Refactor TLS

option/tls.go

@@ -1,11 +1,5 @@
 package option
 
-import (
-	"crypto/tls"
-
-	E "github.com/sagernet/sing/common/exceptions"
-)
-
 type InboundTLSOptions struct {
 	Enabled         bool                `json:"enabled,omitempty"`
 	ServerName      string              `json:"server_name,omitempty"`
@@ -32,18 +26,3 @@ type OutboundTLSOptions struct {
 	Certificate     string           `json:"certificate,omitempty"`
 	CertificatePath string           `json:"certificate_path,omitempty"`
 }
-
-func ParseTLSVersion(version string) (uint16, error) {
-	switch version {
-	case "1.0":
-		return tls.VersionTLS10, nil
-	case "1.1":
-		return tls.VersionTLS11, nil
-	case "1.2":
-		return tls.VersionTLS12, nil
-	case "1.3":
-		return tls.VersionTLS13, nil
-	default:
-		return 0, E.New("unknown tls version:", version)
-	}
-}