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
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29
30 #include <libefi.h>
31 #include <stdlib.h>
32
33 #include "libefi_int.h"
34
35 /*
36 * EFI_STATUS
37 * SetVariable(
38 * IN CHAR16 *VariableName,
39 * IN EFI_GUID *VendorGuid,
40 * IN UINT32 Attributes,
41 * IN UINTN DataSize,
42 * IN VOID *Data
43 * );
44 */
45
46 int
efi_setvar(char * name,uuid_t * vendor,uint32_t attrib,size_t datasize,void * data)47 efi_setvar(char *name, uuid_t *vendor, uint32_t attrib, size_t datasize,
48 void *data)
49 {
50 struct iodev_efivar_req req;
51 int error;
52
53 req.namesize = 0;
54 error = libefi_utf8_to_ucs2(name, &req.namesize, &req.name);
55 if (error)
56 return (error);
57
58 req.vendor = *vendor;
59 req.attrib = attrib;
60 req.datasize = datasize;
61 req.data = data;
62 req.access = IODEV_EFIVAR_SETVAR;
63 error = libefi_efivar(&req);
64 free(req.name);
65 return (error);
66 }
67