From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 15 Aug 2021 23:53:33 +0000 (+0100)
Subject: server: wip recv
X-Git-Tag: hippotat/1.0.0~150
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=hippotat.git;a=commitdiff_plain;h=7acb1784a9324f7ba2c092953d3c489491ab66cf

server: wip recv

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---

diff --git a/src/bin/server.rs b/src/bin/server.rs
index 4900e97..4a80704 100644
--- a/src/bin/server.rs
+++ b/src/bin/server.rs
@@ -48,6 +48,11 @@ struct WebResponse {
 
 type WebResponseData = ();
 
+#[throws(PacketError)]
+pub fn route_packet(packet: Box<[u8]>, daddr: IpAddr) {
+  trace!("xxx discarding packet daddr={:?} len={}", daddr, packet.len());
+}
+
 async fn handle(
   all_clients: Arc<AllClients>,
   req: hyper::Request<hyper::Body>
@@ -338,7 +343,14 @@ async fn run_client(ic: Arc<InstanceConfig>,
             if comp.name != PartName::d {
               warnings.add(&format_args!("unexpected part {:?}", comp.name))?;
             }
-            dbg!(comp.name, DumpHex(comp.payload));
+            checkn(Mime2Slip, mtu, comp.payload, |header| {
+              let saddr = ip_packet_addr::<false>(header)?;
+              if saddr != ic.link.client.0 { throw!(PE::Src(saddr)) }
+              let daddr = ip_packet_addr::<true>(header)?;
+              Ok(daddr)
+            }, |(daddr,packet)| route_packet(daddr,packet),
+               |e| { let _xxx = warnings.add(&e); }
+            )?;
           }
 
           let oi = OutstandingInner {
diff --git a/src/slip.rs b/src/slip.rs
index 2d376a3..955c36f 100644
--- a/src/slip.rs
+++ b/src/slip.rs
@@ -25,6 +25,8 @@ impl SlipMime for Mime2Slip { const CONV_TO: Option<bool> = Some(false); }
 impl SlipMime for SlipNoConv { const CONV_TO: Option<bool> = None; }
 
 #[derive(Debug)]
+#[derive(Error)]
+#[error("only bad IP datagrams")]
 pub struct ErrorOnlyBad;
 
 #[throws(ErrorOnlyBad)]