You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
147 lines
3.3 KiB
C
147 lines
3.3 KiB
C
/*
|
|
* motorola-bin.c
|
|
*
|
|
* Copyright (C) 2005-2006 Mike Baker,
|
|
* Imre Kaloz <kaloz@openwrt.org>
|
|
* OpenWrt.org
|
|
*
|
|
* $Id$
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* February 1, 2006
|
|
*
|
|
* Add support for for creating WA840G and WE800G images
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <sys/mman.h>
|
|
#include <string.h>
|
|
#include <netinet/in.h>
|
|
|
|
unsigned long *crc32;
|
|
|
|
void init_crc32()
|
|
{
|
|
unsigned long crc;
|
|
unsigned long poly = ntohl(0x2083b8ed);
|
|
int n, bit;
|
|
if ((crc32 = (unsigned long *) malloc(256 * sizeof(unsigned long))) == (void *)-1) {
|
|
perror("malloc");
|
|
exit(1);
|
|
}
|
|
for (n = 0; n < 256; n++) {
|
|
crc = (unsigned long) n;
|
|
for (bit = 0; bit < 8; bit++)
|
|
crc = (crc & 1) ? (poly ^ (crc >> 1)) : (crc >> 1);
|
|
crc32[n] = crc;
|
|
}
|
|
}
|
|
|
|
unsigned int crc32buf(char *buf, size_t len)
|
|
{
|
|
unsigned int crc = 0xFFFFFFFF;
|
|
for (; len; len--, buf++)
|
|
crc = crc32[(crc ^ *buf) & 0xff] ^ (crc >> 8);
|
|
return crc;
|
|
}
|
|
|
|
struct motorola {
|
|
unsigned int crc; // crc32 of the remainder
|
|
unsigned int flags; // unknown, 105770*
|
|
char *trx; // standard trx
|
|
};
|
|
|
|
void usage(void) __attribute__ (( __noreturn__ ));
|
|
|
|
void usage(void)
|
|
{
|
|
printf("Usage: motorola-bin [-device] [trxfile] [binfile]\n\n");
|
|
printf("Known devices: 1 - WR850G | 2 - WA840G | 3 - WE800G\n");
|
|
exit(1);
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
unsigned int len;
|
|
int fd;
|
|
int c;
|
|
void *trx;
|
|
struct motorola *firmware;
|
|
|
|
// verify parameters
|
|
|
|
if (argc!=4)
|
|
{
|
|
usage();
|
|
}
|
|
|
|
// mmap trx file
|
|
if (((fd = open(argv[2], O_RDONLY)) < 0)
|
|
|| ((len = lseek(fd, 0, SEEK_END)) < 0)
|
|
|| ((trx = mmap(0, len, PROT_READ, MAP_SHARED, fd, 0)) == (void *) (-1))
|
|
|| (close(fd) < 0)) {
|
|
perror("open/malloc");
|
|
exit(1);
|
|
}
|
|
|
|
// create a firmware image in memory
|
|
// and copy the trx to it
|
|
firmware = malloc(len+8);
|
|
memcpy(&firmware->trx,trx,len);
|
|
munmap(trx,len);
|
|
|
|
// setup the motorola headers
|
|
init_crc32();
|
|
|
|
// setup the firmware magic
|
|
|
|
while ((c = getopt(argc, argv, "123")) !=-1) {
|
|
switch (c) {
|
|
case '1':
|
|
firmware->flags = ntohl(0x10577050); // Motorola WR850G
|
|
break;
|
|
case '2':
|
|
firmware->flags = ntohl(0x10577040); // Motorola WA840G
|
|
break;
|
|
case '3':
|
|
firmware->flags = ntohl(0x10577000); // Motorola WE800G
|
|
break;
|
|
default:
|
|
usage();
|
|
}
|
|
}
|
|
|
|
firmware->crc = htonl(crc32buf((char *)&firmware->flags,len+4));
|
|
|
|
// write the firmware
|
|
if (((fd = open(argv[3], O_CREAT|O_WRONLY,0644)) < 0)
|
|
|| (write(fd,firmware,len+8) != len+8)
|
|
|| (close(fd) < 0)) {
|
|
perror("write");
|
|
exit(-1);
|
|
}
|
|
|
|
free(firmware);
|
|
|
|
return 0;
|
|
}
|