Farming Simulator17 L32/L64 data

[lubr97]

Here is the file for quickbms (l32/l64).

Thanks.
Now I have a .luc file but when I use it with luajit the output is empty. Can someone explain to me all the steps I have to do from the .l64 file to get a readable .lua file? Thanks

[Peppe978]

Here is the file for quickbms (l32/l64).

does not work. only some parts are converted.

[Gerys]

Python version 3.4.3 from the official website. If there is another version, from Microsoft, for example, it does not want to work - it writes a syntax error, and therefore the output file is 0 bytes.

[Gerys]

Quickbms (l32/l64).

see below

[Gerys]

Quickbms (l32/l64).

Write to pm.

[leone98]

hello i use l64decode for python but when open the script python closse immediatly why? thanks for help

[leone98]

Hello i try to convert the l64 to lua with l64 decoder but when run the script with cmd with administator mode, the file not convert in lua. Help me thanks

[aluigi]

@leone98
Please don't open new topics.

[random418]

Ok, solved. The l64 files are obfuscated by a 64-bit key that gets decreased by 8 for each consecutive 8-byte block. After de-obfuscating, you can feed the l64 files to luajit-decompiler to get readable Lua sources.

Hi, could you explain how to de-obfuscate the l64 files? I've been able to run through every step, but when using the LuaJit decompiler, I get an I/O error for most files, probably due to the obfuscation you described.

[leone98]

@random418, read privatemessages that sent thanks

[leone98]

Ok, solved. The l64 files are obfuscated by a 64-bit key that gets decreased by 8 for each consecutive 8-byte block. After de-obfuscating, you can feed the l64 files to luajit-decompiler to get readable Lua sources.

Hi, could you explain how to de-obfuscate the l64 files? I've been able to run through every step, but when using the LuaJit decompiler, I get an I/O error for most files, probably due to the obfuscation you described.

random418 read the private messages thanks

[Tbfarmer]

Seems that the .l64 luajit byte code files have been encrypted, after being dumped with luajit. If somebody could find the decrypt algorithm, I could use a luajit-decompiler to get (close to) the original Lua source. Based on the 2 files by kenny2801, I attach a sample of the plain and encrypted .l64 files.

Ok, solved. The l64 files are obfuscated by a 64-bit key that gets decreased by 8 for each consecutive 8-byte block. After de-obfuscating, you can feed the l64 files to luajit-decompiler to get readable Lua sources.

Since I was interested in the field mission system, I attach AbstractFieldMission.lua, AbstractMission.lua as an example.

How do you deobfuscate the file?

[Mmtrx]

You can find a deobfuscator here: https://github.com/chill1Penguin/l64decode

[thediabl0]

You can find a deobfuscator here: https://github.com/chill1Penguin/l64decode

I can run shapesUnlocker.py with python 3.9, but l64decode.py I can't see nothing...

[wisniagames239]

You can find a deobfuscator here: https://github.com/chill1Penguin/l64decode

I can run shapesUnlocker.py with python 3.9, but l64decode.py I can't see nothing...

You can run the script using cmd where you give the input and output path, but I didn't do it myself, because the message "Python" pops up

[MrPersistent]

Hi, apologies for asking the same question, however I've been trying to get this method figured out for a long time. I have the l64 files which I use l64decode.py to decode but the end result is still in hex form and very hard to read.

Not sure if this is obfuscated or not. I tried to use the recommended luajit decoder on them but it states "cannot load incompatible bytecode".

Hopefully I'm on the right track at least.

I would greatly appreciate any help.

[MrPersistent]

I got it working! The batch file luajit decompiler did not work for me, non of the 3 versions of it did.

This l64decode works great for converting the l64 files. Then to convert the LUAjit files it outputs, I used this luajitdecomiler.

This is the argument to use with l64decode's "l64decode.py" to convert all files in a folder and output them into a new folder.

--recursive "C:\Users\username\Documents\Script Extraction\source" "C:\Users\username\Documents\Script Extraction\luajit"

This is the argument to use with the luajitdecomiler's "main.py" to convert all files in a folder and output them into a new folder.

--recursive "C:\Users\username\Documents\Script Extraction\luajit" --dir_out "C:\Users\username\Documents\Script Extraction\luajitConverted" --catch_asserts

optional use of "--catch_asserts" on the end of luajitdecomiler's argument is to "Prevent most integrity asserts from canceling decompilation"

-Don't output your converted files in the same folder or in a subfolder of the source folder as the converting process will try to read them aswell which will throw some errors and create blank doubled files..

Success at last

Thank-you to everyone and this forum!

[Gerys]

Cool, he finalized the code. The if a ~ = b error when correct if a == b no longer appears).

[Gerys]

There is a new error, now the function a (nil,, 23) does not write nil everywhere, although you need a (nil, nil, 23) .... ))

[Gerys]

This is what I mean luajitdecomiler