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use std::{
net::{IpAddr, Ipv4Addr, Ipv6Addr},
path::Path,
sync::{Arc, Mutex},
};
#[cfg(windows)]
#[path = "windows.rs"]
pub mod network_interface;
pub mod tun_provider;
use futures::{channel::oneshot, future::BoxFuture};
use talpid_routing::RouteManagerHandle;
use talpid_types::net::AllowedTunnelTraffic;
use tun_provider::TunProvider;
/// Arguments for creating a tunnel.
pub struct TunnelArgs<'a, L>
where
L: (Fn(TunnelEvent) -> BoxFuture<'static, ()>) + Send + Clone + Sync + 'static,
{
/// Toktio runtime handle.
pub runtime: tokio::runtime::Handle,
/// Resource directory path.
pub resource_dir: &'a Path,
/// Callback function called when an event happens.
pub on_event: L,
/// Receiver oneshot channel for closing the tunnel.
pub tunnel_close_rx: oneshot::Receiver<()>,
/// Mutex to tunnel provider.
pub tun_provider: Arc<Mutex<TunProvider>>,
/// Connection retry attempts.
pub retry_attempt: u32,
/// Route manager handle.
pub route_manager: RouteManagerHandle,
}
/// Information about a VPN tunnel.
#[derive(Debug, Clone, Eq, PartialEq, Hash)]
pub struct TunnelMetadata {
/// The name of the device which the tunnel is running on.
pub interface: String,
/// The local IPs on the tunnel interface.
pub ips: Vec<IpAddr>,
/// The IP to the default gateway on the tunnel interface.
pub ipv4_gateway: Ipv4Addr,
/// The IP to the IPv6 default gateway on the tunnel interface.
pub ipv6_gateway: Option<Ipv6Addr>,
}
/// Possible events from the VPN tunnel and the child process managing it.
#[derive(Debug, Clone, Eq, PartialEq, Hash)]
pub enum TunnelEvent {
/// Sent when the tunnel fails to connect due to an authentication error.
AuthFailed(Option<String>),
/// Sent when the tunnel interface has been created, before routes are set up.
InterfaceUp(TunnelMetadata, AllowedTunnelTraffic),
/// Sent when the tunnel comes up and is ready for traffic.
Up(TunnelMetadata),
/// Sent when the tunnel goes down, but before destroying the tunnel device.
Down,
}
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