Fix conntrack return pointer

This fix align sing-box's behaviour with V2Ray when it comes to processing ? at the end of WebSocket's path.

README.md

@@ -8,10 +8,6 @@ The universal proxy platform.
 
 https://sing-box.sagernet.org
 
-## Support
-
-https://community.sagernet.org/c/sing-box/
-
 ## License
 
 ```

adapter/router.go

@@ -37,7 +37,6 @@ type Router interface {
 	LookupDefault(ctx context.Context, domain string) ([]netip.Addr, error)
 
 	InterfaceFinder() control.InterfaceFinder
-	UpdateInterfaces() error
 	DefaultInterface() string
 	AutoDetectInterface() bool
 	AutoDetectInterfaceFunc() control.Func

box.go

@@ -62,7 +62,6 @@ func New(options Options) (*Box, error) {
 		defaultLogWriter = io.Discard
 	}
 	logFactory, err := log.New(log.Options{
-		Context:        ctx,
 		Options:        common.PtrValueOrDefault(options.Log),
 		Observable:     needClashAPI,
 		DefaultWriter:  defaultLogWriter,
@@ -134,16 +133,10 @@ func New(options Options) (*Box, error) {
 	if err != nil {
 		return nil, err
 	}
-	if options.PlatformInterface != nil {
-		err = options.PlatformInterface.Initialize(ctx, router)
-		if err != nil {
-			return nil, E.Cause(err, "initialize platform interface")
-		}
-	}
 	preServices := make(map[string]adapter.Service)
 	postServices := make(map[string]adapter.Service)
 	if needClashAPI {
-		clashServer, err := experimental.NewClashServer(ctx, router, logFactory.(log.ObservableFactory), common.PtrValueOrDefault(options.Experimental.ClashAPI))
+		clashServer, err := experimental.NewClashServer(router, logFactory.(log.ObservableFactory), common.PtrValueOrDefault(options.Experimental.ClashAPI))
 		if err != nil {
 			return nil, E.Cause(err, "create clash api server")
 		}

cmd/sing-box/debug.go

@@ -0,0 +1,44 @@
+//go:build debug
+
+package main
+
+import (
+	"encoding/json"
+	"net/http"
+	_ "net/http/pprof"
+	"runtime"
+	"runtime/debug"
+
+	"github.com/sagernet/sing-box/common/badjson"
+	"github.com/sagernet/sing-box/log"
+
+	"github.com/dustin/go-humanize"
+)
+
+func init() {
+	http.HandleFunc("/debug/gc", func(writer http.ResponseWriter, request *http.Request) {
+		writer.WriteHeader(http.StatusNoContent)
+		go debug.FreeOSMemory()
+	})
+	http.HandleFunc("/debug/memory", func(writer http.ResponseWriter, request *http.Request) {
+		var memStats runtime.MemStats
+		runtime.ReadMemStats(&memStats)
+
+		var memObject badjson.JSONObject
+		memObject.Put("heap", humanize.IBytes(memStats.HeapInuse))
+		memObject.Put("stack", humanize.IBytes(memStats.StackInuse))
+		memObject.Put("idle", humanize.IBytes(memStats.HeapIdle-memStats.HeapReleased))
+		memObject.Put("goroutines", runtime.NumGoroutine())
+		memObject.Put("rss", rusageMaxRSS())
+
+		encoder := json.NewEncoder(writer)
+		encoder.SetIndent("", "  ")
+		encoder.Encode(memObject)
+	})
+	go func() {
+		err := http.ListenAndServe("0.0.0.0:8964", nil)
+		if err != nil {
+			log.Debug(err)
+		}
+	}()
+}

cmd/sing-box/debug_linux.go

@@ -1,4 +1,6 @@
-package box
+//go:build debug
+
+package main
 
 import (
 	"runtime"

cmd/sing-box/debug_stub.go

@@ -1,6 +1,6 @@
-//go:build !linux
+//go:build debug && !linux
 
-package box
+package main
 
 func rusageMaxRSS() float64 {
 	return -1

common/badtls/badtls.go

@@ -1,4 +1,4 @@
-//go:build go1.20 && !go1.21
+//go:build go1.19 && !go1.20
 
 package badtls
 
@@ -14,60 +14,39 @@ import (
 	"sync/atomic"
 	"unsafe"
 
-	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/buf"
 	"github.com/sagernet/sing/common/bufio"
 	E "github.com/sagernet/sing/common/exceptions"
 	N "github.com/sagernet/sing/common/network"
-	aTLS "github.com/sagernet/sing/common/tls"
 )
 
 type Conn struct {
 	*tls.Conn
-	writer              N.ExtendedWriter
-	isHandshakeComplete *atomic.Bool
-	activeCall          *atomic.Int32
-	closeNotifySent     *bool
-	version             *uint16
-	rand                io.Reader
-	halfAccess          *sync.Mutex
-	halfError           *error
-	cipher              cipher.AEAD
-	explicitNonceLen    int
-	halfPtr             uintptr
-	halfSeq             []byte
-	halfScratchBuf      []byte
+	writer           N.ExtendedWriter
+	activeCall       *int32
+	closeNotifySent  *bool
+	version          *uint16
+	rand             io.Reader
+	halfAccess       *sync.Mutex
+	halfError        *error
+	cipher           cipher.AEAD
+	explicitNonceLen int
+	halfPtr          uintptr
+	halfSeq          []byte
+	halfScratchBuf   []byte
 }
 
-func TryCreate(conn aTLS.Conn) aTLS.Conn {
-	tlsConn, ok := conn.(*tls.Conn)
-	if !ok {
-		return conn
-	}
-	badConn, err := Create(tlsConn)
-	if err != nil {
-		log.Warn("initialize badtls: ", err)
-		return conn
-	}
-	return badConn
-}
-
-func Create(conn *tls.Conn) (aTLS.Conn, error) {
-	rawConn := reflect.Indirect(reflect.ValueOf(conn))
-	rawIsHandshakeComplete := rawConn.FieldByName("isHandshakeComplete")
-	if !rawIsHandshakeComplete.IsValid() || rawIsHandshakeComplete.Kind() != reflect.Struct {
-		return nil, E.New("badtls: invalid isHandshakeComplete")
-	}
-	isHandshakeComplete := (*atomic.Bool)(unsafe.Pointer(rawIsHandshakeComplete.UnsafeAddr()))
-	if !isHandshakeComplete.Load() {
+func Create(conn *tls.Conn) (TLSConn, error) {
+	if !handshakeComplete(conn) {
 		return nil, E.New("handshake not finished")
 	}
+	rawConn := reflect.Indirect(reflect.ValueOf(conn))
 	rawActiveCall := rawConn.FieldByName("activeCall")
-	if !rawActiveCall.IsValid() || rawActiveCall.Kind() != reflect.Struct {
+	if !rawActiveCall.IsValid() || rawActiveCall.Kind() != reflect.Int32 {
 		return nil, E.New("badtls: invalid active call")
 	}
-	activeCall := (*atomic.Int32)(unsafe.Pointer(rawActiveCall.UnsafeAddr()))
+	activeCall := (*int32)(unsafe.Pointer(rawActiveCall.UnsafeAddr()))
 	rawHalfConn := rawConn.FieldByName("out")
 	if !rawHalfConn.IsValid() || rawHalfConn.Kind() != reflect.Struct {
 		return nil, E.New("badtls: invalid half conn")
@@ -129,20 +108,19 @@ func Create(conn *tls.Conn) (aTLS.Conn, error) {
 	}
 	halfScratchBuf := rawHalfScratchBuf.Bytes()
 	return &Conn{
-		Conn:                conn,
-		writer:              bufio.NewExtendedWriter(conn.NetConn()),
-		isHandshakeComplete: isHandshakeComplete,
-		activeCall:          activeCall,
-		closeNotifySent:     closeNotifySent,
-		version:             version,
-		halfAccess:          halfAccess,
-		halfError:           halfError,
-		cipher:              aeadCipher,
-		explicitNonceLen:    explicitNonceLen,
-		rand:                randReader,
-		halfPtr:             rawHalfConn.UnsafeAddr(),
-		halfSeq:             halfSeq,
-		halfScratchBuf:      halfScratchBuf,
+		Conn:             conn,
+		writer:           bufio.NewExtendedWriter(conn.NetConn()),
+		activeCall:       activeCall,
+		closeNotifySent:  closeNotifySent,
+		version:          version,
+		halfAccess:       halfAccess,
+		halfError:        halfError,
+		cipher:           aeadCipher,
+		explicitNonceLen: explicitNonceLen,
+		rand:             randReader,
+		halfPtr:          rawHalfConn.UnsafeAddr(),
+		halfSeq:          halfSeq,
+		halfScratchBuf:   halfScratchBuf,
 	}, nil
 }
 
@@ -152,15 +130,15 @@ func (c *Conn) WriteBuffer(buffer *buf.Buffer) error {
 		return common.Error(c.Write(buffer.Bytes()))
 	}
 	for {
-		x := c.activeCall.Load()
+		x := atomic.LoadInt32(c.activeCall)
 		if x&1 != 0 {
 			return net.ErrClosed
 		}
-		if c.activeCall.CompareAndSwap(x, x+2) {
+		if atomic.CompareAndSwapInt32(c.activeCall, x, x+2) {
 			break
 		}
 	}
-	defer c.activeCall.Add(-2)
+	defer atomic.AddInt32(c.activeCall, -2)
 	c.halfAccess.Lock()
 	defer c.halfAccess.Unlock()
 	if err := *c.halfError; err != nil {
@@ -208,7 +186,6 @@ func (c *Conn) WriteBuffer(buffer *buf.Buffer) error {
 		binary.BigEndian.PutUint16(outBuf[3:], uint16(dataLen+c.explicitNonceLen+c.cipher.Overhead()))
 	}
 	incSeq(c.halfPtr)
-	log.Trace("badtls write ", buffer.Len())
 	return c.writer.WriteBuffer(buffer)
 }
 

common/badtls/badtls_stub.go

@@ -1,4 +1,4 @@
-//go:build !go1.19 || go1.21
+//go:build !go1.19 || go1.20
 
 package badtls
 

common/badtls/conn.go

@@ -0,0 +1,13 @@
+package badtls
+
+import (
+	"context"
+	"crypto/tls"
+	"net"
+)
+
+type TLSConn interface {
+	net.Conn
+	HandshakeContext(ctx context.Context) error
+	ConnectionState() tls.ConnectionState
+}

common/badtls/link.go

@@ -1,8 +1,9 @@
-//go:build go1.20 && !go.1.21
+//go:build go1.19 && !go.1.20
 
 package badtls
 
 import (
+	"crypto/tls"
 	"reflect"
 	_ "unsafe"
 )
@@ -15,6 +16,9 @@ const (
 //go:linkname errShutdown crypto/tls.errShutdown
 var errShutdown error
 
+//go:linkname handshakeComplete crypto/tls.(*Conn).handshakeComplete
+func handshakeComplete(conn *tls.Conn) bool
+
 //go:linkname incSeq crypto/tls.(*halfConn).incSeq
 func incSeq(conn uintptr)
 

common/dialer/default.go

@@ -7,6 +7,7 @@ import (
 
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/common/dialer/conntrack"
+	"github.com/sagernet/sing-box/common/warning"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing/common/control"
@@ -16,6 +17,41 @@ import (
 	"github.com/sagernet/tfo-go"
 )
 
+var warnBindInterfaceOnUnsupportedPlatform = warning.New(
+	func() bool {
+		return !(C.IsLinux || C.IsWindows || C.IsDarwin)
+	},
+	"outbound option `bind_interface` is only supported on Linux and Windows",
+)
+
+var warnRoutingMarkOnUnsupportedPlatform = warning.New(
+	func() bool {
+		return !C.IsLinux
+	},
+	"outbound option `routing_mark` is only supported on Linux",
+)
+
+var warnReuseAdderOnUnsupportedPlatform = warning.New(
+	func() bool {
+		return !(C.IsDarwin || C.IsDragonfly || C.IsFreebsd || C.IsLinux || C.IsNetbsd || C.IsOpenbsd || C.IsSolaris || C.IsWindows)
+	},
+	"outbound option `reuse_addr` is unsupported on current platform",
+)
+
+var warnProtectPathOnNonAndroid = warning.New(
+	func() bool {
+		return !C.IsAndroid
+	},
+	"outbound option `protect_path` is only supported on Android",
+)
+
+var warnTFOOnUnsupportedPlatform = warning.New(
+	func() bool {
+		return !(C.IsDarwin || C.IsFreebsd || C.IsLinux || C.IsWindows)
+	},
+	"outbound option `tcp_fast_open` is unsupported on current platform",
+)
+
 type DefaultDialer struct {
 	dialer4     tfo.Dialer
 	dialer6     tfo.Dialer
@@ -30,6 +66,7 @@ func NewDefault(router adapter.Router, options option.DialerOptions) *DefaultDia
 	var dialer net.Dialer
 	var listener net.ListenConfig
 	if options.BindInterface != "" {
+		warnBindInterfaceOnUnsupportedPlatform.Check()
 		bindFunc := control.BindToInterface(router.InterfaceFinder(), options.BindInterface, -1)
 		dialer.Control = control.Append(dialer.Control, bindFunc)
 		listener.Control = control.Append(listener.Control, bindFunc)
@@ -43,6 +80,7 @@ func NewDefault(router adapter.Router, options option.DialerOptions) *DefaultDia
 		listener.Control = control.Append(listener.Control, bindFunc)
 	}
 	if options.RoutingMark != 0 {
+		warnRoutingMarkOnUnsupportedPlatform.Check()
 		dialer.Control = control.Append(dialer.Control, control.RoutingMark(options.RoutingMark))
 		listener.Control = control.Append(listener.Control, control.RoutingMark(options.RoutingMark))
 	} else if router.DefaultMark() != 0 {
@@ -50,9 +88,11 @@ func NewDefault(router adapter.Router, options option.DialerOptions) *DefaultDia
 		listener.Control = control.Append(listener.Control, control.RoutingMark(router.DefaultMark()))
 	}
 	if options.ReuseAddr {
+		warnReuseAdderOnUnsupportedPlatform.Check()
 		listener.Control = control.Append(listener.Control, control.ReuseAddr())
 	}
 	if options.ProtectPath != "" {
+		warnProtectPathOnNonAndroid.Check()
 		dialer.Control = control.Append(dialer.Control, control.ProtectPath(options.ProtectPath))
 		listener.Control = control.Append(listener.Control, control.ProtectPath(options.ProtectPath))
 	}
@@ -61,6 +101,9 @@ func NewDefault(router adapter.Router, options option.DialerOptions) *DefaultDia
 	} else {
 		dialer.Timeout = C.TCPTimeout
 	}
+	if options.TCPFastOpen {
+		warnTFOOnUnsupportedPlatform.Check()
+	}
 	var udpFragment bool
 	if options.UDPFragment != nil {
 		udpFragment = *options.UDPFragment

common/mux/client.go

@@ -11,6 +11,7 @@ import (
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/buf"
 	"github.com/sagernet/sing/common/bufio"
+	"github.com/sagernet/sing/common/bufio/deadline"
 	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
@@ -28,10 +29,9 @@ type Client struct {
 	maxConnections int
 	minStreams     int
 	maxStreams     int
-	paddingEnabled bool
 }
 
-func NewClient(ctx context.Context, dialer N.Dialer, protocol Protocol, maxConnections int, minStreams int, maxStreams int, paddingEnabled bool) (*Client, error) {
+func NewClient(ctx context.Context, dialer N.Dialer, protocol Protocol, maxConnections int, minStreams int, maxStreams int) *Client {
 	return &Client{
 		ctx:            ctx,
 		dialer:         dialer,
@@ -39,11 +39,10 @@ func NewClient(ctx context.Context, dialer N.Dialer, protocol Protocol, maxConne
 		maxConnections: maxConnections,
 		minStreams:     minStreams,
 		maxStreams:     maxStreams,
-		paddingEnabled: paddingEnabled,
-	}, nil
+	}
 }
 
-func NewClientWithOptions(ctx context.Context, dialer N.Dialer, options option.MultiplexOptions) (*Client, error) {
+func NewClientWithOptions(ctx context.Context, dialer N.Dialer, options option.MultiplexOptions) (N.Dialer, error) {
 	if !options.Enabled {
 		return nil, nil
 	}
@@ -54,7 +53,7 @@ func NewClientWithOptions(ctx context.Context, dialer N.Dialer, options option.M
 	if err != nil {
 		return nil, err
 	}
-	return NewClient(ctx, dialer, protocol, options.MaxConnections, options.MinStreams, options.MaxStreams, options.Padding)
+	return NewClient(ctx, dialer, protocol, options.MaxConnections, options.MinStreams, options.MaxStreams), nil
 }
 
 func (c *Client) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
@@ -70,7 +69,7 @@ func (c *Client) DialContext(ctx context.Context, network string, destination M.
 		if err != nil {
 			return nil, err
 		}
-		return bufio.NewUnbindPacketConn(&ClientPacketConn{ExtendedConn: bufio.NewExtendedConn(stream), destination: destination}), nil
+		return bufio.NewBindPacketConn(deadline.NewPacketConn(bufio.NewNetPacketConn(&ClientPacketConn{ExtendedConn: bufio.NewExtendedConn(stream), destination: destination})), destination), nil
 	default:
 		return nil, E.Extend(N.ErrUnknownNetwork, network)
 	}
@@ -81,7 +80,7 @@ func (c *Client) ListenPacket(ctx context.Context, destination M.Socksaddr) (net
 	if err != nil {
 		return nil, err
 	}
-	return &ClientPacketAddrConn{ExtendedConn: bufio.NewExtendedConn(stream), destination: destination}, nil
+	return deadline.NewPacketConn(&ClientPacketAddrConn{ExtendedConn: bufio.NewExtendedConn(stream), destination: destination}), nil
 }
 
 func (c *Client) openStream() (net.Conn, error) {
@@ -122,16 +121,17 @@ func (c *Client) offer() (abstractSession, error) {
 		sessions = append(sessions, element.Value)
 		element = element.Next()
 	}
-	session := common.MinBy(common.Filter(sessions, abstractSession.CanTakeNewRequest), abstractSession.NumStreams)
-	if session == nil {
+	sLen := len(sessions)
+	if sLen == 0 {
 		return c.offerNew()
 	}
+	session := common.MinBy(sessions, abstractSession.NumStreams)
 	numStreams := session.NumStreams()
 	if numStreams == 0 {
 		return session, nil
 	}
 	if c.maxConnections > 0 {
-		if len(sessions) >= c.maxConnections || numStreams < c.minStreams {
+		if sLen >= c.maxConnections || numStreams < c.minStreams {
 			return session, nil
 		}
 	} else {
@@ -147,19 +147,10 @@ func (c *Client) offerNew() (abstractSession, error) {
 	if err != nil {
 		return nil, err
 	}
-	var version byte
-	if c.paddingEnabled {
-		version = Version1
+	if vectorisedWriter, isVectorised := bufio.CreateVectorisedWriter(conn); isVectorised {
+		conn = &vectorisedProtocolConn{protocolConn{Conn: conn, protocol: c.protocol}, vectorisedWriter}
 	} else {
-		version = Version0
-	}
-	conn = newProtocolConn(conn, Request{
-		Version:        version,
-		Protocol:       c.protocol,
-		PaddingEnabled: c.paddingEnabled,
-	})
-	if c.paddingEnabled {
-		conn = newPaddingConn(conn)
+		conn = &protocolConn{Conn: conn, protocol: c.protocol}
 	}
 	session, err := c.protocol.newClient(conn)
 	if err != nil {
@@ -169,15 +160,6 @@ func (c *Client) offerNew() (abstractSession, error) {
 	return session, nil
 }
 
-func (c *Client) Reset() {
-	c.access.Lock()
-	defer c.access.Unlock()
-	for _, session := range c.connections.Array() {
-		session.Close()
-	}
-	c.connections.Init()
-}
-
 func (c *Client) Close() error {
 	c.access.Lock()
 	defer c.access.Unlock()
@@ -224,7 +206,7 @@ func (c *ClientConn) Write(b []byte) (n int, err error) {
 		Network:     N.NetworkTCP,
 		Destination: c.destination,
 	}
-	_buffer := buf.StackNewSize(streamRequestLen(request) + len(b))
+	_buffer := buf.StackNewSize(requestLen(request) + len(b))
 	defer common.KeepAlive(_buffer)
 	buffer := common.Dup(_buffer)
 	defer buffer.Release()
@@ -268,10 +250,6 @@ func (c *ClientConn) WriterReplaceable() bool {
 	return c.requestWrite
 }
 
-func (c *ClientConn) NeedAdditionalReadDeadline() bool {
-	return true
-}
-
 func (c *ClientConn) Upstream() any {
 	return c.Conn
 }
@@ -318,7 +296,7 @@ func (c *ClientPacketConn) writeRequest(payload []byte) (n int, err error) {
 		Network:     N.NetworkUDP,
 		Destination: c.destination,
 	}
-	rLen := streamRequestLen(request)
+	rLen := requestLen(request)
 	if len(payload) > 0 {
 		rLen += 2 + len(payload)
 	}
@@ -400,10 +378,6 @@ func (c *ClientPacketConn) RemoteAddr() net.Addr {
 	return c.destination.UDPAddr()
 }
 
-func (c *ClientPacketConn) NeedAdditionalReadDeadline() bool {
-	return true
-}
-
 func (c *ClientPacketConn) Upstream() any {
 	return c.ExtendedConn
 }
@@ -463,7 +437,7 @@ func (c *ClientPacketAddrConn) writeRequest(payload []byte, destination M.Socksa
 		Destination: c.destination,
 		PacketAddr:  true,
 	}
-	rLen := streamRequestLen(request)
+	rLen := requestLen(request)
 	if len(payload) > 0 {
 		rLen += M.SocksaddrSerializer.AddrPortLen(destination) + 2 + len(payload)
 	}
@@ -545,10 +519,6 @@ func (c *ClientPacketAddrConn) FrontHeadroom() int {
 	return 2 + M.MaxSocksaddrLength
 }
 
-func (c *ClientPacketAddrConn) NeedAdditionalReadDeadline() bool {
-	return true
-}
-
 func (c *ClientPacketAddrConn) Upstream() any {
 	return c.ExtendedConn
 }

common/mux/h2mux.go

@@ -1,235 +0,0 @@
-package mux
-
-import (
-	"context"
-	"crypto/tls"
-	"io"
-	"net"
-	"net/http"
-	"net/url"
-	"os"
-	"time"
-
-	"github.com/sagernet/sing-box/transport/v2rayhttp"
-	"github.com/sagernet/sing/common/atomic"
-	"github.com/sagernet/sing/common/buf"
-	"github.com/sagernet/sing/common/bufio"
-	E "github.com/sagernet/sing/common/exceptions"
-	N "github.com/sagernet/sing/common/network"
-
-	"golang.org/x/net/http2"
-)
-
-const idleTimeout = 30 * time.Second
-
-var _ abstractSession = (*H2MuxServerSession)(nil)
-
-type H2MuxServerSession struct {
-	server  http2.Server
-	active  atomic.Int32
-	conn    net.Conn
-	inbound chan net.Conn
-	done    chan struct{}
-}
-
-func NewH2MuxServer(conn net.Conn) *H2MuxServerSession {
-	session := &H2MuxServerSession{
-		conn:    conn,
-		inbound: make(chan net.Conn),
-		done:    make(chan struct{}),
-		server: http2.Server{
-			IdleTimeout: idleTimeout,
-		},
-	}
-	go func() {
-		session.server.ServeConn(conn, &http2.ServeConnOpts{
-			Handler: session,
-		})
-		_ = session.Close()
-	}()
-	return session
-}
-
-func (s *H2MuxServerSession) ServeHTTP(writer http.ResponseWriter, request *http.Request) {
-	s.active.Add(1)
-	defer s.active.Add(-1)
-	writer.WriteHeader(http.StatusOK)
-	conn := newHTTP2Wrapper(&v2rayhttp.ServerHTTPConn{
-		HTTP2Conn: v2rayhttp.NewHTTPConn(request.Body, writer),
-		Flusher:   writer.(http.Flusher),
-	})
-	s.inbound <- conn
-	select {
-	case <-conn.done:
-	case <-s.done:
-	}
-}
-
-func (s *H2MuxServerSession) Open() (net.Conn, error) {
-	return nil, os.ErrInvalid
-}
-
-func (s *H2MuxServerSession) Accept() (net.Conn, error) {
-	select {
-	case conn := <-s.inbound:
-		return conn, nil
-	case <-s.done:
-		return nil, os.ErrClosed
-	}
-}
-
-func (s *H2MuxServerSession) NumStreams() int {
-	return int(s.active.Load())
-}
-
-func (s *H2MuxServerSession) Close() error {
-	select {
-	case <-s.done:
-	default:
-		close(s.done)
-	}
-	return s.conn.Close()
-}
-
-func (s *H2MuxServerSession) IsClosed() bool {
-	select {
-	case <-s.done:
-		return true
-	default:
-		return false
-	}
-}
-
-func (s *H2MuxServerSession) CanTakeNewRequest() bool {
-	return false
-}
-
-type h2MuxConnWrapper struct {
-	N.ExtendedConn
-	done chan struct{}
-}
-
-func newHTTP2Wrapper(conn net.Conn) *h2MuxConnWrapper {
-	return &h2MuxConnWrapper{
-		ExtendedConn: bufio.NewExtendedConn(conn),
-		done:         make(chan struct{}),
-	}
-}
-
-func (w *h2MuxConnWrapper) Write(p []byte) (n int, err error) {
-	select {
-	case <-w.done:
-		return 0, net.ErrClosed
-	default:
-	}
-	return w.ExtendedConn.Write(p)
-}
-
-func (w *h2MuxConnWrapper) WriteBuffer(buffer *buf.Buffer) error {
-	select {
-	case <-w.done:
-		return net.ErrClosed
-	default:
-	}
-	return w.ExtendedConn.WriteBuffer(buffer)
-}
-
-func (w *h2MuxConnWrapper) Close() error {
-	select {
-	case <-w.done:
-	default:
-		close(w.done)
-	}
-	return w.ExtendedConn.Close()
-}
-
-func (w *h2MuxConnWrapper) Upstream() any {
-	return w.ExtendedConn
-}
-
-var _ abstractSession = (*H2MuxClientSession)(nil)
-
-type H2MuxClientSession struct {
-	transport  *http2.Transport
-	clientConn *http2.ClientConn
-	done       chan struct{}
-}
-
-func NewH2MuxClient(conn net.Conn) (*H2MuxClientSession, error) {
-	session := &H2MuxClientSession{
-		transport: &http2.Transport{
-			DialTLSContext: func(ctx context.Context, network, addr string, cfg *tls.Config) (net.Conn, error) {
-				return conn, nil
-			},
-			ReadIdleTimeout: idleTimeout,
-		},
-		done: make(chan struct{}),
-	}
-	session.transport.ConnPool = session
-	clientConn, err := session.transport.NewClientConn(conn)
-	if err != nil {
-		return nil, err
-	}
-	session.clientConn = clientConn
-	return session, nil
-}
-
-func (s *H2MuxClientSession) GetClientConn(req *http.Request, addr string) (*http2.ClientConn, error) {
-	return s.clientConn, nil
-}
-
-func (s *H2MuxClientSession) MarkDead(conn *http2.ClientConn) {
-	s.Close()
-}
-
-func (s *H2MuxClientSession) Open() (net.Conn, error) {
-	pipeInReader, pipeInWriter := io.Pipe()
-	request := &http.Request{
-		Method: http.MethodConnect,
-		Body:   pipeInReader,
-		URL:    &url.URL{Scheme: "https", Host: "localhost"},
-	}
-	conn := v2rayhttp.NewLateHTTPConn(pipeInWriter)
-	go func() {
-		response, err := s.transport.RoundTrip(request)
-		if err != nil {
-			conn.Setup(nil, err)
-		} else if response.StatusCode != 200 {
-			response.Body.Close()
-			conn.Setup(nil, E.New("unexpected status: ", response.StatusCode, " ", response.Status))
-		} else {
-			conn.Setup(response.Body, nil)
-		}
-	}()
-	return conn, nil
-}
-
-func (s *H2MuxClientSession) Accept() (net.Conn, error) {
-	return nil, os.ErrInvalid
-}
-
-func (s *H2MuxClientSession) NumStreams() int {
-	return s.clientConn.State().StreamsActive
-}
-
-func (s *H2MuxClientSession) Close() error {
-	select {
-	case <-s.done:
-	default:
-		close(s.done)
-	}
-	return s.clientConn.Close()
-}
-
-func (s *H2MuxClientSession) IsClosed() bool {
-	select {
-	case <-s.done:
-		return true
-	default:
-	}
-	return s.clientConn.State().Closed
-}
-
-func (s *H2MuxClientSession) CanTakeNewRequest() bool {
-	return s.clientConn.CanTakeNewRequest()
-}

common/mux/padding.go

@@ -1,240 +0,0 @@
-package mux
-
-import (
-	"encoding/binary"
-	"io"
-	"math/rand"
-	"net"
-
-	"github.com/sagernet/sing/common"
-	"github.com/sagernet/sing/common/buf"
-	"github.com/sagernet/sing/common/bufio"
-	N "github.com/sagernet/sing/common/network"
-	"github.com/sagernet/sing/common/rw"
-)
-
-const kFirstPaddings = 16
-
-type paddingConn struct {
-	N.ExtendedConn
-	writer           N.VectorisedWriter
-	readPadding      int
-	writePadding     int
-	readRemaining    int
-	paddingRemaining int
-}
-
-func newPaddingConn(conn net.Conn) net.Conn {
-	writer, isVectorised := bufio.CreateVectorisedWriter(conn)
-	if isVectorised {
-		return &vectorisedPaddingConn{
-			paddingConn{
-				ExtendedConn: bufio.NewExtendedConn(conn),
-				writer:       bufio.NewVectorisedWriter(conn),
-			},
-			writer,
-		}
-	} else {
-		return &paddingConn{
-			ExtendedConn: bufio.NewExtendedConn(conn),
-			writer:       bufio.NewVectorisedWriter(conn),
-		}
-	}
-}
-
-func (c *paddingConn) Read(p []byte) (n int, err error) {
-	if c.readRemaining > 0 {
-		if len(p) > c.readRemaining {
-			p = p[:c.readRemaining]
-		}
-		n, err = c.ExtendedConn.Read(p)
-		if err != nil {
-			return
-		}
-		c.readRemaining -= n
-		return
-	}
-	if c.paddingRemaining > 0 {
-		err = rw.SkipN(c.ExtendedConn, c.paddingRemaining)
-		if err != nil {
-			return
-		}
-		c.paddingRemaining = 0
-	}
-	if c.readPadding < kFirstPaddings {
-		var paddingHdr []byte
-		if len(p) >= 4 {
-			paddingHdr = p[:4]
-		} else {
-			_paddingHdr := make([]byte, 4)
-			defer common.KeepAlive(_paddingHdr)
-			paddingHdr = common.Dup(_paddingHdr)
-		}
-		_, err = io.ReadFull(c.ExtendedConn, paddingHdr)
-		if err != nil {
-			return
-		}
-		originalDataSize := int(binary.BigEndian.Uint16(paddingHdr[:2]))
-		paddingLen := int(binary.BigEndian.Uint16(paddingHdr[2:]))
-		if len(p) > originalDataSize {
-			p = p[:originalDataSize]
-		}
-		n, err = c.ExtendedConn.Read(p)
-		if err != nil {
-			return
-		}
-		c.readPadding++
-		c.readRemaining = originalDataSize - n
-		c.paddingRemaining = paddingLen
-		return
-	}
-	return c.ExtendedConn.Read(p)
-}
-
-func (c *paddingConn) Write(p []byte) (n int, err error) {
-	for pLen := len(p); pLen > 0; {
-		var data []byte
-		if pLen > 65535 {
-			data = p[:65535]
-			p = p[65535:]
-			pLen -= 65535
-		} else {
-			data = p
-			pLen = 0
-		}
-		var writeN int
-		writeN, err = c.write(data)
-		n += writeN
-		if err != nil {
-			break
-		}
-	}
-	return n, err
-}
-
-func (c *paddingConn) write(p []byte) (n int, err error) {
-	if c.writePadding < kFirstPaddings {
-		paddingLen := 256 + rand.Intn(512)
-		_buffer := buf.StackNewSize(4 + len(p) + paddingLen)
-		defer common.KeepAlive(_buffer)
-		buffer := common.Dup(_buffer)
-		defer buffer.Release()
-		header := buffer.Extend(4)
-		binary.BigEndian.PutUint16(header[:2], uint16(len(p)))
-		binary.BigEndian.PutUint16(header[2:], uint16(paddingLen))
-		common.Must1(buffer.Write(p))
-		buffer.Extend(paddingLen)
-		_, err = c.ExtendedConn.Write(buffer.Bytes())
-		if err == nil {
-			n = len(p)
-		}
-		c.writePadding++
-		return
-	}
-	return c.ExtendedConn.Write(p)
-}
-
-func (c *paddingConn) ReadBuffer(buffer *buf.Buffer) error {
-	p := buffer.FreeBytes()
-	if c.readRemaining > 0 {
-		if len(p) > c.readRemaining {
-			p = p[:c.readRemaining]
-		}
-		n, err := c.ExtendedConn.Read(p)
-		if err != nil {
-			return err
-		}
-		c.readRemaining -= n
-		buffer.Truncate(n)
-		return nil
-	}
-	if c.paddingRemaining > 0 {
-		err := rw.SkipN(c.ExtendedConn, c.paddingRemaining)
-		if err != nil {
-			return err
-		}
-		c.paddingRemaining = 0
-	}
-	if c.readPadding < kFirstPaddings {
-		var paddingHdr []byte
-		if len(p) >= 4 {
-			paddingHdr = p[:4]
-		} else {
-			_paddingHdr := make([]byte, 4)
-			defer common.KeepAlive(_paddingHdr)
-			paddingHdr = common.Dup(_paddingHdr)
-		}
-		_, err := io.ReadFull(c.ExtendedConn, paddingHdr)
-		if err != nil {
-			return err
-		}
-		originalDataSize := int(binary.BigEndian.Uint16(paddingHdr[:2]))
-		paddingLen := int(binary.BigEndian.Uint16(paddingHdr[2:]))
-
-		if len(p) > originalDataSize {
-			p = p[:originalDataSize]
-		}
-		n, err := c.ExtendedConn.Read(p)
-		if err != nil {
-			return err
-		}
-		c.readPadding++
-		c.readRemaining = originalDataSize - n
-		c.paddingRemaining = paddingLen
-		buffer.Truncate(n)
-		return nil
-	}
-	return c.ExtendedConn.ReadBuffer(buffer)
-}
-
-func (c *paddingConn) WriteBuffer(buffer *buf.Buffer) error {
-	if c.writePadding < kFirstPaddings {
-		bufferLen := buffer.Len()
-		if bufferLen > 65535 {
-			return common.Error(c.Write(buffer.Bytes()))
-		}
-		paddingLen := 256 + rand.Intn(512)
-		header := buffer.ExtendHeader(4)
-		binary.BigEndian.PutUint16(header[:2], uint16(bufferLen))
-		binary.BigEndian.PutUint16(header[2:], uint16(paddingLen))
-		buffer.Extend(paddingLen)
-		c.writePadding++
-	}
-	return c.ExtendedConn.WriteBuffer(buffer)
-}
-
-func (c *paddingConn) FrontHeadroom() int {
-	return 4 + 256 + 1024
-}
-
-type vectorisedPaddingConn struct {
-	paddingConn
-	writer N.VectorisedWriter
-}
-
-func (c *vectorisedPaddingConn) WriteVectorised(buffers []*buf.Buffer) error {
-	if c.writePadding < kFirstPaddings {
-		bufferLen := buf.LenMulti(buffers)
-		if bufferLen > 65535 {
-			defer buf.ReleaseMulti(buffers)
-			for _, buffer := range buffers {
-				_, err := c.Write(buffer.Bytes())
-				if err != nil {
-					return err
-				}
-			}
-			return nil
-		}
-		paddingLen := 256 + rand.Intn(512)
-		header := buf.NewSize(4)
-		common.Must(
-			binary.Write(header, binary.BigEndian, uint16(bufferLen)),
-			binary.Write(header, binary.BigEndian, uint16(paddingLen)),
-		)
-		c.writePadding++
-		padding := buf.NewSize(paddingLen)
-		padding.Extend(paddingLen)
-		buffers = append(append([]*buf.Buffer{header}, buffers...), padding)
-	}
-	return c.writer.WriteVectorised(buffers)
-}

common/mux/protocol.go

@@ -3,7 +3,6 @@ package mux
 import (
 	"encoding/binary"
 	"io"
-	"math/rand"
 	"net"
 
 	C "github.com/sagernet/sing-box/constant"
@@ -26,7 +25,6 @@ var Destination = M.Socksaddr{
 const (
 	ProtocolSMux Protocol = iota
 	ProtocolYAMux
-	ProtocolH2Mux
 )
 
 type Protocol byte
@@ -37,10 +35,8 @@ func ParseProtocol(name string) (Protocol, error) {
 		return ProtocolSMux, nil
 	case "yamux":
 		return ProtocolYAMux, nil
-	case "h2mux":
-		return ProtocolH2Mux, nil
 	default:
-		return ProtocolSMux, E.New("unknown multiplex protocol: ", name)
+		return ProtocolYAMux, E.New("unknown multiplex protocol: ", name)
 	}
 }
 
@@ -53,13 +49,7 @@ func (p Protocol) newServer(conn net.Conn) (abstractSession, error) {
 		}
 		return &smuxSession{session}, nil
 	case ProtocolYAMux:
-		session, err := yamux.Server(conn, yaMuxConfig())
-		if err != nil {
-			return nil, err
-		}
-		return &yamuxSession{session}, nil
-	case ProtocolH2Mux:
-		return NewH2MuxServer(conn), nil
+		return yamux.Server(conn, yaMuxConfig())
 	default:
 		panic("unknown protocol")
 	}
@@ -74,13 +64,7 @@ func (p Protocol) newClient(conn net.Conn) (abstractSession, error) {
 		}
 		return &smuxSession{session}, nil
 	case ProtocolYAMux:
-		session, err := yamux.Client(conn, yaMuxConfig())
-		if err != nil {
-			return nil, err
-		}
-		return &yamuxSession{session}, nil
-	case ProtocolH2Mux:
-		return NewH2MuxClient(conn)
+		return yamux.Client(conn, yaMuxConfig())
 	default:
 		panic("unknown protocol")
 	}
@@ -106,22 +90,17 @@ func (p Protocol) String() string {
 		return "smux"
 	case ProtocolYAMux:
 		return "yamux"
-	case ProtocolH2Mux:
-		return "h2mux"
 	default:
 		return "unknown"
 	}
 }
 
 const (
-	Version0 = iota
-	Version1
+	version0 = 0
 )
 
 type Request struct {
-	Version        byte
-	Protocol       Protocol
-	PaddingEnabled bool
+	Protocol Protocol
 }
 
 func ReadRequest(reader io.Reader) (*Request, error) {
@@ -129,60 +108,22 @@ func ReadRequest(reader io.Reader) (*Request, error) {
 	if err != nil {
 		return nil, err
 	}
-	if version < Version0 || version > Version1 {
+	if version != version0 {
 		return nil, E.New("unsupported version: ", version)
 	}
 	protocol, err := rw.ReadByte(reader)
 	if err != nil {
 		return nil, err
 	}
-	var paddingEnabled bool
-	if version == Version1 {
-		err = binary.Read(reader, binary.BigEndian, &paddingEnabled)
-		if err != nil {
-			return nil, err
-		}
-		if paddingEnabled {
-			var paddingLen uint16
-			err = binary.Read(reader, binary.BigEndian, &paddingLen)
-			if err != nil {
-				return nil, err
-			}
-			err = rw.SkipN(reader, int(paddingLen))
-			if err != nil {
-				return nil, err
-			}
-		}
+	if protocol > byte(ProtocolYAMux) {
+		return nil, E.New("unsupported protocol: ", protocol)
 	}
-	return &Request{Version: version, Protocol: Protocol(protocol), PaddingEnabled: paddingEnabled}, nil
+	return &Request{Protocol: Protocol(protocol)}, nil
 }
 
-func EncodeRequest(request Request, payload []byte) *buf.Buffer {
-	var requestLen int
-	requestLen += 2
-	var paddingLen uint16
-	if request.Version == Version1 {
-		requestLen += 1
-		if request.PaddingEnabled {
-			requestLen += 2
-			paddingLen = uint16(256 + rand.Intn(512))
-			requestLen += int(paddingLen)
-		}
-	}
-	buffer := buf.NewSize(requestLen + len(payload))
-	common.Must(
-		buffer.WriteByte(request.Version),
-		buffer.WriteByte(byte(request.Protocol)),
-	)
-	if request.Version == Version1 {
-		common.Must(binary.Write(buffer, binary.BigEndian, request.PaddingEnabled))
-		if request.PaddingEnabled {
-			common.Must(binary.Write(buffer, binary.BigEndian, paddingLen))
-			buffer.Extend(int(paddingLen))
-		}
-	}
-	common.Must1(buffer.Write(payload))
-	return buffer
+func EncodeRequest(buffer *buf.Buffer, request Request) {
+	buffer.WriteByte(version0)
+	buffer.WriteByte(byte(request.Protocol))
 }
 
 const (
@@ -219,7 +160,7 @@ func ReadStreamRequest(reader io.Reader) (*StreamRequest, error) {
 	return &StreamRequest{network, destination, udpAddr}, nil
 }
 
-func streamRequestLen(request StreamRequest) int {
+func requestLen(request StreamRequest) int {
 	var rLen int
 	rLen += 1 // version
 	rLen += 2 // flags

common/mux/service.go

@@ -10,6 +10,7 @@ import (
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/buf"
 	"github.com/sagernet/sing/common/bufio"
+	"github.com/sagernet/sing/common/bufio/deadline"
 	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
@@ -22,9 +23,6 @@ func NewConnection(ctx context.Context, router adapter.Router, errorHandler E.Ha
 	if err != nil {
 		return err
 	}
-	if request.PaddingEnabled {
-		conn = newPaddingConn(conn)
-	}
 	session, err := request.Protocol.newServer(conn)
 	if err != nil {
 		return err
@@ -70,7 +68,7 @@ func newConnection(ctx context.Context, router adapter.Router, errorHandler E.Ha
 			logger.InfoContext(ctx, "inbound multiplex packet connection")
 			packetConn = &ServerPacketAddrConn{ExtendedConn: bufio.NewExtendedConn(stream)}
 		}
-		hErr := router.RoutePacketConnection(ctx, packetConn, metadata)
+		hErr := router.RoutePacketConnection(ctx, deadline.NewPacketConn(bufio.NewNetPacketConn(packetConn)), metadata)
 		stream.Close()
 		if hErr != nil {
 			errorHandler.NewError(ctx, hErr)
@@ -134,10 +132,6 @@ func (c *ServerConn) FrontHeadroom() int {
 	return 0
 }
 
-func (c *ServerConn) NeedAdditionalReadDeadline() bool {
-	return true
-}
-
 func (c *ServerConn) Upstream() any {
 	return c.ExtendedConn
 }
@@ -190,10 +184,6 @@ func (c *ServerPacketConn) WritePacket(buffer *buf.Buffer, destination M.Socksad
 	return c.ExtendedConn.WriteBuffer(buffer)
 }
 
-func (c *ServerPacketConn) NeedAdditionalReadDeadline() bool {
-	return true
-}
-
 func (c *ServerPacketConn) Upstream() any {
 	return c.ExtendedConn
 }
@@ -256,10 +246,6 @@ func (c *ServerPacketAddrConn) WritePacket(buffer *buf.Buffer, destination M.Soc
 	return c.ExtendedConn.WriteBuffer(buffer)
 }
 
-func (c *ServerPacketAddrConn) NeedAdditionalReadDeadline() bool {
-	return true
-}
-
 func (c *ServerPacketAddrConn) Upstream() any {
 	return c.ExtendedConn
 }

common/mux/session.go

@@ -4,12 +4,11 @@ import (
 	"io"
 	"net"
 
+	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/buf"
 	"github.com/sagernet/sing/common/bufio"
 	N "github.com/sagernet/sing/common/network"
 	"github.com/sagernet/smux"
-
-	"github.com/hashicorp/yamux"
 )
 
 type abstractSession interface {
@@ -18,7 +17,6 @@ type abstractSession interface {
 	NumStreams() int
 	Close() error
 	IsClosed() bool
-	CanTakeNewRequest() bool
 }
 
 var _ abstractSession = (*smuxSession)(nil)
@@ -35,49 +33,25 @@ func (s *smuxSession) Accept() (net.Conn, error) {
 	return s.AcceptStream()
 }
 
-func (s *smuxSession) CanTakeNewRequest() bool {
-	return true
-}
-
-type yamuxSession struct {
-	*yamux.Session
-}
-
-func (y *yamuxSession) CanTakeNewRequest() bool {
-	return true
-}
-
 type protocolConn struct {
 	net.Conn
-	request         Request
+	protocol        Protocol
 	protocolWritten bool
 }
 
-func newProtocolConn(conn net.Conn, request Request) net.Conn {
-	writer, isVectorised := bufio.CreateVectorisedWriter(conn)
-	if isVectorised {
-		return &vectorisedProtocolConn{
-			protocolConn{
-				Conn:    conn,
-				request: request,
-			},
-			writer,
-		}
-	} else {
-		return &protocolConn{
-			Conn:    conn,
-			request: request,
-		}
-	}
-}
-
 func (c *protocolConn) Write(p []byte) (n int, err error) {
 	if c.protocolWritten {
 		return c.Conn.Write(p)
 	}
-	buffer := EncodeRequest(c.request, p)
+	_buffer := buf.StackNewSize(2 + len(p))
+	defer common.KeepAlive(_buffer)
+	buffer := common.Dup(_buffer)
+	defer buffer.Release()
+	EncodeRequest(buffer, Request{
+		Protocol: c.protocol,
+	})
+	common.Must(common.Error(buffer.Write(p)))
 	n, err = c.Conn.Write(buffer.Bytes())
-	buffer.Release()
 	if err == nil {
 		n--
 	}
@@ -98,14 +72,20 @@ func (c *protocolConn) Upstream() any {
 
 type vectorisedProtocolConn struct {
 	protocolConn
-	writer N.VectorisedWriter
+	N.VectorisedWriter
 }
 
 func (c *vectorisedProtocolConn) WriteVectorised(buffers []*buf.Buffer) error {
 	if c.protocolWritten {
-		return c.writer.WriteVectorised(buffers)
+		return c.VectorisedWriter.WriteVectorised(buffers)
 	}
 	c.protocolWritten = true
-	buffer := EncodeRequest(c.request, nil)
-	return c.writer.WriteVectorised(append([]*buf.Buffer{buffer}, buffers...))
+	_buffer := buf.StackNewSize(2)
+	defer common.KeepAlive(_buffer)
+	buffer := common.Dup(_buffer)
+	defer buffer.Release()
+	EncodeRequest(buffer, Request{
+		Protocol: c.protocol,
+	})
+	return c.VectorisedWriter.WriteVectorised(append([]*buf.Buffer{buffer}, buffers...))
 }

common/sniff/http.go

@@ -7,7 +7,6 @@ import (
 
 	"github.com/sagernet/sing-box/adapter"
 	C "github.com/sagernet/sing-box/constant"
-	M "github.com/sagernet/sing/common/metadata"
 	"github.com/sagernet/sing/protocol/http"
 )
 
@@ -16,5 +15,5 @@ func HTTPHost(ctx context.Context, reader io.Reader) (*adapter.InboundContext, e
 	if err != nil {
 		return nil, err
 	}
-	return &adapter.InboundContext{Protocol: C.ProtocolHTTP, Domain: M.ParseSocksaddr(request.Host).AddrString()}, nil
+	return &adapter.InboundContext{Protocol: C.ProtocolHTTP, Domain: request.Host}, nil
 }

common/sniff/http_test.go

@@ -1,27 +0,0 @@
-package sniff_test
-
-import (
-	"context"
-	"strings"
-	"testing"
-
-	"github.com/sagernet/sing-box/common/sniff"
-
-	"github.com/stretchr/testify/require"
-)
-
-func TestSniffHTTP1(t *testing.T) {
-	t.Parallel()
-	pkt := "GET / HTTP/1.1\r\nHost: www.google.com\r\nAccept: */*\r\n\r\n"
-	metadata, err := sniff.HTTPHost(context.Background(), strings.NewReader(pkt))
-	require.NoError(t, err)
-	require.Equal(t, metadata.Domain, "www.google.com")
-}
-
-func TestSniffHTTP1WithPort(t *testing.T) {
-	t.Parallel()
-	pkt := "GET / HTTP/1.1\r\nHost: www.gov.cn:8080\r\nAccept: */*\r\n\r\n"
-	metadata, err := sniff.HTTPHost(context.Background(), strings.NewReader(pkt))
-	require.NoError(t, err)
-	require.Equal(t, metadata.Domain, "www.gov.cn")
-}

common/tls/reality_client.go

@@ -125,7 +125,7 @@ func (e *RealityClientConfig) ClientHandshake(ctx context.Context, conn net.Conn
 
 	hello.SessionId[0] = 1
 	hello.SessionId[1] = 8
-	hello.SessionId[2] = 1
+	hello.SessionId[2] = 0
 	binary.BigEndian.PutUint32(hello.SessionId[4:], uint32(time.Now().Unix()))
 	copy(hello.SessionId[8:], e.shortID[:])
 

common/warning/warning.go

@@ -0,0 +1,31 @@
+package warning
+
+import (
+	"sync"
+
+	"github.com/sagernet/sing-box/log"
+)
+
+type Warning struct {
+	logger    log.Logger
+	check     CheckFunc
+	message   string
+	checkOnce sync.Once
+}
+
+type CheckFunc = func() bool
+
+func New(checkFunc CheckFunc, message string) Warning {
+	return Warning{
+		check:   checkFunc,
+		message: message,
+	}
+}
+
+func (w *Warning) Check() {
+	w.checkOnce.Do(func() {
+		if w.check() {
+			log.Warn(w.message)
+		}
+	})
+}

constant/path.go

@@ -3,13 +3,40 @@ package constant
 import (
 	"os"
 	"path/filepath"
+	"strings"
 
 	"github.com/sagernet/sing/common/rw"
 )
 
 const dirName = "sing-box"
 
-var resourcePaths []string
+var (
+	basePath      string
+	tempPath      string
+	resourcePaths []string
+)
+
+func BasePath(name string) string {
+	if basePath == "" || strings.HasPrefix(name, "/") {
+		return name
+	}
+	return filepath.Join(basePath, name)
+}
+
+func CreateTemp(pattern string) (*os.File, error) {
+	if tempPath == "" {
+		tempPath = os.TempDir()
+	}
+	return os.CreateTemp(tempPath, pattern)
+}
+
+func SetBasePath(path string) {
+	basePath = path
+}
+
+func SetTempPath(path string) {
+	tempPath = path
+}
 
 func FindPath(name string) (string, bool) {
 	name = os.ExpandEnv(name)

debug.go

@@ -10,7 +10,6 @@ import (
 )
 
 func applyDebugOptions(options option.DebugOptions) {
-	applyDebugListenOption(options)
 	if options.GCPercent != nil {
 		debug.SetGCPercent(*options.GCPercent)
 	}

debug_go118.go

@@ -10,7 +10,6 @@ import (
 )
 
 func applyDebugOptions(options option.DebugOptions) {
-	applyDebugListenOption(options)
 	if options.GCPercent != nil {
 		debug.SetGCPercent(*options.GCPercent)
 	}

debug_http.go

@@ -1,67 +0,0 @@
-package box
-
-import (
-	"net/http"
-	"net/http/pprof"
-	"runtime"
-	"runtime/debug"
-
-	"github.com/sagernet/sing-box/common/badjson"
-	"github.com/sagernet/sing-box/common/json"
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing-box/option"
-	E "github.com/sagernet/sing/common/exceptions"
-
-	"github.com/dustin/go-humanize"
-	"github.com/go-chi/chi/v5"
-)
-
-var debugHTTPServer *http.Server
-
-func applyDebugListenOption(options option.DebugOptions) {
-	if debugHTTPServer != nil {
-		debugHTTPServer.Close()
-		debugHTTPServer = nil
-	}
-	if options.Listen == "" {
-		return
-	}
-	r := chi.NewMux()
-	r.Route("/debug", func(r chi.Router) {
-		r.Get("/gc", func(writer http.ResponseWriter, request *http.Request) {
-			writer.WriteHeader(http.StatusNoContent)
-			go debug.FreeOSMemory()
-		})
-		r.Get("/memory", func(writer http.ResponseWriter, request *http.Request) {
-			var memStats runtime.MemStats
-			runtime.ReadMemStats(&memStats)
-
-			var memObject badjson.JSONObject
-			memObject.Put("heap", humanize.IBytes(memStats.HeapInuse))
-			memObject.Put("stack", humanize.IBytes(memStats.StackInuse))
-			memObject.Put("idle", humanize.IBytes(memStats.HeapIdle-memStats.HeapReleased))
-			memObject.Put("goroutines", runtime.NumGoroutine())
-			memObject.Put("rss", rusageMaxRSS())
-
-			encoder := json.NewEncoder(writer)
-			encoder.SetIndent("", "  ")
-			encoder.Encode(memObject)
-		})
-		r.HandleFunc("/pprof", pprof.Index)
-		r.HandleFunc("/pprof/*", pprof.Index)
-		r.HandleFunc("/pprof/cmdline", pprof.Cmdline)
-		r.HandleFunc("/pprof/profile", pprof.Profile)
-		r.HandleFunc("/pprof/symbol", pprof.Symbol)
-		r.HandleFunc("/pprof/trace", pprof.Trace)
-	})
-	debugHTTPServer = &http.Server{
-		Addr:    options.Listen,
-		Handler: r,
-	}
-	go func() {
-		err := debugHTTPServer.ListenAndServe()
-		if err != nil && !E.IsClosed(err) {
-			log.Error(E.Cause(err, "serve debug HTTP server"))
-		}
-	}()
-}

docs/changelog.md

@@ -1,43 +1,3 @@
-#### 1.3-beta9
-
-* Improve multiplex **1**
-* Fixes and improvements
-
-*1*:
-
-Added new `h2mux` multiplex protocol and `padding` multiplex option, see [Multiplex](/configuration/shared/multiplex).
-
-#### 1.2.6
-
-* Fix bugs and update dependencies
-
-#### 1.3-beta8
-
-* Fix `system` tun stack for ios
-* Fix network monitor for android/ios
-* Update VLESS and XUDP protocol **1**
-* Fixes and improvements
-
-*1:
-
-This is an incompatible update for XUDP in VLESS if vision flow is enabled.
-
-#### 1.3-beta7
-
-* Add `path` and `headers` options for HTTP outbound
-* Add multi-user support for Shadowsocks legacy AEAD inbound
-* Fixes and improvements
-
-#### 1.2.4
-
-* Fixes and improvements
-
-#### 1.3-beta6
-
-* Fix WireGuard reconnect
-* Perform URLTest recheck after network changes
-* Fix bugs and update dependencies
-
 #### 1.3-beta5
 
 * Add Clash.Meta API compatibility for Clash API

docs/configuration/shared/multiplex.md

@@ -10,8 +10,7 @@
   "protocol": "smux",
   "max_connections": 4,
   "min_streams": 4,
-  "max_streams": 0,
-  "padding": false
+  "max_streams": 0
 }
 ```
 
@@ -29,7 +28,6 @@ Multiplex protocol.
 |----------|------------------------------------|
 | smux     | https://github.com/xtaci/smux      |
 | yamux    | https://github.com/hashicorp/yamux |
-| h2mux    | https://golang.org/x/net/http2     |
 
 SMux is used by default.
 
@@ -50,12 +48,3 @@ Conflict with `max_streams`.
 Maximum multiplexed streams in a connection before opening a new connection.
 
 Conflict with `max_connections` and `min_streams`.
-
-#### padding
-
-!!! info
-
-    Requires sing-box server version 1.3-beta9 or later.
-
-Enable padding.
-

docs/configuration/shared/multiplex.zh.md

@@ -28,7 +28,6 @@
 |-------|------------------------------------|
 | smux  | https://github.com/xtaci/smux      |
 | yamux | https://github.com/hashicorp/yamux |
-| h2mux | https://golang.org/x/net/http2     |
 
 默认使用 SMux。
 
@@ -48,13 +47,4 @@
 
 在打开新连接之前，连接中的最大多路复用流数量。
 
-与 `max_connections` 和 `min_streams` 冲突。
-
-#### padding
-
-!!! info
-
-    需要 sing-box 服务器版本 1.3-beta9 或更高。
-
-启用填充。
-
+与 `max_connections` 和 `min_streams` 冲突。

docs/installation/clients/sfa.md

@@ -12,6 +12,5 @@ Experimental Android client for sing-box.
 
 #### Note
 
-* User Agent in remote profile request is `SFA/$version ($version_code; sing-box $sing_box_version)`
-* The working directory is located at `/sdcard/Android/data/io.nekohasekai.sfa/files` (External files directory)
-* Crash logs is located in `$working_directory/stderr.log`
+* Working directory is at `/sdcard/Android/data/io.nekohasekai.sfa/files` (External files directory)
+* User Agent is `SFA/$version ($version_code; sing-box $sing_box_version)` in the remote profile request

docs/installation/clients/sfa.zh.md

@@ -12,6 +12,5 @@
 
 #### 注意事项
 
-* 远程配置文件请求中的 User Agent 为 `SFA/$version ($version_code; sing-box $sing_box_version)`
 * 工作目录位于 `/sdcard/Android/data/io.nekohasekai.sfa/files` (外部文件目录)
-* 崩溃日志位于 `$working_directory/stderr.log`
+* 远程配置文件请求中的 User Agent 为 `SFA/$version ($version_code; sing-box $sing_box_version)`

docs/installation/clients/sfi.md

@@ -13,8 +13,8 @@ Experimental iOS client for sing-box.
 
 #### Note
 
-* User Agent in remote profile request is `SFA/$version ($version_code; sing-box $sing_box_version)`
-* Crash logs is located in `Settings` -> `View Service Log`
+* `system` tun stack not working on iOS
+* User Agent is `SFI/$version ($version_code; sing-box $sing_box_version)` in the remote profile request
 
 #### Privacy policy
 

docs/installation/clients/sfi.zh.md

@@ -13,8 +13,8 @@
 
 #### 注意事项
 
+* `system` tun stack 在 iOS 不工作
 * 远程配置文件请求中的 User Agent 为 `SFI/$version ($version_code; sing-box $sing_box_version)`
-* 崩溃日志位于 `设置` -> `查看服务日志`
 
 #### 隐私政策
 

experimental/clashapi.go

@@ -1,7 +1,6 @@
 package experimental
 
 import (
-	"context"
 	"os"
 
 	"github.com/sagernet/sing-box/adapter"
@@ -9,7 +8,7 @@ import (
 	"github.com/sagernet/sing-box/option"
 )
 
-type ClashServerConstructor = func(ctx context.Context, router adapter.Router, logFactory log.ObservableFactory, options option.ClashAPIOptions) (adapter.ClashServer, error)
+type ClashServerConstructor = func(router adapter.Router, logFactory log.ObservableFactory, options option.ClashAPIOptions) (adapter.ClashServer, error)
 
 var clashServerConstructor ClashServerConstructor
 
@@ -17,9 +16,9 @@ func RegisterClashServerConstructor(constructor ClashServerConstructor) {
 	clashServerConstructor = constructor
 }
 
-func NewClashServer(ctx context.Context, router adapter.Router, logFactory log.ObservableFactory, options option.ClashAPIOptions) (adapter.ClashServer, error) {
+func NewClashServer(router adapter.Router, logFactory log.ObservableFactory, options option.ClashAPIOptions) (adapter.ClashServer, error) {
 	if clashServerConstructor == nil {
 		return nil, os.ErrInvalid
 	}
-	return clashServerConstructor(ctx, router, logFactory, options)
+	return clashServerConstructor(router, logFactory, options)
 }

experimental/clashapi/server.go

@@ -23,7 +23,6 @@ import (
 	E "github.com/sagernet/sing/common/exceptions"
 	F "github.com/sagernet/sing/common/format"
 	N "github.com/sagernet/sing/common/network"
-	"github.com/sagernet/sing/service/filemanager"
 	"github.com/sagernet/websocket"
 
 	"github.com/go-chi/chi/v5"
@@ -38,7 +37,6 @@ func init() {
 var _ adapter.ClashServer = (*Server)(nil)
 
 type Server struct {
-	ctx            context.Context
 	router         adapter.Router
 	logger         log.Logger
 	httpServer     *http.Server
@@ -55,11 +53,10 @@ type Server struct {
 	externalUIDownloadDetour string
 }
 
-func NewServer(ctx context.Context, router adapter.Router, logFactory log.ObservableFactory, options option.ClashAPIOptions) (adapter.ClashServer, error) {
+func NewServer(router adapter.Router, logFactory log.ObservableFactory, options option.ClashAPIOptions) (adapter.ClashServer, error) {
 	trafficManager := trafficontrol.NewManager()
 	chiRouter := chi.NewRouter()
 	server := &Server{
-		ctx:    ctx,
 		router: router,
 		logger: logFactory.NewLogger("clash-api"),
 		httpServer: &http.Server{
@@ -85,7 +82,7 @@ func NewServer(ctx context.Context, router adapter.Router, logFactory log.Observ
 		if foundPath, loaded := C.FindPath(cachePath); loaded {
 			cachePath = foundPath
 		} else {
-			cachePath = filemanager.BasePath(ctx, cachePath)
+			cachePath = C.BasePath(cachePath)
 		}
 		server.cacheFilePath = cachePath
 	}
@@ -116,7 +113,7 @@ func NewServer(ctx context.Context, router adapter.Router, logFactory log.Observ
 		server.setupMetaAPI(r)
 	})
 	if options.ExternalUI != "" {
-		server.externalUI = filemanager.BasePath(ctx, os.ExpandEnv(options.ExternalUI))
+		server.externalUI = C.BasePath(os.ExpandEnv(options.ExternalUI))
 		chiRouter.Group(func(r chi.Router) {
 			fs := http.StripPrefix("/ui", http.FileServer(http.Dir(server.externalUI)))
 			r.Get("/ui", http.RedirectHandler("/ui/", http.StatusTemporaryRedirect).ServeHTTP)

experimental/clashapi/server_resources.go

@@ -12,11 +12,11 @@ import (
 	"time"
 
 	"github.com/sagernet/sing-box/adapter"
+	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing/common"
 	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
-	"github.com/sagernet/sing/service/filemanager"
 )
 
 func (s *Server) checkAndDownloadExternalUI() {
@@ -79,7 +79,7 @@ func (s *Server) downloadExternalUI() error {
 }
 
 func (s *Server) downloadZIP(name string, body io.Reader, output string) error {
-	tempFile, err := filemanager.CreateTemp(s.ctx, name)
+	tempFile, err := C.CreateTemp(name)
 	if err != nil {
 		return err
 	}
@@ -112,7 +112,7 @@ func (s *Server) downloadZIP(name string, body io.Reader, output string) error {
 			return err
 		}
 		savePath := filepath.Join(saveDirectory, pathElements[len(pathElements)-1])
-		err = downloadZIPEntry(s.ctx, file, savePath)
+		err = downloadZIPEntry(file, savePath)
 		if err != nil {
 			return err
 		}
@@ -120,8 +120,8 @@ func (s *Server) downloadZIP(name string, body io.Reader, output string) error {
 	return nil
 }
 
-func downloadZIPEntry(ctx context.Context, zipFile *zip.File, savePath string) error {
-	saveFile, err := filemanager.Create(ctx, savePath)
+func downloadZIPEntry(zipFile *zip.File, savePath string) error {
+	saveFile, err := os.Create(savePath)
 	if err != nil {
 		return err
 	}

experimental/libbox/iterator.go

@@ -29,19 +29,3 @@ func (i *iterator[T]) Next() T {
 func (i *iterator[T]) HasNext() bool {
 	return len(i.values) > 0
 }
-
-type abstractIterator[T any] interface {
-	Next() T
-	HasNext() bool
-}
-
-func iteratorToArray[T any](iterator abstractIterator[T]) []T {
-	if iterator == nil {
-		return nil
-	}
-	var values []T
-	for iterator.HasNext() {
-		values = append(values, iterator.Next())
-	}
-	return values
-}

experimental/libbox/log.go

@@ -27,27 +27,3 @@ func RedirectStderr(path string) error {
 	stderrFile = outputFile
 	return nil
 }
-
-func RedirectStderrAsUser(path string, uid, gid int) error {
-	if stats, err := os.Stat(path); err == nil && stats.Size() > 0 {
-		_ = os.Rename(path, path+".old")
-	}
-	outputFile, err := os.Create(path)
-	if err != nil {
-		return err
-	}
-	err = outputFile.Chown(uid, gid)
-	if err != nil {
-		outputFile.Close()
-		os.Remove(outputFile.Name())
-		return err
-	}
-	err = unix.Dup2(int(outputFile.Fd()), int(os.Stderr.Fd()))
-	if err != nil {
-		outputFile.Close()
-		os.Remove(outputFile.Name())
-		return err
-	}
-	stderrFile = outputFile
-	return nil
-}

experimental/libbox/monitor.go

@@ -1,183 +0,0 @@
-package libbox
-
-import (
-	"context"
-	"net"
-	"net/netip"
-	"sync"
-
-	"github.com/sagernet/sing-tun"
-	"github.com/sagernet/sing/common"
-	E "github.com/sagernet/sing/common/exceptions"
-	M "github.com/sagernet/sing/common/metadata"
-	"github.com/sagernet/sing/common/x/list"
-)
-
-var (
-	_ tun.DefaultInterfaceMonitor = (*platformDefaultInterfaceMonitor)(nil)
-	_ InterfaceUpdateListener     = (*platformDefaultInterfaceMonitor)(nil)
-)
-
-type platformDefaultInterfaceMonitor struct {
-	*platformInterfaceWrapper
-	errorHandler          E.Handler
-	networkAddresses      []networkAddress
-	defaultInterfaceName  string
-	defaultInterfaceIndex int
-	element               *list.Element[tun.NetworkUpdateCallback]
-	access                sync.Mutex
-	callbacks             list.List[tun.DefaultInterfaceUpdateCallback]
-}
-
-type networkAddress struct {
-	interfaceName  string
-	interfaceIndex int
-	addresses      []netip.Prefix
-}
-
-func (m *platformDefaultInterfaceMonitor) Start() error {
-	return m.iif.StartDefaultInterfaceMonitor(m)
-}
-
-func (m *platformDefaultInterfaceMonitor) Close() error {
-	return m.iif.CloseDefaultInterfaceMonitor(m)
-}
-
-func (m *platformDefaultInterfaceMonitor) DefaultInterfaceName(destination netip.Addr) string {
-	for _, address := range m.networkAddresses {
-		for _, prefix := range address.addresses {
-			if prefix.Contains(destination) {
-				return address.interfaceName
-			}
-		}
-	}
-	return m.defaultInterfaceName
-}
-
-func (m *platformDefaultInterfaceMonitor) DefaultInterfaceIndex(destination netip.Addr) int {
-	for _, address := range m.networkAddresses {
-		for _, prefix := range address.addresses {
-			if prefix.Contains(destination) {
-				return address.interfaceIndex
-			}
-		}
-	}
-	return m.defaultInterfaceIndex
-}
-
-func (m *platformDefaultInterfaceMonitor) OverrideAndroidVPN() bool {
-	return false
-}
-
-func (m *platformDefaultInterfaceMonitor) AndroidVPNEnabled() bool {
-	return false
-}
-
-func (m *platformDefaultInterfaceMonitor) RegisterCallback(callback tun.DefaultInterfaceUpdateCallback) *list.Element[tun.DefaultInterfaceUpdateCallback] {
-	m.access.Lock()
-	defer m.access.Unlock()
-	return m.callbacks.PushBack(callback)
-}
-
-func (m *platformDefaultInterfaceMonitor) UnregisterCallback(element *list.Element[tun.DefaultInterfaceUpdateCallback]) {
-	m.access.Lock()
-	defer m.access.Unlock()
-	m.callbacks.Remove(element)
-}
-
-func (m *platformDefaultInterfaceMonitor) UpdateDefaultInterface(interfaceName string, interfaceIndex32 int32) {
-	var err error
-	if m.iif.UsePlatformInterfaceGetter() {
-		err = m.updateInterfacesPlatform()
-	} else {
-		err = m.updateInterfaces()
-	}
-	if err == nil {
-		err = m.router.UpdateInterfaces()
-	}
-	if err != nil {
-		m.errorHandler.NewError(context.Background(), E.Cause(err, "update interfaces"))
-	}
-	interfaceIndex := int(interfaceIndex32)
-	if interfaceName == "" {
-		for _, netIf := range m.networkAddresses {
-			if netIf.interfaceIndex == interfaceIndex {
-				interfaceName = netIf.interfaceName
-				break
-			}
-		}
-	} else if interfaceIndex == -1 {
-		for _, netIf := range m.networkAddresses {
-			if netIf.interfaceName == interfaceName {
-				interfaceIndex = netIf.interfaceIndex
-				break
-			}
-		}
-	}
-	if interfaceName == "" {
-		m.errorHandler.NewError(context.Background(), E.New("invalid interface name for ", interfaceIndex))
-		return
-	} else if interfaceIndex == -1 {
-		m.errorHandler.NewError(context.Background(), E.New("invalid interface index for ", interfaceName))
-		return
-	}
-	if m.defaultInterfaceName == interfaceName && m.defaultInterfaceIndex == interfaceIndex {
-		return
-	}
-	m.defaultInterfaceName = interfaceName
-	m.defaultInterfaceIndex = interfaceIndex
-	m.access.Lock()
-	callbacks := m.callbacks.Array()
-	m.access.Unlock()
-	for _, callback := range callbacks {
-		err = callback(tun.EventInterfaceUpdate)
-		if err != nil {
-			m.errorHandler.NewError(context.Background(), err)
-		}
-	}
-}
-
-func (m *platformDefaultInterfaceMonitor) updateInterfaces() error {
-	interfaces, err := net.Interfaces()
-	if err != nil {
-		return err
-	}
-	var addresses []networkAddress
-	for _, iif := range interfaces {
-		var netAddresses []net.Addr
-		netAddresses, err = iif.Addrs()
-		if err != nil {
-			return err
-		}
-		var address networkAddress
-		address.interfaceName = iif.Name
-		address.interfaceIndex = iif.Index
-		address.addresses = common.Map(common.FilterIsInstance(netAddresses, func(it net.Addr) (*net.IPNet, bool) {
-			value, loaded := it.(*net.IPNet)
-			return value, loaded
-		}), func(it *net.IPNet) netip.Prefix {
-			bits, _ := it.Mask.Size()
-			return netip.PrefixFrom(M.AddrFromIP(it.IP), bits)
-		})
-		addresses = append(addresses, address)
-	}
-	m.networkAddresses = addresses
-	return nil
-}
-
-func (m *platformDefaultInterfaceMonitor) updateInterfacesPlatform() error {
-	interfaces, err := m.Interfaces()
-	if err != nil {
-		return err
-	}
-	var addresses []networkAddress
-	for _, iif := range interfaces {
-		var address networkAddress
-		address.interfaceName = iif.Name
-		address.interfaceIndex = iif.Index
-		// address.addresses = common.Map(iif.Addresses, netip.MustParsePrefix)
-		addresses = append(addresses, address)
-	}
-	m.networkAddresses = addresses
-	return nil
-}

experimental/libbox/platform.go

@@ -1,11 +1,8 @@
 package libbox
 
-import (
-	"github.com/sagernet/sing-box/option"
-)
+import "github.com/sagernet/sing-box/option"
 
 type PlatformInterface interface {
-	UsePlatformAutoDetectInterfaceControl() bool
 	AutoDetectInterfaceControl(fd int32) error
 	OpenTun(options TunOptions) (int32, error)
 	WriteLog(message string)
@@ -13,11 +10,6 @@ type PlatformInterface interface {
 	FindConnectionOwner(ipProtocol int32, sourceAddress string, sourcePort int32, destinationAddress string, destinationPort int32) (int32, error)
 	PackageNameByUid(uid int32) (string, error)
 	UIDByPackageName(packageName string) (int32, error)
-	UsePlatformDefaultInterfaceMonitor() bool
-	StartDefaultInterfaceMonitor(listener InterfaceUpdateListener) error
-	CloseDefaultInterfaceMonitor(listener InterfaceUpdateListener) error
-	UsePlatformInterfaceGetter() bool
-	GetInterfaces() (NetworkInterfaceIterator, error)
 }
 
 type TunInterface interface {
@@ -25,19 +17,8 @@ type TunInterface interface {
 	Close() error
 }
 
-type InterfaceUpdateListener interface {
-	UpdateDefaultInterface(interfaceName string, interfaceIndex int32)
-}
-
-type NetworkInterface struct {
-	Index     int32
-	MTU       int32
-	Name      string
-	Addresses StringIterator
-}
-
-type NetworkInterfaceIterator interface {
-	Next() *NetworkInterface
+type OnDemandRuleIterator interface {
+	Next() OnDemandRule
 	HasNext() bool
 }
 
@@ -50,11 +31,6 @@ type OnDemandRule interface {
 	ProbeURL() string
 }
 
-type OnDemandRuleIterator interface {
-	Next() OnDemandRule
-	HasNext() bool
-}
-
 type onDemandRule struct {
 	option.OnDemandRule
 }

experimental/libbox/platform/interface.go

@@ -1,34 +1,17 @@
 package platform
 
 import (
-	"context"
 	"io"
-	"net/netip"
 
-	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/common/process"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing-tun"
 	"github.com/sagernet/sing/common/control"
-	E "github.com/sagernet/sing/common/exceptions"
 )
 
 type Interface interface {
-	Initialize(ctx context.Context, router adapter.Router) error
-	UsePlatformAutoDetectInterfaceControl() bool
 	AutoDetectInterfaceControl() control.Func
-	OpenTun(options *tun.Options, platformOptions option.TunPlatformOptions) (tun.Tun, error)
-	UsePlatformDefaultInterfaceMonitor() bool
-	CreateDefaultInterfaceMonitor(errorHandler E.Handler) tun.DefaultInterfaceMonitor
-	UsePlatformInterfaceGetter() bool
-	Interfaces() ([]NetworkInterface, error)
+	OpenTun(options tun.Options, platformOptions option.TunPlatformOptions) (tun.Tun, error)
 	process.Searcher
 	io.Writer
 }
-
-type NetworkInterface struct {
-	Index     int
-	MTU       int
-	Name      string
-	Addresses []netip.Prefix
-}

experimental/libbox/service.go

@@ -6,17 +6,14 @@ import (
 	"syscall"
 
 	"github.com/sagernet/sing-box"
-	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/common/process"
 	"github.com/sagernet/sing-box/experimental/libbox/internal/procfs"
 	"github.com/sagernet/sing-box/experimental/libbox/platform"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing-tun"
-	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/control"
 	E "github.com/sagernet/sing/common/exceptions"
 	N "github.com/sagernet/sing/common/network"
-	"github.com/sagernet/sing/service/filemanager"
 )
 
 type BoxService struct {
@@ -31,11 +28,10 @@ func NewService(configContent string, platformInterface PlatformInterface) (*Box
 		return nil, err
 	}
 	ctx, cancel := context.WithCancel(context.Background())
-	ctx = filemanager.WithDefault(ctx, sBasePath, sTempPath, sUserID, sGroupID)
 	instance, err := box.New(box.Options{
 		Context:           ctx,
 		Options:           options,
-		PlatformInterface: &platformInterfaceWrapper{iif: platformInterface, useProcFS: platformInterface.UseProcFS()},
+		PlatformInterface: &platformInterfaceWrapper{platformInterface, platformInterface.UseProcFS()},
 	})
 	if err != nil {
 		cancel()
@@ -62,16 +58,6 @@ var _ platform.Interface = (*platformInterfaceWrapper)(nil)
 type platformInterfaceWrapper struct {
 	iif       PlatformInterface
 	useProcFS bool
-	router    adapter.Router
-}
-
-func (w *platformInterfaceWrapper) Initialize(ctx context.Context, router adapter.Router) error {
-	w.router = router
-	return nil
-}
-
-func (w *platformInterfaceWrapper) UsePlatformAutoDetectInterfaceControl() bool {
-	return w.iif.UsePlatformAutoDetectInterfaceControl()
 }
 
 func (w *platformInterfaceWrapper) AutoDetectInterfaceControl() control.Func {
@@ -82,7 +68,7 @@ func (w *platformInterfaceWrapper) AutoDetectInterfaceControl() control.Func {
 	}
 }
 
-func (w *platformInterfaceWrapper) OpenTun(options *tun.Options, platformOptions option.TunPlatformOptions) (tun.Tun, error) {
+func (w *platformInterfaceWrapper) OpenTun(options tun.Options, platformOptions option.TunPlatformOptions) (tun.Tun, error) {
 	if len(options.IncludeUID) > 0 || len(options.ExcludeUID) > 0 {
 		return nil, E.New("android: unsupported uid options")
 	}
@@ -93,16 +79,12 @@ func (w *platformInterfaceWrapper) OpenTun(options *tun.Options, platformOptions
 	if err != nil {
 		return nil, err
 	}
-	options.Name, err = getTunnelName(tunFd)
-	if err != nil {
-		return nil, E.Cause(err, "query tun name")
-	}
 	dupFd, err := dup(int(tunFd))
 	if err != nil {
 		return nil, E.Cause(err, "dup tun file descriptor")
 	}
 	options.FileDescriptor = dupFd
-	return tun.New(*options)
+	return tun.New(options)
 }
 
 func (w *platformInterfaceWrapper) Write(p []byte) (n int, err error) {
@@ -136,36 +118,3 @@ func (w *platformInterfaceWrapper) FindProcessInfo(ctx context.Context, network
 	packageName, _ := w.iif.PackageNameByUid(uid)
 	return &process.Info{UserId: uid, PackageName: packageName}, nil
 }
-
-func (w *platformInterfaceWrapper) UsePlatformDefaultInterfaceMonitor() bool {
-	return w.iif.UsePlatformDefaultInterfaceMonitor()
-}
-
-func (w *platformInterfaceWrapper) CreateDefaultInterfaceMonitor(errorHandler E.Handler) tun.DefaultInterfaceMonitor {
-	return &platformDefaultInterfaceMonitor{
-		platformInterfaceWrapper: w,
-		errorHandler:             errorHandler,
-		defaultInterfaceIndex:    -1,
-	}
-}
-
-func (w *platformInterfaceWrapper) UsePlatformInterfaceGetter() bool {
-	return w.iif.UsePlatformInterfaceGetter()
-}
-
-func (w *platformInterfaceWrapper) Interfaces() ([]platform.NetworkInterface, error) {
-	interfaceIterator, err := w.iif.GetInterfaces()
-	if err != nil {
-		return nil, err
-	}
-	var interfaces []platform.NetworkInterface
-	for _, netInterface := range iteratorToArray[*NetworkInterface](interfaceIterator) {
-		interfaces = append(interfaces, platform.NetworkInterface{
-			Index:     int(netInterface.Index),
-			MTU:       int(netInterface.MTU),
-			Name:      netInterface.Name,
-			Addresses: common.Map(iteratorToArray[string](netInterface.Addresses), netip.MustParsePrefix),
-		})
-	}
-	return interfaces, nil
-}

experimental/libbox/setup.go

@@ -1,31 +1,17 @@
 package libbox
 
 import (
-	"os"
-
 	C "github.com/sagernet/sing-box/constant"
 
 	"github.com/dustin/go-humanize"
 )
 
-var (
-	sBasePath string
-	sTempPath string
-	sUserID   int
-	sGroupID  int
-)
+func SetBasePath(path string) {
+	C.SetBasePath(path)
+}
 
-func Setup(basePath string, tempPath string, userID int, groupID int) {
-	sBasePath = basePath
-	sTempPath = tempPath
-	sUserID = userID
-	sGroupID = groupID
-	if sUserID == -1 {
-		sUserID = os.Getuid()
-	}
-	if sGroupID == -1 {
-		sGroupID = os.Getgid()
-	}
+func SetTempPath(path string) {
+	C.SetTempPath(path)
 }
 
 func Version() string {

experimental/libbox/tun.go

@@ -59,7 +59,7 @@ func mapRoutePrefix(prefixes []netip.Prefix) RoutePrefixIterator {
 var _ TunOptions = (*tunOptions)(nil)
 
 type tunOptions struct {
-	*tun.Options
+	tun.Options
 	option.TunPlatformOptions
 }
 

experimental/libbox/tun_name_darwin.go

@@ -1,11 +0,0 @@
-package libbox
-
-import "golang.org/x/sys/unix"
-
-func getTunnelName(fd int32) (string, error) {
-	return unix.GetsockoptString(
-		int(fd),
-		2, /* #define SYSPROTO_CONTROL 2 */
-		2, /* #define UTUN_OPT_IFNAME 2 */
-	)
-}

experimental/libbox/tun_name_linux.go

@@ -1,26 +0,0 @@
-package libbox
-
-import (
-	"fmt"
-	"syscall"
-	"unsafe"
-
-	"golang.org/x/sys/unix"
-)
-
-const ifReqSize = unix.IFNAMSIZ + 64
-
-func getTunnelName(fd int32) (string, error) {
-	var ifr [ifReqSize]byte
-	var errno syscall.Errno
-	_, _, errno = unix.Syscall(
-		unix.SYS_IOCTL,
-		uintptr(fd),
-		uintptr(unix.TUNGETIFF),
-		uintptr(unsafe.Pointer(&ifr[0])),
-	)
-	if errno != 0 {
-		return "", fmt.Errorf("failed to get name of TUN device: %w", errno)
-	}
-	return unix.ByteSliceToString(ifr[:]), nil
-}

experimental/libbox/tun_name_other.go

@@ -1,9 +0,0 @@
-//go:build !(darwin || linux)
-
-package libbox
-
-import "os"
-
-func getTunnelName(fd int32) (string, error) {
-	return "", os.ErrInvalid
-}

go.mod

@@ -4,7 +4,7 @@ go 1.18
 
 require (
 	berty.tech/go-libtor v1.0.385
-	github.com/Dreamacro/clash v1.15.0
+	github.com/Dreamacro/clash v1.14.0
 	github.com/caddyserver/certmagic v0.17.2
 	github.com/cretz/bine v0.2.0
 	github.com/dustin/go-humanize v1.0.1
@@ -25,17 +25,17 @@ require (
 	github.com/sagernet/gomobile v0.0.0-20230413023804-244d7ff07035
 	github.com/sagernet/quic-go v0.0.0-20230202071646-a8c8afb18b32
 	github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691
-	github.com/sagernet/sing v0.2.4
-	github.com/sagernet/sing-dns v0.1.5-0.20230415085626-111ecf799dfc
-	github.com/sagernet/sing-shadowsocks v0.2.2-0.20230417102954-f77257340507
-	github.com/sagernet/sing-shadowtls v0.1.2-0.20230417103049-4f682e05f19b
-	github.com/sagernet/sing-tun v0.1.5-0.20230422121432-209ec123ca7b
-	github.com/sagernet/sing-vmess v0.1.5-0.20230417103030-8c3070ae3fb3
+	github.com/sagernet/sing v0.2.3-0.20230413023204-48b019b13e78
+	github.com/sagernet/sing-dns v0.1.5-0.20230408004833-5adaf486d440
+	github.com/sagernet/sing-shadowsocks v0.2.1-0.20230412123110-1a7c32b4e2e7
+	github.com/sagernet/sing-shadowtls v0.1.1-0.20230409094821-9abef019436f
+	github.com/sagernet/sing-tun v0.1.4-0.20230326080954-8848c0e4cbab
+	github.com/sagernet/sing-vmess v0.1.4-0.20230412122845-9470e68f5e45
 	github.com/sagernet/smux v0.0.0-20230312102458-337ec2a5af37
 	github.com/sagernet/tfo-go v0.0.0-20230303015439-ffcfd8c41cf9
 	github.com/sagernet/utls v0.0.0-20230309024959-6732c2ab36f2
 	github.com/sagernet/websocket v0.0.0-20220913015213-615516348b4e
-	github.com/sagernet/wireguard-go v0.0.0-20230420044414-a7bac1754e77
+	github.com/sagernet/wireguard-go v0.0.0-20221116151939-c99467f53f2c
 	github.com/spf13/cobra v1.7.0
 	github.com/stretchr/testify v1.8.2
 	go.etcd.io/bbolt v1.3.7
@@ -48,7 +48,7 @@ require (
 	golang.zx2c4.com/wireguard/wgctrl v0.0.0-20230215201556-9c5414ab4bde
 	google.golang.org/grpc v1.54.0
 	google.golang.org/protobuf v1.30.0
-	gvisor.dev/gvisor v0.0.0-20230415003630-3981d5d5e523
+	gvisor.dev/gvisor v0.0.0-20220901235040-6ca97ef2ce1c
 )
 
 //replace github.com/sagernet/sing => ../sing
@@ -85,7 +85,7 @@ require (
 	go.uber.org/multierr v1.6.0 // indirect
 	golang.org/x/mod v0.8.0 // indirect
 	golang.org/x/text v0.9.0 // indirect
-	golang.org/x/time v0.0.0-20220210224613-90d013bbcef8 // indirect
+	golang.org/x/time v0.0.0-20191024005414-555d28b269f0 // indirect
 	golang.org/x/tools v0.6.0 // indirect
 	google.golang.org/genproto v0.0.0-20230110181048-76db0878b65f // indirect
 	gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect

go.sum

@@ -1,7 +1,7 @@
 berty.tech/go-libtor v1.0.385 h1:RWK94C3hZj6Z2GdvePpHJLnWYobFr3bY/OdUJ5aoEXw=
 berty.tech/go-libtor v1.0.385/go.mod h1:9swOOQVb+kmvuAlsgWUK/4c52pm69AdbJsxLzk+fJEw=
-github.com/Dreamacro/clash v1.15.0 h1:mlpD950VEggXZBNahV66hyKDRxcczkj3vymoAt78KyE=
-github.com/Dreamacro/clash v1.15.0/go.mod h1:WNH69bN11LiAdgdSr4hpkEuXVMfBbWyhEKMCTx9BtNE=
+github.com/Dreamacro/clash v1.14.0 h1:ehJ/C/1m9LEjmME72WSE/Y2YqbR3Q54AbjqiRCvtyW4=
+github.com/Dreamacro/clash v1.14.0/go.mod h1:ia2CU7V713H1QdCqMwOLK9U9V5Ay8X0voj3yQr2tk+I=
 github.com/ajg/form v1.5.1 h1:t9c7v8JUKu/XxOGBU0yjNpaMloxGEJhUkqFRq0ibGeU=
 github.com/ajg/form v1.5.1/go.mod h1:uL1WgH+h2mgNtvBq0339dVnzXdBETtL2LeUXaIv25UY=
 github.com/andybalholm/brotli v1.0.5 h1:8uQZIdzKmjc/iuPu7O2ioW48L81FgatrcpfFmiq/cCs=
@@ -101,6 +101,8 @@ github.com/sagernet/cloudflare-tls v0.0.0-20221031050923-d70792f4c3a0 h1:KyhtFFt
 github.com/sagernet/cloudflare-tls v0.0.0-20221031050923-d70792f4c3a0/go.mod h1:D4SFEOkJK+4W1v86ZhX0jPM0rAL498fyQAChqMtes/I=
 github.com/sagernet/go-tun2socks v1.16.12-0.20220818015926-16cb67876a61 h1:5+m7c6AkmAylhauulqN/c5dnh8/KssrE9c93TQrXldA=
 github.com/sagernet/go-tun2socks v1.16.12-0.20220818015926-16cb67876a61/go.mod h1:QUQ4RRHD6hGGHdFMEtR8T2P6GS6R3D/CXKdaYHKKXms=
+github.com/sagernet/gomobile v0.0.0-20230413023437-ec061884b992 h1:WkcHhOX3ce9ElLKDUQKJrAt7SjpKNnASsPbMfqfZEPc=
+github.com/sagernet/gomobile v0.0.0-20230413023437-ec061884b992/go.mod h1:5YE39YkJkCcMsfq1jMKkjsrM2GfBoF9JVWnvU89hmvU=
 github.com/sagernet/gomobile v0.0.0-20230413023804-244d7ff07035 h1:KttYh6bBhIw8Y6/Ljn7CGwC3CKZn788rzMJmeAKjY+8=
 github.com/sagernet/gomobile v0.0.0-20230413023804-244d7ff07035/go.mod h1:5YE39YkJkCcMsfq1jMKkjsrM2GfBoF9JVWnvU89hmvU=
 github.com/sagernet/netlink v0.0.0-20220905062125-8043b4a9aa97 h1:iL5gZI3uFp0X6EslacyapiRz7LLSJyr4RajF/BhMVyE=
@@ -111,18 +113,18 @@ github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691 h1:5Th31OC6yj8byL
 github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691/go.mod h1:B8lp4WkQ1PwNnrVMM6KyuFR20pU8jYBD+A4EhJovEXU=
 github.com/sagernet/sing v0.0.0-20220817130738-ce854cda8522/go.mod h1:QVsS5L/ZA2Q5UhQwLrn0Trw+msNd/NPGEhBKR/ioWiY=
 github.com/sagernet/sing v0.1.8/go.mod h1:jt1w2u7lJQFFSGLiRrRIs5YWmx4kAPfWuOejuDW9qMk=
-github.com/sagernet/sing v0.2.4 h1:gC8BR5sglbJZX23RtMyFa8EETP9YEUADhfbEzU1yVbo=
-github.com/sagernet/sing v0.2.4/go.mod h1:Ta8nHnDLAwqySzKhGoKk4ZIB+vJ3GTKj7UPrWYvM+4w=
-github.com/sagernet/sing-dns v0.1.5-0.20230415085626-111ecf799dfc h1:hmbuqKv48SAjiKPoqtJGvS5pEHVPZjTHq9CPwQY2cZ4=
-github.com/sagernet/sing-dns v0.1.5-0.20230415085626-111ecf799dfc/go.mod h1:ZKuuqgsHRxDahYrzgSgy4vIAGGuKPlIf4hLcNzYzLkY=
-github.com/sagernet/sing-shadowsocks v0.2.2-0.20230417102954-f77257340507 h1:bAHZCdWqJkb8LEW98+YsMVDXGRMUVjka8IC+St6ot88=
-github.com/sagernet/sing-shadowsocks v0.2.2-0.20230417102954-f77257340507/go.mod h1:UJjvQGw0lyYaDGIDvUraL16fwaAEH1WFw1Y6sUcMPog=
-github.com/sagernet/sing-shadowtls v0.1.2-0.20230417103049-4f682e05f19b h1:ouW/6IDCrxkBe19YSbdCd7buHix7b+UZ6BM4Zz74XF4=
-github.com/sagernet/sing-shadowtls v0.1.2-0.20230417103049-4f682e05f19b/go.mod h1:oG8bPerYI6cZ74KquY3DvA7ynECyrILPBnce6wtBqeI=
-github.com/sagernet/sing-tun v0.1.5-0.20230422121432-209ec123ca7b h1:9NsciSJGwzdkXwVvT2c2g+RvkTVkANeBLr2l+soJ7LM=
-github.com/sagernet/sing-tun v0.1.5-0.20230422121432-209ec123ca7b/go.mod h1:DD7Ce2Gt0GFc6I/1+Uw4D/aUlBsGqrQsC52CMK/V818=
-github.com/sagernet/sing-vmess v0.1.5-0.20230417103030-8c3070ae3fb3 h1:BHOnxrbC929JonuKqFdJ7ZbDp7zs4oTlH5KFvKtWu9U=
-github.com/sagernet/sing-vmess v0.1.5-0.20230417103030-8c3070ae3fb3/go.mod h1:yKrAr+dqZd64DxBXCHWrYicp+n4qbqO73mtwv3dck8U=
+github.com/sagernet/sing v0.2.3-0.20230413023204-48b019b13e78 h1:bTE9RgURmiFiTjXaYN6q9BYPTBPKIzlFYNy2p+WOubI=
+github.com/sagernet/sing v0.2.3-0.20230413023204-48b019b13e78/go.mod h1:Ta8nHnDLAwqySzKhGoKk4ZIB+vJ3GTKj7UPrWYvM+4w=
+github.com/sagernet/sing-dns v0.1.5-0.20230408004833-5adaf486d440 h1:VH8/BcOVuApHtS+vKP+khxlGRcXH7KKhgkTDtNynqSQ=
+github.com/sagernet/sing-dns v0.1.5-0.20230408004833-5adaf486d440/go.mod h1:69PNSHyEmXdjf6C+bXBOdr2GQnPeEyWjIzo/MV8gmz8=
+github.com/sagernet/sing-shadowsocks v0.2.1-0.20230412123110-1a7c32b4e2e7 h1:3WDMIF1aE/twc5gJ+9PF2ZJqUxwZ80MPtNBKE3yBevU=
+github.com/sagernet/sing-shadowsocks v0.2.1-0.20230412123110-1a7c32b4e2e7/go.mod h1:WoVjGUvRqsx5yhYeDAB5CijCHpNDi0LUPHl3cf7u8Lc=
+github.com/sagernet/sing-shadowtls v0.1.1-0.20230409094821-9abef019436f h1:qzQvpcDm60zPW8UlZa8UEaBoFORFeGAnhDncPc3VWT4=
+github.com/sagernet/sing-shadowtls v0.1.1-0.20230409094821-9abef019436f/go.mod h1:MxB+Q9H0pAHcrlvNmwSs1crljRwHFFVhtXyOMBy44Nw=
+github.com/sagernet/sing-tun v0.1.4-0.20230326080954-8848c0e4cbab h1:a9oeWuPBuIZ70qMhIIH6RrYhp886xN9jJIwsuu4ZFUo=
+github.com/sagernet/sing-tun v0.1.4-0.20230326080954-8848c0e4cbab/go.mod h1:4YxIDEkkCjGXDOTMPw1SXpLmCQUFAWuaQN250oo+928=
+github.com/sagernet/sing-vmess v0.1.4-0.20230412122845-9470e68f5e45 h1:QqYhWah3u+o2tvLRuTfEu3BwsGpf/wNnVK/VNQV2YBM=
+github.com/sagernet/sing-vmess v0.1.4-0.20230412122845-9470e68f5e45/go.mod h1:eULig3LgaeNiWSquSlzXF42Joypsj3fO1W+Qy93o6hk=
 github.com/sagernet/smux v0.0.0-20230312102458-337ec2a5af37 h1:HuE6xSwco/Xed8ajZ+coeYLmioq0Qp1/Z2zczFaV8as=
 github.com/sagernet/smux v0.0.0-20230312102458-337ec2a5af37/go.mod h1:3skNSftZDJWTGVtVaM2jfbce8qHnmH/AGDRe62iNOg0=
 github.com/sagernet/tfo-go v0.0.0-20230303015439-ffcfd8c41cf9 h1:2ItpW1nMNkPzmBTxV0/eClCklHrFSQMnUGcpUmJxVeE=
@@ -131,8 +133,8 @@ github.com/sagernet/utls v0.0.0-20230309024959-6732c2ab36f2 h1:kDUqhc9Vsk5HJuhfI
 github.com/sagernet/utls v0.0.0-20230309024959-6732c2ab36f2/go.mod h1:JKQMZq/O2qnZjdrt+B57olmfgEmLtY9iiSIEYtWvoSM=
 github.com/sagernet/websocket v0.0.0-20220913015213-615516348b4e h1:7uw2njHFGE+VpWamge6o56j2RWk4omF6uLKKxMmcWvs=
 github.com/sagernet/websocket v0.0.0-20220913015213-615516348b4e/go.mod h1:45TUl8+gH4SIKr4ykREbxKWTxkDlSzFENzctB1dVRRY=
-github.com/sagernet/wireguard-go v0.0.0-20230420044414-a7bac1754e77 h1:g6QtRWQ2dKX7EQP++1JLNtw4C2TNxd4/ov8YUpOPOSo=
-github.com/sagernet/wireguard-go v0.0.0-20230420044414-a7bac1754e77/go.mod h1:pJDdXzZIwJ+2vmnT0TKzmf8meeum+e2mTDSehw79eE0=
+github.com/sagernet/wireguard-go v0.0.0-20221116151939-c99467f53f2c h1:vK2wyt9aWYHHvNLWniwijBu/n4pySypiKRhN32u/JGo=
+github.com/sagernet/wireguard-go v0.0.0-20221116151939-c99467f53f2c/go.mod h1:euOmN6O5kk9dQmgSS8Df4psAl3TCjxOz0NW60EWkSaI=
 github.com/spf13/cobra v1.7.0 h1:hyqWnYt1ZQShIddO5kBpj3vu05/++x6tJ6dg8EC572I=
 github.com/spf13/cobra v1.7.0/go.mod h1:uLxZILRyS/50WlhOIKD7W6V5bgeIt+4sICxh6uRMrb0=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
@@ -208,8 +210,8 @@ golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.9.0 h1:2sjJmO8cDvYveuX97RDLsxlyUxLl+GHoLxBiRdHllBE=
 golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
-golang.org/x/time v0.0.0-20220210224613-90d013bbcef8 h1:vVKdlvoWBphwdxWKrFZEuM0kGgGLxUOYcY4U/2Vjg44=
-golang.org/x/time v0.0.0-20220210224613-90d013bbcef8/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
+golang.org/x/time v0.0.0-20191024005414-555d28b269f0 h1:/5xXl8Y5W96D+TtHSlonuFqGHIWVuyCkGJLwGh9JJFs=
+golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
@@ -236,7 +238,7 @@ gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gvisor.dev/gvisor v0.0.0-20230415003630-3981d5d5e523 h1:zUQYeyyPLnSR6yMvLSOmLH37xDWCZ7BqlpE69fE5K3Q=
-gvisor.dev/gvisor v0.0.0-20230415003630-3981d5d5e523/go.mod h1:pzr6sy8gDLfVmDAg8OYrlKvGEHw5C3PGTiBXBTCx76Q=
+gvisor.dev/gvisor v0.0.0-20220901235040-6ca97ef2ce1c h1:m5lcgWnL3OElQNVyp3qcncItJ2c0sQlSGjYK2+nJTA4=
+gvisor.dev/gvisor v0.0.0-20220901235040-6ca97ef2ce1c/go.mod h1:TIvkJD0sxe8pIob3p6T8IzxXunlp6yfgktvTNp+DGNM=
 lukechampine.com/blake3 v1.1.7 h1:GgRMhmdsuK8+ii6UZFDL8Nb+VyMwadAgcJyfYHxG6n0=
 lukechampine.com/blake3 v1.1.7/go.mod h1:tkKEOtDkNtklkXtLNEOGNq5tcV90tJiA1vAA12R78LA=

inbound/naive.go

@@ -609,10 +609,6 @@ func (c *naiveH2Conn) SetWriteDeadline(t time.Time) error {
 	return os.ErrInvalid
 }
 
-func (c *naiveH2Conn) NeedAdditionalReadDeadline() bool {
-	return true
-}
-
 func (c *naiveH2Conn) UpstreamReader() any {
 	return c.reader
 }

inbound/shadowsocks_multi.go

@@ -9,8 +9,6 @@ import (
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing-shadowsocks"
-	"github.com/sagernet/sing-shadowsocks/shadowaead"
 	"github.com/sagernet/sing-shadowsocks/shadowaead_2022"
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/auth"
@@ -27,7 +25,7 @@ var (
 
 type ShadowsocksMulti struct {
 	myInboundAdapter
-	service shadowsocks.MultiService[int]
+	service *shadowaead_2022.MultiService[int]
 	users   []option.ShadowsocksUser
 }
 
@@ -51,26 +49,16 @@ func newShadowsocksMulti(ctx context.Context, router adapter.Router, logger log.
 	} else {
 		udpTimeout = int64(C.UDPTimeout.Seconds())
 	}
-	var (
-		service shadowsocks.MultiService[int]
-		err     error
-	)
-	if common.Contains(shadowaead_2022.List, options.Method) {
-		service, err = shadowaead_2022.NewMultiServiceWithPassword[int](
-			options.Method,
-			options.Password,
-			udpTimeout,
-			adapter.NewUpstreamContextHandler(inbound.newConnection, inbound.newPacketConnection, inbound),
-			router.TimeFunc(),
-		)
-	} else if common.Contains(shadowaead.List, options.Method) {
-		service, err = shadowaead.NewMultiService[int](
-			options.Method,
-			udpTimeout,
-			adapter.NewUpstreamContextHandler(inbound.newConnection, inbound.newPacketConnection, inbound))
-	} else {
+	if !common.Contains(shadowaead_2022.List, options.Method) {
 		return nil, E.New("unsupported method: " + options.Method)
 	}
+	service, err := shadowaead_2022.NewMultiServiceWithPassword[int](
+		options.Method,
+		options.Password,
+		udpTimeout,
+		adapter.NewUpstreamContextHandler(inbound.newConnection, inbound.newPacketConnection, inbound),
+		router.TimeFunc(),
+	)
 	if err != nil {
 		return nil, err
 	}

inbound/tun.go

@@ -152,7 +152,7 @@ func (t *Tun) Start() error {
 	)
 	t.logger.Trace("opening interface")
 	if t.platformInterface != nil {
-		tunInterface, err = t.platformInterface.OpenTun(&t.tunOptions, t.platformOptions)
+		tunInterface, err = t.platformInterface.OpenTun(t.tunOptions, t.platformOptions)
 	} else {
 		tunInterface, err = tun.New(t.tunOptions)
 	}
@@ -177,8 +177,7 @@ func (t *Tun) Start() error {
 		Router:                 tunRouter,
 		Handler:                t,
 		Logger:                 t.logger,
-		ForwarderBindInterface: t.platformInterface != nil,
-		InterfaceFinder:        t.router.InterfaceFinder(),
+		UnderPlatform:          t.platformInterface != nil,
 	})
 	if err != nil {
 		return err

inbound/vless.go

@@ -16,6 +16,7 @@ import (
 	"github.com/sagernet/sing-vmess/packetaddr"
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/auth"
+	"github.com/sagernet/sing/common/bufio/deadline"
 	E "github.com/sagernet/sing/common/exceptions"
 	F "github.com/sagernet/sing/common/format"
 	M "github.com/sagernet/sing/common/metadata"
@@ -171,7 +172,7 @@ func (h *VLESS) newPacketConnection(ctx context.Context, conn N.PacketConn, meta
 	}
 	if metadata.Destination.Fqdn == packetaddr.SeqPacketMagicAddress {
 		metadata.Destination = M.Socksaddr{}
-		conn = packetaddr.NewConn(conn.(vmess.PacketConn), metadata.Destination)
+		conn = deadline.NewPacketConn(packetaddr.NewConn(conn.(vmess.PacketConn), metadata.Destination))
 		h.logger.InfoContext(ctx, "[", user, "] inbound packet addr connection")
 	} else {
 		h.logger.InfoContext(ctx, "[", user, "] inbound packet connection to ", metadata.Destination)

inbound/vmess.go

@@ -15,6 +15,7 @@ import (
 	"github.com/sagernet/sing-vmess/packetaddr"
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/auth"
+	"github.com/sagernet/sing/common/bufio/deadline"
 	E "github.com/sagernet/sing/common/exceptions"
 	F "github.com/sagernet/sing/common/format"
 	M "github.com/sagernet/sing/common/metadata"
@@ -179,7 +180,7 @@ func (h *VMess) newPacketConnection(ctx context.Context, conn N.PacketConn, meta
 	}
 	if metadata.Destination.Fqdn == packetaddr.SeqPacketMagicAddress {
 		metadata.Destination = M.Socksaddr{}
-		conn = packetaddr.NewConn(conn.(vmess.PacketConn), metadata.Destination)
+		conn = deadline.NewPacketConn(packetaddr.NewConn(conn.(vmess.PacketConn), metadata.Destination))
 		h.logger.InfoContext(ctx, "[", user, "] inbound packet addr connection")
 	} else {
 		h.logger.InfoContext(ctx, "[", user, "] inbound packet connection to ", metadata.Destination)

include/clashapi_stub.go

@@ -3,8 +3,6 @@
 package include
 
 import (
-	"context"
-
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/experimental"
 	"github.com/sagernet/sing-box/log"
@@ -13,7 +11,7 @@ import (
 )
 
 func init() {
-	experimental.RegisterClashServerConstructor(func(ctx context.Context, router adapter.Router, logFactory log.ObservableFactory, options option.ClashAPIOptions) (adapter.ClashServer, error) {
+	experimental.RegisterClashServerConstructor(func(router adapter.Router, logFactory log.ObservableFactory, options option.ClashAPIOptions) (adapter.ClashServer, error) {
 		return nil, E.New(`clash api is not included in this build, rebuild with -tags with_clash_api`)
 	})
 }

log/log.go

@@ -1,15 +1,14 @@
 package log
 
 import (
-	"context"
 	"io"
 	"os"
 	"time"
 
+	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing/common"
 	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/service/filemanager"
 )
 
 type factoryWithFile struct {
@@ -37,7 +36,6 @@ func (f *observableFactoryWithFile) Close() error {
 }
 
 type Options struct {
-	Context        context.Context
 	Options        option.LogOptions
 	Observable     bool
 	DefaultWriter  io.Writer
@@ -67,7 +65,7 @@ func New(options Options) (Factory, error) {
 		logWriter = os.Stdout
 	default:
 		var err error
-		logFile, err = filemanager.OpenFile(options.Context, logOptions.Output, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0o644)
+		logFile, err = os.OpenFile(C.BasePath(logOptions.Output), os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0o644)
 		if err != nil {
 			return nil, err
 		}

option/debug.go

@@ -7,7 +7,6 @@ import (
 )
 
 type DebugOptions struct {
-	Listen       string      `json:"listen,omitempty"`
 	GCPercent    *int        `json:"gc_percent,omitempty"`
 	MaxStack     *int        `json:"max_stack,omitempty"`
 	MaxThreads   *int        `json:"max_threads,omitempty"`

option/outbound.go

@@ -150,5 +150,4 @@ type MultiplexOptions struct {
 	MaxConnections int    `json:"max_connections,omitempty"`
 	MinStreams     int    `json:"min_streams,omitempty"`
 	MaxStreams     int    `json:"max_streams,omitempty"`
-	Padding        bool   `json:"padding,omitempty"`
 }

option/shadowsocks.go

@@ -4,7 +4,7 @@ type ShadowsocksInboundOptions struct {
 	ListenOptions
 	Network      NetworkList              `json:"network,omitempty"`
 	Method       string                   `json:"method"`
-	Password     string                   `json:"password,omitempty"`
+	Password     string                   `json:"password"`
 	Users        []ShadowsocksUser        `json:"users,omitempty"`
 	Destinations []ShadowsocksDestination `json:"destinations,omitempty"`
 }

outbound/default.go

@@ -39,10 +39,6 @@ func (a *myOutboundAdapter) Network() []string {
 	return a.network
 }
 
-func (a *myOutboundAdapter) NewError(ctx context.Context, err error) {
-	NewError(a.logger, ctx, err)
-}
-
 func NewConnection(ctx context.Context, this N.Dialer, conn net.Conn, metadata adapter.InboundContext) error {
 	ctx = adapter.WithContext(ctx, &metadata)
 	var outConn net.Conn
@@ -125,12 +121,3 @@ func CopyEarlyConn(ctx context.Context, conn net.Conn, serverConn net.Conn) erro
 	}
 	return bufio.CopyConn(ctx, conn, serverConn)
 }
-
-func NewError(logger log.ContextLogger, ctx context.Context, err error) {
-	common.Close(err)
-	if E.IsClosedOrCanceled(err) {
-		logger.DebugContext(ctx, "connection closed: ", err)
-		return
-	}
-	logger.ErrorContext(ctx, err)
-}

outbound/shadowsocks.go

@@ -30,7 +30,7 @@ type Shadowsocks struct {
 	serverAddr      M.Socksaddr
 	plugin          sip003.Plugin
 	uotClient       *uot.Client
-	multiplexDialer *mux.Client
+	multiplexDialer N.Dialer
 }
 
 func NewShadowsocks(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.ShadowsocksOutboundOptions) (*Shadowsocks, error) {
@@ -127,15 +127,8 @@ func (h *Shadowsocks) NewPacketConnection(ctx context.Context, conn N.PacketConn
 	return NewPacketConnection(ctx, h, conn, metadata)
 }
 
-func (h *Shadowsocks) InterfaceUpdated() error {
-	if h.multiplexDialer != nil {
-		h.multiplexDialer.Reset()
-	}
-	return nil
-}
-
 func (h *Shadowsocks) Close() error {
-	return common.Close(common.PtrOrNil(h.multiplexDialer))
+	return common.Close(h.multiplexDialer)
 }
 
 var _ N.Dialer = (*shadowsocksDialer)(nil)

outbound/trojan.go

@@ -27,7 +27,7 @@ type Trojan struct {
 	dialer          N.Dialer
 	serverAddr      M.Socksaddr
 	key             [56]byte
-	multiplexDialer *mux.Client
+	multiplexDialer N.Dialer
 	tlsConfig       tls.Config
 	transport       adapter.V2RayClientTransport
 }
@@ -103,15 +103,8 @@ func (h *Trojan) NewPacketConnection(ctx context.Context, conn N.PacketConn, met
 	return NewPacketConnection(ctx, h, conn, metadata)
 }
 
-func (h *Trojan) InterfaceUpdated() error {
-	if h.multiplexDialer != nil {
-		h.multiplexDialer.Reset()
-	}
-	return nil
-}
-
 func (h *Trojan) Close() error {
-	return common.Close(common.PtrOrNil(h.multiplexDialer), h.transport)
+	return common.Close(h.multiplexDialer, h.transport)
 }
 
 type trojanDialer Trojan

outbound/urltest.go

@@ -13,7 +13,6 @@ import (
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing/common"
-	"github.com/sagernet/sing/common/atomic"
 	"github.com/sagernet/sing/common/batch"
 	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
@@ -21,9 +20,8 @@ import (
 )
 
 var (
-	_ adapter.Outbound                = (*URLTest)(nil)
-	_ adapter.OutboundGroup           = (*URLTest)(nil)
-	_ adapter.InterfaceUpdateListener = (*URLTest)(nil)
+	_ adapter.Outbound      = (*URLTest)(nil)
+	_ adapter.OutboundGroup = (*URLTest)(nil)
 )
 
 type URLTest struct {
@@ -73,8 +71,7 @@ func (s *URLTest) Start() error {
 		outbounds = append(outbounds, detour)
 	}
 	s.group = NewURLTestGroup(s.ctx, s.router, s.logger, outbounds, s.link, s.interval, s.tolerance)
-	go s.group.CheckOutbounds(false)
-	return nil
+	return s.group.Start()
 }
 
 func (s *URLTest) Close() error {
@@ -96,7 +93,6 @@ func (s *URLTest) URLTest(ctx context.Context, link string) (map[string]uint16,
 }
 
 func (s *URLTest) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
-	s.group.Start()
 	outbound := s.group.Select(network)
 	conn, err := outbound.DialContext(ctx, network, destination)
 	if err == nil {
@@ -108,7 +104,6 @@ func (s *URLTest) DialContext(ctx context.Context, network string, destination M
 }
 
 func (s *URLTest) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
-	s.group.Start()
 	outbound := s.group.Select(N.NetworkUDP)
 	conn, err := outbound.ListenPacket(ctx, destination)
 	if err == nil {
@@ -127,11 +122,6 @@ func (s *URLTest) NewPacketConnection(ctx context.Context, conn N.PacketConn, me
 	return NewPacketConnection(ctx, s, conn, metadata)
 }
 
-func (s *URLTest) InterfaceUpdated() error {
-	go s.group.CheckOutbounds(true)
-	return nil
-}
-
 type URLTestGroup struct {
 	ctx       context.Context
 	router    adapter.Router
@@ -141,9 +131,7 @@ type URLTestGroup struct {
 	interval  time.Duration
 	tolerance uint16
 	history   *urltest.HistoryStorage
-	checking  atomic.Bool
 
-	access sync.Mutex
 	ticker *time.Ticker
 	close  chan struct{}
 }
@@ -174,23 +162,13 @@ func NewURLTestGroup(ctx context.Context, router adapter.Router, logger log.Logg
 	}
 }
 
-func (g *URLTestGroup) Start() {
-	if g.ticker != nil {
-		return
-	}
-	g.access.Lock()
-	defer g.access.Unlock()
-	if g.ticker != nil {
-		return
-	}
+func (g *URLTestGroup) Start() error {
 	g.ticker = time.NewTicker(g.interval)
 	go g.loopCheck()
+	return nil
 }
 
 func (g *URLTestGroup) Close() error {
-	if g.ticker == nil {
-		return nil
-	}
 	g.ticker.Stop()
 	close(g.close)
 	return nil
@@ -250,33 +228,25 @@ func (g *URLTestGroup) Fallback(used adapter.Outbound) []adapter.Outbound {
 }
 
 func (g *URLTestGroup) loopCheck() {
-	go g.CheckOutbounds(true)
+	go g.checkOutbounds()
 	for {
 		select {
 		case <-g.close:
 			return
 		case <-g.ticker.C:
-			g.CheckOutbounds(false)
+			g.checkOutbounds()
 		}
 	}
 }
 
-func (g *URLTestGroup) CheckOutbounds(force bool) {
-	_, _ = g.urlTest(g.ctx, g.link, force)
+func (g *URLTestGroup) checkOutbounds() {
+	_, _ = g.URLTest(g.ctx, g.link)
 }
 
 func (g *URLTestGroup) URLTest(ctx context.Context, link string) (map[string]uint16, error) {
-	return g.urlTest(ctx, link, false)
-}
-
-func (g *URLTestGroup) urlTest(ctx context.Context, link string, force bool) (map[string]uint16, error) {
-	result := make(map[string]uint16)
-	if g.checking.Swap(true) {
-		return result, nil
-	}
-	defer g.checking.Store(false)
 	b, _ := batch.New(ctx, batch.WithConcurrencyNum[any](10))
 	checked := make(map[string]bool)
+	result := make(map[string]uint16)
 	var resultAccess sync.Mutex
 	for _, detour := range g.outbounds {
 		tag := detour.Tag()
@@ -285,7 +255,7 @@ func (g *URLTestGroup) urlTest(ctx context.Context, link string, force bool) (ma
 			continue
 		}
 		history := g.history.LoadURLTestHistory(realTag)
-		if !force && history != nil && time.Now().Sub(history.Time) < g.interval {
+		if history != nil && time.Now().Sub(history.Time) < g.interval {
 			continue
 		}
 		checked[realTag] = true

outbound/vmess.go

@@ -27,7 +27,7 @@ type VMess struct {
 	dialer          N.Dialer
 	client          *vmess.Client
 	serverAddr      M.Socksaddr
-	multiplexDialer *mux.Client
+	multiplexDialer N.Dialer
 	tlsConfig       tls.Config
 	transport       adapter.V2RayClientTransport
 	packetAddr      bool
@@ -97,15 +97,8 @@ func NewVMess(ctx context.Context, router adapter.Router, logger log.ContextLogg
 	return outbound, nil
 }
 
-func (h *VMess) InterfaceUpdated() error {
-	if h.multiplexDialer != nil {
-		h.multiplexDialer.Reset()
-	}
-	return nil
-}
-
 func (h *VMess) Close() error {
-	return common.Close(common.PtrOrNil(h.multiplexDialer), h.transport)
+	return common.Close(h.multiplexDialer, h.transport)
 }
 
 func (h *VMess) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {

outbound/wireguard.go

@@ -67,7 +67,7 @@ func NewWireGuard(ctx context.Context, router adapter.Router, logger log.Context
 			connectAddr = options.ServerOptions.Build()
 		}
 	}
-	outbound.bind = wireguard.NewClientBind(ctx, outbound, dialer.New(router, options.DialerOptions), isConnect, connectAddr, reserved)
+	outbound.bind = wireguard.NewClientBind(ctx, dialer.New(router, options.DialerOptions), isConnect, connectAddr, reserved)
 	localPrefixes := common.Map(options.LocalAddress, option.ListenPrefix.Build)
 	if len(localPrefixes) == 0 {
 		return nil, E.New("missing local address")

route/interface_finder.go

@@ -9,7 +9,7 @@ import (
 var _ control.InterfaceFinder = (*myInterfaceFinder)(nil)
 
 type myInterfaceFinder struct {
-	interfaces []net.Interface
+	ifs []net.Interface
 }
 
 func (f *myInterfaceFinder) update() error {
@@ -17,16 +17,12 @@ func (f *myInterfaceFinder) update() error {
 	if err != nil {
 		return err
 	}
-	f.interfaces = ifs
+	f.ifs = ifs
 	return nil
 }
 
-func (f *myInterfaceFinder) updateInterfaces(interfaces []net.Interface) {
-	f.interfaces = interfaces
-}
-
 func (f *myInterfaceFinder) InterfaceIndexByName(name string) (interfaceIndex int, err error) {
-	for _, netInterface := range f.interfaces {
+	for _, netInterface := range f.ifs {
 		if netInterface.Name == name {
 			return netInterface.Index, nil
 		}
@@ -40,7 +36,7 @@ func (f *myInterfaceFinder) InterfaceIndexByName(name string) (interfaceIndex in
 }
 
 func (f *myInterfaceFinder) InterfaceNameByIndex(index int) (interfaceName string, err error) {
-	for _, netInterface := range f.interfaces {
+	for _, netInterface := range f.ifs {
 		if netInterface.Index == index {
 			return netInterface.Name, nil
 		}

route/router.go

@@ -12,12 +12,12 @@ import (
 
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/common/dialer"
-	"github.com/sagernet/sing-box/common/dialer/conntrack"
 	"github.com/sagernet/sing-box/common/geoip"
 	"github.com/sagernet/sing-box/common/geosite"
 	"github.com/sagernet/sing-box/common/mux"
 	"github.com/sagernet/sing-box/common/process"
 	"github.com/sagernet/sing-box/common/sniff"
+	"github.com/sagernet/sing-box/common/warning"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/experimental/libbox/platform"
 	"github.com/sagernet/sing-box/log"
@@ -31,7 +31,6 @@ import (
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/buf"
 	"github.com/sagernet/sing/common/bufio"
-	"github.com/sagernet/sing/common/bufio/deadline"
 	"github.com/sagernet/sing/common/control"
 	E "github.com/sagernet/sing/common/exceptions"
 	F "github.com/sagernet/sing/common/format"
@@ -40,6 +39,27 @@ import (
 	"github.com/sagernet/sing/common/uot"
 )
 
+var warnDefaultInterfaceOnUnsupportedPlatform = warning.New(
+	func() bool {
+		return !(C.IsLinux || C.IsWindows || C.IsDarwin)
+	},
+	"route option `default_mark` is only supported on Linux and Windows",
+)
+
+var warnDefaultMarkOnNonLinux = warning.New(
+	func() bool {
+		return !C.IsLinux
+	},
+	"route option `default_mark` is only supported on Linux",
+)
+
+var warnFindProcessOnUnsupportedPlatform = warning.New(
+	func() bool {
+		return !(C.IsLinux || C.IsWindows || C.IsDarwin)
+	},
+	"route option `find_process` is only supported on Linux, Windows, and macOS",
+)
+
 var _ adapter.Router = (*Router)(nil)
 
 type Router struct {
@@ -93,6 +113,16 @@ func NewRouter(
 	inbounds []option.Inbound,
 	platformInterface platform.Interface,
 ) (*Router, error) {
+	if options.DefaultInterface != "" {
+		warnDefaultInterfaceOnUnsupportedPlatform.Check()
+	}
+	if options.DefaultMark != 0 {
+		warnDefaultMarkOnNonLinux.Check()
+	}
+	if options.FindProcess {
+		warnFindProcessOnUnsupportedPlatform.Check()
+	}
+
 	router := &Router{
 		ctx:                   ctx,
 		logger:                logFactory.NewLogger("router"),
@@ -259,36 +289,29 @@ func NewRouter(
 		router.fakeIPStore = fakeip.NewStore(router, inet4Range, inet6Range)
 	}
 
-	usePlatformDefaultInterfaceMonitor := platformInterface != nil && platformInterface.UsePlatformDefaultInterfaceMonitor()
-	needInterfaceMonitor := options.AutoDetectInterface || common.Any(inbounds, func(inbound option.Inbound) bool {
+	needInterfaceMonitor := platformInterface == nil && (options.AutoDetectInterface || common.Any(inbounds, func(inbound option.Inbound) bool {
 		return inbound.HTTPOptions.SetSystemProxy || inbound.MixedOptions.SetSystemProxy || inbound.TunOptions.AutoRoute
-	})
+	}))
 
 	if needInterfaceMonitor {
-		if !usePlatformDefaultInterfaceMonitor {
-			networkMonitor, err := tun.NewNetworkUpdateMonitor(router)
-			if err != os.ErrInvalid {
-				if err != nil {
-					return nil, err
-				}
-				router.networkMonitor = networkMonitor
-				networkMonitor.RegisterCallback(router.interfaceFinder.update)
-				interfaceMonitor, err := tun.NewDefaultInterfaceMonitor(router.networkMonitor, tun.DefaultInterfaceMonitorOptions{
-					OverrideAndroidVPN: options.OverrideAndroidVPN,
-				})
-				if err != nil {
-					return nil, E.New("auto_detect_interface unsupported on current platform")
-				}
-				interfaceMonitor.RegisterCallback(router.notifyNetworkUpdate)
-				router.interfaceMonitor = interfaceMonitor
-			}
-		} else {
-			interfaceMonitor := platformInterface.CreateDefaultInterfaceMonitor(router)
-			interfaceMonitor.RegisterCallback(router.notifyNetworkUpdate)
-			router.interfaceMonitor = interfaceMonitor
+		networkMonitor, err := tun.NewNetworkUpdateMonitor(router)
+		if err == nil {
+			router.networkMonitor = networkMonitor
+			networkMonitor.RegisterCallback(router.interfaceFinder.update)
 		}
 	}
 
+	if router.networkMonitor != nil && needInterfaceMonitor {
+		interfaceMonitor, err := tun.NewDefaultInterfaceMonitor(router.networkMonitor, tun.DefaultInterfaceMonitorOptions{
+			OverrideAndroidVPN: options.OverrideAndroidVPN,
+		})
+		if err != nil {
+			return nil, E.New("auto_detect_interface unsupported on current platform")
+		}
+		interfaceMonitor.RegisterCallback(router.notifyNetworkUpdate)
+		router.interfaceMonitor = interfaceMonitor
+	}
+
 	needFindProcess := hasRule(options.Rules, isProcessRule) || hasDNSRule(dnsOptions.Rules, isProcessDNSRule) || options.FindProcess
 	needPackageManager := C.IsAndroid && platformInterface == nil && (needFindProcess || common.Any(inbounds, func(inbound option.Inbound) bool {
 		return len(inbound.TunOptions.IncludePackage) > 0 || len(inbound.TunOptions.ExcludePackage) > 0
@@ -634,10 +657,6 @@ func (r *Router) RouteConnection(ctx context.Context, conn net.Conn, metadata ad
 		r.logger.DebugContext(ctx, "found fakeip domain: ", domain)
 	}
 
-	if deadline.NeedAdditionalReadDeadline(conn) {
-		conn = deadline.NewConn(conn)
-	}
-
 	if metadata.InboundOptions.SniffEnabled {
 		buffer := buf.NewPacket()
 		buffer.FullReset()
@@ -743,11 +762,6 @@ func (r *Router) RoutePacketConnection(ctx context.Context, conn N.PacketConn, m
 		r.logger.DebugContext(ctx, "found fakeip domain: ", domain)
 	}
 
-	// Currently we don't have deadline usages for UDP connections
-	/*if deadline.NeedAdditionalReadDeadline(conn) {
-		conn = deadline.NewPacketConn(bufio.NewNetPacketConn(conn))
-	}*/
-
 	if metadata.InboundOptions.SniffEnabled {
 		buffer := buf.NewPacket()
 		buffer.FullReset()
@@ -872,31 +886,12 @@ func (r *Router) InterfaceFinder() control.InterfaceFinder {
 	return &r.interfaceFinder
 }
 
-func (r *Router) UpdateInterfaces() error {
-	if r.platformInterface == nil || !r.platformInterface.UsePlatformInterfaceGetter() {
-		return r.interfaceFinder.update()
-	} else {
-		interfaces, err := r.platformInterface.Interfaces()
-		if err != nil {
-			return err
-		}
-		r.interfaceFinder.updateInterfaces(common.Map(interfaces, func(it platform.NetworkInterface) net.Interface {
-			return net.Interface{
-				Name:  it.Name,
-				Index: it.Index,
-				MTU:   it.MTU,
-			}
-		}))
-		return nil
-	}
-}
-
 func (r *Router) AutoDetectInterface() bool {
 	return r.autoDetectInterface
 }
 
 func (r *Router) AutoDetectInterfaceFunc() control.Func {
-	if r.platformInterface != nil && r.platformInterface.UsePlatformAutoDetectInterfaceControl() {
+	if r.platformInterface != nil {
 		return r.platformInterface.AutoDetectInterfaceControl()
 	} else {
 		return control.BindToInterfaceFunc(r.InterfaceFinder(), func(network string, address string) (interfaceName string, interfaceIndex int) {
@@ -975,7 +970,7 @@ func (r *Router) NewError(ctx context.Context, err error) {
 }
 
 func (r *Router) notifyNetworkUpdate(int) error {
-	if C.IsAndroid && r.platformInterface == nil {
+	if C.IsAndroid {
 		var vpnStatus string
 		if r.interfaceMonitor.AndroidVPNEnabled() {
 			vpnStatus = "enabled"
@@ -987,10 +982,6 @@ func (r *Router) notifyNetworkUpdate(int) error {
 		r.logger.Info("updated default interface ", r.interfaceMonitor.DefaultInterfaceName(netip.IPv4Unspecified()), ", index ", r.interfaceMonitor.DefaultInterfaceIndex(netip.IPv4Unspecified()))
 	}
 
-	if conntrack.Enabled {
-		conntrack.Close()
-	}
-
 	for _, outbound := range r.outbounds {
 		listener, isListener := outbound.(adapter.InterfaceUpdateListener)
 		if isListener {

route/router_geo_resources.go

@@ -18,7 +18,6 @@ import (
 	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	"github.com/sagernet/sing/common/rw"
-	"github.com/sagernet/sing/service/filemanager"
 )
 
 func (r *Router) GeoIPReader() *geoip.Reader {
@@ -52,7 +51,7 @@ func (r *Router) prepareGeoIPDatabase() error {
 			geoPath = foundPath
 		}
 	}
-	geoPath = filemanager.BasePath(r.ctx, geoPath)
+	geoPath = C.BasePath(geoPath)
 	if rw.FileExists(geoPath) {
 		geoReader, codes, err := geoip.Open(geoPath)
 		if err == nil {
@@ -96,7 +95,7 @@ func (r *Router) prepareGeositeDatabase() error {
 			geoPath = foundPath
 		}
 	}
-	geoPath = filemanager.BasePath(r.ctx, geoPath)
+	geoPath = C.BasePath(geoPath)
 	if !rw.FileExists(geoPath) {
 		r.logger.Warn("geosite database not exists: ", geoPath)
 		var err error
@@ -143,10 +142,10 @@ func (r *Router) downloadGeoIPDatabase(savePath string) error {
 	}
 
 	if parentDir := filepath.Dir(savePath); parentDir != "" {
-		filemanager.MkdirAll(r.ctx, parentDir, 0o755)
+		os.MkdirAll(parentDir, 0o755)
 	}
 
-	saveFile, err := filemanager.Create(r.ctx, savePath)
+	saveFile, err := os.OpenFile(savePath, os.O_CREATE|os.O_WRONLY, 0o644)
 	if err != nil {
 		return E.Cause(err, "open output file: ", downloadURL)
 	}
@@ -191,10 +190,10 @@ func (r *Router) downloadGeositeDatabase(savePath string) error {
 	}
 
 	if parentDir := filepath.Dir(savePath); parentDir != "" {
-		filemanager.MkdirAll(r.ctx, parentDir, 0o755)
+		os.MkdirAll(parentDir, 0o755)
 	}
 
-	saveFile, err := filemanager.Create(r.ctx, savePath)
+	saveFile, err := os.OpenFile(savePath, os.O_CREATE|os.O_WRONLY, 0o644)
 	if err != nil {
 		return E.Cause(err, "open output file: ", downloadURL)
 	}

route/rule_item_package_name.go

@@ -4,6 +4,13 @@ import (
 	"strings"
 
 	"github.com/sagernet/sing-box/adapter"
+	"github.com/sagernet/sing-box/common/warning"
+	C "github.com/sagernet/sing-box/constant"
+)
+
+var warnPackageNameOnNonAndroid = warning.New(
+	func() bool { return !C.IsAndroid },
+	"rule item `package_name` is only supported on Android",
 )
 
 var _ RuleItem = (*PackageNameItem)(nil)
@@ -14,6 +21,7 @@ type PackageNameItem struct {
 }
 
 func NewPackageNameItem(packageNameList []string) *PackageNameItem {
+	warnPackageNameOnNonAndroid.Check()
 	rule := &PackageNameItem{
 		packageNames: packageNameList,
 		packageMap:   make(map[string]bool),

route/rule_item_process_name.go

@@ -5,6 +5,13 @@ import (
 	"strings"
 
 	"github.com/sagernet/sing-box/adapter"
+	"github.com/sagernet/sing-box/common/warning"
+	C "github.com/sagernet/sing-box/constant"
+)
+
+var warnProcessNameOnNonSupportedPlatform = warning.New(
+	func() bool { return !(C.IsLinux || C.IsWindows || C.IsDarwin) },
+	"rule item `process_name` is only supported on Linux, Windows and macOS",
 )
 
 var _ RuleItem = (*ProcessItem)(nil)
@@ -15,6 +22,7 @@ type ProcessItem struct {
 }
 
 func NewProcessItem(processNameList []string) *ProcessItem {
+	warnProcessNameOnNonSupportedPlatform.Check()
 	rule := &ProcessItem{
 		processes:  processNameList,
 		processMap: make(map[string]bool),

route/rule_item_process_path.go

@@ -4,6 +4,13 @@ import (
 	"strings"
 
 	"github.com/sagernet/sing-box/adapter"
+	"github.com/sagernet/sing-box/common/warning"
+	C "github.com/sagernet/sing-box/constant"
+)
+
+var warnProcessPathOnNonSupportedPlatform = warning.New(
+	func() bool { return !(C.IsLinux || C.IsWindows || C.IsDarwin) },
+	"rule item `process_path` is only supported on Linux, Windows and macOS",
 )
 
 var _ RuleItem = (*ProcessPathItem)(nil)
@@ -14,6 +21,7 @@ type ProcessPathItem struct {
 }
 
 func NewProcessPathItem(processNameList []string) *ProcessPathItem {
+	warnProcessPathOnNonSupportedPlatform.Check()
 	rule := &ProcessPathItem{
 		processes:  processNameList,
 		processMap: make(map[string]bool),

route/rule_item_user.go

@@ -4,9 +4,16 @@ import (
 	"strings"
 
 	"github.com/sagernet/sing-box/adapter"
+	"github.com/sagernet/sing-box/common/warning"
+	C "github.com/sagernet/sing-box/constant"
 	F "github.com/sagernet/sing/common/format"
 )
 
+var warnUserOnNonLinux = warning.New(
+	func() bool { return !C.IsLinux },
+	"rule item `user` is only supported on Linux",
+)
+
 var _ RuleItem = (*UserItem)(nil)
 
 type UserItem struct {
@@ -15,6 +22,7 @@ type UserItem struct {
 }
 
 func NewUserItem(users []string) *UserItem {
+	warnUserOnNonLinux.Check()
 	userMap := make(map[string]bool)
 	for _, protocol := range users {
 		userMap[protocol] = true

route/rule_item_user_id.go

@@ -4,9 +4,16 @@ import (
 	"strings"
 
 	"github.com/sagernet/sing-box/adapter"
+	"github.com/sagernet/sing-box/common/warning"
+	C "github.com/sagernet/sing-box/constant"
 	F "github.com/sagernet/sing/common/format"
 )
 
+var warnUserIDOnNonLinux = warning.New(
+	func() bool { return !C.IsLinux },
+	"rule item `user_id` is only supported on Linux",
+)
+
 var _ RuleItem = (*UserIdItem)(nil)
 
 type UserIdItem struct {
@@ -15,6 +22,7 @@ type UserIdItem struct {
 }
 
 func NewUserIDItem(userIdList []int32) *UserIdItem {
+	warnUserIDOnNonLinux.Check()
 	rule := &UserIdItem{
 		userIds:   userIdList,
 		userIdMap: make(map[int32]bool),

test/go.mod

@@ -7,21 +7,21 @@ require github.com/sagernet/sing-box v0.0.0
 replace github.com/sagernet/sing-box => ../
 
 require (
-	github.com/docker/docker v20.10.18+incompatible
+	github.com/docker/docker v23.0.3+incompatible
 	github.com/docker/go-connections v0.4.0
 	github.com/gofrs/uuid/v5 v5.0.0
-	github.com/sagernet/sing v0.2.4
-	github.com/sagernet/sing-shadowsocks v0.2.2-0.20230417102954-f77257340507
-	github.com/spyzhov/ajson v0.7.1
+	github.com/sagernet/sing v0.2.2
+	github.com/sagernet/sing-shadowsocks v0.2.1-0.20230408141421-e40d6a4e42d4
+	github.com/spyzhov/ajson v0.8.0
 	github.com/stretchr/testify v1.8.2
-	go.uber.org/goleak v1.2.0
+	go.uber.org/goleak v1.2.1
 	golang.org/x/net v0.9.0
 )
 
 require (
 	berty.tech/go-libtor v1.0.385 // indirect
-	github.com/Dreamacro/clash v1.15.0 // indirect
-	github.com/Microsoft/go-winio v0.6.0 // indirect
+	github.com/Dreamacro/clash v1.14.0 // indirect
+	github.com/Microsoft/go-winio v0.5.1 // indirect
 	github.com/ajg/form v1.5.1 // indirect
 	github.com/andybalholm/brotli v1.0.5 // indirect
 	github.com/caddyserver/certmagic v0.17.2 // indirect
@@ -50,7 +50,7 @@ require (
 	github.com/logrusorgru/aurora v2.0.3+incompatible // indirect
 	github.com/mholt/acmez v1.1.0 // indirect
 	github.com/miekg/dns v1.1.53 // indirect
-	github.com/moby/term v0.0.0-20221205130635-1aeaba878587 // indirect
+	github.com/moby/term v0.0.0-20221105221325-4eb28fa6025c // indirect
 	github.com/morikuni/aec v1.0.0 // indirect
 	github.com/onsi/ginkgo/v2 v2.2.0 // indirect
 	github.com/ooni/go-libtor v1.1.7 // indirect
@@ -70,16 +70,15 @@ require (
 	github.com/sagernet/netlink v0.0.0-20220905062125-8043b4a9aa97 // indirect
 	github.com/sagernet/quic-go v0.0.0-20230202071646-a8c8afb18b32 // indirect
 	github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691 // indirect
-	github.com/sagernet/sing-dns v0.1.5-0.20230415085626-111ecf799dfc // indirect
-	github.com/sagernet/sing-shadowtls v0.1.2-0.20230417103049-4f682e05f19b // indirect
-	github.com/sagernet/sing-tun v0.1.5-0.20230422121432-209ec123ca7b // indirect
-	github.com/sagernet/sing-vmess v0.1.5-0.20230417103030-8c3070ae3fb3 // indirect
+	github.com/sagernet/sing-dns v0.1.5-0.20230408004833-5adaf486d440 // indirect
+	github.com/sagernet/sing-shadowtls v0.1.1-0.20230408141548-81d74d2a8661 // indirect
+	github.com/sagernet/sing-tun v0.1.4-0.20230326080954-8848c0e4cbab // indirect
+	github.com/sagernet/sing-vmess v0.1.4-0.20230409073451-6921c3dd77c7 // indirect
 	github.com/sagernet/smux v0.0.0-20230312102458-337ec2a5af37 // indirect
 	github.com/sagernet/tfo-go v0.0.0-20230303015439-ffcfd8c41cf9 // indirect
 	github.com/sagernet/utls v0.0.0-20230309024959-6732c2ab36f2 // indirect
 	github.com/sagernet/websocket v0.0.0-20220913015213-615516348b4e // indirect
-	github.com/sagernet/wireguard-go v0.0.0-20230420044414-a7bac1754e77 // indirect
-	github.com/sirupsen/logrus v1.9.0 // indirect
+	github.com/sagernet/wireguard-go v0.0.0-20221116151939-c99467f53f2c // indirect
 	github.com/u-root/uio v0.0.0-20230220225925-ffce2a382923 // indirect
 	github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74 // indirect
 	go.etcd.io/bbolt v1.3.7 // indirect
@@ -92,12 +91,15 @@ require (
 	golang.org/x/mod v0.8.0 // indirect
 	golang.org/x/sys v0.7.0 // indirect
 	golang.org/x/text v0.9.0 // indirect
-	golang.org/x/time v0.0.0-20220210224613-90d013bbcef8 // indirect
+	golang.org/x/time v0.0.0-20191024005414-555d28b269f0 // indirect
 	golang.org/x/tools v0.6.0 // indirect
 	google.golang.org/genproto v0.0.0-20230110181048-76db0878b65f // indirect
 	google.golang.org/grpc v1.54.0 // indirect
 	google.golang.org/protobuf v1.30.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
-	gvisor.dev/gvisor v0.0.0-20230415003630-3981d5d5e523 // indirect
+	gotest.tools/v3 v3.4.0 // indirect
+	gvisor.dev/gvisor v0.0.0-20220901235040-6ca97ef2ce1c // indirect
 	lukechampine.com/blake3 v1.1.7 // indirect
 )
+
+//replace github.com/sagernet/sing => ../../sing

test/go.sum

@@ -1,10 +1,10 @@
 berty.tech/go-libtor v1.0.385 h1:RWK94C3hZj6Z2GdvePpHJLnWYobFr3bY/OdUJ5aoEXw=
 berty.tech/go-libtor v1.0.385/go.mod h1:9swOOQVb+kmvuAlsgWUK/4c52pm69AdbJsxLzk+fJEw=
 github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 h1:UQHMgLO+TxOElx5B5HZ4hJQsoJ/PvUvKRhJHDQXO8P8=
-github.com/Dreamacro/clash v1.15.0 h1:mlpD950VEggXZBNahV66hyKDRxcczkj3vymoAt78KyE=
-github.com/Dreamacro/clash v1.15.0/go.mod h1:WNH69bN11LiAdgdSr4hpkEuXVMfBbWyhEKMCTx9BtNE=
-github.com/Microsoft/go-winio v0.6.0 h1:slsWYD/zyx7lCXoZVlvQrj0hPTM1HI4+v1sIda2yDvg=
-github.com/Microsoft/go-winio v0.6.0/go.mod h1:cTAf44im0RAYeL23bpB+fzCyDH2MJiz2BO69KH/soAE=
+github.com/Dreamacro/clash v1.14.0 h1:ehJ/C/1m9LEjmME72WSE/Y2YqbR3Q54AbjqiRCvtyW4=
+github.com/Dreamacro/clash v1.14.0/go.mod h1:ia2CU7V713H1QdCqMwOLK9U9V5Ay8X0voj3yQr2tk+I=
+github.com/Microsoft/go-winio v0.5.1 h1:aPJp2QD7OOrhO5tQXqQoGSJc+DjDtWTGLOmNyAm6FgY=
+github.com/Microsoft/go-winio v0.5.1/go.mod h1:JPGBdM1cNvN/6ISo+n8V5iA4v8pBzdOpzfwIujj1a84=
 github.com/ajg/form v1.5.1 h1:t9c7v8JUKu/XxOGBU0yjNpaMloxGEJhUkqFRq0ibGeU=
 github.com/ajg/form v1.5.1/go.mod h1:uL1WgH+h2mgNtvBq0339dVnzXdBETtL2LeUXaIv25UY=
 github.com/andybalholm/brotli v1.0.5 h1:8uQZIdzKmjc/iuPu7O2ioW48L81FgatrcpfFmiq/cCs=
@@ -25,8 +25,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
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-github.com/docker/docker v20.10.18+incompatible h1:SN84VYXTBNGn92T/QwIRPlum9zfemfitN7pbsp26WSc=
-github.com/docker/docker v20.10.18+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
+github.com/docker/docker v23.0.3+incompatible h1:9GhVsShNWz1hO//9BNg/dpMnZW25KydO4wtVxWAIbho=
+github.com/docker/docker v23.0.3+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
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@@ -82,8 +82,8 @@ github.com/mholt/acmez v1.1.0 h1:IQ9CGHKOHokorxnffsqDvmmE30mDenO1lptYZ1AYkHY=
 github.com/mholt/acmez v1.1.0/go.mod h1:zwo5+fbLLTowAX8o8ETfQzbDtwGEXnPhkmGdKIP+bgs=
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+github.com/moby/term v0.0.0-20221105221325-4eb28fa6025c/go.mod h1:9OcmHNQQUTbk4XCffrLgN1NEKc2mh5u++biHVrvHsSU=
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@@ -126,18 +126,18 @@ github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691 h1:5Th31OC6yj8byL
 github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691/go.mod h1:B8lp4WkQ1PwNnrVMM6KyuFR20pU8jYBD+A4EhJovEXU=
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-github.com/sagernet/sing v0.2.4 h1:gC8BR5sglbJZX23RtMyFa8EETP9YEUADhfbEzU1yVbo=
-github.com/sagernet/sing v0.2.4/go.mod h1:Ta8nHnDLAwqySzKhGoKk4ZIB+vJ3GTKj7UPrWYvM+4w=
-github.com/sagernet/sing-dns v0.1.5-0.20230415085626-111ecf799dfc h1:hmbuqKv48SAjiKPoqtJGvS5pEHVPZjTHq9CPwQY2cZ4=
-github.com/sagernet/sing-dns v0.1.5-0.20230415085626-111ecf799dfc/go.mod h1:ZKuuqgsHRxDahYrzgSgy4vIAGGuKPlIf4hLcNzYzLkY=
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@@ -146,15 +146,15 @@ github.com/sagernet/utls v0.0.0-20230309024959-6732c2ab36f2 h1:kDUqhc9Vsk5HJuhfI
 github.com/sagernet/utls v0.0.0-20230309024959-6732c2ab36f2/go.mod h1:JKQMZq/O2qnZjdrt+B57olmfgEmLtY9iiSIEYtWvoSM=
 github.com/sagernet/websocket v0.0.0-20220913015213-615516348b4e h1:7uw2njHFGE+VpWamge6o56j2RWk4omF6uLKKxMmcWvs=
 github.com/sagernet/websocket v0.0.0-20220913015213-615516348b4e/go.mod h1:45TUl8+gH4SIKr4ykREbxKWTxkDlSzFENzctB1dVRRY=
-github.com/sagernet/wireguard-go v0.0.0-20230420044414-a7bac1754e77 h1:g6QtRWQ2dKX7EQP++1JLNtw4C2TNxd4/ov8YUpOPOSo=
-github.com/sagernet/wireguard-go v0.0.0-20230420044414-a7bac1754e77/go.mod h1:pJDdXzZIwJ+2vmnT0TKzmf8meeum+e2mTDSehw79eE0=
-github.com/sirupsen/logrus v1.9.0 h1:trlNQbNUG3OdDrDil03MCb1H2o9nJ1x4/5LYw7byDE0=
-github.com/sirupsen/logrus v1.9.0/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
-github.com/spyzhov/ajson v0.7.1 h1:1MDIlPc6x0zjNtpa7tDzRAyFAvRX+X8ZsvtYz5lZg6A=
-github.com/spyzhov/ajson v0.7.1/go.mod h1:63V+CGM6f1Bu/p4nLIN8885ojBdt88TbLoSFzyqMuVA=
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 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
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@@ -174,8 +174,8 @@ go.etcd.io/bbolt v1.3.7/go.mod h1:N9Mkw9X8x5fupy0IKsmuqVtoGDyxsaDlbk4Rd05IAQw=
 go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/atomic v1.10.0 h1:9qC72Qh0+3MqyJbAn8YU5xVq1frD8bn3JtD2oXtafVQ=
 go.uber.org/atomic v1.10.0/go.mod h1:LUxbIzbOniOlMKjJjyPfpl4v+PKK2cNJn91OQbhoJI0=
-go.uber.org/goleak v1.2.0 h1:xqgm/S+aQvhWFTtR0XK3Jvg7z8kGV8P4X14IzwN3Eqk=
-go.uber.org/goleak v1.2.0/go.mod h1:XJYK+MuIchqpmGmUSAzotztawfKvYLUIgg7guXrwVUo=
+go.uber.org/goleak v1.2.1 h1:NBol2c7O1ZokfZ0LEU9K6Whx/KnwvepVetCUhtKja4A=
+go.uber.org/goleak v1.2.1/go.mod h1:qlT2yGI9QafXHhZZLxlSuNsMw3FFLxBr+tBRlmO1xH4=
 go.uber.org/multierr v1.6.0 h1:y6IPFStTAIT5Ytl7/XYmHvzXQ7S3g/IeZW9hyZ5thw4=
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 go.uber.org/zap v1.24.0 h1:FiJd5l1UOLj0wCgbSE0rwwXHzEdAZS6hiiSnxJN/D60=
@@ -191,7 +191,6 @@ golang.org/x/crypto v0.8.0 h1:pd9TJtTueMTVQXzk8E2XESSMQDj/U7OUu0PqJqPXQjQ=
 golang.org/x/crypto v0.8.0/go.mod h1:mRqEX+O9/h5TFCrQhkgjo2yKi0yYA+9ecGkdQoHrywE=
 golang.org/x/exp v0.0.0-20230321023759-10a507213a29 h1:ooxPy7fPvB4kwsA2h+iBNHkAbp/4JxTSwCmvdjEYmug=
 golang.org/x/exp v0.0.0-20230321023759-10a507213a29/go.mod h1:CxIveKay+FTh1D0yPZemJVgC/95VzuuOLq5Qi4xnoYc=
-golang.org/x/lint v0.0.0-20190930215403-16217165b5de h1:5hukYrvBGR8/eNkX5mdUezrA6JiaEZDtJb9Ei+1LlBs=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
@@ -214,16 +213,18 @@ golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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@@ -236,12 +237,13 @@ golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
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-golang.org/x/time v0.0.0-20220210224613-90d013bbcef8 h1:vVKdlvoWBphwdxWKrFZEuM0kGgGLxUOYcY4U/2Vjg44=
-golang.org/x/time v0.0.0-20220210224613-90d013bbcef8/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
+golang.org/x/time v0.0.0-20191024005414-555d28b269f0 h1:/5xXl8Y5W96D+TtHSlonuFqGHIWVuyCkGJLwGh9JJFs=
+golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
+golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
 golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.6.0 h1:BOw41kyTf3PuCW1pVQf8+Cyg8pMlkYB1oo9iJ6D/lKM=
 golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
@@ -264,7 +266,8 @@ gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gotest.tools/v3 v3.4.0 h1:ZazjZUfuVeZGLAmlKKuyv3IKP5orXcwtOwDQH6YVr6o=
-gvisor.dev/gvisor v0.0.0-20230415003630-3981d5d5e523 h1:zUQYeyyPLnSR6yMvLSOmLH37xDWCZ7BqlpE69fE5K3Q=
-gvisor.dev/gvisor v0.0.0-20230415003630-3981d5d5e523/go.mod h1:pzr6sy8gDLfVmDAg8OYrlKvGEHw5C3PGTiBXBTCx76Q=
+gotest.tools/v3 v3.4.0/go.mod h1:CtbdzLSsqVhDgMtKsx03ird5YTGB3ar27v0u/yKBW5g=
+gvisor.dev/gvisor v0.0.0-20220901235040-6ca97ef2ce1c h1:m5lcgWnL3OElQNVyp3qcncItJ2c0sQlSGjYK2+nJTA4=
+gvisor.dev/gvisor v0.0.0-20220901235040-6ca97ef2ce1c/go.mod h1:TIvkJD0sxe8pIob3p6T8IzxXunlp6yfgktvTNp+DGNM=
 lukechampine.com/blake3 v1.1.7 h1:GgRMhmdsuK8+ii6UZFDL8Nb+VyMwadAgcJyfYHxG6n0=
 lukechampine.com/blake3 v1.1.7/go.mod h1:tkKEOtDkNtklkXtLNEOGNq5tcV90tJiA1vAA12R78LA=

test/mux_test.go

@@ -18,40 +18,18 @@ var muxProtocols = []mux.Protocol{
 }
 
 func TestVMessSMux(t *testing.T) {
-	testVMessMux(t, option.MultiplexOptions{
-		Enabled:  true,
-		Protocol: mux.ProtocolSMux.String(),
-	})
+	testVMessMux(t, mux.ProtocolSMux.String())
 }
 
 func TestShadowsocksMux(t *testing.T) {
 	for _, protocol := range muxProtocols {
 		t.Run(protocol.String(), func(t *testing.T) {
-			testShadowsocksMux(t, option.MultiplexOptions{
-				Enabled:  true,
-				Protocol: protocol.String(),
-			})
+			testShadowsocksMux(t, protocol.String())
 		})
 	}
 }
 
-func TestShadowsockH2Mux(t *testing.T) {
-	testShadowsocksMux(t, option.MultiplexOptions{
-		Enabled:  true,
-		Protocol: mux.ProtocolH2Mux.String(),
-		Padding:  true,
-	})
-}
-
-func TestShadowsockSMuxPadding(t *testing.T) {
-	testShadowsocksMux(t, option.MultiplexOptions{
-		Enabled:  true,
-		Protocol: mux.ProtocolSMux.String(),
-		Padding:  true,
-	})
-}
-
-func testShadowsocksMux(t *testing.T, options option.MultiplexOptions) {
+func testShadowsocksMux(t *testing.T, protocol string) {
 	method := shadowaead_2022.List[0]
 	password := mkBase64(t, 16)
 	startInstance(t, option.Options{
@@ -90,9 +68,12 @@ func testShadowsocksMux(t *testing.T, options option.MultiplexOptions) {
 						Server:     "127.0.0.1",
 						ServerPort: serverPort,
 					},
-					Method:           method,
-					Password:         password,
-					MultiplexOptions: &options,
+					Method:   method,
+					Password: password,
+					MultiplexOptions: &option.MultiplexOptions{
+						Enabled:  true,
+						Protocol: protocol,
+					},
 				},
 			},
 		},
@@ -110,7 +91,7 @@ func testShadowsocksMux(t *testing.T, options option.MultiplexOptions) {
 	testSuit(t, clientPort, testPort)
 }
 
-func testVMessMux(t *testing.T, options option.MultiplexOptions) {
+func testVMessMux(t *testing.T, protocol string) {
 	user, _ := uuid.NewV4()
 	startInstance(t, option.Options{
 		Inbounds: []option.Inbound{
@@ -151,9 +132,12 @@ func testVMessMux(t *testing.T, options option.MultiplexOptions) {
 						Server:     "127.0.0.1",
 						ServerPort: serverPort,
 					},
-					Security:  "auto",
-					UUID:      user.String(),
-					Multiplex: &options,
+					Security: "auto",
+					UUID:     user.String(),
+					Multiplex: &option.MultiplexOptions{
+						Enabled:  true,
+						Protocol: protocol,
+					},
 				},
 			},
 		},

test/reality_test.go

@@ -141,95 +141,6 @@ func TestVLESSVisionReality(t *testing.T) {
 	testSuit(t, clientPort, testPort)
 }
 
-func TestVLESSVisionRealityPlain(t *testing.T) {
-	userUUID := newUUID()
-	startInstance(t, option.Options{
-		Inbounds: []option.Inbound{
-			{
-				Type: C.TypeMixed,
-				Tag:  "mixed-in",
-				MixedOptions: option.HTTPMixedInboundOptions{
-					ListenOptions: option.ListenOptions{
-						Listen:     option.NewListenAddress(netip.IPv4Unspecified()),
-						ListenPort: clientPort,
-					},
-				},
-			},
-			{
-				Type: C.TypeVLESS,
-				VLESSOptions: option.VLESSInboundOptions{
-					ListenOptions: option.ListenOptions{
-						Listen:     option.NewListenAddress(netip.IPv4Unspecified()),
-						ListenPort: serverPort,
-					},
-					Users: []option.VLESSUser{
-						{
-							Name: "sekai",
-							UUID: userUUID.String(),
-							Flow: vless.FlowVision,
-						},
-					},
-					TLS: &option.InboundTLSOptions{
-						Enabled:    true,
-						ServerName: "google.com",
-						Reality: &option.InboundRealityOptions{
-							Enabled: true,
-							Handshake: option.InboundRealityHandshakeOptions{
-								ServerOptions: option.ServerOptions{
-									Server:     "google.com",
-									ServerPort: 443,
-								},
-							},
-							ShortID:    []string{"0123456789abcdef"},
-							PrivateKey: "UuMBgl7MXTPx9inmQp2UC7Jcnwc6XYbwDNebonM-FCc",
-						},
-					},
-				},
-			},
-		},
-		Outbounds: []option.Outbound{
-			{
-				Type: C.TypeDirect,
-			},
-			{
-				Type: C.TypeVLESS,
-				Tag:  "vless-out",
-				VLESSOptions: option.VLESSOutboundOptions{
-					ServerOptions: option.ServerOptions{
-						Server:     "127.0.0.1",
-						ServerPort: serverPort,
-					},
-					UUID: userUUID.String(),
-					Flow: vless.FlowVision,
-					TLS: &option.OutboundTLSOptions{
-						Enabled:    true,
-						ServerName: "google.com",
-						Reality: &option.OutboundRealityOptions{
-							Enabled:   true,
-							ShortID:   "0123456789abcdef",
-							PublicKey: "jNXHt1yRo0vDuchQlIP6Z0ZvjT3KtzVI-T4E7RoLJS0",
-						},
-						UTLS: &option.OutboundUTLSOptions{
-							Enabled: true,
-						},
-					},
-				},
-			},
-		},
-		Route: &option.RouteOptions{
-			Rules: []option.Rule{
-				{
-					DefaultOptions: option.DefaultRule{
-						Inbound:  []string{"mixed-in"},
-						Outbound: "vless-out",
-					},
-				},
-			},
-		},
-	})
-	testSuit(t, clientPort, testPort)
-}
-
 func TestVLESSRealityTransport(t *testing.T) {
 	t.Run("grpc", func(t *testing.T) {
 		testVLESSRealityTransport(t, &option.V2RayTransportOptions{
@@ -249,6 +160,8 @@ func TestVLESSRealityTransport(t *testing.T) {
 }
 
 func testVLESSRealityTransport(t *testing.T, transport *option.V2RayTransportOptions) {
+	_, certPem, keyPem := createSelfSignedCertificate(t, "example.org")
+
 	userUUID := newUUID()
 	startInstance(t, option.Options{
 		Inbounds: []option.Inbound{
@@ -293,11 +206,52 @@ func testVLESSRealityTransport(t *testing.T, transport *option.V2RayTransportOpt
 					Transport: transport,
 				},
 			},
+			{
+				Type: C.TypeTrojan,
+				Tag:  "trojan",
+				TrojanOptions: option.TrojanInboundOptions{
+					ListenOptions: option.ListenOptions{
+						Listen:     option.NewListenAddress(netip.IPv4Unspecified()),
+						ListenPort: otherPort,
+					},
+					Users: []option.TrojanUser{
+						{
+							Name:     "sekai",
+							Password: userUUID.String(),
+						},
+					},
+					TLS: &option.InboundTLSOptions{
+						Enabled:         true,
+						ServerName:      "example.org",
+						CertificatePath: certPem,
+						KeyPath:         keyPem,
+					},
+				},
+			},
 		},
 		Outbounds: []option.Outbound{
 			{
 				Type: C.TypeDirect,
 			},
+			{
+				Type: C.TypeTrojan,
+				Tag:  "trojan-out",
+				TrojanOptions: option.TrojanOutboundOptions{
+					ServerOptions: option.ServerOptions{
+						Server:     "127.0.0.1",
+						ServerPort: otherPort,
+					},
+					Password: userUUID.String(),
+					TLS: &option.OutboundTLSOptions{
+						Enabled:         true,
+						ServerName:      "example.org",
+						CertificatePath: certPem,
+					},
+					DialerOptions: option.DialerOptions{
+						Detour: "vless-out",
+					},
+				},
+			},
 			{
 				Type: C.TypeVLESS,
 				Tag:  "vless-out",
@@ -328,7 +282,7 @@ func testVLESSRealityTransport(t *testing.T, transport *option.V2RayTransportOpt
 				{
 					DefaultOptions: option.DefaultRule{
 						Inbound:  []string{"mixed-in"},
-						Outbound: "vless-out",
+						Outbound: "trojan-out",
 					},
 				},
 			},

test/udpnat_test.go

@@ -1,59 +0,0 @@
-package main
-
-import (
-	"context"
-	"net"
-	"testing"
-	"time"
-
-	"github.com/sagernet/sing/common"
-	"github.com/sagernet/sing/common/buf"
-	E "github.com/sagernet/sing/common/exceptions"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-	"github.com/sagernet/sing/common/udpnat"
-)
-
-func TestUDPNatClose(t *testing.T) {
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-	connCtx, connCancel := common.ContextWithCancelCause(context.Background())
-	defer connCancel(net.ErrClosed)
-	service := udpnat.New[int](1, &testUDPNatCloseHandler{connCancel})
-	service.NewPacket(ctx, 0, buf.As([]byte("Hello")), M.Metadata{}, func(natConn N.PacketConn) N.PacketWriter {
-		return &testPacketWriter{}
-	})
-	select {
-	case <-connCtx.Done():
-		if E.IsClosed(connCtx.Err()) {
-			t.Fatal(E.New("conn closed unexpectedly: ", connCtx.Err()))
-		}
-	case <-time.After(2 * time.Second):
-		t.Fatal("conn not closed")
-	}
-}
-
-type testUDPNatCloseHandler struct {
-	done common.ContextCancelCauseFunc
-}
-
-func (h *testUDPNatCloseHandler) NewPacketConnection(ctx context.Context, conn N.PacketConn, metadata M.Metadata) error {
-	for {
-		buffer := buf.NewPacket()
-		_, err := conn.ReadPacket(buffer)
-		buffer.Release()
-		if err != nil {
-			h.done(err)
-			return err
-		}
-	}
-}
-
-func (h *testUDPNatCloseHandler) NewError(ctx context.Context, err error) {
-}
-
-type testPacketWriter struct{}
-
-func (t *testPacketWriter) WritePacket(buffer *buf.Buffer, destination M.Socksaddr) error {
-	return nil
-}

transport/dhcp/server.go

@@ -119,7 +119,7 @@ func (t *Transport) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg,
 func (t *Transport) fetchInterface() (*net.Interface, error) {
 	interfaceName := t.interfaceName
 	if t.autoInterface {
-		if t.router.InterfaceMonitor() == nil {
+		if t.router.NetworkMonitor() == nil {
 			return nil, E.New("missing monitor for auto DHCP, set route.auto_detect_interface")
 		}
 		interfaceName = t.router.InterfaceMonitor().DefaultInterfaceName(netip.Addr{})

transport/hysteria/protocol.go

@@ -535,10 +535,6 @@ func (c *PacketConn) SetWriteDeadline(t time.Time) error {
 	return os.ErrInvalid
 }
 
-func (c *PacketConn) NeedAdditionalReadDeadline() bool {
-	return true
-}
-
 func (c *PacketConn) Read(b []byte) (n int, err error) {
 	return 0, os.ErrInvalid
 }

transport/simple-obfs/tls.go

@@ -32,10 +32,10 @@ type TLSObfs struct {
 func (to *TLSObfs) read(b []byte, discardN int) (int, error) {
 	buf := B.Get(discardN)
 	_, err := io.ReadFull(to.Conn, buf)
-	B.Put(buf)
 	if err != nil {
 		return 0, err
 	}
+	B.Put(buf)
 
 	sizeBuf := make([]byte, 2)
 	_, err = io.ReadFull(to.Conn, sizeBuf)

transport/sip003/v2ray.go

@@ -45,7 +45,6 @@ func newV2RayPlugin(pluginOpts Args, router adapter.Router, dialer N.Dialer, ser
 
 	if hostOpt, loaded := pluginOpts.Get("host"); loaded {
 		host = hostOpt
-		tlsOptions.ServerName = hostOpt
 	}
 	if pathOpt, loaded := pluginOpts.Get("path"); loaded {
 		path = pathOpt

transport/trojan/mux.go

@@ -4,6 +4,8 @@ import (
 	"context"
 	"net"
 
+	"github.com/sagernet/sing/common/bufio"
+	"github.com/sagernet/sing/common/bufio/deadline"
 	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	"github.com/sagernet/sing/common/rw"
@@ -53,7 +55,7 @@ func newMuxConnection0(ctx context.Context, stream net.Conn, metadata M.Metadata
 	case CommandTCP:
 		return handler.NewConnection(ctx, stream, metadata)
 	case CommandUDP:
-		return handler.NewPacketConnection(ctx, &PacketConn{stream}, metadata)
+		return handler.NewPacketConnection(ctx, deadline.NewPacketConn(bufio.NewNetPacketConn(&PacketConn{stream})), metadata)
 	default:
 		return E.New("unknown command ", command)
 	}

transport/trojan/service.go

@@ -8,6 +8,7 @@ import (
 	"github.com/sagernet/sing/common/auth"
 	"github.com/sagernet/sing/common/buf"
 	"github.com/sagernet/sing/common/bufio"
+	"github.com/sagernet/sing/common/bufio/deadline"
 	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
@@ -106,7 +107,7 @@ func (s *Service[K]) NewConnection(ctx context.Context, conn net.Conn, metadata
 	case CommandTCP:
 		return s.handler.NewConnection(ctx, conn, metadata)
 	case CommandUDP:
-		return s.handler.NewPacketConnection(ctx, &PacketConn{conn}, metadata)
+		return s.handler.NewPacketConnection(ctx, deadline.NewPacketConn(bufio.NewNetPacketConn(&PacketConn{conn})), metadata)
 	// case CommandMux:
 	default:
 		return HandleMuxConnection(ctx, conn, metadata, s.handler)
@@ -136,11 +137,3 @@ func (c *PacketConn) WritePacket(buffer *buf.Buffer, destination M.Socksaddr) er
 func (c *PacketConn) FrontHeadroom() int {
 	return M.MaxSocksaddrLength + 4
 }
-
-func (c *PacketConn) NeedAdditionalReadDeadline() bool {
-	return true
-}
-
-func (c *PacketConn) Upstream() any {
-	return c.Conn
-}

transport/v2raygrpc/client.go

@@ -10,6 +10,7 @@ import (
 	"github.com/sagernet/sing-box/common/tls"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing/common"
+	"github.com/sagernet/sing/common/bufio/deadline"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
 
@@ -109,5 +110,5 @@ func (c *Client) DialContext(ctx context.Context) (net.Conn, error) {
 		cancel(err)
 		return nil, err
 	}
-	return NewGRPCConn(stream, cancel), nil
+	return deadline.NewConn(NewGRPCConn(stream, cancel)), nil
 }

transport/v2raygrpc/conn.go

@@ -81,10 +81,6 @@ func (c *GRPCConn) SetWriteDeadline(t time.Time) error {
 	return os.ErrInvalid
 }
 
-func (c *GRPCConn) NeedAdditionalReadDeadline() bool {
-	return true
-}
-
 func (c *GRPCConn) Upstream() any {
 	return c.GunService
 }

transport/v2raygrpc/server.go

@@ -11,6 +11,7 @@ import (
 	"github.com/sagernet/sing-box/common/tls"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing/common"
+	"github.com/sagernet/sing/common/bufio/deadline"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
 
@@ -66,7 +67,7 @@ func (s *Server) Tun(server GunService_TunServer) error {
 			}
 		}
 	}
-	go s.handler.NewConnection(ctx, conn, metadata)
+	go s.handler.NewConnection(ctx, deadline.NewConn(conn), metadata)
 	<-ctx.Done()
 	return nil
 }

transport/v2raygrpclite/client.go

@@ -12,7 +12,7 @@ import (
 	"github.com/sagernet/sing-box/common/tls"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing-box/transport/v2rayhttp"
-	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/bufio/deadline"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
 
@@ -34,16 +34,9 @@ type Client struct {
 	transport  *http2.Transport
 	options    option.V2RayGRPCOptions
 	url        *url.URL
-	host       string
 }
 
 func NewClient(ctx context.Context, dialer N.Dialer, serverAddr M.Socksaddr, options option.V2RayGRPCOptions, tlsConfig tls.Config) adapter.V2RayClientTransport {
-	var host string
-	if tlsConfig != nil && tlsConfig.ServerName() != "" {
-		host = M.ParseSocksaddrHostPort(tlsConfig.ServerName(), serverAddr.Port).String()
-	} else {
-		host = serverAddr.String()
-	}
 	client := &Client{
 		ctx:        ctx,
 		dialer:     dialer,
@@ -60,7 +53,6 @@ func NewClient(ctx context.Context, dialer N.Dialer, serverAddr M.Socksaddr, opt
 			Path:    "/" + options.ServiceName + "/Tun",
 			RawPath: "/" + url.PathEscape(options.ServiceName) + "/Tun",
 		},
-		host: host,
 	}
 
 	if tlsConfig == nil {
@@ -90,22 +82,18 @@ func (c *Client) DialContext(ctx context.Context) (net.Conn, error) {
 		Body:   pipeInReader,
 		URL:    c.url,
 		Header: defaultClientHeader,
-		Host:   c.host,
 	}
 	request = request.WithContext(ctx)
 	conn := newLateGunConn(pipeInWriter)
 	go func() {
 		response, err := c.transport.RoundTrip(request)
-		if err != nil {
-			conn.setup(nil, err)
-		} else if response.StatusCode != 200 {
-			response.Body.Close()
-			conn.setup(nil, E.New("unexpected status: ", response.StatusCode, " ", response.Status))
-		} else {
+		if err == nil {
 			conn.setup(response.Body, nil)
+		} else {
+			conn.setup(nil, err)
 		}
 	}()
-	return conn, nil
+	return deadline.NewConn(conn), nil
 }
 
 func (c *Client) Close() error {

transport/v2raygrpclite/conn.go

@@ -156,7 +156,3 @@ func (c *GunConn) SetReadDeadline(t time.Time) error {
 func (c *GunConn) SetWriteDeadline(t time.Time) error {
 	return os.ErrInvalid
 }
-
-func (c *GunConn) NeedAdditionalReadDeadline() bool {
-	return true
-}

transport/v2raygrpclite/server.go

@@ -13,6 +13,7 @@ import (
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing-box/transport/v2rayhttp"
 	"github.com/sagernet/sing/common"
+	"github.com/sagernet/sing/common/bufio/deadline"
 	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
@@ -81,7 +82,7 @@ func (s *Server) ServeHTTP(writer http.ResponseWriter, request *http.Request) {
 	var metadata M.Metadata
 	metadata.Source = sHttp.SourceAddress(request)
 	conn := v2rayhttp.NewHTTP2Wrapper(newGunConn(request.Body, writer, writer.(http.Flusher)))
-	s.handler.NewConnection(request.Context(), conn, metadata)
+	s.handler.NewConnection(request.Context(), deadline.NewConn(conn), metadata)
 	conn.CloseWrapper()
 }
 

transport/v2rayhttp/client.go

@@ -139,16 +139,15 @@ func (c *Client) dialHTTP2(ctx context.Context) (net.Conn, error) {
 	default:
 		request.Host = c.host[rand.Intn(hostLen)]
 	}
-	conn := NewLateHTTPConn(pipeInWriter)
+	conn := newLateHTTPConn(pipeInWriter)
 	go func() {
 		response, err := c.transport.RoundTrip(request)
 		if err != nil {
-			conn.Setup(nil, err)
+			conn.setup(nil, err)
 		} else if response.StatusCode != 200 {
-			response.Body.Close()
-			conn.Setup(nil, E.New("unexpected status: ", response.StatusCode, " ", response.Status))
+			conn.setup(nil, E.New("unexpected status: ", response.StatusCode, " ", response.Status))
 		} else {
-			conn.Setup(response.Body, nil)
+			conn.setup(response.Body, nil)
 		}
 	}()
 	return conn, nil

transport/v2rayhttp/conn.go

@@ -140,14 +140,14 @@ func NewHTTPConn(reader io.Reader, writer io.Writer) HTTP2Conn {
 	}
 }
 
-func NewLateHTTPConn(writer io.Writer) *HTTP2Conn {
+func newLateHTTPConn(writer io.Writer) *HTTP2Conn {
 	return &HTTP2Conn{
 		create: make(chan struct{}),
 		writer: writer,
 	}
 }
 
-func (c *HTTP2Conn) Setup(reader io.Reader, err error) {
+func (c *HTTP2Conn) setup(reader io.Reader, err error) {
 	c.reader = reader
 	c.err = err
 	close(c.create)
@@ -182,30 +182,41 @@ func (c *HTTP2Conn) RemoteAddr() net.Addr {
 }
 
 func (c *HTTP2Conn) SetDeadline(t time.Time) error {
+	if responseWriter, loaded := c.writer.(interface {
+		SetWriteDeadline(time.Time) error
+	}); loaded {
+		return responseWriter.SetWriteDeadline(t)
+	}
 	return os.ErrInvalid
 }
 
 func (c *HTTP2Conn) SetReadDeadline(t time.Time) error {
+	if responseWriter, loaded := c.writer.(interface {
+		SetReadDeadline(time.Time) error
+	}); loaded {
+		return responseWriter.SetReadDeadline(t)
+	}
 	return os.ErrInvalid
 }
 
 func (c *HTTP2Conn) SetWriteDeadline(t time.Time) error {
+	if responseWriter, loaded := c.writer.(interface {
+		SetWriteDeadline(time.Time) error
+	}); loaded {
+		return responseWriter.SetWriteDeadline(t)
+	}
 	return os.ErrInvalid
 }
 
-func (c *HTTP2Conn) NeedAdditionalReadDeadline() bool {
-	return true
-}
-
 type ServerHTTPConn struct {
 	HTTP2Conn
-	Flusher http.Flusher
+	flusher http.Flusher
 }
 
 func (c *ServerHTTPConn) Write(b []byte) (n int, err error) {
 	n, err = c.writer.Write(b)
 	if err == nil {
-		c.Flusher.Flush()
+		c.flusher.Flush()
 	}
 	return
 }
@@ -246,11 +257,6 @@ func (w *HTTP2ConnWrapper) CloseWrapper() {
 	w.closed = true
 }
 
-func (w *HTTP2ConnWrapper) Close() error {
-	w.CloseWrapper()
-	return w.ExtendedConn.Close()
-}
-
 func (w *HTTP2ConnWrapper) Upstream() any {
 	return w.ExtendedConn
 }

transport/v2raywebsocket/client.go

@@ -10,6 +10,7 @@ import (
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/common/tls"
 	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing/common/bufio/deadline"
 	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
@@ -78,11 +79,11 @@ func (c *Client) DialContext(ctx context.Context) (net.Conn, error) {
 	if c.maxEarlyData <= 0 {
 		conn, response, err := c.dialer.DialContext(ctx, c.uri, c.headers)
 		if err == nil {
-			return &WebsocketConn{Conn: conn, Writer: NewWriter(conn, false)}, nil
+			return deadline.NewConn(&WebsocketConn{Conn: conn, Writer: NewWriter(conn, false)}), nil
 		}
 		return nil, wrapDialError(response, err)
 	} else {
-		return &EarlyWebsocketConn{Client: c, ctx: ctx, create: make(chan struct{})}, nil
+		return deadline.NewConn(&EarlyWebsocketConn{Client: c, ctx: ctx, create: make(chan struct{})}), nil
 	}
 }
 

transport/v2raywebsocket/conn.go

@@ -77,10 +77,6 @@ func (c *WebsocketConn) SetWriteDeadline(t time.Time) error {
 	return os.ErrInvalid
 }
 
-func (c *WebsocketConn) NeedAdditionalReadDeadline() bool {
-	return true
-}
-
 func (c *WebsocketConn) Upstream() any {
 	return c.Conn.NetConn()
 }
@@ -218,10 +214,6 @@ func (c *EarlyWebsocketConn) SetWriteDeadline(t time.Time) error {
 	return os.ErrInvalid
 }
 
-func (c *EarlyWebsocketConn) NeedAdditionalReadDeadline() bool {
-	return true
-}
-
 func (c *EarlyWebsocketConn) Upstream() any {
 	return common.PtrOrNil(c.conn)
 }

transport/v2raywebsocket/server.go

@@ -16,6 +16,7 @@ import (
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/buf"
 	"github.com/sagernet/sing/common/bufio"
+	"github.com/sagernet/sing/common/bufio/deadline"
 	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
@@ -107,7 +108,7 @@ func (s *Server) ServeHTTP(writer http.ResponseWriter, request *http.Request) {
 	if len(earlyData) > 0 {
 		conn = bufio.NewCachedConn(conn, buf.As(earlyData))
 	}
-	s.handler.NewConnection(request.Context(), conn, metadata)
+	s.handler.NewConnection(request.Context(), deadline.NewConn(conn), metadata)
 }
 
 func (s *Server) fallbackRequest(ctx context.Context, writer http.ResponseWriter, request *http.Request, statusCode int, err error) {

transport/vless/client.go

@@ -9,6 +9,7 @@ import (
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/buf"
 	"github.com/sagernet/sing/common/bufio"
+	"github.com/sagernet/sing/common/bufio/deadline"
 	E "github.com/sagernet/sing/common/exceptions"
 	"github.com/sagernet/sing/common/logger"
 	M "github.com/sagernet/sing/common/metadata"
@@ -36,156 +37,105 @@ func NewClient(userId string, flow string, logger logger.Logger) (*Client, error
 	return &Client{user, flow, logger}, nil
 }
 
-func (c *Client) prepareConn(conn net.Conn, tlsConn net.Conn) (net.Conn, error) {
+func (c *Client) prepareConn(conn net.Conn) (net.Conn, error) {
 	if c.flow == FlowVision {
-		protocolConn, err := NewVisionConn(conn, tlsConn, c.key, c.logger)
+		vConn, err := NewVisionConn(conn, c.key, c.logger)
 		if err != nil {
 			return nil, E.Cause(err, "initialize vision")
 		}
-		conn = protocolConn
+		conn = vConn
 	}
 	return conn, nil
 }
 
 func (c *Client) DialConn(conn net.Conn, destination M.Socksaddr) (net.Conn, error) {
-	remoteConn := NewConn(conn, c.key, vmess.CommandTCP, destination, c.flow)
-	protocolConn, err := c.prepareConn(remoteConn, conn)
+	vConn, err := c.prepareConn(conn)
 	if err != nil {
 		return nil, err
 	}
-	return protocolConn, common.Error(remoteConn.Write(nil))
+	serverConn := &Conn{Conn: conn, protocolConn: vConn, key: c.key, command: vmess.CommandTCP, destination: destination, flow: c.flow}
+	return deadline.NewConn(serverConn), common.Error(serverConn.Write(nil))
 }
 
 func (c *Client) DialEarlyConn(conn net.Conn, destination M.Socksaddr) (net.Conn, error) {
-	return c.prepareConn(NewConn(conn, c.key, vmess.CommandTCP, destination, c.flow), conn)
+	vConn, err := c.prepareConn(conn)
+	if err != nil {
+		return nil, err
+	}
+	return deadline.NewConn(&Conn{Conn: conn, protocolConn: vConn, key: c.key, command: vmess.CommandTCP, destination: destination, flow: c.flow}), nil
 }
 
-func (c *Client) DialPacketConn(conn net.Conn, destination M.Socksaddr) (*PacketConn, error) {
+func (c *Client) DialPacketConn(conn net.Conn, destination M.Socksaddr) (vmess.PacketConn, error) {
 	serverConn := &PacketConn{Conn: conn, key: c.key, destination: destination, flow: c.flow}
-	return serverConn, common.Error(serverConn.Write(nil))
+	return bufio.NewBindPacketConn(deadline.NewPacketConn(bufio.NewPacketConn(serverConn)), destination), common.Error(serverConn.Write(nil))
 }
 
-func (c *Client) DialEarlyPacketConn(conn net.Conn, destination M.Socksaddr) (*PacketConn, error) {
-	return &PacketConn{Conn: conn, key: c.key, destination: destination, flow: c.flow}, nil
+func (c *Client) DialEarlyPacketConn(conn net.Conn, destination M.Socksaddr) (vmess.PacketConn, error) {
+	return bufio.NewBindPacketConn(deadline.NewPacketConn(bufio.NewPacketConn(&PacketConn{Conn: conn, key: c.key, destination: destination, flow: c.flow})), destination), nil
 }
 
 func (c *Client) DialXUDPPacketConn(conn net.Conn, destination M.Socksaddr) (vmess.PacketConn, error) {
-	remoteConn := NewConn(conn, c.key, vmess.CommandTCP, destination, c.flow)
-	protocolConn, err := c.prepareConn(remoteConn, conn)
+	serverConn := &Conn{Conn: conn, protocolConn: conn, key: c.key, command: vmess.CommandMux, destination: destination, flow: c.flow}
+	err := common.Error(serverConn.Write(nil))
 	if err != nil {
 		return nil, err
 	}
-	return vmess.NewXUDPConn(protocolConn, destination), common.Error(remoteConn.Write(nil))
+	return bufio.NewBindPacketConn(deadline.NewPacketConn(vmess.NewXUDPConn(serverConn, destination)), destination), nil
 }
 
 func (c *Client) DialEarlyXUDPPacketConn(conn net.Conn, destination M.Socksaddr) (vmess.PacketConn, error) {
-	remoteConn := NewConn(conn, c.key, vmess.CommandMux, destination, c.flow)
-	protocolConn, err := c.prepareConn(remoteConn, conn)
-	if err != nil {
-		return nil, err
-	}
-	return vmess.NewXUDPConn(protocolConn, destination), common.Error(remoteConn.Write(nil))
+	return bufio.NewBindPacketConn(deadline.NewPacketConn(vmess.NewXUDPConn(&Conn{Conn: conn, protocolConn: conn, key: c.key, command: vmess.CommandMux, destination: destination, flow: c.flow}, destination)), destination), nil
 }
 
-var (
-	_ N.EarlyConn        = (*Conn)(nil)
-	_ N.VectorisedWriter = (*Conn)(nil)
-)
+var _ N.EarlyConn = (*Conn)(nil)
 
 type Conn struct {
-	N.ExtendedConn
-	writer         N.VectorisedWriter
-	request        Request
+	net.Conn
+	protocolConn   net.Conn
+	key            [16]byte
+	command        byte
+	destination    M.Socksaddr
+	flow           string
 	requestWritten bool
 	responseRead   bool
 }
 
-func NewConn(conn net.Conn, uuid [16]byte, command byte, destination M.Socksaddr, flow string) *Conn {
-	return &Conn{
-		ExtendedConn: bufio.NewExtendedConn(conn),
-		writer:       bufio.NewVectorisedWriter(conn),
-		request: Request{
-			UUID:        uuid,
-			Command:     command,
-			Destination: destination,
-			Flow:        flow,
-		},
-	}
-}
-
-func (c *Conn) Read(b []byte) (n int, err error) {
-	if !c.responseRead {
-		err = ReadResponse(c.ExtendedConn)
-		if err != nil {
-			return
-		}
-		c.responseRead = true
-	}
-	return c.ExtendedConn.Read(b)
-}
-
-func (c *Conn) ReadBuffer(buffer *buf.Buffer) error {
-	if !c.responseRead {
-		err := ReadResponse(c.ExtendedConn)
-		if err != nil {
-			return err
-		}
-		c.responseRead = true
-	}
-	return c.ExtendedConn.ReadBuffer(buffer)
-}
-
-func (c *Conn) Write(b []byte) (n int, err error) {
-	if !c.requestWritten {
-		err = WriteRequest(c.ExtendedConn, c.request, b)
-		if err == nil {
-			n = len(b)
-		}
-		c.requestWritten = true
-		return
-	}
-	return c.ExtendedConn.Write(b)
-}
-
-func (c *Conn) WriteBuffer(buffer *buf.Buffer) error {
-	if !c.requestWritten {
-		EncodeRequest(c.request, buf.With(buffer.ExtendHeader(RequestLen(c.request))))
-		c.requestWritten = true
-	}
-	return c.ExtendedConn.WriteBuffer(buffer)
-}
-
-func (c *Conn) WriteVectorised(buffers []*buf.Buffer) error {
-	if !c.requestWritten {
-		buffer := buf.NewSize(RequestLen(c.request))
-		EncodeRequest(c.request, buffer)
-		c.requestWritten = true
-		return c.writer.WriteVectorised(append([]*buf.Buffer{buffer}, buffers...))
-	}
-	return c.writer.WriteVectorised(buffers)
-}
-
-func (c *Conn) ReaderReplaceable() bool {
-	return c.responseRead
-}
-
-func (c *Conn) WriterReplaceable() bool {
-	return c.requestWritten
-}
-
 func (c *Conn) NeedHandshake() bool {
 	return !c.requestWritten
 }
 
-func (c *Conn) FrontHeadroom() int {
-	if c.requestWritten {
-		return 0
+func (c *Conn) Read(b []byte) (n int, err error) {
+	if !c.responseRead {
+		err = ReadResponse(c.Conn)
+		if err != nil {
+			return
+		}
+		c.responseRead = true
 	}
-	return RequestLen(c.request)
+	return c.protocolConn.Read(b)
+}
+
+func (c *Conn) Write(b []byte) (n int, err error) {
+	if !c.requestWritten {
+		request := Request{c.key, c.command, c.destination, c.flow}
+		if c.protocolConn != nil {
+			err = WriteRequest(c.Conn, request, nil)
+		} else {
+			err = WriteRequest(c.Conn, request, b)
+		}
+		if err == nil {
+			n = len(b)
+		}
+		c.requestWritten = true
+		if c.protocolConn == nil {
+			return
+		}
+	}
+	return c.protocolConn.Write(b)
 }
 
 func (c *Conn) Upstream() any {
-	return c.ExtendedConn
+	return c.Conn
 }
 
 type PacketConn struct {
@@ -264,10 +214,6 @@ func (c *PacketConn) FrontHeadroom() int {
 	return 2
 }
 
-func (c *PacketConn) NeedAdditionalReadDeadline() bool {
-	return true
-}
-
 func (c *PacketConn) Upstream() any {
 	return c.Conn
 }

transport/vless/constant.go

@@ -11,12 +11,10 @@ var (
 	tlsClientHandShakeStart = []byte{0x16, 0x03}
 	tlsServerHandShakeStart = []byte{0x16, 0x03, 0x03}
 	tlsApplicationDataStart = []byte{0x17, 0x03, 0x03}
-)
 
-const (
-	commandPaddingContinue byte = iota
-	commandPaddingEnd
-	commandPaddingDirect
+	commandPaddingContinue byte = 0
+	commandPaddingEnd      byte = 1
+	commandPaddingDirect   byte = 2
 )
 
 var tls13CipherSuiteDic = map[uint16]string{

transport/vless/protocol.go

@@ -128,7 +128,7 @@ func WriteRequest(writer io.Writer, request Request, payload []byte) error {
 	requestLen += 1  // protobuf length
 
 	var addonsLen int
-	if request.Flow != "" {
+	if request.Command == vmess.CommandTCP && request.Flow != "" {
 		addonsLen += 1 // protobuf header
 		addonsLen += UvarintLen(uint64(len(request.Flow)))
 		addonsLen += len(request.Flow)
@@ -165,62 +165,6 @@ func WriteRequest(writer io.Writer, request Request, payload []byte) error {
 	return common.Error(writer.Write(buffer.Bytes()))
 }
 
-func EncodeRequest(request Request, buffer *buf.Buffer) {
-	var requestLen int
-	requestLen += 1  // version
-	requestLen += 16 // uuid
-	requestLen += 1  // protobuf length
-
-	var addonsLen int
-	if request.Flow != "" {
-		addonsLen += 1 // protobuf header
-		addonsLen += UvarintLen(uint64(len(request.Flow)))
-		addonsLen += len(request.Flow)
-		requestLen += addonsLen
-	}
-	requestLen += 1 // command
-	if request.Command != vmess.CommandMux {
-		requestLen += vmess.AddressSerializer.AddrPortLen(request.Destination)
-	}
-	common.Must(
-		buffer.WriteByte(Version),
-		common.Error(buffer.Write(request.UUID[:])),
-		buffer.WriteByte(byte(addonsLen)),
-	)
-	if addonsLen > 0 {
-		common.Must(buffer.WriteByte(10))
-		binary.PutUvarint(buffer.Extend(UvarintLen(uint64(len(request.Flow)))), uint64(len(request.Flow)))
-		common.Must(common.Error(buffer.Write([]byte(request.Flow))))
-	}
-	common.Must(
-		buffer.WriteByte(request.Command),
-	)
-
-	if request.Command != vmess.CommandMux {
-		common.Must(vmess.AddressSerializer.WriteAddrPort(buffer, request.Destination))
-	}
-}
-
-func RequestLen(request Request) int {
-	var requestLen int
-	requestLen += 1  // version
-	requestLen += 16 // uuid
-	requestLen += 1  // protobuf length
-
-	var addonsLen int
-	if request.Flow != "" {
-		addonsLen += 1 // protobuf header
-		addonsLen += UvarintLen(uint64(len(request.Flow)))
-		addonsLen += len(request.Flow)
-		requestLen += addonsLen
-	}
-	requestLen += 1 // command
-	if request.Command != vmess.CommandMux {
-		requestLen += vmess.AddressSerializer.AddrPortLen(request.Destination)
-	}
-	return requestLen
-}
-
 func WritePacketRequest(writer io.Writer, request Request, payload []byte) error {
 	var requestLen int
 	requestLen += 1  // version

transport/vless/service.go

@@ -10,6 +10,7 @@ import (
 	"github.com/sagernet/sing/common/auth"
 	"github.com/sagernet/sing/common/buf"
 	"github.com/sagernet/sing/common/bufio"
+	"github.com/sagernet/sing/common/bufio/deadline"
 	E "github.com/sagernet/sing/common/exceptions"
 	"github.com/sagernet/sing/common/logger"
 	M "github.com/sagernet/sing/common/metadata"
@@ -68,32 +69,30 @@ func (s *Service[T]) NewConnection(ctx context.Context, conn net.Conn, metadata
 	metadata.Destination = request.Destination
 
 	userFlow := s.userFlow[user]
-	if request.Flow == FlowVision && request.Command == vmess.NetworkUDP {
-		return E.New(FlowVision, " flow does not support UDP")
-	} else if request.Flow != userFlow {
-		return E.New("flow mismatch: expected ", flowName(userFlow), ", but got ", flowName(request.Flow))
+
+	var responseWriter io.Writer
+	if request.Command == vmess.CommandTCP {
+		if request.Flow != userFlow {
+			return E.New("flow mismatch: expected ", flowName(userFlow), ", but got ", flowName(request.Flow))
+		}
+		switch userFlow {
+		case "":
+		case FlowVision:
+			responseWriter = conn
+			conn, err = NewVisionConn(conn, request.UUID, s.logger)
+			if err != nil {
+				return E.Cause(err, "initialize vision")
+			}
+		}
 	}
 
-	if request.Command == vmess.CommandUDP {
-		return s.handler.NewPacketConnection(ctx, &serverPacketConn{ExtendedConn: bufio.NewExtendedConn(conn), destination: request.Destination}, metadata)
-	}
-	responseConn := &serverConn{ExtendedConn: bufio.NewExtendedConn(conn), writer: bufio.NewVectorisedWriter(conn)}
-	switch userFlow {
-	case FlowVision:
-		conn, err = NewVisionConn(responseConn, conn, request.UUID, s.logger)
-		if err != nil {
-			return E.Cause(err, "initialize vision")
-		}
-	case "":
-		conn = responseConn
-	default:
-		return E.New("unknown flow: ", userFlow)
-	}
 	switch request.Command {
 	case vmess.CommandTCP:
-		return s.handler.NewConnection(ctx, conn, metadata)
+		return s.handler.NewConnection(ctx, &serverConn{Conn: conn, responseWriter: responseWriter}, metadata)
+	case vmess.CommandUDP:
+		return s.handler.NewPacketConnection(ctx, deadline.NewPacketConn(&serverPacketConn{ExtendedConn: bufio.NewExtendedConn(conn), destination: request.Destination}), metadata)
 	case vmess.CommandMux:
-		return vmess.HandleMuxConnection(ctx, conn, s.handler)
+		return vmess.HandleMuxConnection(ctx, &serverConn{Conn: conn, responseWriter: responseWriter}, s.handler)
 	default:
 		return E.New("unknown command: ", request.Command)
 	}
@@ -106,70 +105,34 @@ func flowName(value string) string {
 	return value
 }
 
-var _ N.VectorisedWriter = (*serverConn)(nil)
-
 type serverConn struct {
-	N.ExtendedConn
-	writer          N.VectorisedWriter
+	net.Conn
+	responseWriter  io.Writer
 	responseWritten bool
 }
 
 func (c *serverConn) Read(b []byte) (n int, err error) {
-	return c.ExtendedConn.Read(b)
+	return c.Conn.Read(b)
 }
 
 func (c *serverConn) Write(b []byte) (n int, err error) {
 	if !c.responseWritten {
-		_, err = bufio.WriteVectorised(c.writer, [][]byte{{Version, 0}, b})
-		if err == nil {
-			n = len(b)
+		if c.responseWriter == nil {
+			_, err = bufio.WriteVectorised(bufio.NewVectorisedWriter(c.Conn), [][]byte{{Version, 0}, b})
+			if err == nil {
+				n = len(b)
+			}
+			c.responseWritten = true
+			return
+		} else {
+			_, err = c.responseWriter.Write([]byte{Version, 0})
+			if err != nil {
+				return
+			}
+			c.responseWritten = true
 		}
-		c.responseWritten = true
-		return
 	}
-	return c.ExtendedConn.Write(b)
-}
-
-func (c *serverConn) WriteBuffer(buffer *buf.Buffer) error {
-	if !c.responseWritten {
-		header := buffer.ExtendHeader(2)
-		header[0] = Version
-		header[1] = 0
-		c.responseWritten = true
-	}
-	return c.ExtendedConn.WriteBuffer(buffer)
-}
-
-func (c *serverConn) WriteVectorised(buffers []*buf.Buffer) error {
-	if !c.responseWritten {
-		err := c.writer.WriteVectorised(append([]*buf.Buffer{buf.As([]byte{Version, 0})}, buffers...))
-		c.responseWritten = true
-		return err
-	}
-	return c.writer.WriteVectorised(buffers)
-}
-
-func (c *serverConn) NeedAdditionalReadDeadline() bool {
-	return true
-}
-
-func (c *serverConn) FrontHeadroom() int {
-	if c.responseWritten {
-		return 0
-	}
-	return 2
-}
-
-func (c *serverConn) ReaderReplaceable() bool {
-	return true
-}
-
-func (c *serverConn) WriterReplaceable() bool {
-	return c.responseWritten
-}
-
-func (c *serverConn) Upstream() any {
-	return c.ExtendedConn
+	return c.Conn.Write(b)
 }
 
 type serverPacketConn struct {

transport/vless/vision.go

@@ -56,12 +56,12 @@ type VisionConn struct {
 	withinPaddingBuffers   bool
 	remainingContent       int
 	remainingPadding       int
-	currentCommand         byte
+	currentCommand         int
 	directRead             bool
 	remainingReader        io.Reader
 }
 
-func NewVisionConn(conn net.Conn, tlsConn net.Conn, userUUID [16]byte, logger logger.Logger) (*VisionConn, error) {
+func NewVisionConn(conn net.Conn, userUUID [16]byte, logger logger.Logger) (*VisionConn, error) {
 	var (
 		loaded         bool
 		reflectType    reflect.Type
@@ -69,7 +69,7 @@ func NewVisionConn(conn net.Conn, tlsConn net.Conn, userUUID [16]byte, logger lo
 		netConn        net.Conn
 	)
 	for _, tlsCreator := range tlsRegistry {
-		loaded, netConn, reflectType, reflectPointer = tlsCreator(tlsConn)
+		loaded, netConn, reflectType, reflectPointer = tlsCreator(conn)
 		if loaded {
 			break
 		}
@@ -103,7 +103,6 @@ func (c *VisionConn) Read(p []byte) (n int, err error) {
 	if c.remainingReader != nil {
 		n, err = c.remainingReader.Read(p)
 		if err == io.EOF {
-			err = nil
 			c.remainingReader = nil
 		}
 		if n > 0 {
@@ -114,7 +113,6 @@ func (c *VisionConn) Read(p []byte) (n int, err error) {
 		return c.netConn.Read(p)
 	}
 	var bufferBytes []byte
-	var chunkBuffer *buf.Buffer
 	if len(p) > xrayChunkSize {
 		n, err = c.Conn.Read(p)
 		if err != nil {
@@ -122,26 +120,21 @@ func (c *VisionConn) Read(p []byte) (n int, err error) {
 		}
 		bufferBytes = p[:n]
 	} else {
-		chunkBuffer, err = c.reader.ReadChunk()
+		buffer, err := c.reader.ReadChunk()
 		if err != nil {
 			return 0, err
 		}
-		bufferBytes = chunkBuffer.Bytes()
+		defer buffer.FullReset()
+		bufferBytes = buffer.Bytes()
 	}
 	if c.withinPaddingBuffers || c.numberOfPacketToFilter > 0 {
 		buffers := c.unPadding(bufferBytes)
-		if chunkBuffer != nil {
-			buffers = common.Map(buffers, func(it *buf.Buffer) *buf.Buffer {
-				return it.ToOwned()
-			})
-			chunkBuffer.FullReset()
-		}
 		if c.remainingContent == 0 && c.remainingPadding == 0 {
-			if c.currentCommand == commandPaddingEnd {
+			if c.currentCommand == 1 {
 				c.withinPaddingBuffers = false
 				c.remainingContent = -1
 				c.remainingPadding = -1
-			} else if c.currentCommand == commandPaddingDirect {
+			} else if c.currentCommand == 2 {
 				c.withinPaddingBuffers = false
 				c.directRead = true
 
@@ -149,17 +142,17 @@ func (c *VisionConn) Read(p []byte) (n int, err error) {
 				if err != nil {
 					return 0, err
 				}
-				buffers = append(buffers, buf.As(inputBuffer))
+				buffers = append(buffers, inputBuffer)
 
 				rawInputBuffer, err := io.ReadAll(c.rawInput)
 				if err != nil {
 					return 0, err
 				}
 
-				buffers = append(buffers, buf.As(rawInputBuffer))
+				buffers = append(buffers, rawInputBuffer)
 
 				c.logger.Trace("XtlsRead readV")
-			} else if c.currentCommand == commandPaddingContinue {
+			} else if c.currentCommand == 0 {
 				c.withinPaddingBuffers = true
 			} else {
 				return 0, E.New("unknown command ", c.currentCommand)
@@ -170,18 +163,14 @@ func (c *VisionConn) Read(p []byte) (n int, err error) {
 			c.withinPaddingBuffers = false
 		}
 		if c.numberOfPacketToFilter > 0 {
-			c.filterTLS(buf.ToSliceMulti(buffers))
+			c.filterTLS(buffers)
 		}
-		c.remainingReader = io.MultiReader(common.Map(buffers, func(it *buf.Buffer) io.Reader { return it })...)
+		c.remainingReader = io.MultiReader(common.Map(buffers, func(it []byte) io.Reader { return bytes.NewReader(it) })...)
 		return c.Read(p)
 	} else {
 		if c.numberOfPacketToFilter > 0 {
 			c.filterTLS([][]byte{bufferBytes})
 		}
-		if chunkBuffer != nil {
-			n = copy(p, bufferBytes)
-			chunkBuffer.Advance(n)
-		}
 		return
 	}
 }
@@ -321,7 +310,7 @@ func (c *VisionConn) padding(buffer *buf.Buffer, command byte) *buf.Buffer {
 	return newBuffer
 }
 
-func (c *VisionConn) unPadding(buffer []byte) []*buf.Buffer {
+func (c *VisionConn) unPadding(buffer []byte) [][]byte {
 	var bufferIndex int
 	if c.remainingContent == -1 && c.remainingPadding == -1 {
 		if len(buffer) >= 21 && bytes.Equal(c.userUUID[:], buffer[:16]) {
@@ -332,17 +321,17 @@ func (c *VisionConn) unPadding(buffer []byte) []*buf.Buffer {
 		}
 	}
 	if c.remainingContent == -1 && c.remainingPadding == -1 {
-		return []*buf.Buffer{buf.As(buffer)}
+		return [][]byte{buffer}
 	}
-	var buffers []*buf.Buffer
+	var buffers [][]byte
 	for bufferIndex < len(buffer) {
 		if c.remainingContent <= 0 && c.remainingPadding <= 0 {
 			if c.currentCommand == 1 {
-				buffers = append(buffers, buf.As(buffer[bufferIndex:]))
+				buffers = append(buffers, buffer[bufferIndex:])
 				break
 			} else {
 				paddingInfo := buffer[bufferIndex : bufferIndex+5]
-				c.currentCommand = paddingInfo[0]
+				c.currentCommand = int(paddingInfo[0])
 				c.remainingContent = int(paddingInfo[1])<<8 | int(paddingInfo[2])
 				c.remainingPadding = int(paddingInfo[3])<<8 | int(paddingInfo[4])
 				bufferIndex += 5
@@ -353,7 +342,7 @@ func (c *VisionConn) unPadding(buffer []byte) []*buf.Buffer {
 			if end > len(buffer)-bufferIndex {
 				end = len(buffer) - bufferIndex
 			}
-			buffers = append(buffers, buf.As(buffer[bufferIndex:bufferIndex+end]))
+			buffers = append(buffers, buffer[bufferIndex:bufferIndex+end])
 			c.remainingContent -= end
 			bufferIndex += end
 		} else {
@@ -371,10 +360,6 @@ func (c *VisionConn) unPadding(buffer []byte) []*buf.Buffer {
 	return buffers
 }
 
-func (c *VisionConn) NeedAdditionalReadDeadline() bool {
-	return true
-}
-
 func (c *VisionConn) Upstream() any {
 	return c.Conn
 }

transport/wireguard/client_bind.go

@@ -7,8 +7,8 @@ import (
 	"sync"
 
 	"github.com/sagernet/sing/common"
+	"github.com/sagernet/sing/common/buf"
 	"github.com/sagernet/sing/common/bufio"
-	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
 	"github.com/sagernet/wireguard-go/conn"
@@ -18,7 +18,6 @@ var _ conn.Bind = (*ClientBind)(nil)
 
 type ClientBind struct {
 	ctx                 context.Context
-	errorHandler        E.Handler
 	dialer              N.Dialer
 	reservedForEndpoint map[M.Socksaddr][3]uint8
 	connAccess          sync.Mutex
@@ -29,10 +28,9 @@ type ClientBind struct {
 	reserved            [3]uint8
 }
 
-func NewClientBind(ctx context.Context, errorHandler E.Handler, dialer N.Dialer, isConnect bool, connectAddr M.Socksaddr, reserved [3]uint8) *ClientBind {
+func NewClientBind(ctx context.Context, dialer N.Dialer, isConnect bool, connectAddr M.Socksaddr, reserved [3]uint8) *ClientBind {
 	return &ClientBind{
 		ctx:                 ctx,
-		errorHandler:        errorHandler,
 		dialer:              dialer,
 		reservedForEndpoint: make(map[M.Socksaddr][3]uint8),
 		isConnect:           isConnect,
@@ -69,10 +67,10 @@ func (c *ClientBind) connect() (*wireConn, error) {
 	if c.isConnect {
 		udpConn, err := c.dialer.DialContext(c.ctx, N.NetworkUDP, c.connectAddr)
 		if err != nil {
-			return nil, err
+			return nil, &wireError{err}
 		}
 		c.conn = &wireConn{
-			PacketConn: &bufio.UnbindPacketConn{
+			NetPacketConn: &bufio.UnbindPacketConn{
 				ExtendedConn: bufio.NewExtendedConn(udpConn),
 				Addr:         c.connectAddr,
 			},
@@ -81,11 +79,11 @@ func (c *ClientBind) connect() (*wireConn, error) {
 	} else {
 		udpConn, err := c.dialer.ListenPacket(c.ctx, M.Socksaddr{Addr: netip.IPv4Unspecified()})
 		if err != nil {
-			return nil, err
+			return nil, &wireError{err}
 		}
 		c.conn = &wireConn{
-			PacketConn: bufio.NewPacketConn(udpConn),
-			done:       make(chan struct{}),
+			NetPacketConn: bufio.NewPacketConn(udpConn),
+			done:          make(chan struct{}),
 		}
 	}
 	return c.conn, nil
@@ -101,38 +99,33 @@ func (c *ClientBind) Open(port uint16) (fns []conn.ReceiveFunc, actualPort uint1
 	return []conn.ReceiveFunc{c.receive}, 0, nil
 }
 
-func (c *ClientBind) receive(packets [][]byte, sizes []int, eps []conn.Endpoint) (count int, err error) {
+func (c *ClientBind) receive(b []byte) (n int, ep conn.Endpoint, err error) {
 	udpConn, err := c.connect()
 	if err != nil {
-		select {
-		case <-c.done:
-			return
-		default:
-		}
-		c.errorHandler.NewError(context.Background(), E.Cause(err, "connect to server"))
-		err = nil
+		err = &wireError{err}
 		return
 	}
-	n, addr, err := udpConn.ReadFrom(packets[0])
+	buffer := buf.With(b)
+	destination, err := udpConn.ReadPacket(buffer)
 	if err != nil {
 		udpConn.Close()
 		select {
 		case <-c.done:
 		default:
-			c.errorHandler.NewError(context.Background(), E.Cause(err, "read packet"))
-			err = nil
+			err = &wireError{err}
 		}
 		return
 	}
-	sizes[0] = n
+	n = buffer.Len()
+	if buffer.Start() > 0 {
+		copy(b, buffer.Bytes())
+	}
 	if n > 3 {
-		b := packets[0]
 		b[1] = 0
 		b[2] = 0
 		b[3] = 0
 	}
-	eps[0] = Endpoint(M.SocksaddrFromNet(addr))
-	count = 1
+	ep = Endpoint(destination)
 	return
 }
 
@@ -159,41 +152,34 @@ func (c *ClientBind) SetMark(mark uint32) error {
 	return nil
 }
 
-func (c *ClientBind) Send(bufs [][]byte, ep conn.Endpoint) error {
+func (c *ClientBind) Send(b []byte, ep conn.Endpoint) error {
 	udpConn, err := c.connect()
 	if err != nil {
 		return err
 	}
 	destination := M.Socksaddr(ep.(Endpoint))
-	for _, b := range bufs {
-		if len(b) > 3 {
-			reserved, loaded := c.reservedForEndpoint[destination]
-			if !loaded {
-				reserved = c.reserved
-			}
-			b[1] = reserved[0]
-			b[2] = reserved[1]
-			b[3] = reserved[2]
-		}
-		_, err = udpConn.WriteTo(b, destination)
-		if err != nil {
-			udpConn.Close()
-			return err
+	if len(b) > 3 {
+		reserved, loaded := c.reservedForEndpoint[destination]
+		if !loaded {
+			reserved = c.reserved
 		}
+		b[1] = reserved[0]
+		b[2] = reserved[1]
+		b[3] = reserved[2]
 	}
-	return nil
+	err = udpConn.WritePacket(buf.As(b), destination)
+	if err != nil {
+		udpConn.Close()
+	}
+	return err
 }
 
 func (c *ClientBind) ParseEndpoint(s string) (conn.Endpoint, error) {
 	return Endpoint(M.ParseSocksaddr(s)), nil
 }
 
-func (c *ClientBind) BatchSize() int {
-	return 1
-}
-
 type wireConn struct {
-	net.PacketConn
+	N.NetPacketConn
 	access sync.Mutex
 	done   chan struct{}
 }
@@ -206,7 +192,7 @@ func (w *wireConn) Close() error {
 		return net.ErrClosed
 	default:
 	}
-	w.PacketConn.Close()
+	w.NetPacketConn.Close()
 	close(w.done)
 	return nil
 }