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This commit is contained in:
BVK Chaitanya 2010-09-04 14:41:08 +05:30
commit cd652829a1
61 changed files with 872 additions and 345 deletions
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2
include/grub/command.h
View file

@ -37,6 +37,8 @@
#define GRUB_COMMAND_FLAG_EXTCMD 0x10
/* This is an dynamic command. */
#define GRUB_COMMAND_FLAG_DYNCMD 0x20
/* This command accepts block arguments. */
#define GRUB_COMMAND_FLAG_BLOCKS 0x40
struct grub_command;

30
include/grub/extcmd.h
View file

@ -21,10 +21,12 @@
#include <grub/lib/arg.h>
#include <grub/command.h>
#include <grub/script_sh.h>
struct grub_extcmd;
struct grub_extcmd_context;
typedef grub_err_t (*grub_extcmd_func_t) (struct grub_extcmd *cmd,
typedef grub_err_t (*grub_extcmd_func_t) (struct grub_extcmd_context *ctxt,
int argc, char **args);
/* The argcmd description. */
@ -38,11 +40,21 @@ struct grub_extcmd
const struct grub_arg_option *options;
void *data;
struct grub_arg_list *state;
};
typedef struct grub_extcmd *grub_extcmd_t;
/* Command context for each instance of execution. */
struct grub_extcmd_context
{
struct grub_extcmd *extcmd;
struct grub_arg_list *state;
/* Script parameter, if any. */
struct grub_script *script;
};
typedef struct grub_extcmd_context *grub_extcmd_context_t;
grub_extcmd_t grub_register_extcmd (const char *name,
grub_extcmd_func_t func,
unsigned flags,
@ -50,6 +62,18 @@ grub_extcmd_t grub_register_extcmd (const char *name,
const char *description,
const struct grub_arg_option *parser);
grub_extcmd_t grub_register_extcmd_prio (const char *name,
grub_extcmd_func_t func,
unsigned flags,
const char *summary,
const char *description,
const struct grub_arg_option *parser,
int prio);
void grub_unregister_extcmd (grub_extcmd_t cmd);
grub_err_t
grub_extcmd_dispatcher (struct grub_command *cmd, int argc, char **args,
struct grub_script *script);
#endif /* ! GRUB_EXTCMD_HEADER */

35
include/grub/offsets.h
View file

@ -34,14 +34,17 @@
/* The offset of GRUB_INSTALL_BSD_PART. */
#define GRUB_KERNEL_I386_PC_INSTALL_BSD_PART 0x18
/* The offset of GRUB_PREFIX. */
#define GRUB_KERNEL_I386_PC_PREFIX 0x1c
/* End of the data section. */
#define GRUB_KERNEL_I386_PC_DATA_END 0x5c
/* The offset of multiboot signature. */
#define GRUB_KERNEL_I386_PC_MULTIBOOT_SIGNATURE 0x1c
/* The size of the first region which won't be compressed. */
#define GRUB_KERNEL_I386_PC_RAW_SIZE (GRUB_KERNEL_I386_PC_DATA_END + 0x5F0)
#define GRUB_KERNEL_I386_PC_RAW_SIZE 0x5D8
/* The offset of GRUB_PREFIX. */
#define GRUB_KERNEL_I386_PC_PREFIX GRUB_KERNEL_I386_PC_RAW_SIZE
/* End of the data section. */
#define GRUB_KERNEL_I386_PC_PREFIX_END (GRUB_KERNEL_I386_PC_PREFIX + 0x40)
/* The segment where the kernel is loaded. */
#define GRUB_BOOT_I386_PC_KERNEL_SEG 0x800
@ -65,7 +68,7 @@
#define GRUB_KERNEL_I386_QEMU_PREFIX 0x10
/* End of the data section. */
#define GRUB_KERNEL_I386_QEMU_DATA_END 0x50
#define GRUB_KERNEL_I386_QEMU_PREFIX_END 0x50
#define GRUB_KERNEL_I386_QEMU_LINK_ADDR 0x8200
@ -82,7 +85,7 @@
#define GRUB_KERNEL_SPARC64_IEEE1275_PREFIX 0x14
/* End of the data section. */
#define GRUB_KERNEL_SPARC64_IEEE1275_DATA_END 0x114
#define GRUB_KERNEL_SPARC64_IEEE1275_PREFIX_END 0x114
#define GRUB_BOOT_SPARC64_IEEE1275_LIST_SIZE 12
@ -91,7 +94,7 @@
#define GRUB_KERNEL_SPARC64_IEEE1275_LINK_ADDR 0x4400
#define GRUB_KERNEL_POWERPC_IEEE1275_PREFIX 0x4
#define GRUB_KERNEL_POWERPC_IEEE1275_DATA_END 0x44
#define GRUB_KERNEL_POWERPC_IEEE1275_PREFIX_END 0x44
#define GRUB_KERNEL_POWERPC_IEEE1275_LINK_ALIGN 4
#define GRUB_KERNEL_POWERPC_IEEE1275_LINK_ADDR 0x200000
@ -105,29 +108,29 @@
#define GRUB_KERNEL_MIPS_YEELOONG_KERNEL_IMAGE_SIZE 0x10
#define GRUB_KERNEL_MIPS_YEELOONG_PREFIX GRUB_KERNEL_MIPS_YEELOONG_RAW_SIZE
#define GRUB_KERNEL_MIPS_YEELOONG_DATA_END GRUB_KERNEL_MIPS_YEELOONG_RAW_SIZE + 0x48
#define GRUB_KERNEL_MIPS_YEELOONG_PREFIX_END GRUB_KERNEL_MIPS_YEELOONG_RAW_SIZE + 0x48
/* The offset of GRUB_PREFIX. */
#define GRUB_KERNEL_I386_EFI_PREFIX 0x8
/* End of the data section. */
#define GRUB_KERNEL_I386_EFI_DATA_END 0x50
#define GRUB_KERNEL_I386_EFI_PREFIX_END 0x50
/* The offset of GRUB_PREFIX. */
#define GRUB_KERNEL_X86_64_EFI_PREFIX 0x8
/* End of the data section. */
#define GRUB_KERNEL_X86_64_EFI_DATA_END 0x50
#define GRUB_KERNEL_X86_64_EFI_PREFIX_END 0x50
#define GRUB_KERNEL_I386_COREBOOT_PREFIX 0x2
#define GRUB_KERNEL_I386_COREBOOT_DATA_END 0x42
#define GRUB_KERNEL_I386_COREBOOT_PREFIX_END 0x42
#define GRUB_KERNEL_I386_COREBOOT_LINK_ADDR 0x8200
#define GRUB_KERNEL_I386_MULTIBOOT_PREFIX GRUB_KERNEL_I386_COREBOOT_PREFIX
#define GRUB_KERNEL_I386_MULTIBOOT_DATA_END GRUB_KERNEL_I386_COREBOOT_DATA_END
#define GRUB_KERNEL_I386_MULTIBOOT_PREFIX_END GRUB_KERNEL_I386_COREBOOT_PREFIX_END
#define GRUB_KERNEL_I386_IEEE1275_PREFIX 0x2
#define GRUB_KERNEL_I386_IEEE1275_DATA_END 0x42
#define GRUB_KERNEL_I386_IEEE1275_PREFIX_END 0x42
#define GRUB_KERNEL_I386_IEEE1275_LINK_ADDR 0x10000
#define GRUB_KERNEL_I386_IEEE1275_MOD_ALIGN 0x1000
@ -157,7 +160,7 @@
#define GRUB_KERNEL_MACHINE_COMPRESSED_SIZE GRUB_OFFSETS_CONCAT (GRUB_KERNEL_, MACHINE, _COMPRESSED_SIZE)
#define GRUB_KERNEL_MACHINE_PREFIX GRUB_OFFSETS_CONCAT (GRUB_KERNEL_, MACHINE, _PREFIX)
#define GRUB_KERNEL_MACHINE_DATA_END GRUB_OFFSETS_CONCAT (GRUB_KERNEL_, MACHINE, _DATA_END)
#define GRUB_KERNEL_MACHINE_PREFIX_END GRUB_OFFSETS_CONCAT (GRUB_KERNEL_, MACHINE, _PREFIX_END)
#define GRUB_BOOT_MACHINE_KERNEL_SEG GRUB_OFFSETS_CONCAT (GRUB_BOOT_, MACHINE, _KERNEL_SEG)
#define GRUB_MEMORY_MACHINE_UPPER GRUB_OFFSETS_CONCAT (GRUB_MEMORY_, MACHINE, _UPPER)
#define GRUB_KERNEL_MACHINE_RAW_SIZE GRUB_OFFSETS_CONCAT (GRUB_KERNEL_, MACHINE, _RAW_SIZE)

49
include/grub/script_sh.h
View file

@ -40,8 +40,13 @@ struct grub_script_cmd
struct grub_script
{
unsigned refcnt;
struct grub_script_mem *mem;
struct grub_script_cmd *cmd;
/* grub_scripts from block arguments. */
struct grub_script *next_siblings;
struct grub_script *children;
};
typedef enum
@ -50,7 +55,8 @@ typedef enum
GRUB_SCRIPT_ARG_TYPE_TEXT,
GRUB_SCRIPT_ARG_TYPE_DQVAR,
GRUB_SCRIPT_ARG_TYPE_DQSTR,
GRUB_SCRIPT_ARG_TYPE_SQSTR
GRUB_SCRIPT_ARG_TYPE_SQSTR,
GRUB_SCRIPT_ARG_TYPE_BLOCK
} grub_script_arg_type_t;
/* A part of an argument. */
@ -60,6 +66,9 @@ struct grub_script_arg
char *str;
/* Parsed block argument. */
struct grub_script *script;
/* Next argument part. */
struct grub_script_arg *next;
};
@ -69,6 +78,7 @@ struct grub_script_argv
{
unsigned argc;
char **args;
struct grub_script *script;
};
/* A complete argument. It consists of a list of one or more `struct
@ -194,6 +204,12 @@ struct grub_lexer_param
/* Type of text. */
grub_script_arg_type_t type;
/* Flag to indicate resplit in progres. */
unsigned resplit;
/* Text that is unput. */
char *prefix;
/* Flex scanner. */
void *yyscanner;
@ -217,6 +233,9 @@ struct grub_parser_param
/* The memory that was used while parsing and scanning. */
struct grub_script_mem *memused;
/* The block argument scripts. */
struct grub_script *scripts;
/* The result of the parser. */
struct grub_script_cmd *parsed;
@ -226,6 +245,8 @@ struct grub_parser_param
void grub_script_init (void);
void grub_script_fini (void);
void grub_script_mem_free (struct grub_script_mem *mem);
void grub_script_argv_free (struct grub_script_argv *argv);
int grub_script_argv_next (struct grub_script_argv *argv);
int grub_script_argv_append (struct grub_script_argv *argv, const char *s);
@ -287,9 +308,9 @@ struct grub_lexer_param *grub_script_lexer_init (struct grub_parser_param *parse
void grub_script_lexer_fini (struct grub_lexer_param *);
void grub_script_lexer_ref (struct grub_lexer_param *);
void grub_script_lexer_deref (struct grub_lexer_param *);
void grub_script_lexer_record_start (struct grub_parser_param *);
char *grub_script_lexer_record_stop (struct grub_parser_param *);
int grub_script_lexer_yywrap (struct grub_parser_param *);
unsigned grub_script_lexer_record_start (struct grub_parser_param *);
char *grub_script_lexer_record_stop (struct grub_parser_param *, unsigned);
int grub_script_lexer_yywrap (struct grub_parser_param *, const char *input);
void grub_script_lexer_record (struct grub_parser_param *, char *);
/* Functions to track allocated memory. */
@ -368,4 +389,24 @@ grub_script_execute_arglist_to_argv (struct grub_script_arglist *arglist, int *c
grub_err_t
grub_normal_parse_line (char *line, grub_reader_getline_t getline);
static inline struct grub_script *
grub_script_ref (struct grub_script *script)
{
if (script)
script->refcnt++;
return script;
}
static inline void
grub_script_unref (struct grub_script *script)
{
if (! script)
return;
if (script->refcnt == 0)
grub_script_free (script);
else
script->refcnt--;
}
#endif /* ! GRUB_NORMAL_PARSER_HEADER */