Bold - a Network File System (NFS) server

This is Bold. A version 4-series compatible NFS server written in async Rust based on Tokio.

NFS is the most widely used network file system for production server workloads.

(This is a Bold claim)

Goals

Bold's design goals are:

1. simplicity
2. robustness
3. portability
4. extendability
5. performance

Anti goals include complicated compile-time computations, such as macro or type trickery.

Demo and testing

There is a binary bold-mem (in /exec), which reads in a YAML file and serves this as in-memory file system.

On Linux:

# bold-mem/memoryfs.yaml
name: 
contents:
  - !Dir
    name: home
    contents:
      - !Dir
        name: user
        contents:
          - !File
            name: file1
            contents: |
              This is the content of file1
          - !File
            name: file2
            contents: |
              This is the content of file2

You can compile and run it from the repo:

1. cargo run -p bold-mem -- --debug exec/memoryfs.yam (optionally, you can enable the --debug flag)

2. Open another terminal

3. mkdir /tmp/demo

4. sudo mount.nfs4 -n -v -o fg,soft,sec=none,vers=4.0,port=11112 127.0.0.1:/ /tmp/demo

5. ls /tmp/demo/, cat /tmp/demo/home/user/file1
   (have a look around in your mounted file system)

6. Copy files from your local computer into the mounted file system and retrive it back

7. Don't forget to unmount sudo umount /tmp/demo, before stopping bold-mem

State of implementation

Version 4.0

• WIP

Version 4.1

• Not started

Version 4.2

• Not started

Importand RFC for the implementation

• XDR: External Data Representation Standard
• Network File System (NFS) Version 4 Protocol
• Network File System (NFS) Version 4 Minor Version 1 Protocol
• Network File System (NFS) Version 4 Minor Version 2 Protocol

License

Distributed under the MIT license. See LICENSE for more information.