diff options
Diffstat (limited to 'include/uuid.h')
| -rw-r--r-- | include/uuid.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/include/uuid.h b/include/uuid.h new file mode 100644 index 0000000..abcc325 --- /dev/null +++ b/include/uuid.h @@ -0,0 +1,46 @@ +/* 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) + +#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(char *uuid_str, unsigned char *uuid_bin, int str_format); +void uuid_bin_to_str(unsigned char *uuid_bin, char *uuid_str, int str_format); +#ifdef CONFIG_PARTITION_TYPE_GUID +int uuid_guid_get_bin(const char *guid_str, unsigned char *guid_bin); +int uuid_guid_get_str(unsigned char *guid_bin, char *guid_str); +#endif +void gen_rand_uuid(unsigned char *uuid_bin); +void gen_rand_uuid_str(char *uuid_str, int str_format); +#endif |