--- /dev/null
+/******************************************************************************
+ * 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;
+}
Code Review / kvmfornfv.git / blobdiff