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use crate::{Error, Result};
use std::num::NonZeroI32;
use std::thread;
use std::time::Duration;
use futures::TryStreamExt;
use netlink_packet_route::rtnl::IFF_UP;
use rtnetlink::Error::NetlinkError;
use tokio::runtime::Runtime;
#[derive(Clone, Copy, Debug)]
enum State {
Up,
Down,
}
async fn set(link: String, state: State) -> 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 {
State::Up => handle.link().set(id).up(),
State::Down => handle.link().set(id).down(),
}
.execute()
.await?;
Ok(())
}
// pub fn up(link: String) -> Result<()> {
// Runtime::new()?.block_on(set(link, State::Up))
// }
//
// pub fn down(link: String) -> Result<()> {
// Runtime::new()?.block_on(set(link, State::Down))
// }
async fn do_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)
}
// pub fn is_up(link: String) -> Result<bool> {
// Runtime::new()?.block_on(do_is_up(link))
// }
async fn do_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(())
}
// pub fn set_mtu(link: String, mtu: u32) -> Result<()> {
// Runtime::new()?.block_on(do_set_mtu(link, mtu))
// }
async fn do_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 fn add_vlan(link: String, parent: String, vlan_id: u16) -> Result<()> {
// Runtime::new()?.block_on(do_add_vlan(link, parent, vlan_id))
// }
// pub fn wait_up(link: String) -> Result<()> {
// while !match is_up(link.clone()) {
// Ok(v) => v,
// Err(e) => {
// if let Error::LinkNotFound(_) = e {
// false
// } else if let Error::RtNetlink(NetlinkError(ref msg)) = e {
// // Error -19 is "No such device".
// if msg.code == NonZeroI32::new(-19) {
// false
// } else {
// return Err(e);
// }
// } else {
// return Err(e);
// }
// }
// } {
// thread::sleep(Duration::from_secs(1));
// }
//
// Ok(())
// }
async fn do_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 fn exists(link: String) -> Result<bool> {
// Runtime::new()?.block_on(do_exists(link))
// }
//
// pub fn wait_exists(link: String) -> Result<()> {
// while !exists(link.clone())? {
// thread::sleep(Duration::from_secs(1));
// }
//
// Ok(())
// }
async fn do_index(link: String) -> Result<u32> {
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))?;
Ok(link.header.index)
}
// pub fn index(link: String) -> Result<u32> {
// Runtime::new()?.block_on(do_index(link))
// }
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