1 /*- 2 * Copyright (c) 2002 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 /* 30 * Portions copyright (c) 2014-2020, ARM Limited and Contributors. 31 * All rights reserved. 32 */ 33 34 #ifndef UUID_H 35 #define UUID_H 36 37 /* Length of a node address (an IEEE 802 address). */ 38 #define _UUID_NODE_LEN 6 39 40 /* Length of UUID string including dashes. */ 41 #define _UUID_STR_LEN 36 42 43 /* 44 * See also: 45 * http://www.opengroup.org/dce/info/draft-leach-uuids-guids-01.txt 46 * http://www.opengroup.org/onlinepubs/009629399/apdxa.htm 47 * 48 * A DCE 1.1 compatible source representation of UUIDs. 49 */ 50 struct uuid { 51 uint8_t time_low[4]; 52 uint8_t time_mid[2]; 53 uint8_t time_hi_and_version[2]; 54 uint8_t clock_seq_hi_and_reserved; 55 uint8_t clock_seq_low; 56 uint8_t node[_UUID_NODE_LEN]; 57 }; 58 59 struct efi_guid { 60 uint32_t time_low; 61 uint16_t time_mid; 62 uint16_t time_hi_and_version; 63 uint8_t clock_seq_and_node[8]; 64 }; 65 66 union uuid_helper_t { 67 struct uuid uuid_struct; 68 struct efi_guid efi_guid; 69 }; 70 71 /* XXX namespace pollution? */ 72 typedef struct uuid uuid_t; 73 74 #endif /* UUID_H */ 75