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Merge tag 'linux-kselftest-4.8-rc1-update' of git://git.kernel.org/pub/scm/linux...
[mirror_ubuntu-artful-kernel.git] / include / uapi / linux / uuid.h
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1/*
2 * UUID/GUID definition
3 *
4 * Copyright (C) 2010, Intel Corp.
5 * Huang Ying <ying.huang@intel.com>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License version
9 * 2 as published by the Free Software Foundation;
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
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15 */
16
17#ifndef _UAPI_LINUX_UUID_H_
18#define _UAPI_LINUX_UUID_H_
19
20#include <linux/types.h>
21#include <linux/string.h>
22
23typedef struct {
24 __u8 b[16];
25} uuid_le;
26
27typedef struct {
28 __u8 b[16];
29} uuid_be;
30
31#define UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
32((uuid_le) \
33{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
34 (b) & 0xff, ((b) >> 8) & 0xff, \
35 (c) & 0xff, ((c) >> 8) & 0xff, \
36 (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
37
38#define UUID_BE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
39((uuid_be) \
40{{ ((a) >> 24) & 0xff, ((a) >> 16) & 0xff, ((a) >> 8) & 0xff, (a) & 0xff, \
41 ((b) >> 8) & 0xff, (b) & 0xff, \
42 ((c) >> 8) & 0xff, (c) & 0xff, \
43 (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
44
45#define NULL_UUID_LE \
46 UUID_LE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, \
47 0x00, 0x00, 0x00, 0x00)
48
49#define NULL_UUID_BE \
50 UUID_BE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, \
51 0x00, 0x00, 0x00, 0x00)
52
53
54#endif /* _UAPI_LINUX_UUID_H_ */