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Add file descriptor and MTU to CLI arguments

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B. Blechschmidt 2023-04-13 21:54:02 +02:00
parent 500f6ef21f
commit fb3ad33b53
1 changed files with 16 additions and 1 deletions
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17
src/main.rs
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@ -19,6 +19,14 @@ struct Args {
#[arg(short, long, value_name = "name", default_value = "tun0")] #[arg(short, long, value_name = "name", default_value = "tun0")]
tun: String, tun: String,
/// File descriptor of the tun interface
#[arg(long, value_name = "fd")]
tun_fd: Option<i32>,
/// MTU of the tun interface (only with tunnel file descriptor)
#[arg(long, value_name = "mtu", default_value = "1500")]
tun_mtu: usize,
/// Proxy URL in the form proto://[username[:password]@]host:port /// Proxy URL in the form proto://[username[:password]@]host:port
#[arg(short, long, value_parser = Proxy::from_url, value_name = "URL")] #[arg(short, long, value_parser = Proxy::from_url, value_name = "URL")]
proxy: Proxy, proxy: Proxy,
@ -67,6 +75,14 @@ fn main() -> ExitCode {
options = options.with_virtual_dns(); options = options.with_virtual_dns();
} }
let interface = match args.tun_fd {
None => NetworkInterface::Named(args.tun.clone()),
Some(fd) => {
options = options.with_mtu(args.tun_mtu);
NetworkInterface::Fd(fd)
}
};
if let Err(e) = (|| -> Result<(), Error> { if let Err(e) = (|| -> Result<(), Error> {
#[cfg(target_os = "linux")] #[cfg(target_os = "linux")]
{ {
@ -89,7 +105,6 @@ fn main() -> ExitCode {
} }
} }
let interface = NetworkInterface::Named(args.tun);
main_entry(&interface, &args.proxy, options)?; main_entry(&interface, &args.proxy, options)?;
Ok(()) Ok(())