366 lines
9.9 KiB
C
366 lines
9.9 KiB
C
/******************************************************************************
|
|
*
|
|
* Module Name: aslascii - ASCII detection and support routines
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/*
|
|
* Copyright (C) 2000 - 2015, 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 <contrib/dev/acpica/compiler/aslcompiler.h>
|
|
#include <contrib/dev/acpica/include/acapps.h>
|
|
|
|
#define _COMPONENT ACPI_COMPILER
|
|
ACPI_MODULE_NAME ("aslascii")
|
|
|
|
|
|
/* Local prototypes */
|
|
|
|
static void
|
|
FlConsumeAnsiComment (
|
|
FILE *Handle,
|
|
ASL_FILE_STATUS *Status);
|
|
|
|
static void
|
|
FlConsumeNewComment (
|
|
FILE *Handle,
|
|
ASL_FILE_STATUS *Status);
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: FlCheckForAcpiTable
|
|
*
|
|
* PARAMETERS: Handle - Open input file
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Determine if a file seems to be a binary ACPI table, via the
|
|
* following checks on what would be the table header:
|
|
* 0) File must be at least as long as an ACPI_TABLE_HEADER
|
|
* 1) The header length field must match the file size
|
|
* 2) Signature, OemId, OemTableId, AslCompilerId must be ASCII
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
FlCheckForAcpiTable (
|
|
FILE *Handle)
|
|
{
|
|
ACPI_TABLE_HEADER Table;
|
|
UINT32 FileSize;
|
|
size_t Actual;
|
|
UINT32 i;
|
|
|
|
|
|
/* Read a potential table header */
|
|
|
|
Actual = fread (&Table, 1, sizeof (ACPI_TABLE_HEADER), Handle);
|
|
fseek (Handle, 0, SEEK_SET);
|
|
|
|
if (Actual < sizeof (ACPI_TABLE_HEADER))
|
|
{
|
|
return (AE_ERROR);
|
|
}
|
|
|
|
/* Header length field must match the file size */
|
|
|
|
FileSize = CmGetFileSize (Handle);
|
|
if (Table.Length != FileSize)
|
|
{
|
|
return (AE_ERROR);
|
|
}
|
|
|
|
/*
|
|
* These fields must be ASCII:
|
|
* Signature, OemId, OemTableId, AslCompilerId.
|
|
* We allow a NULL terminator in OemId and OemTableId.
|
|
*/
|
|
for (i = 0; i < ACPI_NAME_SIZE; i++)
|
|
{
|
|
if (!ACPI_IS_ASCII ((UINT8) Table.Signature[i]))
|
|
{
|
|
return (AE_ERROR);
|
|
}
|
|
|
|
if (!ACPI_IS_ASCII ((UINT8) Table.AslCompilerId[i]))
|
|
{
|
|
return (AE_ERROR);
|
|
}
|
|
}
|
|
|
|
for (i = 0; (i < ACPI_OEM_ID_SIZE) && (Table.OemId[i]); i++)
|
|
{
|
|
if (!ACPI_IS_ASCII ((UINT8) Table.OemId[i]))
|
|
{
|
|
return (AE_ERROR);
|
|
}
|
|
}
|
|
|
|
for (i = 0; (i < ACPI_OEM_TABLE_ID_SIZE) && (Table.OemTableId[i]); i++)
|
|
{
|
|
if (!ACPI_IS_ASCII ((UINT8) Table.OemTableId[i]))
|
|
{
|
|
return (AE_ERROR);
|
|
}
|
|
}
|
|
|
|
printf ("Binary file appears to be a valid ACPI table, disassembling\n");
|
|
return (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: FlCheckForAscii
|
|
*
|
|
* PARAMETERS: Filename - Full input filename
|
|
* DisplayErrors - TRUE if error messages desired
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Verify that the input file is entirely ASCII. Ignores characters
|
|
* within comments. Note: does not handle nested comments and does
|
|
* not handle comment delimiters within string literals. However,
|
|
* on the rare chance this happens and an invalid character is
|
|
* missed, the parser will catch the error by failing in some
|
|
* spectactular manner.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
FlCheckForAscii (
|
|
char *Filename,
|
|
BOOLEAN DisplayErrors)
|
|
{
|
|
UINT8 Byte;
|
|
ACPI_SIZE BadBytes = 0;
|
|
BOOLEAN OpeningComment = FALSE;
|
|
ASL_FILE_STATUS Status;
|
|
FILE *Handle;
|
|
|
|
|
|
/* Open file in text mode so file offset is always accurate */
|
|
|
|
Handle = fopen (Filename, "rb");
|
|
|
|
Status.Line = 1;
|
|
Status.Offset = 0;
|
|
|
|
/* Read the entire file */
|
|
|
|
while (fread (&Byte, 1, 1, Handle) == 1)
|
|
{
|
|
/* Ignore comment fields (allow non-ascii within) */
|
|
|
|
if (OpeningComment)
|
|
{
|
|
/* Check for second comment open delimiter */
|
|
|
|
if (Byte == '*')
|
|
{
|
|
FlConsumeAnsiComment (Handle, &Status);
|
|
}
|
|
|
|
if (Byte == '/')
|
|
{
|
|
FlConsumeNewComment (Handle, &Status);
|
|
}
|
|
|
|
/* Reset */
|
|
|
|
OpeningComment = FALSE;
|
|
}
|
|
else if (Byte == '/')
|
|
{
|
|
OpeningComment = TRUE;
|
|
}
|
|
|
|
/* Check for an ASCII character */
|
|
|
|
if (!ACPI_IS_ASCII (Byte))
|
|
{
|
|
if ((BadBytes < 10) && (DisplayErrors))
|
|
{
|
|
AcpiOsPrintf (
|
|
"Found non-ASCII character in source text: "
|
|
"0x%2.2X in line %u, file offset 0x%2.2X\n",
|
|
Byte, Status.Line, Status.Offset);
|
|
}
|
|
BadBytes++;
|
|
}
|
|
|
|
/* Ensure character is either printable or a "space" char */
|
|
|
|
else if (!isprint (Byte) && !isspace (Byte))
|
|
{
|
|
if ((BadBytes < 10) && (DisplayErrors))
|
|
{
|
|
AcpiOsPrintf (
|
|
"Found invalid character in source text: "
|
|
"0x%2.2X in line %u, file offset 0x%2.2X\n",
|
|
Byte, Status.Line, Status.Offset);
|
|
}
|
|
BadBytes++;
|
|
}
|
|
|
|
/* Update line counter as necessary */
|
|
|
|
if (Byte == 0x0A)
|
|
{
|
|
Status.Line++;
|
|
}
|
|
|
|
Status.Offset++;
|
|
}
|
|
|
|
fclose (Handle);
|
|
|
|
/* Were there any non-ASCII characters in the file? */
|
|
|
|
if (BadBytes)
|
|
{
|
|
if (DisplayErrors)
|
|
{
|
|
AcpiOsPrintf (
|
|
"Total %u invalid characters found in input source text, "
|
|
"could be a binary file\n", BadBytes);
|
|
AslError (ASL_ERROR, ASL_MSG_NON_ASCII, NULL, Filename);
|
|
}
|
|
|
|
return (AE_BAD_CHARACTER);
|
|
}
|
|
|
|
/* File is OK (100% ASCII) */
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: FlConsumeAnsiComment
|
|
*
|
|
* PARAMETERS: Handle - Open input file
|
|
* Status - File current status struct
|
|
*
|
|
* RETURN: Number of lines consumed
|
|
*
|
|
* DESCRIPTION: Step over a normal slash-star type comment
|
|
*
|
|
******************************************************************************/
|
|
|
|
static void
|
|
FlConsumeAnsiComment (
|
|
FILE *Handle,
|
|
ASL_FILE_STATUS *Status)
|
|
{
|
|
UINT8 Byte;
|
|
BOOLEAN ClosingComment = FALSE;
|
|
|
|
|
|
while (fread (&Byte, 1, 1, Handle) == 1)
|
|
{
|
|
/* Scan until comment close is found */
|
|
|
|
if (ClosingComment)
|
|
{
|
|
if (Byte == '/')
|
|
{
|
|
Status->Offset++;
|
|
return;
|
|
}
|
|
|
|
if (Byte != '*')
|
|
{
|
|
/* Reset */
|
|
|
|
ClosingComment = FALSE;
|
|
}
|
|
}
|
|
else if (Byte == '*')
|
|
{
|
|
ClosingComment = TRUE;
|
|
}
|
|
|
|
/* Maintain line count */
|
|
|
|
if (Byte == 0x0A)
|
|
{
|
|
Status->Line++;
|
|
}
|
|
|
|
Status->Offset++;
|
|
}
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: FlConsumeNewComment
|
|
*
|
|
* PARAMETERS: Handle - Open input file
|
|
* Status - File current status struct
|
|
*
|
|
* RETURN: Number of lines consumed
|
|
*
|
|
* DESCRIPTION: Step over a slash-slash type of comment
|
|
*
|
|
******************************************************************************/
|
|
|
|
static void
|
|
FlConsumeNewComment (
|
|
FILE *Handle,
|
|
ASL_FILE_STATUS *Status)
|
|
{
|
|
UINT8 Byte;
|
|
|
|
|
|
while (fread (&Byte, 1, 1, Handle) == 1)
|
|
{
|
|
Status->Offset++;
|
|
|
|
/* Comment ends at newline */
|
|
|
|
if (Byte == 0x0A)
|
|
{
|
|
Status->Line++;
|
|
return;
|
|
}
|
|
}
|
|
}
|