add router handler option

pkg/handler/ss/udp/handler.go

@@ -35,9 +35,7 @@ func NewHandler(opts ...handler.Option) handler.Handler {
 
 	return &ssuHandler{
 		bypass: options.Bypass,
-		router: (&chain.Router{}).
-			WithLogger(options.Logger).
-			WithResolver(options.Resolver),
+		router: options.Router,
 		logger: options.Logger,
 	}
 }
@@ -47,16 +45,9 @@ func (h *ssuHandler) Init(md md.Metadata) (err error) {
 		return err
 	}
 
-	h.router.WithRetry(h.md.retryCount)
-
 	return nil
 }
 
-// WithChain implements chain.Chainable interface
-func (h *ssuHandler) WithChain(chain *chain.Chain) {
-	h.router.WithChain(chain)
-}
-
 func (h *ssuHandler) Handle(ctx context.Context, conn net.Conn) {
 	defer conn.Close()
 

pkg/handler/ss/udp/metadata.go

@@ -13,7 +13,6 @@ import (
 type metadata struct {
 	cipher      core.Cipher
 	readTimeout time.Duration
-	retryCount  int
 	bufferSize  int
 }
 
@@ -22,7 +21,6 @@ func (h *ssuHandler) parseMetadata(md mdata.Metadata) (err error) {
 		users       = "users"
 		key         = "key"
 		readTimeout = "readTimeout"
-		retryCount  = "retry"
 		bufferSize  = "bufferSize"
 	)
 
@@ -42,7 +40,6 @@ func (h *ssuHandler) parseMetadata(md mdata.Metadata) (err error) {
 	}
 
 	h.md.readTimeout = mdata.GetDuration(md, readTimeout)
-	h.md.retryCount = mdata.GetInt(md, retryCount)
 
 	if bs := mdata.GetInt(md, bufferSize); bs > 0 {
 		h.md.bufferSize = int(math.Min(math.Max(float64(bs), 512), 64*1024))