1 | /****************************************************************************** |
2 | * |
3 | * Module Name: utuuid -- UUID support functions |
4 | * |
5 | *****************************************************************************/ |
6 | |
7 | /* |
8 | * Copyright (C) 2000 - 2016, Intel Corp. |
9 | * All rights reserved. |
10 | * |
11 | * Redistribution and use in source and binary forms, with or without |
12 | * modification, are permitted provided that the following conditions |
13 | * are met: |
14 | * 1. Redistributions of source code must retain the above copyright |
15 | * notice, this list of conditions, and the following disclaimer, |
16 | * without modification. |
17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
18 | * substantially similar to the "NO WARRANTY" disclaimer below |
19 | * ("Disclaimer") and any redistribution must be conditioned upon |
20 | * including a substantially similar Disclaimer requirement for further |
21 | * binary redistribution. |
22 | * 3. Neither the names of the above-listed copyright holders nor the names |
23 | * of any contributors may be used to endorse or promote products derived |
24 | * from this software without specific prior written permission. |
25 | * |
26 | * Alternatively, this software may be distributed under the terms of the |
27 | * GNU General Public License ("GPL") version 2 as published by the Free |
28 | * Software Foundation. |
29 | * |
30 | * NO WARRANTY |
31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
41 | * POSSIBILITY OF SUCH DAMAGES. |
42 | */ |
43 | |
44 | #include "acpi.h" |
45 | #include "accommon.h" |
46 | |
47 | #define _COMPONENT ACPI_COMPILER |
48 | ACPI_MODULE_NAME ("utuuid" ) |
49 | |
50 | |
51 | #if (defined ACPI_ASL_COMPILER || defined ACPI_EXEC_APP || defined ACPI_HELP_APP || defined ACPI_DISASSEMBLER) |
52 | /* |
53 | * UUID support functions. |
54 | * |
55 | * This table is used to convert an input UUID ascii string to a 16 byte |
56 | * buffer and the reverse. The table maps a UUID buffer index 0-15 to |
57 | * the index within the 36-byte UUID string where the associated 2-byte |
58 | * hex value can be found. |
59 | * |
60 | * 36-byte UUID strings are of the form: |
61 | * aabbccdd-eeff-gghh-iijj-kkllmmnnoopp |
62 | * Where aa-pp are one byte hex numbers, made up of two hex digits |
63 | * |
64 | * Note: This table is basically the inverse of the string-to-offset table |
65 | * found in the ACPI spec in the description of the ToUUID macro. |
66 | */ |
67 | const UINT8 AcpiGbl_MapToUuidOffset[UUID_BUFFER_LENGTH] = |
68 | { |
69 | 6,4,2,0,11,9,16,14,19,21,24,26,28,30,32,34 |
70 | }; |
71 | |
72 | |
73 | /******************************************************************************* |
74 | * |
75 | * FUNCTION: AcpiUtConvertStringToUuid |
76 | * |
77 | * PARAMETERS: InString - 36-byte formatted UUID string |
78 | * UuidBuffer - Where the 16-byte UUID buffer is returned |
79 | * |
80 | * RETURN: None. Output data is returned in the UuidBuffer |
81 | * |
82 | * DESCRIPTION: Convert a 36-byte formatted UUID string to 16-byte UUID buffer |
83 | * |
84 | ******************************************************************************/ |
85 | |
86 | void |
87 | AcpiUtConvertStringToUuid ( |
88 | const char *InString, |
89 | UINT8 *UuidBuffer) |
90 | { |
91 | UINT32 i; |
92 | |
93 | |
94 | for (i = 0; i < UUID_BUFFER_LENGTH; i++) |
95 | { |
96 | UuidBuffer[i] = (AcpiUtAsciiCharToHex ( |
97 | InString[AcpiGbl_MapToUuidOffset[i]]) << 4); |
98 | |
99 | UuidBuffer[i] |= AcpiUtAsciiCharToHex ( |
100 | InString[AcpiGbl_MapToUuidOffset[i] + 1]); |
101 | } |
102 | } |
103 | #endif |
104 | |