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/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef _UUID_H_
#define _UUID_H_
#include <string.h>
#include <stdint.h>
#define UUID_LEN 16
#define UUID_STRLEN 36
/*
* Parses a canonical UUID string into the common byte representation
* where the first three words are interpreted as little endian:
*
* The UUID
* "00112233-4455-6677-8899-aabbccddeeff"
* is stored as
* 33 22 11 00 55 44 77 66 88 99 aa bb cc dd ee ff
*
* Returns negative value on error, 0 on success.
*/
int parse_uuid(uint8_t *uuid, const char *uuid_str);
typedef struct {
uint8_t b[16];
} __packed guid_t;
#define GUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
((guid_t) \
{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
(b) & 0xff, ((b) >> 8) & 0xff, \
(c) & 0xff, ((c) >> 8) & 0xff, \
(d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) } })
static inline int guidcmp(const guid_t *guid1, const guid_t *guid2)
{
return memcmp(guid1, guid2, sizeof(guid_t));
}
static inline guid_t *guidcpy(guid_t *dest, const guid_t *src)
{
return (guid_t *)memcpy(dest, src, sizeof(guid_t));
}
#endif /* _UUID_H_ */
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