blob: 129c45f2c5e9f86da545c9a08c21127e2c550d23 [file] [log] [blame]
* QEMU UUID functions
* Copyright 2016 Red Hat, Inc.
* Authors:
* Fam Zheng <>
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
#ifndef QEMU_UUID_H
#define QEMU_UUID_H
/* Version 4 UUID (pseudo random numbers), RFC4122 4.4. */
typedef struct {
union {
unsigned char data[16];
struct {
/* Generated in BE endian, can be swapped with qemu_uuid_bswap. */
uint32_t time_low;
uint16_t time_mid;
uint16_t time_high_and_version;
uint8_t clock_seq_and_reserved;
uint8_t clock_seq_low;
uint8_t node[6];
} fields;
} QemuUUID;
#define UUID_FMT "%02hhx%02hhx%02hhx%02hhx-" \
"%02hhx%02hhx-%02hhx%02hhx-" \
"%02hhx%02hhx-" \
#define UUID_FMT_LEN 36
#define UUID_NONE "00000000-0000-0000-0000-000000000000"
void qemu_uuid_generate(QemuUUID *out);
int qemu_uuid_is_null(const QemuUUID *uu);
int qemu_uuid_is_equal(const QemuUUID *lhv, const QemuUUID *rhv);
void qemu_uuid_unparse(const QemuUUID *uuid, char *out);
char *qemu_uuid_unparse_strdup(const QemuUUID *uuid);
int qemu_uuid_parse(const char *str, QemuUUID *uuid);
QemuUUID qemu_uuid_bswap(QemuUUID uuid);