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/*
* Copyright (C) 2001 Sistina Software (UK) Limited.
*
* This file is released under the GPL.
*/
#ifndef _LVM_UUID_H
#define _LVM_UUID_H
#include "lvm-types.h"
#define ID_LEN 32
#define ID_LEN_S "32"
struct id {
uint8_t uuid[ID_LEN];
};
/*
* Unique logical volume identifier
* With format1 this is VG uuid + LV uuid + '\0'
*/
union lvid {
struct id id[2];
char s[2 * sizeof(struct id) + 1];
};
int lvid_from_lvnum(union lvid *lvid, struct id *vgid, int lv_num);
int lvnum_from_lvid(union lvid *lvid);
int lvid_create(union lvid *lvid, struct id *vgid);
int id_create(struct id *id);
int id_valid(struct id *id);
int id_equal(struct id *lhs, struct id *rhs);
/*
* Fills 'buffer' with a more human readable form
* of the uuid.
*/
int id_write_format(struct id *id, char *buffer, size_t size);
/*
* Reads a formatted uuid.
*/
int id_read_format(struct id *id, char *buffer);
#endif
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