libnm-core: add _nm_setting_class_transform_property()

Add a new kind of setting property override, for indicating that a
property exists in both the NMSetting and the D-Bus representation,
but in different formats, requiring conversion from one to the other.

Also, if a property is transformable, then compare the transformed
forms in nm_setting_compare() (since the D-Bus property types have
more metadata built-in).

1 files changed, 9 insertions, 0 deletions

diff --git a/libnm-core/nm-setting-private.h b/libnm-core/nm-setting-private.h
index 9d9a4caa4f..aad7e51697 100644
--- a/libnm-core/nm-setting-private.h
+++ b/libnm-core/nm-setting-private.h
@@ -158,4 +158,13 @@ void _nm_setting_class_override_property (NMSettingClass *setting_class,
                                           NMSettingPropertySetFunc set_func,
                                           NMSettingPropertyNotSetFunc not_set_func);
 
+typedef void (*NMSettingPropertyTransformFunc) (const GValue *from,
+                                                GValue       *to);
+
+void _nm_setting_class_transform_property (NMSettingClass *setting_class,
+                                           const char *property_name,
+                                           GType dbus_type,
+                                           NMSettingPropertyTransformFunc to_dbus,
+                                           NMSettingPropertyTransformFunc from_dbus);
+
 #endif  /* NM_SETTING_PRIVATE_H */