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