refactor: DNS

protocol/dns/outbound.go

@@ -14,6 +14,7 @@ import (
 	"github.com/sagernet/sing/common/logger"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
+	"github.com/sagernet/sing/service"
 )
 
 func RegisterOutbound(registry *outbound.Registry) {
@@ -22,14 +23,14 @@ func RegisterOutbound(registry *outbound.Registry) {
 
 type Outbound struct {
 	outbound.Adapter
-	router adapter.Router
+	router adapter.DNSRouter
 	logger logger.ContextLogger
 }
 
 func NewOutbound(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.StubOptions) (adapter.Outbound, error) {
 	return &Outbound{
 		Adapter: outbound.NewAdapter(C.TypeDNS, tag, []string{N.NetworkTCP, N.NetworkUDP}, nil),
-		router:  router,
+		router:  service.FromContext[adapter.DNSRouter](ctx),
 		logger:  logger,
 	}, nil
 }