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16#ifndef _LINUX_UUID_H_
17#define _LINUX_UUID_H_
18
19#include <uapi/linux/uuid.h>
20#include <linux/string.h>
21
22#define UUID_SIZE 16
23
24typedef struct {
25 __u8 b[UUID_SIZE];
26} uuid_t;
27
28#define UUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
29((uuid_t) \
30{{ ((a) >> 24) & 0xff, ((a) >> 16) & 0xff, ((a) >> 8) & 0xff, (a) & 0xff, \
31 ((b) >> 8) & 0xff, (b) & 0xff, \
32 ((c) >> 8) & 0xff, (c) & 0xff, \
33 (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
34
35
36
37
38
39#define UUID_STRING_LEN 36
40
41extern const guid_t guid_null;
42extern const uuid_t uuid_null;
43
44static inline bool guid_equal(const guid_t *u1, const guid_t *u2)
45{
46 return memcmp(u1, u2, sizeof(guid_t)) == 0;
47}
48
49static inline void guid_copy(guid_t *dst, const guid_t *src)
50{
51 memcpy(dst, src, sizeof(guid_t));
52}
53
54static inline void import_guid(guid_t *dst, const __u8 *src)
55{
56 memcpy(dst, src, sizeof(guid_t));
57}
58
59static inline void export_guid(__u8 *dst, const guid_t *src)
60{
61 memcpy(dst, src, sizeof(guid_t));
62}
63
64static inline bool guid_is_null(const guid_t *guid)
65{
66 return guid_equal(guid, &guid_null);
67}
68
69static inline bool uuid_equal(const uuid_t *u1, const uuid_t *u2)
70{
71 return memcmp(u1, u2, sizeof(uuid_t)) == 0;
72}
73
74static inline void uuid_copy(uuid_t *dst, const uuid_t *src)
75{
76 memcpy(dst, src, sizeof(uuid_t));
77}
78
79static inline void import_uuid(uuid_t *dst, const __u8 *src)
80{
81 memcpy(dst, src, sizeof(uuid_t));
82}
83
84static inline void export_uuid(__u8 *dst, const uuid_t *src)
85{
86 memcpy(dst, src, sizeof(uuid_t));
87}
88
89static inline bool uuid_is_null(const uuid_t *uuid)
90{
91 return uuid_equal(uuid, &uuid_null);
92}
93
94void generate_random_uuid(unsigned char uuid[16]);
95
96extern void guid_gen(guid_t *u);
97extern void uuid_gen(uuid_t *u);
98
99bool __must_check uuid_is_valid(const char *uuid);
100
101extern const u8 guid_index[16];
102extern const u8 uuid_index[16];
103
104int guid_parse(const char *uuid, guid_t *u);
105int uuid_parse(const char *uuid, uuid_t *u);
106
107
108#define uuid_le_gen(u) guid_gen(u)
109#define uuid_le_to_bin(guid, u) guid_parse(guid, u)
110
111static inline int uuid_le_cmp(const guid_t u1, const guid_t u2)
112{
113 return memcmp(&u1, &u2, sizeof(guid_t));
114}
115
116#endif
117