1802d0beec
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
89 lines
2 KiB
C
89 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* UUID/GUID definition
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*
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* Copyright (C) 2010, 2016 Intel Corp.
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* Huang Ying <ying.huang@intel.com>
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*/
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#ifndef _LINUX_UUID_H_
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#define _LINUX_UUID_H_
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#include <uapi/linux/uuid.h>
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#include <linux/string.h>
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#define UUID_SIZE 16
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typedef struct {
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__u8 b[UUID_SIZE];
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} uuid_t;
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#define UUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
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((uuid_t) \
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{{ ((a) >> 24) & 0xff, ((a) >> 16) & 0xff, ((a) >> 8) & 0xff, (a) & 0xff, \
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((b) >> 8) & 0xff, (b) & 0xff, \
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((c) >> 8) & 0xff, (c) & 0xff, \
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(d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
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/*
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* The length of a UUID string ("aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee")
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* not including trailing NUL.
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*/
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#define UUID_STRING_LEN 36
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extern const guid_t guid_null;
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extern const uuid_t uuid_null;
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static inline bool guid_equal(const guid_t *u1, const guid_t *u2)
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{
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return memcmp(u1, u2, sizeof(guid_t)) == 0;
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}
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static inline void guid_copy(guid_t *dst, const guid_t *src)
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{
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memcpy(dst, src, sizeof(guid_t));
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}
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static inline bool guid_is_null(const guid_t *guid)
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{
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return guid_equal(guid, &guid_null);
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}
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static inline bool uuid_equal(const uuid_t *u1, const uuid_t *u2)
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{
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return memcmp(u1, u2, sizeof(uuid_t)) == 0;
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}
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static inline void uuid_copy(uuid_t *dst, const uuid_t *src)
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{
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memcpy(dst, src, sizeof(uuid_t));
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}
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static inline bool uuid_is_null(const uuid_t *uuid)
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{
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return uuid_equal(uuid, &uuid_null);
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}
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void generate_random_uuid(unsigned char uuid[16]);
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extern void guid_gen(guid_t *u);
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extern void uuid_gen(uuid_t *u);
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bool __must_check uuid_is_valid(const char *uuid);
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extern const u8 guid_index[16];
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extern const u8 uuid_index[16];
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int guid_parse(const char *uuid, guid_t *u);
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int uuid_parse(const char *uuid, uuid_t *u);
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/* backwards compatibility, don't use in new code */
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#define uuid_le_gen(u) guid_gen(u)
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#define uuid_le_to_bin(guid, u) guid_parse(guid, u)
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static inline int uuid_le_cmp(const guid_t u1, const guid_t u2)
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{
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return memcmp(&u1, &u2, sizeof(guid_t));
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}
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#endif
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