UUID

Data Structures
struct	uuid
	Binary representation of a UUID. More...

Macros
#define	UUID_SIZE   16U
	Number of bytes in the binary representation of a UUID.
#define	UUID_STR_LEN   37U
	Length of the UUID canonical string representation, including the NULL terminator.
#define	UUID_BASE64_LEN   25U
	Length of the UUID base64 string representation, including the NULL terminator.
#define	UUID_BASE64URL_LEN   23U
	Length of the UUID base64 URL and filename safe string representation, including the NULL terminator.

Functions
int	uuid_generate_v4 (struct uuid *out)
	Generate a UUIDv4.
int	uuid_generate_v5 (const struct uuid *namespace, const void *data, size_t data_size, struct uuid *out)
	Generate a UUIDv5.
int	uuid_copy (const struct uuid *data, struct uuid *out)
	Copy an UUID into another UUID.
int	uuid_from_buffer (const uint8_t data[16U], struct uuid *out)
	Create a uuid_t from a binary (big-endian) formatted UUID.
int	uuid_from_string (const char data[37U], struct uuid *out)
	Parse a UUID from its canonical (RFC9562) string representation.
int	uuid_to_buffer (const struct uuid *data, uint8_t out[16U])
	Create a uuid_t from a binary (big-endian) formatted UUID.
int	uuid_to_string (const struct uuid *data, char out[37U])
	Convert a UUID to its canonical (RFC9562) string representation.
int	uuid_to_base64 (const struct uuid *data, char out[25U])
	Convert a UUID to its base 64 (RFC 3548, RFC 4648) string representation.
int	uuid_to_base64url (const struct uuid *data, char out[23U])
	Convert a UUID to its base 64 (RFC 4648 sec.

Detailed Description

Since

4.0

Version

0.1.0

Macro Definition Documentation

UUID_BASE64_LEN

#define UUID_BASE64_LEN   25U

#include <zephyr/sys/uuid.h>

Length of the UUID base64 string representation, including the NULL terminator.

UUID_BASE64URL_LEN

#define UUID_BASE64URL_LEN   23U

#include <zephyr/sys/uuid.h>

Length of the UUID base64 URL and filename safe string representation, including the NULL terminator.

UUID_SIZE

#define UUID_SIZE   16U

#include <zephyr/sys/uuid.h>

Number of bytes in the binary representation of a UUID.

UUID_STR_LEN

#define UUID_STR_LEN   37U

#include <zephyr/sys/uuid.h>

Length of the UUID canonical string representation, including the NULL terminator.

Function Documentation

uuid_copy()

int uuid_copy	(	const struct uuid *	data,
		struct uuid *	out )

#include <zephyr/sys/uuid.h>

Copy an UUID into another UUID.

Parameters

data	Input data to copy.
out	Destination for the copy.

Return values

0	The UUID has been correctly copied in dst
-EINVAL	dst is not acceptable

uuid_from_buffer()

int uuid_from_buffer	(	const uint8_t	data[16U],
		struct uuid *	out )

#include <zephyr/sys/uuid.h>

Create a uuid_t from a binary (big-endian) formatted UUID.

Parameters

data	The buffer where the binary UUID is stored in a big-endian order.
out	The UUID where the result will be written.

Return values

0	The UUID has been correctly parsed and stored in out
-EINVAL	data or out are not acceptable

uuid_from_string()

int uuid_from_string	(	const char	data[37U],
		struct uuid *	out )

#include <zephyr/sys/uuid.h>

Parse a UUID from its canonical (RFC9562) string representation.

Parameters

data	A pointer to the string to be parsed.
out	The UUID where the result will be written.

Return values

0	The UUID has been correctly parsed and stored in out
-EINVAL	input or out are not acceptable

uuid_generate_v4()

int uuid_generate_v4

(

struct uuid *

out

)

#include <zephyr/sys/uuid.h>

Generate a UUIDv4.

Parameters

out	The UUID where the result will be written.

Return values

0	The UUID has been correctly generated and stored in out
-EINVAL	out is not acceptable

uuid_generate_v5()

int uuid_generate_v5	(	const struct uuid *	namespace,
		const void *	data,
		size_t	data_size,
		struct uuid *	out )

#include <zephyr/sys/uuid.h>

Generate a UUIDv5.

This function computes a deterministic UUID starting from a namespace UUID and binary data.

Parameters

namespace	A pointer to an UUID to be used as namespace.
data	A pointer to the data that will be hashed to produce the UUID.
data_size	The size of the data buffer.
out	The UUID where the result will be written.

Return values

0	The UUID has been correctly generated and stored in out
-EINVAL	out is not acceptable
-ENOMEM	Memory allocation failed
-ENOTSUP	mbedTLS returned an unrecognized error

uuid_to_base64()

int uuid_to_base64	(	const struct uuid *	data,
		char	out[25U] )

#include <zephyr/sys/uuid.h>

Convert a UUID to its base 64 (RFC 3548, RFC 4648) string representation.

Parameters

data	The UUID to convert to string.
out	A pointer to a previously allocated buffer where the result will be written.

Return values

0	The UUID has been converted and written in out
-EINVAL	out is not acceptable

uuid_to_base64url()

int uuid_to_base64url	(	const struct uuid *	data,
		char	out[23U] )

#include <zephyr/sys/uuid.h>

Convert a UUID to its base 64 (RFC 4648 sec.

5) URL and filename safe string representation.

Parameters

data	The UUID to convert to string.
out	A pointer to a previously allocated buffer where the result will be written.

Return values

0	The UUID has been converted and written in out
-EINVAL	out is not acceptable

uuid_to_buffer()

int uuid_to_buffer	(	const struct uuid *	data,
		uint8_t	out[16U] )

#include <zephyr/sys/uuid.h>

Create a uuid_t from a binary (big-endian) formatted UUID.

Parameters

data	The input UUID to store in the buffer.
out	The buffer where the binary UUID is stored in a big-endian order.

Return values

0	The UUID has been correctly parsed and stored in buff
-EINVAL	buff is not acceptable

uuid_to_string()

int uuid_to_string	(	const struct uuid *	data,
		char	out[37U] )

#include <zephyr/sys/uuid.h>

Convert a UUID to its canonical (RFC9562) string representation.

Parameters

data	The UUID to convert to string.
out	A pointer to a previously allocated buffer where the result will be written.

Return values

0	The UUID has been converted and written in out
-EINVAL	out is not acceptable