[J-u-boot.git] / include / uuid.h

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Copyright (C) 2014 Samsung Electronics
 * Przemyslaw Marczak <[email protected]>
 */
#ifndef __UUID_H__
#define __UUID_H__

#include <linux/bitops.h>

/* This is structure is in big-endian */
struct uuid {
	unsigned int time_low;
	unsigned short time_mid;
	unsigned short time_hi_and_version;
	unsigned char clock_seq_hi_and_reserved;
	unsigned char clock_seq_low;
	unsigned char node[6];
} __packed;

/* Bits of a bitmask specifying the output format for GUIDs */
#define UUID_STR_FORMAT_STD	0
#define UUID_STR_FORMAT_GUID	BIT(0)
#define UUID_STR_UPPER_CASE	BIT(1)

/* Use UUID_STR_LEN + 1 for string space */
#define UUID_STR_LEN		36
#define UUID_BIN_LEN		sizeof(struct uuid)

#define UUID_VERSION_MASK	0xf000
#define UUID_VERSION_SHIFT	12
#define UUID_VERSION		0x4

#define UUID_VARIANT_MASK	0xc0
#define UUID_VARIANT_SHIFT	7
#define UUID_VARIANT		0x1

int uuid_str_valid(const char *uuid);
int uuid_str_to_bin(const char *uuid_str, unsigned char *uuid_bin,
		    int str_format);
void uuid_bin_to_str(const unsigned char *uuid_bin, char *uuid_str,
		     int str_format);
int uuid_guid_get_bin(const char *guid_str, unsigned char *guid_bin);
const char *uuid_guid_get_str(const unsigned char *guid_bin);
void gen_rand_uuid(unsigned char *uuid_bin);
void gen_rand_uuid_str(char *uuid_str, int str_format);
#endif
Commit	Line	Data
83d290c5	1	/* SPDX-License-Identifier: GPL-2.0+ */
d718ded0 PM	2	/*
	3	* Copyright (C) 2014 Samsung Electronics
	4	* Przemyslaw Marczak <[email protected]>
d718ded0 PM	5	*/
	6	#ifndef __UUID_H__
	7	#define __UUID_H__
	8
3bad256f HS	9	#include <linux/bitops.h>
3bad256f HS	10
4e4815fe PM	11	/* This is structure is in big-endian */
	12	struct uuid {
	13	unsigned int time_low;
	14	unsigned short time_mid;
	15	unsigned short time_hi_and_version;
	16	unsigned char clock_seq_hi_and_reserved;
	17	unsigned char clock_seq_low;
	18	unsigned char node[6];
	19	} __packed;
	20
3bad256f HS	21	/* Bits of a bitmask specifying the output format for GUIDs */
	22	#define UUID_STR_FORMAT_STD 0
	23	#define UUID_STR_FORMAT_GUID BIT(0)
	24	#define UUID_STR_UPPER_CASE BIT(1)
d718ded0	25
f8a2d191	26	/* Use UUID_STR_LEN + 1 for string space */
d718ded0	27	#define UUID_STR_LEN 36
4e4815fe PM	28	#define UUID_BIN_LEN sizeof(struct uuid)
	29
	30	#define UUID_VERSION_MASK 0xf000
	31	#define UUID_VERSION_SHIFT 12
	32	#define UUID_VERSION 0x4
	33
	34	#define UUID_VARIANT_MASK 0xc0
	35	#define UUID_VARIANT_SHIFT 7
	36	#define UUID_VARIANT 0x1
d718ded0 PM	37
d718ded0 PM	38	int uuid_str_valid(const char *uuid);
2c2ca207 SG	39	int uuid_str_to_bin(const char uuid_str, unsigned char uuid_bin,
	40	int str_format);
	41	void uuid_bin_to_str(const unsigned char uuid_bin, char uuid_str,
	42	int str_format);
bcb41dca	43	int uuid_guid_get_bin(const char guid_str, unsigned char guid_bin);
31ce367c	44	const char uuid_guid_get_str(const unsigned char guid_bin);
4e4815fe PM	45	void gen_rand_uuid(unsigned char *uuid_bin);
4e4815fe PM	46	void gen_rand_uuid_str(char *uuid_str, int str_format);
d718ded0	47	#endif