quic: fix quic sessions state updates

Session state cannot be updated after async notification event is
generated for app. Instead, make sure quic sessions that accept new
streams are switched to listening state only on accept.

Type: fix
Fixes: 0242d30

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I9663ccadbea99d555ad49e871f7dff897239dc84

diff --git a/src/plugins/quic/quic.c b/src/plugins/quic/quic.c
index f94a0c8..a728d2a 100644 (file)
--- a/src/plugins/quic/quic.c
+++ b/src/plugins/quic/quic.c
@@ -1045,6 +1045,8 @@ quic_on_stream_open (quicly_stream_open_t * self, quicly_stream_t * stream)
   stream_session->session_type =
     session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
   quic_session = session_get (qctx->c_s_index, qctx->c_thread_index);
+  /* Make sure quic session is in listening state */
+  quic_session->session_state = SESSION_STATE_LISTENING;
   stream_session->listener_handle = listen_session_get_handle (quic_session);
 
   app_wrk = app_worker_get (stream_session->app_wrk_index);
@@ -1058,6 +1060,7 @@ quic_on_stream_open (quicly_stream_open_t * self, quicly_stream_t * stream)
                             SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
                             SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
 
+  stream_session->session_state = SESSION_STATE_ACCEPTING;
   if ((rv = app_worker_accept_notify (app_wrk, stream_session)))
     {
       QUIC_ERR ("failed to notify accept worker app");
@@ -1567,7 +1570,7 @@ format_quic_ctx (u8 * s, va_list * args)
 
   if (!ctx)
     return s;
-  str = format (str, "[#%d][Q] ", ctx->c_thread_index);
+  str = format (str, "[%d:%d][Q] ", ctx->c_thread_index, ctx->c_s_index);
 
   if (quic_ctx_is_listener (ctx))
     str = format (str, "Listener, UDP %ld", ctx->udp_session_handle);
@@ -1685,15 +1688,6 @@ quic_on_quic_session_connected (quic_ctx_t * ctx)
       quic_proto_on_close (ctx_id, thread_index);
       return;
     }
-
-  /*  If the app opens a stream in its callback it may invalidate ctx */
-  ctx = quic_ctx_get (ctx_id, thread_index);
-  /*
-   * app_worker_connect_notify() might have reallocated pool, reload
-   * quic_session pointer
-   */
-  quic_session = session_get (ctx->c_s_index, thread_index);
-  quic_session->session_state = SESSION_STATE_LISTENING;
 }
 
 static void
@@ -2120,7 +2114,6 @@ quic_accept_connection (quic_rx_packet_ctx_t * pctx)
   quic_session = session_alloc (ctx->c_thread_index);
   QUIC_DBG (2, "Allocated quic_session, 0x%lx ctx %u",
            session_handle (quic_session), ctx->c_c_index);
-  quic_session->session_state = SESSION_STATE_LISTENING;
   ctx->c_s_index = quic_session->session_index;
 
   lctx = quic_ctx_get (ctx->listener_ctx_id, 0);
@@ -2146,6 +2139,7 @@ quic_accept_connection (quic_rx_packet_ctx_t * pctx)
     }
 
   app_wrk = app_worker_get (quic_session->app_wrk_index);
+  quic_session->session_state = SESSION_STATE_ACCEPTING;
   if ((rv = app_worker_accept_notify (app_wrk, quic_session)))
     {
       QUIC_ERR ("failed to notify accept worker app");

diff --git a/test/asf/test_quic.py b/test/asf/test_quic.py
index 8179b2f..4f816a3 100644 (file)
--- a/test/asf/test_quic.py
+++ b/test/asf/test_quic.py
@@ -299,6 +299,7 @@ class QUICEchoExtTestCase(QUICTestCase):
 
     def validate_ext_test_results(self):
         server_result = self.worker_server.result
+        self.logger.debug(self.vapi.cli(f"show session verbose 2"))
         client_result = self.worker_client.result
         self.logger.info(f"Server worker result is `{server_result}'")
         self.logger.info(f"Client worker result is `{client_result}'")