Refactor: MainResolver

component/dialer/options.go

@@ -12,6 +12,7 @@ type option struct {
 	interfaceName string
 	addrReuse     bool
 	routingMark   int
+	direct        bool
 }
 
 type Option func(opt *option)
@@ -33,3 +34,9 @@ func WithRoutingMark(mark int) Option {
 		opt.routingMark = mark
 	}
 }
+
+func WithDirect() Option {
+	return func(opt *option) {
+		opt.direct = true
+	}
+}