48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright (C) 2014 Samsung Electronics
|
|
* Przemyslaw Marczak <p.marczak@samsung.com>
|
|
*/
|
|
#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
|