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      1 /*
      2  * UUID/GUID definition
      3  *
      4  * Copyright (C) 2010, Intel Corp.
      5  *	Huang Ying <ying.huang (at) intel.com>
      6  *
      7  * This program is free software; you can redistribute it and/or
      8  * modify it under the terms of the GNU General Public License version
      9  * 2 as published by the Free Software Foundation;
     10  *
     11  * This program is distributed in the hope that it will be useful,
     12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14  * GNU General Public License for more details.
     15  *
     16  * You should have received a copy of the GNU General Public License
     17  * along with this program; if not, write to the Free Software
     18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
     19  */
     20 
     21 #ifndef _UAPI_LINUX_UUID_H_
     22 #define _UAPI_LINUX_UUID_H_
     23 
     24 #include <linux/types.h>
     25 #include <linux/string.h>
     26 
     27 typedef struct {
     28 	__u8 b[16];
     29 } uuid_le;
     30 
     31 typedef struct {
     32 	__u8 b[16];
     33 } uuid_be;
     34 
     35 #define UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)		\
     36 ((uuid_le)								\
     37 {{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
     38    (b) & 0xff, ((b) >> 8) & 0xff,					\
     39    (c) & 0xff, ((c) >> 8) & 0xff,					\
     40    (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
     41 
     42 #define UUID_BE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)		\
     43 ((uuid_be)								\
     44 {{ ((a) >> 24) & 0xff, ((a) >> 16) & 0xff, ((a) >> 8) & 0xff, (a) & 0xff, \
     45    ((b) >> 8) & 0xff, (b) & 0xff,					\
     46    ((c) >> 8) & 0xff, (c) & 0xff,					\
     47    (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
     48 
     49 #define NULL_UUID_LE							\
     50 	UUID_LE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00,	\
     51 		0x00, 0x00, 0x00, 0x00)
     52 
     53 #define NULL_UUID_BE							\
     54 	UUID_BE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00,	\
     55 		0x00, 0x00, 0x00, 0x00)
     56 
     57 
     58 #endif /* _UAPI_LINUX_UUID_H_ */
     59