vcl: wait for segments with segment handle
[vpp.git] / src / vnet / session / application_interface.c
index 6c517e8..d254b9b 100644 (file)
@@ -81,6 +81,13 @@ const char test_srv_key_rsa[] =
   "oEjPLVNtx8SOj/M4rhaPT3I=\r\n" "-----END PRIVATE KEY-----\r\n";
 const u32 test_srv_key_rsa_len = sizeof (test_srv_key_rsa);
 
+#define app_interface_check_thread_and_barrier(_fn, _arg)              \
+  if (PREDICT_FALSE (!vlib_thread_is_main_w_barrier ()))               \
+    {                                                                  \
+      vlib_rpc_call_main_thread (_fn, (u8 *) _arg, sizeof(*_arg));     \
+      return 0;                                                                \
+    }
+
 static u8
 session_endpoint_is_local (session_endpoint_t * sep)
 {
@@ -118,10 +125,10 @@ api_parse_session_handle (u64 handle, u32 * session_index, u32 * thread_index)
   *thread_index = handle & 0xFFFFFFFF;
   *session_index = handle >> 32;
 
-  if (*thread_index >= vec_len (smm->sessions))
+  if (*thread_index >= vec_len (smm->wrk))
     return VNET_API_ERROR_INVALID_VALUE;
 
-  pool = smm->sessions[*thread_index];
+  pool = smm->wrk[*thread_index].sessions;
 
   if (pool_is_free_index (pool, *session_index))
     return VNET_API_ERROR_INVALID_VALUE_2;
@@ -130,11 +137,11 @@ api_parse_session_handle (u64 handle, u32 * session_index, u32 * thread_index)
 }
 
 static void
-session_endpoint_update_for_app (session_endpoint_extended_t * sep,
-                                application_t * app)
+session_endpoint_update_for_app (session_endpoint_cfg_t * sep,
+                                application_t * app, u8 is_connect)
 {
   app_namespace_t *app_ns;
-  u32 ns_index;
+  u32 ns_index, fib_index;
 
   ns_index = app->ns_index;
 
@@ -149,15 +156,34 @@ session_endpoint_update_for_app (session_endpoint_extended_t * sep,
       ns_index = owner_app->ns_index;
     }
   app_ns = app_namespace_get (ns_index);
-  if (app_ns)
+  if (!app_ns)
+    return;
+
+  /* Ask transport and network to bind to/connect using local interface
+   * that "supports" app's namespace. This will fix our local connection
+   * endpoint.
+   */
+
+  /* If in default namespace and user requested a fib index use it */
+  if (ns_index == 0 && sep->fib_index != ENDPOINT_INVALID_INDEX)
+    fib_index = sep->fib_index;
+  else
+    fib_index = sep->is_ip4 ? app_ns->ip4_fib_index : app_ns->ip6_fib_index;
+  sep->peer.fib_index = fib_index;
+  sep->fib_index = fib_index;
+
+  if (!is_connect)
     {
-      /* Ask transport and network to bind to/connect using local interface
-       * that "supports" app's namespace. This will fix our local connection
-       * endpoint.
-       */
       sep->sw_if_index = app_ns->sw_if_index;
-      sep->fib_index =
-       sep->is_ip4 ? app_ns->ip4_fib_index : app_ns->ip6_fib_index;
+    }
+  else
+    {
+      if (app_ns->sw_if_index != APP_NAMESPACE_INVALID_INDEX
+         && sep->peer.sw_if_index != ENDPOINT_INVALID_INDEX
+         && sep->peer.sw_if_index != app_ns->sw_if_index)
+       clib_warning ("Local sw_if_index different from app ns sw_if_index");
+
+      sep->peer.sw_if_index = app_ns->sw_if_index;
     }
 }
 
@@ -178,7 +204,7 @@ vnet_bind_inline (vnet_bind_args_t * a)
   app_wrk = application_get_worker (app, a->wrk_map_index);
   a->sep_ext.app_wrk_index = app_wrk->wrk_index;
 
-  session_endpoint_update_for_app (&a->sep_ext, app);
+  session_endpoint_update_for_app (&a->sep_ext, app, 0 /* is_connect */ );
   if (!session_endpoint_in_ns (&a->sep))
     return VNET_API_ERROR_INVALID_VALUE_2;
 
@@ -271,7 +297,7 @@ application_connect (vnet_connect_args_t * a)
     return VNET_API_ERROR_INVALID_VALUE;
 
   client = application_get (a->app_index);
-  session_endpoint_update_for_app (&a->sep_ext, client);
+  session_endpoint_update_for_app (&a->sep_ext, client, 1 /* is_connect */ );
   client_wrk = application_get_worker (client, a->wrk_map_index);
 
   /*
@@ -361,8 +387,7 @@ global_scope:
 uword
 unformat_vnet_uri (unformat_input_t * input, va_list * args)
 {
-  session_endpoint_extended_t *sep = va_arg (*args,
-                                            session_endpoint_extended_t *);
+  session_endpoint_cfg_t *sep = va_arg (*args, session_endpoint_cfg_t *);
   u32 transport_proto = 0, port;
 
   if (unformat (input, "%U://%U/%d", unformat_transport_proto,
@@ -404,10 +429,10 @@ unformat_vnet_uri (unformat_input_t * input, va_list * args)
 }
 
 static u8 *cache_uri;
-static session_endpoint_extended_t *cache_sep;
+static session_endpoint_cfg_t *cache_sep;
 
 int
-parse_uri (char *uri, session_endpoint_extended_t * sep)
+parse_uri (char *uri, session_endpoint_cfg_t * sep)
 {
   unformat_input_t _input, *input = &_input;
 
@@ -461,6 +486,19 @@ app_validate_namespace (u8 * namespace_id, u64 secret, u32 * app_ns_index)
   return 0;
 }
 
+static u8 *
+app_name_from_api_index (u32 api_client_index)
+{
+  vl_api_registration_t *regp;
+  regp = vl_api_client_index_to_registration (api_client_index);
+  if (regp)
+    return format (0, "%s%c", regp->name, 0);
+
+  clib_warning ("api client index %u does not have an api registration!",
+               api_client_index);
+  return format (0, "unknown%c", 0);
+}
+
 /**
  * Attach application to vpp
  *
@@ -476,6 +514,7 @@ vnet_application_attach (vnet_app_attach_args_t * a)
   app_worker_t *app_wrk;
   segment_manager_t *sm;
   u32 app_ns_index = 0;
+  u8 *app_name = 0;
   u64 secret;
   int rv;
 
@@ -491,6 +530,12 @@ vnet_application_attach (vnet_app_attach_args_t * a)
     return clib_error_return_code (0, VNET_API_ERROR_APP_ALREADY_ATTACHED, 0,
                                   "app already attached");
 
+  if (a->api_client_index != APP_INVALID_INDEX)
+    {
+      app_name = app_name_from_api_index (a->api_client_index);
+      a->name = app_name;
+    }
+
   secret = a->options[APP_OPTIONS_NAMESPACE_SECRET];
   if ((rv = app_validate_namespace (a->namespace_id, secret, &app_ns_index)))
     return clib_error_return_code (0, rv, 0, "namespace validation: %d", rv);
@@ -504,6 +549,7 @@ vnet_application_attach (vnet_app_attach_args_t * a)
     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);
 
@@ -512,9 +558,10 @@ vnet_application_attach (vnet_app_attach_args_t * a)
 
   ASSERT (vec_len (fs->ssvm.name) <= 128);
   a->segment = &fs->ssvm;
+  a->segment_handle = segment_manager_segment_handle (sm, fs);
 
   segment_manager_segment_reader_unlock (sm);
-
+  vec_free (app_name);
   return 0;
 }
 
@@ -525,27 +572,29 @@ int
 vnet_application_detach (vnet_app_detach_args_t * a)
 {
   application_t *app;
-  app = application_get_if_valid (a->app_index);
 
+  app = application_get_if_valid (a->app_index);
   if (!app)
     {
       clib_warning ("app not attached");
       return VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
     }
 
-  application_free (app);
+  app_interface_check_thread_and_barrier (vnet_application_detach, a);
+  application_detach_process (app, a->api_client_index);
   return 0;
 }
 
 int
 vnet_bind_uri (vnet_bind_args_t * a)
 {
-  session_endpoint_extended_t sep = SESSION_ENDPOINT_EXT_NULL;
+  session_endpoint_cfg_t sep = SESSION_ENDPOINT_CFG_NULL;
   int rv;
 
   rv = parse_uri (a->uri, &sep);
   if (rv)
     return rv;
+  sep.app_wrk_index = 0;
   clib_memcpy (&a->sep_ext, &sep, sizeof (sep));
   return vnet_bind_inline (a);
 }
@@ -553,7 +602,7 @@ vnet_bind_uri (vnet_bind_args_t * a)
 int
 vnet_unbind_uri (vnet_unbind_args_t * a)
 {
-  session_endpoint_extended_t sep = SESSION_ENDPOINT_EXT_NULL;
+  session_endpoint_cfg_t sep = SESSION_ENDPOINT_CFG_NULL;
   stream_session_t *listener;
   u32 table_index;
   int rv;
@@ -576,7 +625,7 @@ vnet_unbind_uri (vnet_unbind_args_t * a)
 clib_error_t *
 vnet_connect_uri (vnet_connect_args_t * a)
 {
-  session_endpoint_extended_t sep = SESSION_ENDPOINT_EXT_NULL;
+  session_endpoint_cfg_t sep = SESSION_ENDPOINT_CFG_NULL;
   int rv;
 
   /* Parse uri */
@@ -598,12 +647,7 @@ vnet_disconnect_session (vnet_disconnect_args_t * a)
       local_session_t *ls;
 
       /* Disconnect reply came to worker 1 not main thread */
-      if (vlib_get_thread_index () == 1)
-       {
-         vlib_rpc_call_main_thread (vnet_disconnect_session, (u8 *) a,
-                                    sizeof (*a));
-         return 0;
-       }
+      app_interface_check_thread_and_barrier (vnet_disconnect_session, a);
 
       if (!(ls = application_get_local_session_from_handle (a->handle)))
        return 0;
@@ -612,9 +656,14 @@ vnet_disconnect_session (vnet_disconnect_args_t * a)
     }
   else
     {
+      app_worker_t *app_wrk;
       stream_session_t *s;
+
       s = session_get_from_handle_if_valid (a->handle);
-      if (!s || s->app_wrk_index != a->app_index)
+      if (!s)
+       return VNET_API_ERROR_INVALID_VALUE;
+      app_wrk = app_worker_get (s->app_wrk_index);
+      if (app_wrk->app_index != a->app_index)
        return VNET_API_ERROR_INVALID_VALUE;
 
       /* We're peeking into another's thread pool. Make sure */