| /****************************************************************************** |
| * |
| * Module Name: abcompare - compare AML files |
| * |
| *****************************************************************************/ |
| |
| /* |
| * Copyright (C) 2000 - 2016, Intel Corp. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions, and the following disclaimer, |
| * without modification. |
| * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| * substantially similar to the "NO WARRANTY" disclaimer below |
| * ("Disclaimer") and any redistribution must be conditioned upon |
| * including a substantially similar Disclaimer requirement for further |
| * binary redistribution. |
| * 3. Neither the names of the above-listed copyright holders nor the names |
| * of any contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * Alternatively, this software may be distributed under the terms of the |
| * GNU General Public License ("GPL") version 2 as published by the Free |
| * Software Foundation. |
| * |
| * NO WARRANTY |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGES. |
| */ |
| |
| #include "acpibin.h" |
| #include "acapps.h" |
| |
| |
| ACPI_TABLE_HEADER Header1; |
| ACPI_TABLE_HEADER Header2; |
| |
| #define BUFFER_SIZE 256 |
| char Buffer[BUFFER_SIZE]; |
| |
| |
| /* Local prototypes */ |
| |
| static BOOLEAN |
| AbValidateHeader ( |
| ACPI_TABLE_HEADER *Header); |
| |
| static UINT8 |
| AcpiTbSumTable ( |
| void *Buffer, |
| UINT32 Length); |
| |
| static char * |
| AbGetFile ( |
| char *Filename, |
| UINT32 *FileSize); |
| |
| static void |
| AbPrintHeaderInfo ( |
| ACPI_TABLE_HEADER *Header); |
| |
| static void |
| AbPrintHeadersInfo ( |
| ACPI_TABLE_HEADER *Header, |
| ACPI_TABLE_HEADER *Header2); |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AbValidateHeader |
| * |
| * DESCRIPTION: Check for valid ACPI table header |
| * |
| ******************************************************************************/ |
| |
| static BOOLEAN |
| AbValidateHeader ( |
| ACPI_TABLE_HEADER *Header) |
| { |
| |
| if (!AcpiUtValidAcpiName (Header->Signature)) |
| { |
| printf ("Header signature is invalid\n"); |
| return (FALSE); |
| } |
| |
| return (TRUE); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiTbSumTable |
| * |
| * PARAMETERS: Buffer - Buffer to checksum |
| * Length - Size of the buffer |
| * |
| * RETURNS 8 bit checksum of buffer |
| * |
| * DESCRIPTION: Computes an 8 bit checksum of the buffer(length) and returns it. |
| * |
| ******************************************************************************/ |
| |
| static UINT8 |
| AcpiTbSumTable ( |
| void *Buffer, |
| UINT32 Length) |
| { |
| const UINT8 *Limit; |
| const UINT8 *Rover; |
| UINT8 Sum = 0; |
| |
| |
| if (Buffer && Length) |
| { |
| /* Buffer and Length are valid */ |
| |
| Limit = (UINT8 *) Buffer + Length; |
| |
| for (Rover = Buffer; Rover < Limit; Rover++) |
| { |
| Sum = (UINT8) (Sum + *Rover); |
| } |
| } |
| |
| return (Sum); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AbPrintHeaderInfo |
| * |
| * PARAMETERS: Header - An ACPI table header |
| * |
| * RETURNS None. |
| * |
| * DESCRIPTION: Format and display header contents. |
| * |
| ******************************************************************************/ |
| |
| static void |
| AbPrintHeaderInfo ( |
| ACPI_TABLE_HEADER *Header) |
| { |
| |
| /* Display header information */ |
| |
| printf ("Signature : %4.4s\n", Header->Signature); |
| printf ("Length : %8.8X\n", Header->Length); |
| printf ("Revision : %2.2X\n", Header->Revision); |
| printf ("Checksum : %2.2X\n", Header->Checksum); |
| printf ("OEM ID : %.6s\n", Header->OemId); |
| printf ("OEM Table ID : %.8s\n", Header->OemTableId); |
| printf ("OEM Revision : %8.8X\n", Header->OemRevision); |
| printf ("ASL Compiler ID : %.4s\n", Header->AslCompilerId); |
| printf ("Compiler Revision : %8.8X\n", Header->AslCompilerRevision); |
| printf ("\n"); |
| } |
| |
| static void |
| AbPrintHeadersInfo ( |
| ACPI_TABLE_HEADER *Header, |
| ACPI_TABLE_HEADER *Header2) |
| { |
| |
| /* Display header information for both headers */ |
| |
| printf ("Signature %8.4s : %4.4s\n", Header->Signature, Header2->Signature); |
| printf ("Length %8.8X : %8.8X\n", Header->Length, Header2->Length); |
| printf ("Revision %8.2X : %2.2X\n", Header->Revision, Header2->Revision); |
| printf ("Checksum %8.2X : %2.2X\n", Header->Checksum, Header2->Checksum); |
| printf ("OEM ID %8.6s : %.6s\n", Header->OemId, Header2->OemId); |
| printf ("OEM Table ID %8.8s : %.8s\n", Header->OemTableId, Header2->OemTableId); |
| printf ("OEM Revision %8.8X : %8.8X\n", Header->OemRevision, Header2->OemRevision); |
| printf ("ASL Compiler ID %8.4s : %.4s\n", Header->AslCompilerId, Header2->AslCompilerId); |
| printf ("Compiler Revision %8.8X : %8.8X\n", Header->AslCompilerRevision, Header2->AslCompilerRevision); |
| printf ("\n"); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AbDisplayHeader |
| * |
| * DESCRIPTION: Display an ACPI table header |
| * |
| ******************************************************************************/ |
| |
| void |
| AbDisplayHeader ( |
| char *FilePath) |
| { |
| UINT32 Actual; |
| FILE *File; |
| |
| |
| File = fopen (FilePath, "rb"); |
| if (!File) |
| { |
| printf ("Could not open file %s\n", FilePath); |
| return; |
| } |
| |
| Actual = fread (&Header1, 1, sizeof (ACPI_TABLE_HEADER), File); |
| fclose (File); |
| |
| if (Actual != sizeof (ACPI_TABLE_HEADER)) |
| { |
| printf ("File %s does not contain a valid ACPI table header\n", FilePath); |
| return; |
| } |
| |
| if (!AbValidateHeader (&Header1)) |
| { |
| return; |
| } |
| |
| AbPrintHeaderInfo (&Header1); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AbComputeChecksum |
| * |
| * DESCRIPTION: Compute proper checksum for an ACPI table |
| * |
| ******************************************************************************/ |
| |
| void |
| AbComputeChecksum ( |
| char *FilePath) |
| { |
| UINT32 Actual; |
| ACPI_TABLE_HEADER *Table; |
| UINT8 Checksum; |
| FILE *File; |
| |
| |
| File = fopen (FilePath, "rb"); |
| if (!File) |
| { |
| printf ("Could not open file %s\n", FilePath); |
| return; |
| } |
| |
| Actual = fread (&Header1, 1, sizeof (ACPI_TABLE_HEADER), File); |
| if (Actual < sizeof (ACPI_TABLE_HEADER)) |
| { |
| printf ("File %s does not contain a valid ACPI table header\n", FilePath); |
| goto Exit1; |
| } |
| |
| if (!AbValidateHeader (&Header1)) |
| { |
| goto Exit1; |
| } |
| |
| if (!Gbl_TerseMode) |
| { |
| AbPrintHeaderInfo (&Header1); |
| } |
| |
| /* Allocate a buffer to hold the entire table */ |
| |
| Table = AcpiOsAllocate (Header1.Length); |
| if (!Table) |
| { |
| printf ("Could not allocate buffer for table\n"); |
| goto Exit1; |
| } |
| |
| /* Read the entire table, including header */ |
| |
| fseek (File, 0, SEEK_SET); |
| Actual = fread (Table, 1, Header1.Length, File); |
| if (Actual != Header1.Length) |
| { |
| printf ("Could not read table, length %u\n", Header1.Length); |
| goto Exit2; |
| } |
| |
| /* Compute the checksum for the table */ |
| |
| Table->Checksum = 0; |
| |
| Checksum = (UINT8) (0 - AcpiTbSumTable (Table, Table->Length)); |
| printf ("Computed checksum: 0x%X\n\n", Checksum); |
| |
| if (Header1.Checksum == Checksum) |
| { |
| printf ("Checksum OK in AML file, not updating\n"); |
| goto Exit2; |
| } |
| |
| /* Open the target file for writing, to update checksum */ |
| |
| fclose (File); |
| File = fopen (FilePath, "r+b"); |
| if (!File) |
| { |
| printf ("Could not open file %s for writing\n", FilePath); |
| goto Exit2; |
| } |
| |
| /* Set the checksum, write the new header */ |
| |
| Header1.Checksum = Checksum; |
| |
| Actual = fwrite (&Header1, 1, sizeof (ACPI_TABLE_HEADER), File); |
| if (Actual != sizeof (ACPI_TABLE_HEADER)) |
| { |
| printf ("Could not write updated table header\n"); |
| goto Exit2; |
| } |
| |
| printf ("Wrote new checksum\n"); |
| |
| Exit2: |
| AcpiOsFree (Table); |
| |
| Exit1: |
| if (File) |
| { |
| fclose (File); |
| } |
| return; |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AbCompareAmlFiles |
| * |
| * DESCRIPTION: Compare two AML files |
| * |
| ******************************************************************************/ |
| |
| int |
| AbCompareAmlFiles ( |
| char *File1Path, |
| char *File2Path) |
| { |
| UINT32 Actual1; |
| UINT32 Actual2; |
| UINT32 Offset; |
| UINT8 Char1; |
| UINT8 Char2; |
| UINT8 Mismatches = 0; |
| BOOLEAN HeaderMismatch = FALSE; |
| FILE *File1; |
| FILE *File2; |
| int Status = -1; |
| |
| |
| File1 = fopen (File1Path, "rb"); |
| if (!File1) |
| { |
| printf ("Could not open file %s\n", File1Path); |
| return (-1); |
| } |
| |
| File2 = fopen (File2Path, "rb"); |
| if (!File2) |
| { |
| printf ("Could not open file %s\n", File2Path); |
| goto Exit1; |
| } |
| |
| /* Read the ACPI header from each file */ |
| |
| Actual1 = fread (&Header1, 1, sizeof (ACPI_TABLE_HEADER), File1); |
| if (Actual1 != sizeof (ACPI_TABLE_HEADER)) |
| { |
| printf ("File %s does not contain an ACPI table header\n", File1Path); |
| goto Exit2; |
| } |
| |
| Actual2 = fread (&Header2, 1, sizeof (ACPI_TABLE_HEADER), File2); |
| if (Actual2 != sizeof (ACPI_TABLE_HEADER)) |
| { |
| printf ("File %s does not contain an ACPI table header\n", File2Path); |
| goto Exit2; |
| } |
| |
| if ((!AbValidateHeader (&Header1)) || |
| (!AbValidateHeader (&Header2))) |
| { |
| goto Exit2; |
| } |
| |
| /* Table signatures must match */ |
| |
| if (*((UINT32 *) Header1.Signature) != *((UINT32 *) Header2.Signature)) |
| { |
| printf ("Table signatures do not match\n"); |
| goto Exit2; |
| } |
| |
| if (!Gbl_TerseMode) |
| { |
| /* Display header information */ |
| |
| AbPrintHeadersInfo (&Header1, &Header2); |
| } |
| |
| if (memcmp (&Header1, &Header2, sizeof (ACPI_TABLE_HEADER))) |
| { |
| printf ("Headers do not match exactly\n"); |
| HeaderMismatch = TRUE; |
| } |
| |
| /* Do the byte-by-byte compare */ |
| |
| Actual1 = fread (&Char1, 1, 1, File1); |
| Actual2 = fread (&Char2, 1, 1, File2); |
| Offset = sizeof (ACPI_TABLE_HEADER); |
| |
| while ((Actual1 == 1) && (Actual2 == 1)) |
| { |
| if (Char1 != Char2) |
| { |
| printf ("Error - Byte mismatch at offset %8.8X: 0x%2.2X 0x%2.2X\n", |
| Offset, Char1, Char2); |
| Mismatches++; |
| if (Mismatches > 100) |
| { |
| printf ("100 Mismatches: Too many mismatches\n"); |
| goto Exit2; |
| } |
| } |
| |
| Offset++; |
| Actual1 = fread (&Char1, 1, 1, File1); |
| Actual2 = fread (&Char2, 1, 1, File2); |
| } |
| |
| if (Actual1) |
| { |
| printf ("Error - file %s is longer than file %s\n", File1Path, File2Path); |
| Mismatches++; |
| } |
| else if (Actual2) |
| { |
| printf ("Error - file %s is shorter than file %s\n", File1Path, File2Path); |
| Mismatches++; |
| } |
| else if (!Mismatches) |
| { |
| if (HeaderMismatch) |
| { |
| printf ("Files compare exactly after header\n"); |
| } |
| else |
| { |
| printf ("Files compare exactly\n"); |
| } |
| } |
| |
| printf ("%u Mismatches found\n", Mismatches); |
| Status = 0; |
| |
| Exit2: |
| fclose (File2); |
| |
| Exit1: |
| fclose (File1); |
| return (Status); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AbGetFile |
| * |
| * DESCRIPTION: Open a file and read it entirely into a new buffer |
| * |
| ******************************************************************************/ |
| |
| static char * |
| AbGetFile ( |
| char *Filename, |
| UINT32 *FileSize) |
| { |
| FILE *File; |
| UINT32 Size; |
| char *Buffer = NULL; |
| size_t Actual; |
| |
| |
| /* Binary mode does not alter CR/LF pairs */ |
| |
| File = fopen (Filename, "rb"); |
| if (!File) |
| { |
| printf ("Could not open file %s\n", Filename); |
| return (NULL); |
| } |
| |
| /* Need file size to allocate a buffer */ |
| |
| Size = CmGetFileSize (File); |
| if (Size == ACPI_UINT32_MAX) |
| { |
| printf ("Could not get file size (seek) for %s\n", Filename); |
| goto ErrorExit; |
| } |
| |
| /* Allocate a buffer for the entire file */ |
| |
| Buffer = calloc (Size, 1); |
| if (!Buffer) |
| { |
| printf ("Could not allocate buffer of size %u\n", Size); |
| goto ErrorExit; |
| } |
| |
| /* Read the entire file */ |
| |
| Actual = fread (Buffer, 1, Size, File); |
| if (Actual != Size) |
| { |
| printf ("Could not read the input file %s\n", Filename); |
| free (Buffer); |
| Buffer = NULL; |
| goto ErrorExit; |
| } |
| |
| *FileSize = Size; |
| |
| ErrorExit: |
| fclose (File); |
| return (Buffer); |
| } |
| |
| |
| /****************************************************************************** |
| * |
| * FUNCTION: AbDumpAmlFile |
| * |
| * DESCRIPTION: Dump a binary AML file to a text file |
| * |
| ******************************************************************************/ |
| |
| int |
| AbDumpAmlFile ( |
| char *File1Path, |
| char *File2Path) |
| { |
| char *FileBuffer; |
| FILE *FileOutHandle; |
| UINT32 FileSize = 0; |
| int Status = -1; |
| |
| |
| /* Get the entire AML file, validate header */ |
| |
| FileBuffer = AbGetFile (File1Path, &FileSize); |
| if (!FileBuffer) |
| { |
| return (-1); |
| } |
| |
| printf ("Input file: %s contains %u (0x%X) bytes\n", |
| File1Path, FileSize, FileSize); |
| |
| FileOutHandle = fopen (File2Path, "wb"); |
| if (!FileOutHandle) |
| { |
| printf ("Could not open file %s\n", File2Path); |
| goto Exit1; |
| } |
| |
| if (!AbValidateHeader ((ACPI_TABLE_HEADER *) FileBuffer)) |
| { |
| goto Exit2; |
| } |
| |
| /* 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); |
| |
| AcpiUtDumpBuffer ((UINT8 *) FileBuffer, FileSize, DB_BYTE_DISPLAY, 0); |
| |
| /* Summary for the output file */ |
| |
| FileSize = CmGetFileSize (FileOutHandle); |
| printf ("Output file: %s contains %u (0x%X) bytes\n\n", |
| File2Path, FileSize, FileSize); |
| |
| Status = 0; |
| |
| Exit2: |
| fclose (FileOutHandle); |
| |
| Exit1: |
| free (FileBuffer); |
| return (Status); |
| } |