2 * Copyright (c) 2016 Netflix, Inc.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer
10 * in this position and unchanged.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 #include <sys/endian.h>
37 /* Shoud these be elsewhere ? */
38 #define EFI_VARIABLE_NON_VOLATILE 0x00000001
39 #define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x00000002
40 #define EFI_VARIABLE_RUNTIME_ACCESS 0x00000004
41 #define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x00000008
42 #define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x00000010
43 #define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS \
45 #define EFI_VARIABLE_APPEND_WRITE 0x00000040
47 #define EFI_VARIABLE_HAS_AUTH_HEADER
48 #define EFI_VARIABLE_HAS_SIGNATURE
52 #ifndef _EFIVAR_EFI_GUID_T_DEF
53 #define _EFIVAR_EFI_GUID_T_DEF
54 typedef uuid_t efi_guid_t;
57 #if BYTE_ORDER == LITTLE_ENDIAN
58 #define EFI_GUID(a, b, c, d, e0, e1, e2, e3, e4, e5) \
59 ((efi_guid_t) {(a), (b), (c), (d) >> 8, (d) & 0xff, \
60 { (e0), (e1), (e2), (e3), (e4), (e5) }})
62 #define EFI_GUID(a, b, c, d, e0, e1, e2, e3, e4, e5) \
63 ((efi_guid_t) {(a), (b), (c), (d) & 0xff, (d) >> 8, \
64 { (e0), (e1), (e2), (e3), (e4), (e5) }})
67 #define EFI_GLOBAL_GUID EFI_GUID(0x8be4df61, 0x93ca, 0x11d2, 0xaa0d, \
68 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c)
70 int efi_append_variable(efi_guid_t guid, const char *name,
71 uint8_t *data, size_t data_size, uint32_t attributes);
72 int efi_del_variable(efi_guid_t guid, const char *name);
73 int efi_get_variable(efi_guid_t guid, const char *name,
74 uint8_t **data, size_t *data_size, uint32_t *attributes);
75 int efi_get_variable_attributes(efi_guid_t guid, const char *name,
76 uint32_t *attributes);
77 int efi_get_variable_size(efi_guid_t guid, const char *name, size_t *size);
78 int efi_get_next_variable_name(efi_guid_t **guid, char **name);
79 int efi_guid_cmp(const efi_guid_t *guid1, const efi_guid_t *guid2);
80 int efi_guid_is_zero(const efi_guid_t *guid1);
81 int efi_guid_to_name(efi_guid_t *guid, char **name);
82 int efi_guid_to_symbol(efi_guid_t *guid, char **symbol);
83 int efi_guid_to_str(const efi_guid_t *guid, char **sp);
84 int efi_name_to_guid(const char *name, efi_guid_t *guid);
85 int efi_set_variable(efi_guid_t guid, const char *name,
86 uint8_t *data, size_t data_size, uint32_t attributes);
87 int efi_str_to_guid(const char *s, efi_guid_t *guid);
88 int efi_variables_supported(void);
90 /* FreeBSD extensions */
98 int efi_known_guid(struct uuid_table **);
100 extern const efi_guid_t efi_guid_empty;
102 #endif /* _EFIVAR_H_ */