| /****************************************************************************** |
| * |
| * Module Name: axutils - Utility functions for acpixtract tool. |
| * |
| *****************************************************************************/ |
| |
| /* |
| * Copyright (C) 2000 - 2020, 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. |
| * |
| * 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 "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 <space>. |
| * |
| ******************************************************************************/ |
| |
| 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: <sig> @ <addr>). |
| * |
| ******************************************************************************/ |
| |
| 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 <sig> @ <addr>. |
| * 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: |
| * <offset>: <up to 16 bytes of hex data> <ASCII representation> <newline> |
| * |
| * 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 |
