xref: /trueos/lib/libefi/libefi.h (revision 834fb25a9ed2240101506d137b5be7d71c75f306)
1 /*-
2  * Copyright (c) 2010 Marcel Moolenaar
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #ifndef _LIBEFI_H_
30 #define	_LIBEFI_H_
31 
32 #include <sys/types.h>
33 #include <sys/uuid.h>
34 #include <stddef.h>
35 
36 /* Attributes. */
37 #define	EFI_ATTR_NV	0x0001	/* Variable stored in NVRAM. */
38 #define	EFI_ATTR_BS	0x0002	/* Boot services accessable. */
39 #define	EFI_ATTR_RT	0x0004	/* Runtime accessable. */
40 #define	EFI_ATTR_HR	0x0008	/* Hardware error record. */
41 #define	EFI_ATTR_WR	0x0010	/* Authenticated write access. */
42 
43 /* Vendor for architecturally defined variables. */
44 #define	EFI_GLOBAL_VARIABLE	\
45 	{0x8be4df61,0x93ca,0x11d2,0xaa,0x0d,{0x00,0xe0,0x98,0x03,0x2b,0x8c}}
46 
47 /* Vendor for FreeBSD-specific variables. */
48 #define	EFI_FREEBSD_VARIABLE	\
49 	{0x13c32014,0x0c9c,0x11df,0xa2,0x38,{0x00,0x17,0xa4,0xab,0x91,0x2d}}
50 
51 __BEGIN_DECLS
52 int	efi_getvar	(char *, uuid_t *, uint32_t *, size_t *, void *);
53 int	efi_nextvarname	(size_t *, char *, uuid_t *);
54 int	efi_setvar	(char *, uuid_t *, uint32_t, size_t, void *);
55 __END_DECLS
56 
57 #endif /* _LIBEFI_H_ */
58