1 /****************************************************************************** 2 * 3 * Module Name: asluuid-- compiler UUID support 4 * 5 *****************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2017, 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 <contrib/dev/acpica/compiler/aslcompiler.h> 45 46 #define _COMPONENT ACPI_COMPILER 47 ACPI_MODULE_NAME ("asluuid") 48 49 50 extern UINT8 AcpiGbl_MapToUuidOffset[UUID_BUFFER_LENGTH]; 51 52 53 /******************************************************************************* 54 * 55 * FUNCTION: AuValiduateUuid 56 * 57 * PARAMETERS: InString - 36-byte formatted UUID string 58 * 59 * RETURN: Status 60 * 61 * DESCRIPTION: Check all 36 characters for correct format 62 * 63 ******************************************************************************/ 64 65 ACPI_STATUS 66 AuValidateUuid ( 67 char *InString) 68 { 69 UINT32 i; 70 71 72 if (!InString || (strlen (InString) != UUID_STRING_LENGTH)) 73 { 74 return (AE_BAD_PARAMETER); 75 } 76 77 /* Check all 36 characters for correct format */ 78 79 for (i = 0; i < UUID_STRING_LENGTH; i++) 80 { 81 /* Must have 4 hyphens (dashes) in these positions: */ 82 83 if ((i == UUID_HYPHEN1_OFFSET) || 84 (i == UUID_HYPHEN2_OFFSET) || 85 (i == UUID_HYPHEN3_OFFSET) || 86 (i == UUID_HYPHEN4_OFFSET)) 87 { 88 if (InString[i] != '-') 89 { 90 return (AE_BAD_PARAMETER); 91 } 92 } 93 else 94 { 95 /* All other positions must contain hex digits */ 96 97 if (!isxdigit ((int) InString[i])) 98 { 99 return (AE_BAD_PARAMETER); 100 } 101 } 102 } 103 104 return (AE_OK); 105 } 106 107 108 /******************************************************************************* 109 * 110 * FUNCTION: AuConvertUuidToString 111 * 112 * PARAMETERS: UuidBuffer - 16-byte UUID buffer 113 * OutString - 36-byte formatted UUID string 114 * 115 * RETURN: Status 116 * 117 * DESCRIPTION: Convert 16-byte UUID buffer to 36-byte formatted UUID string 118 * OutString must be 37 bytes to include null terminator. 119 * 120 ******************************************************************************/ 121 122 ACPI_STATUS 123 AuConvertUuidToString ( 124 char *UuidBuffer, 125 char *OutString) 126 { 127 UINT32 i; 128 129 130 if (!UuidBuffer || !OutString) 131 { 132 return (AE_BAD_PARAMETER); 133 } 134 135 for (i = 0; i < UUID_BUFFER_LENGTH; i++) 136 { 137 OutString[AcpiGbl_MapToUuidOffset[i]] = 138 AcpiUtHexToAsciiChar (UuidBuffer[i], 4); 139 140 OutString[AcpiGbl_MapToUuidOffset[i] + 1] = 141 AcpiUtHexToAsciiChar (UuidBuffer[i], 0); 142 } 143 144 /* Insert required hyphens (dashes) */ 145 146 OutString[UUID_HYPHEN1_OFFSET] = 147 OutString[UUID_HYPHEN2_OFFSET] = 148 OutString[UUID_HYPHEN3_OFFSET] = 149 OutString[UUID_HYPHEN4_OFFSET] = '-'; 150 151 OutString[UUID_STRING_LENGTH] = 0; /* Null terminate */ 152 return (AE_OK); 153 } 154