usbloadergx/source/patches/patchcode.c

/*
 *  Copyright (C) 2008 Nuke (wiinuke@gmail.com)
 *
 *  this file is part of GeckoOS for USB Gecko
 *  http://www.usbgecko.com
 *
 *  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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <gccore.h>
#include <sys/unistd.h>

#include "usbloader/apploader.h"
#include "patchcode.h"
#include "settings/cfg.h"
#include "listfiles.h"

//#include "sd.h"
//#include "fwrite_patch.h"
//#include "fwrite_patch_slota.h"
//#include "main.h"

extern void patchhook( u32 address, u32 len );
extern void patchhook2( u32 address, u32 len );
extern void patchhook3( u32 address, u32 len );

extern void multidolpatchone( u32 address, u32 len );
extern void multidolpatchtwo( u32 address, u32 len );

extern void regionfreejap( u32 address, u32 len );
extern void regionfreeusa( u32 address, u32 len );
extern void regionfreepal( u32 address, u32 len );

extern void removehealthcheck( u32 address, u32 len );

extern void copyflagcheck1( u32 address, u32 len );
extern void copyflagcheck2( u32 address, u32 len );
extern void copyflagcheck3( u32 address, u32 len );
extern void copyflagcheck4( u32 address, u32 len );
extern void copyflagcheck5( u32 address, u32 len );

extern void patchupdatecheck( u32 address, u32 len );

extern void movedvdhooks( u32 address, u32 len );

extern void multidolhook( u32 address );
extern void langvipatch( u32 address, u32 len, u8 langbyte );
extern void vipatch( u32 address, u32 len );

static const u32 multidolpatch1[2] =
{
    0x3C03FFB4, 0x28004F43
};

static const u32 healthcheckhook[2] =
{
    0x41810010, 0x881D007D
};

static const u32 updatecheckhook[3] =
{
    0x80650050, 0x80850054, 0xA0A50058
};

static const u32 multidolpatch2[2] =
{
    0x3F608000, 0x807B0018
};

static const u32 recoveryhooks[3] =
{
    0xA00100AC, 0x5400073E, 0x2C00000F
};

static const u32 nocopyflag1[3] =
{
    0x540007FF, 0x4182001C, 0x80630068
};

static const u32 nocopyflag2[3] =
{
    0x540007FF, 0x41820024, 0x387E12E2
};

// this one is for the GH3 and VC saves
//static const u32 nocopyflag3[5] = {
//  0x2C030000, 0x40820010, 0x88010020, 0x28000002, 0x41820234
//};

static const u32 nocopyflag3[5] =
{
    0x2C030000, 0x41820200, 0x48000058, 0x38610100
};
// this removes the display warning for no copy VC and GH3 saves
static const u32 nocopyflag4[4] =
{
    0x80010008, 0x2C000000, 0x4182000C, 0x3BE00001
};

static const u32 nocopyflag5[3] =
{
    0x801D0024, 0x540007FF, 0x41820024
};

static const u32 movedvdpatch[3] =
{
    0x2C040000, 0x41820120, 0x3C608109
};

static const u32 regionfreehooks[5] =
{
    0x7C600774, 0x2C000001, 0x41820030, 0x40800010, 0x2C000000
};

static const u32 cIOScode[16] =
{
    0x7f06c378, 0x7f25cb78, 0x387e02c0, 0x4cc63182
};

static const u32 cIOSblock[16] =
{
    0x2C1800F9, 0x40820008, 0x3B000024
};

static const u32 fwritepatch[8] =
{
    0x9421FFD0, 0x7C0802A6, 0x90010034, 0xBF210014, 0x7C9B2378, 0x7CDC3378, 0x7C7A1B78, 0x7CB92B78  // bushing fwrite
};

static const u32 vipatchcode[3] =
{
    0x4182000C, 0x4180001C, 0x48000018
};

const u32 viwiihooks[4] =
{
    0x7CE33B78, 0x38870034, 0x38A70038, 0x38C7004C
};

const u32 kpadhooks[4] =
{
    0x9A3F005E, 0x38AE0080, 0x389FFFFC, 0x7E0903A6
};

const u32 kpadoldhooks[6] =
{
    0x801D0060, 0x901E0060, 0x801D0064, 0x901E0064, 0x801D0068, 0x901E0068
};

const u32 joypadhooks[4] =
{
    0x3AB50001, 0x3A73000C, 0x2C150004, 0x3B18000C
};

const u32 gxdrawhooks[4] =
{
    0x3CA0CC01, 0x38000061, 0x3C804500, 0x98058000
};

const u32 gxflushhooks[4] =
{
    0x90010014, 0x800305FC, 0x2C000000, 0x41820008
};

const u32 ossleepthreadhooks[4] =
{
    0x90A402E0, 0x806502E4, 0x908502E4, 0x2C030000
};

const u32 axnextframehooks[4] =
{
    0x3800000E, 0x7FE3FB78, 0xB0050000, 0x38800080
};

const u32 wpadbuttonsdownhooks[4] =
{
    0x7D6B4A14, 0x816B0010, 0x7D635B78, 0x4E800020
};

const u32 wpadbuttonsdown2hooks[4] =
{
    0x7D6B4A14, 0x800B0010, 0x7C030378, 0x4E800020
};

const u32 multidolhooks[4] =
{
    0x7C0004AC, 0x4C00012C, 0x7FE903A6, 0x4E800420
};

const u32 multidolchanhooks[4] =
{
    0x4200FFF4, 0x48000004, 0x38800000, 0x4E800020
};

const u32 langpatch[3] =
{
    0x7C600775, 0x40820010, 0x38000000
};

static const u32 oldpatch002[3] =
{
    0x2C000000, 0x40820214, 0x3C608000
};

static const u32 newpatch002[3] =
{
    0x2C000000, 0x48000214, 0x3C608000
};

//---------------------------------------------------------------------------------
bool dogamehooks( void *addr, u32 len )
//---------------------------------------------------------------------------------
{
    //this is temporary since the screen freezes without a file loaded
    char filepath[150];
    char GameId[10];
    memcpy( GameId, ( u8 * ) 0x80000000, 6 );
    GameId[6] = 0;
    sprintf( filepath, "%s%s.gct", Settings.Cheatcodespath, GameId );

    if ( !checkfile( filepath ) )
        return false;

    //TODO for oggzee: when using Ocarina check if a hook as patched

    hooktype = 1; // TODO for oggzee: Create an option for hooktype
    /*
    0 No Hook
    1 VBI
    2 KPAD read
    3 Joypad Hook
    4 GXDraw Hook
    5 GXFlush Hook
    6 OSSleepThread Hook
    7 AXNextFrame Hook
    */

    void *addr_start = addr;
    void *addr_end = addr + len;
    bool hookpatched = false;

    while ( addr_start < addr_end )
    {
        switch ( hooktype )
        {

            case 0x00:
                hookpatched = true;
                break;

            case 0x01:
                if ( memcmp( addr_start, viwiihooks, sizeof( viwiihooks ) ) == 0 )
                {
                    patchhook( ( u32 )addr_start, len );
                    hookpatched = true;
                }
                if ( memcmp( addr_start, multidolhooks, sizeof( multidolhooks ) ) == 0 )
                {
                    multidolhook( ( u32 )addr_start + sizeof( multidolhooks ) - 4 );
                    hookpatched = true;
                }
                break;

            case 0x02:

                if ( memcmp( addr_start, kpadhooks, sizeof( kpadhooks ) ) == 0 )
                {
                    patchhook( ( u32 )addr_start, len );
                    hookpatched = true;
                }

                if ( memcmp( addr_start, kpadoldhooks, sizeof( kpadoldhooks ) ) == 0 )
                {
                    patchhook( ( u32 )addr_start, len );
                    hookpatched = true;
                }
                if ( memcmp( addr_start, multidolhooks, sizeof( multidolhooks ) ) == 0 )
                {
                    multidolhook( ( u32 )addr_start + sizeof( multidolhooks ) - 4 );
                    hookpatched = true;
                }
                break;

            case 0x03:

                if ( memcmp( addr_start, joypadhooks, sizeof( joypadhooks ) ) == 0 )
                {
                    patchhook( ( u32 )addr_start, len );
                    hookpatched = true;
                }
                if ( memcmp( addr_start, multidolhooks, sizeof( multidolhooks ) ) == 0 )
                {
                    multidolhook( ( u32 )addr_start + sizeof( multidolhooks ) - 4 );
                    hookpatched = true;
                }
                break;

            case 0x04:

                if ( memcmp( addr_start, gxdrawhooks, sizeof( gxdrawhooks ) ) == 0 )
                {
                    patchhook( ( u32 )addr_start, len );
                    hookpatched = true;
                }
                if ( memcmp( addr_start, multidolhooks, sizeof( multidolhooks ) ) == 0 )
                {
                    multidolhook( ( u32 )addr_start + sizeof( multidolhooks ) - 4 );
                    hookpatched = true;
                }
                break;

            case 0x05:

                if ( memcmp( addr_start, gxflushhooks, sizeof( gxflushhooks ) ) == 0 )
                {
                    patchhook( ( u32 )addr_start, len );
                    hookpatched = true;
                }
                if ( memcmp( addr_start, multidolhooks, sizeof( multidolhooks ) ) == 0 )
                {
                    multidolhook( ( u32 )addr_start + sizeof( multidolhooks ) - 4 );
                    hookpatched = true;
                }
                break;

            case 0x06:

                if ( memcmp( addr_start, ossleepthreadhooks, sizeof( ossleepthreadhooks ) ) == 0 )
                {
                    patchhook( ( u32 )addr_start, len );
                    hookpatched = true;
                }
                if ( memcmp( addr_start, multidolhooks, sizeof( multidolhooks ) ) == 0 )
                {
                    multidolhook( ( u32 )addr_start + sizeof( multidolhooks ) - 4 );
                    hookpatched = true;
                }
                break;

            case 0x07:

                if ( memcmp( addr_start, axnextframehooks, sizeof( axnextframehooks ) ) == 0 )
                {
                    patchhook( ( u32 )addr_start, len );
                    hookpatched = true;
                }
                if ( memcmp( addr_start, multidolhooks, sizeof( multidolhooks ) ) == 0 )
                {
                    multidolhook( ( u32 )addr_start + sizeof( multidolhooks ) - 4 );
                    hookpatched = true;
                }
                break;

            case 0x08:

                //if(memcmp(addr_start, customhook, customhooksize)==0)
                //{
                //  patchhook((u32)addr_start, len);
                //  hookpatched = true;
                //}
                if ( memcmp( addr_start, multidolhooks, sizeof( multidolhooks ) ) == 0 )
                {
                    multidolhook( ( u32 )addr_start + sizeof( multidolhooks ) - 4 );
                    hookpatched = true;
                }
                break;
        }
        addr_start += 4;
    }
    return hookpatched;
}

// Not used yet, for patching DOL once loaded into memory and befor execution
/*
void patchdol(void *addr, u32 len)
{

    void *addr_start = addr;
    void *addr_end = addr+len;

    while(addr_start < addr_end)
    {
        if(memcmp(addr_start, wpadlibogc, sizeof(wpadlibogc))==0) {
    //      printf("\n\n\n");
    //      printf("found at address %x\n", addr_start);
        //  sleep(10);
    //      patchhookdol((u32)addr_start, len);
            patched = 1;
            break;
        }
        addr_start += 4;
    }
}
*/
void langpatcher( void *addr, u32 len )
{

    void *addr_start = addr;
    void *addr_end = addr + len;

    while ( addr_start < addr_end )
    {

        if ( memcmp( addr_start, langpatch, sizeof( langpatch ) ) == 0 )
        {
            if ( configbytes[0] != 0xCD )
            {
                langvipatch( ( u32 )addr_start, len, configbytes[0] );
            }
        }
        addr_start += 4;
    }
}
/*
void patchdebug(void *addr, u32 len)
{

    void *addr_start = addr;
    void *addr_end = addr+len;

    while(addr_start < addr_end)
    {

        if(memcmp(addr_start, fwritepatch, sizeof(fwritepatch))==0) {

            memcpy(addr_start,fwrite_patch_bin,fwrite_patch_bin_len);
            // apply patch
        }
        addr_start += 4;
    }
}
*/
void vidolpatcher( void *addr, u32 len )
{

    void *addr_start = addr;
    void *addr_end = addr + len;

    while ( addr_start < addr_end )
    {
        if ( memcmp( addr_start, vipatchcode, sizeof( vipatchcode ) ) == 0 )
        {
            vipatch( ( u32 )addr_start, len );
        }
        addr_start += 4;
    }
}