dbus: register object manager object before requesting dbus name

Working on NetworkManager 1.12.4 and sometimes (rarely), when creating
a NM client object before NetworkManager service start, this object will
never be running.
In that case, we can see the following log:
"[GLIB-GLib-GIO WARN] Error calling GetManagedObjects() when name
owner :1.5 for name org.freedesktop.NetworkManager came back:
GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod:
No such interface 'org.freedesktop.DBus.ObjectManager' on object
at path /org/freedesktop".

Object Manager object shall be registered before requesting dbus name
to be sure that 'org.freedesktop.Dbus.ObjectManager' interface is present
when name owner change is received by libnm.

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/merge_requests/51
This commit is contained in:
Sebastien Fabre 2018-11-20 14:24:16 +01:00 committed by Thomas Haller
parent 15a2a291ea
commit dc0cdbb57e

View file

@ -1538,6 +1538,18 @@ nm_dbus_manager_acquire_bus (NMDBusManager *self)
return FALSE;
}
registration_id = g_dbus_connection_register_object (connection,
OBJECT_MANAGER_SERVER_BASE_PATH,
NM_UNCONST_PTR (GDBusInterfaceInfo, &interface_info_objmgr),
&dbus_vtable_objmgr,
self,
NULL,
&error);
if (!registration_id) {
_LOGE ("failure to register object manager: %s", error->message);
return FALSE;
}
ret = _nm_dbus_proxy_call_sync (proxy,
"RequestName",
g_variant_new ("(su)",
@ -1550,6 +1562,7 @@ nm_dbus_manager_acquire_bus (NMDBusManager *self)
if (!ret) {
_LOGE ("fatal failure to acquire D-Bus service \"%s"": %s",
NM_DBUS_SERVICE, error->message);
g_dbus_connection_unregister_object(connection, registration_id);
return FALSE;
}
@ -1557,18 +1570,7 @@ nm_dbus_manager_acquire_bus (NMDBusManager *self)
if (result != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
_LOGE ("fatal failure to acquire D-Bus service \"%s\" (%u). Service already taken",
NM_DBUS_SERVICE, (guint) result);
return FALSE;
}
registration_id = g_dbus_connection_register_object (connection,
OBJECT_MANAGER_SERVER_BASE_PATH,
NM_UNCONST_PTR (GDBusInterfaceInfo, &interface_info_objmgr),
&dbus_vtable_objmgr,
self,
NULL,
&error);
if (!registration_id) {
_LOGE ("failure to register object manager: %s", error->message);
g_dbus_connection_unregister_object(connection, registration_id);
return FALSE;
}