diff --git a/include/nm-macros-internal.h b/include/nm-macros-internal.h
index 8260c2b562..9be6b0f321 100644
--- a/include/nm-macros-internal.h
+++ b/include/nm-macros-internal.h
@@ -189,6 +189,29 @@ nm_clear_g_source (guint *id)
 #define NM_FLAGS_ANY(flags, check)  ( ( ((flags) & (check)) != 0       ) ? TRUE : FALSE )
 #define NM_FLAGS_ALL(flags, check)  ( ( ((flags) & (check)) == (check) ) ? TRUE : FALSE )
 
+#define NM_FLAGS_SET(flags, val)  ({ \
+		const typeof(flags) _flags = (flags); \
+		const typeof(flags) _val = (val); \
+		\
+		_flags | _val; \
+	})
+
+#define NM_FLAGS_UNSET(flags, val)  ({ \
+		const typeof(flags) _flags = (flags); \
+		const typeof(flags) _val = (val); \
+		\
+		_flags & (~_val); \
+	})
+
+#define NM_FLAGS_ASSIGN(flags, val, assign)  ({ \
+		const typeof(flags) _flags = (flags); \
+		const typeof(flags) _val = (val); \
+		\
+		(assign) \
+			? _flags | (_val) \
+			: _flags & (~_val); \
+	})
+
 /*****************************************************************************/
 
 #endif /* __NM_MACROS_INTERNAL_H__ */