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// SPDX-License-Identifier: MIT
#![cfg(feature = "tokio_socket")]
use futures::stream::TryStreamExt;
use rtnetlink::{new_connection, Error, Handle};
use std::env;
#[tokio::main]
async fn main() -> Result<(), String> {
let args: Vec<String> = env::args().collect();
if args.len() != 2 {
usage();
return Ok(());
}
let link_name = &args[1];
let (connection, handle, _) = new_connection().unwrap();
tokio::spawn(connection);
create_macvtap(handle, link_name.to_string())
.await
.map_err(|e| format!("{e}"))
}
async fn create_macvtap(
handle: Handle,
veth_name: String,
) -> Result<(), Error> {
let mut links = handle.link().get().match_name(veth_name.clone()).execute();
if let Some(link) = links.try_next().await? {
// hard code mode: 4u32 i.e bridge mode
let request = handle.link().add().macvtap(
"test_macvtap".into(),
link.header.index,
4u32,
);
request.execute().await?
} else {
println!("no link link {veth_name} found");
}
Ok(())
}
fn usage() {
eprintln!(
"usage:
cargo run --example create_macvtap -- <link name>
Note that you need to run this program as root. Instead of running cargo as root,
build the example normally:
cd rtnetlink; cargo build --example create_macvtap
Then find the binary in the target directory:
cd ../target/debug/example ; sudo ./create_macvtap <link_name>"
);
}
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