Introduce rbutil/mkzenboot, a replacement for tools/mkzenboot

The old tools/mkzenboot has a number of problems: very hard to maintain,
poor integration with rbutil. Restart from scratch by recycling all the
crypto and descrambling code, rewrite the actual firmware modification part
to handle all scenarios in a much clearer way. The code is ready to be
integrated into Rockbox Utility, by using the very similar interface to
mkimxboot.
I copied all the keys from the old mkzenboot, so it can potentially support
the older Creative ports, but since this is untested, I prefer not do so
at the moment. However, I did add a "mixed" boot option to support the
dualboot style used in the older ports.

Change-Id: I80cfc48fa78187baa1b1692e8a30ec7137cea37b
This commit is contained in:
Amaury Pouly 2013-10-22 00:48:33 +02:00
parent 5cfb148ae2
commit 2e0c558064
15 changed files with 2574 additions and 0 deletions

30
rbutil/mkzenboot/Makefile Normal file
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# __________ __ ___.
# Open \______ \ ____ ____ | | _\_ |__ _______ ___
# Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
# Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
# Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
# \/ \/ \/ \/ \/
# We use the HMAC-SHA1 code from tools/
TOOLS_DIR=../../tools/
CFLAGS += -Wall -I$(TOOLS_DIR)
CFLAGS += -std=c99 -g
LDOPTS += -lz
OUTPUT = mkzenboot
# inputs for lib
TOOLS_SOURCES = hmac-sha1.c
LIBSOURCES := dualboot.c mkzenboot.c md5.c utils.c \
$(addprefix $(TOOLS_DIR),$(TOOLS_SOURCES))
# inputs for binary only
SOURCES := $(LIBSOURCES) main.c
# dependencies for binary
EXTRADEPS :=
include ../libtools.make
# explicit dependencies on dualboot.{c,h} and mkimxboot.h
$(OBJDIR)mkzenboot.o: dualboot.h dualboot.c mkzenboot.c mkzenboot.h
$(OBJDIR)main.o: dualboot.h dualboot.c main.c mkzenboot.h

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/* Generated by bin2c */
#include "dualboot.h"
unsigned char dualboot_zenmozaic[168] = {
0x10, 0x40, 0x2d, 0xe9, 0x7c, 0x30, 0x9f, 0xe5, 0x00, 0x30, 0x93, 0xe5, 0x78, 0x20, 0x9f, 0xe5,
0x00, 0x00, 0x92, 0xe5, 0x74, 0x20, 0x9f, 0xe5, 0x02, 0x11, 0xa0, 0xe3, 0x08, 0x10, 0x82, 0xe5,
0x03, 0x11, 0x81, 0xe2, 0x08, 0x10, 0x82, 0xe5, 0xff, 0x14, 0x81, 0xe2, 0x58, 0x10, 0x82, 0xe5,
0xc2, 0x14, 0x81, 0xe2, 0x24, 0x10, 0x82, 0xe5, 0x01, 0x10, 0xa0, 0xe3, 0x18, 0x10, 0x82, 0xe5,
0x04, 0x10, 0x82, 0xe5, 0x02, 0x10, 0xa0, 0xe1, 0x10, 0x20, 0x91, 0xe5, 0x01, 0x00, 0x12, 0xe3,
0xfc, 0xff, 0xff, 0x0a, 0x34, 0x20, 0x9f, 0xe5, 0x50, 0x20, 0x92, 0xe5, 0xff, 0x24, 0xc2, 0xe3,
0x3f, 0x27, 0xc2, 0xe3, 0xa5, 0x2e, 0x42, 0xe2, 0x0a, 0x20, 0x42, 0xe2, 0x63, 0x00, 0x52, 0xe3,
0x00, 0x30, 0xa0, 0x93, 0x20, 0x00, 0x83, 0x95, 0x14, 0x20, 0x9f, 0xe5, 0x00, 0x00, 0x92, 0xe5,
0x33, 0xff, 0x2f, 0xe1, 0x10, 0x80, 0xbd, 0xe8, 0xa0, 0x00, 0x00, 0x41, 0x9c, 0x00, 0x00, 0x41,
0x00, 0x00, 0x05, 0x80, 0xa4, 0x00, 0x00, 0x41, 0xda, 0x00, 0xeb, 0x1c, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
unsigned char dualboot_zenxfi[168] = {
0x10, 0x40, 0x2d, 0xe9, 0x7c, 0x30, 0x9f, 0xe5, 0x00, 0x30, 0x93, 0xe5, 0x78, 0x20, 0x9f, 0xe5,
0x00, 0x00, 0x92, 0xe5, 0x74, 0x20, 0x9f, 0xe5, 0x02, 0x11, 0xa0, 0xe3, 0x08, 0x10, 0x82, 0xe5,
0x03, 0x11, 0x81, 0xe2, 0x08, 0x10, 0x82, 0xe5, 0xff, 0x14, 0x81, 0xe2, 0x58, 0x10, 0x82, 0xe5,
0xc2, 0x14, 0x81, 0xe2, 0x24, 0x10, 0x82, 0xe5, 0x01, 0x10, 0xa0, 0xe3, 0x18, 0x10, 0x82, 0xe5,
0x04, 0x10, 0x82, 0xe5, 0x02, 0x10, 0xa0, 0xe1, 0x10, 0x20, 0x91, 0xe5, 0x01, 0x00, 0x12, 0xe3,
0xfc, 0xff, 0xff, 0x0a, 0x34, 0x20, 0x9f, 0xe5, 0x50, 0x20, 0x92, 0xe5, 0xff, 0x24, 0xc2, 0xe3,
0x3f, 0x27, 0xc2, 0xe3, 0xa5, 0x2e, 0x42, 0xe2, 0x0a, 0x20, 0x42, 0xe2, 0x63, 0x00, 0x52, 0xe3,
0x00, 0x30, 0xa0, 0x93, 0x20, 0x00, 0x83, 0x95, 0x14, 0x20, 0x9f, 0xe5, 0x00, 0x00, 0x92, 0xe5,
0x33, 0xff, 0x2f, 0xe1, 0x10, 0x80, 0xbd, 0xe8, 0xa0, 0x00, 0x00, 0x41, 0x9c, 0x00, 0x00, 0x41,
0x00, 0x00, 0x05, 0x80, 0xa4, 0x00, 0x00, 0x41, 0xda, 0x00, 0xeb, 0x1c, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
unsigned char dualboot_zen[168] = {
0x10, 0x40, 0x2d, 0xe9, 0x7c, 0x30, 0x9f, 0xe5, 0x00, 0x30, 0x93, 0xe5, 0x78, 0x20, 0x9f, 0xe5,
0x00, 0x00, 0x92, 0xe5, 0x74, 0x20, 0x9f, 0xe5, 0x02, 0x11, 0xa0, 0xe3, 0x08, 0x10, 0x82, 0xe5,
0x03, 0x11, 0x81, 0xe2, 0x08, 0x10, 0x82, 0xe5, 0xff, 0x14, 0x81, 0xe2, 0x58, 0x10, 0x82, 0xe5,
0xc2, 0x14, 0x81, 0xe2, 0x24, 0x10, 0x82, 0xe5, 0x01, 0x10, 0xa0, 0xe3, 0x18, 0x10, 0x82, 0xe5,
0x04, 0x10, 0x82, 0xe5, 0x02, 0x10, 0xa0, 0xe1, 0x10, 0x20, 0x91, 0xe5, 0x01, 0x00, 0x12, 0xe3,
0xfc, 0xff, 0xff, 0x0a, 0x34, 0x20, 0x9f, 0xe5, 0x50, 0x20, 0x92, 0xe5, 0xff, 0x24, 0xc2, 0xe3,
0x3f, 0x27, 0xc2, 0xe3, 0xa5, 0x2e, 0x42, 0xe2, 0x0a, 0x20, 0x42, 0xe2, 0x63, 0x00, 0x52, 0xe3,
0x00, 0x30, 0xa0, 0x93, 0x20, 0x00, 0x83, 0x95, 0x14, 0x20, 0x9f, 0xe5, 0x00, 0x00, 0x92, 0xe5,
0x33, 0xff, 0x2f, 0xe1, 0x10, 0x80, 0xbd, 0xe8, 0xa0, 0x00, 0x00, 0x41, 0x9c, 0x00, 0x00, 0x41,
0x00, 0x00, 0x05, 0x80, 0xa4, 0x00, 0x00, 0x41, 0xda, 0x00, 0xeb, 0x1c, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};

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/* Generated by bin2c */
extern unsigned char dualboot_zenmozaic[168];
extern unsigned char dualboot_zenxfi[168];
extern unsigned char dualboot_zen[168];

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CC=gcc
LD=ld
OC=objcopy
CROSS_PREFIX=arm-elf-eabi-
REGS_PATH=../../../firmware/target/arm/imx233/regs
CFLAGS=-mcpu=arm926ej-s -std=gnu99 -I. -I$(REGS_PATH) -nostdlib -ffreestanding -fomit-frame-pointer -O
LDFLAGS=
# Edit the following variables when adding a new target.
# mkimxboot.c also needs to be edited to refer to these
# To add a new target x you need to:
# 1) add x to the list in TARGETS
# 2) create a variable named OPT_x of the form:
# OPT_x=target specific defines
TARGETS=zenmozaic zenxfi zen
OPT_zenmozaic=-DCREATIVE_ZENMOZAIC -DIMX233_SUBTARGET=3700
OPT_zenxfi=-DCREATIVE_ZENXFI -DIMX233_SUBTARGET=3700
OPT_zen=-DCREATIVE_ZEN -DIMX233_SUBTARGET=3700
BOOTLDS=$(patsubst %, dualboot_%.lds, $(TARGETS))
BOOTOBJS=$(patsubst %, dualboot_%.o, $(TARGETS))
BOOTBINS=$(patsubst %, dualboot_%.arm-bin, $(TARGETS))
BOOTELFS=$(patsubst %, dualboot_%.arm-elf, $(TARGETS))
all: ../dualboot.h ../dualboot.c $(BOOTELFS)
# Dualboot bootloaders
dualboot_%.o: dualboot.c
$(CROSS_PREFIX)$(CC) $(CFLAGS) $(OPT_$(@:dualboot_%.o=%)) -c -o $@ $^
dualboot_%.lds: dualboot.lds
$(CROSS_PREFIX)$(CC) $(CFLAGS) $(OPT_$(@:dualboot_%.lds=%)) -E -x c - < $< | sed '/#/d' > $@
dualboot_%.arm-elf: dualboot_%.o dualboot_%.lds
$(CROSS_PREFIX)$(LD) $(LDFLAGS) -T$(@:dualboot_%.arm-elf=dualboot_%.lds) -o $@ $<
# Rules for the ARM code embedded in mkamsboot - assemble, link, then extract
# the binary code and finally convert to .h for building in mkamsboot
%.arm-bin: %.arm-elf
$(CROSS_PREFIX)$(OC) -O binary $< $@
../dualboot.c ../dualboot.h: $(BOOTBINS) bin2c
./bin2c ../dualboot $(BOOTBINS)
bin2c: bin2c.c
$(CC) -o bin2c bin2c.c
clean:
rm -f *~ bin2c $(BOOTBINS) $(BOOTOBJS) $(BOOTELFS) $(BOOTLDS)

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2007 Dave Chapman
*
* 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 <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <libgen.h>
#ifndef O_BINARY
#define O_BINARY 0
#endif
static off_t filesize(int fd)
{
struct stat buf;
fstat(fd,&buf);
return buf.st_size;
}
static void write_cfile(const unsigned char* buf, off_t len, FILE* fp, const char *name)
{
int i;
fprintf(fp,"unsigned char %s[%ld] = {",name,len);
for (i=0;i<len;i++) {
if ((i % 16) == 0) {
fprintf(fp,"\n ");
}
if (i == (len-1)) {
fprintf(fp,"0x%02x",buf[i]);
} else if ((i % 16) == 15) {
fprintf(fp,"0x%02x,",buf[i]);
} else {
fprintf(fp,"0x%02x, ",buf[i]);
}
}
fprintf(fp,"\n};\n");
}
int main (int argc, char* argv[])
{
char* cname;
int i;
FILE *cfile, *hfile;
char cfilename[256], hfilename[256];
if (argc < 3) {
fprintf(stderr,"Usage: bin2c cname file1 [file2 [file3 ...]]\n");
return 1;
}
cname=argv[1];
snprintf(cfilename,256,"%s.c",cname);
cfile = fopen(cfilename,"w+");
if (cfile == NULL) {
fprintf(stderr,"Couldn't open %s\n",cfilename);
return 2;
}
snprintf(hfilename,256,"%s.h",cname);
hfile = fopen(hfilename,"w+");
if (hfile == NULL) {
fprintf(stderr,"Couldn't open %s\n",hfilename);
fclose(cfile);
return 3;
}
fprintf(cfile,"/* Generated by bin2c */\n\n");
fprintf(cfile,"#include \"%s\"\n\n", basename(hfilename));
fprintf(hfile,"/* Generated by bin2c */\n\n");
for(i=0; i < argc - 2; i++) {
unsigned char* buf;
off_t len;
off_t orig_len;
char *ext;
char *array = argv[2+i];
int fd = open(array,O_RDONLY|O_BINARY);
if (fd < 0) {
fprintf(stderr,"Can not open %s\n",argv[2+i]);
fclose(cfile);
fclose(hfile);
return 4;
}
orig_len = filesize(fd);
/* pad to 32bit */
len = (orig_len + 3) & ~3;
buf = malloc(len);
if (read(fd,buf,orig_len) < orig_len) {
fprintf(stderr,"Short read, aborting\n");
return 5;
}
/* pad to 32bit with zeros */
if (len > orig_len)
memset(buf+orig_len, 0, len-orig_len);
/* remove file extension */
ext = strchr (array, '.');
if (ext != NULL)
*ext = '\0';
write_cfile (buf, len, cfile, array);
fprintf(hfile,"extern unsigned char %s[%ld];\n",array,len);
close(fd);
}
fclose(cfile);
fclose(hfile);
return 0;
}

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2013 by Amaury Pouly
*
* 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.
*
****************************************************************************/
/** empty, used by register files */

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2013 by Amaury Pouly
*
* 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 "regs-pinctrl.h"
#include "regs-power.h"
#include "regs-lradc.h"
typedef unsigned long uint32_t;
// target specific boot decision
enum boot_t
{
BOOT_STOP, /* power down */
BOOT_ROCK, /* boot to Rockbox */
BOOT_OF, /* boot to OF */
};
/**
* Helper functions
*/
static inline int __attribute__((always_inline)) read_gpio(int bank, int pin)
{
return (HW_PINCTRL_DINn(bank) >> pin) & 1;
}
static inline int __attribute__((always_inline)) read_pswitch(void)
{
#if IMX233_SUBTARGET >= 3700
return BF_RD(POWER_STS, PSWITCH);
#else
return BF_RD(DIGCTL_STATUS, PSWITCH);
#endif
}
/* only works for channels <=7, always divide by 2, never accumulates */
static inline void __attribute__((always_inline)) setup_lradc(int src)
{
BF_CLR(LRADC_CTRL0, SFTRST);
BF_CLR(LRADC_CTRL0, CLKGATE);
/* don't bother changing the source, we are early enough at boot so that
* channel x is mapped to source x */
HW_LRADC_CHn_CLR(src) = BM_OR2(LRADC_CHn, NUM_SAMPLES, ACCUMULATE);
BF_SETV(LRADC_CTRL2, DIVIDE_BY_TWO, 1 << src);
}
#define BP_LRADC_CTRL1_LRADCx_IRQ(x) (x)
#define BM_LRADC_CTRL1_LRADCx_IRQ(x) (1 << (x))
static inline int __attribute__((always_inline)) read_lradc(int src)
{
BF_CLR(LRADC_CTRL1, LRADCx_IRQ(src));
BF_SETV(LRADC_CTRL0, SCHEDULE, 1 << src);
while(!BF_RD(LRADC_CTRL1, LRADCx_IRQ(src)));
return BF_RDn(LRADC_CHn, src, VALUE);
}
static inline void __attribute__((noreturn)) power_down()
{
/* power down */
HW_POWER_RESET = BM_OR2(POWER_RESET, UNLOCK, PWD);
while(1);
}
/**
* Boot decision functions
*/
#if defined(CREATIVE_ZENMOZAIC) || defined(CREATIVE_ZEN) || defined(CREATIVE_ZENXFI)
static enum boot_t boot_decision()
{
setup_lradc(0); // setup LRADC channel 0 to read keys
/* make a decision */
/* read keys */
int val = read_lradc(0);
/* if back is pressed, boot to OF
* otherwise boot to RB */
if(val >= 2650 && val < 2750) // conveniently, all players use the same value
return BOOT_OF;
return BOOT_ROCK;
}
#else
#warning You should define a target specific boot decision function
static int boot_decision()
{
return BOOT_ROCK;
}
#endif
static int main(uint32_t rb_addr, uint32_t of_addr)
{
switch(boot_decision())
{
case BOOT_ROCK:
return rb_addr;
case BOOT_OF:
/* fix back the loading address
/* NOTE: see mkzenboot for more details */
*(uint32_t *)0x20 = of_addr;
return 0;
case BOOT_STOP:
default:
power_down();
}
}
/** Glue for the linker mostly */
extern uint32_t of_vector;
extern uint32_t rb_vector;
extern uint32_t boot_arg;
void __attribute__((section(".start"))) start()
{
uint32_t addr = main(rb_vector, of_vector);
((void (*)(uint32_t))addr)(boot_arg);
}

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ENTRY(start)
OUTPUT_FORMAT(elf32-littlearm)
OUTPUT_ARCH(arm)
MEMORY
{
/* keep this consistent with the address in mkzenboot.c */
#if IMX233_SUBTARGET == 3700
RAM : ORIGIN = 0x41000000, LENGTH = 0x8000
#elif IMX233_SUBTARGET == 3600
RAM : ORIGIN = 0x61000000, LENGTH = 0x8000
#else
#error define me
#endif
}
SECTIONS
{
.text :
{
*(.start*)
*(.text*)
. = ALIGN(4);
LONG(0x1ceb00da)
of_vector = .;
. += 4;
rb_vector = .;
. += 4;
boot_arg = .;
. += 4;
} > RAM
}

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rbutil/mkzenboot/main.c Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2013 by Amaury Pouly
*
* 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 <getopt.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "mkzenboot.h"
static void usage(void)
{
printf("Usage: mkzenboot [options | file]...\n");
printf("Options:\n");
printf(" -?/--help Display this message\n");
printf(" -i <file> Set input file\n");
printf(" -o <file> Set output file\n");
printf(" -b <file> Set boot file\n");
printf(" -t <type> Set output type\n");
printf(" -d/--debug Enable debug output\n");
printf("Output types: dualboot, deferred_dualboot, singleboot, recovery\n");
printf("By default a dualboot image is built\n");
exit(1);
}
int main(int argc, char *argv[])
{
char *outfile = NULL;
char *bootfile = NULL;
char *infile = NULL;
struct zen_option_t opt;
memset(&opt, 0, sizeof(opt));
if(argc == 1)
usage();
while(1)
{
static struct option long_options[] =
{
{"help", no_argument, 0, '?'},
{"debug", no_argument, 0, 'd'},
{0, 0, 0, 0}
};
int c = getopt_long(argc, argv, "?di:o:b:t:", long_options, NULL);
if(c == -1)
break;
switch(c)
{
case 'd':
opt.debug = true;
break;
case '?':
usage();
break;
case 'o':
outfile = optarg;
break;
case 'i':
infile = optarg;
break;
case 'b':
bootfile = optarg;
break;
case 't':
if(strcmp(optarg, "dualboot") == 0) opt.output = ZEN_DUALBOOT;
else if(strcmp(optarg, "mixedboot") == 0) opt.output = ZEN_MIXEDBOOT;
else if(strcmp(optarg, "singleboot") == 0) opt.output = ZEN_SINGLEBOOT;
else if(strcmp(optarg, "recovery") == 0) opt.output = ZEN_RECOVERY;
else
{
printf("Unknown output type '%s'\n", optarg);
return 1;
}
break;
default:
abort();
}
}
if(!outfile)
{
printf("You must specify an output file\n");
return 1;
}
if(!bootfile)
{
printf("You must specify a boot file\n");
return 1;
}
if(!infile)
{
printf("You must specify an input file\n");
return 1;
}
if(optind != argc)
{
printf("Extra arguments on command line\n");
return 1;
}
enum zen_error_t err = mkzenboot(infile, bootfile, outfile, opt);
printf("Result: %d\n", err);
return 0;
}

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rbutil/mkzenboot/md5.c Normal file
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/*
* RFC 1321 compliant MD5 implementation
*
* Copyright (C) 2001-2003 Christophe Devine
*
* 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
*/
#include <string.h>
#include "md5.h"
#define GET_UINT32(n,b,i) \
{ \
(n) = ( (uint32) (b)[(i) ] ) \
| ( (uint32) (b)[(i) + 1] << 8 ) \
| ( (uint32) (b)[(i) + 2] << 16 ) \
| ( (uint32) (b)[(i) + 3] << 24 ); \
}
#define PUT_UINT32(n,b,i) \
{ \
(b)[(i) ] = (uint8) ( (n) ); \
(b)[(i) + 1] = (uint8) ( (n) >> 8 ); \
(b)[(i) + 2] = (uint8) ( (n) >> 16 ); \
(b)[(i) + 3] = (uint8) ( (n) >> 24 ); \
}
void md5_starts( md5_context *ctx )
{
ctx->total[0] = 0;
ctx->total[1] = 0;
ctx->state[0] = 0x67452301;
ctx->state[1] = 0xEFCDAB89;
ctx->state[2] = 0x98BADCFE;
ctx->state[3] = 0x10325476;
}
void md5_process( md5_context *ctx, uint8 data[64] )
{
uint32 X[16], A, B, C, D;
GET_UINT32( X[0], data, 0 );
GET_UINT32( X[1], data, 4 );
GET_UINT32( X[2], data, 8 );
GET_UINT32( X[3], data, 12 );
GET_UINT32( X[4], data, 16 );
GET_UINT32( X[5], data, 20 );
GET_UINT32( X[6], data, 24 );
GET_UINT32( X[7], data, 28 );
GET_UINT32( X[8], data, 32 );
GET_UINT32( X[9], data, 36 );
GET_UINT32( X[10], data, 40 );
GET_UINT32( X[11], data, 44 );
GET_UINT32( X[12], data, 48 );
GET_UINT32( X[13], data, 52 );
GET_UINT32( X[14], data, 56 );
GET_UINT32( X[15], data, 60 );
#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
#define P(a,b,c,d,k,s,t) \
{ \
a += F(b,c,d) + X[k] + t; a = S(a,s) + b; \
}
A = ctx->state[0];
B = ctx->state[1];
C = ctx->state[2];
D = ctx->state[3];
#define F(x,y,z) (z ^ (x & (y ^ z)))
P( A, B, C, D, 0, 7, 0xD76AA478 );
P( D, A, B, C, 1, 12, 0xE8C7B756 );
P( C, D, A, B, 2, 17, 0x242070DB );
P( B, C, D, A, 3, 22, 0xC1BDCEEE );
P( A, B, C, D, 4, 7, 0xF57C0FAF );
P( D, A, B, C, 5, 12, 0x4787C62A );
P( C, D, A, B, 6, 17, 0xA8304613 );
P( B, C, D, A, 7, 22, 0xFD469501 );
P( A, B, C, D, 8, 7, 0x698098D8 );
P( D, A, B, C, 9, 12, 0x8B44F7AF );
P( C, D, A, B, 10, 17, 0xFFFF5BB1 );
P( B, C, D, A, 11, 22, 0x895CD7BE );
P( A, B, C, D, 12, 7, 0x6B901122 );
P( D, A, B, C, 13, 12, 0xFD987193 );
P( C, D, A, B, 14, 17, 0xA679438E );
P( B, C, D, A, 15, 22, 0x49B40821 );
#undef F
#define F(x,y,z) (y ^ (z & (x ^ y)))
P( A, B, C, D, 1, 5, 0xF61E2562 );
P( D, A, B, C, 6, 9, 0xC040B340 );
P( C, D, A, B, 11, 14, 0x265E5A51 );
P( B, C, D, A, 0, 20, 0xE9B6C7AA );
P( A, B, C, D, 5, 5, 0xD62F105D );
P( D, A, B, C, 10, 9, 0x02441453 );
P( C, D, A, B, 15, 14, 0xD8A1E681 );
P( B, C, D, A, 4, 20, 0xE7D3FBC8 );
P( A, B, C, D, 9, 5, 0x21E1CDE6 );
P( D, A, B, C, 14, 9, 0xC33707D6 );
P( C, D, A, B, 3, 14, 0xF4D50D87 );
P( B, C, D, A, 8, 20, 0x455A14ED );
P( A, B, C, D, 13, 5, 0xA9E3E905 );
P( D, A, B, C, 2, 9, 0xFCEFA3F8 );
P( C, D, A, B, 7, 14, 0x676F02D9 );
P( B, C, D, A, 12, 20, 0x8D2A4C8A );
#undef F
#define F(x,y,z) (x ^ y ^ z)
P( A, B, C, D, 5, 4, 0xFFFA3942 );
P( D, A, B, C, 8, 11, 0x8771F681 );
P( C, D, A, B, 11, 16, 0x6D9D6122 );
P( B, C, D, A, 14, 23, 0xFDE5380C );
P( A, B, C, D, 1, 4, 0xA4BEEA44 );
P( D, A, B, C, 4, 11, 0x4BDECFA9 );
P( C, D, A, B, 7, 16, 0xF6BB4B60 );
P( B, C, D, A, 10, 23, 0xBEBFBC70 );
P( A, B, C, D, 13, 4, 0x289B7EC6 );
P( D, A, B, C, 0, 11, 0xEAA127FA );
P( C, D, A, B, 3, 16, 0xD4EF3085 );
P( B, C, D, A, 6, 23, 0x04881D05 );
P( A, B, C, D, 9, 4, 0xD9D4D039 );
P( D, A, B, C, 12, 11, 0xE6DB99E5 );
P( C, D, A, B, 15, 16, 0x1FA27CF8 );
P( B, C, D, A, 2, 23, 0xC4AC5665 );
#undef F
#define F(x,y,z) (y ^ (x | ~z))
P( A, B, C, D, 0, 6, 0xF4292244 );
P( D, A, B, C, 7, 10, 0x432AFF97 );
P( C, D, A, B, 14, 15, 0xAB9423A7 );
P( B, C, D, A, 5, 21, 0xFC93A039 );
P( A, B, C, D, 12, 6, 0x655B59C3 );
P( D, A, B, C, 3, 10, 0x8F0CCC92 );
P( C, D, A, B, 10, 15, 0xFFEFF47D );
P( B, C, D, A, 1, 21, 0x85845DD1 );
P( A, B, C, D, 8, 6, 0x6FA87E4F );
P( D, A, B, C, 15, 10, 0xFE2CE6E0 );
P( C, D, A, B, 6, 15, 0xA3014314 );
P( B, C, D, A, 13, 21, 0x4E0811A1 );
P( A, B, C, D, 4, 6, 0xF7537E82 );
P( D, A, B, C, 11, 10, 0xBD3AF235 );
P( C, D, A, B, 2, 15, 0x2AD7D2BB );
P( B, C, D, A, 9, 21, 0xEB86D391 );
#undef F
ctx->state[0] += A;
ctx->state[1] += B;
ctx->state[2] += C;
ctx->state[3] += D;
}
void md5_update( md5_context *ctx, uint8 *input, uint32 length )
{
uint32 left, fill;
if( ! length ) return;
left = ctx->total[0] & 0x3F;
fill = 64 - left;
ctx->total[0] += length;
ctx->total[0] &= 0xFFFFFFFF;
if( ctx->total[0] < length )
ctx->total[1]++;
if( left && length >= fill )
{
memcpy( (void *) (ctx->buffer + left),
(void *) input, fill );
md5_process( ctx, ctx->buffer );
length -= fill;
input += fill;
left = 0;
}
while( length >= 64 )
{
md5_process( ctx, input );
length -= 64;
input += 64;
}
if( length )
{
memcpy( (void *) (ctx->buffer + left),
(void *) input, length );
}
}
static uint8 md5_padding[64] =
{
0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
void md5_finish( md5_context *ctx, uint8 digest[16] )
{
uint32 last, padn;
uint32 high, low;
uint8 msglen[8];
high = ( ctx->total[0] >> 29 )
| ( ctx->total[1] << 3 );
low = ( ctx->total[0] << 3 );
PUT_UINT32( low, msglen, 0 );
PUT_UINT32( high, msglen, 4 );
last = ctx->total[0] & 0x3F;
padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
md5_update( ctx, md5_padding, padn );
md5_update( ctx, msglen, 8 );
PUT_UINT32( ctx->state[0], digest, 0 );
PUT_UINT32( ctx->state[1], digest, 4 );
PUT_UINT32( ctx->state[2], digest, 8 );
PUT_UINT32( ctx->state[3], digest, 12 );
}

25
rbutil/mkzenboot/md5.h Normal file
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@ -0,0 +1,25 @@
#ifndef _MD5_H
#define _MD5_H
#ifndef uint8
#define uint8 unsigned char
#endif
#ifndef uint32
#define uint32 unsigned long int
#endif
typedef struct
{
uint32 total[2];
uint32 state[4];
uint8 buffer[64];
}
md5_context;
void md5_starts( md5_context *ctx );
void md5_update( md5_context *ctx, uint8 *input, uint32 length );
void md5_finish( md5_context *ctx, uint8 digest[16] );
#endif /* md5.h */

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@ -0,0 +1,689 @@
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 by Maurus Cuelenaere
* Based on zenutils by Rasmus Ry <rasmus.ry{at}gmail.com>
* Copyright (C) 2013 by Amaury Pouly
*
* 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 <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include "mkzenboot.h"
#include "utils.h"
#include "dualboot.h"
/**
* Keys used by players
*/
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:N0MAD|PDE0.DPFP.";
static const char null_key_v4[] = "CTL:Z3N07|PDE0.DPMP.";
static const char tl_zvm_key[] = "1sN0TM3D az u~may th1nk*"
"Creative Zen Vision:M";
static const char tl_zvm60_key[] = "1sN0TM3D az u~may th1nk*"
"Creative Zen Vision:M (D"
"VP-HD0004)";
static const char tl_zen_key[] = "1sN0TM3D az u~may th1nk*"
"Creative ZEN";
static const char tl_zenxf_key[] = "1sN0TM3D az u~may th1nk*"
"Creative ZEN X-Fi";
static const char tl_zenmo_key[] = "1sN0TM3D az u~may th1nk*"
"Creative ZEN Mozaic";
static const char tl_zv_key[] = "1sN0TM3D az u~may th1nk*"
"Creative Zen Vision";
static const char tl_zvw_key[] = "1sN0TM3D az u~may th1nk*"
"Creative ZEN Vision W";
static const char tl_zm_key[] = "1sN0TM3D az u~may th1nk*"
"Creative Zen Micro";
static const char tl_zmp_key[] = "1sN0TM3D az u~may th1nk*"
"Creative Zen MicroPhoto";
static const char tl_zs_key[] = "1sN0TM3D az u~may th1nk*"
"Creative Zen Sleek";
static const char tl_zsp_key[] = "1sN0TM3D az u~may th1nk*"
"Creative Zen Sleek Photo";
static const char tl_zt_key[] = "1sN0TM3D az u~may th1nk*"
"Creative Zen Touch";
static const char tl_zx_key[] = "1sN0TM3D az u~may th1nk*"
"NOMAD Jukebox Zen Xtra";
static const char tl_zenv_key[] = "1sN0TM3D az u~may th1nk*"
"Creative ZEN V";
static const char tl_zenvp_key[] = "1sN0TM3D az u~may th1nk*"
"Creative ZEN V Plus";
static const char tl_zenvv_key[] = "1sN0TM3D az u~may th1nk*"
"Creative ZEN V (Video)";
struct player_info_t
{
const char* name;
const char* null_key; /* HMAC-SHA1 key */
const char* tl_key; /* BlowFish key */
bool big_endian;
char *cinf;
};
static struct player_info_t zen_players[] =
{
{"Zen Vision:M", null_key_v2, tl_zvm_key, false, NULL},
{"Zen Vision:M 60GB", null_key_v2, tl_zvm60_key, false, NULL},
{"Zen", null_key_v4, tl_zen_key, false, "Creative ZEN"},
{"Zen X-Fi", null_key_v4, tl_zenxf_key, false, "Creative ZEN X-Fi"},
{"Zen Mozaic", null_key_v4, tl_zenmo_key, false, "Creative ZEN Mozaic"},
{"Zen Vision", null_key_v2, tl_zv_key, false, NULL},
{"Zen Vision W", null_key_v2, tl_zvw_key, false, NULL},
{"Zen Micro", null_key_v1, tl_zm_key, true, NULL},
{"Zen MicroPhoto", null_key_v1, tl_zmp_key, true, NULL},
{"Zen Sleek", null_key_v1, tl_zs_key, true, NULL},
{"Zen SleekPhoto", null_key_v1, tl_zsp_key, true, NULL},
{"Zen Touch", null_key_v1, tl_zt_key, true, NULL},
{"Zen Xtra", null_key_v1, tl_zx_key, true, NULL},
{"Zen V", null_key_v3, tl_zenv_key, false, NULL},
{"Zen V Plus", null_key_v3, tl_zenvp_key, false, NULL},
{"Zen V Video", null_key_v3, tl_zenvv_key, false, NULL},
{NULL, NULL, NULL, false, NULL}
};
/**
* Information on how to patch firmwares
*/
struct zen_model_desc_t
{
/* Descriptive name of this model (must match player in zen_players[]) */
const char *model_name;
/* Model name used in the Rockbox header in ".zen" files - these match the
-add parameter to the "scramble" tool */
const char *rb_model_name;
/* Model number used to initialise the checksum in the Rockbox header in
".zen" files - these are the same as MODEL_NUMBER in config-target.h */
const int rb_model_num;
/* Bootloader load address */
uint32_t bootloader_addr;
/* Dualboot code for this model */
const unsigned char *dualboot;
/* Size of dualboot functions for this model */
int dualboot_size;
};
/* keep this consistent with the address in dualboot.lds */
static const struct zen_model_desc_t zen_models[] =
{
[MODEL_UNKNOWN] =
{
"Unknown", " ", 0, 0, NULL, 0
},
[MODEL_ZENV] =
{
"Zen V", "zenv", 85, 0x60000000, NULL, 0
},
[MODEL_ZENXFI] =
{
"Zen X-Fi", "zxfi", 86, 0x41000000, dualboot_zenxfi, sizeof(dualboot_zenxfi)
},
[MODEL_ZENMOZAIC] =
{
"Zen Mozaic", "zmoz", 87, 0x41000000, dualboot_zenmozaic, sizeof(dualboot_zenmozaic)
},
[MODEL_ZEN] =
{
"Zen", "zen", 90, 0x41000000, dualboot_zen, sizeof(dualboot_zen)
},
};
/**
* MD5 knowledge base
*/
struct zen_md5sum_t
{
/* Device model */
enum zen_model_t model;
/* md5sum of the file */
char *md5sum;
/* Version string */
const char *version;
};
static const struct zen_md5sum_t zen_sums[] =
{
/** Zen Mozaic */
{
/* Version 1.06.01e */
MODEL_ZENMOZAIC, "88a856f8273b2bc3fcacf1f067a44aa8", "1.06.01e"
},
/** Zen X-Fi */
{
/* Version 1.04.08e */
MODEL_ZENXFI, "f07e2e75069289a2aa14c6583bd9643b", "1.04.08e"
},
/** Zen V */
{
/* Version 1.32.01e */
MODEL_ZENV, "2f6d3e619557583c30132ac87221bc3e", "1.32.01e"
},
/** Zen */
{
/* Version 1.21.03e */
MODEL_ZEN, "1fe28f587f87ac3c280281db28c42465", "1.21.03e"
}
};
#define NR_ZEN_PLAYERS (sizeof(zen_players) / sizeof(zen_players[0]))
#define NR_ZEN_SUMS (sizeof(zen_sums) / sizeof(zen_sums[0]))
#define NR_ZEN_MODELS (sizeof(zen_models) / sizeof(zen_models[0]))
#define MAGIC_ROCK 0x726f636b /* 'rock' */
#define MAGIC_RECOVERY 0xfee1dead
#define MAGIC_NORMAL 0xcafebabe
/**
* Stolen from various places in our codebase
*/
/**
* EDOC file format
*/
struct edoc_header_t
{
char magic[4];
uint32_t total_size;
uint32_t zero;
};
struct edoc_section_header_t
{
uint32_t addr;
uint32_t size;
uint32_t checksum;
};
uint32_t edoc_checksum(void *buffer, size_t size)
{
uint32_t c = 0;
uint32_t *p = buffer;
while(size >= 4)
{
c += *p + (*p >> 16);
p++;
size -= 4;
}
if(size != 0)
printf("[WARN] EDOC Checksum section size is not a multiple of 4 bytes, result is undefined!\n");
return c & 0xffff;
}
#define errorf(err, ...) do { printf(__VA_ARGS__); return err; } while(0)
/**
* How does patching code work
* ---------------------------
*
* All Creative firmwares work the same: they start at 0 and the code sequence at
* 0 always contains the vector table with ldr with offsets:
* 0: e59ff018 ldr pc, [pc, #24] ; 0x20
* 4: e59ff018 ldr pc, [pc, #24] ; 0x24
* 8: e59ff018 ldr pc, [pc, #24] ; 0x28
* c: e59ff018 ldr pc, [pc, #24] ; 0x2c
* 10: e59ff018 ldr pc, [pc, #24] ; 0x30
* 14: e59ff018 ldr pc, [pc, #24] ; 0x34
* 18: e59ff018 ldr pc, [pc, #24] ; 0x38
* 1c: e59ff018 ldr pc, [pc, #24] ; 0x3c
* 20: 0000dbd4 .word start
* 24: 0000dcac .word undef_instr_handler
* 28: 0000dcb0 .word software_int_handler
* 2c: 0000dcb4 .word prefetch_abort_handler
* 30: 0000dcb8 .word data_abort_handler
* 34: 0000dcbc .word reserved_handler
* 38: 0000dcc0 .word irq_handler
* 3c: 0000dd08 .word fiq_handler
*
* To build a dual-boot image, we modify the start address to point to some
* code we added to the image. Specifically we first add the stub, then
* the rockbox image. We also write the old start address to this
* stub so that it can either decide to run rockbox or patch back the
* start address and jump to 0.
* Singleboot and recovery is handled the same way except that both targets use
* the same address and we drop the OF, so we create a fake vector table!
*/
struct dualboot_footer_t
{
uint32_t magic;
uint32_t of_addr;
uint32_t rb_addr;
uint32_t boot_arg;
} __attribute__((packed));
#define FOOTER_MAGIC 0x1ceb00da
static enum zen_error_t create_fake_image(uint8_t **fw, uint32_t *fw_size)
{
/** We need to create a fake EDOC image, so first a header and one section
* header with one data chunk. */
/** The fake image is as follows:
* 0: e59ff018 ldr pc, [pc, #24] ; 0x20
* 4: e59ff018 ldr pc, [pc, #24] ; 0x24
* 8: e59ff018 ldr pc, [pc, #24] ; 0x28
* c: e59ff018 ldr pc, [pc, #24] ; 0x2c
* 10: e59ff018 ldr pc, [pc, #24] ; 0x30
* 14: e59ff018 ldr pc, [pc, #24] ; 0x34
* 18: e59ff018 ldr pc, [pc, #24] ; 0x38
* 1c: e59ff018 ldr pc, [pc, #24] ; 0x3c
* 20: 00000040 .word hang
* 24: 00000040 .word hang
* 28: 00000040 .word hang
* 2c: 00000040 .word hang
* 30: 00000040 .word hang
* 34: 00000040 .word hang
* 38: 00000040 .word hang
* 3c: 00000040 .word hang
* 40 <hang>:
* 40: eafffffe b 40 <hang> */
*fw_size = sizeof(struct edoc_header_t) + sizeof(struct edoc_section_header_t) + 0x44;
*fw = malloc(*fw_size);
if(*fw == NULL)
errorf(ZEN_ERROR, "[ERR] Allocation failed");
struct edoc_header_t *hdr = (void *)*fw;
memcpy(hdr->magic, "EDOC", 4);
hdr->total_size = *fw_size - sizeof(struct edoc_header_t) + 4;
hdr->zero = 0;
struct edoc_section_header_t *sec = (void *)(hdr + 1);
sec->addr = 0;
sec->size = 0x44;
uint32_t *p = (void *)(sec + 1);
p[0] = p[1] = p[2] = p[3] = p[4] = p[5] = p[6] = p[7] = 0xe59ff018;
p[8] = p[9] = p[10] = p[11] = p[12] = p[13] = p[14] = p[15] = 0x40;
p[16] = 0xeafffffe;
sec->checksum = edoc_checksum(p, 0x44);
return ZEN_SUCCESS;
}
static enum zen_error_t patch_firmware(uint8_t **fw, uint32_t *fw_size,
void *boot, size_t boot_size, struct zen_option_t opt)
{
/* check if dualboot stub is available */
const void *dualboot = zen_models[opt.model].dualboot;
int dualboot_size = zen_models[opt.model].dualboot_size;
uint32_t dualboot_addr = zen_models[opt.model].bootloader_addr;
if(dualboot == NULL)
errorf(ZEN_DONT_KNOW_HOW_TO_PATCH, "[ERR] I don't have a dualboot stub for this model\n");
/* if not asked to dualboot, drop OF and create a fake image */
if(opt.output != ZEN_DUALBOOT)
{
enum zen_error_t ret = create_fake_image(fw, fw_size);
if(ret != ZEN_SUCCESS)
return ret;
}
/* compute final image size: add stub + bootloader in one block as a section */
int extra_size = sizeof(struct edoc_section_header_t) + dualboot_size + boot_size;
*fw_size += extra_size;
*fw = realloc(*fw, *fw_size);
if(*fw == NULL)
errorf(ZEN_ERROR, "[ERR] Allocation failed");
/* sanity check */
struct edoc_header_t *hdr = (void *)*fw;
if(memcmp(hdr->magic, "EDOC", 4) != 0)
errorf(ZEN_FW_INVALID, "[ERR] Firmware doesn't use EDOC format\n");
/* validate image and find OF start addr */
uint32_t of_addr = 0;
struct edoc_section_header_t *sec_hdr = (void *)(hdr + 1);
while((void *)sec_hdr - (void *)&hdr->zero < hdr->total_size)
{
if(sec_hdr->checksum != edoc_checksum(sec_hdr + 1, sec_hdr->size))
errorf(ZEN_FW_INVALID, "[ERR] Firmware checksum error\n");
if(sec_hdr->addr == 0)
{
uint32_t *start_vector = ((void *)(sec_hdr + 1) + 0x20);
/* extract address */
of_addr = *(uint32_t *)start_vector;
/* patch vector */
*start_vector = dualboot_addr;
/* fix checksum */
sec_hdr->checksum = edoc_checksum(sec_hdr + 1, sec_hdr->size);
}
sec_hdr = (void *)(sec_hdr + 1) + sec_hdr->size;
}
if(of_addr == 0)
errorf(ZEN_FW_INVALID, "[ERR] Firmware doesn't have the expected format\n");
printf("[INFO] OF start address: %#x\n", of_addr);
/* add extra section */
sec_hdr->addr = dualboot_addr;
sec_hdr->size = dualboot_size + boot_size;
/* add extra data */
memcpy(sec_hdr + 1, dualboot, dualboot_size);
memcpy((void *)(sec_hdr + 1) + dualboot_size, boot, boot_size);
/* locate and patch dualboot footer */
struct dualboot_footer_t *footer = (void *)(sec_hdr + 1) + dualboot_size -
sizeof(struct dualboot_footer_t);
if(footer->magic != FOOTER_MAGIC)
errorf(ZEN_FW_INVALID, "[ERR] Footer magic mismatch\n");
uint32_t rb_addr = dualboot_addr + dualboot_size;
printf("[INFO] RB start address: %#x\n", rb_addr);
footer->of_addr = opt.output == ZEN_DUALBOOT ? of_addr : rb_addr;
footer->rb_addr = rb_addr;
footer->boot_arg = opt.output == ZEN_RECOVERY ? 0xfee1dead : 0xcafebabe;
printf("[INFO] Footer: 0x%08x 0x%08x 0x%08x\n", footer->of_addr, footer->rb_addr,
footer->boot_arg);
/* fix image */
sec_hdr->checksum = edoc_checksum(sec_hdr + 1, sec_hdr->size);
hdr->total_size += extra_size;
return ZEN_SUCCESS;
}
struct player_info_t *get_player_info(enum zen_model_t model)
{
for(int i = 0; zen_players[i].name; i++)
if(strcmp(zen_models[model].model_name, zen_players[i].name) == 0)
return &zen_players[i];
return NULL;
}
enum zen_error_t build_firmware(void *exec, size_t exec_size, void *boot, size_t boot_size,
const char *outfile, struct zen_option_t opt)
{
uint8_t *buffer = exec;
/** find player info */
struct player_info_t *player = get_player_info(opt.model);
if(player == NULL)
errorf(ZEN_UNSUPPORTED, "[ERR] There is no player info for this model\n");
if(player->big_endian)
errorf(ZEN_UNSUPPORTED, "[ERR] Big-endian players are currently unsupported\n");
/** Find Win32 PE .data section */
uint32_t data_ptr;
uint32_t data_size;
enum zen_error_t err = find_pe_data(exec, exec_size, &data_ptr, &data_size);
if(err != ZEN_SUCCESS)
errorf(err, "[ERR] Cannot find .data section\n");
printf("[INFO] .data section is at 0x%x with size 0x%x\n", data_ptr, data_size);
/** look for firmware and key in data section */
uint32_t fw_offset = find_firmware_offset(&buffer[data_ptr], data_size);
if(fw_offset == 0)
errorf(ZEN_FW_INVALID, "[ERR] Couldn't find firmware offset\n");
uint32_t fw_size = le2int(&buffer[data_ptr + fw_offset]);
printf("[INFO] Firmware offset is at 0x%x with size 0x%x\n", data_ptr + fw_offset, fw_size);
const char *fw_key = find_firmware_key(exec, exec_size);
if(fw_key == NULL)
errorf(ZEN_FW_INVALID, "[ERR] Couldn't find firmware key\n");
printf("[INFO] Firmware key is %s\n", fw_key);
/** descramble firmware */
printf("[INFO] Descrambling firmware... ");
if(!crypt_firmware(fw_key, &buffer[data_ptr + fw_offset + 4], fw_size))
errorf(ZEN_ERROR, "Fail!\n");
else
printf("Done!\n");
/** decompress it */
uint8_t *out_buffer = malloc(fw_size * 2);
if(out_buffer == NULL)
errorf(ZEN_ERROR, "[ERR] Couldn't allocate memory");
memset(out_buffer, 0, fw_size * 2);
printf("[INFO] Decompressing firmware... ");
char *err_msg;
if(!inflate_to_buffer(&buffer[data_ptr + fw_offset + 4], fw_size, out_buffer,
fw_size * 2, &err_msg))
errorf(ZEN_ERROR, "Fail!\n[ERR] ZLib error: %s\n", err_msg);
else
printf("Done!\n");
/** check format and resize the buffer */
if(memcmp(out_buffer, "FFIC", 4) != 0)
errorf(ZEN_FW_INVALID, "[ERR] CIFF header doesn't match\n");
uint32_t ciff_size = le2int(&out_buffer[4]) + 8 + 28; /* CIFF block + NULL block*/
printf("[INFO] Total firmware size: %d\n", ciff_size);
out_buffer = realloc(out_buffer, ciff_size);
if(out_buffer == NULL)
errorf(ZEN_ERROR, "[ERR] Cannot resize memory block\n");
/** look for firmware file */
printf("[INFO] Locating encoded block... ");
uint32_t fw_off = 8;
uint8_t *cinf_ptr = NULL;
while(memcmp(&out_buffer[fw_off], " LT\xa9", 4) != 0 && fw_off < ciff_size)
{
if(memcmp(&out_buffer[fw_off], "FNIC", 4) == 0)
{
cinf_ptr = &out_buffer[fw_off + 8];
fw_off += 4 + 4 + 96;
}
else if(memcmp(&out_buffer[fw_off], "ATAD", 4) == 0)
{
fw_off += 4;
fw_off += le2int(&out_buffer[fw_off]);
fw_off += 4;
}
else
errorf(ZEN_FW_INVALID, "Fail!\n[ERR] Unknown block\n");
}
if(fw_off >= ciff_size || memcmp(&out_buffer[fw_off], " LT\xa9", 4) != 0)
errorf(ZEN_FW_INVALID, "Fail!\n[ERR] Couldn't find encoded block\n");
if(!cinf_ptr)
errorf(ZEN_FW_INVALID, "Fail!\n[ERR] Couldn't find CINF\n");
printf("Done!\n");
/** validate player if possible */
printf("[INFO] Checking player model...");
if(player->cinf)
{
char cinf_ascii[96];
for(int j = 0; j < 96; j++)
cinf_ascii[j] = *(unsigned short *)&cinf_ptr[2 * j];
if(strncmp(cinf_ascii, player->cinf, 96) != 0)
errorf(ZEN_FW_MISMATCH, "Fail!\n[ERR] Player mismatch: CINF indicates '%s' instead of '%s'\n",
cinf_ascii, player->cinf);
else
printf("Done!\n");
}
else
printf("Bypass!\n");
/** decrypt firmware */
printf("[INFO] Decrypting encoded block... ");
uint32_t iv[2];
iv[0] = 0;
iv[1] = swap(le2int(&out_buffer[fw_off + 4]));
if(!bf_cbc_decrypt((unsigned char*)player->tl_key, strlen(player->tl_key) + 1,
&out_buffer[fw_off + 8], le2int(&out_buffer[fw_off + 4]), (const unsigned char*)&iv))
errorf(ZEN_ERROR, "Fail!\n[ERR] Couldn't decrypt encoded block\n");
printf("Done!\n");
/** sanity checks on firmware */
uint32_t jrm_size = le2int(&out_buffer[fw_off + 8]);
if(jrm_size > le2int(&out_buffer[fw_off + 4]) * 3)
errorf(ZEN_FW_INVALID, "[ERR] Decrypted length of encoded block is unexpectedly large: 0x%08x\n", jrm_size);
printf("[INFO] Firmware size: %d\n", jrm_size);
uint8_t *jrm = malloc(jrm_size);
if(jrm == NULL)
errorf(ZEN_ERROR, "[ERR] Couldn't allocate memory\n");
memset(buffer, 0, jrm_size);
/** decompress firmware */
printf("[INFO] Decompressing encoded block... ");
if(!cenc_decode(&out_buffer[fw_off + 12], le2int(&out_buffer[fw_off + 4]) - 4, jrm, jrm_size))
errorf(ZEN_ERROR, "Fail!\n[ERR] Couldn't decompress the encoded block\n");
printf("Done!\n");
/** Copy OF because patching might modify it */
void *jrm_save = malloc(jrm_size);
uint32_t jrm_save_size = jrm_size;
if(jrm_save == NULL)
errorf(ZEN_ERROR, "[ERR] Couldn't allocate memory");
memcpy(jrm_save, jrm, jrm_size);
/** Patch firmware */
err = patch_firmware(&jrm, &jrm_size, boot, boot_size, opt);
if(err != ZEN_SUCCESS)
errorf(err, "[ERR] Couldn't patch firmware\n");
/** Rebuild archive */
bool keep_old_bits = opt.output == ZEN_DUALBOOT || opt.output == ZEN_MIXEDBOOT;
bool keep_of = opt.output == ZEN_MIXEDBOOT;
/* if we keep old stuff, keep everything up to LT block, otherwise just CIFF header */
uint32_t off = keep_old_bits ? fw_off : 8;
/* move the rest of the archive if keeping old stuff */
if(keep_old_bits)
{
uint32_t copy_off = fw_off + 8 + le2int(&out_buffer[fw_off + 4]);
uint32_t copy_size = ciff_size - fw_off - 8 - le2int(&out_buffer[fw_off + 4]) - 28;
memmove(&out_buffer[off], &out_buffer[copy_off], copy_size);
off += copy_size;
}
/* if we keep the OF, put a copy of it after renaming it to Hcreativeos.jrm */
if(keep_of)
{
out_buffer = realloc(out_buffer, off + jrm_save_size + 40);
if(out_buffer == NULL)
errorf(ZEN_ERROR, "[ERR] Couldn't resize memory block\n");
printf("[INFO] Renaming encoded block to Hcreativeos.jrm... ");
memcpy(&out_buffer[off], "ATAD", 4);
int2le(jrm_save_size + 32, &out_buffer[off + 4]);
memset(&out_buffer[off + 8], 0, 32);
memcpy(&out_buffer[off + 8], "H\0c\0r\0e\0a\0t\0i\0v\0e\0o\0s\0.\0j\0r\0m", 30);
memcpy(&out_buffer[off + 40], jrm_save, jrm_save_size);
off += jrm_save_size + 40;
printf("Done!\n");
}
/* put modified firmware */
out_buffer = realloc(out_buffer, off + jrm_size + 40);
if(out_buffer == NULL)
errorf(ZEN_ERROR, "[ERR] Couldn't resize memory block\n");
printf("[INFO] Adding Hjukebox2.jrm... ");
memcpy(&out_buffer[off], "ATAD", 4);
int2le(jrm_size + 32, &out_buffer[off + 4]);
memset(&out_buffer[off + 8], 0, 32);
memcpy(&out_buffer[off + 8], "H\0j\0u\0k\0e\0b\0o\0x\0""2\0.\0j\0r\0m", 26);
memcpy(&out_buffer[off + 40], jrm, jrm_size);
off += jrm_size + 40;
printf("Done!\n");
/** fix header */
int2le(off - 8, &out_buffer[4]);
/** update checksum */
printf("[INFO] Updating checksum... ");
out_buffer = realloc(out_buffer, off + 28);
if(out_buffer == NULL)
errorf(ZEN_ERROR, "[ERR] Couldn't resize memory block\n");
memcpy(&out_buffer[off], "LLUN", 4);
int2le(20, &out_buffer[off + 4]);
hmac_sha1((unsigned char*)player->null_key, strlen(player->null_key), out_buffer,
off, &out_buffer[off + 8]);
off += 28;
printf("Done!\n");
err = write_file(outfile, out_buffer, off);
free(jrm);
free(jrm_save);
free(out_buffer);
return err;
}
/* find an entry into zen_sums which matches the MD5 sum of a file */
static enum zen_error_t find_model_by_md5sum(uint8_t file_md5sum[16], int *md5_idx)
{
int i = 0;
while(i < NR_ZEN_SUMS)
{
uint8_t md5[20];
if(strlen(zen_sums[i].md5sum) != 32)
errorf(ZEN_ERROR, "[ERR][INTERNAL] Invalid MD5 sum in zen_sums\n");
for(int j = 0; j < 16; j++)
{
uint8_t a, b;
if(convxdigit(zen_sums[i].md5sum[2 * j], &a) || convxdigit(zen_sums[i].md5sum[2 * j + 1], &b))
errorf(ZEN_ERROR, "[ERR][INTERNAL] Bad checksum format: %s\n", zen_sums[i].md5sum);
md5[j] = (a << 4) | b;
}
if(memcmp(file_md5sum, md5, 16) == 0)
break;
i++;
}
if(i == NR_ZEN_SUMS)
errorf(ZEN_NO_MATCH, "[ERR] MD5 sum doesn't match any known file\n");
*md5_idx = i;
return ZEN_SUCCESS;
}
enum zen_error_t mkzenboot(const char *infile, const char *bootfile,
const char *outfile, struct zen_option_t opt)
{
/* determine firmware model */
void *fw;
size_t fw_size;
enum zen_error_t err = read_file(infile, &fw, &fw_size);
uint8_t file_md5sum[16];
err = compute_md5sum_buf(fw, fw_size, file_md5sum);
if(err != ZEN_SUCCESS)
{
free(fw);
return err;
}
printf("[INFO] MD5 sum of the file: ");
for(int i = 0; i < 16; i++)
printf("%02X ", file_md5sum[i]);
printf("\n");
if(opt.model == MODEL_UNKNOWN)
{
int idx;
err = find_model_by_md5sum(file_md5sum, &idx);
if(err != ZEN_SUCCESS)
{
free(fw);
errorf(err, "[ERR] Cannot determine model type\n");
}
opt.model = zen_sums[idx].model;
printf("[INFO] MD5 matches %s, version %s\n",
zen_models[opt.model].model_name, zen_sums[idx].version);
}
printf("[INFO] Model is: %s\n", zen_models[opt.model].model_name);
/* load rockbox file */
uint8_t *boot;
size_t boot_size;
err = read_file(bootfile, (void **)&boot, &boot_size);
if(err != ZEN_SUCCESS)
{
free(fw);
errorf(err, "[ERR] Cannot read boot file\n");
}
/* validate checksum */
if(memcmp(boot + 4, zen_models[opt.model].rb_model_name, 4) != 0)
{
free(fw);
free(boot);
errorf(ZEN_BOOT_MISMATCH, "[ERR] Boot model mismatch\n");
}
printf("[INFO] Bootloader file matches model\n");
uint32_t sum = zen_models[opt.model].rb_model_num;
for(int i = 8; i < boot_size; i++)
sum += boot[i];
if(sum != be2int(boot))
{
free(fw);
free(boot);
errorf(ZEN_BOOT_CHECKSUM_ERROR, "[ERR] Checksum mismatch\n");
}
printf("[INFO] Bootloader file checksum is correct\n");
/* produce file */
err = build_firmware(fw, fw_size, boot + 8, boot_size - 8, outfile, opt);
free(boot);
free(fw);
return err;
}

View file

@ -0,0 +1,86 @@
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2013 by Amaury Pouly
*
* 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.
*
****************************************************************************/
#ifndef MKZENBOOT_H
#define MKZENBOOT_H
#include <stdbool.h>
#include <stdint.h>
#include <sys/types.h>
#ifdef __cplusplus
extern "C" {
#endif
enum zen_error_t
{
ZEN_SUCCESS = 0,
ZEN_ERROR = -1,
ZEN_OPEN_ERROR = -2,
ZEN_READ_ERROR = -3,
ZEN_NO_MATCH = -4,
ZEN_BOOT_INVALID = -5,
ZEN_BOOT_MISMATCH = -6,
ZEN_BOOT_CHECKSUM_ERROR = -7,
ZEN_DONT_KNOW_HOW_TO_PATCH = -8,
ZEN_WRITE_ERROR = -9,
ZEN_UNSUPPORTED = 10,
ZEN_FW_INVALID = -11,
ZEN_FW_MISMATCH = -12,
ZEN_FIRST_ZENTOOLS_ERROR = -12,
};
enum zen_output_type_t
{
ZEN_DUALBOOT = 0, /* keep all OF data and pack OF+RB into firmware for dualboot */
ZEN_MIXEDBOOT, /* rename OF, keep data, put RB as firmware, use RB bootloader to dualboot */
ZEN_RECOVERY, /* only put rockbox with recovery mode */
ZEN_SINGLEBOOT, /* only put rockbox with recovery mode */
};
/* Supported models */
enum zen_model_t
{
MODEL_UNKNOWN = 0,
MODEL_ZENMOZAIC,
MODEL_ZENV,
MODEL_ZENXFI,
MODEL_ZEN,
/* new models go here */
NUM_MODELS
};
struct zen_option_t
{
bool debug;
enum zen_output_type_t output;
enum zen_model_t model; /* pass MODEL_UNKNOWN to use MD5 knowledge base */
};
enum zen_error_t mkzenboot(const char *infile, const char *bootfile,
const char *outfile, struct zen_option_t opt);
#ifdef __cplusplus
}
#endif
#endif

896
rbutil/mkzenboot/utils.c Normal file
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@ -0,0 +1,896 @@
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 by Maurus Cuelenaere
* Based on zenutils by Rasmus Ry <rasmus.ry{at}gmail.com>
* Copyright (C) 2013 by Amaury Pouly
*
* 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 "utils.h"
#include "md5.h"
#include <zlib.h>
//#include "hmac-sha1.h"
int filesize(FILE* fd)
{
int tmp, tmp2 = ftell(fd);
fseek(fd, 0, SEEK_END);
tmp = ftell(fd);
fseek(fd, tmp2, SEEK_SET);
return tmp;
}
unsigned int le2int(unsigned char* buf)
{
return ((buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0]);
}
unsigned int be2int(unsigned char* buf)
{
return ((buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3]);
}
void int2le(unsigned int val, unsigned char* addr)
{
addr[0] = val & 0xFF;
addr[1] = (val >> 8) & 0xff;
addr[2] = (val >> 16) & 0xff;
addr[3] = (val >> 24) & 0xff;
}
const char* find_firmware_key(const unsigned char* buffer, size_t len)
{
char szkey1[] = "34d1";
size_t cchkey1 = strlen(szkey1);
char szkey2[] = "TbnCboEbn";
size_t cchkey2 = strlen(szkey2);
uint32_t i;
for (i = 0; i < (uint32_t)len; i++)
{
if (len >= cchkey1)
{
if (!strncmp((char*)&buffer[i], szkey1, cchkey1))
return (const char*)&buffer[i];
}
if (len >= cchkey2)
{
if (!strncmp((char*)&buffer[i], szkey2, cchkey2))
return (const char*)&buffer[i];
}
}
return NULL;
}
uint32_t find_firmware_offset(unsigned char* buffer, size_t len)
{
uint32_t i;
for (i = 0; i < (uint32_t)len; i += 0x10)
{
if (buffer[i + sizeof(uint32_t)] != 0
&& buffer[i + sizeof(uint32_t) + 1] != 0
&& buffer[i + sizeof(uint32_t) + 2] != 0
&& buffer[i + sizeof(uint32_t) + 3] != 0)
{
return i;
}
if(i > 0xFF) /* Arbitrary guess */
return 0;
}
return 0;
}
bool crypt_firmware(const char* key, unsigned char* buffer, size_t len)
{
char key_cpy[255];
unsigned int i;
unsigned int tmp = 0;
int key_length = strlen(key);
strcpy(key_cpy, key);
for(i=0; i < strlen(key); i++)
key_cpy[i] = key[i] - 1;
for(i=0; i < len; i++)
{
buffer[i] ^= key_cpy[tmp] | 0x80;
tmp = (tmp + 1) % key_length;
}
return true;
}
bool inflate_to_buffer(const unsigned char *buffer, size_t len, unsigned char* out_buffer, size_t out_len, char** err_msg)
{
/* Initialize Zlib */
z_stream d_stream;
int ret;
d_stream.zalloc = Z_NULL;
d_stream.zfree = Z_NULL;
d_stream.opaque = Z_NULL;
d_stream.next_in = (unsigned char*)buffer;
d_stream.avail_in = len;
ret = inflateInit(&d_stream);
if (ret != Z_OK)
{
*err_msg = d_stream.msg;
return false;
}
d_stream.next_out = out_buffer;
d_stream.avail_out = out_len;
ret = inflate(&d_stream, Z_SYNC_FLUSH);
if(ret < 0)
{
*err_msg = d_stream.msg;
return false;
}
else
inflateEnd(&d_stream);
return true;
}
#define CODE_MASK 0xC0
#define ARGS_MASK 0x3F
#define REPEAT_CODE 0x00
#define BLOCK_CODE 0x40
#define LONG_RUN_CODE 0x80
#define SHORT_RUN_CODE 0xC0
#define BLOCK_ARGS 0x1F
#define BLOCK_MODE 0x20
static void decode_run(unsigned char* dst, uint16_t len, unsigned char val,
int* dstidx)
{
memset(dst + *dstidx, val, len);
*dstidx += len;
}
static void decode_pattern(unsigned char* src, unsigned char* dst,
uint16_t len, int* srcidx, int* dstidx,
bool bdecode, int npasses)
{
int i, j;
for (i = 0; i < npasses; i++)
{
if (bdecode)
{
for (j = 0; j < len; j++)
{
uint16_t c, d;
c = src[*srcidx + j];
d = (c >> 5) & 7;
c = (c << 3) & 0xF8;
src[*srcidx + j] = (unsigned char)(c | d);
}
bdecode = false;
}
memcpy(dst + *dstidx, src + *srcidx, len);
*dstidx += len;
}
*srcidx += len;
}
int cenc_decode(unsigned char* src, int srclen, unsigned char* dst, int dstlen)
{
int i = 0, j = 0;
do
{
uint16_t c, d, e;
c = src[i++];
switch (c & CODE_MASK)
{
case REPEAT_CODE: /* 2 unsigned chars */
d = src[i++];
d = d + 2;
e = (c & ARGS_MASK) + 2;
decode_pattern(src, dst, e, &i, &j, false, d);
break;
case BLOCK_CODE: /* 1/2/3 unsigned chars */
d = c & BLOCK_ARGS;
if (!(c & BLOCK_MODE))
{
e = src[i++];
e = (d << 8) + (e + 0x21);
d = (uint16_t)(i ^ j);
}
else
{
e = d + 1;
d = (uint16_t)(i ^ j);
}
if (d & 1)
{
i++;
}
decode_pattern(src, dst, e, &i, &j, true, 1);
break;
case LONG_RUN_CODE: /* 3 unsigned chars */
d = src[i++];
e = ((c & ARGS_MASK) << 8) + (d + 0x42);
d = src[i++];
d = ((d & 7) << 5) | ((d >> 3) & 0x1F);
decode_run(dst, e, (unsigned char)(d), &j);
break;
case SHORT_RUN_CODE: /* 2 unsigned chars */
d = src[i++];
d = ((d & 3) << 6) | ((d >> 2) & 0x3F);
e = (c & ARGS_MASK) + 2;
decode_run(dst, e, (unsigned char)(d), &j);
break;
};
} while (i < srclen && j < dstlen);
return j;
}
/*
* Copyright (c) 1999, 2000, 2002 Virtual Unlimited B.V.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#define BLOWFISHROUNDS 16
#define BLOWFISHPSIZE (BLOWFISHROUNDS+2)
#define WORDS_BIGENDIAN 0
struct blowfishParam
{
uint32_t p[BLOWFISHPSIZE];
uint32_t s[1024];
uint32_t fdback[2];
};
typedef enum
{
NOCRYPT,
ENCRYPT,
DECRYPT
} cipherOperation;
static inline uint32_t swapu32(uint32_t n)
{
return ( ((n & 0xffU) << 24) |
((n & 0xff00U) << 8) |
((n & 0xff0000U) >> 8) |
((n & 0xff000000U) >> 24) );
}
static uint32_t _bf_p[BLOWFISHPSIZE] = {
0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344,
0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89,
0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917,
0x9216d5d9, 0x8979fb1b
};
static uint32_t _bf_s[1024] = {
0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7,
0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99,
0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16,
0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e,
0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee,
0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013,
0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef,
0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e,
0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60,
0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440,
0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce,
0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a,
0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e,
0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677,
0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193,
0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032,
0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88,
0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239,
0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e,
0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0,
0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3,
0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98,
0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88,
0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe,
0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6,
0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d,
0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b,
0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7,
0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba,
0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463,
0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f,
0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09,
0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3,
0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb,
0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279,
0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8,
0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab,
0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82,
0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db,
0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573,
0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0,
0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b,
0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790,
0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8,
0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4,
0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0,
0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7,
0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c,
0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad,
0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1,
0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299,
0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9,
0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477,
0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf,
0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49,
0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af,
0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa,
0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5,
0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41,
0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915,
0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400,
0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915,
0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664,
0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a,
0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623,
0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266,
0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1,
0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e,
0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6,
0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1,
0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e,
0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1,
0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737,
0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8,
0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff,
0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd,
0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701,
0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7,
0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41,
0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331,
0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf,
0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af,
0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e,
0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87,
0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c,
0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2,
0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16,
0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd,
0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b,
0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509,
0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e,
0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3,
0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f,
0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a,
0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4,
0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960,
0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66,
0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28,
0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802,
0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84,
0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510,
0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf,
0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14,
0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e,
0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50,
0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7,
0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8,
0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281,
0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99,
0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696,
0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128,
0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73,
0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0,
0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0,
0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105,
0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250,
0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3,
0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285,
0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00,
0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061,
0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb,
0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e,
0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735,
0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc,
0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9,
0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340,
0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20,
0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7,
0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934,
0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068,
0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af,
0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840,
0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45,
0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504,
0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a,
0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb,
0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee,
0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6,
0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42,
0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b,
0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2,
0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb,
0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527,
0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b,
0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33,
0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c,
0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3,
0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc,
0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17,
0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564,
0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b,
0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115,
0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922,
0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728,
0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0,
0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e,
0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37,
0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d,
0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804,
0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b,
0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3,
0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb,
0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d,
0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c,
0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350,
0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9,
0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a,
0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe,
0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d,
0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc,
0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f,
0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61,
0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2,
0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9,
0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2,
0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c,
0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e,
0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633,
0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10,
0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169,
0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52,
0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027,
0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5,
0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62,
0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634,
0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76,
0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24,
0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc,
0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4,
0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c,
0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837,
0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0,
0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b,
0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe,
0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b,
0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4,
0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8,
0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6,
0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304,
0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22,
0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4,
0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6,
0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9,
0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59,
0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593,
0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51,
0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28,
0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c,
0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b,
0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28,
0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c,
0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd,
0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a,
0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319,
0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb,
0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f,
0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991,
0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32,
0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680,
0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166,
0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae,
0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb,
0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5,
0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47,
0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370,
0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d,
0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84,
0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048,
0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8,
0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd,
0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9,
0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7,
0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38,
0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f,
0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c,
0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525,
0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1,
0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442,
0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964,
0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e,
0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8,
0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d,
0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f,
0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299,
0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02,
0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc,
0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614,
0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a,
0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6,
0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b,
0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0,
0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060,
0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e,
0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9,
0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f,
0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6
};
#define EROUND(l,r) l ^= *(p++); r ^= ((s[((l>>24)&0xff)+0x000]+s[((l>>16)&0xff)+0x100])^s[((l>>8)&0xff)+0x200])+s[((l>>0)&0xff)+0x300]
#define DROUND(l,r) l ^= *(p--); r ^= ((s[((l>>24)&0xff)+0x000]+s[((l>>16)&0xff)+0x100])^s[((l>>8)&0xff)+0x200])+s[((l>>0)&0xff)+0x300]
static int blowfishEncrypt(struct blowfishParam* bp, uint32_t* dst, const uint32_t* src)
{
#if WORDS_BIGENDIAN
register uint32_t xl = src[0], xr = src[1];
#else
register uint32_t xl = swapu32(src[0]), xr = swapu32(src[1]);
#endif
register uint32_t* p = bp->p;
register uint32_t* s = bp->s;
EROUND(xl, xr); EROUND(xr, xl);
EROUND(xl, xr); EROUND(xr, xl);
EROUND(xl, xr); EROUND(xr, xl);
EROUND(xl, xr); EROUND(xr, xl);
EROUND(xl, xr); EROUND(xr, xl);
EROUND(xl, xr); EROUND(xr, xl);
EROUND(xl, xr); EROUND(xr, xl);
EROUND(xl, xr); EROUND(xr, xl);
#if WORDS_BIGENDIAN
dst[1] = xl ^ *(p++);
dst[0] = xr ^ *(p++);
#else
dst[1] = swapu32(xl ^ *(p++));
dst[0] = swapu32(xr ^ *(p++));
#endif
return 0;
}
static int blowfishDecrypt(struct blowfishParam* bp, uint32_t* dst, const uint32_t* src)
{
#if WORDS_BIGENDIAN
register uint32_t xl = src[0], xr = src[1];
#else
register uint32_t xl = swapu32(src[0]), xr = swapu32(src[1]);
#endif
register uint32_t* p = bp->p+BLOWFISHPSIZE-1;
register uint32_t* s = bp->s;
DROUND(xl, xr); DROUND(xr, xl);
DROUND(xl, xr); DROUND(xr, xl);
DROUND(xl, xr); DROUND(xr, xl);
DROUND(xl, xr); DROUND(xr, xl);
DROUND(xl, xr); DROUND(xr, xl);
DROUND(xl, xr); DROUND(xr, xl);
DROUND(xl, xr); DROUND(xr, xl);
DROUND(xl, xr); DROUND(xr, xl);
#if WORDS_BIGENDIAN
dst[1] = xl ^ *(p--);
dst[0] = xr ^ *(p--);
#else
dst[1] = swapu32(xl ^ *(p--));
dst[0] = swapu32(xr ^ *(p--));
#endif
return 0;
}
static int blowfishSetup(struct blowfishParam* bp, const unsigned char* key, size_t keybits, cipherOperation op)
{
if ((op != ENCRYPT) && (op != DECRYPT))
return -1;
if (((keybits & 7) == 0) && (keybits >= 32) && (keybits <= 448))
{
register uint32_t* p = bp->p;
register uint32_t* s = bp->s;
register unsigned int i, j, k;
uint32_t tmp, work[2];
memcpy(s, _bf_s, 1024 * sizeof(uint32_t));
for (i = 0, k = 0; i < BLOWFISHPSIZE; i++)
{
tmp = 0;
for (j = 0; j < 4; j++)
{
tmp <<= 8;
tmp |= key[k++];
if (k >= (keybits >> 3))
k = 0;
}
p[i] = _bf_p[i] ^ tmp;
}
work[0] = work[1] = 0;
for (i = 0; i < BLOWFISHPSIZE; i += 2, p += 2)
{
blowfishEncrypt(bp, work, work);
#if WORDS_BIGENDIAN
p[0] = work[0];
p[1] = work[1];
#else
p[0] = swapu32(work[0]);
p[1] = swapu32(work[1]);
#endif
}
for (i = 0; i < 1024; i += 2, s += 2)
{
blowfishEncrypt(bp, work, work);
#if WORDS_BIGENDIAN
s[0] = work[0];
s[1] = work[1];
#else
s[0] = swapu32(work[0]);
s[1] = swapu32(work[1]);
#endif
}
/* clear fdback/iv */
bp->fdback[0] = 0;
bp->fdback[1] = 0;
return 0;
}
return -1;
}
static int blowfishSetIV(struct blowfishParam* bp, const unsigned char* iv)
{
if (iv)
memcpy(bp->fdback, iv, 8);
else
memset(bp->fdback, 0, 8);
return 0;
}
#define BLOWFISH_BLOCKSIZE 8
static int blowfishDecryptCBC(struct blowfishParam* bp, uint32_t* dst, const uint32_t* src, unsigned int nblocks)
{
register const unsigned int blockwords = BLOWFISH_BLOCKSIZE >> 2;
register uint32_t* fdback = bp->fdback;
register uint32_t* buf = (uint32_t*) malloc(blockwords * sizeof(uint32_t));
if (buf)
{
while (nblocks > 0)
{
register uint32_t tmp;
register unsigned int i;
blowfishDecrypt(bp, buf, src);
for (i = 0; i < blockwords; i++)
{
tmp = src[i];
dst[i] = buf[i] ^ fdback[i];
fdback[i] = tmp;
}
dst += blockwords;
src += blockwords;
nblocks--;
}
free(buf);
return 0;
}
return -1;
}
bool bf_cbc_decrypt(const unsigned char* key, size_t keylen,
unsigned char* data, size_t datalen,
const unsigned char* iv)
{
struct blowfishParam param;
unsigned char *cipher;
unsigned int nblocks;
if (datalen % BLOWFISH_BLOCKSIZE)
return false;
if (blowfishSetup(&param, key, keylen * 8, ENCRYPT))
return false;
if (blowfishSetIV(&param, iv))
return false;
cipher = malloc(datalen);
memcpy(cipher, data, datalen);
nblocks = datalen / BLOWFISH_BLOCKSIZE;
if (blowfishDecryptCBC(&param, (uint32_t*)data, (uint32_t*)cipher,
nblocks))
{
free(cipher);
return false;
}
free(cipher);
return true;
}
uint32_t swap(uint32_t val)
{
return ((val & 0xFF) << 24)
| ((val & 0xFF00) << 8)
| ((val & 0xFF0000) >> 8)
| ((val & 0xFF000000) >> 24);
}
/* read a file to a buffer */
enum zen_error_t read_file(const char *file, void **buffer, size_t *size)
{
FILE *f = fopen(file, "rb");
if(f == NULL)
{
printf("[ERR] Cannot open file '%s' for reading: %m\n", file);
return ZEN_OPEN_ERROR;
}
fseek(f, 0, SEEK_END);
*size = ftell(f);
fseek(f, 0, SEEK_SET);
*buffer = malloc(*size);
if(fread(*buffer, *size, 1, f) != 1)
{
free(*buffer);
fclose(f);
printf("[ERR] Cannot read file '%s': %m\n", file);
return ZEN_READ_ERROR;
}
fclose(f);
return ZEN_SUCCESS;
}
/* write a file from a buffer */
enum zen_error_t write_file(const char *file, void *buffer, size_t size)
{
FILE *f = fopen(file, "wb");
if(f == NULL)
{
printf("[ERR] Cannot open file '%s' for writing: %m\n", file);
return ZEN_OPEN_ERROR;
}
if(fwrite(buffer, size, 1, f) != 1)
{
fclose(f);
printf("[ERR] Cannot write file '%s': %m\n", file);
return ZEN_WRITE_ERROR;
}
fclose(f);
return ZEN_SUCCESS;
}
/* compute MD5 sum of a buffer */
enum zen_error_t compute_md5sum_buf(void *buf, size_t sz, uint8_t file_md5sum[16])
{
md5_context ctx;
md5_starts(&ctx);
md5_update(&ctx, buf, sz);
md5_finish(&ctx, file_md5sum);
return ZEN_SUCCESS;
}
/* compute MD5 of a file */
enum zen_error_t compute_md5sum(const char *file, uint8_t file_md5sum[16])
{
void *buf;
size_t sz;
enum zen_error_t err = read_file(file, &buf, &sz);
if(err != ZEN_SUCCESS)
return err;
compute_md5sum_buf(buf, sz, file_md5sum);
free(buf);
return ZEN_SUCCESS;
}
enum zen_error_t find_pe_data(void *fw, size_t fw_size, uint32_t *data_ptr, uint32_t *data_size)
{
uint8_t *buffer = fw;
/* Rudimentary Win32 PE reading to find .data section */
if(memcmp(&buffer[0], "MZ", 2) != 0 && memcmp(&buffer[0x118], "PE", 2) != 0)
{
printf("[ERR] Input file isn't an executable\n");
return ZEN_FW_INVALID;
}
*data_ptr = 0, *data_size = 0;
uint32_t start_sec_addr = /*sizeof NT headers */ 0xf8 +
/* address of opt header */*(uint32_t *)&buffer[0x3c];
for(uint32_t i = start_sec_addr; i < 0x1000; i += 0x28)
{
if(strcmp((char*)&buffer[i], ".data") == 0)
{
*data_ptr = le2int(&buffer[i + 0x14]);
*data_size = le2int(&buffer[i + 0x10]);
break;
}
}
if(*data_ptr == 0 || *data_size == 0)
{
printf("[ERR] Couldn't find .data section\n");
return ZEN_FW_INVALID;
}
return ZEN_SUCCESS;
}
int convxdigit(char digit, uint8_t *val)
{
if(digit >= '0' && digit <= '9')
{
*val = digit - '0';
return 0;
}
else if(digit >= 'A' && digit <= 'F')
{
*val = digit - 'A' + 10;
return 0;
}
else if(digit >= 'a' && digit <= 'f')
{
*val = digit - 'a' + 10;
return 0;
}
else
return 1;
}

53
rbutil/mkzenboot/utils.h Normal file
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@ -0,0 +1,53 @@
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2013 by Amaury Pouly
*
* 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.
*
****************************************************************************/
#ifndef __UTILS__
#define __UTILS__
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include "mkzenboot.h"
#include "hmac-sha1.h"
int filesize(FILE* fd);
unsigned int le2int(unsigned char* buf);
unsigned int be2int(unsigned char* buf);
void int2le(unsigned int val, unsigned char* addr);
const char* find_firmware_key(const unsigned char* buffer, size_t len);
uint32_t find_firmware_offset(unsigned char* buffer, size_t len);
bool crypt_firmware(const char* key, unsigned char* buffer, size_t len);
bool inflate_to_buffer(const unsigned char *buffer, size_t len,
unsigned char* out_buffer, size_t out_len, char** err_msg);
int cenc_decode(unsigned char* src, int srclen, unsigned char* dst, int dstlen);
bool bf_cbc_decrypt(const unsigned char* key, size_t keylen, unsigned char* data,
size_t datalen, const unsigned char* iv);
uint32_t swap(uint32_t val);
enum zen_error_t compute_md5sum(const char *file, uint8_t file_md5sum[16]);
enum zen_error_t compute_md5sum_buf(void *buf, size_t sz, uint8_t file_md5sum[16]);
enum zen_error_t read_file(const char *file, void **buffer, size_t *size);
enum zen_error_t write_file(const char *file, void *buffer, size_t size);
enum zen_error_t find_pe_data(void *fw, size_t fw_size, uint32_t *data_ptr, uint32_t *data_size);
int convxdigit(char digit, uint8_t *val);
#endif /* __UTILS__ */