diff options
Diffstat (limited to 'qemu/roms/SLOF/romfs/tools/create_crc.c')
| -rw-r--r-- | qemu/roms/SLOF/romfs/tools/create_crc.c | 467 |
1 files changed, 0 insertions, 467 deletions
diff --git a/qemu/roms/SLOF/romfs/tools/create_crc.c b/qemu/roms/SLOF/romfs/tools/create_crc.c deleted file mode 100644 index 51f137d8e..000000000 --- a/qemu/roms/SLOF/romfs/tools/create_crc.c +++ /dev/null @@ -1,467 +0,0 @@ -/****************************************************************************** - * Copyright (c) 2004, 2008 IBM Corporation - * All rights reserved. - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Contributors: - * IBM Corporation - initial implementation - *****************************************************************************/ - -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <netinet/in.h> -#include <fcntl.h> -#include <string.h> -#include <unistd.h> -#include <cfgparse.h> -#include <time.h> -#include <calculatecrc.h> -#include <product.h> -#include "createcrc.h" - -int createHeaderImage(int); -unsigned int calCRCEthernet32(unsigned char *TextPtr, - unsigned long int TextLength, - unsigned int AccumCRC); -int createCRCParameter(uint64_t * ui64RegisterMask, - unsigned int *iRegisterLength); -uint64_t calCRCbyte(unsigned char *TextPtr, uint32_t Residual, - uint64_t AccumCRC); -uint64_t calCRCword(unsigned char *TextPtr, uint32_t Residual, - uint64_t AccumCRC); -uint64_t checkCRC(unsigned char *TextPtr, uint32_t Residual, uint64_t AccumCRC); - -/* file length in bytes */ -static uint64_t ui64globalFileSize = 0; -/* space for the file stream >= 4MB + 4bytes */ -static unsigned char pucFileStream[4400000]; -/* header length in bytes */ -static uint64_t ui64globalHeaderSize = 0; -/* flag to filter detect the header in buildDataStream() */ -static int iglobalHeaderFlag = 1; -static uint64_t ui64Generator1; - -/** - * Build the file image and store it as Data Stream of bytes - * calculate a first CRC for the first file and - * catch the position of this CRC - */ -int -buildDataStream(unsigned char *pucbuf, int size) -{ - if (ui64globalFileSize + size > sizeof(pucFileStream)) { - printf("Error: File size is too big!\n"); - return -1; - } - - /* copy the data into the destination buffer */ - memcpy(pucFileStream + ui64globalFileSize, pucbuf, size); - ui64globalFileSize += size; - - if (iglobalHeaderFlag == 1) { // catch header - - ui64globalHeaderSize = ui64globalFileSize; - iglobalHeaderFlag = 0; - } - - return 0; -} - -/** - * write Header.img - */ -int -createHeaderImage(int notime) -{ - int iCounter; - uint64_t ui64RomAddr, ui64DataAddr; - time_t caltime; - struct tm *tm; - char *pcVersion; - char dastr[16] = { 0, }; - unsigned long long da = 0; - - union { - unsigned char pcArray[FLASHFS_HEADER_DATA_SIZE]; - struct stH stHeader; - } uHeader; - - /* initialize Header */ - memset(uHeader.pcArray, 0x00, FLASHFS_HEADER_DATA_SIZE); - - /* read driver info */ - if (NULL != (pcVersion = getenv("DRIVER_NAME"))) { - strncpy(uHeader.stHeader.version, pcVersion, 16); - } else if (NULL != (pcVersion = getenv("USER"))) { - strncpy(uHeader.stHeader.version, pcVersion, 16); - } else if (pcVersion == NULL) { - strncpy(uHeader.stHeader.version, "No known user!", 16); - } - - if (!notime) { - /* read time and write it into data stream */ - if ((caltime = time(NULL)) == -1) { - printf("time error\n"); - } - if ((tm = localtime(&caltime)) == NULL) { - printf("local time error\n"); - } - // length must be 13 instead 12 because of terminating - // NUL. Therefore uH.stH.platform_revison must be - // written later to overwrite the terminating NUL - if (strftime(dastr, 15, "0x%Y%m%d%H%M", tm) == 0) { - printf("strftime error\n"); - } - da = cpu_to_be64(strtoll(dastr, NULL, 16)); - } - memcpy(uHeader.stHeader.date, &da, 8); - - /* write Magic value into data stream */ - strncpy(uHeader.stHeader.magic, FLASHFS_MAGIC, 8); - /* write platform name into data stream */ - strcpy(uHeader.stHeader.platform_name, FLASHFS_PLATFORM_MAGIC); - /* write platform revision into data stream */ - strcpy(uHeader.stHeader.platform_revision, FLASHFS_PLATFORM_REVISION); - - - /* fill end of file info (8 bytes of FF) into data stream */ - uHeader.stHeader.ui64FileEnd = -1; - - /* read address of next file and address of header date, both are 64 bit values */ - ui64RomAddr = 0; - ui64DataAddr = 0; - for (iCounter = 0; iCounter < 8; iCounter++) { - /* addr of next file */ - ui64RomAddr = (ui64RomAddr << 8) + pucFileStream[FLASHFS_ROMADDR + iCounter]; - /* addr of header data */ - ui64DataAddr = (ui64DataAddr << 8) + pucFileStream[FLASHFS_DATADDR + iCounter]; - } - - /* calculate final flash-header-size and flash-file-size */ - /* calculate end addr of header */ - ui64globalHeaderSize = (uint32_t) ui64DataAddr + (uint32_t) FLASHFS_HEADER_DATA_SIZE; - /* cut 64 bit to place CRC for File-End */ - ui64globalHeaderSize -= 8; - /* add 64 bit to place CRC behind File-End */ - ui64globalFileSize += 8; - - if (ui64globalHeaderSize >= ui64RomAddr) { - printf("%s\n", "--- Header File to long"); - return 1; - } - - /* fill free space in Header with zeros */ - memset(&pucFileStream[ui64DataAddr], 0, (ui64RomAddr - ui64DataAddr)); - /* place data to header */ - memcpy(&pucFileStream[ui64DataAddr], uHeader.pcArray, - FLASHFS_HEADER_DATA_SIZE); - - /* insert header length into data stream */ - *(uint64_t *) (pucFileStream + FLASHFS_HEADER_SIZE_ADDR) = - cpu_to_be64(ui64globalHeaderSize); - - /* insert flash length into data stream */ - *(uint64_t *) (pucFileStream + ui64DataAddr + FLASHFS_FILE_SIZE_ADDR) = - cpu_to_be64(ui64globalFileSize); - - /* insert zeros as placeholder for CRC */ - *(uint64_t *) (pucFileStream + ui64globalHeaderSize - 8) = 0; - *(uint64_t *) (pucFileStream + ui64globalFileSize - 8) = 0; - - return 0; -} - -/** - * calculate standart ethernet 32 bit CRC - * generator polynome is 0x104C11DB7 - * this algorithm can be used for encoding and decoding - */ -unsigned int -calCRCEthernet32(unsigned char *TextPtr, unsigned long int TextLength, - unsigned int AccumCRC) -{ - const unsigned int CrcTableHigh[16] = { - 0x00000000, 0x4C11DB70, 0x9823B6E0, 0xD4326D90, - 0x34867077, 0x7897AB07, 0xACA5C697, 0xE0B41DE7, - 0x690CE0EE, 0x251D3B9E, 0xF12F560E, 0xBD3E8D7E, - 0x5D8A9099, 0x119B4BE9, 0xC5A92679, 0x89B8FD09 - }; - const unsigned CrcTableLow[16] = { - 0x00000000, 0x04C11DB7, 0x09823B6E, 0x0D4326D9, - 0x130476DC, 0x17C56B6B, 0x1A864DB2, 0x1E475005, - 0x2608EDB8, 0x22C9F00F, 0x2F8AD6D6, 0x2B4BCB61, - 0x350C9B64, 0x31CD86D3, 0x3C8EA00A, 0x384FBDBD - }; - - unsigned char *Buffer = TextPtr; - unsigned long int Residual = TextLength; - - - while (Residual > 0) { - unsigned int Temp = ((AccumCRC >> 24) ^ *Buffer) & 0x000000ff; - AccumCRC <<= 8; - AccumCRC ^= CrcTableHigh[Temp / 16]; - AccumCRC ^= CrcTableLow[Temp % 16]; - ++Buffer; - --Residual; - } - return AccumCRC; -} - -/** - * create CRC Parameter: CRC Polynome, Shiftregister Mask and length - * - * ui64Generator[0] = 0; - * ui64Generator[1] = 0x42F0E1EB; - * ui64Generator[1] = (ui64Generator[1] << 32) + 0xA9EA3693; - * iRegisterLength = 63; - * ui64RegisterMask = 0xffffffff; - * ui64RegisterMask = ((ui64RegisterMask) << 32) + 0xffffffff; - * - * ucl=0x00000000ffffffff = Mask for 32 bit LSFR to cut down number of bits - * in the variable to get the same length as LFSR - * - * il = length of LSFR = degree of generator polynom reduce il by one to calculate the degree - * of the highest register in LSFR - * - * Examples: - * CRC-16 for Tap: x16 + x15 + x2 + 1 - * generator = 0x8005, il = 16, ucl = 0x000000000000FFFF - * - * CRC-16 for Floppy: x16 + x12 + x5 +1 - * generator = 0x1021, il = 16, ucl = 0x000000000000FFFF - * - * CRC-32 for Ethernet: x32 + x26 + x23 + x22 + x16 + x12 + x11 + x10 + x8 + x7 + x5 + x4 + x2 + x + 1 - * generator = 0x04C11DB7, il = 32, ucl = 0x00000000FFFFFFFF - * - * CRC-64 SP-TrEMBL x64 + x4 + x3 + x + 1 (maximal-length LFSR) - * generator = 0x1B, il = 64, ucl = 0xFFFFFFFFFFFFFFFF - * - * CRC-64 improved - * x64 + x63 + x61 + x59 + x58 + x56 + x55 + x52 + x49 + x48 + x47 + x46+ x44 + - * x41 + x37 + x36 + x34 + x32 + x31 + x28 + x26 + x23 + x22 + x19 + x16 + x13 + - * x12 + x10 + x9 + x6 + x4 + x3 + 1 - * (see http://www.cs.ud.ac.uk/staff/D.Jones/crcbote.pdf) - * generator = 0xAD93D23594C9362D, il = 64, ucl = 0xFFFFFFFFFFFFFFFF - * - * CRC-64 DLT1 spec - * x64 + x62 + x57 + x55 + x54 + x53 + x52 + x47 + x46 + x45 + x40 + x39 + x38 + x37 + - * x35 + x33 + x32 + x31 + x29 + x27 + x24 + x23 + x22 + x21 + x19 + x17 + x13 + x12 + - * x10 + x9 + x7 + x4 + x + 1 - * (see http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-182.pdf -> page63) - * generator = 0x42F0E1EBA9EA3693 - * - * CRC-64 from internet G(x)= 1006003C000F0D50B - */ -int -createCRCParameter(uint64_t * ui64RegisterMask, unsigned int *uiRegisterLength) -{ - enum Generators { Tape_16, Floppy_16, Ethernet_32, SPTrEMBL_64, - SPTrEMBL_improved_64, DLT1_64 - }; - enum Generators Generator; - - Generator = CRC_METHODE; - switch (Generator) { - case Tape_16:{ - *ui64RegisterMask = 0x0000ffff; - ui64Generator1 = 0x00008005; - *uiRegisterLength = 16; - break; - } - case Floppy_16:{ - *ui64RegisterMask = 0x0000ffff; - ui64Generator1 = 0x00001021; - *uiRegisterLength = 16; - break; - } - case Ethernet_32:{ - *ui64RegisterMask = 0xffffffff; - ui64Generator1 = 0x04C11DB7; - *uiRegisterLength = 32; - break; - } - case SPTrEMBL_64:{ - *ui64RegisterMask = 0xffffffff; - *ui64RegisterMask = - ((*ui64RegisterMask) << 32) + 0xffffffff; - ui64Generator1 = 0x0000001B; - *uiRegisterLength = 64; - break; - } - case SPTrEMBL_improved_64:{ - *ui64RegisterMask = 0xffffffff; - *ui64RegisterMask = - ((*ui64RegisterMask) << 32) + 0xffffffff; - ui64Generator1 = 0xAD93D235; - ui64Generator1 = (ui64Generator1 << 32) + 0x94C9362D; - *uiRegisterLength = 64; - break; - } - case DLT1_64:{ - *ui64RegisterMask = 0xffffffff; - *ui64RegisterMask = - ((*ui64RegisterMask) << 32) + 0xffffffff; - ui64Generator1 = 0x42F0E1EB; - ui64Generator1 = (ui64Generator1 << 32) + 0xA9EA3693; - *uiRegisterLength = 64; - break; - } - } - (*uiRegisterLength)--; - - return 0; -} - -/** - * Check CRC by using Linear Feadback Shift Register (LFSR) - */ -uint64_t -calCRCbyte(unsigned char *cPtr, uint32_t ui32NoWords, uint64_t AccumCRC) -{ - - uint64_t ui64Mask, ui64Generator0; - uint8_t ui8Buffer; - unsigned int uiRegisterLength; - int iShift; - - createCRCParameter(&ui64Mask, &uiRegisterLength); - - ui8Buffer = (*cPtr); - while (ui32NoWords > 0) { - for (iShift = 7; iShift >= 0; iShift--) { - - ui64Generator0 = (AccumCRC >> uiRegisterLength); - AccumCRC <<= 1; - ui64Generator0 &= 0x01; - ui64Generator0 = (0 - ui64Generator0); - AccumCRC ^= (ui64Generator1 & ui64Generator0); - } - AccumCRC ^= ui8Buffer; - AccumCRC &= ui64Mask; - ui32NoWords -= 1; - cPtr += 1; - ui8Buffer = (*cPtr); - } - return AccumCRC; -} - -/** - * Check CRC by using Linear Feadback Shift Register (LFSR) - */ -uint64_t -calCRCword(unsigned char *cPtr, uint32_t ui32NoWords, uint64_t AccumCRC) -{ - - uint64_t ui64Mask, ui64Generator0; - uint16_t ui16Buffer; - unsigned int uiRegisterLength; - int iShift; - - createCRCParameter(&ui64Mask, &uiRegisterLength); - - if ((ui32NoWords % 2) != 0) { - /* if Data string does not end at word boundery add one byte */ - ui32NoWords++; - cPtr[ui32NoWords] = 0; - } - ui16Buffer = ((*(cPtr + 0)) * 256) + (*(cPtr + 1)); - while (ui32NoWords > 0) { - for (iShift = 15; iShift >= 0; iShift--) { - ui64Generator0 = (AccumCRC >> uiRegisterLength); - AccumCRC <<= 1; - ui64Generator0 &= 0x01; - ui64Generator0 = (0 - ui64Generator0); - AccumCRC ^= (ui64Generator1 & ui64Generator0); - } - AccumCRC ^= ui16Buffer; - AccumCRC &= ui64Mask; - ui32NoWords -= 2; - cPtr += 2; - ui16Buffer = ((*(cPtr + 0)) * 256) + (*(cPtr + 1)); - } - return AccumCRC; -} - -uint64_t -checkCRC(unsigned char *cPtr, uint32_t ui32NoWords, uint64_t AccumCRC) -{ - - enum Generators { Ethernet_32 }; - enum Generators Generator; - uint64_t ui64Buffer = AccumCRC; - - Generator = CRC_METHODE; - - switch (Generator) { - case Ethernet_32:{ - /* (ui32NoWords - 4),no need of 4 bytes 0x as - * with shift-register method */ - AccumCRC = - calCRCEthernet32(cPtr, (ui32NoWords - 4), AccumCRC); - break; - } - default:{ - AccumCRC = calCRCword(cPtr, ui32NoWords, AccumCRC); - break; - } - } - - if (calCRCbyte(cPtr, ui32NoWords, ui64Buffer) != AccumCRC) { - printf("\n --- big Endian - small Endian problem --- \n"); - AccumCRC--; - } - - return (AccumCRC); -} - -/** - * insert header and file CRC into data stream - * do CRC check on header and file - * write data stream to disk - */ -int -writeDataStream(int iofd, int notime) -{ - uint64_t ui64FileCRC = 0, ui64HeaderCRC = 0, ui64RegisterMask; - unsigned int uiRegisterLength; - - if (0 != createHeaderImage(notime)) { - return 1; - } - - createCRCParameter(&ui64RegisterMask, &uiRegisterLength); - - /* calculate CRC */ - ui64HeaderCRC = checkCRC(pucFileStream, ui64globalHeaderSize, 0); - *(uint64_t *) (pucFileStream + ui64globalHeaderSize - 8) = - cpu_to_be64(ui64HeaderCRC); - - ui64FileCRC = checkCRC(pucFileStream, ui64globalFileSize, 0); - *(uint64_t *) (pucFileStream + ui64globalFileSize - 8) = - cpu_to_be64(ui64FileCRC); - - /* check CRC-implementation */ - ui64HeaderCRC = calCRCword(pucFileStream, ui64globalHeaderSize, 0); - ui64FileCRC = calCRCword(pucFileStream, ui64globalFileSize, 0); - - if ((ui64HeaderCRC != 0) || (ui64FileCRC != 0)) { - printf("\n\n %s \n %s \n\n", "CRCs not correct implemented.", - " ---> Data will not be written do disk."); - return -1; - } - - /* write file image to disk */ - if (0 < write(iofd, pucFileStream, ui64globalFileSize)) - return 0; - - printf("<< write failed >>\n"); - return -1; -} |