diff options
Diffstat (limited to 'include/qemu/uuid.h')
-rw-r--r-- | include/qemu/uuid.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/include/qemu/uuid.h b/include/qemu/uuid.h new file mode 100644 index 0000000..afe4840 --- /dev/null +++ b/include/qemu/uuid.h @@ -0,0 +1,59 @@ +/* + * QEMU UUID functions + * + * Copyright 2016 Red Hat, Inc. + * + * Authors: + * Fam Zheng <famz@redhat.com> + * + * 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 + +#include "qemu-common.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-" \ + "%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); + +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); + +void qemu_uuid_bswap(QemuUUID *uuid); + +#endif |