diff options
Diffstat (limited to 'hostTools/nvramcrc.c')
| -rw-r--r-- | hostTools/nvramcrc.c | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/hostTools/nvramcrc.c b/hostTools/nvramcrc.c new file mode 100644 index 0000000..a737879 --- /dev/null +++ b/hostTools/nvramcrc.c @@ -0,0 +1,216 @@ +/* File Name : nvramcrc.c + * fix CRC of NVRAM in CFE + * gcc -m32 -o nvramcrc nvramcrc.c + * usage: nvramcrc inputfile outputfile + */ + + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <errno.h> +#include <netinet/in.h> + +typedef unsigned char byte; +typedef unsigned int UINT32; + +#define BUF_SIZE 100 * 1024 + +/*****************************************************************************/ +/* NVRAM Offset and definition */ +/*****************************************************************************/ +#define SDRAM_TYPE_ADDRESS_OFFSET 16 +#define THREAD_NUM_ADDRESS_OFFSET 20 +#define NVRAM_DATA_OFFSET 0x0580 + +#define NVRAM_PSI_DEFAULT 64 // default psi in K byes +#define ONEK 1024 +#define FLASH_LENGTH_BOOT_ROM (128*ONEK) +#define FLASH_RESERVED_AT_END (64*ONEK) /*reserved for PSI, scratch pad*/ + +#define NVRAM_LENGTH ONEK // 1k nvram +#define NVRAM_VERSION_NUMBER 2 +#define NVRAM_VERSION_NUMBER_ADDRESS 0 + +#define NVRAM_BOOTLINE_LEN 256 +#define NVRAM_BOARD_ID_STRING_LEN 16 +#define NVRAM_MAC_ADDRESS_LEN 6 +#define NVRAM_MAC_COUNT_MAX 32 +#define NVRAM_MAC_COUNT_DEFAULT 0 + +struct +{ + unsigned long ulVersion; + char szBootline[NVRAM_BOOTLINE_LEN]; + char szBoardId[NVRAM_BOARD_ID_STRING_LEN]; + unsigned long ulReserved1[2]; + unsigned long ulNumMacAddrs; + unsigned char ucaBaseMacAddr[NVRAM_MAC_ADDRESS_LEN]; + char chReserved[2]; + unsigned long ulCheckSum; +} NVRAM_DATA, *PNVRAM_DATA; + + + + +#define CRC32_INIT_VALUE 0xffffffff /* Initial CRC32 checksum value */ +#define CRC_LEN 4 + +static unsigned long Crc32_table[256] = { + 0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, + 0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3, + 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, + 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91, + 0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, + 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7, + 0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, + 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5, + 0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172, + 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, + 0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940, + 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59, + 0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, + 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F, + 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, + 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D, + 0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A, + 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433, + 0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, + 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01, + 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E, + 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457, + 0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C, + 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65, + 0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, + 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB, + 0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0, + 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9, + 0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, + 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F, + 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, + 0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD, + 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A, + 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683, + 0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8, + 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1, + 0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, + 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7, + 0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC, + 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, + 0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, + 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B, + 0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, + 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79, + 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236, + 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F, + 0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, + 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D, + 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, + 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713, + 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38, + 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, + 0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E, + 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777, + 0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, + 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45, + 0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2, + 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB, + 0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, + 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9, + 0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, + 0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF, + 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94, + 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D +}; + +byte buffer[BUF_SIZE]; + +/*************************************************************************** +// Function Name: getCrc32 +// Description : caculate the CRC 32 of the given data. +// Parameters : pdata - array of data. +// size - number of input data bytes. +// crc - either CRC32_INIT_VALUE or previous return value. +// Returns : crc. +****************************************************************************/ +UINT32 getCrc32(byte *pdata, UINT32 size, UINT32 crc) +{ + while (size-- > 4) + crc = (crc >> 8) ^ Crc32_table[(crc ^ *pdata++) & 0xff]; + crc = (crc >> 8) ^ Crc32_table[(crc ^ 0x00) & 0xff]; + crc = (crc >> 8) ^ Crc32_table[(crc ^ 0x00) & 0xff]; + crc = (crc >> 8) ^ Crc32_table[(crc ^ 0x00) & 0xff]; + crc = (crc >> 8) ^ Crc32_table[(crc ^ 0x00) & 0xff]; +printf("CRC = %x\n", crc); + return crc; +} + + +int main(int argc, char **argv) +{ + FILE *stream_in, *stream_out; + int count, numWritten = 0; + UINT32 imageCrc; + + if (argc != 3) + { + printf("Usage:\n"); + printf("nvramcrc input-cfe-file output-cfe-file-crc-fixed\n"); + exit(1); + } + if( (stream_in = fopen(argv[1], "rb")) == NULL) + { + printf("failed on open input file: %s\n", argv[1]); + exit(1); + } + if( (stream_out = fopen(argv[2], "wb+")) == NULL) + { + printf("failed on open output file: %s\n", argv[2]); + exit(1); + } + + count = 0; + imageCrc = CRC32_INIT_VALUE; + printf( "NVRAM_DATA length should be 300, calculated size = %d\n", sizeof(NVRAM_DATA)); + + fseek (stream_in, NVRAM_DATA_OFFSET, SEEK_SET); + count = fread( buffer, sizeof( char ), sizeof(NVRAM_DATA), stream_in ); + + if( ferror( stream_in ) ) + { + perror( "Read error" ); + exit(1); + } + + imageCrc = getCrc32(buffer, count, imageCrc); + + fseek (stream_in, 0L, SEEK_SET); + count = fread( buffer, sizeof( char ), BUF_SIZE, stream_in ); + numWritten = fwrite(buffer, sizeof(char), count, stream_out); + + if (ferror(stream_out)) + { + perror("nvramcrc: Write image file error"); + exit(1); + } + + // *** assume it is always in network byte order (big endian) + imageCrc = htonl(imageCrc); + + + // write the crc + fseek (stream_out, NVRAM_DATA_OFFSET+sizeof(NVRAM_DATA)-sizeof(NVRAM_DATA.ulCheckSum), SEEK_SET); + numWritten = fwrite((byte*)&imageCrc, sizeof(char), CRC_LEN, stream_out); + if (ferror(stream_out)) + { + perror("nvramcrc: Write image file error"); + exit(1); + } + + fclose(stream_in); + fclose(stream_out); + + printf( "crc = %x\n", imageCrc); + + exit(0); +} |