[daemon-dev][daemon-fix] starting services by direct message (autostart) and some...
[platform/upstream/dbus.git] / bus / activation.c
index 7ce463c..cd77faa 100644 (file)
@@ -80,7 +80,14 @@ typedef struct BusPendingActivationEntry BusPendingActivationEntry;
 
 struct BusPendingActivationEntry
 {
+  /* Normally a method call, but if connection is NULL, this is a signal
+   * instead.
+   */
   DBusMessage *activation_message;
+  /* NULL if this activation entry is for the dbus-daemon itself,
+   * waiting for systemd to start. In this case, auto_activation is always
+   * TRUE.
+   */
   DBusConnection *connection;
 
   dbus_bool_t auto_activation;
@@ -257,6 +264,7 @@ update_desktop_file_entry (BusActivation       *activation,
 
   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
 
+  retval = FALSE;
   name = NULL;
   exec = NULL;
   user = NULL;
@@ -416,8 +424,11 @@ update_desktop_file_entry (BusActivation       *activation,
 
       if (_dbus_hash_table_lookup_string (activation->entries, name))
         {
-          _dbus_verbose ("The new service name \"%s\" of service file \"%s\" already in cache, ignoring\n",
+          _dbus_verbose ("The new service name \"%s\" of service file \"%s\" is already in cache, ignoring\n",
                          name, _dbus_string_get_const_data (&file_path));
+          dbus_set_error (error, DBUS_ERROR_FAILED,
+                          "The new service name \"%s\" of service file \"%s\" is already in cache, ignoring\n",
+                          name, _dbus_string_get_const_data (&file_path));
           goto out;
         }
 
@@ -446,8 +457,7 @@ update_desktop_file_entry (BusActivation       *activation,
            * the entries hash table */
           _dbus_hash_table_remove_string (entry->s_dir->entries,
                                           entry->filename);
-          bus_activation_entry_unref (entry);
-          return FALSE;
+          goto out;
         }
     }
 
@@ -465,7 +475,7 @@ out:
   if (entry)
     bus_activation_entry_unref (entry);
 
-  return FALSE;
+  return retval;
 }
 
 static dbus_bool_t
@@ -881,8 +891,6 @@ bus_activation_new (BusContext        *context,
                     DBusError         *error)
 {
   BusActivation *activation;
-  DBusList      *link;
-  char          *dir;
 
   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
 
@@ -1105,7 +1113,8 @@ bus_activation_service_created (BusActivation  *activation,
       BusPendingActivationEntry *entry = link->data;
       DBusList *next = _dbus_list_get_next_link (&pending_activation->entries, link);
 
-      if (dbus_connection_get_is_connected (entry->connection))
+      /* entry->connection is NULL for activating systemd */
+      if (entry->connection && dbus_connection_get_is_connected (entry->connection))
         {
           /* Only send activation replies to regular activation requests. */
           if (!entry->auto_activation)
@@ -1174,11 +1183,18 @@ bus_activation_send_pending_auto_activation_messages (BusActivation  *activation
       BusPendingActivationEntry *entry = link->data;
       DBusList *next = _dbus_list_get_next_link (&pending_activation->entries, link);
 
-      if (entry->auto_activation && dbus_connection_get_is_connected (entry->connection))
+      if (entry->auto_activation && (entry->connection == NULL || dbus_connection_get_is_connected (entry->connection)))
         {
           DBusConnection *addressed_recipient;
 
-          addressed_recipient = bus_service_get_primary_owners_connection (service);
+          /* kdbus change - we can not send anything using phantom connections
+           * (DBusConnection structures for services other than daemon)
+           * so we have to use daemon connection
+           */
+          if(bus_context_is_kdbus(bus_transaction_get_context (transaction)))
+              addressed_recipient = entry->connection;
+          else
+              addressed_recipient = bus_service_get_primary_owners_connection (service);
 
           /* Resume dispatching where we left off in bus_dispatch() */
           if (!bus_dispatch_matches (transaction,
@@ -1232,7 +1248,7 @@ try_send_activation_failure (BusPendingActivation *pending_activation,
       BusPendingActivationEntry *entry = link->data;
       DBusList *next = _dbus_list_get_next_link (&pending_activation->entries, link);
 
-      if (dbus_connection_get_is_connected (entry->connection))
+      if (entry->connection && dbus_connection_get_is_connected (entry->connection))
         {
           if (!bus_transaction_send_error_reply (transaction,
                                                  entry->connection,
@@ -1323,22 +1339,16 @@ handle_servicehelper_exit_error (int        exit_code,
     }
 }
 
-static dbus_bool_t
-babysitter_watch_callback (DBusWatch     *watch,
-                           unsigned int   condition,
-                           void          *data)
+static void
+pending_activation_finished_cb (DBusBabysitter *babysitter,
+                                void           *data)
 {
   BusPendingActivation *pending_activation = data;
-  dbus_bool_t retval;
-  DBusBabysitter *babysitter;
   dbus_bool_t uses_servicehelper;
 
-  babysitter = pending_activation->babysitter;
-
+  _dbus_assert (babysitter == pending_activation->babysitter);
   _dbus_babysitter_ref (babysitter);
 
-  retval = dbus_watch_handle (watch, condition);
-
   /* There are two major cases here; are we the system bus or the session?  Here this
    * is distinguished by whether or not we use a setuid helper launcher.  With the launch helper,
    * some process exit codes are meaningful, processed by handle_servicehelper_exit_error.
@@ -1349,15 +1359,7 @@ babysitter_watch_callback (DBusWatch     *watch,
    */
   uses_servicehelper = bus_context_get_servicehelper (pending_activation->activation->context) != NULL;
 
-  /* FIXME this is broken in the same way that
-   * connection watches used to be; there should be
-   * a separate callback for status change, instead
-   * of doing "if we handled a watch status might
-   * have changed"
-   *
-   * Fixing this lets us move dbus_watch_handle
-   * calls into dbus-mainloop.c
-   */
+  /* strictly speaking this is redundant with the check in dbus-spawn now */
   if (_dbus_babysitter_get_child_exited (babysitter))
     {
       DBusError error;
@@ -1417,8 +1419,6 @@ babysitter_watch_callback (DBusWatch     *watch,
     }
 
   _dbus_babysitter_unref (babysitter);
-
-  return retval;
 }
 
 static dbus_bool_t
@@ -1427,9 +1427,9 @@ add_babysitter_watch (DBusWatch      *watch,
 {
   BusPendingActivation *pending_activation = data;
 
-  return _dbus_loop_add_watch_full (
+  return _dbus_loop_add_watch (
       bus_context_get_loop (pending_activation->activation->context),
-      watch, babysitter_watch_callback, pending_activation, NULL);
+      watch);
 }
 
 static void
@@ -1442,6 +1442,16 @@ remove_babysitter_watch (DBusWatch      *watch,
                            watch);
 }
 
+static void
+toggle_babysitter_watch (DBusWatch      *watch,
+                         void           *data)
+{
+  BusPendingActivation *pending_activation = data;
+
+  _dbus_loop_toggle_watch (bus_context_get_loop (pending_activation->activation->context),
+                           watch);
+}
+
 static dbus_bool_t
 pending_activation_timed_out (void *data)
 {
@@ -1687,7 +1697,6 @@ bus_activation_activate_service (BusActivation  *activation,
   char **envp = NULL;
   int argc;
   dbus_bool_t retval;
-  DBusHashIter iter;
   dbus_bool_t was_pending_activation;
   DBusString command;
 
@@ -1765,7 +1774,8 @@ bus_activation_activate_service (BusActivation  *activation,
   pending_activation_entry->activation_message = activation_message;
   dbus_message_ref (activation_message);
   pending_activation_entry->connection = connection;
-  dbus_connection_ref (connection);
+  if (connection)
+    dbus_connection_ref (connection);
 
   /* Check if the service is being activated */
   pending_activation = _dbus_hash_table_lookup_string (activation->pending_activations, service_name);
@@ -1978,7 +1988,7 @@ bus_activation_activate_service (BusActivation  *activation,
                                service_name,
                                entry->systemd_service);
               /* systemd is not around, let's "activate" it. */
-              retval = bus_activation_activate_service (activation, connection, activation_transaction, TRUE,
+              retval = bus_activation_activate_service (activation, NULL, activation_transaction, TRUE,
                                                         message, "org.freedesktop.systemd1", error);
             }
 
@@ -2119,10 +2129,14 @@ bus_activation_activate_service (BusActivation  *activation,
 
   _dbus_assert (pending_activation->babysitter != NULL);
 
+  _dbus_babysitter_set_result_function (pending_activation->babysitter,
+                                        pending_activation_finished_cb,
+                                        pending_activation);
+
   if (!_dbus_babysitter_set_watch_functions (pending_activation->babysitter,
                                              add_babysitter_watch,
                                              remove_babysitter_watch,
-                                             NULL,
+                                             toggle_babysitter_watch,
                                              pending_activation,
                                              NULL))
     {
@@ -2172,7 +2186,7 @@ bus_activation_list_services (BusActivation *activation,
 
  error:
   for (j = 0; j < i; j++)
-    dbus_free (retval[i]);
+    dbus_free (retval[j]);
   dbus_free (retval);
 
   return FALSE;
@@ -2225,7 +2239,7 @@ dbus_activation_systemd_failure (BusActivation *activation,
   return TRUE;
 }
 
-#ifdef DBUS_BUILD_TESTS
+#ifdef DBUS_ENABLE_EMBEDDED_TESTS
 
 #include <stdio.h>
 
@@ -2532,11 +2546,17 @@ dbus_bool_t
 bus_activation_service_reload_test (const DBusString *test_data_dir)
 {
   DBusString directory;
+  const char *tmp;
 
   if (!_dbus_string_init (&directory))
     return FALSE;
 
-  if (!_dbus_string_append (&directory, _dbus_get_tmpdir()))
+  tmp = _dbus_get_tmpdir ();
+
+  if (tmp == NULL)
+    return FALSE;
+
+  if (!_dbus_string_append (&directory, tmp))
     return FALSE;
 
   if (!_dbus_string_append (&directory, "/dbus-reload-test-") ||
@@ -2550,14 +2570,18 @@ bus_activation_service_reload_test (const DBusString *test_data_dir)
     _dbus_assert_not_reached ("could not initiate service reload test");
 
   if (!do_service_reload_test (&directory, FALSE))
-    ; /* Do nothing? */
+    {
+      /* Do nothing? */
+    }
 
   /* Do OOM tests */
   if (!init_service_reload_test (&directory))
     _dbus_assert_not_reached ("could not initiate service reload test");
 
   if (!do_service_reload_test (&directory, TRUE))
-    ; /* Do nothing? */
+    {
+      /* Do nothing? */
+    }
 
   /* Cleanup test directory */
   if (!cleanup_service_reload_test (&directory))
@@ -2568,4 +2592,4 @@ bus_activation_service_reload_test (const DBusString *test_data_dir)
   return TRUE;
 }
 
-#endif /* DBUS_BUILD_TESTS */
+#endif /* DBUS_ENABLE_EMBEDDED_TESTS */