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
31 #include <sys/endian.h>
34 /* Shoud these be elsewhere ? */
35 #define EFI_VARIABLE_NON_VOLATILE 0x00000001
36 #define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x00000002
37 #define EFI_VARIABLE_RUNTIME_ACCESS 0x00000004
38 #define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x00000008
39 #define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x00000010
40 #define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS \
42 #define EFI_VARIABLE_APPEND_WRITE 0x00000040
44 #define EFI_VARIABLE_HAS_AUTH_HEADER
45 #define EFI_VARIABLE_HAS_SIGNATURE
49 #ifndef _EFIVAR_EFI_GUID_T_DEF
50 #define _EFIVAR_EFI_GUID_T_DEF
51 typedef uuid_t efi_guid_t;
54 #if BYTE_ORDER == LITTLE_ENDIAN
55 #define EFI_GUID(a, b, c, d, e0, e1, e2, e3, e4, e5) \
56 ((efi_guid_t) {(a), (b), (c), (d) >> 8, (d) & 0xff, \
57 { (e0), (e1), (e2), (e3), (e4), (e5) }})
59 #define EFI_GUID(a, b, c, d, e0, e1, e2, e3, e4, e5) \
60 ((efi_guid_t) {(a), (b), (c), (d) & 0xff, (d) >> 8, \
61 { (e0), (e1), (e2), (e3), (e4), (e5) }})
64 #define EFI_GLOBAL_GUID EFI_GUID(0x8be4df61, 0x93ca, 0x11d2, 0xaa0d, \
65 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c)
67 int efi_append_variable(efi_guid_t guid, const char *name,
68 uint8_t *data, size_t data_size, uint32_t attributes);
69 int efi_del_variable(efi_guid_t guid, const char *name);
70 int efi_get_variable(efi_guid_t guid, const char *name,
71 uint8_t **data, size_t *data_size, uint32_t *attributes);
72 int efi_get_variable_attributes(efi_guid_t guid, const char *name,
73 uint32_t *attributes);
74 int efi_get_variable_size(efi_guid_t guid, const char *name, size_t *size);
75 int efi_get_next_variable_name(efi_guid_t **guid, char **name);
76 int efi_guid_cmp(const efi_guid_t *guid1, const efi_guid_t *guid2);
77 int efi_guid_is_zero(const efi_guid_t *guid1);
78 int efi_guid_to_name(efi_guid_t *guid, char **name);
79 int efi_guid_to_symbol(efi_guid_t *guid, char **symbol);
80 int efi_guid_to_str(const efi_guid_t *guid, char **sp);
81 int efi_name_to_guid(const char *name, efi_guid_t *guid);
82 int efi_set_variable(efi_guid_t guid, const char *name,
83 uint8_t *data, size_t data_size, uint32_t attributes);
84 int efi_str_to_guid(const char *s, efi_guid_t *guid);
85 int efi_variables_supported(void);
87 /* FreeBSD extensions */
95 int efi_known_guid(struct uuid_table **);
97 extern const efi_guid_t efi_guid_empty;
99 #endif /* _EFIVAR_H_ */