use super::*;
#[allow(dead_code)] // xxx
-#[throws(PacketError)]
-pub async fn run(_global: &Global,
- _rx: mpsc::Receiver<RoutedPacket>) {
-
+#[allow(unused_variables)] // xxx
+pub async fn run(global: Arc<Global>,
+ mut rx: mpsc::Receiver<RoutedPacket>,
+ mut ipif: Ipif) -> Result<Void,AE> {
+ let r = async {
+ let mut goodness: i32 = 0;
+ const GOODNESS_SHIFT: u8 = 8;
+ const GOODNESS_MIN: i32 = -16;
+
+ loop {
+ select!{
+ biased;
+
+ data = rx.recv() =>
+ {
+ let data = data.ok_or_else(|| anyhow!("rx stream end!"))?;
+ let mut data = &*data.data;
+ let mut slip_end = &[SLIP_END][..];
+ let mut buf = Buf::chain(&mut data, &mut slip_end);
+ ipif.rx.write_all_buf(&mut buf).await
+ .context("write to ipif")?;
+ },
+
+ data = Ipif::next_frame(&mut ipif.tx) =>
+ {
+ let data = data?;
+ let may_route = MayRoute::came_from_outside_hippotatd();
+
+ goodness -= goodness >> GOODNESS_SHIFT;
+
+ match process1(SlipNoConv, global.config.mtu, &data, |header|{
+ let saddr = ip_packet_addr::<false>(header)?;
+ let daddr = ip_packet_addr::<true>(header)?;
+ Ok((saddr,daddr))
+ }) {
+ Err(PE::Empty) => { },
+
+ Err(pe) => {
+ goodness -= 1;
+ error!("[good={}] invalid data from local tx ipif {}",
+ goodness, pe);
+ if goodness < GOODNESS_MIN {
+ throw!(anyhow!("too many bad packets, too few good ones!"))
+ }
+ },
+
+ Ok((ref data, (ref saddr, ref daddr)))
+ if ! global.config.vnetwork.iter().any(|n| n.contains(saddr)) => {
+ // pretent as if this came from route
+ trace!(
+ target: "hippotatd",
+ "discard to={:?} came=ipif user=local len={} outside-vnets: from={:?}",
+ daddr, saddr, data.len());
+ },
+
+ Ok((data, (saddr, daddr))) => {
+ goodness += 1;
+ route_packet(
+ &global, "ipif", None,
+ data, daddr, may_route.clone()
+ ).await;
+ }
+ }
+ },
+ }
+ }
+ }.await;
+
+ ipif.quitting(None).await;
+ r
}