Struct PasstManager 

pub struct PasstManager { /* private fields */ }

Manages a passt daemon instance for a single box.

Implementations

impl PasstManager

pub fn new(socket_dir: &Path) -> Self

Create a new PasstManager.

The socket and PID file are placed directly in the provided runtime socket directory (the same directory that holds the exec/PTY control sockets, e.g. /tmp/a3s-box-sockets/<box_id>).

This directory MUST be reachable by the user passt runs as. When passt is started as root it drops privileges to nobody, so the socket directory has to be world-traversable — the box’s ~/.a3s/boxes/<id> home is mode 0700 for root and would leave passt unable to bind its socket, silently breaking all bridge networking and Compose.

pub fn socket_path(&self) -> &Path

Get the passt socket path.

pub fn pcap_path(&self) -> &Path

Get the passt packet capture path.

pub fn spawn( &mut self, ip: Ipv4Addr, gateway: Ipv4Addr, prefix_len: u8, dns_servers: &[Ipv4Addr], port_map: &[String], ) -> Result<()>

Spawn the passt daemon.

Configures passt with:

• Unix socket mode (no PID namespace)
• The assigned IP, gateway, prefix length
• DNS forwarding
• No DHCP (static IP assignment)
• Inbound TCP port forwarding for any published ports (port_map)

pub fn stop(&mut self)

Stop the passt daemon.

pub fn is_running(&mut self) -> bool

Check if the passt process is still running.

Trait Implementations

impl Debug for PasstManager

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drop for PasstManager

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl NetworkBackend for PasstManager

fn socket_path(&self) -> &Path

Path to the Unix socket used to communicate with this backend.

fn stop(&mut self)

Stop the backend and clean up the socket.