sys/contrib/dev/acpica/source/tools/acpiexec/aeinitfile.c

   1 /******************************************************************************
   2  *
   3  * Module Name: aeinitfile - Support for optional initialization file
   4  *
   5  *****************************************************************************/
   6
   7 /******************************************************************************
   8  *
   9  * 1. Copyright Notice
  10  *
  11  * Some or all of this work - Copyright (c) 1999 - 2017, Intel Corp.
  12  * All rights reserved.
  13  *
  14  * 2. License
  15  *
  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
  19  * property rights.
  20  *
  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
  27  *
  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;
  36  *
  37  * The above copyright and patent license is granted only if the following
  38  * conditions are met:
  39  *
  40  * 3. Conditions
  41  *
  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.
  53  *
  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
  64  * make.
  65  *
  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
  70  * distribution.
  71  *
  72  * 3.4. Intel retains all right, title, and interest in and to the Original
  73  * Intel Code.
  74  *
  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.
  79  *
  80  * 4. Disclaimer and Export Compliance
  81  *
  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
  88  * PARTICULAR PURPOSE.
  89  *
  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
  97  * LIMITED REMEDY.
  98  *
  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.
 113  *
 114  *****************************************************************************
 115  *
 116  * Alternatively, you may choose to be licensed under the terms of the
 117  * following license:
 118  *
 119  * Redistribution and use in source and binary forms, with or without
 120  * modification, are permitted provided that the following conditions
 121  * are met:
 122  * 1. Redistributions of source code must retain the above copyright
 123  *    notice, this list of conditions, and the following disclaimer,
 124  *    without modification.
 125  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 126  *    substantially similar to the "NO WARRANTY" disclaimer below
 127  *    ("Disclaimer") and any redistribution must be conditioned upon
 128  *    including a substantially similar Disclaimer requirement for further
 129  *    binary redistribution.
 130  * 3. Neither the names of the above-listed copyright holders nor the names
 131  *    of any contributors may be used to endorse or promote products derived
 132  *    from this software without specific prior written permission.
 133  *
 134  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 135  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 136  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 137  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 138  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 139  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 140  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 141  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 142  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 143  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 144  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 145  *
 146  * Alternatively, you may choose to be licensed under the terms of the
 147  * GNU General Public License ("GPL") version 2 as published by the Free
 148  * Software Foundation.
 149  *
 150  *****************************************************************************/
 151
 152 #include "aecommon.h"
 153 #include "acdispat.h"
 154
 155 #define _COMPONENT          ACPI_TOOLS
 156         ACPI_MODULE_NAME    ("aeinitfile")
 157
 158
 159 /* Local prototypes */
 160
 161 static void
 162 AeDoOneOverride (
 163     char                    *Pathname,
 164     char                    *ValueString,
 165     ACPI_OPERAND_OBJECT     *ObjDesc,
 166     ACPI_WALK_STATE         *WalkState);
 167
 168
 169 #define AE_FILE_BUFFER_SIZE     512
 170
 171 static char                 LineBuffer[AE_FILE_BUFFER_SIZE];
 172 static char                 NameBuffer[AE_FILE_BUFFER_SIZE];
 173 static char                 ValueBuffer[AE_FILE_BUFFER_SIZE];
 174 static FILE                 *InitFile;
 175
 176
 177 /******************************************************************************
 178  *
 179  * FUNCTION:    AeOpenInitializationFile
 180  *
 181  * PARAMETERS:  Filename            - Path to the init file
 182  *
 183  * RETURN:      Status
 184  *
 185  * DESCRIPTION: Open the initialization file for the -fi option
 186  *
 187  *****************************************************************************/
 188
 189 int
 190 AeOpenInitializationFile (
 191     char                    *Filename)
 192 {
 193
 194     InitFile = fopen (Filename, "r");
 195     if (!InitFile)
 196     {
 197         fprintf (stderr,
 198             "Could not open initialization file: %s\n", Filename);
 199         return (-1);
 200     }
 201
 202     AcpiOsPrintf ("Opened initialization file [%s]\n", Filename);
 203     return (0);
 204 }
 205
 206
 207 /******************************************************************************
 208  *
 209  * FUNCTION:    AeDoObjectOverrides
 210  *
 211  * PARAMETERS:  None
 212  *
 213  * RETURN:      None
 214  *
 215  * DESCRIPTION: Read the initialization file and perform all overrides
 216  *
 217  * NOTE:        The format of the file is multiple lines, each of format:
 218  *                  <ACPI-pathname> <Integer Value>
 219  *
 220  *****************************************************************************/
 221
 222 void
 223 AeDoObjectOverrides (
 224     void)
 225 {
 226     ACPI_OPERAND_OBJECT     *ObjDesc;
 227     ACPI_WALK_STATE         *WalkState;
 228     int                     i;
 229
 230
 231     if (!InitFile)
 232     {
 233         return;
 234     }
 235
 236     /* Create needed objects to be reused for each init entry */
 237
 238     ObjDesc = AcpiUtCreateIntegerObject (0);
 239     WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
 240     NameBuffer[0] = '\\';
 241
 242     /* Read the entire file line-by-line */
 243
 244     while (fgets (LineBuffer, AE_FILE_BUFFER_SIZE, InitFile) != NULL)
 245     {
 246         if (sscanf (LineBuffer, "%s %s\n",
 247                 &NameBuffer[1], ValueBuffer) != 2)
 248         {
 249             goto CleanupAndExit;
 250         }
 251
 252         /* Add a root prefix if not present in the string */
 253
 254         i = 0;
 255         if (NameBuffer[1] == '\\')
 256         {
 257             i = 1;
 258         }
 259
 260         AeDoOneOverride (&NameBuffer[i], ValueBuffer, ObjDesc, WalkState);
 261     }
 262
 263     /* Cleanup */
 264
 265 CleanupAndExit:
 266     fclose (InitFile);
 267     AcpiDsDeleteWalkState (WalkState);
 268     AcpiUtRemoveReference (ObjDesc);
 269 }
 270
 271
 272 /******************************************************************************
 273  *
 274  * FUNCTION:    AeDoOneOverride
 275  *
 276  * PARAMETERS:  Pathname            - AML namepath
 277  *              ValueString         - New integer value to be stored
 278  *              ObjDesc             - Descriptor with integer override value
 279  *              WalkState           - Used for the Store operation
 280  *
 281  * RETURN:      None
 282  *
 283  * DESCRIPTION: Perform an override for a single namespace object
 284  *
 285  *****************************************************************************/
 286
 287 static void
 288 AeDoOneOverride (
 289     char                    *Pathname,
 290     char                    *ValueString,
 291     ACPI_OPERAND_OBJECT     *ObjDesc,
 292     ACPI_WALK_STATE         *WalkState)
 293 {
 294     ACPI_HANDLE             Handle;
 295     ACPI_STATUS             Status;
 296     UINT64                  Value;
 297
 298
 299     AcpiOsPrintf ("Value Override: %s, ", Pathname);
 300
 301     /*
 302      * Get the namespace node associated with the override
 303      * pathname from the init file.
 304      */
 305     Status = AcpiGetHandle (NULL, Pathname, &Handle);
 306     if (ACPI_FAILURE (Status))
 307     {
 308         AcpiOsPrintf ("%s\n", AcpiFormatException (Status));
 309         return;
 310     }
 311
 312     /* Extract the 64-bit integer */
 313
 314     Status = AcpiUtStrtoul64 (ValueString, &Value);
 315     if (ACPI_FAILURE (Status))
 316     {
 317         AcpiOsPrintf ("%s %s\n", ValueString,
 318             AcpiFormatException (Status));
 319         return;
 320     }
 321
 322     ObjDesc->Integer.Value = Value;
 323
 324     /*
 325      * At the point this function is called, the namespace is fully
 326      * built and initialized. We can simply store the new object to
 327      * the target node.
 328      */
 329     AcpiExEnterInterpreter ();
 330     Status = AcpiExStore (ObjDesc, Handle, WalkState);
 331     AcpiExExitInterpreter ();
 332
 333     if (ACPI_FAILURE (Status))
 334     {
 335         AcpiOsPrintf ("%s\n", AcpiFormatException (Status));
 336         return;
 337     }
 338
 339     AcpiOsPrintf ("New value: 0x%8.8X%8.8X\n",
 340         ACPI_FORMAT_UINT64 (Value));
 341 }