1 /******************************************************************************
3 * Module Name: asluuid-- compiler UUID support
5 *****************************************************************************/
7 /******************************************************************************
11 * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
12 * All rights reserved.
16 * 2.1. This is your license from Intel Corp. under its intellectual property
17 * rights. You may have additional license terms from the party that provided
18 * you this software, covering your right to use that party's intellectual
21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22 * copy of the source code appearing in this file ("Covered Code") an
23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24 * base code distributed originally by Intel ("Original Intel Code") to copy,
25 * make derivatives, distribute, use and display any portion of the Covered
26 * Code in any form, with the right to sublicense such rights; and
28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29 * license (with the right to sublicense), under only those claims of Intel
30 * patents that are infringed by the Original Intel Code, to make, use, sell,
31 * offer to sell, and import the Covered Code and derivative works thereof
32 * solely to the minimum extent necessary to exercise the above copyright
33 * license, and in no event shall the patent license extend to any additions
34 * to or modifications of the Original Intel Code. No other license or right
35 * is granted directly or by implication, estoppel or otherwise;
37 * The above copyright and patent license is granted only if the following
42 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43 * Redistribution of source code of any substantial portion of the Covered
44 * Code or modification with rights to further distribute source must include
45 * the above Copyright Notice, the above License, this list of Conditions,
46 * and the following Disclaimer and Export Compliance provision. In addition,
47 * Licensee must cause all Covered Code to which Licensee contributes to
48 * contain a file documenting the changes Licensee made to create that Covered
49 * Code and the date of any change. Licensee must include in that file the
50 * documentation of any changes made by any predecessor Licensee. Licensee
51 * must include a prominent statement that the modification is derived,
52 * directly or indirectly, from Original Intel Code.
54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55 * Redistribution of source code of any substantial portion of the Covered
56 * Code or modification without rights to further distribute source must
57 * include the following Disclaimer and Export Compliance provision in the
58 * documentation and/or other materials provided with distribution. In
59 * addition, Licensee may not authorize further sublicense of source of any
60 * portion of the Covered Code, and must include terms to the effect that the
61 * license from Licensee to its licensee is limited to the intellectual
62 * property embodied in the software Licensee provides to its licensee, and
63 * not to intellectual property embodied in modifications its licensee may
66 * 3.3. Redistribution of Executable. Redistribution in executable form of any
67 * substantial portion of the Covered Code or modification must reproduce the
68 * above Copyright Notice, and the following Disclaimer and Export Compliance
69 * provision in the documentation and/or other materials provided with the
72 * 3.4. Intel retains all right, title, and interest in and to the Original
75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76 * Intel shall be used in advertising or otherwise to promote the sale, use or
77 * other dealings in products derived from or relating to the Covered Code
78 * without prior written authorization from Intel.
80 * 4. Disclaimer and Export Compliance
82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
99 * 4.3. Licensee shall not export, either directly or indirectly, any of this
100 * software or system incorporating such software without first obtaining any
101 * required license or other approval from the U. S. Department of Commerce or
102 * any other agency or department of the United States Government. In the
103 * event Licensee exports any such software from the United States or
104 * re-exports any such software from a foreign destination, Licensee shall
105 * ensure that the distribution and export/re-export of the software is in
106 * compliance with all laws, regulations, orders, or other restrictions of the
107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108 * any of its subsidiaries will export/re-export any technical data, process,
109 * software, or service, directly or indirectly, to any country for which the
110 * United States government or any agency thereof requires an export license,
111 * other governmental approval, or letter of assurance, without first obtaining
112 * such license, approval or letter.
114 *****************************************************************************/
117 #include "aslcompiler.h"
119 #define _COMPONENT ACPI_COMPILER
120 ACPI_MODULE_NAME ("asluuid")
124 * UUID support functions.
126 * This table is used to convert an input UUID ascii string to a 16 byte
127 * buffer and the reverse. The table maps a UUID buffer index 0-15 to
128 * the index within the 36-byte UUID string where the associated 2-byte
129 * hex value can be found.
131 * 36-byte UUID strings are of the form:
132 * aabbccdd-eeff-gghh-iijj-kkllmmnnoopp
133 * Where aa-pp are one byte hex numbers, made up of two hex digits
135 * Note: This table is basically the inverse of the string-to-offset table
136 * found in the ACPI spec in the description of the ToUUID macro.
138 static UINT8 Gbl_MapToUuidOffset[16] =
140 6,4,2,0,11,9,16,14,19,21,24,26,28,30,32,34
143 #define UUID_BUFFER_LENGTH 16
144 #define UUID_STRING_LENGTH 36
146 /* Positions for required hyphens (dashes) in UUID strings */
148 #define UUID_HYPHEN1_OFFSET 8
149 #define UUID_HYPHEN2_OFFSET 13
150 #define UUID_HYPHEN3_OFFSET 18
151 #define UUID_HYPHEN4_OFFSET 23
154 /*******************************************************************************
156 * FUNCTION: AuValiduateUuid
158 * PARAMETERS: InString - 36-byte formatted UUID string
162 * DESCRIPTION: Check all 36 characters for correct format
164 ******************************************************************************/
173 if (!InString || (ACPI_STRLEN (InString) != UUID_STRING_LENGTH))
175 return (AE_BAD_PARAMETER);
178 /* Check all 36 characters for correct format */
180 for (i = 0; i < UUID_STRING_LENGTH; i++)
182 /* Must have 4 hyphens (dashes) in these positions: */
184 if ((i == UUID_HYPHEN1_OFFSET) ||
185 (i == UUID_HYPHEN2_OFFSET) ||
186 (i == UUID_HYPHEN3_OFFSET) ||
187 (i == UUID_HYPHEN4_OFFSET))
189 if (InString[i] != '-')
191 return (AE_BAD_PARAMETER);
195 /* All other positions must contain hex digits */
199 if (!isxdigit ((int) InString[i]))
201 return (AE_BAD_PARAMETER);
210 /*******************************************************************************
212 * FUNCTION: AuConvertStringToUuid
214 * PARAMETERS: InString - 36-byte formatted UUID string
215 * UuidBuffer - 16-byte UUID buffer
219 * DESCRIPTION: Convert 36-byte formatted UUID string to 16-byte UUID buffer
221 ******************************************************************************/
224 AuConvertStringToUuid (
231 if (!InString || !UuidBuffer)
233 return (AE_BAD_PARAMETER);
236 for (i = 0; i < UUID_BUFFER_LENGTH; i++)
238 UuidBuffer[i] = (char) (UtHexCharToValue (InString[Gbl_MapToUuidOffset[i]]) << 4);
239 UuidBuffer[i] |= (char) UtHexCharToValue (InString[Gbl_MapToUuidOffset[i] + 1]);
246 /*******************************************************************************
248 * FUNCTION: AuConvertUuidToString
250 * PARAMETERS: UuidBuffer - 16-byte UUID buffer
251 * OutString - 36-byte formatted UUID string
255 * DESCRIPTION: Convert 16-byte UUID buffer to 36-byte formatted UUID string
256 * OutString must be 37 bytes to include null terminator.
258 ******************************************************************************/
261 AuConvertUuidToString (
268 if (!UuidBuffer || !OutString)
270 return (AE_BAD_PARAMETER);
273 for (i = 0; i < UUID_BUFFER_LENGTH; i++)
275 OutString[Gbl_MapToUuidOffset[i]] = (UINT8) AslHexLookup[(UuidBuffer[i] >> 4) & 0xF];
276 OutString[Gbl_MapToUuidOffset[i] + 1] = (UINT8) AslHexLookup[UuidBuffer[i] & 0xF];
279 /* Insert required hyphens (dashes) */
281 OutString[UUID_HYPHEN1_OFFSET] =
282 OutString[UUID_HYPHEN2_OFFSET] =
283 OutString[UUID_HYPHEN3_OFFSET] =
284 OutString[UUID_HYPHEN4_OFFSET] = '-';
286 OutString[UUID_STRING_LENGTH] = 0; /* Null terminate */