smb-pyfuse

Mount SMB/CIFS shares as local directories using FUSE.

Built on top of smbprotocol and fuse-python, smb-pyfuse exposes a remote SMB share as a regular filesystem — supporting reads, writes, directory listing, symlinks, and more.

Features

• Mount any SMB2/SMB3 share as a local directory
• Username/password and Kerberos authentication
• Optional SMB3 encryption
• Foreground and background (daemon) modes
• allow_other / allow_root FUSE mount options
• Programmatic Python API (mount, unmount, SmbFuseFS)

Supported FUSE Operations

Prerequisites

System Dependencies

sudo apt install libkrb5-dev build-essential python3-dev

FUSE

FUSE must be available on the host:

# Debian / Ubuntu
sudo apt install fuse3 libfuse-dev

# To allow non-root users to use allow_other:
# Uncomment 'user_allow_other' in /etc/fuse.conf

Installation

# Clone the repo
git clone https://github.com/<your-org>/smb-pyfuse.git
cd smb-pyfuse

# Install with uv (recommended)
uv sync --frozen

# Or with pip
pip install .

Usage

CLI

Mount a share (foreground mode):

uv run main.py mount /mnt/smb myserver.example.com myshare -u 'DOMAIN\user' -p 'password' -f

Mount with Kerberos (requires a valid TGT in the credential cache):

kinit user@REALM
uv run main.py mount /mnt/smb myserver.example.com myshare --kerberos -f

Mount in the background (daemon mode):

uv run main.py mount /mnt/smb myserver.example.com myshare -u user -p pass

Unmount:

uv run main.py unmount /mnt/smb

CLI Options

positional arguments:
  mountpoint            Local directory to mount the share at
  server                SMB server hostname or IP address
  share                 Share name (without backslashes)

options:
  -u, --username        SMB username
  -p, --password        SMB password
  --port                SMB TCP port (default: 445)
  --kerberos            Authenticate with Kerberos TGT
  --encrypt             Request SMB3 encryption
  --connection-timeout  TCP connection timeout in seconds (default: 60)
  -f, --foreground      Run in foreground (block until unmounted)
  --allow-other         Allow other users to access the mount
  --allow-root          Allow root to access the mount
  -v, --verbose         Enable debug logging

Python API

from smb_pyfuse import mount, unmount

# Mount (blocks in foreground mode)
mount(
    mountpoint="/mnt/smb",
    server="myserver.example.com",
    share="myshare",
    username="alice",
    password="s3cr3t",
    foreground=True,
)

# Unmount
unmount("/mnt/smb")

Or use the filesystem class directly:

from smb_pyfuse import SmbFuseFS

fs = SmbFuseFS(
    server="myserver.example.com",
    share="myshare",
    username="alice",
    password="s3cr3t",
)
fs.fuse_args.mountpoint = "/mnt/smb"
fs.fuse_args.add("allow_other")
fs.main()

License

MIT