Revert "Expose the Handshake Confirmed state"

quinn-proto/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "quinn-proto"
-version = "0.11.5"
+version = "0.11.6"
 edition.workspace = true
 rust-version.workspace = true
 license.workspace = true

quinn-proto/src/connection/mod.rs

@@ -2460,9 +2460,6 @@ impl Connection {
                 }
 
                 self.events.push_back(Event::Connected);
-                if self.side.is_server() {
-                    self.events.push_back(Event::HandshakeConfirmed);
-                }
                 self.state = State::Established;
                 trace!("established");
                 Ok(())
@@ -2872,7 +2869,6 @@ impl Connection {
                         ));
                     }
                     if self.spaces[SpaceId::Handshake].crypto.is_some() {
-                        self.events.push_back(Event::HandshakeConfirmed);
                         self.discard_space(now, SpaceId::Handshake);
                     }
                 }
@@ -3715,8 +3711,6 @@ pub enum Event {
     HandshakeDataReady,
     /// The connection was successfully established
     Connected,
-    /// The handshake was [`confirmed`](https://www.rfc-editor.org/rfc/rfc9001#name-handshake-confirmed)
-    HandshakeConfirmed,
     /// The connection was lost
     ///
     /// Emitted if the peer closes the connection or an error is encountered.

quinn-proto/src/tests/mod.rs

@@ -586,10 +586,6 @@ fn zero_rtt_happypath() {
         pair.server_conn_mut(server_ch).poll(),
         Some(Event::Connected)
     );
-    assert_matches!(
-        pair.server_conn_mut(server_ch).poll(),
-        Some(Event::HandshakeConfirmed)
-    );
     assert_matches!(
         pair.server_conn_mut(server_ch).poll(),
         Some(Event::Stream(StreamEvent::Opened { dir: Dir::Uni }))
@@ -628,10 +624,6 @@ fn zero_rtt_rejection() {
         pair.server_conn_mut(server_ch).poll(),
         Some(Event::Connected)
     );
-    assert_matches!(
-        pair.server_conn_mut(server_ch).poll(),
-        Some(Event::HandshakeConfirmed)
-    );
     assert_matches!(pair.server_conn_mut(server_ch).poll(), None);
     pair.client
         .connections
@@ -673,10 +665,6 @@ fn zero_rtt_rejection() {
         pair.server_conn_mut(server_ch).poll(),
         Some(Event::Connected)
     );
-    assert_matches!(
-        pair.server_conn_mut(server_ch).poll(),
-        Some(Event::HandshakeConfirmed)
-    );
     assert_matches!(pair.server_conn_mut(server_ch).poll(), None);
     let s2 = pair.client_streams(client_ch).open(Dir::Uni).unwrap();
     assert_eq!(s, s2);
@@ -754,10 +742,6 @@ fn test_zero_rtt_incoming_limit<F: FnOnce(&mut ServerConfig)>(configure_server:
         pair.server_conn_mut(server_ch).poll(),
         Some(Event::Connected)
     );
-    assert_matches!(
-        pair.server_conn_mut(server_ch).poll(),
-        Some(Event::HandshakeConfirmed)
-    );
     assert_matches!(
         pair.server_conn_mut(server_ch).poll(),
         Some(Event::Stream(StreamEvent::Opened { dir: Dir::Uni }))

quinn-proto/src/tests/util.rs

@@ -227,10 +227,6 @@ impl Pair {
             self.client_conn_mut(client_ch).poll(),
             Some(Event::Connected { .. })
         );
-        assert_matches!(
-            self.client_conn_mut(client_ch).poll(),
-            Some(Event::HandshakeConfirmed)
-        );
         assert_matches!(
             self.server_conn_mut(server_ch).poll(),
             Some(Event::HandshakeDataReady)
@@ -239,10 +235,6 @@ impl Pair {
             self.server_conn_mut(server_ch).poll(),
             Some(Event::Connected { .. })
         );
-        assert_matches!(
-            self.server_conn_mut(server_ch).poll(),
-            Some(Event::HandshakeConfirmed)
-        );
     }
 
     pub(super) fn client_conn_mut(&mut self, ch: ConnectionHandle) -> &mut Connection {

quinn/src/connection.rs

@@ -349,22 +349,6 @@ impl Connection {
         }
     }
 
-    /// Wait for the connection to enter the [`Handshake
-    /// Confirmed`](https://www.rfc-editor.org/rfc/rfc9001#name-handshake-confirmed) state
-    ///
-    /// For servers, this is the same as the time the connection becomes established. For clients,
-    /// this is the earliest time at which a client can know that the server has accepted client
-    /// authentication, typically one round-trip after the connection becomes established.
-    pub async fn handshake_confirmed(&self) -> Result<(), ConnectionError> {
-        self.0.shared.handshake_confirmed.notified().await;
-        self.0
-            .state
-            .lock("handshake_confirmed")
-            .error
-            .as_ref()
-            .map_or(Ok(()), |err| Err(err.clone()))
-    }
-
     /// Wait for the connection to be closed for any reason
     ///
     /// Despite the return type's name, closed connections are often not an error condition at the
@@ -571,8 +555,7 @@ impl Connection {
         self.0.stable_id()
     }
 
-    // Update traffic keys spontaneously for testing purposes. Must not be called before the
-    // handshake is confirmed.
+    // Update traffic keys spontaneously for testing purposes.
     #[doc(hidden)]
     pub fn force_key_update(&self) {
         self.0
@@ -944,7 +927,6 @@ pub(crate) struct Shared {
     datagram_received: Notify,
     datagrams_unblocked: Notify,
     closed: Notify,
-    handshake_confirmed: Notify,
 }
 
 pub(crate) struct State {
@@ -1102,9 +1084,6 @@ impl State {
                         wake_all(&mut self.stopped);
                     }
                 }
-                HandshakeConfirmed => {
-                    shared.handshake_confirmed.notify_waiters();
-                }
                 ConnectionLost { reason } => {
                     self.terminate(reason, shared);
                 }
@@ -1206,7 +1185,6 @@ impl State {
         shared.stream_incoming[Dir::Bi as usize].notify_waiters();
         shared.datagram_received.notify_waiters();
         shared.datagrams_unblocked.notify_waiters();
-        shared.handshake_confirmed.notify_waiters();
         if let Some(x) = self.on_connected.take() {
             let _ = x.send(false);
         }