XHTTP: Fix packet up writer

Bumps [golang.org/x/net](https://github.com/golang/net) from 0.42.0 to 0.43.0.
- [Commits](https://github.com/golang/net/compare/v0.42.0...v0.43.0)

---
updated-dependencies:
- dependency-name: golang.org/x/net
  dependency-version: 0.43.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.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

@@ -6,9 +6,13 @@
 
 ## 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
 
@@ -88,25 +92,28 @@
   - [SaeedDev94/Xray](https://github.com/SaeedDev94/Xray)
   - [SimpleXray](https://github.com/lhear/SimpleXray)
   - [AnyPortal](https://github.com/AnyPortal/AnyPortal)
-- iOS & macOS arm64
-  - [Happ](https://apps.apple.com/app/happ-proxy-utility/id6504287215)
+- iOS & macOS arm64 & tvOS
+  - [Happ](https://apps.apple.com/app/happ-proxy-utility/id6504287215) ([tvOS](https://apps.apple.com/us/app/happ-proxy-utility-for-tv/id6748297274))
   - [Streisand](https://apps.apple.com/app/streisand/id6450534064)
   - [OneXray](https://github.com/OneXray/OneXray)
 - macOS arm64 & x64
+  - [Happ](https://apps.apple.com/app/happ-proxy-utility/id6504287215)
   - [V2rayU](https://github.com/yanue/V2rayU)
   - [V2RayXS](https://github.com/tzmax/V2RayXS)
   - [Furious](https://github.com/LorenEteval/Furious)
   - [OneXray](https://github.com/OneXray/OneXray)
+  - [GoXRay](https://github.com/goxray/desktop)
   - [AnyPortal](https://github.com/AnyPortal/AnyPortal)
 - Linux
   - [v2rayA](https://github.com/v2rayA/v2rayA)
   - [Furious](https://github.com/LorenEteval/Furious)
   - [GorzRay](https://github.com/ketetefid/GorzRay)
+  - [GoXRay](https://github.com/goxray/desktop)
   - [AnyPortal](https://github.com/AnyPortal/AnyPortal)
 
 ## Others that support VLESS, XTLS, REALITY, XUDP, PLUX...
 
-- iOS & macOS arm64
+- iOS & macOS arm64 & tvOS
   - [Shadowrocket](https://apps.apple.com/app/shadowrocket/id932747118)
   - [Loon](https://apps.apple.com/us/app/loon/id1373567447)
 - Xray Tools

app/dns/dns.go

@@ -204,7 +204,12 @@ func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, uint32, er
 	}
 
 	// Static host lookup
-	switch addrs := s.hosts.Lookup(domain, option); {
+	switch addrs, err := s.hosts.Lookup(domain, option); {
+	case err != nil:
+		if go_errors.Is(err, dns.ErrEmptyResponse) {
+			return nil, 0, dns.ErrEmptyResponse
+		}
+		return nil, 0, errors.New("returning nil for domain ", domain).Base(err)
 	case addrs == nil: // Domain not recorded in static host
 		break
 	case len(addrs) == 0: // Domain recorded, but no valid IP returned (e.g. IPv4 address with only IPv6 enabled)

app/dns/hosts.go

@@ -2,6 +2,8 @@ package dns
 
 import (
 	"context"
+	"strconv"
+
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/strmatcher"
@@ -31,7 +33,15 @@ func NewStaticHosts(hosts []*Config_HostMapping) (*StaticHosts, error) {
 		ips := make([]net.Address, 0, len(mapping.Ip)+1)
 		switch {
 		case len(mapping.ProxiedDomain) > 0:
-			ips = append(ips, net.DomainAddress(mapping.ProxiedDomain))
+			if mapping.ProxiedDomain[0] == '#' {
+				rcode, err := strconv.Atoi(mapping.ProxiedDomain[1:])
+				if err != nil {
+					return nil, err
+				}
+				ips = append(ips, dns.RCodeError(rcode))
+			} else {
+				ips = append(ips, net.DomainAddress(mapping.ProxiedDomain))
+			}
 		case len(mapping.Ip) > 0:
 			for _, ip := range mapping.Ip {
 				addr := net.IPAddress(ip)
@@ -58,38 +68,51 @@ func filterIP(ips []net.Address, option dns.IPOption) []net.Address {
 	return filtered
 }
 
-func (h *StaticHosts) lookupInternal(domain string) []net.Address {
+func (h *StaticHosts) lookupInternal(domain string) ([]net.Address, error) {
 	ips := make([]net.Address, 0)
 	found := false
 	for _, id := range h.matchers.Match(domain) {
+		for _, v := range h.ips[id] {
+			if err, ok := v.(dns.RCodeError); ok {
+				if uint16(err) == 0 {
+					return nil, dns.ErrEmptyResponse
+				}
+				return nil, err
+			}
+		}
 		ips = append(ips, h.ips[id]...)
 		found = true
 	}
 	if !found {
-		return nil
+		return nil, nil
 	}
-	return ips
+	return ips, nil
 }
 
-func (h *StaticHosts) lookup(domain string, option dns.IPOption, maxDepth int) []net.Address {
-	switch addrs := h.lookupInternal(domain); {
+func (h *StaticHosts) lookup(domain string, option dns.IPOption, maxDepth int) ([]net.Address, error) {
+	switch addrs, err := h.lookupInternal(domain); {
+	case err != nil:
+		return nil, err
 	case len(addrs) == 0: // Not recorded in static hosts, return nil
-		return addrs
+		return addrs, nil
 	case len(addrs) == 1 && addrs[0].Family().IsDomain(): // Try to unwrap domain
 		errors.LogDebug(context.Background(), "found replaced domain: ", domain, " -> ", addrs[0].Domain(), ". Try to unwrap it")
 		if maxDepth > 0 {
-			unwrapped := h.lookup(addrs[0].Domain(), option, maxDepth-1)
+			unwrapped, err := h.lookup(addrs[0].Domain(), option, maxDepth-1)
+			if err != nil {
+				return nil, err
+			}
 			if unwrapped != nil {
-				return unwrapped
+				return unwrapped, nil
 			}
 		}
-		return addrs
+		return addrs, nil
 	default: // IP record found, return a non-nil IP array
-		return filterIP(addrs, option)
+		return filterIP(addrs, option), nil
 	}
 }
 
 // Lookup returns IP addresses or proxied domain for the given domain, if exists in this StaticHosts.
-func (h *StaticHosts) Lookup(domain string, option dns.IPOption) []net.Address {
+func (h *StaticHosts) Lookup(domain string, option dns.IPOption) ([]net.Address, error) {
 	return h.lookup(domain, option, 5)
 }

app/dns/hosts_test.go

@@ -12,6 +12,11 @@ import (
 
 func TestStaticHosts(t *testing.T) {
 	pb := []*Config_HostMapping{
+		{
+			Type:          DomainMatchingType_Subdomain,
+			Domain:        "lan",
+			ProxiedDomain: "#3",
+		},
 		{
 			Type:   DomainMatchingType_Full,
 			Domain: "example.com",
@@ -54,7 +59,14 @@ func TestStaticHosts(t *testing.T) {
 	common.Must(err)
 
 	{
-		ips := hosts.Lookup("example.com", dns.IPOption{
+		_, err := hosts.Lookup("example.com.lan", dns.IPOption{})
+		if dns.RCodeFromError(err) != 3 {
+			t.Error(err)
+		}
+	}
+
+	{
+		ips, _ := hosts.Lookup("example.com", dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 		})
@@ -67,7 +79,7 @@ func TestStaticHosts(t *testing.T) {
 	}
 
 	{
-		domain := hosts.Lookup("proxy.xray.com", dns.IPOption{
+		domain, _ := hosts.Lookup("proxy.xray.com", dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: false,
 		})
@@ -80,7 +92,7 @@ func TestStaticHosts(t *testing.T) {
 	}
 
 	{
-		domain := hosts.Lookup("proxy2.xray.com", dns.IPOption{
+		domain, _ := hosts.Lookup("proxy2.xray.com", dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: false,
 		})
@@ -93,7 +105,7 @@ func TestStaticHosts(t *testing.T) {
 	}
 
 	{
-		ips := hosts.Lookup("www.example.cn", dns.IPOption{
+		ips, _ := hosts.Lookup("www.example.cn", dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 		})
@@ -106,7 +118,7 @@ func TestStaticHosts(t *testing.T) {
 	}
 
 	{
-		ips := hosts.Lookup("baidu.com", dns.IPOption{
+		ips, _ := hosts.Lookup("baidu.com", dns.IPOption{
 			IPv4Enable: false,
 			IPv6Enable: true,
 		})

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,
@@ -161,6 +162,7 @@ type udpConn struct {
 	uplink           stats.Counter
 	downlink         stats.Counter
 	inactive         bool
+	cancel           context.CancelFunc
 }
 
 func (c *udpConn) setInactive() {
@@ -203,6 +205,9 @@ func (c *udpConn) Write(buf []byte) (int, error) {
 }
 
 func (c *udpConn) Close() error {
+	if c.cancel != nil {
+		c.cancel()
+	}
 	common.Must(c.done.Close())
 	common.Must(common.Close(c.writer))
 	return nil
@@ -259,6 +264,7 @@ func (w *udpWorker) getConnection(id connID) (*udpConn, bool) {
 	defer w.Unlock()
 
 	if conn, found := w.activeConn[id]; found && !conn.done.Done() {
+		conn.updateActivity()
 		return conn, true
 	}
 
@@ -306,7 +312,8 @@ func (w *udpWorker) callback(b *buf.Buffer, source net.Destination, originalDest
 		common.Must(w.checker.Start())
 
 		go func() {
-			ctx := w.ctx
+			ctx, cancel := context.WithCancel(w.ctx)
+			conn.cancel = cancel
 			sid := session.NewID()
 			ctx = c.ContextWithID(ctx, sid)
 
@@ -315,8 +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,
 			})
@@ -466,6 +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/reverse/config.go

@@ -9,6 +9,7 @@ import (
 
 func (c *Control) FillInRandom() {
 	randomLength := dice.Roll(64)
+	randomLength++
 	c.Random = make([]byte, randomLength)
 	io.ReadFull(rand.Reader, c.Random)
 }

app/reverse/portal.go

@@ -170,7 +170,7 @@ func (p *StaticMuxPicker) PickAvailable() (*mux.ClientWorker, error) {
 		if w.draining {
 			continue
 		}
-		if w.client.Closed() {
+		if w.IsFull() {
 			continue
 		}
 		if w.client.ActiveConnections() < minConn {
@@ -211,6 +211,7 @@ type PortalWorker struct {
 	writer   buf.Writer
 	reader   buf.Reader
 	draining bool
+	counter  uint32
 }
 
 func NewPortalWorker(client *mux.ClientWorker) (*PortalWorker, error) {
@@ -244,7 +245,7 @@ func NewPortalWorker(client *mux.ClientWorker) (*PortalWorker, error) {
 }
 
 func (w *PortalWorker) heartbeat() error {
-	if w.client.Closed() {
+	if w.Closed() {
 		return errors.New("client worker stopped")
 	}
 
@@ -260,16 +261,21 @@ func (w *PortalWorker) heartbeat() error {
 		msg.State = Control_DRAIN
 
 		defer func() {
+			w.client.GetTimer().Reset(time.Second * 16)
 			common.Close(w.writer)
 			common.Interrupt(w.reader)
 			w.writer = nil
 		}()
 	}
 
-	b, err := proto.Marshal(msg)
-	common.Must(err)
-	mb := buf.MergeBytes(nil, b)
-	return w.writer.WriteMultiBuffer(mb)
+	w.counter = (w.counter + 1) % 5
+	if w.draining || w.counter == 1 {
+		b, err := proto.Marshal(msg)
+		common.Must(err)
+		mb := buf.MergeBytes(nil, b)
+		return w.writer.WriteMultiBuffer(mb)
+	}
+	return nil
 }
 
 func (w *PortalWorker) IsFull() bool {

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,
 	0x6e, 0x64, 0x54, 0x61, 0x67, 0x18, 0x0c, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0b, 0x4f, 0x75, 0x74,
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 }
 
 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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@@ -1109,67 +1125,75 @@ var file_app_router_config_proto_rawDesc = []byte{
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+	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/buf/buffer.go

@@ -13,6 +13,8 @@ const (
 	Size = 8192
 )
 
+var ErrBufferFull = errors.New("buffer is full")
+
 var zero = [Size * 10]byte{0}
 
 var pool = bytespool.GetPool(Size)
@@ -258,13 +260,16 @@ func (b *Buffer) IsFull() bool {
 func (b *Buffer) Write(data []byte) (int, error) {
 	nBytes := copy(b.v[b.end:], data)
 	b.end += int32(nBytes)
+	if nBytes < len(data) {
+		return nBytes, ErrBufferFull
+	}
 	return nBytes, nil
 }
 
 // WriteByte writes a single byte into the buffer.
 func (b *Buffer) WriteByte(v byte) error {
 	if b.IsFull() {
-		return errors.New("buffer full")
+		return ErrBufferFull
 	}
 	b.v[b.end] = v
 	b.end++

common/mux/client.go

@@ -173,6 +173,7 @@ type ClientWorker struct {
 	sessionManager *SessionManager
 	link           transport.Link
 	done           *done.Instance
+	timer          *time.Ticker
 	strategy       ClientStrategy
 }
 
@@ -187,6 +188,7 @@ func NewClientWorker(stream transport.Link, s ClientStrategy) (*ClientWorker, er
 		sessionManager: NewSessionManager(),
 		link:           stream,
 		done:           done.New(),
+		timer:          time.NewTicker(time.Second * 16),
 		strategy:       s,
 	}
 
@@ -209,9 +211,12 @@ func (m *ClientWorker) Closed() bool {
 	return m.done.Done()
 }
 
+func (m *ClientWorker) GetTimer() *time.Ticker {
+	return m.timer
+}
+
 func (m *ClientWorker) monitor() {
-	timer := time.NewTicker(time.Second * 16)
-	defer timer.Stop()
+	defer m.timer.Stop()
 
 	for {
 		select {
@@ -220,7 +225,7 @@ func (m *ClientWorker) monitor() {
 			common.Close(m.link.Writer)
 			common.Interrupt(m.link.Reader)
 			return
-		case <-timer.C:
+		case <-m.timer.C:
 			size := m.sessionManager.Size()
 			if size == 0 && m.sessionManager.CloseIfNoSession() {
 				common.Must(m.done.Close())
@@ -276,6 +281,8 @@ func (m *ClientWorker) IsClosing() bool {
 	return false
 }
 
+// IsFull returns true if this ClientWorker is unable to accept more connections.
+// it might be because it is closing, or the number of connections has reached the limit.
 func (m *ClientWorker) IsFull() bool {
 	if m.IsClosing() || m.Closed() {
 		return true
@@ -289,12 +296,12 @@ func (m *ClientWorker) IsFull() bool {
 }
 
 func (m *ClientWorker) Dispatch(ctx context.Context, link *transport.Link) bool {
-	if m.IsFull() || m.Closed() {
+	if m.IsFull() {
 		return false
 	}
 
 	sm := m.sessionManager
-	s := sm.Allocate()
+	s := sm.Allocate(&m.strategy)
 	if s == nil {
 		return false
 	}

common/mux/server.go

@@ -201,11 +201,12 @@ func (w *ServerWorker) handleStatusNew(ctx context.Context, meta *FrameMetadata,
 			transferType: protocol.TransferTypePacket,
 			XUDP:         x,
 		}
-		go handle(ctx, x.Mux, w.link.Writer)
 		x.Status = Active
 		if !w.sessionManager.Add(x.Mux) {
 			x.Mux.Close(false)
+			return errors.New("failed to add new session")
 		}
+		go handle(ctx, x.Mux, w.link.Writer)
 		return nil
 	}
 
@@ -226,18 +227,23 @@ func (w *ServerWorker) handleStatusNew(ctx context.Context, meta *FrameMetadata,
 	if meta.Target.Network == net.Network_UDP {
 		s.transferType = protocol.TransferTypePacket
 	}
-	w.sessionManager.Add(s)
+	if !w.sessionManager.Add(s) {
+		s.Close(false)
+		return errors.New("failed to add new session")
+	}
 	go handle(ctx, s, w.link.Writer)
 	if !meta.Option.Has(OptionData) {
 		return nil
 	}
 
 	rr := s.NewReader(reader, &meta.Target)
-	if err := buf.Copy(rr, s.output); err != nil {
-		buf.Copy(rr, buf.Discard)
-		return s.Close(false)
+	err = buf.Copy(rr, s.output)
+
+	if err != nil && buf.IsWriteError(err) {
+		s.Close(false)
+		return buf.Copy(rr, buf.Discard)
 	}
-	return nil
+	return err
 }
 
 func (w *ServerWorker) handleStatusKeep(meta *FrameMetadata, reader *buf.BufferedReader) error {
@@ -304,10 +310,11 @@ func (w *ServerWorker) handleFrame(ctx context.Context, reader *buf.BufferedRead
 }
 
 func (w *ServerWorker) run(ctx context.Context) {
-	input := w.link.Reader
-	reader := &buf.BufferedReader{Reader: input}
+	reader := &buf.BufferedReader{Reader: w.link.Reader}
 
 	defer w.sessionManager.Close()
+	defer common.Close(w.link.Writer)
+	defer common.Interrupt(w.link.Reader)
 
 	for {
 		select {
@@ -318,7 +325,6 @@ func (w *ServerWorker) run(ctx context.Context) {
 			if err != nil {
 				if errors.Cause(err) != io.EOF {
 					errors.LogInfoInner(ctx, err, "unexpected EOF")
-					common.Interrupt(input)
 				}
 				return
 			}

common/mux/session.go

@@ -50,11 +50,14 @@ func (m *SessionManager) Count() int {
 	return int(m.count)
 }
 
-func (m *SessionManager) Allocate() *Session {
+func (m *SessionManager) Allocate(Strategy *ClientStrategy) *Session {
 	m.Lock()
 	defer m.Unlock()
+	
+	MaxConcurrency := int(Strategy.MaxConcurrency)
+	MaxConnection := uint16(Strategy.MaxConnection)
 
-	if m.closed {
+	if m.closed || (MaxConcurrency > 0 && len(m.sessions) >= MaxConcurrency) || (MaxConnection > 0 && m.count >= MaxConnection) {
 		return nil
 	}
 

common/mux/session_test.go

@@ -9,7 +9,7 @@ import (
 func TestSessionManagerAdd(t *testing.T) {
 	m := NewSessionManager()
 
-	s := m.Allocate()
+	s := m.Allocate(&ClientStrategy{})
 	if s.ID != 1 {
 		t.Error("id: ", s.ID)
 	}
@@ -17,7 +17,7 @@ func TestSessionManagerAdd(t *testing.T) {
 		t.Error("size: ", m.Size())
 	}
 
-	s = m.Allocate()
+	s = m.Allocate(&ClientStrategy{})
 	if s.ID != 2 {
 		t.Error("id: ", s.ID)
 	}
@@ -39,7 +39,7 @@ func TestSessionManagerAdd(t *testing.T) {
 
 func TestSessionManagerClose(t *testing.T) {
 	m := NewSessionManager()
-	s := m.Allocate()
+	s := m.Allocate(&ClientStrategy{})
 
 	if m.CloseIfNoSession() {
 		t.Error("able to close")

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.

common/utils/typed_sync_map.go

@@ -0,0 +1,112 @@
+package utils
+
+import (
+	"sync"
+)
+
+// TypedSyncMap is a wrapper of sync.Map that provides type-safe for keys and values.
+// No need to use type assertions every time, so you can have more time to enjoy other things like GochiUsa
+// If sync.Map methods returned nil, it will return the zero value of the type V.
+type TypedSyncMap[K, V any] struct {
+	syncMap *sync.Map
+}
+
+// NewTypedSyncMap creates a new TypedSyncMap
+// K is key type, V is value type
+// It is recommended to use pointer types for V because sync.Map might return nil
+// If sync.Map methods really returned nil, it will return the zero value of the type V
+func NewTypedSyncMap[K any, V any]() *TypedSyncMap[K, V] {
+	return &TypedSyncMap[K, V]{
+		syncMap: &sync.Map{},
+	}
+}
+
+// Clear deletes all the entries, resulting in an empty Map.
+func (m *TypedSyncMap[K, V]) Clear() {
+	m.syncMap.Clear()
+}
+
+// CompareAndDelete deletes the entry for key if its value is equal to old.
+// The old value must be of a comparable type.
+//
+// If there is no current value for key in the map, CompareAndDelete
+// returns false (even if the old value is the nil interface value).
+func (m *TypedSyncMap[K, V]) CompareAndDelete(key K, old V) (deleted bool) {
+	return m.syncMap.CompareAndDelete(key, old)
+}
+
+// CompareAndSwap swaps the old and new values for key
+// if the value stored in the map is equal to old.
+// The old value must be of a comparable type.
+func (m *TypedSyncMap[K, V]) CompareAndSwap(key K, old V, new V) (swapped bool) {
+	return m.syncMap.CompareAndSwap(key, old, new)
+}
+
+// Delete deletes the value for a key.
+func (m *TypedSyncMap[K, V]) Delete(key K) {
+	m.syncMap.Delete(key)
+}
+
+// Load returns the value stored in the map for a key, or nil if no
+// value is present.
+// The ok result indicates whether value was found in the map.
+func (m *TypedSyncMap[K, V]) Load(key K) (value V, ok bool) {
+	anyValue, ok := m.syncMap.Load(key)
+	// anyValue might be nil
+	if anyValue != nil {
+		value = anyValue.(V)
+	}
+	return value, ok
+}
+
+// LoadAndDelete deletes the value for a key, returning the previous value if any.
+// The loaded result reports whether the key was present.
+func (m *TypedSyncMap[K, V]) LoadAndDelete(key K) (value V, loaded bool) {
+	anyValue, loaded := m.syncMap.LoadAndDelete(key)
+	if anyValue != nil {
+		value = anyValue.(V)
+	}
+	return value, loaded
+}
+
+// LoadOrStore returns the existing value for the key if present.
+// Otherwise, it stores and returns the given value.
+// The loaded result is true if the value was loaded, false if stored.
+func (m *TypedSyncMap[K, V]) LoadOrStore(key K, value V) (actual V, loaded bool) {
+	anyActual, loaded := m.syncMap.LoadOrStore(key, value)
+	if anyActual != nil {
+		actual = anyActual.(V)
+	}
+	return actual, loaded
+}
+
+// Range calls f sequentially for each key and value present in the map.
+// If f returns false, range stops the iteration.
+//
+// Range does not necessarily correspond to any consistent snapshot of the Map's
+// contents: no key will be visited more than once, but if the value for any key
+// is stored or deleted concurrently (including by f), Range may reflect any
+// mapping for that key from any point during the Range call. Range does not
+// block other methods on the receiver; even f itself may call any method on m.
+//
+// Range may be O(N) with the number of elements in the map even if f returns
+// false after a constant number of calls.
+func (m *TypedSyncMap[K, V]) Range(f func(key K, value V) bool) {
+	m.syncMap.Range(func(key, value any) bool {
+		return f(key.(K), value.(V))
+	})
+}
+
+// Store sets the value for a key.
+func (m *TypedSyncMap[K, V]) Store(key K, value V) {
+	m.syncMap.Store(key, value)
+}
+
+// Swap swaps the value for a key and returns the previous value if any. The loaded result reports whether the key was present.
+func (m *TypedSyncMap[K, V]) Swap(key K, value V) (previous V, loaded bool) {
+	anyPrevious, loaded := m.syncMap.Swap(key, value)
+	if anyPrevious != nil {
+		previous = anyPrevious.(V)
+	}
+	return previous, loaded
+}

core/core.go

@@ -18,8 +18,8 @@ import (
 
 var (
 	Version_x byte = 25
-	Version_y byte = 6
-	Version_z byte = 8
+	Version_y byte = 8
+	Version_z byte = 3
 )
 
 var (

features/dns/client.go

@@ -42,6 +42,24 @@ func (e RCodeError) Error() string {
 	return serial.Concat("rcode: ", uint16(e))
 }
 
+func (RCodeError) IP() net.IP {
+	panic("Calling IP() on a RCodeError.")
+}
+
+func (RCodeError) Domain() string {
+	panic("Calling Domain() on a RCodeError.")
+}
+
+func (RCodeError) Family() net.AddressFamily {
+	panic("Calling Family() on a RCodeError.")
+}
+
+func (e RCodeError) String() string {
+	return e.Error()
+}
+
+var _ net.Address = (*RCodeError)(nil)
+
 func RCodeFromError(err error) uint16 {
 	if err == nil {
 		return 0

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

@@ -3,56 +3,56 @@ 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
-	github.com/refraction-networking/utls v1.7.3
+	github.com/refraction-networking/utls v1.8.0
 	github.com/sagernet/sing v0.5.1
 	github.com/sagernet/sing-shadowsocks v0.2.7
 	github.com/seiflotfy/cuckoofilter v0.0.0-20240715131351-a2f2c23f1771
 	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 v0.0.0-20250715055725-05a351a64521
+	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 v1.73.0
-	google.golang.org/protobuf v1.36.6
+	google.golang.org/grpc v1.74.2
+	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
 )
 
 require (
-	github.com/andybalholm/brotli v1.1.0 // indirect
+	github.com/andybalholm/brotli v1.0.6 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/dgryski/go-metro v0.0.0-20211217172704-adc40b04c140 // indirect
+	github.com/dgryski/go-metro v0.0.0-20200812162917-85c65e2d0165 // indirect
 	github.com/google/btree v1.1.2 // indirect
 	github.com/juju/ratelimit v1.0.2 // indirect
-	github.com/klauspost/compress v1.17.8 // indirect
-	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
+	github.com/klauspost/compress v1.17.4 // indirect
+	github.com/klauspost/cpuid/v2 v2.0.12 // indirect
+	github.com/kr/pretty v0.3.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/quic-go/qpack v0.5.1 // indirect
 	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 v0.0.0-20250324211829-b45e905df463 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250528174236-200df99c418a // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,19 +1,17 @@
-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 v1.1.0 h1:eLKJA0d02Lf0mVpIDgYnqXcUn0GqVmEFny3VuID1U3M=
-github.com/andybalholm/brotli v1.1.0/go.mod h1:sms7XGricyQI9K10gOSf56VKKWS4oLer58Q+mhRPtnY=
+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=
 github.com/cloudflare/circl v1.6.1/go.mod h1:uddAzsPgqdMAYatqJ0lsjX1oECcQLIlRpzZh3pJrofs=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dgryski/go-metro v0.0.0-20200812162917-85c65e2d0165 h1:BS21ZUJ/B5X2UVUbczfmdWH7GapPWAhxcMsDnjJTU1E=
 github.com/dgryski/go-metro v0.0.0-20200812162917-85c65e2d0165/go.mod h1:c9O8+fpSOX1DM8cPNSkX/qsBWdkD4yd2dpciOWQjpBw=
-github.com/dgryski/go-metro v0.0.0-20211217172704-adc40b04c140 h1:y7y0Oa6UawqTFPCDw9JG6pdKt4F9pAhHv0B7FMGaGD0=
-github.com/dgryski/go-metro v0.0.0-20211217172704-adc40b04c140/go.mod h1:c9O8+fpSOX1DM8cPNSkX/qsBWdkD4yd2dpciOWQjpBw=
 github.com/ghodss/yaml v1.0.1-0.20220118164431-d8423dcdf344 h1:Arcl6UOIS/kgO2nW3A65HN+7CMjSDP/gofXL4CZt1V4=
 github.com/ghodss/yaml v1.0.1-0.20220118164431-d8423dcdf344/go.mod h1:GIjDIg/heH5DOkXY3YJ/wNhfHsQHoXGjl8G8amsYQ1I=
-github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY=
-github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
+github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
 github.com/golang/mock v1.7.0-rc.1 h1:YojYx61/OLFsiv6Rw1Z96LpldJIy31o+UHmwAUMJ6/U=
@@ -32,28 +30,35 @@ github.com/h12w/go-socks5 v0.0.0-20200522160539-76189e178364 h1:5XxdakFhqd9dnXoA
 github.com/h12w/go-socks5 v0.0.0-20200522160539-76189e178364/go.mod h1:eDJQioIyy4Yn3MVivT7rv/39gAJTrA7lgmYr8EW950c=
 github.com/juju/ratelimit v1.0.2 h1:sRxmtRiajbvrcLQT7S+JbqU0ntsb9W2yhSdNN8tWfaI=
 github.com/juju/ratelimit v1.0.2/go.mod h1:qapgC/Gy+xNh9UxzV13HGGl/6UXNN+ct+vwSgWNm/qk=
-github.com/klauspost/compress v1.17.8 h1:YcnTYrq7MikUT7k0Yb5eceMmALQPYBW/Xltxn0NAMnU=
-github.com/klauspost/compress v1.17.8/go.mod h1:Di0epgTjJY877eYKx5yC51cX2A2Vl2ibi7bDH9ttBbw=
-github.com/klauspost/cpuid/v2 v2.2.7 h1:ZWSB3igEs+d0qvnxR/ZBzXVmxkgt8DdzP6m9pfuVLDM=
-github.com/klauspost/cpuid/v2 v2.2.7/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws=
-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/klauspost/compress v1.17.4 h1:Ej5ixsIri7BrIjBkRZLTo6ghwrEtHFk7ijlczPW4fZ4=
+github.com/klauspost/compress v1.17.4/go.mod h1:/dCuZOvVtNoHsyb+cuJD3itjs3NbnF6KH9zAO4BDxPM=
+github.com/klauspost/cpuid/v2 v2.0.12 h1:p9dKCg8i4gmOxtv35DvrYoWqYzQrvEVdjQ762Y0OqZE=
+github.com/klauspost/cpuid/v2 v2.0.12/go.mod h1:g2LTdtYhdyuGPqyWyv7qRAmj1WBqxuObKfj5c0PQa7c=
+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 v1.1.68 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=
 github.com/phayes/freeport v0.0.0-20180830031419-95f893ade6f2/go.mod h1:iIss55rKnNBTvrwdmkUpLnDpZoAHvWaiq5+iMmen4AE=
 github.com/pires/go-proxyproto v0.8.1 h1:9KEixbdJfhrbtjpz/ZwCdWDD2Xem0NZ38qMYaASJgp0=
 github.com/pires/go-proxyproto v0.8.1/go.mod h1:ZKAAyp3cgy5Y5Mo4n9AlScrkCZwUy0g3Jf+slqQVcuU=
+github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/quic-go/qpack v0.5.1 h1:giqksBPnT/HDtZ6VhtFKgoLOWmlyo9Ei6u9PqzIMbhI=
 github.com/quic-go/qpack v0.5.1/go.mod h1:+PC4XFrEskIVkcLzpEkbLqq1uCoxPhQuvK5rH1ZgaEg=
 github.com/quic-go/quic-go v0.54.0 h1:6s1YB9QotYI6Ospeiguknbp2Znb/jZYjZLRXn9kMQBg=
 github.com/quic-go/quic-go v0.54.0/go.mod h1:e68ZEaCdyviluZmy44P6Iey98v/Wfz6HCjQEm+l8zTY=
-github.com/refraction-networking/utls v1.7.3 h1:L0WRhHY7Oq1T0zkdzVZMR6zWZv+sXbHB9zcuvsAEqCo=
-github.com/refraction-networking/utls v1.7.3/go.mod h1:TUhh27RHMGtQvjQq+RyO11P6ZNQNBb3N0v7wsEjKAIQ=
+github.com/refraction-networking/utls v1.8.0 h1:L38krhiTAyj9EeiQQa2sg+hYb4qwLCqdMcpZrRfbONE=
+github.com/refraction-networking/utls v1.8.0/go.mod h1:jkSOEkLqn+S/jtpEHPOsVv/4V4EVnelwbMQl4vCWXAM=
 github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3 h1:f/FNXud6gA3MNr8meMVVGxhp+QBTqY91tM8HjEuMjGg=
 github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3/go.mod h1:HgjTstvQsPGkxUsCd2KWxErBblirPizecHcpD3ffK+s=
+github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
+github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
 github.com/sagernet/sing v0.5.1 h1:mhL/MZVq0TjuvHcpYcFtmSD1BFOxZ/+8ofbNZcg1k1Y=
 github.com/sagernet/sing v0.5.1/go.mod h1:ARkL0gM13/Iv5VCZmci/NuoOlePoIsW0m7BWfln/Hak=
 github.com/sagernet/sing-shadowsocks v0.2.7 h1:zaopR1tbHEw5Nk6FAkM05wCslV6ahVegEZaKMv9ipx8=
@@ -70,37 +75,37 @@ 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 v0.0.0-20250715055725-05a351a64521 h1:hQQSzX6Y40nY1XT1TKAEpKwUHUUy3UvYKQIclLjYx9U=
-github.com/xtls/reality v0.0.0-20250715055725-05a351a64521/go.mod h1:yD47RN65bDLZgyHWMfFDiqlzrq4usDMt/Xzsk6tMbhw=
+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=
-go.opentelemetry.io/otel v1.35.0 h1:xKWKPxrxB6OtMCbmMY021CqC45J+3Onta9MqjhnusiQ=
-go.opentelemetry.io/otel v1.35.0/go.mod h1:UEqy8Zp11hpkUrL73gSlELM0DupHoiq72dR+Zqel/+Y=
-go.opentelemetry.io/otel/metric v1.35.0 h1:0znxYu2SNyuMSQT4Y9WDWej0VpcsxkuklLa4/siN90M=
-go.opentelemetry.io/otel/metric v1.35.0/go.mod h1:nKVFgxBZ2fReX6IlyW28MgZojkoAkJGaE8CpgeAU3oE=
-go.opentelemetry.io/otel/sdk v1.35.0 h1:iPctf8iprVySXSKJffSS79eOjl9pvxV9ZqOWT0QejKY=
-go.opentelemetry.io/otel/sdk v1.35.0/go.mod h1:+ga1bZliga3DxJ3CQGg3updiaAJoNECOgJREo9KHGQg=
-go.opentelemetry.io/otel/sdk/metric v1.35.0 h1:1RriWBmCKgkeHEhM7a2uMjMUfP7MsOF5JpUCaEqEI9o=
-go.opentelemetry.io/otel/sdk/metric v1.35.0/go.mod h1:is6XYCUMpcKi+ZsOvfluY5YstFnhW0BidkR+gL+qN+w=
-go.opentelemetry.io/otel/trace v1.35.0 h1:dPpEfJu1sDIqruz7BHFG3c7528f6ddfSWfFDVt/xgMs=
-go.opentelemetry.io/otel/trace v1.35.0/go.mod h1:WUk7DtFp1Aw2MkvqGdwiXYDZZNvA/1J8o6xRXLrIkyc=
+go.opentelemetry.io/otel v1.36.0 h1:UumtzIklRBY6cI/lllNZlALOF5nNIzJVb16APdvgTXg=
+go.opentelemetry.io/otel v1.36.0/go.mod h1:/TcFMXYjyRNh8khOAO9ybYkqaDBb/70aVwkNML4pP8E=
+go.opentelemetry.io/otel/metric v1.36.0 h1:MoWPKVhQvJ+eeXWHFBOPoBOi20jh6Iq2CcCREuTYufE=
+go.opentelemetry.io/otel/metric v1.36.0/go.mod h1:zC7Ks+yeyJt4xig9DEw9kuUFe5C3zLbVjV2PzT6qzbs=
+go.opentelemetry.io/otel/sdk v1.36.0 h1:b6SYIuLRs88ztox4EyrvRti80uXIFy+Sqzoh9kFULbs=
+go.opentelemetry.io/otel/sdk v1.36.0/go.mod h1:+lC+mTgD+MUWfjJubi2vvXWcVxyr9rmlshZni72pXeY=
+go.opentelemetry.io/otel/sdk/metric v1.36.0 h1:r0ntwwGosWGaa0CrSt8cuNuTcccMXERFwHX4dThiPis=
+go.opentelemetry.io/otel/sdk/metric v1.36.0/go.mod h1:qTNOhFDfKRwX0yXOqJYegL5WRaW376QbB7P4Pb0qva4=
+go.opentelemetry.io/otel/trace v1.36.0 h1:ahxWNuqZjpdiFAyrIoQ4GIiAIhxAunQR6MUoKrsNd4w=
+go.opentelemetry.io/otel/trace v1.36.0/go.mod h1:gQ+OnDZzrybY4k4seLzPAWNwVBBVlF2szhehOBB/tGA=
 go.uber.org/mock v0.5.0 h1:KAMbZvZPyBPWgD14IrIQ38QCyjwpvVVV6K/bHl1IwQU=
 go.uber.org/mock v0.5.0/go.mod h1:ge71pBPLYDk7QIi1LupWxdAykm7KIEFchiOqd6z7qMM=
 go4.org/netipx v0.0.0-20231129151722-fdeea329fbba h1:0b9z3AuHCjxk0x/opv64kcgZLBseWJUpBw5I82+2U4M=
 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=
@@ -111,23 +116,22 @@ golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 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 v0.5.0/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=
@@ -135,14 +139,15 @@ golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 h1:B82qJJgjvYKsXS9jeu
 golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2/go.mod h1:deeaetjYA+DHMHg+sMSMI58GrEteJUUzzw7en6TJQcI=
 golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173 h1:/jFs0duh4rdb8uIfPMv78iAJGcPKDeqAFnaLBropIC4=
 golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173/go.mod h1:tkCQ4FQXmpAgYVh++1cq16/dH4QJtmvpRv19DWGAHSA=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20250324211829-b45e905df463 h1:e0AIkUUhxyBKh6ssZNrAMeqhA7RKUj42346d1y02i2g=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20250324211829-b45e905df463/go.mod h1:qQ0YXyHHx3XkvlzUtpXDkS29lDSafHMZBAZDc03LQ3A=
-google.golang.org/grpc v1.73.0 h1:VIWSmpI2MegBtTuFt5/JWy2oXxtjJ/e89Z70ImfD2ok=
-google.golang.org/grpc v1.73.0/go.mod h1:50sbHOUqWoCQGI8V2HQLJM0B+LMlIUjNSZmow7EVBQc=
-google.golang.org/protobuf v1.36.6 h1:z1NpPI8ku2WgiWnf+t9wTPsn6eP1L7ksHUlkfLvd9xY=
-google.golang.org/protobuf v1.36.6/go.mod h1:jduwjTPXsFjZGTmRluh+L6NjiWu7pchiJ2/5YcXBHnY=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20250528174236-200df99c418a h1:v2PbRU4K3llS09c7zodFpNePeamkAwG3mPrAery9VeE=
+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 v1.36.7 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=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=

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

@@ -412,6 +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.
@@ -435,7 +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`)
 			}
 		}
@@ -483,6 +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
 }
 
@@ -505,16 +532,18 @@ type REALITYConfig struct {
 	MaxClientVer string          `json:"maxClientVer"`
 	MaxTimeDiff  uint64          `json:"maxTimeDiff"`
 	ShortIds     []string        `json:"shortIds"`
+	Mldsa65Seed  string          `json:"mldsa65Seed"`
 
 	LimitFallbackUpload   LimitFallback `json:"limitFallbackUpload"`
 	LimitFallbackDownload LimitFallback `json:"limitFallbackDownload"`
 
-	Fingerprint string `json:"fingerprint"`
-	ServerName  string `json:"serverName"`
-	Password    string `json:"password"`
-	PublicKey   string `json:"publicKey"`
-	ShortId     string `json:"shortId"`
-	SpiderX     string `json:"spiderX"`
+	Fingerprint   string `json:"fingerprint"`
+	ServerName    string `json:"serverName"`
+	Password      string `json:"password"`
+	PublicKey     string `json:"publicKey"`
+	ShortId       string `json:"shortId"`
+	Mldsa65Verify string `json:"mldsa65Verify"`
+	SpiderX       string `json:"spiderX"`
 }
 
 func (c *REALITYConfig) Build() (proto.Message, error) {
@@ -610,6 +639,15 @@ func (c *REALITYConfig) Build() (proto.Message, error) {
 		config.ServerNames = c.ServerNames
 		config.MaxTimeDiff = c.MaxTimeDiff
 
+		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)
 		config.LimitFallbackUpload.AfterBytes = c.LimitFallbackUpload.AfterBytes
 		config.LimitFallbackUpload.BytesPerSec = c.LimitFallbackUpload.BytesPerSec
@@ -645,6 +683,11 @@ 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 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/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

@@ -16,5 +16,6 @@ func init() {
 		cmdUUID,
 		cmdX25519,
 		cmdWG,
+		cmdMLDSA65,
 	)
 }

main/commands/all/mldsa65.go

@@ -0,0 +1,42 @@
+package all
+
+import (
+	"crypto/rand"
+	"encoding/base64"
+	"fmt"
+
+	"github.com/cloudflare/circl/sign/mldsa/mldsa65"
+	"github.com/xtls/xray-core/main/commands/base"
+)
+
+var cmdMLDSA65 = &base.Command{
+	UsageLine: `{{.Exec}} mldsa65 [-i "seed (base64.RawURLEncoding)"]`,
+	Short:     `Generate key pair for ML-DSA-65 post-quantum signature`,
+	Long: `
+Generate key pair for ML-DSA-65 post-quantum signature.
+
+Random: {{.Exec}} mldsa65
+
+From seed: {{.Exec}} mldsa65 -i "seed (base64.RawURLEncoding)"
+`,
+}
+
+func init() {
+	cmdMLDSA65.Run = executeMLDSA65 // break init loop
+}
+
+var input_seed = 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)
+		seed = [32]byte(s)
+	} else {
+		rand.Read(seed[:])
+	}
+	pub, _ := mldsa65.NewKeyFromSeed(&seed)
+	fmt.Printf("Seed: %v\nVerify: %v",
+		base64.RawURLEncoding.EncodeToString(seed[:]),
+		base64.RawURLEncoding.EncodeToString(pub.Bytes()))
+}

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

@@ -40,10 +40,12 @@ func executePing(cmd *base.Command, args []string) {
 	}
 
 	domainWithPort := cmdPing.Flag.Arg(0)
-	fmt.Println("Tls ping: ", domainWithPort)
+	fmt.Println("TLS ping: ", domainWithPort)
 	TargetPort := 443
 	domain, port, err := net.SplitHostPort(domainWithPort)
-	if err == nil {
+	if err != nil {
+		domain = domainWithPort
+	} else {
 		TargetPort, _ = strconv.Atoi(port)
 	}
 
@@ -61,7 +63,7 @@ func executePing(cmd *base.Command, args []string) {
 		}
 		ip = v.IP
 	}
-	fmt.Println("Using IP: ", ip.String())
+	fmt.Println("Using IP: ", ip.String()+":"+strconv.Itoa(TargetPort))
 
 	fmt.Println("-------------------")
 	fmt.Println("Pinging without SNI")
@@ -72,7 +74,7 @@ func executePing(cmd *base.Command, args []string) {
 		}
 		tlsConn := gotls.Client(tcpConn, &gotls.Config{
 			InsecureSkipVerify: true,
-			NextProtos:         []string{"http/1.1"},
+			NextProtos:         []string{"h2", "http/1.1"},
 			MaxVersion:         gotls.VersionTLS13,
 			MinVersion:         gotls.VersionTLS12,
 			// Do not release tool before v5's refactor
@@ -98,7 +100,7 @@ func executePing(cmd *base.Command, args []string) {
 		}
 		tlsConn := gotls.Client(tcpConn, &gotls.Config{
 			ServerName: domain,
-			NextProtos: []string{"http/1.1"},
+			NextProtos: []string{"h2", "http/1.1"},
 			MaxVersion: gotls.VersionTLS13,
 			MinVersion: gotls.VersionTLS12,
 			// Do not release tool before v5's refactor
@@ -106,24 +108,33 @@ func executePing(cmd *base.Command, args []string) {
 		})
 		err = tlsConn.Handshake()
 		if err != nil {
-			fmt.Println("handshake failure: ", err)
+			fmt.Println("Handshake failure: ", err)
 		} else {
-			fmt.Println("handshake succeeded")
+			fmt.Println("Handshake succeeded")
 			printTLSConnDetail(tlsConn)
 			printCertificates(tlsConn.ConnectionState().PeerCertificates)
 		}
 		tlsConn.Close()
 	}
 
-	fmt.Println("Tls ping finished")
+	fmt.Println("-------------------")
+	fmt.Println("TLS ping finished")
 }
 
 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("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)
 	}
 }
 
@@ -134,13 +145,13 @@ func printTLSConnDetail(tlsConn *gotls.Conn) {
 	} else if tlsConn.ConnectionState().Version == gotls.VersionTLS12 {
 		tlsVersion = "TLS 1.2"
 	}
-	fmt.Println("TLS Version:", tlsVersion)
+	fmt.Println("TLS Version: ", tlsVersion)
 	curveID := *(*gotls.CurveID)(unsafe.Pointer(reflect.ValueOf(tlsConn).Elem().FieldByName("curveID").UnsafeAddr()))
 	if curveID != 0 {
 		PostQuantum := (curveID == gotls.X25519MLKEM768)
-		fmt.Println("Post-Quantum key exchange:", PostQuantum, "("+curveID.String()+")")
+		fmt.Println("TLS Post-Quantum key exchange: ", PostQuantum, "("+curveID.String()+")")
 	} else {
-		fmt.Println("Post-Quantum key exchange: false (RSA Exchange)")
+		fmt.Println("TLS Post-Quantum key exchange:  false (RSA Exchange)")
 	}
 }
 

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,
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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,
-	0x52, 0x06, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x22, 0xd0, 0x01, 0x0a, 0x08, 0x46, 0x72, 0x61,
+	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{
 	0x6c, 0x5f, 0x6d, 0x69, 0x6e, 0x18, 0x05, 0x20, 0x01, 0x28, 0x04, 0x52, 0x0b, 0x69, 0x6e, 0x74,
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+	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

@@ -18,6 +18,7 @@ import (
 	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/common/signal"
 	"github.com/xtls/xray-core/common/task"
+	"github.com/xtls/xray-core/common/utils"
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/dns"
 	"github.com/xtls/xray-core/features/policy"
@@ -193,7 +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,
@@ -202,7 +203,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 				writer = buf.NewWriter(conn)
 			}
 		} else {
-			writer = NewPacketWriter(conn, h, ctx, UDPOverride)
+			writer = NewPacketWriter(conn, h, ctx, UDPOverride, destination)
 			if h.config.Noises != nil {
 				errors.LogDebug(ctx, "NOISE", h.config.Noises)
 				writer = &NoisePacketWriter{
@@ -210,6 +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,
 				}
 			}
 		}
@@ -238,7 +240,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 		if destination.Network == net.Network_TCP {
 			reader = buf.NewReader(conn)
 		} else {
-			reader = NewPacketReader(conn, UDPOverride)
+			reader = NewPacketReader(conn, UDPOverride, destination)
 		}
 		if err := buf.Copy(reader, output, buf.UpdateActivity(timer)); err != nil {
 			return errors.New("failed to process response").Base(err)
@@ -273,7 +275,7 @@ func isTLSConn(conn stat.Connection) bool {
 	return false
 }
 
-func NewPacketReader(conn net.Conn, UDPOverride net.Destination) buf.Reader {
+func NewPacketReader(conn net.Conn, UDPOverride net.Destination, DialDest net.Destination) buf.Reader {
 	iConn := conn
 	statConn, ok := iConn.(*stat.CounterConnection)
 	if ok {
@@ -283,10 +285,18 @@ func NewPacketReader(conn net.Conn, UDPOverride net.Destination) buf.Reader {
 	if statConn != nil {
 		counter = statConn.ReadCounter
 	}
-	if c, ok := iConn.(*internet.PacketConnWrapper); ok && UDPOverride.Address == nil && UDPOverride.Port == 0 {
+	if c, ok := iConn.(*internet.PacketConnWrapper); ok {
+		isOverridden := false
+		if UDPOverride.Address != nil || UDPOverride.Port != 0 {
+			isOverridden = true
+		}
+
 		return &PacketReader{
 			PacketConnWrapper: c,
 			Counter:           counter,
+			IsOverridden:      isOverridden,
+			InitUnchangedAddr: DialDest.Address,
+			InitChangedAddr:   net.DestinationFromAddr(conn.RemoteAddr()).Address,
 		}
 	}
 	return &buf.PacketReader{Reader: conn}
@@ -295,6 +305,9 @@ func NewPacketReader(conn net.Conn, UDPOverride net.Destination) buf.Reader {
 type PacketReader struct {
 	*internet.PacketConnWrapper
 	stats.Counter
+	IsOverridden      bool
+	InitUnchangedAddr net.Address
+	InitChangedAddr   net.Address
 }
 
 func (r *PacketReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
@@ -306,10 +319,18 @@ func (r *PacketReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
 		return nil, err
 	}
 	b.Resize(0, int32(n))
-	b.UDP = &net.Destination{
-		Address: net.IPAddress(d.(*net.UDPAddr).IP),
-		Port:    net.Port(d.(*net.UDPAddr).Port),
-		Network: net.Network_UDP,
+	// if 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.IsOverridden {
+		address := net.IPAddress(d.(*net.UDPAddr).IP)
+		if r.InitChangedAddr == address {
+			address = r.InitUnchangedAddr
+		}
+		b.UDP = &net.Destination{
+			Address: address,
+			Port:    net.Port(d.(*net.UDPAddr).Port),
+			Network: net.Network_UDP,
+		}
 	}
 	if r.Counter != nil {
 		r.Counter.Add(int64(n))
@@ -317,7 +338,8 @@ func (r *PacketReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
 	return buf.MultiBuffer{b}, nil
 }
 
-func NewPacketWriter(conn net.Conn, h *Handler, ctx context.Context, UDPOverride net.Destination) buf.Writer {
+// DialDest means the dial target used in the dialer when creating conn
+func NewPacketWriter(conn net.Conn, h *Handler, ctx context.Context, UDPOverride net.Destination, DialDest net.Destination) buf.Writer {
 	iConn := conn
 	statConn, ok := iConn.(*stat.CounterConnection)
 	if ok {
@@ -328,12 +350,19 @@ func NewPacketWriter(conn net.Conn, h *Handler, ctx context.Context, UDPOverride
 		counter = statConn.WriteCounter
 	}
 	if c, ok := iConn.(*internet.PacketConnWrapper); ok {
+		// If DialDest is a domain, it will be resolved in dialer
+		// check this behavior and add it to map
+		resolvedUDPAddr := utils.NewTypedSyncMap[string, net.Address]()
+		if DialDest.Address.Family().IsDomain() {
+			resolvedUDPAddr.Store(DialDest.Address.Domain(), net.DestinationFromAddr(conn.RemoteAddr()).Address)
+		}
 		return &PacketWriter{
 			PacketConnWrapper: c,
 			Counter:           counter,
 			Handler:           h,
 			Context:           ctx,
 			UDPOverride:       UDPOverride,
+			resolvedUDPAddr:   resolvedUDPAddr,
 		}
 
 	}
@@ -346,6 +375,12 @@ type PacketWriter struct {
 	*Handler
 	context.Context
 	UDPOverride net.Destination
+
+	// Dest of udp packets might be a domain, we will resolve them to IP
+	// But resolver will return a random one if the domain has many IPs
+	// Resulting in these packets being sent to many different IPs randomly
+	// So, cache and keep the resolve result
+	resolvedUDPAddr *utils.TypedSyncMap[string, net.Address]
 }
 
 func (w *PacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
@@ -364,10 +399,34 @@ func (w *PacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
 			if w.UDPOverride.Port != 0 {
 				b.UDP.Port = w.UDPOverride.Port
 			}
-			if w.Handler.config.hasStrategy() && b.UDP.Address.Family().IsDomain() {
-				ip := w.Handler.resolveIP(w.Context, b.UDP.Address.Domain(), nil)
-				if ip != nil {
+			if b.UDP.Address.Family().IsDomain() {
+				if ip, ok := w.resolvedUDPAddr.Load(b.UDP.Address.Domain()); ok {
 					b.UDP.Address = ip
+				} else {
+					ShouldUseSystemResolver := true
+					if w.Handler.config.hasStrategy() {
+						ip = w.Handler.resolveIP(w.Context, b.UDP.Address.Domain(), nil)
+						if ip != nil {
+							ShouldUseSystemResolver = false
+						}
+						// drop packet if resolve failed when forceIP
+						if ip == nil && w.Handler.config.forceIP() {
+							b.Release()
+							continue
+						}
+					}
+					if ShouldUseSystemResolver {
+						udpAddr, err := net.ResolveUDPAddr("udp", b.UDP.NetAddr())
+						if err != nil {
+							b.Release()
+							continue
+						} else {
+							ip = net.IPAddress(udpAddr.IP)
+						}
+					}
+					if ip != nil {
+						b.UDP.Address, _ = w.resolvedUDPAddr.LoadOrStore(b.UDP.Address.Domain(), ip)
+					}
 				}
 			}
 			destAddr, _ := net.ResolveUDPAddr("udp", b.UDP.NetAddr())
@@ -396,6 +455,7 @@ type NoisePacketWriter struct {
 	noises      []*Noise
 	firstWrite  bool
 	UDPOverride net.Destination
+	remoteAddr  net.Address
 }
 
 // MultiBuffer writer with Noise before first packet
@@ -408,8 +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 {
@@ -449,23 +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
@@ -492,17 +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/shadowsocks/server.go

@@ -128,6 +128,7 @@ func (s *Server) handleUDPPayload(ctx context.Context, conn stat.Connection, dis
 
 		conn.Write(data.Bytes())
 	})
+	defer udpServer.RemoveRay()
 
 	inbound := session.InboundFromContext(ctx)
 	var dest *net.Destination

proxy/socks/server.go

@@ -245,13 +245,15 @@ func (s *Server) handleUDPPayload(ctx context.Context, conn stat.Connection, dis
 		udpMessage, err := EncodeUDPPacket(request, payload.Bytes())
 		payload.Release()
 
-		defer udpMessage.Release()
 		if err != nil {
 			errors.LogWarningInner(ctx, err, "failed to write UDP response")
+			return
 		}
+		defer udpMessage.Release()
 
 		conn.Write(udpMessage.Bytes())
 	})
+	defer udpServer.RemoveRay()
 
 	inbound := session.InboundFromContext(ctx)
 	if inbound != nil && inbound.Source.IsValid() {

proxy/trojan/server.go

@@ -259,6 +259,7 @@ func (s *Server) handleUDPPayload(ctx context.Context, clientReader *PacketReade
 			errors.LogWarningInner(ctx, err, "failed to write response")
 		}
 	})
+	defer udpServer.RemoveRay()
 
 	inbound := session.InboundFromContext(ctx)
 	user := inbound.User

proxy/vless/inbound/inbound.go

@@ -206,7 +206,10 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 
 	first := buf.FromBytes(make([]byte, buf.Size))
 	first.Clear()
-	firstLen, _ := first.ReadFrom(connection)
+	firstLen, errR := first.ReadFrom(connection)
+	if errR != nil {
+		return errR
+	}
 	errors.LogInfo(ctx, "firstLen = ", firstLen)
 
 	reader := &buf.BufferedReader{

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"
@@ -32,6 +33,10 @@ func (c *Config) GetREALITYConfig() *reality.Config {
 
 		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

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.35.1
-// 	protoc        v5.29.4
+// 	protoc        v5.28.2
 // source: transport/internet/reality/config.proto
 
 package reality
@@ -35,15 +35,17 @@ 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"`
+	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"`
 	ServerName            string         `protobuf:"bytes,22,opt,name=server_name,json=serverName,proto3" json:"server_name,omitempty"`
 	PublicKey             []byte         `protobuf:"bytes,23,opt,name=public_key,json=publicKey,proto3" json:"public_key,omitempty"`
 	ShortId               []byte         `protobuf:"bytes,24,opt,name=short_id,json=shortId,proto3" json:"short_id,omitempty"`
-	SpiderX               string         `protobuf:"bytes,25,opt,name=spider_x,json=spiderX,proto3" json:"spider_x,omitempty"`
-	SpiderY               []int64        `protobuf:"varint,26,rep,packed,name=spider_y,json=spiderY,proto3" json:"spider_y,omitempty"`
-	MasterKeyLog          string         `protobuf:"bytes,27,opt,name=master_key_log,json=masterKeyLog,proto3" json:"master_key_log,omitempty"`
-	LimitFallbackUpload   *LimitFallback `protobuf:"bytes,28,opt,name=limit_fallback_upload,json=limitFallbackUpload,proto3" json:"limit_fallback_upload,omitempty"`
-	LimitFallbackDownload *LimitFallback `protobuf:"bytes,29,opt,name=limit_fallback_download,json=limitFallbackDownload,proto3" json:"limit_fallback_download,omitempty"`
+	Mldsa65Verify         []byte         `protobuf:"bytes,25,opt,name=mldsa65_verify,json=mldsa65Verify,proto3" json:"mldsa65_verify,omitempty"`
+	SpiderX               string         `protobuf:"bytes,26,opt,name=spider_x,json=spiderX,proto3" json:"spider_x,omitempty"`
+	SpiderY               []int64        `protobuf:"varint,27,rep,packed,name=spider_y,json=spiderY,proto3" json:"spider_y,omitempty"`
+	MasterKeyLog          string         `protobuf:"bytes,31,opt,name=master_key_log,json=masterKeyLog,proto3" json:"master_key_log,omitempty"`
 }
 
 func (x *Config) Reset() {
@@ -146,6 +148,27 @@ func (x *Config) GetShortIds() [][]byte {
 	return nil
 }
 
+func (x *Config) GetMldsa65Seed() []byte {
+	if x != nil {
+		return x.Mldsa65Seed
+	}
+	return nil
+}
+
+func (x *Config) GetLimitFallbackUpload() *LimitFallback {
+	if x != nil {
+		return x.LimitFallbackUpload
+	}
+	return nil
+}
+
+func (x *Config) GetLimitFallbackDownload() *LimitFallback {
+	if x != nil {
+		return x.LimitFallbackDownload
+	}
+	return nil
+}
+
 func (x *Config) GetFingerprint() string {
 	if x != nil {
 		return x.Fingerprint
@@ -174,6 +197,13 @@ func (x *Config) GetShortId() []byte {
 	return nil
 }
 
+func (x *Config) GetMldsa65Verify() []byte {
+	if x != nil {
+		return x.Mldsa65Verify
+	}
+	return nil
+}
+
 func (x *Config) GetSpiderX() string {
 	if x != nil {
 		return x.SpiderX
@@ -195,20 +225,6 @@ func (x *Config) GetMasterKeyLog() string {
 	return ""
 }
 
-func (x *Config) GetLimitFallbackUpload() *LimitFallback {
-	if x != nil {
-		return x.LimitFallbackUpload
-	}
-	return nil
-}
-
-func (x *Config) GetLimitFallbackDownload() *LimitFallback {
-	if x != nil {
-		return x.LimitFallbackDownload
-	}
-	return nil
-}
-
 type LimitFallback struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -277,7 +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, 0xce, 0x05, 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,
@@ -296,50 +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,
-	0x6f, 0x72, 0x74, 0x49, 0x64, 0x73, 0x12, 0x20, 0x0a, 0x0b, 0x46, 0x69, 0x6e, 0x67, 0x65, 0x72,
-	0x70, 0x72, 0x69, 0x6e, 0x74, 0x18, 0x15, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0b, 0x46, 0x69, 0x6e,
-	0x67, 0x65, 0x72, 0x70, 0x72, 0x69, 0x6e, 0x74, 0x12, 0x1f, 0x0a, 0x0b, 0x73, 0x65, 0x72, 0x76,
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-	0x65, 0x72, 0x76, 0x65, 0x72, 0x4e, 0x61, 0x6d, 0x65, 0x12, 0x1d, 0x0a, 0x0a, 0x70, 0x75, 0x62,
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+	0x17, 0x6c, 0x69, 0x6d, 0x69, 0x74, 0x5f, 0x66, 0x61, 0x6c, 0x6c, 0x62, 0x61, 0x63, 0x6b, 0x5f,
+	0x64, 0x6f, 0x77, 0x6e, 0x6c, 0x6f, 0x61, 0x64, 0x18, 0x0d, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x2e,
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-	0x20, 0x01, 0x28, 0x0b, 0x32, 0x2e, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e,
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+	0x65, 0x74, 0x2f, 0x72, 0x65, 0x61, 0x6c, 0x69, 0x74, 0x79, 0xaa, 0x02, 0x1f, 0x58, 0x72, 0x61,
+	0x79, 0x2e, 0x54, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x49, 0x6e, 0x74, 0x65,
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+	0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

transport/internet/reality/config.proto

@@ -18,16 +18,19 @@ message Config {
   uint64 max_time_diff = 9;
   repeated bytes short_ids = 10;
 
+  bytes mldsa65_seed = 11;
+  LimitFallback limit_fallback_upload = 12;
+  LimitFallback limit_fallback_download = 13;
+
   string Fingerprint = 21;
   string server_name = 22;
   bytes public_key = 23;
   bytes short_id = 24;
-  string spider_x = 25;
-  repeated int64 spider_y = 26;
-  string master_key_log = 27;
+  bytes mldsa65_verify = 25;
+  string spider_x = 26;
+  repeated int64 spider_y = 27;
 
-  LimitFallback limit_fallback_upload = 28;
-  LimitFallback limit_fallback_download = 29;
+  string master_key_log = 31;
 }
 
 message LimitFallback {

transport/internet/reality/reality.go

@@ -23,6 +23,7 @@ import (
 	"time"
 	"unsafe"
 
+	"github.com/cloudflare/circl/sign/mldsa/mldsa65"
 	utls "github.com/refraction-networking/utls"
 	"github.com/xtls/reality"
 	"github.com/xtls/xray-core/common/crypto"
@@ -56,6 +57,7 @@ func Server(c net.Conn, config *reality.Config) (net.Conn, error) {
 
 type UConn struct {
 	*utls.UConn
+	Config     *Config
 	ServerName string
 	AuthKey    []byte
 	Verified   bool
@@ -73,14 +75,32 @@ func (c *UConn) HandshakeAddress() net.Address {
 }
 
 func (c *UConn) VerifyPeerCertificate(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error {
+	if c.Config.Show {
+		localAddr := c.LocalAddr().String()
+		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")
 	certs := *(*([]*x509.Certificate))(unsafe.Pointer(uintptr(unsafe.Pointer(c.Conn)) + p.Offset))
 	if pub, ok := certs[0].PublicKey.(ed25519.PublicKey); ok {
 		h := hmac.New(sha512.New, c.AuthKey)
 		h.Write(pub)
 		if bytes.Equal(h.Sum(nil), certs[0].Signature) {
-			c.Verified = true
-			return nil
+			if len(c.Config.Mldsa65Verify) > 0 {
+				if len(certs[0].Extensions) > 0 {
+					h.Write(c.HandshakeState.Hello.Raw)
+					h.Write(c.HandshakeState.ServerHello.Raw)
+					verify, _ := mldsa65.Scheme().UnmarshalBinaryPublicKey(c.Config.Mldsa65Verify)
+					if mldsa65.Verify(verify.(*mldsa65.PublicKey), h.Sum(nil), nil, certs[0].Extensions[0].Value) {
+						c.Verified = true
+						return nil
+					}
+				}
+			} else {
+				c.Verified = true
+				return nil
+			}
 		}
 	}
 	opts := x509.VerifyOptions{
@@ -98,7 +118,9 @@ func (c *UConn) VerifyPeerCertificate(rawCerts [][]byte, verifiedChains [][]*x50
 
 func UClient(c net.Conn, config *Config, ctx context.Context, dest net.Destination) (net.Conn, error) {
 	localAddr := c.LocalAddr().String()
-	uConn := &UConn{}
+	uConn := &UConn{
+		Config: config,
+	}
 	utlsConfig := &utls.Config{
 		VerifyPeerCertificate:  uConn.VerifyPeerCertificate,
 		ServerName:             config.ServerName,
@@ -127,16 +149,20 @@ func UClient(c net.Conn, config *Config, ctx context.Context, dest net.Destinati
 		binary.BigEndian.PutUint32(hello.SessionId[4:], uint32(time.Now().Unix()))
 		copy(hello.SessionId[8:], config.ShortId)
 		if config.Show {
-			errors.LogInfo(ctx, fmt.Sprintf("REALITY localAddr: %v\thello.SessionId[:16]: %v\n", localAddr, hello.SessionId[:16]))
+			fmt.Printf("REALITY localAddr: %v\thello.SessionId[:16]: %v\n", localAddr, hello.SessionId[:16])
 		}
 		publicKey, err := ecdh.X25519().NewPublicKey(config.PublicKey)
 		if err != nil {
 			return nil, errors.New("REALITY: publicKey == nil")
 		}
-		if uConn.HandshakeState.State13.KeyShareKeys.Ecdhe == nil {
+		ecdhe := uConn.HandshakeState.State13.KeyShareKeys.Ecdhe
+		if ecdhe == nil {
+			ecdhe = uConn.HandshakeState.State13.KeyShareKeys.MlkemEcdhe
+		}
+		if ecdhe == nil {
 			return nil, errors.New("Current fingerprint ", uConn.ClientHelloID.Client, uConn.ClientHelloID.Version, " does not support TLS 1.3, REALITY handshake cannot establish.")
 		}
-		uConn.AuthKey, _ = uConn.HandshakeState.State13.KeyShareKeys.Ecdhe.ECDH(publicKey)
+		uConn.AuthKey, _ = ecdhe.ECDH(publicKey)
 		if uConn.AuthKey == nil {
 			return nil, errors.New("REALITY: SharedKey == nil")
 		}
@@ -146,7 +172,7 @@ func UClient(c net.Conn, config *Config, ctx context.Context, dest net.Destinati
 		block, _ := aes.NewCipher(uConn.AuthKey)
 		aead, _ := cipher.NewGCM(block)
 		if config.Show {
-			errors.LogInfo(ctx, fmt.Sprintf("REALITY localAddr: %v\tuConn.AuthKey[:16]: %v\tAEAD: %T\n", localAddr, uConn.AuthKey[:16], aead))
+			fmt.Printf("REALITY localAddr: %v\tuConn.AuthKey[:16]: %v\tAEAD: %T\n", localAddr, uConn.AuthKey[:16], aead)
 		}
 		aead.Seal(hello.SessionId[:0], hello.Random[20:], hello.SessionId[:16], hello.Raw)
 		copy(hello.Raw[39:], hello.SessionId)
@@ -155,14 +181,14 @@ func UClient(c net.Conn, config *Config, ctx context.Context, dest net.Destinati
 		return nil, err
 	}
 	if config.Show {
-		errors.LogInfo(ctx, fmt.Sprintf("REALITY localAddr: %v\tuConn.Verified: %v\n", localAddr, uConn.Verified))
+		fmt.Printf("REALITY localAddr: %v\tuConn.Verified: %v\n", localAddr, uConn.Verified)
 	}
 	if !uConn.Verified {
 		go func() {
 			client := &http.Client{
 				Transport: &http2.Transport{
 					DialTLSContext: func(ctx context.Context, network, addr string, cfg *gotls.Config) (net.Conn, error) {
-						errors.LogInfo(ctx, fmt.Sprintf("REALITY localAddr: %v\tDialTLSContext\n", localAddr))
+						fmt.Printf("REALITY localAddr: %v\tDialTLSContext\n", localAddr)
 						return uConn, nil
 					},
 				},
@@ -199,7 +225,7 @@ func UClient(c net.Conn, config *Config, ctx context.Context, dest net.Destinati
 				}
 				req.Header.Set("User-Agent", fingerprint.Client) // TODO: User-Agent map
 				if first && config.Show {
-					errors.LogInfo(ctx, fmt.Sprintf("REALITY localAddr: %v\treq.UserAgent(): %v\n", localAddr, req.UserAgent()))
+					fmt.Printf("REALITY localAddr: %v\treq.UserAgent(): %v\n", localAddr, req.UserAgent())
 				}
 				times := 1
 				if !first {
@@ -227,9 +253,9 @@ func UClient(c net.Conn, config *Config, ctx context.Context, dest net.Destinati
 					}
 					req.URL.Path = getPathLocked(paths)
 					if config.Show {
-						errors.LogInfo(ctx, fmt.Sprintf("REALITY localAddr: %v\treq.Referer(): %v\n", localAddr, req.Referer()))
-						errors.LogInfo(ctx, fmt.Sprintf("REALITY localAddr: %v\tlen(body): %v\n", localAddr, len(body)))
-						errors.LogInfo(ctx, fmt.Sprintf("REALITY localAddr: %v\tlen(paths): %v\n", localAddr, len(paths)))
+						fmt.Printf("REALITY localAddr: %v\treq.Referer(): %v\n", localAddr, req.Referer())
+						fmt.Printf("REALITY localAddr: %v\tlen(body): %v\n", localAddr, len(body))
+						fmt.Printf("REALITY localAddr: %v\tlen(paths): %v\n", localAddr, len(paths))
 					}
 					maps.Unlock()
 					if !first {

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/splithttp/dialer.go

@@ -489,15 +489,17 @@ func (w uploadWriter) Write(b []byte) (int, error) {
 		}
 	*/
 
-	buffer := buf.New()
+	buffer := buf.MultiBufferContainer{}
 	n, err := buffer.Write(b)
 	if err != nil {
 		return 0, err
 	}
 
-	err = w.WriteMultiBuffer([]*buf.Buffer{buffer})
-	if err != nil {
-		return 0, err
+	for _, buff := range buffer.MultiBuffer {
+		err := w.WriteMultiBuffer(buf.MultiBuffer{buff})
+		if err != nil {
+			return 0, err
+		}
 	}
 	return n, nil
 }

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{
 	0x72, 0x6e, 0x65, 0x74, 0x2f, 0x74, 0x6c, 0x73, 0x2f, 0x63, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x2e,
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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

@@ -44,6 +44,10 @@ func NewDispatcher(dispatcher routing.Dispatcher, callback ResponseCallback) *Di
 func (v *Dispatcher) RemoveRay() {
 	v.Lock()
 	defer v.Unlock()
+	v.removeRay()
+}
+
+func (v *Dispatcher) removeRay() {
 	if v.conn != nil {
 		common.Interrupt(v.conn.link.Reader)
 		common.Close(v.conn.link.Writer)
@@ -62,9 +66,15 @@ func (v *Dispatcher) getInboundRay(ctx context.Context, dest net.Destination) (*
 	errors.LogInfo(ctx, "establishing new connection for ", dest)
 
 	ctx, cancel := context.WithCancel(ctx)
+	entry := &connEntry{}
 	removeRay := func() {
-		cancel()
-		v.RemoveRay()
+		v.Lock()
+		defer v.Unlock()
+		// sometimes the entry is already removed by others, don't close again
+		if entry == v.conn {
+			cancel()
+			v.removeRay()
+		}
 	}
 	timer := signal.CancelAfterInactivity(ctx, removeRay, time.Minute)
 
@@ -73,7 +83,7 @@ func (v *Dispatcher) getInboundRay(ctx context.Context, dest net.Destination) (*
 		return nil, errors.New("failed to dispatch request to ", dest).Base(err)
 	}
 
-	entry := &connEntry{
+	*entry = connEntry{
 		link:   link,
 		timer:  timer,
 		cancel: removeRay,

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