You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
95 lines
2.3 KiB
95 lines
2.3 KiB
/*
|
|
* UUID/GUID definition
|
|
*
|
|
* Copyright (C) 2010, 2016 Intel Corp.
|
|
* Huang Ying <ying.huang@intel.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License version
|
|
* 2 as published by the Free Software Foundation;
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
#ifndef _LINUX_UUID_H_
|
|
#define _LINUX_UUID_H_
|
|
|
|
#include <uapi/linux/uuid.h>
|
|
|
|
#define UUID_SIZE 16
|
|
|
|
typedef struct {
|
|
__u8 b[UUID_SIZE];
|
|
} uuid_t;
|
|
|
|
#define UUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
|
|
((uuid_t) \
|
|
{{ ((a) >> 24) & 0xff, ((a) >> 16) & 0xff, ((a) >> 8) & 0xff, (a) & 0xff, \
|
|
((b) >> 8) & 0xff, (b) & 0xff, \
|
|
((c) >> 8) & 0xff, (c) & 0xff, \
|
|
(d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
|
|
|
|
/*
|
|
* The length of a UUID string ("aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee")
|
|
* not including trailing NUL.
|
|
*/
|
|
#define UUID_STRING_LEN 36
|
|
|
|
extern const guid_t guid_null;
|
|
extern const uuid_t uuid_null;
|
|
|
|
static inline bool guid_equal(const guid_t *u1, const guid_t *u2)
|
|
{
|
|
return memcmp(u1, u2, sizeof(guid_t)) == 0;
|
|
}
|
|
|
|
static inline void guid_copy(guid_t *dst, const guid_t *src)
|
|
{
|
|
memcpy(dst, src, sizeof(guid_t));
|
|
}
|
|
|
|
static inline bool guid_is_null(const guid_t *guid)
|
|
{
|
|
return guid_equal(guid, &guid_null);
|
|
}
|
|
|
|
static inline bool uuid_equal(const uuid_t *u1, const uuid_t *u2)
|
|
{
|
|
return memcmp(u1, u2, sizeof(uuid_t)) == 0;
|
|
}
|
|
|
|
static inline void uuid_copy(uuid_t *dst, const uuid_t *src)
|
|
{
|
|
memcpy(dst, src, sizeof(uuid_t));
|
|
}
|
|
|
|
static inline bool uuid_is_null(const uuid_t *uuid)
|
|
{
|
|
return uuid_equal(uuid, &uuid_null);
|
|
}
|
|
|
|
void generate_random_uuid(unsigned char uuid[16]);
|
|
|
|
extern void guid_gen(guid_t *u);
|
|
extern void uuid_gen(uuid_t *u);
|
|
|
|
bool __must_check uuid_is_valid(const char *uuid);
|
|
|
|
extern const u8 guid_index[16];
|
|
extern const u8 uuid_index[16];
|
|
|
|
int guid_parse(const char *uuid, guid_t *u);
|
|
int uuid_parse(const char *uuid, uuid_t *u);
|
|
|
|
/* backwards compatibility, don't use in new code */
|
|
#define uuid_le_gen(u) guid_gen(u)
|
|
#define uuid_le_to_bin(guid, u) guid_parse(guid, u)
|
|
|
|
static inline int uuid_le_cmp(const guid_t u1, const guid_t u2)
|
|
{
|
|
return memcmp(&u1, &u2, sizeof(guid_t));
|
|
}
|
|
|
|
#endif
|
|
|