tls: Add C API for TLS openssl to set engine

[vpp.git] / src / plugins / tlsopenssl / tls_async.c

diff --git a/src/plugins/tlsopenssl/tls_async.c b/src/plugins/tlsopenssl/tls_async.c
index 50124a6..e577f34 100644 (file)
--- a/src/plugins/tlsopenssl/tls_async.c
+++ b/src/plugins/tlsopenssl/tls_async.c
@@ -142,7 +142,8 @@ openssl_engine_register (char *engine_name, char *algorithm)
     }
   if (registered < 0)
     {
-      return 0;
+      clib_error ("engine %s is not regisered in VPP", engine_name);
+      return -1;
     }
 
   ENGINE_load_builtin_engines ();
@@ -151,7 +152,8 @@ openssl_engine_register (char *engine_name, char *algorithm)
 
   if (engine == NULL)
     {
-      return 0;
+      clib_warning ("Failed to find engine ENGINE_by_id %s", engine_name);
+      return -1;
     }
 
   om->engine = engine;
@@ -166,7 +168,7 @@ openssl_engine_register (char *engine_name, char *algorithm)
        {
          clib_warning ("Failed to set engine %s algorithm %s\n",
                        engine_name, algorithm);
-         return 0;
+         return -1;
        }
     }
   else
@@ -175,13 +177,13 @@ openssl_engine_register (char *engine_name, char *algorithm)
        {
          clib_warning ("Failed to set engine %s to all algorithm",
                        engine_name);
-         return 0;
+         return -1;
        }
     }
 
   om->start_polling = 1;
 
-  return 1;
+  return 0;
 
 }
 
@@ -245,7 +247,7 @@ openssl_evt_alloc (void)
 }
 
 int
-openssl_async_run (void *evt)
+tls_async_openssl_callback (SSL * s, void *evt)
 {
   openssl_evt_t *event, *event_tail;
   openssl_async_t *om = &openssl_async_main;
@@ -299,7 +301,7 @@ vpp_add_async_pending_event (tls_ctx_t * ctx,
   event->handler = handler;
   event->cb_args.event_index = eidx;
   event->cb_args.thread_index = thread_id;
-  event->engine_callback.callback = openssl_async_run;
+  event->engine_callback.callback = tls_async_openssl_callback;
   event->engine_callback.arg = &event->cb_args;
 
   /* add to pending list */
@@ -326,11 +328,11 @@ vpp_add_async_run_event (tls_ctx_t * ctx, openssl_resume_handler * handler)
   event->handler = handler;
   event->cb_args.event_index = eidx;
   event->cb_args.thread_index = thread_id;
-  event->engine_callback.callback = openssl_async_run;
+  event->engine_callback.callback = tls_async_openssl_callback;
   event->engine_callback.arg = &event->cb_args;
 
   /* This is a retry event, and need to put to ring to make it run again */
-  return openssl_async_run (&event->cb_args);
+  return tls_async_openssl_callback (NULL, &event->cb_args);
 
 }
 
@@ -340,7 +342,7 @@ event_handler (void *tls_async)
 
   openssl_resume_handler *handler;
   openssl_evt_t *callback;
-  stream_session_t *tls_session;
+  session_t *tls_session;
   int thread_index;
   tls_ctx_t *ctx;
 
@@ -365,26 +367,10 @@ event_handler (void *tls_async)
 void
 dasync_polling ()
 {
-  openssl_async_t *om = &openssl_async_main;
-  openssl_evt_t *event;
-  int *evt_pending;
-  openssl_tls_callback_t *engine_cb;
-  u8 thread_index = vlib_get_thread_index ();
-
-  /* POC code here to simulate the engine to call callback */
-  evt_pending = &om->status[thread_index].evt_pending_head;
-  while (*evt_pending >= 0)
-    {
-      TLS_DBG (2, "polling... current head = %d\n", *evt_pending);
-      event = openssl_evt_get_w_thread (*evt_pending, thread_index);
-      *evt_pending = event->next;
-      if (event->status == SSL_ASYNC_PENDING)
-       {
-         engine_cb = &event->engine_callback;
-         (*engine_cb->callback) (engine_cb->arg);
-       }
-    }
-
+/* dasync is a fake async device, and could not be polled.
+ * We have added code in the dasync engine to triggered the callback already,
+ * so nothing can be done here
+ */
 }
 
 void