/* $NetBSD: uuid.h,v 1.1.1.1 2008/12/22 00:18:43 haad Exp $ */ /* * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved. * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. * * This file is part of LVM2. * * This copyrighted material is made available to anyone wishing to use, * modify, copy, or redistribute it subject to the terms and conditions * of the GNU Lesser General Public License v.2.1. * * You should have received a copy of the GNU Lesser General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _LVM_UUID_H #define _LVM_UUID_H #define ID_LEN 32 #define ID_LEN_S "32" struct id { int8_t uuid[ID_LEN]; }; /* * Unique logical volume identifier * With format1 this is VG uuid + LV uuid + '\0' + padding */ union lvid { struct id id[2]; char s[2 * sizeof(struct id) + 1 + 7]; }; int lvid_from_lvnum(union lvid *lvid, struct id *vgid, uint32_t lv_num); int lvnum_from_lvid(union lvid *lvid); int lvid_in_restricted_range(union lvid *lvid); void uuid_from_num(char *uuid, uint32_t num); int lvid_create(union lvid *lvid, struct id *vgid); int id_create(struct id *id); int id_valid(struct id *id); int id_equal(const struct id *lhs, const struct id *rhs); /* * Fills 'buffer' with a more human readable form * of the uuid. */ int id_write_format(const struct id *id, char *buffer, size_t size); /* * Reads a formatted uuid. */ int id_read_format(struct id *id, const char *buffer); #endif