uapi/linux/uuid.h

0001 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
0002 /* DO NOT USE in new code! This is solely for MEI due to legacy reasons */
0003 /*
0004  * UUID/GUID definition
0005  *
0006  * Copyright (C) 2010, Intel Corp.
0007  *  Huang Ying <ying.huang@intel.com>
0008  */
0009
0010 #ifndef _UAPI_LINUX_UUID_H_
0011 #define _UAPI_LINUX_UUID_H_
0012
0013 #include <linux/types.h>
0014
0015 typedef struct {
0016     __u8 b[16];
0017 } guid_t;
0018
0019 #define GUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)          \
0020 ((guid_t)                               \
0021 {{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
0022    (b) & 0xff, ((b) >> 8) & 0xff,                   \
0023    (c) & 0xff, ((c) >> 8) & 0xff,                   \
0024    (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
0025
0026 /* backwards compatibility, don't use in new code */
0027 typedef guid_t uuid_le;
0028 #define UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)        \
0029     GUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)
0030 #define NULL_UUID_LE                            \
0031     UUID_LE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, \
0032          0x00, 0x00, 0x00, 0x00)
0033
0034 #endif /* _UAPI_LINUX_UUID_H_ */