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Moved Banner stuff in own directory and added extraction

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thedarkness1981 2009-07-14 14:28:17 +00:00
parent 57f0ce0ed4
commit 6937ff5a51
11 changed files with 1541 additions and 24 deletions
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Makefile
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@ -19,7 +19,7 @@ BUILD := build
SOURCES := source source/libwiigui source/images source/fonts source/sounds \
source/libwbfs source/unzip source/language source/mload source/patches \
source/usbloader source/xml source/network source/settings source/prompts \
source/ramdisc source/wad
source/ramdisc source/wad source/banner
INCLUDES := source
SVNDEV := -D'SVN_REV="$(shell svnversion -n ..)"'

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source/banner/MD5.c Normal file
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/* ========================================================================== **
*
* MD5.c
*
* Copyright:
* Copyright (C) 2003-2005 by Christopher R. Hertel
*
* Email: crh@ubiqx.mn.org
*
* $Id: MD5.c,v 0.6 2005/06/08 18:35:59 crh Exp $
*
*
* Modified by dimok
*
* -------------------------------------------------------------------------- **
*
* Description:
* Implements the MD5 hash algorithm, as described in RFC 1321.
*
* -------------------------------------------------------------------------- **
*
* License:
*
* 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
*
* -------------------------------------------------------------------------- **
*
* Notes:
*
* None of this will make any sense unless you're studying RFC 1321 as you
* read the code.
*
* MD5 is described in RFC 1321.
* The MD*4* algorithm is described in RFC 1320 (that's 1321 - 1).
* MD5 is very similar to MD4, but not quite similar enough to justify
* putting the two into a single module. Besides, I wanted to add a few
* extra functions to this one to expand its usability.
*
* There are three primary motivations for this particular implementation.
* 1) Programmer's pride. I wanted to be able to say I'd done it, and I
* wanted to learn from the experience.
* 2) Portability. I wanted an implementation that I knew to be portable
* to a reasonable number of platforms. In particular, the algorithm is
* designed with little-endian platforms in mind, but I wanted an
* endian-agnostic implementation.
* 3) Compactness. While not an overriding goal, I thought it worth-while
* to see if I could reduce the overall size of the result. This is in
* keeping with my hopes that this library will be suitable for use in
* some embedded environments.
* Beyond that, cleanliness and clarity are always worth pursuing.
*
* As mentioned above, the code really only makes sense if you are familiar
* with the MD5 algorithm or are using RFC 1321 as a guide. This code is
* quirky, however, so you'll want to be reading carefully.
*
* Yeah...most of the comments are cut-and-paste from my MD4 implementation.
*
* -------------------------------------------------------------------------- **
*
* References:
* IETF RFC 1321: The MD5 Message-Digest Algorithm
* Ron Rivest. IETF, April, 1992
*
* ========================================================================== **
*/
#include <stdint.h>
#include <stddef.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <malloc.h>
#include <ogcsys.h>
#include "MD5.h"
/* -------------------------------------------------------------------------- **
* Static Constants:
*
* K[][] - In round one, the values of k (which are used to index
* particular four-byte sequences in the input) are simply
* sequential. In later rounds, however, they are a bit more
* varied. Rather than calculate the values of k (which may
* or may not be possible--I haven't though about it) the
* values are stored in this array.
*
* S[][] - In each round there is a left rotate operation performed as
* part of the 16 permutations. The number of bits varies in
* a repeating patter. This array keeps track of the patterns
* used in each round.
*
* T[][] - There are four rounds of 16 permutations for a total of 64.
* In each of these 64 permutation operations, a different
* constant value is added to the mix. The constants are
* based on the sine function...read RFC 1321 for more detail.
* In any case, the correct constants are stored in the T[][]
* array. They're divided up into four groups of 16.
*/
static const uint8_t K[3][16] =
{
/* Round 1: skipped (since it is simply sequential). */
{ 1, 6, 11, 0, 5, 10, 15, 4, 9, 14, 3, 8, 13, 2, 7, 12 }, /* R2 */
{ 5, 8, 11, 14, 1, 4, 7, 10, 13, 0, 3, 6, 9, 12, 15, 2 }, /* R3 */
{ 0, 7, 14, 5, 12, 3, 10, 1, 8, 15, 6, 13, 4, 11, 2, 9 } /* R4 */
};
static const uint8_t S[4][4] =
{
{ 7, 12, 17, 22 }, /* Round 1 */
{ 5, 9, 14, 20 }, /* Round 2 */
{ 4, 11, 16, 23 }, /* Round 3 */
{ 6, 10, 15, 21 } /* Round 4 */
};
static const uint32_t T[4][16] =
{
{ 0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee, /* Round 1 */
0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501,
0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be,
0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821 },
{ 0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa, /* Round 2 */
0xd62f105d, 0x02441453, 0xd8a1e681, 0xe7d3fbc8,
0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed,
0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a },
{ 0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c, /* Round 3 */
0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70,
0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x04881d05,
0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665 },
{ 0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039, /* Round 4 */
0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1,
0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1,
0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391 },
};
/* -------------------------------------------------------------------------- **
* Macros:
* md5F(), md5G(), md5H(), and md5I() are described in RFC 1321.
* All of these operations are bitwise, and so not impacted by endian-ness.
*
* GetLongByte()
* Extract one byte from a (32-bit) longword. A value of 0 for <idx>
* indicates the lowest order byte, while 3 indicates the highest order
* byte.
*
*/
#define md5F( X, Y, Z ) ( ((X) & (Y)) | ((~(X)) & (Z)) )
#define md5G( X, Y, Z ) ( ((X) & (Z)) | ((Y) & (~(Z))) )
#define md5H( X, Y, Z ) ( (X) ^ (Y) ^ (Z) )
#define md5I( X, Y, Z ) ( (Y) ^ ((X) | (~(Z))) )
#define GetLongByte( L, idx ) ((unsigned char)(( L >> (((idx) & 0x03) << 3) ) & 0xFF))
/* -------------------------------------------------------------------------- **
* Static Functions:
*/
static void Permute( uint32_t ABCD[4], const unsigned char block[64] )
/* ------------------------------------------------------------------------ **
* Permute the ABCD "registers" using the 64-byte <block> as a driver.
*
* Input: ABCD - Pointer to an array of four unsigned longwords.
* block - An array of bytes, 64 bytes in size.
*
* Output: none.
*
* Notes: The MD5 algorithm operates on a set of four longwords stored
* (conceptually) in four "registers". It is easy to imagine a
* simple MD4/5 chip that would operate this way. In any case,
* the mangling of the contents of those registers is driven by
* the input message. The message is chopped and finally padded
* into 64-byte chunks and each chunk is used to manipulate the
* contents of the registers.
*
* The MD5 Algorithm calls for padding the input to ensure that
* it is a multiple of 64 bytes in length. The last 16 bytes
* of the padding space are used to store the message length
* (the length of the original message, before padding, expressed
* in terms of bits). If there is not enough room for 16 bytes
* worth of bitcount (eg., if the original message was 122 bytes
* long) then the block is padded to the end with zeros and
* passed to this function. Then *another* block is filled with
* zeros except for the last 16 bytes which contain the length.
*
* Oh... and the algorithm requires that there be at least one
* padding byte. The first padding byte has a value of 0x80,
* and any others are 0x00.
*
* ------------------------------------------------------------------------ **
*/
{
int round;
int i, j;
uint8_t s;
uint32_t a, b, c, d;
uint32_t KeepABCD[4];
uint32_t X[16];
/* Store the current ABCD values for later re-use.
*/
for( i = 0; i < 4; i++ )
KeepABCD[i] = ABCD[i];
/* Convert the input block into an array of unsigned longs, taking care
* to read the block in Little Endian order (the algorithm assumes this).
* The uint32_t values are then handled in host order.
*/
for( i = 0, j = 0; i < 16; i++ )
{
X[i] = (uint32_t)block[j++];
X[i] |= ((uint32_t)block[j++] << 8);
X[i] |= ((uint32_t)block[j++] << 16);
X[i] |= ((uint32_t)block[j++] << 24);
}
/* This loop performs the four rounds of permutations.
* The rounds are each very similar. The differences are in three areas:
* - The function (F, G, H, or I) used to perform bitwise permutations
* on the registers,
* - The order in which values from X[] are chosen.
* - Changes to the number of bits by which the registers are rotated.
* This implementation uses a switch statement to deal with some of the
* differences between rounds. Other differences are handled by storing
* values in arrays and using the round number to select the correct set
* of values.
*
* (My implementation appears to be a poor compromise between speed, size,
* and clarity. Ugh. [crh])
*/
for( round = 0; round < 4; round++ )
{
for( i = 0; i < 16; i++ )
{
j = (4 - (i % 4)) & 0x3; /* <j> handles the rotation of ABCD. */
s = S[round][i%4]; /* <s> is the bit shift for this iteration. */
b = ABCD[(j+1) & 0x3]; /* Copy the b,c,d values per ABCD rotation. */
c = ABCD[(j+2) & 0x3]; /* This isn't really necessary, it just looks */
d = ABCD[(j+3) & 0x3]; /* clean & will hopefully be optimized away. */
/* The actual perumation function.
* This is broken out to minimize the code within the switch().
*/
switch( round )
{
case 0:
/* round 1 */
a = md5F( b, c, d ) + X[i];
break;
case 1:
/* round 2 */
a = md5G( b, c, d ) + X[ K[0][i] ];
break;
case 2:
/* round 3 */
a = md5H( b, c, d ) + X[ K[1][i] ];
break;
default:
/* round 4 */
a = md5I( b, c, d ) + X[ K[2][i] ];
break;
}
a = 0xFFFFFFFF & ( ABCD[j] + a + T[round][i] );
ABCD[j] = b + (0xFFFFFFFF & (( a << s ) | ( a >> (32 - s) )));
}
}
/* Use the stored original A, B, C, D values to perform
* one last convolution.
*/
for( i = 0; i < 4; i++ )
ABCD[i] = 0xFFFFFFFF & ( ABCD[i] + KeepABCD[i] );
} /* Permute */
/* -------------------------------------------------------------------------- **
* Functions:
*/
auth_md5Ctx *auth_md5InitCtx( auth_md5Ctx *ctx )
/* ------------------------------------------------------------------------ **
* Initialize an MD5 context.
*
* Input: ctx - A pointer to the MD5 context structure to be initialized.
* Contexts are typically created thusly:
* ctx = (auth_md5Ctx *)malloc( sizeof(auth_md5Ctx) );
*
* Output: A pointer to the initialized context (same as <ctx>).
*
* Notes: The purpose of the context is to make it possible to generate
* an MD5 Message Digest in stages, rather than having to pass a
* single large block to a single MD5 function. The context
* structure keeps track of various bits of state information.
*
* Once the context is initialized, the blocks of message data
* are passed to the <auth_md5SumCtx()> function. Once the
* final bit of data has been handed to <auth_md5SumCtx()> the
* context can be closed out by calling <auth_md5CloseCtx()>,
* which also calculates the final MD5 result.
*
* Don't forget to free an allocated context structure when
* you've finished using it.
*
* See Also: <auth_md5SumCtx()>, <auth_md5CloseCtx()>
*
* ------------------------------------------------------------------------ **
*/
{
ctx->len = 0;
ctx->b_used = 0;
ctx->ABCD[0] = 0x67452301; /* The array ABCD[] contains the four 4-byte */
ctx->ABCD[1] = 0xefcdab89; /* "registers" that are manipulated to */
ctx->ABCD[2] = 0x98badcfe; /* produce the MD5 digest. The input acts */
ctx->ABCD[3] = 0x10325476; /* upon the registers, not the other way */
/* 'round. The initial values are those */
/* given in RFC 1321 (pg. 4). Note, however, that RFC 1321 */
/* provides these values as bytes, not as longwords, and the */
/* bytes are arranged in little-endian order as if they were */
/* the bytes of (little endian) 32-bit ints. That's */
/* confusing as all getout (to me, anyway). The values given */
/* here are provided as 32-bit values in C language format, */
/* so they are endian-agnostic. */
return( ctx );
} /* auth_md5InitCtx */
auth_md5Ctx *auth_md5SumCtx( auth_md5Ctx *ctx,
const unsigned char *src,
const int len )
/* ------------------------------------------------------------------------ **
* Build an MD5 Message Digest within the given context.
*
* Input: ctx - Pointer to the context in which the MD5 sum is being
* built.
* src - A chunk of source data. This will be used to drive
* the MD5 algorithm.
* len - The number of bytes in <src>.
*
* Output: A pointer to the updated context (same as <ctx>).
*
* See Also: <auth_md5InitCtx()>, <auth_md5CloseCtx()>, <auth_md5Sum()>
*
* ------------------------------------------------------------------------ **
*/
{
int i;
/* Add the new block's length to the total length.
*/
ctx->len += (uint32_t)len;
/* Copy the new block's data into the context block.
* Call the Permute() function whenever the context block is full.
*/
for( i = 0; i < len; i++ )
{
ctx->block[ ctx->b_used ] = src[i];
(ctx->b_used)++;
if( 64 == ctx->b_used )
{
Permute( ctx->ABCD, ctx->block );
ctx->b_used = 0;
}
}
/* Return the updated context.
*/
return( ctx );
} /* auth_md5SumCtx */
auth_md5Ctx *auth_md5CloseCtx( auth_md5Ctx *ctx, unsigned char *dst )
/* ------------------------------------------------------------------------ **
* Close an MD5 Message Digest context and generate the final MD5 sum.
*
* Input: ctx - Pointer to the context in which the MD5 sum is being
* built.
* dst - A pointer to at least 16 bytes of memory, which will
* receive the finished MD5 sum.
*
* Output: A pointer to the closed context (same as <ctx>).
* You might use this to free a malloc'd context structure. :)
*
* Notes: The context (<ctx>) is returned in an undefined state.
* It must be re-initialized before re-use.
*
* See Also: <auth_md5InitCtx()>, <auth_md5SumCtx()>
*
* ------------------------------------------------------------------------ **
*/
{
int i;
uint32_t l;
/* Add the required 0x80 padding initiator byte.
* The auth_md5SumCtx() function always permutes and resets the context
* block when it gets full, so we know that there must be at least one
* free byte in the context block.
*/
ctx->block[ctx->b_used] = 0x80;
(ctx->b_used)++;
/* Zero out any remaining free bytes in the context block.
*/
for( i = ctx->b_used; i < 64; i++ )
ctx->block[i] = 0;
/* We need 8 bytes to store the length field.
* If we don't have 8, call Permute() and reset the context block.
*/
if( 56 < ctx->b_used )
{
Permute( ctx->ABCD, ctx->block );
for( i = 0; i < 64; i++ )
ctx->block[i] = 0;
}
/* Add the total length and perform the final perumation.
* Note: The 60'th byte is read from the *original* <ctx->len> value
* and shifted to the correct position. This neatly avoids
* any MAXINT numeric overflow issues.
*/
l = ctx->len << 3;
for( i = 0; i < 4; i++ )
ctx->block[56+i] |= GetLongByte( l, i );
ctx->block[60] = ((GetLongByte( ctx->len, 3 ) & 0xE0) >> 5); /* See Above! */
Permute( ctx->ABCD, ctx->block );
/* Now copy the result into the output buffer and we're done.
*/
for( i = 0; i < 4; i++ )
{
dst[ 0+i] = GetLongByte( ctx->ABCD[0], i );
dst[ 4+i] = GetLongByte( ctx->ABCD[1], i );
dst[ 8+i] = GetLongByte( ctx->ABCD[2], i );
dst[12+i] = GetLongByte( ctx->ABCD[3], i );
}
/* Return the context.
* This is done for compatibility with the other auth_md5*Ctx() functions.
*/
return( ctx );
} /* auth_md5CloseCtx */
unsigned char * MD5(unsigned char *dst, const unsigned char *src, const int len )
/* ------------------------------------------------------------------------ **
* Compute an MD5 message digest.
*
* Input: dst - Destination buffer into which the result will be written.
* Must be 16 bytes, minimum.
* src - Source data block to be MD5'd.
* len - The length, in bytes, of the source block.
* (Note that the length is given in bytes, not bits.)
*
* Output: A pointer to <dst>, which will contain the calculated 16-byte
* MD5 message digest.
*
* Notes: This function is a shortcut. It takes a single input block.
* For more drawn-out operations, see <auth_md5InitCtx()>.
*
* This function is interface-compatible with the
* <auth_md4Sum()> function in the MD4 module.
*
* The MD5 algorithm is designed to work on data with an
* arbitrary *bit* length. Most implementations, this one
* included, handle the input data in byte-sized chunks.
*
* The MD5 algorithm does much of its work using four-byte
* words, and so can be tuned for speed based on the endian-ness
* of the host. This implementation is intended to be
* endian-neutral, which may make it a teeny bit slower than
* others. ...maybe.
*
* See Also: <auth_md5InitCtx()>
*
* ------------------------------------------------------------------------ **
*/
{
auth_md5Ctx ctx[1];
(void)auth_md5InitCtx( ctx ); /* Open a context. */
(void)auth_md5SumCtx( ctx, src, len ); /* Pass only one block. */
(void)auth_md5CloseCtx( ctx, dst ); /* Close the context. */
return( dst ); /* Makes life easy. */
} /* auth_md5Sum */
unsigned char * MD5fromFile(unsigned char *dst, const char *src)
/* ------------------------------------------------------------------------ **
* Compute an MD5 message digest.
*
* Input: dst - Destination buffer into which the result will be written.
* Must be 16 bytes, minimum.
* src - filepath of the file to be checked
*
* Output: A pointer to <dst>, which will contain the calculated 16-byte
* MD5 message digest.
*
* Notes: This function is a shortcut. It takes a single input block.
* For more drawn-out operations, see <auth_md5InitCtx()>.
*
* This function is interface-compatible with the
* <auth_md4Sum()> function in the MD4 module.
*
* The MD5 algorithm is designed to work on data with an
* arbitrary *bit* length. Most implementations, this one
* included, handle the input data in byte-sized chunks.
*
* The MD5 algorithm does much of its work using four-byte
* words, and so can be tuned for speed based on the endian-ness
* of the host. This implementation is intended to be
* endian-neutral, which may make it a teeny bit slower than
* others. ...maybe.
*
* See Also: <auth_md5InitCtx()>
*
* ------------------------------------------------------------------------ **
*/
{
auth_md5Ctx ctx[1];
FILE * file;
u32 blksize = 0;
u32 read = 0;
file = fopen(src, "rb");
if (file==NULL){
return NULL;
}
(void)auth_md5InitCtx( ctx ); /* Open a context. */
fseek (file , 0 , SEEK_END);
u64 filesize = ftell(file);
rewind (file);
if(filesize < 1048576) //1MB cache for files bigger than 1 MB
blksize = filesize;
else
blksize = 1048576;
unsigned char * buffer = malloc(blksize);
if(buffer == NULL){
//no memory
fclose(file);
return NULL;
}
do
{
read = fread(buffer, 1, blksize, file);
(void)auth_md5SumCtx( ctx, buffer, read ); /* Pass only one block. */
} while(read > 0);
fclose(file);
free(buffer);
(void)auth_md5CloseCtx( ctx, dst ); /* Close the context. */
return( dst ); /* Makes life easy. */
} /* auth_md5Sum */
/* ========================================================================== */

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#ifndef MD5_H
#define MD5_H
#ifdef __cplusplus
extern "C"
{
#endif
/* ========================================================================== **
*
* MD5.h
*
* Copyright:
* Copyright (C) 2003-2005 by Christopher R. Hertel
*
* Email: crh@ubiqx.mn.org
*
* $Id: MD5.h,v 0.6 2005/06/08 18:35:59 crh Exp $
*
* -------------------------------------------------------------------------- **
*
* Description:
* Implements the MD5 hash algorithm, as described in RFC 1321.
*
* -------------------------------------------------------------------------- **
*
* License:
*
* 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
*
* -------------------------------------------------------------------------- **
*
* Notes:
*
* None of this will make any sense unless you're studying RFC 1321 as you
* read the code.
*
* MD5 is described in RFC 1321.
* The MD*4* algorithm is described in RFC 1320 (that's 1321 - 1).
* MD5 is very similar to MD4, but not quite similar enough to justify
* putting the two into a single module. Besides, I wanted to add a few
* extra functions to this one to expand its usability.
*
* There are three primary motivations for this particular implementation.
* 1) Programmer's pride. I wanted to be able to say I'd done it, and I
* wanted to learn from the experience.
* 2) Portability. I wanted an implementation that I knew to be portable
* to a reasonable number of platforms. In particular, the algorithm is
* designed with little-endian platforms in mind, but I wanted an
* endian-agnostic implementation.
* 3) Compactness. While not an overriding goal, I thought it worth-while
* to see if I could reduce the overall size of the result. This is in
* keeping with my hopes that this library will be suitable for use in
* some embedded environments.
* Beyond that, cleanliness and clarity are always worth pursuing.
*
* As mentioned above, the code really only makes sense if you are familiar
* with the MD5 algorithm or are using RFC 1321 as a guide. This code is
* quirky, however, so you'll want to be reading carefully.
*
* Yeah...most of the comments are cut-and-paste from my MD4 implementation.
*
* -------------------------------------------------------------------------- **
*
* References:
* IETF RFC 1321: The MD5 Message-Digest Algorithm
* Ron Rivest. IETF, April, 1992
*
* ========================================================================== **
*/
/* -------------------------------------------------------------------------- **
* Typedefs:
*/
typedef struct
{
uint32_t len;
uint32_t ABCD[4];
int b_used;
unsigned char block[64];
} auth_md5Ctx;
/* -------------------------------------------------------------------------- **
* Functions:
*/
auth_md5Ctx *auth_md5InitCtx( auth_md5Ctx *ctx );
/* ------------------------------------------------------------------------ **
* Initialize an MD5 context.
*
* Input: ctx - A pointer to the MD5 context structure to be initialized.
* Contexts are typically created thusly:
* ctx = (auth_md5Ctx *)malloc( sizeof(auth_md5Ctx) );
*
* Output: A pointer to the initialized context (same as <ctx>).
*
* Notes: The purpose of the context is to make it possible to generate
* an MD5 Message Digest in stages, rather than having to pass a
* single large block to a single MD5 function. The context
* structure keeps track of various bits of state information.
*
* Once the context is initialized, the blocks of message data
* are passed to the <auth_md5SumCtx()> function. Once the
* final bit of data has been handed to <auth_md5SumCtx()> the
* context can be closed out by calling <auth_md5CloseCtx()>,
* which also calculates the final MD5 result.
*
* Don't forget to free an allocated context structure when
* you've finished using it.
*
* See Also: <auth_md5SumCtx()>, <auth_md5CloseCtx()>
*
* ------------------------------------------------------------------------ **
*/
auth_md5Ctx *auth_md5SumCtx( auth_md5Ctx *ctx,
const unsigned char *src,
const int len );
/* ------------------------------------------------------------------------ **
* Build an MD5 Message Digest within the given context.
*
* Input: ctx - Pointer to the context in which the MD5 sum is being
* built.
* src - A chunk of source data. This will be used to drive
* the MD5 algorithm.
* len - The number of bytes in <src>.
*
* Output: A pointer to the updated context (same as <ctx>).
*
* See Also: <auth_md5InitCtx()>, <auth_md5CloseCtx()>, <auth_md5Sum()>
*
* ------------------------------------------------------------------------ **
*/
auth_md5Ctx *auth_md5CloseCtx( auth_md5Ctx *ctx, unsigned char *dst );
/* ------------------------------------------------------------------------ **
* Close an MD5 Message Digest context and generate the final MD5 sum.
*
* Input: ctx - Pointer to the context in which the MD5 sum is being
* built.
* dst - A pointer to at least 16 bytes of memory, which will
* receive the finished MD5 sum.
*
* Output: A pointer to the closed context (same as <ctx>).
* You might use this to free a malloc'd context structure. :)
*
* Notes: The context (<ctx>) is returned in an undefined state.
* It must be re-initialized before re-use.
*
* See Also: <auth_md5InitCtx()>, <auth_md5SumCtx()>
*
* ------------------------------------------------------------------------ **
*/
unsigned char * MD5(unsigned char * hash, const unsigned char *src, const int len );
/* ------------------------------------------------------------------------ **
* Compute an MD5 message digest.
*
* Input: dst - Destination buffer into which the result will be written.
* Must be 16 bytes, minimum.
* src - Source data block to be MD5'd.
* len - The length, in bytes, of the source block.
* (Note that the length is given in bytes, not bits.)
*
* Output: A pointer to <dst>, which will contain the calculated 16-byte
* MD5 message digest.
*
* Notes: This function is a shortcut. It takes a single input block.
* For more drawn-out operations, see <auth_md5InitCtx()>.
*
* This function is interface-compatible with the
* <auth_md4Sum()> function in the MD4 module.
*
* The MD5 algorithm is designed to work on data with an
* arbitrary *bit* length. Most implementations, this one
* included, handle the input data in byte-sized chunks.
*
* The MD5 algorithm does much of its work using four-byte
* words, and so can be tuned for speed based on the endian-ness
* of the host. This implementation is intended to be
* endian-neutral, which may make it a teeny bit slower than
* others. ...maybe.
*
* See Also: <auth_md5InitCtx()>
*
* ------------------------------------------------------------------------ **
*/
unsigned char * MD5fromFile(unsigned char *dst, const char *src);
/* ------------------------------------------------------------------------ **
* Compute an MD5 message digest.
*
* Input: dst - Destination buffer into which the result will be written.
* Must be 16 bytes, minimum.
* src - filepath to the file to be MD5'd.
*
* Output: A pointer to <dst>, which will contain the calculated 16-byte
* MD5 message digest.
*
* Notes: This function is a shortcut. It takes a single input block.
* For more drawn-out operations, see <auth_md5InitCtx()>.
*
* This function is interface-compatible with the
* <auth_md4Sum()> function in the MD4 module.
*
* The MD5 algorithm is designed to work on data with an
* arbitrary *bit* length. Most implementations, this one
* included, handle the input data in byte-sized chunks.
*
* The MD5 algorithm does much of its work using four-byte
* words, and so can be tuned for speed based on the endian-ness
* of the host. This implementation is intended to be
* endian-neutral, which may make it a teeny bit slower than
* others. ...maybe.
*
* See Also: <auth_md5InitCtx()>
*
* ------------------------------------------------------------------------ **
*/
/* ========================================================================== */
#ifdef __cplusplus
}
#endif
#endif /* AUTH_MD5_H */

140
source/banner/banner.c Normal file
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@ -0,0 +1,140 @@
/****************************************************************************
* USB Loader GX Team
* banner.c
*
* Dump opening.bnr thanks to Wiipower
***************************************************************************/
#include <gctypes.h>
#include <gccore.h>
#include <ogcsys.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <malloc.h>
#include <fat.h>
#include "fatmounter.h"
#include "usbloader/wdvd.h"
#include "usbloader/disc.h"
#include "banner.h"
#include "patches/fst.h"
char *fstfilename(FST_ENTRY *fst, u32 index)
{
u32 count = fst[0].filelen;
u32 stringoffset;
if (index < count)
{
stringoffset = *(u32 *)&(fst[index]) % (256*256*256);
return (char *)((u32)fst + count*12 + stringoffset);
} else
{
return NULL;
}
}
s32 dump_banner(const char * discid,const char * dest)
{
// Mount the disc
//Disc_SetWBFS(1, (u8*)discid);
Disc_SetUSB((u8*)discid);
Disc_Open();
u64 offset;
s32 ret;
ret = __Disc_FindPartition(&offset);
if (ret < 0)
return ret;
ret = WDVD_OpenPartition(offset);
if (ret < 0) {
//printf("ERROR: OpenPartition(0x%llx) %d\n", offset, ret);
return ret;
}
// Read where to find the fst.bin
u32 *buffer = memalign(32, 0x20);
if (buffer == NULL)
{
//Out of memory
return -1;
}
ret = WDVD_Read(buffer, 0x20, 0x420);
if (ret < 0)
return ret;
// Read fst.bin
void *fstbuffer = memalign(32, buffer[2]*4);
FST_ENTRY *fst = (FST_ENTRY *)fstbuffer;
if (fst == NULL)
{
//Out of memory
free(buffer);
return -1;
}
ret = WDVD_Read(fstbuffer, buffer[2]*4, buffer[1]*4);
if (ret < 0)
return ret;
free(buffer);
// Search the fst.bin
u32 count = fst[0].filelen;
int i;
u32 index = 0;
for (i=1;i<count;i++)
{
if (strstr(fstfilename(fst, i), "opening.bnr") != NULL)
{
index = i;
}
}
if (index == 0)
{
//opening.bnr not found
free(fstbuffer);
return -1;
}
// Load the .bnr
u8 *banner = memalign(32, fst[index].filelen);
if (banner == NULL)
{
//Out of memory
free(fstbuffer);
return -1;
}
ret = WDVD_Read((void *)banner, fst[index].filelen, fst[index].fileoffset * 4);
if (ret < 0)
return ret;
//fatInitDefault();
//SDCard_Init();
FILE *fp = NULL;
fp = fopen(dest, "wb");
fwrite(banner, 1, fst[index].filelen, fp);
fclose(fp);
free(fstbuffer);
free(banner);
return 1;
}

29
source/banner/banner.h Normal file
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@ -0,0 +1,29 @@
/****************************************************************************
* USB Loader GX Team
* banner.h
*
* Dump opening.bnr thanks to Wiipower
***************************************************************************/
#ifndef BANNER_H
#define BANNER_H
#ifdef __cplusplus
extern "C"
{
#endif
typedef struct {
u8 filetype;
char name_offset[3];
u32 fileoffset;
u32 filelen;
} __attribute__((packed)) FST_ENTRY;
s32 dump_banner(const char * discid,const char * dest);
#ifdef __cplusplus
}
#endif
#endif

6
source/libwiigui/gui_banner.cpp → source/banner/gui_banner.cpp
View File

@ -1,3 +1,9 @@
/****************************************************************************
* USB Loader GX Team
* gui_banner.cpp
*
* Shows TPL Banner images
***************************************************************************/
#include "gui_banner.h"
GuiBanner::GuiBanner()

29
source/banner/gui_banner.h Normal file
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@ -0,0 +1,29 @@
/****************************************************************************
* USB Loader GX Team
* gui_banner.h
*
* Shows TPL Banner images
***************************************************************************/
#ifndef _GUIBANNER_H_
#define _GUIBANNER_H_
#include "libwiigui/gui.h"
class GuiBanner : public GuiImage
{
public:
GuiBanner();
GuiBanner(const char *tplfilepath);
GuiBanner(void *mem,u32 len,u16 w, u16 h);
~GuiBanner();
void Draw();
private:
f32 deg_beta;
const char *filepath;
const void *memory;
bool filecheck;
};
#endif /* _GUIBANNER_H_ */

459
source/banner/openingbnr.c Normal file
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@ -0,0 +1,459 @@
/****************************************************************************
* 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 från U.8- headerns början
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;
}

41
source/banner/openingbnr.h Normal file
View File

@ -0,0 +1,41 @@
/****************************************************************************
* USB Loader GX Team
* openingbnr
*
* Extract opening.bnr/banner.bin/sound.bin/icon.bin
***************************************************************************/
#ifndef _OPENINGBNR_H_
#define _OPENINGBNR_H_
#ifdef __cplusplus
extern "C"
{
#endif
/***********************************************************
* Error description:
* 0 Successfully extracted
* -1 No U8 tag
* -2 Unknown type
* -3 Archive inconsistency, too much padding
* -4 No IMD5 tag
* -5 MD5 mismatch
* -6 Size mismatch
* -7 Inconsistency in LZ77 encoding
************************************************************/
//! Extract opening.bnr from filepath to destpath
//! Files extracted: banner.bin icon.bin and sound.bin
int extractbnrfile(char * filepath, char * destpath);
//int unpackBanner(const char * filename,const char * outdir);
int unpackBanner(const char * gameid, const char * outdir);
//! Extract the lz77 compressed banner, icon and sound .bin
u8* decompress_lz77(u8 *data, size_t data_size, size_t* decompressed_size);
#ifdef __cplusplus
}
#endif
#endif

22
source/libwiigui/gui_banner.h
View File

@ -1,22 +0,0 @@
#ifndef _GUIBANNER_H_
#define _GUIBANNER_H_
#include "gui.h"
class GuiBanner : public GuiImage
{
public:
GuiBanner();
GuiBanner(const char *tplfilepath);
GuiBanner(void *mem,u32 len,u16 w, u16 h);
~GuiBanner();
void Draw();
private:
f32 deg_beta;
const char *filepath;
const void *memory;
bool filecheck;
};
#endif /* _GUIDISCCOVER_H_ */

3
source/usbloader/disc.h
View File

@ -48,7 +48,8 @@ s32 Disc_ReadHeader(void *);
s32 Disc_IsWii(void);
s32 Disc_BootPartition(u64, u8, u8, u8, u8, u8, u8);
s32 Disc_WiiBoot(u8, u8, u8, u8, u8, u8);
void PatchCountryStrings(void *Address, int Size);
void PatchCountryStrings(void *Address, int Size);
s32 __Disc_FindPartition(u64 *outbuf);
#ifdef __cplusplus
}