1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Copyright (C) 2018 Huaxintong Semiconductor Technology Co.,Ltd. All rights
* reserved.
* Author: Ge Song <ge.song@hxt-semitech.com>
*/
#ifndef EFIVAR_H
#define EFIVAR_H
#include <linux/magic.h>
#include <stdint.h>
#define EFI_VARIABLE_NON_VOLATILE 0x00000001
#define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x00000002
#define EFI_VARIABLE_RUNTIME_ACCESS 0x00000004
#define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x00000008
#define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x00000010
#define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS 0x00000020
#define EFI_VARIABLE_APPEND_WRITE 0x00000040
#ifndef EFIVARFS_MAGIC
#define EFIVARFS_MAGIC 0xde5e81e4
#endif
void set_efivarfs_path(const char *path);
const char *get_efivarfs_path(void);
int efi_get_variable(void *ctx, const char *guidstr, const char *name,
uint8_t **data, size_t *data_size, uint32_t *attributes);
int efi_set_variable(void *ctx, const char *guidstr, const char *name,
uint8_t *data, size_t data_size, uint32_t attributes);
int efi_del_variable(void *ctx, const char *guidstr, const char *name);
#endif /* EFIVAR_H */
|