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- /* SPDX-License-Identifier: GPL-2.0+ */
- /*
- * Copyright (C) 2014 Samsung Electronics
- * Przemyslaw Marczak <p.marczak@samsung.com>
- * Copyright 2022-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
- *
- * Authors:
- * Abdellatif El Khlifi <abdellatif.elkhlifi@arm.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);
- /**
- * uuid_str_to_le_bin() - Convert string UUID to little endian binary data.
- * @uuid_str: pointer to UUID string
- * @uuid_bin: pointer to allocated array for little endian output [16B]
- * Return:
- * uuid_bin filled with little endian UUID data
- * On success 0 is returned. Otherwise, failure code.
- */
- int uuid_str_to_le_bin(const char *uuid_str, unsigned char *uuid_bin);
- #endif
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