The Fuse-rs crate is an rust library to implement Fuse daemons based on the Linux FUSE device (/dev/fuse) or the virtiofs draft specification.
Linux FUSE is an userspace filesystem framework, and the /dev/fuse device node is the interface for userspace filesystem daemons to communicate with the in-kernel fuse driver.
And the virito-fs specification extends the FUSE framework into the virtualization world, which uses the Virtio protocol to transfer FUSE requests and responses between the Fuse client and server. With virtio-fs, the Fuse client runs within the guest kernel and the Fuse server runs on the host userspace or hardware.
So the fuse-rs crate is a library to communicate with the Linux FUSE clients, which includes:
- ABI layer, which defines all data structures shared between linux Fuse framework and Fuse daemons.
- API layer, defines the interfaces for Fuse daemons to implement a userspace file system.
- Transport layer, which supports both the Linux Fuse device and virtio-fs protocol.
- VFS/pseudo_fs, an abstraction layer to support multiple file systems by a single virtio-fs device.
- A sample passthrough file system implementation, which passes through files from daemons to clients.
TODO: This section describes how the crate is used.
TODO: Usage examples.
use fuse_rs;
...The crate reuses source code from the Cloud Hypervisor project and Crosvm project.
This project is licensed under either of
- Apache License, Version 2.0
- BSD-3-Clause License