Improve bind interface

adapter/router.go

@@ -7,6 +7,7 @@ import (
 
 	"github.com/sagernet/sing-box/common/geoip"
 	"github.com/sagernet/sing-dns"
+	"github.com/sagernet/sing/common/control"
 	N "github.com/sagernet/sing/common/network"
 
 	"golang.org/x/net/dns/dnsmessage"
@@ -14,15 +15,21 @@ import (
 
 type Router interface {
 	Service
+
 	Outbound(tag string) (Outbound, bool)
 	DefaultOutbound(network string) Outbound
+
 	RouteConnection(ctx context.Context, conn net.Conn, metadata InboundContext) error
 	RoutePacketConnection(ctx context.Context, conn N.PacketConn, metadata InboundContext) error
+
 	GeoIPReader() *geoip.Reader
 	LoadGeosite(code string) (Rule, error)
+
 	Exchange(ctx context.Context, message *dnsmessage.Message) (*dnsmessage.Message, error)
 	Lookup(ctx context.Context, domain string, strategy dns.DomainStrategy) ([]netip.Addr, error)
 	LookupDefault(ctx context.Context, domain string) ([]netip.Addr, error)
+
+	InterfaceBindManager() control.BindManager
 	AutoDetectInterface() bool
 	DefaultInterfaceName() string
 	DefaultInterfaceIndex() int