Use nfsAEAD & pfsAEAD for paddings; Refine comments

https://github.com/XTLS/Xray-core/pull/4952#issuecomment-3210125349

373558ed7a (r164355865)

.github/workflows/docker.yml

@@ -38,6 +38,9 @@ jobs:
           if [[ -z "$SOURCE_TAG" ]]; then
             SOURCE_TAG="${{ github.ref_name }}"
           fi
+          if [[ -z "$SOURCE_TAG" ]]; then
+            SOURCE_TAG="${{ github.event.release.tag_name }}"
+          fi
 
           if [[ -z "$SOURCE_TAG" ]]; then
             echo "Error: Could not determine a valid tag source. Input tag and context tag (github.ref_name) are both empty."

README.md

@@ -1,18 +1,18 @@
 # Project X
 
-[![Project X NFT](https://raw2.seadn.io/ethereum/0x5ee362866001613093361eb8569d59c4141b76d1/7fa9ce900fb39b44226348db330e32/8b7fa9ce900fb39b44226348db330e32.svg)](https://opensea.io/item/ethereum/0x5ee362866001613093361eb8569d59c4141b76d1/1)
-
-### [Collect a Project X NFT to support the development of Project X!](https://opensea.io/item/ethereum/0x5ee362866001613093361eb8569d59c4141b76d1/1)
-
 [Project X](https://github.com/XTLS) originates from XTLS protocol, providing a set of network tools such as [Xray-core](https://github.com/XTLS/Xray-core) and [REALITY](https://github.com/XTLS/REALITY).
 
 [README](https://github.com/XTLS/Xray-core#readme) is open, so feel free to submit your project [here](https://github.com/XTLS/Xray-core/pulls).
 
 ## Donation & NFTs
 
+### [Collect a Project X NFT to support the development of Project X!](https://opensea.io/item/ethereum/0x5ee362866001613093361eb8569d59c4141b76d1/1)
+
+[<img alt="Project X NFT" width="150px" src="https://raw2.seadn.io/ethereum/0x5ee362866001613093361eb8569d59c4141b76d1/7fa9ce900fb39b44226348db330e32/8b7fa9ce900fb39b44226348db330e32.svg" />](https://opensea.io/item/ethereum/0x5ee362866001613093361eb8569d59c4141b76d1/1)
+
 - **ETH/USDT/USDC: `0xDc3Fe44F0f25D13CACb1C4896CD0D321df3146Ee`**
-- **Project X NFT: [Announcement of NFTs by Project X](https://github.com/XTLS/Xray-core/discussions/3633)**
-- **REALITY NFT: [XHTTP: Beyond REALITY](https://github.com/XTLS/Xray-core/discussions/4113)**
+- **REALITY NFT: https://opensea.io/item/ethereum/0x5ee362866001613093361eb8569d59c4141b76d1/2**
+- **Related links: https://opensea.io/collection/xtls, [Announcement of NFTs by Project X](https://github.com/XTLS/Xray-core/discussions/3633), [XHTTP: Beyond REALITY](https://github.com/XTLS/Xray-core/discussions/4113)**
 
 ## License
 

app/proxyman/inbound/inbound.go

@@ -17,7 +17,7 @@ import (
 // Manager manages all inbound handlers.
 type Manager struct {
 	access          sync.RWMutex
-	untaggedHandler []inbound.Handler
+	untaggedHandlers []inbound.Handler
 	taggedHandlers  map[string]inbound.Handler
 	running         bool
 }
@@ -47,7 +47,7 @@ func (m *Manager) AddHandler(ctx context.Context, handler inbound.Handler) error
 		}
 		m.taggedHandlers[tag] = handler
 	} else {
-		m.untaggedHandler = append(m.untaggedHandler, handler)
+		m.untaggedHandlers = append(m.untaggedHandlers, handler)
 	}
 
 	if m.running {
@@ -94,8 +94,8 @@ func (m *Manager) ListHandlers(ctx context.Context) []inbound.Handler {
 	m.access.RLock()
 	defer m.access.RUnlock()
 
-	var response []inbound.Handler
-	copy(m.untaggedHandler, response)
+	response := make([]inbound.Handler, len(m.untaggedHandlers))
+	copy(response, m.untaggedHandlers)
 
 	for _, v := range m.taggedHandlers {
 		response = append(response, v)
@@ -117,7 +117,7 @@ func (m *Manager) Start() error {
 		}
 	}
 
-	for _, handler := range m.untaggedHandler {
+	for _, handler := range m.untaggedHandlers {
 		if err := handler.Start(); err != nil {
 			return err
 		}
@@ -138,7 +138,7 @@ func (m *Manager) Close() error {
 			errs = append(errs, err)
 		}
 	}
-	for _, handler := range m.untaggedHandler {
+	for _, handler := range m.untaggedHandlers {
 		if err := handler.Close(); err != nil {
 			errs = append(errs, err)
 		}

app/proxyman/inbound/worker.go

@@ -91,6 +91,7 @@ func (w *tcpWorker) callback(conn stat.Connection) {
 	}
 	ctx = session.ContextWithInbound(ctx, &session.Inbound{
 		Source:  net.DestinationFromAddr(conn.RemoteAddr()),
+		Local:   net.DestinationFromAddr(conn.LocalAddr()),
 		Gateway: net.TCPDestination(w.address, w.port),
 		Tag:     w.tag,
 		Conn:    conn,
@@ -321,8 +322,10 @@ func (w *udpWorker) callback(b *buf.Buffer, source net.Destination, originalDest
 				outbounds[0].Target = originalDest
 			}
 			ctx = session.ContextWithOutbounds(ctx, outbounds)
+
 			ctx = session.ContextWithInbound(ctx, &session.Inbound{
 				Source:  source,
+				Local:   net.DestinationFromAddr(w.hub.Addr()),
 				Gateway: net.UDPDestination(w.address, w.port),
 				Tag:     w.tag,
 			})
@@ -472,6 +475,7 @@ func (w *dsWorker) callback(conn stat.Connection) {
 	}
 	ctx = session.ContextWithInbound(ctx, &session.Inbound{
 		Source:  net.DestinationFromAddr(conn.RemoteAddr()),
+		Local:   net.DestinationFromAddr(conn.LocalAddr()),
 		Gateway: net.UnixDestination(w.address),
 		Tag:     w.tag,
 		Conn:    conn,

app/proxyman/outbound/outbound.go

@@ -150,8 +150,8 @@ func (m *Manager) ListHandlers(ctx context.Context) []outbound.Handler {
 	m.access.RLock()
 	defer m.access.RUnlock()
 
-	var response []outbound.Handler
-	copy(m.untaggedHandlers, response)
+	response := make([]outbound.Handler, len(m.untaggedHandlers))
+	copy(response, m.untaggedHandlers)
 
 	for _, v := range m.taggedHandler {
 		response = append(response, v)

app/router/command/command.pb.go

@@ -42,6 +42,8 @@ type RoutingContext struct {
 	Attributes        map[string]string `protobuf:"bytes,10,rep,name=Attributes,proto3" json:"Attributes,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
 	OutboundGroupTags []string          `protobuf:"bytes,11,rep,name=OutboundGroupTags,proto3" json:"OutboundGroupTags,omitempty"`
 	OutboundTag       string            `protobuf:"bytes,12,opt,name=OutboundTag,proto3" json:"OutboundTag,omitempty"`
+	LocalIPs          [][]byte          `protobuf:"bytes,13,rep,name=LocalIPs,proto3" json:"LocalIPs,omitempty"`
+	LocalPort         uint32            `protobuf:"varint,14,opt,name=LocalPort,proto3" json:"LocalPort,omitempty"`
 }
 
 func (x *RoutingContext) Reset() {
@@ -158,6 +160,20 @@ func (x *RoutingContext) GetOutboundTag() string {
 	return ""
 }
 
+func (x *RoutingContext) GetLocalIPs() [][]byte {
+	if x != nil {
+		return x.LocalIPs
+	}
+	return nil
+}
+
+func (x *RoutingContext) GetLocalPort() uint32 {
+	if x != nil {
+		return x.LocalPort
+	}
+	return 0
+}
+
 // SubscribeRoutingStatsRequest subscribes to routing statistics channel if
 // opened by xray-core.
 // * FieldSelectors selects a subset of fields in routing statistics to return.
@@ -827,7 +843,7 @@ var file_app_router_command_command_proto_rawDesc = []byte{
 	0x6d, 0x6f, 0x6e, 0x2f, 0x6e, 0x65, 0x74, 0x2f, 0x6e, 0x65, 0x74, 0x77, 0x6f, 0x72, 0x6b, 0x2e,
 	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x1a, 0x21, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x73, 0x65,
 	0x72, 0x69, 0x61, 0x6c, 0x2f, 0x74, 0x79, 0x70, 0x65, 0x64, 0x5f, 0x6d, 0x65, 0x73, 0x73, 0x61,
-	0x67, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0x9c, 0x04, 0x0a, 0x0e, 0x52, 0x6f, 0x75,
+	0x67, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xd6, 0x04, 0x0a, 0x0e, 0x52, 0x6f, 0x75,
 	0x74, 0x69, 0x6e, 0x67, 0x43, 0x6f, 0x6e, 0x74, 0x65, 0x78, 0x74, 0x12, 0x1e, 0x0a, 0x0a, 0x49,
 	0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x54, 0x61, 0x67, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52,
 	0x0a, 0x49, 0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x54, 0x61, 0x67, 0x12, 0x32, 0x0a, 0x07, 0x4e,
@@ -857,123 +873,127 @@ var file_app_router_command_command_proto_rawDesc = []byte{
 	0x03, 0x28, 0x09, 0x52, 0x11, 0x4f, 0x75, 0x74, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x47, 0x72, 0x6f,
 	0x75, 0x70, 0x54, 0x61, 0x67, 0x73, 0x12, 0x20, 0x0a, 0x0b, 0x4f, 0x75, 0x74, 0x62, 0x6f, 0x75,
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+	0x6f, 0x75, 0x74, 0x65, 0x72, 0x2e, 0x43, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x62, 0x06, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

app/router/command/command.proto

@@ -25,6 +25,8 @@ message RoutingContext {
   map<string, string> Attributes = 10;
   repeated string OutboundGroupTags = 11;
   string OutboundTag = 12;
+  repeated bytes LocalIPs = 13;
+  uint32 LocalPort = 14;
 }
 
 // SubscribeRoutingStatsRequest subscribes to routing statistics channel if

app/router/command/config.go

@@ -28,6 +28,14 @@ func (c routingContext) GetTargetPort() net.Port {
 	return net.Port(c.RoutingContext.GetTargetPort())
 }
 
+func (c routingContext) GetLocalIPs() []net.IP {
+	return mapBytesToIPs(c.RoutingContext.GetLocalIPs())
+}
+
+func (c routingContext) GetLocalPort() net.Port {
+	return net.Port(c.RoutingContext.GetLocalPort())
+}
+
 func (c routingContext) GetRuleTag() string {
 	return ""
 }
@@ -54,8 +62,10 @@ var fieldMap = map[string]func(*RoutingContext, routing.Route){
 	"network":        func(s *RoutingContext, r routing.Route) { s.Network = r.GetNetwork() },
 	"ip_source":      func(s *RoutingContext, r routing.Route) { s.SourceIPs = mapIPsToBytes(r.GetSourceIPs()) },
 	"ip_target":      func(s *RoutingContext, r routing.Route) { s.TargetIPs = mapIPsToBytes(r.GetTargetIPs()) },
+	"ip_local":       func(s *RoutingContext, r routing.Route) { s.LocalIPs = mapIPsToBytes(r.GetLocalIPs()) },
 	"port_source":    func(s *RoutingContext, r routing.Route) { s.SourcePort = uint32(r.GetSourcePort()) },
 	"port_target":    func(s *RoutingContext, r routing.Route) { s.TargetPort = uint32(r.GetTargetPort()) },
+	"port_local":     func(s *RoutingContext, r routing.Route) { s.LocalPort = uint32(r.GetLocalPort()) },
 	"domain":         func(s *RoutingContext, r routing.Route) { s.TargetDomain = r.GetTargetDomain() },
 	"protocol":       func(s *RoutingContext, r routing.Route) { s.Protocol = r.GetProtocol() },
 	"user":           func(s *RoutingContext, r routing.Route) { s.User = r.GetUser() },

app/router/condition.go

@@ -113,10 +113,10 @@ func (m *DomainMatcher) Apply(ctx routing.Context) bool {
 
 type MultiGeoIPMatcher struct {
 	matchers []*GeoIPMatcher
-	onSource bool
+	asType   string // local, source, target
 }
 
-func NewMultiGeoIPMatcher(geoips []*GeoIP, onSource bool) (*MultiGeoIPMatcher, error) {
+func NewMultiGeoIPMatcher(geoips []*GeoIP, asType string) (*MultiGeoIPMatcher, error) {
 	var matchers []*GeoIPMatcher
 	for _, geoip := range geoips {
 		matcher, err := GlobalGeoIPContainer.Add(geoip)
@@ -128,7 +128,7 @@ func NewMultiGeoIPMatcher(geoips []*GeoIP, onSource bool) (*MultiGeoIPMatcher, e
 
 	matcher := &MultiGeoIPMatcher{
 		matchers: matchers,
-		onSource: onSource,
+		asType:   asType,
 	}
 
 	return matcher, nil
@@ -137,11 +137,18 @@ func NewMultiGeoIPMatcher(geoips []*GeoIP, onSource bool) (*MultiGeoIPMatcher, e
 // Apply implements Condition.
 func (m *MultiGeoIPMatcher) Apply(ctx routing.Context) bool {
 	var ips []net.IP
-	if m.onSource {
+
+	switch m.asType {
+	case "local":
+		ips = ctx.GetLocalIPs()
+	case "source":
 		ips = ctx.GetSourceIPs()
-	} else {
+	case "target":
 		ips = ctx.GetTargetIPs()
+	default:
+		panic("unreachable, asType should be local or source or target")
 	}
+
 	for _, ip := range ips {
 		for _, matcher := range m.matchers {
 			if matcher.Match(ip) {
@@ -153,25 +160,31 @@ func (m *MultiGeoIPMatcher) Apply(ctx routing.Context) bool {
 }
 
 type PortMatcher struct {
-	port     net.MemoryPortList
-	onSource bool
+	port   net.MemoryPortList
+	asType string // local, source, target
 }
 
-// NewPortMatcher create a new port matcher that can match source or destination port
-func NewPortMatcher(list *net.PortList, onSource bool) *PortMatcher {
+// NewPortMatcher create a new port matcher that can match source or local or destination port
+func NewPortMatcher(list *net.PortList, asType string) *PortMatcher {
 	return &PortMatcher{
-		port:     net.PortListFromProto(list),
-		onSource: onSource,
+		port:   net.PortListFromProto(list),
+		asType: asType,
 	}
 }
 
 // Apply implements Condition.
 func (v *PortMatcher) Apply(ctx routing.Context) bool {
-	if v.onSource {
+	switch v.asType {
+	case "local":
+		return v.port.Contains(ctx.GetLocalPort())
+	case "source":
 		return v.port.Contains(ctx.GetSourcePort())
-	} else {
+	case "target":
 		return v.port.Contains(ctx.GetTargetPort())
+	default:
+		panic("unreachable, asType should be local or source or target")
 	}
+
 }
 
 type NetworkMatcher struct {

app/router/condition_test.go

@@ -495,7 +495,7 @@ func BenchmarkMultiGeoIPMatcher(b *testing.B) {
 		})
 	}
 
-	matcher, err := NewMultiGeoIPMatcher(geoips, false)
+	matcher, err := NewMultiGeoIPMatcher(geoips, "target")
 	common.Must(err)
 
 	ctx := withOutbound(&session.Outbound{Target: net.TCPDestination(net.ParseAddress("8.8.8.8"), 80)})

app/router/config.go

@@ -61,11 +61,15 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 	}
 
 	if rr.PortList != nil {
-		conds.Add(NewPortMatcher(rr.PortList, false))
+		conds.Add(NewPortMatcher(rr.PortList, "target"))
 	}
 
 	if rr.SourcePortList != nil {
-		conds.Add(NewPortMatcher(rr.SourcePortList, true))
+		conds.Add(NewPortMatcher(rr.SourcePortList, "source"))
+	}
+
+	if rr.LocalPortList != nil {
+		conds.Add(NewPortMatcher(rr.LocalPortList, "local"))
 	}
 
 	if len(rr.Networks) > 0 {
@@ -73,7 +77,7 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 	}
 
 	if len(rr.Geoip) > 0 {
-		cond, err := NewMultiGeoIPMatcher(rr.Geoip, false)
+		cond, err := NewMultiGeoIPMatcher(rr.Geoip, "target")
 		if err != nil {
 			return nil, err
 		}
@@ -81,13 +85,22 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 	}
 
 	if len(rr.SourceGeoip) > 0 {
-		cond, err := NewMultiGeoIPMatcher(rr.SourceGeoip, true)
+		cond, err := NewMultiGeoIPMatcher(rr.SourceGeoip, "source")
 		if err != nil {
 			return nil, err
 		}
 		conds.Add(cond)
 	}
 
+	if len(rr.LocalGeoip) > 0 {
+		cond, err := NewMultiGeoIPMatcher(rr.LocalGeoip, "local")
+		if err != nil {
+			return nil, err
+		}
+		conds.Add(cond)
+		errors.LogWarning(context.Background(), "Due to some limitations, in UDP connections, localIP is always equal to listen interface IP, so \"localIP\" rule condition does not work properly on UDP inbound connections that listen on all interfaces")
+	}
+
 	if len(rr.Protocol) > 0 {
 		conds.Add(NewProtocolMatcher(rr.Protocol))
 	}

app/router/config.pb.go

@@ -470,7 +470,7 @@ type RoutingRule struct {
 	//	*RoutingRule_Tag
 	//	*RoutingRule_BalancingTag
 	TargetTag isRoutingRule_TargetTag `protobuf_oneof:"target_tag"`
-	RuleTag   string                  `protobuf:"bytes,18,opt,name=rule_tag,json=ruleTag,proto3" json:"rule_tag,omitempty"`
+	RuleTag   string                  `protobuf:"bytes,20,opt,name=rule_tag,json=ruleTag,proto3" json:"rule_tag,omitempty"`
 	// List of domains for target domain matching.
 	Domain []*Domain `protobuf:"bytes,2,rep,name=domain,proto3" json:"domain,omitempty"`
 	// List of GeoIPs for target IP address matching. If this entry exists, the
@@ -492,6 +492,8 @@ type RoutingRule struct {
 	Protocol       []string          `protobuf:"bytes,9,rep,name=protocol,proto3" json:"protocol,omitempty"`
 	Attributes     map[string]string `protobuf:"bytes,15,rep,name=attributes,proto3" json:"attributes,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
 	DomainMatcher  string            `protobuf:"bytes,17,opt,name=domain_matcher,json=domainMatcher,proto3" json:"domain_matcher,omitempty"`
+	LocalGeoip     []*GeoIP          `protobuf:"bytes,18,rep,name=local_geoip,json=localGeoip,proto3" json:"local_geoip,omitempty"`
+	LocalPortList  *net.PortList     `protobuf:"bytes,19,opt,name=local_port_list,json=localPortList,proto3" json:"local_port_list,omitempty"`
 }
 
 func (x *RoutingRule) Reset() {
@@ -629,6 +631,20 @@ func (x *RoutingRule) GetDomainMatcher() string {
 	return ""
 }
 
+func (x *RoutingRule) GetLocalGeoip() []*GeoIP {
+	if x != nil {
+		return x.LocalGeoip
+	}
+	return nil
+}
+
+func (x *RoutingRule) GetLocalPortList() *net.PortList {
+	if x != nil {
+		return x.LocalPortList
+	}
+	return nil
+}
+
 type isRoutingRule_TargetTag interface {
 	isRoutingRule_TargetTag()
 }
@@ -1069,13 +1085,13 @@ var file_app_router_config_proto_rawDesc = []byte{
 	0x6f, 0x53, 0x69, 0x74, 0x65, 0x4c, 0x69, 0x73, 0x74, 0x12, 0x2e, 0x0a, 0x05, 0x65, 0x6e, 0x74,
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+	0x01, 0x28, 0x02, 0x52, 0x09, 0x74, 0x6f, 0x6c, 0x65, 0x72, 0x61, 0x6e, 0x63, 0x65, 0x22, 0x9b,
+	0x02, 0x0a, 0x06, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x4f, 0x0a, 0x0f, 0x64, 0x6f, 0x6d,
+	0x61, 0x69, 0x6e, 0x5f, 0x73, 0x74, 0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x18, 0x01, 0x20, 0x01,
+	0x28, 0x0e, 0x32, 0x26, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x72, 0x6f,
+	0x75, 0x74, 0x65, 0x72, 0x2e, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x2e, 0x44, 0x6f, 0x6d, 0x61,
+	0x69, 0x6e, 0x53, 0x74, 0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x52, 0x0e, 0x64, 0x6f, 0x6d, 0x61,
+	0x69, 0x6e, 0x53, 0x74, 0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x12, 0x30, 0x0a, 0x04, 0x72, 0x75,
+	0x6c, 0x65, 0x18, 0x02, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x1c, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e,
+	0x61, 0x70, 0x70, 0x2e, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x2e, 0x52, 0x6f, 0x75, 0x74, 0x69,
+	0x6e, 0x67, 0x52, 0x75, 0x6c, 0x65, 0x52, 0x04, 0x72, 0x75, 0x6c, 0x65, 0x12, 0x45, 0x0a, 0x0e,
+	0x62, 0x61, 0x6c, 0x61, 0x6e, 0x63, 0x69, 0x6e, 0x67, 0x5f, 0x72, 0x75, 0x6c, 0x65, 0x18, 0x03,
+	0x20, 0x03, 0x28, 0x0b, 0x32, 0x1e, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e,
+	0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x2e, 0x42, 0x61, 0x6c, 0x61, 0x6e, 0x63, 0x69, 0x6e, 0x67,
+	0x52, 0x75, 0x6c, 0x65, 0x52, 0x0d, 0x62, 0x61, 0x6c, 0x61, 0x6e, 0x63, 0x69, 0x6e, 0x67, 0x52,
+	0x75, 0x6c, 0x65, 0x22, 0x47, 0x0a, 0x0e, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x53, 0x74, 0x72,
+	0x61, 0x74, 0x65, 0x67, 0x79, 0x12, 0x08, 0x0a, 0x04, 0x41, 0x73, 0x49, 0x73, 0x10, 0x00, 0x12,
+	0x09, 0x0a, 0x05, 0x55, 0x73, 0x65, 0x49, 0x70, 0x10, 0x01, 0x12, 0x10, 0x0a, 0x0c, 0x49, 0x70,
+	0x49, 0x66, 0x4e, 0x6f, 0x6e, 0x4d, 0x61, 0x74, 0x63, 0x68, 0x10, 0x02, 0x12, 0x0e, 0x0a, 0x0a,
+	0x49, 0x70, 0x4f, 0x6e, 0x44, 0x65, 0x6d, 0x61, 0x6e, 0x64, 0x10, 0x03, 0x42, 0x4f, 0x0a, 0x13,
+	0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x72, 0x6f, 0x75,
+	0x74, 0x65, 0x72, 0x50, 0x01, 0x5a, 0x24, 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, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0xaa, 0x02, 0x0f, 0x58, 0x72,
+	0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x52, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x62, 0x06, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -1220,16 +1244,18 @@ var file_app_router_config_proto_depIdxs = []int32{
 	4,  // 10: xray.app.router.RoutingRule.source_geoip:type_name -> xray.app.router.GeoIP
 	15, // 11: xray.app.router.RoutingRule.source_port_list:type_name -> xray.common.net.PortList
 	14, // 12: xray.app.router.RoutingRule.attributes:type_name -> xray.app.router.RoutingRule.AttributesEntry
-	17, // 13: xray.app.router.BalancingRule.strategy_settings:type_name -> xray.common.serial.TypedMessage
-	10, // 14: xray.app.router.StrategyLeastLoadConfig.costs:type_name -> xray.app.router.StrategyWeight
-	1,  // 15: xray.app.router.Config.domain_strategy:type_name -> xray.app.router.Config.DomainStrategy
-	8,  // 16: xray.app.router.Config.rule:type_name -> xray.app.router.RoutingRule
-	9,  // 17: xray.app.router.Config.balancing_rule:type_name -> xray.app.router.BalancingRule
-	18, // [18:18] is the sub-list for method output_type
-	18, // [18:18] is the sub-list for method input_type
-	18, // [18:18] is the sub-list for extension type_name
-	18, // [18:18] is the sub-list for extension extendee
-	0,  // [0:18] is the sub-list for field type_name
+	4,  // 13: xray.app.router.RoutingRule.local_geoip:type_name -> xray.app.router.GeoIP
+	15, // 14: xray.app.router.RoutingRule.local_port_list:type_name -> xray.common.net.PortList
+	17, // 15: xray.app.router.BalancingRule.strategy_settings:type_name -> xray.common.serial.TypedMessage
+	10, // 16: xray.app.router.StrategyLeastLoadConfig.costs:type_name -> xray.app.router.StrategyWeight
+	1,  // 17: xray.app.router.Config.domain_strategy:type_name -> xray.app.router.Config.DomainStrategy
+	8,  // 18: xray.app.router.Config.rule:type_name -> xray.app.router.RoutingRule
+	9,  // 19: xray.app.router.Config.balancing_rule:type_name -> xray.app.router.BalancingRule
+	20, // [20:20] is the sub-list for method output_type
+	20, // [20:20] is the sub-list for method input_type
+	20, // [20:20] is the sub-list for extension type_name
+	20, // [20:20] is the sub-list for extension extendee
+	0,  // [0:20] is the sub-list for field type_name
 }
 
 func init() { file_app_router_config_proto_init() }

app/router/config.proto

@@ -79,7 +79,7 @@ message RoutingRule {
     // Tag of routing balancer.
     string balancing_tag = 12;
   }
-    string rule_tag = 18;
+    string rule_tag = 20;
 
   // List of domains for target domain matching.
   repeated Domain domain = 2;
@@ -110,6 +110,9 @@ message RoutingRule {
   map<string, string> attributes = 15;
 
   string domain_matcher = 17;
+
+  repeated GeoIP local_geoip = 18;
+  xray.common.net.PortList local_port_list = 19;
 }
 
 message BalancingRule {

app/stats/online_map.go

@@ -7,7 +7,6 @@ import (
 
 // OnlineMap is an implementation of stats.OnlineMap.
 type OnlineMap struct {
-	value         int
 	ipList        map[string]time.Time
 	access        sync.RWMutex
 	lastCleanup   time.Time
@@ -25,7 +24,10 @@ func NewOnlineMap() *OnlineMap {
 
 // Count implements stats.OnlineMap.
 func (c *OnlineMap) Count() int {
-	return c.value
+	c.access.RLock()
+	defer c.access.RUnlock()
+
+	return len(c.ipList)
 }
 
 // List implements stats.OnlineMap.
@@ -35,23 +37,18 @@ func (c *OnlineMap) List() []string {
 
 // AddIP implements stats.OnlineMap.
 func (c *OnlineMap) AddIP(ip string) {
-	list := c.ipList
-
 	if ip == "127.0.0.1" {
 		return
 	}
+
 	c.access.Lock()
-	if _, ok := list[ip]; !ok {
-		list[ip] = time.Now()
-	}
+	c.ipList[ip] = time.Now()
 	c.access.Unlock()
+
 	if time.Since(c.lastCleanup) > c.cleanupPeriod {
-		list = c.RemoveExpiredIPs(list)
+		c.RemoveExpiredIPs()
 		c.lastCleanup = time.Now()
 	}
-
-	c.value = len(list)
-	c.ipList = list
 }
 
 func (c *OnlineMap) GetKeys() []string {
@@ -65,24 +62,22 @@ func (c *OnlineMap) GetKeys() []string {
 	return keys
 }
 
-func (c *OnlineMap) RemoveExpiredIPs(list map[string]time.Time) map[string]time.Time {
+func (c *OnlineMap) RemoveExpiredIPs() {
 	c.access.Lock()
 	defer c.access.Unlock()
 
 	now := time.Now()
-	for k, t := range list {
+	for k, t := range c.ipList {
 		diff := now.Sub(t)
 		if diff.Seconds() > 20 {
-			delete(list, k)
+			delete(c.ipList, k)
 		}
 	}
-	return list
 }
 
 func (c *OnlineMap) IpTimeMap() map[string]time.Time {
-	list := c.ipList
 	if time.Since(c.lastCleanup) > c.cleanupPeriod {
-		list = c.RemoveExpiredIPs(list)
+		c.RemoveExpiredIPs()
 		c.lastCleanup = time.Now()
 	}
 

app/version/config.pb.go

@@ -0,0 +1,152 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.35.1
+// 	protoc        v5.28.2
+// source: app/version/config.proto
+
+package version
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type Config struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	CoreVersion string `protobuf:"bytes,1,opt,name=core_version,json=coreVersion,proto3" json:"core_version,omitempty"`
+	MinVersion  string `protobuf:"bytes,2,opt,name=min_version,json=minVersion,proto3" json:"min_version,omitempty"`
+	MaxVersion  string `protobuf:"bytes,3,opt,name=max_version,json=maxVersion,proto3" json:"max_version,omitempty"`
+}
+
+func (x *Config) Reset() {
+	*x = Config{}
+	mi := &file_app_version_config_proto_msgTypes[0]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *Config) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Config) ProtoMessage() {}
+
+func (x *Config) ProtoReflect() protoreflect.Message {
+	mi := &file_app_version_config_proto_msgTypes[0]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Config.ProtoReflect.Descriptor instead.
+func (*Config) Descriptor() ([]byte, []int) {
+	return file_app_version_config_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Config) GetCoreVersion() string {
+	if x != nil {
+		return x.CoreVersion
+	}
+	return ""
+}
+
+func (x *Config) GetMinVersion() string {
+	if x != nil {
+		return x.MinVersion
+	}
+	return ""
+}
+
+func (x *Config) GetMaxVersion() string {
+	if x != nil {
+		return x.MaxVersion
+	}
+	return ""
+}
+
+var File_app_version_config_proto protoreflect.FileDescriptor
+
+var file_app_version_config_proto_rawDesc = []byte{
+	0x0a, 0x18, 0x61, 0x70, 0x70, 0x2f, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x2f, 0x63, 0x6f,
+	0x6e, 0x66, 0x69, 0x67, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x10, 0x78, 0x72, 0x61, 0x79,
+	0x2e, 0x61, 0x70, 0x70, 0x2e, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x22, 0x6d, 0x0a, 0x06,
+	0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x21, 0x0a, 0x0c, 0x63, 0x6f, 0x72, 0x65, 0x5f, 0x76,
+	0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0b, 0x63, 0x6f,
+	0x72, 0x65, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x12, 0x1f, 0x0a, 0x0b, 0x6d, 0x69, 0x6e,
+	0x5f, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0a,
+	0x6d, 0x69, 0x6e, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x12, 0x1f, 0x0a, 0x0b, 0x6d, 0x61,
+	0x78, 0x5f, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x52,
+	0x0a, 0x6d, 0x61, 0x78, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x42, 0x52, 0x0a, 0x14, 0x63,
+	0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x76, 0x65, 0x72, 0x73,
+	0x69, 0x6f, 0x6e, 0x50, 0x01, 0x5a, 0x25, 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, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0xaa, 0x02, 0x10, 0x58,
+	0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x62,
+	0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_app_version_config_proto_rawDescOnce sync.Once
+	file_app_version_config_proto_rawDescData = file_app_version_config_proto_rawDesc
+)
+
+func file_app_version_config_proto_rawDescGZIP() []byte {
+	file_app_version_config_proto_rawDescOnce.Do(func() {
+		file_app_version_config_proto_rawDescData = protoimpl.X.CompressGZIP(file_app_version_config_proto_rawDescData)
+	})
+	return file_app_version_config_proto_rawDescData
+}
+
+var file_app_version_config_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
+var file_app_version_config_proto_goTypes = []any{
+	(*Config)(nil), // 0: xray.app.version.Config
+}
+var file_app_version_config_proto_depIdxs = []int32{
+	0, // [0:0] is the sub-list for method output_type
+	0, // [0:0] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_app_version_config_proto_init() }
+func file_app_version_config_proto_init() {
+	if File_app_version_config_proto != nil {
+		return
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_app_version_config_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   1,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_app_version_config_proto_goTypes,
+		DependencyIndexes: file_app_version_config_proto_depIdxs,
+		MessageInfos:      file_app_version_config_proto_msgTypes,
+	}.Build()
+	File_app_version_config_proto = out.File
+	file_app_version_config_proto_rawDesc = nil
+	file_app_version_config_proto_goTypes = nil
+	file_app_version_config_proto_depIdxs = nil
+}

app/version/config.proto

@@ -0,0 +1,14 @@
+syntax = "proto3";
+
+package xray.app.version;
+option csharp_namespace = "Xray.App.Version";
+option go_package = "github.com/xtls/xray-core/app/version";
+option java_package = "com.xray.app.version";
+option java_multiple_files = true;
+
+
+message Config {
+  string core_version = 1;
+  string min_version = 2;
+  string max_version = 3;
+}

app/version/version.go

@@ -0,0 +1,77 @@
+package version
+
+import (
+	"context"
+	"github.com/xtls/xray-core/common"
+	"github.com/xtls/xray-core/common/errors"
+	"strconv"
+	"strings"
+)
+
+type Version struct {
+	config *Config
+	ctx    context.Context
+}
+
+func New(ctx context.Context, config *Config) (*Version, error) {
+	if config.MinVersion != "" {
+		result, err := compareVersions(config.MinVersion, config.CoreVersion)
+		if err != nil {
+			return nil, err
+		}
+		if result > 0 {
+			return nil, errors.New("this config must be run on version ", config.MinVersion, " or higher")
+		}
+	}
+	if config.MaxVersion != "" {
+		result, err := compareVersions(config.MaxVersion, config.CoreVersion)
+		if err != nil {
+			return nil, err
+		}
+		if result < 0 {
+			return nil, errors.New("this config should be run on version ", config.MaxVersion, " or lower")
+		}
+	}
+	return &Version{config: config, ctx: ctx}, nil
+}
+
+func compareVersions(v1, v2 string) (int, error) {
+	// Split version strings into components
+	v1Parts := strings.Split(v1, ".")
+	v2Parts := strings.Split(v2, ".")
+
+	// Pad shorter versions with zeros
+	for len(v1Parts) < len(v2Parts) {
+		v1Parts = append(v1Parts, "0")
+	}
+	for len(v2Parts) < len(v1Parts) {
+		v2Parts = append(v2Parts, "0")
+	}
+
+	// Compare each part
+	for i := 0; i < len(v1Parts); i++ {
+		// Convert parts to integers
+		n1, err := strconv.Atoi(v1Parts[i])
+		if err != nil {
+			return 0, errors.New("invalid version component ", v1Parts[i], " in ", v1)
+		}
+		n2, err := strconv.Atoi(v2Parts[i])
+		if err != nil {
+			return 0, errors.New("invalid version component ", v2Parts[i], " in ", v2)
+		}
+
+		if n1 < n2 {
+			return -1, nil // v1 < v2
+		}
+		if n1 > n2 {
+			return 1, nil // v1 > v2
+		}
+	}
+	return 0, nil // v1 == v2
+}
+
+func init() {
+	common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
+		return New(ctx, config.(*Config))
+	}))
+}

common/protocol/headers.go

@@ -79,20 +79,18 @@ type CommandSwitchAccount struct {
 }
 
 var (
-	hasGCMAsmAMD64 = cpu.X86.HasAES && cpu.X86.HasPCLMULQDQ
+	// Keep in sync with crypto/tls/cipher_suites.go.
+	hasGCMAsmAMD64 = cpu.X86.HasAES && cpu.X86.HasPCLMULQDQ && cpu.X86.HasSSE41 && cpu.X86.HasSSSE3
 	hasGCMAsmARM64 = cpu.ARM64.HasAES && cpu.ARM64.HasPMULL
-	// Keep in sync with crypto/aes/cipher_s390x.go.
-	hasGCMAsmS390X = cpu.S390X.HasAES && cpu.S390X.HasAESCBC && cpu.S390X.HasAESCTR &&
-		(cpu.S390X.HasGHASH || cpu.S390X.HasAESGCM)
+	hasGCMAsmS390X = cpu.S390X.HasAES && cpu.S390X.HasAESCTR && cpu.S390X.HasGHASH
+	hasGCMAsmPPC64 = runtime.GOARCH == "ppc64" || runtime.GOARCH == "ppc64le"
 
-	hasAESGCMHardwareSupport = runtime.GOARCH == "amd64" && hasGCMAsmAMD64 ||
-		runtime.GOARCH == "arm64" && hasGCMAsmARM64 ||
-		runtime.GOARCH == "s390x" && hasGCMAsmS390X
+	HasAESGCMHardwareSupport = hasGCMAsmAMD64 || hasGCMAsmARM64 || hasGCMAsmS390X || hasGCMAsmPPC64
 )
 
 func (sc *SecurityConfig) GetSecurityType() SecurityType {
 	if sc == nil || sc.Type == SecurityType_AUTO {
-		if hasAESGCMHardwareSupport {
+		if HasAESGCMHardwareSupport {
 			return SecurityType_AES128_GCM
 		}
 		return SecurityType_CHACHA20_POLY1305

common/session/session.go

@@ -36,6 +36,8 @@ func ExportIDToError(ctx context.Context) errors.ExportOption {
 type Inbound struct {
 	// Source address of the inbound connection.
 	Source net.Destination
+	// Local address of the inbound connection.
+	Local net.Destination
 	// Gateway address.
 	Gateway net.Destination
 	// Tag of the inbound proxy that handles the connection.

core/core.go

@@ -18,8 +18,8 @@ import (
 
 var (
 	Version_x byte = 25
-	Version_y byte = 7
-	Version_z byte = 23
+	Version_y byte = 8
+	Version_z byte = 3
 )
 
 var (

features/routing/context.go

@@ -23,6 +23,12 @@ type Context interface {
 	// GetTargetPort returns the target port of the connection.
 	GetTargetPort() net.Port
 
+	// GetLocalIPs returns the local IPs bound to the connection.
+	GetLocalIPs() []net.IP
+
+	// GetLocalPort returns the local port of the connection.
+	GetLocalPort() net.Port
+
 	// GetTargetDomain returns the target domain of the connection, if exists.
 	GetTargetDomain() string
 

features/routing/session/context.go

@@ -28,12 +28,13 @@ func (ctx *Context) GetSourceIPs() []net.IP {
 	if ctx.Inbound == nil || !ctx.Inbound.Source.IsValid() {
 		return nil
 	}
-	dest := ctx.Inbound.Source
-	if dest.Address.Family().IsDomain() {
-		return nil
+
+	if ctx.Inbound.Source.Address.Family().IsIP() {
+		return []net.IP{ctx.Inbound.Source.Address.IP()}
 	}
 
-	return []net.IP{dest.Address.IP()}
+	return nil
+
 }
 
 // GetSourcePort implements routing.Context.
@@ -65,6 +66,27 @@ func (ctx *Context) GetTargetPort() net.Port {
 	return ctx.Outbound.Target.Port
 }
 
+// GetLocalIPs implements routing.Context.
+func (ctx *Context) GetLocalIPs() []net.IP {
+	if ctx.Inbound == nil || !ctx.Inbound.Local.IsValid() {
+		return nil
+	}
+
+	if ctx.Inbound.Local.Address.Family().IsIP() {
+		return []net.IP{ctx.Inbound.Local.Address.IP()}
+	}
+
+	return nil
+}
+
+// GetLocalPort implements routing.Context.
+func (ctx *Context) GetLocalPort() net.Port {
+	if ctx.Inbound == nil || !ctx.Inbound.Local.IsValid() {
+		return 0
+	}
+	return ctx.Inbound.Local.Port
+}
+
 // GetTargetDomain implements routing.Context.
 func (ctx *Context) GetTargetDomain() string {
 	if ctx.Outbound == nil || !ctx.Outbound.Target.IsValid() {

go.mod

@@ -3,13 +3,12 @@ module github.com/xtls/xray-core
 go 1.24
 
 require (
-	github.com/OmarTariq612/goech v0.0.0-20240405204721-8e2e1dafd3a0
 	github.com/cloudflare/circl v1.6.1
 	github.com/ghodss/yaml v1.0.1-0.20220118164431-d8423dcdf344
 	github.com/golang/mock v1.7.0-rc.1
 	github.com/google/go-cmp v0.7.0
 	github.com/gorilla/websocket v1.5.3
-	github.com/miekg/dns v1.1.67
+	github.com/miekg/dns v1.1.68
 	github.com/pelletier/go-toml v1.9.5
 	github.com/pires/go-proxyproto v0.8.1
 	github.com/quic-go/quic-go v0.54.0
@@ -20,15 +19,15 @@ require (
 	github.com/stretchr/testify v1.10.0
 	github.com/v2fly/ss-bloomring v0.0.0-20210312155135-28617310f63e
 	github.com/vishvananda/netlink v1.3.1
-	github.com/xtls/reality v0.0.0-20250723121014-c6320729d93b
+	github.com/xtls/reality v0.0.0-20250725142056-5b52a03d4fb7
 	go4.org/netipx v0.0.0-20231129151722-fdeea329fbba
-	golang.org/x/crypto v0.40.0
-	golang.org/x/net v0.42.0
+	golang.org/x/crypto v0.41.0
+	golang.org/x/net v0.43.0
 	golang.org/x/sync v0.16.0
-	golang.org/x/sys v0.34.0
+	golang.org/x/sys v0.35.0
 	golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173
 	google.golang.org/grpc v1.74.2
-	google.golang.org/protobuf v1.36.6
+	google.golang.org/protobuf v1.36.7
 	gvisor.dev/gvisor v0.0.0-20250428193742-2d800c3129d5
 	h12.io/socks v1.0.3
 	lukechampine.com/blake3 v1.4.1
@@ -48,10 +47,10 @@ require (
 	github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3 // indirect
 	github.com/vishvananda/netns v0.0.5 // indirect
 	go.uber.org/mock v0.5.0 // indirect
-	golang.org/x/mod v0.25.0 // indirect
-	golang.org/x/text v0.27.0 // indirect
+	golang.org/x/mod v0.26.0 // indirect
+	golang.org/x/text v0.28.0 // indirect
 	golang.org/x/time v0.7.0 // indirect
-	golang.org/x/tools v0.34.0 // indirect
+	golang.org/x/tools v0.35.0 // indirect
 	golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20250528174236-200df99c418a // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect

go.sum

@@ -1,5 +1,3 @@
-github.com/OmarTariq612/goech v0.0.0-20240405204721-8e2e1dafd3a0 h1:Wo41lDOevRJSGpevP+8Pk5bANX7fJacO2w04aqLiC5I=
-github.com/OmarTariq612/goech v0.0.0-20240405204721-8e2e1dafd3a0/go.mod h1:FVGavL/QEBQDcBpr3fAojoK17xX5k9bicBphrOpP7uM=
 github.com/andybalholm/brotli v1.0.6 h1:Yf9fFpf49Zrxb9NlQaluyE92/+X7UVHlhMNJN2sxfOI=
 github.com/andybalholm/brotli v1.0.6/go.mod h1:fO7iG3H7G2nSZ7m0zPUDn85XEX2GTukHGRSepvi9Eig=
 github.com/cloudflare/circl v1.6.1 h1:zqIqSPIndyBh1bjLVVDHMPpVKqp8Su/V+6MeDzzQBQ0=
@@ -40,8 +38,8 @@ github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
-github.com/miekg/dns v1.1.67 h1:kg0EHj0G4bfT5/oOys6HhZw4vmMlnoZ+gDu8tJ/AlI0=
-github.com/miekg/dns v1.1.67/go.mod h1:fujopn7TB3Pu3JM69XaawiU0wqjpL9/8xGop5UrTPps=
+github.com/miekg/dns v1.1.68 h1:jsSRkNozw7G/mnmXULynzMNIsgY2dHC8LO6U6Ij2JEA=
+github.com/miekg/dns v1.1.68/go.mod h1:fujopn7TB3Pu3JM69XaawiU0wqjpL9/8xGop5UrTPps=
 github.com/pelletier/go-toml v1.9.5 h1:4yBQzkHv+7BHq2PQUZF3Mx0IYxG7LsP222s7Agd3ve8=
 github.com/pelletier/go-toml v1.9.5/go.mod h1:u1nR/EPcESfeI/szUZKdtJ0xRNbUoANCkoOuaOx1Y+c=
 github.com/phayes/freeport v0.0.0-20180830031419-95f893ade6f2 h1:JhzVVoYvbOACxoUmOs6V/G4D5nPVUW73rKvXxP4XUJc=
@@ -77,8 +75,8 @@ github.com/vishvananda/netlink v1.3.1 h1:3AEMt62VKqz90r0tmNhog0r/PpWKmrEShJU0wJW
 github.com/vishvananda/netlink v1.3.1/go.mod h1:ARtKouGSTGchR8aMwmkzC0qiNPrrWO5JS/XMVl45+b4=
 github.com/vishvananda/netns v0.0.5 h1:DfiHV+j8bA32MFM7bfEunvT8IAqQ/NzSJHtcmW5zdEY=
 github.com/vishvananda/netns v0.0.5/go.mod h1:SpkAiCQRtJ6TvvxPnOSyH3BMl6unz3xZlaprSwhNNJM=
-github.com/xtls/reality v0.0.0-20250723121014-c6320729d93b h1:HOOsQYu7/EzvpegY7uHiaeI9H/6OsHAOkREnJthdUW8=
-github.com/xtls/reality v0.0.0-20250723121014-c6320729d93b/go.mod h1:XxvnCCgBee4WWE0bc4E+a7wbk8gkJ/rS0vNVNtC5qp0=
+github.com/xtls/reality v0.0.0-20250725142056-5b52a03d4fb7 h1:Ript0vN+nSO33+Vj4n0mgNY5M+oOxFQJdrJ1VnwTBO0=
+github.com/xtls/reality v0.0.0-20250725142056-5b52a03d4fb7/go.mod h1:XxvnCCgBee4WWE0bc4E+a7wbk8gkJ/rS0vNVNtC5qp0=
 github.com/yuin/goldmark v1.4.1/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=
 go.opentelemetry.io/auto/sdk v1.1.0/go.mod h1:3wSPjt5PWp2RhlCcmmOial7AvC4DQqZb7a7wCow3W8A=
@@ -98,16 +96,16 @@ go4.org/netipx v0.0.0-20231129151722-fdeea329fbba h1:0b9z3AuHCjxk0x/opv64kcgZLBs
 go4.org/netipx v0.0.0-20231129151722-fdeea329fbba/go.mod h1:PLyyIXexvUFg3Owu6p/WfdlivPbZJsZdgWZlrGope/Y=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.40.0 h1:r4x+VvoG5Fm+eJcxMaY8CQM7Lb0l1lsmjGBQ6s8BfKM=
-golang.org/x/crypto v0.40.0/go.mod h1:Qr1vMER5WyS2dfPHAlsOj01wgLbsyWtFn/aY+5+ZdxY=
+golang.org/x/crypto v0.41.0 h1:WKYxWedPGCTVVl5+WHSSrOBT0O8lx32+zxmHxijgXp4=
+golang.org/x/crypto v0.41.0/go.mod h1:pO5AFd7FA68rFak7rOAGVuygIISepHftHnr8dr6+sUc=
 golang.org/x/mod v0.5.1/go.mod h1:5OXOZSfqPIIbmVBIIKWRFfZjPR0E5r58TLhUjH0a2Ro=
-golang.org/x/mod v0.25.0 h1:n7a+ZbQKQA/Ysbyb0/6IbB1H/X41mKgbhfv7AfG/44w=
-golang.org/x/mod v0.25.0/go.mod h1:IXM97Txy2VM4PJ3gI61r1YEk/gAj6zAHN3AdZt6S9Ww=
+golang.org/x/mod v0.26.0 h1:EGMPT//Ezu+ylkCijjPc+f4Aih7sZvaAr+O3EHBxvZg=
+golang.org/x/mod v0.26.0/go.mod h1:/j6NAhSk8iQ723BGAUyoAcn7SlD7s15Dp9Nd/SfeaFQ=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20211015210444-4f30a5c0130f/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
-golang.org/x/net v0.42.0 h1:jzkYrhi3YQWD6MLBJcsklgQsoAcw89EcZbJw8Z614hs=
-golang.org/x/net v0.42.0/go.mod h1:FF1RA5d3u7nAYA4z2TkclSCKh68eSXtiFwcWQpPXdt8=
+golang.org/x/net v0.43.0 h1:lat02VYK2j4aLzMzecihNvTlJNQUq316m2Mr9rnM6YE=
+golang.org/x/net v0.43.0/go.mod h1:vhO1fvI4dGsIjh73sWfUVjj3N7CA9WkKJNQm2svM6Jg=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.16.0 h1:ycBJEhp9p4vXvUZNszeOq0kGTPghopOL8q0fq3vstxw=
@@ -119,21 +117,21 @@ golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20211019181941-9d821ace8654/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.10.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.34.0 h1:H5Y5sJ2L2JRdyv7ROF1he/lPdvFsd0mJHFw2ThKHxLA=
-golang.org/x/sys v0.34.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/sys v0.35.0 h1:vz1N37gP5bs89s7He8XuIYXpyY0+QlsKmzipCbUtyxI=
+golang.org/x/sys v0.35.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.27.0 h1:4fGWRpyh641NLlecmyl4LOe6yDdfaYNrGb2zdfo4JV4=
-golang.org/x/text v0.27.0/go.mod h1:1D28KMCvyooCX9hBiosv5Tz/+YLxj0j7XhWjpSUF7CU=
+golang.org/x/text v0.28.0 h1:rhazDwis8INMIwQ4tpjLDzUhx6RlXqZNPEM0huQojng=
+golang.org/x/text v0.28.0/go.mod h1:U8nCwOR8jO/marOQ0QbDiOngZVEBB7MAiitBuMjXiNU=
 golang.org/x/time v0.7.0 h1:ntUhktv3OPE6TgYxXWv9vKvUSJyIFJlyohwbkEwPrKQ=
 golang.org/x/time v0.7.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.8/go.mod h1:nABZi5QlRsZVlzPpHl034qft6wpY4eDcsTt5AaioBiU=
-golang.org/x/tools v0.34.0 h1:qIpSLOxeCYGg9TrcJokLBG4KFA6d795g0xkBkiESGlo=
-golang.org/x/tools v0.34.0/go.mod h1:pAP9OwEaY1CAW3HOmg3hLZC5Z0CCmzjAF2UQMSqNARg=
+golang.org/x/tools v0.35.0 h1:mBffYraMEf7aa0sB+NuKnuCy8qI/9Bughn8dC2Gu5r0=
+golang.org/x/tools v0.35.0/go.mod h1:NKdj5HkL/73byiZSJjqJgKn3ep7KjFkBOkR/Hps3VPw=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -145,8 +143,8 @@ google.golang.org/genproto/googleapis/rpc v0.0.0-20250528174236-200df99c418a h1:
 google.golang.org/genproto/googleapis/rpc v0.0.0-20250528174236-200df99c418a/go.mod h1:qQ0YXyHHx3XkvlzUtpXDkS29lDSafHMZBAZDc03LQ3A=
 google.golang.org/grpc v1.74.2 h1:WoosgB65DlWVC9FqI82dGsZhWFNBSLjQ84bjROOpMu4=
 google.golang.org/grpc v1.74.2/go.mod h1:CtQ+BGjaAIXHs/5YS3i473GqwBBa1zGQNevxdeBEXrM=
-google.golang.org/protobuf v1.36.6 h1:z1NpPI8ku2WgiWnf+t9wTPsn6eP1L7ksHUlkfLvd9xY=
-google.golang.org/protobuf v1.36.6/go.mod h1:jduwjTPXsFjZGTmRluh+L6NjiWu7pchiJ2/5YcXBHnY=
+google.golang.org/protobuf v1.36.7 h1:IgrO7UwFQGJdRNXH/sQux4R1Dj1WAKcLElzeeRaXV2A=
+google.golang.org/protobuf v1.36.7/go.mod h1:jduwjTPXsFjZGTmRluh+L6NjiWu7pchiJ2/5YcXBHnY=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=

infra/conf/dokodemo.go

@@ -1,26 +1,35 @@
 package conf
 
 import (
+	"github.com/xtls/xray-core/common/errors"
+	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/proxy/dokodemo"
 	"google.golang.org/protobuf/proto"
 )
 
 type DokodemoConfig struct {
-	Host        *Address     `json:"address"`
-	PortValue   uint16       `json:"port"`
-	NetworkList *NetworkList `json:"network"`
-	Redirect    bool         `json:"followRedirect"`
-	UserLevel   uint32       `json:"userLevel"`
+	Address        *Address          `json:"address"`
+	Port           uint16            `json:"port"`
+	PortMap        map[string]string `json:"portMap"`
+	Network        *NetworkList      `json:"network"`
+	FollowRedirect bool              `json:"followRedirect"`
+	UserLevel      uint32            `json:"userLevel"`
 }
 
 func (v *DokodemoConfig) Build() (proto.Message, error) {
 	config := new(dokodemo.Config)
-	if v.Host != nil {
-		config.Address = v.Host.Build()
+	if v.Address != nil {
+		config.Address = v.Address.Build()
 	}
-	config.Port = uint32(v.PortValue)
-	config.Networks = v.NetworkList.Build()
-	config.FollowRedirect = v.Redirect
+	config.Port = uint32(v.Port)
+	config.PortMap = v.PortMap
+	for _, v := range config.PortMap {
+		if _, _, err := net.SplitHostPort(v); err != nil {
+			return nil, errors.New("invalid portMap: ", v).Base(err)
+		}
+	}
+	config.Networks = v.Network.Build()
+	config.FollowRedirect = v.FollowRedirect
 	config.UserLevel = v.UserLevel
 	return config, nil
 }

infra/conf/freedom.go

@@ -27,12 +27,14 @@ type Fragment struct {
 	Packets  string      `json:"packets"`
 	Length   *Int32Range `json:"length"`
 	Interval *Int32Range `json:"interval"`
+	MaxSplit *Int32Range `json:"maxSplit"`
 }
 
 type Noise struct {
-	Type   string      `json:"type"`
-	Packet string      `json:"packet"`
-	Delay  *Int32Range `json:"delay"`
+	Type    string      `json:"type"`
+	Packet  string      `json:"packet"`
+	Delay   *Int32Range `json:"delay"`
+	ApplyTo string      `json:"applyTo"`
 }
 
 // Build implements Buildable
@@ -108,6 +110,13 @@ func (c *FreedomConfig) Build() (proto.Message, error) {
 			config.Fragment.IntervalMin = uint64(c.Fragment.Interval.From)
 			config.Fragment.IntervalMax = uint64(c.Fragment.Interval.To)
 		}
+
+		{
+			if c.Fragment.MaxSplit != nil {
+				config.Fragment.MaxSplitMin = uint64(c.Fragment.MaxSplit.From)
+				config.Fragment.MaxSplitMax = uint64(c.Fragment.MaxSplit.To)
+			}
+		}
 	}
 
 	if c.Noise != nil {
@@ -193,5 +202,15 @@ func ParseNoise(noise *Noise) (*freedom.Noise, error) {
 		NConfig.DelayMin = uint64(noise.Delay.From)
 		NConfig.DelayMax = uint64(noise.Delay.To)
 	}
+	switch strings.ToLower(noise.ApplyTo) {
+	case "", "ip", "all":
+		NConfig.ApplyTo = "ip"
+	case "ipv4":
+		NConfig.ApplyTo = "ipv4"
+	case "ipv6":
+		NConfig.ApplyTo = "ipv6"
+	default:
+		return nil, errors.New("Invalid applyTo, only ip/ipv4/ipv6 are supported")
+	}
 	return NConfig, nil
 }

infra/conf/router.go

@@ -536,12 +536,15 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 		IP         *StringList       `json:"ip"`
 		Port       *PortList         `json:"port"`
 		Network    *NetworkList      `json:"network"`
-		SourceIP   *StringList       `json:"source"`
+		SourceIP   *StringList       `json:"sourceIP"`
+		Source     *StringList       `json:"source"`
 		SourcePort *PortList         `json:"sourcePort"`
 		User       *StringList       `json:"user"`
 		InboundTag *StringList       `json:"inboundTag"`
 		Protocols  *StringList       `json:"protocol"`
 		Attributes map[string]string `json:"attrs"`
+		LocalIP    *StringList       `json:"localIP"`
+		LocalPort  *PortList         `json:"localPort"`
 	}
 	rawFieldRule := new(RawFieldRule)
 	err := json.Unmarshal(msg, rawFieldRule)
@@ -604,6 +607,10 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 		rule.Networks = rawFieldRule.Network.Build()
 	}
 
+	if rawFieldRule.SourceIP == nil {
+		rawFieldRule.SourceIP = rawFieldRule.Source
+	}
+
 	if rawFieldRule.SourceIP != nil {
 		geoipList, err := ToCidrList(*rawFieldRule.SourceIP)
 		if err != nil {
@@ -616,6 +623,18 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 		rule.SourcePortList = rawFieldRule.SourcePort.Build()
 	}
 
+	if rawFieldRule.LocalIP != nil {
+		geoipList, err := ToCidrList(*rawFieldRule.LocalIP)
+		if err != nil {
+			return nil, err
+		}
+		rule.LocalGeoip = geoipList
+	}
+
+	if rawFieldRule.LocalPort != nil {
+		rule.LocalPortList = rawFieldRule.LocalPort.Build()
+	}
+
 	if rawFieldRule.User != nil {
 		for _, s := range *rawFieldRule.User {
 			rule.UserEmail = append(rule.UserEmail, s)

infra/conf/transport_internet.go

@@ -11,7 +11,6 @@ import (
 	"strings"
 	"syscall"
 
-	"github.com/cloudflare/circl/sign/mldsa/mldsa65"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/platform/filesystem"
@@ -413,6 +412,10 @@ type TLSConfig struct {
 	MasterKeyLog                         string           `json:"masterKeyLog"`
 	ServerNameToVerify                   string           `json:"serverNameToVerify"`
 	VerifyPeerCertInNames                []string         `json:"verifyPeerCertInNames"`
+	ECHServerKeys                        string           `json:"echServerKeys"`
+	ECHConfigList                        string           `json:"echConfigList"`
+	ECHForceQuery                        string           `json:"echForceQuery"`
+	ECHSocketSettings                    *SocketConfig    `json:"echSockopt"`
 }
 
 // Build implements Buildable.
@@ -436,7 +439,7 @@ func (c *TLSConfig) Build() (proto.Message, error) {
 	}
 	if len(config.NextProtocol) > 1 {
 		for _, p := range config.NextProtocol {
-			if tcp.IsFromMitm(p) {
+			if tls.IsFromMitm(p) {
 				return nil, errors.New(`only one element is allowed in "alpn" when using "fromMitm" in it`)
 			}
 		}
@@ -484,6 +487,29 @@ func (c *TLSConfig) Build() (proto.Message, error) {
 	}
 	config.VerifyPeerCertInNames = c.VerifyPeerCertInNames
 
+	if c.ECHServerKeys != "" {
+		EchPrivateKey, err := base64.StdEncoding.DecodeString(c.ECHServerKeys)
+		if err != nil {
+			return nil, errors.New("invalid ECH Config", c.ECHServerKeys)
+		}
+		config.EchServerKeys = EchPrivateKey
+	}
+	switch c.ECHForceQuery {
+	case "none", "half", "full", "":
+		config.EchForceQuery = c.ECHForceQuery
+	default:
+		return nil, errors.New(`invalid "echForceQuery": `, c.ECHForceQuery)
+	}
+	config.EchForceQuery = c.ECHForceQuery
+	config.EchConfigList = c.ECHConfigList
+	if c.ECHSocketSettings != nil {
+		ss, err := c.ECHSocketSettings.Build()
+		if err != nil {
+			return nil, errors.New("Failed to build ech sockopt.").Base(err)
+		}
+		config.EchSocketSettings = ss
+	}
+
 	return config, nil
 }
 
@@ -613,11 +639,13 @@ func (c *REALITYConfig) Build() (proto.Message, error) {
 		config.ServerNames = c.ServerNames
 		config.MaxTimeDiff = c.MaxTimeDiff
 
-		if mldsa65Seed, err := base64.RawURLEncoding.DecodeString(c.Mldsa65Seed); err != nil || len(mldsa65Seed) != 32 {
-			return nil, errors.New(`invalid "mldsa65Seed": `, c.Mldsa65Seed)
-		} else {
-			_, key := mldsa65.NewKeyFromSeed((*[32]byte)(mldsa65Seed))
-			config.Mldsa65Key = key.Bytes()
+		if c.Mldsa65Seed != "" {
+			if c.Mldsa65Seed == c.PrivateKey {
+				return nil, errors.New(`"mldsa65Seed" and "privateKey" can not be the same value: `, c.Mldsa65Seed)
+			}
+			if config.Mldsa65Seed, err = base64.RawURLEncoding.DecodeString(c.Mldsa65Seed); err != nil || len(config.Mldsa65Seed) != 32 {
+				return nil, errors.New(`invalid "mldsa65Seed": `, c.Mldsa65Seed)
+			}
 		}
 
 		config.LimitFallbackUpload = new(reality.LimitFallback)
@@ -655,8 +683,10 @@ func (c *REALITYConfig) Build() (proto.Message, error) {
 		if _, err = hex.Decode(config.ShortId, []byte(c.ShortId)); err != nil {
 			return nil, errors.New(`invalid "shortId": `, c.ShortId)
 		}
-		if config.Mldsa65Verify, err = base64.RawURLEncoding.DecodeString(c.Mldsa65Verify); err != nil || len(config.Mldsa65Verify) != 1952 {
-			return nil, errors.New(`invalid "mldsa65Verify": `, c.Mldsa65Verify)
+		if c.Mldsa65Verify != "" {
+			if config.Mldsa65Verify, err = base64.RawURLEncoding.DecodeString(c.Mldsa65Verify); err != nil || len(config.Mldsa65Verify) != 1952 {
+				return nil, errors.New(`invalid "mldsa65Verify": `, c.Mldsa65Verify)
+			}
 		}
 		if c.SpiderX == "" {
 			c.SpiderX = "/"

infra/conf/version.go

@@ -0,0 +1,22 @@
+package conf
+
+import (
+	"github.com/xtls/xray-core/app/version"
+	"github.com/xtls/xray-core/core"
+	"strconv"
+)
+
+type VersionConfig struct {
+	MinVersion string `json:"min"`
+	MaxVersion string `json:"max"`
+}
+
+func (c *VersionConfig) Build() (*version.Config, error) {
+	coreVersion := strconv.Itoa(int(core.Version_x)) + "." + strconv.Itoa(int(core.Version_y)) + "." + strconv.Itoa(int(core.Version_z))
+
+	return &version.Config{
+		CoreVersion: coreVersion,
+		MinVersion:  c.MinVersion,
+		MaxVersion:  c.MaxVersion,
+	}, nil
+}

infra/conf/vless.go

@@ -1,6 +1,7 @@
 package conf
 
 import (
+	"encoding/base64"
 	"encoding/json"
 	"path/filepath"
 	"runtime"
@@ -68,10 +69,46 @@ func (c *VLessInboundConfig) Build() (proto.Message, error) {
 		config.Clients[idx] = user
 	}
 
-	if c.Decryption != "none" {
-		return nil, errors.New(`VLESS settings: please add/set "decryption":"none" to every settings`)
-	}
 	config.Decryption = c.Decryption
+	if !func() bool {
+		s := strings.Split(config.Decryption, ".")
+		if len(s) != 5 || s[2] != "mlkem768Seed" {
+			return false
+		}
+		if s[0] != "1rtt" {
+			t := strings.TrimSuffix(s[0], "min")
+			if t == s[0] {
+				return false
+			}
+			i, err := strconv.Atoi(t)
+			if err != nil {
+				return false
+			}
+			config.Minutes = uint32(i)
+		}
+		switch s[1] {
+		case "native":
+		case "divide":
+			config.XorMode = 1
+		case "random":
+			config.XorMode = 2
+		default:
+			return false
+		}
+		if b, _ := base64.RawURLEncoding.DecodeString(s[3]); len(b) != 32 {
+			return false
+		}
+		if b, _ := base64.RawURLEncoding.DecodeString(s[4]); len(b) != 64 {
+			return false
+		}
+		config.Decryption = s[4] + "." + s[3]
+		return true
+	}() && config.Decryption != "none" {
+		if config.Decryption == "" {
+			return nil, errors.New(`VLESS settings: please add/set "decryption":"none" to every settings`)
+		}
+		return nil, errors.New(`VLESS settings: unsupported "decryption": ` + config.Decryption)
+	}
 
 	for _, fb := range c.Fallbacks {
 		var i uint16
@@ -143,16 +180,16 @@ type VLessOutboundConfig struct {
 func (c *VLessOutboundConfig) Build() (proto.Message, error) {
 	config := new(outbound.Config)
 
-	if len(c.Vnext) == 0 {
-		return nil, errors.New(`VLESS settings: "vnext" is empty`)
+	if len(c.Vnext) != 1 {
+		return nil, errors.New(`VLESS settings: "vnext" should have one and only one member`)
 	}
 	config.Vnext = make([]*protocol.ServerEndpoint, len(c.Vnext))
 	for idx, rec := range c.Vnext {
 		if rec.Address == nil {
 			return nil, errors.New(`VLESS vnext: "address" is not set`)
 		}
-		if len(rec.Users) == 0 {
-			return nil, errors.New(`VLESS vnext: "users" is empty`)
+		if len(rec.Users) != 1 {
+			return nil, errors.New(`VLESS vnext: "users" should have one and only one member`)
 		}
 		spec := &protocol.ServerEndpoint{
 			Address: rec.Address.Build(),
@@ -181,8 +218,44 @@ func (c *VLessOutboundConfig) Build() (proto.Message, error) {
 				return nil, errors.New(`VLESS users: "flow" doesn't support "` + account.Flow + `" in this version`)
 			}
 
-			if account.Encryption != "none" {
-				return nil, errors.New(`VLESS users: please add/set "encryption":"none" for every user`)
+			if !func() bool {
+				s := strings.Split(account.Encryption, ".")
+				if len(s) != 5 || s[2] != "mlkem768Client" {
+					return false
+				}
+				if s[0] != "1rtt" {
+					t := strings.TrimSuffix(s[0], "min")
+					if t == s[0] {
+						return false
+					}
+					i, err := strconv.Atoi(t)
+					if err != nil {
+						return false
+					}
+					account.Minutes = uint32(i)
+				}
+				switch s[1] {
+				case "native":
+				case "divide":
+					account.XorMode = 1
+				case "random":
+					account.XorMode = 2
+				default:
+					return false
+				}
+				if b, _ := base64.RawURLEncoding.DecodeString(s[3]); len(b) != 32 {
+					return false
+				}
+				if b, _ := base64.RawURLEncoding.DecodeString(s[4]); len(b) != 1184 {
+					return false
+				}
+				account.Encryption = s[4] + "." + s[3]
+				return true
+			}() && account.Encryption != "none" {
+				if account.Encryption == "" {
+					return nil, errors.New(`VLESS users: please add/set "encryption":"none" for every user`)
+				}
+				return nil, errors.New(`VLESS users: unsupported "encryption": ` + account.Encryption)
 			}
 
 			user.Account = serial.ToTypedMessage(account)

infra/conf/xray.go

@@ -21,6 +21,7 @@ import (
 
 var (
 	inboundConfigLoader = NewJSONConfigLoader(ConfigCreatorCache{
+		"tunnel":        func() interface{} { return new(DokodemoConfig) },
 		"dokodemo-door": func() interface{} { return new(DokodemoConfig) },
 		"http":          func() interface{} { return new(HTTPServerConfig) },
 		"shadowsocks":   func() interface{} { return new(ShadowsocksServerConfig) },
@@ -33,8 +34,10 @@ var (
 	}, "protocol", "settings")
 
 	outboundConfigLoader = NewJSONConfigLoader(ConfigCreatorCache{
+		"block":       func() interface{} { return new(BlackholeConfig) },
 		"blackhole":   func() interface{} { return new(BlackholeConfig) },
 		"loopback":    func() interface{} { return new(LoopbackConfig) },
+		"direct":      func() interface{} { return new(FreedomConfig) },
 		"freedom":     func() interface{} { return new(FreedomConfig) },
 		"http":        func() interface{} { return new(HTTPClientConfig) },
 		"shadowsocks": func() interface{} { return new(ShadowsocksClientConfig) },
@@ -242,7 +245,7 @@ func (c *InboundDetourConfig) Build() (*core.InboundHandlerConfig, error) {
 		return nil, errors.New("failed to load inbound detour config for protocol ", c.Protocol).Base(err)
 	}
 	if dokodemoConfig, ok := rawConfig.(*DokodemoConfig); ok {
-		receiverSettings.ReceiveOriginalDestination = dokodemoConfig.Redirect
+		receiverSettings.ReceiveOriginalDestination = dokodemoConfig.FollowRedirect
 	}
 	ts, err := rawConfig.(Buildable).Build()
 	if err != nil {
@@ -380,6 +383,7 @@ type Config struct {
 	FakeDNS          *FakeDNSConfig          `json:"fakeDns"`
 	Observatory      *ObservatoryConfig      `json:"observatory"`
 	BurstObservatory *BurstObservatoryConfig `json:"burstObservatory"`
+	Version          *VersionConfig          `json:"version"`
 }
 
 func (c *Config) findInboundTag(tag string) int {
@@ -448,6 +452,10 @@ func (c *Config) Override(o *Config, fn string) {
 		c.BurstObservatory = o.BurstObservatory
 	}
 
+	if o.Version != nil {
+		c.Version = o.Version
+	}
+
 	// update the Inbound in slice if the only one in override config has same tag
 	if len(o.InboundConfigs) > 0 {
 		for i := range o.InboundConfigs {
@@ -588,6 +596,14 @@ func (c *Config) Build() (*core.Config, error) {
 		config.App = append(config.App, serial.ToTypedMessage(r))
 	}
 
+	if c.Version != nil {
+		r, err := c.Version.Build()
+		if err != nil {
+			return nil, errors.New("failed to build version configuration").Base(err)
+		}
+		config.App = append(config.App, serial.ToTypedMessage(r))
+	}
+
 	var inbounds []InboundDetourConfig
 
 	if len(c.InboundConfigs) > 0 {

main/commands/all/api/api.go

@@ -23,6 +23,8 @@ var CmdAPI = &base.Command{
 		cmdRemoveOutbounds,
 		cmdListInbounds,
 		cmdListOutbounds,
+		cmdAddInboundUsers,
+		cmdRemoveInboundUsers,
 		cmdInboundUser,
 		cmdInboundUserCount,
 		cmdAddRules,

main/commands/all/api/inbound_user_add.go

@@ -0,0 +1,144 @@
+package api
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/xtls/xray-core/common/protocol"
+
+	handlerService "github.com/xtls/xray-core/app/proxyman/command"
+	cserial "github.com/xtls/xray-core/common/serial"
+
+	"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/proxy/shadowsocks"
+	"github.com/xtls/xray-core/proxy/shadowsocks_2022"
+	"github.com/xtls/xray-core/proxy/trojan"
+	vlessin "github.com/xtls/xray-core/proxy/vless/inbound"
+	vmessin "github.com/xtls/xray-core/proxy/vmess/inbound"
+
+	"github.com/xtls/xray-core/main/commands/base"
+)
+
+var cmdAddInboundUsers = &base.Command{
+	CustomFlags: true,
+	UsageLine:   "{{.Exec}} api adu [--server=127.0.0.1:8080] <c1.json> [c2.json]...",
+	Short:       "Add users to inbounds",
+	Long: `
+Add users to inbounds.
+Arguments:
+	-s, -server
+		The API server address. Default 127.0.0.1:8080
+	-t, -timeout
+		Timeout seconds to call API. Default 3
+Example:
+    {{.Exec}} {{.LongName}} --server=127.0.0.1:8080  c1.json c2.json
+`,
+	Run: executeAddInboundUsers,
+}
+
+func executeAddInboundUsers(cmd *base.Command, args []string) {
+	setSharedFlags(cmd)
+	cmd.Flag.Parse(args)
+	unnamedArgs := cmd.Flag.Args()
+	inbs := extractInboundsConfig(unnamedArgs)
+
+	conn, ctx, close := dialAPIServer()
+	defer close()
+	client := handlerService.NewHandlerServiceClient(conn)
+
+	success := 0
+	for _, inb := range inbs {
+		success += executeInboundUserAction(ctx, client, inb, addInboundUserAction)
+	}
+	fmt.Println("Added", success, "user(s) in total.")
+}
+
+func addInboundUserAction(ctx context.Context, client handlerService.HandlerServiceClient, tag string, user *protocol.User) error {
+	fmt.Println("add user:", user.Email)
+	_, err := client.AlterInbound(ctx, &handlerService.AlterInboundRequest{
+		Tag: tag,
+		Operation: cserial.ToTypedMessage(
+			&handlerService.AddUserOperation{
+				User: user,
+			}),
+	})
+	return err
+}
+
+func extractInboundUsers(inb *core.InboundHandlerConfig) []*protocol.User {
+	if inb == nil {
+		return nil
+	}
+	inst, err := inb.ProxySettings.GetInstance()
+	if err != nil || inst == nil {
+		fmt.Println("failed to get inbound instance:", err)
+		return nil
+	}
+	switch ty := inst.(type) {
+	case *vmessin.Config:
+		return ty.User
+	case *vlessin.Config:
+		return ty.Clients
+	case *trojan.ServerConfig:
+		return ty.Users
+	case *shadowsocks.ServerConfig:
+		return ty.Users
+	case *shadowsocks_2022.MultiUserServerConfig:
+		return ty.Users
+	default:
+		fmt.Println("unsupported inbound type")
+	}
+	return nil
+}
+
+func extractInboundsConfig(unnamedArgs []string) []conf.InboundDetourConfig {
+	ins := make([]conf.InboundDetourConfig, 0)
+	for _, arg := range unnamedArgs {
+		r, err := loadArg(arg)
+		if err != nil {
+			base.Fatalf("failed to load %s: %s", arg, err)
+		}
+		conf, err := serial.DecodeJSONConfig(r)
+		if err != nil {
+			base.Fatalf("failed to decode %s: %s", arg, err)
+		}
+		ins = append(ins, conf.InboundConfigs...)
+	}
+	return ins
+}
+
+func executeInboundUserAction(ctx context.Context, client handlerService.HandlerServiceClient, inb conf.InboundDetourConfig, action func(ctx context.Context, client handlerService.HandlerServiceClient, tag string, user *protocol.User) error) int {
+	success := 0
+
+	tag := inb.Tag
+	if len(tag) < 1 {
+		return success
+	}
+
+	fmt.Println("processing inbound:", tag)
+	built, err := inb.Build()
+	if err != nil {
+		fmt.Println("failed to build config:", err)
+		return success
+	}
+
+	users := extractInboundUsers(built)
+	if users == nil {
+		return success
+	}
+
+	for _, user := range users {
+		if len(user.Email) < 1 {
+			continue
+		}
+		if err := action(ctx, client, inb.Tag, user); err == nil {
+			fmt.Println("result: ok")
+			success += 1
+		} else {
+			fmt.Println(err)
+		}
+	}
+	return success
+}

main/commands/all/api/inbound_user_remove.go

@@ -0,0 +1,62 @@
+package api
+
+import (
+	"fmt"
+
+	handlerService "github.com/xtls/xray-core/app/proxyman/command"
+	cserial "github.com/xtls/xray-core/common/serial"
+
+	"github.com/xtls/xray-core/main/commands/base"
+)
+
+var cmdRemoveInboundUsers = &base.Command{
+	CustomFlags: true,
+	UsageLine:   "{{.Exec}} api rmu [--server=127.0.0.1:8080] -tag=tag <email1> [email2]...",
+	Short:       "Remove users from inbounds",
+	Long: `
+Remove users from inbounds.
+Arguments:
+	-s, -server
+		The API server address. Default 127.0.0.1:8080
+	-t, -timeout
+		Timeout seconds to call API. Default 3
+	-tag
+		Inbound tag
+Example:
+    {{.Exec}} {{.LongName}} --server=127.0.0.1:8080 -tag="vless-in" "xray@love.com" ...
+`,
+	Run: executeRemoveUsers,
+}
+
+func executeRemoveUsers(cmd *base.Command, args []string) {
+	setSharedFlags(cmd)
+	var tag string
+	cmd.Flag.StringVar(&tag, "tag", "", "")
+	cmd.Flag.Parse(args)
+	emails := cmd.Flag.Args()
+	if len(tag) < 1 {
+		base.Fatalf("inbound tag not specified")
+	}
+
+	conn, ctx, close := dialAPIServer()
+	defer close()
+	client := handlerService.NewHandlerServiceClient(conn)
+
+	success := 0
+	for _, email := range emails {
+		fmt.Println("remove user:", email)
+		_, err := client.AlterInbound(ctx, &handlerService.AlterInboundRequest{
+			Tag: tag,
+			Operation: cserial.ToTypedMessage(
+				&handlerService.RemoveUserOperation{
+					Email: email,
+				}),
+		})
+		if err == nil {
+			success += 1
+		} else {
+			fmt.Println(err)
+		}
+	}
+	fmt.Println("Removed", success, "user(s) in total.")
+}

main/commands/all/commands.go

@@ -17,5 +17,6 @@ func init() {
 		cmdX25519,
 		cmdWG,
 		cmdMLDSA65,
+		cmdMLKEM768,
 	)
 }

main/commands/all/curve25519.go

@@ -1,17 +1,13 @@
 package all
 
 import (
+	"crypto/ecdh"
 	"crypto/rand"
 	"encoding/base64"
 	"fmt"
-
-	"golang.org/x/crypto/curve25519"
 )
 
 func Curve25519Genkey(StdEncoding bool, input_base64 string) {
-	var output string
-	var err error
-	var privateKey, publicKey []byte
 	var encoding *base64.Encoding
 	if *input_stdEncoding || StdEncoding {
 		encoding = base64.StdEncoding
@@ -19,40 +15,32 @@ func Curve25519Genkey(StdEncoding bool, input_base64 string) {
 		encoding = base64.RawURLEncoding
 	}
 
+	var privateKey []byte
 	if len(input_base64) > 0 {
-		privateKey, err = encoding.DecodeString(input_base64)
-		if err != nil {
-			output = err.Error()
-			goto out
-		}
-		if len(privateKey) != curve25519.ScalarSize {
-			output = "Invalid length of private key."
-			goto out
+		privateKey, _ = encoding.DecodeString(input_base64)
+		if len(privateKey) != 32 {
+			fmt.Println("Invalid length of X25519 private key.")
+			return
 		}
 	}
-
 	if privateKey == nil {
-		privateKey = make([]byte, curve25519.ScalarSize)
-		if _, err = rand.Read(privateKey); err != nil {
-			output = err.Error()
-			goto out
-		}
+		privateKey = make([]byte, 32)
+		rand.Read(privateKey)
 	}
 
 	// Modify random bytes using algorithm described at:
-	// https://cr.yp.to/ecdh.html.
+	// https://cr.yp.to/ecdh.html
+	// (Just to make sure printing the real private key)
 	privateKey[0] &= 248
 	privateKey[31] &= 127
 	privateKey[31] |= 64
 
-	if publicKey, err = curve25519.X25519(privateKey, curve25519.Basepoint); err != nil {
-		output = err.Error()
-		goto out
+	key, err := ecdh.X25519().NewPrivateKey(privateKey)
+	if err != nil {
+		fmt.Println(err.Error())
+		return
 	}
-
-	output = fmt.Sprintf("Private key: %v\nPublic key: %v",
+	fmt.Printf("PrivateKey: %v\nPassword: %v",
 		encoding.EncodeToString(privateKey),
-		encoding.EncodeToString(publicKey))
-out:
-	fmt.Println(output)
+		encoding.EncodeToString(key.PublicKey().Bytes()))
 }

main/commands/all/mldsa65.go

@@ -11,9 +11,9 @@ import (
 
 var cmdMLDSA65 = &base.Command{
 	UsageLine: `{{.Exec}} mldsa65 [-i "seed (base64.RawURLEncoding)"]`,
-	Short:     `Generate key pair for ML-DSA-65 post-quantum signature`,
+	Short:     `Generate key pair for ML-DSA-65 post-quantum signature (REALITY)`,
 	Long: `
-Generate key pair for ML-DSA-65 post-quantum signature.
+Generate key pair for ML-DSA-65 post-quantum signature (REALITY).
 
 Random: {{.Exec}} mldsa65
 
@@ -25,12 +25,16 @@ func init() {
 	cmdMLDSA65.Run = executeMLDSA65 // break init loop
 }
 
-var input_seed = cmdMLDSA65.Flag.String("i", "", "")
+var input_mldsa65 = cmdMLDSA65.Flag.String("i", "", "")
 
 func executeMLDSA65(cmd *base.Command, args []string) {
 	var seed [32]byte
-	if len(*input_seed) > 0 {
-		s, _ := base64.RawURLEncoding.DecodeString(*input_seed)
+	if len(*input_mldsa65) > 0 {
+		s, _ := base64.RawURLEncoding.DecodeString(*input_mldsa65)
+		if len(s) != 32 {
+			fmt.Println("Invalid length of ML-DSA-65 seed.")
+			return
+		}
 		seed = [32]byte(s)
 	} else {
 		rand.Read(seed[:])

main/commands/all/mlkem768.go

@@ -0,0 +1,50 @@
+package all
+
+import (
+	"crypto/mlkem"
+	"crypto/rand"
+	"crypto/sha3"
+	"encoding/base64"
+	"fmt"
+
+	"github.com/xtls/xray-core/main/commands/base"
+)
+
+var cmdMLKEM768 = &base.Command{
+	UsageLine: `{{.Exec}} mlkem768 [-i "seed (base64.RawURLEncoding)"]`,
+	Short:     `Generate key pair for ML-KEM-768 post-quantum key exchange (VLESS)`,
+	Long: `
+Generate key pair for ML-KEM-768 post-quantum key exchange (VLESS).
+
+Random: {{.Exec}} mlkem768
+
+From seed: {{.Exec}} mlkem768 -i "seed (base64.RawURLEncoding)"
+`,
+}
+
+func init() {
+	cmdMLKEM768.Run = executeMLKEM768 // break init loop
+}
+
+var input_mlkem768 = cmdMLKEM768.Flag.String("i", "", "")
+
+func executeMLKEM768(cmd *base.Command, args []string) {
+	var seed [64]byte
+	if len(*input_mlkem768) > 0 {
+		s, _ := base64.RawURLEncoding.DecodeString(*input_mlkem768)
+		if len(s) != 64 {
+			fmt.Println("Invalid length of ML-KEM-768 seed.")
+			return
+		}
+		seed = [64]byte(s)
+	} else {
+		rand.Read(seed[:])
+	}
+	key, _ := mlkem.NewDecapsulationKey768(seed[:])
+	client := key.EncapsulationKey().Bytes()
+	hash32 := sha3.Sum256(client)
+	fmt.Printf("Seed: %v\nClient: %v\nHash11: %v",
+		base64.RawURLEncoding.EncodeToString(seed[:]),
+		base64.RawURLEncoding.EncodeToString(client),
+		base64.RawURLEncoding.EncodeToString(hash32[:11]))
+}

main/commands/all/tls/ech.go

@@ -1,25 +1,26 @@
 package tls
 
 import (
-	"encoding/json"
+	"encoding/base64"
 	"encoding/pem"
 	"os"
-	"strings"
 
-	"github.com/OmarTariq612/goech"
-	"github.com/cloudflare/circl/hpke"
+	"github.com/xtls/reality/hpke"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/main/commands/base"
+	"github.com/xtls/xray-core/transport/internet/tls"
+	"golang.org/x/crypto/cryptobyte"
 )
 
 var cmdECH = &base.Command{
-	UsageLine: `{{.Exec}} tls ech [--serverName (string)] [--json]`,
+	UsageLine: `{{.Exec}} tls ech [--serverName (string)] [--pem] [-i "ECHServerKeys (base64.StdEncoding)"]`,
 	Short:     `Generate TLS-ECH certificates`,
 	Long: `
 Generate TLS-ECH certificates.
 
 Set serverName to your custom string: {{.Exec}} tls ech --serverName (string)
-Generate into json format: {{.Exec}} tls ech --json
+Generate into pem format: {{.Exec}} tls ech --pem
+Restore ECHConfigs from ECHServerKeys: {{.Exec}} tls ech -i "ECHServerKeys (base64.StdEncoding)"
 `, // Enable PQ signature schemes: {{.Exec}} tls ech --pq-signature-schemes-enabled
 }
 
@@ -27,43 +28,66 @@ func init() {
 	cmdECH.Run = executeECH
 }
 
-var input_pqSignatureSchemesEnabled = cmdECH.Flag.Bool("pqSignatureSchemesEnabled", false, "")
+var input_echServerKeys = cmdECH.Flag.String("i", "", "ECHServerKeys (base64.StdEncoding)")
+
+// var input_pqSignatureSchemesEnabled = cmdECH.Flag.Bool("pqSignatureSchemesEnabled", false, "")
 var input_serverName = cmdECH.Flag.String("serverName", "cloudflare-ech.com", "")
-var input_json = cmdECH.Flag.Bool("json", false, "True == turn on json output")
+var input_pem = cmdECH.Flag.Bool("pem", false, "True == turn on pem output")
 
 func executeECH(cmd *base.Command, args []string) {
-	var kem hpke.KEM
+	var kem uint16
 
-	if *input_pqSignatureSchemesEnabled {
-		kem = hpke.KEM_X25519_KYBER768_DRAFT00
-	} else {
-		kem = hpke.KEM_X25519_HKDF_SHA256
-	}
+	// if *input_pqSignatureSchemesEnabled {
+	// 	kem = 0x30 // hpke.KEM_X25519_KYBER768_DRAFT00
+	// } else {
+	kem = hpke.DHKEM_X25519_HKDF_SHA256
+	// }
 
-	echKeySet, err := goech.GenerateECHKeySet(0, *input_serverName, kem)
+	echConfig, priv, err := tls.GenerateECHKeySet(0, *input_serverName, kem)
 	common.Must(err)
 
-	configBuffer, _ := echKeySet.ECHConfig.MarshalBinary()
-	keyBuffer, _ := echKeySet.MarshalBinary()
-
-	configPEM := string(pem.EncodeToMemory(&pem.Block{Type: "ECH CONFIGS", Bytes: configBuffer}))
-	keyPEM := string(pem.EncodeToMemory(&pem.Block{Type: "ECH KEYS", Bytes: keyBuffer}))
-	if *input_json {
-		jECHConfigs := map[string]interface{}{
-			"configs": strings.Split(strings.TrimSpace(string(configPEM)), "\n"),
-		}
-		jECHKey := map[string]interface{}{
-			"key": strings.Split(strings.TrimSpace(string(keyPEM)), "\n"),
-		}
-
-		for _, i := range []map[string]interface{}{jECHConfigs, jECHKey} {
-			content, err := json.MarshalIndent(i, "", "  ")
-			common.Must(err)
-			os.Stdout.Write(content)
-			os.Stdout.WriteString("\n")
-		}
+	var configBuffer, keyBuffer []byte
+	if *input_echServerKeys == "" {
+		configBytes, _ := tls.MarshalBinary(echConfig)
+		var b cryptobyte.Builder
+		b.AddUint16LengthPrefixed(func(child *cryptobyte.Builder) {
+			child.AddBytes(configBytes)
+		})
+		configBuffer, _ = b.Bytes()
+		var b2 cryptobyte.Builder
+		b2.AddUint16(uint16(len(priv)))
+		b2.AddBytes(priv)
+		b2.AddUint16(uint16(len(configBytes)))
+		b2.AddBytes(configBytes)
+		keyBuffer, _ = b2.Bytes()
 	} else {
+		keySetsByte, err := base64.StdEncoding.DecodeString(*input_echServerKeys)
+		if err != nil {
+			os.Stdout.WriteString("Failed to decode ECHServerKeys: " + err.Error() + "\n")
+			return
+		}
+		keyBuffer = keySetsByte
+		KeySets, err := tls.ConvertToGoECHKeys(keySetsByte)
+		if err != nil {
+			os.Stdout.WriteString("Failed to decode ECHServerKeys: " + err.Error() + "\n")
+			return
+		}
+		var b cryptobyte.Builder
+		for _, keySet := range KeySets {
+			b.AddUint16LengthPrefixed(func(child *cryptobyte.Builder) {
+				child.AddBytes(keySet.Config)
+			})
+		}
+		configBuffer, _ = b.Bytes()
+	}
+
+	if *input_pem {
+		configPEM := string(pem.EncodeToMemory(&pem.Block{Type: "ECH CONFIGS", Bytes: configBuffer}))
+		keyPEM := string(pem.EncodeToMemory(&pem.Block{Type: "ECH KEYS", Bytes: keyBuffer}))
 		os.Stdout.WriteString(configPEM)
 		os.Stdout.WriteString(keyPEM)
+	} else {
+		os.Stdout.WriteString("ECH config list: \n" + base64.StdEncoding.EncodeToString(configBuffer) + "\n")
+		os.Stdout.WriteString("ECH server keys: \n" + base64.StdEncoding.EncodeToString(keyBuffer) + "\n")
 	}
 }

main/commands/all/tls/ping.go

@@ -122,13 +122,19 @@ func executePing(cmd *base.Command, args []string) {
 }
 
 func printCertificates(certs []*x509.Certificate) {
+	var leaf *x509.Certificate
+	var length int
 	for _, cert := range certs {
-		if len(cert.DNSNames) == 0 {
-			continue
+		length += len(cert.Raw)
+		if len(cert.DNSNames) != 0 {
+			leaf = cert
 		}
-		fmt.Println("Cert's signature algorithm: ", cert.SignatureAlgorithm.String())
-		fmt.Println("Cert's publicKey algorithm: ", cert.PublicKeyAlgorithm.String())
-		fmt.Println("Cert's allowed domains: ", cert.DNSNames)
+	}
+	fmt.Println("Certificate chain's total length: ", length, "(certs count: "+strconv.Itoa(len(certs))+")")
+	if leaf != nil {
+		fmt.Println("Cert's signature algorithm: ", leaf.SignatureAlgorithm.String())
+		fmt.Println("Cert's publicKey algorithm: ", leaf.PublicKeyAlgorithm.String())
+		fmt.Println("Cert's allowed domains: ", leaf.DNSNames)
 	}
 }
 

main/commands/all/uuid.go

@@ -9,9 +9,9 @@ import (
 
 var cmdUUID = &base.Command{
 	UsageLine: `{{.Exec}} uuid [-i "example"]`,
-	Short:     `Generate UUIDv4 or UUIDv5`,
+	Short:     `Generate UUIDv4 or UUIDv5 (VLESS)`,
 	Long: `
-Generate UUIDv4 or UUIDv5.
+Generate UUIDv4 or UUIDv5 (VLESS).
 
 UUIDv4 (random): {{.Exec}} uuid
 

main/commands/all/wg.go

@@ -6,9 +6,9 @@ import (
 
 var cmdWG = &base.Command{
 	UsageLine: `{{.Exec}} wg [-i "private key (base64.StdEncoding)"]`,
-	Short:     `Generate key pair for wireguard key exchange`,
+	Short:     `Generate key pair for X25519 key exchange (WireGuard)`,
 	Long: `
-Generate key pair for wireguard key exchange.
+Generate key pair for X25519 key exchange (WireGuard).
 
 Random: {{.Exec}} wg
 

main/commands/all/x25519.go

@@ -6,9 +6,9 @@ import (
 
 var cmdX25519 = &base.Command{
 	UsageLine: `{{.Exec}} x25519 [-i "private key (base64.RawURLEncoding)"] [--std-encoding]`,
-	Short:     `Generate key pair for x25519 key exchange`,
+	Short:     `Generate key pair for X25519 key exchange (VLESS, REALITY)`,
 	Long: `
-Generate key pair for x25519 key exchange.
+Generate key pair for X25519 key exchange (VLESS, REALITY).
 
 Random: {{.Exec}} x25519
 

proxy/dokodemo/config.pb.go

@@ -26,8 +26,9 @@ type Config struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Address *net.IPOrDomain `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
-	Port    uint32          `protobuf:"varint,2,opt,name=port,proto3" json:"port,omitempty"`
+	Address *net.IPOrDomain   `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
+	Port    uint32            `protobuf:"varint,2,opt,name=port,proto3" json:"port,omitempty"`
+	PortMap map[string]string `protobuf:"bytes,3,rep,name=port_map,json=portMap,proto3" json:"port_map,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
 	// List of networks that the Dokodemo accepts.
 	Networks       []net.Network `protobuf:"varint,7,rep,packed,name=networks,proto3,enum=xray.common.net.Network" json:"networks,omitempty"`
 	FollowRedirect bool          `protobuf:"varint,5,opt,name=follow_redirect,json=followRedirect,proto3" json:"follow_redirect,omitempty"`
@@ -78,6 +79,13 @@ func (x *Config) GetPort() uint32 {
 	return 0
 }
 
+func (x *Config) GetPortMap() map[string]string {
+	if x != nil {
+		return x.PortMap
+	}
+	return nil
+}
+
 func (x *Config) GetNetworks() []net.Network {
 	if x != nil {
 		return x.Networks
@@ -108,26 +116,34 @@ var file_proxy_dokodemo_config_proto_rawDesc = []byte{
 	0x6d, 0x6f, 0x1a, 0x18, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x6e, 0x65, 0x74, 0x2f, 0x61,
 	0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x1a, 0x18, 0x63, 0x6f,
 	0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x6e, 0x65, 0x74, 0x2f, 0x6e, 0x65, 0x74, 0x77, 0x6f, 0x72, 0x6b,
-	0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xd1, 0x01, 0x0a, 0x06, 0x43, 0x6f, 0x6e, 0x66, 0x69,
+	0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xd2, 0x02, 0x0a, 0x06, 0x43, 0x6f, 0x6e, 0x66, 0x69,
 	0x67, 0x12, 0x35, 0x0a, 0x07, 0x61, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x18, 0x01, 0x20, 0x01,
 	0x28, 0x0b, 0x32, 0x1b, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e,
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-	0x18, 0x02, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x04, 0x70, 0x6f, 0x72, 0x74, 0x12, 0x34, 0x0a, 0x08,
-	0x6e, 0x65, 0x74, 0x77, 0x6f, 0x72, 0x6b, 0x73, 0x18, 0x07, 0x20, 0x03, 0x28, 0x0e, 0x32, 0x18,
-	0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x6e, 0x65, 0x74,
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+	0x70, 0x6f, 0x72, 0x74, 0x5f, 0x6d, 0x61, 0x70, 0x18, 0x03, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x28,
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+	0x12, 0x1d, 0x0a, 0x0a, 0x75, 0x73, 0x65, 0x72, 0x5f, 0x6c, 0x65, 0x76, 0x65, 0x6c, 0x18, 0x06,
+	0x20, 0x01, 0x28, 0x0d, 0x52, 0x09, 0x75, 0x73, 0x65, 0x72, 0x4c, 0x65, 0x76, 0x65, 0x6c, 0x1a,
+	0x3a, 0x0a, 0x0c, 0x50, 0x6f, 0x72, 0x74, 0x4d, 0x61, 0x70, 0x45, 0x6e, 0x74, 0x72, 0x79, 0x12,
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 }
 
 var (
@@ -142,20 +158,22 @@ func file_proxy_dokodemo_config_proto_rawDescGZIP() []byte {
 	return file_proxy_dokodemo_config_proto_rawDescData
 }
 
-var file_proxy_dokodemo_config_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
+var file_proxy_dokodemo_config_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
 var file_proxy_dokodemo_config_proto_goTypes = []any{
 	(*Config)(nil),         // 0: xray.proxy.dokodemo.Config
-	(*net.IPOrDomain)(nil), // 1: xray.common.net.IPOrDomain
-	(net.Network)(0),       // 2: xray.common.net.Network
+	nil,                    // 1: xray.proxy.dokodemo.Config.PortMapEntry
+	(*net.IPOrDomain)(nil), // 2: xray.common.net.IPOrDomain
+	(net.Network)(0),       // 3: xray.common.net.Network
 }
 var file_proxy_dokodemo_config_proto_depIdxs = []int32{
-	1, // 0: xray.proxy.dokodemo.Config.address:type_name -> xray.common.net.IPOrDomain
-	2, // 1: xray.proxy.dokodemo.Config.networks:type_name -> xray.common.net.Network
-	2, // [2:2] is the sub-list for method output_type
-	2, // [2:2] is the sub-list for method input_type
-	2, // [2:2] is the sub-list for extension type_name
-	2, // [2:2] is the sub-list for extension extendee
-	0, // [0:2] is the sub-list for field type_name
+	2, // 0: xray.proxy.dokodemo.Config.address:type_name -> xray.common.net.IPOrDomain
+	1, // 1: xray.proxy.dokodemo.Config.port_map:type_name -> xray.proxy.dokodemo.Config.PortMapEntry
+	3, // 2: xray.proxy.dokodemo.Config.networks:type_name -> xray.common.net.Network
+	3, // [3:3] is the sub-list for method output_type
+	3, // [3:3] is the sub-list for method input_type
+	3, // [3:3] is the sub-list for extension type_name
+	3, // [3:3] is the sub-list for extension extendee
+	0, // [0:3] is the sub-list for field type_name
 }
 
 func init() { file_proxy_dokodemo_config_proto_init() }
@@ -169,7 +187,7 @@ func file_proxy_dokodemo_config_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_proxy_dokodemo_config_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   1,
+			NumMessages:   2,
 			NumExtensions: 0,
 			NumServices:   0,
 		},

proxy/dokodemo/config.proto

@@ -13,6 +13,8 @@ message Config {
   xray.common.net.IPOrDomain address = 1;
   uint32 port = 2;
 
+  map<string, string> port_map = 3;
+
   // List of networks that the Dokodemo accepts.
   repeated xray.common.net.Network networks = 7;
 

proxy/dokodemo/dokodemo.go

@@ -3,6 +3,8 @@ package dokodemo
 import (
 	"context"
 	"runtime"
+	"strconv"
+	"strings"
 	"sync/atomic"
 
 	"github.com/xtls/xray-core/common"
@@ -36,6 +38,7 @@ type DokodemoDoor struct {
 	config        *Config
 	address       net.Address
 	port          net.Port
+	portMap       map[string]string
 	sockopt       *session.Sockopt
 }
 
@@ -47,6 +50,7 @@ func (d *DokodemoDoor) Init(config *Config, pm policy.Manager, sockopt *session.
 	d.config = config
 	d.address = config.GetPredefinedAddress()
 	d.port = net.Port(config.Port)
+	d.portMap = config.PortMap
 	d.policyManager = pm
 	d.sockopt = sockopt
 
@@ -73,6 +77,33 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn st
 		Port:    d.port,
 	}
 
+	if !d.config.FollowRedirect {
+		host, port, err := net.SplitHostPort(conn.LocalAddr().String())
+		if dest.Address == nil {
+			if err != nil {
+				dest.Address = net.DomainAddress("localhost")
+			} else {
+				if strings.Contains(host, ".") {
+					dest.Address = net.LocalHostIP
+				} else {
+					dest.Address = net.LocalHostIPv6
+				}
+			}
+		}
+		if dest.Port == 0 {
+			dest.Port = net.Port(common.Must2(strconv.Atoi(port)).(int))
+		}
+		if d.portMap != nil && d.portMap[port] != "" {
+			h, p, _ := net.SplitHostPort(d.portMap[port])
+			if len(h) > 0 {
+				dest.Address = net.ParseAddress(h)
+			}
+			if len(p) > 0 {
+				dest.Port = net.Port(common.Must2(strconv.Atoi(p)).(int))
+			}
+		}
+	}
+
 	destinationOverridden := false
 	if d.config.FollowRedirect {
 		outbounds := session.OutboundsFromContext(ctx)

proxy/freedom/config.pb.go

@@ -150,6 +150,8 @@ type Fragment struct {
 	LengthMax   uint64 `protobuf:"varint,4,opt,name=length_max,json=lengthMax,proto3" json:"length_max,omitempty"`
 	IntervalMin uint64 `protobuf:"varint,5,opt,name=interval_min,json=intervalMin,proto3" json:"interval_min,omitempty"`
 	IntervalMax uint64 `protobuf:"varint,6,opt,name=interval_max,json=intervalMax,proto3" json:"interval_max,omitempty"`
+	MaxSplitMin uint64 `protobuf:"varint,7,opt,name=max_split_min,json=maxSplitMin,proto3" json:"max_split_min,omitempty"`
+	MaxSplitMax uint64 `protobuf:"varint,8,opt,name=max_split_max,json=maxSplitMax,proto3" json:"max_split_max,omitempty"`
 }
 
 func (x *Fragment) Reset() {
@@ -224,6 +226,20 @@ func (x *Fragment) GetIntervalMax() uint64 {
 	return 0
 }
 
+func (x *Fragment) GetMaxSplitMin() uint64 {
+	if x != nil {
+		return x.MaxSplitMin
+	}
+	return 0
+}
+
+func (x *Fragment) GetMaxSplitMax() uint64 {
+	if x != nil {
+		return x.MaxSplitMax
+	}
+	return 0
+}
+
 type Noise struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -234,6 +250,7 @@ type Noise struct {
 	DelayMin  uint64 `protobuf:"varint,3,opt,name=delay_min,json=delayMin,proto3" json:"delay_min,omitempty"`
 	DelayMax  uint64 `protobuf:"varint,4,opt,name=delay_max,json=delayMax,proto3" json:"delay_max,omitempty"`
 	Packet    []byte `protobuf:"bytes,5,opt,name=packet,proto3" json:"packet,omitempty"`
+	ApplyTo   string `protobuf:"bytes,6,opt,name=apply_to,json=applyTo,proto3" json:"apply_to,omitempty"`
 }
 
 func (x *Noise) Reset() {
@@ -301,6 +318,13 @@ func (x *Noise) GetPacket() []byte {
 	return nil
 }
 
+func (x *Noise) GetApplyTo() string {
+	if x != nil {
+		return x.ApplyTo
+	}
+	return ""
+}
+
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -399,7 +423,7 @@ var file_proxy_freedom_config_proto_rawDesc = []byte{
 	0x72, 0x76, 0x65, 0x72, 0x18, 0x01, 0x20, 0x01, 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,
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+	0x52, 0x06, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x22, 0x98, 0x02, 0x0a, 0x08, 0x46, 0x72, 0x61,
 	0x67, 0x6d, 0x65, 0x6e, 0x74, 0x12, 0x21, 0x0a, 0x0c, 0x70, 0x61, 0x63, 0x6b, 0x65, 0x74, 0x73,
 	0x5f, 0x66, 0x72, 0x6f, 0x6d, 0x18, 0x01, 0x20, 0x01, 0x28, 0x04, 0x52, 0x0b, 0x70, 0x61, 0x63,
 	0x6b, 0x65, 0x74, 0x73, 0x46, 0x72, 0x6f, 0x6d, 0x12, 0x1d, 0x0a, 0x0a, 0x70, 0x61, 0x63, 0x6b,
@@ -412,57 +436,63 @@ var file_proxy_freedom_config_proto_rawDesc = []byte{
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+	0x6c, 0x65, 0x6e, 0x67, 0x74, 0x68, 0x5f, 0x6d, 0x61, 0x78, 0x18, 0x02, 0x20, 0x01, 0x28, 0x04,
+	0x52, 0x09, 0x6c, 0x65, 0x6e, 0x67, 0x74, 0x68, 0x4d, 0x61, 0x78, 0x12, 0x1b, 0x0a, 0x09, 0x64,
+	0x65, 0x6c, 0x61, 0x79, 0x5f, 0x6d, 0x69, 0x6e, 0x18, 0x03, 0x20, 0x01, 0x28, 0x04, 0x52, 0x08,
+	0x64, 0x65, 0x6c, 0x61, 0x79, 0x4d, 0x69, 0x6e, 0x12, 0x1b, 0x0a, 0x09, 0x64, 0x65, 0x6c, 0x61,
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+	0x61, 0x79, 0x4d, 0x61, 0x78, 0x12, 0x16, 0x0a, 0x06, 0x70, 0x61, 0x63, 0x6b, 0x65, 0x74, 0x18,
+	0x05, 0x20, 0x01, 0x28, 0x0c, 0x52, 0x06, 0x70, 0x61, 0x63, 0x6b, 0x65, 0x74, 0x12, 0x19, 0x0a,
+	0x08, 0x61, 0x70, 0x70, 0x6c, 0x79, 0x5f, 0x74, 0x6f, 0x18, 0x06, 0x20, 0x01, 0x28, 0x09, 0x52,
+	0x07, 0x61, 0x70, 0x70, 0x6c, 0x79, 0x54, 0x6f, 0x22, 0x97, 0x04, 0x0a, 0x06, 0x43, 0x6f, 0x6e,
+	0x66, 0x69, 0x67, 0x12, 0x52, 0x0a, 0x0f, 0x64, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x5f, 0x73, 0x74,
+	0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0e, 0x32, 0x29, 0x2e, 0x78,
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+	0x74, 0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x52, 0x0e, 0x64, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x53,
+	0x74, 0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x12, 0x5a, 0x0a, 0x14, 0x64, 0x65, 0x73, 0x74, 0x69,
+	0x6e, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x5f, 0x6f, 0x76, 0x65, 0x72, 0x72, 0x69, 0x64, 0x65, 0x18,
+	0x03, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x27, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f,
+	0x78, 0x79, 0x2e, 0x66, 0x72, 0x65, 0x65, 0x64, 0x6f, 0x6d, 0x2e, 0x44, 0x65, 0x73, 0x74, 0x69,
+	0x6e, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x4f, 0x76, 0x65, 0x72, 0x72, 0x69, 0x64, 0x65, 0x52, 0x13,
+	0x64, 0x65, 0x73, 0x74, 0x69, 0x6e, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x4f, 0x76, 0x65, 0x72, 0x72,
+	0x69, 0x64, 0x65, 0x12, 0x1d, 0x0a, 0x0a, 0x75, 0x73, 0x65, 0x72, 0x5f, 0x6c, 0x65, 0x76, 0x65,
+	0x6c, 0x18, 0x04, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x09, 0x75, 0x73, 0x65, 0x72, 0x4c, 0x65, 0x76,
+	0x65, 0x6c, 0x12, 0x38, 0x0a, 0x08, 0x66, 0x72, 0x61, 0x67, 0x6d, 0x65, 0x6e, 0x74, 0x18, 0x05,
+	0x20, 0x01, 0x28, 0x0b, 0x32, 0x1c, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78,
+	0x79, 0x2e, 0x66, 0x72, 0x65, 0x65, 0x64, 0x6f, 0x6d, 0x2e, 0x46, 0x72, 0x61, 0x67, 0x6d, 0x65,
+	0x6e, 0x74, 0x52, 0x08, 0x66, 0x72, 0x61, 0x67, 0x6d, 0x65, 0x6e, 0x74, 0x12, 0x25, 0x0a, 0x0e,
+	0x70, 0x72, 0x6f, 0x78, 0x79, 0x5f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x63, 0x6f, 0x6c, 0x18, 0x06,
+	0x20, 0x01, 0x28, 0x0d, 0x52, 0x0d, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x50, 0x72, 0x6f, 0x74, 0x6f,
+	0x63, 0x6f, 0x6c, 0x12, 0x31, 0x0a, 0x06, 0x6e, 0x6f, 0x69, 0x73, 0x65, 0x73, 0x18, 0x07, 0x20,
+	0x03, 0x28, 0x0b, 0x32, 0x19, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79,
+	0x2e, 0x66, 0x72, 0x65, 0x65, 0x64, 0x6f, 0x6d, 0x2e, 0x4e, 0x6f, 0x69, 0x73, 0x65, 0x52, 0x06,
+	0x6e, 0x6f, 0x69, 0x73, 0x65, 0x73, 0x22, 0xa9, 0x01, 0x0a, 0x0e, 0x44, 0x6f, 0x6d, 0x61, 0x69,
+	0x6e, 0x53, 0x74, 0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x12, 0x09, 0x0a, 0x05, 0x41, 0x53, 0x5f,
+	0x49, 0x53, 0x10, 0x00, 0x12, 0x0a, 0x0a, 0x06, 0x55, 0x53, 0x45, 0x5f, 0x49, 0x50, 0x10, 0x01,
+	0x12, 0x0b, 0x0a, 0x07, 0x55, 0x53, 0x45, 0x5f, 0x49, 0x50, 0x34, 0x10, 0x02, 0x12, 0x0b, 0x0a,
+	0x07, 0x55, 0x53, 0x45, 0x5f, 0x49, 0x50, 0x36, 0x10, 0x03, 0x12, 0x0c, 0x0a, 0x08, 0x55, 0x53,
+	0x45, 0x5f, 0x49, 0x50, 0x34, 0x36, 0x10, 0x04, 0x12, 0x0c, 0x0a, 0x08, 0x55, 0x53, 0x45, 0x5f,
+	0x49, 0x50, 0x36, 0x34, 0x10, 0x05, 0x12, 0x0c, 0x0a, 0x08, 0x46, 0x4f, 0x52, 0x43, 0x45, 0x5f,
+	0x49, 0x50, 0x10, 0x06, 0x12, 0x0d, 0x0a, 0x09, 0x46, 0x4f, 0x52, 0x43, 0x45, 0x5f, 0x49, 0x50,
+	0x34, 0x10, 0x07, 0x12, 0x0d, 0x0a, 0x09, 0x46, 0x4f, 0x52, 0x43, 0x45, 0x5f, 0x49, 0x50, 0x36,
+	0x10, 0x08, 0x12, 0x0e, 0x0a, 0x0a, 0x46, 0x4f, 0x52, 0x43, 0x45, 0x5f, 0x49, 0x50, 0x34, 0x36,
+	0x10, 0x09, 0x12, 0x0e, 0x0a, 0x0a, 0x46, 0x4f, 0x52, 0x43, 0x45, 0x5f, 0x49, 0x50, 0x36, 0x34,
+	0x10, 0x0a, 0x42, 0x58, 0x0a, 0x16, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70,
+	0x72, 0x6f, 0x78, 0x79, 0x2e, 0x66, 0x72, 0x65, 0x65, 0x64, 0x6f, 0x6d, 0x50, 0x01, 0x5a, 0x27,
+	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,
+	0x66, 0x72, 0x65, 0x65, 0x64, 0x6f, 0x6d, 0xaa, 0x02, 0x12, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x50,
+	0x72, 0x6f, 0x78, 0x79, 0x2e, 0x46, 0x72, 0x65, 0x65, 0x64, 0x6f, 0x6d, 0x62, 0x06, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

proxy/freedom/config.proto

@@ -19,6 +19,8 @@ message Fragment {
   uint64 length_max = 4;
   uint64 interval_min = 5;
   uint64 interval_max = 6;
+  uint64 max_split_min = 7;
+  uint64 max_split_max = 8;
 }
 message Noise {
   uint64 length_min = 1;
@@ -26,6 +28,7 @@ message Noise {
   uint64 delay_min = 3;
   uint64 delay_max = 4;
   bytes packet = 5;
+  string apply_to = 6;
 }
 
 message Config {

proxy/freedom/freedom.go

@@ -194,7 +194,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 		if destination.Network == net.Network_TCP {
 			if h.config.Fragment != nil {
 				errors.LogDebug(ctx, "FRAGMENT", h.config.Fragment.PacketsFrom, h.config.Fragment.PacketsTo, h.config.Fragment.LengthMin, h.config.Fragment.LengthMax,
-					h.config.Fragment.IntervalMin, h.config.Fragment.IntervalMax)
+					h.config.Fragment.IntervalMin, h.config.Fragment.IntervalMax, h.config.Fragment.MaxSplitMin, h.config.Fragment.MaxSplitMax)
 				writer = buf.NewWriter(&FragmentWriter{
 					fragment: h.config.Fragment,
 					writer:   conn,
@@ -211,6 +211,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 					noises:      h.config.Noises,
 					firstWrite:  true,
 					UDPOverride: UDPOverride,
+					remoteAddr:  net.DestinationFromAddr(conn.RemoteAddr()).Address,
 				}
 			}
 		}
@@ -285,14 +286,17 @@ func NewPacketReader(conn net.Conn, UDPOverride net.Destination, DialDest net.De
 		counter = statConn.ReadCounter
 	}
 	if c, ok := iConn.(*internet.PacketConnWrapper); ok {
-		isAddrChanged := false
-		if UDPOverride.Address != nil || UDPOverride.Port != 0 || DialDest.Address.Family().IsDomain() {
-			isAddrChanged = true
+		isOverridden := false
+		if UDPOverride.Address != nil || UDPOverride.Port != 0 {
+			isOverridden = true
 		}
+
 		return &PacketReader{
 			PacketConnWrapper: c,
 			Counter:           counter,
-			IsAddrChanged:     isAddrChanged,
+			IsOverridden:      isOverridden,
+			InitUnchangedAddr: DialDest.Address,
+			InitChangedAddr:   net.DestinationFromAddr(conn.RemoteAddr()).Address,
 		}
 	}
 	return &buf.PacketReader{Reader: conn}
@@ -301,7 +305,9 @@ func NewPacketReader(conn net.Conn, UDPOverride net.Destination, DialDest net.De
 type PacketReader struct {
 	*internet.PacketConnWrapper
 	stats.Counter
-	IsAddrChanged bool
+	IsOverridden      bool
+	InitUnchangedAddr net.Address
+	InitChangedAddr   net.Address
 }
 
 func (r *PacketReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
@@ -315,9 +321,13 @@ func (r *PacketReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
 	b.Resize(0, int32(n))
 	// if udp dest addr is changed, we are unable to get the correct src addr
 	// so we don't attach src info to udp packet, break cone behavior, assuming the dial dest is the expected scr addr
-	if !r.IsAddrChanged {
+	if !r.IsOverridden {
+		address := net.IPAddress(d.(*net.UDPAddr).IP)
+		if r.InitChangedAddr == address {
+			address = r.InitUnchangedAddr
+		}
 		b.UDP = &net.Destination{
-			Address: net.IPAddress(d.(*net.UDPAddr).IP),
+			Address: address,
 			Port:    net.Port(d.(*net.UDPAddr).Port),
 			Network: net.Network_UDP,
 		}
@@ -344,8 +354,7 @@ func NewPacketWriter(conn net.Conn, h *Handler, ctx context.Context, UDPOverride
 		// check this behavior and add it to map
 		resolvedUDPAddr := utils.NewTypedSyncMap[string, net.Address]()
 		if DialDest.Address.Family().IsDomain() {
-			RemoteAddress, _, _ := net.SplitHostPort(conn.RemoteAddr().String())
-			resolvedUDPAddr.Store(DialDest.Address.String(), net.ParseAddress(RemoteAddress))
+			resolvedUDPAddr.Store(DialDest.Address.Domain(), net.DestinationFromAddr(conn.RemoteAddr()).Address)
 		}
 		return &PacketWriter{
 			PacketConnWrapper: c,
@@ -446,6 +455,7 @@ type NoisePacketWriter struct {
 	noises      []*Noise
 	firstWrite  bool
 	UDPOverride net.Destination
+	remoteAddr  net.Address
 }
 
 // MultiBuffer writer with Noise before first packet
@@ -458,8 +468,24 @@ func (w *NoisePacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
 		}
 		var noise []byte
 		var err error
+		if w.remoteAddr.Family().IsDomain() {
+			panic("impossible, remoteAddr is always IP")
+		}
 		for _, n := range w.noises {
-			//User input string or base64 encoded string
+			switch n.ApplyTo {
+			case "ipv4":
+				if w.remoteAddr.Family().IsIPv6() {
+					continue
+				}
+			case "ipv6":
+				if w.remoteAddr.Family().IsIPv4() {
+					continue
+				}
+			case "ip":
+			default:
+				panic("unreachable, applyTo is ip/ipv4/ipv6")
+			}
+			//User input string or base64 encoded string or hex string
 			if n.Packet != nil {
 				noise = n.Packet
 			} else {
@@ -499,23 +525,29 @@ func (f *FragmentWriter) Write(b []byte) (int, error) {
 			return f.writer.Write(b)
 		}
 		data := b[5:recordLen]
-		buf := make([]byte, 1024)
+		buff := make([]byte, 2048)
 		var hello []byte
+		maxSplit := crypto.RandBetween(int64(f.fragment.MaxSplitMin), int64(f.fragment.MaxSplitMax))
+		var splitNum int64
 		for from := 0; ; {
 			to := from + int(crypto.RandBetween(int64(f.fragment.LengthMin), int64(f.fragment.LengthMax)))
-			if to > len(data) {
+			splitNum++
+			if to > len(data) || (maxSplit > 0 && splitNum >= maxSplit) {
 				to = len(data)
 			}
-			copy(buf[:3], b)
-			copy(buf[5:], data[from:to])
 			l := to - from
+			if 5+l > len(buff) {
+				buff = make([]byte, 5+l)
+			}
+			copy(buff[:3], b)
+			copy(buff[5:], data[from:to])
 			from = to
-			buf[3] = byte(l >> 8)
-			buf[4] = byte(l)
+			buff[3] = byte(l >> 8)
+			buff[4] = byte(l)
 			if f.fragment.IntervalMax == 0 { // combine fragmented tlshello if interval is 0
-				hello = append(hello, buf[:5+l]...)
+				hello = append(hello, buff[:5+l]...)
 			} else {
-				_, err := f.writer.Write(buf[:5+l])
+				_, err := f.writer.Write(buff[:5+l])
 				time.Sleep(time.Duration(crypto.RandBetween(int64(f.fragment.IntervalMin), int64(f.fragment.IntervalMax))) * time.Millisecond)
 				if err != nil {
 					return 0, err
@@ -542,17 +574,20 @@ func (f *FragmentWriter) Write(b []byte) (int, error) {
 	if f.fragment.PacketsFrom != 0 && (f.count < f.fragment.PacketsFrom || f.count > f.fragment.PacketsTo) {
 		return f.writer.Write(b)
 	}
+	maxSplit := crypto.RandBetween(int64(f.fragment.MaxSplitMin), int64(f.fragment.MaxSplitMax))
+	var splitNum int64
 	for from := 0; ; {
 		to := from + int(crypto.RandBetween(int64(f.fragment.LengthMin), int64(f.fragment.LengthMax)))
-		if to > len(b) {
+		splitNum++
+		if to > len(b) || (maxSplit > 0 && splitNum >= maxSplit) {
 			to = len(b)
 		}
 		n, err := f.writer.Write(b[from:to])
 		from += n
-		time.Sleep(time.Duration(crypto.RandBetween(int64(f.fragment.IntervalMin), int64(f.fragment.IntervalMax))) * time.Millisecond)
 		if err != nil {
 			return from, err
 		}
+		time.Sleep(time.Duration(crypto.RandBetween(int64(f.fragment.IntervalMin), int64(f.fragment.IntervalMax))) * time.Millisecond)
 		if from >= len(b) {
 			return from, nil
 		}

proxy/proxy.go

@@ -25,6 +25,7 @@ import (
 	"github.com/xtls/xray-core/common/signal"
 	"github.com/xtls/xray-core/features/routing"
 	"github.com/xtls/xray-core/features/stats"
+	"github.com/xtls/xray-core/proxy/vless/encryption"
 	"github.com/xtls/xray-core/transport"
 	"github.com/xtls/xray-core/transport/internet"
 	"github.com/xtls/xray-core/transport/internet/reality"
@@ -524,24 +525,40 @@ func XtlsFilterTls(buffer buf.MultiBuffer, trafficState *TrafficState, ctx conte
 	}
 }
 
-// UnwrapRawConn support unwrap stats, tls, utls, reality, proxyproto, uds-wrapper conn and get raw tcp/uds conn from it
+// UnwrapRawConn support unwrap encryption, stats, tls, utls, reality, proxyproto, uds-wrapper conn and get raw tcp/uds conn from it
 func UnwrapRawConn(conn net.Conn) (net.Conn, stats.Counter, stats.Counter) {
 	var readCounter, writerCounter stats.Counter
 	if conn != nil {
-		statConn, ok := conn.(*stat.CounterConnection)
-		if ok {
+		isEncryption := false
+		if clientConn, ok := conn.(*encryption.ClientConn); ok {
+			conn = clientConn.Conn
+			isEncryption = true
+		}
+		if serverConn, ok := conn.(*encryption.ServerConn); ok {
+			conn = serverConn.Conn
+			isEncryption = true
+		}
+		if xorConn, ok := conn.(*encryption.XorConn); ok {
+			if !xorConn.Divide {
+				return xorConn, nil, nil // full-random xorConn should not be penetrated
+			}
+			conn = xorConn.Conn
+		}
+		if statConn, ok := conn.(*stat.CounterConnection); ok {
 			conn = statConn.Connection
 			readCounter = statConn.ReadCounter
 			writerCounter = statConn.WriteCounter
 		}
-		if xc, ok := conn.(*tls.Conn); ok {
-			conn = xc.NetConn()
-		} else if utlsConn, ok := conn.(*tls.UConn); ok {
-			conn = utlsConn.NetConn()
-		} else if realityConn, ok := conn.(*reality.Conn); ok {
-			conn = realityConn.NetConn()
-		} else if realityUConn, ok := conn.(*reality.UConn); ok {
-			conn = realityUConn.NetConn()
+		if !isEncryption { // avoids double penetration
+			if xc, ok := conn.(*tls.Conn); ok {
+				conn = xc.NetConn()
+			} else if utlsConn, ok := conn.(*tls.UConn); ok {
+				conn = utlsConn.NetConn()
+			} else if realityConn, ok := conn.(*reality.Conn); ok {
+				conn = realityConn.NetConn()
+			} else if realityUConn, ok := conn.(*reality.UConn); ok {
+				conn = realityUConn.NetConn()
+			}
 		}
 		if pc, ok := conn.(*proxyproto.Conn); ok {
 			conn = pc.Raw()
@@ -632,9 +649,20 @@ func CopyRawConnIfExist(ctx context.Context, readerConn net.Conn, writerConn net
 }
 
 func readV(ctx context.Context, reader buf.Reader, writer buf.Writer, timer signal.ActivityUpdater, readCounter stats.Counter) error {
-	errors.LogInfo(ctx, "CopyRawConn readv")
+	errors.LogInfo(ctx, "CopyRawConn (maybe) readv")
 	if err := buf.Copy(reader, writer, buf.UpdateActivity(timer), buf.AddToStatCounter(readCounter)); err != nil {
 		return errors.New("failed to process response").Base(err)
 	}
 	return nil
 }
+
+func IsRAWTransport(conn stat.Connection) bool {
+	iConn := conn
+	if statConn, ok := iConn.(*stat.CounterConnection); ok {
+		iConn = statConn.Connection
+	}
+	_, ok1 := iConn.(*proxyproto.Conn)
+	_, ok2 := iConn.(*net.TCPConn)
+	_, ok3 := iConn.(*internet.UnixConnWrapper)
+	return ok1 || ok2 || ok3
+}

proxy/vless/account.go

@@ -18,6 +18,8 @@ func (a *Account) AsAccount() (protocol.Account, error) {
 		ID:         protocol.NewID(id),
 		Flow:       a.Flow,       // needs parser here?
 		Encryption: a.Encryption, // needs parser here?
+		XorMode:    a.XorMode,
+		Minutes:    a.Minutes,
 	}, nil
 }
 
@@ -27,8 +29,10 @@ type MemoryAccount struct {
 	ID *protocol.ID
 	// Flow of the account. May be "xtls-rprx-vision".
 	Flow string
-	// Encryption of the account. Used for client connections, and only accepts "none" for now.
+
 	Encryption string
+	XorMode    uint32
+	Minutes    uint32
 }
 
 // Equals implements protocol.Account.Equals().
@@ -45,5 +49,7 @@ func (a *MemoryAccount) ToProto() proto.Message {
 		Id:         a.ID.String(),
 		Flow:       a.Flow,
 		Encryption: a.Encryption,
+		XorMode:    a.XorMode,
+		Minutes:    a.Minutes,
 	}
 }

proxy/vless/account.pb.go

@@ -28,9 +28,10 @@ type Account struct {
 	// ID of the account, in the form of a UUID, e.g., "66ad4540-b58c-4ad2-9926-ea63445a9b57".
 	Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
 	// Flow settings. May be "xtls-rprx-vision".
-	Flow string `protobuf:"bytes,2,opt,name=flow,proto3" json:"flow,omitempty"`
-	// Encryption settings. Only applies to client side, and only accepts "none" for now.
+	Flow       string `protobuf:"bytes,2,opt,name=flow,proto3" json:"flow,omitempty"`
 	Encryption string `protobuf:"bytes,3,opt,name=encryption,proto3" json:"encryption,omitempty"`
+	XorMode    uint32 `protobuf:"varint,4,opt,name=xorMode,proto3" json:"xorMode,omitempty"`
+	Minutes    uint32 `protobuf:"varint,5,opt,name=minutes,proto3" json:"minutes,omitempty"`
 }
 
 func (x *Account) Reset() {
@@ -84,23 +85,40 @@ func (x *Account) GetEncryption() string {
 	return ""
 }
 
+func (x *Account) GetXorMode() uint32 {
+	if x != nil {
+		return x.XorMode
+	}
+	return 0
+}
+
+func (x *Account) GetMinutes() uint32 {
+	if x != nil {
+		return x.Minutes
+	}
+	return 0
+}
+
 var File_proxy_vless_account_proto protoreflect.FileDescriptor
 
 var file_proxy_vless_account_proto_rawDesc = []byte{
 	0x0a, 0x19, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2f, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x2f, 0x61, 0x63,
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-	0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+	0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x22, 0x81, 0x01,
+	0x0a, 0x07, 0x41, 0x63, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x12, 0x0e, 0x0a, 0x02, 0x69, 0x64, 0x18,
+	0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x02, 0x69, 0x64, 0x12, 0x12, 0x0a, 0x04, 0x66, 0x6c, 0x6f,
+	0x77, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x66, 0x6c, 0x6f, 0x77, 0x12, 0x1e, 0x0a,
+	0x0a, 0x65, 0x6e, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x18, 0x03, 0x20, 0x01, 0x28,
+	0x09, 0x52, 0x0a, 0x65, 0x6e, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x18, 0x0a,
+	0x07, 0x78, 0x6f, 0x72, 0x4d, 0x6f, 0x64, 0x65, 0x18, 0x04, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x07,
+	0x78, 0x6f, 0x72, 0x4d, 0x6f, 0x64, 0x65, 0x12, 0x18, 0x0a, 0x07, 0x6d, 0x69, 0x6e, 0x75, 0x74,
+	0x65, 0x73, 0x18, 0x05, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x07, 0x6d, 0x69, 0x6e, 0x75, 0x74, 0x65,
+	0x73, 0x42, 0x52, 0x0a, 0x14, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72,
+	0x6f, 0x78, 0x79, 0x2e, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x50, 0x01, 0x5a, 0x25, 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, 0xaa, 0x02, 0x10, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x2e,
+	0x56, 0x6c, 0x65, 0x73, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

proxy/vless/account.proto

@@ -11,6 +11,8 @@ message Account {
   string id = 1;
   // Flow settings. May be "xtls-rprx-vision".
   string flow = 2;
-  // Encryption settings. Only applies to client side, and only accepts "none" for now.
+
   string encryption = 3;
+  uint32 xorMode = 4;
+  uint32 minutes = 5;
 }

proxy/vless/encoding/encoding.go

@@ -172,7 +172,7 @@ func DecodeResponseHeader(reader io.Reader, request *protocol.RequestHeader) (*A
 }
 
 // XtlsRead filter and read xtls protocol
-func XtlsRead(reader buf.Reader, writer buf.Writer, timer *signal.ActivityTimer, conn net.Conn, input *bytes.Reader, rawInput *bytes.Buffer, trafficState *proxy.TrafficState, ob *session.Outbound, isUplink bool, ctx context.Context) error {
+func XtlsRead(reader buf.Reader, writer buf.Writer, timer *signal.ActivityTimer, conn net.Conn, peerCache *[]byte, input *bytes.Reader, rawInput *bytes.Buffer, trafficState *proxy.TrafficState, ob *session.Outbound, isUplink bool, ctx context.Context) error {
 	err := func() error {
 		for {
 			if isUplink && trafficState.Inbound.UplinkReaderDirectCopy || !isUplink && trafficState.Outbound.DownlinkReaderDirectCopy {
@@ -194,15 +194,21 @@ func XtlsRead(reader buf.Reader, writer buf.Writer, timer *signal.ActivityTimer,
 			if !buffer.IsEmpty() {
 				timer.Update()
 				if isUplink && trafficState.Inbound.UplinkReaderDirectCopy || !isUplink && trafficState.Outbound.DownlinkReaderDirectCopy {
-					// XTLS Vision processes struct TLS Conn's input and rawInput
-					if inputBuffer, err := buf.ReadFrom(input); err == nil {
-						if !inputBuffer.IsEmpty() {
-							buffer, _ = buf.MergeMulti(buffer, inputBuffer)
+					// XTLS Vision processes struct Encryption Conn's peerCache or TLS Conn's input and rawInput
+					if peerCache != nil {
+						if len(*peerCache) != 0 {
+							buffer = buf.MergeBytes(buffer, *peerCache)
 						}
-					}
-					if rawInputBuffer, err := buf.ReadFrom(rawInput); err == nil {
-						if !rawInputBuffer.IsEmpty() {
-							buffer, _ = buf.MergeMulti(buffer, rawInputBuffer)
+					} else {
+						if inputBuffer, err := buf.ReadFrom(input); err == nil {
+							if !inputBuffer.IsEmpty() {
+								buffer, _ = buf.MergeMulti(buffer, inputBuffer)
+							}
+						}
+						if rawInputBuffer, err := buf.ReadFrom(rawInput); err == nil {
+							if !rawInputBuffer.IsEmpty() {
+								buffer, _ = buf.MergeMulti(buffer, rawInputBuffer)
+							}
 						}
 					}
 				}

proxy/vless/encryption/client.go

@@ -0,0 +1,266 @@
+package encryption
+
+import (
+	"bytes"
+	"crypto/cipher"
+	"crypto/ecdh"
+	"crypto/mlkem"
+	"crypto/rand"
+	"crypto/sha3"
+	"io"
+	"net"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/xtls/xray-core/common/crypto"
+	"github.com/xtls/xray-core/common/errors"
+	"github.com/xtls/xray-core/common/protocol"
+)
+
+var ClientCipher byte
+
+func init() {
+	if protocol.HasAESGCMHardwareSupport {
+		ClientCipher = 1
+	}
+}
+
+type ClientInstance struct {
+	sync.RWMutex
+	nfsEKey *mlkem.EncapsulationKey768
+	hash11  [11]byte // no more capacity
+	xorMode uint32
+	xorPKey *ecdh.PublicKey
+	minutes time.Duration
+	expire  time.Time
+	baseKey []byte
+	ticket  []byte
+}
+
+type ClientConn struct {
+	net.Conn
+	instance  *ClientInstance
+	baseKey   []byte
+	ticket    []byte
+	random    []byte
+	aead      cipher.AEAD
+	nonce     []byte
+	peerAEAD  cipher.AEAD
+	peerNonce []byte
+	PeerCache []byte
+}
+
+func (i *ClientInstance) Init(nfsEKeyBytes, xorPKeyBytes []byte, xorMode, minutes uint32) (err error) {
+	if i.nfsEKey != nil {
+		err = errors.New("already initialized")
+		return
+	}
+	if i.nfsEKey, err = mlkem.NewEncapsulationKey768(nfsEKeyBytes); err != nil {
+		return
+	}
+	hash32 := sha3.Sum256(nfsEKeyBytes)
+	copy(i.hash11[:], hash32[:])
+	if xorMode > 0 {
+		i.xorMode = xorMode
+		if i.xorPKey, err = ecdh.X25519().NewPublicKey(xorPKeyBytes); err != nil {
+			return
+		}
+	}
+	i.minutes = time.Duration(minutes) * time.Minute
+	return
+}
+
+func (i *ClientInstance) Handshake(conn net.Conn) (*ClientConn, error) {
+	if i.nfsEKey == nil {
+		return nil, errors.New("uninitialized")
+	}
+	if i.xorMode > 0 {
+		conn, _ = NewXorConn(conn, i.xorMode, i.xorPKey, nil)
+	}
+	c := &ClientConn{Conn: conn}
+
+	if i.minutes > 0 {
+		i.RLock()
+		if time.Now().Before(i.expire) {
+			c.instance = i
+			c.baseKey = i.baseKey
+			c.ticket = i.ticket
+			i.RUnlock()
+			return c, nil
+		}
+		i.RUnlock()
+	}
+
+	pfsDKeySeed := make([]byte, 64)
+	rand.Read(pfsDKeySeed)
+	pfsDKey, _ := mlkem.NewDecapsulationKey768(pfsDKeySeed)
+	pfsEKeyBytes := pfsDKey.EncapsulationKey().Bytes()
+	nfsKey, encapsulatedNfsKey := i.nfsEKey.Encapsulate()
+	nfsAEAD := NewAEAD(ClientCipher, nfsKey, pfsEKeyBytes, encapsulatedNfsKey)
+
+	clientHello := make([]byte, 5+11+1+1184+1088+crypto.RandBetween(100, 1000))
+	EncodeHeader(clientHello, 1, 11+1+1184+1088)
+	copy(clientHello[5:], i.hash11[:])
+	clientHello[5+11] = ClientCipher
+	copy(clientHello[5+11+1:], pfsEKeyBytes)
+	copy(clientHello[5+11+1+1184:], encapsulatedNfsKey)
+	padding := clientHello[5+11+1+1184+1088:]
+	rand.Read(padding) // important
+	EncodeHeader(padding, 23, len(padding)-5)
+	nfsAEAD.Seal(padding[:5], clientHello[5:5+11+1], padding[5:len(padding)-16], padding[:5])
+
+	if _, err := c.Conn.Write(clientHello); err != nil {
+		return nil, err
+	}
+	// client can send more NFS AEAD paddings / messages if needed
+
+	_, t, l, err := ReadAndDiscardPaddings(c.Conn) // allow paddings before server hello
+	if err != nil {
+		return nil, err
+	}
+
+	if t != 1 {
+		return nil, errors.New("unexpected type ", t, ", expect server hello")
+	}
+	peerServerHello := make([]byte, 1088+21)
+	if l != len(peerServerHello) {
+		return nil, errors.New("unexpected length ", l, " for server hello")
+	}
+	if _, err := io.ReadFull(c.Conn, peerServerHello); err != nil {
+		return nil, err
+	}
+	encapsulatedPfsKey := peerServerHello[:1088]
+	c.ticket = append(i.hash11[:], peerServerHello[1088:]...)
+
+	pfsKey, err := pfsDKey.Decapsulate(encapsulatedPfsKey)
+	if err != nil {
+		return nil, err
+	}
+	c.baseKey = append(pfsKey, nfsKey...)
+
+	VLESS, _ := NewAEAD(ClientCipher, c.baseKey, encapsulatedPfsKey, encapsulatedNfsKey).Open(nil, append(i.hash11[:], ClientCipher), c.ticket[11:], pfsEKeyBytes)
+	if !bytes.Equal(VLESS, []byte("VLESS")) {
+		return nil, errors.New("invalid server").AtError()
+	}
+
+	if i.minutes > 0 {
+		i.Lock()
+		i.expire = time.Now().Add(i.minutes)
+		i.baseKey = c.baseKey
+		i.ticket = c.ticket
+		i.Unlock()
+	}
+
+	return c, nil
+}
+
+func (c *ClientConn) Write(b []byte) (int, error) {
+	if len(b) == 0 {
+		return 0, nil
+	}
+	var data []byte
+	for n := 0; n < len(b); {
+		b := b[n:]
+		if len(b) > 8192 {
+			b = b[:8192] // for avoiding another copy() in server's Read()
+		}
+		n += len(b)
+		if c.aead == nil {
+			data = make([]byte, 5+32+32+5+len(b)+16)
+			EncodeHeader(data, 0, 32+32)
+			copy(data[5:], c.ticket)
+			c.random = make([]byte, 32)
+			rand.Read(c.random)
+			copy(data[5+32:], c.random)
+			EncodeHeader(data[5+32+32:], 23, len(b)+16)
+			c.aead = NewAEAD(ClientCipher, c.baseKey, c.random, c.ticket)
+			c.nonce = make([]byte, 12)
+			c.aead.Seal(data[:5+32+32+5], c.nonce, b, data[5+32+32:5+32+32+5])
+		} else {
+			data = make([]byte, 5+len(b)+16)
+			EncodeHeader(data, 23, len(b)+16)
+			c.aead.Seal(data[:5], c.nonce, b, data[:5])
+			if bytes.Equal(c.nonce, MaxNonce) {
+				c.aead = NewAEAD(ClientCipher, c.baseKey, data[5:], data[:5])
+			}
+		}
+		IncreaseNonce(c.nonce)
+		if _, err := c.Conn.Write(data); err != nil {
+			return 0, err
+		}
+	}
+	return len(b), nil
+}
+
+func (c *ClientConn) Read(b []byte) (int, error) {
+	if len(b) == 0 {
+		return 0, nil
+	}
+	if c.peerAEAD == nil {
+		_, t, l, err := ReadAndDiscardPaddings(c.Conn) // allow paddings before random hello
+		if err != nil {
+			if c.instance != nil && strings.HasPrefix(err.Error(), "invalid header: ") { // 0-RTT's 0-RTT
+				c.instance.Lock()
+				if bytes.Equal(c.ticket, c.instance.ticket) {
+					c.instance.expire = time.Now() // expired
+				}
+				c.instance.Unlock()
+				return 0, errors.New("new handshake needed")
+			}
+			return 0, err
+		}
+		if t != 0 {
+			return 0, errors.New("unexpected type ", t, ", expect random hello")
+		}
+		peerRandomHello := make([]byte, 32)
+		if l != len(peerRandomHello) {
+			return 0, errors.New("unexpected length ", l, " for random hello")
+		}
+		if _, err := io.ReadFull(c.Conn, peerRandomHello); err != nil {
+			return 0, err
+		}
+		if c.random == nil {
+			return 0, errors.New("empty c.random")
+		}
+		c.peerAEAD = NewAEAD(ClientCipher, c.baseKey, peerRandomHello, c.random)
+		c.peerNonce = make([]byte, 12)
+	}
+	if len(c.PeerCache) != 0 {
+		n := copy(b, c.PeerCache)
+		c.PeerCache = c.PeerCache[n:]
+		return n, nil
+	}
+	h, t, l, err := ReadAndDecodeHeader(c.Conn) // l: 17~17000
+	if err != nil {
+		return 0, err
+	}
+	if t != 23 {
+		return 0, errors.New("unexpected type ", t, ", expect encrypted data")
+	}
+	peerData := make([]byte, l)
+	if _, err := io.ReadFull(c.Conn, peerData); err != nil {
+		return 0, err
+	}
+	dst := peerData[:l-16]
+	if len(dst) <= len(b) {
+		dst = b[:len(dst)] // avoids another copy()
+	}
+	var peerAEAD cipher.AEAD
+	if bytes.Equal(c.peerNonce, MaxNonce) {
+		peerAEAD = NewAEAD(ClientCipher, c.baseKey, peerData, h)
+	}
+	_, err = c.peerAEAD.Open(dst[:0], c.peerNonce, peerData, h)
+	if peerAEAD != nil {
+		c.peerAEAD = peerAEAD
+	}
+	IncreaseNonce(c.peerNonce)
+	if err != nil {
+		return 0, err
+	}
+	if len(dst) > len(b) {
+		c.PeerCache = dst[copy(b, dst):]
+		dst = b // for len(dst)
+	}
+	return len(dst), nil
+}

proxy/vless/encryption/common.go

@@ -0,0 +1,93 @@
+package encryption
+
+import (
+	"bytes"
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/hkdf"
+	"crypto/sha3"
+	"fmt"
+	"io"
+	"net"
+
+	"github.com/xtls/xray-core/common/errors"
+	"golang.org/x/crypto/chacha20poly1305"
+)
+
+var MaxNonce = bytes.Repeat([]byte{255}, 12)
+
+func EncodeHeader(h []byte, t byte, l int) {
+	switch t {
+	case 1:
+		h[0] = 1
+		h[1] = 1
+		h[2] = 1
+	case 0:
+		h[0] = 0
+		h[1] = 0
+		h[2] = 0
+	case 23:
+		h[0] = 23
+		h[1] = 3
+		h[2] = 3
+	}
+	h[3] = byte(l >> 8)
+	h[4] = byte(l)
+}
+
+func DecodeHeader(h []byte) (t byte, l int, err error) {
+	l = int(h[3])<<8 | int(h[4])
+	if h[0] == 23 && h[1] == 3 && h[2] == 3 {
+		t = 23
+	} else if h[0] == 0 && h[1] == 0 && h[2] == 0 {
+		t = 0
+	} else if h[0] == 1 && h[1] == 1 && h[2] == 1 {
+		t = 1
+	} else {
+		l = 0
+	}
+	if l < 17 || l > 17000 { // TODO: TLSv1.3 max length
+		err = errors.New("invalid header: ", fmt.Sprintf("%v", h[:5])) // DO NOT CHANGE: relied by client's Read()
+	}
+	return
+}
+
+func ReadAndDecodeHeader(conn net.Conn) (h []byte, t byte, l int, err error) {
+	h = make([]byte, 5)
+	if _, err = io.ReadFull(conn, h); err != nil {
+		return
+	}
+	t, l, err = DecodeHeader(h)
+	return
+}
+
+func ReadAndDiscardPaddings(conn net.Conn) (h []byte, t byte, l int, err error) {
+	for {
+		if h, t, l, err = ReadAndDecodeHeader(conn); err != nil || t != 23 {
+			return
+		}
+		if _, err = io.ReadFull(conn, make([]byte, l)); err != nil {
+			return
+		}
+	}
+}
+
+func NewAEAD(c byte, secret, salt, info []byte) (aead cipher.AEAD) {
+	key, _ := hkdf.Key(sha3.New256, secret, salt, string(info), 32)
+	if c&1 == 1 {
+		block, _ := aes.NewCipher(key)
+		aead, _ = cipher.NewGCM(block)
+	} else {
+		aead, _ = chacha20poly1305.New(key)
+	}
+	return
+}
+
+func IncreaseNonce(nonce []byte) {
+	for i := range 12 {
+		nonce[11-i]++
+		if nonce[11-i] != 0 {
+			break
+		}
+	}
+}

proxy/vless/encryption/server.go

@@ -0,0 +1,310 @@
+package encryption
+
+import (
+	"bytes"
+	"crypto/cipher"
+	"crypto/ecdh"
+	"crypto/mlkem"
+	"crypto/rand"
+	"crypto/sha3"
+	"fmt"
+	"io"
+	"net"
+	"sync"
+	"time"
+
+	"github.com/xtls/xray-core/common/crypto"
+	"github.com/xtls/xray-core/common/errors"
+)
+
+type ServerSession struct {
+	expire  time.Time
+	cipher  byte
+	baseKey []byte
+	randoms sync.Map
+}
+
+type ServerInstance struct {
+	sync.RWMutex
+	nfsDKey  *mlkem.DecapsulationKey768
+	hash11   [11]byte // no more capacity
+	xorMode  uint32
+	xorSKey  *ecdh.PrivateKey
+	minutes  time.Duration
+	sessions map[[32]byte]*ServerSession
+	closed   bool
+}
+
+type ServerConn struct {
+	net.Conn
+	cipher     byte
+	baseKey    []byte
+	ticket     []byte
+	peerRandom []byte
+	peerAEAD   cipher.AEAD
+	peerNonce  []byte
+	PeerCache  []byte
+	aead       cipher.AEAD
+	nonce      []byte
+}
+
+func (i *ServerInstance) Init(nfsDKeySeed, xorSKeyBytes []byte, xorMode, minutes uint32) (err error) {
+	if i.nfsDKey != nil {
+		err = errors.New("already initialized")
+		return
+	}
+	if i.nfsDKey, err = mlkem.NewDecapsulationKey768(nfsDKeySeed); err != nil {
+		return
+	}
+	hash32 := sha3.Sum256(i.nfsDKey.EncapsulationKey().Bytes())
+	copy(i.hash11[:], hash32[:])
+	if xorMode > 0 {
+		i.xorMode = xorMode
+		if i.xorSKey, err = ecdh.X25519().NewPrivateKey(xorSKeyBytes); err != nil {
+			return
+		}
+	}
+	if minutes > 0 {
+		i.minutes = time.Duration(minutes) * time.Minute
+		i.sessions = make(map[[32]byte]*ServerSession)
+		go func() {
+			for {
+				time.Sleep(time.Minute)
+				i.Lock()
+				if i.closed {
+					i.Unlock()
+					return
+				}
+				now := time.Now()
+				for ticket, session := range i.sessions {
+					if now.After(session.expire) {
+						delete(i.sessions, ticket)
+					}
+				}
+				i.Unlock()
+			}
+		}()
+	}
+	return
+}
+
+func (i *ServerInstance) Close() (err error) {
+	i.Lock()
+	i.closed = true
+	i.Unlock()
+	return
+}
+
+func (i *ServerInstance) Handshake(conn net.Conn) (*ServerConn, error) {
+	if i.nfsDKey == nil {
+		return nil, errors.New("uninitialized")
+	}
+	if i.xorMode > 0 {
+		var err error
+		if conn, err = NewXorConn(conn, i.xorMode, nil, i.xorSKey); err != nil {
+			return nil, err
+		}
+	}
+	c := &ServerConn{Conn: conn}
+
+	_, t, l, err := ReadAndDiscardPaddings(c.Conn) // allow paddings before client/ticket hello
+	if err != nil {
+		return nil, err
+	}
+
+	if t == 0 {
+		if i.minutes == 0 {
+			return nil, errors.New("0-RTT is not allowed")
+		}
+		peerTicketHello := make([]byte, 32+32)
+		if l != len(peerTicketHello) {
+			return nil, errors.New("unexpected length ", l, " for ticket hello")
+		}
+		if _, err := io.ReadFull(c.Conn, peerTicketHello); err != nil {
+			return nil, err
+		}
+		if !bytes.Equal(peerTicketHello[:11], i.hash11[:]) {
+			return nil, errors.New("unexpected hash11: ", fmt.Sprintf("%v", peerTicketHello[:11]))
+		}
+		i.RLock()
+		s := i.sessions[[32]byte(peerTicketHello)]
+		i.RUnlock()
+		if s == nil {
+			noises := make([]byte, crypto.RandBetween(100, 1000))
+			var err error
+			for err == nil {
+				rand.Read(noises)
+				_, _, err = DecodeHeader(noises)
+			}
+			c.Conn.Write(noises) // make client do new handshake
+			return nil, errors.New("expired ticket")
+		}
+		if _, replay := s.randoms.LoadOrStore([32]byte(peerTicketHello[32:]), true); replay {
+			return nil, errors.New("replay detected")
+		}
+		c.cipher = s.cipher
+		c.baseKey = s.baseKey
+		c.ticket = peerTicketHello[:32]
+		c.peerRandom = peerTicketHello[32:]
+		return c, nil
+	}
+
+	peerClientHello := make([]byte, 11+1+1184+1088)
+	if l != len(peerClientHello) {
+		return nil, errors.New("unexpected length ", l, " for client hello")
+	}
+	if _, err := io.ReadFull(c.Conn, peerClientHello); err != nil {
+		return nil, err
+	}
+	if !bytes.Equal(peerClientHello[:11], i.hash11[:]) {
+		return nil, errors.New("unexpected hash11: ", fmt.Sprintf("%v", peerClientHello[:11]))
+	}
+	c.cipher = peerClientHello[11]
+	pfsEKeyBytes := peerClientHello[11+1 : 11+1+1184]
+	encapsulatedNfsKey := peerClientHello[11+1+1184:]
+
+	pfsEKey, err := mlkem.NewEncapsulationKey768(pfsEKeyBytes)
+	if err != nil {
+		return nil, err
+	}
+	nfsKey, err := i.nfsDKey.Decapsulate(encapsulatedNfsKey)
+	if err != nil {
+		return nil, err
+	}
+	pfsKey, encapsulatedPfsKey := pfsEKey.Encapsulate()
+	c.baseKey = append(pfsKey, nfsKey...)
+	pfsAEAD := NewAEAD(c.cipher, c.baseKey, encapsulatedPfsKey, encapsulatedNfsKey)
+	c.ticket = append(i.hash11[:], pfsAEAD.Seal(nil, peerClientHello[:11+1], []byte("VLESS"), pfsEKeyBytes)...)
+	IncreaseNonce(peerClientHello[:11+1])
+
+	serverHello := make([]byte, 5+1088+21+crypto.RandBetween(100, 1000))
+	EncodeHeader(serverHello, 1, 1088+21)
+	copy(serverHello[5:], encapsulatedPfsKey)
+	copy(serverHello[5+1088:], c.ticket[11:])
+	padding := serverHello[5+1088+21:]
+	rand.Read(padding) // important
+	EncodeHeader(padding, 23, len(padding)-5)
+	pfsAEAD.Seal(padding[:5], peerClientHello[:11+1], padding[5:len(padding)-16], padding[:5])
+
+	if _, err := c.Conn.Write(serverHello); err != nil {
+		return nil, err
+	}
+	// server can send more PFS AEAD paddings / messages if needed
+
+	if i.minutes > 0 {
+		i.Lock()
+		i.sessions[[32]byte(c.ticket)] = &ServerSession{
+			expire:  time.Now().Add(i.minutes),
+			cipher:  c.cipher,
+			baseKey: c.baseKey,
+		}
+		i.Unlock()
+	}
+
+	return c, nil
+}
+
+func (c *ServerConn) Read(b []byte) (int, error) {
+	if len(b) == 0 {
+		return 0, nil
+	}
+	if c.peerAEAD == nil {
+		if c.peerRandom == nil { // 1-RTT's 0-RTT
+			_, t, l, err := ReadAndDiscardPaddings(c.Conn) // allow paddings before ticket hello
+			if err != nil {
+				return 0, err
+			}
+			if t != 0 {
+				return 0, errors.New("unexpected type ", t, ", expect ticket hello")
+			}
+			peerTicketHello := make([]byte, 32+32)
+			if l != len(peerTicketHello) {
+				return 0, errors.New("unexpected length ", l, " for ticket hello")
+			}
+			if _, err := io.ReadFull(c.Conn, peerTicketHello); err != nil {
+				return 0, err
+			}
+			if !bytes.Equal(peerTicketHello[:32], c.ticket) {
+				return 0, errors.New("naughty boy")
+			}
+			c.peerRandom = peerTicketHello[32:]
+		}
+		c.peerAEAD = NewAEAD(c.cipher, c.baseKey, c.peerRandom, c.ticket)
+		c.peerNonce = make([]byte, 12)
+	}
+	if len(c.PeerCache) != 0 {
+		n := copy(b, c.PeerCache)
+		c.PeerCache = c.PeerCache[n:]
+		return n, nil
+	}
+	h, t, l, err := ReadAndDecodeHeader(c.Conn) // l: 17~17000
+	if err != nil {
+		return 0, err
+	}
+	if t != 23 {
+		return 0, errors.New("unexpected type ", t, ", expect encrypted data")
+	}
+	peerData := make([]byte, l)
+	if _, err := io.ReadFull(c.Conn, peerData); err != nil {
+		return 0, err
+	}
+	dst := peerData[:l-16]
+	if len(dst) <= len(b) {
+		dst = b[:len(dst)] // avoids another copy()
+	}
+	var peerAEAD cipher.AEAD
+	if bytes.Equal(c.peerNonce, MaxNonce) {
+		peerAEAD = NewAEAD(c.cipher, c.baseKey, peerData, h)
+	}
+	_, err = c.peerAEAD.Open(dst[:0], c.peerNonce, peerData, h)
+	if peerAEAD != nil {
+		c.peerAEAD = peerAEAD
+	}
+	IncreaseNonce(c.peerNonce)
+	if err != nil {
+		return 0, err
+	}
+	if len(dst) > len(b) {
+		c.PeerCache = dst[copy(b, dst):]
+		dst = b // for len(dst)
+	}
+	return len(dst), nil
+}
+
+func (c *ServerConn) Write(b []byte) (int, error) {
+	if len(b) == 0 {
+		return 0, nil
+	}
+	var data []byte
+	for n := 0; n < len(b); {
+		b := b[n:]
+		if len(b) > 8192 {
+			b = b[:8192] // for avoiding another copy() in client's Read()
+		}
+		n += len(b)
+		if c.aead == nil {
+			if c.peerRandom == nil {
+				return 0, errors.New("empty c.peerRandom")
+			}
+			data = make([]byte, 5+32+5+len(b)+16)
+			EncodeHeader(data, 0, 32)
+			rand.Read(data[5 : 5+32])
+			EncodeHeader(data[5+32:], 23, len(b)+16)
+			c.aead = NewAEAD(c.cipher, c.baseKey, data[5:5+32], c.peerRandom)
+			c.nonce = make([]byte, 12)
+			c.aead.Seal(data[:5+32+5], c.nonce, b, data[5+32:5+32+5])
+		} else {
+			data = make([]byte, 5+len(b)+16)
+			EncodeHeader(data, 23, len(b)+16)
+			c.aead.Seal(data[:5], c.nonce, b, data[:5])
+			if bytes.Equal(c.nonce, MaxNonce) {
+				c.aead = NewAEAD(c.cipher, c.baseKey, data[5:], data[:5])
+			}
+		}
+		IncreaseNonce(c.nonce)
+		if _, err := c.Conn.Write(data); err != nil {
+			return 0, err
+		}
+	}
+	return len(b), nil
+}

proxy/vless/encryption/xor.go

@@ -0,0 +1,200 @@
+package encryption
+
+import (
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/ecdh"
+	"crypto/hkdf"
+	"crypto/rand"
+	"crypto/sha3"
+	"io"
+	"net"
+
+	"github.com/xtls/xray-core/common/errors"
+)
+
+type XorConn struct {
+	net.Conn
+	Divide bool
+
+	head     []byte
+	key      []byte
+	ctr      cipher.Stream
+	peerCtr  cipher.Stream
+	isHeader bool
+	skipNext bool
+
+	out_after0 bool
+	out_header []byte
+	out_skip   int
+
+	in_after0 bool
+	in_header []byte
+	in_skip   int
+}
+
+func NewCTR(key, iv []byte, isServer bool) cipher.Stream {
+	info := "CLIENT"
+	if isServer {
+		info = "SERVER" // avoids attackers sending traffic back to the client, though the encryption layer has its own protection
+	}
+	key, _ = hkdf.Key(sha3.New256, key, iv, info, 32) // avoids using pKey directly if attackers sent the basepoint, or whaterver they like
+	block, _ := aes.NewCipher(key)
+	return cipher.NewCTR(block, iv)
+}
+
+func NewXorConn(conn net.Conn, mode uint32, pKey *ecdh.PublicKey, sKey *ecdh.PrivateKey) (*XorConn, error) {
+	if mode == 0 || (pKey == nil && sKey == nil) || (pKey != nil && sKey != nil) {
+		return nil, errors.New("invalid parameters")
+	}
+	c := &XorConn{
+		Conn:       conn,
+		Divide:     mode == 1,
+		isHeader:   true,
+		out_header: make([]byte, 0, 5), // important
+		in_header:  make([]byte, 0, 5), // important
+	}
+	if pKey != nil {
+		c.head = make([]byte, 16+32)
+		rand.Read(c.head)
+		eSKey, _ := ecdh.X25519().NewPrivateKey(c.head[16:])
+		NewCTR(pKey.Bytes(), c.head[:16], false).XORKeyStream(c.head[16:], eSKey.PublicKey().Bytes()) // make X25519 public key distinguishable from random bytes
+		c.key, _ = eSKey.ECDH(pKey)
+		c.ctr = NewCTR(c.key, c.head[:16], false)
+	}
+	if sKey != nil {
+		peerHead := make([]byte, 16+32)
+		if _, err := io.ReadFull(c.Conn, peerHead); err != nil {
+			return nil, err
+		}
+		NewCTR(sKey.PublicKey().Bytes(), peerHead[:16], false).XORKeyStream(peerHead[16:], peerHead[16:]) // we don't use buggy elligator, because we have PSK :)
+		ePKey, err := ecdh.X25519().NewPublicKey(peerHead[16:])
+		if err != nil {
+			return nil, err
+		}
+		key, err := sKey.ECDH(ePKey)
+		if err != nil {
+			return nil, err
+		}
+		c.peerCtr = NewCTR(key, peerHead[:16], false)
+		c.head = make([]byte, 16)
+		rand.Read(c.head)                 // make sure the server always replies random bytes even when received replays, though it is not important
+		c.ctr = NewCTR(key, c.head, true) // the same key links the upload & download, though the encryption layer has its own link
+	}
+	return c, nil
+	//chacha20.NewUnauthenticatedCipher()
+}
+
+func (c *XorConn) Write(b []byte) (int, error) { // whole one/two records
+	if len(b) == 0 {
+		return 0, nil
+	}
+	if !c.out_after0 {
+		t, l, _ := DecodeHeader(b)
+		if t == 23 { // single 23
+			l = 5
+		} else { // 1/0 + 23, or noises only
+			l += 10
+			if t == 0 {
+				c.out_after0 = true
+				if c.Divide {
+					l -= 5
+				}
+			}
+		}
+		c.ctr.XORKeyStream(b[:l], b[:l]) // caller MUST discard b
+		l = len(b)
+		if c.head != nil {
+			b = append(c.head, b...)
+			c.head = nil
+		}
+		if _, err := c.Conn.Write(b); err != nil {
+			return 0, err
+		}
+		return l, nil
+	}
+	if c.Divide {
+		return c.Conn.Write(b)
+	}
+	for p := b; ; { // for XTLS
+		if len(p) <= c.out_skip {
+			c.out_skip -= len(p)
+			break
+		}
+		p = p[c.out_skip:]
+		c.out_skip = 0
+		need := 5 - len(c.out_header)
+		if len(p) < need {
+			c.out_header = append(c.out_header, p...)
+			c.ctr.XORKeyStream(p, p)
+			break
+		}
+		_, c.out_skip, _ = DecodeHeader(append(c.out_header, p[:need]...))
+		c.out_header = c.out_header[:0]
+		c.ctr.XORKeyStream(p[:need], p[:need])
+		p = p[need:]
+	}
+	if _, err := c.Conn.Write(b); err != nil {
+		return 0, err
+	}
+	return len(b), nil
+}
+
+func (c *XorConn) Read(b []byte) (int, error) { // 5-bytes, data, 5-bytes...
+	if len(b) == 0 {
+		return 0, nil
+	}
+	if !c.in_after0 || !c.isHeader {
+		if c.peerCtr == nil { // for client
+			peerIv := make([]byte, 16)
+			if _, err := io.ReadFull(c.Conn, peerIv); err != nil {
+				return 0, err
+			}
+			c.peerCtr = NewCTR(c.key, peerIv, true)
+		}
+		if _, err := io.ReadFull(c.Conn, b); err != nil {
+			return 0, err
+		}
+		if c.skipNext {
+			c.skipNext = false
+			return len(b), nil
+		}
+		c.peerCtr.XORKeyStream(b, b)
+		if c.isHeader { // always 5-bytes
+			if t, _, _ := DecodeHeader(b); t == 23 {
+				c.skipNext = true
+			} else {
+				c.isHeader = false
+				if t == 0 {
+					c.in_after0 = true
+				}
+			}
+		} else {
+			c.isHeader = true
+		}
+		return len(b), nil
+	}
+	if c.Divide {
+		return c.Conn.Read(b)
+	}
+	n, err := c.Conn.Read(b)
+	for p := b[:n]; ; { // for XTLS
+		if len(p) <= c.in_skip {
+			c.in_skip -= len(p)
+			break
+		}
+		p = p[c.in_skip:]
+		c.in_skip = 0
+		need := 5 - len(c.in_header)
+		if len(p) < need {
+			c.peerCtr.XORKeyStream(p, p)
+			c.in_header = append(c.in_header, p...)
+			break
+		}
+		c.peerCtr.XORKeyStream(p[:need], p[:need])
+		_, c.in_skip, _ = DecodeHeader(append(c.in_header, p[:need]...))
+		c.in_header = c.in_header[:0]
+		p = p[need:]
+	}
+	return n, err
+}

proxy/vless/inbound/config.pb.go

@@ -111,11 +111,11 @@ type Config struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Clients []*protocol.User `protobuf:"bytes,1,rep,name=clients,proto3" json:"clients,omitempty"`
-	// Decryption settings. Only applies to server side, and only accepts "none"
-	// for now.
-	Decryption string      `protobuf:"bytes,2,opt,name=decryption,proto3" json:"decryption,omitempty"`
-	Fallbacks  []*Fallback `protobuf:"bytes,3,rep,name=fallbacks,proto3" json:"fallbacks,omitempty"`
+	Clients    []*protocol.User `protobuf:"bytes,1,rep,name=clients,proto3" json:"clients,omitempty"`
+	Fallbacks  []*Fallback      `protobuf:"bytes,2,rep,name=fallbacks,proto3" json:"fallbacks,omitempty"`
+	Decryption string           `protobuf:"bytes,3,opt,name=decryption,proto3" json:"decryption,omitempty"`
+	XorMode    uint32           `protobuf:"varint,4,opt,name=xorMode,proto3" json:"xorMode,omitempty"`
+	Minutes    uint32           `protobuf:"varint,5,opt,name=minutes,proto3" json:"minutes,omitempty"`
 }
 
 func (x *Config) Reset() {
@@ -155,6 +155,13 @@ func (x *Config) GetClients() []*protocol.User {
 	return nil
 }
 
+func (x *Config) GetFallbacks() []*Fallback {
+	if x != nil {
+		return x.Fallbacks
+	}
+	return nil
+}
+
 func (x *Config) GetDecryption() string {
 	if x != nil {
 		return x.Decryption
@@ -162,11 +169,18 @@ func (x *Config) GetDecryption() string {
 	return ""
 }
 
-func (x *Config) GetFallbacks() []*Fallback {
+func (x *Config) GetXorMode() uint32 {
 	if x != nil {
-		return x.Fallbacks
+		return x.XorMode
 	}
-	return nil
+	return 0
+}
+
+func (x *Config) GetMinutes() uint32 {
+	if x != nil {
+		return x.Minutes
+	}
+	return 0
 }
 
 var File_proxy_vless_inbound_config_proto protoreflect.FileDescriptor
@@ -185,25 +199,28 @@ var file_proxy_vless_inbound_config_proto_rawDesc = []byte{
 	0x68, 0x12, 0x12, 0x0a, 0x04, 0x74, 0x79, 0x70, 0x65, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52,
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+	0x72, 0x18, 0x06, 0x20, 0x01, 0x28, 0x04, 0x52, 0x04, 0x78, 0x76, 0x65, 0x72, 0x22, 0xd4, 0x01,
 	0x0a, 0x06, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x34, 0x0a, 0x07, 0x63, 0x6c, 0x69, 0x65,
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 	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,
+	0x2e, 0x55, 0x73, 0x65, 0x72, 0x52, 0x07, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x73, 0x12, 0x40,
+	0x0a, 0x09, 0x66, 0x61, 0x6c, 0x6c, 0x62, 0x61, 0x63, 0x6b, 0x73, 0x18, 0x02, 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,
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-	0x50, 0x01, 0x5a, 0x2d, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78,
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-	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,
+	0x12, 0x1e, 0x0a, 0x0a, 0x64, 0x65, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x18, 0x03,
+	0x20, 0x01, 0x28, 0x09, 0x52, 0x0a, 0x64, 0x65, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e,
+	0x12, 0x18, 0x0a, 0x07, 0x78, 0x6f, 0x72, 0x4d, 0x6f, 0x64, 0x65, 0x18, 0x04, 0x20, 0x01, 0x28,
+	0x0d, 0x52, 0x07, 0x78, 0x6f, 0x72, 0x4d, 0x6f, 0x64, 0x65, 0x12, 0x18, 0x0a, 0x07, 0x6d, 0x69,
+	0x6e, 0x75, 0x74, 0x65, 0x73, 0x18, 0x05, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x07, 0x6d, 0x69, 0x6e,
+	0x75, 0x74, 0x65, 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

@@ -19,8 +19,9 @@ message Fallback {
 
 message Config {
   repeated xray.common.protocol.User clients = 1;
-  // Decryption settings. Only applies to server side, and only accepts "none"
-  // for now.
-  string decryption = 2;
-  repeated Fallback fallbacks = 3;
+  repeated Fallback fallbacks = 2;
+
+  string decryption = 3;
+  uint32 xorMode = 4;
+  uint32 minutes = 5;
 }

proxy/vless/inbound/inbound.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"context"
 	gotls "crypto/tls"
+	"encoding/base64"
 	"io"
 	"reflect"
 	"strconv"
@@ -29,6 +30,7 @@ import (
 	"github.com/xtls/xray-core/proxy"
 	"github.com/xtls/xray-core/proxy/vless"
 	"github.com/xtls/xray-core/proxy/vless/encoding"
+	"github.com/xtls/xray-core/proxy/vless/encryption"
 	"github.com/xtls/xray-core/transport/internet/reality"
 	"github.com/xtls/xray-core/transport/internet/stat"
 	"github.com/xtls/xray-core/transport/internet/tls"
@@ -67,6 +69,7 @@ type Handler struct {
 	policyManager         policy.Manager
 	validator             vless.Validator
 	dns                   dns.Client
+	decryption            *encryption.ServerInstance
 	fallbacks             map[string]map[string]map[string]*Fallback // or nil
 	// regexps               map[string]*regexp.Regexp       // or nil
 }
@@ -81,6 +84,15 @@ func New(ctx context.Context, config *Config, dc dns.Client, validator vless.Val
 		validator:             validator,
 	}
 
+	if s := strings.Split(config.Decryption, "."); len(s) == 2 {
+		nfsDKeySeed, _ := base64.RawURLEncoding.DecodeString(s[0])
+		xorSKeyBytes, _ := base64.RawURLEncoding.DecodeString(s[1])
+		handler.decryption = &encryption.ServerInstance{}
+		if err := handler.decryption.Init(nfsDKeySeed, xorSKeyBytes, config.XorMode, config.Minutes); err != nil {
+			return nil, errors.New("failed to use mlkem768seed").Base(err).AtError()
+		}
+	}
+
 	if config.Fallbacks != nil {
 		handler.fallbacks = make(map[string]map[string]map[string]*Fallback)
 		// handler.regexps = make(map[string]*regexp.Regexp)
@@ -159,6 +171,9 @@ func isMuxAndNotXUDP(request *protocol.RequestHeader, first *buf.Buffer) bool {
 
 // Close implements common.Closable.Close().
 func (h *Handler) Close() error {
+	if h.decryption != nil {
+		h.decryption.Close()
+	}
 	return errors.Combine(common.Close(h.validator))
 }
 
@@ -199,6 +214,14 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 		iConn = statConn.Connection
 	}
 
+	if h.decryption != nil {
+		var err error
+		connection, err = h.decryption.Handshake(connection)
+		if err != nil {
+			return errors.New("ML-KEM-768 handshake failed").Base(err).AtInfo()
+		}
+	}
+
 	sessionPolicy := h.policyManager.ForLevel(0)
 	if err := connection.SetReadDeadline(time.Now().Add(sessionPolicy.Timeouts.Handshake)); err != nil {
 		return errors.New("unable to set read deadline").Base(err).AtWarning()
@@ -462,6 +485,7 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 		// Flow: requestAddons.Flow,
 	}
 
+	var peerCache *[]byte
 	var input *bytes.Reader
 	var rawInput *bytes.Buffer
 	switch requestAddons.Flow {
@@ -474,6 +498,13 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 			case protocol.RequestCommandMux:
 				fallthrough // we will break Mux connections that contain TCP requests
 			case protocol.RequestCommandTCP:
+				if serverConn, ok := connection.(*encryption.ServerConn); ok {
+					peerCache = &serverConn.PeerCache
+					if xorConn, ok := serverConn.Conn.(*encryption.XorConn); (ok && !xorConn.Divide) || !proxy.IsRAWTransport(iConn) {
+						inbound.CanSpliceCopy = 3 // full-random xorConn / non-RAW transport can not use Linux Splice
+					}
+					break
+				}
 				var t reflect.Type
 				var p uintptr
 				if tlsConn, ok := iConn.(*tls.Conn); ok {
@@ -542,7 +573,7 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 		if requestAddons.Flow == vless.XRV {
 			ctx1 := session.ContextWithInbound(ctx, nil) // TODO enable splice
 			clientReader = proxy.NewVisionReader(clientReader, trafficState, true, ctx1)
-			err = encoding.XtlsRead(clientReader, serverWriter, timer, connection, input, rawInput, trafficState, nil, true, ctx1)
+			err = encoding.XtlsRead(clientReader, serverWriter, timer, connection, peerCache, input, rawInput, trafficState, nil, true, ctx1)
 		} else {
 			// from clientReader.ReadMultiBuffer to serverWriter.WriteMultiBuffer
 			err = buf.Copy(clientReader, serverWriter, buf.UpdateActivity(timer))

proxy/vless/outbound/outbound.go

@@ -4,7 +4,9 @@ import (
 	"bytes"
 	"context"
 	gotls "crypto/tls"
+	"encoding/base64"
 	"reflect"
+	"strings"
 	"time"
 	"unsafe"
 
@@ -24,6 +26,7 @@ import (
 	"github.com/xtls/xray-core/proxy"
 	"github.com/xtls/xray-core/proxy/vless"
 	"github.com/xtls/xray-core/proxy/vless/encoding"
+	"github.com/xtls/xray-core/proxy/vless/encryption"
 	"github.com/xtls/xray-core/transport"
 	"github.com/xtls/xray-core/transport/internet"
 	"github.com/xtls/xray-core/transport/internet/reality"
@@ -43,6 +46,7 @@ type Handler struct {
 	serverPicker  protocol.ServerPicker
 	policyManager policy.Manager
 	cone          bool
+	encryption    *encryption.ClientInstance
 }
 
 // New creates a new VLess outbound handler.
@@ -64,6 +68,16 @@ func New(ctx context.Context, config *Config) (*Handler, error) {
 		cone:          ctx.Value("cone").(bool),
 	}
 
+	a := handler.serverPicker.PickServer().PickUser().Account.(*vless.MemoryAccount)
+	if s := strings.Split(a.Encryption, "."); len(s) == 2 {
+		nfsEKeyBytes, _ := base64.RawURLEncoding.DecodeString(s[0])
+		xorPKeyBytes, _ := base64.RawURLEncoding.DecodeString(s[1])
+		handler.encryption = &encryption.ClientInstance{}
+		if err := handler.encryption.Init(nfsEKeyBytes, xorPKeyBytes, a.XorMode, a.Minutes); err != nil {
+			return nil, errors.New("failed to use mlkem768client").Base(err).AtError()
+		}
+	}
+
 	return handler, nil
 }
 
@@ -98,6 +112,14 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 	target := ob.Target
 	errors.LogInfo(ctx, "tunneling request to ", target, " via ", rec.Destination().NetAddr())
 
+	if h.encryption != nil {
+		var err error
+		conn, err = h.encryption.Handshake(conn)
+		if err != nil {
+			return errors.New("ML-KEM-768 handshake failed").Base(err).AtInfo()
+		}
+	}
+
 	command := protocol.RequestCommandTCP
 	if target.Network == net.Network_UDP {
 		command = protocol.RequestCommandUDP
@@ -120,6 +142,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 		Flow: account.Flow,
 	}
 
+	var peerCache *[]byte
 	var input *bytes.Reader
 	var rawInput *bytes.Buffer
 	allowUDP443 := false
@@ -138,6 +161,13 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 		case protocol.RequestCommandMux:
 			fallthrough // let server break Mux connections that contain TCP requests
 		case protocol.RequestCommandTCP:
+			if clientConn, ok := conn.(*encryption.ClientConn); ok {
+				peerCache = &clientConn.PeerCache
+				if xorConn, ok := clientConn.Conn.(*encryption.XorConn); (ok && !xorConn.Divide) || !proxy.IsRAWTransport(iConn) {
+					ob.CanSpliceCopy = 3 // full-random xorConn / non-RAW transport can not use Linux Splice
+				}
+				break
+			}
 			var t reflect.Type
 			var p uintptr
 			if tlsConn, ok := iConn.(*tls.Conn); ok {
@@ -272,7 +302,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 		}
 
 		if requestAddons.Flow == vless.XRV {
-			err = encoding.XtlsRead(serverReader, clientWriter, timer, conn, input, rawInput, trafficState, ob, false, ctx)
+			err = encoding.XtlsRead(serverReader, clientWriter, timer, conn, peerCache, input, rawInput, trafficState, ob, false, ctx)
 		} else {
 			// from serverReader.ReadMultiBuffer to clientWriter.WriteMultiBuffer
 			err = buf.Copy(serverReader, clientWriter, buf.UpdateActivity(timer))

transport/internet/reality/config.go

@@ -7,6 +7,7 @@ import (
 	"os"
 	"time"
 
+	"github.com/cloudflare/circl/sign/mldsa/mldsa65"
 	"github.com/xtls/reality"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/transport/internet"
@@ -27,13 +28,15 @@ func (c *Config) GetREALITYConfig() *reality.Config {
 		MaxClientVer: c.MaxClientVer,
 		MaxTimeDiff:  time.Duration(c.MaxTimeDiff) * time.Millisecond,
 
-		Mldsa65Key: c.Mldsa65Key,
-
 		NextProtos:             nil, // should be nil
 		SessionTicketsDisabled: true,
 
 		KeyLogWriter: KeyLogWriterFromConfig(c),
 	}
+	if c.Mldsa65Seed != nil {
+		_, key := mldsa65.NewKeyFromSeed((*[32]byte)(c.Mldsa65Seed))
+		config.Mldsa65Key = key.Bytes()
+	}
 	if c.LimitFallbackUpload != nil {
 		config.LimitFallbackUpload.AfterBytes = c.LimitFallbackUpload.AfterBytes
 		config.LimitFallbackUpload.BytesPerSec = c.LimitFallbackUpload.BytesPerSec

transport/internet/reality/config.pb.go

@@ -35,7 +35,7 @@ type Config struct {
 	MaxClientVer          []byte         `protobuf:"bytes,8,opt,name=max_client_ver,json=maxClientVer,proto3" json:"max_client_ver,omitempty"`
 	MaxTimeDiff           uint64         `protobuf:"varint,9,opt,name=max_time_diff,json=maxTimeDiff,proto3" json:"max_time_diff,omitempty"`
 	ShortIds              [][]byte       `protobuf:"bytes,10,rep,name=short_ids,json=shortIds,proto3" json:"short_ids,omitempty"`
-	Mldsa65Key            []byte         `protobuf:"bytes,11,opt,name=mldsa65_key,json=mldsa65Key,proto3" json:"mldsa65_key,omitempty"`
+	Mldsa65Seed           []byte         `protobuf:"bytes,11,opt,name=mldsa65_seed,json=mldsa65Seed,proto3" json:"mldsa65_seed,omitempty"`
 	LimitFallbackUpload   *LimitFallback `protobuf:"bytes,12,opt,name=limit_fallback_upload,json=limitFallbackUpload,proto3" json:"limit_fallback_upload,omitempty"`
 	LimitFallbackDownload *LimitFallback `protobuf:"bytes,13,opt,name=limit_fallback_download,json=limitFallbackDownload,proto3" json:"limit_fallback_download,omitempty"`
 	Fingerprint           string         `protobuf:"bytes,21,opt,name=Fingerprint,proto3" json:"Fingerprint,omitempty"`
@@ -148,9 +148,9 @@ func (x *Config) GetShortIds() [][]byte {
 	return nil
 }
 
-func (x *Config) GetMldsa65Key() []byte {
+func (x *Config) GetMldsa65Seed() []byte {
 	if x != nil {
-		return x.Mldsa65Key
+		return x.Mldsa65Seed
 	}
 	return nil
 }
@@ -293,7 +293,7 @@ var file_transport_internet_reality_config_proto_rawDesc = []byte{
 	0x72, 0x6e, 0x65, 0x74, 0x2f, 0x72, 0x65, 0x61, 0x6c, 0x69, 0x74, 0x79, 0x2f, 0x63, 0x6f, 0x6e,
 	0x66, 0x69, 0x67, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x1f, 0x78, 0x72, 0x61, 0x79, 0x2e,
 	0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e,
-	0x65, 0x74, 0x2e, 0x72, 0x65, 0x61, 0x6c, 0x69, 0x74, 0x79, 0x22, 0x96, 0x06, 0x0a, 0x06, 0x43,
+	0x65, 0x74, 0x2e, 0x72, 0x65, 0x61, 0x6c, 0x69, 0x74, 0x79, 0x22, 0x98, 0x06, 0x0a, 0x06, 0x43,
 	0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x12, 0x0a, 0x04, 0x73, 0x68, 0x6f, 0x77, 0x18, 0x01, 0x20,
 	0x01, 0x28, 0x08, 0x52, 0x04, 0x73, 0x68, 0x6f, 0x77, 0x12, 0x12, 0x0a, 0x04, 0x64, 0x65, 0x73,
 	0x74, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x64, 0x65, 0x73, 0x74, 0x12, 0x12, 0x0a,
@@ -312,55 +312,55 @@ var file_transport_internet_reality_config_proto_rawDesc = []byte{
 	0x65, 0x5f, 0x64, 0x69, 0x66, 0x66, 0x18, 0x09, 0x20, 0x01, 0x28, 0x04, 0x52, 0x0b, 0x6d, 0x61,
 	0x78, 0x54, 0x69, 0x6d, 0x65, 0x44, 0x69, 0x66, 0x66, 0x12, 0x1b, 0x0a, 0x09, 0x73, 0x68, 0x6f,
 	0x72, 0x74, 0x5f, 0x69, 0x64, 0x73, 0x18, 0x0a, 0x20, 0x03, 0x28, 0x0c, 0x52, 0x08, 0x73, 0x68,
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+	0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

transport/internet/reality/config.proto

@@ -18,7 +18,7 @@ message Config {
   uint64 max_time_diff = 9;
   repeated bytes short_ids = 10;
 
-  bytes mldsa65_key = 11;
+  bytes mldsa65_seed = 11;
   LimitFallback limit_fallback_upload = 12;
   LimitFallback limit_fallback_download = 13;
 

transport/internet/reality/reality.go

@@ -77,7 +77,8 @@ func (c *UConn) HandshakeAddress() net.Address {
 func (c *UConn) VerifyPeerCertificate(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error {
 	if c.Config.Show {
 		localAddr := c.LocalAddr().String()
-		fmt.Printf("REALITY localAddr: %v\tis using X25519MLKEM768 for TLS' communication: %v\n", localAddr, c.HandshakeState.ServerHello.SelectedGroup == utls.X25519MLKEM768)
+		curveID := *(*utls.CurveID)(unsafe.Pointer(reflect.ValueOf(c).Elem().FieldByName("curveID").UnsafeAddr()))
+		fmt.Printf("REALITY localAddr: %v\tis using X25519MLKEM768 for TLS' communication: %v\n", localAddr, curveID == utls.X25519MLKEM768)
 		fmt.Printf("REALITY localAddr: %v\tis using ML-DSA-65 for cert's extra verification: %v\n", localAddr, len(c.Config.Mldsa65Verify) > 0)
 	}
 	p, _ := reflect.TypeOf(c.Conn).Elem().FieldByName("peerCertificates")

transport/internet/sockopt_linux.go

@@ -64,26 +64,6 @@ func applyOutboundSocketOptions(network string, address string, fd uintptr, conf
 			}
 		}
 
-		if config.TcpKeepAliveInterval > 0 || config.TcpKeepAliveIdle > 0 {
-			if config.TcpKeepAliveInterval > 0 {
-				if err := syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, syscall.TCP_KEEPINTVL, int(config.TcpKeepAliveInterval)); err != nil {
-					return errors.New("failed to set TCP_KEEPINTVL", err)
-				}
-			}
-			if config.TcpKeepAliveIdle > 0 {
-				if err := syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, syscall.TCP_KEEPIDLE, int(config.TcpKeepAliveIdle)); err != nil {
-					return errors.New("failed to set TCP_KEEPIDLE", err)
-				}
-			}
-			if err := syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, syscall.SO_KEEPALIVE, 1); err != nil {
-				return errors.New("failed to set SO_KEEPALIVE", err)
-			}
-		} else if config.TcpKeepAliveInterval < 0 || config.TcpKeepAliveIdle < 0 {
-			if err := syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, syscall.SO_KEEPALIVE, 0); err != nil {
-				return errors.New("failed to unset SO_KEEPALIVE", err)
-			}
-		}
-
 		if config.TcpCongestion != "" {
 			if err := syscall.SetsockoptString(int(fd), syscall.SOL_TCP, syscall.TCP_CONGESTION, config.TcpCongestion); err != nil {
 				return errors.New("failed to set TCP_CONGESTION", err)

transport/internet/system_dialer.go

@@ -3,6 +3,7 @@ package internet
 import (
 	"context"
 	"math/rand"
+	gonet "net"
 	"syscall"
 	"time"
 
@@ -87,14 +88,34 @@ func (d *DefaultSystemDialer) Dial(ctx context.Context, src net.Address, dest ne
 			Dest: destAddr,
 		}, nil
 	}
-	goStdKeepAlive := time.Duration(0)
-	if sockopt != nil && (sockopt.TcpKeepAliveInterval != 0 || sockopt.TcpKeepAliveIdle != 0) {
-		goStdKeepAlive = time.Duration(-1)
+	// Chrome defaults
+	keepAliveConfig := gonet.KeepAliveConfig{
+		Enable:   true,
+		Idle:     45 * time.Second,
+		Interval: 45 * time.Second,
+		Count:    -1,
+	}
+	keepAlive := time.Duration(0)
+	if sockopt != nil {
+		if sockopt.TcpKeepAliveIdle*sockopt.TcpKeepAliveInterval < 0 {
+			return nil, errors.New("invalid TcpKeepAliveIdle or TcpKeepAliveInterval value: ", sockopt.TcpKeepAliveIdle, " ", sockopt.TcpKeepAliveInterval)
+		}
+		if sockopt.TcpKeepAliveIdle < 0 || sockopt.TcpKeepAliveInterval < 0 {
+			keepAlive = -1
+			keepAliveConfig.Enable = false
+		}
+		if sockopt.TcpKeepAliveIdle > 0 {
+			keepAliveConfig.Idle = time.Duration(sockopt.TcpKeepAliveIdle) * time.Second
+		}
+		if sockopt.TcpKeepAliveInterval > 0 {
+			keepAliveConfig.Interval = time.Duration(sockopt.TcpKeepAliveInterval) * time.Second
+		}
 	}
 	dialer := &net.Dialer{
-		Timeout:   time.Second * 16,
-		LocalAddr: resolveSrcAddr(dest.Network, src),
-		KeepAlive: goStdKeepAlive,
+		Timeout:         time.Second * 16,
+		LocalAddr:       resolveSrcAddr(dest.Network, src),
+		KeepAlive:       keepAlive,
+		KeepAliveConfig: keepAliveConfig,
 	}
 
 	if sockopt != nil || len(d.controllers) > 0 {

transport/internet/system_listener.go

@@ -2,6 +2,7 @@ package internet
 
 import (
 	"context"
+	gonet "net"
 	"os"
 	"runtime"
 	"strconv"
@@ -88,9 +89,25 @@ func (dl *DefaultListener) Listen(ctx context.Context, addr net.Addr, sockopt *S
 		network = addr.Network()
 		address = addr.String()
 		lc.Control = getControlFunc(ctx, sockopt, dl.controllers)
+		// default disable keepalive
+		lc.KeepAlive = -1
 		if sockopt != nil {
-			if sockopt.TcpKeepAliveInterval != 0 || sockopt.TcpKeepAliveIdle != 0 {
-				lc.KeepAlive = time.Duration(-1)
+			if sockopt.TcpKeepAliveIdle*sockopt.TcpKeepAliveInterval < 0 {
+				return nil, errors.New("invalid TcpKeepAliveIdle or TcpKeepAliveInterval value: ", sockopt.TcpKeepAliveIdle, " ", sockopt.TcpKeepAliveInterval)
+			}
+			lc.KeepAliveConfig = gonet.KeepAliveConfig{
+				Enable:   false,
+				Idle:     -1,
+				Interval: -1,
+				Count:    -1,
+			}
+			if sockopt.TcpKeepAliveIdle > 0 {
+				lc.KeepAliveConfig.Enable = true
+				lc.KeepAliveConfig.Idle = time.Duration(sockopt.TcpKeepAliveIdle) * time.Second
+			}
+			if sockopt.TcpKeepAliveInterval > 0 {
+				lc.KeepAliveConfig.Enable = true
+				lc.KeepAliveConfig.Interval = time.Duration(sockopt.TcpKeepAliveInterval) * time.Second
 			}
 			if sockopt.TcpMptcp {
 				lc.SetMultipathTCP(true)

transport/internet/tcp/dialer.go

@@ -2,6 +2,7 @@ package tcp
 
 import (
 	"context"
+	gotls "crypto/tls"
 	"slices"
 	"strings"
 
@@ -15,10 +16,6 @@ import (
 	"github.com/xtls/xray-core/transport/internet/tls"
 )
 
-func IsFromMitm(str string) bool {
-	return strings.ToLower(str) == "frommitm"
-}
-
 // Dial dials a new TCP connection to the given destination.
 func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.MemoryStreamConfig) (stat.Connection, error) {
 	errors.LogInfo(ctx, "dialing TCP to ", dest)
@@ -30,14 +27,17 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
 	if config := tls.ConfigFromStreamSettings(streamSettings); config != nil {
 		mitmServerName := session.MitmServerNameFromContext(ctx)
 		mitmAlpn11 := session.MitmAlpn11FromContext(ctx)
-		tlsConfig := config.GetTLSConfig(tls.WithDestination(dest))
-		if IsFromMitm(tlsConfig.ServerName) {
-			tlsConfig.ServerName = mitmServerName
+		var tlsConfig *gotls.Config
+		if tls.IsFromMitm(config.ServerName) {
+			tlsConfig = config.GetTLSConfig(tls.WithOverrideName(mitmServerName))
+		} else {
+			tlsConfig = config.GetTLSConfig(tls.WithDestination(dest))
 		}
+
 		isFromMitmVerify := false
 		if r, ok := tlsConfig.Rand.(*tls.RandCarrier); ok && len(r.VerifyPeerCertInNames) > 0 {
 			for i, name := range r.VerifyPeerCertInNames {
-				if IsFromMitm(name) {
+				if tls.IsFromMitm(name) {
 					isFromMitmVerify = true
 					r.VerifyPeerCertInNames[0], r.VerifyPeerCertInNames[i] = r.VerifyPeerCertInNames[i], r.VerifyPeerCertInNames[0]
 					r.VerifyPeerCertInNames = r.VerifyPeerCertInNames[1:]
@@ -56,7 +56,7 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
 				}
 			}
 		}
-		isFromMitmAlpn := len(tlsConfig.NextProtos) == 1 && IsFromMitm(tlsConfig.NextProtos[0])
+		isFromMitmAlpn := len(tlsConfig.NextProtos) == 1 && tls.IsFromMitm(tlsConfig.NextProtos[0])
 		if isFromMitmAlpn {
 			if mitmAlpn11 {
 				tlsConfig.NextProtos[0] = "http/1.1"

transport/internet/tcp/hub.go

@@ -42,6 +42,9 @@ func ListenTCP(ctx context.Context, address net.Address, port net.Port, streamSe
 	var listener net.Listener
 	var err error
 	if port == net.Port(0) { // unix
+		if !address.Family().IsDomain() {
+			return nil, errors.New("invalid unix listen: ", address).AtError()
+		}
 		listener, err = internet.ListenSystem(ctx, &net.UnixAddr{
 			Name: address.Domain(),
 			Net:  "unix",

transport/internet/tls/config.go

@@ -275,6 +275,9 @@ func getNewGetCertificateFunc(certs []*tls.Certificate, rejectUnknownSNI bool) f
 }
 
 func (c *Config) parseServerName() string {
+	if IsFromMitm(c.ServerName) {
+		return ""
+	}
 	return c.ServerName
 }
 
@@ -444,6 +447,16 @@ func (c *Config) GetTLSConfig(opts ...Option) *tls.Config {
 			config.KeyLogWriter = writer
 		}
 	}
+	if len(c.EchConfigList) > 0 || len(c.EchServerKeys) > 0 {
+		err := ApplyECH(c, config)
+		if err != nil {
+			if c.EchForceQuery == "full" {
+				errors.LogError(context.Background(), err)
+			} else {
+				errors.LogInfo(context.Background(), err)
+			}
+		}
+	}
 
 	return config
 }
@@ -463,6 +476,12 @@ func WithDestination(dest net.Destination) Option {
 	}
 }
 
+func WithOverrideName(serverName string) Option {
+	return func(config *tls.Config) {
+		config.ServerName = serverName
+	}
+}
+
 // WithNextProto sets the ALPN values in TLS config.
 func WithNextProto(protocol ...string) Option {
 	return func(config *tls.Config) {
@@ -503,3 +522,7 @@ func ParseCurveName(curveNames []string) []tls.CurveID {
 	}
 	return curveIDs
 }
+
+func IsFromMitm(str string) bool {
+	return strings.ToLower(str) == "frommitm"
+}

transport/internet/tls/config.pb.go

@@ -7,6 +7,7 @@
 package tls
 
 import (
+	internet "github.com/xtls/xray-core/transport/internet"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -216,7 +217,11 @@ type Config struct {
 	// @Document Replaces server_name to verify the peer cert.
 	// @Document After allow_insecure (automatically), if the server's cert can't be verified by any of these names, pinned_peer_certificate_chain_sha256 will be tried.
 	// @Critical
-	VerifyPeerCertInNames []string `protobuf:"bytes,17,rep,name=verify_peer_cert_in_names,json=verifyPeerCertInNames,proto3" json:"verify_peer_cert_in_names,omitempty"`
+	VerifyPeerCertInNames []string               `protobuf:"bytes,17,rep,name=verify_peer_cert_in_names,json=verifyPeerCertInNames,proto3" json:"verify_peer_cert_in_names,omitempty"`
+	EchServerKeys         []byte                 `protobuf:"bytes,18,opt,name=ech_server_keys,json=echServerKeys,proto3" json:"ech_server_keys,omitempty"`
+	EchConfigList         string                 `protobuf:"bytes,19,opt,name=ech_config_list,json=echConfigList,proto3" json:"ech_config_list,omitempty"`
+	EchForceQuery         string                 `protobuf:"bytes,20,opt,name=ech_force_query,json=echForceQuery,proto3" json:"ech_force_query,omitempty"`
+	EchSocketSettings     *internet.SocketConfig `protobuf:"bytes,21,opt,name=ech_socket_settings,json=echSocketSettings,proto3" json:"ech_socket_settings,omitempty"`
 }
 
 func (x *Config) Reset() {
@@ -361,6 +366,34 @@ func (x *Config) GetVerifyPeerCertInNames() []string {
 	return nil
 }
 
+func (x *Config) GetEchServerKeys() []byte {
+	if x != nil {
+		return x.EchServerKeys
+	}
+	return nil
+}
+
+func (x *Config) GetEchConfigList() string {
+	if x != nil {
+		return x.EchConfigList
+	}
+	return ""
+}
+
+func (x *Config) GetEchForceQuery() string {
+	if x != nil {
+		return x.EchForceQuery
+	}
+	return ""
+}
+
+func (x *Config) GetEchSocketSettings() *internet.SocketConfig {
+	if x != nil {
+		return x.EchSocketSettings
+	}
+	return nil
+}
+
 var File_transport_internet_tls_config_proto protoreflect.FileDescriptor
 
 var file_transport_internet_tls_config_proto_rawDesc = []byte{
@@ -368,81 +401,96 @@ var file_transport_internet_tls_config_proto_rawDesc = []byte{
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@@ -468,18 +516,20 @@ func file_transport_internet_tls_config_proto_rawDescGZIP() []byte {
 var file_transport_internet_tls_config_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
 var file_transport_internet_tls_config_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
 var file_transport_internet_tls_config_proto_goTypes = []any{
-	(Certificate_Usage)(0), // 0: xray.transport.internet.tls.Certificate.Usage
-	(*Certificate)(nil),    // 1: xray.transport.internet.tls.Certificate
-	(*Config)(nil),         // 2: xray.transport.internet.tls.Config
+	(Certificate_Usage)(0),        // 0: xray.transport.internet.tls.Certificate.Usage
+	(*Certificate)(nil),           // 1: xray.transport.internet.tls.Certificate
+	(*Config)(nil),                // 2: xray.transport.internet.tls.Config
+	(*internet.SocketConfig)(nil), // 3: xray.transport.internet.SocketConfig
 }
 var file_transport_internet_tls_config_proto_depIdxs = []int32{
 	0, // 0: xray.transport.internet.tls.Certificate.usage:type_name -> xray.transport.internet.tls.Certificate.Usage
 	1, // 1: xray.transport.internet.tls.Config.certificate:type_name -> xray.transport.internet.tls.Certificate
-	2, // [2:2] is the sub-list for method output_type
-	2, // [2:2] is the sub-list for method input_type
-	2, // [2:2] is the sub-list for extension type_name
-	2, // [2:2] is the sub-list for extension extendee
-	0, // [0:2] is the sub-list for field type_name
+	3, // 2: xray.transport.internet.tls.Config.ech_socket_settings:type_name -> xray.transport.internet.SocketConfig
+	3, // [3:3] is the sub-list for method output_type
+	3, // [3:3] is the sub-list for method input_type
+	3, // [3:3] is the sub-list for extension type_name
+	3, // [3:3] is the sub-list for extension extendee
+	0, // [0:3] is the sub-list for field type_name
 }
 
 func init() { file_transport_internet_tls_config_proto_init() }

transport/internet/tls/config.proto

@@ -6,6 +6,8 @@ option go_package = "github.com/xtls/xray-core/transport/internet/tls";
 option java_package = "com.xray.transport.internet.tls";
 option java_multiple_files = true;
 
+import "transport/internet/config.proto";
+
 message Certificate {
   // TLS certificate in x509 format.
   bytes certificate = 1;
@@ -91,4 +93,12 @@ message Config {
      @Critical
   */
   repeated string verify_peer_cert_in_names = 17;
+
+  bytes ech_server_keys = 18;
+
+  string ech_config_list = 19;
+
+  string ech_force_query = 20;
+
+  SocketConfig ech_socket_settings = 21;
 }

transport/internet/tls/ech.go

@@ -0,0 +1,430 @@
+package tls
+
+import (
+	"bytes"
+	"context"
+	"crypto/ecdh"
+	"crypto/rand"
+	"crypto/tls"
+	"encoding/base64"
+	"encoding/binary"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"strings"
+	"sync"
+	"sync/atomic"
+	"time"
+
+	utls "github.com/refraction-networking/utls"
+	"github.com/xtls/xray-core/common/crypto"
+	dns2 "github.com/xtls/xray-core/features/dns"
+	"golang.org/x/net/http2"
+
+	"github.com/miekg/dns"
+	"github.com/xtls/reality"
+	"github.com/xtls/reality/hpke"
+	"github.com/xtls/xray-core/common/errors"
+	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/utils"
+	"github.com/xtls/xray-core/transport/internet"
+	"golang.org/x/crypto/cryptobyte"
+)
+
+func ApplyECH(c *Config, config *tls.Config) error {
+	var ECHConfig []byte
+	var err error
+
+	var nameToQuery string
+	if net.ParseAddress(config.ServerName).Family().IsDomain() {
+		nameToQuery = config.ServerName
+	}
+	var DNSServer string
+
+	// for server
+	if len(c.EchServerKeys) != 0 {
+		KeySets, err := ConvertToGoECHKeys(c.EchServerKeys)
+		if err != nil {
+			return errors.New("Failed to unmarshal ECHKeySetList: ", err)
+		}
+		config.EncryptedClientHelloKeys = KeySets
+	}
+
+	// for client
+	if len(c.EchConfigList) != 0 {
+		ECHForceQuery := c.EchForceQuery
+		switch ECHForceQuery {
+		case "none", "half", "full":
+		case "":
+			ECHForceQuery = "none" // default to none
+		default:
+			panic("Invalid ECHForceQuery: " + c.EchForceQuery)
+		}
+		defer func() {
+			// if failed to get ECHConfig, use an invalid one to make connection fail
+			if err != nil || len(ECHConfig) == 0 {
+				if ECHForceQuery == "full" {
+					ECHConfig = []byte{1, 1, 4, 5, 1, 4}
+				}
+			}
+			config.EncryptedClientHelloConfigList = ECHConfig
+		}()
+		// direct base64 config
+		if strings.Contains(c.EchConfigList, "://") {
+			// query config from dns
+			parts := strings.Split(c.EchConfigList, "+")
+			if len(parts) == 2 {
+				// parse ECH DNS server in format of "example.com+https://1.1.1.1/dns-query"
+				nameToQuery = parts[0]
+				DNSServer = parts[1]
+			} else if len(parts) == 1 {
+				// normal format
+				DNSServer = parts[0]
+			} else {
+				return errors.New("Invalid ECH DNS server format: ", c.EchConfigList)
+			}
+			if nameToQuery == "" {
+				return errors.New("Using DNS for ECH Config needs serverName or use Server format example.com+https://1.1.1.1/dns-query")
+			}
+			ECHConfig, err = QueryRecord(nameToQuery, DNSServer, c.EchForceQuery, c.EchSocketSettings)
+			if err != nil {
+				return errors.New("Failed to query ECH DNS record for domain: ", nameToQuery, " at server: ", DNSServer).Base(err)
+			}
+		} else {
+			ECHConfig, err = base64.StdEncoding.DecodeString(c.EchConfigList)
+			if err != nil {
+				return errors.New("Failed to unmarshal ECHConfigList: ", err)
+			}
+		}
+	}
+
+	return nil
+}
+
+type ECHConfigCache struct {
+	configRecord atomic.Pointer[echConfigRecord]
+	// updateLock is not for preventing concurrent read/write, but for preventing concurrent update
+	UpdateLock sync.Mutex
+}
+
+type echConfigRecord struct {
+	config []byte
+	expire time.Time
+	err    error
+}
+
+var (
+	// The keys for both maps must be generated by ECHCacheKey().
+	GlobalECHConfigCache = utils.NewTypedSyncMap[string, *ECHConfigCache]()
+	clientForECHDOH      = utils.NewTypedSyncMap[string, *http.Client]()
+)
+
+// sockopt can be nil if not specified.
+// if for clientForECHDOH, domain can be empty.
+func ECHCacheKey(server, domain string, sockopt *internet.SocketConfig) string {
+	return server + "|" + domain + "|" + fmt.Sprintf("%p", sockopt)
+}
+
+// Update updates the ECH config for given domain and server.
+// this method is concurrent safe, only one update request will be sent, others get the cache.
+// if isLockedUpdate is true, it will not try to acquire the lock.
+func (c *ECHConfigCache) Update(domain string, server string, isLockedUpdate bool, forceQuery string, sockopt *internet.SocketConfig) ([]byte, error) {
+	if !isLockedUpdate {
+		c.UpdateLock.Lock()
+		defer c.UpdateLock.Unlock()
+	}
+	// Double check cache after acquiring lock
+	configRecord := c.configRecord.Load()
+	if configRecord.expire.After(time.Now()) && configRecord.err == nil {
+		errors.LogDebug(context.Background(), "Cache hit for domain after double check: ", domain)
+		return configRecord.config, configRecord.err
+	}
+	// Query ECH config from DNS server
+	errors.LogDebug(context.Background(), "Trying to query ECH config for domain: ", domain, " with ECH server: ", server)
+	echConfig, ttl, err := dnsQuery(server, domain, sockopt)
+	// if in "full", directly return
+	if err != nil && forceQuery == "full" {
+		return nil, err
+	}
+	if ttl == 0 {
+		ttl = dns2.DefaultTTL
+	}
+	configRecord = &echConfigRecord{
+		config: echConfig,
+		expire: time.Now().Add(time.Duration(ttl) * time.Second),
+		err:    err,
+	}
+	c.configRecord.Store(configRecord)
+	return configRecord.config, configRecord.err
+}
+
+// QueryRecord returns the ECH config for given domain.
+// If the record is not in cache or expired, it will query the DNS server and update the cache.
+func QueryRecord(domain string, server string, forceQuery string, sockopt *internet.SocketConfig) ([]byte, error) {
+	GlobalECHConfigCacheKey := ECHCacheKey(server, domain, sockopt)
+	echConfigCache, ok := GlobalECHConfigCache.Load(GlobalECHConfigCacheKey)
+	if !ok {
+		echConfigCache = &ECHConfigCache{}
+		echConfigCache.configRecord.Store(&echConfigRecord{})
+		echConfigCache, _ = GlobalECHConfigCache.LoadOrStore(GlobalECHConfigCacheKey, echConfigCache)
+	}
+	configRecord := echConfigCache.configRecord.Load()
+	if configRecord.expire.After(time.Now()) && (configRecord.err == nil || forceQuery == "none") {
+		errors.LogDebug(context.Background(), "Cache hit for domain: ", domain)
+		return configRecord.config, configRecord.err
+	}
+
+	// If expire is zero value, it means we are in initial state, wait for the query to finish
+	// otherwise return old value immediately and update in a goroutine
+	// but if the cache is too old, wait for update
+	if configRecord.expire == (time.Time{}) || configRecord.expire.Add(time.Hour*6).Before(time.Now()) {
+		return echConfigCache.Update(domain, server, false, forceQuery, sockopt)
+	} else {
+		// If someone already acquired the lock, it means it is updating, do not start another update goroutine
+		if echConfigCache.UpdateLock.TryLock() {
+			go func() {
+				defer echConfigCache.UpdateLock.Unlock()
+				echConfigCache.Update(domain, server, true, forceQuery, sockopt)
+			}()
+		}
+		return configRecord.config, configRecord.err
+	}
+}
+
+// dnsQuery is the real func for sending type65 query for given domain to given DNS server.
+// return ECH config, TTL and error
+func dnsQuery(server string, domain string, sockopt *internet.SocketConfig) ([]byte, uint32, error) {
+	m := new(dns.Msg)
+	var dnsResolve []byte
+	m.SetQuestion(dns.Fqdn(domain), dns.TypeHTTPS)
+	// for DOH server
+	if strings.HasPrefix(server, "https://") || strings.HasPrefix(server, "h2c://") {
+		h2c := strings.HasPrefix(server, "h2c://")
+		m.SetEdns0(4096, false) // 4096 is the buffer size, false means no DNSSEC
+		padding := &dns.EDNS0_PADDING{Padding: make([]byte, int(crypto.RandBetween(100, 300)))}
+		if opt := m.IsEdns0(); opt != nil {
+			opt.Option = append(opt.Option, padding)
+		}
+		// always 0 in DOH
+		m.Id = 0
+		msg, err := m.Pack()
+		if err != nil {
+			return nil, 0, err
+		}
+		var client *http.Client
+		serverKey := ECHCacheKey(server, "", sockopt)
+		if client, _ = clientForECHDOH.Load(serverKey); client == nil {
+			// All traffic sent by core should via xray's internet.DialSystem
+			// This involves the behavior of some Android VPN GUI clients
+			tr := &http2.Transport{
+				IdleConnTimeout: net.ConnIdleTimeout,
+				ReadIdleTimeout: net.ChromeH2KeepAlivePeriod,
+				DialTLSContext: func(ctx context.Context, network, addr string, cfg *tls.Config) (net.Conn, error) {
+					dest, err := net.ParseDestination(network + ":" + addr)
+					if err != nil {
+						return nil, err
+					}
+					var conn net.Conn
+
+					conn, err = internet.DialSystem(ctx, dest, sockopt)
+					if err != nil {
+						return nil, err
+					}
+
+					if !h2c {
+						u, err := url.Parse(server)
+						if err != nil {
+							return nil, err
+						}
+						conn = utls.UClient(conn, &utls.Config{ServerName: u.Hostname()}, utls.HelloChrome_Auto)
+						if err := conn.(*utls.UConn).HandshakeContext(ctx); err != nil {
+							return nil, err
+						}
+					}
+					return conn, nil
+				},
+			}
+			c := &http.Client{
+				Timeout:   5 * time.Second,
+				Transport: tr,
+			}
+			client, _ = clientForECHDOH.LoadOrStore(serverKey, c)
+		}
+		req, err := http.NewRequest("POST", server, bytes.NewReader(msg))
+		if err != nil {
+			return nil, 0, err
+		}
+		req.Header.Set("Accept", "application/dns-message")
+		req.Header.Set("Content-Type", "application/dns-message")
+		req.Header.Set("X-Padding", strings.Repeat("X", int(crypto.RandBetween(100, 1000))))
+		resp, err := client.Do(req)
+		if err != nil {
+			return nil, 0, err
+		}
+		defer resp.Body.Close()
+		respBody, err := io.ReadAll(resp.Body)
+		if err != nil {
+			return nil, 0, err
+		}
+		if resp.StatusCode != http.StatusOK {
+			return nil, 0, errors.New("query failed with response code:", resp.StatusCode)
+		}
+		dnsResolve = respBody
+	} else if strings.HasPrefix(server, "udp://") { // for classic udp dns server
+		udpServerAddr := server[len("udp://"):]
+		// default port 53 if not specified
+		if !strings.Contains(udpServerAddr, ":") {
+			udpServerAddr = udpServerAddr + ":53"
+		}
+		dest, err := net.ParseDestination("udp" + ":" + udpServerAddr)
+		if err != nil {
+			return nil, 0, errors.New("failed to parse udp dns server ", udpServerAddr, " for ECH: ", err)
+		}
+		dnsTimeoutCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+		defer cancel()
+		// use xray's internet.DialSystem as mentioned above
+		conn, err := internet.DialSystem(dnsTimeoutCtx, dest, sockopt)
+		if err != nil {
+			return nil, 0, err
+		}
+		defer func() {
+			err := conn.Close()
+			if err != nil {
+				errors.LogDebug(context.Background(), "Failed to close connection: ", err)
+			}
+		}()
+		msg, err := m.Pack()
+		if err != nil {
+			return nil, 0, err
+		}
+		conn.Write(msg)
+		udpResponse := make([]byte, 512)
+		conn.SetReadDeadline(time.Now().Add(5 * time.Second))
+		_, err = conn.Read(udpResponse)
+		if err != nil {
+			return nil, 0, err
+		}
+		dnsResolve = udpResponse
+	}
+	respMsg := new(dns.Msg)
+	err := respMsg.Unpack(dnsResolve)
+	if err != nil {
+		return nil, 0, errors.New("failed to unpack dns response for ECH: ", err)
+	}
+	if len(respMsg.Answer) > 0 {
+		for _, answer := range respMsg.Answer {
+			if https, ok := answer.(*dns.HTTPS); ok && https.Hdr.Name == dns.Fqdn(domain) {
+				for _, v := range https.Value {
+					if echConfig, ok := v.(*dns.SVCBECHConfig); ok {
+						errors.LogDebug(context.Background(), "Get ECH config:", echConfig.String(), " TTL:", respMsg.Answer[0].Header().Ttl)
+						return echConfig.ECH, answer.Header().Ttl, nil
+					}
+				}
+			}
+		}
+	}
+	// empty is valid, means no ECH config found
+	return nil, dns2.DefaultTTL, nil
+}
+
+// reference github.com/OmarTariq612/goech
+func MarshalBinary(ech reality.EchConfig) ([]byte, error) {
+	var b cryptobyte.Builder
+	b.AddUint16(ech.Version)
+	b.AddUint16LengthPrefixed(func(child *cryptobyte.Builder) {
+		child.AddUint8(ech.ConfigID)
+		child.AddUint16(ech.KemID)
+		child.AddUint16(uint16(len(ech.PublicKey)))
+		child.AddBytes(ech.PublicKey)
+		child.AddUint16LengthPrefixed(func(child *cryptobyte.Builder) {
+			for _, cipherSuite := range ech.SymmetricCipherSuite {
+				child.AddUint16(cipherSuite.KDFID)
+				child.AddUint16(cipherSuite.AEADID)
+			}
+		})
+		child.AddUint8(ech.MaxNameLength)
+		child.AddUint8(uint8(len(ech.PublicName)))
+		child.AddBytes(ech.PublicName)
+		child.AddUint16LengthPrefixed(func(child *cryptobyte.Builder) {
+			for _, extention := range ech.Extensions {
+				child.AddUint16(extention.Type)
+				child.AddBytes(extention.Data)
+			}
+		})
+	})
+	return b.Bytes()
+}
+
+var ErrInvalidLen = errors.New("goech: invalid length")
+
+func ConvertToGoECHKeys(data []byte) ([]tls.EncryptedClientHelloKey, error) {
+	var keys []tls.EncryptedClientHelloKey
+	s := cryptobyte.String(data)
+	for !s.Empty() {
+		if len(s) < 2 {
+			return keys, ErrInvalidLen
+		}
+		keyLength := int(binary.BigEndian.Uint16(s[:2]))
+		if len(s) < keyLength+4 {
+			return keys, ErrInvalidLen
+		}
+		configLength := int(binary.BigEndian.Uint16(s[keyLength+2 : keyLength+4]))
+		if len(s) < 2+keyLength+2+configLength {
+			return keys, ErrInvalidLen
+		}
+		child := cryptobyte.String(s[:2+keyLength+2+configLength])
+		var (
+			sk, config cryptobyte.String
+		)
+		if !child.ReadUint16LengthPrefixed(&sk) || !child.ReadUint16LengthPrefixed(&config) || !child.Empty() {
+			return keys, ErrInvalidLen
+		}
+		if !s.Skip(2 + keyLength + 2 + configLength) {
+			return keys, ErrInvalidLen
+		}
+		keys = append(keys, tls.EncryptedClientHelloKey{
+			Config:     config,
+			PrivateKey: sk,
+		})
+	}
+	return keys, nil
+}
+
+const ExtensionEncryptedClientHello = 0xfe0d
+const KDF_HKDF_SHA384 = 0x0002
+const KDF_HKDF_SHA512 = 0x0003
+
+func GenerateECHKeySet(configID uint8, domain string, kem uint16) (reality.EchConfig, []byte, error) {
+	config := reality.EchConfig{
+		Version:    ExtensionEncryptedClientHello,
+		ConfigID:   configID,
+		PublicName: []byte(domain),
+		KemID:      kem,
+		SymmetricCipherSuite: []reality.EchCipher{
+			{KDFID: hpke.KDF_HKDF_SHA256, AEADID: hpke.AEAD_AES_128_GCM},
+			{KDFID: hpke.KDF_HKDF_SHA256, AEADID: hpke.AEAD_AES_256_GCM},
+			{KDFID: hpke.KDF_HKDF_SHA256, AEADID: hpke.AEAD_ChaCha20Poly1305},
+			{KDFID: KDF_HKDF_SHA384, AEADID: hpke.AEAD_AES_128_GCM},
+			{KDFID: KDF_HKDF_SHA384, AEADID: hpke.AEAD_AES_256_GCM},
+			{KDFID: KDF_HKDF_SHA384, AEADID: hpke.AEAD_ChaCha20Poly1305},
+			{KDFID: KDF_HKDF_SHA512, AEADID: hpke.AEAD_AES_128_GCM},
+			{KDFID: KDF_HKDF_SHA512, AEADID: hpke.AEAD_AES_256_GCM},
+			{KDFID: KDF_HKDF_SHA512, AEADID: hpke.AEAD_ChaCha20Poly1305},
+		},
+		MaxNameLength: 0,
+		Extensions:    nil,
+	}
+	// if kem == hpke.DHKEM_X25519_HKDF_SHA256 {
+	curve := ecdh.X25519()
+	priv := make([]byte, 32) //x25519
+	_, err := io.ReadFull(rand.Reader, priv)
+	if err != nil {
+		return config, nil, err
+	}
+	privKey, _ := curve.NewPrivateKey(priv)
+	config.PublicKey = privKey.PublicKey().Bytes()
+	return config, priv, nil
+	// }
+	// TODO: add mlkem768 (former kyber768 draft00). The golang mlkem private key is 64 bytes seed?
+}

transport/internet/tls/ech_test.go

@@ -0,0 +1,79 @@
+package tls
+
+import (
+	"io"
+	"net/http"
+	"strings"
+	"sync"
+	"testing"
+
+	"github.com/xtls/xray-core/common"
+)
+
+func TestECHDial(t *testing.T) {
+	config := &Config{
+		ServerName:    "cloudflare.com",
+		EchConfigList: "encryptedsni.com+udp://1.1.1.1",
+	}
+	// test concurrent Dial(to test cache problem)
+	wg := sync.WaitGroup{}
+	for range 10 {
+		wg.Add(1)
+		go func() {
+			TLSConfig := config.GetTLSConfig()
+			TLSConfig.NextProtos = []string{"http/1.1"}
+			client := &http.Client{
+				Transport: &http.Transport{
+					TLSClientConfig: TLSConfig,
+				},
+			}
+			resp, err := client.Get("https://cloudflare.com/cdn-cgi/trace")
+			common.Must(err)
+			defer resp.Body.Close()
+			body, err := io.ReadAll(resp.Body)
+			common.Must(err)
+			if !strings.Contains(string(body), "sni=encrypted") {
+				t.Error("ECH Dial success but SNI is not encrypted")
+			}
+			wg.Done()
+		}()
+	}
+	wg.Wait()
+	// check cache
+	echConfigCache, ok := GlobalECHConfigCache.Load(ECHCacheKey("udp://1.1.1.1", "encryptedsni.com", nil))
+	if !ok {
+		t.Error("ECH config cache not found")
+
+	}
+	ok = echConfigCache.UpdateLock.TryLock()
+	if !ok {
+		t.Error("ECH config cache dead lock detected")
+	}
+	echConfigCache.UpdateLock.Unlock()
+	configRecord := echConfigCache.configRecord.Load()
+	if configRecord == nil {
+		t.Error("ECH config record not found in cache")
+	}
+}
+
+func TestECHDialFail(t *testing.T) {
+	config := &Config{
+		ServerName:    "cloudflare.com",
+		EchConfigList: "udp://127.0.0.1",
+		EchForceQuery: "half",
+	}
+	config.GetTLSConfig()
+	// check cache
+	echConfigCache, ok := GlobalECHConfigCache.Load(ECHCacheKey("udp://127.0.0.1", "cloudflare.com", nil))
+	if !ok {
+		t.Error("ECH config cache not found")
+	}
+	configRecord := echConfigCache.configRecord.Load()
+	if configRecord == nil {
+		t.Error("ECH config record not found in cache")
+		return
+	}
+	if configRecord.err == nil {
+		t.Error("unexpected nil error in ECH config record")
+	}
+}

transport/internet/tls/tls.go

@@ -128,12 +128,13 @@ func UClient(c net.Conn, config *tls.Config, fingerprint *utls.ClientHelloID) ne
 
 func copyConfig(c *tls.Config) *utls.Config {
 	return &utls.Config{
-		Rand:                  c.Rand,
-		RootCAs:               c.RootCAs,
-		ServerName:            c.ServerName,
-		InsecureSkipVerify:    c.InsecureSkipVerify,
-		VerifyPeerCertificate: c.VerifyPeerCertificate,
-		KeyLogWriter:          c.KeyLogWriter,
+		Rand:                           c.Rand,
+		RootCAs:                        c.RootCAs,
+		ServerName:                     c.ServerName,
+		InsecureSkipVerify:             c.InsecureSkipVerify,
+		VerifyPeerCertificate:          c.VerifyPeerCertificate,
+		KeyLogWriter:                   c.KeyLogWriter,
+		EncryptedClientHelloConfigList: c.EncryptedClientHelloConfigList,
 	}
 }
 

transport/internet/udp/dispatcher.go

@@ -70,11 +70,10 @@ func (v *Dispatcher) getInboundRay(ctx context.Context, dest net.Destination) (*
 	removeRay := func() {
 		v.Lock()
 		defer v.Unlock()
+		// sometimes the entry is already removed by others, don't close again
 		if entry == v.conn {
 			cancel()
 			v.removeRay()
-		} else {
-			errors.LogError(ctx, "removeRay trying to remove a conn that not belongs to it, canceling.")
 		}
 	}
 	timer := signal.CancelAfterInactivity(ctx, removeRay, time.Minute)

transport/internet/udp/hub.go

@@ -40,6 +40,14 @@ func ListenUDP(ctx context.Context, address net.Address, port net.Port, streamSe
 		opt(hub)
 	}
 
+	if address.Family().IsDomain() && address.Domain() == "localhost" {
+		address = net.LocalHostIP
+	}
+
+	if address.Family().IsDomain() {
+		return nil, errors.New("domain address is not allowed for listening: ", address.Domain())
+	}
+
 	var sockopt *internet.SocketConfig
 	if streamSettings != nil {
 		sockopt = streamSettings.SocketSettings