X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fsession%2Fapplication_interface.c;h=d254b9bb55a3acf6c4cdd2f1464e53918783177b;hb=d85de68ec;hp=2e6313630161731f90c4c2ac301948651c7a3d6c;hpb=c3638fece1a3b96349b7df11261e6661b101ccbe;p=vpp.git

diff --git a/src/vnet/session/application_interface.c b/src/vnet/session/application_interface.c
index 2e631363016..d254b9bb55a 100644
--- a/src/vnet/session/application_interface.c
+++ b/src/vnet/session/application_interface.c
@@ -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;
@@ -130,28 +137,60 @@ api_parse_session_handle (u64 handle, u32 * session_index, u32 * thread_index)
 }
 
 static void
-session_endpoint_update_for_app (session_endpoint_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;
-  app_ns = app_namespace_get (app->ns_index);
-  if (app_ns)
+  u32 ns_index, fib_index;
+
+  ns_index = app->ns_index;
+
+  /* App is a transport proto, so fetch the calling app's ns */
+  if (app->flags & APP_OPTIONS_FLAGS_IS_TRANSPORT_APP)
+    {
+      app_worker_t *owner_wrk;
+      application_t *owner_app;
+
+      owner_wrk = app_worker_get (sep->app_wrk_index);
+      owner_app = application_get (owner_wrk->app_index);
+      ns_index = owner_app->ns_index;
+    }
+  app_ns = app_namespace_get (ns_index);
+  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;
     }
 }
 
-static int
-vnet_bind_i (vnet_bind_args_t * a)
+static inline int
+vnet_bind_inline (vnet_bind_args_t * a)
 {
-  u64 lh, ll_handle = SESSION_INVALID_HANDLE;
-  u32 table_index, fib_proto;
+  u64 ll_handle = SESSION_INVALID_HANDLE;
   app_worker_t *app_wrk;
   application_t *app;
   int rv;
@@ -163,17 +202,12 @@ vnet_bind_i (vnet_bind_args_t * a)
       return VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
     }
   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, 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;
 
-  fib_proto = session_endpoint_fib_proto (&a->sep);
-  table_index = application_session_table (app, fib_proto);
-  lh = session_lookup_endpoint_listener (table_index, &a->sep, 1);
-  if (lh != SESSION_INVALID_HANDLE)
-    return VNET_API_ERROR_ADDRESS_IN_USE;
-
   /*
    * Add session endpoint to local session table. Only binds to "inaddr_any"
    * (i.e., zero address) are added to local scope table.
@@ -181,8 +215,8 @@ vnet_bind_i (vnet_bind_args_t * a)
   if (application_has_local_scope (app)
       && session_endpoint_is_local (&a->sep))
     {
-      if ((rv =
-	   application_start_local_listen (app_wrk, &a->sep, &a->handle)))
+      if ((rv = application_start_local_listen (app, &a->sep_ext,
+						&a->handle)))
 	return rv;
       ll_handle = a->handle;
     }
@@ -195,13 +229,17 @@ vnet_bind_i (vnet_bind_args_t * a)
    */
 
   /* Setup listen path down to transport */
-  rv = app_worker_start_listen (app_wrk, &a->sep, &a->handle);
+  rv = application_start_listen (app, &a->sep_ext, &a->handle);
   if (rv && ll_handle != SESSION_INVALID_HANDLE)
-    session_lookup_del_session_endpoint (table_index, &a->sep);
+    {
+      application_stop_local_listen (a->app_index, a->wrk_map_index,
+				     ll_handle);
+      return rv;
+    }
 
   /*
    * Store in local table listener the index of the transport layer
-   * listener. We'll need local listeners are hit and we need to
+   * listener. We'll need if if local listeners are hit and we need to
    * return global handle
    */
   if (ll_handle != SESSION_INVALID_HANDLE)
@@ -210,18 +248,19 @@ vnet_bind_i (vnet_bind_args_t * a)
       stream_session_t *tl;
       ll = application_get_local_listener_w_handle (ll_handle);
       tl = listen_session_get_from_handle (a->handle);
-      ll->transport_listener_index = tl->session_index;
+      if (ll->transport_listener_index == ~0)
+	ll->transport_listener_index = tl->session_index;
     }
   return rv;
 }
 
-int
-vnet_unbind_i (u32 app_index, session_handle_t handle)
+static inline int
+vnet_unbind_inline (vnet_unbind_args_t * a)
 {
   application_t *app;
   int rv;
 
-  if (!(app = application_get_if_valid (app_index)))
+  if (!(app = application_get_if_valid (a->app_index)))
     {
       SESSION_DBG ("app (%d) not attached", wrk_map_index);
       return VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
@@ -229,7 +268,8 @@ vnet_unbind_i (u32 app_index, session_handle_t handle)
 
   if (application_has_local_scope (app))
     {
-      if ((rv = application_stop_local_listen (handle, app_index)))
+      if ((rv = application_stop_local_listen (a->app_index,
+					       a->wrk_map_index, a->handle)))
 	return rv;
     }
 
@@ -237,7 +277,8 @@ vnet_unbind_i (u32 app_index, session_handle_t handle)
    * Clear the global scope table of the listener
    */
   if (application_has_global_scope (app))
-    return app_worker_stop_listen (handle, app_index);
+    return application_stop_listen (a->app_index, a->wrk_map_index,
+				    a->handle);
   return 0;
 }
 
@@ -247,7 +288,7 @@ application_connect (vnet_connect_args_t * a)
   app_worker_t *server_wrk, *client_wrk;
   u32 table_index, server_index, li;
   stream_session_t *listener;
-  application_t *client;
+  application_t *client, *server;
   local_session_t *ll;
   u8 fib_proto;
   u64 lh;
@@ -256,7 +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, client);
+  session_endpoint_update_for_app (&a->sep_ext, client, 1 /* is_connect */ );
   client_wrk = application_get_worker (client, a->wrk_map_index);
 
   /*
@@ -283,8 +324,11 @@ application_connect (vnet_connect_args_t * a)
        */
       if (server_index != a->app_index)
 	{
-	  server_wrk = app_worker_get (server_index);
-	  ll = application_get_local_listen_session (server_wrk, li);
+	  server = application_get (server_index);
+	  ll = application_get_local_listen_session (server, li);
+	  listener = (stream_session_t *) ll;
+	  server_wrk = application_listener_select_worker (listener,
+							   1 /* is_local */ );
 	  return application_local_session_connect (client_wrk,
 						    server_wrk, ll,
 						    a->api_context);
@@ -308,13 +352,11 @@ global_scope:
   listener = session_lookup_listener (table_index, &a->sep);
   if (listener)
     {
-      server_wrk = app_worker_get (listener->app_wrk_index);
-      if (server_wrk)
-	{
-	  ll = (local_session_t *) listener;
-	  return application_local_session_connect (client_wrk, server_wrk,
-						    ll, a->api_context);
-	}
+      server_wrk = application_listener_select_worker (listener,
+						       0 /* is_local */ );
+      ll = (local_session_t *) listener;
+      return application_local_session_connect (client_wrk, server_wrk, ll,
+						a->api_context);
     }
 
   /*
@@ -345,8 +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,
@@ -388,10 +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;
 
@@ -445,6 +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
  *
@@ -460,6 +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;
 
@@ -475,6 +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);
@@ -488,6 +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);
 
@@ -496,9 +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;
 }
 
@@ -509,35 +572,37 @@ 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_i (a);
+  return vnet_bind_inline (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;
@@ -553,14 +618,14 @@ vnet_unbind_uri (vnet_unbind_args_t * a)
 				      (session_endpoint_t *) & sep);
   if (!listener)
     return VNET_API_ERROR_ADDRESS_NOT_IN_USE;
-
-  return vnet_unbind_i (a->app_index, listen_session_get_handle (listener));
+  a->handle = listen_session_get_handle (listener);
+  return vnet_unbind_inline (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 */
@@ -582,30 +647,23 @@ 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;
 
-      if (ls->app_wrk_index != a->app_index
-	  && ls->client_wrk_index != a->app_index)
-	{
-	  clib_warning ("app %u is neither client nor server for session %u",
-			a->app_index, a->app_index);
-	  return VNET_API_ERROR_INVALID_VALUE;
-	}
       return application_local_session_disconnect (a->app_index, ls);
     }
   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 */
@@ -620,7 +678,7 @@ clib_error_t *
 vnet_bind (vnet_bind_args_t * a)
 {
   int rv;
-  if ((rv = vnet_bind_i (a)))
+  if ((rv = vnet_bind_inline (a)))
     return clib_error_return_code (0, rv, 0, "bind failed: %d", rv);
   return 0;
 }
@@ -629,7 +687,7 @@ clib_error_t *
 vnet_unbind (vnet_unbind_args_t * a)
 {
   int rv;
-  if ((rv = vnet_unbind_i (a->app_index, a->handle)))
+  if ((rv = vnet_unbind_inline (a)))
     return clib_error_return_code (0, rv, 0, "unbind failed: %d", rv);
   return 0;
 }