub_error_t *)0×8314)

#define current_drive (*(unsigned long *)0×8318)

#define current_partition (*(unsigned long *)0x831C)

#define filemax (*(unsigned long long *)0×8320)

#define filepos (*(unsigned long long *)0×8328)

#define debug (*(int *)0×8330)

#define current_slice (*(unsigned long *)0×8334)

#define GRUB_READ 0xedde0d90

#define GRUB_WRITE 0x900ddeed

#define sprintf ((int (*)(char *, const char *, …))((*(int **)0×8300)[0]))

#define printf(…) sprintf(NULL, __VA_ARGS__)

#define putstr ((void (*)(const char *))((*(int **)0×8300)[1]))

#define putchar ((void (*)(int))((*(int **)0×8300)[2]))

#define get_cmdline ((int (*)(struct get_cmdline_arg))((*(int **)0×8300)[3]))

#define getxy ((int (*)(void))((*(int **)0×8300)[4]))

#define gotoxy ((void (*)(int, int))((*(int **)0×8300)[5]))

#define cls ((void (*)(void))((*(int **)0×8300)[6]))

#define setcursor ((int (*)(int))((*(int **)0×8300)[7]))

#define nul_terminate ((int (*)(char *))((*(int **)0×8300)[8]))

#define safe_parse_maxint_with_suffix ((int (*)(char **str_ptr, unsigned long long *myint_ptr, int unitshift))((*(int **)0×8300)[9]))

#define safe_parse_maxint(str_ptr, myint_ptr) safe_parse_maxint_with_suffix(str_ptr, myint_ptr, 0)

#define substring ((int (*)(const char *s1, const char *s2, int case_insensitive))((*(int **)0×8300)[10]))

#define strstr ((char *(*)(const char *s1, const char *s2))((*(int **)0×8300)[11]))

#define strlen ((int (*)(const char *str))((*(int **)0×8300)[12]))

#define strtok ((char *(*)(char *s, const char *delim))((*(int **)0×8300)[13]))

#define strncat ((int (*)(char *s1, const char *s2, int n))((*(int **)0×8300)[14]))

#define strcmp ((int (*)(const char *s1, const char *s2))((*(int **)0×8300)[15]))

#define strcpy ((char *(*)(char *dest, const char *src))((*(int **)0×8300)[16]))

#define tolower ((int (*)(int))((*(int **)0×8300)[17]))

#define isspace ((int (*)(int))((*(int **)0×8300)[18]))

#define getkey ((int (*)(void))((*(int **)0×8300)[19]))

#define checkkey ((int (*)(void))((*(int **)0×8300)[20]))

#define sleep ((unsigned int (*)(unsigned int))((*(int **)0×8300)[21]))

#define memcmp ((int (*)(const char *s1, const char *s2, int n))((*(int **)0×8300)[22]))

#define memmove ((void *(*)(void *to, const void *from, int len))((*(int **)0×8300)[23]))

#define memset ((void *(*)(void *start, int c, int len))((*(int **)0×8300)[24]))

#define mem64 ((int (*)(int, unsigned long long, unsigned long long, unsigned long long))((*(int **)0×8300)[25]))

#define open ((int (*)(char *))((*(int **)0×8300)[26]))

#define read ((unsigned long long (*)(unsigned long long, unsigned long long, unsigned long))((*(int **)0×8300)[27]))

#define close ((void (*)(void))((*(int **)0×8300)[28]))

#define unicode_to_utf8 ((void (*)(unsigned short *, unsigned char *, unsigned long))((*(int **)0×8300)[29]))

/*

int

rawread (unsigned long drive, unsigned long sector, unsigned long byte_offset, unsigned long byte_len, unsigned long long buf, unsigned long write)

*/

#define rawread ((int (*)(unsigned long, unsigned long, unsigned long, unsigned long long, unsigned long long, unsigned long))((*(int **)0×8300)[30]))

/*

int

rawwrite (unsigned long drive, unsigned long sector, char *buf)

*/

#define rawwrite ((int (*)(unsigned long, unsigned long, char *))((*(int **)0×8300)[31]))

/*

int

devread (unsigned long drive, unsigned long sector, unsigned long byte_offset, unsigned long long byte_len, unsigned long long buf, unsigned long write)

*/

#define devread ((int (*)(unsigned long sector, unsigned long byte_offset, unsigned long long byte_len, unsigned long long buf, unsigned long write))((*(int **)0×8300)[32]))

/*

* int

* devwrite (unsigned long sector, unsigned long sector_count, char *buf)

*/

#define devwrite ((int (*)(unsigned long, unsigned long, char *))((*(int **)0×8300)[33]))

#define next_partition ((int (*)(void))((*(int **)0×8300)[34]))

#define open_device ((int (*)(void))((*(int **)0×8300)[35]))

#define real_open_partition ((int (*)(int))((*(int **)0×8300)[36]))

#define set_device ((char *(*)(char *))((*(int **)0×8300)[37]))

#define dir ((int (*)(char *))((*(int **)0×8300)[38]))

#define print_a_completion ((void (*)(char *))((*(int **)0×8300)[39]))

#define print_completions ((int (*)(int, int))((*(int **)0×8300)[40]))

#define parse_string ((int (*)(char *))((*(int **)0×8300)[41]))

#define hexdump ((void (*)(unsigned long, char *, int))((*(int **)0×8300)[42]))

#define skip_to ((char *(*)(int after_equal, char *cmdline))((*(int **)0×8300)[43]))

#define builtin_cmd ((int (*)(char *cmd, char *arg, int flags))((*(int **)0×8300)[44]))

#define get_datetime ((void (*)(unsigned long *date, unsigned long *time))((*(int **)0×8300)[45]))

#define lba_to_chs ((void (*)(unsigned long lba, unsigned long *cl, unsigned long *ch, unsigned long *dh))((*(int **)0×8300)[46]))

#define probe_bpb ((int (*)(struct master_and_dos_boot_sector *BS))((*(int **)0×8300)[47]))

#define probe_mbr ((int (*)(struct master_and_dos_boot_sector *BS, unsigned long start_sector1, unsigned long sector_count1, unsigned long part_start1))((*(int **)0×8300)[48]))

#define graphics_get_font ((unsigned char *(*)(void))((*(int **)0×8300)[51]))

#define RAW_ADDR(x) (x)

#define SCRATCHADDR  RAW_ADDR (0x37e00)

#define MBR ((char *)0×8000)

//#define grub_memcmp memcmp

struct get_cmdline_arg

{

    char *cmdline;

    char *prompt;

    int maxlen;

    int echo_char;

    int readline;

} __attribute__ ((packed));

struct geometry

{

  /* The number of cylinders */

  unsigned long cylinders;

  /* The number of heads */

  unsigned long heads;

  /* The number of sectors */

  unsigned long sectors;

  /* The total number of sectors */

  unsigned long long total_sectors;

  /* Device sector size */

  unsigned long sector_size;

  /* Flags */

  unsigned long flags;

};

/* fsys.h */

struct fsys_entry

{

  char *name;

  int (*mount_func) (void);

  unsigned long (*read_func) (unsigned long long buf, unsigned long long len, unsigned long write);

  int (*dir_func) (char *dirname);

  void (*close_func) (void);

  unsigned long (*embed_func) (unsigned long *start_sector, unsigned long needed_sectors);

};

/* fsys.h */

/* shared.h */

struct master_and_dos_boot_sector {

/* 00 */ char dummy1[0x0b]; /* at offset 0, normally there is a short JMP instuction(opcode is 0xEB) */

/* 0B */ unsigned short bytes_per_sector __attribute__ ((packed));/* seems always to be 512, so we just use 512 */

/* 0D */ unsigned char sectors_per_cluster;/* non-zero, the power of 2, i.e., 2^n */

/* 0E */ unsigned short reserved_sectors __attribute__ ((packed));/* FAT=non-zero, NTFS=0? */

/* 10 */ unsigned char number_of_fats;/* NTFS=0; FAT=1 or 2  */

/* 11 */ unsigned short root_dir_entries __attribute__ ((packed));/* FAT32=0, NTFS=0, FAT12/16=non-zero */

/* 13 */ unsigned short total_sectors_short __attribute__ ((packed));/* FAT32=0, NTFS=0, FAT12/16=any */

/* 15 */ unsigned char media_descriptor;/* range from 0xf0 to 0xff */

/* 16 */ unsigned short sectors_per_fat __attribute__ ((packed));/* FAT32=0, NTFS=0, FAT12/16=non-zero */

/* 18 */ unsigned short sectors_per_track __attribute__ ((packed));/* range from 1 to 63 */

/* 1A */ unsigned short total_heads __attribute__ ((packed));/* range from 1 to 256 */

/* 1C */ unsigned long hidden_sectors __attribute__ ((packed));/* any value */

/* 20 */ unsigned long total_sectors_long __attribute__ ((packed));/* FAT32=non-zero, NTFS=0, FAT12/16=any */

/* 24 */ unsigned long sectors_per_fat32 __attribute__ ((packed));/* FAT32=non-zero, NTFS=any, FAT12/16=any */

/* 28 */ unsigned long long total_sectors_long_long __attribute__ ((packed));/* NTFS=non-zero, FAT12/16/32=any */

/* 30 */ char dummy2[0x18e];

    /* Partition Table, starting at offset 0x1BE */

/* 1BE */ struct {

    /* +00 */ unsigned char boot_indicator;

    /* +01 */ unsigned char start_head;

    /* +02 */ unsigned short start_sector_cylinder __attribute__ ((packed));

    /* +04 */ unsigned char system_indicator;

    /* +05 */ unsigned char end_head;

    /* +06 */ unsigned short end_sector_cylinder __attribute__ ((packed));

    /* +08 */ unsigned long start_lba __attribute__ ((packed));

    /* +0C */ unsigned long total_sectors __attribute__ ((packed));

    /* +10 */

    } P[4];

/* 1FE */ unsigned short boot_signature __attribute__ ((packed));/* 0xAA55 */

#if 0

     /* This starts at offset 0×200 */

/* 200 */ unsigned long probed_total_sectors __attribute__ ((packed));

/* 204 */ unsigned long probed_heads __attribute__ ((packed));

/* 208 */ unsigned long probed_sectors_per_track __attribute__ ((packed));

/* 20C */ unsigned long probed_cylinders __attribute__ ((packed));

/* 210 */ unsigned long sectors_per_cylinder __attribute__ ((packed));

/* 214 */ char dummy3[0x0c] __attribute__ ((packed));

    /* matrix of coefficients of linear equations

     *

     *   C[n] * (H_count * S_count) + H[n] * S_count = LBA[n] – S[n] + 1

     *

     * where n = 1, 2, 3, 4, 5, 6, 7, 8

     */

     /* This starts at offset 0×130 */

/* 220 */ long long L[9] __attribute__ ((packed)); /* L[n] == LBA[n] – S[n] + 1 */

/* 268 */ long H[9] __attribute__ ((packed));

/* 28C */ short C[9] __attribute__ ((packed));

/* 29E */ short X __attribute__ ((packed));

/* 2A0 */ short Y __attribute__ ((packed));

/* 2A2 */ short Cmax __attribute__ ((packed));

/* 2A4 */ long Hmax __attribute__ ((packed));

/* 2A8 */ unsigned long Z __attribute__ ((packed));

/* 2AC */ short Smax __attribute__ ((packed));

/* 2AE */

#endif

  };

struct drive_map_slot

{

    /* Remember to update DRIVE_MAP_SLOT_SIZE once this is modified.

     * The struct size must be a multiple of 4.

     */

      /* X=max_sector bit 7: read only or fake write */

      /* Y=to_sector  bit 6: safe boot or fake write */

      /* ——————————————- */

      /* X Y: meaning of restrictions imposed on map */

      /* ——————————————- */

      /* 1 1: read only=0, fake write=1, safe boot=0 */

      /* 1 0: read only=1, fake write=0, safe boot=0 */

      /* 0 1: read only=0, fake write=0, safe boot=1 */

      /* 0 0: read only=0, fake write=0, safe boot=0 */

    unsigned char from_drive;

    unsigned char to_drive;        /* 0xFF indicates a memdrive */

    unsigned char max_head;

    unsigned char max_sector;    /* bit 7: read only */

                    /* bit 6: disable lba */

    unsigned short to_cylinder;    /* max cylinder of the TO drive */

                    /* bit 15:  TO  drive support LBA */

                    /* bit 14:  TO  drive is CDROM(with big 2048-byte sector) */

                    /* bit 13: FROM drive is CDROM(with big 2048-byte sector) */

    unsigned char to_head;        /* max head of the TO drive */

    unsigned char to_sector;    /* max sector of the TO drive */

                    /* bit 7: in-situ */

                    /* bit 6: fake-write or safe-boot */

    unsigned long long start_sector;

    //unsigned long start_sector_hi;    /* hi dword of the 64-bit value */

    unsigned long long sector_count;

    //unsigned long sector_count_hi;    /* hi dword of the 64-bit value */

};

/* shared.h */

typedef enum

{

    COLOR_STATE_STANDARD,

    /* represents the user defined colors for normal text */

    COLOR_STATE_NORMAL,

    /* represents the user defined colors for highlighted text */

    COLOR_STATE_HIGHLIGHT,

    /* represents the user defined colors for help text */

    COLOR_STATE_HELPTEXT,

    /* represents the user defined colors for heading line */

    COLOR_STATE_HEADING

} color_state;

struct term_entry

{

  /* The name of a terminal.  */

  const char *name;

  /* The feature flags defined above.  */

  unsigned long flags;

  /* Default for maximum number of lines if not specified */

  unsigned short max_lines;

  /* Put a character.  */

  void (*PUTCHAR) (int c);

  /* Check if any input character is available.  */

  int (*CHECKKEY) (void);

  /* Get a character.  */

  int (*GETKEY) (void);

  /* Get the cursor position. The return value is ((X << 8) | Y).  */

  int (*GETXY) (void);

  /* Go to the position (X, Y).  */

  void (*GOTOXY) (int x, int y);

  /* Clear the screen.  */

  void (*CLS) (void);

  /* Set the current color to be used */

  void (*SETCOLORSTATE) (color_state state);

  /* Set the normal color and the highlight color. The format of each

     color is VGA’s.  */

  void (*SETCOLOR) (int normal_color, int highlight_color, int helptext_color, int heading_color);

  /* Turn on/off the cursor.  */

  int (*SETCURSOR) (int on);

  /* function to start a terminal */

  int (*STARTUP) (void);

  /* function to use to shutdown a terminal */

  void (*SHUTDOWN) (void);

};

#endif