1 /*
2 * UUID/GUID definition
3 *
4 * Copyright (C) 2010, 2016 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.
15 */
16 #ifndef _LINUX_UUID_H_
17 #define _LINUX_UUID_H_
18
19 #include <uapi/linux/uuid.h>
20
21 /*
22 * The length of a UUID string ("aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee")
23 * not including trailing NUL.
24 */
25 #define UUID_STRING_LEN 36
26
uuid_le_cmp(const uuid_le u1,const uuid_le u2)27 static inline int uuid_le_cmp(const uuid_le u1, const uuid_le u2)
28 {
29 return memcmp(&u1, &u2, sizeof(uuid_le));
30 }
31
uuid_be_cmp(const uuid_be u1,const uuid_be u2)32 static inline int uuid_be_cmp(const uuid_be u1, const uuid_be u2)
33 {
34 return memcmp(&u1, &u2, sizeof(uuid_be));
35 }
36
37 void generate_random_uuid(unsigned char uuid[16]);
38
39 extern void uuid_le_gen(uuid_le *u);
40 extern void uuid_be_gen(uuid_be *u);
41
42 bool __must_check uuid_is_valid(const char *uuid);
43
44 extern const u8 uuid_le_index[16];
45 extern const u8 uuid_be_index[16];
46
47 int uuid_le_to_bin(const char *uuid, uuid_le *u);
48 int uuid_be_to_bin(const char *uuid, uuid_be *u);
49
50 #endif
51