fix metadata

pkg/listener/option.go

@@ -4,6 +4,7 @@ import (
 	"crypto/tls"
 	"net/url"
 
+	"github.com/go-gost/gost/pkg/chain"
 	"github.com/go-gost/gost/pkg/logger"
 )
 
@@ -11,6 +12,7 @@ type Options struct {
 	Addr      string
 	Auths     []*url.Userinfo
 	TLSConfig *tls.Config
+	Chain     *chain.Chain
 	Logger    logger.Logger
 }
 
@@ -34,6 +36,12 @@ func TLSConfigOption(tlsConfig *tls.Config) Option {
 	}
 }
 
+func ChainOption(chain *chain.Chain) Option {
+	return func(opts *Options) {
+		opts.Chain = chain
+	}
+}
+
 func LoggerOption(logger logger.Logger) Option {
 	return func(opts *Options) {
 		opts.Logger = logger