UEFI下利用ixpe远程加载isoboot直接启动PE光盘镜像 - 无忧启动论坛

struct grub_efi_grub_protocol
{
/* file */
grub_efi_status_t (*file_open) (grub_file_t *file, /* out */
const char *name,
enum grub_file_type type);
grub_efi_status_t (*file_open_w) (grub_file_t *file, /* out */
const grub_efi_char16_t *name,
enum grub_file_type type);
grub_efi_intn_t (*file_read) (grub_file_t *file /* in out */,
void *buf /* out */,
grub_efi_uintn_t len);
grub_efi_uint64_t (*file_seek) (grub_file_t *file /* in out */,
grub_efi_uint64_t offset);
grub_efi_status_t (*file_close) (grub_file_t *file /* in out */);
grub_efi_uint64_t (*file_size) (const grub_file_t file);
grub_efi_uint64_t (*file_tell) (const grub_file_t file);
/* command */
grub_efi_status_t (*execute) (const char *name, int argc, char **argv);
/* test */
void (*test) (void);
};
typedef struct grub_efi_grub_protocol grub_efi_grub_protocol_t;
......
static grub_efi_status_t
prot_file_open (grub_file_t *file, const char *name, enum grub_file_type type)
{
*file = grub_file_open (name, type);
if (!*file)
return GRUB_EFI_NOT_FOUND;
return GRUB_EFI_SUCCESS;
}
static grub_efi_status_t
prot_file_open_w (grub_file_t *file, const grub_efi_char16_t *name,
enum grub_file_type type)
{
grub_size_t s16_len = 0;
unsigned char *file_name = NULL;
s16_len = wcslen (name) + 1;
file_name = grub_malloc (s16_len);
if (!file_name)
return GRUB_EFI_OUT_OF_RESOURCES;
grub_utf16_to_utf8 (file_name, name, s16_len);
*file = grub_file_open ((char *)file_name, type);
grub_free (file_name);
if (!*file)
return GRUB_EFI_NOT_FOUND;
return GRUB_EFI_SUCCESS;
}
static grub_efi_intn_t
prot_file_read (grub_file_t *file, void *buf, grub_efi_uintn_t len)
{
return grub_file_read (*file, buf, len);
}
......
static grub_efi_grub_protocol_t grub_prot;
static grub_efi_guid_t grub_prot_guid = GRUB_EFI_GRUB_PROTOCOL_GUID;
static void
grub_prot_init (void)
{
grub_prot.file_open = prot_file_open;
grub_prot.file_open_w = prot_file_open_w;
grub_prot.file_read = prot_file_read;
......
grub_efi_boot_services_t *b;
b = grub_efi_system_table->boot_services;
efi_call_4 (b->install_protocol_interface,
&grub_efi_image_handle, &grub_prot_guid,
GRUB_EFI_NATIVE_INTERFACE, &grub_prot);
}
static void
grub_prot_fini (void)
{
grub_efi_boot_services_t *b;
b = grub_efi_system_table->boot_services;
efi_call_3 (b->uninstall_protocol_interface,
&grub_efi_image_handle, &grub_prot_guid, &grub_prot);
}
GRUB_MOD_INIT(grubprot)
{
grub_prot_init ();
}
GRUB_MOD_FINI(grubprot)
{
grub_prot_fini ();
}

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