From 4ad6b1c220f529083ab9cc64edbe498d01e8c7d5 Mon Sep 17 00:00:00 2001 From: Aurora Date: Wed, 9 Nov 2016 16:33:54 +0100 Subject: [PATCH] Attempt to increase the compatibility of language emulation with some rare games, add checks for the functions --- injector/source/patcher.c | 64 ++++++++++++++++++++++++--------------- 1 file changed, 40 insertions(+), 24 deletions(-) diff --git a/injector/source/patcher.c b/injector/source/patcher.c index 83a6e64..20e2f8a 100644 --- a/injector/source/patcher.c +++ b/injector/source/patcher.c @@ -138,7 +138,7 @@ static inline void loadCustomVerString(u16 *out, u32 *verStringSize, u32 current } } -static inline void loadTitleCodeSection(u64 progId, u8 *code, u32 size) +static inline u32 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 */ @@ -147,24 +147,27 @@ static inline void loadTitleCodeSection(u64 progId, u8 *code, u32 size) progIdToStr(path + 35, progId); IFile file; + u32 ret = 0; if(R_SUCCEEDED(openLumaFile(&file, path))) { u64 fileSize; - if(R_SUCCEEDED(IFile_GetSize(&file, &fileSize)) && fileSize <= size) + if(R_FAILED(IFile_GetSize(&file, &fileSize)) || fileSize > size) ret = 1; + else { u64 total; - IFile_Read(&file, &total, code, fileSize); - if(total != fileSize) svcBreak(USERBREAK_ASSERT); + if(R_FAILED(IFile_Read(&file, &total, code, fileSize)) || total != fileSize) ret = 1; } IFile_Close(&file); } + + return ret; } -static inline void loadTitleLocaleConfig(u64 progId, u8 *regionId, u8 *languageId) +static inline u32 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" */ @@ -173,17 +176,20 @@ static inline void loadTitleLocaleConfig(u64 progId, u8 *regionId, u8 *languageI progIdToStr(path + 29, progId); IFile file; + u32 ret = 0; if(R_SUCCEEDED(openLumaFile(&file, path))) { u64 fileSize; - if(R_SUCCEEDED(IFile_GetSize(&file, &fileSize)) && fileSize > 5 && fileSize < 9) + if(R_FAILED(IFile_GetSize(&file, &fileSize)) || fileSize < 6 || fileSize > 8) ret = 1; + else { char buf[fileSize]; u64 total; - if(R_SUCCEEDED(IFile_Read(&file, &total, buf, fileSize))) + if(R_FAILED(IFile_Read(&file, &total, buf, fileSize))) ret = 1; + else { for(u32 i = 0; i < 7; i++) { @@ -211,6 +217,8 @@ static inline void loadTitleLocaleConfig(u64 progId, u8 *regionId, u8 *languageI IFile_Close(&file); } + + return ret; } static inline u8 *getCfgOffsets(u8 *code, u32 size, u32 *CFGUHandleOffset) @@ -253,7 +261,7 @@ static inline u8 *getCfgOffsets(u8 *code, u32 size, u32 *CFGUHandleOffset) return NULL; } -static inline void patchCfgGetLanguage(u8 *code, u32 size, u8 languageId, u8 *CFGU_GetConfigInfoBlk2_endPos) +static inline u32 patchCfgGetLanguage(u8 *code, u32 size, u8 languageId, u8 *CFGU_GetConfigInfoBlk2_endPos) { u8 *CFGU_GetConfigInfoBlk2_startPos; //Let's find STMFD SP (there might be a NOP before, but nevermind) @@ -293,35 +301,43 @@ static inline void patchCfgGetLanguage(u8 *code, u32 size, u8 languageId, u8 *CF *((u32 *)instr + 1) = 0xE3B00000; //(1 or 2 instructions) => movs r0, 0 (result code) //We're done - return; + return 0; } } } } } + + return 1; } -static inline void patchCfgGetRegion(u8 *code, u32 size, u8 regionId, u32 CFGUHandleOffset) +static inline u32 patchCfgGetRegion(u8 *code, u32 size, u8 regionId, u32 CFGUHandleOffset) { for(u8 *cmdPos = code; cmdPos < code + size - 28; cmdPos += 4) { - static const u32 cfgSecureInfoGetRegionCmdPattern[] = {0xEE1D4F70, 0xE3A00802, 0xE5A40080}; + static const u32 cfgSecureInfoGetRegionCmdPattern[] = {0xEE1D0F70, 0xE3A00802}; u32 *cmp = (u32 *)cmdPos; - if(cmp[0] == cfgSecureInfoGetRegionCmdPattern[0] && cmp[1] == cfgSecureInfoGetRegionCmdPattern[1] && - cmp[2] == cfgSecureInfoGetRegionCmdPattern[2] && *((u16 *)cmdPos + 7) == 0xE59F && - *(u32 *)(cmdPos + 20 + *((u16 *)cmdPos + 6)) == CFGUHandleOffset) + if((cmp[0] & 0xFFFF0FFF) == cfgSecureInfoGetRegionCmdPattern[0]) { - *((u32 *)cmdPos + 4) = 0xE3A00000 | regionId; //mov r0, =regionId - *((u32 *)cmdPos + 5) = 0xE5C40008; //strb r0, [r4, 8] - *((u32 *)cmdPos + 6) = 0xE3B00000; //movs r0, 0 (result code) ('s' not needed but nvm) - *((u32 *)cmdPos + 7) = 0xE5840004; //str r0, [r4, 4] + for(u32 i = 1; i < 4; i++) + if(cmp[i] == cfgSecureInfoGetRegionCmdPattern[1] && *((u16 *)cmdPos + 5 + (2 * i)) == 0xE59F && + *(u32 *)(cmdPos + 16 + (4 * i) + *((u16 *)cmdPos + 4 + (2 * i))) == CFGUHandleOffset) + { + cmp += 3 + i; + cmp[0] = 0xE3A00000 | regionId; //mov r0, =regionId + cmp[1] = 0xE5C40008; //strb r0, [r4, 8] + cmp[2] = 0xE3B00000; //movs r0, 0 (result code) ('s' not needed but nvm) + cmp[3] = 0xE5840004; //str r0, [r4, 4] - //The remaining, not patched, function code will do the rest for us - break; + //The remaining, not patched, function code will do the rest for us + return 0; + } } } + + return 1; } void patchCode(u64 progId, u16 progVer, u8 *code, u32 size) @@ -570,12 +586,12 @@ void patchCode(u64 progId, u16 progVer, u8 *code, u32 size) else if(CONFIG(USELANGEMUANDCODE) && (u32)((progId & 0xFFFFFFF000000000LL) >> 0x24) == 0x0004000) { //External .code section loading - loadTitleCodeSection(progId, code, size); + res += loadTitleCodeSection(progId, code, size); //Language emulation u8 regionId = 0xFF, languageId = 0xFF; - loadTitleLocaleConfig(progId, ®ionId, &languageId); + res += loadTitleLocaleConfig(progId, ®ionId, &languageId); if(regionId != 0xFF || regionId != 0xFF) { @@ -585,8 +601,8 @@ void patchCode(u64 progId, u16 progVer, u8 *code, u32 size) if(CFGU_GetConfigInfoBlk2_endPos == NULL) res++; else { - if(languageId != 0xFF) patchCfgGetLanguage(code, size, languageId, CFGU_GetConfigInfoBlk2_endPos); - if(regionId != 0xFF) patchCfgGetRegion(code, size, regionId, CFGUHandleOffset); + if(languageId != 0xFF) res += patchCfgGetLanguage(code, size, languageId, CFGU_GetConfigInfoBlk2_endPos); + if(regionId != 0xFF) res += patchCfgGetRegion(code, size, regionId, CFGUHandleOffset); } } }