Extend native file handling in OS X (was OSXFUSE)

FUSE for macOS

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Download FUSE 4.6.1

FUSE for macOS

  -  5.9 MB  -  Open Source
FUSE for macOS (was OSXFUSE) allows you to extend macOS's native file handling capabilities via third-party file systems. It is a successor to MacFUSE, which has been used as a software building block by dozens of products, but is no longer being maintained.

FUSE for Mac Features
As a user, installing the FUSE for macOS software package will let you use any third-party FUSE file system. Legacy MacFUSE file systems are supported through the optional MacFUSE compatibility layer.

As a developer, you can use the FUSE SDK to write numerous types of new file systems as regular user space programs. The content of these file systems can come from anywhere: from the local disk, from across the network, from memory, or any other combination of sources. Writing a file system using FUSE is orders of magnitude easier and quicker than the traditional approach of writing in-kernel file systems. Since FUSE file systems are regular applications (as opposed to kernel extensions), you have just as much flexibility and choice in programming tools, debuggers, and libraries as you have if you were developing standard macOS applications.

How It Works
In more technical terms, FUSE implements a mechanism that makes it possible to implement a fully functional file system in a user-space program on macOS. It provides multiple APIs, one of which is a superset of the FUSE API (file system in user space) that originated on Linux. Therefore, many existing FUSE file systems become readily usable on Mac.

The FUSE for Mac OS software consists of a kernel extension and various user space libraries and tools. It comes with C-based and Objective-C-based SDKs. If you prefer another language (say, Python or Java), you should be able to create file systems in those languages after you install the relevant language bindings yourself.

The filesystems repository contains source code for several exciting and useful file systems for you to browse, compile, and build upon, such as sshfs, procfs, AccessibilityFS, GrabFS, LoopbackFS, SpotlightFS, and YouTubeFS.

  • FUSE 4.6.1 Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

What's new in this version:

- Work around unintended modification time updates on Apple Silicon Macs running macOS 12 and later
- When mapping I/O buffers to memory in the kernel extension, the desired memory protection level needs to be specified on Apple Silicon Macs. Mapping the buffer with the default protection level results in unnecessary writes and unintended modification time updates in the future. However, there is no public API for specifying the desired memory protection level on macOS 11.
- As a result of this change, macFUSE ships with dedicated kernel extensions for macOS 12 and macOS 14 in addition to the macOS 11 kernel extension.
- Add "Open Getting Started" button to the "System Extension Blocked" alert that is displayed when the user is prompted to allow loading the kernel extension. Clicking on "Open Getting Started" opens the Getting Started wiki document.
- Remove ioctl FSCTLSETACLSTATE (extended security). Extended security (including support for ACLs) can be enabled at mount time by using the extended_security option.
- Remove unimplemented ioctl FUSEDEVGETMOUNTERPID from headers
- Clean up kernel extension code

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