set splice-timeout to 24 hours

README.md

@@ -11,10 +11,8 @@
 [<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: https://opensea.io/item/ethereum/0x5ee362866001613093361eb8569d59c4141b76d1/1**
-- **VLESS NFT: https://opensea.io/collection/vless**
 - **REALITY NFT: https://opensea.io/item/ethereum/0x5ee362866001613093361eb8569d59c4141b76d1/2**
-- **Related links: [VLESS Post-Quantum Encryption](https://github.com/XTLS/Xray-core/pull/5067), [XHTTP: Beyond REALITY](https://github.com/XTLS/Xray-core/discussions/4113), [Announcement of NFTs by Project X](https://github.com/XTLS/Xray-core/discussions/3633)**
+- **Related links: https://opensea.io/collection/xtls, [Announcement of NFTs by Project X](https://github.com/XTLS/Xray-core/discussions/3633), [XHTTP: Beyond REALITY](https://github.com/XTLS/Xray-core/discussions/4113)**
 
 ## License
 

app/dispatcher/default.go

@@ -29,7 +29,7 @@ var errSniffingTimeout = errors.New("timeout on sniffing")
 
 type cachedReader struct {
 	sync.Mutex
-	reader buf.TimeoutReader // *pipe.Reader or *buf.TimeoutWrapperReader
+	reader *pipe.Reader
 	cache  buf.MultiBuffer
 }
 
@@ -87,9 +87,7 @@ func (r *cachedReader) Interrupt() {
 		r.cache = buf.ReleaseMulti(r.cache)
 	}
 	r.Unlock()
-	if p, ok := r.reader.(*pipe.Reader); ok {
+	r.reader.Interrupt()
-		p.Interrupt()
-	}
 }
 
 // DefaultDispatcher is a default implementation of Dispatcher.
@@ -196,47 +194,6 @@ func (d *DefaultDispatcher) getLink(ctx context.Context) (*transport.Link, *tran
 	return inboundLink, outboundLink
 }
 
-func (d *DefaultDispatcher) WrapLink(ctx context.Context, link *transport.Link) *transport.Link {
-	sessionInbound := session.InboundFromContext(ctx)
-	var user *protocol.MemoryUser
-	if sessionInbound != nil {
-		user = sessionInbound.User
-	}
-
-	link.Reader = &buf.TimeoutWrapperReader{Reader: link.Reader}
-
-	if user != nil && len(user.Email) > 0 {
-		p := d.policy.ForLevel(user.Level)
-		if p.Stats.UserUplink {
-			name := "user>>>" + user.Email + ">>>traffic>>>uplink"
-			if c, _ := stats.GetOrRegisterCounter(d.stats, name); c != nil {
-				link.Reader.(*buf.TimeoutWrapperReader).Counter = c
-			}
-		}
-		if p.Stats.UserDownlink {
-			name := "user>>>" + user.Email + ">>>traffic>>>downlink"
-			if c, _ := stats.GetOrRegisterCounter(d.stats, name); c != nil {
-				link.Writer = &SizeStatWriter{
-					Counter: c,
-					Writer:  link.Writer,
-				}
-			}
-		}
-		if p.Stats.UserOnline {
-			name := "user>>>" + user.Email + ">>>online"
-			if om, _ := stats.GetOrRegisterOnlineMap(d.stats, name); om != nil {
-				sessionInbounds := session.InboundFromContext(ctx)
-				userIP := sessionInbounds.Source.Address.String()
-				om.AddIP(userIP)
-				// log Online user with ips
-				// errors.LogDebug(ctx, "user>>>" + user.Email + ">>>online", om.Count(), om.List())
-			}
-		}
-	}
-
-	return link
-}
-
 func (d *DefaultDispatcher) shouldOverride(ctx context.Context, result SniffResult, request session.SniffingRequest, destination net.Destination) bool {
 	domain := result.Domain()
 	if domain == "" {
@@ -357,13 +314,12 @@ func (d *DefaultDispatcher) DispatchLink(ctx context.Context, destination net.De
 		content = new(session.Content)
 		ctx = session.ContextWithContent(ctx, content)
 	}
-	outbound = d.WrapLink(ctx, outbound)
 	sniffingRequest := content.SniffingRequest
 	if !sniffingRequest.Enabled {
 		d.routedDispatch(ctx, outbound, destination)
 	} else {
 		cReader := &cachedReader{
-			reader: outbound.Reader.(buf.TimeoutReader),
+			reader: outbound.Reader.(*pipe.Reader),
 		}
 		outbound.Reader = cReader
 		result, err := sniffer(ctx, cReader, sniffingRequest.MetadataOnly, destination.Network)

app/dns/dns.go

@@ -329,7 +329,7 @@ func init() {
 }
 
 func checkSystemNetwork() (supportIPv4 bool, supportIPv6 bool) {
-	conn4, err4 := net.Dial("udp4", "192.33.4.12:53")
+	conn4, err4 := net.Dial("udp4", "8.8.8.8:53")
 	if err4 != nil {
 		supportIPv4 = false
 	} else {
@@ -337,7 +337,7 @@ func checkSystemNetwork() (supportIPv4 bool, supportIPv6 bool) {
 		conn4.Close()
 	}
 
-	conn6, err6 := net.Dial("udp6", "[2001:500:2::c]:53")
+	conn6, err6 := net.Dial("udp6", "[2001:4860:4860::8888]:53")
 	if err6 != nil {
 		supportIPv6 = false
 	} else {

app/dns/dnscommon_test.go

@@ -39,8 +39,8 @@ func Test_parseResponse(t *testing.T) {
 		common.Must2(dns.NewRR("google.com. IN CNAME fake.google.com")),
 		common.Must2(dns.NewRR("google.com. IN CNAME m.test.google.com")),
 		common.Must2(dns.NewRR("google.com. IN CNAME test.google.com")),
-		common.Must2(dns.NewRR("google.com. IN AAAA 2001:4860:4860::8888")),
+		common.Must2(dns.NewRR("google.com. IN AAAA 2001::123:8888")),
-		common.Must2(dns.NewRR("google.com. IN AAAA 2001:4860:4860::8844")),
+		common.Must2(dns.NewRR("google.com. IN AAAA 2001::123:8844")),
 	)
 	p = append(p, common.Must2(ans.Pack()))
 
@@ -72,7 +72,7 @@ func Test_parseResponse(t *testing.T) {
 		},
 		{
 			"aaaa record",
-			&IPRecord{2, []net.IP{net.ParseIP("2001:4860:4860::8888"), net.ParseIP("2001:4860:4860::8844")}, time.Time{}, dnsmessage.RCodeSuccess, nil},
+			&IPRecord{2, []net.IP{net.ParseIP("2001::123:8888"), net.ParseIP("2001::123:8844")}, time.Time{}, dnsmessage.RCodeSuccess, nil},
 			false,
 		},
 	}

app/dns/nameserver_udp.go

@@ -90,9 +90,7 @@ func (s *ClassicNameServer) RequestsCleanup() error {
 
 // HandleResponse handles udp response packet from remote DNS server.
 func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_proto.Packet) {
-	payload := packet.Payload
+	ipRec, err := parseResponse(packet.Payload.Bytes())
-	ipRec, err := parseResponse(payload.Bytes())
-	payload.Release()
 	if err != nil {
 		errors.LogError(ctx, s.Name(), " fail to parse responded DNS udp")
 		return
@@ -127,8 +125,6 @@ func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_prot
 			newReq.msg = &newMsg
 			s.addPendingRequest(&newReq)
 			b, _ := dns.PackMessage(newReq.msg)
-			copyDest := net.UDPDestination(s.address.Address, s.address.Port)
-			b.UDP = &copyDest
 			s.udpServer.Dispatch(toDnsContext(newReq.ctx, s.address.String()), *s.address, b)
 			return
 		}
@@ -162,8 +158,6 @@ func (s *ClassicNameServer) sendQuery(ctx context.Context, _ chan<- error, domai
 		}
 		s.addPendingRequest(udpReq)
 		b, _ := dns.PackMessage(req.msg)
-		copyDest := net.UDPDestination(s.address.Address, s.address.Port)
-		b.UDP = &copyDest
 		s.udpServer.Dispatch(toDnsContext(ctx, s.address.String()), *s.address, b)
 	}
 }

app/proxyman/outbound/handler.go

@@ -239,10 +239,8 @@ func (h *Handler) Dispatch(ctx context.Context, link *transport.Link) {
 	}
 out:
 	err := h.proxy.Process(ctx, link, h)
-	var errC error
 	if err != nil {
-		errC = errors.Cause(err)
+		if goerrors.Is(err, io.EOF) || goerrors.Is(err, io.ErrClosedPipe) || goerrors.Is(err, context.Canceled) {
-		if goerrors.Is(errC, io.EOF) || goerrors.Is(errC, io.ErrClosedPipe) || goerrors.Is(errC, context.Canceled) {
 			err = nil
 		}
 	}
@@ -253,11 +251,7 @@ out:
 		errors.LogInfo(ctx, err.Error())
 		common.Interrupt(link.Writer)
 	} else {
-		if errC != nil && goerrors.Is(errC, io.ErrClosedPipe) {
+		common.Close(link.Writer)
-			common.Interrupt(link.Writer)
-		} else {
-			common.Close(link.Writer)
-		}
 	}
 	common.Interrupt(link.Reader)
 }

app/reverse/bridge.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"time"
 
-	"github.com/xtls/xray-core/app/dispatcher"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/mux"
 	"github.com/xtls/xray-core/common/net"
@@ -149,23 +148,25 @@ func (w *BridgeWorker) Connections() uint32 {
 }
 
 func (w *BridgeWorker) handleInternalConn(link *transport.Link) {
-	reader := link.Reader
+	go func() {
-	for {
+		reader := link.Reader
-		mb, err := reader.ReadMultiBuffer()
+		for {
-		if err != nil {
+			mb, err := reader.ReadMultiBuffer()
-			break
+			if err != nil {
-		}
-		for _, b := range mb {
-			var ctl Control
-			if err := proto.Unmarshal(b.Bytes(), &ctl); err != nil {
-				errors.LogInfoInner(context.Background(), err, "failed to parse proto message")
 				break
 			}
-			if ctl.State != w.state {
+			for _, b := range mb {
-				w.state = ctl.State
+				var ctl Control
+				if err := proto.Unmarshal(b.Bytes(), &ctl); err != nil {
+					errors.LogInfoInner(context.Background(), err, "failed to parse proto message")
+					break
+				}
+				if ctl.State != w.state {
+					w.state = ctl.State
+				}
 			}
 		}
-	}
+	}()
 }
 
 func (w *BridgeWorker) Dispatch(ctx context.Context, dest net.Destination) (*transport.Link, error) {
@@ -180,7 +181,7 @@ func (w *BridgeWorker) Dispatch(ctx context.Context, dest net.Destination) (*tra
 	uplinkReader, uplinkWriter := pipe.New(opt...)
 	downlinkReader, downlinkWriter := pipe.New(opt...)
 
-	go w.handleInternalConn(&transport.Link{
+	w.handleInternalConn(&transport.Link{
 		Reader: downlinkReader,
 		Writer: uplinkWriter,
 	})
@@ -199,7 +200,6 @@ func (w *BridgeWorker) DispatchLink(ctx context.Context, dest net.Destination, l
 		return w.dispatcher.DispatchLink(ctx, dest, link)
 	}
 
-	link = w.dispatcher.(*dispatcher.DefaultDispatcher).WrapLink(ctx, link)
 	w.handleInternalConn(link)
 
 	return nil

common/buf/buffer.go

@@ -15,6 +15,8 @@ const (
 
 var ErrBufferFull = errors.New("buffer is full")
 
+var zero = [Size * 10]byte{0}
+
 var pool = bytespool.GetPool(Size)
 
 // ownership represents the data owner of the buffer.
@@ -144,7 +146,7 @@ func (b *Buffer) Bytes() []byte {
 }
 
 // Extend increases the buffer size by n bytes, and returns the extended part.
-// It panics if result size is larger than size of this buffer.
+// It panics if result size is larger than buf.Size.
 func (b *Buffer) Extend(n int32) []byte {
 	end := b.end + n
 	if end > int32(len(b.v)) {
@@ -152,7 +154,7 @@ func (b *Buffer) Extend(n int32) []byte {
 	}
 	ext := b.v[b.end:end]
 	b.end = end
-	clear(ext)
+	copy(ext, zero[:])
 	return ext
 }
 
@@ -215,7 +217,7 @@ func (b *Buffer) Resize(from, to int32) {
 	b.start += from
 	b.Check()
 	if b.end > oldEnd {
-		clear(b.v[oldEnd:b.end])
+		copy(b.v[oldEnd:b.end], zero[:])
 	}
 }
 

common/buf/io.go

@@ -24,59 +24,9 @@ var ErrReadTimeout = errors.New("IO timeout")
 
 // TimeoutReader is a reader that returns error if Read() operation takes longer than the given timeout.
 type TimeoutReader interface {
-	Reader
 	ReadMultiBufferTimeout(time.Duration) (MultiBuffer, error)
 }
 
-type TimeoutWrapperReader struct {
-	Reader
-	stats.Counter
-	mb   MultiBuffer
-	err  error
-	done chan struct{}
-}
-
-func (r *TimeoutWrapperReader) ReadMultiBuffer() (MultiBuffer, error) {
-	if r.done != nil {
-		<-r.done
-		r.done = nil
-		if r.Counter != nil {
-			r.Counter.Add(int64(r.mb.Len()))
-		}
-		return r.mb, r.err
-	}
-	r.mb, r.err = r.Reader.ReadMultiBuffer()
-	if r.Counter != nil {
-		r.Counter.Add(int64(r.mb.Len()))
-	}
-	return r.mb, r.err
-}
-
-func (r *TimeoutWrapperReader) ReadMultiBufferTimeout(duration time.Duration) (MultiBuffer, error) {
-	if r.done == nil {
-		r.done = make(chan struct{})
-		go func() {
-			r.mb, r.err = r.Reader.ReadMultiBuffer()
-			close(r.done)
-		}()
-	}
-	timeout := make(chan struct{})
-	go func() {
-		time.Sleep(duration)
-		close(timeout)
-	}()
-	select {
-	case <-r.done:
-		r.done = nil
-		if r.Counter != nil {
-			r.Counter.Add(int64(r.mb.Len()))
-		}
-		return r.mb, r.err
-	case <-timeout:
-		return nil, nil
-	}
-}
-
 // Writer extends io.Writer with MultiBuffer.
 type Writer interface {
 	// WriteMultiBuffer writes a MultiBuffer into underlying writer.

common/buf/writer.go

@@ -75,10 +75,9 @@ func (w *BufferToBytesWriter) ReadFrom(reader io.Reader) (int64, error) {
 // BufferedWriter is a Writer with internal buffer.
 type BufferedWriter struct {
 	sync.Mutex
-	writer    Writer
+	writer   Writer
-	buffer    *Buffer
+	buffer   *Buffer
-	buffered  bool
+	buffered bool
-	flushNext bool
 }
 
 // NewBufferedWriter creates a new BufferedWriter.
@@ -162,12 +161,6 @@ func (w *BufferedWriter) WriteMultiBuffer(b MultiBuffer) error {
 		}
 	}
 
-	if w.flushNext {
-		w.buffered = false
-		w.flushNext = false
-		return w.flushInternal()
-	}
-
 	return nil
 }
 
@@ -208,13 +201,6 @@ func (w *BufferedWriter) SetBuffered(f bool) error {
 	return nil
 }
 
-// SetFlushNext will wait the next WriteMultiBuffer to flush and set buffered = false
-func (w *BufferedWriter) SetFlushNext() {
-	w.Lock()
-	defer w.Unlock()
-	w.flushNext = true
-}
-
 // ReadFrom implements io.ReaderFrom.
 func (w *BufferedWriter) ReadFrom(reader io.Reader) (int64, error) {
 	if err := w.SetBuffered(false); err != nil {

common/common.go

@@ -7,7 +7,6 @@ import (
 	"go/build"
 	"os"
 	"path/filepath"
-	"reflect"
 	"strings"
 
 	"github.com/xtls/xray-core/common/errors"
@@ -154,14 +153,3 @@ func GetModuleName(pathToProjectRoot string) (string, error) {
 	}
 	return moduleName, fmt.Errorf("no `go.mod` file in every parent directory of `%s`", pathToProjectRoot)
 }
-
-// CloseIfExists call obj.Close() if obj is not nil.
-func CloseIfExists(obj any) error {
-	if obj != nil {
-		v := reflect.ValueOf(obj)
-		if !v.IsNil() {
-			return Close(obj)
-		}
-	}
-	return nil
-}

common/crypto/crypto.go

@@ -10,9 +10,6 @@ func RandBetween(from int64, to int64) int64 {
 	if from == to {
 		return from
 	}
-	if from > to {
-		from, to = to, from
-	}
 	bigInt, _ := rand.Int(rand.Reader, big.NewInt(to-from))
 	return from + bigInt.Int64()
 }

common/mux/client.go

@@ -2,7 +2,6 @@ package mux
 
 import (
 	"context"
-	goerrors "errors"
 	"io"
 	"sync"
 	"time"
@@ -155,11 +154,8 @@ func (f *DialingWorkerFactory) Create() (*ClientWorker, error) {
 		ctx := session.ContextWithOutbounds(context.Background(), outbounds)
 		ctx, cancel := context.WithCancel(ctx)
 
-		if errP := p.Process(ctx, &transport.Link{Reader: uplinkReader, Writer: downlinkWriter}, d); errP != nil {
+		if err := p.Process(ctx, &transport.Link{Reader: uplinkReader, Writer: downlinkWriter}, d); err != nil {
-			errC := errors.Cause(errP)
+			errors.LogInfoInner(ctx, err, "failed to handler mux client connection")
-			if !(goerrors.Is(errC, io.EOF) || goerrors.Is(errC, io.ErrClosedPipe) || goerrors.Is(errC, context.Canceled)) {
-				errors.LogInfoInner(ctx, errP, "failed to handler mux client connection")
-			}
 		}
 		common.Must(c.Close())
 		cancel()
@@ -226,7 +222,7 @@ func (m *ClientWorker) monitor() {
 		select {
 		case <-m.done.Wait():
 			m.sessionManager.Close()
-			common.Interrupt(m.link.Writer)
+			common.Close(m.link.Writer)
 			common.Interrupt(m.link.Reader)
 			return
 		case <-m.timer.C:
@@ -251,7 +247,7 @@ func writeFirstPayload(reader buf.Reader, writer *Writer) error {
 	return nil
 }
 
-func fetchInput(ctx context.Context, s *Session, output buf.Writer, timer *time.Ticker) {
+func fetchInput(ctx context.Context, s *Session, output buf.Writer) {
 	outbounds := session.OutboundsFromContext(ctx)
 	ob := outbounds[len(outbounds)-1]
 	transferType := protocol.TransferTypeStream
@@ -262,7 +258,6 @@ func fetchInput(ctx context.Context, s *Session, output buf.Writer, timer *time.
 	writer := NewWriter(s.ID, ob.Target, output, transferType, xudp.GetGlobalID(ctx))
 	defer s.Close(false)
 	defer writer.Close()
-	defer timer.Reset(time.Second * 16)
 
 	errors.LogInfo(ctx, "dispatching request to ", ob.Target)
 	if err := writeFirstPayload(s.input, writer); err != nil {
@@ -312,11 +307,7 @@ func (m *ClientWorker) Dispatch(ctx context.Context, link *transport.Link) bool
 	}
 	s.input = link.Reader
 	s.output = link.Writer
-	if _, ok := link.Reader.(*pipe.Reader); ok {
+	go fetchInput(ctx, s, m.link.Writer)
-		go fetchInput(ctx, s, m.link.Writer, m.timer)
-	} else {
-		fetchInput(ctx, s, m.link.Writer, m.timer)
-	}
 	return true
 }
 

common/mux/server.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"io"
 
-	"github.com/xtls/xray-core/app/dispatcher"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/errors"
@@ -62,7 +61,6 @@ func (s *Server) DispatchLink(ctx context.Context, dest net.Destination, link *t
 	if dest.Address != muxCoolAddress {
 		return s.dispatcher.DispatchLink(ctx, dest, link)
 	}
-	link = s.dispatcher.(*dispatcher.DefaultDispatcher).WrapLink(ctx, link)
 	_, err := NewServerWorker(ctx, s.dispatcher, link)
 	return err
 }
@@ -89,14 +87,7 @@ func NewServerWorker(ctx context.Context, d routing.Dispatcher, link *transport.
 		link:           link,
 		sessionManager: NewSessionManager(),
 	}
-	if inbound := session.InboundFromContext(ctx); inbound != nil {
+	go worker.run(ctx)
-		inbound.CanSpliceCopy = 3
-	}
-	if _, ok := link.Reader.(*pipe.Reader); ok {
-		go worker.run(ctx)
-	} else {
-		worker.run(ctx)
-	}
 	return worker, nil
 }
 
@@ -320,8 +311,8 @@ func (w *ServerWorker) run(ctx context.Context) {
 	reader := &buf.BufferedReader{Reader: w.link.Reader}
 
 	defer w.sessionManager.Close()
+	defer common.Close(w.link.Writer)
 	defer common.Interrupt(w.link.Reader)
-	defer common.Interrupt(w.link.Writer)
 
 	for {
 		select {

common/protocol/headers.go

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

common/protocol/http/client.go

@@ -1,34 +0,0 @@
-package http
-
-import (
-	"context"
-	gohttp "net/http"
-
-	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/transport/internet"
-)
-
-// NewClient creates an HTTP client with with internal dialer and using the given sockopt.
-// sockopt can only have one or empty.
-func NewClient(sockopt ...*internet.SocketConfig) *gohttp.Client {
-	var Sockopt *internet.SocketConfig
-	switch len(sockopt) {
-	case 0:
-	case 1:
-		Sockopt = sockopt[0]
-	default:
-		panic("sockopt can only be nil or have one")
-	}
-	httpClient := &gohttp.Client{
-		Transport: &gohttp.Transport{
-			DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
-				dest, err := net.ParseDestination(network + ":" + addr)
-				if err != nil {
-					return nil, err
-				}
-				return internet.DialSystem(ctx, dest, Sockopt)
-			},
-		},
-	}
-	return httpClient
-}

common/signal/timer.go

@@ -3,7 +3,6 @@ package signal
 import (
 	"context"
 	"sync"
-	"sync/atomic"
 	"time"
 
 	"github.com/xtls/xray-core/common"
@@ -15,12 +14,11 @@ type ActivityUpdater interface {
 }
 
 type ActivityTimer struct {
-	mu        sync.RWMutex
+	sync.RWMutex
-	updated   chan struct{}
+	updated    chan struct{}
-	checkTask *task.Periodic
+	checkTask  *task.Periodic
-	onTimeout func()
+	onTimeout  func()
-	consumed  atomic.Bool
+	overridden bool
-	once      sync.Once
 }
 
 func (t *ActivityTimer) Update() {
@@ -34,45 +32,62 @@ func (t *ActivityTimer) check() error {
 	select {
 	case <-t.updated:
 	default:
-		t.finish()
+		t.finish(false)
 	}
 	return nil
 }
 
-func (t *ActivityTimer) finish() {
+func (t *ActivityTimer) finish(locked bool) {
-	t.once.Do(func() {
+	if !locked {
-		t.consumed.Store(true)
+		t.Lock()
-		t.mu.Lock()
+		defer t.Unlock()
-		defer t.mu.Unlock()
+	}
 
-		common.CloseIfExists(t.checkTask)
+	if t.onTimeout != nil {
 		t.onTimeout()
-	})
+		t.onTimeout = nil
+	}
+	if t.checkTask != nil {
+		t.checkTask.Close()
+		t.checkTask = nil
+	}
 }
 
-func (t *ActivityTimer) SetTimeout(timeout time.Duration) {
+func (t *ActivityTimer) setTimeout(timeout time.Duration) {
-	if t.consumed.Load() {
+	if t.onTimeout == nil {
 		return
 	}
 	if timeout == 0 {
-		t.finish()
+		t.finish(true)
 		return
 	}
 
-	t.mu.Lock()
+	checkTask := &task.Periodic{
-	defer t.mu.Unlock()
-	// double check, just in case
-	if t.consumed.Load() {
-		return
-	}
-	newCheckTask := &task.Periodic{
 		Interval: timeout,
 		Execute:  t.check,
 	}
-	common.CloseIfExists(t.checkTask)
+
-	t.checkTask = newCheckTask
+	if t.checkTask != nil {
+		t.checkTask.Close()
+		t.overridden = true
+	}
+	t.checkTask = checkTask
 	t.Update()
-	common.Must(newCheckTask.Start())
+	common.Must(checkTask.Start())
+}
+
+func (t *ActivityTimer) SetTimeout(timeout time.Duration) {
+	t.Lock()
+	t.setTimeout(timeout)
+	t.Unlock()
+}
+
+func (t *ActivityTimer) SetTimeoutIfNotOverridden(timeout time.Duration) {
+	t.Lock()
+	if !t.overridden {
+		t.setTimeout(timeout)
+	}
+	t.Unlock()
 }
 
 func CancelAfterInactivity(ctx context.Context, cancel context.CancelFunc, timeout time.Duration) *ActivityTimer {

core/core.go

@@ -18,8 +18,8 @@ import (
 
 var (
 	Version_x byte = 25
-	Version_y byte = 9
+	Version_y byte = 8
-	Version_z byte = 5
+	Version_z byte = 3
 )
 
 var (

go.mod

@@ -16,10 +16,10 @@ require (
 	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 v1.11.1
+	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 v0.0.0-20250828044527-046fad5ab64f
+	github.com/xtls/reality v0.0.0-20250725142056-5b52a03d4fb7
 	go4.org/netipx v0.0.0-20231129151722-fdeea329fbba
 	golang.org/x/crypto v0.41.0
 	golang.org/x/net v0.43.0

go.sum

@@ -67,16 +67,16 @@ github.com/seiflotfy/cuckoofilter v0.0.0-20240715131351-a2f2c23f1771 h1:emzAzMZ1
 github.com/seiflotfy/cuckoofilter v0.0.0-20240715131351-a2f2c23f1771/go.mod h1:bR6DqgcAl1zTcOX8/pE2Qkj9XO00eCNqmKb7lXP8EAg=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
+github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
-github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
+github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 github.com/v2fly/ss-bloomring v0.0.0-20210312155135-28617310f63e h1:5QefA066A1tF8gHIiADmOVOV5LS43gt3ONnlEl3xkwI=
 github.com/v2fly/ss-bloomring v0.0.0-20210312155135-28617310f63e/go.mod h1:5t19P9LBIrNamL6AcMQOncg/r10y3Pc01AbHeMhwlpU=
 github.com/vishvananda/netlink v1.3.1 h1:3AEMt62VKqz90r0tmNhog0r/PpWKmrEShJU0wJW6bV0=
 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 v0.0.0-20250828044527-046fad5ab64f h1:o1Kryl9qEYYzNep9RId9DM1kBn8tBrcK5UJnti/l0NI=
+github.com/xtls/reality v0.0.0-20250725142056-5b52a03d4fb7 h1:Ript0vN+nSO33+Vj4n0mgNY5M+oOxFQJdrJ1VnwTBO0=
-github.com/xtls/reality v0.0.0-20250828044527-046fad5ab64f/go.mod h1:XxvnCCgBee4WWE0bc4E+a7wbk8gkJ/rS0vNVNtC5qp0=
+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=

infra/conf/vless.go

@@ -1,7 +1,6 @@
 package conf
 
 import (
-	"encoding/base64"
 	"encoding/json"
 	"path/filepath"
 	"runtime"
@@ -74,67 +73,17 @@ func (c *VLessInboundConfig) Build() (proto.Message, error) {
 		}
 
 		if account.Encryption != "" {
-			return nil, errors.New(`VLESS clients: "encryption" should not be in inbound settings`)
+			return nil, errors.New(`VLESS clients: "encryption" should not in inbound settings`)
 		}
 
 		user.Account = serial.ToTypedMessage(account)
 		config.Clients[idx] = user
 	}
 
+	if c.Decryption != "none" {
+		return nil, errors.New(`VLESS settings: please add/set "decryption":"none" to every settings`)
+	}
 	config.Decryption = c.Decryption
-	if !func() bool {
-		s := strings.Split(config.Decryption, ".")
-		if len(s) < 4 || s[0] != "mlkem768x25519plus" {
-			return false
-		}
-		switch s[1] {
-		case "native":
-		case "xorpub":
-			config.XorMode = 1
-		case "random":
-			config.XorMode = 2
-		default:
-			return false
-		}
-		t := strings.SplitN(strings.TrimSuffix(s[2], "s"), "-", 2)
-		i, err := strconv.Atoi(t[0])
-		if err != nil {
-			return false
-		}
-		config.SecondsFrom = int64(i)
-		if len(t) == 2 {
-			i, err := strconv.Atoi(t[1])
-			if err != nil {
-				return false
-			}
-			config.SecondsTo = int64(i)
-		}
-		padding := 0
-		for _, r := range s[3:] {
-			if len(r) < 20 {
-				padding += len(r) + 1
-				continue
-			}
-			if b, _ := base64.RawURLEncoding.DecodeString(r); len(b) != 32 && len(b) != 64 {
-				return false
-			}
-		}
-		config.Decryption = config.Decryption[27+len(s[2]):]
-		if padding > 0 {
-			config.Padding = config.Decryption[:padding-1]
-			config.Decryption = config.Decryption[padding:]
-		}
-		return true
-	}() && config.Decryption != "none" {
-		if config.Decryption == "" {
-			return nil, errors.New(`VLESS settings: please add/set "decryption":"none" to every settings`)
-		}
-		return nil, errors.New(`VLESS settings: unsupported "decryption": ` + config.Decryption)
-	}
-
-	if config.Decryption != "none" && c.Fallbacks != nil {
-		return nil, errors.New(`VLESS settings: "fallbacks" can not be used together with "decryption"`)
-	}
 
 	for _, fb := range c.Fallbacks {
 		var i uint16
@@ -206,16 +155,16 @@ type VLessOutboundConfig struct {
 func (c *VLessOutboundConfig) Build() (proto.Message, error) {
 	config := new(outbound.Config)
 
-	if len(c.Vnext) != 1 {
+	if len(c.Vnext) == 0 {
-		return nil, errors.New(`VLESS settings: "vnext" should have one and only one member`)
+		return nil, errors.New(`VLESS settings: "vnext" is empty`)
 	}
 	config.Vnext = make([]*protocol.ServerEndpoint, len(c.Vnext))
 	for idx, rec := range c.Vnext {
 		if rec.Address == nil {
 			return nil, errors.New(`VLESS vnext: "address" is not set`)
 		}
-		if len(rec.Users) != 1 {
+		if len(rec.Users) == 0 {
-			return nil, errors.New(`VLESS vnext: "users" should have one and only one member`)
+			return nil, errors.New(`VLESS vnext: "users" is empty`)
 		}
 		spec := &protocol.ServerEndpoint{
 			Address: rec.Address.Build(),
@@ -244,48 +193,8 @@ func (c *VLessOutboundConfig) Build() (proto.Message, error) {
 				return nil, errors.New(`VLESS users: "flow" doesn't support "` + account.Flow + `" in this version`)
 			}
 
-			if !func() bool {
+			if account.Encryption != "none" {
-				s := strings.Split(account.Encryption, ".")
+				return nil, errors.New(`VLESS users: please add/set "encryption":"none" for every user`)
-				if len(s) < 4 || s[0] != "mlkem768x25519plus" {
-					return false
-				}
-				switch s[1] {
-				case "native":
-				case "xorpub":
-					account.XorMode = 1
-				case "random":
-					account.XorMode = 2
-				default:
-					return false
-				}
-				switch s[2] {
-				case "1rtt":
-				case "0rtt":
-					account.Seconds = 1
-				default:
-					return false
-				}
-				padding := 0
-				for _, r := range s[3:] {
-					if len(r) < 20 {
-						padding += len(r) + 1
-						continue
-					}
-					if b, _ := base64.RawURLEncoding.DecodeString(r); len(b) != 32 && len(b) != 1184 {
-						return false
-					}
-				}
-				account.Encryption = account.Encryption[27+len(s[2]):]
-				if padding > 0 {
-					account.Padding = account.Encryption[:padding-1]
-					account.Encryption = account.Encryption[padding:]
-				}
-				return true
-			}() && account.Encryption != "none" {
-				if account.Encryption == "" {
-					return nil, errors.New(`VLESS users: please add/set "encryption":"none" for every user`)
-				}
-				return nil, errors.New(`VLESS users: unsupported "encryption": ` + account.Encryption)
 			}
 
 			user.Account = serial.ToTypedMessage(account)

main/commands/all/commands.go

@@ -17,7 +17,5 @@ func init() {
 		cmdX25519,
 		cmdWG,
 		cmdMLDSA65,
-		cmdMLKEM768,
-		cmdVLESSEnc,
 	)
 }

main/commands/all/convert/protobuf.go

@@ -3,7 +3,6 @@ package convert
 import (
 	"fmt"
 	"os"
-	"strings"
 
 	"github.com/xtls/xray-core/common/cmdarg"
 	creflect "github.com/xtls/xray-core/common/reflect"
@@ -15,18 +14,15 @@ import (
 
 var cmdProtobuf = &base.Command{
 	CustomFlags: true,
-	UsageLine:   "{{.Exec}} convert pb [-outpbfile file] [-debug] [-type] [json file] [json file] ...",
+	UsageLine:   "{{.Exec}} convert pb [-debug] [-type] [json file] [json file] ...",
 	Short:       "Convert multiple json configs to protobuf",
 	Long: `
-Convert multiple configs to ProtoBuf. JSON, YAML and TOML can be used.
+Convert multiple json configs to protobuf.
 
 Arguments:
 
-	-o file, -outpbfile file
-		Write the ProtoBuf output (eg. mix.pb) to specified file location.
-
 	-d, -debug
-		Show mix.pb as JSON format.
+		Show mix.pb as json.
 		FOR DEBUGGING ONLY!
 		DO NOT PASS THIS OUTPUT TO XRAY-CORE!
 
@@ -35,20 +31,16 @@ Arguments:
 
 Examples:
 
-    {{.Exec}} convert pb -outpbfile output.pb config.json c1.json c2.json c3.json
+    {{.Exec}} convert pb config.json c1.json c2.json c3.json > mix.pb
-    {{.Exec}} convert pb -debug mix.pb
 	`,
 	Run: executeConvertConfigsToProtobuf,
 }
 
 func executeConvertConfigsToProtobuf(cmd *base.Command, args []string) {
 
-	var optFile string
 	var optDump bool
 	var optType bool
 
-	cmd.Flag.StringVar(&optFile, "o", "", "")
-	cmd.Flag.StringVar(&optFile, "outpbfile", "", "")
 	cmd.Flag.BoolVar(&optDump, "d", false, "")
 	cmd.Flag.BoolVar(&optDump, "debug", false, "")
 	cmd.Flag.BoolVar(&optType, "t", false, "")
@@ -60,17 +52,6 @@ func executeConvertConfigsToProtobuf(cmd *base.Command, args []string) {
 		unnamedArgs.Set(v)
 	}
 
-	if len(optFile) > 0 {
-		switch core.GetFormatByExtension(getFileExtension(optFile)){
-		case "protobuf", "":
-			fmt.Println("Output ProtoBuf file is ", optFile)
-		default:
-			base.Fatalf("-outpbfile followed by a possible original config.")
-		}
-	} else if !optDump {
-		base.Fatalf("-outpbfile not specified")
-	}
-
 	if len(unnamedArgs) < 1 {
 		base.Fatalf("invalid config list length: %d", len(unnamedArgs))
 	}
@@ -89,28 +70,12 @@ func executeConvertConfigsToProtobuf(cmd *base.Command, args []string) {
 		}
 	}
 
-	if len(optFile) > 0 {
+	bytesConfig, err := proto.Marshal(pbConfig)
-		bytesConfig, err := proto.Marshal(pbConfig)
+	if err != nil {
-		if err != nil {
+		base.Fatalf("failed to marshal proto config: %s", err)
-			base.Fatalf("failed to marshal proto config: %s", err)
+	}
-		}
 
-		f, err := os.Create(optFile)
+	if _, err := os.Stdout.Write(bytesConfig); err != nil {
-		if err != nil {
+		base.Fatalf("failed to write proto config: %s", err)
-			base.Fatalf("failed to create proto file: %s", err)
-		}
-		defer f.Close()
-
-		if _, err := f.Write(bytesConfig); err != nil {
-			base.Fatalf("failed to write proto file: %s", err)
-		}
 	}
 }
-
-func getFileExtension(filename string) string {
-	idx := strings.LastIndexByte(filename, '.')
-	if idx == -1 {
-		return ""
-	}
-	return filename[idx+1:]
-}

main/commands/all/curve25519.go

@@ -1,15 +1,17 @@
 package all
 
 import (
-	"crypto/ecdh"
 	"crypto/rand"
 	"encoding/base64"
 	"fmt"
 
-	"lukechampine.com/blake3"
+	"golang.org/x/crypto/curve25519"
 )
 
 func Curve25519Genkey(StdEncoding bool, input_base64 string) {
+	var output string
+	var err error
+	var privateKey, publicKey []byte
 	var encoding *base64.Encoding
 	if *input_stdEncoding || StdEncoding {
 		encoding = base64.StdEncoding
@@ -17,47 +19,40 @@ func Curve25519Genkey(StdEncoding bool, input_base64 string) {
 		encoding = base64.RawURLEncoding
 	}
 
-	var privateKey []byte
 	if len(input_base64) > 0 {
-		privateKey, _ = encoding.DecodeString(input_base64)
+		privateKey, err = encoding.DecodeString(input_base64)
-		if len(privateKey) != 32 {
+		if err != nil {
-			fmt.Println("Invalid length of X25519 private key.")
+			output = err.Error()
-			return
+			goto out
+		}
+		if len(privateKey) != curve25519.ScalarSize {
+			output = "Invalid length of private key."
+			goto out
 		}
 	}
-	privateKey, password, hash32, err := genCurve25519(privateKey)
-	if err != nil {
-		fmt.Println(err)
-		return
-	}
-	fmt.Printf("PrivateKey: %v\nPassword: %v\nHash32: %v\n",
-		encoding.EncodeToString(privateKey),
-		encoding.EncodeToString(password),
-		encoding.EncodeToString(hash32[:]))
-}
 
-func genCurve25519(inputPrivateKey []byte) (privateKey []byte, password []byte, hash32 [32]byte, returnErr error) {
-	if len(inputPrivateKey) > 0 {
-		privateKey = inputPrivateKey
-	}
 	if privateKey == nil {
-		privateKey = make([]byte, 32)
+		privateKey = make([]byte, curve25519.ScalarSize)
-		rand.Read(privateKey)
+		if _, err = rand.Read(privateKey); err != nil {
+			output = err.Error()
+			goto out
+		}
 	}
 
 	// Modify random bytes using algorithm described at:
-	// https://cr.yp.to/ecdh.html
+	// https://cr.yp.to/ecdh.html.
-	// (Just to make sure printing the real private key)
 	privateKey[0] &= 248
 	privateKey[31] &= 127
 	privateKey[31] |= 64
 
-	key, err := ecdh.X25519().NewPrivateKey(privateKey)
+	if publicKey, err = curve25519.X25519(privateKey, curve25519.Basepoint); err != nil {
-	if err != nil {
+		output = err.Error()
-		returnErr = err
+		goto out
-		return
 	}
-	password = key.PublicKey().Bytes()
+
-	hash32 = blake3.Sum256(password)
+	output = fmt.Sprintf("Private key: %v\nPublic key: %v",
-	return
+		encoding.EncodeToString(privateKey),
+		encoding.EncodeToString(publicKey))
+out:
+	fmt.Println(output)
 }

main/commands/all/mldsa65.go

@@ -11,9 +11,9 @@ import (
 
 var cmdMLDSA65 = &base.Command{
 	UsageLine: `{{.Exec}} mldsa65 [-i "seed (base64.RawURLEncoding)"]`,
-	Short:     `Generate key pair for ML-DSA-65 post-quantum signature (REALITY)`,
+	Short:     `Generate key pair for ML-DSA-65 post-quantum signature`,
 	Long: `
-Generate key pair for ML-DSA-65 post-quantum signature (REALITY).
+Generate key pair for ML-DSA-65 post-quantum signature.
 
 Random: {{.Exec}} mldsa65
 
@@ -25,22 +25,18 @@ func init() {
 	cmdMLDSA65.Run = executeMLDSA65 // break init loop
 }
 
-var input_mldsa65 = cmdMLDSA65.Flag.String("i", "", "")
+var input_seed = cmdMLDSA65.Flag.String("i", "", "")
 
 func executeMLDSA65(cmd *base.Command, args []string) {
 	var seed [32]byte
-	if len(*input_mldsa65) > 0 {
+	if len(*input_seed) > 0 {
-		s, _ := base64.RawURLEncoding.DecodeString(*input_mldsa65)
+		s, _ := base64.RawURLEncoding.DecodeString(*input_seed)
-		if len(s) != 32 {
-			fmt.Println("Invalid length of ML-DSA-65 seed.")
-			return
-		}
 		seed = [32]byte(s)
 	} else {
 		rand.Read(seed[:])
 	}
 	pub, _ := mldsa65.NewKeyFromSeed(&seed)
-	fmt.Printf("Seed: %v\nVerify: %v\n",
+	fmt.Printf("Seed: %v\nVerify: %v",
 		base64.RawURLEncoding.EncodeToString(seed[:]),
 		base64.RawURLEncoding.EncodeToString(pub.Bytes()))
 }

main/commands/all/mlkem768.go

@@ -1,60 +0,0 @@
-package all
-
-import (
-	"crypto/mlkem"
-	"crypto/rand"
-	"encoding/base64"
-	"fmt"
-
-	"github.com/xtls/xray-core/main/commands/base"
-	"lukechampine.com/blake3"
-)
-
-var cmdMLKEM768 = &base.Command{
-	UsageLine: `{{.Exec}} mlkem768 [-i "seed (base64.RawURLEncoding)"]`,
-	Short:     `Generate key pair for ML-KEM-768 post-quantum key exchange (VLESS Encryption)`,
-	Long: `
-Generate key pair for ML-KEM-768 post-quantum key exchange (VLESS Encryption).
-
-Random: {{.Exec}} mlkem768
-
-From seed: {{.Exec}} mlkem768 -i "seed (base64.RawURLEncoding)"
-`,
-}
-
-func init() {
-	cmdMLKEM768.Run = executeMLKEM768 // break init loop
-}
-
-var input_mlkem768 = cmdMLKEM768.Flag.String("i", "", "")
-
-func executeMLKEM768(cmd *base.Command, args []string) {
-	var seed [64]byte
-	if len(*input_mlkem768) > 0 {
-		s, _ := base64.RawURLEncoding.DecodeString(*input_mlkem768)
-		if len(s) != 64 {
-			fmt.Println("Invalid length of ML-KEM-768 seed.")
-			return
-		}
-		seed = [64]byte(s)
-	} else {
-		rand.Read(seed[:])
-	}
-	seed, client, hash32 := genMLKEM768(&seed)
-	fmt.Printf("Seed: %v\nClient: %v\nHash32: %v\n",
-		base64.RawURLEncoding.EncodeToString(seed[:]),
-		base64.RawURLEncoding.EncodeToString(client),
-		base64.RawURLEncoding.EncodeToString(hash32[:]))
-}
-
-func genMLKEM768(inputSeed *[64]byte) (seed [64]byte, client []byte, hash32 [32]byte) {
-	if inputSeed == nil {
-		rand.Read(seed[:])
-	} else {
-		seed = *inputSeed
-	}
-	key, _ := mlkem.NewDecapsulationKey768(seed[:])
-	client = key.EncapsulationKey().Bytes()
-	hash32 = blake3.Sum256(client)
-	return
-}

main/commands/all/uuid.go

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

main/commands/all/vlessenc.go

@@ -1,41 +0,0 @@
-package all
-
-import (
-	"encoding/base64"
-	"fmt"
-	"strings"
-
-	"github.com/xtls/xray-core/main/commands/base"
-)
-
-var cmdVLESSEnc = &base.Command{
-	UsageLine: `{{.Exec}} vlessenc`,
-	Short:     `Generate decryption/encryption json pair (VLESS Encryption)`,
-	Long: `
-Generate decryption/encryption json pair (VLESS Encryption).
-`,
-}
-
-func init() {
-	cmdVLESSEnc.Run = executeVLESSEnc // break init loop
-}
-
-func executeVLESSEnc(cmd *base.Command, args []string) {
-	privateKey, password, _, _ := genCurve25519(nil)
-	serverKey := base64.RawURLEncoding.EncodeToString(privateKey)
-	clientKey := base64.RawURLEncoding.EncodeToString(password)
-	decryption := generateDotConfig("mlkem768x25519plus", "native", "600s", serverKey)
-	encryption := generateDotConfig("mlkem768x25519plus", "native", "0rtt", clientKey)
-	seed, client, _ := genMLKEM768(nil)
-	serverKeyPQ := base64.RawURLEncoding.EncodeToString(seed[:])
-	clientKeyPQ := base64.RawURLEncoding.EncodeToString(client)
-	decryptionPQ := generateDotConfig("mlkem768x25519plus", "native", "600s", serverKeyPQ)
-	encryptionPQ := generateDotConfig("mlkem768x25519plus", "native", "0rtt", clientKeyPQ)
-	fmt.Printf("Choose one Authentication to use, do not mix them. Ephemeral key exchange is Post-Quantum safe anyway.\n\n")
-	fmt.Printf("Authentication: X25519, not Post-Quantum\n\"decryption\": \"%v\"\n\"encryption\": \"%v\"\n\n", decryption, encryption)
-	fmt.Printf("Authentication: ML-KEM-768, Post-Quantum\n\"decryption\": \"%v\"\n\"encryption\": \"%v\"\n", decryptionPQ, encryptionPQ)
-}
-
-func generateDotConfig(fields ...string) string {
-	return strings.Join(fields, ".")
-}

main/commands/all/wg.go

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

main/commands/all/x25519.go

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

main/run.go

@@ -182,15 +182,12 @@ func getConfigFilePath(verbose bool) cmdarg.Arg {
 	}
 
 	if workingDir, err := os.Getwd(); err == nil {
-		suffixes := []string{".json", ".jsonc", ".toml", ".yaml", ".yml"}
+		configFile := filepath.Join(workingDir, "config.json")
-		for _, suffix := range suffixes {
+		if fileExists(configFile) {
-			configFile := filepath.Join(workingDir, "config"+suffix)
+			if verbose {
-			if fileExists(configFile) {
+				log.Println("Using default config: ", configFile)
-				if verbose {
-					log.Println("Using default config: ", configFile)
-				}
-				return cmdarg.Arg{configFile}
 			}
+			return cmdarg.Arg{configFile}
 		}
 	}
 

proxy/dns/dns.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	go_errors "errors"
 	"io"
-	"strings"
 	"sync"
 	"time"
 
@@ -169,15 +168,11 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, d internet.
 	}
 
 	ctx, cancel := context.WithCancel(ctx)
-	terminate := func() {
+	timer := signal.CancelAfterInactivity(ctx, cancel, h.timeout)
-		cancel()
-		conn.Close()
-	}
-	timer := signal.CancelAfterInactivity(ctx, terminate, h.timeout)
-	defer timer.SetTimeout(0)
 
 	request := func() error {
-		defer timer.SetTimeout(0)
+		defer conn.Close()
+
 		for {
 			b, err := reader.ReadMessage()
 			if err == io.EOF {
@@ -195,33 +190,24 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, d internet.
 				if len(h.blockTypes) > 0 {
 					for _, blocktype := range h.blockTypes {
 						if blocktype == int32(qType) {
-							b.Release()
-							errors.LogInfo(ctx, "blocked type ", qType, " query for domain ", domain)
 							if h.nonIPQuery == "reject" {
-								err := h.rejectNonIPQuery(id, qType, domain, writer)
+								go h.rejectNonIPQuery(id, qType, domain, writer)
-								if err != nil {
-									return err
-								}
 							}
+							errors.LogInfo(ctx, "blocked type ", qType, " query for domain ", domain)
 							return nil
 						}
 					}
 				}
 				if isIPQuery {
-					b.Release()
+					go h.handleIPQuery(id, qType, domain, writer)
-					go h.handleIPQuery(id, qType, domain, writer, timer)
-					continue
 				}
-				if h.nonIPQuery == "drop" {
+				if isIPQuery || h.nonIPQuery == "drop" {
 					b.Release()
 					continue
 				}
 				if h.nonIPQuery == "reject" {
+					go h.rejectNonIPQuery(id, qType, domain, writer)
 					b.Release()
-					err := h.rejectNonIPQuery(id, qType, domain, writer)
-					if err != nil {
-						return err
-					}
 					continue
 				}
 			}
@@ -233,7 +219,6 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, d internet.
 	}
 
 	response := func() error {
-		defer timer.SetTimeout(0)
 		for {
 			b, err := connReader.ReadMessage()
 			if err == io.EOF {
@@ -259,7 +244,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, d internet.
 	return nil
 }
 
-func (h *Handler) handleIPQuery(id uint16, qType dnsmessage.Type, domain string, writer dns_proto.MessageWriter, timer *signal.ActivityTimer) {
+func (h *Handler) handleIPQuery(id uint16, qType dnsmessage.Type, domain string, writer dns_proto.MessageWriter) {
 	var ips []net.IP
 	var err error
 
@@ -334,21 +319,16 @@ func (h *Handler) handleIPQuery(id uint16, qType dnsmessage.Type, domain string,
 	if err != nil {
 		errors.LogInfoInner(context.Background(), err, "pack message")
 		b.Release()
-		timer.SetTimeout(0)
+		return
 	}
 	b.Resize(0, int32(len(msgBytes)))
 
 	if err := writer.WriteMessage(b); err != nil {
 		errors.LogInfoInner(context.Background(), err, "write IP answer")
-		timer.SetTimeout(0)
 	}
 }
 
-func (h *Handler) rejectNonIPQuery(id uint16, qType dnsmessage.Type, domain string, writer dns_proto.MessageWriter) error {
+func (h *Handler) rejectNonIPQuery(id uint16, qType dnsmessage.Type, domain string, writer dns_proto.MessageWriter) {
-	domainT := strings.TrimSuffix(domain, ".")
-	if domainT == "" {
-		return errors.New("empty domain name")
-	}
 	b := buf.New()
 	rawBytes := b.Extend(buf.Size)
 	builder := dnsmessage.NewBuilder(rawBytes[:0], dnsmessage.Header{
@@ -369,22 +349,20 @@ func (h *Handler) rejectNonIPQuery(id uint16, qType dnsmessage.Type, domain stri
 	if err != nil {
 		errors.LogInfo(context.Background(), "unexpected domain ", domain, " when building reject message: ", err)
 		b.Release()
-		return err
+		return
 	}
 
 	msgBytes, err := builder.Finish()
 	if err != nil {
 		errors.LogInfoInner(context.Background(), err, "pack reject message")
 		b.Release()
-		return err
+		return
 	}
 	b.Resize(0, int32(len(msgBytes)))
 
 	if err := writer.WriteMessage(b); err != nil {
 		errors.LogInfoInner(context.Background(), err, "write reject answer")
-		return err
 	}
-	return nil
 }
 
 type outboundConn struct {
@@ -393,7 +371,6 @@ type outboundConn struct {
 
 	conn      net.Conn
 	connReady chan struct{}
-	closed    bool
 }
 
 func (c *outboundConn) dial() error {
@@ -408,16 +385,12 @@ func (c *outboundConn) dial() error {
 
 func (c *outboundConn) Write(b []byte) (int, error) {
 	c.access.Lock()
-	if c.closed {
-		c.access.Unlock()
-		return 0, errors.New("outbound connection closed")
-	}
 
 	if c.conn == nil {
 		if err := c.dial(); err != nil {
 			c.access.Unlock()
 			errors.LogWarningInner(context.Background(), err, "failed to dial outbound connection")
-			return 0, err
+			return len(b), nil
 		}
 	}
 
@@ -427,27 +400,24 @@ func (c *outboundConn) Write(b []byte) (int, error) {
 }
 
 func (c *outboundConn) Read(b []byte) (int, error) {
+	var conn net.Conn
 	c.access.Lock()
-	if c.closed {
+	conn = c.conn
-		c.access.Unlock()
+	c.access.Unlock()
-		return 0, io.EOF
-	}
 
-	if c.conn == nil {
+	if conn == nil {
-		c.access.Unlock()
 		_, open := <-c.connReady
 		if !open {
 			return 0, io.EOF
 		}
-		return c.conn.Read(b)
+		conn = c.conn
 	}
-	c.access.Unlock()
+
-	return c.conn.Read(b)
+	return conn.Read(b)
 }
 
 func (c *outboundConn) Close() error {
 	c.access.Lock()
-	c.closed = true
 	close(c.connReady)
 	if c.conn != nil {
 		c.conn.Close()

proxy/dokodemo/dokodemo.go

@@ -2,8 +2,10 @@ package dokodemo
 
 import (
 	"context"
+	"runtime"
 	"strconv"
 	"strings"
+	"sync/atomic"
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
@@ -12,10 +14,11 @@ import (
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol"
 	"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/core"
 	"github.com/xtls/xray-core/features/policy"
 	"github.com/xtls/xray-core/features/routing"
-	"github.com/xtls/xray-core/transport"
 	"github.com/xtls/xray-core/transport/internet/stat"
 	"github.com/xtls/xray-core/transport/internet/tls"
 )
@@ -141,11 +144,39 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn st
 	})
 	errors.LogInfo(ctx, "received request for ", conn.RemoteAddr())
 
-	var reader buf.Reader
+	plcy := d.policy()
-	if dest.Network == net.Network_TCP {
+	ctx, cancel := context.WithCancel(ctx)
-		reader = buf.NewReader(conn)
+	timer := signal.CancelAfterInactivity(ctx, cancel, plcy.Timeouts.ConnectionIdle)
-	} else {
+
-		reader = buf.NewPacketReader(conn)
+	if inbound != nil {
+		inbound.Timer = timer
+	}
+
+	ctx = policy.ContextWithBufferPolicy(ctx, plcy.Buffer)
+	link, err := dispatcher.Dispatch(ctx, dest)
+	if err != nil {
+		return errors.New("failed to dispatch request").Base(err)
+	}
+
+	requestCount := int32(1)
+	requestDone := func() error {
+		defer func() {
+			if atomic.AddInt32(&requestCount, -1) == 0 {
+				timer.SetTimeout(plcy.Timeouts.DownlinkOnly)
+			}
+		}()
+
+		var reader buf.Reader
+		if dest.Network == net.Network_UDP {
+			reader = buf.NewPacketReader(conn)
+		} else {
+			reader = buf.NewReader(conn)
+		}
+		if err := buf.Copy(reader, link.Writer, buf.UpdateActivity(timer)); err != nil {
+			return errors.New("failed to transport request").Base(err)
+		}
+
+		return nil
 	}
 
 	var writer buf.Writer
@@ -177,17 +208,72 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn st
 				return err
 			}
 			writer = NewPacketWriter(pConn, &dest, mark, back)
-			defer writer.(*PacketWriter).Close() // close fake UDP conns
+			defer func() {
+				runtime.Gosched()
+				common.Interrupt(link.Reader) // maybe duplicated
+				runtime.Gosched()
+				writer.(*PacketWriter).Close() // close fake UDP conns
+			}()
+			/*
+				sockopt := &internet.SocketConfig{
+					Tproxy: internet.SocketConfig_TProxy,
+				}
+				if dest.Address.Family().IsIP() {
+					sockopt.BindAddress = dest.Address.IP()
+					sockopt.BindPort = uint32(dest.Port)
+				}
+				if d.sockopt != nil {
+					sockopt.Mark = d.sockopt.Mark
+				}
+				tConn, err := internet.DialSystem(ctx, net.DestinationFromAddr(conn.RemoteAddr()), sockopt)
+				if err != nil {
+					return err
+				}
+				defer tConn.Close()
+
+				writer = &buf.SequentialWriter{Writer: tConn}
+				tReader := buf.NewPacketReader(tConn)
+				requestCount++
+				tproxyRequest = func() error {
+					defer func() {
+						if atomic.AddInt32(&requestCount, -1) == 0 {
+							timer.SetTimeout(plcy.Timeouts.DownlinkOnly)
+						}
+					}()
+					if err := buf.Copy(tReader, link.Writer, buf.UpdateActivity(timer)); err != nil {
+						return errors.New("failed to transport request (TPROXY conn)").Base(err)
+					}
+					return nil
+				}
+			*/
 		}
 	}
 
-	if err := dispatcher.DispatchLink(ctx, dest, &transport.Link{
+	responseDone := func() error {
-		Reader: reader,
+		defer timer.SetTimeout(plcy.Timeouts.UplinkOnly)
-		Writer: writer},
+
-	); err != nil {
+		if network == net.Network_UDP && destinationOverridden {
-		return errors.New("failed to dispatch request").Base(err)
+			buf.Copy(link.Reader, writer) // respect upload's timeout
+			return nil
+		}
+
+		if err := buf.Copy(link.Reader, writer, buf.UpdateActivity(timer)); err != nil {
+			return errors.New("failed to transport response").Base(err)
+		}
+		return nil
 	}
-	return nil // Unlike Dispatch(), DispatchLink() will not return until the outbound finishes Process()
+
+	if err := task.Run(ctx,
+		task.OnSuccess(func() error { return task.Run(ctx, requestDone) }, task.Close(link.Writer)),
+		responseDone); err != nil {
+		runtime.Gosched()
+		common.Interrupt(link.Writer)
+		runtime.Gosched()
+		common.Interrupt(link.Reader)
+		return errors.New("connection ends").Base(err)
+	}
+
+	return nil
 }
 
 func NewPacketWriter(conn net.PacketConn, d *net.Destination, mark int, back *net.UDPAddr) buf.Writer {

proxy/freedom/freedom.go

@@ -26,6 +26,7 @@ import (
 	"github.com/xtls/xray-core/transport"
 	"github.com/xtls/xray-core/transport/internet"
 	"github.com/xtls/xray-core/transport/internet/stat"
+	"github.com/xtls/xray-core/transport/internet/tls"
 )
 
 var useSplice bool
@@ -72,7 +73,7 @@ func isValidAddress(addr *net.IPOrDomain) bool {
 	}
 
 	a := addr.AsAddress()
-	return a != net.AnyIP && a != net.AnyIPv6
+	return a != net.AnyIP
 }
 
 // Process implements proxy.Outbound.
@@ -211,14 +212,16 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 
 	responseDone := func() error {
 		defer timer.SetTimeout(plcy.Timeouts.UplinkOnly)
-		if destination.Network == net.Network_TCP && useSplice && proxy.IsRAWTransportWithoutSecurity(conn) { // it would be tls conn in special use case of MITM, we need to let link handle traffic
+		if destination.Network == net.Network_TCP {
 			var writeConn net.Conn
 			var inTimer *signal.ActivityTimer
-			if inbound := session.InboundFromContext(ctx); inbound != nil && inbound.Conn != nil {
+			if inbound := session.InboundFromContext(ctx); inbound != nil && inbound.Conn != nil && useSplice {
 				writeConn = inbound.Conn
 				inTimer = inbound.Timer
 			}
-			return proxy.CopyRawConnIfExist(ctx, conn, writeConn, link.Writer, timer, inTimer)
+			if !isTLSConn(conn) { // it would be tls conn in special use case of MITM, we need to let link handle traffic
+				return proxy.CopyRawConnIfExist(ctx, conn, writeConn, link.Writer, timer, inTimer)
+			}
 		}
 		var reader buf.Reader
 		if destination.Network == net.Network_TCP {
@@ -243,6 +246,22 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 	return nil
 }
 
+func isTLSConn(conn stat.Connection) bool {
+	if conn != nil {
+		statConn, ok := conn.(*stat.CounterConnection)
+		if ok {
+			conn = statConn.Connection
+		}
+		if _, ok := conn.(*tls.Conn); ok {
+			return true
+		}
+		if _, ok := conn.(*tls.UConn); ok {
+			return true
+		}
+	}
+	return false
+}
+
 func NewPacketReader(conn net.Conn, UDPOverride net.Destination, DialDest net.Destination) buf.Reader {
 	iConn := conn
 	statConn, ok := iConn.(*stat.CounterConnection)
@@ -399,7 +418,7 @@ func (w *PacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
 					}
 				}
 			}
-			destAddr := b.UDP.RawNetAddr()
+			destAddr, _ := net.ResolveUDPAddr("udp", b.UDP.NetAddr())
 			if destAddr == nil {
 				b.Release()
 				continue

proxy/http/server.go

@@ -18,12 +18,11 @@ import (
 	"github.com/xtls/xray-core/common/protocol"
 	http_proto "github.com/xtls/xray-core/common/protocol/http"
 	"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/core"
 	"github.com/xtls/xray-core/features/policy"
 	"github.com/xtls/xray-core/features/routing"
-	"github.com/xtls/xray-core/proxy"
-	"github.com/xtls/xray-core/transport"
 	"github.com/xtls/xray-core/transport/internet/stat"
 )
 
@@ -96,9 +95,6 @@ func (s *Server) ProcessWithFirstbyte(ctx context.Context, network net.Network,
 	inbound.User = &protocol.MemoryUser{
 		Level: s.config.UserLevel,
 	}
-	if !proxy.IsRAWTransportWithoutSecurity(conn) {
-		inbound.CanSpliceCopy = 3
-	}
 	var reader *bufio.Reader
 	if len(firstbyte) > 0 {
 		readerWithoutFirstbyte := bufio.NewReaderSize(readerOnly{conn}, buf.Size)
@@ -173,31 +169,62 @@ Start:
 	return err
 }
 
-func (s *Server) handleConnect(ctx context.Context, _ *http.Request, buffer *bufio.Reader, conn stat.Connection, dest net.Destination, dispatcher routing.Dispatcher, inbound *session.Inbound) error {
+func (s *Server) handleConnect(ctx context.Context, _ *http.Request, reader *bufio.Reader, conn stat.Connection, dest net.Destination, dispatcher routing.Dispatcher, inbound *session.Inbound) error {
 	_, err := conn.Write([]byte("HTTP/1.1 200 Connection established\r\n\r\n"))
 	if err != nil {
 		return errors.New("failed to write back OK response").Base(err)
 	}
 
-	reader := buf.NewReader(conn)
+	plcy := s.policy()
-	if buffer.Buffered() > 0 {
+	ctx, cancel := context.WithCancel(ctx)
-		payload, err := buf.ReadFrom(io.LimitReader(buffer, int64(buffer.Buffered())))
+	timer := signal.CancelAfterInactivity(ctx, cancel, plcy.Timeouts.ConnectionIdle)
+
+	if inbound != nil {
+		inbound.Timer = timer
+	}
+
+	ctx = policy.ContextWithBufferPolicy(ctx, plcy.Buffer)
+	link, err := dispatcher.Dispatch(ctx, dest)
+	if err != nil {
+		return err
+	}
+
+	if reader.Buffered() > 0 {
+		payload, err := buf.ReadFrom(io.LimitReader(reader, int64(reader.Buffered())))
 		if err != nil {
 			return err
 		}
-		reader = &buf.BufferedReader{Reader: reader, Buffer: payload}
+		if err := link.Writer.WriteMultiBuffer(payload); err != nil {
-		buffer = nil
+			return err
+		}
+		reader = nil
 	}
 
-	if inbound.CanSpliceCopy == 2 {
+	requestDone := func() error {
+		defer timer.SetTimeout(plcy.Timeouts.DownlinkOnly)
+
+		return buf.Copy(buf.NewReader(conn), link.Writer, buf.UpdateActivity(timer))
+	}
+
+	responseDone := func() error {
 		inbound.CanSpliceCopy = 1
+		defer timer.SetTimeout(plcy.Timeouts.UplinkOnly)
+
+		v2writer := buf.NewWriter(conn)
+		if err := buf.Copy(link.Reader, v2writer, buf.UpdateActivity(timer)); err != nil {
+			return err
+		}
+
+		return nil
 	}
-	if err := dispatcher.DispatchLink(ctx, dest, &transport.Link{
+
-		Reader: reader,
+	closeWriter := task.OnSuccess(requestDone, task.Close(link.Writer))
-		Writer: buf.NewWriter(conn)},
+	if err := task.Run(ctx, closeWriter, responseDone); err != nil {
-	); err != nil {
+		common.Interrupt(link.Reader)
-		return errors.New("failed to dispatch request").Base(err)
+		common.Interrupt(link.Writer)
+		return errors.New("connection ends").Base(err)
 	}
+
 	return nil
 }
 

proxy/proxy.go

@@ -25,7 +25,6 @@ import (
 	"github.com/xtls/xray-core/common/signal"
 	"github.com/xtls/xray-core/features/routing"
 	"github.com/xtls/xray-core/features/stats"
-	"github.com/xtls/xray-core/proxy/vless/encryption"
 	"github.com/xtls/xray-core/transport"
 	"github.com/xtls/xray-core/transport/internet"
 	"github.com/xtls/xray-core/transport/internet/reality"
@@ -177,108 +176,62 @@ type VisionReader struct {
 	trafficState *TrafficState
 	ctx          context.Context
 	isUplink     bool
-	conn         net.Conn
-	input        *bytes.Reader
-	rawInput     *bytes.Buffer
-	ob           *session.Outbound
-
-	// internal
-	directReadCounter stats.Counter
 }
 
-func NewVisionReader(reader buf.Reader, trafficState *TrafficState, isUplink bool, ctx context.Context, conn net.Conn, input *bytes.Reader, rawInput *bytes.Buffer, ob *session.Outbound) *VisionReader {
+func NewVisionReader(reader buf.Reader, state *TrafficState, isUplink bool, context context.Context) *VisionReader {
 	return &VisionReader{
 		Reader:       reader,
-		trafficState: trafficState,
+		trafficState: state,
-		ctx:          ctx,
+		ctx:          context,
 		isUplink:     isUplink,
-		conn:         conn,
-		input:        input,
-		rawInput:     rawInput,
-		ob:           ob,
 	}
 }
 
 func (w *VisionReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
 	buffer, err := w.Reader.ReadMultiBuffer()
-	if buffer.IsEmpty() {
+	if !buffer.IsEmpty() {
-		return buffer, err
+		var withinPaddingBuffers *bool
-	}
+		var remainingContent *int32
-
+		var remainingPadding *int32
-	var withinPaddingBuffers *bool
+		var currentCommand *int
-	var remainingContent *int32
+		var switchToDirectCopy *bool
-	var remainingPadding *int32
+		if w.isUplink {
-	var currentCommand *int
+			withinPaddingBuffers = &w.trafficState.Inbound.WithinPaddingBuffers
-	var switchToDirectCopy *bool
+			remainingContent = &w.trafficState.Inbound.RemainingContent
-	if w.isUplink {
+			remainingPadding = &w.trafficState.Inbound.RemainingPadding
-		withinPaddingBuffers = &w.trafficState.Inbound.WithinPaddingBuffers
+			currentCommand = &w.trafficState.Inbound.CurrentCommand
-		remainingContent = &w.trafficState.Inbound.RemainingContent
+			switchToDirectCopy = &w.trafficState.Inbound.UplinkReaderDirectCopy
-		remainingPadding = &w.trafficState.Inbound.RemainingPadding
-		currentCommand = &w.trafficState.Inbound.CurrentCommand
-		switchToDirectCopy = &w.trafficState.Inbound.UplinkReaderDirectCopy
-	} else {
-		withinPaddingBuffers = &w.trafficState.Outbound.WithinPaddingBuffers
-		remainingContent = &w.trafficState.Outbound.RemainingContent
-		remainingPadding = &w.trafficState.Outbound.RemainingPadding
-		currentCommand = &w.trafficState.Outbound.CurrentCommand
-		switchToDirectCopy = &w.trafficState.Outbound.DownlinkReaderDirectCopy
-	}
-
-	if *switchToDirectCopy {
-		if w.directReadCounter != nil {
-			w.directReadCounter.Add(int64(buffer.Len()))
-		}
-		return buffer, err
-	}
-
-	if *withinPaddingBuffers || w.trafficState.NumberOfPacketToFilter > 0 {
-		mb2 := make(buf.MultiBuffer, 0, len(buffer))
-		for _, b := range buffer {
-			newbuffer := XtlsUnpadding(b, w.trafficState, w.isUplink, w.ctx)
-			if newbuffer.Len() > 0 {
-				mb2 = append(mb2, newbuffer)
-			}
-		}
-		buffer = mb2
-		if *remainingContent > 0 || *remainingPadding > 0 || *currentCommand == 0 {
-			*withinPaddingBuffers = true
-		} else if *currentCommand == 1 {
-			*withinPaddingBuffers = false
-		} else if *currentCommand == 2 {
-			*withinPaddingBuffers = false
-			*switchToDirectCopy = true
 		} else {
-			errors.LogInfo(w.ctx, "XtlsRead unknown command ", *currentCommand, buffer.Len())
+			withinPaddingBuffers = &w.trafficState.Outbound.WithinPaddingBuffers
+			remainingContent = &w.trafficState.Outbound.RemainingContent
+			remainingPadding = &w.trafficState.Outbound.RemainingPadding
+			currentCommand = &w.trafficState.Outbound.CurrentCommand
+			switchToDirectCopy = &w.trafficState.Outbound.DownlinkReaderDirectCopy
 		}
-	}
-	if w.trafficState.NumberOfPacketToFilter > 0 {
-		XtlsFilterTls(buffer, w.trafficState, w.ctx)
-	}
 
-	if *switchToDirectCopy {
+		if *withinPaddingBuffers || w.trafficState.NumberOfPacketToFilter > 0 {
-		// XTLS Vision processes TLS-like conn's input and rawInput
+			mb2 := make(buf.MultiBuffer, 0, len(buffer))
-		if inputBuffer, err := buf.ReadFrom(w.input); err == nil && !inputBuffer.IsEmpty() {
+			for _, b := range buffer {
-			buffer, _ = buf.MergeMulti(buffer, inputBuffer)
+				newbuffer := XtlsUnpadding(b, w.trafficState, w.isUplink, w.ctx)
-		}
+				if newbuffer.Len() > 0 {
-		if rawInputBuffer, err := buf.ReadFrom(w.rawInput); err == nil && !rawInputBuffer.IsEmpty() {
+					mb2 = append(mb2, newbuffer)
-			buffer, _ = buf.MergeMulti(buffer, rawInputBuffer)
+				}
-		}
-		*w.input = bytes.Reader{} // release memory
-		w.input = nil
-		*w.rawInput = bytes.Buffer{} // release memory
-		w.rawInput = nil
-
-		if inbound := session.InboundFromContext(w.ctx); inbound != nil && inbound.Conn != nil {
-			if w.isUplink && inbound.CanSpliceCopy == 2 {
-				inbound.CanSpliceCopy = 1
 			}
-			if !w.isUplink && w.ob != nil && w.ob.CanSpliceCopy == 2 { // ob need to be passed in due to context can have more than one ob
+			buffer = mb2
-				w.ob.CanSpliceCopy = 1
+			if *remainingContent > 0 || *remainingPadding > 0 || *currentCommand == 0 {
+				*withinPaddingBuffers = true
+			} else if *currentCommand == 1 {
+				*withinPaddingBuffers = false
+			} else if *currentCommand == 2 {
+				*withinPaddingBuffers = false
+				*switchToDirectCopy = true
+			} else {
+				errors.LogInfo(w.ctx, "XtlsRead unknown command ", *currentCommand, buffer.Len())
 			}
 		}
-		readerConn, readCounter, _ := UnwrapRawConn(w.conn)
+		if w.trafficState.NumberOfPacketToFilter > 0 {
-		w.directReadCounter = readCounter
+			XtlsFilterTls(buffer, w.trafficState, w.ctx)
-		w.Reader = buf.NewReader(readerConn)
+		}
 	}
 	return buffer, err
 }
@@ -287,32 +240,28 @@ func (w *VisionReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
 // Note Vision probably only make sense as the inner most layer of writer, since it need assess traffic state from origin proxy traffic
 type VisionWriter struct {
 	buf.Writer
-	trafficState *TrafficState
+	trafficState      *TrafficState
-	ctx          context.Context
+	ctx               context.Context
-	isUplink     bool
+	writeOnceUserUUID []byte
-	conn         net.Conn
+	isUplink          bool
-	ob           *session.Outbound
-
-	// internal
-	writeOnceUserUUID  []byte
-	directWriteCounter stats.Counter
 }
 
-func NewVisionWriter(writer buf.Writer, trafficState *TrafficState, isUplink bool, ctx context.Context, conn net.Conn, ob *session.Outbound) *VisionWriter {
+func NewVisionWriter(writer buf.Writer, state *TrafficState, isUplink bool, context context.Context) *VisionWriter {
-	w := make([]byte, len(trafficState.UserUUID))
+	w := make([]byte, len(state.UserUUID))
-	copy(w, trafficState.UserUUID)
+	copy(w, state.UserUUID)
 	return &VisionWriter{
 		Writer:            writer,
-		trafficState:      trafficState,
+		trafficState:      state,
-		ctx:               ctx,
+		ctx:               context,
 		writeOnceUserUUID: w,
 		isUplink:          isUplink,
-		conn:              conn,
-		ob:                ob,
 	}
 }
 
 func (w *VisionWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
+	if w.trafficState.NumberOfPacketToFilter > 0 {
+		XtlsFilterTls(mb, w.trafficState, w.ctx)
+	}
 	var isPadding *bool
 	var switchToDirectCopy *bool
 	if w.isUplink {
@@ -322,29 +271,6 @@ func (w *VisionWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
 		isPadding = &w.trafficState.Inbound.IsPadding
 		switchToDirectCopy = &w.trafficState.Inbound.DownlinkWriterDirectCopy
 	}
-
-	if *switchToDirectCopy {
-		if inbound := session.InboundFromContext(w.ctx); inbound != nil {
-			if !w.isUplink && inbound.CanSpliceCopy == 2 {
-				inbound.CanSpliceCopy = 1
-			}
-			if w.isUplink && w.ob != nil && w.ob.CanSpliceCopy == 2 {
-				w.ob.CanSpliceCopy = 1
-			}
-		}
-		rawConn, _, writerCounter := UnwrapRawConn(w.conn)
-		w.Writer = buf.NewWriter(rawConn)
-		w.directWriteCounter = writerCounter
-		*switchToDirectCopy = false
-	}
-	if !mb.IsEmpty() && w.directWriteCounter != nil {
-		w.directWriteCounter.Add(int64(mb.Len()))
-	}
-
-	if w.trafficState.NumberOfPacketToFilter > 0 {
-		XtlsFilterTls(mb, w.trafficState, w.ctx)
-	}
-
 	if *isPadding {
 		if len(mb) == 1 && mb[0] == nil {
 			mb[0] = XtlsPadding(nil, CommandPaddingContinue, &w.writeOnceUserUUID, true, w.ctx) // we do a long padding to hide vless header
@@ -598,33 +524,24 @@ func XtlsFilterTls(buffer buf.MultiBuffer, trafficState *TrafficState, ctx conte
 	}
 }
 
-// UnwrapRawConn support unwrap encryption, stats, tls, utls, reality, proxyproto, uds-wrapper conn and get raw tcp/uds conn from it
+// UnwrapRawConn support unwrap stats, tls, utls, reality, proxyproto, uds-wrapper conn and get raw tcp/uds conn from it
 func UnwrapRawConn(conn net.Conn) (net.Conn, stats.Counter, stats.Counter) {
 	var readCounter, writerCounter stats.Counter
 	if conn != nil {
-		isEncryption := false
+		statConn, ok := conn.(*stat.CounterConnection)
-		if commonConn, ok := conn.(*encryption.CommonConn); ok {
+		if ok {
-			conn = commonConn.Conn
-			isEncryption = true
-		}
-		if xorConn, ok := conn.(*encryption.XorConn); ok {
-			return xorConn, nil, nil // full-random xorConn should not be penetrated
-		}
-		if statConn, ok := conn.(*stat.CounterConnection); ok {
 			conn = statConn.Connection
 			readCounter = statConn.ReadCounter
 			writerCounter = statConn.WriteCounter
 		}
-		if !isEncryption { // avoids double penetration
+		if xc, ok := conn.(*tls.Conn); ok {
-			if xc, ok := conn.(*tls.Conn); ok {
+			conn = xc.NetConn()
-				conn = xc.NetConn()
+		} else if utlsConn, ok := conn.(*tls.UConn); ok {
-			} else if utlsConn, ok := conn.(*tls.UConn); ok {
+			conn = utlsConn.NetConn()
-				conn = utlsConn.NetConn()
+		} else if realityConn, ok := conn.(*reality.Conn); ok {
-			} else if realityConn, ok := conn.(*reality.Conn); ok {
+			conn = realityConn.NetConn()
-				conn = realityConn.NetConn()
+		} else if realityUConn, ok := conn.(*reality.UConn); ok {
-			} else if realityUConn, ok := conn.(*reality.UConn); ok {
+			conn = realityUConn.NetConn()
-				conn = realityUConn.NetConn()
-			}
 		}
 		if pc, ok := conn.(*proxyproto.Conn); ok {
 			conn = pc.Raw()
@@ -678,10 +595,10 @@ func CopyRawConnIfExist(ctx context.Context, readerConn net.Conn, writerConn net
 			errors.LogInfo(ctx, "CopyRawConn splice")
 			statWriter, _ := writer.(*dispatcher.SizeStatWriter)
 			//runtime.Gosched() // necessary
-			time.Sleep(time.Millisecond)    // without this, there will be a rare ssl error for freedom splice
+			time.Sleep(time.Millisecond)                    // without this, there will be a rare ssl error for freedom splice
-			timer.SetTimeout(8 * time.Hour) // prevent leak, just in case
+			timer.SetTimeoutIfNotOverridden(24 * time.Hour) // prevent leak, just in case
 			if inTimer != nil {
-				inTimer.SetTimeout(8 * time.Hour)
+				inTimer.SetTimeoutIfNotOverridden(24 * time.Hour)
 			}
 			w, err := tc.ReadFrom(readerConn)
 			if readCounter != nil {
@@ -709,29 +626,15 @@ func CopyRawConnIfExist(ctx context.Context, readerConn net.Conn, writerConn net
 			}
 		}
 		if err != nil {
-			if errors.Cause(err) == io.EOF {
-				return nil
-			}
 			return err
 		}
 	}
 }
 
 func readV(ctx context.Context, reader buf.Reader, writer buf.Writer, timer signal.ActivityUpdater, readCounter stats.Counter) error {
-	errors.LogInfo(ctx, "CopyRawConn (maybe) readv")
+	errors.LogInfo(ctx, "CopyRawConn readv")
 	if err := buf.Copy(reader, writer, buf.UpdateActivity(timer), buf.AddToStatCounter(readCounter)); err != nil {
 		return errors.New("failed to process response").Base(err)
 	}
 	return nil
 }
-
-func IsRAWTransportWithoutSecurity(conn stat.Connection) bool {
-	iConn := conn
-	if statConn, ok := iConn.(*stat.CounterConnection); ok {
-		iConn = statConn.Connection
-	}
-	_, ok1 := iConn.(*proxyproto.Conn)
-	_, ok2 := iConn.(*net.TCPConn)
-	_, ok3 := iConn.(*internet.UnixConnWrapper)
-	return ok1 || ok2 || ok3
-}

proxy/shadowsocks/server.go

@@ -104,12 +104,12 @@ func (s *Server) Process(ctx context.Context, network net.Network, conn stat.Con
 func (s *Server) handleUDPPayload(ctx context.Context, conn stat.Connection, dispatcher routing.Dispatcher) error {
 	udpServer := udp.NewDispatcher(dispatcher, func(ctx context.Context, packet *udp_proto.Packet) {
 		request := protocol.RequestHeaderFromContext(ctx)
-		payload := packet.Payload
 		if request == nil {
-			payload.Release()
 			return
 		}
 
+		payload := packet.Payload
+
 		if payload.UDP != nil {
 			request = &protocol.RequestHeader{
 				User:    request.User,
@@ -124,9 +124,9 @@ func (s *Server) handleUDPPayload(ctx context.Context, conn stat.Connection, dis
 			errors.LogWarningInner(ctx, err, "failed to encode UDP packet")
 			return
 		}
+		defer data.Release()
 
 		conn.Write(data.Bytes())
-		data.Release()
 	})
 	defer udpServer.RemoveRay()
 

proxy/socks/server.go

@@ -14,12 +14,12 @@ import (
 	"github.com/xtls/xray-core/common/protocol"
 	udp_proto "github.com/xtls/xray-core/common/protocol/udp"
 	"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/core"
 	"github.com/xtls/xray-core/features/policy"
 	"github.com/xtls/xray-core/features/routing"
-	"github.com/xtls/xray-core/proxy"
 	"github.com/xtls/xray-core/proxy/http"
-	"github.com/xtls/xray-core/transport"
 	"github.com/xtls/xray-core/transport/internet/stat"
 	"github.com/xtls/xray-core/transport/internet/udp"
 )
@@ -75,9 +75,6 @@ func (s *Server) Process(ctx context.Context, network net.Network, conn stat.Con
 	inbound.User = &protocol.MemoryUser{
 		Level: s.config.UserLevel,
 	}
-	if !proxy.IsRAWTransportWithoutSecurity(conn) {
-		inbound.CanSpliceCopy = 3
-	}
 
 	switch network {
 	case net.Network_TCP:
@@ -157,16 +154,8 @@ func (s *Server) processTCP(ctx context.Context, conn stat.Connection, dispatche
 				Reason: "",
 			})
 		}
-		if inbound.CanSpliceCopy == 2 {
+
-			inbound.CanSpliceCopy = 1
+		return s.transport(ctx, reader, conn, dest, dispatcher, inbound)
-		}
-		if err := dispatcher.DispatchLink(ctx, dest, &transport.Link{
-			Reader: reader,
-			Writer: buf.NewWriter(conn)},
-		); err != nil {
-			return errors.New("failed to dispatch request").Base(err)
-		}
-		return nil
 	}
 
 	if request.Command == protocol.RequestCommandUDP {
@@ -185,6 +174,52 @@ func (*Server) handleUDP(c io.Reader) error {
 	return common.Error2(io.Copy(buf.DiscardBytes, c))
 }
 
+func (s *Server) transport(ctx context.Context, reader io.Reader, writer io.Writer, dest net.Destination, dispatcher routing.Dispatcher, inbound *session.Inbound) error {
+	ctx, cancel := context.WithCancel(ctx)
+	timer := signal.CancelAfterInactivity(ctx, cancel, s.policy().Timeouts.ConnectionIdle)
+
+	if inbound != nil {
+		inbound.Timer = timer
+	}
+
+	plcy := s.policy()
+	ctx = policy.ContextWithBufferPolicy(ctx, plcy.Buffer)
+	link, err := dispatcher.Dispatch(ctx, dest)
+	if err != nil {
+		return err
+	}
+
+	requestDone := func() error {
+		defer timer.SetTimeout(plcy.Timeouts.DownlinkOnly)
+		if err := buf.Copy(buf.NewReader(reader), link.Writer, buf.UpdateActivity(timer)); err != nil {
+			return errors.New("failed to transport all TCP request").Base(err)
+		}
+
+		return nil
+	}
+
+	responseDone := func() error {
+		inbound.CanSpliceCopy = 1
+		defer timer.SetTimeout(plcy.Timeouts.UplinkOnly)
+
+		v2writer := buf.NewWriter(writer)
+		if err := buf.Copy(link.Reader, v2writer, buf.UpdateActivity(timer)); err != nil {
+			return errors.New("failed to transport all TCP response").Base(err)
+		}
+
+		return nil
+	}
+
+	requestDonePost := task.OnSuccess(requestDone, task.Close(link.Writer))
+	if err := task.Run(ctx, requestDonePost, responseDone); err != nil {
+		common.Interrupt(link.Reader)
+		common.Interrupt(link.Writer)
+		return errors.New("connection ends").Base(err)
+	}
+
+	return nil
+}
+
 func (s *Server) handleUDPPayload(ctx context.Context, conn stat.Connection, dispatcher routing.Dispatcher) error {
 	if s.udpFilter != nil && !s.udpFilter.Check(conn.RemoteAddr()) {
 		errors.LogDebug(ctx, "Unauthorized UDP access from ", conn.RemoteAddr().String())
@@ -196,7 +231,6 @@ func (s *Server) handleUDPPayload(ctx context.Context, conn stat.Connection, dis
 
 		request := protocol.RequestHeaderFromContext(ctx)
 		if request == nil {
-			payload.Release()
 			return
 		}
 
@@ -215,9 +249,9 @@ func (s *Server) handleUDPPayload(ctx context.Context, conn stat.Connection, dis
 			errors.LogWarningInner(ctx, err, "failed to write UDP response")
 			return
 		}
+		defer udpMessage.Release()
 
 		conn.Write(udpMessage.Bytes())
-		udpMessage.Release()
 	})
 	defer udpServer.RemoveRay()
 
@@ -225,6 +259,7 @@ func (s *Server) handleUDPPayload(ctx context.Context, conn stat.Connection, dis
 	if inbound != nil && inbound.Source.IsValid() {
 		errors.LogInfo(ctx, "client UDP connection from ", inbound.Source)
 	}
+	inbound.CanSpliceCopy = 1
 
 	var dest *net.Destination
 

proxy/trojan/protocol.go

@@ -113,11 +113,9 @@ func (w *PacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
 			target = b.UDP
 		}
 		if _, err := w.writePacket(b.Bytes(), *target); err != nil {
-			b.Release()
 			buf.ReleaseMulti(mb)
 			return err
 		}
-		b.Release()
 	}
 	return nil
 }

proxy/trojan/server.go

@@ -233,7 +233,7 @@ func (s *Server) Process(ctx context.Context, network net.Network, conn stat.Con
 	sessionPolicy = s.policyManager.ForLevel(user.Level)
 
 	if destination.Network == net.Network_UDP { // handle udp request
-		return s.handleUDPPayload(ctx, sessionPolicy, &PacketReader{Reader: clientReader}, &PacketWriter{Writer: conn}, dispatcher)
+		return s.handleUDPPayload(ctx, &PacketReader{Reader: clientReader}, &PacketWriter{Writer: conn}, dispatcher)
 	}
 
 	ctx = log.ContextWithAccessMessage(ctx, &log.AccessMessage{
@@ -248,11 +248,7 @@ func (s *Server) Process(ctx context.Context, network net.Network, conn stat.Con
 	return s.handleConnection(ctx, sessionPolicy, destination, clientReader, buf.NewWriter(conn), dispatcher)
 }
 
-func (s *Server) handleUDPPayload(ctx context.Context, sessionPolicy policy.Session, clientReader *PacketReader, clientWriter *PacketWriter, dispatcher routing.Dispatcher) error {
+func (s *Server) handleUDPPayload(ctx context.Context, clientReader *PacketReader, clientWriter *PacketWriter, dispatcher routing.Dispatcher) error {
-	ctx, cancel := context.WithCancel(ctx)
-	defer cancel()
-	timer := signal.CancelAfterInactivity(ctx, cancel, sessionPolicy.Timeouts.ConnectionIdle)
-	defer timer.SetTimeout(0)
 	udpServer := udp.NewDispatcher(dispatcher, func(ctx context.Context, packet *udp_proto.Packet) {
 		udpPayload := packet.Payload
 		if udpPayload.UDP == nil {
@@ -261,9 +257,6 @@ func (s *Server) handleUDPPayload(ctx context.Context, sessionPolicy policy.Sess
 
 		if err := clientWriter.WriteMultiBuffer(buf.MultiBuffer{udpPayload}); err != nil {
 			errors.LogWarningInner(ctx, err, "failed to write response")
-			cancel()
-		} else {
-			timer.Update()
 		}
 	})
 	defer udpServer.RemoveRay()
@@ -273,56 +266,47 @@ func (s *Server) handleUDPPayload(ctx context.Context, sessionPolicy policy.Sess
 
 	var dest *net.Destination
 
-	requestDone := func() error {
+	for {
-		for {
+		select {
-			select {
+		case <-ctx.Done():
-			case <-ctx.Done():
+			return nil
+		default:
+			mb, err := clientReader.ReadMultiBuffer()
+			if err != nil {
+				if errors.Cause(err) != io.EOF {
+					return errors.New("unexpected EOF").Base(err)
+				}
 				return nil
-			default:
+			}
-				mb, err := clientReader.ReadMultiBuffer()
-				if err != nil {
-					if errors.Cause(err) != io.EOF {
-						return errors.New("unexpected EOF").Base(err)
-					}
-					return nil
-				}
 
-				mb2, b := buf.SplitFirst(mb)
+			mb2, b := buf.SplitFirst(mb)
-				if b == nil {
+			if b == nil {
-					continue
+				continue
-				}
+			}
-				timer.Update()
+			destination := *b.UDP
-				destination := *b.UDP
 
-				currentPacketCtx := ctx
+			currentPacketCtx := ctx
-				if inbound.Source.IsValid() {
+			if inbound.Source.IsValid() {
-					currentPacketCtx = log.ContextWithAccessMessage(ctx, &log.AccessMessage{
+				currentPacketCtx = log.ContextWithAccessMessage(ctx, &log.AccessMessage{
-						From:   inbound.Source,
+					From:   inbound.Source,
-						To:     destination,
+					To:     destination,
-						Status: log.AccessAccepted,
+					Status: log.AccessAccepted,
-						Reason: "",
+					Reason: "",
-						Email:  user.Email,
+					Email:  user.Email,
-					})
+				})
-				}
+			}
-				errors.LogInfo(ctx, "tunnelling request to ", destination)
+			errors.LogInfo(ctx, "tunnelling request to ", destination)
 
-				if !s.cone || dest == nil {
+			if !s.cone || dest == nil {
-					dest = &destination
+				dest = &destination
-				}
+			}
 
-				udpServer.Dispatch(currentPacketCtx, *dest, b) // first packet
+			udpServer.Dispatch(currentPacketCtx, *dest, b) // first packet
-				for _, payload := range mb2 {
+			for _, payload := range mb2 {
-					udpServer.Dispatch(currentPacketCtx, *dest, payload)
+				udpServer.Dispatch(currentPacketCtx, *dest, payload)
-				}
 			}
 		}
-
 	}
-
-	if err := task.Run(ctx, requestDone); err != nil {
-		return err
-	}
-	return nil
 }
 
 func (s *Server) handleConnection(ctx context.Context, sessionPolicy policy.Session,

proxy/vless/account.go

@@ -18,9 +18,6 @@ func (a *Account) AsAccount() (protocol.Account, error) {
 		ID:         protocol.NewID(id),
 		Flow:       a.Flow,       // needs parser here?
 		Encryption: a.Encryption, // needs parser here?
-		XorMode:    a.XorMode,
-		Seconds:    a.Seconds,
-		Padding:    a.Padding,
 	}, nil
 }
 
@@ -30,11 +27,8 @@ type MemoryAccount struct {
 	ID *protocol.ID
 	// Flow of the account. May be "xtls-rprx-vision".
 	Flow string
-
+	// Encryption of the account. Used for client connections, and only accepts "none" for now.
 	Encryption string
-	XorMode    uint32
-	Seconds    uint32
-	Padding    string
 }
 
 // Equals implements protocol.Account.Equals().
@@ -51,8 +45,5 @@ func (a *MemoryAccount) ToProto() proto.Message {
 		Id:         a.ID.String(),
 		Flow:       a.Flow,
 		Encryption: a.Encryption,
-		XorMode:    a.XorMode,
-		Seconds:    a.Seconds,
-		Padding:    a.Padding,
 	}
 }

proxy/vless/account.pb.go

@@ -28,11 +28,9 @@ type Account struct {
 	// ID of the account, in the form of a UUID, e.g., "66ad4540-b58c-4ad2-9926-ea63445a9b57".
 	Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
 	// Flow settings. May be "xtls-rprx-vision".
-	Flow       string `protobuf:"bytes,2,opt,name=flow,proto3" json:"flow,omitempty"`
+	Flow string `protobuf:"bytes,2,opt,name=flow,proto3" json:"flow,omitempty"`
+	// Encryption settings. Only applies to client side, and only accepts "none" for now.
 	Encryption string `protobuf:"bytes,3,opt,name=encryption,proto3" json:"encryption,omitempty"`
-	XorMode    uint32 `protobuf:"varint,4,opt,name=xorMode,proto3" json:"xorMode,omitempty"`
-	Seconds    uint32 `protobuf:"varint,5,opt,name=seconds,proto3" json:"seconds,omitempty"`
-	Padding    string `protobuf:"bytes,6,opt,name=padding,proto3" json:"padding,omitempty"`
 }
 
 func (x *Account) Reset() {
@@ -86,49 +84,23 @@ func (x *Account) GetEncryption() string {
 	return ""
 }
 
-func (x *Account) GetXorMode() uint32 {
-	if x != nil {
-		return x.XorMode
-	}
-	return 0
-}
-
-func (x *Account) GetSeconds() uint32 {
-	if x != nil {
-		return x.Seconds
-	}
-	return 0
-}
-
-func (x *Account) GetPadding() string {
-	if x != nil {
-		return x.Padding
-	}
-	return ""
-}
-
 var File_proxy_vless_account_proto protoreflect.FileDescriptor
 
 var file_proxy_vless_account_proto_rawDesc = []byte{
 	0x0a, 0x19, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2f, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x2f, 0x61, 0x63,
 	0x63, 0x6f, 0x75, 0x6e, 0x74, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x10, 0x78, 0x72, 0x61,
-	0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x22, 0x9b, 0x01,
+	0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x22, 0x4d, 0x0a,
-	0x0a, 0x07, 0x41, 0x63, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x12, 0x0e, 0x0a, 0x02, 0x69, 0x64, 0x18,
+	0x07, 0x41, 0x63, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x12, 0x0e, 0x0a, 0x02, 0x69, 0x64, 0x18, 0x01,
-	0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x02, 0x69, 0x64, 0x12, 0x12, 0x0a, 0x04, 0x66, 0x6c, 0x6f,
+	0x20, 0x01, 0x28, 0x09, 0x52, 0x02, 0x69, 0x64, 0x12, 0x12, 0x0a, 0x04, 0x66, 0x6c, 0x6f, 0x77,
-	0x77, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x66, 0x6c, 0x6f, 0x77, 0x12, 0x1e, 0x0a,
+	0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x66, 0x6c, 0x6f, 0x77, 0x12, 0x1e, 0x0a, 0x0a,
-	0x0a, 0x65, 0x6e, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x18, 0x03, 0x20, 0x01, 0x28,
+	0x65, 0x6e, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09,
-	0x09, 0x52, 0x0a, 0x65, 0x6e, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x18, 0x0a,
+	0x52, 0x0a, 0x65, 0x6e, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x42, 0x52, 0x0a, 0x14,
-	0x07, 0x78, 0x6f, 0x72, 0x4d, 0x6f, 0x64, 0x65, 0x18, 0x04, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x07,
+	0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x76,
-	0x78, 0x6f, 0x72, 0x4d, 0x6f, 0x64, 0x65, 0x12, 0x18, 0x0a, 0x07, 0x73, 0x65, 0x63, 0x6f, 0x6e,
+	0x6c, 0x65, 0x73, 0x73, 0x50, 0x01, 0x5a, 0x25, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63,
-	0x64, 0x73, 0x18, 0x05, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x07, 0x73, 0x65, 0x63, 0x6f, 0x6e, 0x64,
+	0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72,
-	0x73, 0x12, 0x18, 0x0a, 0x07, 0x70, 0x61, 0x64, 0x64, 0x69, 0x6e, 0x67, 0x18, 0x06, 0x20, 0x01,
+	0x65, 0x2f, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2f, 0x76, 0x6c, 0x65, 0x73, 0x73, 0xaa, 0x02, 0x10,
-	0x28, 0x09, 0x52, 0x07, 0x70, 0x61, 0x64, 0x64, 0x69, 0x6e, 0x67, 0x42, 0x52, 0x0a, 0x14, 0x63,
+	0x58, 0x72, 0x61, 0x79, 0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x56, 0x6c, 0x65, 0x73, 0x73,
-	0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x76, 0x6c,
+	0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
-	0x65, 0x73, 0x73, 0x50, 0x01, 0x5a, 0x25, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f,
-	0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65,
-	0x2f, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2f, 0x76, 0x6c, 0x65, 0x73, 0x73, 0xaa, 0x02, 0x10, 0x58,
-	0x72, 0x61, 0x79, 0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x56, 0x6c, 0x65, 0x73, 0x73, 0x62,
-	0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

proxy/vless/account.proto

@@ -11,9 +11,6 @@ message Account {
   string id = 1;
   // Flow settings. May be "xtls-rprx-vision".
   string flow = 2;
-
+  // Encryption settings. Only applies to client side, and only accepts "none" for now.
   string encryption = 3;
-  uint32 xorMode = 4;
-  uint32 seconds = 5;
-  string padding = 6;
 }

proxy/vless/encoding/addons.go

@@ -3,12 +3,10 @@ package encoding
 import (
 	"context"
 	"io"
-	"net"
 
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/protocol"
-	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/proxy"
 	"github.com/xtls/xray-core/proxy/vless"
 	"google.golang.org/protobuf/proto"
@@ -63,14 +61,15 @@ func DecodeHeaderAddons(buffer *buf.Buffer, reader io.Reader) (*Addons, error) {
 }
 
 // EncodeBodyAddons returns a Writer that auto-encrypt content written by caller.
-func EncodeBodyAddons(writer buf.Writer, request *protocol.RequestHeader, requestAddons *Addons, state *proxy.TrafficState, isUplink bool, context context.Context, conn net.Conn, ob *session.Outbound) buf.Writer {
+func EncodeBodyAddons(writer io.Writer, request *protocol.RequestHeader, requestAddons *Addons, state *proxy.TrafficState, isUplink bool, context context.Context) buf.Writer {
 	if request.Command == protocol.RequestCommandUDP {
-		return NewMultiLengthPacketWriter(writer)
+		return NewMultiLengthPacketWriter(writer.(buf.Writer))
 	}
+	w := buf.NewWriter(writer)
 	if requestAddons.Flow == vless.XRV {
-		return proxy.NewVisionWriter(writer, state, isUplink, context, conn, ob)
+		w = proxy.NewVisionWriter(w, state, isUplink, context)
 	}
-	return writer
+	return w
 }
 
 // DecodeBodyAddons returns a Reader from which caller can fetch decrypted body.

proxy/vless/encoding/encoding.go

@@ -1,6 +1,7 @@
 package encoding
 
 import (
+	"bytes"
 	"context"
 	"io"
 
@@ -10,6 +11,7 @@ import (
 	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/common/signal"
+	"github.com/xtls/xray-core/features/stats"
 	"github.com/xtls/xray-core/proxy"
 	"github.com/xtls/xray-core/proxy/vless"
 )
@@ -169,8 +171,8 @@ func DecodeResponseHeader(reader io.Reader, request *protocol.RequestHeader) (*A
 	return responseAddons, nil
 }
 
-// XtlsRead can switch to splice copy
+// XtlsRead filter and read xtls protocol
-func XtlsRead(reader buf.Reader, writer buf.Writer, timer *signal.ActivityTimer, conn net.Conn, trafficState *proxy.TrafficState, isUplink bool, ctx context.Context) error {
+func XtlsRead(reader buf.Reader, writer buf.Writer, timer *signal.ActivityTimer, conn net.Conn, input *bytes.Reader, rawInput *bytes.Buffer, trafficState *proxy.TrafficState, ob *session.Outbound, isUplink bool, ctx context.Context) error {
 	err := func() error {
 		for {
 			if isUplink && trafficState.Inbound.UplinkReaderDirectCopy || !isUplink && trafficState.Outbound.DownlinkReaderDirectCopy {
@@ -179,11 +181,74 @@ func XtlsRead(reader buf.Reader, writer buf.Writer, timer *signal.ActivityTimer,
 				if inbound := session.InboundFromContext(ctx); inbound != nil && inbound.Conn != nil {
 					writerConn = inbound.Conn
 					inTimer = inbound.Timer
+					if isUplink && inbound.CanSpliceCopy == 2 {
+						inbound.CanSpliceCopy = 1
+					}
+					if !isUplink && ob != nil && ob.CanSpliceCopy == 2 { // ob need to be passed in due to context can change
+						ob.CanSpliceCopy = 1
+					}
 				}
 				return proxy.CopyRawConnIfExist(ctx, conn, writerConn, writer, timer, inTimer)
 			}
 			buffer, err := reader.ReadMultiBuffer()
 			if !buffer.IsEmpty() {
+				timer.Update()
+				if isUplink && trafficState.Inbound.UplinkReaderDirectCopy || !isUplink && trafficState.Outbound.DownlinkReaderDirectCopy {
+					// XTLS Vision processes struct TLS Conn's input and rawInput
+					if inputBuffer, err := buf.ReadFrom(input); err == nil {
+						if !inputBuffer.IsEmpty() {
+							buffer, _ = buf.MergeMulti(buffer, inputBuffer)
+						}
+					}
+					if rawInputBuffer, err := buf.ReadFrom(rawInput); err == nil {
+						if !rawInputBuffer.IsEmpty() {
+							buffer, _ = buf.MergeMulti(buffer, rawInputBuffer)
+						}
+					}
+				}
+				if werr := writer.WriteMultiBuffer(buffer); werr != nil {
+					return werr
+				}
+			}
+			if err != nil {
+				return err
+			}
+		}
+	}()
+	if err != nil && errors.Cause(err) != io.EOF {
+		return err
+	}
+	return nil
+}
+
+// XtlsWrite filter and write xtls protocol
+func XtlsWrite(reader buf.Reader, writer buf.Writer, timer signal.ActivityUpdater, conn net.Conn, trafficState *proxy.TrafficState, ob *session.Outbound, isUplink bool, ctx context.Context) error {
+	err := func() error {
+		var ct stats.Counter
+		for {
+			buffer, err := reader.ReadMultiBuffer()
+			if isUplink && trafficState.Outbound.UplinkWriterDirectCopy || !isUplink && trafficState.Inbound.DownlinkWriterDirectCopy {
+				if inbound := session.InboundFromContext(ctx); inbound != nil {
+					if !isUplink && inbound.CanSpliceCopy == 2 {
+						inbound.CanSpliceCopy = 1
+					}
+					if isUplink && ob != nil && ob.CanSpliceCopy == 2 {
+						ob.CanSpliceCopy = 1
+					}
+				}
+				rawConn, _, writerCounter := proxy.UnwrapRawConn(conn)
+				writer = buf.NewWriter(rawConn)
+				ct = writerCounter
+				if isUplink {
+					trafficState.Outbound.UplinkWriterDirectCopy = false
+				} else {
+					trafficState.Inbound.DownlinkWriterDirectCopy = false
+				}
+			}
+			if !buffer.IsEmpty() {
+				if ct != nil {
+					ct.Add(int64(buffer.Len()))
+				}
 				timer.Update()
 				if werr := writer.WriteMultiBuffer(buffer); werr != nil {
 					return werr

proxy/vless/encryption/client.go

@@ -1,210 +0,0 @@
-package encryption
-
-import (
-	"crypto/cipher"
-	"crypto/ecdh"
-	"crypto/mlkem"
-	"crypto/rand"
-	"io"
-	"net"
-	"sync"
-	"time"
-
-	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/protocol"
-	"lukechampine.com/blake3"
-)
-
-type ClientInstance struct {
-	NfsPKeys      []any
-	NfsPKeysBytes [][]byte
-	Hash32s       [][32]byte
-	RelaysLength  int
-	XorMode       uint32
-	Seconds       uint32
-	PaddingLens   [][3]int
-	PaddingGaps   [][3]int
-
-	RWLock sync.RWMutex
-	Expire time.Time
-	PfsKey []byte
-	Ticket []byte
-}
-
-func (i *ClientInstance) Init(nfsPKeysBytes [][]byte, xorMode, seconds uint32, padding string) (err error) {
-	if i.NfsPKeys != nil {
-		return errors.New("already initialized")
-	}
-	l := len(nfsPKeysBytes)
-	if l == 0 {
-		return errors.New("empty nfsPKeysBytes")
-	}
-	i.NfsPKeys = make([]any, l)
-	i.NfsPKeysBytes = nfsPKeysBytes
-	i.Hash32s = make([][32]byte, l)
-	for j, k := range nfsPKeysBytes {
-		if len(k) == 32 {
-			if i.NfsPKeys[j], err = ecdh.X25519().NewPublicKey(k); err != nil {
-				return
-			}
-			i.RelaysLength += 32 + 32
-		} else {
-			if i.NfsPKeys[j], err = mlkem.NewEncapsulationKey768(k); err != nil {
-				return
-			}
-			i.RelaysLength += 1088 + 32
-		}
-		i.Hash32s[j] = blake3.Sum256(k)
-	}
-	i.RelaysLength -= 32
-	i.XorMode = xorMode
-	i.Seconds = seconds
-	return ParsePadding(padding, &i.PaddingLens, &i.PaddingGaps)
-}
-
-func (i *ClientInstance) Handshake(conn net.Conn) (*CommonConn, error) {
-	if i.NfsPKeys == nil {
-		return nil, errors.New("uninitialized")
-	}
-	c := NewCommonConn(conn, protocol.HasAESGCMHardwareSupport)
-
-	ivAndRealysLength := 16 + i.RelaysLength
-	pfsKeyExchangeLength := 18 + 1184 + 32 + 16
-	paddingLength, paddingLens, paddingGaps := CreatPadding(i.PaddingLens, i.PaddingGaps)
-	clientHello := make([]byte, ivAndRealysLength+pfsKeyExchangeLength+paddingLength)
-
-	iv := clientHello[:16]
-	rand.Read(iv)
-	relays := clientHello[16:ivAndRealysLength]
-	var nfsKey []byte
-	var lastCTR cipher.Stream
-	for j, k := range i.NfsPKeys {
-		var index = 32
-		if k, ok := k.(*ecdh.PublicKey); ok {
-			privateKey, _ := ecdh.X25519().GenerateKey(rand.Reader)
-			copy(relays, privateKey.PublicKey().Bytes())
-			var err error
-			nfsKey, err = privateKey.ECDH(k)
-			if err != nil {
-				return nil, err
-			}
-		}
-		if k, ok := k.(*mlkem.EncapsulationKey768); ok {
-			var ciphertext []byte
-			nfsKey, ciphertext = k.Encapsulate()
-			copy(relays, ciphertext)
-			index = 1088
-		}
-		if i.XorMode > 0 { // this xor can (others can't) be recovered by client's config, revealing an X25519 public key / ML-KEM-768 ciphertext, that's why "native" values
-			NewCTR(i.NfsPKeysBytes[j], iv).XORKeyStream(relays, relays[:index]) // make X25519 public key / ML-KEM-768 ciphertext distinguishable from random bytes
-		}
-		if lastCTR != nil {
-			lastCTR.XORKeyStream(relays, relays[:32]) // make this relay irreplaceable
-		}
-		if j == len(i.NfsPKeys)-1 {
-			break
-		}
-		lastCTR = NewCTR(nfsKey, iv)
-		lastCTR.XORKeyStream(relays[index:], i.Hash32s[j+1][:])
-		relays = relays[index+32:]
-	}
-	nfsAEAD := NewAEAD(iv, nfsKey, c.UseAES)
-
-	if i.Seconds > 0 {
-		i.RWLock.RLock()
-		if time.Now().Before(i.Expire) {
-			c.Client = i
-			c.UnitedKey = append(i.PfsKey, nfsKey...) // different unitedKey for each connection
-			nfsAEAD.Seal(clientHello[:ivAndRealysLength], nil, EncodeLength(32), nil)
-			nfsAEAD.Seal(clientHello[:ivAndRealysLength+18], nil, i.Ticket, nil)
-			i.RWLock.RUnlock()
-			c.PreWrite = clientHello[:ivAndRealysLength+18+32]
-			c.AEAD = NewAEAD(clientHello[ivAndRealysLength+18:ivAndRealysLength+18+32], c.UnitedKey, c.UseAES)
-			if i.XorMode == 2 {
-				c.Conn = NewXorConn(conn, NewCTR(c.UnitedKey, iv), nil, len(c.PreWrite), 16)
-			}
-			return c, nil
-		}
-		i.RWLock.RUnlock()
-	}
-
-	pfsKeyExchange := clientHello[ivAndRealysLength : ivAndRealysLength+pfsKeyExchangeLength]
-	nfsAEAD.Seal(pfsKeyExchange[:0], nil, EncodeLength(pfsKeyExchangeLength-18), nil)
-	mlkem768DKey, _ := mlkem.GenerateKey768()
-	x25519SKey, _ := ecdh.X25519().GenerateKey(rand.Reader)
-	pfsPublicKey := append(mlkem768DKey.EncapsulationKey().Bytes(), x25519SKey.PublicKey().Bytes()...)
-	nfsAEAD.Seal(pfsKeyExchange[:18], nil, pfsPublicKey, nil)
-
-	padding := clientHello[ivAndRealysLength+pfsKeyExchangeLength:]
-	nfsAEAD.Seal(padding[:0], nil, EncodeLength(paddingLength-18), nil)
-	nfsAEAD.Seal(padding[:18], nil, padding[18:paddingLength-16], nil)
-
-	paddingLens[0] = ivAndRealysLength + pfsKeyExchangeLength + paddingLens[0]
-	for i, l := range paddingLens { // sends padding in a fragmented way, to create variable traffic pattern, before inner VLESS flow takes control
-		if l > 0 {
-			if _, err := conn.Write(clientHello[:l]); err != nil {
-				return nil, err
-			}
-			clientHello = clientHello[l:]
-		}
-		if len(paddingGaps) > i {
-			time.Sleep(paddingGaps[i])
-		}
-	}
-
-	encryptedPfsPublicKey := make([]byte, 1088+32+16)
-	if _, err := io.ReadFull(conn, encryptedPfsPublicKey); err != nil {
-		return nil, err
-	}
-	nfsAEAD.Open(encryptedPfsPublicKey[:0], MaxNonce, encryptedPfsPublicKey, nil)
-	mlkem768Key, err := mlkem768DKey.Decapsulate(encryptedPfsPublicKey[:1088])
-	if err != nil {
-		return nil, err
-	}
-	peerX25519PKey, err := ecdh.X25519().NewPublicKey(encryptedPfsPublicKey[1088 : 1088+32])
-	if err != nil {
-		return nil, err
-	}
-	x25519Key, err := x25519SKey.ECDH(peerX25519PKey)
-	if err != nil {
-		return nil, err
-	}
-	pfsKey := make([]byte, 32+32) // no more capacity
-	copy(pfsKey, mlkem768Key)
-	copy(pfsKey[32:], x25519Key)
-	c.UnitedKey = append(pfsKey, nfsKey...)
-	c.AEAD = NewAEAD(pfsPublicKey, c.UnitedKey, c.UseAES)
-	c.PeerAEAD = NewAEAD(encryptedPfsPublicKey[:1088+32], c.UnitedKey, c.UseAES)
-
-	encryptedTicket := make([]byte, 32)
-	if _, err := io.ReadFull(conn, encryptedTicket); err != nil {
-		return nil, err
-	}
-	if _, err := c.PeerAEAD.Open(encryptedTicket[:0], nil, encryptedTicket, nil); err != nil {
-		return nil, err
-	}
-	seconds := DecodeLength(encryptedTicket)
-
-	if i.Seconds > 0 && seconds > 0 {
-		i.RWLock.Lock()
-		i.Expire = time.Now().Add(time.Duration(seconds) * time.Second)
-		i.PfsKey = pfsKey
-		i.Ticket = encryptedTicket[:16]
-		i.RWLock.Unlock()
-	}
-
-	encryptedLength := make([]byte, 18)
-	if _, err := io.ReadFull(conn, encryptedLength); err != nil {
-		return nil, err
-	}
-	if _, err := c.PeerAEAD.Open(encryptedLength[:0], nil, encryptedLength, nil); err != nil {
-		return nil, err
-	}
-	length := DecodeLength(encryptedLength[:2])
-	c.PeerPadding = make([]byte, length) // important: allows server sends padding slowly, eliminating 1-RTT's traffic pattern
-
-	if i.XorMode == 2 {
-		c.Conn = NewXorConn(conn, NewCTR(c.UnitedKey, iv), NewCTR(c.UnitedKey, encryptedTicket[:16]), 0, length)
-	}
-	return c, nil
-}

proxy/vless/encryption/common.go

@@ -1,280 +0,0 @@
-package encryption
-
-import (
-	"bytes"
-	"crypto/aes"
-	"crypto/cipher"
-	"fmt"
-	"io"
-	"net"
-	"strconv"
-	"strings"
-	"sync"
-	"time"
-
-	"github.com/xtls/xray-core/common/crypto"
-	"github.com/xtls/xray-core/common/errors"
-	"golang.org/x/crypto/chacha20poly1305"
-	"lukechampine.com/blake3"
-)
-
-var OutBytesPool = sync.Pool{
-	New: func() any {
-		return make([]byte, 5+8192+16)
-	},
-}
-
-type CommonConn struct {
-	net.Conn
-	UseAES      bool
-	Client      *ClientInstance
-	UnitedKey   []byte
-	PreWrite    []byte
-	AEAD        *AEAD
-	PeerAEAD    *AEAD
-	PeerPadding []byte
-	rawInput    bytes.Buffer
-	input       bytes.Reader
-}
-
-func NewCommonConn(conn net.Conn, useAES bool) *CommonConn {
-	return &CommonConn{
-		Conn:   conn,
-		UseAES: useAES,
-	}
-}
-
-func (c *CommonConn) Write(b []byte) (int, error) {
-	if len(b) == 0 {
-		return 0, nil
-	}
-	outBytes := OutBytesPool.Get().([]byte)
-	defer OutBytesPool.Put(outBytes)
-	for n := 0; n < len(b); {
-		b := b[n:]
-		if len(b) > 8192 {
-			b = b[:8192] // for avoiding another copy() in peer's Read()
-		}
-		n += len(b)
-		headerAndData := outBytes[:5+len(b)+16]
-		EncodeHeader(headerAndData, len(b)+16)
-		max := false
-		if bytes.Equal(c.AEAD.Nonce[:], MaxNonce) {
-			max = true
-		}
-		c.AEAD.Seal(headerAndData[:5], nil, b, headerAndData[:5])
-		if max {
-			c.AEAD = NewAEAD(headerAndData, c.UnitedKey, c.UseAES)
-		}
-		if c.PreWrite != nil {
-			headerAndData = append(c.PreWrite, headerAndData...)
-			c.PreWrite = nil
-		}
-		if _, err := c.Conn.Write(headerAndData); err != nil {
-			return 0, err
-		}
-	}
-	return len(b), nil
-}
-
-func (c *CommonConn) Read(b []byte) (int, error) {
-	if len(b) == 0 {
-		return 0, nil
-	}
-	if c.PeerAEAD == nil { // client's 0-RTT
-		serverRandom := make([]byte, 16)
-		if _, err := io.ReadFull(c.Conn, serverRandom); err != nil {
-			return 0, err
-		}
-		c.PeerAEAD = NewAEAD(serverRandom, c.UnitedKey, c.UseAES)
-		if xorConn, ok := c.Conn.(*XorConn); ok {
-			xorConn.PeerCTR = NewCTR(c.UnitedKey, serverRandom)
-		}
-	}
-	if c.PeerPadding != nil { // client's 1-RTT
-		if _, err := io.ReadFull(c.Conn, c.PeerPadding); err != nil {
-			return 0, err
-		}
-		if _, err := c.PeerAEAD.Open(c.PeerPadding[:0], nil, c.PeerPadding, nil); err != nil {
-			return 0, err
-		}
-		c.PeerPadding = nil
-	}
-	if c.input.Len() > 0 {
-		return c.input.Read(b)
-	}
-	peerHeader := [5]byte{}
-	if _, err := io.ReadFull(c.Conn, peerHeader[:]); err != nil {
-		return 0, err
-	}
-	l, err := DecodeHeader(peerHeader[:]) // l: 17~17000
-	if err != nil {
-		if c.Client != nil && strings.Contains(err.Error(), "invalid header: ") { // client's 0-RTT
-			c.Client.RWLock.Lock()
-			if bytes.HasPrefix(c.UnitedKey, c.Client.PfsKey) {
-				c.Client.Expire = time.Now() // expired
-			}
-			c.Client.RWLock.Unlock()
-			return 0, errors.New("new handshake needed")
-		}
-		return 0, err
-	}
-	c.Client = nil
-	if c.rawInput.Cap() < l {
-		c.rawInput.Grow(l) // no need to use sync.Pool, because we are always reading
-	}
-	peerData := c.rawInput.Bytes()[:l]
-	if _, err := io.ReadFull(c.Conn, peerData); err != nil {
-		return 0, err
-	}
-	dst := peerData[:l-16]
-	if len(dst) <= len(b) {
-		dst = b[:len(dst)] // avoids another copy()
-	}
-	var newAEAD *AEAD
-	if bytes.Equal(c.PeerAEAD.Nonce[:], MaxNonce) {
-		newAEAD = NewAEAD(append(peerHeader[:], peerData...), c.UnitedKey, c.UseAES)
-	}
-	_, err = c.PeerAEAD.Open(dst[:0], nil, peerData, peerHeader[:])
-	if newAEAD != nil {
-		c.PeerAEAD = newAEAD
-	}
-	if err != nil {
-		return 0, err
-	}
-	if len(dst) > len(b) {
-		c.input.Reset(dst[copy(b, dst):])
-		dst = b // for len(dst)
-	}
-	return len(dst), nil
-}
-
-type AEAD struct {
-	cipher.AEAD
-	Nonce [12]byte
-}
-
-func NewAEAD(ctx, key []byte, useAES bool) *AEAD {
-	k := make([]byte, 32)
-	blake3.DeriveKey(k, string(ctx), key)
-	var aead cipher.AEAD
-	if useAES {
-		block, _ := aes.NewCipher(k)
-		aead, _ = cipher.NewGCM(block)
-	} else {
-		aead, _ = chacha20poly1305.New(k)
-	}
-	return &AEAD{AEAD: aead}
-}
-
-func (a *AEAD) Seal(dst, nonce, plaintext, additionalData []byte) []byte {
-	if nonce == nil {
-		nonce = IncreaseNonce(a.Nonce[:])
-	}
-	return a.AEAD.Seal(dst, nonce, plaintext, additionalData)
-}
-
-func (a *AEAD) Open(dst, nonce, ciphertext, additionalData []byte) ([]byte, error) {
-	if nonce == nil {
-		nonce = IncreaseNonce(a.Nonce[:])
-	}
-	return a.AEAD.Open(dst, nonce, ciphertext, additionalData)
-}
-
-func IncreaseNonce(nonce []byte) []byte {
-	for i := range 12 {
-		nonce[11-i]++
-		if nonce[11-i] != 0 {
-			break
-		}
-	}
-	return nonce
-}
-
-var MaxNonce = bytes.Repeat([]byte{255}, 12)
-
-func EncodeLength(l int) []byte {
-	return []byte{byte(l >> 8), byte(l)}
-}
-
-func DecodeLength(b []byte) int {
-	return int(b[0])<<8 | int(b[1])
-}
-
-func EncodeHeader(h []byte, l int) {
-	h[0] = 23
-	h[1] = 3
-	h[2] = 3
-	h[3] = byte(l >> 8)
-	h[4] = byte(l)
-}
-
-func DecodeHeader(h []byte) (l int, err error) {
-	l = int(h[3])<<8 | int(h[4])
-	if h[0] != 23 || h[1] != 3 || h[2] != 3 {
-		l = 0
-	}
-	if l < 17 || l > 17000 { // TODO: TLSv1.3 max length
-		err = errors.New("invalid header: " + fmt.Sprintf("%v", h[:5])) // DO NOT CHANGE: relied by client's Read()
-	}
-	return
-}
-
-func ParsePadding(padding string, paddingLens, paddingGaps *[][3]int) (err error) {
-	if padding == "" {
-		return
-	}
-	maxLen := 0
-	for i, s := range strings.Split(padding, ".") {
-		x := strings.Split(s, "-")
-		if len(x) < 3 || x[0] == "" || x[1] == "" || x[2] == "" {
-			return errors.New("invalid padding lenth/gap parameter: " + s)
-		}
-		y := [3]int{}
-		if y[0], err = strconv.Atoi(x[0]); err != nil {
-			return
-		}
-		if y[1], err = strconv.Atoi(x[1]); err != nil {
-			return
-		}
-		if y[2], err = strconv.Atoi(x[2]); err != nil {
-			return
-		}
-		if i == 0 && (y[0] < 100 || y[1] < 18+17 || y[2] < 18+17) {
-			return errors.New("first padding length must not be smaller than 35")
-		}
-		if i%2 == 0 {
-			*paddingLens = append(*paddingLens, y)
-			maxLen += max(y[1], y[2])
-		} else {
-			*paddingGaps = append(*paddingGaps, y)
-		}
-	}
-	if maxLen > 18+65535 {
-		return errors.New("total padding length must not be larger than 65553")
-	}
-	return
-}
-
-func CreatPadding(paddingLens, paddingGaps [][3]int) (length int, lens []int, gaps []time.Duration) {
-	if len(paddingLens) == 0 {
-		paddingLens = [][3]int{{100, 111, 1111}, {50, 0, 3333}}
-		paddingGaps = [][3]int{{75, 0, 111}}
-	}
-	for _, y := range paddingLens {
-		l := 0
-		if y[0] >= int(crypto.RandBetween(0, 100)) {
-			l = int(crypto.RandBetween(int64(y[1]), int64(y[2])))
-		}
-		lens = append(lens, l)
-		length += l
-	}
-	for _, y := range paddingGaps {
-		g := 0
-		if y[0] >= int(crypto.RandBetween(0, 100)) {
-			g = int(crypto.RandBetween(int64(y[1]), int64(y[2])))
-		}
-		gaps = append(gaps, time.Duration(g)*time.Millisecond)
-	}
-	return
-}

proxy/vless/encryption/server.go

@@ -1,328 +0,0 @@
-package encryption
-
-import (
-	"bytes"
-	"crypto/cipher"
-	"crypto/ecdh"
-	"crypto/mlkem"
-	"crypto/rand"
-	"fmt"
-	"io"
-	"net"
-	"sync"
-	"time"
-
-	"github.com/xtls/xray-core/common/crypto"
-	"github.com/xtls/xray-core/common/errors"
-	"lukechampine.com/blake3"
-)
-
-type ServerSession struct {
-	PfsKey  []byte
-	NfsKeys sync.Map
-}
-
-type ServerInstance struct {
-	NfsSKeys      []any
-	NfsPKeysBytes [][]byte
-	Hash32s       [][32]byte
-	RelaysLength  int
-	XorMode       uint32
-	SecondsFrom   int64
-	SecondsTo     int64
-	PaddingLens   [][3]int
-	PaddingGaps   [][3]int
-
-	RWLock   sync.RWMutex
-	Closed   bool
-	Lasts    map[int64][16]byte
-	Tickets  [][16]byte
-	Sessions map[[16]byte]*ServerSession
-}
-
-func (i *ServerInstance) Init(nfsSKeysBytes [][]byte, xorMode uint32, secondsFrom, secondsTo int64, padding string) (err error) {
-	if i.NfsSKeys != nil {
-		return errors.New("already initialized")
-	}
-	l := len(nfsSKeysBytes)
-	if l == 0 {
-		return errors.New("empty nfsSKeysBytes")
-	}
-	i.NfsSKeys = make([]any, l)
-	i.NfsPKeysBytes = make([][]byte, l)
-	i.Hash32s = make([][32]byte, l)
-	for j, k := range nfsSKeysBytes {
-		if len(k) == 32 {
-			if i.NfsSKeys[j], err = ecdh.X25519().NewPrivateKey(k); err != nil {
-				return
-			}
-			i.NfsPKeysBytes[j] = i.NfsSKeys[j].(*ecdh.PrivateKey).PublicKey().Bytes()
-			i.RelaysLength += 32 + 32
-		} else {
-			if i.NfsSKeys[j], err = mlkem.NewDecapsulationKey768(k); err != nil {
-				return
-			}
-			i.NfsPKeysBytes[j] = i.NfsSKeys[j].(*mlkem.DecapsulationKey768).EncapsulationKey().Bytes()
-			i.RelaysLength += 1088 + 32
-		}
-		i.Hash32s[j] = blake3.Sum256(i.NfsPKeysBytes[j])
-	}
-	i.RelaysLength -= 32
-	i.XorMode = xorMode
-	i.SecondsFrom = secondsFrom
-	i.SecondsTo = secondsTo
-	err = ParsePadding(padding, &i.PaddingLens, &i.PaddingGaps)
-	if err != nil {
-		return
-	}
-	if i.SecondsFrom > 0 || i.SecondsTo > 0 {
-		i.Lasts = make(map[int64][16]byte)
-		i.Tickets = make([][16]byte, 0, 1024)
-		i.Sessions = make(map[[16]byte]*ServerSession)
-		go func() {
-			for {
-				time.Sleep(time.Minute)
-				i.RWLock.Lock()
-				if i.Closed {
-					i.RWLock.Unlock()
-					return
-				}
-				minute := time.Now().Unix() / 60
-				last := i.Lasts[minute]
-				delete(i.Lasts, minute)
-				delete(i.Lasts, minute-1) // for insurance
-				if last != [16]byte{} {
-					for j, ticket := range i.Tickets {
-						delete(i.Sessions, ticket)
-						if ticket == last {
-							i.Tickets = i.Tickets[j+1:]
-							break
-						}
-					}
-				}
-				i.RWLock.Unlock()
-			}
-		}()
-	}
-	return
-}
-
-func (i *ServerInstance) Close() (err error) {
-	i.RWLock.Lock()
-	i.Closed = true
-	i.RWLock.Unlock()
-	return
-}
-
-func (i *ServerInstance) Handshake(conn net.Conn, fallback *[]byte) (*CommonConn, error) {
-	if i.NfsSKeys == nil {
-		return nil, errors.New("uninitialized")
-	}
-	c := NewCommonConn(conn, true)
-
-	ivAndRelays := make([]byte, 16+i.RelaysLength)
-	if _, err := io.ReadFull(conn, ivAndRelays); err != nil {
-		return nil, err
-	}
-	if fallback != nil {
-		*fallback = append(*fallback, ivAndRelays...)
-	}
-	iv := ivAndRelays[:16]
-	relays := ivAndRelays[16:]
-	var nfsKey []byte
-	var lastCTR cipher.Stream
-	for j, k := range i.NfsSKeys {
-		if lastCTR != nil {
-			lastCTR.XORKeyStream(relays, relays[:32]) // recover this relay
-		}
-		var index = 32
-		if _, ok := k.(*mlkem.DecapsulationKey768); ok {
-			index = 1088
-		}
-		if i.XorMode > 0 {
-			NewCTR(i.NfsPKeysBytes[j], iv).XORKeyStream(relays, relays[:index]) // we don't use buggy elligator2, because we have PSK :)
-		}
-		if k, ok := k.(*ecdh.PrivateKey); ok {
-			publicKey, err := ecdh.X25519().NewPublicKey(relays[:index])
-			if err != nil {
-				return nil, err
-			}
-			if publicKey.Bytes()[31] > 127 { // we just don't want the observer can change even one bit without breaking the connection, though it has nothing to do with security
-				return nil, errors.New("the highest bit of the last byte of the peer-sent X25519 public key is not 0")
-			}
-			nfsKey, err = k.ECDH(publicKey)
-			if err != nil {
-				return nil, err
-			}
-		}
-		if k, ok := k.(*mlkem.DecapsulationKey768); ok {
-			var err error
-			nfsKey, err = k.Decapsulate(relays[:index])
-			if err != nil {
-				return nil, err
-			}
-		}
-		if j == len(i.NfsSKeys)-1 {
-			break
-		}
-		relays = relays[index:]
-		lastCTR = NewCTR(nfsKey, iv)
-		lastCTR.XORKeyStream(relays, relays[:32])
-		if !bytes.Equal(relays[:32], i.Hash32s[j+1][:]) {
-			return nil, errors.New("unexpected hash32: ", fmt.Sprintf("%v", relays[:32]))
-		}
-		relays = relays[32:]
-	}
-	nfsAEAD := NewAEAD(iv, nfsKey, c.UseAES)
-
-	encryptedLength := make([]byte, 18)
-	if _, err := io.ReadFull(conn, encryptedLength); err != nil {
-		return nil, err
-	}
-	if fallback != nil {
-		*fallback = append(*fallback, encryptedLength...)
-	}
-	decryptedLength := make([]byte, 2)
-	if _, err := nfsAEAD.Open(decryptedLength[:0], nil, encryptedLength, nil); err != nil {
-		c.UseAES = !c.UseAES
-		nfsAEAD = NewAEAD(iv, nfsKey, c.UseAES)
-		if _, err := nfsAEAD.Open(decryptedLength[:0], nil, encryptedLength, nil); err != nil {
-			return nil, err
-		}
-	}
-	if fallback != nil {
-		*fallback = nil
-	}
-	length := DecodeLength(decryptedLength)
-
-	if length == 32 {
-		if i.SecondsFrom == 0 && i.SecondsTo == 0 {
-			return nil, errors.New("0-RTT is not allowed")
-		}
-		encryptedTicket := make([]byte, 32)
-		if _, err := io.ReadFull(conn, encryptedTicket); err != nil {
-			return nil, err
-		}
-		ticket, err := nfsAEAD.Open(nil, nil, encryptedTicket, nil)
-		if err != nil {
-			return nil, err
-		}
-		i.RWLock.RLock()
-		s := i.Sessions[[16]byte(ticket)]
-		i.RWLock.RUnlock()
-		if s == nil {
-			noises := make([]byte, crypto.RandBetween(1279, 2279)) // matches 1-RTT's server hello length for "random", though it is not important, just for example
-			var err error
-			for err == nil {
-				rand.Read(noises)
-				_, err = DecodeHeader(noises)
-			}
-			conn.Write(noises) // make client do new handshake
-			return nil, errors.New("expired ticket")
-		}
-		if _, loaded := s.NfsKeys.LoadOrStore([32]byte(nfsKey), true); loaded { // prevents bad client also
-			return nil, errors.New("replay detected")
-		}
-		c.UnitedKey = append(s.PfsKey, nfsKey...) // the same nfsKey links the upload & download (prevents server -> client's another request)
-		c.PreWrite = make([]byte, 16)
-		rand.Read(c.PreWrite) // always trust yourself, not the client (also prevents being parsed as TLS thus causing false interruption for "native" and "xorpub")
-		c.AEAD = NewAEAD(c.PreWrite, c.UnitedKey, c.UseAES)
-		c.PeerAEAD = NewAEAD(encryptedTicket, c.UnitedKey, c.UseAES) // unchangeable ctx (prevents server -> server), and different ctx length for upload / download (prevents client -> client)
-		if i.XorMode == 2 {
-			c.Conn = NewXorConn(conn, NewCTR(c.UnitedKey, c.PreWrite), NewCTR(c.UnitedKey, iv), 16, 0) // it doesn't matter if the attacker sends client's iv back to the client
-		}
-		return c, nil
-	}
-
-	if length < 1184+32+16 { // client may send more public keys in the future's version
-		return nil, errors.New("too short length")
-	}
-	encryptedPfsPublicKey := make([]byte, length)
-	if _, err := io.ReadFull(conn, encryptedPfsPublicKey); err != nil {
-		return nil, err
-	}
-	if _, err := nfsAEAD.Open(encryptedPfsPublicKey[:0], nil, encryptedPfsPublicKey, nil); err != nil {
-		return nil, err
-	}
-	mlkem768EKey, err := mlkem.NewEncapsulationKey768(encryptedPfsPublicKey[:1184])
-	if err != nil {
-		return nil, err
-	}
-	mlkem768Key, encapsulatedPfsKey := mlkem768EKey.Encapsulate()
-	peerX25519PKey, err := ecdh.X25519().NewPublicKey(encryptedPfsPublicKey[1184 : 1184+32])
-	if err != nil {
-		return nil, err
-	}
-	x25519SKey, _ := ecdh.X25519().GenerateKey(rand.Reader)
-	x25519Key, err := x25519SKey.ECDH(peerX25519PKey)
-	if err != nil {
-		return nil, err
-	}
-	pfsKey := make([]byte, 32+32) // no more capacity
-	copy(pfsKey, mlkem768Key)
-	copy(pfsKey[32:], x25519Key)
-	pfsPublicKey := append(encapsulatedPfsKey, x25519SKey.PublicKey().Bytes()...)
-	c.UnitedKey = append(pfsKey, nfsKey...)
-	c.AEAD = NewAEAD(pfsPublicKey, c.UnitedKey, c.UseAES)
-	c.PeerAEAD = NewAEAD(encryptedPfsPublicKey[:1184+32], c.UnitedKey, c.UseAES)
-
-	ticket := [16]byte{}
-	rand.Read(ticket[:])
-	var seconds int64
-	if i.SecondsTo == 0 {
-		seconds = i.SecondsFrom * crypto.RandBetween(50, 100) / 100
-	} else {
-		seconds = crypto.RandBetween(i.SecondsFrom, i.SecondsTo)
-	}
-	copy(ticket[:], EncodeLength(int(seconds)))
-	if seconds > 0 {
-		i.RWLock.Lock()
-		i.Lasts[(time.Now().Unix()+max(i.SecondsFrom, i.SecondsTo))/60+2] = ticket
-		i.Tickets = append(i.Tickets, ticket)
-		i.Sessions[ticket] = &ServerSession{PfsKey: pfsKey}
-		i.RWLock.Unlock()
-	}
-
-	pfsKeyExchangeLength := 1088 + 32 + 16
-	encryptedTicketLength := 32
-	paddingLength, paddingLens, paddingGaps := CreatPadding(i.PaddingLens, i.PaddingGaps)
-	serverHello := make([]byte, pfsKeyExchangeLength+encryptedTicketLength+paddingLength)
-	nfsAEAD.Seal(serverHello[:0], MaxNonce, pfsPublicKey, nil)
-	c.AEAD.Seal(serverHello[:pfsKeyExchangeLength], nil, ticket[:], nil)
-	padding := serverHello[pfsKeyExchangeLength+encryptedTicketLength:]
-	c.AEAD.Seal(padding[:0], nil, EncodeLength(paddingLength-18), nil)
-	c.AEAD.Seal(padding[:18], nil, padding[18:paddingLength-16], nil)
-
-	paddingLens[0] = pfsKeyExchangeLength + encryptedTicketLength + paddingLens[0]
-	for i, l := range paddingLens { // sends padding in a fragmented way, to create variable traffic pattern, before inner VLESS flow takes control
-		if l > 0 {
-			if _, err := conn.Write(serverHello[:l]); err != nil {
-				return nil, err
-			}
-			serverHello = serverHello[l:]
-		}
-		if len(paddingGaps) > i {
-			time.Sleep(paddingGaps[i])
-		}
-	}
-
-	// important: allows client sends padding slowly, eliminating 1-RTT's traffic pattern
-	if _, err := io.ReadFull(conn, encryptedLength); err != nil {
-		return nil, err
-	}
-	if _, err := nfsAEAD.Open(encryptedLength[:0], nil, encryptedLength, nil); err != nil {
-		return nil, err
-	}
-	encryptedPadding := make([]byte, DecodeLength(encryptedLength[:2]))
-	if _, err := io.ReadFull(conn, encryptedPadding); err != nil {
-		return nil, err
-	}
-	if _, err := nfsAEAD.Open(encryptedPadding[:0], nil, encryptedPadding, nil); err != nil {
-		return nil, err
-	}
-
-	if i.XorMode == 2 {
-		c.Conn = NewXorConn(conn, NewCTR(c.UnitedKey, ticket[:]), NewCTR(c.UnitedKey, iv), 0, 0)
-	}
-	return c, nil
-}

proxy/vless/encryption/xor.go

@@ -1,93 +0,0 @@
-package encryption
-
-import (
-	"crypto/aes"
-	"crypto/cipher"
-	"net"
-
-	"lukechampine.com/blake3"
-)
-
-func NewCTR(key, iv []byte) cipher.Stream {
-	k := make([]byte, 32)
-	blake3.DeriveKey(k, "VLESS", key) // avoids using key directly
-	block, _ := aes.NewCipher(k)
-	return cipher.NewCTR(block, iv)
-	//chacha20.NewUnauthenticatedCipher()
-}
-
-type XorConn struct {
-	net.Conn
-	CTR       cipher.Stream
-	PeerCTR   cipher.Stream
-	OutSkip   int
-	OutHeader []byte
-	InSkip    int
-	InHeader  []byte
-}
-
-func NewXorConn(conn net.Conn, ctr, peerCTR cipher.Stream, outSkip, inSkip int) *XorConn {
-	return &XorConn{
-		Conn:      conn,
-		CTR:       ctr,
-		PeerCTR:   peerCTR,
-		OutSkip:   outSkip,
-		OutHeader: make([]byte, 0, 5), // important
-		InSkip:    inSkip,
-		InHeader:  make([]byte, 0, 5), // important
-	}
-}
-
-func (c *XorConn) Write(b []byte) (int, error) {
-	if len(b) == 0 {
-		return 0, nil
-	}
-	for p := b; ; {
-		if len(p) <= c.OutSkip {
-			c.OutSkip -= len(p)
-			break
-		}
-		p = p[c.OutSkip:]
-		c.OutSkip = 0
-		need := 5 - len(c.OutHeader)
-		if len(p) < need {
-			c.OutHeader = append(c.OutHeader, p...)
-			c.CTR.XORKeyStream(p, p)
-			break
-		}
-		c.OutSkip, _ = DecodeHeader(append(c.OutHeader, p[:need]...))
-		c.OutHeader = c.OutHeader[:0]
-		c.CTR.XORKeyStream(p[:need], p[:need])
-		p = p[need:]
-	}
-	if _, err := c.Conn.Write(b); err != nil {
-		return 0, err
-	}
-	return len(b), nil
-}
-
-func (c *XorConn) Read(b []byte) (int, error) {
-	if len(b) == 0 {
-		return 0, nil
-	}
-	n, err := c.Conn.Read(b)
-	for p := b[:n]; ; {
-		if len(p) <= c.InSkip {
-			c.InSkip -= len(p)
-			break
-		}
-		p = p[c.InSkip:]
-		c.InSkip = 0
-		need := 5 - len(c.InHeader)
-		if len(p) < need {
-			c.PeerCTR.XORKeyStream(p, p)
-			c.InHeader = append(c.InHeader, p...)
-			break
-		}
-		c.PeerCTR.XORKeyStream(p[:need], p[:need])
-		c.InSkip, _ = DecodeHeader(append(c.InHeader, p[:need]...))
-		c.InHeader = c.InHeader[:0]
-		p = p[need:]
-	}
-	return n, err
-}

proxy/vless/inbound/config.pb.go

@@ -111,13 +111,11 @@ type Config struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Clients     []*protocol.User `protobuf:"bytes,1,rep,name=clients,proto3" json:"clients,omitempty"`
+	Clients []*protocol.User `protobuf:"bytes,1,rep,name=clients,proto3" json:"clients,omitempty"`
-	Fallbacks   []*Fallback      `protobuf:"bytes,2,rep,name=fallbacks,proto3" json:"fallbacks,omitempty"`
+	// Decryption settings. Only applies to server side, and only accepts "none"
-	Decryption  string           `protobuf:"bytes,3,opt,name=decryption,proto3" json:"decryption,omitempty"`
+	// for now.
-	XorMode     uint32           `protobuf:"varint,4,opt,name=xorMode,proto3" json:"xorMode,omitempty"`
+	Decryption string      `protobuf:"bytes,2,opt,name=decryption,proto3" json:"decryption,omitempty"`
-	SecondsFrom int64            `protobuf:"varint,5,opt,name=seconds_from,json=secondsFrom,proto3" json:"seconds_from,omitempty"`
+	Fallbacks  []*Fallback `protobuf:"bytes,3,rep,name=fallbacks,proto3" json:"fallbacks,omitempty"`
-	SecondsTo   int64            `protobuf:"varint,6,opt,name=seconds_to,json=secondsTo,proto3" json:"seconds_to,omitempty"`
-	Padding     string           `protobuf:"bytes,7,opt,name=padding,proto3" json:"padding,omitempty"`
 }
 
 func (x *Config) Reset() {
@@ -157,13 +155,6 @@ func (x *Config) GetClients() []*protocol.User {
 	return nil
 }
 
-func (x *Config) GetFallbacks() []*Fallback {
-	if x != nil {
-		return x.Fallbacks
-	}
-	return nil
-}
-
 func (x *Config) GetDecryption() string {
 	if x != nil {
 		return x.Decryption
@@ -171,32 +162,11 @@ func (x *Config) GetDecryption() string {
 	return ""
 }
 
-func (x *Config) GetXorMode() uint32 {
+func (x *Config) GetFallbacks() []*Fallback {
 	if x != nil {
-		return x.XorMode
+		return x.Fallbacks
 	}
-	return 0
+	return nil
-}
-
-func (x *Config) GetSecondsFrom() int64 {
-	if x != nil {
-		return x.SecondsFrom
-	}
-	return 0
-}
-
-func (x *Config) GetSecondsTo() int64 {
-	if x != nil {
-		return x.SecondsTo
-	}
-	return 0
-}
-
-func (x *Config) GetPadding() string {
-	if x != nil {
-		return x.Padding
-	}
-	return ""
 }
 
 var File_proxy_vless_inbound_config_proto protoreflect.FileDescriptor
@@ -215,32 +185,25 @@ var file_proxy_vless_inbound_config_proto_rawDesc = []byte{
 	0x68, 0x12, 0x12, 0x0a, 0x04, 0x74, 0x79, 0x70, 0x65, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52,
 	0x04, 0x74, 0x79, 0x70, 0x65, 0x12, 0x12, 0x0a, 0x04, 0x64, 0x65, 0x73, 0x74, 0x18, 0x05, 0x20,
 	0x01, 0x28, 0x09, 0x52, 0x04, 0x64, 0x65, 0x73, 0x74, 0x12, 0x12, 0x0a, 0x04, 0x78, 0x76, 0x65,
-	0x72, 0x18, 0x06, 0x20, 0x01, 0x28, 0x04, 0x52, 0x04, 0x78, 0x76, 0x65, 0x72, 0x22, 0x96, 0x02,
+	0x72, 0x18, 0x06, 0x20, 0x01, 0x28, 0x04, 0x52, 0x04, 0x78, 0x76, 0x65, 0x72, 0x22, 0xa0, 0x01,
 	0x0a, 0x06, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x34, 0x0a, 0x07, 0x63, 0x6c, 0x69, 0x65,
 	0x6e, 0x74, 0x73, 0x18, 0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x1a, 0x2e, 0x78, 0x72, 0x61, 0x79,
 	0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x63, 0x6f, 0x6c,
-	0x2e, 0x55, 0x73, 0x65, 0x72, 0x52, 0x07, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x73, 0x12, 0x40,
+	0x2e, 0x55, 0x73, 0x65, 0x72, 0x52, 0x07, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x73, 0x12, 0x1e,
-	0x0a, 0x09, 0x66, 0x61, 0x6c, 0x6c, 0x62, 0x61, 0x63, 0x6b, 0x73, 0x18, 0x02, 0x20, 0x03, 0x28,
+	0x0a, 0x0a, 0x64, 0x65, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x18, 0x02, 0x20, 0x01,
+	0x28, 0x09, 0x52, 0x0a, 0x64, 0x65, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x40,
+	0x0a, 0x09, 0x66, 0x61, 0x6c, 0x6c, 0x62, 0x61, 0x63, 0x6b, 0x73, 0x18, 0x03, 0x20, 0x03, 0x28,
 	0x0b, 0x32, 0x22, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x76,
 	0x6c, 0x65, 0x73, 0x73, 0x2e, 0x69, 0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x2e, 0x46, 0x61, 0x6c,
 	0x6c, 0x62, 0x61, 0x63, 0x6b, 0x52, 0x09, 0x66, 0x61, 0x6c, 0x6c, 0x62, 0x61, 0x63, 0x6b, 0x73,
-	0x12, 0x1e, 0x0a, 0x0a, 0x64, 0x65, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x18, 0x03,
+	0x42, 0x6a, 0x0a, 0x1c, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f,
-	0x20, 0x01, 0x28, 0x09, 0x52, 0x0a, 0x64, 0x65, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e,
+	0x78, 0x79, 0x2e, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x2e, 0x69, 0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64,
-	0x12, 0x18, 0x0a, 0x07, 0x78, 0x6f, 0x72, 0x4d, 0x6f, 0x64, 0x65, 0x18, 0x04, 0x20, 0x01, 0x28,
+	0x50, 0x01, 0x5a, 0x2d, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78,
-	0x0d, 0x52, 0x07, 0x78, 0x6f, 0x72, 0x4d, 0x6f, 0x64, 0x65, 0x12, 0x21, 0x0a, 0x0c, 0x73, 0x65,
+	0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x70, 0x72,
-	0x63, 0x6f, 0x6e, 0x64, 0x73, 0x5f, 0x66, 0x72, 0x6f, 0x6d, 0x18, 0x05, 0x20, 0x01, 0x28, 0x03,
+	0x6f, 0x78, 0x79, 0x2f, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x2f, 0x69, 0x6e, 0x62, 0x6f, 0x75, 0x6e,
-	0x52, 0x0b, 0x73, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x73, 0x46, 0x72, 0x6f, 0x6d, 0x12, 0x1d, 0x0a,
+	0x64, 0xaa, 0x02, 0x18, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x56,
-	0x0a, 0x73, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x73, 0x5f, 0x74, 0x6f, 0x18, 0x06, 0x20, 0x01, 0x28,
+	0x6c, 0x65, 0x73, 0x73, 0x2e, 0x49, 0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x62, 0x06, 0x70, 0x72,
-	0x03, 0x52, 0x09, 0x73, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x73, 0x54, 0x6f, 0x12, 0x18, 0x0a, 0x07,
+	0x6f, 0x74, 0x6f, 0x33,
-	0x70, 0x61, 0x64, 0x64, 0x69, 0x6e, 0x67, 0x18, 0x07, 0x20, 0x01, 0x28, 0x09, 0x52, 0x07, 0x70,
-	0x61, 0x64, 0x64, 0x69, 0x6e, 0x67, 0x42, 0x6a, 0x0a, 0x1c, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72,
-	0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x2e, 0x69,
-	0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x50, 0x01, 0x5a, 0x2d, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62,
-	0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63,
-	0x6f, 0x72, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2f, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x2f,
-	0x69, 0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0xaa, 0x02, 0x18, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x50,
-	0x72, 0x6f, 0x78, 0x79, 0x2e, 0x56, 0x6c, 0x65, 0x73, 0x73, 0x2e, 0x49, 0x6e, 0x62, 0x6f, 0x75,
-	0x6e, 0x64, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

proxy/vless/inbound/config.proto

@@ -19,11 +19,8 @@ message Fallback {
 
 message Config {
   repeated xray.common.protocol.User clients = 1;
-  repeated Fallback fallbacks = 2;
+  // Decryption settings. Only applies to server side, and only accepts "none"
-
+  // for now.
-  string decryption = 3;
+  string decryption = 2;
-  uint32 xorMode = 4;
+  repeated Fallback fallbacks = 3;
-  int64 seconds_from = 5;
-  int64 seconds_to = 6;
-  string padding = 7;
 }

proxy/vless/inbound/inbound.go

@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"context"
 	gotls "crypto/tls"
-	"encoding/base64"
 	"io"
 	"reflect"
 	"strconv"
@@ -30,8 +29,6 @@ import (
 	"github.com/xtls/xray-core/proxy"
 	"github.com/xtls/xray-core/proxy/vless"
 	"github.com/xtls/xray-core/proxy/vless/encoding"
-	"github.com/xtls/xray-core/proxy/vless/encryption"
-	"github.com/xtls/xray-core/transport"
 	"github.com/xtls/xray-core/transport/internet/reality"
 	"github.com/xtls/xray-core/transport/internet/stat"
 	"github.com/xtls/xray-core/transport/internet/tls"
@@ -70,7 +67,6 @@ type Handler struct {
 	policyManager         policy.Manager
 	validator             vless.Validator
 	dns                   dns.Client
-	decryption            *encryption.ServerInstance
 	fallbacks             map[string]map[string]map[string]*Fallback // or nil
 	// regexps               map[string]*regexp.Regexp       // or nil
 }
@@ -85,19 +81,6 @@ func New(ctx context.Context, config *Config, dc dns.Client, validator vless.Val
 		validator:             validator,
 	}
 
-	if config.Decryption != "" && config.Decryption != "none" {
-		s := strings.Split(config.Decryption, ".")
-		var nfsSKeysBytes [][]byte
-		for _, r := range s {
-			b, _ := base64.RawURLEncoding.DecodeString(r)
-			nfsSKeysBytes = append(nfsSKeysBytes, b)
-		}
-		handler.decryption = &encryption.ServerInstance{}
-		if err := handler.decryption.Init(nfsSKeysBytes, config.XorMode, config.SecondsFrom, config.SecondsTo, config.Padding); err != nil {
-			return nil, errors.New("failed to use decryption").Base(err).AtError()
-		}
-	}
-
 	if config.Fallbacks != nil {
 		handler.fallbacks = make(map[string]map[string]map[string]*Fallback)
 		// handler.regexps = make(map[string]*regexp.Regexp)
@@ -176,9 +159,6 @@ func isMuxAndNotXUDP(request *protocol.RequestHeader, first *buf.Buffer) bool {
 
 // Close implements common.Closable.Close().
 func (h *Handler) Close() error {
-	if h.decryption != nil {
-		h.decryption.Close()
-	}
 	return errors.Combine(common.Close(h.validator))
 }
 
@@ -219,13 +199,6 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 		iConn = statConn.Connection
 	}
 
-	if h.decryption != nil {
-		var err error
-		if connection, err = h.decryption.Handshake(connection, nil); err != nil {
-			return errors.New("ML-KEM-768 handshake failed").Base(err).AtInfo()
-		}
-	}
-
 	sessionPolicy := h.policyManager.ForLevel(0)
 	if err := connection.SetReadDeadline(time.Now().Add(sessionPolicy.Timeouts.Handshake)); err != nil {
 		return errors.New("unable to set read deadline").Base(err).AtWarning()
@@ -505,13 +478,7 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 			case protocol.RequestCommandTCP:
 				var t reflect.Type
 				var p uintptr
-				if commonConn, ok := connection.(*encryption.CommonConn); ok {
+				if tlsConn, ok := iConn.(*tls.Conn); ok {
-					if _, ok := commonConn.Conn.(*encryption.XorConn); ok || !proxy.IsRAWTransportWithoutSecurity(iConn) {
-						inbound.CanSpliceCopy = 3 // full-random xorConn / non-RAW transport / another securityConn should not be penetrated
-					}
-					t = reflect.TypeOf(commonConn).Elem()
-					p = uintptr(unsafe.Pointer(commonConn))
-				} else if tlsConn, ok := iConn.(*tls.Conn); ok {
 					if tlsConn.ConnectionState().Version != gotls.VersionTLS13 {
 						return errors.New(`failed to use `+requestAddons.Flow+`, found outer tls version `, tlsConn.ConnectionState().Version).AtWarning()
 					}
@@ -552,24 +519,89 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 		ctx = session.ContextWithAllowedNetwork(ctx, net.Network_UDP)
 	}
 
+	sessionPolicy = h.policyManager.ForLevel(request.User.Level)
+	ctx, cancel := context.WithCancel(ctx)
+	timer := signal.CancelAfterInactivity(ctx, cancel, sessionPolicy.Timeouts.ConnectionIdle)
+	inbound.Timer = timer
+	ctx = policy.ContextWithBufferPolicy(ctx, sessionPolicy.Buffer)
+
+	link, err := dispatcher.Dispatch(ctx, request.Destination())
+	if err != nil {
+		return errors.New("failed to dispatch request to ", request.Destination()).Base(err).AtWarning()
+	}
+
+	serverReader := link.Reader // .(*pipe.Reader)
+	serverWriter := link.Writer // .(*pipe.Writer)
 	trafficState := proxy.NewTrafficState(userSentID)
-	clientReader := encoding.DecodeBodyAddons(reader, request, requestAddons)
+	postRequest := func() error {
-	if requestAddons.Flow == vless.XRV {
+		defer timer.SetTimeout(sessionPolicy.Timeouts.DownlinkOnly)
-		clientReader = proxy.NewVisionReader(clientReader, trafficState, true, ctx, connection, input, rawInput, nil)
+
+		// default: clientReader := reader
+		clientReader := encoding.DecodeBodyAddons(reader, request, requestAddons)
+
+		var err error
+
+		if requestAddons.Flow == vless.XRV {
+			ctx1 := session.ContextWithInbound(ctx, nil) // TODO enable splice
+			clientReader = proxy.NewVisionReader(clientReader, trafficState, true, ctx1)
+			err = encoding.XtlsRead(clientReader, serverWriter, timer, connection, input, rawInput, trafficState, nil, true, ctx1)
+		} else {
+			// from clientReader.ReadMultiBuffer to serverWriter.WriteMultiBuffer
+			err = buf.Copy(clientReader, serverWriter, buf.UpdateActivity(timer))
+		}
+
+		if err != nil {
+			return errors.New("failed to transfer request payload").Base(err).AtInfo()
+		}
+
+		return nil
 	}
 
-	bufferWriter := buf.NewBufferedWriter(buf.NewWriter(connection))
+	getResponse := func() error {
-	if err := encoding.EncodeResponseHeader(bufferWriter, request, responseAddons); err != nil {
+		defer timer.SetTimeout(sessionPolicy.Timeouts.UplinkOnly)
-		return errors.New("failed to encode response header").Base(err).AtWarning()
-	}
-	clientWriter := encoding.EncodeBodyAddons(bufferWriter, request, requestAddons, trafficState, false, ctx, connection, nil)
-	bufferWriter.SetFlushNext()
 
-	if err := dispatcher.DispatchLink(ctx, request.Destination(), &transport.Link{
+		bufferWriter := buf.NewBufferedWriter(buf.NewWriter(connection))
-		Reader: clientReader,
+		if err := encoding.EncodeResponseHeader(bufferWriter, request, responseAddons); err != nil {
-		Writer: clientWriter},
+			return errors.New("failed to encode response header").Base(err).AtWarning()
-	); err != nil {
+		}
-		return errors.New("failed to dispatch request").Base(err)
+
+		// default: clientWriter := bufferWriter
+		clientWriter := encoding.EncodeBodyAddons(bufferWriter, request, requestAddons, trafficState, false, ctx)
+		multiBuffer, err1 := serverReader.ReadMultiBuffer()
+		if err1 != nil {
+			return err1 // ...
+		}
+		if err := clientWriter.WriteMultiBuffer(multiBuffer); err != nil {
+			return err // ...
+		}
+		// Flush; bufferWriter.WriteMultiBuffer now is bufferWriter.writer.WriteMultiBuffer
+		if err := bufferWriter.SetBuffered(false); err != nil {
+			return errors.New("failed to write A response payload").Base(err).AtWarning()
+		}
+
+		var err error
+		if requestAddons.Flow == vless.XRV {
+			err = encoding.XtlsWrite(serverReader, clientWriter, timer, connection, trafficState, nil, false, ctx)
+		} else {
+			// from serverReader.ReadMultiBuffer to clientWriter.WriteMultiBuffer
+			err = buf.Copy(serverReader, clientWriter, buf.UpdateActivity(timer))
+		}
+		if err != nil {
+			return errors.New("failed to transfer response payload").Base(err).AtInfo()
+		}
+		// Indicates the end of response payload.
+		switch responseAddons.Flow {
+		default:
+		}
+
+		return nil
 	}
+
+	if err := task.Run(ctx, task.OnSuccess(postRequest, task.Close(serverWriter)), getResponse); err != nil {
+		common.Interrupt(serverReader)
+		common.Interrupt(serverWriter)
+		return errors.New("connection ends").Base(err).AtInfo()
+	}
+
 	return nil
 }

proxy/vless/outbound/outbound.go

@@ -4,9 +4,7 @@ import (
 	"bytes"
 	"context"
 	gotls "crypto/tls"
-	"encoding/base64"
 	"reflect"
-	"strings"
 	"time"
 	"unsafe"
 
@@ -26,7 +24,6 @@ import (
 	"github.com/xtls/xray-core/proxy"
 	"github.com/xtls/xray-core/proxy/vless"
 	"github.com/xtls/xray-core/proxy/vless/encoding"
-	"github.com/xtls/xray-core/proxy/vless/encryption"
 	"github.com/xtls/xray-core/transport"
 	"github.com/xtls/xray-core/transport/internet"
 	"github.com/xtls/xray-core/transport/internet/reality"
@@ -46,7 +43,6 @@ type Handler struct {
 	serverPicker  protocol.ServerPicker
 	policyManager policy.Manager
 	cone          bool
-	encryption    *encryption.ClientInstance
 }
 
 // New creates a new VLess outbound handler.
@@ -68,20 +64,6 @@ func New(ctx context.Context, config *Config) (*Handler, error) {
 		cone:          ctx.Value("cone").(bool),
 	}
 
-	a := handler.serverPicker.PickServer().PickUser().Account.(*vless.MemoryAccount)
-	if a.Encryption != "" && a.Encryption != "none" {
-		s := strings.Split(a.Encryption, ".")
-		var nfsPKeysBytes [][]byte
-		for _, r := range s {
-			b, _ := base64.RawURLEncoding.DecodeString(r)
-			nfsPKeysBytes = append(nfsPKeysBytes, b)
-		}
-		handler.encryption = &encryption.ClientInstance{}
-		if err := handler.encryption.Init(nfsPKeysBytes, a.XorMode, a.Seconds, a.Padding); err != nil {
-			return nil, errors.New("failed to use encryption").Base(err).AtError()
-		}
-	}
-
 	return handler, nil
 }
 
@@ -116,13 +98,6 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 	target := ob.Target
 	errors.LogInfo(ctx, "tunneling request to ", target, " via ", rec.Destination().NetAddr())
 
-	if h.encryption != nil {
-		var err error
-		if conn, err = h.encryption.Handshake(conn); err != nil {
-			return errors.New("ML-KEM-768 handshake failed").Base(err).AtInfo()
-		}
-	}
-
 	command := protocol.RequestCommandTCP
 	if target.Network == net.Network_UDP {
 		command = protocol.RequestCommandUDP
@@ -165,13 +140,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 		case protocol.RequestCommandTCP:
 			var t reflect.Type
 			var p uintptr
-			if commonConn, ok := conn.(*encryption.CommonConn); ok {
+			if tlsConn, ok := iConn.(*tls.Conn); ok {
-				if _, ok := commonConn.Conn.(*encryption.XorConn); ok || !proxy.IsRAWTransportWithoutSecurity(iConn) {
-					ob.CanSpliceCopy = 3 // full-random xorConn / non-RAW transport / another securityConn should not be penetrated
-				}
-				t = reflect.TypeOf(commonConn).Elem()
-				p = uintptr(unsafe.Pointer(commonConn))
-			} else if tlsConn, ok := iConn.(*tls.Conn); ok {
 				t = reflect.TypeOf(tlsConn.Conn).Elem()
 				p = uintptr(unsafe.Pointer(tlsConn.Conn))
 			} else if utlsConn, ok := iConn.(*tls.UConn); ok {
@@ -225,7 +194,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 		}
 
 		// default: serverWriter := bufferWriter
-		serverWriter := encoding.EncodeBodyAddons(bufferWriter, request, requestAddons, trafficState, true, ctx, conn, ob)
+		serverWriter := encoding.EncodeBodyAddons(bufferWriter, request, requestAddons, trafficState, true, ctx)
 		if request.Command == protocol.RequestCommandMux && request.Port == 666 {
 			serverWriter = xudp.NewPacketWriter(serverWriter, target, xudp.GetGlobalID(ctx))
 		}
@@ -253,6 +222,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 			return errors.New("failed to write A request payload").Base(err).AtWarning()
 		}
 
+		var err error
 		if requestAddons.Flow == vless.XRV {
 			if tlsConn, ok := iConn.(*tls.Conn); ok {
 				if tlsConn.ConnectionState().Version != gotls.VersionTLS13 {
@@ -263,8 +233,12 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 					return errors.New(`failed to use `+requestAddons.Flow+`, found outer tls version `, utlsConn.ConnectionState().Version).AtWarning()
 				}
 			}
+			ctx1 := session.ContextWithInbound(ctx, nil) // TODO enable splice
+			err = encoding.XtlsWrite(clientReader, serverWriter, timer, conn, trafficState, ob, true, ctx1)
+		} else {
+			// from clientReader.ReadMultiBuffer to serverWriter.WriteMultiBuffer
+			err = buf.Copy(clientReader, serverWriter, buf.UpdateActivity(timer))
 		}
-		err := buf.Copy(clientReader, serverWriter, buf.UpdateActivity(timer))
 		if err != nil {
 			return errors.New("failed to transfer request payload").Base(err).AtInfo()
 		}
@@ -287,7 +261,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 		// default: serverReader := buf.NewReader(conn)
 		serverReader := encoding.DecodeBodyAddons(conn, request, responseAddons)
 		if requestAddons.Flow == vless.XRV {
-			serverReader = proxy.NewVisionReader(serverReader, trafficState, false, ctx, conn, input, rawInput, ob)
+			serverReader = proxy.NewVisionReader(serverReader, trafficState, false, ctx)
 		}
 		if request.Command == protocol.RequestCommandMux && request.Port == 666 {
 			if requestAddons.Flow == vless.XRV {
@@ -298,7 +272,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 		}
 
 		if requestAddons.Flow == vless.XRV {
-			err = encoding.XtlsRead(serverReader, clientWriter, timer, conn, trafficState, false, ctx)
+			err = encoding.XtlsRead(serverReader, clientWriter, timer, conn, input, rawInput, trafficState, ob, false, ctx)
 		} else {
 			// from serverReader.ReadMultiBuffer to clientWriter.WriteMultiBuffer
 			err = buf.Copy(serverReader, clientWriter, buf.UpdateActivity(timer))

proxy/vmess/aead/authid.go

@@ -10,10 +10,10 @@ import (
 	"hash/crc32"
 	"io"
 	"math"
+	"time"
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/antireplay"
-	"github.com/xtls/xray-core/proxy/vmess/vtime"
 )
 
 var (
@@ -105,7 +105,7 @@ func (a *AuthIDDecoderHolder) Match(authID [16]byte) (interface{}, error) {
 			continue
 		}
 
-		if math.Abs(math.Abs(float64(t))-float64(vtime.Now().Unix())) > 120 {
+		if math.Abs(math.Abs(float64(t))-float64(time.Now().Unix())) > 120 {
 			continue
 		}
 

proxy/vmess/aead/encrypt.go

@@ -5,14 +5,14 @@ import (
 	"crypto/rand"
 	"encoding/binary"
 	"io"
+	"time"
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/crypto"
-	"github.com/xtls/xray-core/proxy/vmess/vtime"
 )
 
 func SealVMessAEADHeader(key [16]byte, data []byte) []byte {
-	generatedAuthID := CreateAuthID(key[:], vtime.Now().Unix())
+	generatedAuthID := CreateAuthID(key[:], time.Now().Unix())
 
 	connectionNonce := make([]byte, 8)
 	if _, err := io.ReadFull(rand.Reader, connectionNonce); err != nil {

proxy/vmess/vtime/vtime.go

@@ -1,74 +0,0 @@
-package vtime
-
-import (
-	"context"
-	"runtime"
-	"sync"
-	"sync/atomic"
-	"time"
-
-	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/platform"
-	"github.com/xtls/xray-core/common/protocol/http"
-)
-
-var timeOffset atomic.Pointer[time.Duration]
-var initOnce sync.Once
-
-func updateTimeMonitor(ctx context.Context, domain string) {
-	for {
-		select {
-		case <-ctx.Done():
-			return
-		case <-time.After(10 * time.Minute):
-			err := updateTime(domain)
-			if err != nil {
-				errors.LogError(ctx, err)
-			}
-		}
-	}
-}
-
-func updateTime(domain string) error {
-	httpClient := http.NewClient()
-	resp, err := httpClient.Get(domain)
-	if err != nil {
-		return errors.New("Failed to access monitor domain").Base(err)
-	}
-	timeHeader := resp.Header.Get("Date")
-	remoteTime, err := time.Parse(time.RFC1123, timeHeader)
-	if err != nil {
-		return errors.New("Failed to parse time from monitor domain").Base(err)
-	}
-	localTime := time.Now()
-	offset := remoteTime.Sub(localTime)
-	if offset < 2*time.Second && offset > -2*time.Second {
-		errors.LogWarning(context.Background(), "Time offset too small, ignoring:", offset)
-		return nil
-	}
-	timeOffset.Store(&offset)
-	return nil
-}
-
-func Now() time.Time {
-	initOnce.Do(func() {
-		timeOffset.Store(new(time.Duration))
-		go func() {
-			domain := platform.NewEnvFlag("xray.vmess.time.domain").GetValue(func() string { return "https://apple.com" })
-			if domain == "" {
-				errors.LogError(context.Background(), "vmess time domain is empty, skip time sync")
-				return
-			}
-			err := updateTime(domain)
-			if err != nil {
-				errors.LogError(context.Background(), err)
-			}
-			errors.LogWarning(context.Background(), "Initial time offset for vmess:", timeOffset.Load())
-			// only one sync should be enough, so disable periodic update for now
-			//go updateTimeMonitor(context.TODO(), domain)
-		}()
-		runtime.Gosched()
-	})
-	offset := timeOffset.Load()
-	return time.Now().Add(*offset)
-}

proxy/wireguard/client.go

@@ -129,8 +129,7 @@ func (h *Handler) processWireGuard(ctx context.Context, dialer internet.Dialer)
 	}
 	defer func() {
 		if err != nil {
-			h.bind.Close()
+			_ = h.bind.Close()
-			h.bind = nil
 		}
 	}()
 

testing/scenarios/policy_test.go

@@ -249,7 +249,7 @@ func TestZeroBuffer(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errg errgroup.Group
-	for range 3 {
+	for i := 0; i < 10; i++ {
 		errg.Go(testTCPConn(clientPort, 10240*1024, time.Second*20))
 	}
 	if err := errg.Wait(); err != nil {

testing/scenarios/reverse_test.go

@@ -182,7 +182,7 @@ func TestReverseProxy(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errg errgroup.Group
-	for range 32 {
+	for i := 0; i < 32; i++ {
 		errg.Go(testTCPConn(externalPort, 10240*1024, time.Second*40))
 	}
 
@@ -374,7 +374,7 @@ func TestReverseProxyLongRunning(t *testing.T) {
 
 	defer CloseAllServers(servers)
 
-	for range 4096 {
+	for i := 0; i < 4096; i++ {
 		if err := testTCPConn(externalPort, 1024, time.Second*20)(); err != nil {
 			t.Error(err)
 		}

testing/scenarios/shadowsocks_2022_test.go

@@ -124,7 +124,7 @@ func testShadowsocks2022Tcp(t *testing.T, method string, password string) {
 	defer CloseAllServers(servers)
 
 	var errGroup errgroup.Group
-	for range 3 {
+	for i := 0; i < 10; i++ {
 		errGroup.Go(testTCPConn(clientPort, 10240*1024, time.Second*20))
 	}
 
@@ -207,7 +207,7 @@ func testShadowsocks2022Udp(t *testing.T, method string, password string) {
 	defer CloseAllServers(servers)
 
 	var errGroup errgroup.Group
-	for range 3 {
+	for i := 0; i < 2; i++ {
 		errGroup.Go(testUDPConn(udpClientPort, 1024, time.Second*5))
 	}
 

testing/scenarios/shadowsocks_test.go

@@ -96,7 +96,7 @@ func TestShadowsocksChaCha20Poly1305TCP(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errGroup errgroup.Group
-	for range 3 {
+	for i := 0; i < 10; i++ {
 		errGroup.Go(testTCPConn(clientPort, 10240*1024, time.Second*20))
 	}
 	if err := errGroup.Wait(); err != nil {
@@ -192,7 +192,7 @@ func TestShadowsocksAES256GCMTCP(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errGroup errgroup.Group
-	for range 3 {
+	for i := 0; i < 10; i++ {
 		errGroup.Go(testTCPConn(clientPort, 10240*1024, time.Second*20))
 	}
 
@@ -289,7 +289,7 @@ func TestShadowsocksAES128GCMUDP(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errGroup errgroup.Group
-	for range 3 {
+	for i := 0; i < 2; i++ {
 		errGroup.Go(testUDPConn(clientPort, 1024, time.Second*5))
 	}
 	if err := errGroup.Wait(); err != nil {
@@ -391,7 +391,7 @@ func TestShadowsocksAES128GCMUDPMux(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errGroup errgroup.Group
-	for range 3 {
+	for i := 0; i < 2; i++ {
 		errGroup.Go(testUDPConn(clientPort, 1024, time.Second*5))
 	}
 	if err := errGroup.Wait(); err != nil {
@@ -477,7 +477,7 @@ func TestShadowsocksNone(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errGroup errgroup.Group
-	for range 3 {
+	for i := 0; i < 10; i++ {
 		errGroup.Go(testTCPConn(clientPort, 10240*1024, time.Second*20))
 	}
 

testing/scenarios/tls_test.go

@@ -240,7 +240,7 @@ func TestAutoIssuingCertificate(t *testing.T) {
 	common.Must(err)
 	defer CloseAllServers(servers)
 
-	for range 3 {
+	for i := 0; i < 10; i++ {
 		if err := testTCPConn(clientPort, 1024, time.Second*20)(); err != nil {
 			t.Error(err)
 		}
@@ -449,7 +449,7 @@ func TestTLSOverWebSocket(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errg errgroup.Group
-	for range 3 {
+	for i := 0; i < 10; i++ {
 		errg.Go(testTCPConn(clientPort, 10240*1024, time.Second*20))
 	}
 	if err := errg.Wait(); err != nil {
@@ -565,7 +565,7 @@ func TestGRPC(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errg errgroup.Group
-	for range 3 {
+	for i := 0; i < 10; i++ {
 		errg.Go(testTCPConn(clientPort, 1024*10240, time.Second*40))
 	}
 	if err := errg.Wait(); err != nil {
@@ -681,7 +681,7 @@ func TestGRPCMultiMode(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errg errgroup.Group
-	for range 3 {
+	for i := 0; i < 10; i++ {
 		errg.Go(testTCPConn(clientPort, 1024*10240, time.Second*40))
 	}
 	if err := errg.Wait(); err != nil {

testing/scenarios/vless_test.go

@@ -117,7 +117,7 @@ func TestVless(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errg errgroup.Group
-	for range 3 {
+	for i := 0; i < 10; i++ {
 		errg.Go(testTCPConn(clientPort, 1024*1024, time.Second*30))
 	}
 	if err := errg.Wait(); err != nil {
@@ -239,7 +239,7 @@ func TestVlessTls(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errg errgroup.Group
-	for range 3 {
+	for i := 0; i < 10; i++ {
 		errg.Go(testTCPConn(clientPort, 1024*1024, time.Second*30))
 	}
 	if err := errg.Wait(); err != nil {
@@ -363,7 +363,7 @@ func TestVlessXtlsVision(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errg errgroup.Group
-	for range 3 {
+	for i := 0; i < 10; i++ {
 		errg.Go(testTCPConn(clientPort, 1024*1024, time.Second*30))
 	}
 	if err := errg.Wait(); err != nil {
@@ -502,7 +502,7 @@ func TestVlessXtlsVisionReality(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errg errgroup.Group
-	for range 3 {
+	for i := 0; i < 1; i++ {
 		errg.Go(testTCPConn(clientPort, 1024*1024, time.Second*30))
 	}
 	if err := errg.Wait(); err != nil {

testing/scenarios/vmess_test.go

@@ -260,7 +260,7 @@ func TestVMessGCM(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errg errgroup.Group
-	for range 3 {
+	for i := 0; i < 10; i++ {
 		errg.Go(testTCPConn(clientPort, 10240*1024, time.Second*40))
 	}
 
@@ -366,7 +366,7 @@ func TestVMessGCMReadv(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errg errgroup.Group
-	for range 3 {
+	for i := 0; i < 10; i++ {
 		errg.Go(testTCPConn(clientPort, 10240*1024, time.Second*40))
 	}
 	if err := errg.Wait(); err != nil {
@@ -465,7 +465,7 @@ func TestVMessGCMUDP(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errg errgroup.Group
-	for range 3 {
+	for i := 0; i < 2; i++ {
 		errg.Go(testUDPConn(clientPort, 1024, time.Second*5))
 	}
 	if err := errg.Wait(); err != nil {
@@ -564,7 +564,7 @@ func TestVMessChacha20(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errg errgroup.Group
-	for range 3 {
+	for i := 0; i < 10; i++ {
 		errg.Go(testTCPConn(clientPort, 10240*1024, time.Second*20))
 	}
 
@@ -664,7 +664,7 @@ func TestVMessNone(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errg errgroup.Group
-	for range 3 {
+	for i := 0; i < 10; i++ {
 		errg.Go(testTCPConn(clientPort, 1024*1024, time.Second*30))
 	}
 	if err := errg.Wait(); err != nil {
@@ -771,7 +771,7 @@ func TestVMessKCP(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errg errgroup.Group
-	for range 3 {
+	for i := 0; i < 2; i++ {
 		errg.Go(testTCPConn(clientPort, 1024, time.Minute*2))
 	}
 	if err := errg.Wait(); err != nil {
@@ -915,7 +915,7 @@ func TestVMessKCPLarge(t *testing.T) {
 	common.Must(err)
 
 	var errg errgroup.Group
-	for range 3 {
+	for i := 0; i < 2; i++ {
 		errg.Go(testTCPConn(clientPort, 513*1024, time.Minute*5))
 	}
 	if err := errg.Wait(); err != nil {
@@ -1026,7 +1026,7 @@ func TestVMessGCMMux(t *testing.T) {
 
 	for range "abcd" {
 		var errg errgroup.Group
-		for range 3 {
+		for i := 0; i < 16; i++ {
 			errg.Go(testTCPConn(clientPort, 10240, time.Second*20))
 		}
 		if err := errg.Wait(); err != nil {
@@ -1152,7 +1152,7 @@ func TestVMessGCMMuxUDP(t *testing.T) {
 
 	for range "ab" {
 		var errg errgroup.Group
-		for range 3 {
+		for i := 0; i < 2; i++ {
 			errg.Go(testTCPConn(clientPort, 1024, time.Second*10))
 			errg.Go(testUDPConn(clientUDPPort, 1024, time.Second*10))
 		}
@@ -1259,7 +1259,7 @@ func TestVMessZero(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errg errgroup.Group
-	for range 3 {
+	for i := 0; i < 10; i++ {
 		errg.Go(testTCPConn(clientPort, 1024*1024, time.Second*30))
 	}
 	if err := errg.Wait(); err != nil {
@@ -1361,7 +1361,7 @@ func TestVMessGCMLengthAuth(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errg errgroup.Group
-	for range 3 {
+	for i := 0; i < 10; i++ {
 		errg.Go(testTCPConn(clientPort, 10240*1024, time.Second*40))
 	}
 
@@ -1465,7 +1465,7 @@ func TestVMessGCMLengthAuthPlusNoTerminationSignal(t *testing.T) {
 	defer CloseAllServers(servers)
 
 	var errg errgroup.Group
-	for range 3 {
+	for i := 0; i < 10; i++ {
 		errg.Go(testTCPConn(clientPort, 10240*1024, time.Second*40))
 	}
 

transport/internet/udp/dispatcher.go

@@ -22,24 +22,8 @@ type ResponseCallback func(ctx context.Context, packet *udp.Packet)
 
 type connEntry struct {
 	link   *transport.Link
-	timer  *signal.ActivityTimer
+	timer  signal.ActivityUpdater
 	cancel context.CancelFunc
-	closed bool
-}
-
-func (c *connEntry) Close() error {
-	c.timer.SetTimeout(0)
-	return nil
-}
-
-func (c *connEntry) terminate() {
-	if c.closed {
-		panic("terminate called more than once")
-	}
-	c.closed = true
-	c.cancel()
-	common.Interrupt(c.link.Reader)
-	common.Interrupt(c.link.Writer)
 }
 
 type Dispatcher struct {
@@ -48,7 +32,6 @@ type Dispatcher struct {
 	dispatcher routing.Dispatcher
 	callback   ResponseCallback
 	callClose  func() error
-	closed     bool
 }
 
 func NewDispatcher(dispatcher routing.Dispatcher, callback ResponseCallback) *Dispatcher {
@@ -61,9 +44,13 @@ func NewDispatcher(dispatcher routing.Dispatcher, callback ResponseCallback) *Di
 func (v *Dispatcher) RemoveRay() {
 	v.Lock()
 	defer v.Unlock()
-	v.closed = true
+	v.removeRay()
+}
+
+func (v *Dispatcher) removeRay() {
 	if v.conn != nil {
-		v.conn.Close()
+		common.Interrupt(v.conn.link.Reader)
+		common.Close(v.conn.link.Writer)
 		v.conn = nil
 	}
 }
@@ -72,34 +59,35 @@ func (v *Dispatcher) getInboundRay(ctx context.Context, dest net.Destination) (*
 	v.Lock()
 	defer v.Unlock()
 
-	if v.closed {
-		return nil, errors.New("dispatcher is closed")
-	}
-
 	if v.conn != nil {
-		if v.conn.closed {
+		return v.conn, nil
-			v.conn = nil
-		} else {
-			return v.conn, nil
-		}
 	}
 
 	errors.LogInfo(ctx, "establishing new connection for ", dest)
 
 	ctx, cancel := context.WithCancel(ctx)
+	entry := &connEntry{}
+	removeRay := func() {
+		v.Lock()
+		defer v.Unlock()
+		// sometimes the entry is already removed by others, don't close again
+		if entry == v.conn {
+			cancel()
+			v.removeRay()
+		}
+	}
+	timer := signal.CancelAfterInactivity(ctx, removeRay, time.Minute)
 
 	link, err := v.dispatcher.Dispatch(ctx, dest)
 	if err != nil {
-		cancel()
 		return nil, errors.New("failed to dispatch request to ", dest).Base(err)
 	}
 
-	entry := &connEntry{
+	*entry = connEntry{
 		link:   link,
-		cancel: cancel,
+		timer:  timer,
+		cancel: removeRay,
 	}
-
-	entry.timer = signal.CancelAfterInactivity(ctx, entry.terminate, time.Minute)
 	v.conn = entry
 	go handleInput(ctx, entry, dest, v.callback, v.callClose)
 	return entry, nil
@@ -118,7 +106,7 @@ func (v *Dispatcher) Dispatch(ctx context.Context, destination net.Destination,
 	if outputStream != nil {
 		if err := outputStream.WriteMultiBuffer(buf.MultiBuffer{payload}); err != nil {
 			errors.LogInfoInner(ctx, err, "failed to write first UDP payload")
-			conn.Close()
+			conn.cancel()
 			return
 		}
 	}
@@ -126,7 +114,7 @@ func (v *Dispatcher) Dispatch(ctx context.Context, destination net.Destination,
 
 func handleInput(ctx context.Context, conn *connEntry, dest net.Destination, callback ResponseCallback, callClose func() error) {
 	defer func() {
-		conn.Close()
+		conn.cancel()
 		if callClose != nil {
 			callClose()
 		}

transport/pipe/impl.go

@@ -200,19 +200,16 @@ func (p *pipe) Interrupt() {
 	p.Lock()
 	defer p.Unlock()
 
-	if !p.data.IsEmpty() {
-		buf.ReleaseMulti(p.data)
-		p.data = nil
-		if p.state == closed {
-			p.state = errord
-		}
-	}
-
 	if p.state == closed || p.state == errord {
 		return
 	}
 
 	p.state = errord
 
+	if !p.data.IsEmpty() {
+		buf.ReleaseMulti(p.data)
+		p.data = nil
+	}
+
 	common.Must(p.done.Close())
 }