Close idle connections of unreferenced outbounds and DNS servers

protocol/cloudflare/inbound.go

@@ -16,6 +16,7 @@ import (
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing-cloudflared"
 	"github.com/sagernet/sing-tun"
+	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/bufio"
 	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
@@ -79,14 +80,16 @@ func NewInbound(ctx context.Context, router adapter.Router, logger log.ContextLo
 	}
 
 	return &Inbound{
-		Adapter: inbound.NewAdapter(C.TypeCloudflared, tag),
-		service: service,
+		Adapter:    inbound.NewAdapter(C.TypeCloudflared, tag),
+		service:    service,
+		references: common.FilterNotDefault([]string{options.ControlDialer.Detour, options.TunnelDialer.Detour}),
 	}, nil
 }
 
 type Inbound struct {
 	inbound.Adapter
-	service *cloudflared.Service
+	service    *cloudflared.Service
+	references []string
 }
 
 func (i *Inbound) Start(stage adapter.StartStage) error {
@@ -255,6 +258,10 @@ func (h *icmpRouterHandler) RouteICMPFlow(source netip.Addr, destination netip.A
 	}
 }
 
+func (i *Inbound) References() []string {
+	return i.references
+}
+
 var (
 	_ N.HandshakeSuccess   = (*routedConn)(nil)
 	_ N.ReaderWithUpstream = (*routedConn)(nil)