documentation: Bump version

Co-authored-by: Hiddify <114227601+hiddify1@users.noreply.github.com>

.github/workflows/debug.yml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0
       - name: Get latest go version
@@ -48,7 +48,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0
       - name: Setup Go
@@ -68,7 +68,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0
       - name: Setup Go
@@ -199,7 +199,7 @@ jobs:
       TAGS: with_clash_api,with_quic
     steps:
       - name: Checkout
-        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0
       - name: Get latest go version

.github/workflows/docker.yml

@@ -9,20 +9,20 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
+        uses: actions/checkout@v3
       - name: Setup Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v2
       - name: Setup QEMU for Docker Buildx
-        uses: docker/setup-qemu-action@v3
+        uses: docker/setup-qemu-action@v2
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v2
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
       - name: Docker metadata
         id: metadata
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@v4
         with:
           images: ghcr.io/sagernet/sing-box
       - name: Get tag to build
@@ -35,7 +35,7 @@ jobs:
             echo "versioned=ghcr.io/sagernet/sing-box:${{ github.event.inputs.tag }}" >> $GITHUB_OUTPUT
           fi
       - name: Build and release Docker images
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v4
         with:
           platforms: linux/386,linux/amd64,linux/arm64,linux/s390x
           target: dist

.github/workflows/lint.yml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0
       - name: Get latest go version

Makefile

@@ -28,7 +28,7 @@ ci_build:
 	go build $(MAIN_PARAMS) $(MAIN)
 
 install:
-	go build -o $(PREFIX)/bin/$(NAME) $(MAIN_PARAMS) $(MAIN)
+	go build -o $(PREFIX)/bin/$(NAME) $(PARAMS) $(MAIN)
 
 fmt:
 	@gofumpt -l -w .
@@ -73,7 +73,7 @@ update_android_version:
 	go run ./cmd/internal/update_android_version
 
 build_android:
-	cd ../sing-box-for-android && ./gradlew :app:assembleRelease && ./gradlew --stop
+	cd ../sing-box-for-android && ./gradlew :app:assembleRelease
 
 upload_android:
 	mkdir -p dist/release_android
@@ -137,6 +137,7 @@ release_macos_independent: build_macos_independent notarize_macos_independent wa
 build_tvos:
 	cd ../sing-box-for-apple && \
 	rm -rf build/SFT.xcarchive && \
+	export DEVELOPER_DIR=/Applications/Xcode-beta.app/Contents/Developer && \
 	xcodebuild archive -scheme SFT -configuration Release -archivePath build/SFT.xcarchive
 
 upload_tvos_app_store:
@@ -178,8 +179,8 @@ lib:
 
 lib_install:
 	go get -v -d
-	go install -v github.com/sagernet/gomobile/cmd/gomobile@v0.0.0-20230915142329-c6740b6d2950
-	go install -v github.com/sagernet/gomobile/cmd/gobind@v0.0.0-20230915142329-c6740b6d2950
+	go install -v github.com/sagernet/gomobile/cmd/gomobile@v0.0.0-20230728014906-3de089147f59
+	go install -v github.com/sagernet/gomobile/cmd/gobind@v0.0.0-20230728014906-3de089147f59
 
 clean:
 	rm -rf bin dist sing-box

cmd/sing-box/cmd_merge.go

@@ -1,167 +0,0 @@
-package main
-
-import (
-	"bytes"
-	"os"
-	"path/filepath"
-	"strings"
-
-	"github.com/sagernet/sing-box/common/json"
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing-box/option"
-	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/common/rw"
-
-	"github.com/spf13/cobra"
-)
-
-var commandMerge = &cobra.Command{
-	Use:   "merge [output]",
-	Short: "Merge configurations",
-	Run: func(cmd *cobra.Command, args []string) {
-		err := merge(args[0])
-		if err != nil {
-			log.Fatal(err)
-		}
-	},
-	Args: cobra.ExactArgs(1),
-}
-
-func init() {
-	mainCommand.AddCommand(commandMerge)
-}
-
-func merge(outputPath string) error {
-	mergedOptions, err := readConfigAndMerge()
-	if err != nil {
-		return err
-	}
-	err = mergePathResources(&mergedOptions)
-	if err != nil {
-		return err
-	}
-	buffer := new(bytes.Buffer)
-	encoder := json.NewEncoder(buffer)
-	encoder.SetIndent("", "  ")
-	err = encoder.Encode(mergedOptions)
-	if err != nil {
-		return E.Cause(err, "encode config")
-	}
-	if existsContent, err := os.ReadFile(outputPath); err != nil {
-		if string(existsContent) == buffer.String() {
-			return nil
-		}
-	}
-	err = rw.WriteFile(outputPath, buffer.Bytes())
-	if err != nil {
-		return err
-	}
-	outputPath, _ = filepath.Abs(outputPath)
-	os.Stderr.WriteString(outputPath + "\n")
-	return nil
-}
-
-func mergePathResources(options *option.Options) error {
-	for index, inbound := range options.Inbounds {
-		switch inbound.Type {
-		case C.TypeHTTP:
-			inbound.HTTPOptions.TLS = mergeTLSInboundOptions(inbound.HTTPOptions.TLS)
-		case C.TypeMixed:
-			inbound.MixedOptions.TLS = mergeTLSInboundOptions(inbound.MixedOptions.TLS)
-		case C.TypeVMess:
-			inbound.VMessOptions.TLS = mergeTLSInboundOptions(inbound.VMessOptions.TLS)
-		case C.TypeTrojan:
-			inbound.TrojanOptions.TLS = mergeTLSInboundOptions(inbound.TrojanOptions.TLS)
-		case C.TypeNaive:
-			inbound.NaiveOptions.TLS = mergeTLSInboundOptions(inbound.NaiveOptions.TLS)
-		case C.TypeHysteria:
-			inbound.HysteriaOptions.TLS = mergeTLSInboundOptions(inbound.HysteriaOptions.TLS)
-		case C.TypeVLESS:
-			inbound.VLESSOptions.TLS = mergeTLSInboundOptions(inbound.VLESSOptions.TLS)
-		case C.TypeTUIC:
-			inbound.TUICOptions.TLS = mergeTLSInboundOptions(inbound.TUICOptions.TLS)
-		case C.TypeHysteria2:
-			inbound.Hysteria2Options.TLS = mergeTLSInboundOptions(inbound.Hysteria2Options.TLS)
-		default:
-			continue
-		}
-		options.Inbounds[index] = inbound
-	}
-	for index, outbound := range options.Outbounds {
-		switch outbound.Type {
-		case C.TypeHTTP:
-			outbound.HTTPOptions.TLS = mergeTLSOutboundOptions(outbound.HTTPOptions.TLS)
-		case C.TypeVMess:
-			outbound.VMessOptions.TLS = mergeTLSOutboundOptions(outbound.VMessOptions.TLS)
-		case C.TypeTrojan:
-			outbound.TrojanOptions.TLS = mergeTLSOutboundOptions(outbound.TrojanOptions.TLS)
-		case C.TypeHysteria:
-			outbound.HysteriaOptions.TLS = mergeTLSOutboundOptions(outbound.HysteriaOptions.TLS)
-		case C.TypeSSH:
-			outbound.SSHOptions = mergeSSHOutboundOptions(outbound.SSHOptions)
-		case C.TypeVLESS:
-			outbound.VLESSOptions.TLS = mergeTLSOutboundOptions(outbound.VLESSOptions.TLS)
-		case C.TypeTUIC:
-			outbound.TUICOptions.TLS = mergeTLSOutboundOptions(outbound.TUICOptions.TLS)
-		case C.TypeHysteria2:
-			outbound.Hysteria2Options.TLS = mergeTLSOutboundOptions(outbound.Hysteria2Options.TLS)
-		default:
-			continue
-		}
-		options.Outbounds[index] = outbound
-	}
-	return nil
-}
-
-func mergeTLSInboundOptions(options *option.InboundTLSOptions) *option.InboundTLSOptions {
-	if options == nil {
-		return nil
-	}
-	if options.CertificatePath != "" {
-		if content, err := os.ReadFile(options.CertificatePath); err == nil {
-			options.Certificate = strings.Split(string(content), "\n")
-		}
-	}
-	if options.KeyPath != "" {
-		if content, err := os.ReadFile(options.KeyPath); err == nil {
-			options.Key = strings.Split(string(content), "\n")
-		}
-	}
-	if options.ECH != nil {
-		if options.ECH.KeyPath != "" {
-			if content, err := os.ReadFile(options.ECH.KeyPath); err == nil {
-				options.ECH.Key = strings.Split(string(content), "\n")
-			}
-		}
-	}
-	return options
-}
-
-func mergeTLSOutboundOptions(options *option.OutboundTLSOptions) *option.OutboundTLSOptions {
-	if options == nil {
-		return nil
-	}
-	if options.CertificatePath != "" {
-		if content, err := os.ReadFile(options.CertificatePath); err == nil {
-			options.Certificate = strings.Split(string(content), "\n")
-		}
-	}
-	if options.ECH != nil {
-		if options.ECH.ConfigPath != "" {
-			if content, err := os.ReadFile(options.ECH.ConfigPath); err == nil {
-				options.ECH.Config = strings.Split(string(content), "\n")
-			}
-		}
-	}
-	return options
-}
-
-func mergeSSHOutboundOptions(options option.SSHOutboundOptions) option.SSHOutboundOptions {
-	if options.PrivateKeyPath != "" {
-		if content, err := os.ReadFile(options.PrivateKeyPath); err == nil {
-			options.PrivateKey = strings.Split(string(content), "\n")
-		}
-	}
-	return options
-}

common/baderror/baderror.go

@@ -0,0 +1,62 @@
+package baderror
+
+import (
+	"context"
+	"io"
+	"net"
+	"strings"
+
+	E "github.com/sagernet/sing/common/exceptions"
+)
+
+func Contains(err error, msgList ...string) bool {
+	for _, msg := range msgList {
+		if strings.Contains(err.Error(), msg) {
+			return true
+		}
+	}
+	return false
+}
+
+func WrapH2(err error) error {
+	if err == nil {
+		return nil
+	}
+	err = E.Unwrap(err)
+	if err == io.ErrUnexpectedEOF {
+		return io.EOF
+	}
+	if Contains(err, "client disconnected", "body closed by handler", "response body closed", "; CANCEL") {
+		return net.ErrClosed
+	}
+	return err
+}
+
+func WrapGRPC(err error) error {
+	// grpc uses stupid internal error types
+	if err == nil {
+		return nil
+	}
+	if Contains(err, "EOF") {
+		return io.EOF
+	}
+	if Contains(err, "Canceled") {
+		return context.Canceled
+	}
+	if Contains(err,
+		"the client connection is closing",
+		"server closed the stream without sending trailers") {
+		return net.ErrClosed
+	}
+	return err
+}
+
+func WrapQUIC(err error) error {
+	if err == nil {
+		return nil
+	}
+	if Contains(err, "canceled by local with error code 0") {
+		return net.ErrClosed
+	}
+	return err
+}

common/dialer/conntrack/conn.go

@@ -17,7 +17,7 @@ func NewConn(conn net.Conn) (net.Conn, error) {
 	element := openConnection.PushBack(conn)
 	connAccess.Unlock()
 	if KillerEnabled {
-		err := KillerCheck()
+		err := killerCheck()
 		if err != nil {
 			conn.Close()
 			return nil, err

common/dialer/conntrack/killer.go

@@ -1,20 +1,20 @@
 package conntrack
 
 import (
+	"runtime"
 	runtimeDebug "runtime/debug"
 	"time"
 
 	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/common/memory"
 )
 
 var (
 	KillerEnabled   bool
-	MemoryLimit     uint64
+	MemoryLimit     int64
 	killerLastCheck time.Time
 )
 
-func KillerCheck() error {
+func killerCheck() error {
 	if !KillerEnabled {
 		return nil
 	}
@@ -23,7 +23,10 @@ func KillerCheck() error {
 		return nil
 	}
 	killerLastCheck = nowTime
-	if memory.Total() > MemoryLimit {
+	var memStats runtime.MemStats
+	runtime.ReadMemStats(&memStats)
+	inuseMemory := int64(memStats.StackInuse + memStats.HeapInuse + memStats.HeapIdle - memStats.HeapReleased)
+	if inuseMemory > MemoryLimit {
 		Close()
 		go func() {
 			time.Sleep(time.Second)

common/dialer/conntrack/packet_conn.go

@@ -18,7 +18,7 @@ func NewPacketConn(conn net.PacketConn) (net.PacketConn, error) {
 	element := openConnection.PushBack(conn)
 	connAccess.Unlock()
 	if KillerEnabled {
-		err := KillerCheck()
+		err := killerCheck()
 		if err != nil {
 			conn.Close()
 			return nil, err

common/dialer/default.go

@@ -6,7 +6,7 @@ import (
 	"time"
 
 	"github.com/sagernet/sing-box/adapter"
-	"github.com/sagernet/sing-box/common/conntrack"
+	"github.com/sagernet/sing-box/common/dialer/conntrack"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing/common/control"

common/dialer/tfo.go

@@ -7,7 +7,6 @@ import (
 	"io"
 	"net"
 	"os"
-	"sync"
 	"time"
 
 	"github.com/sagernet/sing/common"
@@ -25,7 +24,6 @@ type slowOpenConn struct {
 	destination M.Socksaddr
 	conn        net.Conn
 	create      chan struct{}
-	access      sync.Mutex
 	err         error
 }
 
@@ -62,26 +60,16 @@ func (c *slowOpenConn) Read(b []byte) (n int, err error) {
 }
 
 func (c *slowOpenConn) Write(b []byte) (n int, err error) {
-	if c.conn != nil {
-		return c.conn.Write(b)
-	}
-	c.access.Lock()
-	defer c.access.Unlock()
-	select {
-	case <-c.create:
-		if c.err != nil {
-			return 0, c.err
+	if c.conn == nil {
+		c.conn, err = c.dialer.DialContext(c.ctx, c.network, c.destination.String(), b)
+		if err != nil {
+			c.conn = nil
+			c.err = E.Cause(err, "dial tcp fast open")
 		}
-		return c.conn.Write(b)
-	default:
+		close(c.create)
+		return
 	}
-	c.conn, err = c.dialer.DialContext(c.ctx, c.network, c.destination.String(), b)
-	if err != nil {
-		c.conn = nil
-		c.err = E.Cause(err, "dial tcp fast open")
-	}
-	close(c.create)
-	return
+	return c.conn.Write(b)
 }
 
 func (c *slowOpenConn) Close() error {

common/humanize/bytes.go

@@ -1,158 +0,0 @@
-package humanize
-
-import (
-	"fmt"
-	"math"
-	"strconv"
-	"strings"
-	"unicode"
-)
-
-// IEC Sizes.
-// kibis of bits
-const (
-	Byte = 1 << (iota * 10)
-	KiByte
-	MiByte
-	GiByte
-	TiByte
-	PiByte
-	EiByte
-)
-
-// SI Sizes.
-const (
-	IByte = 1
-	KByte = IByte * 1000
-	MByte = KByte * 1000
-	GByte = MByte * 1000
-	TByte = GByte * 1000
-	PByte = TByte * 1000
-	EByte = PByte * 1000
-)
-
-var defaultSizeTable = map[string]uint64{
-	"b":   Byte,
-	"kib": KiByte,
-	"kb":  KByte,
-	"mib": MiByte,
-	"mb":  MByte,
-	"gib": GiByte,
-	"gb":  GByte,
-	"tib": TiByte,
-	"tb":  TByte,
-	"pib": PiByte,
-	"pb":  PByte,
-	"eib": EiByte,
-	"eb":  EByte,
-	// Without suffix
-	"":   Byte,
-	"ki": KiByte,
-	"k":  KByte,
-	"mi": MiByte,
-	"m":  MByte,
-	"gi": GiByte,
-	"g":  GByte,
-	"ti": TiByte,
-	"t":  TByte,
-	"pi": PiByte,
-	"p":  PByte,
-	"ei": EiByte,
-	"e":  EByte,
-}
-
-var memorysSizeTable = map[string]uint64{
-	"b":  Byte,
-	"kb": KiByte,
-	"mb": MiByte,
-	"gb": GiByte,
-	"tb": TiByte,
-	"pb": PiByte,
-	"eb": EiByte,
-	"":   Byte,
-	"k":  KiByte,
-	"m":  MiByte,
-	"g":  GiByte,
-	"t":  TiByte,
-	"p":  PiByte,
-	"e":  EiByte,
-}
-
-var (
-	defaultSizes = []string{"B", "kB", "MB", "GB", "TB", "PB", "EB"}
-	iSizes       = []string{"B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB"}
-)
-
-func Bytes(s uint64) string {
-	return humanateBytes(s, 1000, defaultSizes)
-}
-
-func MemoryBytes(s uint64) string {
-	return humanateBytes(s, 1024, defaultSizes)
-}
-
-func IBytes(s uint64) string {
-	return humanateBytes(s, 1024, iSizes)
-}
-
-func logn(n, b float64) float64 {
-	return math.Log(n) / math.Log(b)
-}
-
-func humanateBytes(s uint64, base float64, sizes []string) string {
-	if s < 10 {
-		return fmt.Sprintf("%d B", s)
-	}
-	e := math.Floor(logn(float64(s), base))
-	suffix := sizes[int(e)]
-	val := math.Floor(float64(s)/math.Pow(base, e)*10+0.5) / 10
-	f := "%.0f %s"
-	if val < 10 {
-		f = "%.1f %s"
-	}
-
-	return fmt.Sprintf(f, val, suffix)
-}
-
-func ParseBytes(s string) (uint64, error) {
-	return parseBytes0(s, defaultSizeTable)
-}
-
-func ParseMemoryBytes(s string) (uint64, error) {
-	return parseBytes0(s, memorysSizeTable)
-}
-
-func parseBytes0(s string, sizeTable map[string]uint64) (uint64, error) {
-	lastDigit := 0
-	hasComma := false
-	for _, r := range s {
-		if !(unicode.IsDigit(r) || r == '.' || r == ',') {
-			break
-		}
-		if r == ',' {
-			hasComma = true
-		}
-		lastDigit++
-	}
-
-	num := s[:lastDigit]
-	if hasComma {
-		num = strings.Replace(num, ",", "", -1)
-	}
-
-	f, err := strconv.ParseFloat(num, 64)
-	if err != nil {
-		return 0, err
-	}
-
-	extra := strings.ToLower(strings.TrimSpace(s[lastDigit:]))
-	if m, ok := sizeTable[extra]; ok {
-		f *= float64(m)
-		if f >= math.MaxUint64 {
-			return 0, fmt.Errorf("too large: %v", s)
-		}
-		return uint64(f), nil
-	}
-
-	return 0, fmt.Errorf("unhandled size name: %v", extra)
-}

common/interrupt/conn.go

@@ -1,75 +0,0 @@
-package interrupt
-
-import (
-	"net"
-
-	"github.com/sagernet/sing/common/x/list"
-)
-
-/*type GroupedConn interface {
-	MarkAsInternal()
-}
-
-func MarkAsInternal(conn any) {
-	if groupedConn, isGroupConn := common.Cast[GroupedConn](conn); isGroupConn {
-		groupedConn.MarkAsInternal()
-	}
-}*/
-
-type Conn struct {
-	net.Conn
-	group   *Group
-	element *list.Element[*groupConnItem]
-}
-
-/*func (c *Conn) MarkAsInternal() {
-	c.element.Value.internal = true
-}*/
-
-func (c *Conn) Close() error {
-	c.group.access.Lock()
-	defer c.group.access.Unlock()
-	c.group.connections.Remove(c.element)
-	return c.Conn.Close()
-}
-
-func (c *Conn) ReaderReplaceable() bool {
-	return true
-}
-
-func (c *Conn) WriterReplaceable() bool {
-	return true
-}
-
-func (c *Conn) Upstream() any {
-	return c.Conn
-}
-
-type PacketConn struct {
-	net.PacketConn
-	group   *Group
-	element *list.Element[*groupConnItem]
-}
-
-/*func (c *PacketConn) MarkAsInternal() {
-	c.element.Value.internal = true
-}*/
-
-func (c *PacketConn) Close() error {
-	c.group.access.Lock()
-	defer c.group.access.Unlock()
-	c.group.connections.Remove(c.element)
-	return c.PacketConn.Close()
-}
-
-func (c *PacketConn) ReaderReplaceable() bool {
-	return true
-}
-
-func (c *PacketConn) WriterReplaceable() bool {
-	return true
-}
-
-func (c *PacketConn) Upstream() any {
-	return c.PacketConn
-}

common/interrupt/context.go

@@ -1,13 +0,0 @@
-package interrupt
-
-import "context"
-
-type contextKeyIsExternalConnection struct{}
-
-func ContextWithIsExternalConnection(ctx context.Context) context.Context {
-	return context.WithValue(ctx, contextKeyIsExternalConnection{}, true)
-}
-
-func IsExternalConnectionFromContext(ctx context.Context) bool {
-	return ctx.Value(contextKeyIsExternalConnection{}) != nil
-}

common/interrupt/group.go

@@ -1,52 +0,0 @@
-package interrupt
-
-import (
-	"io"
-	"net"
-	"sync"
-
-	"github.com/sagernet/sing/common/x/list"
-)
-
-type Group struct {
-	access      sync.Mutex
-	connections list.List[*groupConnItem]
-}
-
-type groupConnItem struct {
-	conn       io.Closer
-	isExternal bool
-}
-
-func NewGroup() *Group {
-	return &Group{}
-}
-
-func (g *Group) NewConn(conn net.Conn, isExternal bool) net.Conn {
-	g.access.Lock()
-	defer g.access.Unlock()
-	item := g.connections.PushBack(&groupConnItem{conn, isExternal})
-	return &Conn{Conn: conn, group: g, element: item}
-}
-
-func (g *Group) NewPacketConn(conn net.PacketConn, isExternal bool) net.PacketConn {
-	g.access.Lock()
-	defer g.access.Unlock()
-	item := g.connections.PushBack(&groupConnItem{conn, isExternal})
-	return &PacketConn{PacketConn: conn, group: g, element: item}
-}
-
-func (g *Group) Interrupt(interruptExternalConnections bool) {
-	g.access.Lock()
-	defer g.access.Unlock()
-	var toDelete []*list.Element[*groupConnItem]
-	for element := g.connections.Front(); element != nil; element = element.Next() {
-		if !element.Value.isExternal || interruptExternalConnections {
-			element.Value.conn.Close()
-			toDelete = append(toDelete, element)
-		}
-	}
-	for _, element := range toDelete {
-		g.connections.Remove(element)
-	}
-}

common/qtls/wrapper.go

@@ -0,0 +1,120 @@
+package qtls
+
+import (
+	"context"
+	"crypto/tls"
+	"net"
+	"net/http"
+
+	"github.com/sagernet/quic-go"
+	"github.com/sagernet/quic-go/http3"
+	M "github.com/sagernet/sing/common/metadata"
+	aTLS "github.com/sagernet/sing/common/tls"
+)
+
+type QUICConfig interface {
+	Dial(ctx context.Context, conn net.PacketConn, addr net.Addr, config *quic.Config) (quic.Connection, error)
+	DialEarly(ctx context.Context, conn net.PacketConn, addr net.Addr, config *quic.Config) (quic.EarlyConnection, error)
+	CreateTransport(conn net.PacketConn, quicConnPtr *quic.EarlyConnection, serverAddr M.Socksaddr, quicConfig *quic.Config, enableDatagrams bool) http.RoundTripper
+}
+
+type QUICServerConfig interface {
+	Listen(conn net.PacketConn, config *quic.Config) (QUICListener, error)
+	ListenEarly(conn net.PacketConn, config *quic.Config) (QUICEarlyListener, error)
+	ConfigureHTTP3()
+}
+
+type QUICListener interface {
+	Accept(ctx context.Context) (quic.Connection, error)
+	Close() error
+	Addr() net.Addr
+}
+
+type QUICEarlyListener interface {
+	Accept(ctx context.Context) (quic.EarlyConnection, error)
+	Close() error
+	Addr() net.Addr
+}
+
+func Dial(ctx context.Context, conn net.PacketConn, addr net.Addr, config aTLS.Config, quicConfig *quic.Config) (quic.Connection, error) {
+	if quicTLSConfig, isQUICConfig := config.(QUICConfig); isQUICConfig {
+		return quicTLSConfig.Dial(ctx, conn, addr, quicConfig)
+	}
+	tlsConfig, err := config.Config()
+	if err != nil {
+		return nil, err
+	}
+	return quic.Dial(ctx, conn, addr, tlsConfig, quicConfig)
+}
+
+func DialEarly(ctx context.Context, conn net.PacketConn, addr net.Addr, config aTLS.Config, quicConfig *quic.Config) (quic.EarlyConnection, error) {
+	if quicTLSConfig, isQUICConfig := config.(QUICConfig); isQUICConfig {
+		return quicTLSConfig.DialEarly(ctx, conn, addr, quicConfig)
+	}
+	tlsConfig, err := config.Config()
+	if err != nil {
+		return nil, err
+	}
+	return quic.DialEarly(ctx, conn, addr, tlsConfig, quicConfig)
+}
+
+func CreateTransport(conn net.PacketConn, quicConnPtr *quic.EarlyConnection, serverAddr M.Socksaddr, config aTLS.Config, quicConfig *quic.Config, enableDatagrams bool) (http.RoundTripper, error) {
+	if quicTLSConfig, isQUICConfig := config.(QUICConfig); isQUICConfig {
+		return quicTLSConfig.CreateTransport(conn, quicConnPtr, serverAddr, quicConfig, enableDatagrams), nil
+	}
+	tlsConfig, err := config.Config()
+	if err != nil {
+		return nil, err
+	}
+	return &http3.RoundTripper{
+		TLSClientConfig: tlsConfig,
+		QuicConfig:      quicConfig,
+		EnableDatagrams: enableDatagrams,
+		Dial: func(ctx context.Context, addr string, tlsCfg *tls.Config, cfg *quic.Config) (quic.EarlyConnection, error) {
+			quicConn, err := quic.DialEarly(ctx, conn, serverAddr.UDPAddr(), tlsCfg, cfg)
+			if err != nil {
+				return nil, err
+			}
+			*quicConnPtr = quicConn
+			return quicConn, nil
+		},
+	}, nil
+}
+
+func Listen(conn net.PacketConn, config aTLS.ServerConfig, quicConfig *quic.Config) (QUICListener, error) {
+	if quicTLSConfig, isQUICConfig := config.(QUICServerConfig); isQUICConfig {
+		return quicTLSConfig.Listen(conn, quicConfig)
+	}
+	tlsConfig, err := config.Config()
+	if err != nil {
+		return nil, err
+	}
+	return quic.Listen(conn, tlsConfig, quicConfig)
+}
+
+func ListenEarly(conn net.PacketConn, config aTLS.ServerConfig, quicConfig *quic.Config) (QUICEarlyListener, error) {
+	if quicTLSConfig, isQUICConfig := config.(QUICServerConfig); isQUICConfig {
+		return quicTLSConfig.ListenEarly(conn, quicConfig)
+	}
+	tlsConfig, err := config.Config()
+	if err != nil {
+		return nil, err
+	}
+	return quic.ListenEarly(conn, tlsConfig, quicConfig)
+}
+
+func ConfigureHTTP3(config aTLS.ServerConfig) error {
+	if len(config.NextProtos()) == 0 {
+		config.SetNextProtos([]string{http3.NextProtoH3})
+	}
+	if quicTLSConfig, isQUICConfig := config.(QUICServerConfig); isQUICConfig {
+		quicTLSConfig.ConfigureHTTP3()
+		return nil
+	}
+	tlsConfig, err := config.Config()
+	if err != nil {
+		return err
+	}
+	http3.ConfigureTLSConfig(tlsConfig)
+	return nil
+}

common/settings/proxy_darwin.go

@@ -3,7 +3,6 @@ package settings
 import (
 	"context"
 	"net/netip"
-	"strconv"
 	"strings"
 
 	"github.com/sagernet/sing-box/adapter"
@@ -89,16 +88,16 @@ func (p *DarwinSystemProxy) update0() error {
 		return err
 	}
 	if p.supportSOCKS {
-		err = shell.Exec("networksetup", "-setsocksfirewallproxy", interfaceDisplayName, p.serverAddr.AddrString(), strconv.Itoa(int(p.serverAddr.Port))).Attach().Run()
+		err = shell.Exec("networksetup", "-setsocksfirewallproxy", interfaceDisplayName, p.serverAddr.String()).Attach().Run()
 	}
 	if err != nil {
 		return err
 	}
-	err = shell.Exec("networksetup", "-setwebproxy", interfaceDisplayName, p.serverAddr.AddrString(), strconv.Itoa(int(p.serverAddr.Port))).Attach().Run()
+	err = shell.Exec("networksetup", "-setwebproxy", interfaceDisplayName, p.serverAddr.String()).Attach().Run()
 	if err != nil {
 		return err
 	}
-	err = shell.Exec("networksetup", "-setsecurewebproxy", interfaceDisplayName, p.serverAddr.AddrString(), strconv.Itoa(int(p.serverAddr.Port))).Attach().Run()
+	err = shell.Exec("networksetup", "-setsecurewebproxy", interfaceDisplayName, p.serverAddr.String()).Attach().Run()
 	if err != nil {
 		return err
 	}

common/settings/proxy_linux.go

@@ -154,7 +154,7 @@ func (p *LinuxSystemProxy) setKDEProxy(proxyTypes ...string) error {
 			"--file",
 			"kioslaverc",
 			"--group",
-			"Proxy Settings",
+			"'Proxy Settings'",
 			"--key", proxyType+"Proxy",
 			proxyUrl,
 		)

common/tls/acme.go

@@ -9,13 +9,10 @@ import (
 	"strings"
 
 	"github.com/sagernet/sing-box/adapter"
-	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/option"
 	E "github.com/sagernet/sing/common/exceptions"
 
 	"github.com/caddyserver/certmagic"
-	"github.com/libdns/alidns"
-	"github.com/libdns/cloudflare"
 	"github.com/mholt/acmez/acme"
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
@@ -77,21 +74,6 @@ func startACME(ctx context.Context, options option.InboundACMEOptions) (*tls.Con
 		AltTLSALPNPort:          int(options.AlternativeTLSPort),
 		Logger:                  config.Logger,
 	}
-	if dnsOptions := options.DNS01Challenge; dnsOptions != nil && dnsOptions.Provider != "" {
-		var solver certmagic.DNS01Solver
-		switch dnsOptions.Provider {
-		case C.DNSProviderAliDNS:
-			solver.DNSProvider = &alidns.Provider{
-				AccKeyID:     dnsOptions.AliDNSOptions.AccessKeyID,
-				AccKeySecret: dnsOptions.AliDNSOptions.AccessKeySecret,
-				RegionID:     dnsOptions.AliDNSOptions.RegionID,
-			}
-		case C.DNSProviderCloudflare:
-			solver.DNSProvider = &cloudflare.Provider{
-				APIToken: dnsOptions.CloudflareOptions.APIToken,
-			}
-		}
-	}
 	if options.ExternalAccount != nil && options.ExternalAccount.KeyID != "" {
 		acmeConfig.ExternalAccount = (*acme.EAB)(options.ExternalAccount)
 	}

common/tls/ech_client.go

@@ -149,8 +149,8 @@ func NewECHClient(ctx context.Context, serverAddress string, options option.Outb
 		}
 	}
 	var certificate []byte
-	if len(options.Certificate) > 0 {
-		certificate = []byte(strings.Join(options.Certificate, "\n"))
+	if options.Certificate != "" {
+		certificate = []byte(options.Certificate)
 	} else if options.CertificatePath != "" {
 		content, err := os.ReadFile(options.CertificatePath)
 		if err != nil {

common/tls/ech_quic.go

@@ -10,13 +10,13 @@ import (
 	"github.com/sagernet/cloudflare-tls"
 	"github.com/sagernet/quic-go/ech"
 	"github.com/sagernet/quic-go/http3_ech"
-	"github.com/sagernet/sing-quic"
+	"github.com/sagernet/sing-box/common/qtls"
 	M "github.com/sagernet/sing/common/metadata"
 )
 
 var (
-	_ qtls.Config       = (*echClientConfig)(nil)
-	_ qtls.ServerConfig = (*echServerConfig)(nil)
+	_ qtls.QUICConfig       = (*echClientConfig)(nil)
+	_ qtls.QUICServerConfig = (*echServerConfig)(nil)
 )
 
 func (c *echClientConfig) Dial(ctx context.Context, conn net.PacketConn, addr net.Addr, config *quic.Config) (quic.Connection, error) {
@@ -43,11 +43,11 @@ func (c *echClientConfig) CreateTransport(conn net.PacketConn, quicConnPtr *quic
 	}
 }
 
-func (c *echServerConfig) Listen(conn net.PacketConn, config *quic.Config) (qtls.Listener, error) {
+func (c *echServerConfig) Listen(conn net.PacketConn, config *quic.Config) (qtls.QUICListener, error) {
 	return quic.Listen(conn, c.config, config)
 }
 
-func (c *echServerConfig) ListenEarly(conn net.PacketConn, config *quic.Config) (qtls.EarlyListener, error) {
+func (c *echServerConfig) ListenEarly(conn net.PacketConn, config *quic.Config) (qtls.QUICEarlyListener, error) {
 	return quic.ListenEarly(conn, c.config, config)
 }
 

common/tls/std_client.go

@@ -7,7 +7,6 @@ import (
 	"net"
 	"net/netip"
 	"os"
-	"strings"
 
 	"github.com/sagernet/sing-box/option"
 	E "github.com/sagernet/sing/common/exceptions"
@@ -112,8 +111,8 @@ func NewSTDClient(ctx context.Context, serverAddress string, options option.Outb
 		}
 	}
 	var certificate []byte
-	if len(options.Certificate) > 0 {
-		certificate = []byte(strings.Join(options.Certificate, "\n"))
+	if options.Certificate != "" {
+		certificate = []byte(options.Certificate)
 	} else if options.CertificatePath != "" {
 		content, err := os.ReadFile(options.CertificatePath)
 		if err != nil {

common/tls/utls_client.go

@@ -10,7 +10,6 @@ import (
 	"net"
 	"net/netip"
 	"os"
-	"strings"
 
 	"github.com/sagernet/sing-box/option"
 	E "github.com/sagernet/sing/common/exceptions"
@@ -169,8 +168,8 @@ func NewUTLSClient(ctx context.Context, serverAddress string, options option.Out
 		}
 	}
 	var certificate []byte
-	if len(options.Certificate) > 0 {
-		certificate = []byte(strings.Join(options.Certificate, "\n"))
+	if options.Certificate != "" {
+		certificate = []byte(options.Certificate)
 	} else if options.CertificatePath != "" {
 		content, err := os.ReadFile(options.CertificatePath)
 		if err != nil {

constant/dns.go

@@ -1,6 +0,0 @@
-package constant
-
-const (
-	DNSProviderAliDNS     = "alidns"
-	DNSProviderCloudflare = "cloudflare"
-)

debug_go118.go

@@ -5,7 +5,7 @@ package box
 import (
 	"runtime/debug"
 
-	"github.com/sagernet/sing-box/common/conntrack"
+	"github.com/sagernet/sing-box/common/dialer/conntrack"
 	"github.com/sagernet/sing-box/option"
 )
 
@@ -28,7 +28,7 @@ func applyDebugOptions(options option.DebugOptions) {
 	}
 	if options.MemoryLimit != 0 {
 		// debug.SetMemoryLimit(int64(options.MemoryLimit))
-		conntrack.MemoryLimit = uint64(options.MemoryLimit)
+		conntrack.MemoryLimit = int64(options.MemoryLimit)
 	}
 	if options.OOMKiller != nil {
 		conntrack.KillerEnabled = *options.OOMKiller

debug_go119.go

@@ -5,7 +5,7 @@ package box
 import (
 	"runtime/debug"
 
-	"github.com/sagernet/sing-box/common/conntrack"
+	"github.com/sagernet/sing-box/common/dialer/conntrack"
 	"github.com/sagernet/sing-box/option"
 )
 
@@ -27,8 +27,8 @@ func applyDebugOptions(options option.DebugOptions) {
 		debug.SetTraceback(options.TraceBack)
 	}
 	if options.MemoryLimit != 0 {
-		debug.SetMemoryLimit(int64(float64(options.MemoryLimit) / 1.5))
-		conntrack.MemoryLimit = uint64(options.MemoryLimit)
+		debug.SetMemoryLimit(int64(options.MemoryLimit))
+		conntrack.MemoryLimit = int64(options.MemoryLimit)
 	}
 	if options.OOMKiller != nil {
 		conntrack.KillerEnabled = *options.OOMKiller

debug_http.go

@@ -7,12 +7,12 @@ import (
 	"runtime/debug"
 
 	"github.com/sagernet/sing-box/common/badjson"
-	"github.com/sagernet/sing-box/common/humanize"
 	"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"
 )
 
@@ -37,9 +37,9 @@ func applyDebugListenOption(options option.DebugOptions) {
 			runtime.ReadMemStats(&memStats)
 
 			var memObject badjson.JSONObject
-			memObject.Put("heap", humanize.MemoryBytes(memStats.HeapInuse))
-			memObject.Put("stack", humanize.MemoryBytes(memStats.StackInuse))
-			memObject.Put("idle", humanize.MemoryBytes(memStats.HeapIdle-memStats.HeapReleased))
+			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())
 

docs/changelog.md

@@ -1,77 +1,7 @@
-#### 1.5.0-rc.2
+#### 1.5.0-beta.4
 
 * Fixes and improvements
 
-#### 1.5.0-rc.1
-
-* Fixes and improvements
-
-#### 1.5.0-beta.12
-
-* Add `merge` command **1**
-* Fixes and improvements
-
-**1**:
-
-This command also parses path resources that appear in the configuration file and replaces them with embedded
-configuration, such as TLS certificates or SSH private keys.
-
-```
-Merge configuration
-
-Usage:
-  sing-box merge [output] [flags]
-
-Flags:
-  -h, --help   help for merge
-
-Global Flags:
-  -c, --config stringArray             set configuration file path
-  -C, --config-directory stringArray   set configuration directory path
-  -D, --directory string               set working directory
-      --disable-color                  disable color output
-```
-
-#### 1.5.0-beta.11
-
-* Add DNS01 challenge support for ACME TLS certificate issuer **1**
-* Fixes and improvements
-
-**1**:
-
-Only `Alibaba Cloud DNS` and `Cloudflare` are supported,
-see [ACME Fields](/configuration/shared/tls#acme-fields)
-and [DNS01 Challenge Fields](/configuration/shared/dns01_challenge).
-
-#### 1.5.0-beta.10
-
-* Add `interrupt_exist_connections` option for `Selector` and `URLTest` outbounds **1**
-* Fixes and improvements
-
-**1**:
-
-Interrupt existing connections when the selected outbound has changed.
-
-Only inbound connections are affected by this setting, internal connections will always be interrupted.
-
-#### 1.4.3
-
-* Fixes and improvements
-
-#### 1.5.0-beta.8
-
-* Fixes and improvements
-
-#### 1.4.2
-
-* Fixes and improvements
-
-#### 1.5.0-beta.6
-
-* Fix compatibility issues with official Hysteria2 server and client
-* Fixes and improvements
-* Mark [deprecated features](/deprecated)
-
 #### 1.5.0-beta.3
 
 * Fixes and improvements

docs/configuration/experimental/index.md

@@ -78,7 +78,7 @@ ALWAYS set a secret if RESTful API is listening on 0.0.0.0
 
 #### default_mode
 
-Default mode in clash, `Rule` will be used if empty.
+Default mode in clash, `rule` will be used if empty.
 
 This setting has no direct effect, but can be used in routing and DNS rules via the `clash_mode` rule item.
 

docs/configuration/experimental/index.zh.md

@@ -76,7 +76,7 @@ RESTful API 的密钥（可选）
 
 #### default_mode
 
-Clash 中的默认模式，默认使用 `Rule`。
+Clash 中的默认模式，默认使用 `rule`。
 
 此设置没有直接影响，但可以通过 `clash_mode` 规则项在路由和 DNS 规则中使用。
 

docs/configuration/inbound/hysteria2.md

@@ -25,6 +25,10 @@
 }
 ```
 
+!!! warning "Compatibility issues with the official client"
+
+    The use case of `fastOpen=false` or UDP MTU >= 1200 is not supported when using the official client.
+
 !!! warning ""
 
     QUIC, which is required by Hysteria2 is not included by default, see [Installation](/#installation).

docs/configuration/inbound/hysteria2.zh.md

@@ -25,6 +25,10 @@
 }
 ```
 
+!!! warning "与官方客户端的兼容性问题"
+
+    当使用原始客户端时，不支持 `fastOpen=false` 或者 UDP MTU >= 1200 的用例。
+
 !!! warning ""
 
     默认安装不包含被 Hysteria2 依赖的 QUIC，参阅 [安装](/zh/#_2)。

docs/configuration/index.md

@@ -31,17 +31,11 @@ sing-box uses JSON for configuration files.
 ### Check
 
 ```bash
-sing-box check
+$ sing-box check
 ```
 
 ### Format
 
 ```bash
-sing-box format -w -c config.json -D config_directory
-```
-
-### Merge
-
-```bash
-sing-box merge output.json -c config.json -D config_directory
+$ sing-box format -w
 ```

docs/configuration/index.zh.md

@@ -29,17 +29,11 @@ sing-box 使用 JSON 作为配置文件格式。
 ### 检查
 
 ```bash
-sing-box check
+$ sing-box check
 ```
 
 ### 格式化
 
 ```bash
-sing-box format -w -c config.json -D config_directory
-```
-
-### 合并
-
-```bash
-sing-box merge output.json -c config.json -D config_directory
+$ sing-box format -w
 ```

docs/configuration/outbound/hysteria2.md

@@ -21,6 +21,10 @@
 }
 ```
 
+!!! warning "Compatibility issues with the official server"
+
+    The use case of UDP MTU >= 1200 is not supported when using the official server.
+
 !!! warning ""
 
     QUIC, which is required by Hysteria2 is not included by default, see [Installation](/#installation).

docs/configuration/outbound/hysteria2.zh.md

@@ -21,6 +21,10 @@
 }
 ```
 
+!!! warning "与官方服务器的兼容性问题"
+
+    当使用原始服务器时，不支持 UDP MTU >= 1200 的用例。
+
 !!! warning ""
 
     默认安装不包含被 Hysteria2 依赖的 QUIC，参阅 [安装](/zh/#_2)。

docs/configuration/outbound/selector.md

@@ -10,8 +10,7 @@
     "proxy-b",
     "proxy-c"
   ],
-  "default": "proxy-c",
-  "interrupt_exist_connections": false
+  "default": "proxy-c"
 }
 ```
 
@@ -29,10 +28,4 @@ List of outbound tags to select.
 
 #### default
 
-The default outbound tag. The first outbound will be used if empty.
-
-#### interrupt_exist_connections
-
-Interrupt existing connections when the selected outbound has changed.
-
-Only inbound connections are affected by this setting, internal connections will always be interrupted.
+The default outbound tag. The first outbound will be used if empty.

docs/configuration/outbound/selector.zh.md

@@ -10,8 +10,7 @@
     "proxy-b",
     "proxy-c"
   ],
-  "default": "proxy-c",
-  "interrupt_exist_connections": false
+  "default": "proxy-c"
 }
 ```
 
@@ -30,9 +29,3 @@
 #### default
 
 默认的出站标签。默认使用第一个出站。
-
-#### interrupt_exist_connections
-
-当选定的出站发生更改时，中断现有连接。
-
-仅入站连接受此设置影响，内部连接将始终被中断。

docs/configuration/outbound/urltest.md

@@ -12,8 +12,7 @@
   ],
   "url": "https://www.gstatic.com/generate_204",
   "interval": "1m",
-  "tolerance": 50,
-  "interrupt_exist_connections": false
+  "tolerance": 50
 }
 ```
 
@@ -36,9 +35,3 @@ The test interval. `1m` will be used if empty.
 #### tolerance
 
 The test tolerance in milliseconds. `50` will be used if empty.
-
-#### interrupt_exist_connections
-
-Interrupt existing connections when the selected outbound has changed.
-
-Only inbound connections are affected by this setting, internal connections will always be interrupted.

docs/configuration/outbound/urltest.zh.md

@@ -12,8 +12,7 @@
   ],
   "url": "https://www.gstatic.com/generate_204",
   "interval": "1m",
-  "tolerance": 50,
-  "interrupt_exist_connections": false
+  "tolerance": 50
 }
 ```
 
@@ -36,9 +35,3 @@
 #### tolerance
 
 以毫秒为单位的测试容差。 默认使用 `50`。
-
-#### interrupt_exist_connections
-
-当选定的出站发生更改时，中断现有连接。
-
-仅入站连接受此设置影响，内部连接将始终被中断。

docs/configuration/shared/dns01_challenge.md

@@ -1,31 +0,0 @@
-### Structure
-
-```json
-{
-  "provider": "",
-  
-  ... // Provider Fields
-}
-```
-
-### Provider Fields
-
-#### Alibaba Cloud DNS
-
-```json
-{
-  "provider": "alidns",
-  "access_key_id": "",
-  "access_key_secret": "",
-  "region_id": ""
-}
-```
-
-#### Cloudflare
-
-```json
-{
-  "provider": "cloudflare",
-  "api_token": ""
-}
-```

docs/configuration/shared/dns01_challenge.zh.md

@@ -1,31 +0,0 @@
-### 结构
-
-```json
-{
-  "provider": "",
-  
-  ... // 提供商字段
-}
-```
-
-### 提供商字段
-
-#### Alibaba Cloud DNS
-
-```json
-{
-  "provider": "alidns",
-  "access_key_id": "",
-  "access_key_secret": "",
-  "region_id": ""
-}
-```
-
-#### Cloudflare
-
-```json
-{
-  "provider": "cloudflare",
-  "api_token": ""
-}
-```

docs/configuration/shared/tls.md

@@ -25,8 +25,7 @@
     "external_account": {
       "key_id": "",
       "mac_key": ""
-    },
-    "dns01_challenge": {}
+    }
   },
   "ech": {
     "enabled": false,
@@ -349,12 +348,6 @@ The key identifier.
 
 The MAC key.
 
-#### dns01_challenge
-
-ACME DNS01 challenge field. If configured, other challenge methods will be disabled.
-
-See [DNS01 Challenge Fields](/configuration/shared/dns01_challenge) for details.
-
 ### Reality Fields
 
 !!! warning ""

docs/configuration/shared/tls.zh.md

@@ -25,8 +25,7 @@
     "external_account": {
       "key_id": "",
       "mac_key": ""
-    },
-    "dns01_challenge": {}
+    }
   },
   "ech": {
     "enabled": false,
@@ -340,12 +339,6 @@ EAB（外部帐户绑定）包含将 ACME 帐户绑定或映射到其他已知
 
 MAC 密钥。
 
-#### dns01_challenge
-
-ACME DNS01 验证字段。如果配置，将禁用其他验证方法。
-
-参阅 [DNS01 验证字段](/configuration/shared/dns01_challenge)。
-
 ### Reality 字段
 
 !!! warning ""

docs/deprecated.md

@@ -1,13 +0,0 @@
-# Deprecated Feature List
-
-The following features will be marked deprecated in 1.5.0 and removed entirely in 1.6.0.
-
-#### ShadowsocksR
-
-ShadowsocksR support has never been enabled by default, since the most commonly used proxy sales panel in the
-illegal industry stopped using this protocol, it does not make sense to continue to maintain it.
-
-#### Proxy Protocol
-
-Proxy Protocol is added by Pull Request, has problems, is only used by the backend of HTTP multiplexers such as nginx,
-is intrusive, and is meaningless for proxy purposes.

experimental/libbox/command_conntrack.go

@@ -6,7 +6,7 @@ import (
 	runtimeDebug "runtime/debug"
 	"time"
 
-	"github.com/sagernet/sing-box/common/conntrack"
+	"github.com/sagernet/sing-box/common/dialer/conntrack"
 )
 
 func (c *CommandClient) CloseConnections() error {

experimental/libbox/command_status.go

@@ -6,15 +6,13 @@ import (
 	"runtime"
 	"time"
 
-	"github.com/sagernet/sing-box/common/conntrack"
+	"github.com/sagernet/sing-box/common/dialer/conntrack"
 	"github.com/sagernet/sing-box/experimental/clashapi"
 	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/common/memory"
 )
 
 type StatusMessage struct {
 	Memory           int64
-	MemoryInuse      int64
 	Goroutines       int32
 	ConnectionsIn    int32
 	ConnectionsOut   int32
@@ -26,8 +24,10 @@ type StatusMessage struct {
 }
 
 func (s *CommandServer) readStatus() StatusMessage {
+	var memStats runtime.MemStats
+	runtime.ReadMemStats(&memStats)
 	var message StatusMessage
-	message.Memory = int64(memory.Inuse())
+	message.Memory = int64(memStats.StackInuse + memStats.HeapInuse + memStats.HeapIdle - memStats.HeapReleased)
 	message.Goroutines = int32(runtime.NumGoroutine())
 	message.ConnectionsOut = int32(conntrack.Count())
 

experimental/libbox/memory.go

@@ -4,15 +4,14 @@ import (
 	"math"
 	runtimeDebug "runtime/debug"
 
-	"github.com/sagernet/sing-box/common/conntrack"
+	"github.com/sagernet/sing-box/common/dialer/conntrack"
 )
 
 func SetMemoryLimit(enabled bool) {
-	const memoryLimit = 45 * 1024 * 1024
-	const memoryLimitGo = memoryLimit / 1.5
+	const memoryLimit = 30 * 1024 * 1024
 	if enabled {
 		runtimeDebug.SetGCPercent(10)
-		runtimeDebug.SetMemoryLimit(memoryLimitGo)
+		runtimeDebug.SetMemoryLimit(memoryLimit)
 		conntrack.KillerEnabled = true
 		conntrack.MemoryLimit = memoryLimit
 	} else {

experimental/libbox/profile_import.go

@@ -163,29 +163,25 @@ func DecodeProfileContentRequest(data []byte) (*ProfileContentRequest, error) {
 }
 
 type ProfileContent struct {
-	Name               string
-	Type               int32
-	Config             string
-	RemotePath         string
-	AutoUpdate         bool
-	AutoUpdateInterval int32
-	LastUpdated        int64
+	Name        string
+	Type        int32
+	Config      string
+	RemotePath  string
+	AutoUpdate  bool
+	LastUpdated int64
 }
 
 func (c *ProfileContent) Encode() []byte {
 	buffer := new(bytes.Buffer)
 	buffer.WriteByte(MessageTypeProfileContent)
-	buffer.WriteByte(1)
+	buffer.WriteByte(0)
 	writer := gzip.NewWriter(buffer)
 	rw.WriteVString(writer, c.Name)
 	binary.Write(writer, binary.BigEndian, c.Type)
 	rw.WriteVString(writer, c.Config)
 	if c.Type != ProfileTypeLocal {
 		rw.WriteVString(writer, c.RemotePath)
-	}
-	if c.Type == ProfileTypeRemote {
 		binary.Write(writer, binary.BigEndian, c.AutoUpdate)
-		binary.Write(writer, binary.BigEndian, c.AutoUpdateInterval)
 		binary.Write(writer, binary.BigEndian, c.LastUpdated)
 	}
 	writer.Flush()
@@ -206,8 +202,12 @@ func DecodeProfileContent(data []byte) (*ProfileContent, error) {
 	if err != nil {
 		return nil, err
 	}
-	reader, err = gzip.NewReader(reader)
-	if err != nil {
+	if version == 0 {
+		reader, err = gzip.NewReader(reader)
+		if err != nil {
+			return nil, E.Cause(err, "unsupported profile")
+		}
+	} else {
 		return nil, E.Cause(err, "unsupported profile")
 	}
 	var content ProfileContent
@@ -228,18 +228,10 @@ func DecodeProfileContent(data []byte) (*ProfileContent, error) {
 		if err != nil {
 			return nil, err
 		}
-	}
-	if content.Type == ProfileTypeRemote || (version == 0 && content.Type != ProfileTypeLocal) {
 		err = binary.Read(reader, binary.BigEndian, &content.AutoUpdate)
 		if err != nil {
 			return nil, err
 		}
-		if version >= 1 {
-			err = binary.Read(reader, binary.BigEndian, &content.AutoUpdateInterval)
-			if err != nil {
-				return nil, err
-			}
-		}
 		err = binary.Read(reader, binary.BigEndian, &content.LastUpdated)
 		if err != nil {
 			return nil, err

experimental/libbox/setup.go

@@ -5,8 +5,9 @@ import (
 	"os/user"
 	"strconv"
 
-	"github.com/sagernet/sing-box/common/humanize"
 	C "github.com/sagernet/sing-box/constant"
+
+	"github.com/dustin/go-humanize"
 )
 
 var (
@@ -45,11 +46,7 @@ func Version() string {
 }
 
 func FormatBytes(length int64) string {
-	return humanize.Bytes(uint64(length))
-}
-
-func FormatMemoryBytes(length int64) string {
-	return humanize.MemoryBytes(uint64(length))
+	return humanize.IBytes(uint64(length))
 }
 
 func ProxyDisplayType(proxyType string) string {

go.mod

@@ -8,34 +8,32 @@ require (
 	github.com/caddyserver/certmagic v0.19.2
 	github.com/cloudflare/circl v1.3.3
 	github.com/cretz/bine v0.2.0
+	github.com/dustin/go-humanize v1.0.1
 	github.com/fsnotify/fsnotify v1.6.0
 	github.com/go-chi/chi/v5 v5.0.10
 	github.com/go-chi/cors v1.2.1
 	github.com/go-chi/render v1.0.3
 	github.com/gofrs/uuid/v5 v5.0.0
-	github.com/insomniacslk/dhcp v0.0.0-20230908212754-65c27093e38a
-	github.com/libdns/alidns v1.0.3
-	github.com/libdns/cloudflare v0.1.0
+	github.com/insomniacslk/dhcp v0.0.0-20230906122924-c71a6be05968
 	github.com/logrusorgru/aurora v2.0.3+incompatible
 	github.com/mholt/acmez v1.2.0
-	github.com/miekg/dns v1.1.56
+	github.com/miekg/dns v1.1.55
 	github.com/ooni/go-libtor v1.1.8
 	github.com/oschwald/maxminddb-golang v1.12.0
 	github.com/pires/go-proxyproto v0.7.0
 	github.com/sagernet/cloudflare-tls v0.0.0-20230829051644-4a68352d0c4a
-	github.com/sagernet/gomobile v0.0.0-20230915142329-c6740b6d2950
+	github.com/sagernet/gomobile v0.0.0-20230728014906-3de089147f59
 	github.com/sagernet/gvisor v0.0.0-20230627031050-1ab0276e0dd2
-	github.com/sagernet/quic-go v0.0.0-20230919101909-0cc6c5dcecee
+	github.com/sagernet/quic-go v0.0.0-20230831052420-45809eee2e86
 	github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691
-	github.com/sagernet/sing v0.2.12-0.20230921162020-494f88c9b8bf
-	github.com/sagernet/sing-dns v0.1.10-0.20230921024525-fc3e4c051ccd
-	github.com/sagernet/sing-mux v0.1.3
-	github.com/sagernet/sing-quic v0.1.1-0.20230922040527-541e66a4a16d
-	github.com/sagernet/sing-shadowsocks v0.2.5
-	github.com/sagernet/sing-shadowsocks2 v0.1.4
+	github.com/sagernet/sing v0.2.10-0.20230907044649-03c21c0a1205
+	github.com/sagernet/sing-dns v0.1.9-0.20230824120133-4d5cbceb40c1
+	github.com/sagernet/sing-mux v0.1.3-0.20230907005326-7befbadbf314
+	github.com/sagernet/sing-shadowsocks v0.2.5-0.20230907005610-126234728ca0
+	github.com/sagernet/sing-shadowsocks2 v0.1.4-0.20230907005906-5d2917b29248
 	github.com/sagernet/sing-shadowtls v0.1.4
-	github.com/sagernet/sing-tun v0.1.13-0.20230922035004-b6d323004edd
-	github.com/sagernet/sing-vmess v0.1.8
+	github.com/sagernet/sing-tun v0.1.12-0.20230821065522-7545dc2d5641
+	github.com/sagernet/sing-vmess v0.1.8-0.20230907010359-161fb0ac716b
 	github.com/sagernet/smux v0.0.0-20230312102458-337ec2a5af37
 	github.com/sagernet/tfo-go v0.0.0-20230816093905-5a5c285d44a6
 	github.com/sagernet/utls v0.0.0-20230309024959-6732c2ab36f2
@@ -44,19 +42,20 @@ require (
 	github.com/spf13/cobra v1.7.0
 	github.com/stretchr/testify v1.8.4
 	go.etcd.io/bbolt v1.3.7
-	go.uber.org/zap v1.26.0
+	go.uber.org/zap v1.25.0
 	go4.org/netipx v0.0.0-20230824141953-6213f710f925
 	golang.org/x/crypto v0.13.0
-	golang.org/x/exp v0.0.0-20230905200255-921286631fa9
+	golang.org/x/exp v0.0.0-20230817173708-d852ddb80c63
 	golang.org/x/net v0.15.0
 	golang.org/x/sys v0.12.0
 	golang.zx2c4.com/wireguard/wgctrl v0.0.0-20230429144221-925a1e7659e6
-	google.golang.org/grpc v1.58.1
+	google.golang.org/grpc v1.58.0
 	google.golang.org/protobuf v1.31.0
 	howett.net/plist v1.0.0
 )
 
 //replace github.com/sagernet/sing => ../sing
+
 require (
 	github.com/Dreamacro/protobytes v0.0.0-20230617041236-6500a9f4f158 // indirect
 	github.com/ajg/form v1.5.1 // indirect
@@ -78,7 +77,7 @@ require (
 	github.com/pierrec/lz4/v4 v4.1.14 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/quic-go/qpack v0.4.0 // indirect
-	github.com/quic-go/qtls-go1-20 v0.3.4 // indirect
+	github.com/quic-go/qtls-go1-20 v0.3.3 // indirect
 	github.com/sagernet/go-tun2socks v1.16.12-0.20220818015926-16cb67876a61 // indirect
 	github.com/sagernet/netlink v0.0.0-20220905062125-8043b4a9aa97 // indirect
 	github.com/scjalliance/comshim v0.0.0-20230315213746-5e51f40bd3b9 // indirect
@@ -90,7 +89,7 @@ require (
 	golang.org/x/mod v0.12.0 // indirect
 	golang.org/x/text v0.13.0 // indirect
 	golang.org/x/time v0.3.0 // indirect
-	golang.org/x/tools v0.13.0 // indirect
+	golang.org/x/tools v0.12.1-0.20230815132531-74c255bcf846 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20230711160842-782d3b101e98 // indirect
 	gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect

go.sum

@@ -8,6 +8,7 @@ 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=
 github.com/andybalholm/brotli v1.0.5/go.mod h1:fO7iG3H7G2nSZ7m0zPUDn85XEX2GTukHGRSepvi9Eig=
+github.com/benbjohnson/clock v1.3.0 h1:ip6w0uFQkncKQ979AypyG0ER7mqUSBdKLOgAle/AT8A=
 github.com/caddyserver/certmagic v0.19.2 h1:HZd1AKLx4592MalEGQS39DKs2ZOAJCEM/xYPMQ2/ui0=
 github.com/caddyserver/certmagic v0.19.2/go.mod h1:fsL01NomQ6N+kE2j37ZCnig2MFosG+MIO4ztnmG/zz8=
 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
@@ -22,6 +23,8 @@ github.com/cretz/bine v0.2.0/go.mod h1:WU4o9QR9wWp8AVKtTM1XD5vUHkEqnf2vVSo6dBqbe
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
+github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
 github.com/fsnotify/fsnotify v1.6.0 h1:n+5WquG0fcWoWp6xPWfHdbskMCQaFnG6PfBrh1Ky4HY=
 github.com/fsnotify/fsnotify v1.6.0/go.mod h1:sl3t1tCWJFWoRz9R8WJCbQihKKwmorjAbSClcnxKAGw=
 github.com/go-chi/chi/v5 v5.0.10 h1:rLz5avzKpjqxrYwXNfmjkrYYXOyLJd37pz53UFHC6vk=
@@ -51,8 +54,8 @@ github.com/hashicorp/yamux v0.1.1/go.mod h1:CtWFDAQgb7dxtzFs4tWbplKIe2jSi3+5vKbg
 github.com/ianlancetaylor/demangle v0.0.0-20200824232613-28f6c0f3b639/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
-github.com/insomniacslk/dhcp v0.0.0-20230908212754-65c27093e38a h1:S33o3djA1nPRd+d/bf7jbbXytXuK/EoXow7+aa76grQ=
-github.com/insomniacslk/dhcp v0.0.0-20230908212754-65c27093e38a/go.mod h1:zmdm3sTSDP3vOOX3CEWRkkRHtKr1DxBx+J1OQFoDQQs=
+github.com/insomniacslk/dhcp v0.0.0-20230906122924-c71a6be05968 h1:uBiv5/8x42J7myumCdFuDOc5HnEXRK6eOtefwvE6+TQ=
+github.com/insomniacslk/dhcp v0.0.0-20230906122924-c71a6be05968/go.mod h1:zmdm3sTSDP3vOOX3CEWRkkRHtKr1DxBx+J1OQFoDQQs=
 github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
 github.com/josharian/native v1.0.1-0.20221213033349-c1e37c09b531/go.mod h1:7X/raswPFr05uY3HiLlYeyQntB6OO7E/d2Cu7qoaN2w=
 github.com/josharian/native v1.1.0 h1:uuaP0hAbW7Y4l0ZRQ6C9zfb7Mg1mbFKry/xzDAfmtLA=
@@ -65,19 +68,14 @@ github.com/klauspost/cpuid/v2 v2.2.5/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZY
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
-github.com/libdns/alidns v1.0.3 h1:LFHuGnbseq5+HCeGa1aW8awyX/4M2psB9962fdD2+yQ=
-github.com/libdns/alidns v1.0.3/go.mod h1:e18uAG6GanfRhcJj6/tps2rCMzQJaYVcGKT+ELjdjGE=
-github.com/libdns/cloudflare v0.1.0 h1:93WkJaGaiXCe353LHEP36kAWCUw0YjFqwhkBkU2/iic=
-github.com/libdns/cloudflare v0.1.0/go.mod h1:a44IP6J1YH6nvcNl1PverfJviADgXUnsozR3a7vBKN8=
-github.com/libdns/libdns v0.2.0/go.mod h1:yQCXzk1lEZmmCPa857bnk4TsOiqYasqpyOEeSObbb40=
 github.com/libdns/libdns v0.2.1 h1:Wu59T7wSHRgtA0cfxC+n1c/e+O3upJGWytknkmFEDis=
 github.com/libdns/libdns v0.2.1/go.mod h1:yQCXzk1lEZmmCPa857bnk4TsOiqYasqpyOEeSObbb40=
 github.com/logrusorgru/aurora v2.0.3+incompatible h1:tOpm7WcpBTn4fjmVfgpQq0EfczGlG91VSDkswnjF5A8=
 github.com/logrusorgru/aurora v2.0.3+incompatible/go.mod h1:7rIyQOR62GCctdiQpZ/zOJlFyk6y+94wXzv6RNZgaR4=
 github.com/mholt/acmez v1.2.0 h1:1hhLxSgY5FvH5HCnGUuwbKY2VQVo8IU7rxXKSnZ7F30=
 github.com/mholt/acmez v1.2.0/go.mod h1:VT9YwH1xgNX1kmYY89gY8xPJC84BFAisjo8Egigt4kE=
-github.com/miekg/dns v1.1.56 h1:5imZaSeoRNvpM9SzWNhEcP9QliKiz20/dA2QabIGVnE=
-github.com/miekg/dns v1.1.56/go.mod h1:cRm6Oo2C8TY9ZS/TqsSrseAcncm74lfK5G+ikN2SWWY=
+github.com/miekg/dns v1.1.55 h1:GoQ4hpsj0nFLYe+bWiCToyrBEJXkQfOOIvFGFy0lEgo=
+github.com/miekg/dns v1.1.55/go.mod h1:uInx36IzPl7FYnDcMeVWxj9byh7DutNykX4G9Sj60FY=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
 github.com/onsi/ginkgo/v2 v2.9.5 h1:+6Hr4uxzP4XIUyAkg61dWBw8lb/gc4/X5luuxN/EC+Q=
@@ -95,43 +93,41 @@ github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZb
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/quic-go/qpack v0.4.0 h1:Cr9BXA1sQS2SmDUWjSofMPNKmvF6IiIfDRmgU0w1ZCo=
 github.com/quic-go/qpack v0.4.0/go.mod h1:UZVnYIfi5GRk+zI9UMaCPsmZ2xKJP7XBUvVyT1Knj9A=
-github.com/quic-go/qtls-go1-20 v0.3.4 h1:MfFAPULvst4yoMgY9QmtpYmfij/em7O8UUi+bNVm7Cg=
-github.com/quic-go/qtls-go1-20 v0.3.4/go.mod h1:X9Nh97ZL80Z+bX/gUXMbipO6OxdiDi58b/fMC9mAL+k=
+github.com/quic-go/qtls-go1-20 v0.3.3 h1:17/glZSLI9P9fDAeyCHBFSWSqJcwx1byhLwP5eUIDCM=
+github.com/quic-go/qtls-go1-20 v0.3.3/go.mod h1:X9Nh97ZL80Z+bX/gUXMbipO6OxdiDi58b/fMC9mAL+k=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/sagernet/cloudflare-tls v0.0.0-20230829051644-4a68352d0c4a h1:wZHruBxZCsQLXHAozWpnJBL3wJ/XufDpz0qKtgpSnA4=
 github.com/sagernet/cloudflare-tls v0.0.0-20230829051644-4a68352d0c4a/go.mod h1:dNV1ZP9y3qx5ltULeKaQZTZWTLHflgW5DES+Ses7cMI=
 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 v0.0.0-20230915142329-c6740b6d2950 h1:hUz/2mJLgi7l2H36JGpDY+jou9FmI6kAm0ZkU+xPpgE=
-github.com/sagernet/gomobile v0.0.0-20230915142329-c6740b6d2950/go.mod h1:5YE39YkJkCcMsfq1jMKkjsrM2GfBoF9JVWnvU89hmvU=
+github.com/sagernet/gomobile v0.0.0-20230728014906-3de089147f59 h1:vN4divY6LYHcYmiTsCHNPmGZtEsEKJzh81LyvgAQfEQ=
+github.com/sagernet/gomobile v0.0.0-20230728014906-3de089147f59/go.mod h1:5YE39YkJkCcMsfq1jMKkjsrM2GfBoF9JVWnvU89hmvU=
 github.com/sagernet/gvisor v0.0.0-20230627031050-1ab0276e0dd2 h1:dnkKrzapqtAwjTSWt6hdPrARORfoYvuUczynvRLrueo=
 github.com/sagernet/gvisor v0.0.0-20230627031050-1ab0276e0dd2/go.mod h1:1JUiV7nGuf++YFm9eWZ8q2lrwHmhcUGzptMl/vL1+LA=
 github.com/sagernet/netlink v0.0.0-20220905062125-8043b4a9aa97 h1:iL5gZI3uFp0X6EslacyapiRz7LLSJyr4RajF/BhMVyE=
 github.com/sagernet/netlink v0.0.0-20220905062125-8043b4a9aa97/go.mod h1:xLnfdiJbSp8rNqYEdIW/6eDO4mVoogml14Bh2hSiFpM=
-github.com/sagernet/quic-go v0.0.0-20230919101909-0cc6c5dcecee h1:ykuhl9jCS638N+jw1vC9AvT9bbQn6xRNScP2FWPV9dM=
-github.com/sagernet/quic-go v0.0.0-20230919101909-0cc6c5dcecee/go.mod h1:0CfhWwZAeXGYM9+Nkkw1zcQtFHQC8KWjbpeDv7pu8iw=
+github.com/sagernet/quic-go v0.0.0-20230831052420-45809eee2e86 h1:g4TEg9inAtA1FDTXpNrvmx72nN5mTOLQrJce6fVxF9g=
+github.com/sagernet/quic-go v0.0.0-20230831052420-45809eee2e86/go.mod h1:O4Cj7TmMOvqD6S0XMqJRZfcYzA3m0H0ARbbaJFB0p7A=
 github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691 h1:5Th31OC6yj8byLGkEnIYp6grlXfo1QYUfiYFGjewIdc=
 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 v0.2.12-0.20230921162020-494f88c9b8bf h1:O8jjYmCExZbsgmqZEHyn05C/7ZzD0SLTG21QNcYoP2Q=
-github.com/sagernet/sing v0.2.12-0.20230921162020-494f88c9b8bf/go.mod h1:GQ673iPfUnkbK/dIPkfd1Xh1MjOGo36gkl/mkiHY7Jg=
-github.com/sagernet/sing-dns v0.1.10-0.20230921024525-fc3e4c051ccd h1:czixTtZijtdR4bMQYT/0LZy1x5ouiaDBi742YE0zudU=
-github.com/sagernet/sing-dns v0.1.10-0.20230921024525-fc3e4c051ccd/go.mod h1:y76ieq1uilVg6fe5wJWqM2oKjdrn4q0lY1nwAZ86ok0=
-github.com/sagernet/sing-mux v0.1.3 h1:fAf7PZa2A55mCeh0KKM02f1k2Y4vEmxuZZ/51ahkkLA=
-github.com/sagernet/sing-mux v0.1.3/go.mod h1:wGeIeiiFLx4HUM5LAg65wrNZ/X1muOimqK0PEhNbPi0=
-github.com/sagernet/sing-quic v0.1.1-0.20230922040527-541e66a4a16d h1:CzdkTdId4Pa0oY7UrhMIiMh+cY01Rh+B3BXMXLt7REY=
-github.com/sagernet/sing-quic v0.1.1-0.20230922040527-541e66a4a16d/go.mod h1:Inf4N8ihB4+lB5ZDo++GXbq4rKusL7f1s67v7IVeL2I=
-github.com/sagernet/sing-shadowsocks v0.2.5 h1:qxIttos4xu6ii7MTVJYA8EFQR7Q3KG6xMqmLJIFtBaY=
-github.com/sagernet/sing-shadowsocks v0.2.5/go.mod h1:MGWGkcU2xW2G2mfArT9/QqpVLOGU+dBaahZCtPHdt7A=
-github.com/sagernet/sing-shadowsocks2 v0.1.4 h1:vht2M8t3m5DTgXR2j24KbYOygG5aOp+MUhpQnAux728=
-github.com/sagernet/sing-shadowsocks2 v0.1.4/go.mod h1:Mgdee99NxxNd5Zld3ixIs18yVs4x2dI2VTDDE1N14Wc=
+github.com/sagernet/sing v0.2.10-0.20230907044649-03c21c0a1205 h1:U/OwMlCH1XFjrDrw5BESGxGsnynT6nDnHvNI9Xv0U78=
+github.com/sagernet/sing v0.2.10-0.20230907044649-03c21c0a1205/go.mod h1:9uOZwWkhT2Z2WldolLxX34s+1svAX4i4vvz5hy8u1MA=
+github.com/sagernet/sing-dns v0.1.9-0.20230824120133-4d5cbceb40c1 h1:5w+jXz8y/8UQAxO74TjftN5okYkpg5mGvVxXunlKdqI=
+github.com/sagernet/sing-dns v0.1.9-0.20230824120133-4d5cbceb40c1/go.mod h1:Kg98PBJEg/08jsNFtmZWmPomhskn9Ausn50ecNm4M+8=
+github.com/sagernet/sing-mux v0.1.3-0.20230907005326-7befbadbf314 h1:P5+NZGMH8KSI3L8lKw1znxdRi0tIpWbGYjmv8GrFHrQ=
+github.com/sagernet/sing-mux v0.1.3-0.20230907005326-7befbadbf314/go.mod h1:TKxqIvfQQgd36jp2tzsPavGjYTVZilV+atip1cssjIY=
+github.com/sagernet/sing-shadowsocks v0.2.5-0.20230907005610-126234728ca0 h1:9wHYWxH+fcs01PM2+DylA8LNNY3ElnZykQo9rysng8U=
+github.com/sagernet/sing-shadowsocks v0.2.5-0.20230907005610-126234728ca0/go.mod h1:80fNKP0wnqlu85GZXV1H1vDPC/2t+dQbFggOw4XuFUM=
+github.com/sagernet/sing-shadowsocks2 v0.1.4-0.20230907005906-5d2917b29248 h1:JTFfy/LDmVFEK4KZJEujmC1iO8+aoF4unYhhZZRzRq4=
+github.com/sagernet/sing-shadowsocks2 v0.1.4-0.20230907005906-5d2917b29248/go.mod h1:DOhJc/cLeqRv0wuePrQso+iUmDxOnWF4eT/oMcRzYFw=
 github.com/sagernet/sing-shadowtls v0.1.4 h1:aTgBSJEgnumzFenPvc+kbD9/W0PywzWevnVpEx6Tw3k=
 github.com/sagernet/sing-shadowtls v0.1.4/go.mod h1:F8NBgsY5YN2beQavdgdm1DPlhaKQlaL6lpDdcBglGK4=
-github.com/sagernet/sing-tun v0.1.13-0.20230922035004-b6d323004edd h1:R7DOvvQfYMmsdIr43wCQGHregky4/FGcvOEcIuxEt5w=
-github.com/sagernet/sing-tun v0.1.13-0.20230922035004-b6d323004edd/go.mod h1:7IGpNWXuP0TnxkUiGJRJjewFLquTOhLw1RtfNgxzjJI=
-github.com/sagernet/sing-vmess v0.1.8 h1:XVWad1RpTy9b5tPxdm5MCU8cGfrTGdR8qCq6HV2aCNc=
-github.com/sagernet/sing-vmess v0.1.8/go.mod h1:vhx32UNzTDUkNwOyIjcZQohre1CaytquC5mPplId8uA=
+github.com/sagernet/sing-tun v0.1.12-0.20230821065522-7545dc2d5641 h1:a8lktNrCWZJisB+nPraW+qB73ZofgPtGmlfqNYcO79g=
+github.com/sagernet/sing-tun v0.1.12-0.20230821065522-7545dc2d5641/go.mod h1:+YImslQMLgMQcVgZZ9IK4ue1o/605VSU90amHUcp4hA=
+github.com/sagernet/sing-vmess v0.1.8-0.20230907010359-161fb0ac716b h1:2ezfJtH5JosiEwJhVa+rimQ6ps/t2+7h+mOzMoiaZnA=
+github.com/sagernet/sing-vmess v0.1.8-0.20230907010359-161fb0ac716b/go.mod h1:1qkC1L1T2sxnS/NuO6HU72S8TkltV+EXoKGR29m/Yss=
 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 v0.0.0-20230816093905-5a5c285d44a6 h1:Px+hN4Vzgx+iCGVnWH5A8eR7JhNnIV3rGQmBxA7cw6Q=
@@ -169,16 +165,16 @@ go.etcd.io/bbolt v1.3.7/go.mod h1:N9Mkw9X8x5fupy0IKsmuqVtoGDyxsaDlbk4Rd05IAQw=
 go.uber.org/goleak v1.2.0 h1:xqgm/S+aQvhWFTtR0XK3Jvg7z8kGV8P4X14IzwN3Eqk=
 go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
 go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
-go.uber.org/zap v1.26.0 h1:sI7k6L95XOKS281NhVKOFCUNIvv9e0w4BF8N3u+tCRo=
-go.uber.org/zap v1.26.0/go.mod h1:dtElttAiwGvoJ/vj4IwHBS/gXsEu/pZ50mUIRWuG0so=
+go.uber.org/zap v1.25.0 h1:4Hvk6GtkucQ790dqmj7l1eEnRdKm3k3ZUrUMS2d5+5c=
+go.uber.org/zap v1.25.0/go.mod h1:JIAUzQIH94IC4fOJQm7gMmBJP5k7wQfdcnYdPoEXJYk=
 go4.org/netipx v0.0.0-20230824141953-6213f710f925 h1:eeQDDVKFkx0g4Hyy8pHgmZaK0EqB4SD6rvKbUdN3ziQ=
 go4.org/netipx v0.0.0-20230824141953-6213f710f925/go.mod h1:PLyyIXexvUFg3Owu6p/WfdlivPbZJsZdgWZlrGope/Y=
 golang.org/x/crypto v0.0.0-20190404164418-38d8ce5564a5/go.mod h1:WFFai1msRO1wXaEeE5yQxYXgSfI8pQAWXbQop6sCtWE=
 golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a/go.mod h1:P+XmwS30IXTQdn5tA2iutPOUgjI07+tq3H3K9MVA1s8=
 golang.org/x/crypto v0.13.0 h1:mvySKfSWJ+UKUii46M40LOvyWfN0s2U+46/jDd0e6Ck=
 golang.org/x/crypto v0.13.0/go.mod h1:y6Z2r+Rw4iayiXXAIxJIDAJ1zMW4yaTpebo8fPOliYc=
-golang.org/x/exp v0.0.0-20230905200255-921286631fa9 h1:GoHiUyI/Tp2nVkLI2mCxVkOjsbSXD66ic0XW0js0R9g=
-golang.org/x/exp v0.0.0-20230905200255-921286631fa9/go.mod h1:S2oDrQGGwySpoQPVqRShND87VCbxmc6bL1Yd2oYrm6k=
+golang.org/x/exp v0.0.0-20230817173708-d852ddb80c63 h1:m64FZMko/V45gv0bNmrNYoDEq8U5YUhetc9cBWKS1TQ=
+golang.org/x/exp v0.0.0-20230817173708-d852ddb80c63/go.mod h1:0v4NqG35kSWCMzLaMeX+IQrlSnVE/bqGSyC2cz/9Le8=
 golang.org/x/mod v0.12.0 h1:rmsUpXtvNzj340zd98LZ4KntptpfRHwpFOHG188oHXc=
 golang.org/x/mod v0.12.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
@@ -207,15 +203,15 @@ golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/time v0.3.0 h1:rg5rLMjNzMS1RkNLzCG38eapWhnYLFYXDXj2gOlr8j4=
 golang.org/x/time v0.3.0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.13.0 h1:Iey4qkscZuv0VvIt8E0neZjtPVQFSc870HQ448QgEmQ=
-golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58=
+golang.org/x/tools v0.12.1-0.20230815132531-74c255bcf846 h1:Vve/L0v7CXXuxUmaMGIEK/dEeq7uiqb5qBgQrZzIE7E=
+golang.org/x/tools v0.12.1-0.20230815132531-74c255bcf846/go.mod h1:Sc0INKfu04TlqNoRA1hgpFZbhYXHPr4V5DzpSBTPqQM=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.zx2c4.com/wireguard/wgctrl v0.0.0-20230429144221-925a1e7659e6 h1:CawjfCvYQH2OU3/TnxLx97WDSUDRABfT18pCOYwc2GE=
 golang.zx2c4.com/wireguard/wgctrl v0.0.0-20230429144221-925a1e7659e6/go.mod h1:3rxYc4HtVcSG9gVaTs2GEBdehh+sYPOwKtyUWEOTb80=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20230711160842-782d3b101e98 h1:bVf09lpb+OJbByTj913DRJioFFAjf/ZGxEz7MajTp2U=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20230711160842-782d3b101e98/go.mod h1:TUfxEVdsvPg18p6AslUXFoLdpED4oBnGwyqk3dV1XzM=
-google.golang.org/grpc v1.58.1 h1:OL+Vz23DTtrrldqHK49FUOPHyY75rvFqJfXC84NYW58=
-google.golang.org/grpc v1.58.1/go.mod h1:tgX3ZQDlNJGU96V6yHh1T/JeoBQ2TXdr43YbYSsCJk0=
+google.golang.org/grpc v1.58.0 h1:32JY8YpPMSR45K+c3o6b8VL73V+rR8k+DeMIr4vRH8o=
+google.golang.org/grpc v1.58.0/go.mod h1:tgX3ZQDlNJGU96V6yHh1T/JeoBQ2TXdr43YbYSsCJk0=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=

inbound/default.go

@@ -99,16 +99,14 @@ func (a *myInboundAdapter) Start() error {
 		} else {
 			listenAddrString = listenAddr.String()
 		}
-		var systemProxy settings.SystemProxy
-		systemProxy, err = settings.NewSystemProxy(a.ctx, M.ParseSocksaddrHostPort(listenAddrString, listenPort), a.protocol == C.TypeMixed)
+		a.systemProxy, err = settings.NewSystemProxy(a.ctx, M.ParseSocksaddrHostPort(listenAddrString, listenPort), a.protocol == C.TypeMixed)
 		if err != nil {
 			return E.Cause(err, "initialize system proxy")
 		}
-		err = systemProxy.Enable()
+		err = a.systemProxy.Enable()
 		if err != nil {
 			return E.Cause(err, "set system proxy")
 		}
-		a.systemProxy = systemProxy
 	}
 	return nil
 }

inbound/default_tcp.go

@@ -35,7 +35,7 @@ func (a *myInboundAdapter) ListenTCP() (net.Listener, error) {
 		a.logger.Info("tcp server started at ", tcpListener.Addr())
 	}
 	if a.listenOptions.ProxyProtocol {
-		a.logger.Warn("Proxy Protocol is deprecated, see https://sing-box.sagernet.org/deprecated")
+		a.logger.Debug("proxy protocol enabled")
 		tcpListener = &proxyproto.Listener{Listener: tcpListener, AcceptNoHeader: a.listenOptions.ProxyProtocolAcceptNoHeader}
 	}
 	a.tcpListener = tcpListener

inbound/hysteria.go

@@ -7,14 +7,14 @@ import (
 	"sync"
 
 	"github.com/sagernet/quic-go"
+	"github.com/sagernet/quic-go/congestion"
 	"github.com/sagernet/sing-box/adapter"
+	"github.com/sagernet/sing-box/common/qtls"
 	"github.com/sagernet/sing-box/common/tls"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing-box/transport/hysteria"
-	"github.com/sagernet/sing-quic"
-	hyCC "github.com/sagernet/sing-quic/hysteria2/congestion"
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/auth"
 	E "github.com/sagernet/sing/common/exceptions"
@@ -36,7 +36,7 @@ type Hysteria struct {
 	xplusKey     []byte
 	sendBPS      uint64
 	recvBPS      uint64
-	listener     qtls.Listener
+	listener     qtls.QUICListener
 	udpAccess    sync.RWMutex
 	udpSessionId uint32
 	udpSessions  map[uint32]chan *hysteria.UDPMessage
@@ -221,7 +221,7 @@ func (h *Hysteria) accept(ctx context.Context, conn quic.Connection) error {
 	if err != nil {
 		return err
 	}
-	conn.SetCongestionControl(hyCC.NewBrutalSender(serverSendBPS))
+	conn.SetCongestionControl(hysteria.NewBrutalSender(congestion.ByteCount(serverSendBPS)))
 	go h.udpRecvLoop(conn)
 	for {
 		var stream quic.Stream

inbound/hysteria2.go

@@ -14,8 +14,7 @@ import (
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing-box/transport/hysteria"
-	"github.com/sagernet/sing-quic/hysteria2"
+	"github.com/sagernet/sing-box/transport/hysteria2"
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/auth"
 	E "github.com/sagernet/sing/common/exceptions"
@@ -26,9 +25,8 @@ var _ adapter.Inbound = (*Hysteria2)(nil)
 
 type Hysteria2 struct {
 	myInboundAdapter
-	tlsConfig    tls.ServerConfig
-	service      *hysteria2.Service[int]
-	userNameList []string
+	tlsConfig tls.ServerConfig
+	server    *hysteria2.Server
 }
 
 func NewHysteria2(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.Hysteria2InboundOptions) (*Hysteria2, error) {
@@ -86,13 +84,16 @@ func NewHysteria2(ctx context.Context, router adapter.Router, logger log.Context
 		},
 		tlsConfig: tlsConfig,
 	}
-	service, err := hysteria2.NewService[int](hysteria2.ServiceOptions{
-		Context:               ctx,
-		Logger:                logger,
-		SendBPS:               uint64(options.UpMbps * hysteria.MbpsToBps),
-		ReceiveBPS:            uint64(options.DownMbps * hysteria.MbpsToBps),
-		SalamanderPassword:    salamanderPassword,
-		TLSConfig:             tlsConfig,
+	server, err := hysteria2.NewServer(hysteria2.ServerOptions{
+		Context:            ctx,
+		Logger:             logger,
+		SendBPS:            uint64(options.UpMbps * 1024 * 1024),
+		ReceiveBPS:         uint64(options.DownMbps * 1024 * 1024),
+		SalamanderPassword: salamanderPassword,
+		TLSConfig:          tlsConfig,
+		Users: common.Map(options.Users, func(it option.Hysteria2User) hysteria2.User {
+			return hysteria2.User(it)
+		}),
 		IgnoreClientBandwidth: options.IgnoreClientBandwidth,
 		Handler:               adapter.NewUpstreamHandler(adapter.InboundContext{}, inbound.newConnection, inbound.newPacketConnection, nil),
 		MasqueradeHandler:     masqueradeHandler,
@@ -100,17 +101,7 @@ func NewHysteria2(ctx context.Context, router adapter.Router, logger log.Context
 	if err != nil {
 		return nil, err
 	}
-	userList := make([]int, 0, len(options.Users))
-	userNameList := make([]string, 0, len(options.Users))
-	userPasswordList := make([]string, 0, len(options.Users))
-	for index, user := range options.Users {
-		userList = append(userList, index)
-		userNameList = append(userNameList, user.Name)
-		userPasswordList = append(userPasswordList, user.Password)
-	}
-	service.UpdateUsers(userList, userPasswordList)
-	inbound.service = service
-	inbound.userNameList = userNameList
+	inbound.server = server
 	return inbound, nil
 }
 
@@ -118,20 +109,14 @@ func (h *Hysteria2) newConnection(ctx context.Context, conn net.Conn, metadata a
 	ctx = log.ContextWithNewID(ctx)
 	h.logger.InfoContext(ctx, "inbound connection to ", metadata.Destination)
 	metadata = h.createMetadata(conn, metadata)
-	userID, _ := auth.UserFromContext[int](ctx)
-	if userName := h.userNameList[userID]; userName != "" {
-		metadata.User = userName
-	}
+	metadata.User, _ = auth.UserFromContext[string](ctx)
 	return h.router.RouteConnection(ctx, conn, metadata)
 }
 
 func (h *Hysteria2) newPacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext) error {
 	ctx = log.ContextWithNewID(ctx)
 	metadata = h.createPacketMetadata(conn, metadata)
-	userID, _ := auth.UserFromContext[int](ctx)
-	if userName := h.userNameList[userID]; userName != "" {
-		metadata.User = userName
-	}
+	metadata.User, _ = auth.UserFromContext[string](ctx)
 	h.logger.InfoContext(ctx, "inbound packet connection to ", metadata.Destination)
 	return h.router.RoutePacketConnection(ctx, conn, metadata)
 }
@@ -147,13 +132,13 @@ func (h *Hysteria2) Start() error {
 	if err != nil {
 		return err
 	}
-	return h.service.Start(packetConn)
+	return h.server.Start(packetConn)
 }
 
 func (h *Hysteria2) Close() error {
 	return common.Close(
 		&h.myInboundAdapter,
 		h.tlsConfig,
-		common.PtrOrNil(h.service),
+		common.PtrOrNil(h.server),
 	)
 }

inbound/naive_quic.go

@@ -5,7 +5,7 @@ package inbound
 import (
 	"github.com/sagernet/quic-go"
 	"github.com/sagernet/quic-go/http3"
-	"github.com/sagernet/sing-quic"
+	"github.com/sagernet/sing-box/common/qtls"
 	E "github.com/sagernet/sing/common/exceptions"
 )
 

inbound/tuic.go

@@ -12,7 +12,7 @@ import (
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing-quic/tuic"
+	"github.com/sagernet/sing-box/transport/tuic"
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/auth"
 	E "github.com/sagernet/sing/common/exceptions"
@@ -25,9 +25,8 @@ var _ adapter.Inbound = (*TUIC)(nil)
 
 type TUIC struct {
 	myInboundAdapter
-	tlsConfig    tls.ServerConfig
-	server       *tuic.Service[int]
-	userNameList []string
+	server    *tuic.Server
+	tlsConfig tls.ServerConfig
 }
 
 func NewTUIC(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.TUICInboundOptions) (*TUIC, error) {
@@ -39,6 +38,17 @@ func NewTUIC(ctx context.Context, router adapter.Router, logger log.ContextLogge
 	if err != nil {
 		return nil, err
 	}
+	var users []tuic.User
+	for index, user := range options.Users {
+		if user.UUID == "" {
+			return nil, E.New("missing uuid for user ", index)
+		}
+		userUUID, err := uuid.FromString(user.UUID)
+		if err != nil {
+			return nil, E.Cause(err, "invalid uuid for user ", index)
+		}
+		users = append(users, tuic.User{Name: user.Name, UUID: userUUID, Password: user.Password})
+	}
 	inbound := &TUIC{
 		myInboundAdapter: myInboundAdapter{
 			protocol:      C.TypeTUIC,
@@ -50,10 +60,11 @@ func NewTUIC(ctx context.Context, router adapter.Router, logger log.ContextLogge
 			listenOptions: options.ListenOptions,
 		},
 	}
-	service, err := tuic.NewService[int](tuic.ServiceOptions{
+	server, err := tuic.NewServer(tuic.ServerOptions{
 		Context:           ctx,
 		Logger:            logger,
 		TLSConfig:         tlsConfig,
+		Users:             users,
 		CongestionControl: options.CongestionControl,
 		AuthTimeout:       time.Duration(options.AuthTimeout),
 		ZeroRTTHandshake:  options.ZeroRTTHandshake,
@@ -63,26 +74,7 @@ func NewTUIC(ctx context.Context, router adapter.Router, logger log.ContextLogge
 	if err != nil {
 		return nil, err
 	}
-	var userList []int
-	var userNameList []string
-	var userUUIDList [][16]byte
-	var userPasswordList []string
-	for index, user := range options.Users {
-		if user.UUID == "" {
-			return nil, E.New("missing uuid for user ", index)
-		}
-		userUUID, err := uuid.FromString(user.UUID)
-		if err != nil {
-			return nil, E.Cause(err, "invalid uuid for user ", index)
-		}
-		userList = append(userList, index)
-		userNameList = append(userNameList, user.Name)
-		userUUIDList = append(userUUIDList, userUUID)
-		userPasswordList = append(userPasswordList, user.Password)
-	}
-	service.UpdateUsers(userList, userUUIDList, userPasswordList)
-	inbound.server = service
-	inbound.userNameList = userNameList
+	inbound.server = server
 	return inbound, nil
 }
 
@@ -90,20 +82,14 @@ func (h *TUIC) newConnection(ctx context.Context, conn net.Conn, metadata adapte
 	ctx = log.ContextWithNewID(ctx)
 	h.logger.InfoContext(ctx, "inbound connection to ", metadata.Destination)
 	metadata = h.createMetadata(conn, metadata)
-	userID, _ := auth.UserFromContext[int](ctx)
-	if userName := h.userNameList[userID]; userName != "" {
-		metadata.User = userName
-	}
+	metadata.User, _ = auth.UserFromContext[string](ctx)
 	return h.router.RouteConnection(ctx, conn, metadata)
 }
 
 func (h *TUIC) newPacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext) error {
 	ctx = log.ContextWithNewID(ctx)
 	metadata = h.createPacketMetadata(conn, metadata)
-	userID, _ := auth.UserFromContext[int](ctx)
-	if userName := h.userNameList[userID]; userName != "" {
-		metadata.User = userName
-	}
+	metadata.User, _ = auth.UserFromContext[string](ctx)
 	h.logger.InfoContext(ctx, "inbound packet connection to ", metadata.Destination)
 	return h.router.RoutePacketConnection(ctx, conn, metadata)
 }

mkdocs.yml

@@ -30,10 +30,9 @@ theme:
     - navigation.sections
     - header.autohide
 nav:
-  - Home:
+  - Getting Started:
       - index.md
       - Features: features.md
-      - Deprecated: deprecated.md
       - Support: support.md
       - Change Log: changelog.md
   - Installation:
@@ -71,7 +70,6 @@ nav:
           - Listen Fields: configuration/shared/listen.md
           - Dial Fields: configuration/shared/dial.md
           - TLS: configuration/shared/tls.md
-          - DNS01 Challenge Fields: configuration/shared/dns01_challenge.md
           - Multiplex: configuration/shared/multiplex.md
           - V2Ray Transport: configuration/shared/v2ray-transport.md
           - UDP over TCP: configuration/shared/udp-over-tcp.md
@@ -194,7 +192,6 @@ plugins:
           Shared: 通用
           Listen Fields: 监听字段
           Dial Fields: 拨号字段
-          DNS01 Challenge Fields: DNS01 验证字段
           Multiplex: 多路复用
           V2Ray Transport: V2Ray 传输层
 

option/clash.go

@@ -17,15 +17,13 @@ type ClashAPIOptions struct {
 }
 
 type SelectorOutboundOptions struct {
-	Outbounds                 []string `json:"outbounds"`
-	Default                   string   `json:"default,omitempty"`
-	InterruptExistConnections bool     `json:"interrupt_exist_connections,omitempty"`
+	Outbounds []string `json:"outbounds"`
+	Default   string   `json:"default,omitempty"`
 }
 
 type URLTestOutboundOptions struct {
-	Outbounds                 []string `json:"outbounds"`
-	URL                       string   `json:"url,omitempty"`
-	Interval                  Duration `json:"interval,omitempty"`
-	Tolerance                 uint16   `json:"tolerance,omitempty"`
-	InterruptExistConnections bool     `json:"interrupt_exist_connections,omitempty"`
+	Outbounds []string `json:"outbounds"`
+	URL       string   `json:"url,omitempty"`
+	Interval  Duration `json:"interval,omitempty"`
+	Tolerance uint16   `json:"tolerance,omitempty"`
 }

option/debug.go

@@ -3,7 +3,7 @@ package option
 import (
 	"encoding/json"
 
-	"github.com/sagernet/sing-box/common/humanize"
+	"github.com/dustin/go-humanize"
 )
 
 type DebugOptions struct {
@@ -13,21 +13,21 @@ type DebugOptions struct {
 	MaxThreads   *int        `json:"max_threads,omitempty"`
 	PanicOnFault *bool       `json:"panic_on_fault,omitempty"`
 	TraceBack    string      `json:"trace_back,omitempty"`
-	MemoryLimit  MemoryBytes `json:"memory_limit,omitempty"`
+	MemoryLimit  BytesLength `json:"memory_limit,omitempty"`
 	OOMKiller    *bool       `json:"oom_killer,omitempty"`
 }
 
-type MemoryBytes uint64
+type BytesLength int64
 
-func (l MemoryBytes) MarshalJSON() ([]byte, error) {
-	return json.Marshal(humanize.MemoryBytes(uint64(l)))
+func (l BytesLength) MarshalJSON() ([]byte, error) {
+	return json.Marshal(humanize.IBytes(uint64(l)))
 }
 
-func (l *MemoryBytes) UnmarshalJSON(bytes []byte) error {
+func (l *BytesLength) UnmarshalJSON(bytes []byte) error {
 	var valueInteger int64
 	err := json.Unmarshal(bytes, &valueInteger)
 	if err == nil {
-		*l = MemoryBytes(valueInteger)
+		*l = BytesLength(valueInteger)
 		return nil
 	}
 	var valueString string
@@ -35,10 +35,10 @@ func (l *MemoryBytes) UnmarshalJSON(bytes []byte) error {
 	if err != nil {
 		return err
 	}
-	parsedValue, err := humanize.ParseMemoryBytes(valueString)
+	parsedValue, err := humanize.ParseBytes(valueString)
 	if err != nil {
 		return err
 	}
-	*l = MemoryBytes(parsedValue)
+	*l = BytesLength(parsedValue)
 	return nil
 }

option/ssh.go

@@ -5,7 +5,7 @@ type SSHOutboundOptions struct {
 	ServerOptions
 	User                 string           `json:"user,omitempty"`
 	Password             string           `json:"password,omitempty"`
-	PrivateKey           Listable[string] `json:"private_key,omitempty"`
+	PrivateKey           string           `json:"private_key,omitempty"`
 	PrivateKeyPath       string           `json:"private_key_path,omitempty"`
 	PrivateKeyPassphrase string           `json:"private_key_passphrase,omitempty"`
 	HostKey              Listable[string] `json:"host_key,omitempty"`

option/tls.go

@@ -26,7 +26,7 @@ type OutboundTLSOptions struct {
 	MinVersion      string                  `json:"min_version,omitempty"`
 	MaxVersion      string                  `json:"max_version,omitempty"`
 	CipherSuites    Listable[string]        `json:"cipher_suites,omitempty"`
-	Certificate     Listable[string]        `json:"certificate,omitempty"`
+	Certificate     string                  `json:"certificate,omitempty"`
 	CertificatePath string                  `json:"certificate_path,omitempty"`
 	ECH             *OutboundECHOptions     `json:"ech,omitempty"`
 	UTLS            *OutboundUTLSOptions    `json:"utls,omitempty"`

option/tls_acme.go

@@ -1,11 +1,5 @@
 package option
 
-import (
-	"github.com/sagernet/sing-box/common/json"
-	C "github.com/sagernet/sing-box/constant"
-	E "github.com/sagernet/sing/common/exceptions"
-)
-
 type InboundACMEOptions struct {
 	Domain                  Listable[string]            `json:"domain,omitempty"`
 	DataDirectory           string                      `json:"data_directory,omitempty"`
@@ -17,62 +11,9 @@ type InboundACMEOptions struct {
 	AlternativeHTTPPort     uint16                      `json:"alternative_http_port,omitempty"`
 	AlternativeTLSPort      uint16                      `json:"alternative_tls_port,omitempty"`
 	ExternalAccount         *ACMEExternalAccountOptions `json:"external_account,omitempty"`
-	DNS01Challenge          *ACMEDNS01ChallengeOptions  `json:"dns01_challenge,omitempty"`
 }
 
 type ACMEExternalAccountOptions struct {
 	KeyID  string `json:"key_id,omitempty"`
 	MACKey string `json:"mac_key,omitempty"`
 }
-
-type _ACMEDNS01ChallengeOptions struct {
-	Provider          string                     `json:"provider,omitempty"`
-	AliDNSOptions     ACMEDNS01AliDNSOptions     `json:"-"`
-	CloudflareOptions ACMEDNS01CloudflareOptions `json:"-"`
-}
-
-type ACMEDNS01ChallengeOptions _ACMEDNS01ChallengeOptions
-
-func (o ACMEDNS01ChallengeOptions) MarshalJSON() ([]byte, error) {
-	var v any
-	switch o.Provider {
-	case C.DNSProviderAliDNS:
-		v = o.AliDNSOptions
-	case C.DNSProviderCloudflare:
-		v = o.CloudflareOptions
-	default:
-		return nil, E.New("unknown provider type: " + o.Provider)
-	}
-	return MarshallObjects((_ACMEDNS01ChallengeOptions)(o), v)
-}
-
-func (o *ACMEDNS01ChallengeOptions) UnmarshalJSON(bytes []byte) error {
-	err := json.Unmarshal(bytes, (*_ACMEDNS01ChallengeOptions)(o))
-	if err != nil {
-		return err
-	}
-	var v any
-	switch o.Provider {
-	case C.DNSProviderAliDNS:
-		v = &o.AliDNSOptions
-	case C.DNSProviderCloudflare:
-		v = &o.CloudflareOptions
-	default:
-		return E.New("unknown provider type: " + o.Provider)
-	}
-	err = UnmarshallExcluded(bytes, (*_ACMEDNS01ChallengeOptions)(o), v)
-	if err != nil {
-		return E.Cause(err, "DNS01 challenge options")
-	}
-	return nil
-}
-
-type ACMEDNS01AliDNSOptions struct {
-	AccessKeyID     string `json:"access_key_id,omitempty"`
-	AccessKeySecret string `json:"access_key_secret,omitempty"`
-	RegionID        string `json:"region_id,omitempty"`
-}
-
-type ACMEDNS01CloudflareOptions struct {
-	APIToken string `json:"api_token,omitempty"`
-}

outbound/default.go

@@ -65,11 +65,7 @@ func NewConnection(ctx context.Context, this N.Dialer, conn net.Conn, metadata a
 		outConn, err = this.DialContext(ctx, N.NetworkTCP, metadata.Destination)
 	}
 	if err != nil {
-		return N.ReportHandshakeFailure(conn, err)
-	}
-	err = N.ReportHandshakeSuccess(conn)
-	if err != nil {
-		return err
+		return N.HandshakeFailure(conn, err)
 	}
 	return CopyEarlyConn(ctx, conn, outConn)
 }
@@ -84,18 +80,14 @@ func NewDirectConnection(ctx context.Context, router adapter.Router, this N.Dial
 		var destinationAddresses []netip.Addr
 		destinationAddresses, err = router.LookupDefault(ctx, metadata.Destination.Fqdn)
 		if err != nil {
-			return N.ReportHandshakeFailure(conn, err)
+			return N.HandshakeFailure(conn, err)
 		}
 		outConn, err = N.DialSerial(ctx, this, N.NetworkTCP, metadata.Destination, destinationAddresses)
 	} else {
 		outConn, err = this.DialContext(ctx, N.NetworkTCP, metadata.Destination)
 	}
 	if err != nil {
-		return N.ReportHandshakeFailure(conn, err)
-	}
-	err = N.ReportHandshakeSuccess(conn)
-	if err != nil {
-		return err
+		return N.HandshakeFailure(conn, err)
 	}
 	return CopyEarlyConn(ctx, conn, outConn)
 }
@@ -111,11 +103,7 @@ func NewPacketConnection(ctx context.Context, this N.Dialer, conn N.PacketConn,
 		outConn, err = this.ListenPacket(ctx, metadata.Destination)
 	}
 	if err != nil {
-		return N.ReportHandshakeFailure(conn, err)
-	}
-	err = N.ReportHandshakeSuccess(conn)
-	if err != nil {
-		return err
+		return N.HandshakeFailure(conn, err)
 	}
 	if destinationAddress.IsValid() {
 		if natConn, loaded := common.Cast[bufio.NATPacketConn](conn); loaded {
@@ -144,18 +132,14 @@ func NewDirectPacketConnection(ctx context.Context, router adapter.Router, this
 		var destinationAddresses []netip.Addr
 		destinationAddresses, err = router.LookupDefault(ctx, metadata.Destination.Fqdn)
 		if err != nil {
-			return N.ReportHandshakeFailure(conn, err)
+			return N.HandshakeFailure(conn, err)
 		}
 		outConn, destinationAddress, err = N.ListenSerial(ctx, this, metadata.Destination, destinationAddresses)
 	} else {
 		outConn, err = this.ListenPacket(ctx, metadata.Destination)
 	}
 	if err != nil {
-		return N.ReportHandshakeFailure(conn, err)
-	}
-	err = N.ReportHandshakeSuccess(conn)
-	if err != nil {
-		return err
+		return N.HandshakeFailure(conn, err)
 	}
 	if destinationAddress.IsValid() {
 		if natConn, loaded := common.Cast[bufio.NATPacketConn](conn); loaded {
@@ -203,7 +187,7 @@ func CopyEarlyConn(ctx context.Context, conn net.Conn, serverConn net.Conn) erro
 		}
 		_, err = serverConn.Write(payload.Bytes())
 		if err != nil {
-			return N.ReportHandshakeFailure(conn, err)
+			return N.HandshakeFailure(conn, err)
 		}
 		payload.Release()
 	}

outbound/hysteria.go

@@ -8,15 +8,15 @@ import (
 	"sync"
 
 	"github.com/sagernet/quic-go"
+	"github.com/sagernet/quic-go/congestion"
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/common/dialer"
+	"github.com/sagernet/sing-box/common/qtls"
 	"github.com/sagernet/sing-box/common/tls"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing-box/transport/hysteria"
-	"github.com/sagernet/sing-quic"
-	hyCC "github.com/sagernet/sing-quic/hysteria2/congestion"
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/bufio"
 	E "github.com/sagernet/sing/common/exceptions"
@@ -206,7 +206,7 @@ func (h *Hysteria) offerNew(ctx context.Context) (quic.Connection, error) {
 		packetConn.Close()
 		return nil, E.New("remote error: ", serverHello.Message)
 	}
-	quicConn.SetCongestionControl(hyCC.NewBrutalSender(serverHello.RecvBPS))
+	quicConn.SetCongestionControl(hysteria.NewBrutalSender(congestion.ByteCount(serverHello.RecvBPS)))
 	h.conn = quicConn
 	h.rawConn = udpConn
 	return quicConn, nil

outbound/hysteria2.go

@@ -13,8 +13,7 @@ import (
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing-box/transport/hysteria"
-	"github.com/sagernet/sing-quic/hysteria2"
+	"github.com/sagernet/sing-box/transport/hysteria2"
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/bufio"
 	E "github.com/sagernet/sing/common/exceptions"
@@ -62,8 +61,8 @@ func NewHysteria2(ctx context.Context, router adapter.Router, logger log.Context
 		Context:            ctx,
 		Dialer:             outboundDialer,
 		ServerAddress:      options.ServerOptions.Build(),
-		SendBPS:            uint64(options.UpMbps * hysteria.MbpsToBps),
-		ReceiveBPS:         uint64(options.DownMbps * hysteria.MbpsToBps),
+		SendBPS:            uint64(options.UpMbps * 1024 * 1024),
+		ReceiveBPS:         uint64(options.DownMbps * 1024 * 1024),
 		SalamanderPassword: salamanderPassword,
 		Password:           options.Password,
 		TLSConfig:          tlsConfig,

outbound/selector.go

@@ -5,7 +5,6 @@ import (
 	"net"
 
 	"github.com/sagernet/sing-box/adapter"
-	"github.com/sagernet/sing-box/common/interrupt"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
@@ -21,12 +20,10 @@ var (
 
 type Selector struct {
 	myOutboundAdapter
-	tags                         []string
-	defaultTag                   string
-	outbounds                    map[string]adapter.Outbound
-	selected                     adapter.Outbound
-	interruptGroup               *interrupt.Group
-	interruptExternalConnections bool
+	tags       []string
+	defaultTag string
+	outbounds  map[string]adapter.Outbound
+	selected   adapter.Outbound
 }
 
 func NewSelector(router adapter.Router, logger log.ContextLogger, tag string, options option.SelectorOutboundOptions) (*Selector, error) {
@@ -38,11 +35,9 @@ func NewSelector(router adapter.Router, logger log.ContextLogger, tag string, op
 			tag:          tag,
 			dependencies: options.Outbounds,
 		},
-		tags:                         options.Outbounds,
-		defaultTag:                   options.Default,
-		outbounds:                    make(map[string]adapter.Outbound),
-		interruptGroup:               interrupt.NewGroup(),
-		interruptExternalConnections: options.InterruptExistConnections,
+		tags:       options.Outbounds,
+		defaultTag: options.Default,
+		outbounds:  make(map[string]adapter.Outbound),
 	}
 	if len(outbound.tags) == 0 {
 		return nil, E.New("missing tags")
@@ -105,9 +100,6 @@ func (s *Selector) SelectOutbound(tag string) bool {
 	if !loaded {
 		return false
 	}
-	if s.selected == detour {
-		return true
-	}
 	s.selected = detour
 	if s.tag != "" {
 		if clashServer := s.router.ClashServer(); clashServer != nil && clashServer.StoreSelected() {
@@ -117,33 +109,22 @@ func (s *Selector) SelectOutbound(tag string) bool {
 			}
 		}
 	}
-	s.interruptGroup.Interrupt(s.interruptExternalConnections)
 	return true
 }
 
 func (s *Selector) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
-	conn, err := s.selected.DialContext(ctx, network, destination)
-	if err != nil {
-		return nil, err
-	}
-	return s.interruptGroup.NewConn(conn, interrupt.IsExternalConnectionFromContext(ctx)), nil
+	return s.selected.DialContext(ctx, network, destination)
 }
 
 func (s *Selector) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
-	conn, err := s.selected.ListenPacket(ctx, destination)
-	if err != nil {
-		return nil, err
-	}
-	return s.interruptGroup.NewPacketConn(conn, interrupt.IsExternalConnectionFromContext(ctx)), nil
+	return s.selected.ListenPacket(ctx, destination)
 }
 
 func (s *Selector) NewConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
-	ctx = interrupt.ContextWithIsExternalConnection(ctx)
 	return s.selected.NewConnection(ctx, conn, metadata)
 }
 
 func (s *Selector) NewPacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext) error {
-	ctx = interrupt.ContextWithIsExternalConnection(ctx)
 	return s.selected.NewPacketConnection(ctx, conn, metadata)
 }
 

outbound/shadowsocksr.go

@@ -37,7 +37,6 @@ type ShadowsocksR struct {
 }
 
 func NewShadowsocksR(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.ShadowsocksROutboundOptions) (*ShadowsocksR, error) {
-	logger.Warn("ShadowsocksR is deprecated, see https://sing-box.sagernet.org/deprecated")
 	outboundDialer, err := dialer.New(router, options.DialerOptions)
 	if err != nil {
 		return nil, err

outbound/socks.go

@@ -113,17 +113,9 @@ func (h *Socks) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.
 }
 
 func (h *Socks) NewConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
-	if h.resolve {
-		return NewDirectConnection(ctx, h.router, h, conn, metadata)
-	} else {
-		return NewConnection(ctx, h, conn, metadata)
-	}
+	return NewDirectConnection(ctx, h.router, h, conn, metadata)
 }
 
 func (h *Socks) NewPacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext) error {
-	if h.resolve {
-		return NewDirectPacketConnection(ctx, h.router, h, conn, metadata)
-	} else {
-		return NewPacketConnection(ctx, h, conn, metadata)
-	}
+	return NewDirectPacketConnection(ctx, h.router, h, conn, metadata)
 }

outbound/ssh.go

@@ -8,7 +8,6 @@ import (
 	"net"
 	"os"
 	"strconv"
-	"strings"
 	"sync"
 
 	"github.com/sagernet/sing-box/adapter"
@@ -77,10 +76,10 @@ func NewSSH(ctx context.Context, router adapter.Router, logger log.ContextLogger
 	if options.Password != "" {
 		outbound.authMethod = append(outbound.authMethod, ssh.Password(options.Password))
 	}
-	if len(options.PrivateKey) > 0 || options.PrivateKeyPath != "" {
+	if options.PrivateKey != "" || options.PrivateKeyPath != "" {
 		var privateKey []byte
-		if len(options.PrivateKey) > 0 {
-			privateKey = []byte(strings.Join(options.PrivateKey, "\n"))
+		if options.PrivateKey != "" {
+			privateKey = []byte(options.PrivateKey)
 		} else {
 			var err error
 			privateKey, err = os.ReadFile(os.ExpandEnv(options.PrivateKeyPath))

outbound/tuic.go

@@ -14,7 +14,7 @@ import (
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing-quic/tuic"
+	"github.com/sagernet/sing-box/transport/tuic"
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/bufio"
 	E "github.com/sagernet/sing/common/exceptions"

outbound/urltest.go

@@ -8,7 +8,6 @@ import (
 	"time"
 
 	"github.com/sagernet/sing-box/adapter"
-	"github.com/sagernet/sing-box/common/interrupt"
 	"github.com/sagernet/sing-box/common/urltest"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/log"
@@ -31,13 +30,12 @@ var (
 
 type URLTest struct {
 	myOutboundAdapter
-	ctx                          context.Context
-	tags                         []string
-	link                         string
-	interval                     time.Duration
-	tolerance                    uint16
-	group                        *URLTestGroup
-	interruptExternalConnections bool
+	ctx       context.Context
+	tags      []string
+	link      string
+	interval  time.Duration
+	tolerance uint16
+	group     *URLTestGroup
 }
 
 func NewURLTest(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.URLTestOutboundOptions) (*URLTest, error) {
@@ -49,12 +47,11 @@ func NewURLTest(ctx context.Context, router adapter.Router, logger log.ContextLo
 			tag:          tag,
 			dependencies: options.Outbounds,
 		},
-		ctx:                          ctx,
-		tags:                         options.Outbounds,
-		link:                         options.URL,
-		interval:                     time.Duration(options.Interval),
-		tolerance:                    options.Tolerance,
-		interruptExternalConnections: options.InterruptExistConnections,
+		ctx:       ctx,
+		tags:      options.Outbounds,
+		link:      options.URL,
+		interval:  time.Duration(options.Interval),
+		tolerance: options.Tolerance,
 	}
 	if len(outbound.tags) == 0 {
 		return nil, E.New("missing tags")
@@ -78,7 +75,7 @@ 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, s.interruptExternalConnections)
+	s.group = NewURLTestGroup(s.ctx, s.router, s.logger, outbounds, s.link, s.interval, s.tolerance)
 	return nil
 }
 
@@ -114,7 +111,7 @@ func (s *URLTest) DialContext(ctx context.Context, network string, destination M
 	outbound := s.group.Select(network)
 	conn, err := outbound.DialContext(ctx, network, destination)
 	if err == nil {
-		return s.group.interruptGroup.NewConn(conn, interrupt.IsExternalConnectionFromContext(ctx)), nil
+		return conn, nil
 	}
 	s.logger.ErrorContext(ctx, err)
 	s.group.history.DeleteURLTestHistory(outbound.Tag())
@@ -126,7 +123,7 @@ func (s *URLTest) ListenPacket(ctx context.Context, destination M.Socksaddr) (ne
 	outbound := s.group.Select(N.NetworkUDP)
 	conn, err := outbound.ListenPacket(ctx, destination)
 	if err == nil {
-		return s.group.interruptGroup.NewPacketConn(conn, interrupt.IsExternalConnectionFromContext(ctx)), nil
+		return conn, nil
 	}
 	s.logger.ErrorContext(ctx, err)
 	s.group.history.DeleteURLTestHistory(outbound.Tag())
@@ -134,12 +131,10 @@ func (s *URLTest) ListenPacket(ctx context.Context, destination M.Socksaddr) (ne
 }
 
 func (s *URLTest) NewConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
-	ctx = interrupt.ContextWithIsExternalConnection(ctx)
 	return NewConnection(ctx, s, conn, metadata)
 }
 
 func (s *URLTest) NewPacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext) error {
-	ctx = interrupt.ContextWithIsExternalConnection(ctx)
 	return NewPacketConnection(ctx, s, conn, metadata)
 }
 
@@ -149,36 +144,23 @@ func (s *URLTest) InterfaceUpdated() {
 }
 
 type URLTestGroup struct {
-	ctx                          context.Context
-	router                       adapter.Router
-	logger                       log.Logger
-	outbounds                    []adapter.Outbound
-	link                         string
-	interval                     time.Duration
-	tolerance                    uint16
-	history                      *urltest.HistoryStorage
-	checking                     atomic.Bool
-	pauseManager                 pause.Manager
-	selectedOutboundTCP          adapter.Outbound
-	selectedOutboundUDP          adapter.Outbound
-	interruptGroup               *interrupt.Group
-	interruptExternalConnections bool
+	ctx          context.Context
+	router       adapter.Router
+	logger       log.Logger
+	outbounds    []adapter.Outbound
+	link         string
+	interval     time.Duration
+	tolerance    uint16
+	history      *urltest.HistoryStorage
+	checking     atomic.Bool
+	pauseManager pause.Manager
 
 	access sync.Mutex
 	ticker *time.Ticker
 	close  chan struct{}
 }
 
-func NewURLTestGroup(
-	ctx context.Context,
-	router adapter.Router,
-	logger log.Logger,
-	outbounds []adapter.Outbound,
-	link string,
-	interval time.Duration,
-	tolerance uint16,
-	interruptExternalConnections bool,
-) *URLTestGroup {
+func NewURLTestGroup(ctx context.Context, router adapter.Router, logger log.Logger, outbounds []adapter.Outbound, link string, interval time.Duration, tolerance uint16) *URLTestGroup {
 	if interval == 0 {
 		interval = C.DefaultURLTestInterval
 	}
@@ -193,18 +175,16 @@ func NewURLTestGroup(
 		history = urltest.NewHistoryStorage()
 	}
 	return &URLTestGroup{
-		ctx:                          ctx,
-		router:                       router,
-		logger:                       logger,
-		outbounds:                    outbounds,
-		link:                         link,
-		interval:                     interval,
-		tolerance:                    tolerance,
-		history:                      history,
-		close:                        make(chan struct{}),
-		pauseManager:                 pause.ManagerFromContext(ctx),
-		interruptGroup:               interrupt.NewGroup(),
-		interruptExternalConnections: interruptExternalConnections,
+		ctx:          ctx,
+		router:       router,
+		logger:       logger,
+		outbounds:    outbounds,
+		link:         link,
+		interval:     interval,
+		tolerance:    tolerance,
+		history:      history,
+		close:        make(chan struct{}),
+		pauseManager: pause.ManagerFromContext(ctx),
 	}
 }
 
@@ -349,23 +329,5 @@ func (g *URLTestGroup) urlTest(ctx context.Context, link string, force bool) (ma
 		})
 	}
 	b.Wait()
-	g.performUpdateCheck()
 	return result, nil
 }
-
-func (g *URLTestGroup) performUpdateCheck() {
-	outbound := g.Select(N.NetworkTCP)
-	var updated bool
-	if outbound != g.selectedOutboundTCP {
-		g.selectedOutboundTCP = outbound
-		updated = true
-	}
-	outbound = g.Select(N.NetworkUDP)
-	if outbound != g.selectedOutboundUDP {
-		g.selectedOutboundUDP = outbound
-		updated = true
-	}
-	if updated {
-		g.interruptGroup.Interrupt(g.interruptExternalConnections)
-	}
-}

route/router.go

@@ -12,8 +12,8 @@ import (
 	"time"
 
 	"github.com/sagernet/sing-box/adapter"
-	"github.com/sagernet/sing-box/common/conntrack"
 	"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"
@@ -602,7 +602,6 @@ func (r *Router) RouteConnection(ctx context.Context, conn net.Conn, metadata ad
 		}
 		return nil
 	}
-	conntrack.KillerCheck()
 	metadata.Network = N.NetworkTCP
 	switch metadata.Destination.Fqdn {
 	case mux.Destination.Fqdn:
@@ -739,7 +738,6 @@ func (r *Router) RoutePacketConnection(ctx context.Context, conn N.PacketConn, m
 		}
 		return nil
 	}
-	conntrack.KillerCheck()
 	metadata.Network = N.NetworkUDP
 
 	if r.fakeIPStore != nil && r.fakeIPStore.Contains(metadata.Destination.Addr) {
@@ -917,21 +915,13 @@ func (r *Router) AutoDetectInterfaceFunc() control.Func {
 	if r.platformInterface != nil && r.platformInterface.UsePlatformAutoDetectInterfaceControl() {
 		return r.platformInterface.AutoDetectInterfaceControl()
 	} else {
-		return control.BindToInterfaceFunc(r.InterfaceFinder(), func(network string, address string) (interfaceName string, interfaceIndex int, err error) {
+		return control.BindToInterfaceFunc(r.InterfaceFinder(), func(network string, address string) (interfaceName string, interfaceIndex int) {
 			remoteAddr := M.ParseSocksaddr(address).Addr
 			if C.IsLinux {
-				interfaceName = r.InterfaceMonitor().DefaultInterfaceName(remoteAddr)
-				interfaceIndex = -1
-				if interfaceName == "" {
-					err = tun.ErrNoRoute
-				}
+				return r.InterfaceMonitor().DefaultInterfaceName(remoteAddr), -1
 			} else {
-				interfaceIndex = r.InterfaceMonitor().DefaultInterfaceIndex(remoteAddr)
-				if interfaceIndex == -1 {
-					err = tun.ErrNoRoute
-				}
+				return "", r.InterfaceMonitor().DefaultInterfaceIndex(remoteAddr)
 			}
-			return
 		})
 	}
 }

test/clash_test.go

@@ -366,7 +366,7 @@ func testLargeDataWithConn(t *testing.T, port uint16, cc func() (net.Conn, error
 }
 
 func testLargeDataWithPacketConn(t *testing.T, port uint16, pcc func() (net.PacketConn, error)) error {
-	return testLargeDataWithPacketConnSize(t, port, 1500, pcc)
+	return testLargeDataWithPacketConnSize(t, port, 1024, pcc)
 }
 
 func testLargeDataWithPacketConnSize(t *testing.T, port uint16, chunkSize int, pcc func() (net.PacketConn, error)) error {
@@ -378,30 +378,31 @@ func testLargeDataWithPacketConnSize(t *testing.T, port uint16, chunkSize int, p
 
 	rAddr := &net.UDPAddr{IP: localIP.AsSlice(), Port: int(port)}
 
-	times := 50
+	times := 2
 
 	pingCh, pongCh, test := newLargeDataPair()
 	writeRandData := func(pc net.PacketConn, addr net.Addr) (map[int][]byte, error) {
 		hashMap := map[int][]byte{}
 		mux := sync.Mutex{}
 		for i := 0; i < times; i++ {
-			buf := make([]byte, chunkSize)
-			if _, err := rand.Read(buf[1:]); err != nil {
-				t.Log(err.Error())
-				continue
-			}
-			buf[0] = byte(i)
+			go func(idx int) {
+				buf := make([]byte, chunkSize)
+				if _, err := rand.Read(buf[1:]); err != nil {
+					t.Log(err.Error())
+					return
+				}
+				buf[0] = byte(idx)
 
-			hash := md5.Sum(buf)
-			mux.Lock()
-			hashMap[i] = hash[:]
-			mux.Unlock()
+				hash := md5.Sum(buf)
+				mux.Lock()
+				hashMap[idx] = hash[:]
+				mux.Unlock()
 
-			if _, err := pc.WriteTo(buf, addr); err != nil {
-				t.Log(err.Error())
-			}
-
-			time.Sleep(10 * time.Millisecond)
+				if _, err := pc.WriteTo(buf, addr); err != nil {
+					t.Log(err.Error())
+					return
+				}
+			}(i)
 		}
 
 		return hashMap, nil

test/config/hysteria2-client.yml

@@ -1,5 +1,6 @@
 server: 127.0.0.1:10000
 auth: password
+fastOpen: true
 socks5:
   listen: 127.0.0.1:10001
 tls:

test/config/hysteria2-server.yml

@@ -2,6 +2,7 @@ listen: 127.0.0.1:10000
 auth:
   type: password
   password: password
+fastOpen: true
 tls:
   sni: example.org
   cert: /etc/hysteria/cert.pem

test/ech_test.go

@@ -244,5 +244,5 @@ func TestECHHysteria2(t *testing.T) {
 			},
 		},
 	})
-	testSuitLargeUDP(t, clientPort, testPort)
+	testSuit(t, clientPort, testPort)
 }

test/go.mod

@@ -6,16 +6,13 @@ require github.com/sagernet/sing-box v0.0.0
 
 replace github.com/sagernet/sing-box => ../
 
-replace github.com/sagernet/sing-quic => ../../sing-quic
-
 require (
 	github.com/docker/docker v24.0.6+incompatible
 	github.com/docker/go-connections v0.4.0
 	github.com/gofrs/uuid/v5 v5.0.0
-	github.com/sagernet/sing v0.2.12-0.20230921162020-494f88c9b8bf
-	github.com/sagernet/sing-quic v0.1.1-0.20230922040527-541e66a4a16d
-	github.com/sagernet/sing-shadowsocks v0.2.5
-	github.com/sagernet/sing-shadowsocks2 v0.1.4
+	github.com/sagernet/sing v0.2.10-0.20230907044649-03c21c0a1205
+	github.com/sagernet/sing-shadowsocks v0.2.5-0.20230907005610-126234728ca0
+	github.com/sagernet/sing-shadowsocks2 v0.1.4-0.20230907005906-5d2917b29248
 	github.com/spyzhov/ajson v0.9.0
 	github.com/stretchr/testify v1.8.4
 	go.uber.org/goleak v1.2.1
@@ -35,6 +32,7 @@ require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/docker/distribution v2.8.1+incompatible // indirect
 	github.com/docker/go-units v0.4.0 // indirect
+	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/fsnotify/fsnotify v1.6.0 // indirect
 	github.com/go-chi/chi/v5 v5.0.10 // indirect
 	github.com/go-chi/cors v1.2.1 // indirect
@@ -46,16 +44,14 @@ require (
 	github.com/google/btree v1.1.2 // indirect
 	github.com/google/pprof v0.0.0-20210407192527-94a9f03dee38 // indirect
 	github.com/hashicorp/yamux v0.1.1 // indirect
-	github.com/insomniacslk/dhcp v0.0.0-20230908212754-65c27093e38a // indirect
+	github.com/insomniacslk/dhcp v0.0.0-20230906122924-c71a6be05968 // indirect
 	github.com/josharian/native v1.1.0 // indirect
 	github.com/klauspost/compress v1.15.15 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.5 // indirect
-	github.com/libdns/alidns v1.0.3 // indirect
-	github.com/libdns/cloudflare v0.1.0 // indirect
 	github.com/libdns/libdns v0.2.1 // indirect
 	github.com/logrusorgru/aurora v2.0.3+incompatible // indirect
 	github.com/mholt/acmez v1.2.0 // indirect
-	github.com/miekg/dns v1.1.56 // indirect
+	github.com/miekg/dns v1.1.55 // indirect
 	github.com/moby/term v0.0.0-20221205130635-1aeaba878587 // indirect
 	github.com/morikuni/aec v1.0.0 // indirect
 	github.com/onsi/ginkgo/v2 v2.9.5 // indirect
@@ -68,18 +64,18 @@ require (
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/quic-go/qpack v0.4.0 // indirect
-	github.com/quic-go/qtls-go1-20 v0.3.4 // indirect
+	github.com/quic-go/qtls-go1-20 v0.3.3 // indirect
 	github.com/sagernet/cloudflare-tls v0.0.0-20230829051644-4a68352d0c4a // indirect
 	github.com/sagernet/go-tun2socks v1.16.12-0.20220818015926-16cb67876a61 // indirect
 	github.com/sagernet/gvisor v0.0.0-20230627031050-1ab0276e0dd2 // indirect
 	github.com/sagernet/netlink v0.0.0-20220905062125-8043b4a9aa97 // indirect
-	github.com/sagernet/quic-go v0.0.0-20230919101909-0cc6c5dcecee // indirect
+	github.com/sagernet/quic-go v0.0.0-20230831052420-45809eee2e86 // indirect
 	github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691 // indirect
-	github.com/sagernet/sing-dns v0.1.10-0.20230921024525-fc3e4c051ccd // indirect
-	github.com/sagernet/sing-mux v0.1.3 // indirect
+	github.com/sagernet/sing-dns v0.1.9-0.20230824120133-4d5cbceb40c1 // indirect
+	github.com/sagernet/sing-mux v0.1.3-0.20230907005326-7befbadbf314 // indirect
 	github.com/sagernet/sing-shadowtls v0.1.4 // indirect
-	github.com/sagernet/sing-tun v0.1.13-0.20230922035004-b6d323004edd // indirect
-	github.com/sagernet/sing-vmess v0.1.8 // indirect
+	github.com/sagernet/sing-tun v0.1.12-0.20230821065522-7545dc2d5641 // indirect
+	github.com/sagernet/sing-vmess v0.1.8-0.20230907010359-161fb0ac716b // indirect
 	github.com/sagernet/smux v0.0.0-20230312102458-337ec2a5af37 // indirect
 	github.com/sagernet/tfo-go v0.0.0-20230816093905-5a5c285d44a6 // indirect
 	github.com/sagernet/utls v0.0.0-20230309024959-6732c2ab36f2 // indirect
@@ -91,17 +87,17 @@ require (
 	github.com/zeebo/blake3 v0.2.3 // indirect
 	go.etcd.io/bbolt v1.3.7 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
-	go.uber.org/zap v1.26.0 // indirect
+	go.uber.org/zap v1.25.0 // indirect
 	go4.org/netipx v0.0.0-20230824141953-6213f710f925 // indirect
 	golang.org/x/crypto v0.13.0 // indirect
-	golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
+	golang.org/x/exp v0.0.0-20230817173708-d852ddb80c63 // indirect
 	golang.org/x/mod v0.12.0 // indirect
 	golang.org/x/sys v0.12.0 // indirect
 	golang.org/x/text v0.13.0 // indirect
 	golang.org/x/time v0.3.0 // indirect
-	golang.org/x/tools v0.13.0 // indirect
+	golang.org/x/tools v0.12.1-0.20230815132531-74c255bcf846 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20230711160842-782d3b101e98 // indirect
-	google.golang.org/grpc v1.58.1 // indirect
+	google.golang.org/grpc v1.58.0 // indirect
 	google.golang.org/protobuf v1.31.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 	gotest.tools/v3 v3.4.0 // indirect

test/go.sum

@@ -11,6 +11,7 @@ github.com/ajg/form v1.5.1 h1:t9c7v8JUKu/XxOGBU0yjNpaMloxGEJhUkqFRq0ibGeU=
 github.com/ajg/form v1.5.1/go.mod h1:uL1WgH+h2mgNtvBq0339dVnzXdBETtL2LeUXaIv25UY=
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+github.com/benbjohnson/clock v1.3.0 h1:ip6w0uFQkncKQ979AypyG0ER7mqUSBdKLOgAle/AT8A=
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 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
@@ -32,6 +33,8 @@ github.com/docker/go-connections v0.4.0 h1:El9xVISelRB7BuFusrZozjnkIM5YnzCViNKoh
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+github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
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@@ -61,8 +64,8 @@ github.com/google/pprof v0.0.0-20210407192527-94a9f03dee38/go.mod h1:kpwsk12EmLe
 github.com/hashicorp/yamux v0.1.1 h1:yrQxtgseBDrq9Y652vSRDvsKCJKOUD+GzTS4Y0Y8pvE=
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+github.com/insomniacslk/dhcp v0.0.0-20230906122924-c71a6be05968 h1:uBiv5/8x42J7myumCdFuDOc5HnEXRK6eOtefwvE6+TQ=
+github.com/insomniacslk/dhcp v0.0.0-20230906122924-c71a6be05968/go.mod h1:zmdm3sTSDP3vOOX3CEWRkkRHtKr1DxBx+J1OQFoDQQs=
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@@ -74,19 +77,14 @@ github.com/klauspost/cpuid/v2 v2.0.12/go.mod h1:g2LTdtYhdyuGPqyWyv7qRAmj1WBqxuOb
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-github.com/libdns/alidns v1.0.3/go.mod h1:e18uAG6GanfRhcJj6/tps2rCMzQJaYVcGKT+ELjdjGE=
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-github.com/libdns/cloudflare v0.1.0/go.mod h1:a44IP6J1YH6nvcNl1PverfJviADgXUnsozR3a7vBKN8=
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-github.com/miekg/dns v1.1.56 h1:5imZaSeoRNvpM9SzWNhEcP9QliKiz20/dA2QabIGVnE=
-github.com/miekg/dns v1.1.56/go.mod h1:cRm6Oo2C8TY9ZS/TqsSrseAcncm74lfK5G+ikN2SWWY=
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@@ -113,8 +111,8 @@ github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZb
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-github.com/quic-go/qtls-go1-20 v0.3.4 h1:MfFAPULvst4yoMgY9QmtpYmfij/em7O8UUi+bNVm7Cg=
-github.com/quic-go/qtls-go1-20 v0.3.4/go.mod h1:X9Nh97ZL80Z+bX/gUXMbipO6OxdiDi58b/fMC9mAL+k=
+github.com/quic-go/qtls-go1-20 v0.3.3 h1:17/glZSLI9P9fDAeyCHBFSWSqJcwx1byhLwP5eUIDCM=
+github.com/quic-go/qtls-go1-20 v0.3.3/go.mod h1:X9Nh97ZL80Z+bX/gUXMbipO6OxdiDi58b/fMC9mAL+k=
 github.com/sagernet/cloudflare-tls v0.0.0-20230829051644-4a68352d0c4a h1:wZHruBxZCsQLXHAozWpnJBL3wJ/XufDpz0qKtgpSnA4=
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@@ -123,28 +121,28 @@ github.com/sagernet/gvisor v0.0.0-20230627031050-1ab0276e0dd2 h1:dnkKrzapqtAwjTS
 github.com/sagernet/gvisor v0.0.0-20230627031050-1ab0276e0dd2/go.mod h1:1JUiV7nGuf++YFm9eWZ8q2lrwHmhcUGzptMl/vL1+LA=
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@@ -183,8 +181,8 @@ go.uber.org/goleak v1.2.1 h1:NBol2c7O1ZokfZ0LEU9K6Whx/KnwvepVetCUhtKja4A=
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-go.uber.org/zap v1.26.0 h1:sI7k6L95XOKS281NhVKOFCUNIvv9e0w4BF8N3u+tCRo=
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@@ -194,8 +192,8 @@ golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPh
 golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a/go.mod h1:P+XmwS30IXTQdn5tA2iutPOUgjI07+tq3H3K9MVA1s8=
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-golang.org/x/exp v0.0.0-20230905200255-921286631fa9 h1:GoHiUyI/Tp2nVkLI2mCxVkOjsbSXD66ic0XW0js0R9g=
-golang.org/x/exp v0.0.0-20230905200255-921286631fa9/go.mod h1:S2oDrQGGwySpoQPVqRShND87VCbxmc6bL1Yd2oYrm6k=
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+golang.org/x/exp v0.0.0-20230817173708-d852ddb80c63/go.mod h1:0v4NqG35kSWCMzLaMeX+IQrlSnVE/bqGSyC2cz/9Le8=
 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 v0.12.0 h1:rmsUpXtvNzj340zd98LZ4KntptpfRHwpFOHG188oHXc=
@@ -242,16 +240,16 @@ golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtn
 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 v0.13.0 h1:Iey4qkscZuv0VvIt8E0neZjtPVQFSc870HQ448QgEmQ=
-golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58=
+golang.org/x/tools v0.12.1-0.20230815132531-74c255bcf846 h1:Vve/L0v7CXXuxUmaMGIEK/dEeq7uiqb5qBgQrZzIE7E=
+golang.org/x/tools v0.12.1-0.20230815132531-74c255bcf846/go.mod h1:Sc0INKfu04TlqNoRA1hgpFZbhYXHPr4V5DzpSBTPqQM=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20230711160842-782d3b101e98 h1:bVf09lpb+OJbByTj913DRJioFFAjf/ZGxEz7MajTp2U=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20230711160842-782d3b101e98/go.mod h1:TUfxEVdsvPg18p6AslUXFoLdpED4oBnGwyqk3dV1XzM=
-google.golang.org/grpc v1.58.1 h1:OL+Vz23DTtrrldqHK49FUOPHyY75rvFqJfXC84NYW58=
-google.golang.org/grpc v1.58.1/go.mod h1:tgX3ZQDlNJGU96V6yHh1T/JeoBQ2TXdr43YbYSsCJk0=
+google.golang.org/grpc v1.58.0 h1:32JY8YpPMSR45K+c3o6b8VL73V+rR8k+DeMIr4vRH8o=
+google.golang.org/grpc v1.58.0/go.mod h1:tgX3ZQDlNJGU96V6yHh1T/JeoBQ2TXdr43YbYSsCJk0=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=

test/hysteria2_test.go

@@ -6,7 +6,7 @@ import (
 
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing-quic/hysteria2"
+	"github.com/sagernet/sing-box/transport/hysteria2"
 )
 
 func TestHysteria2Self(t *testing.T) {
@@ -46,9 +46,7 @@ func testHysteria2Self(t *testing.T, salamanderPassword string) {
 						Listen:     option.NewListenAddress(netip.IPv4Unspecified()),
 						ListenPort: serverPort,
 					},
-					UpMbps:   100,
-					DownMbps: 100,
-					Obfs:     obfs,
+					Obfs: obfs,
 					Users: []option.Hysteria2User{{
 						Password: "password",
 					}},
@@ -73,8 +71,6 @@ func testHysteria2Self(t *testing.T, salamanderPassword string) {
 						Server:     "127.0.0.1",
 						ServerPort: serverPort,
 					},
-					UpMbps:   100,
-					DownMbps: 100,
 					Obfs:     obfs,
 					Password: "password",
 					TLS: &option.OutboundTLSOptions{

transport/dhcp/server.go

@@ -174,7 +174,9 @@ func (t *Transport) interfaceUpdated(int) {
 
 func (t *Transport) fetchServers0(ctx context.Context, iface *net.Interface) error {
 	var listener net.ListenConfig
-	listener.Control = control.Append(listener.Control, control.BindToInterface(t.router.InterfaceFinder(), iface.Name, iface.Index))
+	listener.Control = control.Append(listener.Control, control.BindToInterfaceFunc(t.router.InterfaceFinder(), func(network string, address string) (interfaceName string, interfaceIndex int) {
+		return iface.Name, iface.Index
+	}))
 	listener.Control = control.Append(listener.Control, control.ReuseAddr())
 	packetConn, err := listener.ListenPacket(t.ctx, "udp4", "0.0.0.0:68")
 	if err != nil {

transport/hysteria/brutal.go

@@ -0,0 +1,149 @@
+package hysteria
+
+import (
+	"time"
+
+	"github.com/sagernet/quic-go/congestion"
+)
+
+const (
+	initMaxDatagramSize = 1252
+
+	pktInfoSlotCount = 4
+	minSampleCount   = 50
+	minAckRate       = 0.8
+)
+
+type BrutalSender struct {
+	rttStats        congestion.RTTStatsProvider
+	bps             congestion.ByteCount
+	maxDatagramSize congestion.ByteCount
+	pacer           *pacer
+
+	pktInfoSlots [pktInfoSlotCount]pktInfo
+	ackRate      float64
+}
+
+type pktInfo struct {
+	Timestamp int64
+	AckCount  uint64
+	LossCount uint64
+}
+
+func NewBrutalSender(bps congestion.ByteCount) *BrutalSender {
+	bs := &BrutalSender{
+		bps:             bps,
+		maxDatagramSize: initMaxDatagramSize,
+		ackRate:         1,
+	}
+	bs.pacer = newPacer(func() congestion.ByteCount {
+		return congestion.ByteCount(float64(bs.bps) / bs.ackRate)
+	})
+	return bs
+}
+
+func (b *BrutalSender) SetRTTStatsProvider(rttStats congestion.RTTStatsProvider) {
+	b.rttStats = rttStats
+}
+
+func (b *BrutalSender) TimeUntilSend(bytesInFlight congestion.ByteCount) time.Time {
+	return b.pacer.TimeUntilSend()
+}
+
+func (b *BrutalSender) HasPacingBudget(now time.Time) bool {
+	return b.pacer.Budget(now) >= b.maxDatagramSize
+}
+
+func (b *BrutalSender) CanSend(bytesInFlight congestion.ByteCount) bool {
+	return bytesInFlight < b.GetCongestionWindow()
+}
+
+func (b *BrutalSender) GetCongestionWindow() congestion.ByteCount {
+	rtt := maxDuration(b.rttStats.LatestRTT(), b.rttStats.SmoothedRTT())
+	if rtt <= 0 {
+		return 10240
+	}
+	return congestion.ByteCount(float64(b.bps) * rtt.Seconds() * 1.5 / b.ackRate)
+}
+
+func (b *BrutalSender) OnPacketSent(sentTime time.Time, bytesInFlight congestion.ByteCount,
+	packetNumber congestion.PacketNumber, bytes congestion.ByteCount, isRetransmittable bool,
+) {
+	b.pacer.SentPacket(sentTime, bytes)
+}
+
+func (b *BrutalSender) OnPacketAcked(number congestion.PacketNumber, ackedBytes congestion.ByteCount,
+	priorInFlight congestion.ByteCount, eventTime time.Time,
+) {
+	currentTimestamp := eventTime.Unix()
+	slot := currentTimestamp % pktInfoSlotCount
+	if b.pktInfoSlots[slot].Timestamp == currentTimestamp {
+		b.pktInfoSlots[slot].AckCount++
+	} else {
+		// uninitialized slot or too old, reset
+		b.pktInfoSlots[slot].Timestamp = currentTimestamp
+		b.pktInfoSlots[slot].AckCount = 1
+		b.pktInfoSlots[slot].LossCount = 0
+	}
+	b.updateAckRate(currentTimestamp)
+}
+
+func (b *BrutalSender) OnPacketLost(number congestion.PacketNumber, lostBytes congestion.ByteCount,
+	priorInFlight congestion.ByteCount,
+) {
+	currentTimestamp := time.Now().Unix()
+	slot := currentTimestamp % pktInfoSlotCount
+	if b.pktInfoSlots[slot].Timestamp == currentTimestamp {
+		b.pktInfoSlots[slot].LossCount++
+	} else {
+		// uninitialized slot or too old, reset
+		b.pktInfoSlots[slot].Timestamp = currentTimestamp
+		b.pktInfoSlots[slot].AckCount = 0
+		b.pktInfoSlots[slot].LossCount = 1
+	}
+	b.updateAckRate(currentTimestamp)
+}
+
+func (b *BrutalSender) SetMaxDatagramSize(size congestion.ByteCount) {
+	b.maxDatagramSize = size
+	b.pacer.SetMaxDatagramSize(size)
+}
+
+func (b *BrutalSender) updateAckRate(currentTimestamp int64) {
+	minTimestamp := currentTimestamp - pktInfoSlotCount
+	var ackCount, lossCount uint64
+	for _, info := range b.pktInfoSlots {
+		if info.Timestamp < minTimestamp {
+			continue
+		}
+		ackCount += info.AckCount
+		lossCount += info.LossCount
+	}
+	if ackCount+lossCount < minSampleCount {
+		b.ackRate = 1
+	}
+	rate := float64(ackCount) / float64(ackCount+lossCount)
+	if rate < minAckRate {
+		b.ackRate = minAckRate
+	}
+	b.ackRate = rate
+}
+
+func (b *BrutalSender) InSlowStart() bool {
+	return false
+}
+
+func (b *BrutalSender) InRecovery() bool {
+	return false
+}
+
+func (b *BrutalSender) MaybeExitSlowStart() {}
+
+func (b *BrutalSender) OnRetransmissionTimeout(packetsRetransmitted bool) {}
+
+func maxDuration(a, b time.Duration) time.Duration {
+	if a > b {
+		return a
+	}
+	return b
+}

transport/hysteria/pacer.go

@@ -0,0 +1,86 @@
+package hysteria
+
+import (
+	"math"
+	"time"
+
+	"github.com/sagernet/quic-go/congestion"
+)
+
+const (
+	maxBurstPackets = 10
+	minPacingDelay  = time.Millisecond
+)
+
+// The pacer implements a token bucket pacing algorithm.
+type pacer struct {
+	budgetAtLastSent congestion.ByteCount
+	maxDatagramSize  congestion.ByteCount
+	lastSentTime     time.Time
+	getBandwidth     func() congestion.ByteCount // in bytes/s
+}
+
+func newPacer(getBandwidth func() congestion.ByteCount) *pacer {
+	p := &pacer{
+		budgetAtLastSent: maxBurstPackets * initMaxDatagramSize,
+		maxDatagramSize:  initMaxDatagramSize,
+		getBandwidth:     getBandwidth,
+	}
+	return p
+}
+
+func (p *pacer) SentPacket(sendTime time.Time, size congestion.ByteCount) {
+	budget := p.Budget(sendTime)
+	if size > budget {
+		p.budgetAtLastSent = 0
+	} else {
+		p.budgetAtLastSent = budget - size
+	}
+	p.lastSentTime = sendTime
+}
+
+func (p *pacer) Budget(now time.Time) congestion.ByteCount {
+	if p.lastSentTime.IsZero() {
+		return p.maxBurstSize()
+	}
+	budget := p.budgetAtLastSent + (p.getBandwidth()*congestion.ByteCount(now.Sub(p.lastSentTime).Nanoseconds()))/1e9
+	return minByteCount(p.maxBurstSize(), budget)
+}
+
+func (p *pacer) maxBurstSize() congestion.ByteCount {
+	return maxByteCount(
+		congestion.ByteCount((minPacingDelay+time.Millisecond).Nanoseconds())*p.getBandwidth()/1e9,
+		maxBurstPackets*p.maxDatagramSize,
+	)
+}
+
+// TimeUntilSend returns when the next packet should be sent.
+// It returns the zero value of time.Time if a packet can be sent immediately.
+func (p *pacer) TimeUntilSend() time.Time {
+	if p.budgetAtLastSent >= p.maxDatagramSize {
+		return time.Time{}
+	}
+	return p.lastSentTime.Add(maxDuration(
+		minPacingDelay,
+		time.Duration(math.Ceil(float64(p.maxDatagramSize-p.budgetAtLastSent)*1e9/
+			float64(p.getBandwidth())))*time.Nanosecond,
+	))
+}
+
+func (p *pacer) SetMaxDatagramSize(s congestion.ByteCount) {
+	p.maxDatagramSize = s
+}
+
+func maxByteCount(a, b congestion.ByteCount) congestion.ByteCount {
+	if a < b {
+		return b
+	}
+	return a
+}
+
+func minByteCount(a, b congestion.ByteCount) congestion.ByteCount {
+	if a < b {
+		return a
+	}
+	return b
+}

transport/hysteria/wrap.go

@@ -6,8 +6,8 @@ import (
 	"syscall"
 
 	"github.com/sagernet/quic-go"
+	"github.com/sagernet/sing-box/common/baderror"
 	"github.com/sagernet/sing/common"
-	"github.com/sagernet/sing/common/baderror"
 )
 
 type PacketConnWrapper struct {

transport/hysteria2/client.go

@@ -0,0 +1,306 @@
+package hysteria2
+
+import (
+	"context"
+	"io"
+	"net"
+	"net/http"
+	"net/url"
+	"os"
+	"runtime"
+	"sync"
+	"time"
+
+	"github.com/sagernet/quic-go"
+	"github.com/sagernet/sing-box/common/qtls"
+	"github.com/sagernet/sing-box/common/tls"
+	"github.com/sagernet/sing-box/transport/hysteria2/congestion"
+	"github.com/sagernet/sing-box/transport/hysteria2/internal/protocol"
+	tuicCongestion "github.com/sagernet/sing-box/transport/tuic/congestion"
+	"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"
+)
+
+const (
+	defaultStreamReceiveWindow = 8388608                            // 8MB
+	defaultConnReceiveWindow   = defaultStreamReceiveWindow * 5 / 2 // 20MB
+	defaultMaxIdleTimeout      = 30 * time.Second
+	defaultKeepAlivePeriod     = 10 * time.Second
+)
+
+type ClientOptions struct {
+	Context            context.Context
+	Dialer             N.Dialer
+	ServerAddress      M.Socksaddr
+	SendBPS            uint64
+	ReceiveBPS         uint64
+	SalamanderPassword string
+	Password           string
+	TLSConfig          tls.Config
+	UDPDisabled        bool
+}
+
+type Client struct {
+	ctx                context.Context
+	dialer             N.Dialer
+	serverAddr         M.Socksaddr
+	sendBPS            uint64
+	receiveBPS         uint64
+	salamanderPassword string
+	password           string
+	tlsConfig          tls.Config
+	quicConfig         *quic.Config
+	udpDisabled        bool
+
+	connAccess sync.RWMutex
+	conn       *clientQUICConnection
+}
+
+func NewClient(options ClientOptions) (*Client, error) {
+	quicConfig := &quic.Config{
+		DisablePathMTUDiscovery:        !(runtime.GOOS == "windows" || runtime.GOOS == "linux" || runtime.GOOS == "android" || runtime.GOOS == "darwin"),
+		MaxDatagramFrameSize:           1400,
+		EnableDatagrams:                true,
+		InitialStreamReceiveWindow:     defaultStreamReceiveWindow,
+		MaxStreamReceiveWindow:         defaultStreamReceiveWindow,
+		InitialConnectionReceiveWindow: defaultConnReceiveWindow,
+		MaxConnectionReceiveWindow:     defaultConnReceiveWindow,
+		MaxIdleTimeout:                 defaultMaxIdleTimeout,
+		KeepAlivePeriod:                defaultKeepAlivePeriod,
+	}
+	return &Client{
+		ctx:                options.Context,
+		dialer:             options.Dialer,
+		serverAddr:         options.ServerAddress,
+		sendBPS:            options.SendBPS,
+		receiveBPS:         options.ReceiveBPS,
+		salamanderPassword: options.SalamanderPassword,
+		password:           options.Password,
+		tlsConfig:          options.TLSConfig,
+		quicConfig:         quicConfig,
+		udpDisabled:        options.UDPDisabled,
+	}, nil
+}
+
+func (c *Client) offer(ctx context.Context) (*clientQUICConnection, error) {
+	conn := c.conn
+	if conn != nil && conn.active() {
+		return conn, nil
+	}
+	c.connAccess.Lock()
+	defer c.connAccess.Unlock()
+	conn = c.conn
+	if conn != nil && conn.active() {
+		return conn, nil
+	}
+	conn, err := c.offerNew(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return conn, nil
+}
+
+func (c *Client) offerNew(ctx context.Context) (*clientQUICConnection, error) {
+	udpConn, err := c.dialer.DialContext(ctx, "udp", c.serverAddr)
+	if err != nil {
+		return nil, err
+	}
+	var packetConn net.PacketConn
+	packetConn = bufio.NewUnbindPacketConn(udpConn)
+	if c.salamanderPassword != "" {
+		packetConn = NewSalamanderConn(packetConn, []byte(c.salamanderPassword))
+	}
+	var quicConn quic.EarlyConnection
+	http3Transport, err := qtls.CreateTransport(packetConn, &quicConn, c.serverAddr, c.tlsConfig, c.quicConfig, true)
+	if err != nil {
+		udpConn.Close()
+		return nil, err
+	}
+	request := &http.Request{
+		Method: http.MethodPost,
+		URL: &url.URL{
+			Scheme: "https",
+			Host:   protocol.URLHost,
+			Path:   protocol.URLPath,
+		},
+		Header: make(http.Header),
+	}
+	protocol.AuthRequestToHeader(request.Header, protocol.AuthRequest{Auth: c.password, Rx: c.receiveBPS})
+	response, err := http3Transport.RoundTrip(request)
+	if err != nil {
+		if quicConn != nil {
+			quicConn.CloseWithError(0, "")
+		}
+		udpConn.Close()
+		return nil, err
+	}
+	if response.StatusCode != protocol.StatusAuthOK {
+		if quicConn != nil {
+			quicConn.CloseWithError(0, "")
+		}
+		udpConn.Close()
+		return nil, E.New("authentication failed, status code: ", response.StatusCode)
+	}
+	response.Body.Close()
+	authResponse := protocol.AuthResponseFromHeader(response.Header)
+	actualTx := authResponse.Rx
+	if actualTx == 0 || actualTx > c.sendBPS {
+		actualTx = c.sendBPS
+	}
+	if !authResponse.RxAuto && actualTx > 0 {
+		quicConn.SetCongestionControl(congestion.NewBrutalSender(actualTx))
+	} else {
+		quicConn.SetCongestionControl(tuicCongestion.NewBBRSender(
+			tuicCongestion.DefaultClock{},
+			tuicCongestion.GetInitialPacketSize(quicConn.RemoteAddr()),
+			tuicCongestion.InitialCongestionWindow*tuicCongestion.InitialMaxDatagramSize,
+			tuicCongestion.DefaultBBRMaxCongestionWindow*tuicCongestion.InitialMaxDatagramSize,
+		))
+	}
+	conn := &clientQUICConnection{
+		quicConn:    quicConn,
+		rawConn:     udpConn,
+		connDone:    make(chan struct{}),
+		udpDisabled: c.udpDisabled || !authResponse.UDPEnabled,
+		udpConnMap:  make(map[uint32]*udpPacketConn),
+	}
+	if !c.udpDisabled {
+		go c.loopMessages(conn)
+	}
+	c.conn = conn
+	return conn, nil
+}
+
+func (c *Client) DialConn(ctx context.Context, destination M.Socksaddr) (net.Conn, error) {
+	conn, err := c.offer(ctx)
+	if err != nil {
+		return nil, err
+	}
+	stream, err := conn.quicConn.OpenStream()
+	if err != nil {
+		return nil, err
+	}
+	return &clientConn{
+		Stream:      stream,
+		destination: destination,
+	}, nil
+}
+
+func (c *Client) ListenPacket(ctx context.Context) (net.PacketConn, error) {
+	if c.udpDisabled {
+		return nil, os.ErrInvalid
+	}
+	conn, err := c.offer(ctx)
+	if err != nil {
+		return nil, err
+	}
+	if conn.udpDisabled {
+		return nil, E.New("UDP disabled by server")
+	}
+	var sessionID uint32
+	clientPacketConn := newUDPPacketConn(ctx, conn.quicConn, func() {
+		conn.udpAccess.Lock()
+		delete(conn.udpConnMap, sessionID)
+		conn.udpAccess.Unlock()
+	})
+	conn.udpAccess.Lock()
+	sessionID = conn.udpSessionID
+	conn.udpSessionID++
+	conn.udpConnMap[sessionID] = clientPacketConn
+	conn.udpAccess.Unlock()
+	clientPacketConn.sessionID = sessionID
+	return clientPacketConn, nil
+}
+
+func (c *Client) CloseWithError(err error) error {
+	conn := c.conn
+	if conn != nil {
+		conn.closeWithError(err)
+	}
+	return nil
+}
+
+type clientQUICConnection struct {
+	quicConn     quic.Connection
+	rawConn      io.Closer
+	closeOnce    sync.Once
+	connDone     chan struct{}
+	connErr      error
+	udpDisabled  bool
+	udpAccess    sync.RWMutex
+	udpConnMap   map[uint32]*udpPacketConn
+	udpSessionID uint32
+}
+
+func (c *clientQUICConnection) active() bool {
+	select {
+	case <-c.quicConn.Context().Done():
+		return false
+	default:
+	}
+	select {
+	case <-c.connDone:
+		return false
+	default:
+	}
+	return true
+}
+
+func (c *clientQUICConnection) closeWithError(err error) {
+	c.closeOnce.Do(func() {
+		c.connErr = err
+		close(c.connDone)
+		c.quicConn.CloseWithError(0, "")
+	})
+}
+
+type clientConn struct {
+	quic.Stream
+	destination    M.Socksaddr
+	requestWritten bool
+	responseRead   bool
+}
+
+func (c *clientConn) NeedHandshake() bool {
+	return !c.requestWritten
+}
+
+func (c *clientConn) Read(p []byte) (n int, err error) {
+	if c.responseRead {
+		return c.Stream.Read(p)
+	}
+	status, errorMessage, err := protocol.ReadTCPResponse(c.Stream)
+	if err != nil {
+		return
+	}
+	if !status {
+		err = E.New("remote error: ", errorMessage)
+		return
+	}
+	c.responseRead = true
+	return c.Stream.Read(p)
+}
+
+func (c *clientConn) Write(p []byte) (n int, err error) {
+	if !c.requestWritten {
+		buffer := protocol.WriteTCPRequest(c.destination.String(), p)
+		defer buffer.Release()
+		_, err = c.Stream.Write(buffer.Bytes())
+		if err != nil {
+			return
+		}
+		c.requestWritten = true
+		return len(p), nil
+	}
+	return c.Stream.Write(p)
+}
+
+func (c *clientConn) LocalAddr() net.Addr {
+	return M.Socksaddr{}
+}
+
+func (c *clientConn) RemoteAddr() net.Addr {
+	return M.Socksaddr{}
+}

transport/hysteria2/client_paclet.go

@@ -0,0 +1,47 @@
+package hysteria2
+
+import E "github.com/sagernet/sing/common/exceptions"
+
+func (c *Client) loopMessages(conn *clientQUICConnection) {
+	for {
+		message, err := conn.quicConn.ReceiveMessage(c.ctx)
+		if err != nil {
+			conn.closeWithError(E.Cause(err, "receive message"))
+			return
+		}
+		go func() {
+			hErr := c.handleMessage(conn, message)
+			if hErr != nil {
+				conn.closeWithError(E.Cause(hErr, "handle message"))
+			}
+		}()
+	}
+}
+
+func (c *Client) handleMessage(conn *clientQUICConnection, data []byte) error {
+	message := udpMessagePool.Get().(*udpMessage)
+	err := decodeUDPMessage(message, data)
+	if err != nil {
+		message.release()
+		return E.Cause(err, "decode UDP message")
+	}
+	conn.handleUDPMessage(message)
+	return nil
+}
+
+func (c *clientQUICConnection) handleUDPMessage(message *udpMessage) {
+	c.udpAccess.RLock()
+	udpConn, loaded := c.udpConnMap[message.sessionID]
+	c.udpAccess.RUnlock()
+	if !loaded {
+		message.releaseMessage()
+		return
+	}
+	select {
+	case <-udpConn.ctx.Done():
+		message.releaseMessage()
+		return
+	default:
+	}
+	udpConn.inputPacket(message)
+}

transport/hysteria2/congestion/brutal.go

@@ -0,0 +1,151 @@
+package congestion
+
+import (
+	"time"
+
+	"github.com/sagernet/quic-go/congestion"
+)
+
+const (
+	initMaxDatagramSize = 1252
+
+	pktInfoSlotCount = 4
+	minSampleCount   = 50
+	minAckRate       = 0.8
+)
+
+var _ congestion.CongestionControl = &BrutalSender{}
+
+type BrutalSender struct {
+	rttStats        congestion.RTTStatsProvider
+	bps             congestion.ByteCount
+	maxDatagramSize congestion.ByteCount
+	pacer           *pacer
+
+	pktInfoSlots [pktInfoSlotCount]pktInfo
+	ackRate      float64
+}
+
+type pktInfo struct {
+	Timestamp int64
+	AckCount  uint64
+	LossCount uint64
+}
+
+func NewBrutalSender(bps uint64) *BrutalSender {
+	bs := &BrutalSender{
+		bps:             congestion.ByteCount(bps),
+		maxDatagramSize: initMaxDatagramSize,
+		ackRate:         1,
+	}
+	bs.pacer = newPacer(func() congestion.ByteCount {
+		return congestion.ByteCount(float64(bs.bps) / bs.ackRate)
+	})
+	return bs
+}
+
+func (b *BrutalSender) SetRTTStatsProvider(rttStats congestion.RTTStatsProvider) {
+	b.rttStats = rttStats
+}
+
+func (b *BrutalSender) TimeUntilSend(bytesInFlight congestion.ByteCount) time.Time {
+	return b.pacer.TimeUntilSend()
+}
+
+func (b *BrutalSender) HasPacingBudget(now time.Time) bool {
+	return b.pacer.Budget(now) >= b.maxDatagramSize
+}
+
+func (b *BrutalSender) CanSend(bytesInFlight congestion.ByteCount) bool {
+	return bytesInFlight < b.GetCongestionWindow()
+}
+
+func (b *BrutalSender) GetCongestionWindow() congestion.ByteCount {
+	rtt := b.rttStats.SmoothedRTT()
+	if rtt <= 0 {
+		return 10240
+	}
+	return congestion.ByteCount(float64(b.bps) * rtt.Seconds() * 1.5 / b.ackRate)
+}
+
+func (b *BrutalSender) OnPacketSent(sentTime time.Time, bytesInFlight congestion.ByteCount,
+	packetNumber congestion.PacketNumber, bytes congestion.ByteCount, isRetransmittable bool,
+) {
+	b.pacer.SentPacket(sentTime, bytes)
+}
+
+func (b *BrutalSender) OnPacketAcked(number congestion.PacketNumber, ackedBytes congestion.ByteCount,
+	priorInFlight congestion.ByteCount, eventTime time.Time,
+) {
+	currentTimestamp := eventTime.Unix()
+	slot := currentTimestamp % pktInfoSlotCount
+	if b.pktInfoSlots[slot].Timestamp == currentTimestamp {
+		b.pktInfoSlots[slot].AckCount++
+	} else {
+		// uninitialized slot or too old, reset
+		b.pktInfoSlots[slot].Timestamp = currentTimestamp
+		b.pktInfoSlots[slot].AckCount = 1
+		b.pktInfoSlots[slot].LossCount = 0
+	}
+	b.updateAckRate(currentTimestamp)
+}
+
+func (b *BrutalSender) OnPacketLost(number congestion.PacketNumber, lostBytes congestion.ByteCount,
+	priorInFlight congestion.ByteCount,
+) {
+	currentTimestamp := time.Now().Unix()
+	slot := currentTimestamp % pktInfoSlotCount
+	if b.pktInfoSlots[slot].Timestamp == currentTimestamp {
+		b.pktInfoSlots[slot].LossCount++
+	} else {
+		// uninitialized slot or too old, reset
+		b.pktInfoSlots[slot].Timestamp = currentTimestamp
+		b.pktInfoSlots[slot].AckCount = 0
+		b.pktInfoSlots[slot].LossCount = 1
+	}
+	b.updateAckRate(currentTimestamp)
+}
+
+func (b *BrutalSender) SetMaxDatagramSize(size congestion.ByteCount) {
+	b.maxDatagramSize = size
+	b.pacer.SetMaxDatagramSize(size)
+}
+
+func (b *BrutalSender) updateAckRate(currentTimestamp int64) {
+	minTimestamp := currentTimestamp - pktInfoSlotCount
+	var ackCount, lossCount uint64
+	for _, info := range b.pktInfoSlots {
+		if info.Timestamp < minTimestamp {
+			continue
+		}
+		ackCount += info.AckCount
+		lossCount += info.LossCount
+	}
+	if ackCount+lossCount < minSampleCount {
+		b.ackRate = 1
+	}
+	rate := float64(ackCount) / float64(ackCount+lossCount)
+	if rate < minAckRate {
+		b.ackRate = minAckRate
+	}
+	b.ackRate = rate
+}
+
+func (b *BrutalSender) InSlowStart() bool {
+	return false
+}
+
+func (b *BrutalSender) InRecovery() bool {
+	return false
+}
+
+func (b *BrutalSender) MaybeExitSlowStart() {}
+
+func (b *BrutalSender) OnRetransmissionTimeout(packetsRetransmitted bool) {}
+
+func maxDuration(a, b time.Duration) time.Duration {
+	if a > b {
+		return a
+	}
+	return b
+}

transport/hysteria2/congestion/pacer.go

@@ -0,0 +1,86 @@
+package congestion
+
+import (
+	"math"
+	"time"
+
+	"github.com/sagernet/quic-go/congestion"
+)
+
+const (
+	maxBurstPackets = 10
+	minPacingDelay  = time.Millisecond
+)
+
+// The pacer implements a token bucket pacing algorithm.
+type pacer struct {
+	budgetAtLastSent congestion.ByteCount
+	maxDatagramSize  congestion.ByteCount
+	lastSentTime     time.Time
+	getBandwidth     func() congestion.ByteCount // in bytes/s
+}
+
+func newPacer(getBandwidth func() congestion.ByteCount) *pacer {
+	p := &pacer{
+		budgetAtLastSent: maxBurstPackets * initMaxDatagramSize,
+		maxDatagramSize:  initMaxDatagramSize,
+		getBandwidth:     getBandwidth,
+	}
+	return p
+}
+
+func (p *pacer) SentPacket(sendTime time.Time, size congestion.ByteCount) {
+	budget := p.Budget(sendTime)
+	if size > budget {
+		p.budgetAtLastSent = 0
+	} else {
+		p.budgetAtLastSent = budget - size
+	}
+	p.lastSentTime = sendTime
+}
+
+func (p *pacer) Budget(now time.Time) congestion.ByteCount {
+	if p.lastSentTime.IsZero() {
+		return p.maxBurstSize()
+	}
+	budget := p.budgetAtLastSent + (p.getBandwidth()*congestion.ByteCount(now.Sub(p.lastSentTime).Nanoseconds()))/1e9
+	return minByteCount(p.maxBurstSize(), budget)
+}
+
+func (p *pacer) maxBurstSize() congestion.ByteCount {
+	return maxByteCount(
+		congestion.ByteCount((minPacingDelay+time.Millisecond).Nanoseconds())*p.getBandwidth()/1e9,
+		maxBurstPackets*p.maxDatagramSize,
+	)
+}
+
+// TimeUntilSend returns when the next packet should be sent.
+// It returns the zero value of time.Time if a packet can be sent immediately.
+func (p *pacer) TimeUntilSend() time.Time {
+	if p.budgetAtLastSent >= p.maxDatagramSize {
+		return time.Time{}
+	}
+	return p.lastSentTime.Add(maxDuration(
+		minPacingDelay,
+		time.Duration(math.Ceil(float64(p.maxDatagramSize-p.budgetAtLastSent)*1e9/
+			float64(p.getBandwidth())))*time.Nanosecond,
+	))
+}
+
+func (p *pacer) SetMaxDatagramSize(s congestion.ByteCount) {
+	p.maxDatagramSize = s
+}
+
+func maxByteCount(a, b congestion.ByteCount) congestion.ByteCount {
+	if a < b {
+		return b
+	}
+	return a
+}
+
+func minByteCount(a, b congestion.ByteCount) congestion.ByteCount {
+	if a < b {
+		return a
+	}
+	return b
+}

transport/hysteria2/internal/protocol/http.go

@@ -0,0 +1,68 @@
+package protocol
+
+import (
+	"net/http"
+	"strconv"
+)
+
+const (
+	URLHost = "hysteria"
+	URLPath = "/auth"
+
+	RequestHeaderAuth        = "Hysteria-Auth"
+	ResponseHeaderUDPEnabled = "Hysteria-UDP"
+	CommonHeaderCCRX         = "Hysteria-CC-RX"
+	CommonHeaderPadding      = "Hysteria-Padding"
+
+	StatusAuthOK = 233
+)
+
+// AuthRequest is what client sends to server for authentication.
+type AuthRequest struct {
+	Auth string
+	Rx   uint64 // 0 = unknown, client asks server to use bandwidth detection
+}
+
+// AuthResponse is what server sends to client when authentication is passed.
+type AuthResponse struct {
+	UDPEnabled bool
+	Rx         uint64 // 0 = unlimited
+	RxAuto     bool   // true = server asks client to use bandwidth detection
+}
+
+func AuthRequestFromHeader(h http.Header) AuthRequest {
+	rx, _ := strconv.ParseUint(h.Get(CommonHeaderCCRX), 10, 64)
+	return AuthRequest{
+		Auth: h.Get(RequestHeaderAuth),
+		Rx:   rx,
+	}
+}
+
+func AuthRequestToHeader(h http.Header, req AuthRequest) {
+	h.Set(RequestHeaderAuth, req.Auth)
+	h.Set(CommonHeaderCCRX, strconv.FormatUint(req.Rx, 10))
+	h.Set(CommonHeaderPadding, authRequestPadding.String())
+}
+
+func AuthResponseFromHeader(h http.Header) AuthResponse {
+	resp := AuthResponse{}
+	resp.UDPEnabled, _ = strconv.ParseBool(h.Get(ResponseHeaderUDPEnabled))
+	rxStr := h.Get(CommonHeaderCCRX)
+	if rxStr == "auto" {
+		// Special case for server requesting client to use bandwidth detection
+		resp.RxAuto = true
+	} else {
+		resp.Rx, _ = strconv.ParseUint(rxStr, 10, 64)
+	}
+	return resp
+}
+
+func AuthResponseToHeader(h http.Header, resp AuthResponse) {
+	h.Set(ResponseHeaderUDPEnabled, strconv.FormatBool(resp.UDPEnabled))
+	if resp.RxAuto {
+		h.Set(CommonHeaderCCRX, "auto")
+	} else {
+		h.Set(CommonHeaderCCRX, strconv.FormatUint(resp.Rx, 10))
+	}
+	h.Set(CommonHeaderPadding, authResponsePadding.String())
+}

transport/hysteria2/internal/protocol/padding.go

@@ -0,0 +1,31 @@
+package protocol
+
+import (
+	"math/rand"
+)
+
+const (
+	paddingChars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+)
+
+// padding specifies a half-open range [Min, Max).
+type padding struct {
+	Min int
+	Max int
+}
+
+func (p padding) String() string {
+	n := p.Min + rand.Intn(p.Max-p.Min)
+	bs := make([]byte, n)
+	for i := range bs {
+		bs[i] = paddingChars[rand.Intn(len(paddingChars))]
+	}
+	return string(bs)
+}
+
+var (
+	authRequestPadding  = padding{Min: 256, Max: 2048}
+	authResponsePadding = padding{Min: 256, Max: 2048}
+	tcpRequestPadding   = padding{Min: 64, Max: 512}
+	tcpResponsePadding  = padding{Min: 128, Max: 1024}
+)

transport/hysteria2/internal/protocol/proxy.go

@@ -0,0 +1,266 @@
+package protocol
+
+import (
+	"bytes"
+	"encoding/binary"
+	"fmt"
+	"io"
+
+	"github.com/sagernet/quic-go/quicvarint"
+	"github.com/sagernet/sing/common"
+	"github.com/sagernet/sing/common/buf"
+	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/rw"
+)
+
+const (
+	FrameTypeTCPRequest = 0x401
+
+	// Max length values are for preventing DoS attacks
+
+	MaxAddressLength = 2048
+	MaxMessageLength = 2048
+	MaxPaddingLength = 4096
+
+	MaxUDPSize = 4096
+
+	maxVarInt1 = 63
+	maxVarInt2 = 16383
+	maxVarInt4 = 1073741823
+	maxVarInt8 = 4611686018427387903
+)
+
+// TCPRequest format:
+// 0x401 (QUIC varint)
+// Address length (QUIC varint)
+// Address (bytes)
+// Padding length (QUIC varint)
+// Padding (bytes)
+
+func ReadTCPRequest(r io.Reader) (string, error) {
+	bReader := quicvarint.NewReader(r)
+	addrLen, err := quicvarint.Read(bReader)
+	if err != nil {
+		return "", err
+	}
+	if addrLen == 0 || addrLen > MaxAddressLength {
+		return "", E.New("invalid address length")
+	}
+	addrBuf := make([]byte, addrLen)
+	_, err = io.ReadFull(r, addrBuf)
+	if err != nil {
+		return "", err
+	}
+	paddingLen, err := quicvarint.Read(bReader)
+	if err != nil {
+		return "", err
+	}
+	if paddingLen > MaxPaddingLength {
+		return "", E.New("invalid padding length")
+	}
+	if paddingLen > 0 {
+		_, err = io.CopyN(io.Discard, r, int64(paddingLen))
+		if err != nil {
+			return "", err
+		}
+	}
+	return string(addrBuf), nil
+}
+
+func WriteTCPRequest(addr string, payload []byte) *buf.Buffer {
+	padding := tcpRequestPadding.String()
+	paddingLen := len(padding)
+	addrLen := len(addr)
+	sz := int(quicvarint.Len(FrameTypeTCPRequest)) +
+		int(quicvarint.Len(uint64(addrLen))) + addrLen +
+		int(quicvarint.Len(uint64(paddingLen))) + paddingLen
+	buffer := buf.NewSize(sz + len(payload))
+	bufferContent := buffer.Extend(sz)
+	i := varintPut(bufferContent, FrameTypeTCPRequest)
+	i += varintPut(bufferContent[i:], uint64(addrLen))
+	i += copy(bufferContent[i:], addr)
+	i += varintPut(bufferContent[i:], uint64(paddingLen))
+	copy(bufferContent[i:], padding)
+	buffer.Write(payload)
+	return buffer
+}
+
+// TCPResponse format:
+// Status (byte, 0=ok, 1=error)
+// Message length (QUIC varint)
+// Message (bytes)
+// Padding length (QUIC varint)
+// Padding (bytes)
+
+func ReadTCPResponse(r io.Reader) (bool, string, error) {
+	var status [1]byte
+	if _, err := io.ReadFull(r, status[:]); err != nil {
+		return false, "", err
+	}
+	bReader := quicvarint.NewReader(r)
+	msg, err := ReadVString(bReader)
+	if err != nil {
+		return false, "", err
+	}
+	paddingLen, err := quicvarint.Read(bReader)
+	if err != nil {
+		return false, "", err
+	}
+	if paddingLen > MaxPaddingLength {
+		return false, "", E.New("invalid padding length")
+	}
+	if paddingLen > 0 {
+		_, err = io.CopyN(io.Discard, r, int64(paddingLen))
+		if err != nil {
+			return false, "", err
+		}
+	}
+	return status[0] == 0, msg, nil
+}
+
+func WriteTCPResponse(ok bool, msg string, payload []byte) *buf.Buffer {
+	padding := tcpResponsePadding.String()
+	paddingLen := len(padding)
+	msgLen := len(msg)
+	sz := 1 + int(quicvarint.Len(uint64(msgLen))) + msgLen +
+		int(quicvarint.Len(uint64(paddingLen))) + paddingLen
+	buffer := buf.NewSize(sz + len(payload))
+	if ok {
+		buffer.WriteByte(0)
+	} else {
+		buffer.WriteByte(1)
+	}
+	WriteVString(buffer, msg)
+	WriteUVariant(buffer, uint64(paddingLen))
+	buffer.Extend(paddingLen)
+	buffer.Write(payload)
+	return buffer
+}
+
+// UDPMessage format:
+// Session ID (uint32 BE)
+// Packet ID (uint16 BE)
+// Fragment ID (uint8)
+// Fragment count (uint8)
+// Address length (QUIC varint)
+// Address (bytes)
+// Data...
+
+type UDPMessage struct {
+	SessionID uint32 // 4
+	PacketID  uint16 // 2
+	FragID    uint8  // 1
+	FragCount uint8  // 1
+	Addr      string // varint + bytes
+	Data      []byte
+}
+
+func (m *UDPMessage) HeaderSize() int {
+	lAddr := len(m.Addr)
+	return 4 + 2 + 1 + 1 + int(quicvarint.Len(uint64(lAddr))) + lAddr
+}
+
+func (m *UDPMessage) Size() int {
+	return m.HeaderSize() + len(m.Data)
+}
+
+func (m *UDPMessage) Serialize(buf []byte) int {
+	// Make sure the buffer is big enough
+	if len(buf) < m.Size() {
+		return -1
+	}
+	binary.BigEndian.PutUint32(buf, m.SessionID)
+	binary.BigEndian.PutUint16(buf[4:], m.PacketID)
+	buf[6] = m.FragID
+	buf[7] = m.FragCount
+	i := varintPut(buf[8:], uint64(len(m.Addr)))
+	i += copy(buf[8+i:], m.Addr)
+	i += copy(buf[8+i:], m.Data)
+	return 8 + i
+}
+
+func ParseUDPMessage(msg []byte) (*UDPMessage, error) {
+	m := &UDPMessage{}
+	buf := bytes.NewBuffer(msg)
+	if err := binary.Read(buf, binary.BigEndian, &m.SessionID); err != nil {
+		return nil, err
+	}
+	if err := binary.Read(buf, binary.BigEndian, &m.PacketID); err != nil {
+		return nil, err
+	}
+	if err := binary.Read(buf, binary.BigEndian, &m.FragID); err != nil {
+		return nil, err
+	}
+	if err := binary.Read(buf, binary.BigEndian, &m.FragCount); err != nil {
+		return nil, err
+	}
+	lAddr, err := quicvarint.Read(buf)
+	if err != nil {
+		return nil, err
+	}
+	if lAddr == 0 || lAddr > MaxMessageLength {
+		return nil, E.New("invalid address length")
+	}
+	bs := buf.Bytes()
+	m.Addr = string(bs[:lAddr])
+	m.Data = bs[lAddr:]
+	return m, nil
+}
+
+func ReadVString(reader io.Reader) (string, error) {
+	length, err := quicvarint.Read(quicvarint.NewReader(reader))
+	if err != nil {
+		return "", err
+	}
+	value, err := rw.ReadBytes(reader, int(length))
+	if err != nil {
+		return "", err
+	}
+	return string(value), nil
+}
+
+func WriteVString(writer io.Writer, value string) error {
+	err := WriteUVariant(writer, uint64(len(value)))
+	if err != nil {
+		return err
+	}
+	return rw.WriteString(writer, value)
+}
+
+func WriteUVariant(writer io.Writer, value uint64) error {
+	var b [8]byte
+	return common.Error(writer.Write(b[:varintPut(b[:], value)]))
+}
+
+// varintPut is like quicvarint.Append, but instead of appending to a slice,
+// it writes to a fixed-size buffer. Returns the number of bytes written.
+func varintPut(b []byte, i uint64) int {
+	if i <= maxVarInt1 {
+		b[0] = uint8(i)
+		return 1
+	}
+	if i <= maxVarInt2 {
+		b[0] = uint8(i>>8) | 0x40
+		b[1] = uint8(i)
+		return 2
+	}
+	if i <= maxVarInt4 {
+		b[0] = uint8(i>>24) | 0x80
+		b[1] = uint8(i >> 16)
+		b[2] = uint8(i >> 8)
+		b[3] = uint8(i)
+		return 4
+	}
+	if i <= maxVarInt8 {
+		b[0] = uint8(i>>56) | 0xc0
+		b[1] = uint8(i >> 48)
+		b[2] = uint8(i >> 40)
+		b[3] = uint8(i >> 32)
+		b[4] = uint8(i >> 24)
+		b[5] = uint8(i >> 16)
+		b[6] = uint8(i >> 8)
+		b[7] = uint8(i)
+		return 8
+	}
+	panic(fmt.Sprintf("%#x doesn't fit into 62 bits", i))
+}

transport/hysteria2/packet.go

@@ -0,0 +1,438 @@
+package hysteria2
+
+import (
+	"bytes"
+	"context"
+	"encoding/binary"
+	"errors"
+	"io"
+	"math"
+	"net"
+	"os"
+	"sync"
+	"time"
+
+	"github.com/sagernet/quic-go"
+	"github.com/sagernet/quic-go/quicvarint"
+	"github.com/sagernet/sing-box/transport/hysteria2/internal/protocol"
+	"github.com/sagernet/sing/common"
+	"github.com/sagernet/sing/common/atomic"
+	"github.com/sagernet/sing/common/buf"
+	"github.com/sagernet/sing/common/cache"
+	M "github.com/sagernet/sing/common/metadata"
+)
+
+var udpMessagePool = sync.Pool{
+	New: func() interface{} {
+		return new(udpMessage)
+	},
+}
+
+func releaseMessages(messages []*udpMessage) {
+	for _, message := range messages {
+		if message != nil {
+			*message = udpMessage{}
+			udpMessagePool.Put(message)
+		}
+	}
+}
+
+type udpMessage struct {
+	sessionID     uint32
+	packetID      uint16
+	fragmentID    uint8
+	fragmentTotal uint8
+	destination   string
+	data          *buf.Buffer
+}
+
+func (m *udpMessage) release() {
+	*m = udpMessage{}
+	udpMessagePool.Put(m)
+}
+
+func (m *udpMessage) releaseMessage() {
+	m.data.Release()
+	m.release()
+}
+
+func (m *udpMessage) pack() *buf.Buffer {
+	buffer := buf.NewSize(m.headerSize() + m.data.Len())
+	common.Must(
+		binary.Write(buffer, binary.BigEndian, m.sessionID),
+		binary.Write(buffer, binary.BigEndian, m.packetID),
+		binary.Write(buffer, binary.BigEndian, m.fragmentID),
+		binary.Write(buffer, binary.BigEndian, m.fragmentTotal),
+		protocol.WriteVString(buffer, m.destination),
+		common.Error(buffer.Write(m.data.Bytes())),
+	)
+	return buffer
+}
+
+func (m *udpMessage) headerSize() int {
+	return 8 + int(quicvarint.Len(uint64(len(m.destination)))) + len(m.destination)
+}
+
+func fragUDPMessage(message *udpMessage, maxPacketSize int) []*udpMessage {
+	if message.data.Len() <= maxPacketSize {
+		return []*udpMessage{message}
+	}
+	var fragments []*udpMessage
+	originPacket := message.data.Bytes()
+	udpMTU := maxPacketSize - message.headerSize()
+	for remaining := len(originPacket); remaining > 0; remaining -= udpMTU {
+		fragment := udpMessagePool.Get().(*udpMessage)
+		*fragment = *message
+		if remaining > udpMTU {
+			fragment.data = buf.As(originPacket[:udpMTU])
+			originPacket = originPacket[udpMTU:]
+		} else {
+			fragment.data = buf.As(originPacket)
+			originPacket = nil
+		}
+		fragments = append(fragments, fragment)
+	}
+	fragmentTotal := uint16(len(fragments))
+	for index, fragment := range fragments {
+		fragment.fragmentID = uint8(index)
+		fragment.fragmentTotal = uint8(fragmentTotal)
+		/*if index > 0 {
+			fragment.destination = ""
+			// not work in hysteria
+		}*/
+	}
+	return fragments
+}
+
+type udpPacketConn struct {
+	ctx        context.Context
+	cancel     common.ContextCancelCauseFunc
+	sessionID  uint32
+	quicConn   quic.Connection
+	data       chan *udpMessage
+	udpMTU     int
+	udpMTUTime time.Time
+	packetId   atomic.Uint32
+	closeOnce  sync.Once
+	defragger  *udpDefragger
+	onDestroy  func()
+}
+
+func newUDPPacketConn(ctx context.Context, quicConn quic.Connection, onDestroy func()) *udpPacketConn {
+	ctx, cancel := common.ContextWithCancelCause(ctx)
+	return &udpPacketConn{
+		ctx:       ctx,
+		cancel:    cancel,
+		quicConn:  quicConn,
+		data:      make(chan *udpMessage, 64),
+		defragger: newUDPDefragger(),
+		onDestroy: onDestroy,
+	}
+}
+
+func (c *udpPacketConn) ReadPacketThreadSafe() (buffer *buf.Buffer, destination M.Socksaddr, err error) {
+	select {
+	case p := <-c.data:
+		buffer = p.data
+		destination = M.ParseSocksaddr(p.destination)
+		p.release()
+		return
+	case <-c.ctx.Done():
+		return nil, M.Socksaddr{}, io.ErrClosedPipe
+	}
+}
+
+func (c *udpPacketConn) ReadPacket(buffer *buf.Buffer) (destination M.Socksaddr, err error) {
+	select {
+	case p := <-c.data:
+		_, err = buffer.ReadOnceFrom(p.data)
+		destination = M.ParseSocksaddr(p.destination)
+		p.releaseMessage()
+		return
+	case <-c.ctx.Done():
+		return M.Socksaddr{}, io.ErrClosedPipe
+	}
+}
+
+func (c *udpPacketConn) WaitReadPacket(newBuffer func() *buf.Buffer) (destination M.Socksaddr, err error) {
+	select {
+	case p := <-c.data:
+		_, err = newBuffer().ReadOnceFrom(p.data)
+		destination = M.ParseSocksaddr(p.destination)
+		p.releaseMessage()
+		return
+	case <-c.ctx.Done():
+		return M.Socksaddr{}, io.ErrClosedPipe
+	}
+}
+
+func (c *udpPacketConn) ReadFrom(p []byte) (n int, addr net.Addr, err error) {
+	select {
+	case pkt := <-c.data:
+		n = copy(p, pkt.data.Bytes())
+		destination := M.ParseSocksaddr(pkt.destination)
+		if destination.IsFqdn() {
+			addr = destination
+		} else {
+			addr = destination.UDPAddr()
+		}
+		pkt.releaseMessage()
+		return n, addr, nil
+	case <-c.ctx.Done():
+		return 0, nil, io.ErrClosedPipe
+	}
+}
+
+func (c *udpPacketConn) needFragment() bool {
+	nowTime := time.Now()
+	if c.udpMTU > 0 && nowTime.Sub(c.udpMTUTime) < 5*time.Second {
+		c.udpMTUTime = nowTime
+		return true
+	}
+	return false
+}
+
+func (c *udpPacketConn) WritePacket(buffer *buf.Buffer, destination M.Socksaddr) error {
+	defer buffer.Release()
+	select {
+	case <-c.ctx.Done():
+		return net.ErrClosed
+	default:
+	}
+	if buffer.Len() > 0xffff {
+		return quic.ErrMessageTooLarge(0xffff)
+	}
+	packetId := c.packetId.Add(1)
+	if packetId > math.MaxUint16 {
+		c.packetId.Store(0)
+		packetId = 0
+	}
+	message := udpMessagePool.Get().(*udpMessage)
+	*message = udpMessage{
+		sessionID:     c.sessionID,
+		packetID:      uint16(packetId),
+		fragmentTotal: 1,
+		destination:   destination.String(),
+		data:          buffer,
+	}
+	defer message.releaseMessage()
+	var err error
+	if c.needFragment() && buffer.Len() > c.udpMTU {
+		err = c.writePackets(fragUDPMessage(message, c.udpMTU))
+	} else {
+		err = c.writePacket(message)
+	}
+	if err == nil {
+		return nil
+	}
+	var tooLargeErr quic.ErrMessageTooLarge
+	if !errors.As(err, &tooLargeErr) {
+		return err
+	}
+	c.udpMTU = int(tooLargeErr)
+	c.udpMTUTime = time.Now()
+	return c.writePackets(fragUDPMessage(message, c.udpMTU))
+}
+
+func (c *udpPacketConn) WriteTo(p []byte, addr net.Addr) (n int, err error) {
+	select {
+	case <-c.ctx.Done():
+		return 0, net.ErrClosed
+	default:
+	}
+	if len(p) > 0xffff {
+		return 0, quic.ErrMessageTooLarge(0xffff)
+	}
+	packetId := c.packetId.Add(1)
+	if packetId > math.MaxUint16 {
+		c.packetId.Store(0)
+		packetId = 0
+	}
+	message := udpMessagePool.Get().(*udpMessage)
+	*message = udpMessage{
+		sessionID:     c.sessionID,
+		packetID:      uint16(packetId),
+		fragmentTotal: 1,
+		destination:   addr.String(),
+		data:          buf.As(p),
+	}
+	if c.needFragment() && len(p) > c.udpMTU {
+		err = c.writePackets(fragUDPMessage(message, c.udpMTU))
+		if err == nil {
+			return len(p), nil
+		}
+	} else {
+		err = c.writePacket(message)
+	}
+	if err == nil {
+		return len(p), nil
+	}
+	var tooLargeErr quic.ErrMessageTooLarge
+	if !errors.As(err, &tooLargeErr) {
+		return
+	}
+	c.udpMTU = int(tooLargeErr)
+	c.udpMTUTime = time.Now()
+	err = c.writePackets(fragUDPMessage(message, c.udpMTU))
+	if err == nil {
+		return len(p), nil
+	}
+	return
+}
+
+func (c *udpPacketConn) inputPacket(message *udpMessage) {
+	if message.fragmentTotal <= 1 {
+		select {
+		case c.data <- message:
+		default:
+		}
+	} else {
+		newMessage := c.defragger.feed(message)
+		if newMessage != nil {
+			select {
+			case c.data <- newMessage:
+			default:
+			}
+		}
+	}
+}
+
+func (c *udpPacketConn) writePackets(messages []*udpMessage) error {
+	defer releaseMessages(messages)
+	for _, message := range messages {
+		err := c.writePacket(message)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (c *udpPacketConn) writePacket(message *udpMessage) error {
+	buffer := message.pack()
+	defer buffer.Release()
+	return c.quicConn.SendMessage(buffer.Bytes())
+}
+
+func (c *udpPacketConn) Close() error {
+	c.closeOnce.Do(func() {
+		c.closeWithError(os.ErrClosed)
+		c.onDestroy()
+	})
+	return nil
+}
+
+func (c *udpPacketConn) closeWithError(err error) {
+	c.cancel(err)
+}
+
+func (c *udpPacketConn) LocalAddr() net.Addr {
+	return c.quicConn.LocalAddr()
+}
+
+func (c *udpPacketConn) SetDeadline(t time.Time) error {
+	return os.ErrInvalid
+}
+
+func (c *udpPacketConn) SetReadDeadline(t time.Time) error {
+	return os.ErrInvalid
+}
+
+func (c *udpPacketConn) SetWriteDeadline(t time.Time) error {
+	return os.ErrInvalid
+}
+
+type udpDefragger struct {
+	packetMap *cache.LruCache[uint16, *packetItem]
+}
+
+func newUDPDefragger() *udpDefragger {
+	return &udpDefragger{
+		packetMap: cache.New(
+			cache.WithAge[uint16, *packetItem](10),
+			cache.WithUpdateAgeOnGet[uint16, *packetItem](),
+			cache.WithEvict[uint16, *packetItem](func(key uint16, value *packetItem) {
+				releaseMessages(value.messages)
+			}),
+		),
+	}
+}
+
+type packetItem struct {
+	access   sync.Mutex
+	messages []*udpMessage
+	count    uint8
+}
+
+func (d *udpDefragger) feed(m *udpMessage) *udpMessage {
+	if m.fragmentTotal <= 1 {
+		return m
+	}
+	if m.fragmentID >= m.fragmentTotal {
+		return nil
+	}
+	item, _ := d.packetMap.LoadOrStore(m.packetID, newPacketItem)
+	item.access.Lock()
+	defer item.access.Unlock()
+	if int(m.fragmentTotal) != len(item.messages) {
+		releaseMessages(item.messages)
+		item.messages = make([]*udpMessage, m.fragmentTotal)
+		item.count = 1
+		item.messages[m.fragmentID] = m
+		return nil
+	}
+	if item.messages[m.fragmentID] != nil {
+		return nil
+	}
+	item.messages[m.fragmentID] = m
+	item.count++
+	if int(item.count) != len(item.messages) {
+		return nil
+	}
+	newMessage := udpMessagePool.Get().(*udpMessage)
+	*newMessage = *item.messages[0]
+	var finalLength int
+	for _, message := range item.messages {
+		finalLength += message.data.Len()
+	}
+	if finalLength > 0 {
+		newMessage.data = buf.NewSize(finalLength)
+		for _, message := range item.messages {
+			newMessage.data.Write(message.data.Bytes())
+			message.releaseMessage()
+		}
+		item.messages = nil
+		return newMessage
+	}
+	return nil
+}
+
+func newPacketItem() *packetItem {
+	return new(packetItem)
+}
+
+func decodeUDPMessage(message *udpMessage, data []byte) error {
+	reader := bytes.NewReader(data)
+	err := binary.Read(reader, binary.BigEndian, &message.sessionID)
+	if err != nil {
+		return err
+	}
+	err = binary.Read(reader, binary.BigEndian, &message.packetID)
+	if err != nil {
+		return err
+	}
+	err = binary.Read(reader, binary.BigEndian, &message.fragmentID)
+	if err != nil {
+		return err
+	}
+	err = binary.Read(reader, binary.BigEndian, &message.fragmentTotal)
+	if err != nil {
+		return err
+	}
+	message.destination, err = protocol.ReadVString(reader)
+	if err != nil {
+		return err
+	}
+	message.data = buf.As(data[len(data)-reader.Len():])
+	return nil
+}

transport/hysteria2/salamander.go

@@ -0,0 +1,106 @@
+package hysteria2
+
+import (
+	"net"
+
+	"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"
+
+	"golang.org/x/crypto/blake2b"
+)
+
+const salamanderSaltLen = 8
+
+const ObfsTypeSalamander = "salamander"
+
+type Salamander struct {
+	net.PacketConn
+	password []byte
+}
+
+func NewSalamanderConn(conn net.PacketConn, password []byte) net.PacketConn {
+	writer, isVectorised := bufio.CreateVectorisedPacketWriter(conn)
+	if isVectorised {
+		return &VectorisedSalamander{
+			Salamander: Salamander{
+				PacketConn: conn,
+				password:   password,
+			},
+			writer: writer,
+		}
+	} else {
+		return &Salamander{
+			PacketConn: conn,
+			password:   password,
+		}
+	}
+}
+
+func (s *Salamander) ReadFrom(p []byte) (n int, addr net.Addr, err error) {
+	n, addr, err = s.PacketConn.ReadFrom(p)
+	if err != nil {
+		return
+	}
+	if n <= salamanderSaltLen {
+		return 0, nil, E.New("salamander: packet too short")
+	}
+	key := blake2b.Sum256(append(s.password, p[:salamanderSaltLen]...))
+	for index, c := range p[salamanderSaltLen:n] {
+		p[index] = c ^ key[index%blake2b.Size256]
+	}
+	return n - salamanderSaltLen, addr, nil
+}
+
+func (s *Salamander) WriteTo(p []byte, addr net.Addr) (n int, err error) {
+	buffer := buf.NewSize(len(p) + salamanderSaltLen)
+	defer buffer.Release()
+	buffer.WriteRandom(salamanderSaltLen)
+	key := blake2b.Sum256(append(s.password, buffer.Bytes()...))
+	for index, c := range p {
+		common.Must(buffer.WriteByte(c ^ key[index%blake2b.Size256]))
+	}
+	_, err = s.PacketConn.WriteTo(buffer.Bytes(), addr)
+	if err != nil {
+		return
+	}
+	return len(p), nil
+}
+
+type VectorisedSalamander struct {
+	Salamander
+	writer N.VectorisedPacketWriter
+}
+
+func (s *VectorisedSalamander) WriteTo(p []byte, addr net.Addr) (n int, err error) {
+	buffer := buf.NewSize(salamanderSaltLen)
+	buffer.WriteRandom(salamanderSaltLen)
+	key := blake2b.Sum256(append(s.password, buffer.Bytes()...))
+	for i := range p {
+		p[i] ^= key[i%blake2b.Size256]
+	}
+	err = s.writer.WriteVectorisedPacket([]*buf.Buffer{buffer, buf.As(p)}, M.SocksaddrFromNet(addr))
+	if err != nil {
+		return
+	}
+	return len(p), nil
+}
+
+func (s *VectorisedSalamander) WriteVectorisedPacket(buffers []*buf.Buffer, destination M.Socksaddr) error {
+	header := buf.NewSize(salamanderSaltLen)
+	defer header.Release()
+	header.WriteRandom(salamanderSaltLen)
+	key := blake2b.Sum256(append(s.password, header.Bytes()...))
+	var bufferIndex int
+	for _, buffer := range buffers {
+		content := buffer.Bytes()
+		for index, c := range content {
+			content[bufferIndex+index] = c ^ key[bufferIndex+index%blake2b.Size256]
+		}
+		bufferIndex += len(content)
+	}
+	return s.writer.WriteVectorisedPacket(append([]*buf.Buffer{header}, buffers...), destination)
+}

transport/hysteria2/server.go

@@ -0,0 +1,336 @@
+package hysteria2
+
+import (
+	"context"
+	"io"
+	"net"
+	"net/http"
+	"os"
+	"runtime"
+	"strings"
+	"sync"
+
+	"github.com/sagernet/quic-go"
+	"github.com/sagernet/quic-go/http3"
+	"github.com/sagernet/sing-box/common/baderror"
+	"github.com/sagernet/sing-box/common/qtls"
+	"github.com/sagernet/sing-box/common/tls"
+	"github.com/sagernet/sing-box/transport/hysteria2/congestion"
+	"github.com/sagernet/sing-box/transport/hysteria2/internal/protocol"
+	tuicCongestion "github.com/sagernet/sing-box/transport/tuic/congestion"
+	"github.com/sagernet/sing/common"
+	"github.com/sagernet/sing/common/auth"
+	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/logger"
+	M "github.com/sagernet/sing/common/metadata"
+	N "github.com/sagernet/sing/common/network"
+)
+
+type ServerOptions struct {
+	Context               context.Context
+	Logger                logger.Logger
+	SendBPS               uint64
+	ReceiveBPS            uint64
+	IgnoreClientBandwidth bool
+	SalamanderPassword    string
+	TLSConfig             tls.ServerConfig
+	Users                 []User
+	UDPDisabled           bool
+	Handler               ServerHandler
+	MasqueradeHandler     http.Handler
+}
+
+type User struct {
+	Name     string
+	Password string
+}
+
+type ServerHandler interface {
+	N.TCPConnectionHandler
+	N.UDPConnectionHandler
+}
+
+type Server struct {
+	ctx                   context.Context
+	logger                logger.Logger
+	sendBPS               uint64
+	receiveBPS            uint64
+	ignoreClientBandwidth bool
+	salamanderPassword    string
+	tlsConfig             tls.ServerConfig
+	quicConfig            *quic.Config
+	userMap               map[string]User
+	udpDisabled           bool
+	handler               ServerHandler
+	masqueradeHandler     http.Handler
+	quicListener          io.Closer
+}
+
+func NewServer(options ServerOptions) (*Server, error) {
+	quicConfig := &quic.Config{
+		DisablePathMTUDiscovery:        !(runtime.GOOS == "windows" || runtime.GOOS == "linux" || runtime.GOOS == "android" || runtime.GOOS == "darwin"),
+		MaxDatagramFrameSize:           1400,
+		EnableDatagrams:                !options.UDPDisabled,
+		MaxIncomingStreams:             1 << 60,
+		InitialStreamReceiveWindow:     defaultStreamReceiveWindow,
+		MaxStreamReceiveWindow:         defaultStreamReceiveWindow,
+		InitialConnectionReceiveWindow: defaultConnReceiveWindow,
+		MaxConnectionReceiveWindow:     defaultConnReceiveWindow,
+		MaxIdleTimeout:                 defaultMaxIdleTimeout,
+		KeepAlivePeriod:                defaultKeepAlivePeriod,
+	}
+	if len(options.Users) == 0 {
+		return nil, E.New("missing users")
+	}
+	userMap := make(map[string]User)
+	for _, user := range options.Users {
+		userMap[user.Password] = user
+	}
+	if options.MasqueradeHandler == nil {
+		options.MasqueradeHandler = http.NotFoundHandler()
+	}
+	return &Server{
+		ctx:                   options.Context,
+		logger:                options.Logger,
+		sendBPS:               options.SendBPS,
+		receiveBPS:            options.ReceiveBPS,
+		ignoreClientBandwidth: options.IgnoreClientBandwidth,
+		salamanderPassword:    options.SalamanderPassword,
+		tlsConfig:             options.TLSConfig,
+		quicConfig:            quicConfig,
+		userMap:               userMap,
+		udpDisabled:           options.UDPDisabled,
+		handler:               options.Handler,
+		masqueradeHandler:     options.MasqueradeHandler,
+	}, nil
+}
+
+func (s *Server) Start(conn net.PacketConn) error {
+	if s.salamanderPassword != "" {
+		conn = NewSalamanderConn(conn, []byte(s.salamanderPassword))
+	}
+	err := qtls.ConfigureHTTP3(s.tlsConfig)
+	if err != nil {
+		return err
+	}
+	listener, err := qtls.Listen(conn, s.tlsConfig, s.quicConfig)
+	if err != nil {
+		return err
+	}
+	s.quicListener = listener
+	go s.loopConnections(listener)
+	return nil
+}
+
+func (s *Server) Close() error {
+	return common.Close(
+		s.quicListener,
+	)
+}
+
+func (s *Server) loopConnections(listener qtls.QUICListener) {
+	for {
+		connection, err := listener.Accept(s.ctx)
+		if err != nil {
+			if strings.Contains(err.Error(), "server closed") {
+				s.logger.Debug(E.Cause(err, "listener closed"))
+			} else {
+				s.logger.Error(E.Cause(err, "listener closed"))
+			}
+			return
+		}
+		go s.handleConnection(connection)
+	}
+}
+
+func (s *Server) handleConnection(connection quic.Connection) {
+	session := &serverSession{
+		Server:     s,
+		ctx:        s.ctx,
+		quicConn:   connection,
+		source:     M.SocksaddrFromNet(connection.RemoteAddr()),
+		connDone:   make(chan struct{}),
+		udpConnMap: make(map[uint32]*udpPacketConn),
+	}
+	httpServer := http3.Server{
+		Handler:        session,
+		StreamHijacker: session.handleStream0,
+	}
+	_ = httpServer.ServeQUICConn(connection)
+	_ = connection.CloseWithError(0, "")
+}
+
+type serverSession struct {
+	*Server
+	ctx           context.Context
+	quicConn      quic.Connection
+	source        M.Socksaddr
+	connAccess    sync.Mutex
+	connDone      chan struct{}
+	connErr       error
+	authenticated bool
+	authUser      *User
+	udpAccess     sync.RWMutex
+	udpConnMap    map[uint32]*udpPacketConn
+}
+
+func (s *serverSession) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	if r.Method == http.MethodPost && r.Host == protocol.URLHost && r.URL.Path == protocol.URLPath {
+		if s.authenticated {
+			protocol.AuthResponseToHeader(w.Header(), protocol.AuthResponse{
+				UDPEnabled: !s.udpDisabled,
+				Rx:         s.receiveBPS,
+				RxAuto:     s.ignoreClientBandwidth,
+			})
+			w.WriteHeader(protocol.StatusAuthOK)
+			return
+		}
+		request := protocol.AuthRequestFromHeader(r.Header)
+		user, loaded := s.userMap[request.Auth]
+		if !loaded {
+			s.masqueradeHandler.ServeHTTP(w, r)
+			return
+		}
+		s.authUser = &user
+		s.authenticated = true
+		if !s.ignoreClientBandwidth && request.Rx > 0 {
+			var sendBps uint64
+			if s.sendBPS > 0 && s.sendBPS < request.Rx {
+				sendBps = s.sendBPS
+			} else {
+				sendBps = request.Rx
+			}
+			s.quicConn.SetCongestionControl(congestion.NewBrutalSender(sendBps))
+		} else {
+			s.quicConn.SetCongestionControl(tuicCongestion.NewBBRSender(
+				tuicCongestion.DefaultClock{},
+				tuicCongestion.GetInitialPacketSize(s.quicConn.RemoteAddr()),
+				tuicCongestion.InitialCongestionWindow*tuicCongestion.InitialMaxDatagramSize,
+				tuicCongestion.DefaultBBRMaxCongestionWindow*tuicCongestion.InitialMaxDatagramSize,
+			))
+		}
+		protocol.AuthResponseToHeader(w.Header(), protocol.AuthResponse{
+			UDPEnabled: !s.udpDisabled,
+			Rx:         s.receiveBPS,
+			RxAuto:     s.ignoreClientBandwidth,
+		})
+		w.WriteHeader(protocol.StatusAuthOK)
+		if s.ctx.Done() != nil {
+			go func() {
+				select {
+				case <-s.ctx.Done():
+					s.closeWithError(s.ctx.Err())
+				case <-s.connDone:
+				}
+			}()
+		}
+		if !s.udpDisabled {
+			go s.loopMessages()
+		}
+	} else {
+		s.masqueradeHandler.ServeHTTP(w, r)
+	}
+}
+
+func (s *serverSession) handleStream0(frameType http3.FrameType, connection quic.Connection, stream quic.Stream, err error) (bool, error) {
+	if !s.authenticated || err != nil {
+		return false, nil
+	}
+	if frameType != protocol.FrameTypeTCPRequest {
+		return false, nil
+	}
+	go func() {
+		hErr := s.handleStream(stream)
+		if hErr != nil {
+			stream.CancelRead(0)
+			stream.Close()
+			s.logger.Error(E.Cause(hErr, "handle stream request"))
+		}
+	}()
+	return true, nil
+}
+
+func (s *serverSession) handleStream(stream quic.Stream) error {
+	destinationString, err := protocol.ReadTCPRequest(stream)
+	if err != nil {
+		return E.New("read TCP request")
+	}
+	var conn net.Conn = &serverConn{
+		Stream: stream,
+	}
+	ctx := s.ctx
+	if s.authUser.Name != "" {
+		ctx = auth.ContextWithUser(s.ctx, s.authUser.Name)
+	}
+	_ = s.handler.NewConnection(ctx, conn, M.Metadata{
+		Source:      s.source,
+		Destination: M.ParseSocksaddr(destinationString),
+	})
+	return nil
+}
+
+func (s *serverSession) closeWithError(err error) {
+	s.connAccess.Lock()
+	defer s.connAccess.Unlock()
+	select {
+	case <-s.connDone:
+		return
+	default:
+		s.connErr = err
+		close(s.connDone)
+	}
+	if E.IsClosedOrCanceled(err) {
+		s.logger.Debug(E.Cause(err, "connection failed"))
+	} else {
+		s.logger.Error(E.Cause(err, "connection failed"))
+	}
+	_ = s.quicConn.CloseWithError(0, "")
+}
+
+type serverConn struct {
+	quic.Stream
+	responseWritten bool
+}
+
+func (c *serverConn) HandshakeFailure(err error) error {
+	if c.responseWritten {
+		return os.ErrClosed
+	}
+	c.responseWritten = true
+	buffer := protocol.WriteTCPResponse(false, err.Error(), nil)
+	defer buffer.Release()
+	return common.Error(c.Stream.Write(buffer.Bytes()))
+}
+
+func (c *serverConn) Read(p []byte) (n int, err error) {
+	n, err = c.Stream.Read(p)
+	return n, baderror.WrapQUIC(err)
+}
+
+func (c *serverConn) Write(p []byte) (n int, err error) {
+	if !c.responseWritten {
+		c.responseWritten = true
+		buffer := protocol.WriteTCPResponse(true, "", p)
+		defer buffer.Release()
+		_, err = c.Stream.Write(buffer.Bytes())
+		if err != nil {
+			return 0, baderror.WrapQUIC(err)
+		}
+		return len(p), nil
+	}
+	n, err = c.Stream.Write(p)
+	return n, baderror.WrapQUIC(err)
+}
+
+func (c *serverConn) LocalAddr() net.Addr {
+	return M.Socksaddr{}
+}
+
+func (c *serverConn) RemoteAddr() net.Addr {
+	return M.Socksaddr{}
+}
+
+func (c *serverConn) Close() error {
+	c.Stream.CancelRead(0)
+	return c.Stream.Close()
+}

transport/hysteria2/server_packet.go

@@ -0,0 +1,55 @@
+package hysteria2
+
+import (
+	"github.com/sagernet/sing/common"
+	E "github.com/sagernet/sing/common/exceptions"
+	M "github.com/sagernet/sing/common/metadata"
+)
+
+func (s *serverSession) loopMessages() {
+	for {
+		message, err := s.quicConn.ReceiveMessage(s.ctx)
+		if err != nil {
+			s.closeWithError(E.Cause(err, "receive message"))
+			return
+		}
+		hErr := s.handleMessage(message)
+		if hErr != nil {
+			s.closeWithError(E.Cause(hErr, "handle message"))
+			return
+		}
+	}
+}
+
+func (s *serverSession) handleMessage(data []byte) error {
+	message := udpMessagePool.Get().(*udpMessage)
+	err := decodeUDPMessage(message, data)
+	if err != nil {
+		message.release()
+		return E.Cause(err, "decode UDP message")
+	}
+	s.handleUDPMessage(message)
+	return nil
+}
+
+func (s *serverSession) handleUDPMessage(message *udpMessage) {
+	s.udpAccess.RLock()
+	udpConn, loaded := s.udpConnMap[message.sessionID]
+	s.udpAccess.RUnlock()
+	if !loaded || common.Done(udpConn.ctx) {
+		udpConn = newUDPPacketConn(s.ctx, s.quicConn, func() {
+			s.udpAccess.Lock()
+			delete(s.udpConnMap, message.sessionID)
+			s.udpAccess.Unlock()
+		})
+		udpConn.sessionID = message.sessionID
+		s.udpAccess.Lock()
+		s.udpConnMap[message.sessionID] = udpConn
+		s.udpAccess.Unlock()
+		go s.handler.NewPacketConnection(udpConn.ctx, udpConn, M.Metadata{
+			Source:      s.source,
+			Destination: M.ParseSocksaddr(message.destination),
+		})
+	}
+	udpConn.inputPacket(message)
+}

transport/sip003/v2ray.go

@@ -32,7 +32,7 @@ func newV2RayPlugin(ctx context.Context, pluginOpts Args, router adapter.Router,
 		certHead := "-----BEGIN CERTIFICATE-----"
 		certTail := "-----END CERTIFICATE-----"
 		fixedCert := certHead + "\n" + certRaw + "\n" + certTail
-		tlsOptions.Certificate = []string{fixedCert}
+		tlsOptions.Certificate = fixedCert
 	}
 
 	mode := "websocket"