LowLevel/Luma3DS-3GX
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Implement loading of exheaders from SD/CTRNAND (must be called luma/titles/TITLEID/exheader.bin), thanks to @HiddenRambler!

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This commit is contained in:
Aurora Wright
2017-08-01 17:27:14 +02:00
parent 3907c46980
commit a0c2b43b34
3 changed files with 140 additions and 88 deletions
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88
sysmodules/loader/source/patcher.c
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@@ -3,12 +3,8 @@
#include "memory.h"
#include "strings.h"
#include "fsldr.h"
#include "ifile.h"
#include "../build/bundled.h"
static u32 config, multiConfig, bootConfig;
static bool isN3DS, isSafeMode, isSdMode;
static u32 patchMemory(u8 *start, u32 size, const void *pattern, u32 patSize, s32 offset, const void *replace, u32 repSize, u32 count)
{
u32 i;
@@ -32,7 +28,7 @@ static u32 patchMemory(u8 *start, u32 size, const void *pattern, u32 patSize, s3
return i;
}
static Result fileOpen(IFile *file, FS_ArchiveID archiveId, const char *path, int flags)
Result fileOpen(IFile *file, FS_ArchiveID archiveId, const char *path, int flags)
{
FS_Path filePath = {PATH_ASCII, strnlen(path, 255) + 1, path},
archivePath = {PATH_EMPTY, 1, (u8 *)""};
@@ -73,32 +69,6 @@ static u32 checkLumaDir(const char *path)
return dirCheck(archiveId, path) ? archiveId : 0;
}
static inline void loadCFWInfo(void)
{
static bool infoLoaded = false;
s64 out;
if(infoLoaded) return;
if(R_FAILED(svcGetSystemInfo(&out, 0x10000, 3))) svcBreak(USERBREAK_ASSERT);
config = (u32)out;
if(R_FAILED(svcGetSystemInfo(&out, 0x10000, 4))) svcBreak(USERBREAK_ASSERT);
multiConfig = (u32)out;
if(R_FAILED(svcGetSystemInfo(&out, 0x10000, 5))) svcBreak(USERBREAK_ASSERT);
bootConfig = (u32)out;
if(R_FAILED(svcGetSystemInfo(&out, 0x10000, 0x201))) svcBreak(USERBREAK_ASSERT);
isN3DS = (bool)out;
if(R_FAILED(svcGetSystemInfo(&out, 0x10000, 0x202))) svcBreak(USERBREAK_ASSERT);
isSafeMode = (bool)out;
if(R_FAILED(svcGetSystemInfo(&out, 0x10000, 0x203))) svcBreak(USERBREAK_ASSERT);
isSdMode = (bool)out;
IFile file;
if(isSafeMode) fileOpen(&file, ARCHIVE_SDMC, "/", FS_OPEN_READ); //Init SD card if SAFE_MODE is being booted
infoLoaded = true;
}
static inline bool secureInfoExists(void)
{
static bool exists = false;
@@ -353,7 +323,7 @@ exit:
return ret;
}
static inline bool loadTitleCodeSection(u64 progId, u8 *code, u32 size)
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 */
@@ -363,22 +333,60 @@ static inline bool loadTitleCodeSection(u64 progId, u8 *code, u32 size)
IFile file;
if(!openLumaFile(&file, path)) return true;
if(!openLumaFile(&file, path)) return false;
bool ret;
u64 fileSize;
if(R_FAILED(IFile_GetSize(&file, &fileSize)) || fileSize > size) ret = false;
if(R_FAILED(IFile_GetSize(&file, &fileSize)) || fileSize > size) goto error;
else
{
u64 total;
ret = R_SUCCEEDED(IFile_Read(&file, &total, code, fileSize)) && total == fileSize;
if(R_FAILED(IFile_Read(&file, &total, code, fileSize)) || total != fileSize) goto error;
}
IFile_Close(&file);
return ret;
return true;
error:
IFile_Close(&file);
svcBreak(USERBREAK_ASSERT);
while(true);
}
bool loadTitleExheader(u64 progId, exheader_header *exheader)
{
/* Here we look for "/luma/titles/[u64 titleID in hex, uppercase]/exheader.bin"
If it exists it should be a decrypted exheader */
char path[] = "/luma/titles/0000000000000000/exheader.bin";
progIdToStr(path + 28, progId);
IFile file;
if(!openLumaFile(&file, path)) return false;
u64 fileSize;
if(R_FAILED(IFile_GetSize(&file, &fileSize)) || fileSize != sizeof(exheader_header)) goto error;
else
{
u64 total;
if(R_FAILED(IFile_Read(&file, &total, exheader, fileSize)) || total != fileSize) goto error;
}
IFile_Close(&file);
return true;
error:
IFile_Close(&file);
svcBreak(USERBREAK_ASSERT);
while(true);
}
static inline bool loadTitleLocaleConfig(u64 progId, u8 *mask, u8 *regionId, u8 *languageId, u8 *countryId, u8 *stateId)
@@ -570,8 +578,6 @@ static inline bool patchLayeredFs(u64 progId, u8 *code, u32 size, u32 textSize,
void patchCode(u64 progId, u16 progVer, u8 *code, u32 size, u32 textSize, u32 roSize, u32 dataSize, u32 roAddress, u32 dataAddress)
{
loadCFWInfo();
if(progId == 0x0004003000008F02LL || //USA Home Menu
progId == 0x0004003000008202LL || //JPN Home Menu
progId == 0x0004003000009802LL || //EUR Home Menu
@@ -873,8 +879,7 @@ void patchCode(u64 progId, u16 progVer, u8 *code, u32 size, u32 textSize, u32 ro
if(CONFIG(PATCHGAMES))
{
if(!loadTitleCodeSection(progId, code, size) ||
!applyCodeIpsPatch(progId, code, size)) goto error;
if(!applyCodeIpsPatch(progId, code, size)) goto error;
if((u32)((progId >> 0x20) & 0xFFFFFFEDULL) == 0x00040000)
{
@@ -894,5 +899,4 @@ void patchCode(u64 progId, u16 progVer, u8 *code, u32 size, u32 textSize, u32 ro
error:
svcBreak(USERBREAK_ASSERT);
while(true);
}