802 lines
21 KiB
C
802 lines
21 KiB
C
/******************************************************************************
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*
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* Module Name: abcompare - compare AML files
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2013, Intel Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#include "acpibin.h"
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FILE *File1;
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FILE *File2;
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ACPI_TABLE_HEADER Header1;
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ACPI_TABLE_HEADER Header2;
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#define BUFFER_SIZE 256
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char Buffer[BUFFER_SIZE];
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/* Local prototypes */
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static BOOLEAN
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AbValidateHeader (
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ACPI_TABLE_HEADER *Header);
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static UINT8
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AcpiTbSumTable (
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void *Buffer,
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UINT32 Length);
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static char *
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AbGetFile (
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char *Filename,
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UINT32 *FileSize);
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static void
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AbPrintHeaderInfo (
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ACPI_TABLE_HEADER *Header);
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static void
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AbPrintHeadersInfo (
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ACPI_TABLE_HEADER *Header,
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ACPI_TABLE_HEADER *Header2);
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ACPI_PHYSICAL_ADDRESS
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AeLocalGetRootPointer (
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void);
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/*******************************************************************************
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*
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* FUNCTION: UtHexCharToValue
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*
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* PARAMETERS: HexChar - Hex character in Ascii
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*
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* RETURN: The binary value of the hex character
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*
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* DESCRIPTION: Perform ascii-to-hex translation
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*
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******************************************************************************/
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static UINT8
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UtHexCharToValue (
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int HexChar,
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UINT8 *OutBinary)
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{
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if (HexChar >= 0x30 && HexChar <= 0x39)
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{
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*OutBinary = (UINT8) (HexChar - 0x30);
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return (1);
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}
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else if (HexChar >= 0x41 && HexChar <= 0x46)
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{
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*OutBinary = (UINT8) (HexChar - 0x37);
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return (1);
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}
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else if (HexChar >= 0x61 && HexChar <= 0x66)
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{
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*OutBinary = (UINT8) (HexChar - 0x57);
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return (1);
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}
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return (0);
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}
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static UINT8
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AbHexByteToBinary (
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char *HexString,
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char *OutBinary)
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{
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UINT8 Local1;
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UINT8 Local2;
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if (!UtHexCharToValue (HexString[0], &Local1))
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{
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return (0);
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}
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if (!UtHexCharToValue (HexString[1], &Local2))
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{
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return (0);
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}
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*OutBinary = (UINT8) ((Local1 << 4) | Local2);
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return (2);
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}
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/******************************************************************************
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*
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* FUNCTION: AbValidateHeader
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*
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* DESCRIPTION: Check for valid ACPI table header
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*
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******************************************************************************/
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static BOOLEAN
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AbValidateHeader (
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ACPI_TABLE_HEADER *Header)
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{
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if (!AcpiUtValidAcpiName (* (UINT32 *) &Header->Signature))
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{
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printf ("Header signature is invalid\n");
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return (FALSE);
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}
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return (TRUE);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiTbSumTable
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*
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* PARAMETERS: Buffer - Buffer to checksum
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* Length - Size of the buffer
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*
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* RETURNS 8 bit checksum of buffer
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*
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* DESCRIPTION: Computes an 8 bit checksum of the buffer(length) and returns it.
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*
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******************************************************************************/
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static UINT8
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AcpiTbSumTable (
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void *Buffer,
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UINT32 Length)
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{
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const UINT8 *limit;
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const UINT8 *rover;
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UINT8 sum = 0;
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if (Buffer && Length)
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{
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/* Buffer and Length are valid */
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limit = (UINT8 *) Buffer + Length;
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for (rover = Buffer; rover < limit; rover++)
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{
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sum = (UINT8) (sum + *rover);
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}
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}
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return (sum);
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}
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/*******************************************************************************
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*
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* FUNCTION: AbPrintHeaderInfo
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*
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* PARAMETERS: Header - An ACPI table header
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*
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* RETURNS None.
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*
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* DESCRIPTION: Format and display header contents.
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*
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******************************************************************************/
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static void
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AbPrintHeaderInfo (
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ACPI_TABLE_HEADER *Header)
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{
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/* Display header information */
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printf ("Signature : %4.4s\n", Header->Signature);
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printf ("Length : %8.8X\n", Header->Length);
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printf ("Revision : %2.2X\n", Header->Revision);
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printf ("Checksum : %2.2X\n", Header->Checksum);
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printf ("OEM ID : %6.6s\n", Header->OemId);
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printf ("OEM Table ID : %8.8s\n", Header->OemTableId);
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printf ("OEM Revision : %8.8X\n", Header->OemRevision);
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printf ("ASL Compiler ID : %4.4s\n", Header->AslCompilerId);
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printf ("Compiler Revision : %8.8X\n", Header->AslCompilerRevision);
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printf ("\n");
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}
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static void
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AbPrintHeadersInfo (
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ACPI_TABLE_HEADER *Header,
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ACPI_TABLE_HEADER *Header2)
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{
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/* Display header information for both headers */
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printf ("Signature %8.4s : %4.4s\n", Header->Signature, Header2->Signature);
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printf ("Length %8.8X : %8.8X\n", Header->Length, Header2->Length);
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printf ("Revision %8.2X : %2.2X\n", Header->Revision, Header2->Revision);
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printf ("Checksum %8.2X : %2.2X\n", Header->Checksum, Header2->Checksum);
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printf ("OEM ID %8.6s : %6.6s\n", Header->OemId, Header2->OemId);
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printf ("OEM Table ID %8.8s : %8.8s\n", Header->OemTableId, Header2->OemTableId);
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printf ("OEM Revision %8.8X : %8.8X\n", Header->OemRevision, Header2->OemRevision);
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printf ("ASL Compiler ID %8.4s : %4.4s\n", Header->AslCompilerId, Header2->AslCompilerId);
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printf ("Compiler Revision %8.8X : %8.8X\n", Header->AslCompilerRevision, Header2->AslCompilerRevision);
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printf ("\n");
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}
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/******************************************************************************
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*
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* FUNCTION: AbDisplayHeader
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*
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* DESCRIPTION: Display an ACPI table header
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*
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******************************************************************************/
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void
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AbDisplayHeader (
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char *File1Path)
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{
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UINT32 Actual;
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File1 = fopen (File1Path, "rb");
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if (!File1)
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{
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printf ("Could not open file %s\n", File1Path);
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return;
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}
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Actual = fread (&Header1, 1, sizeof (ACPI_TABLE_HEADER), File1);
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if (Actual != sizeof (ACPI_TABLE_HEADER))
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{
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printf ("File %s does not contain an ACPI table header\n", File1Path);
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return;
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}
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if (!AbValidateHeader (&Header1))
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{
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return;
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}
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AbPrintHeaderInfo (&Header1);
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}
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/******************************************************************************
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*
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* FUNCTION: AbComputeChecksum
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*
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* DESCRIPTION: Compute proper checksum for an ACPI table
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*
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******************************************************************************/
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void
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AbComputeChecksum (
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char *File1Path)
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{
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UINT32 Actual;
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ACPI_TABLE_HEADER *Table;
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UINT8 Checksum;
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File1 = fopen (File1Path, "rb");
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if (!File1)
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{
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printf ("Could not open file %s\n", File1Path);
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return;
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}
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Actual = fread (&Header1, 1, sizeof (ACPI_TABLE_HEADER), File1);
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if (Actual < sizeof (ACPI_TABLE_HEADER))
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{
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printf ("File %s does not contain an ACPI table header\n", File1Path);
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return;
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}
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if (!AbValidateHeader (&Header1))
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{
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return;
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}
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if (!Gbl_TerseMode)
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{
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AbPrintHeaderInfo (&Header1);
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}
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/* Allocate a buffer to hold the entire table */
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Table = AcpiOsAllocate (Header1.Length);
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if (!Table)
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{
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printf ("could not allocate\n");
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return;
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}
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/* Read the entire table, including header */
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fseek (File1, 0, SEEK_SET);
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Actual = fread (Table, 1, Header1.Length, File1);
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if (Actual != Header1.Length)
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{
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printf ("could not read table, length %u\n", Header1.Length);
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return;
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}
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/* Compute the checksum for the table */
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Table->Checksum = 0;
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Checksum = (UINT8) (0 - AcpiTbSumTable (Table, Table->Length));
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printf ("Computed checksum: 0x%X\n\n", Checksum);
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if (Header1.Checksum == Checksum)
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{
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printf ("Checksum ok in AML file, not updating\n");
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return;
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}
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/* Open the target file for writing, to update checksum */
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fclose (File1);
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File1 = fopen (File1Path, "r+b");
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if (!File1)
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{
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printf ("Could not open file %s for writing\n", File1Path);
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return;
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}
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/* Set the checksum, write the new header */
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Header1.Checksum = Checksum;
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Actual = fwrite (&Header1, 1, sizeof (ACPI_TABLE_HEADER), File1);
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if (Actual != sizeof (ACPI_TABLE_HEADER))
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{
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printf ("Could not write updated table header\n");
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return;
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}
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printf ("Wrote new checksum\n");
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return;
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}
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/******************************************************************************
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*
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* FUNCTION: AbCompareAmlFiles
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*
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* DESCRIPTION: Compare two AML files
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*
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******************************************************************************/
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int
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AbCompareAmlFiles (
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char *File1Path,
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char *File2Path)
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{
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UINT32 Actual1;
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UINT32 Actual2;
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UINT32 Offset;
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UINT8 Char1;
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UINT8 Char2;
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UINT8 Mismatches = 0;
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BOOLEAN HeaderMismatch = FALSE;
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File1 = fopen (File1Path, "rb");
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if (!File1)
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{
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printf ("Could not open file %s\n", File1Path);
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return (-1);
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}
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File2 = fopen (File2Path, "rb");
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if (!File2)
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{
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printf ("Could not open file %s\n", File2Path);
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return (-1);
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}
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/* Read the ACPI header from each file */
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Actual1 = fread (&Header1, 1, sizeof (ACPI_TABLE_HEADER), File1);
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if (Actual1 != sizeof (ACPI_TABLE_HEADER))
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{
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printf ("File %s does not contain an ACPI table header\n", File1Path);
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return (-1);
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}
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Actual2 = fread (&Header2, 1, sizeof (ACPI_TABLE_HEADER), File2);
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if (Actual2 != sizeof (ACPI_TABLE_HEADER))
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{
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printf ("File %s does not contain an ACPI table header\n", File2Path);
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return (-1);
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}
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if ((!AbValidateHeader (&Header1)) ||
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(!AbValidateHeader (&Header2)))
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{
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return (-1);
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}
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/* Table signatures must match */
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if (*((UINT32 *) Header1.Signature) != *((UINT32 *) Header2.Signature))
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{
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printf ("Table signatures do not match\n");
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return (-1);
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}
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if (!Gbl_TerseMode)
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{
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/* Display header information */
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AbPrintHeadersInfo (&Header1, &Header2);
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}
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if (memcmp (&Header1, &Header2, sizeof (ACPI_TABLE_HEADER)))
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{
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printf ("Headers do not match exactly\n");
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HeaderMismatch = TRUE;
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}
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/* Do the byte-by-byte compare */
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Actual1 = fread (&Char1, 1, 1, File1);
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Actual2 = fread (&Char2, 1, 1, File2);
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Offset = sizeof (ACPI_TABLE_HEADER);
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while ((Actual1 == 1) && (Actual2 == 1))
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{
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if (Char1 != Char2)
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{
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printf ("Error - Byte mismatch at offset %8.8X: 0x%2.2X 0x%2.2X\n",
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Offset, Char1, Char2);
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Mismatches++;
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if (Mismatches > 100)
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{
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printf ("100 Mismatches: Too many mismatches\n");
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return (-1);
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}
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}
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Offset++;
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Actual1 = fread (&Char1, 1, 1, File1);
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Actual2 = fread (&Char2, 1, 1, File2);
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}
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if (Actual1)
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{
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printf ("Error - file %s is longer than file %s\n", File1Path, File2Path);
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Mismatches++;
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}
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else if (Actual2)
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{
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printf ("Error - file %s is shorter than file %s\n", File1Path, File2Path);
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Mismatches++;
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}
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else if (!Mismatches)
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{
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if (HeaderMismatch)
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{
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printf ("Files compare exactly after header\n");
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}
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else
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{
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printf ("Files compare exactly\n");
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}
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}
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printf ("%u Mismatches found\n", Mismatches);
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return (0);
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}
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/******************************************************************************
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*
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* FUNCTION: AbGetFile
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*
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* DESCRIPTION: Open a file and read it entirely into a new buffer
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*
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******************************************************************************/
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static char *
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AbGetFile (
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char *Filename,
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UINT32 *FileSize)
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{
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FILE *File;
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UINT32 Size;
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char *Buffer = NULL;
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int Seek1;
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int Seek2;
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size_t Actual;
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/* Binary mode does not alter CR/LF pairs */
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File = fopen (Filename, "rb");
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if (!File)
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{
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printf ("Could not open file %s\n", Filename);
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return (NULL);
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}
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/* Need file size to allocate a buffer */
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Seek1 = fseek (File, 0L, SEEK_END);
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Size = ftell (File);
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Seek2 = fseek (File, 0L, SEEK_SET);
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if (Seek1 || Seek2 || (Size == -1))
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{
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printf ("Could not get file size (seek) for %s\n", Filename);
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goto ErrorExit;
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}
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/* Allocate a buffer for the entire file */
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Buffer = calloc (Size, 1);
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if (!Buffer)
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{
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printf ("Could not allocate buffer of size %u\n", Size);
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goto ErrorExit;
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}
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/* Read the entire file */
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Actual = fread (Buffer, 1, Size, File);
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if (Actual != Size)
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{
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printf ("Could not read the input file %s\n", Filename);
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free (Buffer);
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Buffer = NULL;
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goto ErrorExit;
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}
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*FileSize = Size;
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ErrorExit:
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fclose (File);
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return (Buffer);
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}
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/******************************************************************************
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*
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* FUNCTION: AbDumpAmlFile
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*
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* DESCRIPTION: Dump a binary AML file to a text file
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*
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******************************************************************************/
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int
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|
AbDumpAmlFile (
|
|
char *File1Path,
|
|
char *File2Path)
|
|
{
|
|
char *FileBuffer;
|
|
UINT32 FileSize = 0;
|
|
FILE *FileOutHandle;
|
|
|
|
|
|
/* Get the entire AML file, validate header */
|
|
|
|
FileBuffer = AbGetFile (File1Path, &FileSize);
|
|
printf ("File %s contains 0x%X bytes\n\n", File1Path, FileSize);
|
|
|
|
FileOutHandle = fopen (File2Path, "wb");
|
|
if (!FileOutHandle)
|
|
{
|
|
printf ("Could not open file %s\n", File2Path);
|
|
return (-1);
|
|
}
|
|
|
|
if (!AbValidateHeader ((ACPI_TABLE_HEADER *) FileBuffer))
|
|
{
|
|
return (-1);
|
|
}
|
|
|
|
/* Convert binary AML to text, using common dump buffer routine */
|
|
|
|
AcpiGbl_DebugFile = FileOutHandle;
|
|
AcpiGbl_DbOutputFlags = ACPI_DB_REDIRECTABLE_OUTPUT;
|
|
|
|
AcpiOsPrintf ("%4.4s @ 0x%8.8X\n",
|
|
((ACPI_TABLE_HEADER *) FileBuffer)->Signature, 0);
|
|
|
|
AcpiDbgLevel = ACPI_UINT32_MAX;
|
|
AcpiUtDebugDumpBuffer ((UINT8 *) FileBuffer, FileSize,
|
|
DB_BYTE_DISPLAY, ACPI_UINT32_MAX);
|
|
|
|
return (0);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AbExtractAmlFile
|
|
*
|
|
* DESCRIPTION: Extract a binary AML file from a text file (as produced by the
|
|
* DumpAmlFile procedure or the "acpidump" table utility.
|
|
*
|
|
******************************************************************************/
|
|
|
|
int
|
|
AbExtractAmlFile (
|
|
char *TableSig,
|
|
char *File1Path,
|
|
char *File2Path)
|
|
{
|
|
char *Table;
|
|
char Value;
|
|
UINT32 i;
|
|
FILE *FileHandle;
|
|
FILE *FileOutHandle;
|
|
UINT32 Count = 0;
|
|
int Scanned;
|
|
|
|
|
|
/* Open in/out files. input is in text mode, output is in binary mode */
|
|
|
|
FileHandle = fopen (File1Path, "rt");
|
|
if (!FileHandle)
|
|
{
|
|
printf ("Could not open file %s\n", File1Path);
|
|
return (-1);
|
|
}
|
|
|
|
FileOutHandle = fopen (File2Path, "w+b");
|
|
if (!FileOutHandle)
|
|
{
|
|
printf ("Could not open file %s\n", File2Path);
|
|
return (-1);
|
|
}
|
|
|
|
/* Force input table sig to uppercase */
|
|
|
|
AcpiUtStrupr (TableSig);
|
|
|
|
|
|
/* TBD: examine input for ASCII */
|
|
|
|
|
|
/* We have an ascii file, grab one line at a time */
|
|
|
|
while (fgets (Buffer, BUFFER_SIZE, FileHandle))
|
|
{
|
|
/* The 4-char ACPI signature appears at the beginning of a line */
|
|
|
|
if (ACPI_COMPARE_NAME (Buffer, TableSig))
|
|
{
|
|
printf ("Found table [%4.4s]\n", TableSig);
|
|
|
|
/*
|
|
* Eat all lines in the table, of the form:
|
|
* <offset>: <16 bytes of hex data, separated by spaces> <ASCII representation> <newline>
|
|
*
|
|
* Example:
|
|
*
|
|
* 02C0: 5F 53 42 5F 4C 4E 4B 44 00 12 13 04 0C FF FF 08 _SB_LNKD........
|
|
*
|
|
*/
|
|
while (fgets (Buffer, BUFFER_SIZE, FileHandle))
|
|
{
|
|
/* Get past the offset, terminated by a colon */
|
|
|
|
Table = strchr (Buffer, ':');
|
|
if (!Table)
|
|
{
|
|
/* No colon, all done */
|
|
goto Exit;
|
|
}
|
|
|
|
Table += 2; /* Eat the colon + space */
|
|
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
Scanned = AbHexByteToBinary (Table, &Value);
|
|
if (!Scanned)
|
|
{
|
|
goto Exit;
|
|
}
|
|
|
|
Table += 3; /* Go past this hex byte and space */
|
|
|
|
/* Write the converted (binary) byte */
|
|
|
|
if (fwrite (&Value, 1, 1, FileOutHandle) != 1)
|
|
{
|
|
printf ("Error writing byte %u to output file: %s\n",
|
|
Count, File2Path);
|
|
goto Exit;
|
|
}
|
|
Count++;
|
|
}
|
|
}
|
|
|
|
/* No more lines, EOF, all done */
|
|
|
|
goto Exit;
|
|
}
|
|
}
|
|
|
|
/* Searched entire file, no match to table signature */
|
|
|
|
printf ("Could not match table signature\n");
|
|
fclose (FileHandle);
|
|
return (-1);
|
|
|
|
Exit:
|
|
printf ("%u (0x%X) bytes written to %s\n", Count, Count, File2Path);
|
|
fclose (FileHandle);
|
|
fclose (FileOutHandle);
|
|
return (0);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: Stubs
|
|
*
|
|
* DESCRIPTION: For linkage
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_PHYSICAL_ADDRESS
|
|
AeLocalGetRootPointer (
|
|
void)
|
|
{
|
|
return (AE_OK);
|
|
}
|
|
|
|
ACPI_THREAD_ID
|
|
AcpiOsGetThreadId (
|
|
void)
|
|
{
|
|
return (0xFFFF);
|
|
}
|
|
|
|
ACPI_STATUS
|
|
AcpiOsExecute (
|
|
ACPI_EXECUTE_TYPE Type,
|
|
ACPI_OSD_EXEC_CALLBACK Function,
|
|
void *Context)
|
|
{
|
|
return (AE_SUPPORT);
|
|
}
|