rendered paste body/*
* WML11b firmware tool v1.0.0
*
* written by poutine/acidtoken
*
* This code is public domain.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <unistd.h>
#include <stdarg.h>
#include <fcntl.h>
#define FLAG_NONE 0
#define FLAG_JOIN 1
#define FLAG_EXTRACT 2
#define FLAG_HEADER 4
#define FLAG_IMAGE 8
#define FLAG_CNE 16
#define FLAG_PRINT 32
#define FLAG_FIX 64
#define ENDIAN_BIG 1
#define ENDIAN_LITTLE 0
#define CRC32_XINIT 0xFFFFFFFFL /* initial value */
#define CRC32_XOROT 0xFFFFFFFFL /* final xor value */
#define MINIMUM_CHECKSUM_LEN 8
#define MAXIMUM_CHECKSUM_LEN 99
/* NAACCR 6.0 Specifications */
#define NAACCR_60_CHECKSUM_POS 942
#define NAACCR_60_CHECKSUM_LEN 10
struct firmware
{
char ident[5];
unsigned int flags;
char timestamp[17];
unsigned int soft_id;
unsigned short soft_mid;
unsigned short soft_min;
unsigned int hardcomp;
unsigned int unknown1;
unsigned int unknown2;
unsigned int header_crc;
unsigned int image_offset;
unsigned int image_load_offset;
unsigned int image_size;
unsigned int image_crc;
unsigned char nulls[16];
unsigned int cne_offset;
unsigned int unknown4;
unsigned int cne_size;
unsigned int cne_crc;
/* Proper CRCs */
unsigned int p_header_crc;
unsigned int p_image_crc;
unsigned int p_cne_crc;
/* File names */
char *header_file;
char *image_file;
char *cne_file;
/* file data */
char *header;
char *image;
char *cne;
char *in_file;
char *out_file;
};
/* For the CRC32 calculation */
unsigned long crctable[256] =
{
0x00000000L, 0x77073096L, 0xEE0E612CL, 0x990951BAL,
0x076DC419L, 0x706AF48FL, 0xE963A535L, 0x9E6495A3L,
0x0EDB8832L, 0x79DCB8A4L, 0xE0D5E91EL, 0x97D2D988L,
0x09B64C2BL, 0x7EB17CBDL, 0xE7B82D07L, 0x90BF1D91L,
0x1DB71064L, 0x6AB020F2L, 0xF3B97148L, 0x84BE41DEL,
0x1ADAD47DL, 0x6DDDE4EBL, 0xF4D4B551L, 0x83D385C7L,
0x136C9856L, 0x646BA8C0L, 0xFD62F97AL, 0x8A65C9ECL,
0x14015C4FL, 0x63066CD9L, 0xFA0F3D63L, 0x8D080DF5L,
0x3B6E20C8L, 0x4C69105EL, 0xD56041E4L, 0xA2677172L,
0x3C03E4D1L, 0x4B04D447L, 0xD20D85FDL, 0xA50AB56BL,
0x35B5A8FAL, 0x42B2986CL, 0xDBBBC9D6L, 0xACBCF940L,
0x32D86CE3L, 0x45DF5C75L, 0xDCD60DCFL, 0xABD13D59L,
0x26D930ACL, 0x51DE003AL, 0xC8D75180L, 0xBFD06116L,
0x21B4F4B5L, 0x56B3C423L, 0xCFBA9599L, 0xB8BDA50FL,
0x2802B89EL, 0x5F058808L, 0xC60CD9B2L, 0xB10BE924L,
0x2F6F7C87L, 0x58684C11L, 0xC1611DABL, 0xB6662D3DL,
0x76DC4190L, 0x01DB7106L, 0x98D220BCL, 0xEFD5102AL,
0x71B18589L, 0x06B6B51FL, 0x9FBFE4A5L, 0xE8B8D433L,
0x7807C9A2L, 0x0F00F934L, 0x9609A88EL, 0xE10E9818L,
0x7F6A0DBBL, 0x086D3D2DL, 0x91646C97L, 0xE6635C01L,
0x6B6B51F4L, 0x1C6C6162L, 0x856530D8L, 0xF262004EL,
0x6C0695EDL, 0x1B01A57BL, 0x8208F4C1L, 0xF50FC457L,
0x65B0D9C6L, 0x12B7E950L, 0x8BBEB8EAL, 0xFCB9887CL,
0x62DD1DDFL, 0x15DA2D49L, 0x8CD37CF3L, 0xFBD44C65L,
0x4DB26158L, 0x3AB551CEL, 0xA3BC0074L, 0xD4BB30E2L,
0x4ADFA541L, 0x3DD895D7L, 0xA4D1C46DL, 0xD3D6F4FBL,
0x4369E96AL, 0x346ED9FCL, 0xAD678846L, 0xDA60B8D0L,
0x44042D73L, 0x33031DE5L, 0xAA0A4C5FL, 0xDD0D7CC9L,
0x5005713CL, 0x270241AAL, 0xBE0B1010L, 0xC90C2086L,
0x5768B525L, 0x206F85B3L, 0xB966D409L, 0xCE61E49FL,
0x5EDEF90EL, 0x29D9C998L, 0xB0D09822L, 0xC7D7A8B4L,
0x59B33D17L, 0x2EB40D81L, 0xB7BD5C3BL, 0xC0BA6CADL,
0xEDB88320L, 0x9ABFB3B6L, 0x03B6E20CL, 0x74B1D29AL,
0xEAD54739L, 0x9DD277AFL, 0x04DB2615L, 0x73DC1683L,
0xE3630B12L, 0x94643B84L, 0x0D6D6A3EL, 0x7A6A5AA8L,
0xE40ECF0BL, 0x9309FF9DL, 0x0A00AE27L, 0x7D079EB1L,
0xF00F9344L, 0x8708A3D2L, 0x1E01F268L, 0x6906C2FEL,
0xF762575DL, 0x806567CBL, 0x196C3671L, 0x6E6B06E7L,
0xFED41B76L, 0x89D32BE0L, 0x10DA7A5AL, 0x67DD4ACCL,
0xF9B9DF6FL, 0x8EBEEFF9L, 0x17B7BE43L, 0x60B08ED5L,
0xD6D6A3E8L, 0xA1D1937EL, 0x38D8C2C4L, 0x4FDFF252L,
0xD1BB67F1L, 0xA6BC5767L, 0x3FB506DDL, 0x48B2364BL,
0xD80D2BDAL, 0xAF0A1B4CL, 0x36034AF6L, 0x41047A60L,
0xDF60EFC3L, 0xA867DF55L, 0x316E8EEFL, 0x4669BE79L,
0xCB61B38CL, 0xBC66831AL, 0x256FD2A0L, 0x5268E236L,
0xCC0C7795L, 0xBB0B4703L, 0x220216B9L, 0x5505262FL,
0xC5BA3BBEL, 0xB2BD0B28L, 0x2BB45A92L, 0x5CB36A04L,
0xC2D7FFA7L, 0xB5D0CF31L, 0x2CD99E8BL, 0x5BDEAE1DL,
0x9B64C2B0L, 0xEC63F226L, 0x756AA39CL, 0x026D930AL,
0x9C0906A9L, 0xEB0E363FL, 0x72076785L, 0x05005713L,
0x95BF4A82L, 0xE2B87A14L, 0x7BB12BAEL, 0x0CB61B38L,
0x92D28E9BL, 0xE5D5BE0DL, 0x7CDCEFB7L, 0x0BDBDF21L,
0x86D3D2D4L, 0xF1D4E242L, 0x68DDB3F8L, 0x1FDA836EL,
0x81BE16CDL, 0xF6B9265BL, 0x6FB077E1L, 0x18B74777L,
0x88085AE6L, 0xFF0F6A70L, 0x66063BCAL, 0x11010B5CL,
0x8F659EFFL, 0xF862AE69L, 0x616BFFD3L, 0x166CCF45L,
0xA00AE278L, 0xD70DD2EEL, 0x4E048354L, 0x3903B3C2L,
0xA7672661L, 0xD06016F7L, 0x4969474DL, 0x3E6E77DBL,
0xAED16A4AL, 0xD9D65ADCL, 0x40DF0B66L, 0x37D83BF0L,
0xA9BCAE53L, 0xDEBB9EC5L, 0x47B2CF7FL, 0x30B5FFE9L,
0xBDBDF21CL, 0xCABAC28AL, 0x53B39330L, 0x24B4A3A6L,
0xBAD03605L, 0xCDD70693L, 0x54DE5729L, 0x23D967BFL,
0xB3667A2EL, 0xC4614AB8L, 0x5D681B02L, 0x2A6F2B94L,
0xB40BBE37L, 0xC30C8EA1L, 0x5A05DF1BL, 0x2D02EF8DL
};
unsigned long CalcCRC32(unsigned char *p, unsigned long reclen, unsigned long checksumpos, unsigned long checksumlen)
{
unsigned long j;
/* initialize value */
unsigned long crc = CRC32_XINIT;
/* process each byte prior to checksum field */
for (j = 1; j < checksumpos; j++)
{
crc = crctable[(crc ^ *p++) & 0xFFL] ^ (crc >> 8);
}
/* skip checksum position */
j += checksumlen;
p += checksumlen;
/* process remaining bytes in record */
while (j <= reclen)
{
crc = crctable[(crc ^ *p++) & 0xFFL] ^ (crc >> 8);
j++;
}
/* return XOR out value */
return crc ^ CRC32_XOROT;
}
void print_firmware_file_info(struct firmware *fw)
{
int fd, out;
if ((fd = open(fw->in_file, O_RDONLY)) == -1)
{
printf("Could not open %s\n",fw->in_file);
exit(EXIT_FAILURE);
}
/* Assumed to work */
if (read(fd, fw->ident, sizeof(fw->ident) - 1) < 4)
{
printf("File is too short to be a valid .bcd file <4 bytes\n");
exit(EXIT_FAILURE);
}
if (strcmp(fw->ident,"bCoD"))
{
printf("File does not appear to be a valid .bcd file\n");
exit(EXIT_FAILURE);
}
/* File *could* be mangled past here, but I don't care */
read(fd, (char *)&fw->flags, 4);
read(fd, (char *)&fw->timestamp, sizeof(fw->timestamp)-1);
fw->timestamp[sizeof(fw->timestamp)-1] = '\0';
read(fd, (char *)&fw->soft_id, 4);
read(fd, (char *)&fw->soft_min, 2);
read(fd, (char *)&fw->soft_mid, 2);
read(fd, (char *)&fw->hardcomp, 4);
read(fd, (char *)&fw->unknown1, 4);
read(fd, (char *)&fw->unknown2, 4);
read(fd, (char *)&fw->header_crc, 4);
read(fd, (char *)&fw->image_offset, 4);
read(fd, (char *)&fw->image_load_offset, 4);
read(fd, (char *)&fw->image_size, 4);
read(fd, (char *)&fw->image_crc, 4);
read(fd, (char *)&fw->nulls,16);
read(fd, (char *)&fw->cne_offset, 4);
read(fd, (char *)&fw->unknown4, 4);
read(fd, (char *)&fw->cne_size, 4);
read(fd, (char *)&fw->cne_crc, 4);
if ((fw->header = malloc(fw->image_offset)) == NULL)
{
printf("Could not allocate memory to store header\n");
exit(EXIT_FAILURE);
}
lseek(fd, 0, SEEK_SET);
read(fd, fw->header, fw->image_offset);
if ((fw->image = malloc(fw->image_size)) == NULL)
{
printf("Could not allocate memory to store header\n");
exit(EXIT_FAILURE);
}
lseek(fd, fw->image_offset, SEEK_SET);
read(fd, fw->image, fw->image_size);
if ((fw->cne = malloc(fw->cne_size)) == NULL)
{
printf("Could not allocate memory to store CNE\n");
exit(EXIT_FAILURE);
}
lseek(fd, fw->cne_offset, SEEK_SET);
read(fd, fw->cne, fw->cne_size);
close(fd);
/* Do proper checksumming */
/* zero out 4 bytes of header that contained hash */
fw->header[44] = fw->header[45] = fw->header[46] = fw->header[47] = 0;
fw->p_header_crc = CalcCRC32((unsigned char*)fw->header,96,0,0);
fw->p_image_crc = CalcCRC32((unsigned char*)fw->image,fw->image_size,0,0);
fw->p_cne_crc = CalcCRC32((unsigned char*)fw->cne,fw->cne_size,0,0);
out = open("image.out", O_WRONLY | O_CREAT);
write(out, fw->image, fw->image_size);
close(out);
return;
}
void print_firmware_info(const struct firmware *fw)
{
printf("Firmware information\n");
printf("--------------------\n");
printf("Timestamp : %s\n",fw->timestamp);
printf("Version : %d.%d.%d\n",fw->soft_id,fw->soft_mid, fw->soft_min);
printf("Image Size : %d\n",fw->image_size);
printf("Image Offset: 0x%x\n",fw->image_offset);
printf("Cne Size : %d\n",fw->cne_size);
printf("Cne Offset : 0x%x\n",fw->cne_offset);
printf("\n\nCRCs\n");
printf("Header CRC : 0x%x\n",fw->header_crc);
printf("Image CRC : 0x%x\n",fw->image_crc);
printf("CNE CRC : 0x%x\n",fw->cne_crc);
}
void check_checksums(const struct firmware *fw)
{
printf("\n\nVerifying Checksums\n");
printf("--------------------\n");
if (fw->header_crc == fw->p_header_crc)
printf("Header CRC matched.\n");
else
printf("Header CRC mismatch. (%x) should be (%x)\n",fw->header_crc,
fw->p_header_crc);
if (fw->image_crc == fw->p_image_crc)
printf("Image CRC matched.\n");
else
printf("Image CRC mismatch. (%x) should be (%x)\n",fw->image_crc,
fw->p_image_crc);
if (fw->cne_crc == fw->p_cne_crc)
printf("CNE CRC matched.\n");
else
printf("CNE CRC mismatch. (%x) should be (%x)\n",fw->cne_crc,
fw->p_cne_crc);
}
void print_help(void)
{
printf("WML11b firmware tool by poutine/acidtoken\n");
printf("-----------------------------------------\n");
printf("Full list of commandline parameters: \n\n");
printf("-f - Fix CRCs (automatic with -p) \n");
printf("-j - Join firmware file (use with -h, -i, and -c)\n");
printf("-e - Extract firmware file (use with -h, -i, and -c)\n");
printf("-h - Header file (used with -e and -j)\n");
printf("-i - Image file (used with -e and -j)\n");
printf("-c - CNE file (used with -e and -j)\n");
printf("-p - Print BCD file info \n\n");
printf("Example Usage:\n\n");
printf(" Extract image.bin cne.bin and header.bin:\n");
printf(" ./wml11b -e firmware_file.bcd -h header.bin -i image.bin -c cne.bin\n");
printf(" Parse bcd file and print info, check CRCs:\n");
printf(" ./wml11b -p firmware_file.bcd\n");
printf(" Create .bcd file from image.bin cne.bin and header.bin (CRCs will be fixed automatically):\n");
printf(" ./wml11b -j out.bcd -h header.bin -i image.bin -c cne.bin\n");
printf(" Just fix CRCs in BCD file:\n");
printf(" ./wml11b -f firmware_file.bcd\n\n");
return;
}
int main(int argc, char *argv[])
{
struct firmware *fw;
int a;
unsigned char flags = FLAG_NONE;
if (argc == 1)
{
print_help();
return EXIT_FAILURE;
}
if ((fw = malloc(sizeof(struct firmware))) == NULL)
{
printf("Could not allocate memory for the firmware struct\n");
return EXIT_FAILURE;
}
fw->header_file = NULL;
fw->image_file = NULL;
fw->cne_file = NULL;
fw->out_file = NULL;
fw->in_file = NULL;
a = 1;
while (a < argc)
{
if (!strcmp(argv[a],"-f"))
{
a++;
if (a == argc)
{
printf("Error: No filename provided with -p\n\n");
print_help();
return EXIT_FAILURE;
}
if ((fw->in_file = malloc(strlen(argv[a]))) == NULL)
{
printf("Could not allocate memory barfing\n");
return EXIT_FAILURE;
}
strcpy(fw->in_file,argv[a++]);
flags |= FLAG_FIX;
}
else if (!strcmp(argv[a],"-p"))
{
a++;
if (a == argc)
{
printf("Error: No filename provided with -p\n\n");
print_help();
return EXIT_FAILURE;
}
if ((fw->in_file = malloc(strlen(argv[a]))) == NULL)
{
printf("Could not allocate memory barfing\n");
return EXIT_FAILURE;
}
strcpy(fw->in_file,argv[a++]);
flags |= FLAG_PRINT;
}
else if (!strcmp(argv[a],"-c"))
{
a++;
if (a == argc)
{
printf("Error: No filename provided with -c\n\n");
print_help();
return EXIT_FAILURE;
}
if ((fw->cne_file = malloc(strlen(argv[a]))) == NULL)
{
printf("Could not allocate memory barfing\n");
return EXIT_FAILURE;
}
strcpy(fw->cne_file,argv[a++]);
flags |= FLAG_CNE;
}
else if (!strcmp(argv[a],"-h"))
{
a++;
if (a == argc)
{
printf("Error: No filename provided with -h\n\n");
print_help();
return EXIT_FAILURE;
}
if ((fw->header_file = malloc(strlen(argv[a]))) == NULL)
{
printf("Could not allocate memory barfing\n");
return EXIT_FAILURE;
}
strcpy(fw->image_file,argv[a++]);
flags |= FLAG_HEADER;
}
else if (!strcmp(argv[a],"-i"))
{
a++;
if (a == argc)
{
printf("Error: No filename provided with -i\n\n");
print_help();
return EXIT_FAILURE;
}
if ((fw->image_file = malloc(strlen(argv[a]))) == NULL)
{
printf("Could not allocate memory barfing\n");
return EXIT_FAILURE;
}
strcpy(fw->image_file,argv[a++]);
flags |= FLAG_IMAGE;
}
else if (!strcmp(argv[a],"-j"))
{
a++;
if (a == argc)
{
printf("Error: No filename provided with -j\n\n");
print_help();
return EXIT_FAILURE;
}
if ((fw->out_file = malloc(strlen(argv[a]))) == NULL)
{
printf("Could not allocate memory barfing\n");
return EXIT_FAILURE;
}
strcpy(fw->out_file,argv[a++]);
flags |= FLAG_JOIN;
}
else if (!strcmp(argv[a],"-e"))
{
a++;
flags |= FLAG_EXTRACT;
}
else
a++;
}
if ((flags & FLAG_JOIN == FLAG_JOIN || flags & FLAG_EXTRACT == FLAG_EXTRACT))
{
if (flags & (FLAG_JOIN | FLAG_EXTRACT) == (FLAG_JOIN | FLAG_EXTRACT))
{
printf("Make up your damn mind already, join or extract.\n\n");
return EXIT_FAILURE;
}
if (flags & (FLAG_HEADER | FLAG_IMAGE | FLAG_CNE) != (FLAG_HEADER | FLAG_IMAGE | FLAG_CNE))
{
printf("-h, -i, and -c MUST be used when -e or -j is used.\n\n");
return EXIT_FAILURE;
}
}
if (flags & FLAG_PRINT == FLAG_PRINT)
{
printf("Firmware info for %s\n",fw->in_file);
print_firmware_file_info(fw);
}
/*
print_firmware_info(fw);
check_checksums(fw);
*/
return EXIT_SUCCESS;
}