1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Copyright (C) 2014 Samsung Electronics 4 * Przemyslaw Marczak <p.marczak (at) samsung.com> 5 */ 6 #ifndef __UUID_H__ 7 #define __UUID_H__ 8 9 /* This is structure is in big-endian */ 10 struct uuid { 11 unsigned int time_low; 12 unsigned short time_mid; 13 unsigned short time_hi_and_version; 14 unsigned char clock_seq_hi_and_reserved; 15 unsigned char clock_seq_low; 16 unsigned char node[6]; 17 } __packed; 18 19 enum { 20 UUID_STR_FORMAT_STD, 21 UUID_STR_FORMAT_GUID 22 }; 23 24 #define UUID_STR_LEN 36 25 #define UUID_BIN_LEN sizeof(struct uuid) 26 27 #define UUID_VERSION_MASK 0xf000 28 #define UUID_VERSION_SHIFT 12 29 #define UUID_VERSION 0x4 30 31 #define UUID_VARIANT_MASK 0xc0 32 #define UUID_VARIANT_SHIFT 7 33 #define UUID_VARIANT 0x1 34 35 int uuid_str_valid(const char *uuid); 36 int uuid_str_to_bin(char *uuid_str, unsigned char *uuid_bin, int str_format); 37 void uuid_bin_to_str(unsigned char *uuid_bin, char *uuid_str, int str_format); 38 #ifdef CONFIG_PARTITION_TYPE_GUID 39 int uuid_guid_get_bin(const char *guid_str, unsigned char *guid_bin); 40 int uuid_guid_get_str(unsigned char *guid_bin, char *guid_str); 41 #endif 42 void gen_rand_uuid(unsigned char *uuid_bin); 43 void gen_rand_uuid_str(char *uuid_str, int str_format); 44 #endif 45
