+ if ((rv = session_open (app->index, sep, api_context)))
+ return rv;
+
+ return 0;
+}
+
+segment_manager_t *
+application_get_connect_segment_manager (application_t * app)
+{
+ ASSERT (app->connects_seg_manager != (u32) ~ 0);
+ return segment_manager_get (app->connects_seg_manager);
+}
+
+segment_manager_t *
+application_get_listen_segment_manager (application_t * app,
+ stream_session_t * s)
+{
+ uword *smp;
+ smp = hash_get (app->listeners_table, listen_session_get_handle (s));
+ ASSERT (smp != 0);
+ return segment_manager_get (*smp);
+}
+
+int
+application_is_proxy (application_t * app)
+{
+ return (app->flags & APP_OPTIONS_FLAGS_IS_PROXY);
+}
+
+int
+application_is_builtin (application_t * app)
+{
+ return (app->flags & APP_OPTIONS_FLAGS_IS_BUILTIN);
+}
+
+int
+application_is_builtin_proxy (application_t * app)
+{
+ return (application_is_proxy (app) && application_is_builtin (app));
+}
+
+/**
+ * Send an API message to the external app, to map new segment
+ */
+int
+application_add_segment_notify (u32 app_index, ssvm_private_t * fs)
+{
+ application_t *app = application_get (app_index);
+ return app->cb_fns.add_segment_callback (app->api_client_index, fs);
+}
+
+u8
+application_has_local_scope (application_t * app)
+{
+ return app->flags & APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE;
+}
+
+u8
+application_has_global_scope (application_t * app)
+{
+ return app->flags & APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
+}
+
+u32
+application_n_listeners (application_t * app)
+{
+ return hash_elts (app->listeners_table);
+}
+
+stream_session_t *
+application_first_listener (application_t * app, u8 fib_proto,
+ u8 transport_proto)
+{
+ stream_session_t *listener;
+ u64 handle;
+ u32 sm_index;
+ u8 sst;
+
+ sst = session_type_from_proto_and_ip (transport_proto,
+ fib_proto == FIB_PROTOCOL_IP4);
+
+ /* *INDENT-OFF* */
+ hash_foreach (handle, sm_index, app->listeners_table, ({
+ listener = listen_session_get_from_handle (handle);
+ if (listener->session_type == sst
+ && listener->listener_index != SESSION_PROXY_LISTENER_INDEX)
+ return listener;
+ }));
+ /* *INDENT-ON* */
+
+ return 0;
+}
+
+stream_session_t *
+application_proxy_listener (application_t * app, u8 fib_proto,
+ u8 transport_proto)
+{
+ stream_session_t *listener;
+ u64 handle;
+ u32 sm_index;
+ u8 sst;
+
+ sst = session_type_from_proto_and_ip (transport_proto,
+ fib_proto == FIB_PROTOCOL_IP4);
+
+ /* *INDENT-OFF* */
+ hash_foreach (handle, sm_index, app->listeners_table, ({
+ listener = listen_session_get_from_handle (handle);
+ if (listener->session_type == sst
+ && listener->listener_index == SESSION_PROXY_LISTENER_INDEX)
+ return listener;
+ }));
+ /* *INDENT-ON* */
+
+ return 0;
+}
+
+static clib_error_t *
+application_start_stop_proxy_fib_proto (application_t * app, u8 fib_proto,
+ u8 transport_proto, u8 is_start)
+{
+ app_namespace_t *app_ns = app_namespace_get (app->ns_index);
+ u8 is_ip4 = (fib_proto == FIB_PROTOCOL_IP4);
+ session_endpoint_t sep = SESSION_ENDPOINT_NULL;
+ transport_connection_t *tc;
+ stream_session_t *s;
+ u64 handle;
+
+ if (is_start)
+ {
+ s = application_first_listener (app, fib_proto, transport_proto);
+ if (!s)
+ {
+ sep.is_ip4 = is_ip4;
+ sep.fib_index = app_namespace_get_fib_index (app_ns, fib_proto);
+ sep.sw_if_index = app_ns->sw_if_index;
+ sep.transport_proto = transport_proto;
+ application_start_listen (app, &sep, &handle);
+ s = listen_session_get_from_handle (handle);
+ s->listener_index = SESSION_PROXY_LISTENER_INDEX;
+ }
+ }
+ else
+ {
+ s = application_proxy_listener (app, fib_proto, transport_proto);
+ ASSERT (s);
+ }
+
+ tc = listen_session_get_transport (s);
+
+ if (!ip_is_zero (&tc->lcl_ip, 1))