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use crate::{Error, Result};
use std::time::Duration;
use tokio::time::sleep;
use futures::TryStreamExt;
use netlink_packet_route::rtnl::IFF_UP;
#[cfg(feature = "link")]
#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
pub enum LinkState {
Up,
Down,
}
#[cfg(feature = "link")]
pub async fn set(link: String, state: LinkState) -> Result<()> {
let (conn, handle, _) = rtnetlink::new_connection()?;
tokio::spawn(conn);
let link = handle
.link()
.get()
.match_name(link.clone())
.execute()
.try_next()
.await?
.ok_or(Error::LinkNotFound(link))?;
let id = link.header.index;
match state {
LinkState::Up => handle.link().set(id).up(),
LinkState::Down => handle.link().set(id).down(),
}
.execute()
.await?;
Ok(())
}
pub async fn is_up(link: String) -> Result<bool> {
let (conn, handle, _) = rtnetlink::new_connection()?;
tokio::spawn(conn);
let link = handle
.link()
.get()
.match_name(link.clone())
.execute()
.try_next()
.await?
.ok_or(Error::LinkNotFound(link))?;
let is_up = link.header.flags & IFF_UP == IFF_UP;
Ok(is_up)
}
#[cfg(feature = "link")]
pub async fn set_mtu(link: String, mtu: u32) -> Result<()> {
let (conn, handle, _) = rtnetlink::new_connection()?;
tokio::spawn(conn);
let link = handle
.link()
.get()
.match_name(link.clone())
.execute()
.try_next()
.await?
.ok_or(Error::LinkNotFound(link))?;
let id = link.header.index;
handle.link().set(id).mtu(mtu).execute().await?;
Ok(())
}
#[cfg(feature = "link")]
pub async fn add_vlan(link: String, parent: String, vlan_id: u16) -> Result<()> {
let (conn, handle, _) = rtnetlink::new_connection()?;
tokio::spawn(conn);
let parent = handle
.link()
.get()
.match_name(parent.clone())
.execute()
.try_next()
.await?
.ok_or(Error::LinkNotFound(parent))?;
let parent_id = parent.header.index;
handle
.link()
.add()
.vlan(link, parent_id, vlan_id)
.execute()
.await?;
Ok(())
}
pub async fn wait_up(link: String) -> Result<()> {
while !exists(link.clone()).await? || !is_up(link.clone()).await? {
sleep(Duration::from_millis(200)).await;
}
Ok(())
}
pub async fn exists(link: String) -> Result<bool> {
let (conn, handle, _) = rtnetlink::new_connection()?;
tokio::spawn(conn);
let exists = handle
.link()
.get()
.match_name(link)
.execute()
.try_next()
.await
.is_ok();
Ok(exists)
}
pub async fn wait_exists(link: String) -> Result<()> {
while !exists(link.clone()).await? {
sleep(Duration::from_millis(200)).await;
}
Ok(())
}
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