diff options
Diffstat (limited to 'include/linux/uuid.h')
| -rw-r--r-- | include/linux/uuid.h | 70 | 
1 files changed, 70 insertions, 0 deletions
diff --git a/include/linux/uuid.h b/include/linux/uuid.h new file mode 100644 index 00000000000..5b7efbfcee4 --- /dev/null +++ b/include/linux/uuid.h @@ -0,0 +1,70 @@ +/* + * UUID/GUID definition + * + * Copyright (C) 2010, Intel Corp. + *	Huang Ying <ying.huang@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation; + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU 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 _LINUX_UUID_H_ +#define _LINUX_UUID_H_ + +#include <linux/types.h> +#include <linux/string.h> + +typedef struct { +	__u8 b[16]; +} uuid_le; + +typedef struct { +	__u8 b[16]; +} uuid_be; + +#define UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)		\ +((uuid_le)								\ +{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \ +   (b) & 0xff, ((b) >> 8) & 0xff,					\ +   (c) & 0xff, ((c) >> 8) & 0xff,					\ +   (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }}) + +#define UUID_BE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)		\ +((uuid_be)								\ +{{ ((a) >> 24) & 0xff, ((a) >> 16) & 0xff, ((a) >> 8) & 0xff, (a) & 0xff, \ +   ((b) >> 8) & 0xff, (b) & 0xff,					\ +   ((c) >> 8) & 0xff, (c) & 0xff,					\ +   (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }}) + +#define NULL_UUID_LE							\ +	UUID_LE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00,	\ +		0x00, 0x00, 0x00, 0x00) + +#define NULL_UUID_BE							\ +	UUID_BE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00,	\ +		0x00, 0x00, 0x00, 0x00) + +static inline int uuid_le_cmp(const uuid_le u1, const uuid_le u2) +{ +	return memcmp(&u1, &u2, sizeof(uuid_le)); +} + +static inline int uuid_be_cmp(const uuid_be u1, const uuid_be u2) +{ +	return memcmp(&u1, &u2, sizeof(uuid_be)); +} + +extern void uuid_le_gen(uuid_le *u); +extern void uuid_be_gen(uuid_be *u); + +#endif  |