usbloadergx/source/patches/patchcode.c
2010-04-11 05:49:24 +00:00

553 lines
13 KiB
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 "../gecko.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)
//---------------------------------------------------------------------------------
{
//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;
}
}
//giantpune's magic super patch to return to channels
bool PatchReturnTo(void *Address, int Size, u32 id) {
if( !id )return 0;
//new __OSLoadMenu() (SM2.0 and higher)
u8 SearchPattern[ 12 ] = { 0x38, 0x80, 0x00, 0x02, 0x38, 0x60, 0x00, 0x01, 0x38, 0xa0, 0x00, 0x00 };
//old _OSLoadMenu() (used in launch games)
u8 SearchPatternB[ 12 ] = { 0x38, 0xC0, 0x00, 0x02, 0x38, 0xA0, 0x00, 0x01, 0x38, 0xE0, 0x00, 0x00 };
//identifier for the safe place
u8 SearchPattern2[ 12 ] = { 0x4D, 0x65, 0x74, 0x72, 0x6F, 0x77, 0x65, 0x72, 0x6B, 0x73, 0x20, 0x54 };
int found = 0;
int patched = 0;
u8 oldSDK = 0;
u32 ad[ 4 ] = { 0, 0, 0, 0 };
void *Addr = Address;
void *Addr_end = Address+Size;
while (Addr <= Addr_end - 12 ) {
//find a safe place or the patch to hang out
if ( ! ad[ 3 ] && memcmp( Addr, SearchPattern2, 12 )==0 ) {
ad[ 3 ] = (u32)Addr + 0x30;
gprintf("found a safe place @ %08x\n", ad[ 3 ]);
//hexdump( Addr, 0x50 );
}
//find __OSLaunchMenu() and remember some addresses in it
else if ( memcmp( Addr, SearchPattern, 12 )==0 ) {
ad[ found++ ] = (u32)Addr;
}
else if ( ad[ 0 ] && memcmp( Addr, SearchPattern, 8 )==0 ) //after the first match is found, only search the first 8 bytes for the other 2
{
if( !ad[ 1 ] ) ad[ found++ ] = (u32)Addr;
else if( !ad[ 2 ] ) ad[ found++ ] = (u32)Addr;
if( found >= 3 )break;
}
Addr += 4;
}
//check for the older-ass version of the SDK
if( found < 3 && ad[ 3 ] )
{
Addr = Address;
ad[ 0 ] = 0; ad[ 1 ] = 0;
ad[ 2 ] = 0;
found = 0;
oldSDK = 1;
while (Addr <= Addr_end - 12 ) {
//find __OSLaunchMenu() and remember some addresses in it
if ( memcmp( Addr, SearchPatternB, 12 )==0 ) {
ad[ found++ ] = (u32)Addr;
}
else if ( ad[ 0 ] && memcmp( Addr, SearchPatternB, 8 ) == 0 ) //after the first match is found, only search the first 8 bytes for the other 2
{
if( !ad[ 1 ] ) ad[ found++ ] = (u32)Addr;
else if( !ad[ 2 ] ) ad[ found++ ] = (u32)Addr;
if( found >= 3 )break;
}
Addr += 4;
}
}
//if the function is found and if it is not too far into the main.dol
if( found == 3 && ( ad[ 2 ] - ad[ 3 ] < 0x1000001 ) && ad[ 3 ] )
{
gprintf("patch __OSLaunchMenu( 0x00010001, 0x%08x )\n", id);
u32 nop = 0x60000000;
//the magic that writes the TID to the registers
u8 jump[ 20 ] = { 0x3C, 0x60, 0x00, 0x01, 0x60, 0x63, 0x00, 0x01,
0x3C, 0x80, 0x4A, 0x4F, 0x60, 0x84, 0x44, 0x49,
0x4E, 0x80, 0x00, 0x20 };
if( oldSDK )
{
jump[ 1 ] = 0xA0; //3CA00001 60A50001
jump[ 5 ] = 0xA5; //3CC04A4F 60C64449
jump[ 9 ] = 0xC0;
jump[ 13 ] = 0xC6;
}
//patch the thing to use the new TID
jump[ 10 ] = (u8)( id >> 24 );
jump[ 11 ] = (u8)( id >> 16 );
jump[ 14 ] = (u8)( id >> 8 );
jump[ 15 ] = (u8)id;
void* addr = (u32*)ad[ 3 ];
//write new stuff to memory main.dol in a unused part of the main.dol
memcpy( addr, jump, sizeof( jump ) );
//ES_GetTicketViews()
u32 newval = ( ad[ 3 ] - ad[ 0 ] );
newval &= 0x03FFFFFC;
newval |= 0x48000001;
addr = (u32*)ad[ 0 ];
memcpy( addr, &newval, sizeof( u32 ) );
memcpy( addr + 4, &nop, sizeof( u32 ) );
gprintf("\t%p -> %08x\n", addr, newval );
//ES_GetTicketViews() again
newval = ( ad[ 3 ] - ad[ 1 ] );
newval &= 0x03FFFFFC;
newval |= 0x48000001;
addr = (u32*)ad[ 1 ];
memcpy( addr, &newval, sizeof( u32 ) );
memcpy( addr + 4, &nop, sizeof( u32 ) );
gprintf("\t%p -> %08x\n", addr, newval );
//ES_LaunchTitle()
newval = ( ad[ 3 ] - ad[ 2 ] );
newval &= 0x03FFFFFC;
newval |= 0x48000001;
addr = (u32*)ad[ 2 ];
memcpy( addr, &newval, sizeof( u32 ) );
memcpy( addr + 4, &nop, sizeof( u32 ) );
gprintf("\t%p -> %08x\n", addr, newval );
patched = 1;
}
else
{
gprintf("not patched\n");
gprintf("found %d addresses\n", found);
int i;
for( i = 0; i< 4; i++)
gprintf("ad[ %d ]: %08x\n", i, ad[ i ] );
gprintf("offset : %08x\n", ad[ 2 ] - ad[ 3 ] );
}
return patched;
}