1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /*
3 * UUID/GUID definition
4 *
5 * Copyright (C) 2010, Intel Corp.
6 * Huang Ying <ying.huang@intel.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License version
10 * 2 as published by the Free Software Foundation;
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 */
17
18 #ifndef _UAPI_LINUX_UUID_H_
19 #define _UAPI_LINUX_UUID_H_
20
21 #include <linux/types.h>
22
23 typedef struct {
24 __u8 b[16];
25 } guid_t;
26
27 #define GUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
28 ((guid_t) \
29 {{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
30 (b) & 0xff, ((b) >> 8) & 0xff, \
31 (c) & 0xff, ((c) >> 8) & 0xff, \
32 (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
33
34 /* backwards compatibility, don't use in new code */
35 typedef guid_t uuid_le;
36 #define UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
37 GUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)
38 #define NULL_UUID_LE \
39 UUID_LE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, \
40 0x00, 0x00, 0x00, 0x00)
41
42 #endif /* _UAPI_LINUX_UUID_H_ */