FUSE filesystem Python scripts for Nintendo console files
Project description
ninfs
ninfs (formerly fuse-3ds) is a FUSE program to extract data from Nintendo game consoles. It works by presenting a virtual filesystem with the contents of your games, NAND, or SD card contents, and you can browse and copy out just the files that you need.
Windows, macOS, and Linux are supported.
Supported types
- Nintendo 3DS:
- CTR Cart Image (".3ds", ".cci")
- CDN contents ("cetk", "tmd", and contents)
- CTR Importable Archive (".cia")
- Executable Filesystem (".exefs", "exefs.bin")
- Nintendo 3DS NAND backup ("nand.bin")
- NCCH (".cxi", ".cfa", ".ncch", ".app")
- Read-only Filesystem (".romfs", "romfs.bin")
- SD Card Contents ("Nintendo 3DS" from SD)
- 3DSX Homebrew (".3dsx")
- Titles directory ("title" from NAND or SD)
- Nintendo DS / DSi
- Nintendo DSi NAND backup ("nand_dsi.bin")
- Nintendo DS ROM image (".nds", ".srl")
- Nintendo Switch
- Nintendo Switch NAND backup ("rawnand.bin")
Example uses
- Mount a NAND backup and browse CTRNAND, TWLNAND, and others, and write back to them without having to extract and decrypt them first.
- Browse decrypted SD card contents. Dump installed games and saves, or copy contents between two system's SD contents.
- Extract a game's files out of a CIA, CCI (".3ds"), NCCH, RomFS, raw CDN contents, just by mounting them and browsing its files. Or use the virtual decrypted file and start playing the game in Citra right away.
Setup
For 3DS types, The ARM9 bootROM is required. You can dump it using boot9strap, which can be set up by 3DS Hacks Guide. It is checked in order of:
BOOT9_PATH
environment variable (if set)%APPDATA%\3ds\boot9.bin
(Windows-specific)~/Library/Application Support/3ds/boot9.bin
(macOS-specific)~/.3ds/boot9.bin
~/3ds/boot9.bin
boot9_prot.bin
can also be used in all of these locations.
"~
" means the user's home directory. "~/3ds
" would mean /Users/username/3ds
on macOS and C:\Users\username\3ds
on Windows.
CDN, CIA, and NCCH mounting may need SeedDB for mounting NCCH containers of newer games (2015+) that use seeds.
SeedDB is checked in order of:
SEEDDB_PATH
environment variable (if set)%APPDATA%\3ds\seeddb.bin
(Windows-specific)~/Library/Application Support/3ds/seeddb.bin
(macOS-specific)~/.3ds/seeddb.bin
~/3ds/seeddb.bin
It can also be provided with the --seeddb
argument.
Python 3.6.1+ and pycryptodomex are required. appJar is required for the GUI.
- fusepy is pre-included until the main fusepy repository has full Windows support.
Windows
Windows 7 or later is required.
A standalone executable with a GUI is available for use. You can get a single executable for download from GitHub or the GBAtemp Download Center A window will appear allowing you to choose mount options easily.
Python does not have to be installed, but WinFsp is still required.
Install with existing Python
- Install the latest version of Python 3. The x86-64 version is preferred on 64-bit Windows.
- Install the latest version of WinFsp.
- Install ninfs with
py -3 -m pip install --upgrade https://github.com/ihaveamac/ninfs/archive/master.zip
.- With GUI support:
py -3 -m pip install --upgrade https://github.com/ihaveamac/ninfs/archive/master.zip#egg=ninfs[gui]
- With GUI support:
macOS
A standalone application bundle with a GUI is available for use. OS X 10.9.5 Mavericks or later is required. You can download the DMG from GitHub.
Python does not have to be installed, but FUSE for macOS is still required.
Install with existing Python
Versions of macOS supported by Apple are highly recommended. Mac OS X Snow Leopard is the lowest version that should work.
- Install the latest version of Python 3. The recommended way is Homebrew. You can also use an installer from python.org or a tool like pyenv.
- Install the latest version of FUSE for macOS.
- Install ninfs with
python3 -m pip install --upgrade https://github.com/ihaveamac/ninfs/archive/master.zip
.- With GUI support:
python3 -m pip install --upgrade https://github.com/ihaveamac/ninfs/archive/master.zip#egg=ninfs[gui]
- With GUI support:
Linux
- Arch Linux: ninfs is available in the AUR: normal, with gui, git, git with gui
- Recent distributions should have Python 3.6.1 or later pre-installed, or included in its repositories. If not, you can use an extra repository (e.g. deadsnakes's PPA for Ubuntu), build from source, or use a tool like pyenv.
- Most distributions should have fuse enabled/installed by default. Use your package manager if it isn't.
- Install ninfs with
python3 -m pip install --upgrade --user https://github.com/ihaveamac/ninfs/archive/master.zip
.--user
is not needed if you are using a virtual environment.- With GUI support:
python3 -m pip install --upgrade --user https://github.com/ihaveamac/ninfs/archive/master.zip#egg=ninfs[gui]
- You can add a desktop entry with
python3 -m ninfs --install-desktop-entry
. If you want to install to a location other than the default ($XDG_DATA_HOME
), you can add another argument with a path like/usr/local/share
.
Usage
Graphical user interface
A GUI can be used, if ninfs was installed with GUI support, by specifying the type to be gui
(e.g. Windows: py -3 -mninfs gui
, *nix: python3 -mninfs gui
). The GUI controls mounting and unmounting.
Command line
The main way to run a mount script after installing is using "mount_<type>
" (e.g. mount_cci game.3ds mountpoint
). Use -h
to view arguments for a script.
If it doesn't work, the other way is to use <python-cmd> -mninfs <type>
(e.g. Windows: py -3 -mninfs cci game.3ds mountpoint
, *nix: python3 -mninfs cci game.3ds mountpoint
).
Windows users can use a drive letter like F:
as a mountpoint, or use *
and a drive letter will be automatically chosen.
Unmounting
- Windows: Press Ctrl + C in the command prompt/PowerShell window.
- macOS: Two methods:
- Right-click on the mount and choose "Eject “drive name”".
- Run from terminal:
diskutil unmount /path/to/mount
- Linux: Run from terminal:
fusermount -u /path/to/mount
Examples
- Mount a 3DS game card dump:
mount_cci game.3ds mountpoint
- Mount contents downloaded from CDN:
mount_cdn cdn_directory mountpoint
- Mount CDN contents with a specific decrypted titlekey:
mount_cdn --dec-key 3E3E6769742E696F2F76416A65423C3C cdn_directory mountpoint
- Mount a CIA:
mount_cia game.cia mountpoint
- Mount an ExeFS:
mount_exefs exefs.bin mountpoint
- Mount a 3DS NAND backup with
essential.exefs
embedded:
mount_nandctr nand.bin mountpoint
- Mount a 3DS NAND backup with an OTP file (Counter is automatically generated):
mount_nandctr --otp otp.bin nand.bin mountpoint
- Mount a 3DS NAND backup with OTP and CID files:
mount_nandctr --otp otp.bin --cid nand_cid.bin nand.bin mountpoint
- Mount a 3DS NAND backup with OTP file and a CID hexstring:
mount_nandctr --otp otp.bin --cid 7468616E6B7334636865636B696E6721 nand.bin mountpoint
- Mount a DSi NAND backup (Counter is automatically generated):
mount_nandtwl --console-id 4E696E74656E646F nand_dsi.bin mountpoint
- Mount a DSi NAND backup with a Console ID hexstring and specified CID hexstring:
mount_nandtwl --console-id 4E696E74656E646F --cid 576879446F657344536945786973743F nand_dsi.bin mountpoint
- Mount a DSi NAND backup with a Console ID file and specified CID file:
mount_nandtwl --console-id ConsoleID.bin --cid CID.bin nand_dsi.bin mountpoint
- Mount an NCCH container (.app, .cxi, .cfa, .ncch):
mount_ncch content.cxi mountpoint
- Mount a RomFS:
mount_romfs romfs.bin mountpoint
- Mount a
Nintendo 3DS
directory from an SD card:
mount_sd --movable movable.sed "/path/to/Nintendo 3DS" mountpoint
- Mount a Nintendo DS ROM image (NDS/SRL,
mount_nds
also works):
mount_srl game.nds
- Mount a 3DSX homebrew application:
mount_threedsx boot.3dsx mountpoint
- Mount an entire
title
directory (like one from a NAND backup, or in an SD card mount):
mount_titledir title mountpoint
Useful tools
- wwylele's 3ds-save-tool can be used to extract game saves and extra data (DISA and DIFF, respectively).
- wwylele's save3ds is a FUSE mount for 3DS save files. Currently only supports macOS and Linux.
- OSFMount for Windows can mount FAT12/FAT16 partitions in NAND backups.
Related tools
- Maschell's fuse-wiiu can be used to mount Wii U contents.
- koolkdev's wfslib has wfs-fuse to mount the Wii U mlc dumps and usb devices.
License/Credits
ninfs
is under the MIT license.fuse.py
is under the ISC license (taken fromsetup.py
).hac/aes.cpp
andhac/aes.hpp
are from @openluopworld's aes_128 commitb5b7f55
, and uses the MIT License.hac/ccrypto.cpp
AES-XTS part is by @luigoalma, based on @plutooo's crypto module; Python module implementation by me(@ihaveamac).
Special thanks to @Stary2001 for help with NAND crypto (especially TWL), and @d0k3 for SD crypto.
OTP code is from Stary2001/3ds_tools, and is under the MIT license.
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