add proxy protocol

dialer/option.go

@@ -12,6 +12,7 @@ type Options struct {
 	Auth          *url.Userinfo
 	TLSConfig     *tls.Config
 	Logger        logger.Logger
+	ProxyProtocol int
 }
 
 type Option func(opts *Options)
@@ -34,6 +35,12 @@ func LoggerOption(logger logger.Logger) Option {
 	}
 }
 
+func ProxyProtocolOption(ppv int) Option {
+	return func(opts *Options) {
+		opts.ProxyProtocol = ppv
+	}
+}
+
 type DialOptions struct {
 	Host      string
 	NetDialer *dialer.NetDialer

listener/option.go

@@ -21,6 +21,7 @@ type Options struct {
 	Chain         chain.Chainer
 	Logger        logger.Logger
 	Service       string
+	ProxyProtocol int
 }
 
 type Option func(opts *Options)
@@ -78,3 +79,9 @@ func ServiceOption(service string) Option {
 		opts.Service = service
 	}
 }
+
+func ProxyProtocolOption(ppv int) Option {
+	return func(opts *Options) {
+		opts.ProxyProtocol = ppv
+	}
+}