LowLevel/Luma3DS-3GX
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Added RomFS redirection courtesy of @delebile, changed structure for game patches: language emulation txts now go to /luma/titles/<titleid>/locale.txt, code.bins go to /luma/titles/<titleid>/code.bin, RomFSes go to /luma/titles/<titleid>/romfs

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Aurora
2016-11-16 03:41:59 +01:00
parent 1fcab825bf
commit b5336c81cc
10 changed files with 346 additions and 111 deletions
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312
injector/source/patcher.c
View File

@@ -4,6 +4,7 @@
#include "strings.h"
#include "ifile.h"
#include "CFWInfo.h"
#include "../build/bundled.h"
static CFWInfo info;
@@ -134,97 +135,6 @@ exit:
IFile_Close(&file);
}
static inline bool loadTitleCodeSection(u64 progId, u8 *code, u32 size)
{
/* Here we look for "/luma/code_sections/[u64 titleID in hex, uppercase].bin"
If it exists it should be a decompressed binary code file */
char path[] = "/luma/code_sections/0000000000000000.bin";
progIdToStr(path + 35, progId);
IFile file;
if(R_FAILED(openLumaFile(&file, path))) return true;
bool ret;
u64 fileSize;
if(R_FAILED(IFile_GetSize(&file, &fileSize)) || fileSize > size) ret = false;
else
{
u64 total;
ret = R_SUCCEEDED(IFile_Read(&file, &total, code, fileSize)) && total == fileSize;
}
IFile_Close(&file);
return ret;
}
static inline bool loadTitleLocaleConfig(u64 progId, u8 *regionId, u8 *languageId)
{
/* Here we look for "/luma/locales/[u64 titleID in hex, uppercase].txt"
If it exists it should contain, for example, "EUR IT" */
char path[] = "/luma/locales/0000000000000000.txt";
progIdToStr(path + 29, progId);
IFile file;
if(R_FAILED(openLumaFile(&file, path))) return true;
bool ret;
u64 fileSize;
if(R_FAILED(IFile_GetSize(&file, &fileSize)) || fileSize < 6 || fileSize > 8)
{
ret = false;
goto exit;
}
char buf[8];
u64 total;
if(R_FAILED(IFile_Read(&file, &total, buf, fileSize)))
{
ret = false;
goto exit;
}
u32 i,
j;
for(i = 0; i < 7; i++)
{
static const char *regions[] = {"JPN", "USA", "EUR", "AUS", "CHN", "KOR", "TWN"};
if(memcmp(buf, regions[i], 3) == 0)
{
*regionId = (u8)i;
break;
}
}
for(j = 0; j < 12; j++)
{
static const char *languages[] = {"JP", "EN", "FR", "DE", "IT", "ES", "ZH", "KO", "NL", "PT", "RU", "TW"};
if(memcmp(buf + 4, languages[j], 2) == 0)
{
*languageId = (u8)j;
break;
}
}
ret = i != 7 && j != 12;
exit:
IFile_Close(&file);
return ret;
}
static inline u8 *getCfgOffsets(u8 *code, u32 size, u32 *CFGUHandleOffset)
{
/* HANS:
@@ -285,7 +195,6 @@ static inline bool patchCfgGetLanguage(u8 *code, u32 size, u8 languageId, u8 *CF
u8 *calledFunction = instr;
u32 i = 0;
bool found;
do
{
@@ -307,7 +216,7 @@ static inline bool patchCfgGetLanguage(u8 *code, u32 size, u8 languageId, u8 *CF
i++;
}
while(i < 2 && !found && calledFunction[3] == 0xEA);
while(i < 2 && calledFunction[3] == 0xEA);
}
}
@@ -339,6 +248,214 @@ static inline void patchCfgGetRegion(u8 *code, u32 size, u8 regionId, u32 CFGUHa
}
}
static u32 findNearestStmfd(u8* code, u32 pos)
{
while(pos > 0)
{
if(*(u16 *)(code + pos + 2) == 0xE92D) return pos;
pos -= 4;
}
return 0;
}
static u32 findFunctionCommand(u8* code, u32 size, u32 command)
{
u32 func = 0;
for(u32 i = 0; i < size && !func; i += 4)
if(*(u32 *)(code + i) == command) func = i;
return !func ? 0 : findNearestStmfd(code, func);
}
static inline u32 findThrowFatalError(u8* code, u32 size)
{
u32 connectToPort = 0;
for(u32 i = 0; i < size && !connectToPort; i += 4)
if(*(u32 *)(code + i) == 0xEF00002D) connectToPort = i - 4;
if(!connectToPort) return 0;
u32 func = 0;
for(u32 i = 0; i < size && !func; i += 4)
{
if(*(u32 *)(code + i) != MAKE_BRANCH_LINK(i, connectToPort)) continue;
func = findNearestStmfd(code, i);
for(u32 pos = func + 4; func != 0 && pos <= size - 4 && *(u16 *)(code + pos + 2) != 0xE92D; pos += 4)
if(*(u32 *)(code + pos) == 0xE200167E) func = 0;
}
return func;
}
static inline bool loadTitleCodeSection(u64 progId, u8 *code, u32 size)
{
/* Here we look for "/luma/titles/[u64 titleID in hex, uppercase]/code.bin"
If it exists it should be a decrypted and decompressed binary code file */
char path[] = "/luma/titles/0000000000000000/code.bin";
progIdToStr(path + 28, progId);
IFile file;
if(R_FAILED(openLumaFile(&file, path))) return true;
bool ret;
u64 fileSize;
if(R_FAILED(IFile_GetSize(&file, &fileSize)) || fileSize > size) ret = false;
else
{
u64 total;
ret = R_SUCCEEDED(IFile_Read(&file, &total, code, fileSize)) && total == fileSize;
}
IFile_Close(&file);
return ret;
}
static inline bool loadTitleLocaleConfig(u64 progId, u8 *regionId, u8 *languageId)
{
/* Here we look for "/luma/titles/[u64 titleID in hex, uppercase]/locale.txt"
If it exists it should contain, for example, "EUR IT" */
char path[] = "/luma/titles/0000000000000000/locale.txt";
progIdToStr(path + 28, progId);
IFile file;
if(R_FAILED(openLumaFile(&file, path))) return true;
bool ret;
u64 fileSize;
if(R_FAILED(IFile_GetSize(&file, &fileSize)) || fileSize < 6 || fileSize > 8)
{
ret = false;
goto exit;
}
char buf[8];
u64 total;
if(R_FAILED(IFile_Read(&file, &total, buf, fileSize)))
{
ret = false;
goto exit;
}
u32 i,
j;
for(i = 0; i < 7; i++)
{
static const char *regions[] = {"JPN", "USA", "EUR", "AUS", "CHN", "KOR", "TWN"};
if(memcmp(buf, regions[i], 3) == 0)
{
*regionId = (u8)i;
break;
}
}
for(j = 0; j < 12; j++)
{
static const char *languages[] = {"JP", "EN", "FR", "DE", "IT", "ES", "ZH", "KO", "NL", "PT", "RU", "TW"};
if(memcmp(buf + 4, languages[j], 2) == 0)
{
*languageId = (u8)j;
break;
}
}
ret = i != 7 && j != 12;
exit:
IFile_Close(&file);
return ret;
}
static bool patchRomfsRedirection(u64 progId, u8* code, u32 size)
{
/* Here we look for "/luma/titles/[u64 titleID in hex, uppercase]/romfs"
If it exists it should be a decrypted raw RomFS */
char path[] = "/luma/titles/0000000000000000/romfs";
progIdToStr(path + 28, progId);
IFile file;
if(R_FAILED(openLumaFile(&file, path))) return true;
bool ret;
u64 romfsSize;
if(R_FAILED(IFile_GetSize(&file, &romfsSize)))
{
ret = false;
goto exit;
}
u64 total;
u32 header;
if(R_FAILED(IFile_Read(&file, &total, &header, 4)) || total != 4 || header != 0x43465649)
{
ret = false;
goto exit;
}
u32 fsOpenFileDirectly = findFunctionCommand(code, size, 0x08030204),
fsOpenLinkFile = findFunctionCommand(code, size, 0x80C0000),
throwFatalError = findThrowFatalError(code, size);
if(!fsOpenFileDirectly || !throwFatalError)
{
ret = false;
goto exit;
}
//Setup the payload
memcpy(code + throwFatalError, romfsredir_bin, romfsredir_bin_size);
*((u32 *)(code + throwFatalError + 0x10)) = *(u32 *)(code + fsOpenFileDirectly);
*((u32 *)(code + throwFatalError + romfsredir_bin_size - 0x08)) = sizeof(path);
*((u64 *)(code + throwFatalError + romfsredir_bin_size - 0x10)) = romfsSize - 0x1000ULL;
*((u64 *)(code + throwFatalError + romfsredir_bin_size - 0x18)) = 0x1000ULL;
*((u32 *)(code + throwFatalError + romfsredir_bin_size - 0x20)) = fsOpenFileDirectly + 0x100000;
//Place the hooks
*(u32 *)(code + fsOpenFileDirectly) = MAKE_BRANCH(fsOpenFileDirectly, throwFatalError);
if(fsOpenLinkFile != 0)
{
*(u32 *)(code + fsOpenLinkFile) = 0xE3A03003; //mov r3, #3
*(u32 *)(code + fsOpenLinkFile + 4) = MAKE_BRANCH(fsOpenLinkFile + 4, throwFatalError);
memcpy(code + fsOpenLinkFile + 8, path, sizeof(path));
*(u32 *)(code + throwFatalError + romfsredir_bin_size - 4) = fsOpenLinkFile + 8 + 0x100000; //String pointer
}
else
{
memcpy(code + throwFatalError + romfsredir_bin_size, path, 0x30);
*(u32 *)(code + throwFatalError + romfsredir_bin_size - 4) = throwFatalError + romfsredir_bin_size + 0x100000; //String pointer
}
ret = true;
exit:
IFile_Close(&file);
return ret;
}
void patchCode(u64 progId, u16 progVer, u8 *code, u32 size)
{
loadCFWInfo();
@@ -575,12 +692,13 @@ void patchCode(u64 progId, u16 progVer, u8 *code, u32 size)
) != 3) goto error;
}
else if(CONFIG(USELANGEMUANDCODE) && (u32)((progId & 0xFFFFFFF000000000LL) >> 0x24) == 0x0004000)
else if(CONFIG(PATCHGAMES) && (u32)((progId & 0xFFFFFFF000000000LL) >> 0x24) == 0x0004000)
{
u8 regionId = 0xFF,
languageId;
if(!loadTitleLocaleConfig(progId, &regionId, &languageId) ||
!loadTitleCodeSection(progId, code, size)) goto error;
if(!loadTitleCodeSection(progId, code, size) ||
!loadTitleLocaleConfig(progId, &regionId, &languageId)) goto error;
if(regionId != 0xFF)
{
@@ -592,6 +710,8 @@ void patchCode(u64 progId, u16 progVer, u8 *code, u32 size)
patchCfgGetRegion(code, size, regionId, CFGUHandleOffset);
}
if(!patchRomfsRedirection(progId, code, size)) goto error;
}
return;

5
injector/source/patcher.h
View File

@@ -2,6 +2,9 @@
#include <3ds/types.h>
#define MAKE_BRANCH(src,dst) (0xEA000000 | ((u32)((((u8 *)(dst) - (u8 *)(src)) >> 2) - 2) & 0xFFFFFF))
#define MAKE_BRANCH_LINK(src,dst) (0xEB000000 | ((u32)((((u8 *)(dst) - (u8 *)(src)) >> 2) - 2) & 0xFFFFFF))
#define CONFIG(a) (((info.config >> (a + 20)) & 1) != 0)
#define MULTICONFIG(a) ((info.config >> (a * 2 + 8)) & 3)
#define BOOTCONFIG(a, b) ((info.config >> a) & b)
@@ -28,7 +31,7 @@ enum singleOptions
USESYSFIRM,
LOADEXTFIRMSANDMODULES,
USECUSTOMPATH,
USELANGEMUANDCODE,
PATCHGAMES,
PATCHVERSTRING,
SHOWGBABOOT,
PATCHACCESS