v1.2.3

Co-authored-by: RPRX <63339210+rprx@users.noreply.github.com>

README.md

@@ -20,6 +20,9 @@
 - Magisk
   - [Xray4Magisk](https://github.com/CerteKim/Xray4Magisk)
   - [Xray_For_Magisk](https://github.com/E7KMbb/Xray_For_Magisk)
+- Homebrew
+  - [Repository 0](https://github.com/N4FA/homebrew-xray)
+  - [Repository 1](https://github.com/xiruizhao/homebrew-xray)
 
 ## Usage
 
@@ -29,10 +32,14 @@
 
 - OpenWrt
   - [PassWall](https://github.com/xiaorouji/openwrt-passwall)
+  - [Hello World](https://github.com/jerrykuku/luci-app-vssr)
+  - [ShadowSocksR Plus+](https://github.com/fw876/helloworld)
 - Windows
   - [v2rayN](https://github.com/2dust/v2rayN)
+  - [Qv2ray](https://github.com/Qv2ray/Qv2ray)
 - Android
   - [v2rayNG](https://github.com/2dust/v2rayNG)
+  - [Kitsunebi](https://github.com/rurirei/Kitsunebi/tree/release_xtls)
 - iOS / Mac
   - [Shadowrocket](https://apps.apple.com/app/shadowrocket/id932747118)
 

app/commander/outbound.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/net/cnc"
 	"github.com/xtls/xray-core/common/signal/done"
 	"github.com/xtls/xray-core/transport"
 )
@@ -79,7 +80,7 @@ func (co *Outbound) Dispatch(ctx context.Context, link *transport.Link) {
 	}
 
 	closeSignal := done.New()
-	c := net.NewConnection(net.ConnectionInputMulti(link.Writer), net.ConnectionOutputMulti(link.Reader), net.ConnectionOnClose(closeSignal))
+	c := cnc.NewConnection(cnc.ConnectionInputMulti(link.Writer), cnc.ConnectionOutputMulti(link.Reader), cnc.ConnectionOnClose(closeSignal))
 	co.listener.add(c)
 	co.access.RUnlock()
 	<-closeSignal.Wait()

app/dispatcher/default.go

@@ -175,12 +175,21 @@ func (d *DefaultDispatcher) getLink(ctx context.Context) (*transport.Link, *tran
 	return inboundLink, outboundLink
 }
 
-func shouldOverride(result SniffResult, domainOverride []string) bool {
-	for _, p := range domainOverride {
-		if strings.HasPrefix(result.Protocol(), p) {
+func shouldOverride(result SniffResult, request session.SniffingRequest) bool {
+	domain := result.Domain()
+	for _, d := range request.ExcludeForDomain {
+		if domain == d {
+			return false
+		}
+	}
+
+	protocol := result.Protocol()
+	for _, p := range request.OverrideDestinationForProtocol {
+		if strings.HasPrefix(protocol, p) {
 			return true
 		}
 	}
+
 	return false
 }
 
@@ -213,7 +222,7 @@ func (d *DefaultDispatcher) Dispatch(ctx context.Context, destination net.Destin
 			if err == nil {
 				content.Protocol = result.Protocol()
 			}
-			if err == nil && shouldOverride(result, sniffingRequest.OverrideDestinationForProtocol) {
+			if err == nil && shouldOverride(result, sniffingRequest) {
 				domain := result.Domain()
 				newError("sniffed domain: ", domain).WriteToLog(session.ExportIDToError(ctx))
 				destination.Address = net.ParseAddress(domain)
@@ -263,14 +272,18 @@ func (d *DefaultDispatcher) routedDispatch(ctx context.Context, link *transport.
 		skipRoutePick = content.SkipRoutePick
 	}
 
+	routingLink := routing_session.AsRoutingContext(ctx)
+	inTag := routingLink.GetInboundTag()
+	isPickRoute := false
 	if d.router != nil && !skipRoutePick {
-		if route, err := d.router.PickRoute(routing_session.AsRoutingContext(ctx)); err == nil {
-			tag := route.GetOutboundTag()
-			if h := d.ohm.GetHandler(tag); h != nil {
-				newError("taking detour [", tag, "] for [", destination, "]").WriteToLog(session.ExportIDToError(ctx))
+		if route, err := d.router.PickRoute(routingLink); err == nil {
+			outTag := route.GetOutboundTag()
+			isPickRoute = true
+			if h := d.ohm.GetHandler(outTag); h != nil {
+				newError("taking detour [", outTag, "] for [", destination, "]").WriteToLog(session.ExportIDToError(ctx))
 				handler = h
 			} else {
-				newError("non existing tag: ", tag).AtWarning().WriteToLog(session.ExportIDToError(ctx))
+				newError("non existing outTag: ", outTag).AtWarning().WriteToLog(session.ExportIDToError(ctx))
 			}
 		} else {
 			newError("default route for ", destination).WriteToLog(session.ExportIDToError(ctx))
@@ -290,7 +303,19 @@ func (d *DefaultDispatcher) routedDispatch(ctx context.Context, link *transport.
 
 	if accessMessage := log.AccessMessageFromContext(ctx); accessMessage != nil {
 		if tag := handler.Tag(); tag != "" {
-			accessMessage.Detour = tag
+			if isPickRoute {
+				if inTag != "" {
+					accessMessage.Detour = inTag + " -> " + tag
+				} else {
+					accessMessage.Detour = tag
+				}
+			} else {
+				if inTag != "" {
+					accessMessage.Detour = inTag + " >> " + tag
+				} else {
+					accessMessage.Detour = tag
+				}
+			}
 		}
 		log.Record(accessMessage)
 	}

app/dns/dohdns.go

@@ -14,6 +14,7 @@ import (
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/net/cnc"
 	"github.com/xtls/xray-core/common/protocol/dns"
 	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/common/signal/pubsub"
@@ -28,6 +29,7 @@ import (
 // which is compatible with traditional dns over udp(RFC1035),
 // thus most of the DOH implementation is copied from udpns.go
 type DoHNameServer struct {
+	dispatcher routing.Dispatcher
 	sync.RWMutex
 	ips        map[string]record
 	pub        *pubsub.Service
@@ -44,40 +46,8 @@ func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher, clientIP net.
 	newError("DNS: created Remote DOH client for ", url.String()).AtInfo().WriteToLog()
 	s := baseDOHNameServer(url, "DOH", clientIP)
 
-	// Dispatched connection will be closed (interrupted) after each request
-	// This makes DOH inefficient without a keep-alived connection
-	// See: core/app/proxyman/outbound/handler.go:113
-	// Using mux (https request wrapped in a stream layer) improves the situation.
-	// Recommend to use NewDoHLocalNameServer (DOHL:) if xray instance is running on
-	//  a normal network eg. the server side of xray
-	tr := &http.Transport{
-		MaxIdleConns:        30,
-		IdleConnTimeout:     90 * time.Second,
-		TLSHandshakeTimeout: 30 * time.Second,
-		ForceAttemptHTTP2:   true,
-		DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
-			dest, err := net.ParseDestination(network + ":" + addr)
-			if err != nil {
-				return nil, err
-			}
+	s.dispatcher = dispatcher
 
-			link, err := dispatcher.Dispatch(ctx, dest)
-			if err != nil {
-				return nil, err
-			}
-			return net.NewConnection(
-				net.ConnectionInputMulti(link.Writer),
-				net.ConnectionOutputMulti(link.Reader),
-			), nil
-		},
-	}
-
-	dispatchedClient := &http.Client{
-		Transport: tr,
-		Timeout:   60 * time.Second,
-	}
-
-	s.httpClient = dispatchedClient
 	return s, nil
 }
 
@@ -210,6 +180,11 @@ func (s *DoHNameServer) newReqID() uint16 {
 func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, option IPOption) {
 	newError(s.name, " querying: ", domain).AtInfo().WriteToLog(session.ExportIDToError(ctx))
 
+	if s.name+"." == "DOH//"+domain {
+		newError(s.name, " tries to resolve itself! Use IP or set \"hosts\" instead.").AtError().WriteToLog(session.ExportIDToError(ctx))
+		return
+	}
+
 	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(s.clientIP))
 
 	var deadline time.Time
@@ -231,12 +206,12 @@ func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, option IPO
 			}
 
 			dnsCtx = session.ContextWithContent(dnsCtx, &session.Content{
-				Protocol:      "https",
-				SkipRoutePick: true,
+				Protocol: "https",
+				//SkipRoutePick: true,
 			})
 
 			// forced to use mux for DOH
-			dnsCtx = session.ContextWithMuxPrefered(dnsCtx, true)
+			// dnsCtx = session.ContextWithMuxPrefered(dnsCtx, true)
 
 			var cancel context.CancelFunc
 			dnsCtx, cancel = context.WithDeadline(dnsCtx, deadline)
@@ -244,17 +219,17 @@ func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, option IPO
 
 			b, err := dns.PackMessage(r.msg)
 			if err != nil {
-				newError("failed to pack dns query").Base(err).AtError().WriteToLog()
+				newError("failed to pack dns query for ", domain).Base(err).AtError().WriteToLog()
 				return
 			}
 			resp, err := s.dohHTTPSContext(dnsCtx, b.Bytes())
 			if err != nil {
-				newError("failed to retrieve response").Base(err).AtError().WriteToLog()
+				newError("failed to retrieve response for ", domain).Base(err).AtError().WriteToLog()
 				return
 			}
 			rec, err := parseResponse(resp)
 			if err != nil {
-				newError("failed to handle DOH response").Base(err).AtError().WriteToLog()
+				newError("failed to handle DOH response for ", domain).Base(err).AtError().WriteToLog()
 				return
 			}
 			s.updateIP(r, rec)
@@ -272,7 +247,44 @@ func (s *DoHNameServer) dohHTTPSContext(ctx context.Context, b []byte) ([]byte,
 	req.Header.Add("Accept", "application/dns-message")
 	req.Header.Add("Content-Type", "application/dns-message")
 
-	resp, err := s.httpClient.Do(req.WithContext(ctx))
+	hc := s.httpClient
+
+	// Dispatched connection will be closed (interrupted) after each request
+	// This makes DOH inefficient without a keep-alived connection
+	// See: core/app/proxyman/outbound/handler.go:113
+	// Using mux (https request wrapped in a stream layer) improves the situation.
+	// Recommend to use NewDoHLocalNameServer (DOHL:) if xray instance is running on
+	//  a normal network eg. the server side of xray
+
+	if s.dispatcher != nil {
+		tr := &http.Transport{
+			MaxIdleConns:        30,
+			IdleConnTimeout:     90 * time.Second,
+			TLSHandshakeTimeout: 30 * time.Second,
+			ForceAttemptHTTP2:   true,
+			DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
+				dest, err := net.ParseDestination(network + ":" + addr)
+				if err != nil {
+					return nil, err
+				}
+
+				link, err := s.dispatcher.Dispatch(ctx, dest)
+				if err != nil {
+					return nil, err
+				}
+				return cnc.NewConnection(
+					cnc.ConnectionInputMulti(link.Writer),
+					cnc.ConnectionOutputMulti(link.Reader),
+				), nil
+			},
+		}
+		hc = &http.Client{
+			Timeout:   time.Second * 180,
+			Transport: tr,
+		}
+	}
+
+	resp, err := hc.Do(req.WithContext(ctx))
 	if err != nil {
 		return nil, err
 	}

app/dns/server.go

@@ -364,6 +364,7 @@ func (s *Server) lookupIPInternal(domain string, option IPOption) ([]net.IP, err
 	if domain == "" {
 		return nil, newError("empty domain name")
 	}
+	domain = strings.ToLower(domain)
 
 	// normalize the FQDN form query
 	if domain[len(domain)-1] == '.' {

app/log/command/command.go

@@ -44,7 +44,7 @@ func (s *service) Register(server *grpc.Server) {
 	RegisterLoggerServiceServer(server, ls)
 
 	// For compatibility purposes
-	vCoreDesc := _LoggerService_serviceDesc
+	vCoreDesc := LoggerService_ServiceDesc
 	vCoreDesc.ServiceName = "v2ray.core.app.log.command.LoggerService"
 	server.RegisterService(&vCoreDesc, ls)
 }

app/log/command/config_grpc.pb.go

@@ -11,6 +11,7 @@ import (
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
 const _ = grpc.SupportPackageIsVersion7
 
 // LoggerServiceClient is the client API for LoggerService service.
@@ -62,7 +63,7 @@ type UnsafeLoggerServiceServer interface {
 }
 
 func RegisterLoggerServiceServer(s grpc.ServiceRegistrar, srv LoggerServiceServer) {
-	s.RegisterService(&_LoggerService_serviceDesc, srv)
+	s.RegisterService(&LoggerService_ServiceDesc, srv)
 }
 
 func _LoggerService_RestartLogger_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
@@ -83,7 +84,10 @@ func _LoggerService_RestartLogger_Handler(srv interface{}, ctx context.Context,
 	return interceptor(ctx, in, info, handler)
 }
 
-var _LoggerService_serviceDesc = grpc.ServiceDesc{
+// LoggerService_ServiceDesc is the grpc.ServiceDesc for LoggerService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var LoggerService_ServiceDesc = grpc.ServiceDesc{
 	ServiceName: "xray.app.log.command.LoggerService",
 	HandlerType: (*LoggerServiceServer)(nil),
 	Methods: []grpc.MethodDesc{

app/proxyman/command/command.go

@@ -140,7 +140,7 @@ func (s *service) Register(server *grpc.Server) {
 	RegisterHandlerServiceServer(server, hs)
 
 	// For compatibility purposes
-	vCoreDesc := _HandlerService_serviceDesc
+	vCoreDesc := HandlerService_ServiceDesc
 	vCoreDesc.ServiceName = "v2ray.core.app.proxyman.command.HandlerService"
 	server.RegisterService(&vCoreDesc, hs)
 }

app/proxyman/command/command_grpc.pb.go

@@ -11,6 +11,7 @@ import (
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
 const _ = grpc.SupportPackageIsVersion7
 
 // HandlerServiceClient is the client API for HandlerService service.
@@ -132,7 +133,7 @@ type UnsafeHandlerServiceServer interface {
 }
 
 func RegisterHandlerServiceServer(s grpc.ServiceRegistrar, srv HandlerServiceServer) {
-	s.RegisterService(&_HandlerService_serviceDesc, srv)
+	s.RegisterService(&HandlerService_ServiceDesc, srv)
 }
 
 func _HandlerService_AddInbound_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
@@ -243,7 +244,10 @@ func _HandlerService_AlterOutbound_Handler(srv interface{}, ctx context.Context,
 	return interceptor(ctx, in, info, handler)
 }
 
-var _HandlerService_serviceDesc = grpc.ServiceDesc{
+// HandlerService_ServiceDesc is the grpc.ServiceDesc for HandlerService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var HandlerService_ServiceDesc = grpc.ServiceDesc{
 	ServiceName: "xray.app.proxyman.command.HandlerService",
 	HandlerType: (*HandlerServiceServer)(nil),
 	Methods: []grpc.MethodDesc{

app/proxyman/config.pb.go

@@ -241,6 +241,7 @@ type SniffingConfig struct {
 	// Override target destination if sniff'ed protocol is in the given list.
 	// Supported values are "http", "tls".
 	DestinationOverride []string `protobuf:"bytes,2,rep,name=destination_override,json=destinationOverride,proto3" json:"destination_override,omitempty"`
+	DomainsExcluded     []string `protobuf:"bytes,3,rep,name=domains_excluded,json=domainsExcluded,proto3" json:"domains_excluded,omitempty"`
 }
 
 func (x *SniffingConfig) Reset() {
@@ -289,6 +290,13 @@ func (x *SniffingConfig) GetDestinationOverride() []string {
 	return nil
 }
 
+func (x *SniffingConfig) GetDomainsExcluded() []string {
+	if x != nil {
+		return x.DomainsExcluded
+	}
+	return nil
+}
+
 type ReceiverConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -756,92 +764,95 @@ var file_app_proxyman_config_proto_rawDesc = []byte{
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+	0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x6e, 0x65, 0x74, 0x2e, 0x49, 0x50, 0x4f, 0x72, 0x44, 0x6f, 0x6d,
+	0x61, 0x69, 0x6e, 0x52, 0x03, 0x76, 0x69, 0x61, 0x12, 0x4e, 0x0a, 0x0f, 0x73, 0x74, 0x72, 0x65,
+	0x61, 0x6d, 0x5f, 0x73, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x18, 0x02, 0x20, 0x01, 0x28,
+	0x0b, 0x32, 0x25, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f,
+	0x72, 0x74, 0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x53, 0x74, 0x72, 0x65,
+	0x61, 0x6d, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x0e, 0x73, 0x74, 0x72, 0x65, 0x61, 0x6d,
+	0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x12, 0x4b, 0x0a, 0x0e, 0x70, 0x72, 0x6f, 0x78,
+	0x79, 0x5f, 0x73, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x18, 0x03, 0x20, 0x01, 0x28, 0x0b,
+	0x32, 0x24, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72,
+	0x74, 0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79,
+	0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x0d, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x53, 0x65, 0x74,
+	0x74, 0x69, 0x6e, 0x67, 0x73, 0x12, 0x54, 0x0a, 0x12, 0x6d, 0x75, 0x6c, 0x74, 0x69, 0x70, 0x6c,
+	0x65, 0x78, 0x5f, 0x73, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x18, 0x04, 0x20, 0x01, 0x28,
+	0x0b, 0x32, 0x25, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x70, 0x72, 0x6f,
+	0x78, 0x79, 0x6d, 0x61, 0x6e, 0x2e, 0x4d, 0x75, 0x6c, 0x74, 0x69, 0x70, 0x6c, 0x65, 0x78, 0x69,
+	0x6e, 0x67, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x11, 0x6d, 0x75, 0x6c, 0x74, 0x69, 0x70,
+	0x6c, 0x65, 0x78, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x22, 0x50, 0x0a, 0x12, 0x4d,
+	0x75, 0x6c, 0x74, 0x69, 0x70, 0x6c, 0x65, 0x78, 0x69, 0x6e, 0x67, 0x43, 0x6f, 0x6e, 0x66, 0x69,
+	0x67, 0x12, 0x18, 0x0a, 0x07, 0x65, 0x6e, 0x61, 0x62, 0x6c, 0x65, 0x64, 0x18, 0x01, 0x20, 0x01,
+	0x28, 0x08, 0x52, 0x07, 0x65, 0x6e, 0x61, 0x62, 0x6c, 0x65, 0x64, 0x12, 0x20, 0x0a, 0x0b, 0x63,
+	0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0d,
+	0x52, 0x0b, 0x63, 0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x2a, 0x23, 0x0a,
+	0x0e, 0x4b, 0x6e, 0x6f, 0x77, 0x6e, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x63, 0x6f, 0x6c, 0x73, 0x12,
+	0x08, 0x0a, 0x04, 0x48, 0x54, 0x54, 0x50, 0x10, 0x00, 0x12, 0x07, 0x0a, 0x03, 0x54, 0x4c, 0x53,
+	0x10, 0x01, 0x42, 0x55, 0x0a, 0x15, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61,
+	0x70, 0x70, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0x50, 0x01, 0x5a, 0x26, 0x67,
+	0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78,
+	0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70, 0x70, 0x2f, 0x70, 0x72, 0x6f,
+	0x78, 0x79, 0x6d, 0x61, 0x6e, 0xaa, 0x02, 0x11, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70,
+	0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+	0x33,
 }
 
 var (

app/proxyman/config.proto

@@ -56,6 +56,7 @@ message SniffingConfig {
   // Override target destination if sniff'ed protocol is in the given list.
   // Supported values are "http", "tls".
   repeated string destination_override = 2;
+  repeated string domains_excluded = 3;
 }
 
 message ReceiverConfig {

app/proxyman/inbound/always.go

@@ -136,6 +136,7 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 					uplinkCounter:   uplinkCounter,
 					downlinkCounter: downlinkCounter,
 					stream:          mss,
+					ctx:             ctx,
 				}
 				h.workers = append(h.workers, worker)
 			}

app/proxyman/inbound/dynamic.go

@@ -156,6 +156,7 @@ func (h *DynamicInboundHandler) refresh() error {
 				uplinkCounter:   uplinkCounter,
 				downlinkCounter: downlinkCounter,
 				stream:          h.streamSettings,
+				ctx:             h.ctx,
 			}
 			if err := worker.Start(); err != nil {
 				newError("failed to create UDP worker").Base(err).AtWarning().WriteToLog()

app/proxyman/inbound/worker.go

@@ -97,6 +97,7 @@ func (w *tcpWorker) callback(conn internet.Connection) {
 	if w.sniffingConfig != nil {
 		content.SniffingRequest.Enabled = w.sniffingConfig.Enabled
 		content.SniffingRequest.OverrideDestinationForProtocol = w.sniffingConfig.DestinationOverride
+		content.SniffingRequest.ExcludeForDomain = w.sniffingConfig.DomainsExcluded
 	}
 	ctx = session.ContextWithContent(ctx, content)
 
@@ -239,6 +240,9 @@ type udpWorker struct {
 
 	checker    *task.Periodic
 	activeConn map[connID]*udpConn
+
+	ctx  context.Context
+	cone bool
 }
 
 func (w *udpWorker) getConnection(id connID) (*udpConn, bool) {
@@ -279,7 +283,10 @@ func (w *udpWorker) callback(b *buf.Buffer, source net.Destination, originalDest
 		src: source,
 	}
 	if originalDest.IsValid() {
-		id.dest = originalDest
+		if !w.cone {
+			id.dest = originalDest
+		}
+		b.UDP = &originalDest
 	}
 	conn, existing := w.getConnection(id)
 
@@ -336,7 +343,7 @@ func (w *udpWorker) clean() error {
 	}
 
 	for addr, conn := range w.activeConn {
-		if nowSec-atomic.LoadInt64(&conn.lastActivityTime) > 8 { // TODO Timeout too small
+		if nowSec-atomic.LoadInt64(&conn.lastActivityTime) > 300 {
 			delete(w.activeConn, addr)
 			conn.Close()
 		}
@@ -357,8 +364,10 @@ func (w *udpWorker) Start() error {
 		return err
 	}
 
+	w.cone = w.ctx.Value("cone").(bool)
+
 	w.checker = &task.Periodic{
-		Interval: time.Second * 16,
+		Interval: time.Minute,
 		Execute:  w.clean,
 	}
 
@@ -441,6 +450,7 @@ func (w *dsWorker) callback(conn internet.Connection) {
 	if w.sniffingConfig != nil {
 		content.SniffingRequest.Enabled = w.sniffingConfig.Enabled
 		content.SniffingRequest.OverrideDestinationForProtocol = w.sniffingConfig.DestinationOverride
+		content.SniffingRequest.ExcludeForDomain = w.sniffingConfig.DomainsExcluded
 	}
 	ctx = session.ContextWithContent(ctx, content)
 

app/proxyman/outbound/handler.go

@@ -7,6 +7,7 @@ import (
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/mux"
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/net/cnc"
 	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/outbound"
@@ -173,7 +174,7 @@ func (h *Handler) Dial(ctx context.Context, dest net.Destination) (internet.Conn
 				downlinkReader, downlinkWriter := pipe.New(opts...)
 
 				go handler.Dispatch(ctx, &transport.Link{Reader: uplinkReader, Writer: downlinkWriter})
-				conn := net.NewConnection(net.ConnectionInputMulti(uplinkWriter), net.ConnectionOutputMulti(downlinkReader))
+				conn := cnc.NewConnection(cnc.ConnectionInputMulti(uplinkWriter), cnc.ConnectionOutputMulti(downlinkReader))
 
 				if config := tls.ConfigFromStreamSettings(h.streamSettings); config != nil {
 					tlsConfig := config.GetTLSConfig(tls.WithDestination(dest))

app/router/command/command.go

@@ -85,7 +85,7 @@ func (s *service) Register(server *grpc.Server) {
 		RegisterRoutingServiceServer(server, rs)
 
 		// For compatibility purposes
-		vCoreDesc := _RoutingService_serviceDesc
+		vCoreDesc := RoutingService_ServiceDesc
 		vCoreDesc.ServiceName = "v2ray.core.app.router.command.RoutingService"
 		server.RegisterService(&vCoreDesc, rs)
 	}))

app/router/command/command_grpc.pb.go

@@ -11,6 +11,7 @@ import (
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
 const _ = grpc.SupportPackageIsVersion7
 
 // RoutingServiceClient is the client API for RoutingService service.
@@ -30,7 +31,7 @@ func NewRoutingServiceClient(cc grpc.ClientConnInterface) RoutingServiceClient {
 }
 
 func (c *routingServiceClient) SubscribeRoutingStats(ctx context.Context, in *SubscribeRoutingStatsRequest, opts ...grpc.CallOption) (RoutingService_SubscribeRoutingStatsClient, error) {
-	stream, err := c.cc.NewStream(ctx, &_RoutingService_serviceDesc.Streams[0], "/xray.app.router.command.RoutingService/SubscribeRoutingStats", opts...)
+	stream, err := c.cc.NewStream(ctx, &RoutingService_ServiceDesc.Streams[0], "/xray.app.router.command.RoutingService/SubscribeRoutingStats", opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -99,7 +100,7 @@ type UnsafeRoutingServiceServer interface {
 }
 
 func RegisterRoutingServiceServer(s grpc.ServiceRegistrar, srv RoutingServiceServer) {
-	s.RegisterService(&_RoutingService_serviceDesc, srv)
+	s.RegisterService(&RoutingService_ServiceDesc, srv)
 }
 
 func _RoutingService_SubscribeRoutingStats_Handler(srv interface{}, stream grpc.ServerStream) error {
@@ -141,7 +142,10 @@ func _RoutingService_TestRoute_Handler(srv interface{}, ctx context.Context, dec
 	return interceptor(ctx, in, info, handler)
 }
 
-var _RoutingService_serviceDesc = grpc.ServiceDesc{
+// RoutingService_ServiceDesc is the grpc.ServiceDesc for RoutingService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var RoutingService_ServiceDesc = grpc.ServiceDesc{
 	ServiceName: "xray.app.router.command.RoutingService",
 	HandlerType: (*RoutingServiceServer)(nil),
 	Methods: []grpc.MethodDesc{

app/router/condition.go

@@ -91,7 +91,7 @@ func (m *DomainMatcher) Apply(ctx routing.Context) bool {
 	if len(domain) == 0 {
 		return false
 	}
-	return m.ApplyDomain(domain)
+	return m.ApplyDomain(strings.ToLower(domain))
 }
 
 type MultiGeoIPMatcher struct {

app/stats/command/command.go

@@ -113,7 +113,7 @@ func (s *service) Register(server *grpc.Server) {
 	RegisterStatsServiceServer(server, ss)
 
 	// For compatibility purposes
-	vCoreDesc := _StatsService_serviceDesc
+	vCoreDesc := StatsService_ServiceDesc
 	vCoreDesc.ServiceName = "v2ray.core.app.stats.command.StatsService"
 	server.RegisterService(&vCoreDesc, ss)
 }

app/stats/command/command_grpc.pb.go

@@ -11,6 +11,7 @@ import (
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
 const _ = grpc.SupportPackageIsVersion7
 
 // StatsServiceClient is the client API for StatsService service.
@@ -90,7 +91,7 @@ type UnsafeStatsServiceServer interface {
 }
 
 func RegisterStatsServiceServer(s grpc.ServiceRegistrar, srv StatsServiceServer) {
-	s.RegisterService(&_StatsService_serviceDesc, srv)
+	s.RegisterService(&StatsService_ServiceDesc, srv)
 }
 
 func _StatsService_GetStats_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
@@ -147,7 +148,10 @@ func _StatsService_GetSysStats_Handler(srv interface{}, ctx context.Context, dec
 	return interceptor(ctx, in, info, handler)
 }
 
-var _StatsService_serviceDesc = grpc.ServiceDesc{
+// StatsService_ServiceDesc is the grpc.ServiceDesc for StatsService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var StatsService_ServiceDesc = grpc.ServiceDesc{
 	ServiceName: "xray.app.stats.command.StatsService",
 	HandlerType: (*StatsServiceServer)(nil),
 	Methods: []grpc.MethodDesc{

common/buf/buffer.go

@@ -4,6 +4,7 @@ import (
 	"io"
 
 	"github.com/xtls/xray-core/common/bytespool"
+	"github.com/xtls/xray-core/common/net"
 )
 
 const (
@@ -20,6 +21,7 @@ type Buffer struct {
 	v     []byte
 	start int32
 	end   int32
+	UDP   *net.Destination
 }
 
 // New creates a Buffer with 0 length and 2K capacity.
@@ -47,6 +49,7 @@ func (b *Buffer) Release() {
 	b.v = nil
 	b.Clear()
 	pool.Put(p)
+	b.UDP = nil
 }
 
 // Clear clears the content of the buffer, results an empty buffer with

common/log/access.go

@@ -36,19 +36,23 @@ func (m *AccessMessage) String() string {
 	builder.WriteString(string(m.Status))
 	builder.WriteByte(' ')
 	builder.WriteString(serial.ToString(m.To))
-	builder.WriteByte(' ')
+
 	if len(m.Detour) > 0 {
-		builder.WriteByte('[')
+		builder.WriteString(" [")
 		builder.WriteString(m.Detour)
-		builder.WriteString("] ")
+		builder.WriteByte(']')
+	}
+
+	if reason := serial.ToString(m.Reason); len(reason) > 0 {
+		builder.WriteString(" ")
+		builder.WriteString(reason)
 	}
-	builder.WriteString(serial.ToString(m.Reason))
 
 	if len(m.Email) > 0 {
-		builder.WriteString("email:")
+		builder.WriteString(" email: ")
 		builder.WriteString(m.Email)
-		builder.WriteByte(' ')
 	}
+
 	return builder.String()
 }
 

common/net/cnc/connection.go

@@ -1,12 +1,12 @@
-package net
+package cnc
 
 import (
 	"io"
-	"net"
 	"time"
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
+	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/signal/done"
 )
 
@@ -88,8 +88,8 @@ type connection struct {
 	writer  buf.Writer
 	done    *done.Instance
 	onClose io.Closer
-	local   Addr
-	remote  Addr
+	local   net.Addr
+	remote  net.Addr
 }
 
 func (c *connection) Read(b []byte) (int, error) {

common/ocsp/errors.generated.go

@@ -1,4 +1,4 @@
-package jsonem
+package ocsp
 
 import "github.com/xtls/xray-core/common/errors"
 

common/ocsp/ocsp.go

@@ -0,0 +1,136 @@
+package ocsp
+
+import (
+	"bytes"
+	"crypto/x509"
+	"encoding/pem"
+	"io/ioutil"
+	"net/http"
+	"os"
+
+	"golang.org/x/crypto/ocsp"
+
+	"github.com/xtls/xray-core/common/platform/filesystem"
+)
+
+func GetOCSPForFile(path string) ([]byte, error) {
+	return filesystem.ReadFile(path)
+}
+
+func CheckOCSPFileIsNotExist(path string) bool {
+	_, err := os.Stat(path)
+	if err != nil {
+		return os.IsNotExist(err)
+	}
+	return false
+}
+
+func GetOCSPStapling(cert [][]byte, path string) ([]byte, error) {
+	ocspData, err := GetOCSPForFile(path)
+	if err != nil {
+		ocspData, err = GetOCSPForCert(cert)
+		if !CheckOCSPFileIsNotExist(path) {
+			err = os.Remove(path)
+			if err != nil {
+				return nil, err
+			}
+		}
+		newFile, err := os.Create(path)
+		if err != nil {
+			return nil, err
+		}
+		newFile.Write(ocspData)
+		defer newFile.Close()
+	}
+	return ocspData, nil
+}
+
+func GetOCSPForCert(cert [][]byte) ([]byte, error) {
+	bundle := new(bytes.Buffer)
+	for _, derBytes := range cert {
+		err := pem.Encode(bundle, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes})
+		if err != nil {
+			return nil, err
+		}
+	}
+	pemBundle := bundle.Bytes()
+
+	certificates, err := parsePEMBundle(pemBundle)
+
+	if err != nil {
+		return nil, err
+	}
+	issuedCert := certificates[0]
+	if len(issuedCert.OCSPServer) == 0 {
+		return nil, newError("no OCSP server specified in cert")
+	}
+	if len(certificates) == 1 {
+		if len(issuedCert.IssuingCertificateURL) == 0 {
+			return nil, newError("no issuing certificate URL")
+		}
+		resp, errC := http.Get(issuedCert.IssuingCertificateURL[0])
+		if errC != nil {
+			return nil, newError("no issuing certificate URL")
+		}
+		defer resp.Body.Close()
+
+		issuerBytes, errC := ioutil.ReadAll(resp.Body)
+		if errC != nil {
+			return nil, newError(errC)
+		}
+
+		issuerCert, errC := x509.ParseCertificate(issuerBytes)
+		if errC != nil {
+			return nil, newError(errC)
+		}
+
+		certificates = append(certificates, issuerCert)
+	}
+	issuerCert := certificates[1]
+
+	ocspReq, err := ocsp.CreateRequest(issuedCert, issuerCert, nil)
+	if err != nil {
+		return nil, err
+	}
+	reader := bytes.NewReader(ocspReq)
+	req, err := http.Post(issuedCert.OCSPServer[0], "application/ocsp-request", reader)
+	if err != nil {
+		return nil, newError(err)
+	}
+	defer req.Body.Close()
+	ocspResBytes, err := ioutil.ReadAll(req.Body)
+
+	if err != nil {
+		return nil, newError(err)
+	}
+	return ocspResBytes, nil
+
+}
+
+// parsePEMBundle parses a certificate bundle from top to bottom and returns
+// a slice of x509 certificates. This function will error if no certificates are found.
+func parsePEMBundle(bundle []byte) ([]*x509.Certificate, error) {
+	var certificates []*x509.Certificate
+	var certDERBlock *pem.Block
+
+	for {
+		certDERBlock, bundle = pem.Decode(bundle)
+		if certDERBlock == nil {
+			break
+		}
+
+		if certDERBlock.Type == "CERTIFICATE" {
+			cert, err := x509.ParseCertificate(certDERBlock.Bytes)
+			if err != nil {
+				return nil, err
+			}
+			certificates = append(certificates, cert)
+		}
+	}
+
+	if len(certificates) == 0 {
+		return nil, newError("no certificates were found while parsing the bundle")
+	}
+
+	return certificates, nil
+}

common/protocol/tls/sniff.go

@@ -102,7 +102,7 @@ func ReadClientHello(data []byte, h *SniffHeader) error {
 					return errNotClientHello
 				}
 				if nameType == 0 {
-					serverName := string(d[:nameLen])
+					serverName := strings.ToLower(string(d[:nameLen]))
 					// An SNI value may not include a
 					// trailing dot. See
 					// https://tools.ietf.org/html/rfc6066#section-3.

common/serial/string.go

@@ -8,7 +8,7 @@ import (
 // ToString serialize an arbitrary value into string.
 func ToString(v interface{}) string {
 	if v == nil {
-		return " "
+		return ""
 	}
 
 	switch value := v.(type) {

common/session/session.go

@@ -60,6 +60,7 @@ type Outbound struct {
 
 // SniffingRequest controls the behavior of content sniffing.
 type SniffingRequest struct {
+	ExcludeForDomain               []string
 	OverrideDestinationForProtocol []string
 	Enabled                        bool
 }

common/uuid/uuid.go

@@ -3,6 +3,7 @@ package uuid // import "github.com/xtls/xray-core/common/uuid"
 import (
 	"bytes"
 	"crypto/rand"
+	"crypto/sha1"
 	"encoding/hex"
 
 	"github.com/xtls/xray-core/common"
@@ -49,6 +50,8 @@ func (u *UUID) Equals(another *UUID) bool {
 func New() UUID {
 	var uuid UUID
 	common.Must2(rand.Read(uuid.Bytes()))
+	uuid[6] = (uuid[6] & 0x0f) | (4 << 4)
+	uuid[8] = (uuid[8]&(0xff>>2) | (0x02 << 6))
 	return uuid
 }
 
@@ -67,8 +70,18 @@ func ParseString(str string) (UUID, error) {
 	var uuid UUID
 
 	text := []byte(str)
-	if len(text) < 32 {
-		return uuid, errors.New("invalid UUID: ", str)
+	if l := len(text); l < 32 || l > 36 {
+		if l == 0 || l > 30 {
+			return uuid, errors.New("invalid UUID: ", str)
+		}
+		h := sha1.New()
+		h.Write(uuid[:])
+		h.Write(text)
+		u := h.Sum(nil)[:16]
+		u[6] = (u[6] & 0x0f) | (5 << 4)
+		u[8] = (u[8]&(0xff>>2) | (0x02 << 6))
+		copy(uuid[:], u)
+		return uuid, nil
 	}
 
 	b := uuid.Bytes()

common/uuid/uuid_test.go

@@ -35,9 +35,10 @@ func TestParseString(t *testing.T) {
 		t.Fatal(r)
 	}
 
-	_, err = ParseString("2418d087")
-	if err == nil {
-		t.Fatal("Expect error but nil")
+	u0, _ := ParseString("example")
+	u5, _ := ParseString("feb54431-301b-52bb-a6dd-e1e93e81bb9e")
+	if r := cmp.Diff(u0, u5); r != "" {
+		t.Fatal(r)
 	}
 
 	_, err = ParseString("2418d087-648k-4990-86e8-19dca1d006d3")

core/core.go

@@ -18,7 +18,7 @@ import (
 )
 
 var (
-	version  = "1.1.3"
+	version  = "1.2.3"
 	build    = "Custom"
 	codename = "Xray, Penetrates Everything."
 	intro    = "A unified platform for anti-censorship."

core/functions.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/net/cnc"
 	"github.com/xtls/xray-core/features/routing"
 	"github.com/xtls/xray-core/transport/internet/udp"
 )
@@ -53,13 +54,13 @@ func Dial(ctx context.Context, v *Instance, dest net.Destination) (net.Conn, err
 	if err != nil {
 		return nil, err
 	}
-	var readerOpt net.ConnectionOption
+	var readerOpt cnc.ConnectionOption
 	if dest.Network == net.Network_TCP {
-		readerOpt = net.ConnectionOutputMulti(r.Reader)
+		readerOpt = cnc.ConnectionOutputMulti(r.Reader)
 	} else {
-		readerOpt = net.ConnectionOutputMultiUDP(r.Reader)
+		readerOpt = cnc.ConnectionOutputMultiUDP(r.Reader)
 	}
-	return net.NewConnection(net.ConnectionInputMulti(r.Writer), readerOpt), nil
+	return cnc.NewConnection(cnc.ConnectionInputMulti(r.Writer), readerOpt), nil
 }
 
 // DialUDP provides a way to exchange UDP packets through Xray instance to remote servers.

core/xray.go

@@ -3,8 +3,13 @@ package core
 import (
 	"context"
 	"reflect"
+	"runtime/debug"
+	"strings"
 	"sync"
 
+	"github.com/golang/protobuf/proto"
+
+	"github.com/xtls/xray-core/app/proxyman"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/serial"
 	"github.com/xtls/xray-core/features"
@@ -179,6 +184,31 @@ func NewWithContext(ctx context.Context, config *Config) (*Instance, error) {
 }
 
 func initInstanceWithConfig(config *Config, server *Instance) (bool, error) {
+	cone := true
+	v, t := false, false
+	for _, outbound := range config.Outbound {
+		s := strings.ToLower(outbound.ProxySettings.Type)
+		l := len(s)
+		if l >= 16 && s[11:16] == "vless" || l >= 16 && s[11:16] == "vmess" {
+			v = true
+			continue
+		}
+		if l >= 17 && s[11:17] == "trojan" || l >= 22 && s[11:22] == "shadowsocks" {
+			t = true
+			var m proxyman.SenderConfig
+			proto.Unmarshal(outbound.SenderSettings.Value, &m)
+			if m.MultiplexSettings != nil && m.MultiplexSettings.Enabled {
+				cone = false
+				break
+			}
+		}
+	}
+	if v && !t {
+		cone = false
+	}
+	server.ctx = context.WithValue(server.ctx, "cone", cone)
+	defer debug.FreeOSMemory()
+
 	if config.Transport != nil {
 		features.PrintDeprecatedFeatureWarning("global transport settings")
 	}

go.mod

@@ -3,23 +3,24 @@ module github.com/xtls/xray-core
 go 1.15
 
 require (
-	github.com/dgryski/go-metro v0.0.0-20200812162917-85c65e2d0165 // indirect
+	github.com/ghodss/yaml v1.0.1-0.20190212211648-25d852aebe32
 	github.com/golang/mock v1.4.4
 	github.com/golang/protobuf v1.4.3
 	github.com/google/go-cmp v0.5.4
 	github.com/gorilla/websocket v1.4.2
 	github.com/lucas-clemente/quic-go v0.19.3
 	github.com/miekg/dns v1.1.35
-	github.com/pires/go-proxyproto v0.3.3
-	github.com/seiflotfy/cuckoofilter v0.0.0-20201009151232-afb285a456ab
-	github.com/stretchr/testify v1.6.1
+	github.com/pelletier/go-toml v1.8.1
+	github.com/pires/go-proxyproto v0.4.1
+	github.com/seiflotfy/cuckoofilter v0.0.0-20201222105146-bc6005554a0c
+	github.com/stretchr/testify v1.7.0
 	github.com/xtls/go v0.0.0-20201118062508-3632bf3b7499
-	go.starlark.net v0.0.0-20201210151846-e81fc95f7bd5
-	golang.org/x/crypto v0.0.0-20201208171446-5f87f3452ae9
-	golang.org/x/net v0.0.0-20201209123823-ac852fbbde11
+	go.starlark.net v0.0.0-20210121225809-cea917ab6e0f
+	golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad
+	golang.org/x/net v0.0.0-20210119194325-5f4716e94777
 	golang.org/x/sync v0.0.0-20201207232520-09787c993a3a
-	golang.org/x/sys v0.0.0-20201211002650-1f0c578a6b29
-	google.golang.org/grpc v1.34.0
+	golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4
+	google.golang.org/grpc v1.35.0
 	google.golang.org/protobuf v1.25.0
-	h12.io/socks v1.0.1
+	h12.io/socks v1.0.2
 )

go.sum

@@ -19,7 +19,7 @@ github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWR
 github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
 github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
-github.com/cncf/udpa/go v0.0.0-20200629203442-efcf912fb354/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
+github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
 github.com/coreos/go-systemd v0.0.0-20181012123002-c6f51f82210d/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
@@ -29,7 +29,7 @@ github.com/dgryski/go-metro v0.0.0-20200812162917-85c65e2d0165/go.mod h1:c9O8+fp
 github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
-github.com/envoyproxy/go-control-plane v0.9.7/go.mod h1:cwu0lG7PUMfa9snN8LXBig5ynNVH9qI8YYLbd1fK2po=
+github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568/go.mod h1:xEzjJPgXI435gkrCt3MPfRiAkVrwSbHsst4LCFVfpJc=
 github.com/francoispqt/gojay v1.2.13/go.mod h1:ehT5mTG4ua4581f1++1WLG0vPdaA9HaiDsoyrBGkyDY=
@@ -37,6 +37,8 @@ github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMo
 github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=
 github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
+github.com/ghodss/yaml v1.0.1-0.20190212211648-25d852aebe32 h1:Mn26/9ZMNWSw9C9ERFA1PUxfmGpolnw2v0bKOREu5ew=
+github.com/ghodss/yaml v1.0.1-0.20190212211648-25d852aebe32/go.mod h1:GIjDIg/heH5DOkXY3YJ/wNhfHsQHoXGjl8G8amsYQ1I=
 github.com/gliderlabs/ssh v0.1.1/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aevW3Awn0=
 github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
@@ -121,10 +123,12 @@ github.com/onsi/gomega v1.7.1/go.mod h1:XdKZgCCFLUoM/7CFJVPcG8C1xQ1AJ0vpAezJrB7J
 github.com/onsi/gomega v1.10.1 h1:o0+MgICZLuZ7xjH7Vx6zS/zcu93/BEp1VwkIW1mEXCE=
 github.com/onsi/gomega v1.10.1/go.mod h1:iN09h71vgCQne3DLsj+A5owkum+a2tYe+TOCB1ybHNo=
 github.com/openzipkin/zipkin-go v0.1.1/go.mod h1:NtoC/o8u3JlF1lSlyPNswIbeQH9bJTmOf0Erfk+hxe8=
+github.com/pelletier/go-toml v1.8.1 h1:1Nf83orprkJyknT6h7zbuEGUEjcyVlCxSUGTENmNCRM=
+github.com/pelletier/go-toml v1.8.1/go.mod h1:T2/BmBdy8dvIRq1a/8aqjN41wvWlN4lrapLU/GW4pbc=
 github.com/phayes/freeport v0.0.0-20180830031419-95f893ade6f2 h1:JhzVVoYvbOACxoUmOs6V/G4D5nPVUW73rKvXxP4XUJc=
 github.com/phayes/freeport v0.0.0-20180830031419-95f893ade6f2/go.mod h1:iIss55rKnNBTvrwdmkUpLnDpZoAHvWaiq5+iMmen4AE=
-github.com/pires/go-proxyproto v0.3.3 h1:jOXGrsAfSQVFiD1hWg1aiHpLYsd6SJw/8cLN594sB7Q=
-github.com/pires/go-proxyproto v0.3.3/go.mod h1:Odh9VFOZJCf9G8cLW5o435Xf1J95Jw9Gw5rnCjcwzAY=
+github.com/pires/go-proxyproto v0.4.1 h1:30QkyOjKU3FcTLiu1359sSQ7ml56wpM4i/uViqODSsI=
+github.com/pires/go-proxyproto v0.4.1/go.mod h1:Odh9VFOZJCf9G8cLW5o435Xf1J95Jw9Gw5rnCjcwzAY=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
@@ -134,8 +138,8 @@ github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:
 github.com/prometheus/common v0.0.0-20180801064454-c7de2306084e/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
 github.com/prometheus/procfs v0.0.0-20180725123919-05ee40e3a273/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
 github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
-github.com/seiflotfy/cuckoofilter v0.0.0-20201009151232-afb285a456ab h1:O43uBnD2Y6fo1oFsXY+Vqp1n3RFfxg1u3XATDGvUXgI=
-github.com/seiflotfy/cuckoofilter v0.0.0-20201009151232-afb285a456ab/go.mod h1:ET5mVvNjwaGXRgZxO9UZr7X+8eAf87AfIYNwRSp9s4Y=
+github.com/seiflotfy/cuckoofilter v0.0.0-20201222105146-bc6005554a0c h1:pqy40B3MQWYrza7YZXOXgl0Nf0QGFqrOC0BKae1UNAA=
+github.com/seiflotfy/cuckoofilter v0.0.0-20201222105146-bc6005554a0c/go.mod h1:bR6DqgcAl1zTcOX8/pE2Qkj9XO00eCNqmKb7lXP8EAg=
 github.com/sergi/go-diff v1.0.0/go.mod h1:0CfEIISq7TuYL3j771MWULgwwjU+GofnZX9QAmXWZgo=
 github.com/shurcooL/component v0.0.0-20170202220835-f88ec8f54cc4/go.mod h1:XhFIlyj5a1fBNx5aJTbKoIq0mNaPvOagO+HjB3EtxrY=
 github.com/shurcooL/events v0.0.0-20181021180414-410e4ca65f48/go.mod h1:5u70Mqkb5O5cxEA8nxTsgrgLehJeAw6Oc4Ab1c/P1HM=
@@ -167,6 +171,8 @@ github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81P
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07/go.mod h1:kDXzergiv9cbyO7IOYJZWg1U88JhDg3PB6klq9Hg2pA=
 github.com/viant/assertly v0.4.8/go.mod h1:aGifi++jvCrUaklKEKT0BU95igDNaqkvz+49uaYMPRU=
 github.com/viant/toolbox v0.24.0/go.mod h1:OxMCG57V0PXuIP2HNQrtJf2CjqdmbrOx5EkMILuUhzM=
@@ -174,8 +180,8 @@ github.com/xtls/go v0.0.0-20201118062508-3632bf3b7499 h1:QHESTXtfgc1ABV+ArlbPVqU
 github.com/xtls/go v0.0.0-20201118062508-3632bf3b7499/go.mod h1:5TB2+k58gx4A4g2Nf5miSHNDF6CuAzHKpWBooLAshTs=
 go.opencensus.io v0.18.0/go.mod h1:vKdFvxhtzZ9onBp9VKHK8z/sRpBMnKAsufL7wlDrCOA=
 go.opencensus.io v0.22.2/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
-go.starlark.net v0.0.0-20201210151846-e81fc95f7bd5 h1:F1LaLz0cvAJWMa5r3bogEYXD7/5fgA9a9jOX4DAobN8=
-go.starlark.net v0.0.0-20201210151846-e81fc95f7bd5/go.mod h1:vxxlMsgCAPH7BR2LtxjJC4WhhZhCGd/b01+CIpj8H4k=
+go.starlark.net v0.0.0-20210121225809-cea917ab6e0f h1:MfDkeyR3bphbh1zJ3Z7cTsZ8Ydd4mXQiBEhcZRltwaM=
+go.starlark.net v0.0.0-20210121225809-cea917ab6e0f/go.mod h1:vxxlMsgCAPH7BR2LtxjJC4WhhZhCGd/b01+CIpj8H4k=
 go4.org v0.0.0-20180809161055-417644f6feb5/go.mod h1:MkTOUMDaeVYJUOUsaDXIhWPZYa1yOyC1qaOBpL57BhE=
 golang.org/x/build v0.0.0-20190111050920-041ab4dc3f9d/go.mod h1:OWs+y06UdEOHN4y+MfF/py+xQ/tYqIWW03b70/CG9Rw=
 golang.org/x/crypto v0.0.0-20181030102418-4d3f4d9ffa16/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
@@ -184,8 +190,8 @@ golang.org/x/crypto v0.0.0-20190313024323-a1f597ede03a/go.mod h1:djNgcEr1/C05ACk
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200221231518-2aa609cf4a9d/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.0.0-20201208171446-5f87f3452ae9 h1:sYNJzB4J8toYPQTM6pAkcmBRgw9SnQKP9oXCHfgy604=
-golang.org/x/crypto v0.0.0-20201208171446-5f87f3452ae9/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
+golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad h1:DN0cp81fZ3njFcrLCytUHRSUkqBjfTo4Tx9RJTWs0EY=
+golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/lint v0.0.0-20180702182130-06c8688daad7/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
@@ -206,8 +212,8 @@ golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLL
 golang.org/x/net v0.0.0-20190923162816-aa69164e4478/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200520004742-59133d7f0dd7/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
 golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
-golang.org/x/net v0.0.0-20201209123823-ac852fbbde11 h1:lwlPPsmjDKK0J6eG6xDWd5XPehI0R024zxjDnw3esPA=
-golang.org/x/net v0.0.0-20201209123823-ac852fbbde11/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
+golang.org/x/net v0.0.0-20210119194325-5f4716e94777 h1:003p0dJM77cxMSyCPFphvZf/Y5/NXf5fzg6ufd1/Oew=
+golang.org/x/net v0.0.0-20210119194325-5f4716e94777/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20181017192945-9dcd33a902f4/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20181203162652-d668ce993890/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
@@ -238,8 +244,8 @@ golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200519105757-fe76b779f299/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200803210538-64077c9b5642/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20201211002650-1f0c578a6b29 h1:hAYi5mzhvBeCfkgaIHGZ8R+Q04WjSW5ZvQO3BZ94dHY=
-golang.org/x/sys v0.0.0-20201211002650-1f0c578a6b29/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4 h1:myAQVi0cGEoqQVR5POX+8RR2mrocKqNN1hmeMqhX27k=
+golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -286,8 +292,8 @@ google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiq
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
 google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
-google.golang.org/grpc v1.34.0 h1:raiipEjMOIC/TO2AvyTxP25XFdLxNIBwzDh3FM3XztI=
-google.golang.org/grpc v1.34.0/go.mod h1:WotjhfgOW/POjDeRt8vscBtXq+2VjORFy659qA51WJ8=
+google.golang.org/grpc v1.35.0 h1:TwIQcH3es+MojMVojxxfQ3l3OF2KzlRxML2xZq0kRo8=
+google.golang.org/grpc v1.35.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@@ -310,11 +316,12 @@ gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20200605160147-a5ece683394c h1:grhR+C34yXImVGp7EzNk+DTIk+323eIUWOmEevy6bDo=
+gopkg.in/yaml.v3 v3.0.0-20200605160147-a5ece683394c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 grpc.go4.org v0.0.0-20170609214715-11d0a25b4919/go.mod h1:77eQGdRu53HpSqPFJFmuJdjuHRquDANNeA4x7B8WQ9o=
-h12.io/socks v1.0.1 h1:bXESSI/+hbdrp+22vcc7/JiXjmLH4UWktKdYgGr3ShA=
-h12.io/socks v1.0.1/go.mod h1:AIhxy1jOId/XCz9BO+EIgNL2rQiPTBNnOfnVnQ+3Eck=
+h12.io/socks v1.0.2 h1:cZhhbV8+DE0Y1kotwhr1a3RC3kFO7AtuZ4GLr3qKSc8=
+h12.io/socks v1.0.2/go.mod h1:AIhxy1jOId/XCz9BO+EIgNL2rQiPTBNnOfnVnQ+3Eck=
 honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

infra/conf/dns.go

@@ -84,7 +84,7 @@ func (c *NameServerConfig) Build() (*dns.NameServer, error) {
 
 	geoipList, err := toCidrList(c.ExpectIPs)
 	if err != nil {
-		return nil, newError("invalid ip rule: ", c.ExpectIPs).Base(err)
+		return nil, newError("invalid IP rule: ", c.ExpectIPs).Base(err)
 	}
 
 	return &dns.NameServer{
@@ -142,7 +142,7 @@ func (c *DNSConfig) Build() (*dns.Config, error) {
 	for _, server := range c.Servers {
 		ns, err := server.Build()
 		if err != nil {
-			return nil, newError("failed to build name server").Base(err)
+			return nil, newError("failed to build nameserver").Base(err)
 		}
 		config.NameServer = append(config.NameServer, ns)
 	}
@@ -159,15 +159,23 @@ func (c *DNSConfig) Build() (*dns.Config, error) {
 			var mappings []*dns.Config_HostMapping
 			switch {
 			case strings.HasPrefix(domain, "domain:"):
+				domainName := domain[7:]
+				if len(domainName) == 0 {
+					return nil, newError("empty domain type of rule: ", domain)
+				}
 				mapping := getHostMapping(addr)
 				mapping.Type = dns.DomainMatchingType_Subdomain
-				mapping.Domain = domain[7:]
+				mapping.Domain = domainName
 				mappings = append(mappings, mapping)
 
 			case strings.HasPrefix(domain, "geosite:"):
-				domains, err := loadGeositeWithAttr("geosite.dat", strings.ToUpper(domain[8:]))
+				listName := domain[8:]
+				if len(listName) == 0 {
+					return nil, newError("empty geosite rule: ", domain)
+				}
+				domains, err := loadGeositeWithAttr("geosite.dat", listName)
 				if err != nil {
-					return nil, newError("invalid geosite settings: ", domain).Base(err)
+					return nil, newError("failed to load geosite: ", listName).Base(err)
 				}
 				for _, d := range domains {
 					mapping := getHostMapping(addr)
@@ -177,21 +185,33 @@ func (c *DNSConfig) Build() (*dns.Config, error) {
 				}
 
 			case strings.HasPrefix(domain, "regexp:"):
+				regexpVal := domain[7:]
+				if len(regexpVal) == 0 {
+					return nil, newError("empty regexp type of rule: ", domain)
+				}
 				mapping := getHostMapping(addr)
 				mapping.Type = dns.DomainMatchingType_Regex
-				mapping.Domain = domain[7:]
+				mapping.Domain = regexpVal
 				mappings = append(mappings, mapping)
 
 			case strings.HasPrefix(domain, "keyword:"):
+				keywordVal := domain[8:]
+				if len(keywordVal) == 0 {
+					return nil, newError("empty keyword type of rule: ", domain)
+				}
 				mapping := getHostMapping(addr)
 				mapping.Type = dns.DomainMatchingType_Keyword
-				mapping.Domain = domain[8:]
+				mapping.Domain = keywordVal
 				mappings = append(mappings, mapping)
 
 			case strings.HasPrefix(domain, "full:"):
+				fullVal := domain[5:]
+				if len(fullVal) == 0 {
+					return nil, newError("empty full domain type of rule: ", domain)
+				}
 				mapping := getHostMapping(addr)
 				mapping.Type = dns.DomainMatchingType_Full
-				mapping.Domain = domain[5:]
+				mapping.Domain = fullVal
 				mappings = append(mappings, mapping)
 
 			case strings.HasPrefix(domain, "dotless:"):
@@ -213,10 +233,10 @@ func (c *DNSConfig) Build() (*dns.Config, error) {
 					return nil, newError("invalid external resource: ", domain)
 				}
 				filename := kv[0]
-				country := kv[1]
-				domains, err := loadGeositeWithAttr(filename, country)
+				list := kv[1]
+				domains, err := loadGeositeWithAttr(filename, list)
 				if err != nil {
-					return nil, newError("failed to load domains: ", country, " from ", filename).Base(err)
+					return nil, newError("failed to load domain list: ", list, " from ", filename).Base(err)
 				}
 				for _, d := range domains {
 					mapping := getHostMapping(addr)

infra/conf/router.go

@@ -2,6 +2,7 @@ package conf
 
 import (
 	"encoding/json"
+	"runtime"
 	"strconv"
 	"strings"
 
@@ -147,46 +148,109 @@ func ParseIP(s string) (*router.CIDR, error) {
 	}
 }
 
-func loadGeoIP(country string) ([]*router.CIDR, error) {
-	return loadIP("geoip.dat", country)
+func loadGeoIP(code string) ([]*router.CIDR, error) {
+	return loadIP("geoip.dat", code)
 }
 
-func loadIP(filename, country string) ([]*router.CIDR, error) {
-	geoipBytes, err := filesystem.ReadAsset(filename)
-	if err != nil {
-		return nil, newError("failed to open file: ", filename).Base(err)
-	}
-	var geoipList router.GeoIPList
-	if err := proto.Unmarshal(geoipBytes, &geoipList); err != nil {
-		return nil, err
-	}
+var (
+	FileCache = make(map[string][]byte)
+	IPCache   = make(map[string]*router.GeoIP)
+	SiteCache = make(map[string]*router.GeoSite)
+)
 
-	for _, geoip := range geoipList.Entry {
-		if geoip.CountryCode == country {
-			return geoip.Cidr, nil
+func loadFile(file string) ([]byte, error) {
+	if FileCache[file] == nil {
+		bs, err := filesystem.ReadAsset(file)
+		if err != nil {
+			return nil, newError("failed to open file: ", file).Base(err)
 		}
+		if len(bs) == 0 {
+			return nil, newError("empty file: ", file)
+		}
+		// Do not cache file, may save RAM when there
+		// are many files, but consume CPU each time.
+		return bs, nil
+		FileCache[file] = bs
 	}
-
-	return nil, newError("country not found in ", filename, ": ", country)
+	return FileCache[file], nil
 }
 
-func loadSite(filename, country string) ([]*router.Domain, error) {
-	geositeBytes, err := filesystem.ReadAsset(filename)
-	if err != nil {
-		return nil, newError("failed to open file: ", filename).Base(err)
-	}
-	var geositeList router.GeoSiteList
-	if err := proto.Unmarshal(geositeBytes, &geositeList); err != nil {
-		return nil, err
-	}
-
-	for _, site := range geositeList.Entry {
-		if site.CountryCode == country {
-			return site.Domain, nil
+func loadIP(file, code string) ([]*router.CIDR, error) {
+	index := file + ":" + code
+	if IPCache[index] == nil {
+		bs, err := loadFile(file)
+		if err != nil {
+			return nil, newError("failed to load file: ", file).Base(err)
 		}
+		bs = find(bs, []byte(code))
+		if bs == nil {
+			return nil, newError("code not found in ", file, ": ", code)
+		}
+		var geoip router.GeoIP
+		if err := proto.Unmarshal(bs, &geoip); err != nil {
+			return nil, newError("error unmarshal IP in ", file, ": ", code).Base(err)
+		}
+		defer runtime.GC()     // or debug.FreeOSMemory()
+		return geoip.Cidr, nil // do not cache geoip
+		IPCache[index] = &geoip
 	}
+	return IPCache[index].Cidr, nil
+}
 
-	return nil, newError("list not found in ", filename, ": ", country)
+func loadSite(file, code string) ([]*router.Domain, error) {
+	index := file + ":" + code
+	if SiteCache[index] == nil {
+		bs, err := loadFile(file)
+		if err != nil {
+			return nil, newError("failed to load file: ", file).Base(err)
+		}
+		bs = find(bs, []byte(code))
+		if bs == nil {
+			return nil, newError("list not found in ", file, ": ", code)
+		}
+		var geosite router.GeoSite
+		if err := proto.Unmarshal(bs, &geosite); err != nil {
+			return nil, newError("error unmarshal Site in ", file, ": ", code).Base(err)
+		}
+		defer runtime.GC()         // or debug.FreeOSMemory()
+		return geosite.Domain, nil // do not cache geosite
+		SiteCache[index] = &geosite
+	}
+	return SiteCache[index].Domain, nil
+}
+
+func find(data, code []byte) []byte {
+	codeL := len(code)
+	if codeL == 0 {
+		return nil
+	}
+	for {
+		dataL := len(data)
+		if dataL < 2 {
+			return nil
+		}
+		x, y := proto.DecodeVarint(data[1:])
+		if x == 0 && y == 0 {
+			return nil
+		}
+		headL, bodyL := 1+y, int(x)
+		dataL -= headL
+		if dataL < bodyL {
+			return nil
+		}
+		data = data[headL:]
+		if int(data[1]) == codeL {
+			for i := 0; i < codeL && data[2+i] == code[i]; i++ {
+				if i+1 == codeL {
+					return data[:bodyL]
+				}
+			}
+		}
+		if dataL == bodyL {
+			return nil
+		}
+		data = data[bodyL:]
+	}
 }
 
 type AttributeMatcher interface {
@@ -396,6 +460,7 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 	type RawFieldRule struct {
 		RouterRule
 		Domain     *StringList  `json:"domain"`
+		Domains    *StringList  `json:"domains"`
 		IP         *StringList  `json:"ip"`
 		Port       *PortList    `json:"port"`
 		Network    *NetworkList `json:"network"`
@@ -436,6 +501,16 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 		}
 	}
 
+	if rawFieldRule.Domains != nil {
+		for _, domain := range *rawFieldRule.Domains {
+			rules, err := parseDomainRule(domain)
+			if err != nil {
+				return nil, newError("failed to parse domain rule: ", domain).Base(err)
+			}
+			rule.Domain = append(rule.Domain, rules...)
+		}
+	}
+
 	if rawFieldRule.IP != nil {
 		geoipList, err := toCidrList(*rawFieldRule.IP)
 		if err != nil {

infra/conf/serial/loader.go

@@ -4,6 +4,10 @@ import (
 	"bytes"
 	"encoding/json"
 	"io"
+	"io/ioutil"
+
+	"github.com/ghodss/yaml"
+	"github.com/pelletier/go-toml"
 
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/core"
@@ -80,3 +84,68 @@ func LoadJSONConfig(reader io.Reader) (*core.Config, error) {
 
 	return pbConfig, nil
 }
+
+// DecodeTOMLConfig reads from reader and decode the config into *conf.Config
+// using github.com/pelletier/go-toml and map to convert toml to json.
+func DecodeTOMLConfig(reader io.Reader) (*conf.Config, error) {
+	tomlFile, err := ioutil.ReadAll(reader)
+	if err != nil {
+		return nil, newError("failed to read config file").Base(err)
+	}
+
+	configMap := make(map[string]interface{})
+	if err := toml.Unmarshal(tomlFile, &configMap); err != nil {
+		return nil, newError("failed to convert toml to map").Base(err)
+	}
+
+	jsonFile, err := json.Marshal(&configMap)
+	if err != nil {
+		return nil, newError("failed to convert map to json").Base(err)
+	}
+
+	return DecodeJSONConfig(bytes.NewReader(jsonFile))
+}
+
+func LoadTOMLConfig(reader io.Reader) (*core.Config, error) {
+	tomlConfig, err := DecodeTOMLConfig(reader)
+	if err != nil {
+		return nil, err
+	}
+
+	pbConfig, err := tomlConfig.Build()
+	if err != nil {
+		return nil, newError("failed to parse toml config").Base(err)
+	}
+
+	return pbConfig, nil
+}
+
+// DecodeYAMLConfig reads from reader and decode the config into *conf.Config
+// using github.com/ghodss/yaml to convert yaml to json.
+func DecodeYAMLConfig(reader io.Reader) (*conf.Config, error) {
+	yamlFile, err := ioutil.ReadAll(reader)
+	if err != nil {
+		return nil, newError("failed to read config file").Base(err)
+	}
+
+	jsonFile, err := yaml.YAMLToJSON(yamlFile)
+	if err != nil {
+		return nil, newError("failed to convert yaml to json").Base(err)
+	}
+
+	return DecodeJSONConfig(bytes.NewReader(jsonFile))
+}
+
+func LoadYAMLConfig(reader io.Reader) (*core.Config, error) {
+	yamlConfig, err := DecodeYAMLConfig(reader)
+	if err != nil {
+		return nil, err
+	}
+
+	pbConfig, err := yamlConfig.Build()
+	if err != nil {
+		return nil, newError("failed to parse yaml config").Base(err)
+	}
+
+	return pbConfig, nil
+}

infra/conf/shadowsocks.go

@@ -33,35 +33,60 @@ func cipherFromString(c string) shadowsocks.CipherType {
 	}
 }
 
+type ShadowsocksUserConfig struct {
+	Cipher   string `json:"method"`
+	Password string `json:"password"`
+	Level    byte   `json:"level"`
+	Email    string `json:"email"`
+}
+
 type ShadowsocksServerConfig struct {
-	Cipher      string       `json:"method"`
-	Password    string       `json:"password"`
-	UDP         bool         `json:"udp"`
-	Level       byte         `json:"level"`
-	Email       string       `json:"email"`
-	NetworkList *NetworkList `json:"network"`
+	Cipher      string                   `json:"method"`
+	Password    string                   `json:"password"`
+	Level       byte                     `json:"level"`
+	Email       string                   `json:"email"`
+	Users       []*ShadowsocksUserConfig `json:"clients"`
+	NetworkList *NetworkList             `json:"network"`
 }
 
 func (v *ShadowsocksServerConfig) Build() (proto.Message, error) {
 	config := new(shadowsocks.ServerConfig)
-	config.UdpEnabled = v.UDP
 	config.Network = v.NetworkList.Build()
 
-	if v.Password == "" {
-		return nil, newError("Shadowsocks password is not specified.")
-	}
-	account := &shadowsocks.Account{
-		Password: v.Password,
-	}
-	account.CipherType = cipherFromString(v.Cipher)
-	if account.CipherType == shadowsocks.CipherType_UNKNOWN {
-		return nil, newError("unknown cipher method: ", v.Cipher)
-	}
-
-	config.User = &protocol.User{
-		Email:   v.Email,
-		Level:   uint32(v.Level),
-		Account: serial.ToTypedMessage(account),
+	if v.Users != nil {
+		for _, user := range v.Users {
+			account := &shadowsocks.Account{
+				Password:   user.Password,
+				CipherType: cipherFromString(user.Cipher),
+			}
+			if account.Password == "" {
+				return nil, newError("Shadowsocks password is not specified.")
+			}
+			if account.CipherType < 5 || account.CipherType > 7 {
+				return nil, newError("unsupported cipher method: ", user.Cipher)
+			}
+			config.Users = append(config.Users, &protocol.User{
+				Email:   user.Email,
+				Level:   uint32(user.Level),
+				Account: serial.ToTypedMessage(account),
+			})
+		}
+	} else {
+		account := &shadowsocks.Account{
+			Password:   v.Password,
+			CipherType: cipherFromString(v.Cipher),
+		}
+		if account.Password == "" {
+			return nil, newError("Shadowsocks password is not specified.")
+		}
+		if account.CipherType == shadowsocks.CipherType_UNKNOWN {
+			return nil, newError("unknown cipher method: ", v.Cipher)
+		}
+		config.Users = append(config.Users, &protocol.User{
+			Email:   v.Email,
+			Level:   uint32(v.Level),
+			Account: serial.ToTypedMessage(account),
+		})
 	}
 
 	return config, nil
@@ -73,7 +98,6 @@ type ShadowsocksServerTarget struct {
 	Cipher   string   `json:"method"`
 	Password string   `json:"password"`
 	Email    string   `json:"email"`
-	Ota      bool     `json:"ota"`
 	Level    byte     `json:"level"`
 }
 

infra/conf/shadowsocks_test.go

@@ -18,17 +18,17 @@ func TestShadowsocksServerConfigParsing(t *testing.T) {
 	runMultiTestCase(t, []TestCase{
 		{
 			Input: `{
-				"method": "aes-128-cfb",
+				"method": "aes-128-gcm",
 				"password": "xray-password"
 			}`,
 			Parser: loadJSON(creator),
 			Output: &shadowsocks.ServerConfig{
-				User: &protocol.User{
+				Users: []*protocol.User{{
 					Account: serial.ToTypedMessage(&shadowsocks.Account{
-						CipherType: shadowsocks.CipherType_AES_128_CFB,
+						CipherType: shadowsocks.CipherType_AES_128_GCM,
 						Password:   "xray-password",
 					}),
-				},
+				}},
 				Network: []net.Network{net.Network_TCP},
 			},
 		},

infra/conf/transport_internet.go

@@ -247,11 +247,12 @@ func readFileOrString(f string, s []string) ([]byte, error) {
 }
 
 type TLSCertConfig struct {
-	CertFile string   `json:"certificateFile"`
-	CertStr  []string `json:"certificate"`
-	KeyFile  string   `json:"keyFile"`
-	KeyStr   []string `json:"key"`
-	Usage    string   `json:"usage"`
+	CertFile     string   `json:"certificateFile"`
+	CertStr      []string `json:"certificate"`
+	KeyFile      string   `json:"keyFile"`
+	KeyStr       []string `json:"key"`
+	Usage        string   `json:"usage"`
+	OcspStapling int64    `json:"ocspStapling"`
 }
 
 // Build implements Buildable.
@@ -283,17 +284,22 @@ func (c *TLSCertConfig) Build() (*tls.Certificate, error) {
 		certificate.Usage = tls.Certificate_ENCIPHERMENT
 	}
 
+	certificate.OcspStapling = c.OcspStapling
+
 	return certificate, nil
 }
 
 type TLSConfig struct {
 	Insecure                 bool             `json:"allowInsecure"`
-	InsecureCiphers          bool             `json:"allowInsecureCiphers"`
 	Certs                    []*TLSCertConfig `json:"certificates"`
 	ServerName               string           `json:"serverName"`
 	ALPN                     *StringList      `json:"alpn"`
-	DisableSessionResumption bool             `json:"disableSessionResumption"`
+	EnableSessionResumption  bool             `json:"enableSessionResumption"`
 	DisableSystemRoot        bool             `json:"disableSystemRoot"`
+	MinVersion               string           `json:"minVersion"`
+	MaxVersion               string           `json:"maxVersion"`
+	CipherSuites             string           `json:"cipherSuites"`
+	PreferServerCipherSuites bool             `json:"preferServerCipherSuites"`
 }
 
 // Build implements Buildable.
@@ -309,24 +315,28 @@ func (c *TLSConfig) Build() (proto.Message, error) {
 	}
 	serverName := c.ServerName
 	config.AllowInsecure = c.Insecure
-	config.AllowInsecureCiphers = c.InsecureCiphers
 	if len(c.ServerName) > 0 {
 		config.ServerName = serverName
 	}
 	if c.ALPN != nil && len(*c.ALPN) > 0 {
 		config.NextProtocol = []string(*c.ALPN)
 	}
-	config.DisableSessionResumption = c.DisableSessionResumption
+	config.EnableSessionResumption = c.EnableSessionResumption
 	config.DisableSystemRoot = c.DisableSystemRoot
+	config.MinVersion = c.MinVersion
+	config.MaxVersion = c.MaxVersion
+	config.CipherSuites = c.CipherSuites
+	config.PreferServerCipherSuites = c.PreferServerCipherSuites
 	return config, nil
 }
 
 type XTLSCertConfig struct {
-	CertFile string   `json:"certificateFile"`
-	CertStr  []string `json:"certificate"`
-	KeyFile  string   `json:"keyFile"`
-	KeyStr   []string `json:"key"`
-	Usage    string   `json:"usage"`
+	CertFile     string   `json:"certificateFile"`
+	CertStr      []string `json:"certificate"`
+	KeyFile      string   `json:"keyFile"`
+	KeyStr       []string `json:"key"`
+	Usage        string   `json:"usage"`
+	OcspStapling int64    `json:"ocspStapling"`
 }
 
 // Build implements Buildable.
@@ -358,17 +368,22 @@ func (c *XTLSCertConfig) Build() (*xtls.Certificate, error) {
 		certificate.Usage = xtls.Certificate_ENCIPHERMENT
 	}
 
+	certificate.OcspStapling = c.OcspStapling
+
 	return certificate, nil
 }
 
 type XTLSConfig struct {
 	Insecure                 bool              `json:"allowInsecure"`
-	InsecureCiphers          bool              `json:"allowInsecureCiphers"`
 	Certs                    []*XTLSCertConfig `json:"certificates"`
 	ServerName               string            `json:"serverName"`
 	ALPN                     *StringList       `json:"alpn"`
-	DisableSessionResumption bool              `json:"disableSessionResumption"`
+	EnableSessionResumption  bool              `json:"enableSessionResumption"`
 	DisableSystemRoot        bool              `json:"disableSystemRoot"`
+	MinVersion               string            `json:"minVersion"`
+	MaxVersion               string            `json:"maxVersion"`
+	CipherSuites             string            `json:"cipherSuites"`
+	PreferServerCipherSuites bool              `json:"preferServerCipherSuites"`
 }
 
 // Build implements Buildable.
@@ -384,15 +399,18 @@ func (c *XTLSConfig) Build() (proto.Message, error) {
 	}
 	serverName := c.ServerName
 	config.AllowInsecure = c.Insecure
-	config.AllowInsecureCiphers = c.InsecureCiphers
 	if len(c.ServerName) > 0 {
 		config.ServerName = serverName
 	}
 	if c.ALPN != nil && len(*c.ALPN) > 0 {
 		config.NextProtocol = []string(*c.ALPN)
 	}
-	config.DisableSessionResumption = c.DisableSessionResumption
+	config.EnableSessionResumption = c.EnableSessionResumption
 	config.DisableSystemRoot = c.DisableSystemRoot
+	config.MinVersion = c.MinVersion
+	config.MaxVersion = c.MaxVersion
+	config.CipherSuites = c.CipherSuites
+	config.PreferServerCipherSuites = c.PreferServerCipherSuites
 	return config, nil
 }
 

infra/conf/trojan.go

@@ -52,6 +52,17 @@ func (c *TrojanClientConfig) Build() (proto.Message, error) {
 			Password: rec.Password,
 			Flow:     rec.Flow,
 		}
+
+		switch account.Flow {
+		case "", "xtls-rprx-origin", "xtls-rprx-origin-udp443", "xtls-rprx-direct", "xtls-rprx-direct-udp443":
+		case "xtls-rprx-splice", "xtls-rprx-splice-udp443":
+			if runtime.GOOS != "linux" && runtime.GOOS != "android" {
+				return nil, newError(`Trojan servers: "` + account.Flow + `" only support linux in this version`)
+			}
+		default:
+			return nil, newError(`Trojan servers: "flow" doesn't support "` + account.Flow + `" in this version`)
+		}
+
 		trojan := &protocol.ServerEndpoint{
 			Address: rec.Address.Build(),
 			Port:    uint32(rec.Port),
@@ -74,6 +85,7 @@ func (c *TrojanClientConfig) Build() (proto.Message, error) {
 
 // TrojanInboundFallback is fallback configuration
 type TrojanInboundFallback struct {
+	Name string          `json:"name"`
 	Alpn string          `json:"alpn"`
 	Path string          `json:"path"`
 	Type string          `json:"type"`
@@ -107,6 +119,14 @@ func (c *TrojanServerConfig) Build() (proto.Message, error) {
 			Flow:     rawUser.Flow,
 		}
 
+		switch account.Flow {
+		case "", "xtls-rprx-origin", "xtls-rprx-direct":
+		case "xtls-rprx-splice":
+			return nil, newError(`Trojan clients: inbound doesn't support "xtls-rprx-splice" in this version, please use "xtls-rprx-direct" instead`)
+		default:
+			return nil, newError(`Trojan clients: "flow" doesn't support "` + account.Flow + `" in this version`)
+		}
+
 		user.Email = rawUser.Email
 		user.Level = uint32(rawUser.Level)
 		user.Account = serial.ToTypedMessage(account)
@@ -125,6 +145,7 @@ func (c *TrojanServerConfig) Build() (proto.Message, error) {
 			_ = json.Unmarshal(fb.Dest, &s)
 		}
 		config.Fallbacks = append(config.Fallbacks, &trojan.Fallback{
+			Name: fb.Name,
 			Alpn: fb.Alpn,
 			Path: fb.Path,
 			Type: fb.Type,
@@ -148,7 +169,7 @@ func (c *TrojanServerConfig) Build() (proto.Message, error) {
 				switch fb.Dest[0] {
 				case '@', '/':
 					fb.Type = "unix"
-					if fb.Dest[0] == '@' && len(fb.Dest) > 1 && fb.Dest[1] == '@' && runtime.GOOS == "linux" {
+					if fb.Dest[0] == '@' && len(fb.Dest) > 1 && fb.Dest[1] == '@' && (runtime.GOOS == "linux" || runtime.GOOS == "android") {
 						fullAddr := make([]byte, len(syscall.RawSockaddrUnix{}.Path)) // may need padding to work with haproxy
 						copy(fullAddr, fb.Dest[1:])
 						fb.Dest = string(fullAddr)

infra/conf/vless.go

@@ -11,12 +11,14 @@ import (
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/common/serial"
+	"github.com/xtls/xray-core/common/uuid"
 	"github.com/xtls/xray-core/proxy/vless"
 	"github.com/xtls/xray-core/proxy/vless/inbound"
 	"github.com/xtls/xray-core/proxy/vless/outbound"
 )
 
 type VLessInboundFallback struct {
+	Name string          `json:"name"`
 	Alpn string          `json:"alpn"`
 	Path string          `json:"path"`
 	Type string          `json:"type"`
@@ -45,6 +47,12 @@ func (c *VLessInboundConfig) Build() (proto.Message, error) {
 			return nil, newError(`VLESS clients: invalid user`).Base(err)
 		}
 
+		u, err := uuid.ParseString(account.Id)
+		if err != nil {
+			return nil, err
+		}
+		account.Id = u.String()
+
 		switch account.Flow {
 		case "", "xtls-rprx-origin", "xtls-rprx-direct":
 		case "xtls-rprx-splice":
@@ -78,6 +86,7 @@ func (c *VLessInboundConfig) Build() (proto.Message, error) {
 			_ = json.Unmarshal(fb.Dest, &s)
 		}
 		config.Fallbacks = append(config.Fallbacks, &inbound.Fallback{
+			Name: fb.Name,
 			Alpn: fb.Alpn,
 			Path: fb.Path,
 			Type: fb.Type,
@@ -101,7 +110,7 @@ func (c *VLessInboundConfig) Build() (proto.Message, error) {
 				switch fb.Dest[0] {
 				case '@', '/':
 					fb.Type = "unix"
-					if fb.Dest[0] == '@' && len(fb.Dest) > 1 && fb.Dest[1] == '@' && runtime.GOOS == "linux" {
+					if fb.Dest[0] == '@' && len(fb.Dest) > 1 && fb.Dest[1] == '@' && (runtime.GOOS == "linux" || runtime.GOOS == "android") {
 						fullAddr := make([]byte, len(syscall.RawSockaddrUnix{}.Path)) // may need padding to work with haproxy
 						copy(fullAddr, fb.Dest[1:])
 						fb.Dest = string(fullAddr)
@@ -167,6 +176,12 @@ func (c *VLessOutboundConfig) Build() (proto.Message, error) {
 				return nil, newError(`VLESS users: invalid user`).Base(err)
 			}
 
+			u, err := uuid.ParseString(account.Id)
+			if err != nil {
+				return nil, err
+			}
+			account.Id = u.String()
+
 			switch account.Flow {
 			case "", "xtls-rprx-origin", "xtls-rprx-origin-udp443", "xtls-rprx-direct", "xtls-rprx-direct-udp443":
 			case "xtls-rprx-splice", "xtls-rprx-splice-udp443":

infra/conf/vmess.go

@@ -8,6 +8,7 @@ import (
 
 	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/common/serial"
+	"github.com/xtls/xray-core/common/uuid"
 	"github.com/xtls/xray-core/proxy/vmess"
 	"github.com/xtls/xray-core/proxy/vmess/inbound"
 	"github.com/xtls/xray-core/proxy/vmess/outbound"
@@ -105,6 +106,13 @@ func (c *VMessInboundConfig) Build() (proto.Message, error) {
 		if err := json.Unmarshal(rawData, account); err != nil {
 			return nil, newError("invalid VMess user").Base(err)
 		}
+
+		u, err := uuid.ParseString(account.ID)
+		if err != nil {
+			return nil, err
+		}
+		account.ID = u.String()
+
 		user.Account = serial.ToTypedMessage(account.Build())
 		config.User[idx] = user
 	}
@@ -149,6 +157,13 @@ func (c *VMessOutboundConfig) Build() (proto.Message, error) {
 			if err := json.Unmarshal(rawUser, account); err != nil {
 				return nil, newError("invalid VMess user").Base(err)
 			}
+
+			u, err := uuid.ParseString(account.ID)
+			if err != nil {
+				return nil, err
+			}
+			account.ID = u.String()
+
 			user.Account = serial.ToTypedMessage(account.Build())
 			spec.User = append(spec.User, user)
 		}

infra/conf/xray.go

@@ -58,29 +58,38 @@ func toProtocolList(s []string) ([]proxyman.KnownProtocols, error) {
 }
 
 type SniffingConfig struct {
-	Enabled      bool        `json:"enabled"`
-	DestOverride *StringList `json:"destOverride"`
+	Enabled         bool        `json:"enabled"`
+	DestOverride    *StringList `json:"destOverride"`
+	DomainsExcluded *StringList `json:"domainsExcluded"`
 }
 
 // Build implements Buildable.
 func (c *SniffingConfig) Build() (*proxyman.SniffingConfig, error) {
 	var p []string
 	if c.DestOverride != nil {
-		for _, domainOverride := range *c.DestOverride {
-			switch strings.ToLower(domainOverride) {
+		for _, protocol := range *c.DestOverride {
+			switch strings.ToLower(protocol) {
 			case "http":
 				p = append(p, "http")
 			case "tls", "https", "ssl":
 				p = append(p, "tls")
 			default:
-				return nil, newError("unknown protocol: ", domainOverride)
+				return nil, newError("unknown protocol: ", protocol)
 			}
 		}
 	}
 
+	var d []string
+	if c.DomainsExcluded != nil {
+		for _, domain := range *c.DomainsExcluded {
+			d = append(d, strings.ToLower(domain))
+		}
+	}
+
 	return &proxyman.SniffingConfig{
 		Enabled:             c.Enabled,
 		DestinationOverride: p,
+		DomainsExcluded:     d,
 	}, nil
 }
 

main/commands/all/uuid.go

@@ -8,15 +8,33 @@ import (
 )
 
 var cmdUUID = &base.Command{
-	UsageLine: "{{.Exec}} uuid",
-	Short:     "Generate new UUIDs",
+	UsageLine: `{{.Exec}} uuid [-i "example"]`,
+	Short:     `Generate UUIDv4 or UUIDv5`,
 	Long: `
-Generate new UUIDs.
-	`,
-	Run: executeUUID,
+Generate UUIDv4 or UUIDv5.
+
+UUIDv4 (random): {{.Exec}} uuid
+
+UUIDv5 (from input): {{.Exec}} uuid -i "example"
+`,
 }
 
-func executeUUID(cmd *base.Command, args []string) {
-	u := uuid.New()
-	fmt.Println(u.String())
+func init() {
+	cmdUUID.Run = executeUUID // break init loop
+}
+
+var input = cmdUUID.Flag.String("i", "", "")
+
+func executeUUID(cmd *base.Command, args []string) {
+	var output string
+	if l := len(*input); l == 0 {
+		u := uuid.New()
+		output = u.String()
+	} else if l <= 30 {
+		u, _ := uuid.ParseString(*input)
+		output = u.String()
+	} else {
+		output = "Input must be within 30 bytes."
+	}
+	fmt.Println(output)
 }

main/distro/all/all.go

@@ -57,15 +57,14 @@ import (
 	_ "github.com/xtls/xray-core/transport/internet/headers/wechat"
 	_ "github.com/xtls/xray-core/transport/internet/headers/wireguard"
 
-	// JSON config support. Choose only one from the two below.
-	// The following line loads JSON from xctl
-	// _ "github.com/xtls/xray-core/main/json"
-	// The following line loads JSON internally
-	_ "github.com/xtls/xray-core/main/jsonem"
+	// JSON & TOML & YAML
+	_ "github.com/xtls/xray-core/main/json"
+	_ "github.com/xtls/xray-core/main/toml"
+	_ "github.com/xtls/xray-core/main/yaml"
 
 	// Load config from file or http(s)
 	_ "github.com/xtls/xray-core/main/confloader/external"
 
-	// commands
+	// Commands
 	_ "github.com/xtls/xray-core/main/commands/all"
 )

main/json/config_json.go

@@ -1,38 +0,0 @@
-package json
-
-//go:generate go run github.com/xtls/xray-core/common/errors/errorgen
-
-import (
-	"io"
-	"os"
-
-	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/cmdarg"
-	core "github.com/xtls/xray-core/core"
-	"github.com/xtls/xray-core/main/confloader"
-)
-
-func init() {
-	common.Must(core.RegisterConfigLoader(&core.ConfigFormat{
-		Name:      "JSON",
-		Extension: []string{"json"},
-		Loader: func(input interface{}) (*core.Config, error) {
-			switch v := input.(type) {
-			case cmdarg.Arg:
-				r, err := confloader.LoadExtConfig(v, os.Stdin)
-				if err != nil {
-					return nil, newError("failed to execute xctl to convert config file.").Base(err).AtWarning()
-				}
-				return core.LoadConfig("protobuf", "", r)
-			case io.Reader:
-				r, err := confloader.LoadExtConfig([]string{"stdin:"}, os.Stdin)
-				if err != nil {
-					return nil, newError("failed to execute xctl to convert config file.").Base(err).AtWarning()
-				}
-				return core.LoadConfig("protobuf", "", r)
-			default:
-				return nil, newError("unknown type")
-			}
-		},
-	}))
-}

main/json/json.go

@@ -1,4 +1,4 @@
-package jsonem
+package json
 
 import (
 	"io"
@@ -22,9 +22,13 @@ func init() {
 				for i, arg := range v {
 					newError("Reading config: ", arg).AtInfo().WriteToLog()
 					r, err := confloader.LoadConfig(arg)
-					common.Must(err)
+					if err != nil {
+						return nil, newError("failed to read config: ", arg).Base(err)
+					}
 					c, err := serial.DecodeJSONConfig(r)
-					common.Must(err)
+					if err != nil {
+						return nil, newError("failed to decode config: ", arg).Base(err)
+					}
 					if i == 0 {
 						// This ensure even if the muti-json parser do not support a setting,
 						// It is still respected automatically for the first configure file

main/run.go

@@ -8,13 +8,16 @@ import (
 	"os/signal"
 	"path"
 	"path/filepath"
+	"regexp"
 	"runtime"
+	"runtime/debug"
 	"strings"
 	"syscall"
 
 	"github.com/xtls/xray-core/common/cmdarg"
 	"github.com/xtls/xray-core/common/platform"
 	"github.com/xtls/xray-core/core"
+	"github.com/xtls/xray-core/infra/conf"
 	"github.com/xtls/xray-core/main/commands/base"
 )
 
@@ -64,22 +67,29 @@ func executeRun(cmd *base.Command, args []string) {
 	printVersion()
 	server, err := startXray()
 	if err != nil {
-		base.Fatalf("Failed to start: %s", err)
+		fmt.Println("Failed to start:", err)
+		// Configuration error. Exit with a special value to prevent systemd from restarting.
+		os.Exit(23)
 	}
 
 	if *test {
 		fmt.Println("Configuration OK.")
-		base.SetExitStatus(0)
-		base.Exit()
+		os.Exit(0)
 	}
 
 	if err := server.Start(); err != nil {
-		base.Fatalf("Failed to start: %s", err)
+		fmt.Println("Failed to start:", err)
+		os.Exit(-1)
 	}
 	defer server.Close()
 
+	conf.FileCache = nil
+	conf.IPCache = nil
+	conf.SiteCache = nil
+
 	// Explicitly triggering GC to remove garbage from config loading.
 	runtime.GC()
+	debug.FreeOSMemory()
 
 	{
 		osSignals := make(chan os.Signal, 1)
@@ -107,7 +117,11 @@ func readConfDir(dirPath string) {
 		log.Fatalln(err)
 	}
 	for _, f := range confs {
-		if strings.HasSuffix(f.Name(), ".json") {
+		matched, err := regexp.MatchString(`^.+\.(json|toml|yaml|yml)$`, f.Name())
+		if err != nil {
+			log.Fatalln(err)
+		}
+		if matched {
 			configFiles.Set(path.Join(dirPath, f.Name()))
 		}
 	}
@@ -147,6 +161,10 @@ func getConfigFormat() string {
 	switch strings.ToLower(*format) {
 	case "pb", "protobuf":
 		return "protobuf"
+	case "yaml", "yml":
+		return "yaml"
+	case "toml":
+		return "toml"
 	default:
 		return "json"
 	}
@@ -156,8 +174,11 @@ func startXray() (core.Server, error) {
 	configFiles := getConfigFilePath()
 
 	config, err := core.LoadConfig(getConfigFormat(), configFiles[0], configFiles)
+
+	//config, err := core.LoadConfigs(getConfigFormat(), configFiles)
+
 	if err != nil {
-		return nil, newError("failed to read config files: [", configFiles.String(), "]").Base(err)
+		return nil, newError("failed to load config files: [", configFiles.String(), "]").Base(err)
 	}
 
 	server, err := core.New(config)

main/toml/errors.generated.go

@@ -0,0 +1,9 @@
+package toml
+
+import "github.com/xtls/xray-core/common/errors"
+
+type errPathObjHolder struct{}
+
+func newError(values ...interface{}) *errors.Error {
+	return errors.New(values...).WithPathObj(errPathObjHolder{})
+}

main/toml/toml.go

@@ -0,0 +1,48 @@
+package toml
+
+import (
+	"io"
+
+	"github.com/xtls/xray-core/common"
+	"github.com/xtls/xray-core/common/cmdarg"
+	"github.com/xtls/xray-core/core"
+	"github.com/xtls/xray-core/infra/conf"
+	"github.com/xtls/xray-core/infra/conf/serial"
+	"github.com/xtls/xray-core/main/confloader"
+)
+
+func init() {
+	common.Must(core.RegisterConfigLoader(&core.ConfigFormat{
+		Name:      "TOML",
+		Extension: []string{"toml"},
+		Loader: func(input interface{}) (*core.Config, error) {
+			switch v := input.(type) {
+			case cmdarg.Arg:
+				cf := &conf.Config{}
+				for i, arg := range v {
+					newError("Reading config: ", arg).AtInfo().WriteToLog()
+					r, err := confloader.LoadConfig(arg)
+					if err != nil {
+						return nil, newError("failed to read config: ", arg).Base(err)
+					}
+					c, err := serial.DecodeTOMLConfig(r)
+					if err != nil {
+						return nil, newError("failed to decode config: ", arg).Base(err)
+					}
+					if i == 0 {
+						// This ensure even if the muti-json parser do not support a setting,
+						// It is still respected automatically for the first configure file
+						*cf = *c
+						continue
+					}
+					cf.Override(c, arg)
+				}
+				return cf.Build()
+			case io.Reader:
+				return serial.LoadTOMLConfig(v)
+			default:
+				return nil, newError("unknow type")
+			}
+		},
+	}))
+}

main/yaml/errors.generated.go

@@ -0,0 +1,9 @@
+package yaml
+
+import "github.com/xtls/xray-core/common/errors"
+
+type errPathObjHolder struct{}
+
+func newError(values ...interface{}) *errors.Error {
+	return errors.New(values...).WithPathObj(errPathObjHolder{})
+}

main/yaml/yaml.go

@@ -0,0 +1,48 @@
+package yaml
+
+import (
+	"io"
+
+	"github.com/xtls/xray-core/common"
+	"github.com/xtls/xray-core/common/cmdarg"
+	"github.com/xtls/xray-core/core"
+	"github.com/xtls/xray-core/infra/conf"
+	"github.com/xtls/xray-core/infra/conf/serial"
+	"github.com/xtls/xray-core/main/confloader"
+)
+
+func init() {
+	common.Must(core.RegisterConfigLoader(&core.ConfigFormat{
+		Name:      "YAML",
+		Extension: []string{"yaml", "yml"},
+		Loader: func(input interface{}) (*core.Config, error) {
+			switch v := input.(type) {
+			case cmdarg.Arg:
+				cf := &conf.Config{}
+				for i, arg := range v {
+					newError("Reading config: ", arg).AtInfo().WriteToLog()
+					r, err := confloader.LoadConfig(arg)
+					if err != nil {
+						return nil, newError("failed to read config: ", arg).Base(err)
+					}
+					c, err := serial.DecodeYAMLConfig(r)
+					if err != nil {
+						return nil, newError("failed to decode config: ", arg).Base(err)
+					}
+					if i == 0 {
+						// This ensure even if the muti-json parser do not support a setting,
+						// It is still respected automatically for the first configure file
+						*cf = *c
+						continue
+					}
+					cf.Override(c, arg)
+				}
+				return cf.Build()
+			case io.Reader:
+				return serial.LoadYAMLConfig(v)
+			default:
+				return nil, newError("unknow type")
+			}
+		},
+	}))
+}

proxy/dokodemo/dokodemo.go

@@ -163,36 +163,60 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn in
 		if !destinationOverridden {
 			writer = &buf.SequentialWriter{Writer: conn}
 		} else {
-			sockopt := &internet.SocketConfig{
-				Tproxy: internet.SocketConfig_TProxy,
+			back := conn.RemoteAddr().(*net.UDPAddr)
+			if !dest.Address.Family().IsIP() {
+				if len(back.IP) == 4 {
+					dest.Address = net.AnyIP
+				} else {
+					dest.Address = net.AnyIPv6
+				}
 			}
-			if dest.Address.Family().IsIP() {
-				sockopt.BindAddress = dest.Address.IP()
-				sockopt.BindPort = uint32(dest.Port)
+			addr := &net.UDPAddr{
+				IP:   dest.Address.IP(),
+				Port: int(dest.Port),
 			}
+			var mark int
 			if d.sockopt != nil {
-				sockopt.Mark = d.sockopt.Mark
+				mark = int(d.sockopt.Mark)
 			}
-			tConn, err := internet.DialSystem(ctx, net.DestinationFromAddr(conn.RemoteAddr()), sockopt)
+			pConn, err := FakeUDP(addr, mark)
 			if err != nil {
 				return err
 			}
-			defer tConn.Close()
-
-			writer = &buf.SequentialWriter{Writer: tConn}
-			tReader := buf.NewPacketReader(tConn)
-			requestCount++
-			tproxyRequest = func() error {
-				defer func() {
-					if atomic.AddInt32(&requestCount, -1) == 0 {
-						timer.SetTimeout(plcy.Timeouts.DownlinkOnly)
-					}
-				}()
-				if err := buf.Copy(tReader, link.Writer, buf.UpdateActivity(timer)); err != nil {
-					return newError("failed to transport request (TPROXY conn)").Base(err)
+			writer = NewPacketWriter(pConn, &dest, mark, back)
+			defer writer.(*PacketWriter).Close()
+			/*
+				sockopt := &internet.SocketConfig{
+					Tproxy: internet.SocketConfig_TProxy,
 				}
-				return nil
-			}
+				if dest.Address.Family().IsIP() {
+					sockopt.BindAddress = dest.Address.IP()
+					sockopt.BindPort = uint32(dest.Port)
+				}
+				if d.sockopt != nil {
+					sockopt.Mark = d.sockopt.Mark
+				}
+				tConn, err := internet.DialSystem(ctx, net.DestinationFromAddr(conn.RemoteAddr()), sockopt)
+				if err != nil {
+					return err
+				}
+				defer tConn.Close()
+
+				writer = &buf.SequentialWriter{Writer: tConn}
+				tReader := buf.NewPacketReader(tConn)
+				requestCount++
+				tproxyRequest = func() error {
+					defer func() {
+						if atomic.AddInt32(&requestCount, -1) == 0 {
+							timer.SetTimeout(plcy.Timeouts.DownlinkOnly)
+						}
+					}()
+					if err := buf.Copy(tReader, link.Writer, buf.UpdateActivity(timer)); err != nil {
+						return newError("failed to transport request (TPROXY conn)").Base(err)
+					}
+					return nil
+				}
+			*/
 		}
 	}
 
@@ -215,3 +239,74 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn in
 
 	return nil
 }
+
+func NewPacketWriter(conn net.PacketConn, d *net.Destination, mark int, back *net.UDPAddr) buf.Writer {
+	writer := &PacketWriter{
+		conn:  conn,
+		conns: make(map[net.Destination]net.PacketConn),
+		mark:  mark,
+		back:  back,
+	}
+	writer.conns[*d] = conn
+	return writer
+}
+
+type PacketWriter struct {
+	conn  net.PacketConn
+	conns map[net.Destination]net.PacketConn
+	mark  int
+	back  *net.UDPAddr
+}
+
+func (w *PacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
+	for {
+		mb2, b := buf.SplitFirst(mb)
+		mb = mb2
+		if b == nil {
+			break
+		}
+		var err error
+		if b.UDP != nil && b.UDP.Address.Family().IsIP() {
+			conn := w.conns[*b.UDP]
+			if conn == nil {
+				conn, err = FakeUDP(
+					&net.UDPAddr{
+						IP:   b.UDP.Address.IP(),
+						Port: int(b.UDP.Port),
+					},
+					w.mark,
+				)
+				if err != nil {
+					newError(err).WriteToLog()
+					b.Release()
+					continue
+				}
+				w.conns[*b.UDP] = conn
+			}
+			_, err = conn.WriteTo(b.Bytes(), w.back)
+			if err != nil {
+				newError(err).WriteToLog()
+				w.conns[*b.UDP] = nil
+				conn.Close()
+			}
+			b.Release()
+		} else {
+			_, err = w.conn.WriteTo(b.Bytes(), w.back)
+			b.Release()
+			if err != nil {
+				buf.ReleaseMulti(mb)
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+func (w *PacketWriter) Close() error {
+	for _, conn := range w.conns {
+		if conn != nil {
+			conn.Close()
+		}
+	}
+	return nil
+}

proxy/dokodemo/fakeudp_linux.go

@@ -0,0 +1,66 @@
+// +build linux
+
+package dokodemo
+
+import (
+	"fmt"
+	"net"
+	"os"
+	"syscall"
+
+	"golang.org/x/sys/unix"
+)
+
+func FakeUDP(addr *net.UDPAddr, mark int) (net.PacketConn, error) {
+	var af int
+	var sockaddr syscall.Sockaddr
+
+	if len(addr.IP) == 4 {
+		af = syscall.AF_INET
+		sockaddr = &syscall.SockaddrInet4{Port: addr.Port}
+		copy(sockaddr.(*syscall.SockaddrInet4).Addr[:], addr.IP)
+	} else {
+		af = syscall.AF_INET6
+		sockaddr = &syscall.SockaddrInet6{Port: addr.Port}
+		copy(sockaddr.(*syscall.SockaddrInet6).Addr[:], addr.IP)
+	}
+
+	var fd int
+	var err error
+
+	if fd, err = syscall.Socket(af, syscall.SOCK_DGRAM, 0); err != nil {
+		return nil, &net.OpError{Op: "fake", Err: fmt.Errorf("socket open: %s", err)}
+	}
+
+	if mark != 0 {
+		if err = syscall.SetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_MARK, mark); err != nil {
+			syscall.Close(fd)
+			return nil, &net.OpError{Op: "fake", Err: fmt.Errorf("set socket option: SO_MARK: %s", err)}
+		}
+	}
+
+	if err = syscall.SetsockoptInt(fd, syscall.SOL_IP, syscall.IP_TRANSPARENT, 1); err != nil {
+		syscall.Close(fd)
+		return nil, &net.OpError{Op: "fake", Err: fmt.Errorf("set socket option: IP_TRANSPARENT: %s", err)}
+	}
+
+	syscall.SetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_REUSEADDR, 1)
+
+	syscall.SetsockoptInt(fd, syscall.SOL_SOCKET, unix.SO_REUSEPORT, 1)
+
+	if err = syscall.Bind(fd, sockaddr); err != nil {
+		syscall.Close(fd)
+		return nil, &net.OpError{Op: "fake", Err: fmt.Errorf("socket bind: %s", err)}
+	}
+
+	fdFile := os.NewFile(uintptr(fd), fmt.Sprintf("net-udp-fake-%s", addr.String()))
+	defer fdFile.Close()
+
+	packetConn, err := net.FilePacketConn(fdFile)
+	if err != nil {
+		syscall.Close(fd)
+		return nil, &net.OpError{Op: "fake", Err: fmt.Errorf("convert file descriptor to connection: %s", err)}
+	}
+
+	return packetConn, nil
+}

proxy/dokodemo/fakeudp_other.go

@@ -0,0 +1,12 @@
+// +build !linux
+
+package dokodemo
+
+import (
+	"fmt"
+	"net"
+)
+
+func FakeUDP(addr *net.UDPAddr, mark int) (net.PacketConn, error) {
+	return nil, &net.OpError{Op: "fake", Err: fmt.Errorf("!linux")}
+}

proxy/freedom/freedom.go

@@ -17,6 +17,7 @@ import (
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/dns"
 	"github.com/xtls/xray-core/features/policy"
+	"github.com/xtls/xray-core/features/stats"
 	"github.com/xtls/xray-core/transport"
 	"github.com/xtls/xray-core/transport/internet"
 )
@@ -148,7 +149,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 		if destination.Network == net.Network_TCP {
 			writer = buf.NewWriter(conn)
 		} else {
-			writer = &buf.SequentialWriter{Writer: conn}
+			writer = NewPacketWriter(conn, h, ctx)
 		}
 
 		if err := buf.Copy(input, writer, buf.UpdateActivity(timer)); err != nil {
@@ -165,7 +166,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 		if destination.Network == net.Network_TCP {
 			reader = buf.NewReader(conn)
 		} else {
-			reader = buf.NewPacketReader(conn)
+			reader = NewPacketReader(conn)
 		}
 		if err := buf.Copy(reader, output, buf.UpdateActivity(timer)); err != nil {
 			return newError("failed to process response").Base(err)
@@ -180,3 +181,112 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 
 	return nil
 }
+
+func NewPacketReader(conn net.Conn) buf.Reader {
+	iConn := conn
+	statConn, ok := iConn.(*internet.StatCouterConnection)
+	if ok {
+		iConn = statConn.Connection
+	}
+	var counter stats.Counter
+	if statConn != nil {
+		counter = statConn.ReadCounter
+	}
+	if c, ok := iConn.(*internet.PacketConnWrapper); ok {
+		return &PacketReader{
+			PacketConnWrapper: c,
+			Counter:           counter,
+		}
+	}
+	return &buf.PacketReader{Reader: conn}
+}
+
+type PacketReader struct {
+	*internet.PacketConnWrapper
+	stats.Counter
+}
+
+func (r *PacketReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
+	b := buf.New()
+	b.Resize(0, buf.Size)
+	n, d, err := r.PacketConnWrapper.ReadFrom(b.Bytes())
+	if err != nil {
+		b.Release()
+		return nil, err
+	}
+	b.Resize(0, int32(n))
+	b.UDP = &net.Destination{
+		Address: net.IPAddress(d.(*net.UDPAddr).IP),
+		Port:    net.Port(d.(*net.UDPAddr).Port),
+		Network: net.Network_UDP,
+	}
+	if r.Counter != nil {
+		r.Counter.Add(int64(n))
+	}
+	return buf.MultiBuffer{b}, nil
+}
+
+func NewPacketWriter(conn net.Conn, h *Handler, ctx context.Context) buf.Writer {
+	iConn := conn
+	statConn, ok := iConn.(*internet.StatCouterConnection)
+	if ok {
+		iConn = statConn.Connection
+	}
+	var counter stats.Counter
+	if statConn != nil {
+		counter = statConn.WriteCounter
+	}
+	if c, ok := iConn.(*internet.PacketConnWrapper); ok {
+		return &PacketWriter{
+			PacketConnWrapper: c,
+			Counter:           counter,
+			Handler:           h,
+			Context:           ctx,
+		}
+	}
+	return &buf.SequentialWriter{Writer: conn}
+}
+
+type PacketWriter struct {
+	*internet.PacketConnWrapper
+	stats.Counter
+	*Handler
+	context.Context
+}
+
+func (w *PacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
+	for {
+		mb2, b := buf.SplitFirst(mb)
+		mb = mb2
+		if b == nil {
+			break
+		}
+		var n int
+		var err error
+		if b.UDP != nil {
+			if w.Handler.config.useIP() && b.UDP.Address.Family().IsDomain() {
+				ip := w.Handler.resolveIP(w.Context, b.UDP.Address.Domain(), nil)
+				if ip != nil {
+					b.UDP.Address = ip
+				}
+			}
+			destAddr, _ := net.ResolveUDPAddr("udp", b.UDP.NetAddr())
+			if destAddr == nil {
+				b.Release()
+				continue
+			}
+			n, err = w.PacketConnWrapper.WriteTo(b.Bytes(), destAddr)
+		} else {
+			n, err = w.PacketConnWrapper.Write(b.Bytes())
+		}
+		b.Release()
+		if err != nil {
+			buf.ReleaseMulti(mb)
+			return err
+		}
+		if w.Counter != nil {
+			w.Counter.Add(int64(n))
+		}
+	}
+	return nil
+}

proxy/http/client.go

@@ -168,6 +168,7 @@ func setUpHTTPTunnel(ctx context.Context, dest net.Destination, target string, u
 			rawConn.Close()
 			return nil, err
 		}
+		defer resp.Body.Close()
 
 		if resp.StatusCode != http.StatusOK {
 			rawConn.Close()

proxy/http/server.go

@@ -293,6 +293,7 @@ func (s *Server) handlePlainHTTP(ctx context.Context, request *http.Request, wri
 				response.Close = true
 				result = nil
 			}
+			defer response.Body.Close()
 		} else {
 			newError("failed to read response from ", request.Host).Base(err).AtWarning().WriteToLog(session.ExportIDToError(ctx))
 			response = &http.Response{

proxy/shadowsocks/client.go

@@ -134,14 +134,15 @@ func (c *Client) Process(ctx context.Context, link *transport.Link, dialer inter
 	}
 
 	if request.Command == protocol.RequestCommandUDP {
-		writer := &buf.SequentialWriter{Writer: &UDPWriter{
-			Writer:  conn,
-			Request: request,
-		}}
 
 		requestDone := func() error {
 			defer timer.SetTimeout(sessionPolicy.Timeouts.DownlinkOnly)
 
+			writer := &UDPWriter{
+				Writer:  conn,
+				Request: request,
+			}
+
 			if err := buf.Copy(link.Reader, writer, buf.UpdateActivity(timer)); err != nil {
 				return newError("failed to transport all UDP request").Base(err)
 			}

proxy/shadowsocks/config.pb.go

@@ -154,13 +154,8 @@ type ServerConfig struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	// UdpEnabled specified whether or not to enable UDP for Shadowsocks.
-	// Deprecated. Use 'network' field.
-	//
-	// Deprecated: Do not use.
-	UdpEnabled bool           `protobuf:"varint,1,opt,name=udp_enabled,json=udpEnabled,proto3" json:"udp_enabled,omitempty"`
-	User       *protocol.User `protobuf:"bytes,2,opt,name=user,proto3" json:"user,omitempty"`
-	Network    []net.Network  `protobuf:"varint,3,rep,packed,name=network,proto3,enum=xray.common.net.Network" json:"network,omitempty"`
+	Users   []*protocol.User `protobuf:"bytes,1,rep,name=users,proto3" json:"users,omitempty"`
+	Network []net.Network    `protobuf:"varint,2,rep,packed,name=network,proto3,enum=xray.common.net.Network" json:"network,omitempty"`
 }
 
 func (x *ServerConfig) Reset() {
@@ -195,17 +190,9 @@ func (*ServerConfig) Descriptor() ([]byte, []int) {
 	return file_proxy_shadowsocks_config_proto_rawDescGZIP(), []int{1}
 }
 
-// Deprecated: Do not use.
-func (x *ServerConfig) GetUdpEnabled() bool {
+func (x *ServerConfig) GetUsers() []*protocol.User {
 	if x != nil {
-		return x.UdpEnabled
-	}
-	return false
-}
-
-func (x *ServerConfig) GetUser() *protocol.User {
-	if x != nil {
-		return x.User
+		return x.Users
 	}
 	return nil
 }
@@ -282,39 +269,37 @@ var file_proxy_shadowsocks_config_proto_rawDesc = []byte{
 	0x65, 0x72, 0x5f, 0x74, 0x79, 0x70, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0e, 0x32, 0x22, 0x2e,
 	0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x73, 0x68, 0x61, 0x64, 0x6f,
 	0x77, 0x73, 0x6f, 0x63, 0x6b, 0x73, 0x2e, 0x43, 0x69, 0x70, 0x68, 0x65, 0x72, 0x54, 0x79, 0x70,
-	0x65, 0x52, 0x0a, 0x63, 0x69, 0x70, 0x68, 0x65, 0x72, 0x54, 0x79, 0x70, 0x65, 0x22, 0x97, 0x01,
-	0x0a, 0x0c, 0x53, 0x65, 0x72, 0x76, 0x65, 0x72, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x23,
-	0x0a, 0x0b, 0x75, 0x64, 0x70, 0x5f, 0x65, 0x6e, 0x61, 0x62, 0x6c, 0x65, 0x64, 0x18, 0x01, 0x20,
-	0x01, 0x28, 0x08, 0x42, 0x02, 0x18, 0x01, 0x52, 0x0a, 0x75, 0x64, 0x70, 0x45, 0x6e, 0x61, 0x62,
-	0x6c, 0x65, 0x64, 0x12, 0x2e, 0x0a, 0x04, 0x75, 0x73, 0x65, 0x72, 0x18, 0x02, 0x20, 0x01, 0x28,
-	0x0b, 0x32, 0x1a, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e,
-	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x63, 0x6f, 0x6c, 0x2e, 0x55, 0x73, 0x65, 0x72, 0x52, 0x04, 0x75,
-	0x73, 0x65, 0x72, 0x12, 0x32, 0x0a, 0x07, 0x6e, 0x65, 0x74, 0x77, 0x6f, 0x72, 0x6b, 0x18, 0x03,
-	0x20, 0x03, 0x28, 0x0e, 0x32, 0x18, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d,
-	0x6f, 0x6e, 0x2e, 0x6e, 0x65, 0x74, 0x2e, 0x4e, 0x65, 0x74, 0x77, 0x6f, 0x72, 0x6b, 0x52, 0x07,
-	0x6e, 0x65, 0x74, 0x77, 0x6f, 0x72, 0x6b, 0x22, 0x4c, 0x0a, 0x0c, 0x43, 0x6c, 0x69, 0x65, 0x6e,
-	0x74, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x3c, 0x0a, 0x06, 0x73, 0x65, 0x72, 0x76, 0x65,
-	0x72, 0x18, 0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x24, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x63,
-	0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x63, 0x6f, 0x6c, 0x2e, 0x53,
-	0x65, 0x72, 0x76, 0x65, 0x72, 0x45, 0x6e, 0x64, 0x70, 0x6f, 0x69, 0x6e, 0x74, 0x52, 0x06, 0x73,
-	0x65, 0x72, 0x76, 0x65, 0x72, 0x2a, 0x9f, 0x01, 0x0a, 0x0a, 0x43, 0x69, 0x70, 0x68, 0x65, 0x72,
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-	0x00, 0x12, 0x0f, 0x0a, 0x0b, 0x41, 0x45, 0x53, 0x5f, 0x31, 0x32, 0x38, 0x5f, 0x43, 0x46, 0x42,
-	0x10, 0x01, 0x12, 0x0f, 0x0a, 0x0b, 0x41, 0x45, 0x53, 0x5f, 0x32, 0x35, 0x36, 0x5f, 0x43, 0x46,
-	0x42, 0x10, 0x02, 0x12, 0x0c, 0x0a, 0x08, 0x43, 0x48, 0x41, 0x43, 0x48, 0x41, 0x32, 0x30, 0x10,
-	0x03, 0x12, 0x11, 0x0a, 0x0d, 0x43, 0x48, 0x41, 0x43, 0x48, 0x41, 0x32, 0x30, 0x5f, 0x49, 0x45,
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-	0x47, 0x43, 0x4d, 0x10, 0x05, 0x12, 0x0f, 0x0a, 0x0b, 0x41, 0x45, 0x53, 0x5f, 0x32, 0x35, 0x36,
-	0x5f, 0x47, 0x43, 0x4d, 0x10, 0x06, 0x12, 0x15, 0x0a, 0x11, 0x43, 0x48, 0x41, 0x43, 0x48, 0x41,
-	0x32, 0x30, 0x5f, 0x50, 0x4f, 0x4c, 0x59, 0x31, 0x33, 0x30, 0x35, 0x10, 0x07, 0x12, 0x08, 0x0a,
-	0x04, 0x4e, 0x4f, 0x4e, 0x45, 0x10, 0x08, 0x42, 0x64, 0x0a, 0x1a, 0x63, 0x6f, 0x6d, 0x2e, 0x78,
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-	0x72, 0x6f, 0x74, 0x6f, 0x33,
+	0x65, 0x52, 0x0a, 0x63, 0x69, 0x70, 0x68, 0x65, 0x72, 0x54, 0x79, 0x70, 0x65, 0x22, 0x74, 0x0a,
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+	0x05, 0x75, 0x73, 0x65, 0x72, 0x73, 0x18, 0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x1a, 0x2e, 0x78,
+	0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f,
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+	0x32, 0x0a, 0x07, 0x6e, 0x65, 0x74, 0x77, 0x6f, 0x72, 0x6b, 0x18, 0x02, 0x20, 0x03, 0x28, 0x0e,
+	0x32, 0x18, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x6e,
+	0x65, 0x74, 0x2e, 0x4e, 0x65, 0x74, 0x77, 0x6f, 0x72, 0x6b, 0x52, 0x07, 0x6e, 0x65, 0x74, 0x77,
+	0x6f, 0x72, 0x6b, 0x22, 0x4c, 0x0a, 0x0c, 0x43, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x43, 0x6f, 0x6e,
+	0x66, 0x69, 0x67, 0x12, 0x3c, 0x0a, 0x06, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x18, 0x01, 0x20,
+	0x03, 0x28, 0x0b, 0x32, 0x24, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f,
+	0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x63, 0x6f, 0x6c, 0x2e, 0x53, 0x65, 0x72, 0x76, 0x65,
+	0x72, 0x45, 0x6e, 0x64, 0x70, 0x6f, 0x69, 0x6e, 0x74, 0x52, 0x06, 0x73, 0x65, 0x72, 0x76, 0x65,
+	0x72, 0x2a, 0x9f, 0x01, 0x0a, 0x0a, 0x43, 0x69, 0x70, 0x68, 0x65, 0x72, 0x54, 0x79, 0x70, 0x65,
+	0x12, 0x0b, 0x0a, 0x07, 0x55, 0x4e, 0x4b, 0x4e, 0x4f, 0x57, 0x4e, 0x10, 0x00, 0x12, 0x0f, 0x0a,
+	0x0b, 0x41, 0x45, 0x53, 0x5f, 0x31, 0x32, 0x38, 0x5f, 0x43, 0x46, 0x42, 0x10, 0x01, 0x12, 0x0f,
+	0x0a, 0x0b, 0x41, 0x45, 0x53, 0x5f, 0x32, 0x35, 0x36, 0x5f, 0x43, 0x46, 0x42, 0x10, 0x02, 0x12,
+	0x0c, 0x0a, 0x08, 0x43, 0x48, 0x41, 0x43, 0x48, 0x41, 0x32, 0x30, 0x10, 0x03, 0x12, 0x11, 0x0a,
+	0x0d, 0x43, 0x48, 0x41, 0x43, 0x48, 0x41, 0x32, 0x30, 0x5f, 0x49, 0x45, 0x54, 0x46, 0x10, 0x04,
+	0x12, 0x0f, 0x0a, 0x0b, 0x41, 0x45, 0x53, 0x5f, 0x31, 0x32, 0x38, 0x5f, 0x47, 0x43, 0x4d, 0x10,
+	0x05, 0x12, 0x0f, 0x0a, 0x0b, 0x41, 0x45, 0x53, 0x5f, 0x32, 0x35, 0x36, 0x5f, 0x47, 0x43, 0x4d,
+	0x10, 0x06, 0x12, 0x15, 0x0a, 0x11, 0x43, 0x48, 0x41, 0x43, 0x48, 0x41, 0x32, 0x30, 0x5f, 0x50,
+	0x4f, 0x4c, 0x59, 0x31, 0x33, 0x30, 0x35, 0x10, 0x07, 0x12, 0x08, 0x0a, 0x04, 0x4e, 0x4f, 0x4e,
+	0x45, 0x10, 0x08, 0x42, 0x64, 0x0a, 0x1a, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e,
+	0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x73, 0x68, 0x61, 0x64, 0x6f, 0x77, 0x73, 0x6f, 0x63, 0x6b,
+	0x73, 0x50, 0x01, 0x5a, 0x2b, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f,
+	0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x70,
+	0x72, 0x6f, 0x78, 0x79, 0x2f, 0x73, 0x68, 0x61, 0x64, 0x6f, 0x77, 0x73, 0x6f, 0x63, 0x6b, 0x73,
+	0xaa, 0x02, 0x16, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x53, 0x68,
+	0x61, 0x64, 0x6f, 0x77, 0x73, 0x6f, 0x63, 0x6b, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+	0x33,
 }
 
 var (
@@ -342,7 +327,7 @@ var file_proxy_shadowsocks_config_proto_goTypes = []interface{}{
 }
 var file_proxy_shadowsocks_config_proto_depIdxs = []int32{
 	0, // 0: xray.proxy.shadowsocks.Account.cipher_type:type_name -> xray.proxy.shadowsocks.CipherType
-	4, // 1: xray.proxy.shadowsocks.ServerConfig.user:type_name -> xray.common.protocol.User
+	4, // 1: xray.proxy.shadowsocks.ServerConfig.users:type_name -> xray.common.protocol.User
 	5, // 2: xray.proxy.shadowsocks.ServerConfig.network:type_name -> xray.common.net.Network
 	6, // 3: xray.proxy.shadowsocks.ClientConfig.server:type_name -> xray.common.protocol.ServerEndpoint
 	4, // [4:4] is the sub-list for method output_type

proxy/shadowsocks/config.proto

@@ -28,11 +28,8 @@ enum CipherType {
 }
 
 message ServerConfig {
-  // UdpEnabled specified whether or not to enable UDP for Shadowsocks.
-  // Deprecated. Use 'network' field.
-  bool udp_enabled = 1 [deprecated = true];
-  xray.common.protocol.User user = 2;
-  repeated xray.common.net.Network network = 3;
+  repeated xray.common.protocol.User users = 1;
+  repeated xray.common.net.Network network = 2;
 }
 
 message ClientConfig {

proxy/shadowsocks/protocol.go

@@ -1,6 +1,7 @@
 package shadowsocks
 
 import (
+	"crypto/cipher"
 	"crypto/hmac"
 	"crypto/rand"
 	"crypto/sha256"
@@ -10,6 +11,7 @@ import (
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
+	"github.com/xtls/xray-core/common/crypto"
 	"github.com/xtls/xray-core/common/dice"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol"
@@ -28,8 +30,32 @@ var addrParser = protocol.NewAddressParser(
 	}),
 )
 
+type FullReader struct {
+	reader io.Reader
+	buffer []byte
+}
+
+func (r *FullReader) Read(p []byte) (n int, err error) {
+	if r.buffer != nil {
+		n := copy(p, r.buffer)
+		if n == len(r.buffer) {
+			r.buffer = nil
+		} else {
+			r.buffer = r.buffer[n:]
+		}
+		if n == len(p) {
+			return n, nil
+		} else {
+			m, err := r.reader.Read(p[n:])
+			return n + m, err
+		}
+	}
+	return r.reader.Read(p)
+}
+
 // ReadTCPSession reads a Shadowsocks TCP session from the given reader, returns its header and remaining parts.
-func ReadTCPSession(user *protocol.MemoryUser, reader io.Reader) (*protocol.RequestHeader, buf.Reader, error) {
+func ReadTCPSession(users []*protocol.MemoryUser, reader io.Reader) (*protocol.RequestHeader, buf.Reader, error) {
+	user := users[0]
 	account := user.Account.(*MemoryAccount)
 
 	hashkdf := hmac.New(sha256.New, []byte("SSBSKDF"))
@@ -44,28 +70,78 @@ func ReadTCPSession(user *protocol.MemoryUser, reader io.Reader) (*protocol.Requ
 	DrainSize := BaseDrainSize + 16 + 38 + RandDrainRolled
 	readSizeRemain := DrainSize
 
+	var r2 buf.Reader
+
+	if len(users) > 1 {
+		buffer := buf.New()
+		defer buffer.Release()
+
+		if _, err := buffer.ReadFullFrom(reader, 50); err != nil {
+			readSizeRemain -= int(buffer.Len())
+			DrainConnN(reader, readSizeRemain)
+			return nil, nil, newError("failed to read 50 bytes").Base(err)
+		}
+
+		bs := buffer.Bytes()
+
+		var aeadCipher *AEADCipher
+		var ivLen int32
+		subkey := make([]byte, 32)
+		length := make([]byte, 16)
+		var aead cipher.AEAD
+		var err error
+		for _, user = range users {
+			account = user.Account.(*MemoryAccount)
+			aeadCipher = account.Cipher.(*AEADCipher)
+			ivLen = aeadCipher.IVSize()
+			subkey = subkey[:aeadCipher.KeyBytes]
+			hkdfSHA1(account.Key, bs[:ivLen], subkey)
+			aead = aeadCipher.AEADAuthCreator(subkey)
+			_, err = aead.Open(length[:0], length[4:16], bs[ivLen:ivLen+18], nil)
+			if err == nil {
+				reader = &FullReader{reader, bs[ivLen:]}
+				auth := &crypto.AEADAuthenticator{
+					AEAD:           aead,
+					NonceGenerator: crypto.GenerateInitialAEADNonce(),
+				}
+				r2 = crypto.NewAuthenticationReader(auth, &crypto.AEADChunkSizeParser{
+					Auth: auth,
+				}, reader, protocol.TransferTypeStream, nil)
+				break
+			}
+		}
+		if err != nil {
+			readSizeRemain -= int(buffer.Len())
+			DrainConnN(reader, readSizeRemain)
+			return nil, nil, newError("failed to match an user").Base(err)
+		}
+	}
+
 	buffer := buf.New()
 	defer buffer.Release()
 
-	ivLen := account.Cipher.IVSize()
-	var iv []byte
-	if ivLen > 0 {
-		if _, err := buffer.ReadFullFrom(reader, ivLen); err != nil {
-			readSizeRemain -= int(buffer.Len())
-			DrainConnN(reader, readSizeRemain)
-			return nil, nil, newError("failed to read IV").Base(err)
+	if r2 == nil {
+		ivLen := account.Cipher.IVSize()
+		var iv []byte
+		if ivLen > 0 {
+			if _, err := buffer.ReadFullFrom(reader, ivLen); err != nil {
+				readSizeRemain -= int(buffer.Len())
+				DrainConnN(reader, readSizeRemain)
+				return nil, nil, newError("failed to read IV").Base(err)
+			}
+			iv = append([]byte(nil), buffer.BytesTo(ivLen)...)
 		}
 
-		iv = append([]byte(nil), buffer.BytesTo(ivLen)...)
+		r, err := account.Cipher.NewDecryptionReader(account.Key, iv, reader)
+		if err != nil {
+			readSizeRemain -= int(buffer.Len())
+			DrainConnN(reader, readSizeRemain)
+			return nil, nil, newError("failed to initialize decoding stream").Base(err).AtError()
+		}
+		r2 = r
 	}
 
-	r, err := account.Cipher.NewDecryptionReader(account.Key, iv, reader)
-	if err != nil {
-		readSizeRemain -= int(buffer.Len())
-		DrainConnN(reader, readSizeRemain)
-		return nil, nil, newError("failed to initialize decoding stream").Base(err).AtError()
-	}
-	br := &buf.BufferedReader{Reader: r}
+	br := &buf.BufferedReader{Reader: r2}
 
 	request := &protocol.RequestHeader{
 		Version: Version,
@@ -185,17 +261,52 @@ func EncodeUDPPacket(request *protocol.RequestHeader, payload []byte) (*buf.Buff
 	return buffer, nil
 }
 
-func DecodeUDPPacket(user *protocol.MemoryUser, payload *buf.Buffer) (*protocol.RequestHeader, *buf.Buffer, error) {
-	account := user.Account.(*MemoryAccount)
+func DecodeUDPPacket(users []*protocol.MemoryUser, payload *buf.Buffer) (*protocol.RequestHeader, *buf.Buffer, error) {
+	var user *protocol.MemoryUser
+	var account *MemoryAccount
+	var err error
 
-	var iv []byte
-	if !account.Cipher.IsAEAD() && account.Cipher.IVSize() > 0 {
-		// Keep track of IV as it gets removed from payload in DecodePacket.
-		iv = make([]byte, account.Cipher.IVSize())
-		copy(iv, payload.BytesTo(account.Cipher.IVSize()))
+	if len(users) > 1 {
+		bs := payload.Bytes()
+		if len(bs) <= 32 {
+			return nil, nil, newError("len(bs) <= 32")
+		}
+
+		var aeadCipher *AEADCipher
+		var ivLen int32
+		subkey := make([]byte, 32)
+		data := make([]byte, 8192)
+		var aead cipher.AEAD
+		var d []byte
+		for _, user = range users {
+			account = user.Account.(*MemoryAccount)
+			aeadCipher = account.Cipher.(*AEADCipher)
+			ivLen = aeadCipher.IVSize()
+			subkey = subkey[:aeadCipher.KeyBytes]
+			hkdfSHA1(account.Key, bs[:ivLen], subkey)
+			aead = aeadCipher.AEADAuthCreator(subkey)
+			d, err = aead.Open(data[:0], data[8180:8192], bs[ivLen:], nil)
+			if err == nil {
+				payload.Clear()
+				payload.Write(d)
+				break
+			}
+		}
+	} else {
+		user = users[0]
+		account = user.Account.(*MemoryAccount)
+
+		var iv []byte
+		if !account.Cipher.IsAEAD() && account.Cipher.IVSize() > 0 {
+			// Keep track of IV as it gets removed from payload in DecodePacket.
+			iv = make([]byte, account.Cipher.IVSize())
+			copy(iv, payload.BytesTo(account.Cipher.IVSize()))
+		}
+
+		err = account.Cipher.DecodePacket(account.Key, payload)
 	}
 
-	if err := account.Cipher.DecodePacket(account.Key, payload); err != nil {
+	if err != nil {
 		return nil, nil, newError("failed to decrypt UDP payload").Base(err)
 	}
 
@@ -230,11 +341,13 @@ func (v *UDPReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
 		buffer.Release()
 		return nil, err
 	}
-	_, payload, err := DecodeUDPPacket(v.User, buffer)
+	u, payload, err := DecodeUDPPacket([]*protocol.MemoryUser{v.User}, buffer)
 	if err != nil {
 		buffer.Release()
 		return nil, err
 	}
+	dest := u.Destination()
+	payload.UDP = &dest
 	return buf.MultiBuffer{payload}, nil
 }
 
@@ -243,13 +356,33 @@ type UDPWriter struct {
 	Request *protocol.RequestHeader
 }
 
-// Write implements io.Writer.
-func (w *UDPWriter) Write(payload []byte) (int, error) {
-	packet, err := EncodeUDPPacket(w.Request, payload)
-	if err != nil {
-		return 0, err
+func (w *UDPWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
+	for {
+		mb2, b := buf.SplitFirst(mb)
+		mb = mb2
+		if b == nil {
+			break
+		}
+		request := w.Request
+		if b.UDP != nil {
+			request = &protocol.RequestHeader{
+				User:    w.Request.User,
+				Address: b.UDP.Address,
+				Port:    b.UDP.Port,
+			}
+		}
+		packet, err := EncodeUDPPacket(request, b.Bytes())
+		b.Release()
+		if err != nil {
+			buf.ReleaseMulti(mb)
+			return err
+		}
+		_, err = w.Writer.Write(packet.Bytes())
+		packet.Release()
+		if err != nil {
+			buf.ReleaseMulti(mb)
+			return err
+		}
 	}
-	_, err = w.Writer.Write(packet.Bytes())
-	packet.Release()
-	return len(payload), err
+	return nil
 }

proxy/shadowsocks/protocol_test.go

@@ -28,7 +28,7 @@ func TestUDPEncoding(t *testing.T) {
 			Email: "love@example.com",
 			Account: toAccount(&Account{
 				Password:   "shadowsocks-password",
-				CipherType: CipherType_AES_128_CFB,
+				CipherType: CipherType_AES_128_GCM,
 			}),
 		},
 	}
@@ -38,7 +38,7 @@ func TestUDPEncoding(t *testing.T) {
 	encodedData, err := EncodeUDPPacket(request, data.Bytes())
 	common.Must(err)
 
-	decodedRequest, decodedData, err := DecodeUDPPacket(request.User, encodedData)
+	decodedRequest, decodedData, err := DecodeUDPPacket([]*protocol.MemoryUser{request.User}, encodedData)
 	common.Must(err)
 
 	if r := cmp.Diff(decodedData.Bytes(), data.Bytes()); r != "" {
@@ -65,7 +65,7 @@ func TestTCPRequest(t *testing.T) {
 					Email: "love@example.com",
 					Account: toAccount(&Account{
 						Password:   "tcp-password",
-						CipherType: CipherType_CHACHA20,
+						CipherType: CipherType_CHACHA20_POLY1305,
 					}),
 				},
 			},
@@ -81,7 +81,7 @@ func TestTCPRequest(t *testing.T) {
 					Email: "love@example.com",
 					Account: toAccount(&Account{
 						Password:   "password",
-						CipherType: CipherType_AES_256_CFB,
+						CipherType: CipherType_AES_256_GCM,
 					}),
 				},
 			},
@@ -97,7 +97,7 @@ func TestTCPRequest(t *testing.T) {
 					Email: "love@example.com",
 					Account: toAccount(&Account{
 						Password:   "password",
-						CipherType: CipherType_CHACHA20_IETF,
+						CipherType: CipherType_AES_128_GCM,
 					}),
 				},
 			},
@@ -117,7 +117,7 @@ func TestTCPRequest(t *testing.T) {
 
 		common.Must(writer.WriteMultiBuffer(buf.MultiBuffer{data}))
 
-		decodedRequest, reader, err := ReadTCPSession(request.User, cache)
+		decodedRequest, reader, err := ReadTCPSession([]*protocol.MemoryUser{request.User}, cache)
 		common.Must(err)
 		if r := cmp.Diff(decodedRequest, request); r != "" {
 			t.Error("request: ", r)
@@ -139,13 +139,13 @@ func TestUDPReaderWriter(t *testing.T) {
 	user := &protocol.MemoryUser{
 		Account: toAccount(&Account{
 			Password:   "test-password",
-			CipherType: CipherType_CHACHA20_IETF,
+			CipherType: CipherType_CHACHA20_POLY1305,
 		}),
 	}
 	cache := buf.New()
 	defer cache.Release()
 
-	writer := &buf.SequentialWriter{Writer: &UDPWriter{
+	writer := &UDPWriter{
 		Writer: cache,
 		Request: &protocol.RequestHeader{
 			Version: Version,
@@ -153,7 +153,7 @@ func TestUDPReaderWriter(t *testing.T) {
 			Port:    123,
 			User:    user,
 		},
-	}}
+	}
 
 	reader := &UDPReader{
 		Reader: cache,

proxy/shadowsocks/server.go

@@ -22,26 +22,30 @@ import (
 
 type Server struct {
 	config        *ServerConfig
-	user          *protocol.MemoryUser
+	users         []*protocol.MemoryUser
 	policyManager policy.Manager
+	cone          bool
 }
 
 // NewServer create a new Shadowsocks server.
 func NewServer(ctx context.Context, config *ServerConfig) (*Server, error) {
-	if config.GetUser() == nil {
-		return nil, newError("user is not specified")
-	}
-
-	mUser, err := config.User.ToMemoryUser()
-	if err != nil {
-		return nil, newError("failed to parse user account").Base(err)
+	if config.Users == nil {
+		return nil, newError("empty users")
 	}
 
 	v := core.MustFromContext(ctx)
 	s := &Server{
 		config:        config,
-		user:          mUser,
 		policyManager: v.GetFeature(policy.ManagerType()).(policy.Manager),
+		cone:          ctx.Value("cone").(bool),
+	}
+
+	for _, user := range config.Users {
+		u, err := user.ToMemoryUser()
+		if err != nil {
+			return nil, newError("failed to parse user account").Base(err)
+		}
+		s.users = append(s.users, u)
 	}
 
 	return s, nil
@@ -52,9 +56,6 @@ func (s *Server) Network() []net.Network {
 	if len(list) == 0 {
 		list = append(list, net.Network_TCP)
 	}
-	if s.config.UdpEnabled {
-		list = append(list, net.Network_UDP)
-	}
 	return list
 }
 
@@ -77,6 +78,15 @@ func (s *Server) handlerUDPPayload(ctx context.Context, conn internet.Connection
 		}
 
 		payload := packet.Payload
+
+		if payload.UDP != nil {
+			request = &protocol.RequestHeader{
+				User:    request.User,
+				Address: payload.UDP.Address,
+				Port:    payload.UDP.Port,
+			}
+		}
+
 		data, err := EncodeUDPPacket(request, payload.Bytes())
 		payload.Release()
 		if err != nil {
@@ -92,7 +102,11 @@ func (s *Server) handlerUDPPayload(ctx context.Context, conn internet.Connection
 	if inbound == nil {
 		panic("no inbound metadata")
 	}
-	inbound.User = s.user
+	if len(s.users) == 1 {
+		inbound.User = s.users[0]
+	}
+
+	var dest *net.Destination
 
 	reader := buf.NewPacketReader(conn)
 	for {
@@ -102,9 +116,21 @@ func (s *Server) handlerUDPPayload(ctx context.Context, conn internet.Connection
 		}
 
 		for _, payload := range mpayload {
-			request, data, err := DecodeUDPPacket(s.user, payload)
+			var request *protocol.RequestHeader
+			var data *buf.Buffer
+			var err error
+
+			if inbound.User != nil {
+				request, data, err = DecodeUDPPacket([]*protocol.MemoryUser{inbound.User}, payload)
+			} else {
+				request, data, err = DecodeUDPPacket(s.users, payload)
+				if err == nil {
+					inbound.User = request.User
+				}
+			}
+
 			if err != nil {
-				if inbound := session.InboundFromContext(ctx); inbound != nil && inbound.Source.IsValid() {
+				if inbound.Source.IsValid() {
 					newError("dropping invalid UDP packet from: ", inbound.Source).Base(err).WriteToLog(session.ExportIDToError(ctx))
 					log.Record(&log.AccessMessage{
 						From:   inbound.Source,
@@ -117,21 +143,28 @@ func (s *Server) handlerUDPPayload(ctx context.Context, conn internet.Connection
 				continue
 			}
 
+			destination := request.Destination()
+
 			currentPacketCtx := ctx
-			dest := request.Destination()
 			if inbound.Source.IsValid() {
 				currentPacketCtx = log.ContextWithAccessMessage(ctx, &log.AccessMessage{
 					From:   inbound.Source,
-					To:     dest,
+					To:     destination,
 					Status: log.AccessAccepted,
 					Reason: "",
 					Email:  request.User.Email,
 				})
 			}
-			newError("tunnelling request to ", dest).WriteToLog(session.ExportIDToError(currentPacketCtx))
+			newError("tunnelling request to ", destination).WriteToLog(session.ExportIDToError(currentPacketCtx))
+
+			data.UDP = &destination
+
+			if !s.cone || dest == nil {
+				dest = &destination
+			}
 
 			currentPacketCtx = protocol.ContextWithRequestHeader(currentPacketCtx, request)
-			udpServer.Dispatch(currentPacketCtx, dest, data)
+			udpServer.Dispatch(currentPacketCtx, *dest, data)
 		}
 	}
 
@@ -139,11 +172,13 @@ func (s *Server) handlerUDPPayload(ctx context.Context, conn internet.Connection
 }
 
 func (s *Server) handleConnection(ctx context.Context, conn internet.Connection, dispatcher routing.Dispatcher) error {
-	sessionPolicy := s.policyManager.ForLevel(s.user.Level)
-	conn.SetReadDeadline(time.Now().Add(sessionPolicy.Timeouts.Handshake))
+	sessionPolicy := s.policyManager.ForLevel(0)
+	if err := conn.SetReadDeadline(time.Now().Add(sessionPolicy.Timeouts.Handshake)); err != nil {
+		return newError("unable to set read deadline").Base(err).AtWarning()
+	}
 
 	bufferedReader := buf.BufferedReader{Reader: buf.NewReader(conn)}
-	request, bodyReader, err := ReadTCPSession(s.user, &bufferedReader)
+	request, bodyReader, err := ReadTCPSession(s.users, &bufferedReader)
 	if err != nil {
 		log.Record(&log.AccessMessage{
 			From:   conn.RemoteAddr(),
@@ -159,7 +194,7 @@ func (s *Server) handleConnection(ctx context.Context, conn internet.Connection,
 	if inbound == nil {
 		panic("no inbound metadata")
 	}
-	inbound.User = s.user
+	inbound.User = request.User
 
 	dest := request.Destination()
 	ctx = log.ContextWithAccessMessage(ctx, &log.AccessMessage{
@@ -171,6 +206,7 @@ func (s *Server) handleConnection(ctx context.Context, conn internet.Connection,
 	})
 	newError("tunnelling request to ", dest).WriteToLog(session.ExportIDToError(ctx))
 
+	sessionPolicy = s.policyManager.ForLevel(request.User.Level)
 	ctx, cancel := context.WithCancel(ctx)
 	timer := signal.CancelAfterInactivity(ctx, cancel, sessionPolicy.Timeouts.ConnectionIdle)
 

proxy/socks/client.go

@@ -51,14 +51,19 @@ func (c *Client) Process(ctx context.Context, link *transport.Link, dialer inter
 	if outbound == nil || !outbound.Target.IsValid() {
 		return newError("target not specified.")
 	}
+	// Destination of the inner request.
 	destination := outbound.Target
 
+	// Outbound server.
 	var server *protocol.ServerSpec
+	// Outbound server's destination.
+	var dest net.Destination
+	// Connection to the outbound server.
 	var conn internet.Connection
 
 	if err := retry.ExponentialBackoff(5, 100).On(func() error {
 		server = c.serverPicker.PickServer()
-		dest := server.Destination()
+		dest = server.Destination()
 		rawConn, err := dialer.Dial(ctx, dest)
 		if err != nil {
 			return err
@@ -101,6 +106,11 @@ func (c *Client) Process(ctx context.Context, link *transport.Link, dialer inter
 	if err != nil {
 		return newError("failed to establish connection to server").AtWarning().Base(err)
 	}
+	if udpRequest != nil {
+		if udpRequest.Address == net.AnyIP || udpRequest.Address == net.AnyIPv6 {
+			udpRequest.Address = dest.Address
+		}
+	}
 
 	if err := conn.SetDeadline(time.Time{}); err != nil {
 		newError("failed to clear deadline after handshake").Base(err).WriteToLog(session.ExportIDToError(ctx))
@@ -128,11 +138,12 @@ func (c *Client) Process(ctx context.Context, link *transport.Link, dialer inter
 		defer udpConn.Close()
 		requestFunc = func() error {
 			defer timer.SetTimeout(p.Timeouts.DownlinkOnly)
-			return buf.Copy(link.Reader, &buf.SequentialWriter{Writer: NewUDPWriter(request, udpConn)}, buf.UpdateActivity(timer))
+			writer := &UDPWriter{Writer: udpConn, Request: request}
+			return buf.Copy(link.Reader, writer, buf.UpdateActivity(timer))
 		}
 		responseFunc = func() error {
 			defer timer.SetTimeout(p.Timeouts.UplinkOnly)
-			reader := &UDPReader{reader: udpConn}
+			reader := &UDPReader{Reader: udpConn}
 			return buf.Copy(reader, link.Writer, buf.UpdateActivity(timer))
 		}
 	}

proxy/socks/protocol.go

@@ -16,7 +16,7 @@ const (
 
 	cmdTCPConnect    = 0x01
 	cmdTCPBind       = 0x02
-	cmdUDPPort       = 0x03
+	cmdUDPAssociate  = 0x03
 	cmdTorResolve    = 0xF0
 	cmdTorResolvePTR = 0xF1
 
@@ -39,8 +39,10 @@ var addrParser = protocol.NewAddressParser(
 )
 
 type ServerSession struct {
-	config *ServerConfig
-	port   net.Port
+	config       *ServerConfig
+	address      net.Address
+	port         net.Port
+	localAddress net.Address
 }
 
 func (s *ServerSession) handshake4(cmd byte, reader io.Reader, writer io.Writer) (*protocol.RequestHeader, error) {
@@ -162,7 +164,7 @@ func (s *ServerSession) handshake5(nMethod byte, reader io.Reader, writer io.Wri
 	case cmdTCPConnect, cmdTorResolve, cmdTorResolvePTR:
 		// We don't have a solution for Tor case now. Simply treat it as connect command.
 		request.Command = protocol.RequestCommandTCP
-	case cmdUDPPort:
+	case cmdUDPAssociate:
 		if !s.config.UdpEnabled {
 			writeSocks5Response(writer, statusCmdNotSupport, net.AnyIP, net.Port(0))
 			return nil, newError("UDP is not enabled.")
@@ -185,15 +187,17 @@ func (s *ServerSession) handshake5(nMethod byte, reader io.Reader, writer io.Wri
 	request.Address = addr
 	request.Port = port
 
-	responseAddress := net.AnyIP
-	responsePort := net.Port(1717)
+	responseAddress := s.address
+	responsePort := s.port
+	//nolint:gocritic // Use if else chain for clarity
 	if request.Command == protocol.RequestCommandUDP {
-		addr := s.config.Address.AsAddress()
-		if addr == nil {
-			addr = net.LocalHostIP
+		if s.config.Address != nil {
+			// Use configured IP as remote address in the response to UDP Associate
+			responseAddress = s.config.Address.AsAddress()
+		} else {
+			// Use conn.LocalAddr() IP as remote address in the response by default
+			responseAddress = s.localAddress
 		}
-		responseAddress = addr
-		responsePort = s.port
 	}
 	if err := writeSocks5Response(writer, statusSuccess, responseAddress, responsePort); err != nil {
 		return nil, err
@@ -353,47 +357,59 @@ func EncodeUDPPacket(request *protocol.RequestHeader, data []byte) (*buf.Buffer,
 }
 
 type UDPReader struct {
-	reader io.Reader
-}
-
-func NewUDPReader(reader io.Reader) *UDPReader {
-	return &UDPReader{reader: reader}
+	Reader io.Reader
 }
 
 func (r *UDPReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
-	b := buf.New()
-	if _, err := b.ReadFrom(r.reader); err != nil {
+	buffer := buf.New()
+	_, err := buffer.ReadFrom(r.Reader)
+	if err != nil {
+		buffer.Release()
 		return nil, err
 	}
-	if _, err := DecodeUDPPacket(b); err != nil {
+	u, err := DecodeUDPPacket(buffer)
+	if err != nil {
+		buffer.Release()
 		return nil, err
 	}
-	return buf.MultiBuffer{b}, nil
+	dest := u.Destination()
+	buffer.UDP = &dest
+	return buf.MultiBuffer{buffer}, nil
 }
 
 type UDPWriter struct {
-	request *protocol.RequestHeader
-	writer  io.Writer
+	Writer  io.Writer
+	Request *protocol.RequestHeader
 }
 
-func NewUDPWriter(request *protocol.RequestHeader, writer io.Writer) *UDPWriter {
-	return &UDPWriter{
-		request: request,
-		writer:  writer,
+func (w *UDPWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
+	for {
+		mb2, b := buf.SplitFirst(mb)
+		mb = mb2
+		if b == nil {
+			break
+		}
+		request := w.Request
+		if b.UDP != nil {
+			request = &protocol.RequestHeader{
+				Address: b.UDP.Address,
+				Port:    b.UDP.Port,
+			}
+		}
+		packet, err := EncodeUDPPacket(request, b.Bytes())
+		b.Release()
+		if err != nil {
+			buf.ReleaseMulti(mb)
+			return err
+		}
+		_, err = w.Writer.Write(packet.Bytes())
+		packet.Release()
+		if err != nil {
+			buf.ReleaseMulti(mb)
+			return err
+		}
 	}
-}
-
-// Write implements io.Writer.
-func (w *UDPWriter) Write(b []byte) (int, error) {
-	eb, err := EncodeUDPPacket(w.request, b)
-	if err != nil {
-		return 0, err
-	}
-	defer eb.Release()
-	if _, err := w.writer.Write(eb.Bytes()); err != nil {
-		return 0, err
-	}
-	return len(b), nil
+	return nil
 }
 
 func ClientHandshake(request *protocol.RequestHeader, reader io.Reader, writer io.Writer) (*protocol.RequestHeader, error) {
@@ -446,7 +462,7 @@ func ClientHandshake(request *protocol.RequestHeader, reader io.Reader, writer i
 
 	command := byte(cmdTCPConnect)
 	if request.Command == protocol.RequestCommandUDP {
-		command = byte(cmdUDPPort)
+		command = byte(cmdUDPAssociate)
 	}
 	common.Must2(b.Write([]byte{socks5Version, command, 0x00 /* reserved */}))
 	if err := addrParser.WriteAddressPort(b, request.Address, request.Port); err != nil {

proxy/socks/protocol_test.go

@@ -20,14 +20,14 @@ func TestUDPEncoding(t *testing.T) {
 		Address: net.IPAddress([]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6}),
 		Port:    1024,
 	}
-	writer := &buf.SequentialWriter{Writer: NewUDPWriter(request, b)}
+	writer := &UDPWriter{Writer: b, Request: request}
 
 	content := []byte{'a'}
 	payload := buf.New()
 	payload.Write(content)
 	common.Must(writer.WriteMultiBuffer(buf.MultiBuffer{payload}))
 
-	reader := NewUDPReader(b)
+	reader := &UDPReader{Reader: b}
 
 	decodedPayload, err := reader.ReadMultiBuffer()
 	common.Must(err)

proxy/socks/server.go

@@ -26,6 +26,7 @@ import (
 type Server struct {
 	config        *ServerConfig
 	policyManager policy.Manager
+	cone          bool
 }
 
 // NewServer creates a new Server object.
@@ -34,6 +35,7 @@ func NewServer(ctx context.Context, config *ServerConfig) (*Server, error) {
 	s := &Server{
 		config:        config,
 		policyManager: v.GetFeature(policy.ManagerType()).(policy.Manager),
+		cone:          ctx.Value("cone").(bool),
 	}
 	return s, nil
 }
@@ -89,8 +91,10 @@ func (s *Server) processTCP(ctx context.Context, conn internet.Connection, dispa
 	}
 
 	svrSession := &ServerSession{
-		config: s.config,
-		port:   inbound.Gateway.Port,
+		config:       s.config,
+		address:      inbound.Gateway.Address,
+		port:         inbound.Gateway.Port,
+		localAddress: net.IPAddress(conn.LocalAddr().(*net.TCPAddr).IP),
 	}
 
 	reader := &buf.BufferedReader{Reader: buf.NewReader(conn)}
@@ -196,6 +200,15 @@ func (s *Server) handleUDPPayload(ctx context.Context, conn internet.Connection,
 		if request == nil {
 			return
 		}
+
+		if payload.UDP != nil {
+			request = &protocol.RequestHeader{
+				User:    request.User,
+				Address: payload.UDP.Address,
+				Port:    payload.UDP.Port,
+			}
+		}
+
 		udpMessage, err := EncodeUDPPacket(request, payload.Bytes())
 		payload.Release()
 
@@ -207,10 +220,13 @@ func (s *Server) handleUDPPayload(ctx context.Context, conn internet.Connection,
 		conn.Write(udpMessage.Bytes())
 	})
 
-	if inbound := session.InboundFromContext(ctx); inbound != nil && inbound.Source.IsValid() {
+	inbound := session.InboundFromContext(ctx)
+	if inbound != nil && inbound.Source.IsValid() {
 		newError("client UDP connection from ", inbound.Source).WriteToLog(session.ExportIDToError(ctx))
 	}
 
+	var dest *net.Destination
+
 	reader := buf.NewPacketReader(conn)
 	for {
 		mpayload, err := reader.ReadMultiBuffer()
@@ -231,19 +247,28 @@ func (s *Server) handleUDPPayload(ctx context.Context, conn internet.Connection,
 				payload.Release()
 				continue
 			}
+
+			destination := request.Destination()
+
 			currentPacketCtx := ctx
-			newError("send packet to ", request.Destination(), " with ", payload.Len(), " bytes").AtDebug().WriteToLog(session.ExportIDToError(ctx))
-			if inbound := session.InboundFromContext(ctx); inbound != nil && inbound.Source.IsValid() {
+			newError("send packet to ", destination, " with ", payload.Len(), " bytes").AtDebug().WriteToLog(session.ExportIDToError(ctx))
+			if inbound != nil && inbound.Source.IsValid() {
 				currentPacketCtx = log.ContextWithAccessMessage(ctx, &log.AccessMessage{
 					From:   inbound.Source,
-					To:     request.Destination(),
+					To:     destination,
 					Status: log.AccessAccepted,
 					Reason: "",
 				})
 			}
 
+			payload.UDP = &destination
+
+			if !s.cone || dest == nil {
+				dest = &destination
+			}
+
 			currentPacketCtx = protocol.ContextWithRequestHeader(currentPacketCtx, request)
-			udpServer.Dispatch(currentPacketCtx, request.Destination(), payload)
+			udpServer.Dispatch(currentPacketCtx, *dest, payload)
 		}
 	}
 }

proxy/trojan/client.go

@@ -7,6 +7,7 @@ import (
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
+	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/platform"
 	"github.com/xtls/xray-core/common/protocol"
@@ -79,62 +80,63 @@ func (c *Client) Process(ctx context.Context, link *transport.Link, dialer inter
 
 	defer conn.Close()
 
-	user := server.PickUser()
-	account, ok := user.Account.(*MemoryAccount)
-	if !ok {
-		return newError("user account is not valid")
-	}
-
 	iConn := conn
 	statConn, ok := iConn.(*internet.StatCouterConnection)
 	if ok {
 		iConn = statConn.Connection
 	}
 
+	user := server.PickUser()
+	account, ok := user.Account.(*MemoryAccount)
+	if !ok {
+		return newError("user account is not valid")
+	}
+
+	connWriter := &ConnWriter{
+		Flow: account.Flow,
+	}
+
 	var rawConn syscall.RawConn
 	var sctx context.Context
 
-	connWriter := &ConnWriter{}
 	allowUDP443 := false
-	switch account.Flow {
+	switch connWriter.Flow {
 	case XRO + "-udp443", XRD + "-udp443", XRS + "-udp443":
 		allowUDP443 = true
-		account.Flow = account.Flow[:16]
+		connWriter.Flow = connWriter.Flow[:16]
 		fallthrough
 	case XRO, XRD, XRS:
 		if destination.Address.Family().IsDomain() && destination.Address.Domain() == muxCoolAddress {
-			return newError(account.Flow + " doesn't support Mux").AtWarning()
+			return newError(connWriter.Flow + " doesn't support Mux").AtWarning()
 		}
 		if destination.Network == net.Network_UDP {
 			if !allowUDP443 && destination.Port == 443 {
-				return newError(account.Flow + " stopped UDP/443").AtInfo()
+				return newError(connWriter.Flow + " stopped UDP/443").AtInfo()
 			}
+			connWriter.Flow = ""
 		} else { // enable XTLS only if making TCP request
 			if xtlsConn, ok := iConn.(*xtls.Conn); ok {
 				xtlsConn.RPRX = true
-				xtlsConn.SHOW = trojanXTLSShow
+				xtlsConn.SHOW = xtls_show
 				xtlsConn.MARK = "XTLS"
-				if account.Flow == XRS {
+				if connWriter.Flow == XRS {
 					sctx = ctx
-					account.Flow = XRD
+					connWriter.Flow = XRD
 				}
-				if account.Flow == XRD {
+				if connWriter.Flow == XRD {
 					xtlsConn.DirectMode = true
 					if sc, ok := xtlsConn.Connection.(syscall.Conn); ok {
 						rawConn, _ = sc.SyscallConn()
 					}
 				}
-				connWriter.Flow = account.Flow
 			} else {
-				return newError(`failed to use ` + account.Flow + `, maybe "security" is not "xtls"`).AtWarning()
+				return newError(`failed to use ` + connWriter.Flow + `, maybe "security" is not "xtls"`).AtWarning()
 			}
 		}
-	case "":
+	default:
 		if _, ok := iConn.(*xtls.Conn); ok {
 			panic(`To avoid misunderstanding, you must fill in Trojan "flow" when using XTLS.`)
 		}
-	default:
-		return newError("unsupported flow " + account.Flow).AtWarning()
 	}
 
 	sessionPolicy := c.policyManager.ForLevel(user.Level)
@@ -144,12 +146,13 @@ func (c *Client) Process(ctx context.Context, link *transport.Link, dialer inter
 	postRequest := func() error {
 		defer timer.SetTimeout(sessionPolicy.Timeouts.DownlinkOnly)
 
-		var bodyWriter buf.Writer
 		bufferWriter := buf.NewBufferedWriter(buf.NewWriter(conn))
+
 		connWriter.Writer = bufferWriter
 		connWriter.Target = destination
 		connWriter.Account = account
 
+		var bodyWriter buf.Writer
 		if destination.Network == net.Network_UDP {
 			bodyWriter = &PacketWriter{Writer: connWriter, Target: destination}
 		} else {
@@ -166,6 +169,11 @@ func (c *Client) Process(ctx context.Context, link *transport.Link, dialer inter
 			return newError("failed to flush payload").Base(err).AtWarning()
 		}
 
+		// Send header if not sent yet
+		if _, err = connWriter.Write([]byte{}); err != nil {
+			return err.(*errors.Error).AtWarning()
+		}
+
 		if err = buf.Copy(link.Reader, bodyWriter, buf.UpdateActivity(timer)); err != nil {
 			return newError("failed to transfer request payload").Base(err).AtInfo()
 		}
@@ -211,6 +219,6 @@ func init() {
 
 	xtlsShow := platform.NewEnvFlag("xray.trojan.xtls.show").GetValue(func() string { return defaultFlagValue })
 	if xtlsShow == "true" {
-		trojanXTLSShow = true
+		xtls_show = true
 	}
 }

proxy/trojan/config.pb.go

@@ -86,11 +86,12 @@ type Fallback struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Alpn string `protobuf:"bytes,1,opt,name=alpn,proto3" json:"alpn,omitempty"`
-	Path string `protobuf:"bytes,2,opt,name=path,proto3" json:"path,omitempty"`
-	Type string `protobuf:"bytes,3,opt,name=type,proto3" json:"type,omitempty"`
-	Dest string `protobuf:"bytes,4,opt,name=dest,proto3" json:"dest,omitempty"`
-	Xver uint64 `protobuf:"varint,5,opt,name=xver,proto3" json:"xver,omitempty"`
+	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	Alpn string `protobuf:"bytes,2,opt,name=alpn,proto3" json:"alpn,omitempty"`
+	Path string `protobuf:"bytes,3,opt,name=path,proto3" json:"path,omitempty"`
+	Type string `protobuf:"bytes,4,opt,name=type,proto3" json:"type,omitempty"`
+	Dest string `protobuf:"bytes,5,opt,name=dest,proto3" json:"dest,omitempty"`
+	Xver uint64 `protobuf:"varint,6,opt,name=xver,proto3" json:"xver,omitempty"`
 }
 
 func (x *Fallback) Reset() {
@@ -125,6 +126,13 @@ func (*Fallback) Descriptor() ([]byte, []int) {
 	return file_proxy_trojan_config_proto_rawDescGZIP(), []int{1}
 }
 
+func (x *Fallback) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
 func (x *Fallback) GetAlpn() string {
 	if x != nil {
 		return x.Alpn
@@ -275,33 +283,34 @@ var file_proxy_trojan_config_proto_rawDesc = []byte{
 	0x07, 0x41, 0x63, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x12, 0x1a, 0x0a, 0x08, 0x70, 0x61, 0x73, 0x73,
 	0x77, 0x6f, 0x72, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x08, 0x70, 0x61, 0x73, 0x73,
 	0x77, 0x6f, 0x72, 0x64, 0x12, 0x12, 0x0a, 0x04, 0x66, 0x6c, 0x6f, 0x77, 0x18, 0x02, 0x20, 0x01,
-	0x28, 0x09, 0x52, 0x04, 0x66, 0x6c, 0x6f, 0x77, 0x22, 0x6e, 0x0a, 0x08, 0x46, 0x61, 0x6c, 0x6c,
-	0x62, 0x61, 0x63, 0x6b, 0x12, 0x12, 0x0a, 0x04, 0x61, 0x6c, 0x70, 0x6e, 0x18, 0x01, 0x20, 0x01,
-	0x28, 0x09, 0x52, 0x04, 0x61, 0x6c, 0x70, 0x6e, 0x12, 0x12, 0x0a, 0x04, 0x70, 0x61, 0x74, 0x68,
-	0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x70, 0x61, 0x74, 0x68, 0x12, 0x12, 0x0a, 0x04,
-	0x74, 0x79, 0x70, 0x65, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x74, 0x79, 0x70, 0x65,
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-	0x6f, 0x33,
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+	0x6c, 0x62, 0x61, 0x63, 0x6b, 0x12, 0x12, 0x0a, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x18, 0x01, 0x20,
+	0x01, 0x28, 0x09, 0x52, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x12, 0x12, 0x0a, 0x04, 0x61, 0x6c, 0x70,
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+	0x04, 0x74, 0x79, 0x70, 0x65, 0x12, 0x12, 0x0a, 0x04, 0x64, 0x65, 0x73, 0x74, 0x18, 0x05, 0x20,
+	0x01, 0x28, 0x09, 0x52, 0x04, 0x64, 0x65, 0x73, 0x74, 0x12, 0x12, 0x0a, 0x04, 0x78, 0x76, 0x65,
+	0x72, 0x18, 0x06, 0x20, 0x01, 0x28, 0x04, 0x52, 0x04, 0x78, 0x76, 0x65, 0x72, 0x22, 0x4c, 0x0a,
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+	0x78, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74,
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+	0x73, 0x65, 0x72, 0x73, 0x18, 0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x1a, 0x2e, 0x78, 0x72, 0x61,
+	0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x63, 0x6f,
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+	0x09, 0x66, 0x61, 0x6c, 0x6c, 0x62, 0x61, 0x63, 0x6b, 0x73, 0x18, 0x03, 0x20, 0x03, 0x28, 0x0b,
+	0x32, 0x1b, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x74, 0x72,
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+	0x61, 0x6c, 0x6c, 0x62, 0x61, 0x63, 0x6b, 0x73, 0x42, 0x55, 0x0a, 0x15, 0x63, 0x6f, 0x6d, 0x2e,
+	0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x74, 0x72, 0x6f, 0x6a, 0x61,
+	0x6e, 0x50, 0x01, 0x5a, 0x26, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f,
+	0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x70,
+	0x72, 0x6f, 0x78, 0x79, 0x2f, 0x74, 0x72, 0x6f, 0x6a, 0x61, 0x6e, 0xaa, 0x02, 0x11, 0x58, 0x72,
+	0x61, 0x79, 0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x54, 0x72, 0x6f, 0x6a, 0x61, 0x6e, 0x62,
+	0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

proxy/trojan/config.proto

@@ -15,11 +15,12 @@ message Account {
 }
 
 message Fallback {
-  string alpn = 1;
-  string path = 2;
-  string type = 3;
-  string dest = 4;
-  uint64 xver = 5;
+  string name = 1;
+  string alpn = 2;
+  string path = 3;
+  string type = 4;
+  string dest = 5;
+  uint64 xver = 6;
 }
 
 message ClientConfig {

proxy/trojan/protocol.go

@@ -28,7 +28,7 @@ var (
 		protocol.AddressFamilyByte(0x03, net.AddressFamilyDomain),
 	)
 
-	trojanXTLSShow = false
+	xtls_show = false
 )
 
 const (
@@ -90,10 +90,10 @@ func (c *ConnWriter) writeHeader() error {
 	command := commandTCP
 	if c.Target.Network == net.Network_UDP {
 		command = commandUDP
-	} else if c.Flow == XRO {
-		command = commandXRO
 	} else if c.Flow == XRD {
 		command = commandXRD
+	} else if c.Flow == XRO {
+		command = commandXRO
 	}
 
 	if _, err := buffer.Write(c.Account.Key); err != nil {
@@ -128,31 +128,21 @@ type PacketWriter struct {
 
 // WriteMultiBuffer implements buf.Writer
 func (w *PacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
-	b := make([]byte, maxLength)
-	for !mb.IsEmpty() {
-		var length int
-		mb, length = buf.SplitBytes(mb, b)
-		if _, err := w.writePacket(b[:length], w.Target); err != nil {
+	for {
+		mb2, b := buf.SplitFirst(mb)
+		mb = mb2
+		if b == nil {
+			break
+		}
+		target := &w.Target
+		if b.UDP != nil {
+			target = b.UDP
+		}
+		if _, err := w.writePacket(b.Bytes(), *target); err != nil {
 			buf.ReleaseMulti(mb)
 			return err
 		}
 	}
-
-	return nil
-}
-
-// WriteMultiBufferWithMetadata writes udp packet with destination specified
-func (w *PacketWriter) WriteMultiBufferWithMetadata(mb buf.MultiBuffer, dest net.Destination) error {
-	b := make([]byte, maxLength)
-	for !mb.IsEmpty() {
-		var length int
-		mb, length = buf.SplitBytes(mb, b)
-		if _, err := w.writePacket(b[:length], dest); err != nil {
-			buf.ReleaseMulti(mb)
-			return err
-		}
-	}
-
 	return nil
 }
 
@@ -211,10 +201,10 @@ func (c *ConnReader) ParseHeader() error {
 	network := net.Network_TCP
 	if command[0] == commandUDP {
 		network = net.Network_UDP
-	} else if command[0] == commandXRO {
-		c.Flow = XRO
 	} else if command[0] == commandXRD {
 		c.Flow = XRD
+	} else if command[0] == commandXRO {
+		c.Flow = XRO
 	}
 
 	addr, port, err := addrParser.ReadAddressPort(nil, c.Reader)
@@ -249,12 +239,6 @@ func (c *ConnReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
 	return buf.MultiBuffer{b}, err
 }
 
-// PacketPayload combines udp payload and destination
-type PacketPayload struct {
-	Target net.Destination
-	Buffer buf.MultiBuffer
-}
-
 // PacketReader is UDP Connection Reader Wrapper for trojan protocol
 type PacketReader struct {
 	io.Reader
@@ -262,15 +246,6 @@ type PacketReader struct {
 
 // ReadMultiBuffer implements buf.Reader
 func (r *PacketReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
-	p, err := r.ReadMultiBufferWithMetadata()
-	if p != nil {
-		return p.Buffer, err
-	}
-	return nil, err
-}
-
-// ReadMultiBufferWithMetadata reads udp packet with destination
-func (r *PacketReader) ReadMultiBufferWithMetadata() (*PacketPayload, error) {
 	addr, port, err := addrParser.ReadAddressPort(nil, r)
 	if err != nil {
 		return nil, newError("failed to read address and port").Base(err)
@@ -300,6 +275,7 @@ func (r *PacketReader) ReadMultiBufferWithMetadata() (*PacketPayload, error) {
 		}
 
 		b := buf.New()
+		b.UDP = &dest
 		mb = append(mb, b)
 		n, err := b.ReadFullFrom(r, int32(length))
 		if err != nil {
@@ -310,7 +286,7 @@ func (r *PacketReader) ReadMultiBufferWithMetadata() (*PacketPayload, error) {
 		remain -= int(n)
 	}
 
-	return &PacketPayload{Target: dest, Buffer: mb}, nil
+	return mb, nil
 }
 
 func ReadV(reader buf.Reader, writer buf.Writer, timer signal.ActivityUpdater, conn *xtls.Conn, rawConn syscall.RawConn, counter stats.Counter, sctx context.Context) error {
@@ -326,6 +302,9 @@ func ReadV(reader buf.Reader, writer buf.Writer, timer signal.ActivityUpdater, c
 						if ok {
 							iConn = statConn.Connection
 						}
+						if xc, ok := iConn.(*xtls.Conn); ok {
+							iConn = xc.Connection
+						}
 						if tc, ok := iConn.(*net.TCPConn); ok {
 							if conn.SHOW {
 								fmt.Println(conn.MARK, "Splice")

proxy/trojan/protocol_test.go

@@ -71,21 +71,22 @@ func TestUDPRequest(t *testing.T) {
 	common.Must(connReader.ParseHeader())
 
 	packetReader := &PacketReader{Reader: connReader}
-	p, err := packetReader.ReadMultiBufferWithMetadata()
+	mb, err := packetReader.ReadMultiBuffer()
 	common.Must(err)
 
-	if p.Buffer.IsEmpty() {
+	if mb.IsEmpty() {
 		t.Error("no request data")
 	}
 
-	if r := cmp.Diff(p.Target, destination); r != "" {
+	mb2, b := buf.SplitFirst(mb)
+	defer buf.ReleaseMulti(mb2)
+
+	dest := *b.UDP
+	if r := cmp.Diff(dest, destination); r != "" {
 		t.Error("destination: ", r)
 	}
 
-	mb, decoded := buf.SplitFirst(p.Buffer)
-	buf.ReleaseMulti(mb)
-
-	if r := cmp.Diff(decoded.Bytes(), payload); r != "" {
+	if r := cmp.Diff(b.Bytes(), payload); r != "" {
 		t.Error("data: ", r)
 	}
 }

proxy/trojan/server.go

@@ -5,6 +5,7 @@ import (
 	"crypto/tls"
 	"io"
 	"strconv"
+	"strings"
 	"syscall"
 	"time"
 
@@ -38,7 +39,7 @@ func init() {
 
 	xtlsShow := platform.NewEnvFlag("xray.trojan.xtls.show").GetValue(func() string { return defaultFlagValue })
 	if xtlsShow == "true" {
-		trojanXTLSShow = true
+		xtls_show = true
 	}
 }
 
@@ -46,7 +47,8 @@ func init() {
 type Server struct {
 	policyManager policy.Manager
 	validator     *Validator
-	fallbacks     map[string]map[string]*Fallback // or nil
+	fallbacks     map[string]map[string]map[string]*Fallback // or nil
+	cone          bool
 }
 
 // NewServer creates a new trojan inbound handler.
@@ -67,22 +69,52 @@ func NewServer(ctx context.Context, config *ServerConfig) (*Server, error) {
 	server := &Server{
 		policyManager: v.GetFeature(policy.ManagerType()).(policy.Manager),
 		validator:     validator,
+		cone:          ctx.Value("cone").(bool),
 	}
 
 	if config.Fallbacks != nil {
-		server.fallbacks = make(map[string]map[string]*Fallback)
+		server.fallbacks = make(map[string]map[string]map[string]*Fallback)
 		for _, fb := range config.Fallbacks {
-			if server.fallbacks[fb.Alpn] == nil {
-				server.fallbacks[fb.Alpn] = make(map[string]*Fallback)
+			if server.fallbacks[fb.Name] == nil {
+				server.fallbacks[fb.Name] = make(map[string]map[string]*Fallback)
 			}
-			server.fallbacks[fb.Alpn][fb.Path] = fb
+			if server.fallbacks[fb.Name][fb.Alpn] == nil {
+				server.fallbacks[fb.Name][fb.Alpn] = make(map[string]*Fallback)
+			}
+			server.fallbacks[fb.Name][fb.Alpn][fb.Path] = fb
 		}
 		if server.fallbacks[""] != nil {
-			for alpn, pfb := range server.fallbacks {
-				if alpn != "" { // && alpn != "h2" {
-					for path, fb := range server.fallbacks[""] {
-						if pfb[path] == nil {
-							pfb[path] = fb
+			for name, apfb := range server.fallbacks {
+				if name != "" {
+					for alpn := range server.fallbacks[""] {
+						if apfb[alpn] == nil {
+							apfb[alpn] = make(map[string]*Fallback)
+						}
+					}
+				}
+			}
+		}
+		for _, apfb := range server.fallbacks {
+			if apfb[""] != nil {
+				for alpn, pfb := range apfb {
+					if alpn != "" { // && alpn != "h2" {
+						for path, fb := range apfb[""] {
+							if pfb[path] == nil {
+								pfb[path] = fb
+							}
+						}
+					}
+				}
+			}
+		}
+		if server.fallbacks[""] != nil {
+			for name, apfb := range server.fallbacks {
+				if name != "" {
+					for alpn, pfb := range server.fallbacks[""] {
+						for path, fb := range pfb {
+							if apfb[alpn][path] == nil {
+								apfb[alpn][path] = fb
+							}
 						}
 					}
 				}
@@ -139,8 +171,8 @@ func (s *Server) Process(ctx context.Context, network net.Network, conn internet
 
 	var user *protocol.MemoryUser
 
-	apfb := s.fallbacks
-	isfb := apfb != nil
+	napfb := s.fallbacks
+	isfb := napfb != nil
 
 	shouldFallback := false
 	if firstLen < 58 || first.Byte(56) != '\r' {
@@ -171,7 +203,7 @@ func (s *Server) Process(ctx context.Context, network net.Network, conn internet
 	}
 
 	if isfb && shouldFallback {
-		return s.fallback(ctx, sid, err, sessionPolicy, conn, iConn, apfb, first, firstLen, bufferedReader)
+		return s.fallback(ctx, sid, err, sessionPolicy, conn, iConn, napfb, first, firstLen, bufferedReader)
 	} else if shouldFallback {
 		return newError("invalid protocol or invalid user")
 	}
@@ -219,7 +251,8 @@ func (s *Server) Process(ctx context.Context, network net.Network, conn internet
 			}
 			if xtlsConn, ok := iConn.(*xtls.Conn); ok {
 				xtlsConn.RPRX = true
-				xtlsConn.SHOW = trojanXTLSShow
+				xtlsConn.SHOW = xtls_show
+				xtlsConn.MARK = "XTLS"
 				if clientReader.Flow == XRD {
 					xtlsConn.DirectMode = true
 					if sc, ok := xtlsConn.Connection.(syscall.Conn); ok {
@@ -230,11 +263,9 @@ func (s *Server) Process(ctx context.Context, network net.Network, conn internet
 				return newError(`failed to use ` + clientReader.Flow + `, maybe "security" is not "xtls"`).AtWarning()
 			}
 		} else {
-			return newError("unable to use ", clientReader.Flow).AtWarning()
+			return newError(account.Password + " is not able to use " + clientReader.Flow).AtWarning()
 		}
 	case "":
-	default:
-		return newError("unsupported flow " + account.Flow).AtWarning()
 	}
 
 	ctx = log.ContextWithAccessMessage(ctx, &log.AccessMessage{
@@ -251,18 +282,27 @@ func (s *Server) Process(ctx context.Context, network net.Network, conn internet
 
 func (s *Server) handleUDPPayload(ctx context.Context, clientReader *PacketReader, clientWriter *PacketWriter, dispatcher routing.Dispatcher) error {
 	udpServer := udp.NewDispatcher(dispatcher, func(ctx context.Context, packet *udp_proto.Packet) {
-		common.Must(clientWriter.WriteMultiBufferWithMetadata(buf.MultiBuffer{packet.Payload}, packet.Source))
+		udpPayload := packet.Payload
+		if udpPayload.UDP == nil {
+			udpPayload.UDP = &packet.Source
+		}
+
+		if err := clientWriter.WriteMultiBuffer(buf.MultiBuffer{udpPayload}); err != nil {
+			newError("failed to write response").Base(err).AtWarning().WriteToLog(session.ExportIDToError(ctx))
+		}
 	})
 
 	inbound := session.InboundFromContext(ctx)
 	user := inbound.User
 
+	var dest *net.Destination
+
 	for {
 		select {
 		case <-ctx.Done():
 			return nil
 		default:
-			p, err := clientReader.ReadMultiBufferWithMetadata()
+			mb, err := clientReader.ReadMultiBuffer()
 			if err != nil {
 				if errors.Cause(err) != io.EOF {
 					return newError("unexpected EOF").Base(err)
@@ -270,17 +310,31 @@ func (s *Server) handleUDPPayload(ctx context.Context, clientReader *PacketReade
 				return nil
 			}
 
-			ctx = log.ContextWithAccessMessage(ctx, &log.AccessMessage{
-				From:   inbound.Source,
-				To:     p.Target,
-				Status: log.AccessAccepted,
-				Reason: "",
-				Email:  user.Email,
-			})
-			newError("tunnelling request to ", p.Target).WriteToLog(session.ExportIDToError(ctx))
+			mb2, b := buf.SplitFirst(mb)
+			if b == nil {
+				continue
+			}
+			destination := *b.UDP
 
-			for _, b := range p.Buffer {
-				udpServer.Dispatch(ctx, p.Target, b)
+			currentPacketCtx := ctx
+			if inbound.Source.IsValid() {
+				currentPacketCtx = log.ContextWithAccessMessage(ctx, &log.AccessMessage{
+					From:   inbound.Source,
+					To:     destination,
+					Status: log.AccessAccepted,
+					Reason: "",
+					Email:  user.Email,
+				})
+			}
+			newError("tunnelling request to ", destination).WriteToLog(session.ExportIDToError(ctx))
+
+			if !s.cone || dest == nil {
+				dest = &destination
+			}
+
+			udpServer.Dispatch(currentPacketCtx, *dest, b) // first packet
+			for _, payload := range mb2 {
+				udpServer.Dispatch(currentPacketCtx, *dest, payload)
 			}
 		}
 	}
@@ -337,25 +391,53 @@ func (s *Server) handleConnection(ctx context.Context, sessionPolicy policy.Sess
 	return nil
 }
 
-func (s *Server) fallback(ctx context.Context, sid errors.ExportOption, err error, sessionPolicy policy.Session, connection internet.Connection, iConn internet.Connection, apfb map[string]map[string]*Fallback, first *buf.Buffer, firstLen int64, reader buf.Reader) error {
+func (s *Server) fallback(ctx context.Context, sid errors.ExportOption, err error, sessionPolicy policy.Session, connection internet.Connection, iConn internet.Connection, napfb map[string]map[string]map[string]*Fallback, first *buf.Buffer, firstLen int64, reader buf.Reader) error {
 	if err := connection.SetReadDeadline(time.Time{}); err != nil {
 		newError("unable to set back read deadline").Base(err).AtWarning().WriteToLog(sid)
 	}
 	newError("fallback starts").Base(err).AtInfo().WriteToLog(sid)
 
+	name := ""
 	alpn := ""
-	if len(apfb) > 1 || apfb[""] == nil {
-		if tlsConn, ok := iConn.(*tls.Conn); ok {
-			alpn = tlsConn.ConnectionState().NegotiatedProtocol
-			newError("realAlpn = " + alpn).AtInfo().WriteToLog(sid)
-		} else if xtlsConn, ok := iConn.(*xtls.Conn); ok {
-			alpn = xtlsConn.ConnectionState().NegotiatedProtocol
-			newError("realAlpn = " + alpn).AtInfo().WriteToLog(sid)
-		}
-		if apfb[alpn] == nil {
-			alpn = ""
+	if tlsConn, ok := iConn.(*tls.Conn); ok {
+		cs := tlsConn.ConnectionState()
+		name = cs.ServerName
+		alpn = cs.NegotiatedProtocol
+		newError("realName = " + name).AtInfo().WriteToLog(sid)
+		newError("realAlpn = " + alpn).AtInfo().WriteToLog(sid)
+	} else if xtlsConn, ok := iConn.(*xtls.Conn); ok {
+		cs := xtlsConn.ConnectionState()
+		name = cs.ServerName
+		alpn = cs.NegotiatedProtocol
+		newError("realName = " + name).AtInfo().WriteToLog(sid)
+		newError("realAlpn = " + alpn).AtInfo().WriteToLog(sid)
+	}
+	name = strings.ToLower(name)
+	alpn = strings.ToLower(alpn)
+
+	if len(napfb) > 1 || napfb[""] == nil {
+		if name != "" && napfb[name] == nil {
+			match := ""
+			for n := range napfb {
+				if n != "" && strings.Contains(name, n) && len(n) > len(match) {
+					match = n
+				}
+			}
+			name = match
 		}
 	}
+
+	if napfb[name] == nil {
+		name = ""
+	}
+	apfb := napfb[name]
+	if apfb == nil {
+		return newError(`failed to find the default "name" config`).AtWarning()
+	}
+
+	if apfb[alpn] == nil {
+		alpn = ""
+	}
 	pfb := apfb[alpn]
 	if pfb == nil {
 		return newError(`failed to find the default "alpn" config`).AtWarning()
@@ -418,38 +500,51 @@ func (s *Server) fallback(ctx context.Context, sid errors.ExportOption, err erro
 	postRequest := func() error {
 		defer timer.SetTimeout(sessionPolicy.Timeouts.DownlinkOnly)
 		if fb.Xver != 0 {
-			remoteAddr, remotePort, err := net.SplitHostPort(connection.RemoteAddr().String())
-			if err != nil {
-				return err
-			}
-			localAddr, localPort, err := net.SplitHostPort(connection.LocalAddr().String())
-			if err != nil {
-				return err
-			}
-			ipv4 := true
-			for i := 0; i < len(remoteAddr); i++ {
-				if remoteAddr[i] == ':' {
-					ipv4 = false
-					break
+			var remoteAddr, remotePort, localAddr, localPort string
+			ipType, network := 0, connection.RemoteAddr().Network()
+			if len(network) >= 3 && network[:3] == "tcp" {
+				var err error
+				remoteAddr, remotePort, err = net.SplitHostPort(connection.RemoteAddr().String())
+				if err != nil {
+					return err
+				}
+				localAddr, localPort, err = net.SplitHostPort(connection.LocalAddr().String())
+				if err != nil {
+					return err
+				}
+				ipType = 4
+				for i := 0; i < len(remoteAddr); i++ {
+					if remoteAddr[i] == ':' {
+						ipType = 6
+						break
+					}
 				}
 			}
 			pro := buf.New()
 			defer pro.Release()
 			switch fb.Xver {
 			case 1:
-				if ipv4 {
+				if ipType == 0 {
+					common.Must2(pro.Write([]byte("PROXY UNKNOWN\r\n")))
+					break
+				}
+				if ipType == 4 {
 					common.Must2(pro.Write([]byte("PROXY TCP4 " + remoteAddr + " " + localAddr + " " + remotePort + " " + localPort + "\r\n")))
 				} else {
 					common.Must2(pro.Write([]byte("PROXY TCP6 " + remoteAddr + " " + localAddr + " " + remotePort + " " + localPort + "\r\n")))
 				}
 			case 2:
-				common.Must2(pro.Write([]byte("\x0D\x0A\x0D\x0A\x00\x0D\x0A\x51\x55\x49\x54\x0A\x21"))) // signature + v2 + PROXY
-				if ipv4 {
-					common.Must2(pro.Write([]byte("\x11\x00\x0C"))) // AF_INET + STREAM + 12 bytes
+				common.Must2(pro.Write([]byte("\x0D\x0A\x0D\x0A\x00\x0D\x0A\x51\x55\x49\x54\x0A"))) // signature
+				if ipType == 0 {
+					common.Must2(pro.Write([]byte("\x20\x00\x00\x00"))) // v2 + LOCAL + UNSPEC + UNSPEC + 0 bytes
+					break
+				}
+				if ipType == 4 {
+					common.Must2(pro.Write([]byte("\x21\x11\x00\x0C"))) // v2 + PROXY + AF_INET + STREAM + 12 bytes
 					common.Must2(pro.Write(net.ParseIP(remoteAddr).To4()))
 					common.Must2(pro.Write(net.ParseIP(localAddr).To4()))
 				} else {
-					common.Must2(pro.Write([]byte("\x21\x00\x24"))) // AF_INET6 + STREAM + 36 bytes
+					common.Must2(pro.Write([]byte("\x21\x21\x00\x24"))) // v2 + PROXY + AF_INET6 + STREAM + 36 bytes
 					common.Must2(pro.Write(net.ParseIP(remoteAddr).To16()))
 					common.Must2(pro.Write(net.ParseIP(localAddr).To16()))
 				}

proxy/vless/encoding/addons.pb.go

@@ -278,10 +278,7 @@ func (m *Addons) Unmarshal(dAtA []byte) error {
 			if err != nil {
 				return err
 			}
-			if skippy < 0 {
-				return ErrInvalidLengthAddons
-			}
-			if (iNdEx + skippy) < 0 {
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
 				return ErrInvalidLengthAddons
 			}
 			if (iNdEx + skippy) > l {

proxy/vless/encoding/encoding.go

@@ -189,6 +189,9 @@ func ReadV(reader buf.Reader, writer buf.Writer, timer signal.ActivityUpdater, c
 						if ok {
 							iConn = statConn.Connection
 						}
+						if xc, ok := iConn.(*xtls.Conn); ok {
+							iConn = xc.Connection
+						}
 						if tc, ok := iConn.(*net.TCPConn); ok {
 							if conn.SHOW {
 								fmt.Println(conn.MARK, "Splice")

proxy/vless/inbound/config.pb.go

@@ -31,11 +31,12 @@ type Fallback struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Alpn string `protobuf:"bytes,1,opt,name=alpn,proto3" json:"alpn,omitempty"`
-	Path string `protobuf:"bytes,2,opt,name=path,proto3" json:"path,omitempty"`
-	Type string `protobuf:"bytes,3,opt,name=type,proto3" json:"type,omitempty"`
-	Dest string `protobuf:"bytes,4,opt,name=dest,proto3" json:"dest,omitempty"`
-	Xver uint64 `protobuf:"varint,5,opt,name=xver,proto3" json:"xver,omitempty"`
+	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	Alpn string `protobuf:"bytes,2,opt,name=alpn,proto3" json:"alpn,omitempty"`
+	Path string `protobuf:"bytes,3,opt,name=path,proto3" json:"path,omitempty"`
+	Type string `protobuf:"bytes,4,opt,name=type,proto3" json:"type,omitempty"`
+	Dest string `protobuf:"bytes,5,opt,name=dest,proto3" json:"dest,omitempty"`
+	Xver uint64 `protobuf:"varint,6,opt,name=xver,proto3" json:"xver,omitempty"`
 }
 
 func (x *Fallback) Reset() {
@@ -70,6 +71,13 @@ func (*Fallback) Descriptor() ([]byte, []int) {
 	return file_proxy_vless_inbound_config_proto_rawDescGZIP(), []int{0}
 }
 
+func (x *Fallback) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
 func (x *Fallback) GetAlpn() string {
 	if x != nil {
 		return x.Alpn
@@ -178,31 +186,33 @@ var file_proxy_vless_inbound_config_proto_rawDesc = []byte{
 	0x74, 0x6f, 0x12, 0x18, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x76,
 	0x6c, 0x65, 0x73, 0x73, 0x2e, 0x69, 0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x1a, 0x1a, 0x63, 0x6f,
 	0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x63, 0x6f, 0x6c, 0x2f, 0x75, 0x73,
-	0x65, 0x72, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0x6e, 0x0a, 0x08, 0x46, 0x61, 0x6c, 0x6c,
-	0x62, 0x61, 0x63, 0x6b, 0x12, 0x12, 0x0a, 0x04, 0x61, 0x6c, 0x70, 0x6e, 0x18, 0x01, 0x20, 0x01,
-	0x28, 0x09, 0x52, 0x04, 0x61, 0x6c, 0x70, 0x6e, 0x12, 0x12, 0x0a, 0x04, 0x70, 0x61, 0x74, 0x68,
-	0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x70, 0x61, 0x74, 0x68, 0x12, 0x12, 0x0a, 0x04,
-	0x74, 0x79, 0x70, 0x65, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x74, 0x79, 0x70, 0x65,
-	0x12, 0x12, 0x0a, 0x04, 0x64, 0x65, 0x73, 0x74, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04,
-	0x64, 0x65, 0x73, 0x74, 0x12, 0x12, 0x0a, 0x04, 0x78, 0x76, 0x65, 0x72, 0x18, 0x05, 0x20, 0x01,
-	0x28, 0x04, 0x52, 0x04, 0x78, 0x76, 0x65, 0x72, 0x22, 0xa0, 0x01, 0x0a, 0x06, 0x43, 0x6f, 0x6e,
-	0x66, 0x69, 0x67, 0x12, 0x34, 0x0a, 0x07, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x73, 0x18, 0x01,
-	0x20, 0x03, 0x28, 0x0b, 0x32, 0x1a, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d,
-	0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x63, 0x6f, 0x6c, 0x2e, 0x55, 0x73, 0x65, 0x72,
-	0x52, 0x07, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x73, 0x12, 0x1e, 0x0a, 0x0a, 0x64, 0x65, 0x63,
-	0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0a, 0x64,
-	0x65, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x40, 0x0a, 0x09, 0x66, 0x61, 0x6c,
-	0x6c, 0x62, 0x61, 0x63, 0x6b, 0x73, 0x18, 0x03, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x22, 0x2e, 0x78,
-	0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x2e,
-	0x69, 0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x2e, 0x46, 0x61, 0x6c, 0x6c, 0x62, 0x61, 0x63, 0x6b,
-	0x52, 0x09, 0x66, 0x61, 0x6c, 0x6c, 0x62, 0x61, 0x63, 0x6b, 0x73, 0x42, 0x6a, 0x0a, 0x1c, 0x63,
-	0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x76, 0x6c,
-	0x65, 0x73, 0x73, 0x2e, 0x69, 0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x50, 0x01, 0x5a, 0x2d, 0x67,
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-	0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2f, 0x76,
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-	0x72, 0x61, 0x79, 0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x56, 0x6c, 0x65, 0x73, 0x73, 0x2e,
-	0x49, 0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+	0x65, 0x72, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0x82, 0x01, 0x0a, 0x08, 0x46, 0x61, 0x6c,
+	0x6c, 0x62, 0x61, 0x63, 0x6b, 0x12, 0x12, 0x0a, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x18, 0x01, 0x20,
+	0x01, 0x28, 0x09, 0x52, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x12, 0x12, 0x0a, 0x04, 0x61, 0x6c, 0x70,
+	0x6e, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x61, 0x6c, 0x70, 0x6e, 0x12, 0x12, 0x0a,
+	0x04, 0x70, 0x61, 0x74, 0x68, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x70, 0x61, 0x74,
+	0x68, 0x12, 0x12, 0x0a, 0x04, 0x74, 0x79, 0x70, 0x65, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52,
+	0x04, 0x74, 0x79, 0x70, 0x65, 0x12, 0x12, 0x0a, 0x04, 0x64, 0x65, 0x73, 0x74, 0x18, 0x05, 0x20,
+	0x01, 0x28, 0x09, 0x52, 0x04, 0x64, 0x65, 0x73, 0x74, 0x12, 0x12, 0x0a, 0x04, 0x78, 0x76, 0x65,
+	0x72, 0x18, 0x06, 0x20, 0x01, 0x28, 0x04, 0x52, 0x04, 0x78, 0x76, 0x65, 0x72, 0x22, 0xa0, 0x01,
+	0x0a, 0x06, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x34, 0x0a, 0x07, 0x63, 0x6c, 0x69, 0x65,
+	0x6e, 0x74, 0x73, 0x18, 0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x1a, 0x2e, 0x78, 0x72, 0x61, 0x79,
+	0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x63, 0x6f, 0x6c,
+	0x2e, 0x55, 0x73, 0x65, 0x72, 0x52, 0x07, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x73, 0x12, 0x1e,
+	0x0a, 0x0a, 0x64, 0x65, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x18, 0x02, 0x20, 0x01,
+	0x28, 0x09, 0x52, 0x0a, 0x64, 0x65, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x40,
+	0x0a, 0x09, 0x66, 0x61, 0x6c, 0x6c, 0x62, 0x61, 0x63, 0x6b, 0x73, 0x18, 0x03, 0x20, 0x03, 0x28,
+	0x0b, 0x32, 0x22, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x76,
+	0x6c, 0x65, 0x73, 0x73, 0x2e, 0x69, 0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x2e, 0x46, 0x61, 0x6c,
+	0x6c, 0x62, 0x61, 0x63, 0x6b, 0x52, 0x09, 0x66, 0x61, 0x6c, 0x6c, 0x62, 0x61, 0x63, 0x6b, 0x73,
+	0x42, 0x6a, 0x0a, 0x1c, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f,
+	0x78, 0x79, 0x2e, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x2e, 0x69, 0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64,
+	0x50, 0x01, 0x5a, 0x2d, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78,
+	0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x70, 0x72,
+	0x6f, 0x78, 0x79, 0x2f, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x2f, 0x69, 0x6e, 0x62, 0x6f, 0x75, 0x6e,
+	0x64, 0xaa, 0x02, 0x18, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x56,
+	0x6c, 0x65, 0x73, 0x73, 0x2e, 0x49, 0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x62, 0x06, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

proxy/vless/inbound/config.proto

@@ -9,11 +9,12 @@ option java_multiple_files = true;
 import "common/protocol/user.proto";
 
 message Fallback {
-  string alpn = 1;
-  string path = 2;
-  string type = 3;
-  string dest = 4;
-  uint64 xver = 5;
+  string name = 1;
+  string alpn = 2;
+  string path = 3;
+  string type = 4;
+  string dest = 5;
+  uint64 xver = 6;
 }
 
 message Config {

proxy/vless/inbound/inbound.go

@@ -6,6 +6,7 @@ import (
 	"context"
 	"io"
 	"strconv"
+	"strings"
 	"syscall"
 	"time"
 
@@ -63,7 +64,7 @@ type Handler struct {
 	policyManager         policy.Manager
 	validator             *vless.Validator
 	dns                   dns.Client
-	fallbacks             map[string]map[string]*Fallback // or nil
+	fallbacks             map[string]map[string]map[string]*Fallback // or nil
 	// regexps               map[string]*regexp.Regexp       // or nil
 }
 
@@ -88,13 +89,16 @@ func New(ctx context.Context, config *Config, dc dns.Client) (*Handler, error) {
 	}
 
 	if config.Fallbacks != nil {
-		handler.fallbacks = make(map[string]map[string]*Fallback)
+		handler.fallbacks = make(map[string]map[string]map[string]*Fallback)
 		// handler.regexps = make(map[string]*regexp.Regexp)
 		for _, fb := range config.Fallbacks {
-			if handler.fallbacks[fb.Alpn] == nil {
-				handler.fallbacks[fb.Alpn] = make(map[string]*Fallback)
+			if handler.fallbacks[fb.Name] == nil {
+				handler.fallbacks[fb.Name] = make(map[string]map[string]*Fallback)
 			}
-			handler.fallbacks[fb.Alpn][fb.Path] = fb
+			if handler.fallbacks[fb.Name][fb.Alpn] == nil {
+				handler.fallbacks[fb.Name][fb.Alpn] = make(map[string]*Fallback)
+			}
+			handler.fallbacks[fb.Name][fb.Alpn][fb.Path] = fb
 			/*
 				if fb.Path != "" {
 					if r, err := regexp.Compile(fb.Path); err != nil {
@@ -106,11 +110,37 @@ func New(ctx context.Context, config *Config, dc dns.Client) (*Handler, error) {
 			*/
 		}
 		if handler.fallbacks[""] != nil {
-			for alpn, pfb := range handler.fallbacks {
-				if alpn != "" { // && alpn != "h2" {
-					for path, fb := range handler.fallbacks[""] {
-						if pfb[path] == nil {
-							pfb[path] = fb
+			for name, apfb := range handler.fallbacks {
+				if name != "" {
+					for alpn := range handler.fallbacks[""] {
+						if apfb[alpn] == nil {
+							apfb[alpn] = make(map[string]*Fallback)
+						}
+					}
+				}
+			}
+		}
+		for _, apfb := range handler.fallbacks {
+			if apfb[""] != nil {
+				for alpn, pfb := range apfb {
+					if alpn != "" { // && alpn != "h2" {
+						for path, fb := range apfb[""] {
+							if pfb[path] == nil {
+								pfb[path] = fb
+							}
+						}
+					}
+				}
+			}
+		}
+		if handler.fallbacks[""] != nil {
+			for name, apfb := range handler.fallbacks {
+				if name != "" {
+					for alpn, pfb := range handler.fallbacks[""] {
+						for path, fb := range pfb {
+							if apfb[alpn][path] == nil {
+								apfb[alpn][path] = fb
+							}
 						}
 					}
 				}
@@ -171,8 +201,8 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection i
 	var requestAddons *encoding.Addons
 	var err error
 
-	apfb := h.fallbacks
-	isfb := apfb != nil
+	napfb := h.fallbacks
+	isfb := napfb != nil
 
 	if isfb && firstLen < 18 {
 		err = newError("fallback directly")
@@ -187,19 +217,47 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection i
 			}
 			newError("fallback starts").Base(err).AtInfo().WriteToLog(sid)
 
+			name := ""
 			alpn := ""
-			if len(apfb) > 1 || apfb[""] == nil {
-				if tlsConn, ok := iConn.(*tls.Conn); ok {
-					alpn = tlsConn.ConnectionState().NegotiatedProtocol
-					newError("realAlpn = " + alpn).AtInfo().WriteToLog(sid)
-				} else if xtlsConn, ok := iConn.(*xtls.Conn); ok {
-					alpn = xtlsConn.ConnectionState().NegotiatedProtocol
-					newError("realAlpn = " + alpn).AtInfo().WriteToLog(sid)
-				}
-				if apfb[alpn] == nil {
-					alpn = ""
+			if tlsConn, ok := iConn.(*tls.Conn); ok {
+				cs := tlsConn.ConnectionState()
+				name = cs.ServerName
+				alpn = cs.NegotiatedProtocol
+				newError("realName = " + name).AtInfo().WriteToLog(sid)
+				newError("realAlpn = " + alpn).AtInfo().WriteToLog(sid)
+			} else if xtlsConn, ok := iConn.(*xtls.Conn); ok {
+				cs := xtlsConn.ConnectionState()
+				name = cs.ServerName
+				alpn = cs.NegotiatedProtocol
+				newError("realName = " + name).AtInfo().WriteToLog(sid)
+				newError("realAlpn = " + alpn).AtInfo().WriteToLog(sid)
+			}
+			name = strings.ToLower(name)
+			alpn = strings.ToLower(alpn)
+
+			if len(napfb) > 1 || napfb[""] == nil {
+				if name != "" && napfb[name] == nil {
+					match := ""
+					for n := range napfb {
+						if n != "" && strings.Contains(name, n) && len(n) > len(match) {
+							match = n
+						}
+					}
+					name = match
 				}
 			}
+
+			if napfb[name] == nil {
+				name = ""
+			}
+			apfb := napfb[name]
+			if apfb == nil {
+				return newError(`failed to find the default "name" config`).AtWarning()
+			}
+
+			if apfb[alpn] == nil {
+				alpn = ""
+			}
 			pfb := apfb[alpn]
 			if pfb == nil {
 				return newError(`failed to find the default "alpn" config`).AtWarning()
@@ -277,39 +335,51 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection i
 			postRequest := func() error {
 				defer timer.SetTimeout(sessionPolicy.Timeouts.DownlinkOnly)
 				if fb.Xver != 0 {
-					remoteAddr, remotePort, err := net.SplitHostPort(connection.RemoteAddr().String())
-					if err != nil {
-						return err
-					}
-					localAddr, localPort, err := net.SplitHostPort(connection.LocalAddr().String())
-					if err != nil {
-						return err
-					}
-					ipv4 := true
-					for i := 0; i < len(remoteAddr); i++ {
-						if remoteAddr[i] == ':' {
-							ipv4 = false
-							break
+					var remoteAddr, remotePort, localAddr, localPort string
+					ipType, network := 0, connection.RemoteAddr().Network()
+					if len(network) >= 3 && network[:3] == "tcp" {
+						var err error
+						remoteAddr, remotePort, err = net.SplitHostPort(connection.RemoteAddr().String())
+						if err != nil {
+							return err
+						}
+						localAddr, localPort, err = net.SplitHostPort(connection.LocalAddr().String())
+						if err != nil {
+							return err
+						}
+						ipType = 4
+						for i := 0; i < len(remoteAddr); i++ {
+							if remoteAddr[i] == ':' {
+								ipType = 6
+								break
+							}
 						}
 					}
 					pro := buf.New()
 					defer pro.Release()
 					switch fb.Xver {
 					case 1:
-						if ipv4 {
+						if ipType == 0 {
+							pro.Write([]byte("PROXY UNKNOWN\r\n"))
+							break
+						}
+						if ipType == 4 {
 							pro.Write([]byte("PROXY TCP4 " + remoteAddr + " " + localAddr + " " + remotePort + " " + localPort + "\r\n"))
 						} else {
 							pro.Write([]byte("PROXY TCP6 " + remoteAddr + " " + localAddr + " " + remotePort + " " + localPort + "\r\n"))
 						}
-
 					case 2:
-						pro.Write([]byte("\x0D\x0A\x0D\x0A\x00\x0D\x0A\x51\x55\x49\x54\x0A\x21")) // signature + v2 + PROXY
-						if ipv4 {
-							pro.Write([]byte("\x11\x00\x0C")) // AF_INET + STREAM + 12 bytes
+						pro.Write([]byte("\x0D\x0A\x0D\x0A\x00\x0D\x0A\x51\x55\x49\x54\x0A")) // signature
+						if ipType == 0 {
+							pro.Write([]byte("\x20\x00\x00\x00")) // v2 + LOCAL + UNSPEC + UNSPEC + 0 bytes
+							break
+						}
+						if ipType == 4 {
+							pro.Write([]byte("\x21\x11\x00\x0C")) // v2 + PROXY + AF_INET + STREAM + 12 bytes
 							pro.Write(net.ParseIP(remoteAddr).To4())
 							pro.Write(net.ParseIP(localAddr).To4())
 						} else {
-							pro.Write([]byte("\x21\x00\x24")) // AF_INET6 + STREAM + 36 bytes
+							pro.Write([]byte("\x21\x21\x00\x24")) // v2 + PROXY + AF_INET6 + STREAM + 36 bytes
 							pro.Write(net.ParseIP(remoteAddr).To16())
 							pro.Write(net.ParseIP(localAddr).To16())
 						}

proxy/vmess/encoding/encoding_test.go

@@ -57,14 +57,14 @@ func TestRequestSerialization(t *testing.T) {
 	defer common.Close(userValidator)
 
 	server := NewServerSession(userValidator, sessionHistory)
-	actualRequest, err := server.DecodeRequestHeader(buffer)
+	actualRequest, err := server.DecodeRequestHeader(buffer, false)
 	common.Must(err)
 
 	if r := cmp.Diff(actualRequest, expectedRequest, cmp.AllowUnexported(protocol.ID{})); r != "" {
 		t.Error(r)
 	}
 
-	_, err = server.DecodeRequestHeader(buffer2)
+	_, err = server.DecodeRequestHeader(buffer2, false)
 	// anti replay attack
 	if err == nil {
 		t.Error("nil error")
@@ -107,7 +107,7 @@ func TestInvalidRequest(t *testing.T) {
 	defer common.Close(userValidator)
 
 	server := NewServerSession(userValidator, sessionHistory)
-	_, err := server.DecodeRequestHeader(buffer)
+	_, err := server.DecodeRequestHeader(buffer, false)
 	if err == nil {
 		t.Error("nil error")
 	}
@@ -148,7 +148,7 @@ func TestMuxRequest(t *testing.T) {
 	defer common.Close(userValidator)
 
 	server := NewServerSession(userValidator, sessionHistory)
-	actualRequest, err := server.DecodeRequestHeader(buffer)
+	actualRequest, err := server.DecodeRequestHeader(buffer, false)
 	common.Must(err)
 
 	if r := cmp.Diff(actualRequest, expectedRequest, cmp.AllowUnexported(protocol.ID{})); r != "" {

proxy/vmess/encoding/server.go

@@ -131,7 +131,7 @@ func parseSecurityType(b byte) protocol.SecurityType {
 }
 
 // DecodeRequestHeader decodes and returns (if successful) a RequestHeader from an input stream.
-func (s *ServerSession) DecodeRequestHeader(reader io.Reader) (*protocol.RequestHeader, error) {
+func (s *ServerSession) DecodeRequestHeader(reader io.Reader, isDrain bool) (*protocol.RequestHeader, error) {
 	buffer := buf.New()
 	behaviorRand := dice.NewDeterministicDice(int64(s.userValidator.GetBehaviorSeed()))
 	BaseDrainSize := behaviorRand.Roll(3266)
@@ -143,7 +143,7 @@ func (s *ServerSession) DecodeRequestHeader(reader io.Reader) (*protocol.Request
 	drainConnection := func(e error) error {
 		// We read a deterministic generated length of data before closing the connection to offset padding read pattern
 		readSizeRemain -= int(buffer.Len())
-		if readSizeRemain > 0 {
+		if readSizeRemain > 0 && isDrain {
 			err := s.DrainConnN(reader, readSizeRemain)
 			if err != nil {
 				return newError("failed to drain connection DrainSize = ", BaseDrainSize, " ", RandDrainMax, " ", RandDrainRolled).Base(err).Base(e)

proxy/vmess/inbound/inbound.go

@@ -220,9 +220,18 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection i
 		return newError("unable to set read deadline").Base(err).AtWarning()
 	}
 
+	iConn := connection
+	if statConn, ok := iConn.(*internet.StatCouterConnection); ok {
+		iConn = statConn.Connection
+	}
+	_, isDrain := iConn.(*net.TCPConn)
+	if !isDrain {
+		_, isDrain = iConn.(*net.UnixConn)
+	}
+
 	reader := &buf.BufferedReader{Reader: buf.NewReader(connection)}
 	svrSession := encoding.NewServerSession(h.clients, h.sessionHistory)
-	request, err := svrSession.DecodeRequestHeader(reader)
+	request, err := svrSession.DecodeRequestHeader(reader, isDrain)
 	if err != nil {
 		if errors.Cause(err) != io.EOF {
 			log.Record(&log.AccessMessage{

testing/scenarios/shadowsocks_test.go

@@ -52,10 +52,10 @@ func TestShadowsocksAES256TCP(t *testing.T) {
 					Listen:    net.NewIPOrDomain(net.LocalHostIP),
 				}),
 				ProxySettings: serial.ToTypedMessage(&shadowsocks.ServerConfig{
-					User: &protocol.User{
+					Users: []*protocol.User{{
 						Account: account,
 						Level:   1,
-					},
+					}},
 					Network: []net.Network{net.Network_TCP},
 				}),
 			},
@@ -150,10 +150,10 @@ func TestShadowsocksAES128UDP(t *testing.T) {
 					Listen:    net.NewIPOrDomain(net.LocalHostIP),
 				}),
 				ProxySettings: serial.ToTypedMessage(&shadowsocks.ServerConfig{
-					User: &protocol.User{
+					Users: []*protocol.User{{
 						Account: account,
 						Level:   1,
-					},
+					}},
 					Network: []net.Network{net.Network_UDP},
 				}),
 			},
@@ -276,10 +276,10 @@ func TestShadowsocksChacha20TCP(t *testing.T) {
 					Listen:    net.NewIPOrDomain(net.LocalHostIP),
 				}),
 				ProxySettings: serial.ToTypedMessage(&shadowsocks.ServerConfig{
-					User: &protocol.User{
+					Users: []*protocol.User{{
 						Account: account,
 						Level:   1,
-					},
+					}},
 					Network: []net.Network{net.Network_TCP},
 				}),
 			},
@@ -369,10 +369,10 @@ func TestShadowsocksChacha20Poly1305TCP(t *testing.T) {
 					Listen:    net.NewIPOrDomain(net.LocalHostIP),
 				}),
 				ProxySettings: serial.ToTypedMessage(&shadowsocks.ServerConfig{
-					User: &protocol.User{
+					Users: []*protocol.User{{
 						Account: account,
 						Level:   1,
-					},
+					}},
 					Network: []net.Network{net.Network_TCP},
 				}),
 			},
@@ -461,10 +461,10 @@ func TestShadowsocksAES256GCMTCP(t *testing.T) {
 					Listen:    net.NewIPOrDomain(net.LocalHostIP),
 				}),
 				ProxySettings: serial.ToTypedMessage(&shadowsocks.ServerConfig{
-					User: &protocol.User{
+					Users: []*protocol.User{{
 						Account: account,
 						Level:   1,
-					},
+					}},
 					Network: []net.Network{net.Network_TCP},
 				}),
 			},
@@ -560,10 +560,10 @@ func TestShadowsocksAES128GCMUDP(t *testing.T) {
 					Listen:    net.NewIPOrDomain(net.LocalHostIP),
 				}),
 				ProxySettings: serial.ToTypedMessage(&shadowsocks.ServerConfig{
-					User: &protocol.User{
+					Users: []*protocol.User{{
 						Account: account,
 						Level:   1,
-					},
+					}},
 					Network: []net.Network{net.Network_UDP},
 				}),
 			},
@@ -658,10 +658,10 @@ func TestShadowsocksAES128GCMUDPMux(t *testing.T) {
 					Listen:    net.NewIPOrDomain(net.LocalHostIP),
 				}),
 				ProxySettings: serial.ToTypedMessage(&shadowsocks.ServerConfig{
-					User: &protocol.User{
+					Users: []*protocol.User{{
 						Account: account,
 						Level:   1,
-					},
+					}},
 					Network: []net.Network{net.Network_TCP},
 				}),
 			},
@@ -757,10 +757,10 @@ func TestShadowsocksNone(t *testing.T) {
 					Listen:    net.NewIPOrDomain(net.LocalHostIP),
 				}),
 				ProxySettings: serial.ToTypedMessage(&shadowsocks.ServerConfig{
-					User: &protocol.User{
+					Users: []*protocol.User{{
 						Account: account,
 						Level:   1,
-					},
+					}},
 					Network: []net.Network{net.Network_TCP},
 				}),
 			},

testing/scenarios/transport_test.go

@@ -136,8 +136,8 @@ func TestHTTPConnectionHeader(t *testing.T) {
 }
 
 func TestDomainSocket(t *testing.T) {
-	if runtime.GOOS == "windows" {
-		t.Skip("Not supported on windows")
+	if runtime.GOOS == "windows" || runtime.GOOS == "android" {
+		t.Skip("Not supported on windows or android")
 		return
 	}
 	tcpServer := tcp.Server{

transport/internet/domainsocket/listener_test.go

@@ -1,4 +1,5 @@
 // +build !windows
+// +build !android
 
 package domainsocket_test
 

transport/internet/http/dialer.go

@@ -10,6 +10,7 @@ import (
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/net/cnc"
 	"github.com/xtls/xray-core/transport/internet"
 	"github.com/xtls/xray-core/transport/internet/tls"
 	"github.com/xtls/xray-core/transport/pipe"
@@ -21,7 +22,7 @@ var (
 	globalDialerAccess sync.Mutex
 )
 
-func getHTTPClient(_ context.Context, dest net.Destination, tlsSettings *tls.Config) (*http.Client, error) {
+func getHTTPClient(ctx context.Context, dest net.Destination, tlsSettings *tls.Config) (*http.Client, error) {
 	globalDialerAccess.Lock()
 	defer globalDialerAccess.Unlock()
 
@@ -48,7 +49,7 @@ func getHTTPClient(_ context.Context, dest net.Destination, tlsSettings *tls.Con
 			}
 			address := net.ParseAddress(rawHost)
 
-			pconn, err := internet.DialSystem(context.Background(), net.TCPDestination(address, port), nil)
+			pconn, err := internet.DialSystem(ctx, net.TCPDestination(address, port), nil)
 			if err != nil {
 				return nil, err
 			}
@@ -124,10 +125,10 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
 
 	bwriter := buf.NewBufferedWriter(pwriter)
 	common.Must(bwriter.SetBuffered(false))
-	return net.NewConnection(
-		net.ConnectionOutput(response.Body),
-		net.ConnectionInput(bwriter),
-		net.ConnectionOnClose(common.ChainedClosable{breader, bwriter, response.Body}),
+	return cnc.NewConnection(
+		cnc.ConnectionOutput(response.Body),
+		cnc.ConnectionInput(bwriter),
+		cnc.ConnectionOnClose(common.ChainedClosable{breader, bwriter, response.Body}),
 	), nil
 }
 

transport/internet/http/hub.go

@@ -2,10 +2,8 @@ package http
 
 import (
 	"context"
-	"fmt"
 	"io"
 	"net/http"
-	"os"
 	"strings"
 	"time"
 
@@ -14,6 +12,7 @@ import (
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/net/cnc"
 	http_proto "github.com/xtls/xray-core/common/protocol/http"
 	"github.com/xtls/xray-core/common/serial"
 	"github.com/xtls/xray-core/common/session"
@@ -36,7 +35,6 @@ func (l *Listener) Addr() net.Addr {
 
 func (l *Listener) Close() error {
 	if l.locker != nil {
-		fmt.Fprintln(os.Stderr, "RELEASE LOCK")
 		l.locker.Release()
 	}
 	return l.server.Close()
@@ -88,21 +86,21 @@ func (l *Listener) ServeHTTP(writer http.ResponseWriter, request *http.Request)
 		}
 	}
 
-	forwardedAddrs := http_proto.ParseXForwardedFor(request.Header)
-	if len(forwardedAddrs) > 0 && forwardedAddrs[0].Family().IsIP() {
+	forwardedAddress := http_proto.ParseXForwardedFor(request.Header)
+	if len(forwardedAddress) > 0 && forwardedAddress[0].Family().IsIP() {
 		remoteAddr = &net.TCPAddr{
-			IP:   forwardedAddrs[0].IP(),
-			Port: int(0),
+			IP:   forwardedAddress[0].IP(),
+			Port: 0,
 		}
 	}
 
 	done := done.New()
-	conn := net.NewConnection(
-		net.ConnectionOutput(request.Body),
-		net.ConnectionInput(flushWriter{w: writer, d: done}),
-		net.ConnectionOnClose(common.ChainedClosable{done, request.Body}),
-		net.ConnectionLocalAddr(l.Addr()),
-		net.ConnectionRemoteAddr(remoteAddr),
+	conn := cnc.NewConnection(
+		cnc.ConnectionOutput(request.Body),
+		cnc.ConnectionInput(flushWriter{w: writer, d: done}),
+		cnc.ConnectionOnClose(common.ChainedClosable{done, request.Body}),
+		cnc.ConnectionLocalAddr(l.Addr()),
+		cnc.ConnectionRemoteAddr(remoteAddr),
 	)
 	l.handler(conn)
 	<-done.Wait()
@@ -164,7 +162,7 @@ func Listen(ctx context.Context, address net.Address, port net.Port, streamSetti
 				Net:  "unix",
 			}, streamSettings.SocketSettings)
 			if err != nil {
-				newError("failed to listen on ", address).Base(err).WriteToLog(session.ExportIDToError(ctx))
+				newError("failed to listen on ", address).Base(err).AtError().WriteToLog(session.ExportIDToError(ctx))
 				return
 			}
 			locker := ctx.Value(address.Domain())
@@ -177,7 +175,7 @@ func Listen(ctx context.Context, address net.Address, port net.Port, streamSetti
 				Port: int(port),
 			}, streamSettings.SocketSettings)
 			if err != nil {
-				newError("failed to listen on ", address, ":", port).Base(err).WriteToLog(session.ExportIDToError(ctx))
+				newError("failed to listen on ", address, ":", port).Base(err).AtError().WriteToLog(session.ExportIDToError(ctx))
 				return
 			}
 		}
@@ -185,12 +183,12 @@ func Listen(ctx context.Context, address net.Address, port net.Port, streamSetti
 		if config == nil {
 			err = server.Serve(streamListener)
 			if err != nil {
-				newError("stoping serving H2C").Base(err).WriteToLog(session.ExportIDToError(ctx))
+				newError("stopping serving H2C").Base(err).WriteToLog(session.ExportIDToError(ctx))
 			}
 		} else {
 			err = server.ServeTLS(streamListener, "", "")
 			if err != nil {
-				newError("stoping serving TLS").Base(err).WriteToLog(session.ExportIDToError(ctx))
+				newError("stopping serving TLS").Base(err).WriteToLog(session.ExportIDToError(ctx))
 			}
 		}
 	}()

transport/internet/system_dialer.go

@@ -60,7 +60,7 @@ func (d *DefaultSystemDialer) Dial(ctx context.Context, src net.Address, dest ne
 		if err != nil {
 			return nil, err
 		}
-		return &packetConnWrapper{
+		return &PacketConnWrapper{
 			conn: packetConn,
 			dest: destAddr,
 		}, nil
@@ -98,41 +98,49 @@ func (d *DefaultSystemDialer) Dial(ctx context.Context, src net.Address, dest ne
 	return dialer.DialContext(ctx, dest.Network.SystemString(), dest.NetAddr())
 }
 
-type packetConnWrapper struct {
+type PacketConnWrapper struct {
 	conn net.PacketConn
 	dest net.Addr
 }
 
-func (c *packetConnWrapper) Close() error {
+func (c *PacketConnWrapper) Close() error {
 	return c.conn.Close()
 }
 
-func (c *packetConnWrapper) LocalAddr() net.Addr {
+func (c *PacketConnWrapper) LocalAddr() net.Addr {
 	return c.conn.LocalAddr()
 }
 
-func (c *packetConnWrapper) RemoteAddr() net.Addr {
+func (c *PacketConnWrapper) RemoteAddr() net.Addr {
 	return c.dest
 }
 
-func (c *packetConnWrapper) Write(p []byte) (int, error) {
+func (c *PacketConnWrapper) Write(p []byte) (int, error) {
 	return c.conn.WriteTo(p, c.dest)
 }
 
-func (c *packetConnWrapper) Read(p []byte) (int, error) {
+func (c *PacketConnWrapper) Read(p []byte) (int, error) {
 	n, _, err := c.conn.ReadFrom(p)
 	return n, err
 }
 
-func (c *packetConnWrapper) SetDeadline(t time.Time) error {
+func (c *PacketConnWrapper) WriteTo(p []byte, d net.Addr) (int, error) {
+	return c.conn.WriteTo(p, d)
+}
+
+func (c *PacketConnWrapper) ReadFrom(p []byte) (int, net.Addr, error) {
+	return c.conn.ReadFrom(p)
+}
+
+func (c *PacketConnWrapper) SetDeadline(t time.Time) error {
 	return c.conn.SetDeadline(t)
 }
 
-func (c *packetConnWrapper) SetReadDeadline(t time.Time) error {
+func (c *PacketConnWrapper) SetReadDeadline(t time.Time) error {
 	return c.conn.SetReadDeadline(t)
 }
 
-func (c *packetConnWrapper) SetWriteDeadline(t time.Time) error {
+func (c *PacketConnWrapper) SetWriteDeadline(t time.Time) error {
 	return c.conn.SetWriteDeadline(t)
 }
 

transport/internet/system_listener.go

@@ -54,7 +54,7 @@ func (dl *DefaultListener) Listen(ctx context.Context, addr net.Addr, sockopt *S
 		lc.Control = nil
 		network = addr.Network()
 		address = addr.Name
-		if runtime.GOOS == "linux" && address[0] == '@' {
+		if (runtime.GOOS == "linux" || runtime.GOOS == "android") && address[0] == '@' {
 			// linux abstract unix domain socket is lockfree
 			if len(address) > 1 && address[1] == '@' {
 				// but may need padding to work with haproxy

transport/internet/tcp/hub.go

@@ -48,7 +48,7 @@ func ListenTCP(ctx context.Context, address net.Address, port net.Port, streamSe
 			Net:  "unix",
 		}, streamSettings.SocketSettings)
 		if err != nil {
-			return nil, newError("failed to listen Unix Doman Socket on ", address).Base(err)
+			return nil, newError("failed to listen Unix Domain Socket on ", address).Base(err)
 		}
 		newError("listening Unix Domain Socket on ", address).WriteToLog(session.ExportIDToError(ctx))
 		locker := ctx.Value(address.Domain())

transport/internet/tls/config.go

@@ -8,6 +8,7 @@ import (
 	"time"
 
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/ocsp"
 	"github.com/xtls/xray-core/common/protocol/tls/cert"
 	"github.com/xtls/xray-core/transport/internet"
 )
@@ -53,6 +54,19 @@ func (c *Config) BuildCertificates() []tls.Certificate {
 			continue
 		}
 		certs = append(certs, keyPair)
+		if entry.OcspStapling != 0 {
+			go func(cert *tls.Certificate) {
+				t := time.NewTicker(time.Duration(entry.OcspStapling) * time.Second)
+				for {
+					if newData, err := ocsp.GetOCSPForCert(cert.Certificate); err != nil {
+						newError("ignoring invalid OCSP").Base(err).AtWarning().WriteToLog()
+					} else if string(newData) != string(cert.OCSPStaple) {
+						cert.OCSPStaple = newData
+					}
+					<-t.C
+				}
+			}(&certs[len(certs)-1])
+		}
 	}
 	return certs
 }
@@ -180,7 +194,7 @@ func (c *Config) GetTLSConfig(opts ...Option) *tls.Config {
 			RootCAs:                root,
 			InsecureSkipVerify:     false,
 			NextProtos:             nil,
-			SessionTicketsDisabled: false,
+			SessionTicketsDisabled: true,
 		}
 	}
 
@@ -189,7 +203,7 @@ func (c *Config) GetTLSConfig(opts ...Option) *tls.Config {
 		RootCAs:                root,
 		InsecureSkipVerify:     c.AllowInsecure,
 		NextProtos:             c.NextProtocol,
-		SessionTicketsDisabled: c.DisableSessionResumption,
+		SessionTicketsDisabled: !c.EnableSessionResumption,
 	}
 
 	for _, opt := range opts {
@@ -212,6 +226,42 @@ func (c *Config) GetTLSConfig(opts ...Option) *tls.Config {
 		config.NextProtos = []string{"h2", "http/1.1"}
 	}
 
+	switch c.MinVersion {
+	case "1.0":
+		config.MinVersion = tls.VersionTLS10
+	case "1.1":
+		config.MinVersion = tls.VersionTLS11
+	case "1.2":
+		config.MinVersion = tls.VersionTLS12
+	case "1.3":
+		config.MinVersion = tls.VersionTLS13
+	}
+
+	switch c.MaxVersion {
+	case "1.0":
+		config.MaxVersion = tls.VersionTLS10
+	case "1.1":
+		config.MaxVersion = tls.VersionTLS11
+	case "1.2":
+		config.MaxVersion = tls.VersionTLS12
+	case "1.3":
+		config.MaxVersion = tls.VersionTLS13
+	}
+
+	if len(c.CipherSuites) > 0 {
+		id := make(map[string]uint16)
+		for _, s := range tls.CipherSuites() {
+			id[s.Name] = s.ID
+		}
+		for _, n := range strings.Split(c.CipherSuites, ":") {
+			if id[n] != 0 {
+				config.CipherSuites = append(config.CipherSuites, id[n])
+			}
+		}
+	}
+
+	config.PreferServerCipherSuites = c.PreferServerCipherSuites
+
 	return config
 }
 

transport/internet/tls/config.pb.go

@@ -80,10 +80,11 @@ type Certificate struct {
 	unknownFields protoimpl.UnknownFields
 
 	// TLS certificate in x509 format.
-	Certificate []byte `protobuf:"bytes,1,opt,name=Certificate,proto3" json:"Certificate,omitempty"`
+	Certificate []byte `protobuf:"bytes,1,opt,name=certificate,proto3" json:"certificate,omitempty"`
 	// TLS key in x509 format.
-	Key   []byte            `protobuf:"bytes,2,opt,name=Key,proto3" json:"Key,omitempty"`
-	Usage Certificate_Usage `protobuf:"varint,3,opt,name=usage,proto3,enum=xray.transport.internet.tls.Certificate_Usage" json:"usage,omitempty"`
+	Key          []byte            `protobuf:"bytes,2,opt,name=key,proto3" json:"key,omitempty"`
+	Usage        Certificate_Usage `protobuf:"varint,3,opt,name=usage,proto3,enum=xray.transport.internet.tls.Certificate_Usage" json:"usage,omitempty"`
+	OcspStapling int64             `protobuf:"varint,4,opt,name=ocsp_stapling,json=ocspStapling,proto3" json:"ocsp_stapling,omitempty"`
 }
 
 func (x *Certificate) Reset() {
@@ -139,6 +140,13 @@ func (x *Certificate) GetUsage() Certificate_Usage {
 	return Certificate_ENCIPHERMENT
 }
 
+func (x *Certificate) GetOcspStapling() int64 {
+	if x != nil {
+		return x.OcspStapling
+	}
+	return 0
+}
+
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -146,19 +154,25 @@ type Config struct {
 
 	// Whether or not to allow self-signed certificates.
 	AllowInsecure bool `protobuf:"varint,1,opt,name=allow_insecure,json=allowInsecure,proto3" json:"allow_insecure,omitempty"`
-	// Whether or not to allow insecure cipher suites.
-	AllowInsecureCiphers bool `protobuf:"varint,5,opt,name=allow_insecure_ciphers,json=allowInsecureCiphers,proto3" json:"allow_insecure_ciphers,omitempty"`
 	// List of certificates to be served on server.
 	Certificate []*Certificate `protobuf:"bytes,2,rep,name=certificate,proto3" json:"certificate,omitempty"`
 	// Override server name.
 	ServerName string `protobuf:"bytes,3,opt,name=server_name,json=serverName,proto3" json:"server_name,omitempty"`
 	// Lists of string as ALPN values.
 	NextProtocol []string `protobuf:"bytes,4,rep,name=next_protocol,json=nextProtocol,proto3" json:"next_protocol,omitempty"`
-	// Whether or not to disable session (ticket) resumption.
-	DisableSessionResumption bool `protobuf:"varint,6,opt,name=disable_session_resumption,json=disableSessionResumption,proto3" json:"disable_session_resumption,omitempty"`
+	// Whether or not to enable session (ticket) resumption.
+	EnableSessionResumption bool `protobuf:"varint,5,opt,name=enable_session_resumption,json=enableSessionResumption,proto3" json:"enable_session_resumption,omitempty"`
 	// If true, root certificates on the system will not be loaded for
 	// verification.
-	DisableSystemRoot bool `protobuf:"varint,7,opt,name=disable_system_root,json=disableSystemRoot,proto3" json:"disable_system_root,omitempty"`
+	DisableSystemRoot bool `protobuf:"varint,6,opt,name=disable_system_root,json=disableSystemRoot,proto3" json:"disable_system_root,omitempty"`
+	// The minimum TLS version.
+	MinVersion string `protobuf:"bytes,7,opt,name=min_version,json=minVersion,proto3" json:"min_version,omitempty"`
+	// The maximum TLS version.
+	MaxVersion string `protobuf:"bytes,8,opt,name=max_version,json=maxVersion,proto3" json:"max_version,omitempty"`
+	// Specify cipher suites, except for TLS 1.3.
+	CipherSuites string `protobuf:"bytes,9,opt,name=cipher_suites,json=cipherSuites,proto3" json:"cipher_suites,omitempty"`
+	// Whether the server selects its most preferred ciphersuite.
+	PreferServerCipherSuites bool `protobuf:"varint,10,opt,name=prefer_server_cipher_suites,json=preferServerCipherSuites,proto3" json:"prefer_server_cipher_suites,omitempty"`
 }
 
 func (x *Config) Reset() {
@@ -200,13 +214,6 @@ func (x *Config) GetAllowInsecure() bool {
 	return false
 }
 
-func (x *Config) GetAllowInsecureCiphers() bool {
-	if x != nil {
-		return x.AllowInsecureCiphers
-	}
-	return false
-}
-
 func (x *Config) GetCertificate() []*Certificate {
 	if x != nil {
 		return x.Certificate
@@ -228,9 +235,9 @@ func (x *Config) GetNextProtocol() []string {
 	return nil
 }
 
-func (x *Config) GetDisableSessionResumption() bool {
+func (x *Config) GetEnableSessionResumption() bool {
 	if x != nil {
-		return x.DisableSessionResumption
+		return x.EnableSessionResumption
 	}
 	return false
 }
@@ -242,6 +249,34 @@ func (x *Config) GetDisableSystemRoot() bool {
 	return false
 }
 
+func (x *Config) GetMinVersion() string {
+	if x != nil {
+		return x.MinVersion
+	}
+	return ""
+}
+
+func (x *Config) GetMaxVersion() string {
+	if x != nil {
+		return x.MaxVersion
+	}
+	return ""
+}
+
+func (x *Config) GetCipherSuites() string {
+	if x != nil {
+		return x.CipherSuites
+	}
+	return ""
+}
+
+func (x *Config) GetPreferServerCipherSuites() bool {
+	if x != nil {
+		return x.PreferServerCipherSuites
+	}
+	return false
+}
+
 var File_transport_internet_tls_config_proto protoreflect.FileDescriptor
 
 var file_transport_internet_tls_config_proto_rawDesc = []byte{
@@ -249,50 +284,59 @@ var file_transport_internet_tls_config_proto_rawDesc = []byte{
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+	0x6c, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

transport/internet/tls/config.proto

@@ -8,10 +8,10 @@ option java_multiple_files = true;
 
 message Certificate {
   // TLS certificate in x509 format.
-  bytes Certificate = 1;
+  bytes certificate = 1;
 
   // TLS key in x509 format.
-  bytes Key = 2;
+  bytes key = 2;
 
   enum Usage {
     ENCIPHERMENT = 0;
@@ -20,15 +20,14 @@ message Certificate {
   }
 
   Usage usage = 3;
+
+  int64 ocsp_stapling = 4;
 }
 
 message Config {
   // Whether or not to allow self-signed certificates.
   bool allow_insecure = 1;
 
-  // Whether or not to allow insecure cipher suites.
-  bool allow_insecure_ciphers = 5;
-
   // List of certificates to be served on server.
   repeated Certificate certificate = 2;
 
@@ -38,10 +37,22 @@ message Config {
   // Lists of string as ALPN values.
   repeated string next_protocol = 4;
 
-  // Whether or not to disable session (ticket) resumption.
-  bool disable_session_resumption = 6;
+  // Whether or not to enable session (ticket) resumption.
+  bool enable_session_resumption = 5;
 
   // If true, root certificates on the system will not be loaded for
   // verification.
-  bool disable_system_root = 7;
+  bool disable_system_root = 6;
+
+  // The minimum TLS version.
+  string min_version = 7;
+
+  // The maximum TLS version.
+  string max_version = 8;
+
+  // Specify cipher suites, except for TLS 1.3.
+  string cipher_suites = 9;
+
+  // Whether the server selects its most preferred ciphersuite.
+  bool prefer_server_cipher_suites = 10;
 }

transport/internet/tls/config_test.go

@@ -64,9 +64,7 @@ func TestExpiredCertificate(t *testing.T) {
 }
 
 func TestInsecureCertificates(t *testing.T) {
-	c := &Config{
-		AllowInsecureCiphers: true,
-	}
+	c := &Config{}
 
 	tlsConfig := c.GetTLSConfig()
 	if len(tlsConfig.CipherSuites) > 0 {

transport/internet/udp/dispatcher.go

@@ -66,7 +66,7 @@ func (v *Dispatcher) getInboundRay(ctx context.Context, dest net.Destination) *c
 		cancel()
 		v.RemoveRay(dest)
 	}
-	timer := signal.CancelAfterInactivity(ctx, removeRay, time.Second*4)
+	timer := signal.CancelAfterInactivity(ctx, removeRay, time.Minute)
 	link, _ := v.dispatcher.Dispatch(ctx, dest)
 	entry := &connEntry{
 		link:   link,

transport/internet/xtls/config.go

@@ -2,12 +2,14 @@ package xtls
 
 import (
 	"crypto/x509"
+	"strings"
 	"sync"
 	"time"
 
 	xtls "github.com/xtls/go"
 
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/ocsp"
 	"github.com/xtls/xray-core/common/protocol/tls/cert"
 	"github.com/xtls/xray-core/transport/internet"
 )
@@ -51,6 +53,19 @@ func (c *Config) BuildCertificates() []xtls.Certificate {
 			continue
 		}
 		certs = append(certs, keyPair)
+		if entry.OcspStapling != 0 {
+			go func(cert *xtls.Certificate) {
+				t := time.NewTicker(time.Duration(entry.OcspStapling) * time.Second)
+				for {
+					if newData, err := ocsp.GetOCSPForCert(cert.Certificate); err != nil {
+						newError("ignoring invalid OCSP").Base(err).AtWarning().WriteToLog()
+					} else if string(newData) != string(cert.OCSPStaple) {
+						cert.OCSPStaple = newData
+					}
+					<-t.C
+				}
+			}(&certs[len(certs)-1])
+		}
 	}
 	return certs
 }
@@ -170,7 +185,7 @@ func (c *Config) GetXTLSConfig(opts ...Option) *xtls.Config {
 			RootCAs:                root,
 			InsecureSkipVerify:     false,
 			NextProtos:             nil,
-			SessionTicketsDisabled: false,
+			SessionTicketsDisabled: true,
 		}
 	}
 
@@ -179,7 +194,7 @@ func (c *Config) GetXTLSConfig(opts ...Option) *xtls.Config {
 		RootCAs:                root,
 		InsecureSkipVerify:     c.AllowInsecure,
 		NextProtos:             c.NextProtocol,
-		SessionTicketsDisabled: c.DisableSessionResumption,
+		SessionTicketsDisabled: !c.EnableSessionResumption,
 	}
 
 	for _, opt := range opts {
@@ -202,6 +217,42 @@ func (c *Config) GetXTLSConfig(opts ...Option) *xtls.Config {
 		config.NextProtos = []string{"h2", "http/1.1"}
 	}
 
+	switch c.MinVersion {
+	case "1.0":
+		config.MinVersion = xtls.VersionTLS10
+	case "1.1":
+		config.MinVersion = xtls.VersionTLS11
+	case "1.2":
+		config.MinVersion = xtls.VersionTLS12
+	case "1.3":
+		config.MinVersion = xtls.VersionTLS13
+	}
+
+	switch c.MaxVersion {
+	case "1.0":
+		config.MaxVersion = xtls.VersionTLS10
+	case "1.1":
+		config.MaxVersion = xtls.VersionTLS11
+	case "1.2":
+		config.MaxVersion = xtls.VersionTLS12
+	case "1.3":
+		config.MaxVersion = xtls.VersionTLS13
+	}
+
+	if len(c.CipherSuites) > 0 {
+		id := make(map[string]uint16)
+		for _, s := range xtls.CipherSuites() {
+			id[s.Name] = s.ID
+		}
+		for _, n := range strings.Split(c.CipherSuites, ":") {
+			if id[n] != 0 {
+				config.CipherSuites = append(config.CipherSuites, id[n])
+			}
+		}
+	}
+
+	config.PreferServerCipherSuites = c.PreferServerCipherSuites
+
 	return config
 }
 

transport/internet/xtls/config.pb.go

@@ -79,11 +79,12 @@ type Certificate struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	// XTLS certificate in x509 format.
-	Certificate []byte `protobuf:"bytes,1,opt,name=Certificate,proto3" json:"Certificate,omitempty"`
-	// XTLS key in x509 format.
-	Key   []byte            `protobuf:"bytes,2,opt,name=Key,proto3" json:"Key,omitempty"`
-	Usage Certificate_Usage `protobuf:"varint,3,opt,name=usage,proto3,enum=xray.transport.internet.xtls.Certificate_Usage" json:"usage,omitempty"`
+	// TLS certificate in x509 format.
+	Certificate []byte `protobuf:"bytes,1,opt,name=certificate,proto3" json:"certificate,omitempty"`
+	// TLS key in x509 format.
+	Key          []byte            `protobuf:"bytes,2,opt,name=key,proto3" json:"key,omitempty"`
+	Usage        Certificate_Usage `protobuf:"varint,3,opt,name=usage,proto3,enum=xray.transport.internet.xtls.Certificate_Usage" json:"usage,omitempty"`
+	OcspStapling int64             `protobuf:"varint,4,opt,name=ocsp_stapling,json=ocspStapling,proto3" json:"ocsp_stapling,omitempty"`
 }
 
 func (x *Certificate) Reset() {
@@ -139,6 +140,13 @@ func (x *Certificate) GetUsage() Certificate_Usage {
 	return Certificate_ENCIPHERMENT
 }
 
+func (x *Certificate) GetOcspStapling() int64 {
+	if x != nil {
+		return x.OcspStapling
+	}
+	return 0
+}
+
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -146,19 +154,25 @@ type Config struct {
 
 	// Whether or not to allow self-signed certificates.
 	AllowInsecure bool `protobuf:"varint,1,opt,name=allow_insecure,json=allowInsecure,proto3" json:"allow_insecure,omitempty"`
-	// Whether or not to allow insecure cipher suites.
-	AllowInsecureCiphers bool `protobuf:"varint,5,opt,name=allow_insecure_ciphers,json=allowInsecureCiphers,proto3" json:"allow_insecure_ciphers,omitempty"`
 	// List of certificates to be served on server.
 	Certificate []*Certificate `protobuf:"bytes,2,rep,name=certificate,proto3" json:"certificate,omitempty"`
 	// Override server name.
 	ServerName string `protobuf:"bytes,3,opt,name=server_name,json=serverName,proto3" json:"server_name,omitempty"`
 	// Lists of string as ALPN values.
 	NextProtocol []string `protobuf:"bytes,4,rep,name=next_protocol,json=nextProtocol,proto3" json:"next_protocol,omitempty"`
-	// Whether or not to disable session (ticket) resumption.
-	DisableSessionResumption bool `protobuf:"varint,6,opt,name=disable_session_resumption,json=disableSessionResumption,proto3" json:"disable_session_resumption,omitempty"`
+	// Whether or not to enable session (ticket) resumption.
+	EnableSessionResumption bool `protobuf:"varint,5,opt,name=enable_session_resumption,json=enableSessionResumption,proto3" json:"enable_session_resumption,omitempty"`
 	// If true, root certificates on the system will not be loaded for
 	// verification.
-	DisableSystemRoot bool `protobuf:"varint,7,opt,name=disable_system_root,json=disableSystemRoot,proto3" json:"disable_system_root,omitempty"`
+	DisableSystemRoot bool `protobuf:"varint,6,opt,name=disable_system_root,json=disableSystemRoot,proto3" json:"disable_system_root,omitempty"`
+	// The minimum TLS version.
+	MinVersion string `protobuf:"bytes,7,opt,name=min_version,json=minVersion,proto3" json:"min_version,omitempty"`
+	// The maximum TLS version.
+	MaxVersion string `protobuf:"bytes,8,opt,name=max_version,json=maxVersion,proto3" json:"max_version,omitempty"`
+	// Specify cipher suites, except for TLS 1.3.
+	CipherSuites string `protobuf:"bytes,9,opt,name=cipher_suites,json=cipherSuites,proto3" json:"cipher_suites,omitempty"`
+	// Whether the server selects its most preferred ciphersuite.
+	PreferServerCipherSuites bool `protobuf:"varint,10,opt,name=prefer_server_cipher_suites,json=preferServerCipherSuites,proto3" json:"prefer_server_cipher_suites,omitempty"`
 }
 
 func (x *Config) Reset() {
@@ -200,13 +214,6 @@ func (x *Config) GetAllowInsecure() bool {
 	return false
 }
 
-func (x *Config) GetAllowInsecureCiphers() bool {
-	if x != nil {
-		return x.AllowInsecureCiphers
-	}
-	return false
-}
-
 func (x *Config) GetCertificate() []*Certificate {
 	if x != nil {
 		return x.Certificate
@@ -228,9 +235,9 @@ func (x *Config) GetNextProtocol() []string {
 	return nil
 }
 
-func (x *Config) GetDisableSessionResumption() bool {
+func (x *Config) GetEnableSessionResumption() bool {
 	if x != nil {
-		return x.DisableSessionResumption
+		return x.EnableSessionResumption
 	}
 	return false
 }
@@ -242,6 +249,34 @@ func (x *Config) GetDisableSystemRoot() bool {
 	return false
 }
 
+func (x *Config) GetMinVersion() string {
+	if x != nil {
+		return x.MinVersion
+	}
+	return ""
+}
+
+func (x *Config) GetMaxVersion() string {
+	if x != nil {
+		return x.MaxVersion
+	}
+	return ""
+}
+
+func (x *Config) GetCipherSuites() string {
+	if x != nil {
+		return x.CipherSuites
+	}
+	return ""
+}
+
+func (x *Config) GetPreferServerCipherSuites() bool {
+	if x != nil {
+		return x.PreferServerCipherSuites
+	}
+	return false
+}
+
 var File_transport_internet_xtls_config_proto protoreflect.FileDescriptor
 
 var file_transport_internet_xtls_config_proto_rawDesc = []byte{
@@ -249,50 +284,60 @@ var file_transport_internet_xtls_config_proto_rawDesc = []byte{
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+	0x33,
 }
 
 var (

transport/internet/xtls/config.proto

@@ -7,11 +7,11 @@ option java_package = "com.xray.transport.internet.xtls";
 option java_multiple_files = true;
 
 message Certificate {
-  // XTLS certificate in x509 format.
-  bytes Certificate = 1;
+  // TLS certificate in x509 format.
+  bytes certificate = 1;
 
-  // XTLS key in x509 format.
-  bytes Key = 2;
+  // TLS key in x509 format.
+  bytes key = 2;
 
   enum Usage {
     ENCIPHERMENT = 0;
@@ -20,15 +20,14 @@ message Certificate {
   }
 
   Usage usage = 3;
+
+  int64 ocsp_stapling = 4;
 }
 
 message Config {
   // Whether or not to allow self-signed certificates.
   bool allow_insecure = 1;
 
-  // Whether or not to allow insecure cipher suites.
-  bool allow_insecure_ciphers = 5;
-
   // List of certificates to be served on server.
   repeated Certificate certificate = 2;
 
@@ -38,10 +37,22 @@ message Config {
   // Lists of string as ALPN values.
   repeated string next_protocol = 4;
 
-  // Whether or not to disable session (ticket) resumption.
-  bool disable_session_resumption = 6;
+  // Whether or not to enable session (ticket) resumption.
+  bool enable_session_resumption = 5;
 
   // If true, root certificates on the system will not be loaded for
   // verification.
-  bool disable_system_root = 7;
+  bool disable_system_root = 6;
+
+  // The minimum TLS version.
+  string min_version = 7;
+
+  // The maximum TLS version.
+  string max_version = 8;
+
+  // Specify cipher suites, except for TLS 1.3.
+  string cipher_suites = 9;
+
+  // Whether the server selects its most preferred ciphersuite.
+  bool prefer_server_cipher_suites = 10;
 }