2 * Copyright (c) 2016 Netflix, Inc.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * $FreeBSD: head/lib/libefivar/efivar.h 343755 2019-02-04 21:28:25Z imp $
33 #include <sys/endian.h>
36 /* Shoud these be elsewhere ? */
37 #define EFI_VARIABLE_NON_VOLATILE 0x00000001
38 #define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x00000002
39 #define EFI_VARIABLE_RUNTIME_ACCESS 0x00000004
40 #define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x00000008
41 #define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x00000010
42 #define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS \
44 #define EFI_VARIABLE_APPEND_WRITE 0x00000040
46 #define EFI_VARIABLE_HAS_AUTH_HEADER
47 #define EFI_VARIABLE_HAS_SIGNATURE
51 #ifndef _EFIVAR_EFI_GUID_T_DEF
52 #define _EFIVAR_EFI_GUID_T_DEF
53 typedef uuid_t efi_guid_t
;
56 #if BYTE_ORDER == LITTLE_ENDIAN
57 #define EFI_GUID(a, b, c, d, e0, e1, e2, e3, e4, e5) \
58 ((efi_guid_t) {(a), (b), (c), (d) >> 8, (d) & 0xff, \
59 { (e0), (e1), (e2), (e3), (e4), (e5) }})
61 #define EFI_GUID(a, b, c, d, e0, e1, e2, e3, e4, e5) \
62 ((efi_guid_t) {(a), (b), (c), (d) & 0xff, (d) >> 8, \
63 { (e0), (e1), (e2), (e3), (e4), (e5) }})
66 #define EFI_GLOBAL_GUID EFI_GUID(0x8be4df61, 0x93ca, 0x11d2, 0xaa0d, \
67 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c)
69 int efi_append_variable(efi_guid_t guid
, const char *name
,
70 uint8_t *data
, size_t data_size
, uint32_t attributes
);
71 int efi_del_variable(efi_guid_t guid
, const char *name
);
72 int efi_get_variable(efi_guid_t guid
, const char *name
,
73 uint8_t **data
, size_t *data_size
, uint32_t *attributes
);
74 int efi_get_variable_attributes(efi_guid_t guid
, const char *name
,
75 uint32_t *attributes
);
76 int efi_get_variable_size(efi_guid_t guid
, const char *name
, size_t *size
);
77 int efi_get_next_variable_name(efi_guid_t
**guid
, char **name
);
78 int efi_guid_cmp(const efi_guid_t
*guid1
, const efi_guid_t
*guid2
);
79 int efi_guid_is_zero(const efi_guid_t
*guid1
);
80 int efi_guid_to_name(efi_guid_t
*guid
, char **name
);
81 int efi_guid_to_symbol(efi_guid_t
*guid
, char **symbol
);
82 int efi_guid_to_str(const efi_guid_t
*guid
, char **sp
);
83 int efi_name_to_guid(const char *name
, efi_guid_t
*guid
);
84 int efi_set_variable(efi_guid_t guid
, const char *name
,
85 uint8_t *data
, size_t data_size
, uint32_t attributes
);
86 int efi_str_to_guid(const char *s
, efi_guid_t
*guid
);
87 int efi_variables_supported(void);
89 /* FreeBSD extensions */
97 int efi_known_guid(struct uuid_table
**);
99 extern const efi_guid_t efi_guid_empty
;
101 #endif /* _EFIVAR_H_ */