session: cleanup use of api_client_index

Change-Id: I8a680be62ab91d2ccb144641981a635506973a49
Signed-off-by: Florin Coras <fcoras@cisco.com>
diff --git a/src/vnet/session/application_interface.c b/src/vnet/session/application_interface.c
index 3cd8c2f..2a09909 100644
--- a/src/vnet/session/application_interface.c
+++ b/src/vnet/session/application_interface.c
@@ -496,11 +496,21 @@
   app_worker_t *app_wrk;
   segment_manager_t *sm;
   u32 app_ns_index = 0;
+  u8 *app_name = 0;
   u64 secret;
   int rv;
 
   if (a->api_client_index != APP_INVALID_INDEX)
-    app = application_lookup (a->api_client_index);
+    {
+      app = application_lookup (a->api_client_index);
+      if (!app)
+	{
+	  vl_api_registration_t *regp;
+	  regp = vl_api_client_index_to_registration (a->api_client_index);
+	  app_name = format (0, "%s%c", regp->name, 0);
+	  a->name = app_name;
+	}
+    }
   else if (a->name)
     app = application_lookup_name (a->name);
   else
@@ -524,6 +534,7 @@
     return clib_error_return_code (0, rv, 0, "app default wrk init: %d", rv);
 
   a->app_evt_q = app_wrk->event_queue;
+  app_wrk->api_client_index = a->api_client_index;
   sm = segment_manager_get (app_wrk->first_segment_manager);
   fs = segment_manager_get_segment_w_lock (sm, 0);
 
@@ -534,7 +545,7 @@
   a->segment = &fs->ssvm;
 
   segment_manager_segment_reader_unlock (sm);
-
+  vec_free (app_name);
   return 0;
 }