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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111/* SPDX-License-Identifier: GPL-2.0-only *//* * UUID/GUID definition * * Copyright (C) 2010, 2016 Intel Corp. * Huang Ying <ying.huang@intel.com> */#ifndef _LINUX_UUID_H_#define _LINUX_UUID_H_
#include <linux/string.h>
#define UUID_SIZE 16
typedef struct { __u8 b[UUID_SIZE];} guid_t;
typedef struct { __u8 b[UUID_SIZE];} uuid_t;
#define GUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \((guid_t) \{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \ (b) & 0xff, ((b) >> 8) & 0xff, \ (c) & 0xff, ((c) >> 8) & 0xff, \ (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
#define UUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \((uuid_t) \{{ ((a) >> 24) & 0xff, ((a) >> 16) & 0xff, ((a) >> 8) & 0xff, (a) & 0xff, \ ((b) >> 8) & 0xff, (b) & 0xff, \ ((c) >> 8) & 0xff, (c) & 0xff, \ (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
/* * The length of a UUID string ("aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee") * not including trailing NUL. */#define UUID_STRING_LEN 36
extern const guid_t guid_null;extern const uuid_t uuid_null;
static inline bool guid_equal(const guid_t *u1, const guid_t *u2){ return memcmp(u1, u2, sizeof(guid_t)) == 0;}
static inline void guid_copy(guid_t *dst, const guid_t *src){ memcpy(dst, src, sizeof(guid_t));}
static inline void import_guid(guid_t *dst, const __u8 *src){ memcpy(dst, src, sizeof(guid_t));}
static inline void export_guid(__u8 *dst, const guid_t *src){ memcpy(dst, src, sizeof(guid_t));}
static inline bool guid_is_null(const guid_t *guid){ return guid_equal(guid, &guid_null);}
static inline bool uuid_equal(const uuid_t *u1, const uuid_t *u2){ return memcmp(u1, u2, sizeof(uuid_t)) == 0;}
static inline void uuid_copy(uuid_t *dst, const uuid_t *src){ memcpy(dst, src, sizeof(uuid_t));}
static inline void import_uuid(uuid_t *dst, const __u8 *src){ memcpy(dst, src, sizeof(uuid_t));}
static inline void export_uuid(__u8 *dst, const uuid_t *src){ memcpy(dst, src, sizeof(uuid_t));}
static inline bool uuid_is_null(const uuid_t *uuid){ return uuid_equal(uuid, &uuid_null);}
void generate_random_uuid(unsigned char uuid[16]);void generate_random_guid(unsigned char guid[16]);
extern void guid_gen(guid_t *u);extern void uuid_gen(uuid_t *u);
bool __must_check uuid_is_valid(const char *uuid);
extern const u8 guid_index[16];extern const u8 uuid_index[16];
int guid_parse(const char *uuid, guid_t *u);int uuid_parse(const char *uuid, uuid_t *u);
#endif