ROM Hack [Release] 3DS_CTR_Decryptor-VOiD

[Lord M]

gtaking... wild LV 4 groudon?? what did you do to the game? XD

 

[intermet]

I get "00040000000EC400.Main.romfs.xorpad" , "00040000000EC400.Main.exefs_norm.xorpad" when i decrypt legend of zelda a link between world.
Is it correct ?

 

[banxian]

ctrtool crashed on extract romfs of Monster hunter 4G.

here is a quick fix on romfs.c for this bug.

void romfs_visit_file(romfs_context* ctx, u32 fileoffset, u32 depth, u32 actions, filepath* rootpath)
{
    u32 siblingoffset = 0;
    filepath currentpath;
    romfs_fileentry* entry = &ctx->fileentry;
 
    do {
        if (!romfs_fileblock_readentry(ctx, fileoffset, entry))
            return; // need breakall?
 
 
        //    fprintf(stdout, "%08X %08X %016llX %016llX %08X ",
        //        getle32(entry->parentdiroffset), getle32(entry->siblingoffset), ctx->datablockoffset+getle64(entry->dataoffset),
        //            getle64(entry->datasize), getle32(entry->unknown));
        //    fwprintf(stdout, L"%ls\n", entry->name);
 
        if (rootpath && rootpath->valid)
        {
            filepath_copy(&currentpath, rootpath);
            filepath_append_utf16(&currentpath, entry->name);
            if (currentpath.valid)
            {
                fprintf(stdout, "Saving %s...\n", currentpath.pathname);
                romfs_extract_datafile(ctx, getle64(entry->dataoffset), getle64(entry->datasize), &currentpath);
            }
            else
            {
                fprintf(stderr, "Error creating directory in root %s\n", rootpath->pathname);
                return; // <- need add a &break in argument
            }
        }
        else
        {
            filepath_init(&currentpath);
            if (settings_get_list_romfs_files(ctx->usersettings))
            {
                u32 i;
 
                for(i=0; i<depth; i++)
                    printf(" ");
                fwprintf(stdout, L"%ls\n", entry->name);
            }
        }
 
        fileoffset = getle32(entry->siblingoffset);
    } while (fileoffset != (~0));
}

original code is a recursion call with only fileoffset upate. always carshed on folder contains lots of file.
if depth is untouched, recursion must be prevent.

 

[einstein95]

and here's

ctrtool crashed on extract romfs of Monster hunter 4G.

here is a quick fix on romfs.c for this bug.

-snip-

original code is a recursion call with only fileoffset upate. always carshed on folder contains lots of file.
if depth is untouched, recursion must be prevent.

and here's a compiled version for everyone unable to install Visual Studio.

 

[VerseHell]

With SD_Decryptor can I extract DLC/updates of my gateway console sd card, rebuild them in cia then install them in another GW console?

 

[cearp]

With SD_Decryptor can I extract DLC/updates of my gateway console sd card, rebuild them in via then install them in another GW console?

yes i'm pretty sure, but i have no idea how to actually do it

 

[OrangeFlavored]

yes i'm pretty sure, but i have no idea how to actually do it

It seems like the instructions at http://gbatemp.net/threads/tutorial-converting-3ds-to-cia-for-dummies.373722/ might be relevant here, trying it myself right now because I want to move some of my DLC over to a different unit.

 

[Hiccup]

Is it possible to get the NSMB2 DLC RomFS somehow with these new developments?

 

[piratesephiroth]

Is it possible to get the NSMB2 DLC RomFS somehow with these new developments?

what?

 

[Vappy]

yes i'm pretty sure, but i have no idea how to actually do it

The decryptor gives you everything to rebuild into a .cia except the header and metadata.

 

[piratesephiroth]

The decryptor gives you everything to rebuild into a .cia except the header and metadata.

Yeah it gives you CFA files (the .app ones)

 

[einstein95]

Yeah it gives you CFA files (the .app ones)

No, it gives you a CXI and, if the app has a manual, a CFA. These contain the ExeFS, exheader and RomFS. CFA files don't have the exheader.

 

[piratesephiroth]

No, it gives you a CXI and, if the app has a manual, a CFA. These contain the ExeFS, exheader and RomFS. CFA files don't have the exheader.

They CAN have exheader. It's just not mandatory.

 

[einstein95]

They CAN have exheader. It's just not mandatory.

http://3dbrew.org/wiki/NCCH#CFA
"The CFA (CTR File Archive) specialisation of the NCCH container, is not executable, but are used in conjunction with CXI files."
How can an installed title not be executable?

 

[gamesquest1]

http://3dbrew.org/wiki/NCCH#CFA
"The CFA (CTR File Archive) specialisation of the NCCH container, is not executable, but are used in conjunction with CXI files."
How can an installed title not be executable?

if its a dlc/addon pack...i think its used for the manuals too on games, basically anything that is read but doesn't contain any sort of running code its just read by something else

 

[piratesephiroth]

http://3dbrew.org/wiki/NCCH#CFA
"The CFA (CTR File Archive) specialisation of the NCCH container, is not executable, but are used in conjunction with CXI files."
How can an installed title not be executable?

Hmm yeah, the CXI has a plainregion

 

[Huntereb]

Has anyone given the SD decryptor a shot with DLC and sharing it with others?

 

[Vappy]

So are any of the current public tools capable of building the header and metadata to remake into a .cia, or is that still a manual process?

 

[Huntereb]

So are any of the current public tools capable of building the header and metadata to remake into a .cia, or is that still a manual process?

No, I don't think I've seen any such tool. Wouldn't be hard to make if you had the time to figure something out.

 

[piratesephiroth]

Has anyone given the SD decryptor a shot with DLC and sharing it with others?

Well, I sucessfully installed a repacked pokemon Y update.
Makerom's body is not ready for the weird exheader though. Required some black magic.