| Huang Ying | fab1c23 | 2010-05-18 14:35:18 +0800 | [diff] [blame] | 1 | /* |
| 2 | * UUID/GUID definition |
| 3 | * |
| 4 | * Copyright (C) 2010, Intel Corp. |
| 5 | * Huang Ying <ying.huang@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 _LINUX_UUID_H_ |
| 22 | #define _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 | static inline int uuid_le_cmp(const uuid_le u1, const uuid_le u2) |
| 58 | { |
| 59 | return memcmp(&u1, &u2, sizeof(uuid_le)); |
| 60 | } |
| 61 | |
| 62 | static inline int uuid_be_cmp(const uuid_be u1, const uuid_be u2) |
| 63 | { |
| 64 | return memcmp(&u1, &u2, sizeof(uuid_be)); |
| 65 | } |
| 66 | |
| 67 | extern void uuid_le_gen(uuid_le *u); |
| 68 | extern void uuid_be_gen(uuid_be *u); |
| 69 | |
| 70 | #endif |