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// SPDX-License-Identifier: MIT
#![cfg(feature = "tokio_socket")]
use futures::stream::StreamExt;
use netlink_sys::{AsyncSocket, SocketAddr};
use rtnetlink::new_connection;
const RTNLGRP_LINK: u32 = 1;
const RTNLGRP_NEIGH: u32 = 3;
const RTNLGRP_IPV4_IFADDR: u32 = 5;
const RTNLGRP_IPV4_MROUTE: u32 = 6;
const RTNLGRP_IPV4_ROUTE: u32 = 7;
const RTNLGRP_IPV4_RULE: u32 = 8;
const RTNLGRP_IPV6_IFADDR: u32 = 9;
const RTNLGRP_IPV6_MROUTE: u32 = 10;
const RTNLGRP_IPV6_ROUTE: u32 = 11;
const RTNLGRP_IPV6_RULE: u32 = 19;
const RTNLGRP_IPV4_NETCONF: u32 = 24;
const RTNLGRP_IPV6_NETCONF: u32 = 25;
const RTNLGRP_MPLS_ROUTE: u32 = 27;
const RTNLGRP_NSID: u32 = 28;
const RTNLGRP_MPLS_NETCONF: u32 = 29;
const fn nl_mgrp(group: u32) -> u32 {
if group > 31 {
panic!("use netlink_sys::Socket::add_membership() for this group");
}
if group == 0 {
0
} else {
1 << (group - 1)
}
}
#[tokio::main]
async fn main() -> Result<(), String> {
// conn - `Connection` that has a netlink socket which is a `Future` that
// polls the socket and thus must have an event loop
//
// handle - `Handle` to the `Connection`. Used to send/recv netlink
// messages.
//
// messages - A channel receiver.
let (mut conn, mut _handle, mut messages) =
new_connection().map_err(|e| format!("{e}"))?;
// These flags specify what kinds of broadcast messages we want to listen
// for.
let groups = nl_mgrp(RTNLGRP_LINK)
| nl_mgrp(RTNLGRP_IPV4_IFADDR)
| nl_mgrp(RTNLGRP_IPV6_IFADDR)
| nl_mgrp(RTNLGRP_IPV4_ROUTE)
| nl_mgrp(RTNLGRP_IPV6_ROUTE)
| nl_mgrp(RTNLGRP_MPLS_ROUTE)
| nl_mgrp(RTNLGRP_IPV4_MROUTE)
| nl_mgrp(RTNLGRP_IPV6_MROUTE)
| nl_mgrp(RTNLGRP_NEIGH)
| nl_mgrp(RTNLGRP_IPV4_NETCONF)
| nl_mgrp(RTNLGRP_IPV6_NETCONF)
| nl_mgrp(RTNLGRP_IPV4_RULE)
| nl_mgrp(RTNLGRP_IPV6_RULE)
| nl_mgrp(RTNLGRP_NSID)
| nl_mgrp(RTNLGRP_MPLS_NETCONF);
let addr = SocketAddr::new(0, groups);
conn.socket_mut()
.socket_mut()
.bind(&addr)
.expect("Failed to bind");
// Spawn `Connection` to start polling netlink socket.
tokio::spawn(conn);
// Use `Handle` to send request to kernel to start multicasting rtnetlink
// events.
tokio::spawn(async move {
// Create message to enable
});
// Start receiving events through `messages` channel.
while let Some((message, _)) = messages.next().await {
let payload = message.payload;
println!("{payload:?}");
}
Ok(())
}
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