OpenWrt – Rev 1
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/*
* makeamitbin - create firmware binaries for MGB100
*
* Copyright (C) 2007 Volker Weiss <dev@tintuc.de>
* Christian Welzel <dev@welzel-online.ch>
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
/* defaults: Level One WAP-0007 */
static char *ascii1 = "DDC_RUS001";
static char *ascii2 = "Queen";
static struct hdrinfo {
char *name;
unsigned long unknown; /* can probably be any number, maybe version number */
int topalign;
unsigned int addr;
unsigned int size;
} hdrinfo[] = {
{ "bios", 0xc76be111, 1, 0x3fa000, 0x006000 }, /* BIOS */
{ "recovery", 0xc76be222, 0, 0x3f0000, 0x004000 }, /* Recovery Loader */
{ "linux", 0xc76bee9d, 0, 0x000000, 0x100000 }, /* Linux */
{ "ramdisk", 0xc76bee9d, 0, 0x100000, 0x280000 }, /* ramdisk */
{ "amitconfig", 0xc76bee8b, 0, 0x380000, 0x060000 }, /* AMIT config */
{ "redboot", 0x00000000, 1, 0x3d0000, 0x030000 }, /* Redboot 128kB image */
{ "redbootlow", 0, 0, 0x3e0000, 0x18000 }, /* Redboot 1. part */
{ "redboothigh", 0, 0, 0x3fa000, 0x6000 }, /* Redboot 2. part */
{ "linux3g", 0xcb5f06b5, 0, 0x000000, 0x100000 }, /* Linux */
{ "ramdisk3g", 0xcb5f06b5, 0, 0x100000, 0x280000 }, /* ramdisk */
{ NULL }
};
/*
CHD2WLANU_R400b7
11e1 6bc7
22e2 6bc7
5dc3 47c8
5cc3 47c8
21c3 47c8
*/
/*
20060106_DDC_WAP-0007_R400b4
11e1 6bc7
22e2 6bc7
9dee 6bc7
9dee 6bc7
8bee 6bc7
*/
/*
WMU-6000FS_R400b6
11e1 6bc7
22e2 6bc7
6d2d 0fc8
6c2d 0fc8
542d 0fc8
*/
/*
WAP-0007(R4.00b8)_2006-10-02
9979 5fc8
22e2 6bc7
c46e cec8
c36e cec8
a76e cec8
*/
#define HDRSIZE 80
#define COPY_SHORT(d, o, v) d[o+0] = (unsigned char)((v) & 0xff); \
d[o+1] = (unsigned char)(((v) >> 8) & 0xff)
#define COPY_LONG(d, o, v) d[o+0] = (unsigned char)((v) & 0xff); \
d[o+1] = (unsigned char)(((v) >> 8) & 0xff); \
d[o+2] = (unsigned char)(((v) >> 16) & 0xff); \
d[o+3] = (unsigned char)(((v) >> 24) & 0xff)
#define READ_SHORT(d, o) ((unsigned short)(d[o+0]) + \
(((unsigned short)(d[o+1])) << 8))
/*
00..0d ASCII product ID
0e..0f checksum of payload
10..1b ASCII Queen
1c..1f AMIT BIOS: 11e1 6bc7, Recovery Tool: 22e2 6bc7
Linux: 5dc3 47c8, ramdisk: 5cc3 47c8
AMIT FS: 21c3 47c8 VERSION NUMBER??????
20..23 offset in flash aligned to segment boundary
24..27 length in flash aligned to segment boundary
28..2b offset in flash (payload)
2c..2f length (payload)
30..3f always 0
40..47 always 4248 0101 5000 0001 (last maybe .....0501)
48..4b same as 20..23
4c..4d always 0b00
4e..4f inverted checksum of header
*/
unsigned short checksum(unsigned char *data, long size)
{
long n;
unsigned short d, cs = 0;
for (n = 0; n < size; n += 2)
{
d = READ_SHORT(data, n);
cs += d;
if (cs < d)
cs++;
}
if (size & 1)
{
d = data[n];
cs += d;
if (cs < d)
cs++;
}
return cs;
}
void showhdr(unsigned char *hdr)
{
int i, j;
for (j = 0; j < 5; j++)
{
for (i = 0; i < 16; i++)
{
printf("%02x ", (unsigned int)(hdr[j * 16 + i]));
}
printf(" ");
for (i = 0; i < 16; i++)
{
unsigned char d = hdr[j * 16 + i];
printf("%c", (d >= ' ' && d < 127) ? d : '.');
}
printf("\n");
}
}
void makehdr(unsigned char *hdr, struct hdrinfo *info,
unsigned char *data, long size, int last)
{
unsigned int offset = info->addr + 0x10;
memset(hdr, 0, HDRSIZE);
if (info->topalign)
offset = info->addr + info->size - size; /* top align */
strncpy((char *)hdr + 0x00, ascii1, 14);
strncpy((char *)hdr + 0x10, ascii2, 12);
COPY_LONG(hdr, 0x1c, info->unknown);
COPY_LONG(hdr, 0x20, info->addr);
COPY_LONG(hdr, 0x24, info->size);
COPY_LONG(hdr, 0x28, offset);
COPY_LONG(hdr, 0x2c, size);
COPY_LONG(hdr, 0x40, 0x01014842);
COPY_LONG(hdr, 0x44, last ? 0x01050050 : 0x01000050);
COPY_LONG(hdr, 0x48, info->addr);
COPY_SHORT(hdr, 0x4c, info->unknown == 0xcb5f06b5 ? 0x0016 : 0x000b);
COPY_SHORT(hdr, 0x0e, checksum(data, size));
COPY_SHORT(hdr, 0x4e, ~checksum(hdr, HDRSIZE));
}
unsigned char *read_file(const char *name, long *size)
{
FILE *f;
unsigned char *data = NULL;
*size = 0;
f = fopen(name, "r");
if (f != NULL)
{
if (fseek(f, 0, SEEK_END) == 0)
{
*size = ftell(f);
if (*size != -1)
{
if (fseek(f, 0, SEEK_SET) == 0)
{
data = (unsigned char *)malloc(*size);
if (data != NULL)
{
if (fread(data, sizeof(char), *size, f) != *size)
{
free(data);
data = NULL;
}
}
}
}
}
fclose(f);
}
return data;
}
struct hdrinfo *find_hdrinfo(const char *name)
{
int n;
for (n = 0; hdrinfo[n].name != NULL; n++)
{
if (strcmp(name, hdrinfo[n].name) == 0)
return &hdrinfo[n];
}
return NULL;
}
void oferror(FILE *f)
{
printf("file error\n");
exit(2);
}
void showhelp(void)
{
printf("Syntax: makeamitbin [options]\n");
printf("Options:\n");
printf(" -1 ID1\tFirmware identifier 1, e.g. 'DDC_RUS001' for manufacturer LevelOne\n");
printf(" -2 ID2\tFirmware identifier 2, 'Queen' in all known cases\n");
printf(" -o FILE\tOutput file\n");
printf(" -ids\t\tShow a list of known firmware identifiers.\n");
exit(1);
}
void show_fwids(void)
{
printf("List of known firmware identifiers:\n");
printf("Manufacturer\t\tProduct\t\tIdentifier\n");
printf("=====================================================\n");
printf("Conceptronic\t\tCHD2WLANU\tLLM_RUS001\n");
printf("Pearl\t\t\tPE6643\t\tQueen\n");
printf("Micronica\t\tMGB100\t\tQueen\n");
printf("LevelOne\t\tWAP-0007\tDDC_RUS001\n");
printf("SMC\t\t\tWAPS-G\t\tSMC_RUS001\n");
printf("OvisLink (AirLive)\tWMU-6\t\tOVS_RUS001\n");
printf("SafeCom SWSAPUR-5\tFMW\t\tSafeco_RPS001\n");
exit(1);
}
int main(int argc, char *argv[])
{
unsigned char hdr[HDRSIZE];
unsigned char *data;
FILE *of;
char *outfile = NULL;
char *type;
struct hdrinfo *info;
long size;
int last = 0;
int n;
for (n = 1; n < argc; n++)
{
if (strcmp(argv[n], "-1") == 0)
ascii1 = argv[n+1];
if (strcmp(argv[n], "-2") == 0)
ascii2 = argv[n+1];
if (strcmp(argv[n], "-o") == 0)
outfile = argv[n+1];
if (strcmp(argv[n], "-ids") == 0)
show_fwids();
}
if (ascii1 == NULL || ascii2 == NULL || outfile == NULL)
showhelp();
of = fopen(outfile, "w");
if (of == NULL)
oferror(of);
for (n = 1; n < argc; n++)
{
if (strncmp(argv[n], "-", 1) != 0)
{
type = argv[n++];
if (n >= argc)
showhelp();
last = ((n + 1) >= argc); /* dirty, options first! */
info = find_hdrinfo(type);
if (info == NULL)
showhelp();
data = read_file(argv[n], &size);
if (data == NULL)
showhelp();
makehdr(hdr, info, data, size, last);
/* showhdr(hdr); */
if (fwrite(hdr, HDRSIZE, 1, of) != 1)
oferror(of);
if (fwrite(data, size, 1, of) != 1)
oferror(of);
free(data);
}
else
n++;
}
if (fclose(of) != 0)
oferror(NULL);
return 0;
}