c025bfc086
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18073 a1c6a512-1295-4272-9138-f99709370657
227 lines
7 KiB
C
227 lines
7 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2008 by Maurus Cuelenaere
|
|
*
|
|
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#include <stdio.h>
|
|
#include <stdbool.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#if !defined(__APPLE__)
|
|
#include <elf.h>
|
|
#else
|
|
#include "mac-elf.h" /* Mac OS X doesn't distribuate elf.h... */
|
|
#endif
|
|
|
|
#include "creative.h"
|
|
#include "hmac-sha1.h"
|
|
|
|
static const char null_key_v1[] = "CTL:N0MAD|PDE0.SIGN.";
|
|
static const char null_key_v2[] = "CTL:N0MAD|PDE0.DPMP.";
|
|
static const char null_key_v3[] = "CTL:Z3N07|PDE0.DPMP.";
|
|
static const char null_key_v4[] = "CTL:N0MAD|PDE0.DPFP.";
|
|
|
|
static const struct device_info devices[] =
|
|
{
|
|
/* Creative Zen Vision:M */
|
|
{"C\0r\0e\0a\0t\0i\0v\0e\0 \0Z\0e\0n\0 \0V\0i\0s\0i\0o\0n\0:\0M", 42, null_key_v2},
|
|
/* Creative Zen Vision:M Go! */
|
|
{"C\0r\0e\0a\0t\0i\0v\0e\0 \0Z\0e\0n\0 \0V\0i\0s\0i\0o\0n\0:\0M\0 \0G\0o\0!", 50, null_key_v2},
|
|
/* Creative Zen Vision © TL */
|
|
/* The "©" should be ANSI encoded or the device won't accept the firmware package. */
|
|
{"C\0r\0e\0a\0t\0i\0v\0e\0 \0Z\0e\0n\0 \0V\0i\0s\0i\0o\0n\0 \0©\0T\0L", 46, null_key_v2},
|
|
/* Creative ZEN V */
|
|
{"C\0r\0e\0a\0t\0i\0v\0e\0 \0Z\0E\0N\0 \0V", 42, null_key_v4},
|
|
/* Creative ZEN */
|
|
{"C\0r\0e\0a\0t\0i\0v\0e\0 \0Z\0E\0N", 48, null_key_v3}
|
|
};
|
|
|
|
/*
|
|
Create a Zen Vision:M FRESCUE structure file
|
|
*/
|
|
extern void int2le(unsigned int val, unsigned char* addr);
|
|
extern unsigned int le2int(unsigned char* buf);
|
|
|
|
|
|
static int make_ciff_file(const unsigned char *inbuf, unsigned int length,
|
|
unsigned char *outbuf, int device)
|
|
{
|
|
unsigned char key[20];
|
|
memcpy(outbuf, "FFIC", 4);
|
|
int2le(length+90, &outbuf[4]);
|
|
memcpy(&outbuf[8], "FNIC", 4);
|
|
int2le(96, &outbuf[0xC]);
|
|
memcpy(&outbuf[0x10], devices[device].cinf, devices[device].cinf_size);
|
|
memset(&outbuf[0x10+devices[device].cinf_size], 0,
|
|
96 - devices[device].cinf_size);
|
|
memcpy(&outbuf[0x70], "ATAD", 4);
|
|
int2le(length+32, &outbuf[0x74]);
|
|
memcpy(&outbuf[0x78], "H\0j\0u\0k\0e\0b\0o\0x\0\x32\0.\0j\0r\0m",
|
|
25); /*Unicode encoded*/
|
|
memset(&outbuf[0x78+25], 0, 32);
|
|
memcpy(&outbuf[0x98], inbuf, length);
|
|
memcpy(&outbuf[0x98+length], "LLUN", 4);
|
|
int2le(20, &outbuf[0x98+length+4]);
|
|
/* Do checksum */
|
|
hmac_sha1((unsigned char *)devices[device].null, strlen(devices[device].null),
|
|
outbuf, 0x98+length, key);
|
|
memcpy(&outbuf[0x98+length+8], key, 20);
|
|
return length+0x90+0x1C+8;
|
|
}
|
|
|
|
static int elf_convert(const unsigned char *inbuf, unsigned char *outbuf)
|
|
{
|
|
Elf32_Ehdr *main_header;
|
|
Elf32_Shdr *section_header;
|
|
unsigned int i, j, sum;
|
|
intptr_t startaddr;
|
|
|
|
main_header = (Elf32_Ehdr*)inbuf;
|
|
if( !( main_header->e_ident[0] == ELFMAG0 && main_header->e_ident[1] == ELFMAG1
|
|
&& main_header->e_ident[2] == ELFMAG2 && main_header->e_ident[3] == ELFMAG3 ) )
|
|
{
|
|
printf("Invalid ELF header!\n");
|
|
return -1;
|
|
}
|
|
|
|
startaddr = (intptr_t)outbuf;
|
|
|
|
for(i = 0; i < main_header->e_shnum; i++)
|
|
{
|
|
section_header = (Elf32_Shdr*)(inbuf+main_header->e_shoff+i*sizeof(Elf32_Shdr));
|
|
|
|
if( (section_header->sh_flags & SHF_WRITE || section_header->sh_flags & SHF_ALLOC
|
|
|| section_header->sh_flags & SHF_EXECINSTR) && section_header->sh_size > 0
|
|
&& section_header->sh_type != SHT_NOBITS )
|
|
{
|
|
/* Address */
|
|
int2le(section_header->sh_addr, outbuf);
|
|
outbuf += 4;
|
|
/* Size */
|
|
int2le(section_header->sh_size, outbuf);
|
|
outbuf += 4;
|
|
/* Checksum */
|
|
sum = 0;
|
|
for(j=0; j<section_header->sh_size; j+= 4)
|
|
sum += le2int((unsigned char*)(inbuf+section_header->sh_offset+j)) + (le2int((unsigned char*)(inbuf+section_header->sh_offset+j))>>16);
|
|
int2le(sum, outbuf);
|
|
outbuf += 2;
|
|
memset(outbuf, 0, 2);
|
|
outbuf += 2;
|
|
/* Data */
|
|
memcpy(outbuf, inbuf+section_header->sh_offset, section_header->sh_size);
|
|
outbuf += section_header->sh_size;
|
|
}
|
|
}
|
|
return (int)((intptr_t)outbuf - startaddr);
|
|
}
|
|
|
|
static int make_jrm_file(const unsigned char *inbuf, unsigned char *outbuf)
|
|
{
|
|
int length;
|
|
|
|
/* Clear the header area to zero */
|
|
memset(outbuf, 0, 0x18);
|
|
|
|
/* Header (EDOC) */
|
|
memcpy(outbuf, "EDOC", 4);
|
|
/* Total Size: temporarily set to 0 */
|
|
memset(&outbuf[0x4], 0, 4);
|
|
/* 4 bytes of zero */
|
|
memset(&outbuf[0x8], 0, 4);
|
|
|
|
length = elf_convert(inbuf, &outbuf[0xC]);
|
|
if(length < 0)
|
|
return -1;
|
|
/* Now set the actual Total Size */
|
|
int2le(4+length, &outbuf[0x4]);
|
|
|
|
return 0xC+length;
|
|
}
|
|
|
|
int zvm_encode(const char *iname, const char *oname, int device)
|
|
{
|
|
size_t len;
|
|
int length;
|
|
FILE *file;
|
|
unsigned char *outbuf;
|
|
unsigned char *buf;
|
|
|
|
file = fopen(iname, "rb");
|
|
if (!file) {
|
|
perror(iname);
|
|
return -1;
|
|
}
|
|
fseek(file, 0, SEEK_END);
|
|
length = ftell(file);
|
|
|
|
fseek(file, 0, SEEK_SET);
|
|
|
|
buf = (unsigned char*)malloc(length);
|
|
if ( !buf ) {
|
|
printf("Out of memory!\n");
|
|
return -1;
|
|
}
|
|
|
|
len = fread(buf, 1, length, file);
|
|
if(len < (size_t)length) {
|
|
perror(iname);
|
|
return -2;
|
|
}
|
|
fclose(file);
|
|
|
|
outbuf = (unsigned char*)malloc(length+0x300);
|
|
if ( !outbuf ) {
|
|
free(buf);
|
|
printf("Out of memory!\n");
|
|
return -1;
|
|
}
|
|
length = make_jrm_file(buf, outbuf);
|
|
free(buf);
|
|
if(length < 0)
|
|
{
|
|
free(outbuf);
|
|
printf("Error in making JRM file!\n");
|
|
return -1;
|
|
}
|
|
buf = (unsigned char*)malloc(length+0x200);
|
|
memset(buf, 0, length+0x200);
|
|
length = make_ciff_file(outbuf, length, buf, device);
|
|
free(outbuf);
|
|
|
|
file = fopen(oname, "wb");
|
|
if (!file) {
|
|
free(buf);
|
|
perror(oname);
|
|
return -3;
|
|
}
|
|
|
|
len = fwrite(buf, 1, length, file);
|
|
if(len < (size_t)length) {
|
|
free(buf);
|
|
perror(oname);
|
|
return -4;
|
|
}
|
|
|
|
free(buf);
|
|
|
|
fclose(file);
|
|
|
|
return 0;
|
|
}
|