session: support half-close connection

[vpp.git] / src / vnet / session / session.h

diff --git a/src/vnet/session/session.h b/src/vnet/session/session.h
index a05ecb4..17a870d 100644 (file)
--- a/src/vnet/session/session.h
+++ b/src/vnet/session/session.h
@@ -331,8 +331,7 @@ int session_wrk_handle_mq (session_worker_t *wrk, svm_msg_q_t *mq);
 session_t *session_alloc (u32 thread_index);
 void session_free (session_t * s);
 void session_free_w_fifos (session_t * s);
-void session_cleanup_half_open (transport_proto_t tp,
-                               session_handle_t ho_handle);
+void session_cleanup_half_open (session_handle_t ho_handle);
 u8 session_is_valid (u32 si, u8 thread_index);
 
 always_inline session_t *
@@ -456,8 +455,10 @@ session_clone_safe (u32 session_index, u32 thread_index)
 int session_open (u32 app_index, session_endpoint_t * tep, u32 opaque);
 int session_listen (session_t * s, session_endpoint_cfg_t * sep);
 int session_stop_listen (session_t * s);
+void session_half_close (session_t *s);
 void session_close (session_t * s);
 void session_reset (session_t * s);
+void session_transport_half_close (session_t *s);
 void session_transport_close (session_t * s);
 void session_transport_reset (session_t * s);
 void session_transport_cleanup (session_t * s);
@@ -477,6 +478,8 @@ void sesssion_reschedule_tx (transport_connection_t * tc);
 transport_connection_t *session_get_transport (session_t * s);
 void session_get_endpoint (session_t * s, transport_endpoint_t * tep,
                           u8 is_lcl);
+int session_transport_attribute (session_t *s, u8 is_get,
+                                transport_endpt_attr_t *attr);
 
 u8 *format_session (u8 * s, va_list * args);
 uword unformat_session (unformat_input_t * input, va_list * args);
@@ -502,8 +505,7 @@ int session_dgram_connect_notify (transport_connection_t * tc,
 int session_stream_accept_notify (transport_connection_t * tc);
 void session_transport_closing_notify (transport_connection_t * tc);
 void session_transport_delete_notify (transport_connection_t * tc);
-void session_half_open_delete_notify (transport_proto_t tp,
-                                     session_handle_t ho_handle);
+void session_half_open_delete_notify (transport_connection_t *tc);
 void session_transport_closed_notify (transport_connection_t * tc);
 void session_transport_reset_notify (transport_connection_t * tc);
 int session_stream_accept (transport_connection_t * tc, u32 listener_index,
@@ -572,6 +574,13 @@ transport_rx_fifo_has_ooo_data (transport_connection_t * tc)
   return svm_fifo_has_ooo_data (s->rx_fifo);
 }
 
+always_inline void
+transport_rx_fifo_req_deq_ntf (transport_connection_t *tc)
+{
+  session_t *s = session_get (tc->s_index, tc->thread_index);
+  svm_fifo_add_want_deq_ntf (s->rx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
+}
+
 always_inline clib_time_type_t
 transport_time_now (u32 thread_index)
 {
@@ -647,6 +656,30 @@ listen_session_free (session_t * s)
   session_free (s);
 }
 
+always_inline session_t *
+ho_session_alloc (void)
+{
+  session_t *s;
+  ASSERT (vlib_get_thread_index () == 0);
+  s = session_alloc (0);
+  s->session_state = SESSION_STATE_CONNECTING;
+  s->flags |= SESSION_F_HALF_OPEN;
+  return s;
+}
+
+always_inline session_t *
+ho_session_get (u32 ho_index)
+{
+  return session_get (ho_index, 0 /* half-open thread */);
+}
+
+always_inline void
+ho_session_free (session_t *s)
+{
+  ASSERT (!s->rx_fifo && s->thread_index == 0);
+  session_free (s);
+}
+
 transport_connection_t *listen_session_get_transport (session_t * s);
 
 /*