LowLevel/Luma3DS-3GX
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Implemented ips patcher for code.bin, extended patching to applets

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Aurora 2016-11-19 15:44:10 +01:00
parent 1e3362250f
commit cc0cade4d2
1 changed files with 63 additions and 4 deletions
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67
injector/source/patcher.c
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@ -292,6 +292,65 @@ static inline u32 findThrowFatalError(u8* code, u32 size)
return func;
}
static inline bool applyCodeIpsPatch(u64 progId, u8 *code, u32 size)
{
/* Here we look for "/luma/titles/[u64 titleID in hex, uppercase]/code.ips"
If it exists it should be an IPS format patch */
char path[] = "/luma/titles/0000000000000000/code.ips";
progIdToStr(path + 28, progId);
IFile file;
if(!openLumaFile(&file, path)) return true;
bool ret = false;
u8 buffer[5];
u64 total;
if(R_FAILED(IFile_Read(&file, &total, buffer, 5)) || total != 5 || memcmp(buffer, "PATCH", 5) != 0) goto exit;
while(R_SUCCEEDED(IFile_Read(&file, &total, buffer, 3)) && total == 3)
{
if(memcmp(buffer, "EOF", 3) == 0)
{
ret = true;
break;
}
u32 offset = (buffer[0] << 16) | (buffer[1] << 8) | buffer[2];
if(R_FAILED(IFile_Read(&file, &total, buffer, 2)) || total != 2) break;
u32 patchSize = (buffer[0] << 8) | buffer[1];
if(!patchSize)
{
if(R_FAILED(IFile_Read(&file, &total, buffer, 2)) || total != 2) break;
u32 rleSize = (buffer[0] << 8) | buffer[1];
if(offset + rleSize > size) break;
if(R_FAILED(IFile_Read(&file, &total, buffer, 1)) || total != 1) break;
for(u32 i = 0; i < rleSize; i++)
code[offset + i] = buffer[0];
continue;
}
if(offset + patchSize > size) break;
if(R_FAILED(IFile_Read(&file, &total, code + offset, patchSize)) || total != patchSize) break;
}
exit:
IFile_Close(&file);
return ret;
}
static inline bool loadTitleCodeSection(u64 progId, u8 *code, u32 size)
{
/* Here we look for "/luma/titles/[u64 titleID in hex, uppercase]/code.bin"
@ -672,13 +731,15 @@ void patchCode(u64 progId, u16 progVer, u8 *code, u32 size)
) != 3) goto error;
}
if(CONFIG(PATCHGAMES) && (u32)((progId >> 0x20) & 0xFFFFFFEDULL) == 0x00040000)
if(CONFIG(PATCHGAMES) && (u32)((progId >> 0x20) & 0xFFFFFFCDULL) == 0x00040000)
{
u8 regionId = 0xFF,
languageId;
if(!loadTitleCodeSection(progId, code, size) ||
!loadTitleLocaleConfig(progId, &regionId, &languageId)) goto error;
!loadTitleLocaleConfig(progId, &regionId, &languageId) ||
!patchRomfsRedirection(progId, code, size) ||
!applyCodeIpsPatch(progId, code, size)) goto error;
if(regionId != 0xFF)
{
@ -690,8 +751,6 @@ void patchCode(u64 progId, u16 progVer, u8 *code, u32 size)
patchCfgGetRegion(code, size, regionId, CFGUHandleOffset);
}
if(!patchRomfsRedirection(progId, code, size)) goto error;
}
return;