/****************************************************************************** * * Module Name: axutils - Utility functions for acpixtract tool. * *****************************************************************************/ /****************************************************************************** * * 1. Copyright Notice * * Some or all of this work - Copyright (c) 1999 - 2021, Intel Corp. * All rights reserved. * * 2. License * * 2.1. This is your license from Intel Corp. under its intellectual property * rights. You may have additional license terms from the party that provided * you this software, covering your right to use that party's intellectual * property rights. * * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a * copy of the source code appearing in this file ("Covered Code") an * irrevocable, perpetual, worldwide license under Intel's copyrights in the * base code distributed originally by Intel ("Original Intel Code") to copy, * make derivatives, distribute, use and display any portion of the Covered * Code in any form, with the right to sublicense such rights; and * * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent * license (with the right to sublicense), under only those claims of Intel * patents that are infringed by the Original Intel Code, to make, use, sell, * offer to sell, and import the Covered Code and derivative works thereof * solely to the minimum extent necessary to exercise the above copyright * license, and in no event shall the patent license extend to any additions * to or modifications of the Original Intel Code. No other license or right * is granted directly or by implication, estoppel or otherwise; * * The above copyright and patent license is granted only if the following * conditions are met: * * 3. Conditions * * 3.1. Redistribution of Source with Rights to Further Distribute Source. * Redistribution of source code of any substantial portion of the Covered * Code or modification with rights to further distribute source must include * the above Copyright Notice, the above License, this list of Conditions, * and the following Disclaimer and Export Compliance provision. In addition, * Licensee must cause all Covered Code to which Licensee contributes to * contain a file documenting the changes Licensee made to create that Covered * Code and the date of any change. Licensee must include in that file the * documentation of any changes made by any predecessor Licensee. Licensee * must include a prominent statement that the modification is derived, * directly or indirectly, from Original Intel Code. * * 3.2. Redistribution of Source with no Rights to Further Distribute Source. * Redistribution of source code of any substantial portion of the Covered * Code or modification without rights to further distribute source must * include the following Disclaimer and Export Compliance provision in the * documentation and/or other materials provided with distribution. In * addition, Licensee may not authorize further sublicense of source of any * portion of the Covered Code, and must include terms to the effect that the * license from Licensee to its licensee is limited to the intellectual * property embodied in the software Licensee provides to its licensee, and * not to intellectual property embodied in modifications its licensee may * make. * * 3.3. Redistribution of Executable. Redistribution in executable form of any * substantial portion of the Covered Code or modification must reproduce the * above Copyright Notice, and the following Disclaimer and Export Compliance * provision in the documentation and/or other materials provided with the * distribution. * * 3.4. Intel retains all right, title, and interest in and to the Original * Intel Code. * * 3.5. Neither the name Intel nor any other trademark owned or controlled by * Intel shall be used in advertising or otherwise to promote the sale, use or * other dealings in products derived from or relating to the Covered Code * without prior written authorization from Intel. * * 4. Disclaimer and Export Compliance * * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A * PARTICULAR PURPOSE. * * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY * LIMITED REMEDY. * * 4.3. Licensee shall not export, either directly or indirectly, any of this * software or system incorporating such software without first obtaining any * required license or other approval from the U. S. Department of Commerce or * any other agency or department of the United States Government. In the * event Licensee exports any such software from the United States or * re-exports any such software from a foreign destination, Licensee shall * ensure that the distribution and export/re-export of the software is in * compliance with all laws, regulations, orders, or other restrictions of the * U.S. Export Administration Regulations. Licensee agrees that neither it nor * any of its subsidiaries will export/re-export any technical data, process, * software, or service, directly or indirectly, to any country for which the * United States government or any agency thereof requires an export license, * other governmental approval, or letter of assurance, without first obtaining * such license, approval or letter. * ***************************************************************************** * * Alternatively, you may choose to be licensed under the terms of the * following license: * * 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. * * 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 MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * 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 DAMAGE. * * Alternatively, you may choose to be licensed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * *****************************************************************************/ #include "acpixtract.h" /******************************************************************************* * * FUNCTION: AxCheckAscii * * PARAMETERS: Name - Ascii string, at least as long as Count * Count - Number of characters to check * * RETURN: None * * DESCRIPTION: Ensure that the requested number of characters are printable * Ascii characters. Sets non-printable and null chars to . * ******************************************************************************/ void AxCheckAscii ( char *Name, int Count) { int i; for (i = 0; i < Count; i++) { if (!Name[i] || !isprint ((int) Name[i])) { Name[i] = ' '; } } } /******************************************************************************* * * FUNCTION: AxIsFileAscii * * PARAMETERS: Handle - To open input file * * RETURN: TRUE if file is entirely ASCII and printable * * DESCRIPTION: Verify that the input file is entirely ASCII. * ******************************************************************************/ BOOLEAN AxIsFileAscii ( FILE *Handle) { UINT8 Byte; UINT32 Offset = 0; /* Read the entire file */ fseek (Handle, 0, SEEK_SET); while (fread (&Byte, 1, 1, Handle) == 1) { /* * Ignore null characters. Some acpidump-type utilities insert * a few of these, probably a bug in the utility. As long as these * characters are in lines that are tossed (non-data), they * won't cause a problem. */ if (!Byte) { continue; } /* Check for an ASCII character */ if (!ACPI_IS_ASCII (Byte)) { printf ("Found non-ascii char: %2.2X at file offset %u (0x%X)\n", Byte, Offset, Offset); if (!Gbl_ForceExtraction) { goto ErrorExit; } } /* Ensure character is either printable or a "space" char */ else if (!isprint (Byte) && !isspace (Byte)) { printf ("Found non-printable char: %2.2X at file offset %u (0x%X)\n", Byte, Offset, Offset); if (!Gbl_ForceExtraction) { goto ErrorExit; } } Offset++; } /* File is OK (100% ASCII) */ fseek (Handle, 0, SEEK_SET); return (TRUE); ErrorExit: printf ("File appears to be binary " "(contains non-text or non-ascii characters)\n"); fseek (Handle, 0, SEEK_SET); return (FALSE); } /****************************************************************************** * * FUNCTION: AxIsEmptyLine * * PARAMETERS: Buffer - Line from input file * * RETURN: TRUE if line is empty (zero or more blanks only) * * DESCRIPTION: Determine if an input line is empty. * ******************************************************************************/ BOOLEAN AxIsEmptyLine ( char *Buffer) { /* Skip all spaces */ while (*Buffer == ' ') { Buffer++; } /* Line is empty when a Unix or DOS-style line terminator is found. */ if ((*Buffer == '\r') || (*Buffer == '\n')) { return (1); } return (0); } /****************************************************************************** * * FUNCTION: AxIsHexDataLine * * PARAMETERS: None * * RETURN: Status. 1 if the table header is valid, 0 otherwise. * * DESCRIPTION: Check for a valid line of hex data of the form: * * 00a0: 0c 00 00 00 03 00 00 00 43 48 41 35 0c 00 00 00 ........CHA5.... * ******************************************************************************/ BOOLEAN AxIsHexDataLine ( void) { if (AxIsEmptyLine (Gbl_LineBuffer) || (Gbl_LineBuffer[0] != ' ')) { return (FALSE); } if (!strstr (Gbl_LineBuffer, ": ")) { /* Not valid data line */ return (FALSE); } return (TRUE); } /****************************************************************************** * * FUNCTION: AxIsDataBlockHeader * * PARAMETERS: None * * RETURN: Status. 1 if the table header is valid, 0 otherwise. * * DESCRIPTION: Check if the ACPI table identifier in the input acpidump text * file is valid (of the form: @ ). * ******************************************************************************/ BOOLEAN AxIsDataBlockHeader ( void) { /* Ignore lines that are too short to be header lines */ if (strlen (Gbl_LineBuffer) < AX_MIN_BLOCK_HEADER_LENGTH) { return (FALSE); } /* Ignore empty lines and lines that start with a space */ if (AxIsEmptyLine (Gbl_LineBuffer) || (Gbl_LineBuffer[0] == ' ')) { return (FALSE); } /* * Ignore lines that are not headers of the form @ . * Basically, just look for the '@' symbol, surrounded by spaces. * * Examples of headers that must be supported: * * DSDT @ 0x737e4000 * XSDT @ 0x737f2fff * RSD PTR @ 0xf6cd0 * SSDT @ (nil) */ if (!AX_IS_TABLE_BLOCK_HEADER) { return (FALSE); } AxNormalizeSignature (Gbl_LineBuffer); return (TRUE); } /******************************************************************************* * * FUNCTION: AxNormalizeSignature * * PARAMETERS: Name - Ascii string containing an ACPI signature * * RETURN: None * * DESCRIPTION: Change "RSD PTR" to "RSDP" * ******************************************************************************/ void AxNormalizeSignature ( char *Signature) { if (!strncmp (Signature, "RSD ", 4)) { Signature[3] = 'P'; } } /****************************************************************************** * * FUNCTION: AxConvertToBinary * * PARAMETERS: InputLine - One line from the input acpidump file * OutputData - Where the converted data is returned * * RETURN: The number of bytes actually converted * * DESCRIPTION: Convert one line of ascii text binary (up to 16 bytes) * * NOTE: Assumes the input data line has been validated to be of the form: * * 0010: 48 53 57 55 4c 54 2d 52 01 00 00 00 49 4e 54 4c HSWULT-R....INTL * ******************************************************************************/ int AxConvertToBinary ( char *InputLine, unsigned char *OutputData) { char *ColonDelimiter; int BytesConverted; int Converted[16]; int i; /* * Terminate input line immediately after the data. Otherwise, the * second line below will not scan correctly. * * This handles varying lengths for the offset: line prefix. This support * for tables larger than 1mb was added 05/2018. * * 00b0: 03 00 00 00 43 48 41 36 0c 00 00 00 03 00 00 00 ....CHA6........ * 00c0: 43 48 41 37 CHA7 * * 012340b0: 03 00 00 00 43 48 41 36 0c 00 00 00 03 00 00 00 ....CHA6........ * 012340c0: 43 48 41 37 CHA7 */ ColonDelimiter = strchr (InputLine, ':'); ColonDelimiter [AX_HEX_DATA_LENGTH] = 0; /* * Convert one line of table data, of the form: * : * * Example: * 02C0: 5F 53 42 5F 4C 4E 4B 44 00 12 13 04 0C FF FF 08 _SB_LNKD........ */ BytesConverted = sscanf (InputLine, "%*s %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X", &Converted[0], &Converted[1], &Converted[2], &Converted[3], &Converted[4], &Converted[5], &Converted[6], &Converted[7], &Converted[8], &Converted[9], &Converted[10], &Converted[11], &Converted[12], &Converted[13], &Converted[14], &Converted[15]); if (BytesConverted == EOF) { printf ("EOF while converting ASCII line to binary\n"); return (-1); } /* * Pack converted data into a byte array. * Note: BytesConverted == 0 is acceptable. */ for (i = 0; i < BytesConverted; i++) { OutputData[i] = (unsigned char) Converted[i]; } return (BytesConverted); } /****************************************************************************** * * FUNCTION: AxCountTableInstances * * PARAMETERS: InputPathname - Filename for acpidump file * Signature - Requested signature to count * * RETURN: The number of instances of the signature * * DESCRIPTION: Count the instances of tables with the given signature within * the input acpidump file. * ******************************************************************************/ unsigned int AxCountTableInstances ( char *InputPathname, char *Signature) { FILE *InputFile; unsigned int Instances = 0; InputFile = fopen (InputPathname, "r"); if (!InputFile) { printf ("Could not open input file %s\n", InputPathname); return (0); } /* Count the number of instances of this signature */ while (fgets (Gbl_InstanceBuffer, AX_LINE_BUFFER_SIZE, InputFile)) { /* Ignore empty lines and lines that start with a space */ if (AxIsEmptyLine (Gbl_InstanceBuffer) || (Gbl_InstanceBuffer[0] == ' ')) { continue; } AxNormalizeSignature (Gbl_InstanceBuffer); if (ACPI_COMPARE_NAMESEG (Gbl_InstanceBuffer, Signature)) { Instances++; } } fclose (InputFile); return (Instances); } /****************************************************************************** * * FUNCTION: AxGetNextInstance * * PARAMETERS: InputPathname - Filename for acpidump file * Signature - Requested ACPI signature * * RETURN: The next instance number for this signature. Zero if this * is the first instance of this signature. * * DESCRIPTION: Get the next instance number of the specified table. If this * is the first instance of the table, create a new instance * block. Note: only SSDT and PSDT tables can have multiple * instances. * ******************************************************************************/ unsigned int AxGetNextInstance ( char *InputPathname, char *Signature) { AX_TABLE_INFO *Info; Info = Gbl_TableListHead; while (Info) { if (*(UINT32 *) Signature == Info->Signature) { break; } Info = Info->Next; } if (!Info) { /* Signature not found, create new table info block */ Info = malloc (sizeof (AX_TABLE_INFO)); if (!Info) { printf ("Could not allocate memory (0x%X bytes)\n", (unsigned int) sizeof (AX_TABLE_INFO)); exit (0); } Info->Signature = *(UINT32 *) Signature; Info->Instances = AxCountTableInstances (InputPathname, Signature); Info->NextInstance = 1; Info->Next = Gbl_TableListHead; Gbl_TableListHead = Info; } if (Info->Instances > 1) { return (Info->NextInstance++); } return (0); } /****************************************************************************** * * FUNCTION: AxConvertAndWrite * * PARAMETERS: OutputFile - Where to write the binary data * ThisSignature - Signature of current ACPI table * * RETURN: Length of the converted line * * DESCRIPTION: Convert one line of input hex ascii text to binary, and write * the binary data to the table output file. * * NOTE: Assumes the input data line has been validated to be of the form: * * 0010: 48 53 57 55 4c 54 2d 52 01 00 00 00 49 4e 54 4c HSWULT-R....INTL * ******************************************************************************/ int AxConvertAndWrite ( FILE *OutputFile, char *ThisSignature) { int BytesWritten; int BytesConverted; /* Convert one line of ascii hex data to binary */ BytesConverted = AxConvertToBinary (Gbl_LineBuffer, Gbl_BinaryData); if (BytesConverted == EOF) { return (EOF); } if (!BytesConverted) { return (0); } /* Write the binary data */ BytesWritten = fwrite (Gbl_BinaryData, 1, BytesConverted, OutputFile); if (BytesWritten != BytesConverted) { printf ("Error while writing file %s\n", Gbl_OutputFilename); return (-1); } return (BytesWritten); } /****************************************************************************** * * FUNCTION: AxDumpTableHeader * * PARAMETERS: Header - A binary ACPI table header * * RETURN: None * * DESCRIPTION: Display the contents of a standard ACPI table header * ******************************************************************************/ void AxDumpTableHeader ( unsigned char *Header) { ACPI_TABLE_HEADER *TableHeader = (ACPI_TABLE_HEADER *) (void *) Header; ACPI_TABLE_RSDP *Rsdp = (ACPI_TABLE_RSDP *) (void *) Header; ACPI_TABLE_FACS *Facs = (ACPI_TABLE_FACS *) (void *) Header; /* RSDP has an oddball signature and header */ if (!strncmp (TableHeader->Signature, "RSD PTR ", 8)) { AxCheckAscii ((char *) &Header[9], 6); Gbl_TableCount++; printf (" %.2u) %5.4s 0x%8.8X 0x%2.2X \"%6.6s\"\n", Gbl_TableCount, "RSDP", Rsdp->Length, Rsdp->Revision, Rsdp->OemId); return; } if (!AcpiUtValidNameseg (TableHeader->Signature)) { return; } /* Signature and Table length */ Gbl_TableCount++; printf (" %.2u) %5.4s 0x%8.8X", Gbl_TableCount, TableHeader->Signature, TableHeader->Length); /* FACS has only signature and length */ if (ACPI_COMPARE_NAMESEG (TableHeader->Signature, "FACS")) { printf (" 0x%2.2X\n", Facs->Version); return; } /* OEM IDs and Compiler IDs */ AxCheckAscii (TableHeader->OemId, 6); AxCheckAscii (TableHeader->OemTableId, 8); AxCheckAscii (TableHeader->AslCompilerId, 4); printf ( " 0x%2.2X \"%6.6s\" \"%8.8s\" 0x%8.8X" " \"%4.4s\" 0x%8.8X\n", TableHeader->Revision, TableHeader->OemId, TableHeader->OemTableId, TableHeader->OemRevision, TableHeader->AslCompilerId, TableHeader->AslCompilerRevision); } #ifdef _AX_FUTURE_ENHANCEMENTS /* Possible enhancement to validate table lengths */ void AxCheckTableLengths ( UINT32 ByteCount, UINT32 AmlByteCount) { if (AmlByteCount == 0) { return; } if (ByteCount == 0) { return; } if ((ByteCount < sizeof (ACPI_TABLE_HEADER)) && (ByteCount >= ACPI_NAMESEG_SIZE)) { printf (" : (Table too short for an ACPI table)"); } else if (ByteCount != AmlByteCount) { printf (" : (Hex data length mismatch with AML length 0x%X)", AmlByteCount); } printf ("\n"); } #endif