73 lines
2.2 KiB
Rust
73 lines
2.2 KiB
Rust
use std::fmt;
|
|
|
|
use log::{debug, error, info};
|
|
use netlink_packet_core::{NetlinkMessage, NetlinkPayload};
|
|
use netlink_packet_route::RouteNetlinkMessage as RtnlMessage;
|
|
|
|
use crate::CloudflareClient;
|
|
|
|
pub struct MessageHandler<'a> {
|
|
cloudflare: &'a mut CloudflareClient,
|
|
errs_counter: usize,
|
|
errs_max: usize,
|
|
}
|
|
|
|
impl<'a> MessageHandler<'a> {
|
|
pub fn new(cloudflare: &'a mut CloudflareClient, errs_max: usize) -> Self {
|
|
Self {
|
|
cloudflare,
|
|
errs_counter: 0,
|
|
errs_max,
|
|
}
|
|
}
|
|
|
|
pub async fn handle_message(&mut self, message: NetlinkMessage<RtnlMessage>) -> Option<()> {
|
|
match message.payload {
|
|
NetlinkPayload::InnerMessage(RtnlMessage::NewAddress(msg)) => {
|
|
self.log_and_check("New IPv4 address", &msg).await
|
|
}
|
|
NetlinkPayload::InnerMessage(RtnlMessage::DelAddress(msg)) => {
|
|
self.log_info("Deleted IPv4 address", &msg).await
|
|
}
|
|
NetlinkPayload::InnerMessage(RtnlMessage::NewLink(link)) => {
|
|
self.log_and_check("New link (interface connected)", &link)
|
|
.await
|
|
}
|
|
NetlinkPayload::InnerMessage(RtnlMessage::DelLink(link)) => {
|
|
self.log_info("Deleted link (interface disconnected)", &link)
|
|
.await
|
|
}
|
|
_ => {
|
|
debug!("Unhandled message payload: {:?}", message.payload);
|
|
Some(())
|
|
}
|
|
}
|
|
}
|
|
|
|
async fn log_and_check<D, M>(&mut self, log_msg: &D, msg: &M) -> Option<()>
|
|
where
|
|
D: fmt::Display + ?Sized,
|
|
M: fmt::Debug,
|
|
{
|
|
info!("{}", log_msg);
|
|
debug!("{}: {:?}", log_msg, msg);
|
|
if let Err(e) = self.cloudflare.check().await {
|
|
self.errs_counter += 1;
|
|
error!(
|
|
"Failed to check cloudflare ({}/{}): {:?}",
|
|
self.errs_counter, self.errs_max, &e
|
|
);
|
|
if self.errs_counter >= self.errs_max {
|
|
return None;
|
|
}
|
|
}
|
|
Some(())
|
|
}
|
|
|
|
async fn log_info<M: fmt::Debug>(&self, log_msg: &str, msg: &M) -> Option<()> {
|
|
info!("{}", log_msg);
|
|
debug!("{:?} message: {:?}", log_msg, msg);
|
|
Some(())
|
|
}
|
|
}
|