mirror of
https://github.com/wiidev/usbloadergx.git
synced 2024-09-09 09:03:20 +02:00
460 lines
11 KiB
C
460 lines
11 KiB
C
/****************************************************************************
|
||
* USB Loader GX Team
|
||
* openingbnr
|
||
*
|
||
* Extract opening.bnr/banner.bin/sound.bin/icon.bin
|
||
*
|
||
* Copyright 2008 Magicus <magicus@gmail.com>
|
||
* Licensed under the terms of the GNU GPL, version 2
|
||
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||
* Version 1.0 Initial release
|
||
***************************************************************************/
|
||
|
||
#define _GNU_SOURCE
|
||
|
||
#include <ogcsys.h>
|
||
#include <sys/types.h>
|
||
#include <sys/stat.h>
|
||
#include <unistd.h>
|
||
|
||
#include <string.h>
|
||
#include <stdlib.h>
|
||
#include <stdio.h>
|
||
#include <fat.h>
|
||
|
||
#include "MD5.h"
|
||
#include "banner.h"
|
||
|
||
u16 be16(const u8 *p)
|
||
{
|
||
return (p[0] << 8) | p[1];
|
||
}
|
||
|
||
u32 be32(const u8 *p)
|
||
{
|
||
return (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
|
||
}
|
||
|
||
u64 be64(const u8 *p)
|
||
{
|
||
return ((u64)be32(p) << 32) | be32(p + 4);
|
||
}
|
||
|
||
u64 be34(const u8 *p)
|
||
{
|
||
return 4 * (u64)be32(p);
|
||
}
|
||
|
||
void wbe16(u8 *p, u16 x)
|
||
{
|
||
p[0] = x >> 8;
|
||
p[1] = x;
|
||
}
|
||
|
||
void wbe32(u8 *p, u32 x)
|
||
{
|
||
wbe16(p, x >> 16);
|
||
wbe16(p + 2, x);
|
||
}
|
||
|
||
void wbe64(u8 *p, u64 x)
|
||
{
|
||
wbe32(p, x >> 32);
|
||
wbe32(p + 4, x);
|
||
}
|
||
|
||
void md5(u8 *data, u32 len, u8 *hash)
|
||
{
|
||
MD5(hash, data, len);
|
||
}
|
||
|
||
static FILE *fp;
|
||
|
||
typedef struct {
|
||
u8 zeroes[0x40];
|
||
u32 imet; // "IMET"
|
||
u8 zero_six_zero_three[8]; // fixed, unknown purpose
|
||
u32 sizes[3];
|
||
u32 flag1;
|
||
u16 name_jp[0x2a]; // might be empty
|
||
u16 name_en[0x2a];
|
||
u16 name_de[0x2a];
|
||
u16 name_fr[0x2a];
|
||
u16 name_es[0x2a];
|
||
u16 name_it[0x2a];
|
||
u16 name_nl[0x2a];
|
||
u8 zeroes_2[0x348];
|
||
u8 crypto[0x10];
|
||
} imet_data_t;
|
||
|
||
typedef struct {
|
||
u32 imd5_tag; // 0x494D4435 "IMD5";
|
||
u32 size; // size of the rest of part B, starting from next field.
|
||
u8 zeroes[8];
|
||
u8 md5[16];
|
||
u32 payload_tag; // 0x4C5A3737 "LZ77" if this is lz77
|
||
u32 payload_data;
|
||
} imd5_header_t;
|
||
|
||
typedef struct
|
||
{
|
||
u16 type;
|
||
u16 name_offset;
|
||
u32 data_offset; // == absolut offset fr<66>n U.8- headerns b<>rjan
|
||
u32 size; // last included file num for directories
|
||
} U8_node;
|
||
|
||
typedef struct
|
||
{
|
||
u32 tag; // 0x55AA382D "U.8-"
|
||
u32 rootnode_offset; // offset to root_node, always 0x20.
|
||
u32 header_size; // size of header from root_node to end of string table.
|
||
u32 data_offset; // offset to data -- this is rootnode_offset + header_size, aligned to 0x40.
|
||
u8 zeroes[16];
|
||
} U8_archive_header;
|
||
|
||
static void write_file(void* data, size_t size, char* name)
|
||
{
|
||
FILE *out;
|
||
out = fopen(name, "wb");
|
||
fwrite(data, 1, size, out);
|
||
fclose(out);
|
||
}
|
||
|
||
u8* decompress_lz77(u8 *data, size_t data_size, size_t* decompressed_size)
|
||
{
|
||
u8 *data_end;
|
||
u8 *decompressed_data;
|
||
size_t unpacked_size;
|
||
u8 *in_ptr;
|
||
u8 *out_ptr;
|
||
u8 *out_end;
|
||
|
||
in_ptr = data;
|
||
data_end = data + data_size;
|
||
|
||
// Assume this for now and grow when needed
|
||
unpacked_size = data_size;
|
||
|
||
decompressed_data = malloc(unpacked_size);
|
||
out_end = decompressed_data + unpacked_size;
|
||
|
||
out_ptr = decompressed_data;
|
||
|
||
while (in_ptr < data_end) {
|
||
int bit;
|
||
u8 bitmask = *in_ptr;
|
||
|
||
in_ptr++;
|
||
for (bit = 0x80; bit != 0; bit >>= 1) {
|
||
if (bitmask & bit) {
|
||
// Next section is compressed
|
||
u8 rep_length;
|
||
u16 rep_offset;
|
||
|
||
rep_length = (*in_ptr >> 4) + 3;
|
||
rep_offset = *in_ptr & 0x0f;
|
||
in_ptr++;
|
||
rep_offset = *in_ptr | (rep_offset << 8);
|
||
in_ptr++;
|
||
if (out_ptr-decompressed_data < rep_offset) {
|
||
return NULL;
|
||
}
|
||
|
||
for ( ; rep_length > 0; rep_length--) {
|
||
*out_ptr = out_ptr[-rep_offset-1];
|
||
out_ptr++;
|
||
if (out_ptr >= out_end) {
|
||
// Need to grow buffer
|
||
decompressed_data = realloc(decompressed_data, unpacked_size*2);
|
||
out_ptr = decompressed_data + unpacked_size;
|
||
unpacked_size *= 2;
|
||
out_end = decompressed_data + unpacked_size;
|
||
}
|
||
}
|
||
} else {
|
||
// Just copy byte
|
||
*out_ptr = *in_ptr;
|
||
out_ptr++;
|
||
if (out_ptr >= out_end) {
|
||
// Need to grow buffer
|
||
decompressed_data = realloc(decompressed_data, unpacked_size*2);
|
||
out_ptr = decompressed_data + unpacked_size;
|
||
unpacked_size *= 2;
|
||
out_end = decompressed_data + unpacked_size;
|
||
}
|
||
in_ptr++;
|
||
}
|
||
}
|
||
}
|
||
|
||
*decompressed_size = (out_ptr - decompressed_data);
|
||
return decompressed_data;
|
||
}
|
||
|
||
static int write_imd5_lz77(u8* data, size_t size, char* outname)
|
||
{
|
||
imd5_header_t* header = (imd5_header_t*) data;
|
||
u32 tag;
|
||
u32 size_in_imd5;
|
||
u8 md5_calc[16];
|
||
u8 *decompressed_data;
|
||
size_t decompressed_size;
|
||
|
||
tag = be32((u8*) &header->imd5_tag);
|
||
if (tag != 0x494D4435) {
|
||
return -4;
|
||
}
|
||
|
||
md5(data+32, size-32, md5_calc);
|
||
if (memcmp(&header->md5, md5_calc, 0x10)) {
|
||
return -5;
|
||
}
|
||
|
||
size_in_imd5 = be32((u8*) &header->size);
|
||
if (size_in_imd5 != size - 32) {
|
||
return -6;
|
||
}
|
||
|
||
tag = be32((u8*) &header->payload_tag);
|
||
if (tag == 0x4C5A3737) {
|
||
// "LZ77" - uncompress
|
||
decompressed_data = decompress_lz77(data + sizeof(imd5_header_t), size - sizeof(imd5_header_t), &decompressed_size);
|
||
if(decompressed_data == NULL)
|
||
return -7;
|
||
write_file(decompressed_data, decompressed_size, outname);
|
||
//printf(", uncompressed %d bytes, md5 ok", decompressed_size);
|
||
|
||
free(decompressed_data);
|
||
} else {
|
||
write_file(&header->payload_tag, size-32, outname);
|
||
//printf(", md5 ok");
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
static int do_U8_archive(void)
|
||
{
|
||
U8_archive_header header;
|
||
U8_node root_node;
|
||
u32 tag;
|
||
u32 num_nodes;
|
||
U8_node* nodes;
|
||
u8* string_table;
|
||
size_t rest_size;
|
||
unsigned int i;
|
||
u32 data_offset;
|
||
u32 current_offset;
|
||
u16 dir_stack[16];
|
||
int dir_index = 0;
|
||
|
||
fread(&header, 1, sizeof header, fp);
|
||
tag = be32((u8*) &header.tag);
|
||
if (tag != 0x55AA382D) {
|
||
return -1;
|
||
}
|
||
|
||
fread(&root_node, 1, sizeof(root_node), fp);
|
||
num_nodes = be32((u8*) &root_node.size) - 1;
|
||
//printf("Number of files: %d\n", num_nodes);
|
||
|
||
nodes = malloc(sizeof(U8_node) * (num_nodes));
|
||
fread(nodes, 1, num_nodes * sizeof(U8_node), fp);
|
||
|
||
data_offset = be32((u8*) &header.data_offset);
|
||
rest_size = data_offset - sizeof(header) - (num_nodes+1)*sizeof(U8_node);
|
||
|
||
string_table = malloc(rest_size);
|
||
fread(string_table, 1, rest_size, fp);
|
||
current_offset = data_offset;
|
||
|
||
for (i = 0; i < num_nodes; i++) {
|
||
U8_node* node = &nodes[i];
|
||
u16 type = be16((u8*)&node->type);
|
||
u16 name_offset = be16((u8*)&node->name_offset);
|
||
u32 my_data_offset = be32((u8*)&node->data_offset);
|
||
u32 size = be32((u8*)&node->size);
|
||
char* name = (char*) &string_table[name_offset];
|
||
u8* file_data;
|
||
|
||
if (type == 0x0100) {
|
||
// Directory
|
||
mkdir(name, 0777);
|
||
chdir(name);
|
||
dir_stack[++dir_index] = size;
|
||
//printf("%*s%s/\n", dir_index, "", name);
|
||
} else {
|
||
// Normal file
|
||
u8 padding[32];
|
||
|
||
if (type != 0x0000) {
|
||
return -2;
|
||
}
|
||
|
||
if (current_offset < my_data_offset) {
|
||
int diff = my_data_offset - current_offset;
|
||
|
||
if (diff > 32) {
|
||
return -3;
|
||
}
|
||
fread(padding, 1, diff, fp);
|
||
current_offset += diff;
|
||
}
|
||
|
||
file_data = malloc(size);
|
||
fread(file_data, 1, size, fp);
|
||
//printf("%*s %s (%d bytes", dir_index, "", name, size);
|
||
int result;
|
||
result = write_imd5_lz77(file_data, size, name);
|
||
if(result < 0)
|
||
return result;
|
||
//printf(")\n");
|
||
current_offset += size;
|
||
}
|
||
|
||
while (dir_stack[dir_index] == i+2 && dir_index > 0) {
|
||
chdir("..");
|
||
dir_index--;
|
||
}
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
static void do_imet_header(void)
|
||
{
|
||
imet_data_t header;
|
||
|
||
fread(&header, 1, sizeof header, fp);
|
||
|
||
write_file(&header, sizeof(header), "header.imet");
|
||
}
|
||
|
||
void do_U8_archivebanner(FILE *fp)
|
||
{
|
||
U8_archive_header header;
|
||
U8_node root_node;
|
||
u32 tag;
|
||
u32 num_nodes;
|
||
U8_node* nodes;
|
||
u8* string_table;
|
||
size_t rest_size;
|
||
unsigned int i;
|
||
u32 data_offset;
|
||
u16 dir_stack[16];
|
||
int dir_index = 0;
|
||
|
||
fread(&header, 1, sizeof header, fp);
|
||
tag = be32((u8*) &header.tag);
|
||
if (tag != 0x55AA382D) {
|
||
//printf("No U8 tag");
|
||
exit(0);
|
||
}
|
||
|
||
fread(&root_node, 1, sizeof(root_node), fp);
|
||
num_nodes = be32((u8*) &root_node.size) - 1;
|
||
printf("Number of files: %d\n", num_nodes);
|
||
|
||
nodes = malloc(sizeof(U8_node) * (num_nodes));
|
||
fread(nodes, 1, num_nodes * sizeof(U8_node), fp);
|
||
|
||
data_offset = be32((u8*) &header.data_offset);
|
||
rest_size = data_offset - sizeof(header) - (num_nodes+1)*sizeof(U8_node);
|
||
|
||
string_table = malloc(rest_size);
|
||
fread(string_table, 1, rest_size, fp);
|
||
|
||
for (i = 0; i < num_nodes; i++) {
|
||
U8_node* node = &nodes[i];
|
||
u16 type = be16((u8*)&node->type);
|
||
u16 name_offset = be16((u8*)&node->name_offset);
|
||
u32 my_data_offset = be32((u8*)&node->data_offset);
|
||
u32 size = be32((u8*)&node->size);
|
||
char* name = (char*) &string_table[name_offset];
|
||
u8* file_data;
|
||
|
||
if (type == 0x0100) {
|
||
// Directory
|
||
mkdir(name, 0777);
|
||
chdir(name);
|
||
dir_stack[++dir_index] = size;
|
||
//printf("%*s%s/\n", dir_index, "", name);
|
||
} else {
|
||
// Normal file
|
||
|
||
if (type != 0x0000) {
|
||
printf("Unknown type");
|
||
exit(0);
|
||
}
|
||
|
||
fseek(fp, my_data_offset, SEEK_SET);
|
||
file_data = malloc(size);
|
||
fread(file_data, 1, size, fp);
|
||
write_file(file_data, size, name);
|
||
free(file_data);
|
||
//printf("%*s %s (%d bytes)\n", dir_index, "", name, size);
|
||
}
|
||
|
||
while (dir_stack[dir_index] == i+2 && dir_index > 0) {
|
||
chdir("..");
|
||
dir_index--;
|
||
}
|
||
}
|
||
}
|
||
|
||
int extractbnrfile(const char * filepath, const char * destpath)
|
||
{
|
||
int ret;
|
||
|
||
fp = fopen(filepath, "rb");
|
||
|
||
mkdir(destpath, 0777);
|
||
chdir(destpath);
|
||
|
||
do_imet_header();
|
||
ret = do_U8_archive();
|
||
|
||
fclose(fp);
|
||
|
||
return ret;
|
||
}
|
||
|
||
int unpackBin(const char * filename,const char * outdir)
|
||
{
|
||
FILE *fp;
|
||
fp = fopen(filename,"rb");
|
||
|
||
if(fp!=NULL)
|
||
{
|
||
mkdir(outdir, 0777);
|
||
chdir(outdir);
|
||
|
||
do_U8_archivebanner(fp);
|
||
fclose(fp);
|
||
return 1;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
int unpackBanner(char * gameid, char * outdir)
|
||
{
|
||
s32 ret = dump_banner(gameid,"SD:/opening.bnr");
|
||
if (ret != 1) return -1;
|
||
|
||
ret = extractbnrfile("SD:/opening.bnr","SD:/neu");
|
||
if (ret != 0) return -1;
|
||
remove("SD:/opening.bnr");
|
||
char iconpath[60];
|
||
snprintf(iconpath,sizeof(iconpath),"%s/meta/icon.bin",outdir);
|
||
ret = unpackBin(iconpath,"SD:/icon");
|
||
if (ret != 1) return -1;
|
||
|
||
if (unlink("/neu/meta/banner.bin") == -1) return -1;
|
||
if (unlink("/neu/meta/icon.bin") == -1) return -1;
|
||
if (unlink("/neu/meta/sound.bin") == -1) return -1;
|
||
if (unlink("/neu/header.imet") == -1) return -1;
|
||
if (unlink("/neu/meta") == -1) return -1;
|
||
if (unlink("/neu") == -1) return -1;
|
||
|
||
return 1;
|
||
}
|