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usbloadergx/source/patches/patchcode.c
wiidev 564ea6a534 Refactored various game patches
2023-01-01 17:00:25 +00:00

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/*
* 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 "codehandler.h"
#include "codehandleronly.h"
#include "codehandlerslota.h"
#include "multidol.h"
#include "defaultgameconfig.h"
#include "usbloader/apploader.h"
#include "patchcode.h"
#include "settings/SettingsEnums.h"
#include "FileOperations/fileops.h"
#include "memory/mem2.h"
#include "memory/memory.h"
#include "gecko.h"
/* GCC 11 false positives */
#if __GNUC__ > 10
#pragma GCC diagnostic ignored "-Warray-bounds"
#pragma GCC diagnostic ignored "-Wstringop-overflow"
#endif
static u8 *codelistend = (u8 *)0x80003000;
static u8 *codelist = (u8 *)0x800022A8;
static u8 *code_buf = NULL;
static u32 code_size = 0;
static u32 gameconfsize = 0;
static u32 *gameconf = NULL;
static u32 tempgameconfsize = 0;
static u8 *tempgameconf = NULL;
extern void patchhook(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 vipatchcode[3] = {0x4182000C, 0x4180001C, 0x48000018};
static const u32 viwiihooks[4] = {0x7CE33B78, 0x38870034, 0x38A70038, 0x38C7004C};
static const u32 kpadhooks[4] = {0x9A3F005E, 0x38AE0080, 0x389FFFFC, 0x7E0903A6};
static const u32 kpadoldhooks[6] = {0x801D0060, 0x901E0060, 0x801D0064, 0x901E0064, 0x801D0068, 0x901E0068};
static const u32 joypadhooks[4] = {0x3AB50001, 0x3A73000C, 0x2C150004, 0x3B18000C};
static const u32 gxdrawhooks[4] = {0x3CA0CC01, 0x38000061, 0x3C804500, 0x98058000};
static const u32 gxflushhooks[4] = {0x90010014, 0x800305FC, 0x2C000000, 0x41820008};
static const u32 ossleepthreadhooks[4] = {0x90A402E0, 0x806502E4, 0x908502E4, 0x2C030000};
static const u32 axnextframehooks[4] = {0x3800000E, 0x7FE3FB78, 0xB0050000, 0x38800080};
static const u32 wpadbuttonsdownhooks[4] = {0x7D6B4A14, 0x816B0010, 0x7D635B78, 0x4E800020};
static const u32 wpadbuttonsdown2hooks[4] = {0x7D6B4A14, 0x800B0010, 0x7C030378, 0x4E800020};
static const u32 multidolhooks[4] = {0x7C0004AC, 0x4C00012C, 0x7FE903A6, 0x4E800420};
static const u32 multidolchanhooks[4] = {0x4200FFF4, 0x48000004, 0x38800000, 0x4E800020};
static const u32 langpatch[3] = {0x7C600775, 0x40820010, 0x38000000};
//---------------------------------------------------------------------------------
void dogamehooks(u32 hooktype, void *addr, u32 len)
//---------------------------------------------------------------------------------
{
bool isChannel = (*((char *)0x80000005) == 0) && (*((char *)0x80000006) == 0);
void *addr_start = addr;
void *addr_end = addr + len;
while (addr_start < addr_end)
{
switch (hooktype)
{
default:
case 0x00:
break;
case 0x01:
if (memcmp(addr_start, viwiihooks, sizeof(viwiihooks)) == 0)
patchhook((u32)addr_start, len);
break;
case 0x02:
if (memcmp(addr_start, kpadhooks, sizeof(kpadhooks)) == 0)
patchhook((u32)addr_start, len);
if (memcmp(addr_start, kpadoldhooks, sizeof(kpadoldhooks)) == 0)
patchhook((u32)addr_start, len);
break;
case 0x03:
if (memcmp(addr_start, joypadhooks, sizeof(joypadhooks)) == 0)
patchhook((u32)addr_start, len);
break;
case 0x04:
if (memcmp(addr_start, gxdrawhooks, sizeof(gxdrawhooks)) == 0)
patchhook((u32)addr_start, len);
break;
case 0x05:
if (memcmp(addr_start, gxflushhooks, sizeof(gxflushhooks)) == 0)
patchhook((u32)addr_start, len);
break;
case 0x06:
if (memcmp(addr_start, ossleepthreadhooks, sizeof(ossleepthreadhooks)) == 0)
patchhook((u32)addr_start, len);
break;
case 0x07:
if (memcmp(addr_start, axnextframehooks, sizeof(axnextframehooks)) == 0)
patchhook((u32)addr_start, len);
break;
/*
case 0x08:
if (memcmp(addr_start, customhook, customhooksize) == 0)
patchhook((u32)addr_start, len);
if (memcmp(addr_start, multidolhooks, sizeof(multidolhooks)) == 0)
multidolhook((u32)addr_start + sizeof(multidolhooks) - 4);
break;
*/
}
if (memcmp(addr_start, multidolhooks, sizeof(multidolhooks)) == 0)
multidolhook((u32)addr_start + sizeof(multidolhooks) - 4);
if (isChannel && memcmp(addr_start, multidolchanhooks, sizeof(multidolchanhooks)) == 0)
{
*(((u32 *)addr_start) + 1) = 0x7FE802A6;
DCFlushRange(((u32 *)addr_start) + 1, 4);
ICInvalidateRange(((u32 *)addr_start) + 1, 4);
multidolhook((u32)addr_start + sizeof(multidolchanhooks) - 4);
}
addr_start += 4;
}
}
//---------------------------------------------------------------------------------
void app_pokevalues()
//---------------------------------------------------------------------------------
{
u32 i, *codeaddr, *codeaddr2, *addrfound = NULL;
if (gameconfsize != 0)
{
for (i = 0; i < gameconfsize / 4; i++)
{
if (*(gameconf + i) == 0)
{
if (((u32 *)(*(gameconf + i + 1))) == NULL || *((u32 *)(*(gameconf + i + 1))) == *(gameconf + i + 2))
{
*((u32 *)(*(gameconf + i + 3))) = *(gameconf + i + 4);
DCFlushRange((void *)*(gameconf + i + 3), 4);
}
i += 4;
}
else
{
codeaddr = (u32 *)*(gameconf + i + *(gameconf + i) + 1);
codeaddr2 = (u32 *)*(gameconf + i + *(gameconf + i) + 2);
if (codeaddr == 0 && addrfound != NULL)
codeaddr = addrfound;
else if (codeaddr == 0 && codeaddr2 != 0)
codeaddr = (u32 *)((((u32)codeaddr2) >> 28) << 28);
else if (codeaddr == 0 && codeaddr2 == 0)
{
i += *(gameconf + i) + 4;
continue;
}
if (codeaddr2 == 0)
codeaddr2 = codeaddr + *(gameconf + i);
addrfound = NULL;
while (codeaddr <= (codeaddr2 - *(gameconf + i)))
{
if (memcmp(codeaddr, gameconf + i + 1, (*(gameconf + i)) * 4) == 0)
{
*(codeaddr + ((*(gameconf + i + *(gameconf + i) + 3)) / 4)) = *(gameconf + i + *(gameconf + i) + 4);
if (addrfound == NULL)
addrfound = codeaddr;
}
codeaddr++;
}
i += *(gameconf + i) + 4;
}
}
}
}
//---------------------------------------------------------------------------------
static void app_loadgameconfig()
//---------------------------------------------------------------------------------
{
if (gameconf == NULL)
{
gameconf = (u32 *)MEM2_alloc(65536);
if (gameconf == NULL)
return;
}
const char *discid = (const char *)Disc_ID;
if (!tempgameconf)
{
tempgameconf = (u8 *)defaultgameconfig;
tempgameconfsize = defaultgameconfig_size;
}
u32 ret;
s32 gameidmatch, maxgameidmatch = -1, maxgameidmatch2 = -1;
u32 i, numnonascii, parsebufpos;
u32 codeaddr, codeval, codeaddr2, codeval2, codeoffset;
u32 temp, tempoffset = 0;
char parsebuffer[18];
// Remove non-ASCII characters
numnonascii = 0;
for (i = 0; i < tempgameconfsize; i++)
{
if (tempgameconf[i] < 9 || tempgameconf[i] > 126)
numnonascii++;
else
tempgameconf[i - numnonascii] = tempgameconf[i];
}
tempgameconfsize -= numnonascii;
*(tempgameconf + tempgameconfsize) = 0;
//gameconf = (tempgameconf + tempgameconfsize) + (4 - (((u32) (tempgameconf + tempgameconfsize)) % 4));
for (maxgameidmatch = 0; maxgameidmatch <= 6; maxgameidmatch++)
{
i = 0;
while (i < tempgameconfsize)
{
maxgameidmatch2 = -1;
while (maxgameidmatch != maxgameidmatch2)
{
while (i != tempgameconfsize && tempgameconf[i] != ':')
i++;
if (i == tempgameconfsize)
break;
while ((tempgameconf[i] != 10 && tempgameconf[i] != 13) && (i != 0))
i--;
if (i != 0)
i++;
parsebufpos = 0;
gameidmatch = 0;
while (tempgameconf[i] != ':')
{
if (tempgameconf[i] == '?')
{
parsebuffer[parsebufpos] = discid[parsebufpos];
parsebufpos++;
gameidmatch--;
i++;
}
else if (tempgameconf[i] != 0 && tempgameconf[i] != ' ')
parsebuffer[parsebufpos++] = tempgameconf[i++];
else if (tempgameconf[i] == ' ')
break;
else
i++;
if (parsebufpos == 8)
break;
}
parsebuffer[parsebufpos] = 0;
if (strncasecmp("DEFAULT", parsebuffer, strlen(parsebuffer)) == 0 && strlen(parsebuffer) == 7)
{
gameidmatch = 0;
goto idmatch;
}
if (strncasecmp(discid, parsebuffer, strlen(parsebuffer)) == 0)
{
gameidmatch += strlen(parsebuffer);
idmatch:
if (gameidmatch > maxgameidmatch2)
maxgameidmatch2 = gameidmatch;
}
while ((i != tempgameconfsize) && (tempgameconf[i] != 10 && tempgameconf[i] != 13))
i++;
}
while (i != tempgameconfsize && tempgameconf[i] != ':')
{
parsebufpos = 0;
while ((i != tempgameconfsize) && (tempgameconf[i] != 10 && tempgameconf[i] != 13))
{
if (tempgameconf[i] != 0 && tempgameconf[i] != ' ' && tempgameconf[i] != '(' && tempgameconf[i] != ':')
parsebuffer[parsebufpos++] = tempgameconf[i++];
else if (tempgameconf[i] == ' ' || tempgameconf[i] == '(' || tempgameconf[i] == ':')
break;
else
i++;
if (parsebufpos == 17)
break;
}
parsebuffer[parsebufpos] = 0;
//if (!autobootcheck)
{
if (strncasecmp("codeliststart", parsebuffer, strlen(parsebuffer)) == 0 && strlen(parsebuffer) == 13)
sscanf((char *)(tempgameconf + i), " = %x", (unsigned int *)&codelist);
if (strncasecmp("codelistend", parsebuffer, strlen(parsebuffer)) == 0 && strlen(parsebuffer) == 11)
sscanf((char *)(tempgameconf + i), " = %x", (unsigned int *)&codelistend);
if (strncasecmp("poke", parsebuffer, strlen(parsebuffer)) == 0 && strlen(parsebuffer) == 4)
{
ret = sscanf((char *)tempgameconf + i, "( %x , %x", (unsigned int *)&codeaddr, (unsigned int *)&codeval);
if (ret == 2)
{
*(gameconf + (gameconfsize / 4)) = 0;
gameconfsize += 4;
*(gameconf + (gameconfsize / 4)) = 0;
gameconfsize += 8;
*(gameconf + (gameconfsize / 4)) = codeaddr;
gameconfsize += 4;
*(gameconf + (gameconfsize / 4)) = codeval;
gameconfsize += 4;
DCFlushRange((void *)(gameconf + (gameconfsize / 4) - 5), 20);
}
}
if (strncasecmp("pokeifequal", parsebuffer, strlen(parsebuffer)) == 0 && strlen(parsebuffer) == 11)
{
ret = sscanf((char *)(tempgameconf + i), "( %x , %x , %x , %x", (unsigned int *)&codeaddr, (unsigned int *)&codeval, (unsigned int *)&codeaddr2, (unsigned int *)&codeval2);
if (ret == 4)
{
*(gameconf + (gameconfsize / 4)) = 0;
gameconfsize += 4;
*(gameconf + (gameconfsize / 4)) = codeaddr;
gameconfsize += 4;
*(gameconf + (gameconfsize / 4)) = codeval;
gameconfsize += 4;
*(gameconf + (gameconfsize / 4)) = codeaddr2;
gameconfsize += 4;
*(gameconf + (gameconfsize / 4)) = codeval2;
gameconfsize += 4;
DCFlushRange((void *)(gameconf + (gameconfsize / 4) - 5), 20);
}
}
if (strncasecmp("searchandpoke", parsebuffer, strlen(parsebuffer)) == 0 && strlen(parsebuffer) == 13)
{
ret = sscanf((char *)(tempgameconf + i), "( %x%n", (unsigned int *)&codeval, (int *)&tempoffset);
if (ret == 1)
{
gameconfsize += 4;
temp = 0;
while (ret == 1)
{
*(gameconf + (gameconfsize / 4)) = codeval;
gameconfsize += 4;
temp++;
i += tempoffset;
ret = sscanf((char *)(tempgameconf + i), " %x%n", (unsigned int *)&codeval, (int *)&tempoffset);
}
*(gameconf + (gameconfsize / 4) - temp - 1) = temp;
ret = sscanf((char *)(tempgameconf + i), " , %x , %x , %x , %x", (unsigned int *)&codeaddr, (unsigned int *)&codeaddr2, (unsigned int *)&codeoffset, (unsigned int *)&codeval2);
if (ret == 4)
{
*(gameconf + (gameconfsize / 4)) = codeaddr;
gameconfsize += 4;
*(gameconf + (gameconfsize / 4)) = codeaddr2;
gameconfsize += 4;
*(gameconf + (gameconfsize / 4)) = codeoffset;
gameconfsize += 4;
*(gameconf + (gameconfsize / 4)) = codeval2;
gameconfsize += 4;
DCFlushRange((void *)(gameconf + (gameconfsize / 4) - temp - 5), temp * 4 + 20);
}
else
gameconfsize -= temp * 4 + 4;
}
}
}
if (tempgameconf[i] != ':')
{
while ((i != tempgameconfsize) && (tempgameconf[i] != 10 && tempgameconf[i] != 13))
i++;
if (i != tempgameconfsize)
i++;
}
}
if (i != tempgameconfsize)
while ((tempgameconf[i] != 10 && tempgameconf[i] != 13) && (i != 0))
i--;
}
}
if (tempgameconf != defaultgameconfig)
MEM2_free(tempgameconf);
if (code_size > (u32)codelistend - (u32)codelist)
{
gprintf("Ocarina: Too many codes found: filesize %i, maxsize: %i\n", code_size, (u32)codelistend - (u32)codelist);
MEM2_free(code_buf);
code_buf = NULL;
code_size = 0;
}
}
//---------------------------------------------------------------------------------
void load_handler(u32 hooktype, u32 debugger, u32 pauseAtStart)
//---------------------------------------------------------------------------------
{
if (hooktype != 0x00)
{
if (debugger == 0x01)
codelist = (u8 *)0x800028B8;
codelistend = (u8 *)0x80003000;
app_loadgameconfig();
if (debugger == 0x01)
{
//! Prefer Slot B
if (usb_isgeckoalive(EXI_CHANNEL_1))
{
// Slot B
memset((void *)0x80001800, 0, codehandler_size);
memcpy((void *)0x80001800, codehandler, codehandler_size);
if (pauseAtStart == 0x01)
*(u32 *)0x80002774 = 1;
memcpy((void *)0x80001CDE, &codelist, 2);
memcpy((void *)0x80001CE2, ((u8 *)&codelist) + 2, 2);
memcpy((void *)0x80001F5A, &codelist, 2);
memcpy((void *)0x80001F5E, ((u8 *)&codelist) + 2, 2);
DCFlushRange((void *)0x80001800, codehandler_size);
}
else
{
// Slot A
memset((void *)0x80001800, 0, codehandlerslota_size);
memcpy((void *)0x80001800, codehandlerslota, codehandlerslota_size);
if (pauseAtStart == 0x01)
*(u32 *)0x80002774 = 1;
memcpy((void *)0x80001CDE, &codelist, 2);
memcpy((void *)0x80001CE2, ((u8 *)&codelist) + 2, 2);
memcpy((void *)0x80001F5A, &codelist, 2);
memcpy((void *)0x80001F5E, ((u8 *)&codelist) + 2, 2);
DCFlushRange((void *)0x80001800, codehandlerslota_size);
}
}
else
{
memset((void *)0x80001800, 0, codehandleronly_size);
memcpy((void *)0x80001800, codehandleronly, codehandleronly_size);
memcpy((void *)0x80001906, &codelist, 2);
memcpy((void *)0x8000190A, ((u8 *)&codelist) + 2, 2);
DCFlushRange((void *)0x80001800, codehandleronly_size);
}
// Load multidol handler
memset((void *)0x80001000, 0, multidol_size);
memcpy((void *)0x80001000, multidol, multidol_size);
DCFlushRange((void *)0x80001000, multidol_size);
switch (hooktype)
{
default:
break;
case 0x01:
memcpy((void *)0x8000119C, viwiihooks, 12);
memcpy((void *)0x80001198, viwiihooks + 3, 4);
break;
case 0x02:
memcpy((void *)0x8000119C, kpadhooks, 12);
memcpy((void *)0x80001198, kpadhooks + 3, 4);
break;
case 0x03:
memcpy((void *)0x8000119C, joypadhooks, 12);
memcpy((void *)0x80001198, joypadhooks + 3, 4);
break;
case 0x04:
memcpy((void *)0x8000119C, gxdrawhooks, 12);
memcpy((void *)0x80001198, gxdrawhooks + 3, 4);
break;
case 0x05:
memcpy((void *)0x8000119C, gxflushhooks, 12);
memcpy((void *)0x80001198, gxflushhooks + 3, 4);
break;
case 0x06:
memcpy((void *)0x8000119C, ossleepthreadhooks, 12);
memcpy((void *)0x80001198, ossleepthreadhooks + 3, 4);
break;
case 0x07:
memcpy((void *)0x8000119C, axnextframehooks, 12);
memcpy((void *)0x80001198, axnextframehooks + 3, 4);
break;
/*
case 0x08:
if (customhooksize == 16)
{
memcpy((void *)0x8000119C, customhook, 12);
memcpy((void *)0x80001198, customhook + 3, 4);
}
break;
*/
case 0x09:
memcpy((void *)0x8000119C, wpadbuttonsdownhooks, 12);
memcpy((void *)0x80001198, wpadbuttonsdownhooks + 3, 4);
break;
case 0x0A:
memcpy((void *)0x8000119C, wpadbuttonsdown2hooks, 12);
memcpy((void *)0x80001198, wpadbuttonsdown2hooks + 3, 4);
break;
}
DCFlushRange((void *)0x80001198, 16);
memcpy((void *)0x80001800, (void *)Disc_ID, 6); // For Wiird
DCFlushRange((void *)0x80001800, 6);
}
// Copy the codes
if (code_buf && code_size > 0)
{
memset(codelist, 0, (u32)codelistend - (u32)codelist);
memcpy(codelist, code_buf, code_size);
DCFlushRange(codelist, (u32)codelistend - (u32)codelist);
MEM2_free(code_buf);
code_buf = NULL;
gprintf("Ocarina codes applied to %p size: %i\n", codelist, (u32)codelistend - (u32)codelist);
}
// This needs to be done after loading the .dol into memory
if (hooktype != 0x00)
app_pokevalues();
}
int LoadGameConfig(const char *CheatFilepath)
{
int filesize = 0;
tempgameconf = (u8 *)defaultgameconfig;
tempgameconfsize = defaultgameconfig_size;
gameconfsize = 0;
FILE *fp;
char filepath[200];
snprintf(filepath, sizeof(filepath), "%s/gameconfig.txt", CheatFilepath);
fp = fopen(filepath, "rb");
if (!fp)
{
snprintf(filepath, sizeof(filepath), "sd:/gameconfig.txt");
fp = fopen(filepath, "rb");
int i;
for (i = 1; i <= 8; ++i)
{
if (fp)
break;
snprintf(filepath, sizeof(filepath), "usb%i:/gameconfig.txt", i);
fp = fopen(filepath, "rb");
}
}
if (!fp)
return 0;
fseek(fp, 0, SEEK_END);
filesize = ftell(fp);
fseek(fp, 0, SEEK_SET);
tempgameconf = (u8 *)MEM2_alloc(filesize);
if (tempgameconf == NULL)
{
tempgameconf = (u8 *)defaultgameconfig;
fclose(fp);
return -1;
}
int ret = fread((void *)tempgameconf, 1, filesize, fp);
fclose(fp);
if (ret != filesize)
{
MEM2_free(tempgameconf);
tempgameconf = (u8 *)defaultgameconfig;
return -1;
}
tempgameconfsize = filesize;
return 0;
}
int ocarina_load_code(const char *CheatFilepath, u8 *gameid)
{
char filepath[150];
char id[7];
memset(id, 0, sizeof(id));
memcpy(id, gameid, 6);
snprintf(filepath, sizeof(filepath), "%s%s.gct", CheatFilepath, id);
gprintf("Ocarina: Searching codes...%s\n", filepath);
FILE *fp = fopen(filepath, "rb");
if (!fp)
{
gprintf("Ocarina: No codes found\n");
return 0;
}
fseek(fp, 0, SEEK_END);
u32 filesize = ftell(fp);
rewind(fp);
code_buf = (u8 *)MEM2_alloc(filesize);
if (!code_buf)
{
gprintf("Ocarina: Not enough memory\n");
fclose(fp);
return 0;
}
code_size = fread(code_buf, 1, filesize, fp);
fclose(fp);
if (code_size == 0)
{
gprintf("Ocarina: could not read file.\n");
MEM2_free(code_buf);
code_buf = NULL;
code_size = 0;
return 0;
}
gprintf("Ocarina: Codes found.\n");
//LoadGameConfig(CheatFilepath);
return code_size;
}
void langpatcher(void *addr, u32 len, u8 languageChoice)
{
u8 ocarinaLangPatchByte = 1;
switch (languageChoice)
{
case JAPANESE:
ocarinaLangPatchByte = 0x00;
break;
case ENGLISH:
ocarinaLangPatchByte = 0x01;
break;
case GERMAN:
ocarinaLangPatchByte = 0x02;
break;
case FRENCH:
ocarinaLangPatchByte = 0x03;
break;
case SPANISH:
ocarinaLangPatchByte = 0x04;
break;
case ITALIAN:
ocarinaLangPatchByte = 0x05;
break;
case DUTCH:
ocarinaLangPatchByte = 0x06;
break;
case S_CHINESE:
ocarinaLangPatchByte = 0x07;
break;
case T_CHINESE:
ocarinaLangPatchByte = 0x08;
break;
case KOREAN:
ocarinaLangPatchByte = 0x09;
break;
default:
return;
}
u8 *addr_start = addr;
u8 *addr_end = addr + len;
while (addr_start < addr_end)
{
if (memcmp(addr_start, langpatch, sizeof(langpatch)) == 0)
langvipatch((u32)addr_start, len, ocarinaLangPatchByte);
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;
}
}
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