ReactOS  0.4.14-dev-1007-g90d795b
tbfind.c
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1 /******************************************************************************
2  *
3  * Module Name: tbfind - find table
4  *
5  *****************************************************************************/
6 
7 /*
8  * Copyright (C) 2000 - 2020, 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 #include "actables.h"
47 
48 #define _COMPONENT ACPI_TABLES
49  ACPI_MODULE_NAME ("tbfind")
50 
51 
52 /*******************************************************************************
53  *
54  * FUNCTION: AcpiTbFindTable
55  *
56  * PARAMETERS: Signature - String with ACPI table signature
57  * OemId - String with the table OEM ID
58  * OemTableId - String with the OEM Table ID
59  * TableIndex - Where the table index is returned
60  *
61  * RETURN: Status and table index
62  *
63  * DESCRIPTION: Find an ACPI table (in the RSDT/XSDT) that matches the
64  * Signature, OEM ID and OEM Table ID. Returns an index that can
65  * be used to get the table header or entire table.
66  *
67  ******************************************************************************/
68 
71  char *Signature,
72  char *OemId,
73  char *OemTableId,
74  UINT32 *TableIndex)
75 {
78  UINT32 i;
79 
80 
81  ACPI_FUNCTION_TRACE (TbFindTable);
82 
83 
84  /* Validate the input table signature */
85 
87  {
89  }
90 
91  /* Don't allow the OEM strings to be too long */
92 
93  if ((strlen (OemId) > ACPI_OEM_ID_SIZE) ||
94  (strlen (OemTableId) > ACPI_OEM_TABLE_ID_SIZE))
95  {
97  }
98 
99  /* Normalize the input strings */
100 
101  memset (&Header, 0, sizeof (ACPI_TABLE_HEADER));
102  ACPI_COPY_NAMESEG (Header.Signature, Signature);
103  strncpy (Header.OemId, OemId, ACPI_OEM_ID_SIZE);
104  strncpy (Header.OemTableId, OemTableId, ACPI_OEM_TABLE_ID_SIZE);
105 
106  /* Search for the table */
107 
109  for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i)
110  {
111  if (memcmp (&(AcpiGbl_RootTableList.Tables[i].Signature),
112  Header.Signature, ACPI_NAMESEG_SIZE))
113  {
114  /* Not the requested table */
115 
116  continue;
117  }
118 
119  /* Table with matching signature has been found */
120 
121  if (!AcpiGbl_RootTableList.Tables[i].Pointer)
122  {
123  /* Table is not currently mapped, map it */
124 
125  Status = AcpiTbValidateTable (&AcpiGbl_RootTableList.Tables[i]);
126  if (ACPI_FAILURE (Status))
127  {
128  goto UnlockAndExit;
129  }
130 
131  if (!AcpiGbl_RootTableList.Tables[i].Pointer)
132  {
133  continue;
134  }
135  }
136 
137  /* Check for table match on all IDs */
138 
139  if (!memcmp (AcpiGbl_RootTableList.Tables[i].Pointer->Signature,
140  Header.Signature, ACPI_NAMESEG_SIZE) &&
141  (!OemId[0] ||
142  !memcmp (AcpiGbl_RootTableList.Tables[i].Pointer->OemId,
143  Header.OemId, ACPI_OEM_ID_SIZE)) &&
144  (!OemTableId[0] ||
145  !memcmp (AcpiGbl_RootTableList.Tables[i].Pointer->OemTableId,
146  Header.OemTableId, ACPI_OEM_TABLE_ID_SIZE)))
147  {
148  *TableIndex = i;
149 
150  ACPI_DEBUG_PRINT ((ACPI_DB_TABLES, "Found table [%4.4s]\n",
151  Header.Signature));
152  goto UnlockAndExit;
153  }
154  }
156 
157 UnlockAndExit:
160 }
struct png_info_def **typedef void(__cdecl typeof(png_destroy_read_struct))(struct png_struct_def **
Definition: typeof.h:49
int memcmp(void *Buffer1, void *Buffer2, ACPI_SIZE Count)
Definition: utclib.c:112
ACPI_SIZE strlen(const char *String)
Definition: utclib.c:269
char * strncpy(char *DstString, const char *SrcString, ACPI_SIZE Count)
Definition: utclib.c:427
BOOLEAN AcpiUtValidNameseg(char *Signature)
Definition: utascii.c:63
UINT32 ACPI_STATUS
Definition: actypes.h:460
#define ACPI_OEM_TABLE_ID_SIZE
Definition: actypes.h:422
#define ACPI_FAILURE(a)
Definition: acexcep.h:95
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
ACPI_STATUS AcpiUtReleaseMutex(ACPI_MUTEX_HANDLE MutexId)
Definition: utmutex.c:348
ACPI_STATUS AcpiUtAcquireMutex(ACPI_MUTEX_HANDLE MutexId)
Definition: utmutex.c:256
unsigned int UINT32
Definition: Header.h:8
#define ACPI_MODULE_NAME(Name)
Definition: acoutput.h:216
#define AE_BAD_SIGNATURE
Definition: acexcep.h:167
#define ACPI_DB_TABLES
Definition: acoutput.h:169
#define ACPI_DEBUG_PRINT(pl)
Definition: acoutput.h:475
#define ACPI_MTX_TABLES
Definition: aclocal.h:86
#define AE_NOT_FOUND
Definition: acexcep.h:113
#define AE_AML_STRING_LIMIT
Definition: acexcep.h:196
#define ACPI_OEM_ID_SIZE
Definition: actypes.h:421
#define ACPI_COPY_NAMESEG(dest, src)
Definition: actypes.h:562
Status
Definition: gdiplustypes.h:24
#define return_ACPI_STATUS(s)
Definition: acoutput.h:496
#define ACPI_FUNCTION_TRACE(a)
Definition: acoutput.h:480
ACPI_STATUS AcpiTbValidateTable(ACPI_TABLE_DESC *TableDesc)
Definition: tbdata.c:353
#define ACPI_NAMESEG_SIZE
Definition: actypes.h:415
static const WCHAR Signature[]
Definition: parser.c:141
#define memset(x, y, z)
Definition: compat.h:39
ACPI_STATUS AcpiTbFindTable(char *Signature, char *OemId, char *OemTableId, UINT32 *TableIndex)
Definition: tbfind.c:70
#define AE_OK
Definition: acexcep.h:97